Low-profile wall tie

Information

  • Patent Grant
  • 6279283
  • Patent Number
    6,279,283
  • Date Filed
    Wednesday, April 12, 2000
    24 years ago
  • Date Issued
    Tuesday, August 28, 2001
    23 years ago
Abstract
A veneer anchoring system discloses a low-profile wall tie for use in a wall having an inner wythe and an outer facing wythe. The wythes are in a spaced apart relationship and form a cavity therebetween. A combination of a wall anchor and a low-profile wall tie member is provided. The veneer anchoring systems hereof incorporate low-profile wall ties adapted for use with a dry-wall inner wythe and for use with a masonry block inner wythe. The masonry anchor has a truss portion with eye wire extensions welded thereto. The eye wires extend into the cavity between the wythes. Each eye wires accommodates the threading thereonto of a wire wall tie through the open end of the wall tie. The wall tie is then positioned so that the open end is utilizable as part of the facing wall tie. The masonry anchor is embedded in a bed joint of the interior wythe. The facing wythe is anchored by mounting in bed joints of the exterior wythe the open end of the low-profile wire formative wall tie. The low-profile permits the mortar of the bed joint to flow over and about the insertion end of the wall tie and secure the tie to the outer wythe. Where the inner wythe is a dry wall construct, a dry wall anchor, which is a stamped metal unit, is attached by sheetmetal screws to the metal vertical channel members of the wall.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




This invention relates to an improved wall tie for a veneer anchoring system for use in conjunction with a wall structure having an inner wythe and an outer wythe, and, more particularly, to construction techniques for embedding low profile wire formatives in the bed joints of the inner and outer wythes having an interlocking arrangement between the wall tie and an inner wythe anchor. One aspect of the invention is to provide the anchoring of an outer wythe of brick or masonry veneer to an inner wythe of masonry block or drywall construction.




2. Description of the Prior Act




In the past, the use of wire formatives have been limited by the mortar layer thicknesses which, in turn are dictated either by the new building specifications or by pre-existing conditions, e.g. matching during renovations or additions the existing mortar layer thickness. While arguments have been made for increasing the number of the fine-wire anchors per unit area of the facing layer, architects and architectural engineers have favored wire formative anchors of sturdier wire. On the other hand, contractors find that heavy-wire anchors, with greater diameters, frequently result in misalignment and look towards substituting thinner gage wire formatives. Such substitution thereby facilitating alignment of courses.




In the past, there have been investigations relating to the effects of various forces, particularly lateral forces, upon brick veneer construction having wire formative anchors embedded in the mortar joint of anchored veneer walls. The seismic aspect of these investigations were referenced in the first-named inventor's prior patent, namely U.S. Pat. Nos. 4,875,319 and 5,408,798. Besides earthquake protection, the failure of several high-rise buildings to withstand wind and other lateral forces has resulted in the incorporation of a requirement for continuous wire reinforcement in the Uniform Building Code provisions. The first-named inventor's related Seismiclip


R


and DW-10-X


R


products (manufactured by Hohmann & Barnard, Inc., Hauppauge, N.Y. 11788) have become widely accepted in the industry. The use of a wire formative anchors in masonry veneer walls has also demonstrated protectiveness against problems arising from thermal expansion and contraction and has improved the uniformity of the distribution of lateral forces in a structure. However, these investigations do not address the mortar layer thickness vs. the wire diameter of the wire formative or technical problems arising therefrom.




The following patents are believed to be relevant and are disclosed as being known to the inventor hereof:

















Patent




Inventor




Issue Date











3,377,764




Storch




04/16/1968






4,021,990




Schwalberg




05/10/1977






4,373,314




Allan




02/15/1983






4,473,984




Lopez




10/02/1984






4,869,038




Catani




09/26/1989






4,875,319




Hohmann




10/24/1989














It is noted that these devices are generally descriptive of wire-to-wire anchors and wall ties and have various cooperative functional relationships with straight wire runs embedded in the interior and/or exterior wythe. Several of the prior art items are of the pintle and eyelet/loop variety.




U.S. Pat. No. 3,377,764—D. Storch—Issued Apr. 16, 1968




Discloses a bent wire, tie-type anchor for embedment in a facing exterior wythe engaging with a loop attached to a straight wire run in a backup interior wythe.




U.S. Pat. No. 4,021,990—B. J. Schwalberg—Issued May 10, 1977




Discloses a dry wall construction system for anchoring a facing veneer to wallboard/metal stud construction with a pronged sheet-metal anchor. Like Storch '764, the wall tie is embedded in the exterior wythe and is not attached to a straight wire run.




U.S. Pat. No. 4,373,314—J. A. Allan—Issued Feb. 15, 1983




Discloses a vertical angle iron with one leg adapted for attachment to a stud; and the other having elongated slots to accommodate wall ties. Insulation is applied between projecting vertical legs of adjacent angle irons with slots being spaced away from the stud to avoid the insulation.




U.S. Pat. No. 4.473.984—Lopez—Issued Oct. 2, 1984




Discloses a curtain-wall masonry anchor system wherein a wall tie is attached to the inner wythe by a self-tapping screw to a metal stud and to the outer wythe by embedment in a corresponding bed joint. The stud is applied through a hole cut into the insulation.




U.S. Pat. No. 4,869,038—M. J. Catani—Issued Sep. 26, 1989




Discloses a veneer wall anchor system having in the interior wythe a truss-type anchor, similar to Hala et al. '226, supra, but with horizontal sheetmetal extensions. The extensions are interlocked with bent wire pintle-type wall ties that are embedded within the exterior wythe.




U.S. Pat. No. 4,879,319—R. Hohmann—Issued Oct. 24, 1989




Discloses a seismic construction system for anchoring a facing veneer to wallboard/metal stud construction with a pronged sheet-metal anchor. Wall tie is distinguished over that of Schwalberg '990 and is clipped onto a straight wire run.




None of the above provide the masonry construction system for an inner masonry wythe and an outer facing wythe with low-profile wire formative wall ties as described hereinbelow.




SUMMARY




In general terms, the invention disclosed hereby includes a veneer anchoring system incorporating a low-profile wall tie for use in the construction of a wall having an inner wythe and an outer facing wythe. The wythes are in a spaced apart relationship and form a cavity therebetween. In the first two embodiements disclosed, a unique combination of a wall anchor and a low-profile wall tie member is provided. The invention contemplates that the primary components of the system are reinforcing wire and wire formatives, such as truss reinforcement or ladder mesh reinforcements, providing wire-to-wire connections therebetween.




In third embodiment, the invention disclosed hereby includes a veneer anchoring system incorporating a low-profile wall tie for use in the construction of a wall having an inner dry-wall wythe and an outer facing wythe. The wythes are in a spaced apart relationship and form a cavity therebetween. In this embodiment, a unique combination of a wall anchor and, a low-profile wall tie member is provided. The invention contemplates that the primary components of the system are veneer anchors, as described in U.S. Pat. Nos. 4,021,990 and 4,598,518 and wire formative wall ties providing a positive interlocking connection therebetween.




In the mode of practicing the invention, wherein the inner wythe is constructed from a masonry block material, the masonry anchor has, for example, a truss portion with eye wire extensions welded thereto. The eye wires extend into the cavity between the wythes. Each eye wires accommodates the threading thereonto of a wire wall tie through the open end of the wall tie. The wall tie is then positioned so that the open end is utilizable as part of the facing wall tie. The masonry anchor is embedded in a bed joint of the interior wythe. The facing wythe is anchored by mounting in bed joints of the exterior wythe the open end of the low-profile wire formative wall tie. The low-profile permits the mortar of the bed joint to flow over and about the insertion end of the wall tie and secure the tie to the outer wythe. Because the eye wires have sealed eyelets and the open ends of the wall ties are sealed in the joints of the exterior wythes, a positive interengagement results.




In the mode of practicing the invention, wherein the inner wythe is a dry wall construct, a dry wall anchor, which is a stamped metal unit, is attached by sheetmetal screws to the metal vertical channel members of the wall. Each wall anchor accommodates in an opening therethrough the threading of a low-profile wire formative wall tie. As in the case of the masonry inner wythe, the open end of the wall tie is then positioned so that the open end is utilizable as part of the insertion end of the facing wall tie. The facing wall tie has a compressibly reduced in height and is mounted along the exterior wythe to receive the open end of wire wall tie with each leg thereof being placed adjacent one side of reinforcement wire. The low-profile of the facing wall tie is embedded in a bed joint of the exterior wythe. Because the dry wall anchor opening is a closed loop and the open ends of the wall ties are sealed in the joints of the exterior wythes, a positive interengagement results.




OBJECTS AND FEATURES OF THE INVENTION




It is an object of the present invention to provide in a wall structure having a facing wythe and a inner wythe, a veneer anchor system which employs a low-profile wire formative in the mortar joint of the facing wythe and is positively interconnected with a wall anchor attached to the inner wythe.




It is another object of the present invention to provide labor-saving devices to aid in the installation of brick and stone veneer and the securement thereof to an inner wythe.




It is yet another object of the present invention to provide a low-profile anchor system which ties to the continuous wire reinforcement of the inner wythe in a manner such that the mortar layer thickness in the facing wythe is readily maintainable.




It is a further object of the present invention to provide a low-profile anchor system comprising a limited number of component parts that are economical of manufacture resulting in a relatively low unit cost.




It is yet another object of the present invention to provide a veneer anchor system which is easy to install and is highly resistant to being pulled out of the mortar layer.




It is a feature of the present invention that the portion of the wall tie embedded in the joint of the facing wythe has a pattern impressed thereon.




It is another feature of the present invention that the wall tie is dimensioned with a sufficiently low profile so that, when inserted into the mortar layer, the mortar thereof can flow around and into the low-profile wall tie.




Other objects and features of the invention will become apparent upon review of the drawings and the detailed description.











BRIEF DESCRIPTION OF THE DRAWINGS




In the following drawings, the same parts in the various views are afforded the same reference designators.





FIG. 1

is a perspective view of a first embodiment of a low-profile, wall tie of this invention and shows a wall with an interior wythe of masonry block and an exterior wythe of brick, with selected aligned bed joints and utilizing aforesaid wall tie;





FIG. 2

is a partial perspective view of

FIG. 1

showing the wall anchor and the low-profile, wall tie;





FIG. 3

is a partial perspective view of the wall tie of

FIG. 2

showing the corrugated pattern thereof;





FIG. 4

is a perspective view of a second embodiment of a low-profile wall tie, similar to

FIG. 1

, but employing a ladder-type reinforcement in the interior wythe and a low-profile, rectangular pintle wall tie in the exterior wythe without aligned bed joints;





FIG. 5

is a partial perspective view of

FIG. 4

showing a portion of the wall anchor and the low-profile wall tie;





FIG. 6

is a partial perspective view of the wall tie of

FIG. 5

showing the cellular pattern thereof;





FIG. 7

is a perspective view of a third embodiment of a low-profile wall tie, similar to

FIG. 1

, but employing a dry wall anchor in the interior wythe and a low-profile, V-type wall tie;





FIG. 8

is a partial perspective view of the wall tie of

FIG. 7

showing the dry wall anchor and a low-profile, V-type wall tie; and,





FIG. 9

is a partial perspective view of

FIG. 8

showing the raised diamond non-slip pattern thereof.











DESCRIPTION OF THE PREFERRED EMBODIMENTS




Referring now to

FIGS. 1

to


3


, the first embodiment of a low-profile wall tie device of this invention is shown and is referred to generally by the numeral


10


. In this embodiment, a wall structure


12


is shown having an interior wythe


14


of masonry blocks


16


and an exterior wythe


18


of facing brick


20


. Between the interior wythe


14


and the exterior wythe


18


, a cavity


22


is formed. In the first embodiment, successive bed joints


24


and


26


are formed between courses of blocks


16


and the joints are substantially planar and horizontally disposed. Also, successive bed joints


28


and


30


are formed between courses of bricks


20


and the joints are substantially planar and horizontally disposed. For each structure, the bed joints


24


,


26


,


28


and


30


are specified as to the height or thickness of the mortar layer and such thickness specification is rigorously adhered to so as to provide the uniformity inherent in quality construction. Selected bed joint


24


and bed joint


28


are constructed to align, that is to be substantially coplanar, the one with the other. For purposes of discussion, the exterior surface


32


of the interior wythe


14


contains a horizontal line or x-axis


34


and an intersecting vertical line or y-axis


36


. A horizontal line or z-axis


38


also passes through the coordinate origin formed by the intersecting x- and y-axes. In the discussion which follows, it will be seen that the various anchor structures are constructed to restrict movement interfacially—wythe vs. wythe—along the z-axis and, in this embodiment, along the y-axis. The system


10


includes a masonry anchor


40


constructed for embedment in bed joint


24


and a facing anchor


42


constructed for embedment in bed joint


28


, including a low-profile, wire formative wall tie member


44


.




The masonry anchor


40


is shown in

FIG. 1

as being emplaced on a course of blocks


16


in preparation for embedment in the mortar of bed joint


24


. In the best mode of practicing the invention, a truss or reinforcement wire portion


46


is constructed of a wire formative with two parallel continuous straight wire members


48


and


50


spaced so as, upon installation, to each be centered along the outer walls of the masonry blocks


16


. An intermediate wire body or wire


52


is interposed therebetween and connects wire members


48


and


50


forming chord-like portions of the truss


46


. At intervals along the truss


46


, spaced pairs of transverse wire members


54


are attached thereto and are attached to each other by a rear leg


56


therebetween. These pairs of wire members


54


extend into the cavity


22


. As will become clear by the description which follows, the spacing therebetween is constructed to limit the x-axis movement of the construct. Each transverse wire member


54


has at the end opposite the attachment end an eye wire portion


58


formed continuous therewith. A sheetmetal loop is an alternative construction in lieu of eye wires shown in the best mode; however, the wire formative has been found to be structurally superior. Upon installation, the eye


60


of eye wire portion


58


is constructed to be within a substantially vertical plane normal to exterior surface


32


. The eye


60


is dimensioned to accept a wall tie threadedly therethrough and is thus slightly larger than the diameter of the tie. This relationship minimizes the y- and z-axis movement of the construct. For positive engagement, the eye


60


of eye wire portion


58


is sealed forming a closed loop.




The wall tie


44


is generally rectangular in shape and is dimensioned to be accommodated by a pair of eye wires


58


previously described. The wall tie


44


has a rear leg portion


62


, two parallel side leg portions


64


and


66


, and two front leg portions


68


and


70


. The front leg portions


68


and


70


are spaced apart at least by the diameter of the wire member


54


. An insertion portion


72


of wall tie


44


, upon installation, extends beyond cavity


22


into bed joint


28


, which portion includes front leg portions


68


and


70


and part of side leg portions


64


and


66


adjacent to front leg portions


68


and


70


. The longitudinal axes of leg portions


62


,


64


,


66


,


68


and


70


are substantially coplanar. The side leg portions


64


and


66


are structured to function cooperatively with the spacing of transverse wire members


54


to limit the x-axis movement of the construct.




The insertion portion


72


is considerably compressed and, while maintaining the same mass of material per linear unit as the adjacent wire formative, the vertical height


74


is reduced. The insertion end of the facing wall tie is a wire formative formed from a wire having a diameter substantially equal to the predetermined height of the mortar joint. Upon compressible reduction in height, the insertion end of the facing wall tie is mounted upon the exterior wythe positioned to receive mortar thereabout. The insertion end of the facing wall tie, usually the open end of wire wall tie, retains the mass and substantially the tensile strength as prior to deformation. The vertical height


74


of insertion portion


72


is reduced so that, upon installation, mortar of bed joint


28


flows around the insertion portion


72


. Upon compression, a pattern or corrugation


76


is impressed on insertion portion


72


and, upon the mortar of bed joint


28


flowing around the insertion portion, the mortar flows into the corrugations


76


. For enhanced holding, the corrugations


76


are, upon installation, substantially parallel to x-axis


34


. In this embodiment, the pattern


76


is shown impressed on only one side thereof; however, it is within the contemplation of this disclosure that corrugations or other patterning could be impressed on other surfaces of the insertion portion


72


. With wall tie


44


constructed as described, the wall tie is characterized by maintaining substantially all the tensile strength as prior to compression while acquiring a desired low profile.




The description which follows is of a second embodiment of the low-profile wall tie device. For ease of comprehension, where similar parts are used reference designators “100”, units higher are employed. Thus, the wall tie


144


of the second embodiment is analogous to the wall tie


44


of the first embodiment. Referring now to

FIGS. 4

to


6


, the second embodiment of a masonry construction system of this invention is shown and is referred to generally by the numeral


110


. As in the first embodiment, a wall structure


112


is shown having an interior wythe


114


of masonry blocks


116


and an exterior wythe


118


of facing brick


120


. Between the interior wythe


114


and the exterior wythe


118


, a cavity


122


is formed. Successive bed joints


124


and


126


are formed between courses of blocks


116


and the joints are substantially planar and horizontally disposed. Also, successive bed joints


128


and


130


are formed between courses of bricks


120


and the joints are substantially planar and horizontally disposed. Selected bed joint


124


and bed joint


128


are constructed to be interconnected utilizing the construct hereof; however, the joints


124


and


128


are unaligned. For purposes of discussion, the exterior surface


132


of the interior wythe


114


contains a horizontal line or x-axis


134


and an intersecting vertical line or y-axis


136


. A horizontal line or z-axis


138


also passes through the coordinate origin formed by the intersecting x- and y-axes. The system


110


includes a masonry anchor


140


constructed for embedment in bed joint


124


and, a facing anchor


142


constructed for embedment in bed joint


128


, including a low-profile wall tie member


144


.




The masonry anchor


140


is shown in

FIG. 4

as being emplaced on a course of blocks


116


in preparation for embedment in the mortar of bed joint


124


. In this embodiment, a ladder type reinforcement wire portion


146


is constructed of a wire formative with two parallel continuous straight wire members


148


and


150


spaced so as, upon installation, to each be centered along the outer walls of the masonry blocks


116


. An intermediate wire body or a plurality of wires


152


are interposed therebetween and connect wire members


148


and


150


forming rung-like portions of the ladder-type reinforcement


146


. At intervals along the ladder-type reinforcement


146


, spaced pairs of transverse wire members


154


are attached thereto and are attached to each other by a rear leg


156


therebetween. These pairs of wire members


154


extend into the cavity


122


. The spacing therebetween limits the x-axis movement of the construct. Each transverse wire member


154


has at the end opposite the attachment end an eye wire portion


158


formed continuous therewith. Upon installation, the eyes


160


of eye wire portion


158


are constructed to be within a substantially horizontal plane normal to exterior surface


132


. The eyes


160


are horizontally aligned to accept the pintles of a wall tie threaded therethrough from the unaligned bed joint. The eyes


160


are slightly larger than the diameter of the pintles, which dimensional relationships minimize the x- and z-axis movement of the construct. For ensuring engagement, the pintles of wall tie member


144


are available in a variety of lengths.




The low-profile wall tie or wire formative wall tie


144


is, when viewed from a top or bottom elevation, generally U-shaped and is, when viewed from right or left side elevation, is generally L-shaped. The low-profile wall tie


144


is dimensioned to be accommodated by a pair of eye wire portions


158


described, supra. The wall tie


144


has two rear leg portions or pintles


162


and


164


, two parallel side leg portions


166


and


168


, which are substantially at right angles and attached to the rear leg portions


162


and


164


, respectively, and a front leg portion


170


. An insertion portion


172


of wall tie


144


, upon installation extends beyond the cavity


122


into bed joint


128


, which portion includes front leg portion


170


and part of side leg portions


166


and


168


. The longitudinal axes of side leg portions


166


and


168


and the longitudinal axis of the contiguous portions of the front leg portion


170


are substantially coplanar. An insertion portion


172


of wall tie


144


, upon installation extends beyond the cavity


122


into bed joint


128


, which portion includes front leg portion


170


and part of side leg portions


166


and


168


.




The insertion portion


172


is considerably compressed and, while maintaining the same mass of material per linear unit as the adjacent wire formative, the vertical height


174


is reduced. The vertical height


174


of insertion portion


172


is reduced so that, upon installation, mortar of bed joint


128


flows around the insertion portion


172


. Upon compression, a pattern or waffle-like, cellular structure


176


is impressed on insertion portion


172


and, upon the mortar of bed joint


128


flowing around the insertion portion, the mortar flows into the cells


176


. For enhanced holding, the cells


176


are impressed on both sides of the insertion portion


172


; however, it is within the contemplation of this disclosure that cells or other patterning could be impressed on only one surface of the insertion portion


172


. With wall tie


144


constructed as described, the wall tie is characterized by maintaining substantially all the tensile strength as prior to compression while acquiring a desired low profile.




The description which follows is of a third embodiment of the masonry construction system. For ease of comprehension, where similar parts are used reference designators “200” units higher are employed. Thus, the wall tie


244


of the third embodiment is analogous to the wall tie


44


of the first embodiment.




Referring now to

FIGS. 7

to


9


, the third embodiment of the low-profile wall tie device is shown and is referred to generally by the numeral


210


. The veneer anchoring system


210


employs the pronged veneer anchor construction first described in U.S. Pat. No. 4,598,518 and marketed by Hohmann and Barnard, Inc., Hauppauge, N.Y. 11788 under the trademark “DW-10-X”. The dry wall structure


212


is shown having an interior wythe


214


with a wallboard


216


as the interior and exterior facings thereof. An exterior wythe


218


of facing brick


220


is attached to dry wall structure


212


and a cavity


222


is formed therebetween. The dry wall structure


212


is constructed to include, besides the wallboard facings


216


, vertical channels


224


with insulation layer


226


disposed between adjacent channel members


224


. The insulation layer


226


may optionally be mounted on the exterior surface of dry wall structure


212


. Selected bed joints


228


and


230


are constructed to be in cooperative functional relationship with the wall anchor described in more detail below. For purposes of discussion, the exterior surface


232


of the interior wythe


214


contains a horizontal line or x-axis


234


and an intersecting vertical line or y-axis


236


. A horizontal line or z-axis


238


also passes through the coordinate origin formed by the intersecting x- and y-axes. The system


210


includes a dry wall anchor


240


constructed for attachment to vertical channel members


224


and, a wall tie member


244


.




Reference is now directed to the construction of the wall anchor or pronged veneer anchor


240


comprising a backing plate member


246


and a projecting bar portion


248


. The projecting bar portion


248


is punched-out from the central portion of the stock plate member


246


so as to result in a centrally disposed aperture and, when viewed from the side elevation, a wall-tie-receiving slot


250


. The aperture is substantially rectangular configuration and is formed in the plate member


246


. The projecting bar portion


248


is thus disposed in substantially parallel relationship with respect to the plate member


246


; however, the upper and lower ends of the projecting bar portion


248


are slightly angled to permit the full projection of the bar portion


248


with respect to the plate member


246


. Secured to the upper and lower ends of the plate member


246


in a substantially perpendicular relationship are pronged end members


252


which are bifurcated to form prong portions or prongs


254


. It is within the present invention to have the end members


252


formed with a single prong; however, for structural purposes of the bifurcated construction is preferred. The plate member


246


is also provided with bores


256


at the upper and lower ends thereof, the purpose and function of which will be discussed in more detail hereinbelow. As is best seen in

FIG. 8

, the projecting bar portion


248


is sufficiently spaced from the plate member


246


so as to form a slot


250


therebetween which is adapted to receive the wall tie


244


therewithin. In the fabrication of the dry wall as the inner wythe of this construction system


210


, the channel members


224


are initially secured in place. In this regard, the channel members


224


may also comprise the standard framing members of a building. Sheets of exterior wallboard


216


, which may be of an exterior grade gypsum board, are positioned in abutting relationship with the forward flange


258


of the channel member


224


. While the insulating layer has herein been described as comprising a gypsum board, it is to be noted that any similarly suited rigid or flexible insulating material may be used herein with substantially equal efficacy. After the initial placement of the flexible insulation layer


226


and the wallboard


216


, the veneer anchors


240


are secured to the surface of the wallboard


216


in front of channel members


224


by forcing the prongs


254


therein until the prongs


254


abuttingly engage the front flange


258


of the channel members


224


. Thereafter, sheetmetal screws


260


are inserted into the bores


256


to fasten the anchor


240


to the flange


258


and to channel member


224


.




The wall tie


244


is substantially a truncated triangularly shaped member and is dimensioned to be accommodated within slot


250


previously described. The wall tie


244


has a rear leg portion


262


, two divergent side leg portions


264


and


266


, and two parallel front leg portions


268


and


270


. To facilitate installation, the front leg portions


268


and


270


are spaced apart at least by the thickness of the projecting bar portion


248


. The longitudinal axes of leg portions


262


,


264


,


266


,


268


and


270


are substantially coplanar. The side leg portions


264


and


266


are structured to function cooperatively with the width of the projecting bar portion


248


to limit the x- and z-axis movement of the construct. An insertion portion


272


of wall tie


244


, upon installation, extends beyond the cavity


222


into bed joint


228


, which portion includes the front leg portions


268


and


270


and part of side leg portions


264


and


266


.




The insertion portion


272


is considerably compressed and, while maintaining the same mass of material per linear unit as the adjacent wire formative, the vertical height


274


is reduced. The vertical height


274


of insertion portion


272


is reduced so that, upon installation, mortar of bed joint


228


flows around the insertion portion


272


. Upon compression, a raised diamond, non-slip pattern


276


is impressed on insertion portion


272


and, upon the mortar of bed joint


228


flowing around the insertion portion, the mortar flows into the interstices diamond pattern


176


between the raised diamonds of the pattern


276


. For enhanced holding, the raised diamond pattern is shown on both sides thereof; however, it is within the contemplation of this disclosure that other patterning could be fashioned into the surfaces of the insertion portion


272


. With wall tie


244


constructed as described, the wall tie is characterized by maintaining substantially all the tensile strength as prior to compression while acquiring a desired low profile.




Because many varying and different embodiments may be made within the scope of the inventive concept herein taught, and because many modifications may be made in the embodiments herein detailed in accordance with the descriptive requirement of the law, it is to be understood that the details herein are to be interpreted as illustrative and not in a limiting sense.



Claims
  • 1. A wall tie for a veneer anchoring system for use in the construction of a wall having an inner wythe and an outer wythe said outer wythe formed from a plurality of successive courses with a mortar joint opening of predetermined height between each two adjacent courses, said mortar joint upon construction being filled with mortar, said inner wythe and said outer wythe in spaced apart relationship the one with the other and forming a cavity therebetween, said veneer anchoring system having a wall anchor adapted for attachment to said inner wythe, said wall tie comprising:a wire formative tie having an insertion end adapted to be embedded within said mortar joint and having an attachment end adapted to be interlockingly attached to said wall anchor; said insertion end of said wire formative tie being compressibly reduced in height to a height substantially less than said predetermined height of said mortar joint, and upon insertion of said wire formative tie in said mortar joint, the remaining height thereof is adapted to be filled by said insertion end with said mortar thereabout.
  • 2. A wall tie as described in claim 1 wherein said wire said wire formative is formed from a wire having a given mass and a diameter substantially equal to said predetermined height of said mortar joint, said wire, upon being compressibly deformed, retaining the mass of material per linear unit as the adjacent wire formative.
  • 3. A wall tie as described in claim 1, wherein said insertion end of said wall tie has an upper surface and a lower surface, said upper surface upon being compressibly deformed has a pattern of recessed areas impressed thereon for receiving mortar therewithin enabling said wall tie to securely hold to the mortar joint.
  • 4. A wall tie as described in claim 1, wherein said insertion end of said wall tie has an upper surface and a lower surface said lower surface upon being compressibly deformed has a pattern of recessed areas impressed thereon for receiving mortar therewithin.
  • 5. A wall tie as described in claim 1, wherein said insertion end of said wall tie has an upper surface and a lower surface, each said lower and said upper surfaces upon being compressibly deformed has a pattern of recessed areas impressed thereon for accepting mortar therewithin enabling said wall tie to securely hold to the mortar joint.
  • 6. A wall tie as described in claim 3, wherein said pattern is a corrugation with ridges and valleys.
  • 7. A wall tie as described in claim 6, wherein said ridges of said corrugation are adapted, upon installation in said outer wythe, to be substantially parallel to the face plane thereof and further adapted by receiving mortar therewithin to increase the tie strength thereof.
  • 8. A wall tie as described in claim 3, wherein said pattern is a cellular pattern with open cells therein.
  • 9. A wall tie as described in claim 8, wherein said open cells of said cellular pattern are adapted, upon installation in said outer wythe and receiving mortar therewithin to increase the tie strength of said wall tie.
  • 10. A wall tie as described in claim 3, wherein said pattern has a plurality of raised portions with interstitial areas therebetween.
  • 11. A wall tie as described in claim 10, wherein said interstitial areas are adapted upon installation in said outer wythe and receiving mortar within the interstitial areas and increasing the tie strength of said wall tie.
  • 12. A wall tie as described in claim 4, wherein said pattern is a corrugation with ridges and valleys.
  • 13. A wall tie as described in claim 12, wherein said ridges of said corrugation are adapted, upon installation in said outer wythe, to be substantially parallel to the face plane thereof and further adapted by receiving mortar therewithin to increase the tie strength thereof.
  • 14. A wall tie as described in claim 4, wherein said pattern is a cellular pattern with open cells therein.
  • 15. A wall tie as described in claim 14, wherein said open cells of said cellular pattern are adapted, upon installation in said outer wythe and receiving mortar therewithin to increase the tie strength of said wall tie.
  • 16. A wall tie as described in claim 4, wherein said pattern has a plurality of raised portions with interstitial areas therebetween.
  • 17. A wall tie as described in claim 16, wherein said interstitial areas are adapted upon installation in said outer wythe and receiving mortar within the interstitial areas, to increase the tie strength of said wall tie.
  • 18. A wall tie as described in claim 5, wherein said pattern is a corrugation with ridges and valleys.
  • 19. A wall tie for a veneer anchoring system for use in the construction of a wall having an inner wythe and an outer wythe said outer wythe formed from a plurality of successive courses of bricks with a mortar joint between of predetermined height each two adjacent courses, said inner wythe and said outer wythe in spaced apart relationship the one with the other and forming a cavity therebetween, said veneer anchoring system having a wall anchor adapted for attachment to said inner wythe forming a wall resistant to lateral forces, said wall tie comprising:a wire formative tie having an insertion end adapted to be inserted in said mortar joint and an attachment end adapted to be interlockingly attached to said wall anchor, said insertion end being compressibly deformed to reduce the height thereof to a height below said predetermined height of said brick mortar joint and adapted to, upon installation, permit mortar to flow therearound.
  • 20. A wall tie as described in claim 19 wherein said wall tie is adapted for use with a cementitious slurry in said mortar joint and, upon installation of said wall tie into said cementitious slurry of said brick mortar joint, the slurry flows about the said insertion end securing the wall tie to said outer wythe.
  • 21. A wall tie as described in claim 20 wherein said insertion end of said wire formative tie is formed from a wire being compressibly deformed, retaining the mass and substantially the tensile strength as prior to deformation.
  • 22. A wall tie for a veneer anchoring system for use in the construction of a wall having an inner wythe and an outer wythe said outer wythe formed from a plurality of successive courses with a mortar joint opening of predetermined height between each two adjacent courses, said mortar joint upon construction being filled with mortar, said inner wythe and said outer wythe in spaced apart relationship the one with the other and forming a cavity therebetween, said veneer anchoring system having a wall anchor adapted for attachment to said inner wythe, said wall tie comprising:a wire formative tie having an insertion end adapted to be embedded within said mortar joint and having an attachment end adapted to be interlockingly attached to said wall anchor; said insertion end of said wire formative tie being compressibly reduced in height to a height substantially less than said predetermined height of said mortar joint, and upon insertion of said wire formative tie in said mortar joint, the remaining height thereof is adapted to be filled by said insertion end with said mortar thereabout and being formed from a wire having a given mass and substantially the tensile strength as prior to deformation.
US Referenced Citations (5)
Number Name Date Kind
2605867 Goodwin Aug 1952
5392581 Hatzinikolas Feb 1995
5408798 Hohmann Apr 1995
5456052 Anderson et al. Oct 1995
6209281 Rice Apr 2001