Mobile utility scaffold having a platform locking and securing device

Information

  • Patent Grant
  • 6832666
  • Patent Number
    6,832,666
  • Date Filed
    Friday, November 30, 2001
    23 years ago
  • Date Issued
    Tuesday, December 21, 2004
    20 years ago
Abstract
Scaffold having a locking and securing device for securing a first support to a second support is disclosed where the locking and securing device is movable between a secured position and an unsecured position by using a force at a substantially center point of the securing means.
Description




FIELD OF THE INVENTION




The present invention relates to a mobile utility scaffold having a locking and securing device for attaching a scaffolding platform side rail to a supporting structure.




BACKGROUND OF THE INVENTION




Scaffolds are used in many situations to provide an elevated platform for workers. Most scaffolding is made of tubular metal which is welded together to have vertical legs with horizontal rungs extending between the legs to form a ladder-like vertically extending supporting structure. Horizontally positioned platforms are held on side rails which are mounted to the vertically extending support structures.




Since scaffolding is often moved between work stations or is added to as work is completed, it is desired to design and construct scaffolding that is easy to assemble and disassemble and which also is very secure. It is also desired to have scaffolding which is economical to manufacture and is easily collapsed, stored and moved from one work location to another. In the industry, in order to make the scaffolding easy to assemble and adjust, the vertical and horizontal structures are made with tolerances such that the horizontal and vertical structures can be easily placed adjacent another. Since the vertical and horizontal supporting structures are manufactured with dimensions that allow one structure to be moved relative to the other structure, sometimes the resulting scaffold structure can be unreliable, shaky or difficult to secure. One problem is that these assembled scaffolding structures need to have secure locking mechanisms so that the horizontal structures and the vertical structures do not move relative to each other during use.




One type of latch mechanism M currently used by the owners of the instant invention is shown in FIG.


6


. An L-shaped pin P is held by a bracket welded to a horizontal support H. The L-shaped pin P extends through a spring S and the pin extends through an opening O in a vertical support V. The L-shaped pin P has a roll pin R adjacent the end of the pin P. To operate, a force is placed on the depending arm of the L-shaped pin P to either push or pull the pin P into or out of the opening O in the vertical support V.




Another type of prior art latch mechanism is shown in

FIG. 7. A

G-shaped pin G is held by a bracket B′ welded to a horizontal support H′. The G-shaped pin G extends through a spring S′ and extends through an opening O′ in a vertical support V. The G-shaped pin G has a roll pin R′ which extends in a vertical direction through one end of the pin G. To operate, a force is placed on the depending curved arm of the G-shaped pin G to either push or pull the pin G into or out of the opening O′ in the vertical support V′.




Many other types of latch mechanisms have been used to secure the horizontal platform to the vertical supporting structure. Examples of several of these efforts are shown in U.S. Pat. Nos. 409,167; 4,793,438; 5,028,164; 5,390,761; 5,931,260; 6,202,788 B1 and 6,273,831 B1.




One problem with the current latch mechanisms for scaffolding is that the latch mechanism could become loose or disengaged during use. Often a worker, while standing on the platform, moves about the platform which causes shifting and constant realignment of the horizontal work surface with respect to the vertical supporting structures. This lateral movement of the horizontal work surface could tend to cause the latch mechanisms to become loose or displaced relative to their initial position.




Latch mechanisms that use springs to hold the latch mechanism in position often present further problems. The use of springs has made the latch mechanism more difficult to operate. Typically, a great amount of force is needed in order to overcome the bias of the spring in order to disengage the latch mechanism. Often, the horizontal and/or vertical structure must be secured or stabilized with one hand while the other hand of the worker disengages the latch mechanism. In such situations, the scaffolding must be adjusted at least four individual spots and often times the one side of the horizontal structures are positioned at an acute angle with respect to the vertical structure during this adjustment period, causing undesirable stresses on the still-locked opposing latch mechanism.




Still other problems with the currently used latches occur since the scaffoldings are often used in construction and other work environments where material such as work equipment, debris or supplies are constantly being moved onto and off of the scaffolding. It is important to have a latch mechanism which cannot be accidentally disengaged and further which does not interfere with the movement of the worker, worker's tools or supplies, or any debris or materials being moved by the worker.




It is therefore an object of the present invention to provide a locking and securing mechanism that is easily secured and, further, is held in a secured locking position.




It is a further object of the present invention to provide a locking and securing mechanism which positively indicates that the mechanism is in a properly secured and locked position.




It is a further object of the present invention to provide a locking and securing mechanism which is inexpensive to manufacture.




It is yet another object of the present invention to provide a locking and securing mechanism which is strong and resistant to breakage or shearing.




It is yet another object of the present invention to provide a locking and securing mechanism which is easy to use and operate with one hand, such that two opposing locking and securing mechanisms can be simultaneously operated by one worker.




It is another object of the present invention to provide a scaffolding which is easy to be assembled and disassembled while also providing a strong and secure work surface for a worker.




It is another object of the present invention to provide a scaffolding in which a horizontal work platform can be quickly moved to new positions relative to vertical support structures.




Still another object of the present invention is to provide a locking and securing mechanism for a scaffolding which securely connects a horizontal work platform to vertical supporting structures of the scaffolding.




It is still a further object of the present invention to provide a locking and securing mechanism that can be used with currently available horizontal support structures and vertical support structures of a scaffolding system.




Yet another object of the present invention is to provide a scaffold assembly in which the platform securely held in horizontal position without moving out of place or becoming disengaged during use of the platform.




Additional objects, features and advantages of the present invention will become apparent to those skilled in the art upon consideration of the following detailed description of a preferred embodiment as described herein.




SUMMARY OF THE INVENTION




A device for locking and securing a first support to a second support is described. The locking and securing device includes a means for securing the first support to the second support. The securing means is moveably attached to the first support such that the securing means is moveable between a secured position and an unsecured position with respect to the second support. A force is applied at a substantially a center point of the securing means in order to move the securing means. The securing means has a handle positioned at a substantially center point of a securing pin for receiving the applied force.




The locking and securing device further includes a means for locking the first support to the second support. In one embodiment, the locking means is integrally formed with the securing means. During operation of the locking and securing device, the securing means is rotatably moveable about a longitudinally axis extending through the securing means. The securing means is also longitudinally moveable along the longitudinal axis such that the securing means is moved between the secured and unsecured positions and the locking means is moved between the locked position and the unlocked position.




In one aspect, the locking and securing device comprises an engagement member and a securing mechanism. The securing mechanism includes a longitudinally extending securing pin and a handle positioned in a substantially centered relationship with respect to the securing pin. The securing mechanism further includes a locking member positioned on the handle in a spaced apart relationship to the securing pin.




The securing pin extends through an opening in the engagement member such that the locking member is engageable with the engagement member when the locking member is in a locked position.




In one embodiment, the securing pin defines a radially extending opening at a midpoint of the securing pin for receiving a rivet pin. A first biasing means is axially positioned on the securing pin between the rivet pin and a first end of the securing pin. A second biasing means is axially positioned on the securing pin between the rivet pin and a second end of the securing pin.




In another embodiment, the scaffolding system comprises at least one horizontal support and at least one vertical support and a locking and securing device lock for securing and locking the horizontal support to the vertical support.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view of a scaffolding incorporating a locking and securing device for securing a horizontally positioned side rail to a vertically extending support structure.





FIG. 2

is a perspective view, partially in phantom, of a locking and securing device incorporated into a scaffolding assembly where the locking and securing device is in an unengaged and unlock position.





FIG. 3

is a perspective view, partially in phantom and partially in cross-section, of a locking and securing device incorporated into a scaffolding assembly where the locking and securing device is in an engaged, but unlocked, position.





FIG. 4

is a perspective view, partially in phantom and partially in cross-section, of a locking and securing device incorporated into a scaffolding assembly where the locking and securing device is in an engaged and is being moved into a locking position.





FIG. 5

is a perspective view, partially in phantom and partially in cross-section, of a locking and securing device incorporated into a scaffolding assembly where the locking and securing device is in an engaged and locked position.





FIG. 6

is a side elevational view, partially in phantom, of a prior art latch mechanism.





FIG. 7

is a side elevational view, partially in phantom, of another prior art latch mechanism.











DESCRIPTION OF THE PREFERRED EMBODIMENT




Referring to

FIG. 1

, a locking and securing device


10


is shown as a component of a scaffold


12


operatively mounted on individual wheels


13


. The scaffold system


12


includes a horizontal side rail


14


structure operatively connected to a vertical supporting structure


16


. In the embodiment shown, the vertical supporting structure


16


comprises a first, or front, vertical support member or leg


18


, operatively connected to a second, or rear, vertical support member or leg


20


and having positioned therebetween a plurality of horizontally extending rungs or horizontal supports


22


. It is to be understood that the scaffolding typically comprises an opposing vertical support structure


26


which is similar to the first vertical support structure


16


, and has a first leg


28


, a second leg


30


and rungs


32


positioned horizontally therebetween.




The scaffold


12


further comprises a second horizontal side rail structure


34


which is in opposed and parallel relationship to the first side rail structure


14


. A work platform


36


is horizontally positioned between, and is held in position by, the first side rail


14


and the second side rail


34


.




The first side rail


14


has a first end


40


which terminates at a guard rail socket


44


. It is to be understood that the guard rail socket


44


can have any suitable cross-sectional shape, including but not limited to a generally round, square or rectangular shape and is shaped for receiving a guard rail (not shown). Attached to the guard rail socket


44


is a vertically extending channel member


60


. The channel


60


is operatively connected to the guard rail socket


40


in a suitable manner. Alternatively, the channel


60


and guard socket can be made as a uniform piece. The channel


60


has a first side


62


and a second, opposing side


64


connected by a base or third side


66


, as best seen in FIG.


2


.




It is to be understood that, in the embodiment shown, the side rail


14


and the opposing side rail


34


each has ends which are similar to the first end


40


, and that for ease of explanation, only one end


40


of the side rail


14


and the locking and securing device


10


operatively connected thereto, will be described in detail.




It can be seen in

FIGS. 1 and 3

that when the side rail


14


is positioned adjacent the leg


18


the three sides


62


,


64


and


66


of the channel


60


are positioned around the vertical supporting leg


18


. In the embodiment shown, the dimensions of the channel


60


and the vertical supporting leg


18


allow the channel


60


to be easily positioned around the leg


18


such that the channel


60


can be easily moved up and down the leg


18


in order to position the working platform


34


at a desired height.




As shown in

FIG. 1

, the vertical support members


18


,


20


,


28


and


30


define a plurality of vertically spaced apart apertures or openings


70


such that the side rail


14


can be positioned at different heights on the support members


18


,


20


,


28


and


30


, as will be described in detail below. That is, the front support members


18


and


28


and the rear support members


20


and


30


have a plurality of spaced apart apertures


70


such that opposing apertures are positioned in the same horizontal plane. The side rails


14


and


34


are moved and engaged within the apertures


70


on the opposing front and rear supporting vertical members, respectively.




In the embodiment, shown the side rail


14


and the side rail


34


each has substantially the same structure such that a guard rail can be either used on a front or rear of the scaffold. In the embodiment shown, a gusset


72


is positioned in a spaced apart relationship to the end


40


of the side rail


14


. The gusset


72


has a first end


74


which is attached to the side rail


14


and a second end


76


which is attached to the channel


60


at a predetermined distance away from the guard rail socket


44


and adjacent a lower end


65


of the channel


60


.




Referring now to

FIGS. 2-5

, the locking and securing device


10


is described in detail in connection with a scaffold. It should be understood, however, that the locking and securing device is useful in other applications and that such other applications are within the contemplated scope of the present invention.




The locking and securing device


10


includes a securing means or mechanism


80


. The securing mechanism


80


includes a longitudinally extending securing pin


82


, which, in this embodiment, is integrally formed with a handle


84


. The handle


84


has a length L. The pin


82


of the securing mechanism


80


extends in a direction away from the handle


84


in such a manner that the pin


82


is in a spaced apart relationship to the handle and is positioned substantially centered at the middle of the handle


84


.




The handle


84


has a first end


85


which extends between the handle


84


and the pin


82


. The first end


85


extends away from the handle


84


at an angle. In the embodiment shown, the first end


85


extends at an angle from the handle


84


and terminates at the pin


82


. The first end


85


generally has a depending section


83


such that the first end


85


and the depending section


83


generally define an angle. The depending section


83


terminates at the pin


82


. It should be understood that it is within the contemplated scope of the present invention that the handle


84


, the first end


85


, and the depending section


83


each has a shape and dimension that readily allow a worker to freely grasp the handle


84


and that such readily shape provides sufficient room and clearance for the worker's fingers and knuckles. As such, while the embodiment in the figure shows the depending section


83


, first end


85


, handle


84


and locking member


88


as defining a generally rectangular shape, other specific embodiments having shapes of the handle which allow for ease of grasping the handle


84


are also within the contemplated scope of the present invention. In the embodiment shown, the handle


84


has a length L while the depending section


83


of the first end


85


has a length ½L such that the pin


82


is positioned in a spaced apart relationship at substantially the center of the handle


84


.




The securing mechanism


80


further includes a locking means or member


88


, which in this embodiment, is integrally formed the handle


84


. The locking member


88


extends from a second end


86


of the handle


84


in a direction away from the handle


84


. The second or opposed end


86


is in a spaced apart relationship from the first end


85


of the handle


84


. In the embodiment shown, the locking member


88


and the handle


84


are in the same plane and the locking member


88


extends from the handle


84


at an angle. One embodiment, as shown in the figures shows the locking member


88


extending from the handle


84


at approximately a right angle.




The locking member


88


has an extending section


81


and an engaging means or section


87


. The extending section


81


is connected to the second end


86


of the handle


84


while the engaging section


87


is a spaced apart relationship to the second end


86


of the handle


84


. The engaging section


87


extends at an angle from the locking member


88


. In the embodiment shown, the engaging section


87


defines a distal end


89


which extends generally at an angle in a direction back toward the handle


84


. In the embodiment shown, the distal end


89


has a generally hocked, or C-shape. It is within the contemplated scope of the present invention that other embodiments can have the engaging section


87


define a different shaped distal end


89


, such as an acute angled shape or square or rectangular shape.




If the securing mechanism


80


were projected onto a three dimensional graph, the handle


84


would be in a plane extending through a line defined by the Y axis while the pin


82


would be in a plane extending through a line defined by the X axis. The pin


82


and the handle


84


are in the same plane (as defined by the X and Y axes). The pin


82


of the securing mechanism


80


is also in a spaced apart and parallel relationship with the extending section


81


of the locking member


88


. That is, the extending section


81


is also in a plane defined by the X axis. The engaging section


87


of the locking member


88


in a plane extending through a line defined by the Z axis away from the X axis (i.e., the Z plane is perpendicular to the X and Y axes). The distal end


89


extends from the engaging section back in a direction toward the handle


84


such that the distal end


89


is in a second plane extending through a line defined by a second Y axis.




The pin


82


defines a longitudinally extending portion


94


having a first end


90


which is in opposed relationship to a second end


92


. The second end


92


is adjacent the depending end


83


of the first end


85


of the handle


84


. The pin


82


defines an opening


96


which receives a rivet or roll pin


98


. In a the embodiment shown, the opening


96


is spaced at a midpoint located approximately midway between the first end


90


and the second end


92


of the pin


82


. The opening


96


extends through the pin


82


in a substantially Z direction when the securing mechanism


80


is in an open and unsecured position, as shown in

FIG. 2

, and when the securing mechanism is in the locked, and locked and secured position, as shown in

FIGS. 4 and 5

, respectively.




The locking and securing device


10


further includes a first biasing member, such as, for example a spring,


100


which is axially positioned between the roll pin


98


and the first end


90


of the pin


82


along the axis defined by the pin


82


. The locking and securing device


10


further includes a second biasing member or, such as, for example a spring,


104


which is axially positioned on the pin


82


in an opposed relationship to the first biasing member


100


and is positioned on an opposite side of the roll pin


98


and adjacent the second end


92


of the first pin


82


.




In the embodiment shown, the locking and securing device


10


is shown being operatively connected to and positioned on the scaffold


12


. In various embodiments, the locking and securing device


10


further includes a guide or engagement member


110


, as described in detail below, which can be operatively connected to or integrally formed with the scaffold


12


. In other, diverse applications where the locking and securing device


10


is to be used, similar type engagement members can be connected to or are formed with a part of that particular application. This can best be understood by referring to the figures herein which show such engagement member


110


on the scaffold


12


.





FIG. 2

shows the locking and securing device


10


in an open and unsecured position. The securing mechanism


80


is held or suspended from the side rail


14


by the engagement member


110


. In the embodiment shown, the engagement member


110


has a substantially L-shape; however, other shapes are also within the contemplated scope of the invention. The pin


82


of the securing mechanism


80


extends through an opening


112


in a first arm


114


of the engagement member


110


. The engagement member


110


has a second arm


116


which extends at an angle from the first arm


114


in a direction toward the first end


90


of the pin


82


. The pin


82


axially extends through the opening


112


of the first arm


114


at substantially a right angle. In the open and unlocked position shown in

FIG. 2

, the second biasing member


104


is under compression.




Referring now to

FIG. 3

, the locking and securing device


10


is shown in a secured position where the side rail


14


is positioned against the vertical support


18


. The guard rail socket


40


defines opposing openings


120


and


122


which are in an axial relationship for receiving the pin


82


. A further axially positioned opening


124


extends through the side leg


64


of the channel


60


for receiving the first end


90


of the pin


82


. The pin


82


is at a right angle with respect to the guard rail support


44


and the channel


60


. As shown in

FIG. 3

, the securing mechanism


80


is moved in a direction of the arrow A by applying a force, or pushing, on the handle


84


. The securing mechanism


80


is moved in an axial direction along the X axis such that the second biasing member


104


is no longer under compression, but the first biasing member


100


is now under compression. The first end


90


of the pin


82


passes through the openings


120


and


122


of the guard rail socket


40


and through the opening


124


in th side leg


64


of the channel


60


. The first biasing member


100


is compressed between a first side


43


of the guard rail socket


40


and the pin


98


.




The handle


84


is in an opposed and centered position with respect to the pin


82


. That is, the handle


84


is positioned in a spaced apart relationship substantially at the center of the pin


82


. The centered position of the handle


84


with respect to the pin


82


reduces the pressure on the worker's fingers or hand by reducing or eliminating the torque force. The resulting friction needed to compress the first biasing member


100


and to advance the securing mechanism


80


in a direction toward the vertical support member


18


is greatly reduced.





FIG. 4

shows the securing mechanism


80


in a rotated position about the X axis. The securing mechanism


80


is rotated in the direction of arrow B by grasping the handle


84


. In operation, the securing mechanism


80


is rotated about the X axis of the pin


82


such that the locking member


88


is rotated at least about 160° to about 180° about the X axis. The locking member


88


is brought into an adjacent relationship with the engagement member


110


. It is to be understood that the locking member


88


has a sufficient length to allow the locking member


88


to freely rotate in an upward direction (while the first biasing member


100


is in a compressed state) such that the distal end


89


of the locking member


88


extends beyond the second arm


116


of the engagement member


110


. The locking member


88


is brought into engaging contact with the engagement member


110


when the force on the securing mechanism


80


is released, as shown in FIG.


5


.





FIG. 5

shows the locking and securing device


10


in a locked and secured position. The securing mechanism


80


is allowed to move in the axial direction of arrow C along the X axis. By releasing the compressive tensioning force on the handle


84


, the first biasing member


100


acts to move the securing mechanism


80


in a direction toward the engagement member


110


. The hook or distal end


89


engages the second arm


116


of the engagement member


110


. The second biasing member


104


provides tension on the securing mechanism


80


to keep the distal end


89


of the locking member


88


secured against the second arm


116


of the engagement member


110


.




As can best be seen in

FIGS. 4 and 5

, the rivet or roll pin


98


is in a spaced apart relationship from the first end


90


of the pin


82


. In the embodiment shown, the pin


98


is a predetermined mid point distance away from the load being placed on the pin


82


by the weight of the side rail


14


, vertical support


18


, and work platform


36


. The distance between the roll pin


98


and the load (which is supplied by the platform at the point of contact of the aperture


70


in the vertical support member


18


) results in decreased load stresses on the pin


82


. That is, there is less bending moment when the pin


98


is in a spaced apart relationship from the load and, consequently, there is less likely to be failure of the pin


82


or securing mechanism


80


.




In the embodiment shown, the securing mechanism


80


is made as a single piece. The securing mechanism


80


is fully compatible with many types of scaffolding assemblies currently in use. Further, the securing mechanism


80


provides additional safety by having the hook or distal end


89


engage the engagement member


110


to ensure that the locking and securing device


10


is not accidentally unsecured.




In operation, the locking and securing device


10


is opened by first moving the handle


84


in a direction toward the engagement member


110


thereby compressing the second biasing member


104


. The handle


84


is rotated about the X axis in a direction away from the engagement member


110


such that the distal or hook end


89


of the locking member


88


is rotated in a direction away from the engagement member


110


, allowing the hook end


89


to clear or pass beyond the second arm


116


of the engagement member


110


. Referring now again to

FIG. 2

, the handle


84


is moved away from the engagement member


110


in a direction shown by arrow D. As the handle


84


is moved toward the gusset


72


, the second biasing member


104


is compressed between the pin


98


and the first arm


112


of the engagement member


110


. The movement of the handle


84


in the direction of arrow D allows the first end


90


of the pin


82


to be removed from the vertical support member


18


such that the side rail


14


is unsecured from the vertical support member


18


. The pin


82


travels in a direction away from the channel


60


such that the first end


90


of the securing mechanism


80


is withdrawn from the opening


122


in the leg


62


and from the opening


70


in the vertical support member


18


.




It is to be understood that the biasing members


100


and


104


can be any type of suitable biasing or spring mechanism including, for example, a wave washer under tension or one spring having opposing ends positioned on either side of the roll pin


18


. The biasing member acts to allow compression and tension to be put on the securing mechanism


80


while the securing mechanism


80


is being moved to a closed position and when the securing mechanism in the closed and locked position.




The locking and securing device


10


provides the worker with an easy to operate locking and securing mechanism. In embodiments where the locking and securing device


10


is used to secure a scaffold, the gusset


72


is positioned at a determined distance away from the device


10


such that the worker can wrap his hand around the gusset


72


(for example, having the thumb on one side of the gusset and the palm and fingers on an opposing side of the gusset). The position of the gusset


72


allows the worker's fingers to be easily secured or wrapped around the handle


84


of the securing mechanism


80


. The gusset


72


provides leverage and ease of motion for initially securing the side rail channel


14


onto the vertical support. It is to be understood that, while the lengths of the side rail


14


can be of any desired distance or length, the length of the side rail


14


, in many commercial embodiments, is such that the worker can simultaneously operate opposing securing mechanisms


80


on each end of the side rail. Once the side rail


14


is initially secured in the corresponding apertures


70


in each vertical support member


18


, the worker then individually locks the securing mechanism


80


by pivoting the pin


82


about the X axis allowing the distal end


89


of the locking member


88


to be secured adjacent the engagement member


110


.




While the securing mechanism


80


is shown as having a generally rectangular shaped handle


84


and a C-shaped distal end


89


which extends therefrom at a right angle, it is to be understood that other shapes can be used, such, as square, rectangular or circular, to form the handle


84


and locking member


88


and that such are within the contemplated scope of the present invention.




The locking and securing device of the present invention provides a pin and locking assembly in a single unit which simplifies construction and reduce the costs of the locking and securing device. The locking and securing device is incorporated into a scaffold, requires fewer welding points in order to produce than in many currently used latch mechanism.




It is to be understood that it is within the contemplated scope of the present invention that the locking and securing device can be used for purposes other than securing side rails to vertical supports of a scaffold. The positive securing and locking components of the locking and securing device can be used in other applications where it is desired to both secure and lock a first member in an opposed relationship to a second member.




Although the invention has been described in detail with reference to a certain preferred embodiment, variations and modifications exist within the scope and spirit of the invention as described and defined in the following claims.



Claims
  • 1. A scaffold system comprising at least one first support and at least one second support and at least one locking and securing device for removably securing and locking the first support to the second support, the locking and securing device having a means for securing the first support to the second support, the securing means being movably attached to the first support and being movable between a secured position and an unsecured position with respect to the second support by using a force at a substantially coaxial center point of the securing means; and a means for locking the securing means to the first support when the securing means is in the secured position in the second support, the locking means being integrally formed with a handle;the securing means and the locking means being rotatably moveable about a longitudinal axis extending through the securing means, the locking means being longitudinally moveable along the longitudinal axis thereby allowing the securing means to be moveable between the secured position and the unsecured position and thereby allowing the locking means to be moveable between a locked position and an unlocked position; wherein the second support includes at least one opening for receiving the securing means when the securing means is in the secured position; wherein the first support includes a channel member for receiving a portion of the second support when the first support is secured to the second support; wherein the channel member defines at least one opening for receiving a portion of the securing means; further including at least one guide rail socket for receiving one end of a guide rail, the guide rail socket being adjacent and substantially parallel to the channel member; and wherein the guide rail socket defines first and second openings that are in opposing sides of the guide rail socket for receiving a portion of the securing means.
  • 2. The scaffold system of claim 1, wherein the securing means includes a securing pin and a handle positioned in a spaced apart relationship to and at substantially the center point of the securing pin.
  • 3. The scaffold system of claim 2, wherein the securing pin is positioned at an angle with respect to the first support.
  • 4. The scaffold system of claim 2, wherein the handle is integrally formed with the locking means.
  • 5. The scaffold system of claim 2, wherein the locking means includes an engaging means for engagement with the first support when the locking means is in the locked position.
  • 6. The scaffold system of claim 5, wherein the first support is operatively connected to an engagement means for engagement with the engaging means of the locking means.
  • 7. The scaffold system of claim 6, wherein the securing means is positioned at an angle with respect to the engagement means and extends through an opening in the engagement means.
  • 8. The scaffold system of claim 1, wherein the securing means further includes at least one biasing means for holding the securing means in the secured position.
  • 9. The scaffold system of claim 8, wherein the securing means further includes a second biasing means for holding the locking means in the locked position.
  • 10. The scaffold system of claim 9, wherein the first biasing means and the second biasing means are coaxially positioned on the securing means.
  • 11. The scaffold system of claim 10, wherein the first and second biasing means are spaced apart from one another by a rivet pin extending radially through the securing means.
  • 12. The scaffold system of claim 3, wherein the rivet pin is positioned in the securing pin at substantially a midpoint along a longitudinal length of the securing means.
  • 13. The scaffold system of claim 2, wherein the handle and the securing pin are at an angle with respect to each other and are in the same plane with respect to each other.
  • 14. The scaffold system of claim 13, wherein the locking means includes an engaging means which is in a spaced apart relationship to the handle and is positioned at an angle to the handle, the engaging means and the handle each defining planes that are perpendicular to each other.
  • 15. The scaffold system of claim 14, wherein the second support defines an engagement member for engagement with the locking means when the locking means is in the locked position.
  • 16. The scaffold system of claim 15, wherein the engagement member is operatively connected to the first support.
  • 17. The scaffold system of claim 1, wherein the securing means has no threaded portion.
  • 18. The scaffold system of claim 1, wherein the locking means has no threaded portion.
  • 19. The scaffold system of claim 1, wherein the securing and the locking means are secured by being rotated about one half turn.
  • 20. The scaffold system of claim 1, wherein the securing means and the locking means are secured by being rotated about 160° to about 180°.
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