Support apparatus or a concrete form system

Information

  • Patent Grant
  • 6237890
  • Patent Number
    6,237,890
  • Date Filed
    Wednesday, January 13, 1999
    26 years ago
  • Date Issued
    Tuesday, May 29, 2001
    23 years ago
Abstract
A support apparatus with a tie lock tool and a clamp for a concrete form system. Opposing form panels are held in fixed relation to one another with at least one form tie having either a loop head or button head extending between the form panels. A tie lock tool engages a waler positioned on the form panel. The tie lock tool has a form tie opening, configured to receive the head. A lock member, of the tie lock tool, has two claws and is rotatable between an unlocked and a locked position. The first claw has an extension beyond the second claw for abutting the head extended through the form tie opening when the lock member is unlocked. When the lock member is locked, the head is firmly held, thus securing the form tie to the tie lock tool, the waler and the form panel. A strong back of variable depth is secured to the tie lock tool with an adjustable clamp. Two arms of the clamp are connected to the tie lock tool, and an adjustable clamp member engages and tightens against the variable depth strong back to secure the strong back to the tie lock tool and support the concrete form system.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates generally to the field of concrete form systems. More specifically, the present invention discloses a support apparatus including a tie lock tool and a clamp for use with concrete form panels.




2. Statement of the Problem




Concrete form systems have been used for many years for concrete wall construction. In these systems, form panels are arranged opposing one another to provide a space into which concrete is poured to form the wall. Form ties, extending between and secured to the form panels, maintain a fixed distance between the form panels. After the form system is erected, concrete is poured between the form panels and allowed to harden, after which the form panels are removed.




The form ties are often secured to the form panels using a tie lock tool. Conventional tie lock tools, such as that. disclosed in co-owned U.S. Pat. No. 4,304,388, have a lock member with a single claw that grasps a head of the form tie. Aligning the head of the form tie to fit onto the single claw of the conventional tie lock tool can be labor intensive. For instance, at one time the head is too low to catch on the single claw, and another time the head is too high to catch on the single claw. Therefore, a worker must align the head with the claw while rotating the lock member to the locked position. Often, this process requires the assistance of a second worker. Therefore, a need exists to provide a tie lock tool that aligns the head with the claw.




In addition, a single claw can only grasp a loop head or a head having a hole formed therein. However, form ties having different head styles are available, such as button heads. U.S. Pat. No. 4,304,388 discloses a tie lock tool having two claws for grasping a button head, but the head must still be aligned to fit between the two claws. Therefore, a need also exists to provide a tie lock tool that can be used with form ties having different types of heads, for example, a button head or a loop head.




The lock member of the conventional tie lock tool is rotatably attached using a rivet. When concrete is poured between the form panels, substantial pressure is placed on the form ties, causing the claw of the tie lock tool to bear a substantial load. Therefore, a need exists to reduce this load on the claw.




Clamps are often used to secure a strong back (conventionally 2×4 lumber) to the form panels to support the concrete form system. Conventional clamps, such as that disclosed in co-owned U.S. Pat. No. 4,304,388, have a 3-gauge wire yoke that attaches to the tie lock tool. However, these clamps only provide a working load of 1,000 lbs.




In some circumstances, it is be desirable to increase the total load-bearing capacity above 1,000 lbs, for example, when longer or wider walls are poured in a concrete form system. Therefore, a need exists to provide a support apparatus that can handle such increased loads by increasing the strength of strong back clamps.




Conventional clamps are made to secure a conventional 2×4 lumber (1½ inch wide×3½ inch deep) strong back. However, 2×4 lumber is not always made to industry standards, and in some cases, 2×4 lumber sizes can vary from that of a conventional 2×4. Therefore, when the depth of the strong back is too small, the conventional clamp only loosely holds the strong back to the form panel. On the other hand, when the depth of the strong back is too large, the conventional clamp is difficult to close, especially if the lumber is hard (e.g., where there is a knot in the lumber). Likewise, different concrete jobs can require different size strong backs be used (e.g., 2×6 lumber). Thus, conventional clamps only work consistently with conventional size strong backs. A need therefore exists to provide a clamp that can be adjusted to secure strong backs of various depths.




In addition, a clamp must be functional under working conditions that include splattering concrete. Thus, a need exists to provide a clamp will not be easily obstructed. Furthermore, it is desirable to provide a clamp that can be attached by a single worker, possibly using a single hand. Therefore, needs exist to provide a clamp that will not fall out of position before the worker can connect it, and a clamp that will not slip with respect to the strong back as it is being tightened.




Finally, many concrete contractors already have a set of conventional tie lock tools and conventional clamps for use with concrete form systems, and only want to supplement their existing equipment or replace broken hardware. Therefore, yet another need exists to provide a tie lock tool and a clamp that can be used with conventional concrete form systems and existing hardware.




Support apparatuses for concrete form systems have been used in the past, including the following:




















Inventor




U.S. Pat. No.




Issue Date













Gates




3,908,956




Sep. 30, 1975







Gates




4,158,452




Jun. 19, 1979







Gates




4,304,388




Dec. 8, 1981







Gates




4,899,978




Feb. 13, 1990







Page




5,110,083




May 5, 1992















U.S. Pat. No. 3,908,956 relates to a free-standing upwardly-convergent pouring form that is held in place by tie members and anchor members. Opposite ends of the tie members are releasably connected to their respective panels with latches.




U.S. Pat. No. 4,158,452 teaches a clamping lock for use with a looped tie in a concrete form. An anchor lock having a tapered claw is mounted on the clamping lock so that its claw can enter into a tie loop to secure the tie to the clamping lock and to tension the tie.




U.S. Pat. No. 4,304,388 discloses a form tie lock tool having a lock member for use with hand-set concrete panels and an anchor lock member for use with gang form concrete panels. An alternative embodiment discloses using a form tie having a button head with a modified tie lock tool 104 having a double claw arrangement (e.g., FIGS. 10-13).




U.S. Pat. No. 4,899,978 discloses a form tie lock that is releasably locked in an open position and swings over center to a closed position.




U.S. Pat. No. 5,110,083 discloses a Ross Staging Bracket that holds sections of forming walling in parallel rows. A rotatable lock means for engaging with a form tie is pivotally mounted to and beneath a first horizontal waler support plate.




None of the above patents provide a solution to the above-stated needs.




SUMMARY OF THE INVENTION




1. Solution to the Problem




The present invention solves the needs set forth above by providing a support apparatus having a tie lock tool and an adjustable clamp for use with a concrete form system.




The tie lock tool of the present invention has a lock member rotatable between an unlocked position and a locked position. The lock member has a first claw and a second claw that are radially coexistent and spaced from one another. In addition, the tie lock tool has a form tie opening configured to receive either a loop head or a button head. These features permit use of a form tie having either a loop head or a button head with the tie lock tool of the present invention.




The first claw of the tie lock tool of the present invention has an extension beyond the second claw. Thus, when the lock member is in the unlocked position and the head of the form tie is inserted through the form panel, the head abuts the extension of the first claw, automatically aligning the head so that it can be grasped and firmly held by the lock member as it is rotated to the locked position. That is, the extension automatically aligns the loop head so that it is held only by the second claw, whereas the button head is automatically aligned by the extension so that it is held by both claws.




When concrete is poured between the form panels of the support apparatus it exerts substantial force through the form tie onto the claws. In order to buttress the second claw, radius rest bars are disposed on the tie lock tool to offset the load on the second claw. For the same reason, the first claw is made thicker than the second claw, so that the first claw effectively bears the load when a button head is used. Additional strength is also provided by using a minimum height rivet to attach the lock member of the present invention, to the tie lock tool, thus reducing the bending moment of the rivet.




The support apparatus also comprises a clamp for securing a strong back of variable depth to the concrete form system. The clamp secures the strong back to the form system by attaching to the tie lock tool. The clamp has two arms that are loosely fit to a clamp member. Each arm is spreadable only within a plane parallel to the clamp member so as to fit onto the tie lock tool without falling out of position with respect to the tie lock tool when the arms are fitted onto the tie lock tool. In addition, the arms are manufactured to provide greater strength and durability than the 3-gauge wire of conventional clamps in order to bear a larger load when concrete is poured.




The clamp member of the clamp of the present invention is adjustable. That is, the clamp member comprises an engagement surface that tightens against the strong back so that strong backs of various depths can be securely clamped to the tie lock tool. In a preferred embodiment, the clamp member comprises an adjustable rod, and a block threaded therethrough. The rod is adjustable using a rope thread, thus providing an inexpensive, yet durable manner with which to adjust the clamp of the present invention. In addition, a centering point disposed on the engagement surface of the rod fixedly guides the rod against the strong back so that the engagement surface does not slip as it is tightened against the strong back. The rod is threaded using a conventional rope thread (e.g., having the threads widely spaced from one another) to reduce the effect of obstructions, such as splattered concrete, on the adjustability of the rod.




Finally, the tie lock tool and the clamp of the present invention are interchangeable with conventionally available support apparatus hardware (e.g., form panels, form ties, and strong backs). In addition, the adjustable clamp or tie lock tool of the present invention can be used with the conventional tie lock tool or clamp disclosed in co-owned U.S. Pat. No. 4,304,388.




2. Summary




The present invention comprises a support apparatus for use with a concrete form system. The concrete form system conventionally has opposing form panels. Each form panel has a first side, a second side, and at least one panel opening therethrough. The form panels are held in fixed relation to one another, with the second sides in a facing relation, by at least one form tie. A head is disposed on one end of the form tie and extends through the panel opening substantially perpendicular beyond the first side of the form panel. The head is preferably either a loop head or a button head.




A waler is positioned on the first side of the form panel adjacent to the panel opening. A tie lock tool engages the waler and attaches to the form tie. The tie lock tool has a bracket member that abuts the waler. The bracket member comprises a plate with a first end and a second end. A first flange is disposed in a perpendicular orientation on the first end of the plate and abuts the first side of the form panel. A form tie opening is formed at the first end of the plate and extends into the plate and into the first flange, and is configured to receive the head of the form tie, whether it is a loop head or a button head. A second flange disposed on the second end of the plate extends in a direction opposite and substantially parallel to the first flange to abut the waler.




A lock member is rotatably attached to the bracket member, preferably to the plate, and is rotatable between an unlocked position and a locked position. A first claw and a second claw are spaced in radial coexistance from each other on the lock member. The first claw has an extension beyond the second claw. Thus, when the head of the form tie extends through the form tie opening, the head abuts the extension of said first claw when the lock member is in the unlocked position. This automatically aligns the head of the form tie with the claws. When the lock member is thereafter rotated to the locked position, the head is guided onto and firmly held by the lock member so that the head of the form tie is secured to the tie lock tool, the waler, and the form panel, thus supporting the concrete form system.




In a preferred embodiment, radius rest bars are disposed on the bracket member between the plate and the first flange to reduce the load on the second claw. The first claw is formed sufficiently thick to withstand the load when a button head is used. The tie lock tool further has knobs disposed on opposing sides of the bracket member adjacent to the second flange. Each knob has a hooked end, so that a clamp can be attached to the tie lock tool.




A strong back of variable depth abuts the second flange portion of the tie lock tool between the knobs and is secured to the tie lock tool with an adjustable clamp. The clamp comprises a clamp member, which preferably has a block with a rod hole formed therein, and a rod engaging the rod hole. An arm is fitted on each of two shoulders, oppositely disposed on the block, so that the movement of the arms is restricted within a plane parallel to the rod. Connectors on each of the arms opposite the shoulders are attached to the hooked ends of the knobs. The rod has an engagement surface disposed on one end. A handle on the opposite end of the rod is used to move the rod through the rod hole until the engagement surface tightens against the strong back, irregardless of the actual depth of the strong back. Thus, the strong back is secured to the tie lock tool to support the concrete form system.




These and other advantages, features, and objects of the present invention will be more readily understood in view of the following detailed description and the drawings.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view of a prior art tie lock tool and a prior art clamp for use with concrete form panels.





FIG. 2



a


is a perspective view of the support apparatus of the present invention in use with a concrete form panel.





FIG. 2



b


is a perspective view of the tie lock tool and the clamp of the support apparatus of

FIG. 2



a.







FIGS. 3



a


,


3




b


, and


3




c


show a top view, side view, and front view, respectively, of a lock member of the present invention.





FIG. 4



a


shows a top view of a tie lock tool of the present invention in the unlocked position with a form tie having a loop head.





FIG. 4



b


is a front view of the tie lock tool of

FIG. 4



a.







FIG. 4



c


shows a top view of the tie lock tool of

FIG. 4



a


in the locked position.





FIGS. 5



a


and


5




b


illustrate a perspective view of a tie lock tool of the present invention with the tie lock member in the unlocked position, and the insertion of a form tie having a loop head.





FIG. 5



c


shows a perspective view of the lock member of

FIG. 5



a


in the locked position.





FIG. 6



a


shows a top view of a tie lock tool of the present invention in the unlocked position with a form tie having a button head.





FIG. 6



b


is a front view of the tie lock tool of

FIG. 6



a.







FIG. 6



c


shows a top view of the tie lock tool of

FIG. 6



a


in the locked position.





FIGS. 7



a


and


7




b


illustrate a perspective view of a tie lock tool of the present invention with the tie lock member in the unlocked position, and the insertion of a form tie having a button head

FIG. 7



c


shows a perspective view of the lock member of

FIG. 7



a


in the locked position.





FIG. 8



a


shows a top view of a clamp of the present invention in an unlocked position.





FIG. 8



b


shows the clamp of

FIG. 8



a


in a locked position.





FIGS. 9



a


,


9




b


, and


9




c


are cross section views of a clamp of the present invention securing strong backs of various depths to a tie lock tool.











DETAILED DESCRIPTION OF THE INVENTION




1. Overview




Concrete form systems are conventionally used to build concrete walls. Generally, a concrete form system has opposing form panels held in fixed relation to one another by form ties. The concrete form system is assembled using a support apparatus having a waler and a tie lock tool adjacent to the waler that attaches to the form tie. Optionally, a strong back can be secured with a clamp to the form panels, for additional support and alignment of the concrete form system.





FIG. 1

shows a tie lock tool


1000


of a prior art support apparatus. A form tie


50


extends between opposing form panels


30


(only one of which is shown) to hold the form panels


30


in fixed relation to one another. The form tie


50


is secured to the form panel


30


by locking the tie lock tool


1000


onto a loop head


55


of the form tie


50


. While locking onto the form tie


50


, the tie lock tool


1000


also secures a waler


35


to the form panel


30


. Alternatively, the waler


35


can be secured to the form panel


30


by conventional attachment devices such as screws, nails, glue, or any other suitable attachment devices.





FIG. 1

also shows a strong back


150


used to further support and align the form panel


30


. The strong back


150


is generally placed perpendicular to the waler


35


and secured to the tie lock tool


1000


using a clamp


2000


. The clamp


2000


has a wire yoke


1160


, typically 3-gauge wire, that is fitted around the strong back


150


and connected to the tie lock tool


1000


. The handle portion


1170


of the clamp


2000


rotates in the direction of arrow


1175


and presses the strong back


150


against the tie lock tool


1000


, thus securing the strong back


150


to the tie lock tool


1000


.




Form panels


30


are conventionally made from sheet plywood, and the waler


35


and the strong back


150


are typically “two-by-four” (2×4) lumber. However, the material used to make the form panel


30


, the waler


35


, and strong back


150


is immaterial to the prior art and the present invention, and either or both the form panel


30


and the waler


35


could be made from steel, wood, a plastic such as polyurethane, or any other suitable material that provides the requisite strength for supporting concrete poured between the two form panels


30


. In addition, form panels


30


can be of any desired dimension and typically require more than one tie lock tool


1000


to support the form panels


30


. Likewise, the form tie


50


is conventionally made of steel, but other materials that provide the requisite strength can be used.





FIG. 2



a


shows a support apparatus


5


of the present invention. The support apparatus


5


can be used with a conventional concrete form system, as described above and as shown in

FIG. 2



a


, having at least a form panel


30


and a form tie


50


. Preferably, opposing form panels


30


having a first side


31


and a second side


32


are positioned so that the second sides


32


are in a facing relationship to one another. Form panels


30


are fixedly positioned by the form ties


50


extending therebetween. Panel openings


440


are formed within the form panels


30


. As before, a waler


35


is positioned on the first side


31


of the form panel


30


adjacent to a panel opening


440


in the form panel


30


. The head


55


,


57


of the form tie


50


extends through the panel opening


440


. In addition to the form panel


30


and the waler


35


, the support apparatus


5


preferably comprises a tie lock tool


10


, a clamp


20


, and a strong back


150


.




In a preferred embodiment, the tie lock tool


10


engages the waler


35


to secure the waler


35


to the form panel


30


. However, as discussed above, the waler


35


can be secured to the form panel


30


either with the tie lock tool


10


or with other suitable attachment devices. In a preferred embodiment, each tie lock tool


10


is placed underneath the waler


35


except for the lowermost tie lock tool


10


, which is positioned above the lowermost waler


35


, as shown in

FIG. 2



a


. However, it is to be expressly understood that the tie lock tool


10


can be positioned in any orientation. Indeed, the walers


35


can be positioned vertically, so that the tie lock tool


10


is placed beside (as opposed to over or under) the waler


35


. Likewise, the form panels


30


need not be arranged in opposing relation to one another. For example, a single form panel


30


can be used in conjunction with a form tie


50


secured to an existing structure (e.g., to widen an existing wall).





FIG. 2



b


illustrates the support apparatus


5


of the present invention in greater detail. The support apparatus


5


preferably comprises a tie lock tool


10


and a clamp


20


. The tie lock tool


10


engages the waler


35


. The tie lock tool


10


has a bracket member


60


that abuts the form panel


30


and the waler


35


. A lock member


100


is pivotally disposed on the bracket member


60


. The lock member


100


has a handle portion


110


attached to a first claw


200


and a second claw


210


. The first claw


200


and the second claw


210


are preferably spaced from one another and radially coextensive. The two claws


200


,


210


enable the tie lock tool


10


of the present invention to be used with a form tie


50


having either a loop head


55


, as shown in

FIG. 2



a


, or a button head


57


, as shown in

FIG. 2



b


. The first claw


200


has an extension


205


extending beyond the second claw


210


. The extension


205


acts as a guide for aligning the head


55


,


57


of the form tie


50


with the lock member


100


, thus reducing the time and labor required to align the head


55


,


57


with the lock member


100


, as discussed in more detail below with respect to

FIGS. 4-7

.





FIG. 2



b


also shows the clamp


20


of the support apparatus


5


of the present invention. The clamp


20


has a clamp member


265


to which two arms


220


are attached. A strong back


150


is placed abutting the bracket member


60


of the tie lock tool


10


. The arms


220


are placed around strong back


150


and connected to the tie lock tool


10


using connectors


225


. The clamp member


265


is then adjusted until an engagement surface


270


contacts the strong back


150


. The clamp member


265


is then tightened against the strong back


150


to secure the strong back


150


to the tie lock tool


10


and to support the concrete form system, as discussed more fully below with respect to

FIGS. 8 and 9

.




An important feature of the tie lock tool


10


and the clamp


20


of the present invention is the interchangeability of hardware. The tie lock tool


10


of the present invention can be used with either the clamp


20


of the present invention or a conventional clamp


2000


. Likewise, the clamp


20


of the present invention can be used with either the tie lock tool


10


of the present invention, or with a conventional tie lock tool


1000


. Furthermore, the tie lock tool


10


and the clamp


20


of the present invention can be used side by side with conventional hardware on a single concrete form system.




2. Details of the Tie Lock Tool


10






The tie lock tool


10


secures the form tie


50


and the waler


35


to the form panel


30


of the concrete form system as shown in

FIG. 2



b


. The bracket member


60


of the tie lock tool


10


has a plate


70


that abuts the waler


35


. The plate


70


has a first end


71


and a second end


72


. A first flange


80


is attached in a perpendicular orientation to the plate


70


at the first end


71


. The first flange


80


abuts the first side


31


of the form panel


30


. A second flange


90


is attached to the plate


70


in a direction opposite and substantially parallel to the first flange


80


at the second end


72


. The second flange


90


abuts the waler


35


.




In a preferred embodiment, the plate


70


, first flange


80


, and second flange


90


are cast as a single bracket member


60


. However, it is to be understood that the plate


70


, first flange


80


, and second flange


90


can be cast separately and assembled to form the bracket member


60


. Likewise, the second flange


90


can be formed into two prongs as shown in

FIG. 2



b


, or can be a solid plate (not illustrated). In either case, the second flange


90


is substantially parallel to the first flange


80


. In other words, the second flange


90


is preferably assembled at ninety degrees to plate


70


and parallel to the first flange


80


, or the second flange


90


can be slanted slightly toward plate


70


so that it pulls the waler


35


toward the form panel


30


, and tensions the form tie


50


, when the tie lock tool


10


is locked, as more fully described below. In another embodiment, not illustrated, the first flange


80


is attached or cast at a preset angle relative to the plate


70


, for example, when one or even both faces of the concrete wall are to have a facial slope of sixty degrees. In such an embodiment, the first flange


80


is positioned at sixty degrees with respect to plate


70


, and the second flange


90


would therefore be perpendicular to the plate


70


instead of parallel to the first flange


80


. In yet another embodiment (not shown), for example, in which the waler


35


is attached by an attachment device as described above, the bracket member


60


does not include second flange


90


at all.




In a preferred embodiment, two knobs


130


are disposed on opposing sides of the second end


72


of the bracket member


60


, as shown in

FIG. 2



b


. The knobs


130


each have a hooked end


140


formed thereon for attaching to connectors


225


of a clamp


20


.




Preferably, the knobs


130


and hooked ends


140


are cast as an integral part of the bracket member


60


. However, it is to be expressly understood that the hooked ends


140


can be cast separately and then attached to the bracket member


60


. The knobs


130


and the hooked ends


140


can be positioned on the second flange


90


, rather than the second end


72


.




In the preferred embodiment shown in

FIG. 2



b


, the clamp


20


is attached to the tie lock tool


10


when the connectors


225


fit over the hooks


140


. However, it is to be expressly understood that any type of connection system can be used so long as it enables the clamp


20


to be firmly attached to the tie lock tool


10


. For example (not shown), a locking device can be formed within the second flange, perhaps having a rod therein that the clamp


20


connects to. Other methods of attaching the clamp


20


to the tie lock tool


10


will be evident to those skilled in the art, and the present invention is not meant to be limited by the particular description given herein. Indeed, in circumstances in which a clamp


20


is not connected to the tie lock tool


10


, the tie lock tool


10


need not have any knobs


130


or hooked ends


140


.




In a first preferred embodiment shown in

FIG. 2



b


and more clearly in

FIGS. 5 and 7

, a form tie opening


280


is formed within the bracket member


60


. Preferably, the form tie opening


280


extends from the first flange


80


into the plate


70


, as shown in

FIGS. 5 and 7

. The form tie opening


280


is configured to receive the head


55


,


57


of the form tie


50


. That is, preferably a first portion


281


of form tie opening


280


within the first flange


80


is narrow, and a second portion


282


of the form tie opening


280


within the plate is sufficiently wide to receive a button head


57


therethrough.




A loop head


55


is generally no wider than the form tie


50


, so that a form tie


50


having a loop head


55


can be placed entirely through the narrow, or first portion


281


of the form tie opening


280


formed within the first flange


80


, as shown in

FIGS. 5



a


and


5




b


. However, the button head


57


is generally wider than the form tie


50


. Thus, the second portion


282


of the form tie opening


280


formed within the plate


70


of bracket member


60


is preferably more widely configured to accept the button head


57


therethrough, as shown in

FIGS. 7



a


and


7




b


. Thus, with this configuration of the opening


280


, the tie lock tool


10


can accept both the loop head


55


and the button head


57


. The first (narrow) portion


281


of the form tie opening


280


formed within the first flange


80


also serves to hold the form tie


50


in place during the rotation of the lock member


100


, as described in greater detail below.




In a second embodiment (not shown), the form tie opening


280


is a single opening within only the first flange


80


of the bracket member


60


. In this embodiment, the form tie opening


280


is preferably configured to accept the largest head


55


,


57


that is used with the tie lock tool


10


. For example, if only the loop head


55


is used with the tie lock tool


10


, the form tie opening


280


can be narrowly configured. However, when the button head


57


, or other wide head, is used with the tie lock tool


10


, the form tie opening


280


must be configured sufficiently large to accept the button head


57


therethrough (e.g., see FIG.


7


). A form tie opening


280


configured under this embodiment to receive the button head


57


is also configured to receive the loop head




It is to be expressly understood that the form tie opening


280


of the present invention can be configured to accept different shaped heads of the form tie


50


. For example, the head can be J-shaped, L-shaped, T-shaped, spherical, pyramidal, or any other or suitable shape so long as it can be securely grasped by either one or both of the claws


200


,


210


of the present invention.





FIGS. 3



a


,


3




b


, and


3




c


show the lock member


100


of the tie lock tool


10


of the present invention. A handle


110


is disposed on the lock member


100


. The handle


110


can be attached in any suitable fashion (e.g., like a ratchet, or even detachable), so long as it serves to rotate the lock member


100


about the bracket member


60


. Indeed, in another embodiment (not shown), the handle


110


can be dispensed with if the lock member


100


is rotated without the handle


110


.




In a preferred embodiment, the lock member


110


is attached at a pivot


115


with a rivet made from malleable or ductile casting so that the height of the rivet head is held to a minimum. As such, the bending moment of the pivot


115


is reduced and the lock member


100


is more resistant to loads placed on the pivot


1




15


with respect to the bracket member


60


. However, the lock member


100


can be attached to the bracket member


60


at the pivot


115


using a conventional rivet, a screw, a pin, or any other suitable connection device that permits the lock member


100


to rotate between the unlocked and locked positions.




The lock member


100


supports two radially formed claws


200


,


210


. The first claw


200


and the second claw


210


are spaced apart from one another in a radially coexisting manner so as to form a gap therebetween.




The first claw


200


has a substantially rectangular cross section, radiused sufficiently for casting. The rectangular cross section provides a solid surface for securely holding the button head


57


in place. The second claw


210


, however, is formed to grasp either the loop head


55


or the button head


57


. Therefore, the second claw


210


has a substantially tear drop-shaped cross section to allow it to readily fit through the loop head


55


of the form tie


50


, while still providing a requisite surface for supporting a button head


57


. In addition, the second claw


210


has a narrowed tip that assists in guiding the second claw


210


through the loop head


57


. However, it is to be expressly understood that the claws


200


and


210


can be, for example, oval or circular in cross section, and need not be narrowed at the tip.




The first claw


200


has an extension


205


of its end beyond the end of the second claw


210


. The extension


205


of the first claw


200


is best shown in

FIGS. 3



a


and


3




b


. The extension


205


is formed on the end of the first claw


200


and preferably extends parallel to the handle


110


. The extension


205


extends beyond the second claw


210


for a length sufficient to act as a guide when the lock member


100


is rotated from an unlocked position to a locked position, as discussed more fully below with reference to

FIGS. 4 through 7

. It is to be expressly understood that the extension


205


can extend in a direction other than parallel to the handle


110


. For example, in another embodiment (not shown), the extension


205


extends radially beyond the second claw


210


.




Operation of the tie lock tool


10


to secure the loop head


55


of the form tie


50


can be seen in

FIGS. 4 and 5

, where

FIG. 5

shows the tie lock tool


60


in reverse orientation from FIG.


4


. In a first embodiment, shown in

FIGS. 4



a


and


4




b


, the loop head


55


is inserted through the panel opening


440


in the form panel


30


. The waler


35


is positioned adjacent the panel opening


440


and then the bracket member


60


, with the lock member


100


in the unlocked position, is placed to abut the waler


35


and the form panel


30


. As the bracket member


60


is thus positioned, the loop head


55


is received in the direction of arrow


605


(shown for the button head


57


in

FIG. 7

) through the second portion


282


of the form tie opening


280


in the plate


70


of the bracket member


60


so that the form tie


50


extends in the direction of arrow


606


(shown for the button head


57


in

FIG. 7

) through the first portion


281


of the form tie opening


280


in the first flange


80


to abut the extension


205


of the first claw


200


as shown in

FIGS. 4



b


and


5




b


. In other words, the form tie


50


is pre-positioned through the panel opening


440


so that the loop head


55


extends substantially perpendicularly beyond the first side


31


of the form panel


30


. Then the bracket member


60


is positioned over the loop head


55


so that the head


55


abuts the extension


205


of the first claw


200


.




In a second embodiment, the bracket member


60


is first positioned to abut the waler


35


and the form panel


30


as described above, so that the form tie opening


280


is aligned with the panel opening


440


, as shown in

FIG. 2



a


. The lock member


100


is rotated with the handle


110


to an unlocked position, shown in

FIGS. 4



a


and


5




a


. The loop head


55


is then extended


405


through the panel opening


440


and the form tie opening


280


to abut the extension


205


of the first claw


200


as shown in

FIGS. 4



b


and


5




b


. In other words, the bracket member


60


is pre-positioned abutting the waler


35


and then the loop head


55


is inserted through the first portion


281


of the form tie opening


280


formed within the first flange


80


.




In both embodiments, the form tie


50


abuts the extension


205


of the first claw


200


after the head


55


,


57


is received through the form tie opening


280


, as described above. The lock member


100


is then rotated


420


, as illustrated in

FIGS. 4



c


and


5




c


, so that the second claw


210


extends through the loop head


55


of the form tie


50


(e.g., in the direction of arrow


425


). The extension


205


acts as a guide, positioning and holding the loop head


55


so that it is in the correct position for the second claw


210


as the lock member


100


is rotated in the direction of arrow


420


to the locked position shown in

FIG. 4



c


. Once the lock member


100


is in the locked position, as shown in

FIGS. 4



c


and


5




c


, the form tie


50


is secured to the tie lock tool


10


. This action also secures the tie lock tool


10


to the waler


35


and the form panel


30


, and secures the waler


35


to the form panel


30


.




Operation of the tie lock tool


10


to secure a form tie


50


having a button head


57


is shown in

FIGS. 6 and 7

, where

FIG. 7

shows the tie lock tool


10


in reverse orientation from FIG.


6


. The lock member


100


is rotated to an unlocked position, shown in

FIGS. 6



a


and


7




a


. However, unlike the loop head


55


which can extend through the first portion


281


of the form tie opening


280


in the first flange after the tie lock tool is positioned on the waler


35


(i.e., the second embodiment), the button head


57


must first be positioned through the form panel


30


before the bracket member


60


is positioned on the waler


35


(i.e., the first embodiment). In other words, when the button head


57


is used with the tie lock tool


10


, the button head


57


must first be extended through the form panel opening


440


so that the button head


57


extends substantially perpendicular beyond the first side


31


of the form panel


30


. The bracket member


60


is then positioned on the waler


35


so that the second portion


282


of the form tie opening


280


receives the button head


57


, as shown by arrow


606


in

FIG. 7



a


. As described above, the second portion


282


of the form tie opening


280


is configured to receive such a button head


57


in this preferred embodiment. The form tie


50


abuts the extension


205


of the first claw


200


after the button head


57


is received through the form tie opening


280


, as described above.




After the tie lock tool


10


is positioned as just described, the lock member


100


is rotated


620


,


625


as illustrated in

FIGS. 6



c


and


7




c


so that the button head


57


is positively seated between the first claw


200


and the second claw


210


. The extension


205


acts as a guide, as discussed above with respect to the loop head


55


, positioning and holding the button head


57


so that it is in the correct position to be positively seated between the claws


200


,


210


as the lock member


100


is rotated in the direction of arrow


620


to the locked position shown in

FIG. 6



c


. Once the lock member


100


is in the locked position, as shown in

FIGS. 6



c


and


7




c


, the form tie


50


is secured to the tie lock tool


10


. This action also secures the tie lock tool


10


to the waler


35


and the form panel


30


, and secures the waler


35


to the form panel


30


.




Thus, a single tie lock tool


10


of the present invention can be used to secure a form tie


50


having a loop head


55


or having a button head


57


. In addition, the extension


205


of the first claw


200


acts as a guide, automatically aligning the head


55


,


57


with the lock member


100


, so that a single worker, possibly using just one hand, can quickly operate the tie lock tool


10


of the present invention.




In a preferred embodiment, the form tie


50


having either a loop head


55


or a button head


57


extends perpendicular to the form panel


30


, or approximately at ninety degrees to the form panel


30


. However, the opposing form panel


30


, or the panel opening


440


in the opposing form panel


30


, to which the form tie


50


extends, can be offset so that the form tie


50


extends between the opposing form panels


30


at an angle other than ninety degrees.




In a preferred embodiment, the lock member


100


acts as a cam. Both of the claws


200


,


210


are shaped progressively thicker from their ends, as shown in

FIG. 3



a


, to act as a cam when the lock member


100


is rotated between the unlocked and locked position. As such, the head


55


,


57


is pulled through the form panel opening


440


and tensioned as the lock member


100


is rotated


420


,


620


from the unlocked position to the locked position. In addition, the cam action of the lock member


100


serves to secure the tie lock tool


10


against the waler


35


, and thus secure the waler


35


to the form panel


30


without the use of the attachment devices discussed above. However, the lock member


100


need not act as a cam. In an embodiment in which the lock member


100


does not act as a cam, the claws


200


and


210


still hold the head


55


,


57


of the form tie


50


in place, but do not tension the form tie


50


.




A stopper


400


is available for use with the form tie


50


. As the lock member


100


rotates


420


,


620


to the locked position, as shown in

FIGS. 4



c


and


6




c


, the stopper


400


is seated against the second side


32


of the form panel


30


(as shown in

FIG. 2



a


) and assists in tensioning the form tie


50


against the form panel


30


. Thus, the stopper


400


is useful in concrete jobs requiring large expanses of form panels


30


to securely hold the form panels


30


in position while additional form panels


30


of the concrete form system are assembled. The stopper


400


is conventional and is generally a plastic cone removably attached to the form tie


50


. However, the stopper


400


can take any suitable form, such as, for example, a block, a clip, or a bend in the form tie


50


itself, and can be made from any suitable material. Indeed, in some embodiments, the stopper


400


is not needed. For example, the stopper


400


need not be used with concrete form systems comprised of only a short expanse of form panels


30


, or where the concrete is poured as the form panels


30


are assembled and hence the poured concrete itself serves to tension the form panels


30


.




Optionally, a radius rest bar


85


(as shown in

FIGS. 2



b


,


4


, and


6


) is positioned between the plate


70


and the first flange


80


on either side of the form tie opening


280


. As concrete is poured between the form panels of the support apparatus


5


, a substantial force


450


,


650


is exerted by the form tie


50


on the claws


200


,


210


. The radius rest bars


85


provide a surface to buttress the second claw


210


, and thus offset the load on the second claw


210


. For the same reason, the first claw


200


is made thicker than the second claw


210


, so that the first claw


200


effectively bears the load


650


when the button head


57


is used.




The radius rest bars


85


can be cast as part of the bracket member


60


, or cast separately and attached to the bracket member


60


. Likewise, if the first flange


80


and plate


70


are cast separately, the radius rest bars


85


can also be cast as part of the plate


70


or as part of the first flange


80


. In addition, the radius rest bars


85


can be extended to also support the first claw


200


.




3. Details of the Clamp


20






The support apparatus


5


of the present invention also includes a clamp


20


. The clamp


20


is used to affix a strong back


150


to the concrete form system to strengthen and align the form panels


30


.

FIG. 8

shows a preferred embodiment of the clamp


20


of the present invention. The clamp


20


has a moveable clamp member


265


. An arm


220


is loosely attached to each side of the moveable clamp member


265


to fit around the strong back


150


abutting the bracket member


60


of the tie lock tool


10


. To attach the clamp


20


to the tie lock tool


10


, the arms


220


are spread outward (i.e., in the direction of arrow


810


) to fit over the hooked end


140


on each of the knobs


130


of the bracket member


60


. Once positioned over the knobs


130


, the arms


220


are pushed inward (i.e., in the direction of arrow


820


) so that connectors


225


on each of the arms


220


opposite the clamp member


265


(see

FIG. 2



b


) attach to the hooked ends


140


of the tie lock tool


10


. The arms


220


of the clamp


20


are thus removably attached to the tie lock tool


10


. The clamp member


265


is then moved until an engagement surface


800


, disposed on the clamp member


265


, tightens against the strong back


150


. This exerts a force in the direction of arrow


870


against the hooked ends


140


, while simultaneously exerting an opposing force in the direction of arrow


860


against the strong back


150


. In this manner, the clamp


20


secures the strong back


150


to the tie lock tool


10


.




In a preferred embodiment, the clamp member


265


comprises a block


230


, a rod


250


, and a handle


260


. The block


230


is preferably made from a die-cast aluminum alloy that is very strong and very workable. The block


230


has a shoulder


235


disposed on opposite sides of the block


230


. The shoulders


235


are preferably molded as part of the block


230


and support the arms


220


on the block


230


so that the arms


220


are moveable only in a plane parallel to the rod


250


.




The shape of the shoulders


235


is immaterial to the present invention. In a preferred embodiment, the shoulders


235


serve to hold the arms


220


in fixed relation to the rod


250


, while allowing restricted movement in a plane parallel to the rod so that the arms


220


can be spread to fit over the hooked ends


140


of the tie lock tool


10


. Thus, when the clamp


20


is placed about the strong back


150


, the arms


220


remain in position (i.e., they remain aligned with the knobs


130


on the tie lock tool


10


) and are readily positioned over the hooked ends


140


of the tie lock tool


10


. Therefore, the shoulders


235


can be any suitable design that will allow the arms


220


to be fitted to the block


230


while their movement is restricted as described above.




In this preferred embodiment, a rod hole


255


is threaded through the block


230


to engage the rod


250


movably therethrough. Both the rod hole


255


and the rod


250


are preferably threaded using a “rope” thread (i.e., each thread is widely spaced from the adjacent thread). The wide spacing of the “rope” thread provides a durable thread that is less likely to plug or otherwise become obstructed by splattered concrete.




The handle


260


is attached to one end of the rod


250


and rotated in the direction of arrow


640


to move the rod


250


in the direction of arrow


830


until an engagement surface


800


of the rod


250


is tightened against the strong back


150


. In a preferred embodiment, the engagement surface


800


is a pointed tip


801


formed on the end of the rod


250


. The pointed tip


801


catches on the surface of the strong back


150


as the reengagement surface


800


first touches the strong back


150


surface, and fixedly guides the rod


250


onto the strong back


150


as the rod


250


tightens against the strong back


150


. The pointed tip thus prevents the rod


250


from “walking” (e.g., sliding on the strong back


150


surface or slipping out of place) as the rod


50


is moved against the strong back


150


. Although in this preferred embodiment, the engagement surface


800


is a pointed tip, other embodiments are contemplated by the present invention, for example a threaded tip (e.g., a screw tip), a flat cap (e.g., cap


270


shown in

FIG. 2



b


), a pointed cap, a cap with a pointed tip disposed thereon, a rounded surface, or simply flat end of the surface of the rod


250


. Other embodiments will be evident to those skilled in the art, and the present invention is not meant to be limited by the description herein.




Other preferred embodiments of the clamp


20


are contemplated under the teachings of the present invention. The arms


220


can be curved (not shown). In other words, the arms


220


are attached to the block


230


, but then curve outward from the block


230


so that the arms


220


can be placed around strong backs


150


having a width greater than the width of the block


230


. In this embodiment, the clamp


20


can be used to secure strong backs


150


of different widths. It is also important to the present invention, that the clamp


20


can secure a strong back


150


of various depths, as discussed below in reference to FIG.


9


. For example, a finer thread can be used on the rod


250


and the rod hole


255


. Or the rod


250


can slide through block


230


and lock in place with a cotter pin or ratchet device. Indeed, the block


230


, the shoulder


235


, and the arm


220


assembly of the clamp


20


can be cast as a single unit (not illustrated), wherein the arms


220


are sufficiently elastic so as to fit over the hooked ends


140


of the tie lock tool


10


. The arms


220


can be directly attached (e.g., with screws, or a weld) to the block


230


. Alternatively, a single U-shaped arm can be used, thus eliminating the need for the block


230


and the shoulder


235


altogether. Similarly, the handle


260


does need not be permanently affixed to the rod


250


, and can be removable. Alternatively, the handle can act as a ratchet, gripping the rod


250


as it is moved in one direction, and releasing the rod


250


as it is moved in the opposite direction. Or the handle


260


can be entirely replaced with a slot on the end of the rod


250


, so that the slot is engageable with a screwdriver or other device suitable for turning the rod


250


. In addition, the connectors


225


can be holes formed within arms


220


as shown in

FIG. 2



b


, or can be open ended, like hooks, so that the arms


220


need not be spread apart (e.g., in the direction of arrow


810


) to fit over the knobs


130


of the tie lock tool


10


. Any suitable connector, including hinged latch members similar to those used on fence gates, could also be used, as will be evident to those skilled in the art.




Furthermore, it is to be expressly understood the clamp member


265


can be a cam assembly (not shown), wherein a cam is pivoted about an axis connecting the arms


220


to one another. As the cam is rotated about the connecting axis, it progressively tightens against the strong back


150


. The cam be turned an amount sufficient to tighten the strong back


150


against the tie lock member


10


. However, unlike the prior art device shown in

FIG. 1

, which has two positions (unlocked and closed), the cam could be infinitely adjusted to seat the clamp


20


against strong backs


150


of various depths.





FIGS. 9



a


,


9




b


, and


9




c


show cross-sectional views of the clamp


20


of the present invention securing strong backs


150


of various depths to a tie lock tool


10


. A conventional 2×4 strong back (1½ inches wide by 3½ inches deep d) is shown in

FIG. 9



a


. The clamp member


265


is tightened (e.g., a distance of W


1


) until the engagement surface


800


seats the strong back


150


securely to the tie lock tool


10


.




However, 2×4 lumber can vary in depth so that the strong back


150


is either smaller (

FIG. 9



b


) or bigger (

FIG. 9



c


) than a strong back


150


made from a conventional 2×4. Because the clamp member


265


of the clamp


20


of the present invention is adjustable, the same clamp


20


can be used to securely seat a strong back


150


of any depth d. When the strong back


150


is smaller than a conventional 2×4, the clamp member


265


is tightened a distance of W


2


, as shown in

FIG. 9



b


, and when the strong back


150


is larger than a conventional 2×4, the clamp member


265


is tightened a distance of W


3


, as shown in

FIG. 9



c.






Tolerances of 2×4 lumber can be substantial. Likewise, strong backs


150


made from other lumber sizes (e.g., 2×6) can also be used with the clamp


20


of the present invention. Therefore, the clamp


20


of the present invention is not limited to variations of standard 2×4 lumber and can be designed to fit any size strong back


150


.




A support apparatus


5


, having a tie lock tool


10


and a clamp


20


, for use with a concrete form system has been disclosed herein. Concrete form systems conventionally have a form panel


30


secured using a form tie


50


. A head


55


,


57


of the form tie


50


extends through the form panel


30


and is engaged by the tie lock tool


10


positioned against the form panel


30


and a waler


35


. The tie lock tool


10


has a lock member


100


rotatably attached to a bracket member


60


. The bracket member


60


has a form tie opening


280


configured therein to receive the head


55


,


57


of the form tie


50


. The lock member


100


has a first claw


200


and a second claw


210


spaced from one another. In addition, the first claw has an extension


205


that extends beyond the second claw


210


. Thus, when the lock member


100


is in an unlocked position, the head


55


,


57


is extended through the form tie opening


280


in bracket member


60


to abut the extension


205


. The head


55


,


57


is firmly held by the lock member


100


as the lock member


100


is rotated to a locked position. Hence, the head


55


,


57


of the form tie


50


is secured to the tie lock tool


10


, the waler


35


, and the form panel


30


to support the concrete form system. Additionally, an adjustable clamp


20


is used to secure a strong back


150


of variable depth to the tie lock tool


10


. An arm


220


is loosely attached on each side of a clamp member


265


. The clamp


20


is attached to the tie lock tool


10


with connectors


225


on each arm


220


. The clamp member


265


is then moved until an engagement surface


800


tightens against the strong back


150


, thus securing the strong back


150


of variable depth to the tie lock tool


10


to support the concrete form system.




The foregoing discussion of the invention has been presented for purposes of illustration and description. Further, the description is not intended to limit the invention to the form disclosed herein. Consequently, variation and modification commensurate with the above teachings, within the skill and knowledge of the relevant art, are within the scope of the present invention. The embodiment described herein and above is further intended to explain the best mode presently known of practicing the invention and to enable others skilled in the art to utilize the invention as such, or in other embodiments, and with the various modifications required by their particular application or uses of the invention. It is intended that the appended claims be construed to include alternate embodiments to the extent permitted by the prior art.



Claims
  • 1. A support apparatus for use with a concrete form system, said concrete form system having at least a form panel and a form tie, said form panel having a first side and a panel opening formed therein, said support apparatus comprising:a head on one end of said form tie, said head extending through said panel opening, said head extending substantially perpendicular beyond said first side of said form panel, wherein said head is selected from the group consisting of a loop head and a button head; a waler positioned on said first side of said form panel adjacent to said panel opening; a tie lock tool engaging said waler, said tie lock tool comprising: a bracket member abutting said waler and said first side of said form panel, said bracket member having a form tie opening configured to receive said head formed within said bracket member, said bracket member further comprising: a plate abutting said waler, said plate having a first end and a second end; a first flange disposed in a perpendicular orientation on said first end of said plate, said first flange abutting said first side of said form panel, wherein said form tie opening is formed at said first end of said plate, said form tie opening extending into said plate and into said first flange; and a second flange disposed on said second end of said plate extending in a direction opposite and substantially parallel to said first flange, said second flange abutting said waler; a lock member rotatably attached to said bracket member, said lock member rotatable between an unlocked position and a locked position; a first claw and a second claw spaced from each other on said lock member, said first claw having an extension beyond said second claw, said head extending through said form tie opening and abutting said extension of said first claw when said lock member is in said unlocked position, said head firmly held by said lock member when said lock member is rotated to said locked position so that said head of said form tie is secured to said tie lock tool, said waler, and said form panel to support said concrete form system, wherein said first claw has a substantially rectangular-shaped cross section and said second claw has a substantially tear drop-shaped cross section, and wherein said first claw and said second claw are shaped progressively thicker so that said lock member acts as a cam; and hooked ends disposed on opposing sides of said bracket member; a strong back, said strong back abutting said bracket member of said tie lock tool between said hooked ends; a clamp adjustable to secure said strong back to said tie lock tool, said clamp comprising: a clamp member; an arm loosely attached on each side of said clamp member, said arms moveable so that said arms fit onto said tie lock tool; connectors on each of said arms opposite said clamp member, said connectors removably attaching to said hooked ends of said tie lock tool; an engagement surface disposed on said clamp member, said clamp member moveable until said engagement surface tightens against said strong back, thereby securing said strong back to said tie lock tool to support said concrete form system, radius rest bars disposed on said bracket member of said tie lock tool; wherein said clamp member further comprises: a block having a rod hole formed therethrough; an adjustable rod engaging said rod hole, said engagement surface disposed on the end of said adjustable rod, said engagement surface being pointed for fixedly guiding said clamp member against said strong back.
  • 2. The support apparatus of claim 1, wherein said arms are moveable only within a plane parallel to said clamp member when said clamp member is in a secured position, so that said arms fit onto said tie lock tool.
  • 3. A tie lock tool for securing a form tie and a waler to a form panel, said form panel having a first side and a panel opening formed therein, a head of said form tie extending through said panel opening beyond said first side of said form panel, said tie lock tool comprising:a plate abutting said waler, said plate having a first end and a second end; a first flange disposed in a perpendicular orientation on said first end of said plate, said first flange abutting said first side of said form panel, said first end of said plate having a form tie opening formed therein and extending into said plate and into said first flange, said form tie opening configured to receive said head of said form tie, said head selected from the group consisting of a loop head and a button head; a second flange disposed on said second end of said plate extending in a direction opposite and substantially parallel to said first flange, said second flange abutting said waler; a lock member rotatably attached to said plate, said lock member rotatable between an unlocked position and a locked position, said lock member having a first claw and a second claw spaced from each other, said first claw having an extension beyond said second claw, said head extending through said form tie opening and abutting said extension of said first claw when said lock member is in said unlocked position so as to positively seat said head in said lock member, said head firmly held by said lock member when said lock member is rotated to said locked position so that said head of said form tie is secured to said tie lock tool and said tie lock tool is secured to said waler and to said form panel.
  • 4. The tie lock tool of claim 3, wherein said first claw and said second claw are shaped progressively thicker so that said lock member acts as a cam.
  • 5. The tie lock tool of claim 3, further comprising radius rest bars disposed on said first flange of said tie lock tool.
  • 6. A clamp adjustable to secure a strong back to a tie lock tool, said clamp comprising:a block having a rod hole formed therein; a rod engaging said rod hole; an arm loosely attached on each of opposing sides of said block, said arms moveable only within a plane parallel to said rod; connectors on each of said arms opposite said block; an engagement surface disposed on the end of said rod, said rod moveable through said rod hole.
  • 7. The clamp of claim 6, wherein said engagement surface is pointed.
  • 8. The clamp of claim 6, further comprising a handle for moving said rod through said block.
  • 9. A clamp adjustable to secure a strong back to a tie lock tool, said clamp comprising:a block having a rod hole formed therein; a threaded rod engaging said rod hole; two shoulders oppositely disposed on said block; an arm loosely attached on each of said two shoulders, said arms moveable only within a plane parallel to said rod; connectors on each of said arms opposite said shoulders, said connectors removably attaching to said tie lock tool; an engagement surface disposed on the end of said rod; and a handle disposed on said threaded rod opposite said engagement surface for moving said threaded rod through said rod hole until said engagement surface tightens against said strong back, wherein said engagement surface is pointed.
  • 10. A support apparatus for use with a concrete form system, said concrete form system having at least a form panel and a form tie, said form panel having a first side and a panel opening formed therein, said support apparatus comprising:a head on one end of said form tie, said head extending through said panel opening, said head extending substantially perpendicular beyond said first side of said form panel, said head selected from the group consisting of a loop head and a button head; a waler positioned on said first side of said form panel adjacent said panel opening; a tie lock tool engaging said waler, said tie lock tool comprising: a bracket member abutting said waler and said first side of said form panel, said bracket member having a form tie opening configured to receive said head formed within said bracket member; a lock member rotatably attached to said bracket member, said lock member rotatable between an unlocked position and a locked position; a first claw and a second claw spaced from each other on said lock member, said first claw having an extension beyond said second claw, said head extending through said form tie opening and abutting said extension of said first claw when said lock member is in said unlocked position, said head firmly held by said lock member when said lock member is rotated to said locked position so that said head of said form tie is secured to said tie lock tool, said waler and said form panel to support said concrete form system; and knobs disposed on said bracket member, each of said knobs having a hooked end; a strong back, said strong back abutting said bracket member of said tie lock tool between said knobs; and a clamp adjustable to secure said strong back to said tie lock tool, said clamp comprising: a block having a rod hole formed therein; an arm loosely attached on each of opposing sides of said block; connectors on each of said arms opposite said block, said connectors attaching to said hooked ends of said knobs; a rod engaging said rod hole; an engagement surface disposed on the end of said rod, said rod moveable through said rod hole until said engagement surface tightens against said strong back, thereby securing said strong back to said tie lock tool to support said concrete form system.
  • 11. The support apparatus of claim 10, wherein said arms are moveable only within a plane parallel to said rod so that said arms fit onto said tie lock tool.
  • 12. The support apparatus of claim 10, wherein said bracket member further comprises:a plate abutting said waler, said plate having a first end and a second end; a first flange disposed in a perpendicular orientation on said first end of said plate, said first flange abutting said first side of said form panel; a second flange disposed on said second end of said plate extending in a direction opposite and substantially parallel to said first flange, said second flange abutting said waler.
  • 13. The support apparatus of claim 10 wherein said form tie opening is formed at said first end of said plate, said form tie opening extending into said plate and into said first flange.
  • 14. The support apparatus of claim 10, wherein said first claw has a substantially rectangular-shaped cross section and said second claw has a substantially tear drop-shaped cross section .
  • 15. The support apparatus of claim 10, further comprising radius rest bars disposed on said bracket member of said tie lock tool.
  • 16. The support apparatus of claim 10, wherein said first claw and said second claw are shaped progressively thicker so that said lock member acts as a cam.
  • 17. The support apparatus of claim 10, wherein said engagement surface is pointed for fixedly guiding said rod against said strong back.
  • 18. A support apparatus for use with a concrete form system, said concrete form system having at least a form panel and a form tie, said form panel having a first side and a panel opening formed therein, said support apparatus comprising:a head on one end of said form tie, said head extending through said panel opening, said head extending substantially perpendicular beyond said first side of said form panel, said head selected from the group consisting of a loop head and a button head; a waler positioned on said first side of said form panel adjacent said panel opening; a tie lock tool engaging said waler, said tie lock tool comprising: a plate abutting said waler, said plate having a first end and a second end; a first flange disposed in a perpendicular orientation on said first end of said plate, said first flange abutting said first side of said form panel, said first end of said plate having a form tie opening extending into said plate and into said first flange, said form tie opening configured to receive said head; a second flange disposed on said second end of said plate extending in a direction opposite and substantially parallel to said first flange, said second flange abutting said waler; a lock member rotatably attached to said plate, said lock member rotatable between an unlocked position and a locked position; a first claw and a second claw spaced from each other on said lock member, said first claw having an extension beyond said second claw, said head extending through said form tie opening and abutting said extension of said first claw when said lock member is in said unlocked position, said head firmly held by said lock member when said lock member is rotated to said locked position so that said head of said form tie is secured to said tie lock tool, said waler and said form panel to support said concrete form system; and knobs disposed on opposing sides of said second flange, each of said knobs having a hooked end; a strong back, said strong back abutting said second flange portion of said tie lock tool between said knobs; and a clamp adjustable to secure said strong back to said tie lock tool, said clamp comprising: a block having a rod hole formed therein; two shoulders oppositely disposed on said block; an arm fitted on each of said two shoulders; connectors on each of said arms opposite said shoulders, said connectors attaching to said hooked ends of said knobs; a rod engaging said rod hole; an engagement surface disposed on the end of said rod; a handle disposed on said rod opposite said engagement surface for moving said rod through said rod hole until said engagement surface tightens against said strong back, thereby securing said strong back to said tie lock tool to support said concrete form system.
  • 19. The support apparatus of claim 18, wherein said first claw has a substantially rectangular-shaped cross section and said second claw has a substantially tear drop-shaped cross section .
  • 20. The support apparatus of claim 18, further comprising radius rest bars disposed on said first flange of said tie lock tool.
  • 21. The support apparatus of claim 18, wherein said first claw and said second claw are shaped progressively thicker so that said lock member acts as a cam.
  • 22. The support apparatus of claim 18, wherein said engagement surface is pointed for fixedly guiding said rod against said strong back.
  • 23. The support apparatus of claim 18, wherein said arms are moveable substantially within a plane parallel to said rod so that said arms fit over said hooked ends of said knobs.
  • 24. A tie lock tool for securing a form tie and a waler to a form panel, said form panel having a first side and a panel opening formed therein, a head of said form tie extending through said panel opening beyond said first side of said form panel, said tie lock tool comprising:a bracket member abutting said waler and said first side of said form panel, said bracket member having a form tie opening configured to receive said head of said form tie formed within said bracket member; a lock member rotatably attached to said bracket member, said lock member rotatable between an unlocked position and a locked position, said lock member having a first claw and a second claw spaced from each other, said first claw having an extension beyond said second claw, said head extending through said form tie opening and abutting said extension of said first claw when said lock member is in said unlocked position so as to positively seat said head in said lock member, said head firmly held by said lock member when said lock member is rotated to said locked position so that said head of said form tie is secured to said tie lock tool and said tie lock tool is secured to said waler and to said form panel.
  • 25. The tie lock tool of claim 24, wherein said bracket member further comprises:a plate abutting said waler, said plate having a first end and a second end; a first flange disposed in a perpendicular orientation on said first end of said plate, said first flange abutting said first side of said form panel; a second flange disposed on said second end of said plate extending in a direction opposite and substantially parallel to said first flange, said second flange abutting said waler.
  • 26. The tie lock tool of claim 25 wherein said form tie opening is formed at said first end of said plate, said form tie opening extending into said plate and into said first flange, said form tie opening configured to receive said head of said form tie, said head selected from the group consisting of a loop head and a button head.
  • 27. The tie lock tool of claim 24, wherein said first claw and said second claw are shaped progressively thicker so that said lock member acts as a cam.
  • 28. The tie lock tool of claim 24, further comprising radius rest bars disposed on said first flange of said tie lock tool.
  • 29. The tie lock tool of claim 24, wherein said first claw has a substantially rectangular-shaped cross section and said second claw has a substantially tear drop-shaped cross section.
US Referenced Citations (6)
Number Name Date Kind
2017553 Troiel Oct 1935
3908956 Gates Sep 1975
4158452 Gates Jun 1979
4304388 Gates Dec 1981
4899978 Gates Feb 1990
5110083 Page May 1992
Non-Patent Literature Citations (1)
Entry
Gates & Sons, Inc., “Gates Cam-Lock Forming System,” Dec. 1993, Gates & Sons, Inc., Denver, Colorado, USA.