Beam clip with teeth

Abstract

A saddle connector, having an inverted channel, engages a bulb of a beam in the grid of a suspended ceiling. The channel has hardened teeth staggered along the opposing walls of the channel. The teeth are forced into the bulb of the beam, one at a time, by the full force exerted by hand operated pliers.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

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.

2. Prior Art

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.

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.

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.

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.

BRIEF SUMMARY OF THE INVENTION

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.

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.

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.

The connector 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 SEVERAL VIEWS OF THE DRAWING

FIG. 1 is a perspective view of a prior art saddle connector attached to a beam by screws.

FIGS. 2 through 5 show a first embodiment of the invention.

FIG. 2 is a perspective view of a saddle connector of the invention.

FIG. 3 is a perspective view of the saddle connector of FIG. 2 secured to the end of a beam in a grid, and hooked onto a wall molding.

FIG. 4 is a sectional view taken on the line 4-4 of FIG. 3.

FIG. 5 is a view similar to FIG. 4 showing the teeth of the saddle connector embedded in the bulb of a beam in the grid.

FIG. 6 is a sectional view taken on the line 6-6 of FIG. 3.

FIGS. 7 through 10 show a second embodiment of the invention.

FIG. 7 is a perspective view of a T-shaped saddle connector of the invention.

FIG. 8 shows the saddle connector of FIG. 7 securing a cross beam to a main beam, with the teeth pressed into both beams.

FIG. 9 is a view taken on the line 9-9 of FIG. 8, before the teeth are pressed into the beam.

FIG. 10 is a view similar to FIG. 9, after the teeth have been pressed into the beam.

FIG. 11 shows the saddle connector of FIG. 7 used to connect opposing cross beams to a main beam.

FIG. 12 is a sectional view taken on the line 12-12 in FIG. 11.

DETAILED DESCRIPTION OF THE INVENTION

Suspended ceilings, as seen, for instance, in U.S. Pat. Nos. 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.

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

In the prior art, as seen in FIG. 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.

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 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.

The Invention

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.

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.

The backpiece 47, as seen in FIG. 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 FIG. 6.

As seen particularly in FIG. 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 FIG. 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 FIG. 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.

The saddle connector 40 of the invention can take other forms. In FIGS. 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 FIGS. 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.

Cutouts 69 in channels 61, 62, and 63 permit connector to engage main beam 65 and cross beam 70 as shown particularly in FIG. 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.

In FIGS. 11 and 12, there is shown the connector 60 of FIG. 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.

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. In a saddle connector that is secured to a steel beam in the grid of a suspended ceiling, wherein the beam has a bulb extending along the top of the beam, (a) an inverted channel that straddles the bulb of the beam, and(b) teeth extending from opposing walls of the inverted channel, intended to be forced into the bulb, to form a connection;the improvement comprising (c) a connector with teeth formed of hardened metal capable of being forced , without bending, into the bulb of the beam to which it is attached, and with(d) a tooth in one wall of the channel in a staggered position from a tooth in an opposing wall of the channel, so that a space opposite a tooth in an opposing wall is clear, whereby manually operated hand pliers are capable of applying sufficient force to one tooth at a time to pierce the bulb with the tooth, and force the tooth into the bulb.

2. The improvement of claim 1, wherein the connector secures a beam in the grid to a wall molding.

3. The improvement of claim 1, wherein the connector secures a beam in the grid to another beam.

4. The improvement of claim 3 wherein the connector secures a cross beam to a main beam.

5. The connector of claim 4 wherein a connector secures opposing cross beams to a main beam.