US3797789A - Support bar for suspended ceiling light fixture - Google Patents
Support bar for suspended ceiling light fixture Download PDFInfo
- Publication number
- US3797789A US3797789A US00237052A US3797789DA US3797789A US 3797789 A US3797789 A US 3797789A US 00237052 A US00237052 A US 00237052A US 3797789D A US3797789D A US 3797789DA US 3797789 A US3797789 A US 3797789A
- Authority
- US
- United States
- Prior art keywords
- support bar
- main runner
- legs
- structures
- suspended ceiling
- 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.)
- Expired - Lifetime
Links
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
- F21V21/04—Recessed bases
-
- 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
- E04B9/006—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation with means for hanging lighting fixtures or other appliances to the framework of the ceiling
Definitions
- U. 5. Pat. No. 3,581,448 is another example of a support structure for holding a light fixture in position in a ceiling assembly.
- a support bar structure which may be positioned anywhere within the ceiling system to support a light fixture in position.
- the support bar is carried by the main runner structures and can position the light fixture anywhere within two adjacent main runner structures without having the need to restrict the light fixture placement relative to the placement of the cross runner structures which heretofore have been the basic support structures for the light fixtures.
- Main runner structures are the primary support elements for a suspended ceiling system.
- a plurality of the main runner structures are placed in a side-by-side relationship. normally spaced 2 feet apart.
- the light fixture is meant to be positioned between, and extending along, the main runner structures.
- the invention herein is a support bar which has collapsible legs. The structure is in a collapsed state for shipment, and the legs are extended to their operational position when the support bar is mounted in position.
- the support bars are formed with ends on the leg structures which permit the support bars to readily engage the vertical web of the main runner structure. This then holds the support bar in position spanning the distance between two main runner structures.
- Two support bars are positioned between two adjacent main runner structures, and a light fixture is hung from the support bars.
- FIGURE is a perspective view of the invention.
- cross runner structures are very similar to elements 12 of US. Pat. No. 3,352,071.
- cross runner structures Since the placement of the cross runner structures is controlled by the board or lens size and, since they are not of great structural strength, it is more convenient to support lighting fixtures from supplemental support elements rather than the cross runner structures.
- a support bar structure for supporting light fixtures in a suspended ceiling system.
- the support bar structure is positioned to span two adjacent main runner structures 2 and the support bar is carried by the vertical web 6 of the main runner structures 2.
- the vertical web is an I-I-shape and the support bar structure herein can be used with one leg of the H or with the single leg of the inverted T-shape.
- the support bar is basically composed of a main body structure 8 and two leg assemblies 10.
- the main body structure 8 is basically an inverted U- shaped channel structure which is slightly longer than the distance between two adjacent main runner structures 2. Slot structures 12 are provided in the surface 141 of the channel structure. The slots 12 are for use with the light fixture support strap of the abovementioned copending application.
- Each of the leg assemblies 10 is fastened by a pin 16 to the end of the main body structure 8.
- the pin 16 not only fastens the leg assemblies to the main body structure, but also functions as a pivot point which will permit the leg assemblies 10 to swing relative to the main body structure 8.
- the leg assemblies 10 are of basically a modified U- shape. Each leg 20 of the U is roughly triangular in shape. Generally, the base of the triangle is positioned by the side of the main body structure 8 and the pivot pin 16 passes through one corner of the base. Closely adjacent the pivot pin a little lock tab 18 is formed to lock the leg in position.
- the lock tab is formed by cutting out a piece of metal along three sides from the side legs 20. The tab is formed very similarly to the protuberance 34 of U. S. Pat. No. 3,352,071. When the triangular sides of the leg assemblies 10 are positioned adjacent the main body member 8, the tab is in an ineffecfive position.
- notch structure 26 Into this notch structure 26 is positioned the top of the vertical web 6 of the main runner structure 2. The combination of the notch resting on the vertical web plus the flat structure 22 positioned on one side of the vertical web will hold the support bar in position. The provision of a screw through hole 24 will permanently lock the structures together.
- a support bar for lighting fixtures which may be shipped in a collapsed state and readily extended to span the distance between two adjacent main runner structures to support a light fixture therein.
- the right side of the support bar of the same drawing shows the leg in its extended state in engagement with the vertical web of a main runner structure.
- the support bar for supporting a light fixture within a suspended ceiling system.
- the suspended ceiling system being composed of main runner structures which are generally of an inverted T shape with an upwardly extending vertical web, said support bar structure being of a length approximately that of the spacing between two adjacent main runner structures, said support bar having two pivotally-connected legs at the ends of the support bar structure, said pivoted legs having means on the ends of the legs for engaging the top ponly of the vertical web of the main runner structures to support the support bar in position on two adjacent main runner structures.
- said legs for the support bar are generally U-shaped with two sides and a connecting part and with the ends of the two sides of the U shape extending on either side of the main body of the support bar, each of the sides at their ends near the connecting part containing a notch which engages only the top of the vertical web of the main runner structure and the connecting part between the two sides of the U- shaped leg being positioned on one side of the vertical web of the main runner structure.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Suspended ceiling systems are provided with light fixtures which are supported by the gridwork of the suspended ceiling system. Herein, a support bar is positioned relative to two adjacent main runner structures of a suspended ceiling system for the purpose of supporting one side of a light fixture. The light fixture is hung from two adjacent support bars which are in turn supported by the main runner portion of the ceiling system.
Description
United States Patent [191 Wasson [4 1 Mar. 19, 1974 SUPPORT BAR FOR SUSPENDED CEILING LIGHT FIXTURE [75] Inventor:
[73] I Assignee: Armstrong Cork Company,
Lancaster, Pa.
[22] Filed: Mar. 22, 1972 [21] Appl. No.: 237,052
Kenneth L. Wasson, Lancaster, Pa.
[52] US. Cl 248/214, 52/28, 248/343 [51] Int. Cl. F21! 3/02 [58] Field of Search 248/214, 215, 342, 343,
[56] References Cited UNITED STATES PATENTS 11/1967 Sutter. 52/28 8/1933 Yeager..." 2/1937 Venzie 52/484 X 3.711.052 1/1973 Hoffman 248/343 X 3,039,729 6/1962 Nagle 248/343 2,939,669 6/1960 Pascucci 248/343 FOREIGN PATENTS OR APPLICATIONS 1,413,410 8/1965 France 248/343 Primary Examiner-J. Franklin Foss [5 7] ABSTRACT Suspended ceiling systems are provided with light fixtures which are supported by the gridwork of the suspended ceiling system. Herein, a support bar is positioned relative to two adjacent main runner structures of a suspended ceiling system for the purpose of supporting one side of a light fixture. The light fixture is hung from two adjacent support bars which are in turn supported by the main runner portion of the ceiling system.
3 Claims, 1 Drawing Figure SUPPORT BAR FOR SUSPENDED CEILING LIGHT FIXTURE BACKGROUND OF THE INVENTION 1. Field of the Invention The invention herein is directed to a suspended ceiling system and, more particularly, to a light fixture support bar in a suspended ceiling system.
2. Description of the Prior Art In U. S. Pat. No. 3,352,07], the conventional cross runner 12 is used to carry the lighting fixture. This is a very typical installation for supporting a light fixture in the ceiling system.
U. 5. Pat. No. 3,581,448 is another example ofa support structure for holding a light fixture in position in a ceiling assembly.
A number of different structures are available in the art to support a lighting fixture. Herein, there is provided a support bar structure which may be positioned anywhere within the ceiling system to support a light fixture in position. The support bar is carried by the main runner structures and can position the light fixture anywhere within two adjacent main runner structures without having the need to restrict the light fixture placement relative to the placement of the cross runner structures which heretofore have been the basic support structures for the light fixtures.
SUMMARY OF THE INVENTION Main runner structures are the primary support elements for a suspended ceiling system. A plurality of the main runner structures are placed in a side-by-side relationship. normally spaced 2 feet apart. The light fixture is meant to be positioned between, and extending along, the main runner structures. The invention herein is a support bar which has collapsible legs. The structure is in a collapsed state for shipment, and the legs are extended to their operational position when the support bar is mounted in position. The support bars are formed with ends on the leg structures which permit the support bars to readily engage the vertical web of the main runner structure. This then holds the support bar in position spanning the distance between two main runner structures. Two support bars are positioned between two adjacent main runner structures, and a light fixture is hung from the support bars.
BRIEF DESCRIPTION OF THE DRAWING The sole FIGURE is a perspective view of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT rality of ceiling boards or translucent lens elements are,
positioned on the horizontal flanges 4 of the main runner structures. Since the boards and lenses are approximately 4 feet in length. cross runner structures would be provided to support the edges of two adjacent boards or lenses. These cross runner structures are very similar to elements 12 of US. Pat. No. 3,352,071.
Since the placement of the cross runner structures is controlled by the board or lens size and, since they are not of great structural strength, it is more convenient to support lighting fixtures from supplemental support elements rather than the cross runner structures.
Herein, is provided a support bar structure for supporting light fixtures in a suspended ceiling system. The support bar structure is positioned to span two adjacent main runner structures 2 and the support bar is carried by the vertical web 6 of the main runner structures 2. In some main runner structures, the vertical web is an I-I-shape and the support bar structure herein can be used with one leg of the H or with the single leg of the inverted T-shape. In the embodiment shown in the drawing, the support bar is basically composed of a main body structure 8 and two leg assemblies 10.
The main body structure 8 is basically an inverted U- shaped channel structure which is slightly longer than the distance between two adjacent main runner structures 2. Slot structures 12 are provided in the surface 141 of the channel structure. The slots 12 are for use with the light fixture support strap of the abovementioned copending application.
Each of the leg assemblies 10 is fastened by a pin 16 to the end of the main body structure 8. The pin 16 not only fastens the leg assemblies to the main body structure, but also functions as a pivot point which will permit the leg assemblies 10 to swing relative to the main body structure 8.
The leg assemblies 10 are of basically a modified U- shape. Each leg 20 of the U is roughly triangular in shape. Generally, the base of the triangle is positioned by the side of the main body structure 8 and the pivot pin 16 passes through one corner of the base. Closely adjacent the pivot pin a little lock tab 18 is formed to lock the leg in position. The lock tab is formed by cutting out a piece of metal along three sides from the side legs 20. The tab is formed very similarly to the protuberance 34 of U. S. Pat. No. 3,352,071. When the triangular sides of the leg assemblies 10 are positioned adjacent the main body member 8, the tab is in an ineffecfive position. Swinging the leg assemblies 10 through degrees relative to the main body structure 8 then permits the tab to pop outwardly from the leg 20 and engage the lower edge of the U of the main body structure 8. This then prevents the leg from moving back towards its collapsed position. Connecting the two side legs 20 of the leg assembly 10 there is a flat metal structure 22. This structure is positioned on one side of the vertical web 6 of a main runner member 2 and is provided with a hole 24 into which a sheet metal screw may be placed to fasten the structure 22 to the vertical web 6 of the main runner structure. This in turn will result in the attachment of the support bar to the main runner structure. At the point where the flat structure 22 engages the triangular legs 20, the triangular legs are provided with a notch structure 26. Into this notch structure 26 is positioned the top of the vertical web 6 of the main runner structure 2. The combination of the notch resting on the vertical web plus the flat structure 22 positioned on one side of the vertical web will hold the support bar in position. The provision of a screw through hole 24 will permanently lock the structures together.
There is now provided a support bar for lighting fixtures which may be shipped in a collapsed state and readily extended to span the distance between two adjacent main runner structures to support a light fixture therein. On the left side of the showing of the support bar in the drawing. there is shown in dotted line form the leg in its collapsed state. The right side of the support bar of the same drawing shows the leg in its extended state in engagement with the vertical web of a main runner structure.
What is claimed is:
1. The support bar for supporting a light fixture within a suspended ceiling system. the suspended ceiling system being composed of main runner structures which are generally of an inverted T shape with an upwardly extending vertical web, said support bar structure being of a length approximately that of the spacing between two adjacent main runner structures, said support bar having two pivotally-connected legs at the ends of the support bar structure, said pivoted legs having means on the ends of the legs for engaging the top ponly of the vertical web of the main runner structures to support the support bar in position on two adjacent main runner structures. said legs for the support bar are generally U-shaped with two sides and a connecting part and with the ends of the two sides of the U shape extending on either side of the main body of the support bar, each of the sides at their ends near the connecting part containing a notch which engages only the top of the vertical web of the main runner structure and the connecting part between the two sides of the U- shaped leg being positioned on one side of the vertical web of the main runner structure.
2. The structure of claim 1 wherein there is means to lock the legs in their extended position generally perpendicular to the ends of the main body of the support bar.
3. The structure of claim 2 wherein means are provided on the legs for fastening the legs to the vertical web of the main runner structures to permanently lock the support bar and main runner structure together.
Claims (3)
1. The support bar for supporting a light fixture within a suspended ceiling system, the suspended ceiling system being composed of main runner structures which are generally of an inverted T shape with an upwardly extending vertical web, said support bar structure being of a length approximately that of the spacing between two adjacent main runner structures, said support bar having two pivotally-connected legs at the ends of the support bar structure, said pivoted legs having means on the ends of the legs for engaging the top ponly of the vertical web of the main runner structures to support the support bar in position on two adjacent main runner structures, said legs for the support bar are generally U-shaped with two sides and a connecting part and with the ends of the two sides of the U shape extending on either side of the main body of the support bar, each of the sides at their ends near the connecting part containing a notch which engages only the top of the vertical web of the main runner structure and the connecting part between the two sides of the Ushaped leg being positioned on one side of the vertical web of the main runner structure.
2. The structure of claim 1 wherein there is means to lock the legs in their extended position generally perpendicular to the ends of the main body of the support bar.
3. The structure of claim 2 wherein means are provided on the legs for fastening the legs to the vertical web of the main runner structures to permanently lock the support bar and main runner structure together.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23705272A | 1972-03-22 | 1972-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3797789A true US3797789A (en) | 1974-03-19 |
Family
ID=22892147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00237052A Expired - Lifetime US3797789A (en) | 1972-03-22 | 1972-03-22 | Support bar for suspended ceiling light fixture |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3797789A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995798A (en) * | 1975-12-05 | 1976-12-07 | Armstrong Cork Company | Support for a vaulted ceiling module |
| US5024412A (en) * | 1990-10-15 | 1991-06-18 | Llama Precision Inc. | Hanger assembly |
| USD328453S (en) | 1989-10-17 | 1992-08-04 | Naumann Robert E | Face plate for a ceiling electrical box |
| US6119784A (en) * | 1999-01-08 | 2000-09-19 | Pnm, Inc. | Support system for fire protection sprinklers |
| US6123154A (en) * | 1999-01-08 | 2000-09-26 | Pnm, Inc. | Support system attachment mechanism for fire protection sprinklers |
| US6488097B1 (en) | 1999-01-08 | 2002-12-03 | Pnm, Inc. | Fire protection sprinkler head support |
| US20070289241A1 (en) * | 2006-06-14 | 2007-12-20 | Conde Warren C | False ceiling termination clip |
| US20080067313A1 (en) * | 2003-11-20 | 2008-03-20 | Greg Herth | Variable spacing mounted versatile paddle fan and ceiling electrical box |
| US7874708B1 (en) * | 2007-06-26 | 2011-01-25 | Genlyte Thomas Group, Llc | T-bar mounting system |
| US9004422B2 (en) | 2011-11-02 | 2015-04-14 | The Viking Corporation | Fire protection sprinkler support system |
| US9004421B2 (en) | 2011-11-02 | 2015-04-14 | The Viking Corporation | Fire protection sprinkler support system |
| CN105780997A (en) * | 2016-04-15 | 2016-07-20 | 法狮龙建材科技有限公司 | Suspended ceiling electrical transition structure |
| US9889327B2 (en) | 2014-06-27 | 2018-02-13 | Flexhead Industries, Inc. | Adjustable bracket and hub for flexible hose support |
| US9919799B2 (en) | 2014-11-19 | 2018-03-20 | The Boeing Company | Aircraft interior module support system including shared fittings |
| US10173088B2 (en) | 2014-05-28 | 2019-01-08 | The Reliable Automatic Sprinkler Co., Inc. | Bracket for installation of a fire protection sprinkler |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1924824A (en) * | 1931-09-23 | 1933-08-29 | Prentiss Wabers Products Co | Vapor stove |
| US2070150A (en) * | 1933-03-30 | 1937-02-09 | Nat Gypsum Co | Building construction |
| US2939669A (en) * | 1956-10-29 | 1960-06-07 | Miller Co | Hanger assembly for lighting fixtures |
| US3039729A (en) * | 1959-07-24 | 1962-06-19 | Sr Francis E Nagle | Lighting fixture support |
| FR1413410A (en) * | 1964-10-27 | 1965-10-08 | Improvements in the method of fixing diffusers of luminaires and the like | |
| US3352071A (en) * | 1965-03-08 | 1967-11-14 | Lock Products Co | Fixture for use in a suspended grid ceiling system |
| US3711052A (en) * | 1971-01-28 | 1973-01-16 | Westinghouse Electric Corp | Support hanger for interior lighting fixture |
-
1972
- 1972-03-22 US US00237052A patent/US3797789A/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1924824A (en) * | 1931-09-23 | 1933-08-29 | Prentiss Wabers Products Co | Vapor stove |
| US2070150A (en) * | 1933-03-30 | 1937-02-09 | Nat Gypsum Co | Building construction |
| US2939669A (en) * | 1956-10-29 | 1960-06-07 | Miller Co | Hanger assembly for lighting fixtures |
| US3039729A (en) * | 1959-07-24 | 1962-06-19 | Sr Francis E Nagle | Lighting fixture support |
| FR1413410A (en) * | 1964-10-27 | 1965-10-08 | Improvements in the method of fixing diffusers of luminaires and the like | |
| US3352071A (en) * | 1965-03-08 | 1967-11-14 | Lock Products Co | Fixture for use in a suspended grid ceiling system |
| US3711052A (en) * | 1971-01-28 | 1973-01-16 | Westinghouse Electric Corp | Support hanger for interior lighting fixture |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995798A (en) * | 1975-12-05 | 1976-12-07 | Armstrong Cork Company | Support for a vaulted ceiling module |
| USD328453S (en) | 1989-10-17 | 1992-08-04 | Naumann Robert E | Face plate for a ceiling electrical box |
| US5024412A (en) * | 1990-10-15 | 1991-06-18 | Llama Precision Inc. | Hanger assembly |
| US6119784A (en) * | 1999-01-08 | 2000-09-19 | Pnm, Inc. | Support system for fire protection sprinklers |
| US6123154A (en) * | 1999-01-08 | 2000-09-26 | Pnm, Inc. | Support system attachment mechanism for fire protection sprinklers |
| US6488097B1 (en) | 1999-01-08 | 2002-12-03 | Pnm, Inc. | Fire protection sprinkler head support |
| US20030066658A1 (en) * | 1999-01-08 | 2003-04-10 | Pnm, Inc. | Fire protection sprinkler head support |
| US6752218B2 (en) * | 1999-01-08 | 2004-06-22 | Pnm, Inc. | Fire protection sprinkler head support |
| US20040177976A1 (en) * | 1999-01-08 | 2004-09-16 | Pnm, Inc. A Massachusetts Corporation | Fire protection sprinkler head support |
| US7032680B2 (en) | 1999-01-08 | 2006-04-25 | Pnm, Inc. | Fire protection sprinkler head support |
| US20080067313A1 (en) * | 2003-11-20 | 2008-03-20 | Greg Herth | Variable spacing mounted versatile paddle fan and ceiling electrical box |
| US20070289241A1 (en) * | 2006-06-14 | 2007-12-20 | Conde Warren C | False ceiling termination clip |
| US7874708B1 (en) * | 2007-06-26 | 2011-01-25 | Genlyte Thomas Group, Llc | T-bar mounting system |
| US9004422B2 (en) | 2011-11-02 | 2015-04-14 | The Viking Corporation | Fire protection sprinkler support system |
| US9004421B2 (en) | 2011-11-02 | 2015-04-14 | The Viking Corporation | Fire protection sprinkler support system |
| US10173088B2 (en) | 2014-05-28 | 2019-01-08 | The Reliable Automatic Sprinkler Co., Inc. | Bracket for installation of a fire protection sprinkler |
| US10328296B2 (en) | 2014-05-28 | 2019-06-25 | The Reliable Automatic Sprinkler Co., Inc. | Bracket for installation of a fire protection sprinkler |
| US10426986B2 (en) | 2014-05-28 | 2019-10-01 | The Reliable Automatic Sprinkler Co., Inc. | Bracket for installation of a fire protection sprinkler |
| US9889327B2 (en) | 2014-06-27 | 2018-02-13 | Flexhead Industries, Inc. | Adjustable bracket and hub for flexible hose support |
| US10500427B2 (en) | 2014-06-27 | 2019-12-10 | Anvil International, Llc | Adjustable bracket and hub for flexible hose support |
| US10744357B2 (en) | 2014-06-27 | 2020-08-18 | Anvil International, Llc | Adjustable bracket and hub for flexible hose support |
| US10792526B2 (en) | 2014-06-27 | 2020-10-06 | Anvil International, Llc | Adjustable bracket and hub for flexible hose support |
| US9919799B2 (en) | 2014-11-19 | 2018-03-20 | The Boeing Company | Aircraft interior module support system including shared fittings |
| CN105780997A (en) * | 2016-04-15 | 2016-07-20 | 法狮龙建材科技有限公司 | Suspended ceiling electrical transition structure |
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