US20150033657A1 - Accessible stabilizer bar - Google Patents
Accessible stabilizer bar Download PDFInfo
- Publication number
- US20150033657A1 US20150033657A1 US13/953,928 US201313953928A US2015033657A1 US 20150033657 A1 US20150033657 A1 US 20150033657A1 US 201313953928 A US201313953928 A US 201313953928A US 2015033657 A1 US2015033657 A1 US 2015033657A1
- Authority
- US
- United States
- Prior art keywords
- stabilizer bar
- panel
- grid
- tabs
- set forth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/22—Connection of slabs, panels, sheets or the like to the supporting construction
- E04B9/24—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto
- E04B9/241—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto with the slabs, panels, sheets or the like positioned on the upperside of the horizontal flanges of the supporting construction
- E04B9/242—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto with the slabs, panels, sheets or the like positioned on the upperside of the horizontal flanges of the supporting construction with separate retaining elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/065—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section
- E04B9/067—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section with inverted T-shaped cross-section
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/12—Connections between non-parallel members of the supporting construction
- E04B9/127—Connections between non-parallel members of the supporting construction one member being discontinuous and abutting against the other member
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/12—Connections between non-parallel members of the supporting construction
- E04B9/16—Connections between non-parallel members of the supporting construction the members lying in different planes
Abstract
Description
- The invention relates to suspended ceiling construction and, in particular, to a device for stabilizing relatively long grid openings.
- Suspended ceiling grid design has evolved to arrangements where the grid modules or openings are commonly 2 foot by 4 foot or 2 foot by 2 foot (or metric equivalents). Accordingly, the grid members are designed with a geometry and material content to withstand the forces present in these now common grid module sizes.
- In recent times, there has developed a demand for larger panels than these common sizes. This presents a problem because the grid elements, typically tees, can bend and/or twist under the panel weight or other imposed loading. Deflection of a grid element for a given force is exponential with its unrestrained length and twisting is proportional to its length. It follows that a grid element having a standard construction but with an unusually long unrestrained length, can deflect and/or twist beyond normal limits. When a grid element deflects from its intended position, the associated edge of a panel can slip off the element. This results in an unsightly appearance or, worse, the panel can fall off the grid.
- Stabilizer bars have been available to maintain a pair of grid elements in their desired positions. An example of a prior art stabilizer bar is disclosed in U.S. Pat. No. 4,064,671. A typical prior art stabilizer bar in a completed ceiling installation cannot be ordinarily relocated to a functional position after an underlying panel has been raised to gain access to the plenum above the ceiling. There is no practical way of reinstalling stabilizer bars where the adjacent panels on both sides of the removed panel are in place. Accordingly, there has existed a need for a stabilizer bar arrangement that can be reinstalled after the panel beneath it is raised for access and then reset in a ceiling grid module.
- The invention provides a stabilizer bar for a suspended ceiling grid that is reinstallable after its removal for access to the plenum above the ceiling. The stabilizer bar, in accordance with the invention, is rigidly affixed to the rear side of the ceiling panel and is arranged to engage a pair of parallel spaced grid runners when the panel is lowered into place.
- A hook structure at each end of the stabilizer bar is proportioned to laterally restrain an associated grid member. The hook structure engages opposite sides of a reinforcing bulb of a respective grid runner. As a result, the respective grid runner is restrained from excessive bowing and/or tilting which could otherwise result with an edge of an associated panel free to sag or drop from the grid.
- In the disclosed embodiment, the stabilizer bar is provided with integral tabs for penetrating and locking onto the body or core of an associated acoustical panel. Alternatively, the stabilizer bar has provisions for being fixed with screws or like fasteners to a wood or other dense composite panel.
-
FIG. 1 is an isometric view of a stabilizer bar constructed in accordance with the invention; -
FIG. 2 is a plan view of a blank or stamping from which the stabilizer bar ofFIG. 1 is formed; -
FIG. 3 is an end view of the stabilizer bar; -
FIG. 4 is a fragmentary isometric view of the stabilizer bar showing the deployed positions of a stab tab, a capture tab, and a folded bulb hook; -
FIG. 5 is an elevational view of the stabilizer bar fixed as an assembly on a ceiling panel with the assembly installed on a pair of parallel grid runners; and -
FIG. 6 is a fragmentary isometric view of the stabilizer bar modified and fixed on a high density panel. - A
stabilizer bar 10 shown inFIG. 1 is an elongated sheet metal body formed with a right angle cross-section. Thestabilizer bar 10 can be made of a suitable malleable metal such as, for example, 21 gauge hot dipped galvanized steel. The stabilizer bar, for example, can have nominal lengths of 24 inches, 30 inches, and 48 inches or metric industry substitutes for these dimensions depending on the application. Thestabilizer bar 10 is symmetrical about its mid-length. Thestabilizer bar 10 includes ahorizontal leg 11 and avertical leg 12, both of which are generally planar allowing a plurality of stabilizer bars to be nested for shipping purposes. Thehorizontal leg 11 has a pair ofintegral stab tabs 16 stamped or otherwise cut into its body at locations spaced from the leg ends along a free or distallongitudinal edge 17. With particular reference toFIG. 2 , showing the profile of thelegs tabs 16 are somewhat pointed adjacent the line of thedistal edge 17. Ahole 18 in theleg 11 at the base of atab 16 leaves twoland areas 19 connecting the tab to the leg proper. Thehole 18 forms a line ofweakness 21 parallel to the length of thestabilizer bar 10. At each end of thestabilizer bar 10, thehorizontal leg 11 is formed with anintegral capture tab 23. Preferably, thecapture tab 23, in the form of the stabilizer bar as it is shipped from the manufacturing site, has aproximal portion 24 in the plane of thehorizontal leg 11 and a distal dependingportion 25 in a plane at right angles to the plane of the horizontal leg. Thedistal portion 25 is in the form of a pair of truncated or bluntedtriangular barbs 26. - A through
slot 27 transverse to the length of thestabilizer bar 10 leaves a pair of spacedlands 28 joining thecapture tab 23 to the horizontal leg proper and forms a transverse line ofweakness 29 between the horizontal leg proper and thecapture tab 23. A plurality of throughholes 32 are spaced along the length of the horizontal leg, preferably midway between theedge 17 and thevertical leg 12. - As shown in
FIG. 3 , thevertical leg 11 is stiffened at its upper edge by an integral offset formed by an obliquenarrow band 33 and a verticaldistal strip 34. Each end of thevertical leg 12 includes avertical slot 37 open at the bottom and forming an integral vertical dependinghook 38. A free end of thehook 38 has abeveled edge 39 leading to theslot 37. A juncture of thehook 38 with the vertical leg proper is interrupted by a small throughvertical slot 41 that leaves a pair ofland areas 42 and forming a vertical line ofweakness 43 in the juncture. - The selected length of the stabilizer bar will correspond to the nominal spacing of a pair of main tees on which the
stabilizer bar 10 is ultimately mounted. One or twostabilizer bars 10 can be used on a ceiling panel, depending on the length of the panel. Ordinarily, where one is used, it is located at mid-length of the panel; when two are used on longer panels, they are located from an end of the panel at ⅓ and ⅔ of the panel length. - The
stabilizer bar 10 can be fixed on the back side of an acoustical ceiling panel or tile of a low density type using theintegral tabs FIG. 3 , but their mutual assembly is accomplished before they are mounted on the ceiling grid. First, thestab tabs 16 are manually bent down 90 degrees to a vertical orientation, typically by the person installing aceiling panel 44. Theland areas 19 bend at the line ofweakness 21. Thereafter, thestabilizer bar 10 is laterally symmetrically located on thepanel 44 so that theslots 37 are both outward oflong edges 46 of thepanel 44 as shown inFIG. 5 . Then, thestabilizer bar 10 is pressed downward to drive thestab tabs 16 into the core of thepanel 44 until the lower face of thehorizontal leg 11 abuts the backside of thepanel 44. Next, thecapture tabs 23 are deployed by bending them so that thebarbs 26 are driven into thevertical surfaces 46 of the respective edges of thepanel 44. Thecapture tab 23 hinges about theline 29 so that theproximal part 24 of thetab 23 can be folded tightly against theedge surface 46 while thebarbs 26 are driven with a horizontal movement component into the core of thepanel 44. - With the
stab tabs 16 andcapture tabs 23 deployed as described, thestabilizer bar 10 is fixed on thepanel 44. The assembly of thepanel 44 andstabilizer bar 10 or stabilizer bars is ordinarily installed on a grid by first manipulating the assembly through a grid opening from below much the same way an ordinary panel without a stabilizer bar is manipulated. The suspended ceiling grid is represented by a pair of parallel spaced grid runners ortees 51 illustrated inFIG. 5 . Thegrid runners 51 are spaced in parallel relation at, typically, the nominal dimensions recited above in the description of normally available stabilizer bars 10. The panel and stabilizer bar assembly is aligned so that it overlies a grid module and is then lowered into place. - The beveled edges 39 on the
hooks 38 afford a centering action to bring the panel and stabilizer bar assembly into lateral registration with thegrid tees 51. As the assembly is lowered, reinforcingbulbs 52 of thegrid runners 51 enterrespective slots 37 in the stabilizer barvertical leg 12. The width of aslot 37 is dimensioned with a moderately loose fit relative to the width of a reinforcingbulb 52 to allow the bulb to freely slide into the slot but to not allow appreciable lateral movement of the bulb. The vertical dimension of theslot 37 is large in comparison to the height of thebulb 52, in a normal range of panel thickness, so that a clearance will exist between the stabilizer bar and the top of the bulb. Thehook 38 can be manually bent towards the associatedbulb 52 at theline 43 to reduce interference with installation or removal of a panel in the adjacent grid module. - With the
panel 44 resting onflanges 53 of thegrid runners 51, the reinforcingbulbs 52 are constrained in both lateral directions by the sides of therespective slots 37. Consequently, thegrid runners 51 are restrained from significant lateral bowing and/or twisting about their longitudinal axii. Therefore, the risk that the edge of apanel 44 can slip off aflange 53, deflected by the weight of a long panel or other force, is greatly reduced, if not eliminated. - The inventive stabilizer bar has the advantage of allowing the
panel 44 to which it is fixed to be lifted for access to the plenum above the grid and permits it to be reinstalled in the same manner as it was initially installed. - The stabilizer bar can be modified by the technician installing it for use with wood or other dense core panels or tiles. A
small reference notch 56 exists in thehorizontal leg edge 17 adjacent each end of theleg 11. A diagonal cut with a tin snips or the like is made from thenotch 56 to the end of thehorizontal leg 11 to sever thecapture tab 23 from the stabilizer bar. Thestab tabs 16 are not bent out of the plane of thehorizontal leg 11. As illustrated inFIG. 6 , thestabilizer bar 10 is located on the back of a dense panel substantially as described above.Short screws 57 are assembled in theholes 32 and driven into the panel core to fix the modified stabilizer bar to the panel. - It should be evident that this disclosure is by way of example and that various changes may be made by adding, modifying or eliminating details without departing from the fair scope of the teaching contained in this disclosure. The invention is therefore not limited to particular details of this disclosure except to the extent that the following claims are necessarily so limited.
Claims (13)
Priority Applications (1)
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US13/953,928 US8955272B1 (en) | 2013-07-30 | 2013-07-30 | Accessible stabilizer bar |
Applications Claiming Priority (1)
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US13/953,928 US8955272B1 (en) | 2013-07-30 | 2013-07-30 | Accessible stabilizer bar |
Publications (2)
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US20150033657A1 true US20150033657A1 (en) | 2015-02-05 |
US8955272B1 US8955272B1 (en) | 2015-02-17 |
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US13/953,928 Active US8955272B1 (en) | 2013-07-30 | 2013-07-30 | Accessible stabilizer bar |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140090328A1 (en) * | 2010-11-01 | 2014-04-03 | Awi Licensing Company | Suspended ceiling system, securing members, and process of installing a suspended ceiling system |
CN109537795A (en) * | 2018-12-07 | 2019-03-29 | 河南三阳建材科技有限公司 | It can any curved Multi-functional ceiling profile and ceiling structure |
US20220316207A1 (en) * | 2021-03-30 | 2022-10-06 | Fusion Optix, Inc. | Multifunctional ceiling support assembly for use in a suspended ceiling system |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2719479B1 (en) * | 2011-06-13 | 2016-08-17 | Mitsubishi Electric Corporation | Insertion frame structure and housing using same |
US20230037173A1 (en) * | 2021-07-27 | 2023-02-02 | Certainteed Ceilings Corporation | Ceiling grid support bar, and ceiling system |
US11608636B1 (en) * | 2021-11-17 | 2023-03-21 | Usg Interiors, Llc | T-grid to baffle bar bracket |
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US8596009B2 (en) * | 2010-11-01 | 2013-12-03 | Awi Licensing Company | Suspended ceiling system, securing members, and process of installing a suspended ceiling system |
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10718113B2 (en) | 2010-11-01 | 2020-07-21 | Awi Licensing Llc | Suspended ceiling system, securing members, and process of installing a suspended ceiling system |
US9091051B2 (en) * | 2010-11-01 | 2015-07-28 | Awi Licensing Company | Suspended ceiling system, securing members, and process of installing a suspended ceiling system |
US9453339B2 (en) | 2010-11-01 | 2016-09-27 | Awi Licensing Llc | Suspended ceiling system, securing members, and process of installing a suspended ceiling system |
US10030387B2 (en) | 2010-11-01 | 2018-07-24 | Awi Licensing Llc | Suspended ceiling system, securing members, and process of installing a suspended ceiling system |
US10294663B2 (en) | 2010-11-01 | 2019-05-21 | Awi Licensing Llc | Suspended ceiling system, securing members, and process of installing a suspended ceiling system |
US20140090328A1 (en) * | 2010-11-01 | 2014-04-03 | Awi Licensing Company | Suspended ceiling system, securing members, and process of installing a suspended ceiling system |
US11479971B2 (en) | 2010-11-01 | 2022-10-25 | Awi Licensing Llc | Suspended ceiling system, securing members, and process of installing a suspended ceiling system |
US11952776B2 (en) | 2010-11-01 | 2024-04-09 | Armstrong World Industries, Inc. | Suspended ceiling system, securing members, and process of installing a suspended ceiling system |
CN109537795A (en) * | 2018-12-07 | 2019-03-29 | 河南三阳建材科技有限公司 | It can any curved Multi-functional ceiling profile and ceiling structure |
US20220316207A1 (en) * | 2021-03-30 | 2022-10-06 | Fusion Optix, Inc. | Multifunctional ceiling support assembly for use in a suspended ceiling system |
US20220372752A1 (en) * | 2021-03-30 | 2022-11-24 | Fusion Optix, Inc. | Edgelit multifunctional lighting assembly for use in a suspended ceiling system |
US11512466B2 (en) * | 2021-03-30 | 2022-11-29 | Fusion Optix, Inc. | Multifunctional ceiling support assembly for use in a suspended ceiling system |
US11885128B2 (en) * | 2021-03-30 | 2024-01-30 | Fusion Optix, Inc. | Edgelit multifunctional lighting assembly for use in a suspended ceiling system |
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Legal Events
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