AU2013202442A1

AU2013202442A1 - Beam clip with teeth

Info

Publication number: AU2013202442A1
Application number: AU2013202442A
Authority: AU
Inventors: Brett W. Sareyka
Original assignee: Worthington Armstrong Venture
Current assignee: Worthington Armstrong Venture
Priority date: 2012-11-27
Filing date: 2013-04-04
Publication date: 2014-06-12
Also published as: CN103835426B; CN103835426A; HK1197283A1

Abstract

BEAM CLIP WITH TEETH A saddle connector (40), having an inverted channel (42), engages a bulb (26) of a beam in the grid of a suspended ceiling. The channel has hardened teeth (41) staggered along the opposing walls of the channel. The teeth (41) are forced into the bulb of the beam, one at a time, by the full force exerted by hand operated pliers. -51 t43125 22 42 nt44 49 21 23 53- f - 1

Description

1 BEAM CLIP WITH TEETH FIELD [0001] The invention generally relates to suspended ceilings that hang from structural ceilings, and more particularly, to connectors for the metal beams that form the grids in such suspended ceilings. BACKGROUND [0002] The beams in the grids of suspended ceilings are formed from a flat, continuous strip of sheet metal that passes through successive rolls. The rolls bend the strip into a cross section having a bulb at the top, a web depending downward from the bulb, and horizontal flanges, at the bottom, on opposite sides, of the web. [0003] The beams are formed into a grid that can support panels in rectangular grid openings, or drywall sheets attached to the grid from below by self-tapping screws. [0004] The beams in the grid are attached on each side of the grid to a molding on a side wall, generally by screws, but sometimes by a connector in the form of a saddle that is secured to the molding and beams by self-tapping screws. Such a saddle connector has an inverted channel that straddles the bulb of a beam, and is set in place from above the beam. [0005] Such a saddle-type channel connector having on each side of the channel teeth that dig into the structural elements they straddle, have been used on wooden beams. On metal beams, the teeth of the connector generally bend and fail to penetrate the metal of the beam when force is applied, as by hand pliers, when the connector is being applied to the beam. Hence, such connectors have not been accepted in the suspended ceiling field where metal beams are used in the grids. OBJECT [0006] It is the object of the present invention to substantially overcome or at least ameliorate one or more of the above disadvantages or to provide a useful alternative.

2 SUMMARY OF THE INVENTION [0007] According to a first aspect of the present invention there is disclosed herein a saddle connector adapted to be secured to a steel bulb of a steel beam in a grid of a suspended ceiling, wherein the steel bulb extends along the top of the steel beam, the saddle connector comprising: an inverted channel comprising an opposing first and opposing second side wall, and a first clear surface area on the first opposing side wall and a first tooth in the second opposing side wall that is opposite the first clear surface area, wherein: (i) the first clear surface area is adapted to form a support for a first jaw of a pair of manually operated pliers to force the first tooth in the second opposing side wall into the steel bulb by a force from a second jaw of the pair of manually operated pliers, with the first tooth piercing the steel bulb, wherein when inserted the first tooth creates a second clear surface area on the second opposing side wall, (ii) a second tooth in the first opposing side wall is opposite the second clear surface area such that the first tooth and the second tooth are staggered along the opposing first and opposing second side walls, the first and second tooth are each formed of hardened metal, and (iii) the second clear surface area is adapted to form a support for the first jaw of the pair of manually operated pliers to force the second tooth in the first opposing side wall into the steel bulb by a force from the second jaw of the manually operated pliers, the second tooth piercing the steel bulb. [0008] Preferred embodiments of the present invention utilizes a saddle connector, with teeth extending from sides of the channel, that bite into the bulb of a metal beam to connect the beam to a wall molding, or to another metal beam, in a ceiling grid. The saddle connector straddles the bulb in a beam, and the teeth bite into the bulb of the beam when force is applied to the teeth, with hand pliers, to force the teeth, one at a time, into the bulb. [0009] The saddle connector is made of hardened steel, with sharp, pointed teeth stamped out of the sides of the saddle. The teeth are positioned in the connector so they can be pinched into the metal bulb of the beam with ordinary hand operated pliers, such as "tongue and groove" pliers, one at a time. One jaw of the pliers can abut against the connector on the opposite side of the channel from the tooth being inserted, without interference from any teeth not yet inserted, and pinch one opposite hardened sharp tooth on the other side of the connector channel, into the bulb of the beam.

3 [0010] In this manner, the full force being applied by the installer, with the mechanical advantage created by the pliers, can be concentrated on one tooth at a time, to overcome the substantial resistance to penetration offered by the beam. The hardened tooth in turn, does not bend, so the tooth is forced into the beam. [0011] The connector of preferred embodiments of the invention can be applied quickly and permanently to provide a firm connection. In seismic prone areas, self-tapping screws can be inserted through the clip into the beam to provide added strength. BRIEF DESCRIPTION OF THE DRAWINGS [0012] Preferred embodiments of the present invention will now be described, by way of examples only, with reference to the accompanying drawings wherein: [0013] Figure 1 is a perspective view of a prior art saddle connector attached to a beam by screws. [0014] Figures 2 through 5 show a first embodiment of the invention. [0015] Figure 2 is a perspective view of a saddle connector of the invention. [0016] Figure 3 is a perspective view of the saddle connector of Figure 2 secured to the end of a beam in a grid, and hooked onto a wall molding. [0017] Figure 4 is a sectional view taken on the line 4-4 of Figure 3. [0018] Figure 5 is a view similar to Figure 4 showing the teeth of the saddle connector embedded in the bulb of a beam in the grid. [0019] Figure 6 is a sectional view taken on the line 6-6 of Figure 3. [0020] Figures 7 through 10 show a second embodiment of the invention. [0021] Figure 7 is a perspective view of a T-shaped saddle connector an embodiment of the invention.

4 [0022] Figure 8 shows the saddle connector of Figure 7 securing a cross beam to a main beam, with the teeth pressed into both beams. [0023] Figure 9 is a view taken on the line 9-9 of Figure 8, before the teeth are pressed into the beam. [0024] Figure 10 is a view similar to Figure 9, after the teeth have been pressed into the beam. [0025] Figure 11 shows the saddle connector of Figure 7 used to connect opposing cross beams to a main beam. [0026] Figure 12 is a sectional view taken on the line 12-12 in Figure 11. DESCRIPTION OF PREFERRED EMBODIMENTS [0027] Suspended ceilings, as seen, for instance, in United States Patents 6,523,313 and 6,138,416, incorporated herein by reference, have a grid of interconnected beams. The grid supports panels on flanges of the beams, in grid openings, in panel ceilings. In drywall ceilings, sheets of wallboard are secured to the bottom of the flanges of the beams in the grid, by self tapping screws. The grid is suspended from a structural ceiling by hang wires. [0028] The present invention deals primarily with saddle connectors that secure the beams of the grid to wall molding that surrounds the grid, or to connect beams in the grid to each other. The Prior Art [0029] In the prior art, as seen in Figure 1, an angle wall molding 20 is secured to side wall 21, and wall stud 22, by screws 23. A beam 25, rollformed from a continuous web of sheet metal, has a bulb 26, a web 27 depending downward from the bulb 26, and horizontal flanges 28 extending oppositely from the web 27 at the bottom. Stitches 29 secure layers of the web 27 of the beam 25 together. [0030] The beam 25, which forms part of the grid referred to above, rests, at its end, on the horizontal ledge 31 of the wall molding 20. A prior art saddle connector 32 secures the end of beam 25 to the vertical leg 33 of wall molding 20, to keep the beam 25 in place on the molding 5 20. An inverted channel 35 straddles the bulb 26. The channel 35 flares out at one end 36 to form a downwardly extending flat portion 37 that hooks over the vertical leg 33 of wall molding 20. A self-tapping screw 38 secures the prior art saddle connector 32 to bulb 26. Embodiments of the Invention [0031] The saddle connector 40 of the invention uses hardened, staggered teeth 41, instead of screws 23, to bite into the bulb 26 of beam 25 to secure the inverted channel 42 to the bulb 26 of the beam 25. [0032] The teeth 41 are punched out of the opposing side walls 43 and 44 of the inverted channel 42 of saddle connector 40, and have a pivot leg 45, and a pointed segment 46. [0033] The backpiece 47, as seen in Figure 2, is bent downwardly from a bridge piece 48 that extends from inverted channel 42. The backpiece 47 has punched from it a lip 49 that is hooked between side wall 21 and the vertical leg 33 of the wall molding 20, as seen, for instance, in the cross sectional view in Figure 6. [0034] As seen particularly in Figure 4, the teeth 41 of the invention, are positioned initially outwardly from both opposing side walls 43 and 44 of the inverted channel 42, and are staggered relative to the tooth or teeth on the opposing wall. This permits pliers 50, shown in phantom in Figure 3, to be applied in a manner wherein one jaw 51 of pliers 50 can seat on a channel side wall 44 at location 52, while the other jaw 53 of the pliers 50 can be applied to the pivot leg 45 of the tooth 41 on the opposing channel side wall 43 at location 54 as seen in Figure 4. This permits the full leverage of the pliers 50 to be applied to one tooth 41 at a time, whereby the pointed segment 46 of a hardened tooth 41 penetrates the softer metal of the bulb 26 of the beam 25. [0035] The saddle connector 40 of the invention can take other forms. In Figures 7, 8 and 9, there is shown the connector 60 of the invention used to connect a single cross beam 70 to a main beam 65. As seen, in the form shown in Figures 7, 8, and 9, connector 60 has in-line channels 61 and 62, and perpendicularly-extending channel 63. Channels 61 and 62 extend over bulb 64 of main beam 65, having web 66, flanges 67, and stitches 68.

6 [0036] Cutouts 69 in channels 61, 62, and 63 permit connector 60 to engage main beam 65 and cross beam 70 as shown particularly in Figure 8. Teeth 71 are staggered longitudinally along channels 60, 61, and 62, so that the teeth do not oppose each other, whereby one jaw 71 of pliers 72 can seat at location 73 on the channel, while the other jaw 75 of pliers 72 can be applied to tooth 74. [0037] In Figures 11 and 12, there is shown the connector 60 of Figure 7 used to connect opposing cross beams 80 and 81 to main beam 82. Channel 63 extends over main beam 65, while channels 61 and 62 extend over cross beams 80 and 81. As described above, a tooth 74 of hardened metal is forced into the bulb 26 of a beam 25, one at a time, whereby the full force of the hand pliers 72 is used most effectively on the tooth 74. [0038] In the above manner, the teeth 41 are pierced into the bulb 26 of a beam 25 in the various embodiments disclosed above, resulting in a secure connection between and among beams in a suspended ceiling.

Claims

1. A saddle connector adapted to be secured to a steel bulb of a steel beam in a grid of a suspended ceiling, wherein the steel bulb extends along the top of the steel beam, the saddle connector comprising: an inverted channel comprising an opposing first and opposing second side wall, and a first clear surface area on the first opposing side wall and a first tooth in the second opposing side wall that is opposite the first clear surface area, wherein: (i) the first clear surface area is adapted to form a support for a first jaw of a pair of manually operated pliers to force the first tooth in the second opposing side wall into the steel bulb by a force from a second jaw of the pair of manually operated pliers, with the first tooth piercing the steel bulb, wherein when inserted the first tooth creates a second clear surface area on the second opposing side wall, (ii) a second tooth in the first opposing side wall is opposite the second clear surface area such that the first tooth and the second tooth are staggered along the opposing first and opposing second side walls, the first and second tooth are each formed of hardened metal, and (iii) the second clear surface area is adapted to form a support for the first jaw of the pair of manually operated pliers to force the second tooth in the first opposing side wall into the steel bulb by a force from the second jaw of the manually operated pliers, the second tooth piercing the steel bulb.

2. A saddle connector according to claim 1, adapted to secure the steel beam in the grid to a wall molding.

3. A saddle connector according to claim 1, adapted to secure the steel beam in the grid to another beam.

4. A saddle connector according to claim 3, adapted further to secure a cross beam to a main beam.

5. A saddle connector according to claim 3, adapted further to secure opposing cross beams to a main beam. 8

6. A saddle connector substantially as hereinbefore described with reference to the Figures 2 to 12 of the accompanying drawings. Worthington Armstrong Venture Patent Attorneys for the Applicant/Nominated Person SPRUSON & FERGUSON