|Publication number||US2736528 A|
|Publication date||Feb 28, 1956|
|Filing date||Jan 11, 1950|
|Priority date||Jan 11, 1950|
|Publication number||US 2736528 A, US 2736528A, US-A-2736528, US2736528 A, US2736528A|
|Inventors||Brock Glen R Le|
|Original Assignee||Curtis Lighting Inc|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (12), Referenced by (31), Classifications (11)|
|External Links: USPTO, USPTO Assignment, Espacenet|
1956 G. R. LE BROCK HANGER DEVICE FOR LIGHTING FIXTURE Filed Jan 11, 1950 INVENTOR. %7z 32% TTORNEYS.
United States P t Q fO- HANGER DEVICE FOR LIGHTING FIXTURE Glen R. Le Brock, Chicago, Ill., assignor to Curtis Lighting, Inc., Chicago, lll., a corporation of Illinois Application January 11, 1950, Serial No. 137,979
2 Claims. or. 248-317) This invention relates to a hanger device for use with lighting fixtures and the like.
In the technique for hanging fluorescent fixtures, considerable difficulty is encountered in maintaining thedesired position of the usual elongated fixtures, until the proper connection is established with hanger elements of the type which have heretofore been employed. In actual practice, it has often required the services of as many as two men to hold the fixture in place While the third secured the wireways of the fixtures to the hanger. Even after such connections are established, corresponding difficulties are encountered in effecting proper adjustment for height in order to bring all of the fixtures into substantially level alignment.
This technique becomes more and more objectionable as the length and the weight of the fixture increases and from the cost standpoint, the installation charges are more than is to be desired.
It is an object of this invention to produce a hanger device which requires a minimum amount of labor for installation thereof and installation of the lighting fixture.
Another object is to produce a hanger device for lighting fixtures which permits adjustment for height to be rather accurately estimated prior to mounting the'fixture in position of use and which permits adjustment for height after assembly in a simple and expedient manner.
A further object is to produce a hanger device for lighting fixtures which may be positioned throughout the ceiling structure prior to installation of the lighting fixture, which receives the lighting fixture in the assembled relation through the expenditure of a minimum amount of effort and labor.
A still further object is to produce a hanger device of the type described which is simple in operation, sturdy in construction and manufactured of relatively few simple parts and which is adapted to permit mounting of the light fixture in position of use in an expeditious manner by establishing a firm gripping relation at frequent intervals throughout the length of the lighting fixture and at the connection of joining lighting fixtures.
These and other objects and advantages of this invention will hereinafter appear, and for purposes of illustration, but not of limitation, an embodiment is shown in the accompanying drawing in which- Figure 1 is a perspective view of a lighting fixture assembly employing hangers that embody features of this invention,
Figure 2 is an enlarged sectional view through a hanger of the type shown in Figure 1,
Figure 3 is a perspective view of the parts making up the hanger device in their disassembled relation, and
Figure 4 is a sectional elevational view showing a slight modification in a device embodying features of this invention.
A hanger device of the type employed in this invention is adapted to be used on the lower end of a hanger rod having a threaded upper end portion 11 which is threadably engaged by a nut 12 for cooperation with a i like.
2,736,528 Patented Feb. 28, 1956 hickey toggle or other means by which the hanger rod 10 is firmly positioned in the ceiling.
As shown in greater detail in Figure 3, the device carried on the lower threaded end 13 of the hanger rod 10 is formed ofa pair of rectangularly shaped strips 14 and 15 of rigid material, such as metal, plastic, wood, or the Each strip has a horizontal end portion 16 and 17 respectively, an integral intermediate portion 18 and 19 respectively which are downwardly and outwardly inclined at substantially the same angle from the horizontal portions 16 and 17 and at substantially the same angle as an inclined portion 20 which extends as a rib 21 through-v out the upper lateral walls of the wireway 22 of the light-v ing fixture. 23 and 24 integral with the lower end of the intermediate portions 18 and 19 respectively. In the, assembled rela tion, the claw-like members 23 and 24are adapted tobe substantially horizontally disposed and are in an abutting relation with the substantially horizontally disposed walls 25 formedon the under side of the ribs 21.
In the assembled relation, the horizontal portions 16 and 17 are adapted to be lapped one over the other by a sub: stantial amount and registerable openings 27 and 28 re-' spectively are provided for extension therethrough of the threaded-end portion 13 of the rod. To militate against 1 inadvertent lateral swinging movement of parts 14 and 15 when in the assembled relation, stops 29 are struck up from the lowermember 14 and other stops 30 are struck downwardly from the upper member 15. These stops are spaced in the horizontal portions 16 and 17 .re-
. spectively to be closely adjacent the end of the lapping portion of the cooperating part. The inclined portion of the upper of the overlapping members, in this instance part 19, is dimensioned to be longer than the part 18 by an amount corresponding to the thickness of part 16 so that the lip members 23 and 24 will be at the same level when in the assembled relation.
The lips or claw-like members 23 and 24 are shown with a central cutout portion 31 to permit parts of connectors to extend therethrough when in the assembled relation. These connectors 32, as shown in Figure 1, are used to join one lighting fixture with another to form a continuous abutting chain. With the cutout portion in the hanger device, the hanger may be used at this juncture to support at their very ends. It will be understood that where the device is used to engage intermediate portions of the fixtures, the cutouts are unnecessary.
The threaded end portion 13 of the hanger rod 10 has a pair of nut members 32 and 33 arranged with the overlapping portions 16 and 17 therebetween.
In operation, one or a pair or more of these hanger assemblies are fixed in the desired arrangement in the ceiling. Adjustment for height may be effected at this time, prior to mounting the fixture. The nut members 32 and 33 are spaced apart in order to permit the parts 14 and 15 to be loosely positioned therebetween. When all of the adjustments have been made, it is then only necessary to raise the lighting fixtures into position of use by the insertion of the rib portion 21 between the claw-like members 23 and 24. The members 14 and 15 are able to be deflected sufficiently in this loose condition to permit the rib portion to be inserted beyond the claw-like members 23 and 24. As the end of the ribbed portion passes beyond the claws, the parts 14 and 15, and the claw-like members 23 and 24 naturally fall into position to grip the ribbed portion and the wireway therebetween. At this stage the wireway may be released and it will still be held effectively in the mountedrelation. For final assembly, it is only necessary to turn the top screw 32 down to grip the parts 14 and 15 firmly therebetween to establish a permanent relation. In this relation the lips or claw-like members 23 and 24 seat under Each strip also has a turned in lip or claw.
neath the. Walls 26 of the rib while the inclined portions 18 and 19 embrace the inclined walls 20 of. the rib.
In the event that the hanger rod is in the form of a narrow rod-like member 40, as shown in Figure 4 it is possible to effect, a corresponding arrangement by providing a bushing part 41 having an external dimension adapted to fit. within the openings 27 and 28 in the parts 14 and 15 respectively. The bushing part may be externally threaded. for engagement by a nut 42 while its. internal bore. may be threaded, as at 43, for threaded engagement. with the threaded end 44 of the rod 40. Such adjustment along the rod may be effected from the knurled end. 45. An enlarged shoulder 46 integrated with the lower end. of the bushing part which extends through the opening engages the underside of the strip 15. and. cooperates with the nut 42 to grip. the parts firmly therebetween when in the assembled. relation.
Adjustment for height can be effected while the parts are in. the assembled relation merely by turning the. bush iugpart relative to the supporting rod.
As shown in Figure l, the. hanger rods may serve as. wire. entrancev hangers to feed the Wires 47 into the wireways- 20.. The threaded end portions 13 may be made to extend a suflicient distance from the hanger device proper to permit. entrance into suitable openings provided in the top wall of the wireway and thereby secure a more rigid and effective assembly, as shown in Figure 2..
It will be obvious from the above description that a newand novel hanger device is provided which greatly simplifies the hanging of heavy or elongated lighting fix tures. By employing the means described, it is possible to efiect a lighting assembly with a single person and with a minimum amount of time and labor.
It will be understood that numerous changes, may be madein the details of construction, arrangement, and operation without departing from the spirit of the invention, especially as defined in the following claims.
What is claimed is:
1. A hanger device for supporting onto the end of a hanger rod a fixture having laterally extending ledges. in spaced relation with the upper edge comprising a pair of similar strip members each having an inturned outer end hook portion, an intermediate portion extending upwardly and inwardly in the direction toward each other but in spaced relation throughout and a horizontally disposed portion at the inner end having openings therein dimensioned to enable the rod to extend loosely therethrough and which when said horizontally disposed portions are in overlapping assembled relation are in registry, an adjustable fastening device for loosely securing the strips in the assembled relation onto the end portion of the hanger rod whereby, until said device is adjusted for tightening the end portions in overlapping relation, the strips. may be rocked about the rod to spread the inturned end portions for clearing the upper edge portions of the fixture whereby the inturned end portions may drop naturally to establish a gripping relation as they clear the ledges and which when tightened prevent relative movement between the strip members to fix the assembled relation.
2. A hanger device as claimed in claim 1 in which portions are struck from the horizontally disposed portions in spaced relation from the ends corresponding to the amount of overlap to provide stops which prevent relative swinging movement between the strips while permitting relative rocking movement until tightened together.
References Cited in the file of this patent UNITED STATES PATENTS 470,102 Canby Mar. 1, 1892 552,986 Carll Jan. 14, 1896 867,760 Schang Oct. 8, 1907 950,978v Williams Mar. 1, 1910 1,029,420 Buzby June 11, 1912 1,553,441 Grunwald Sept. 15, 1925 1,579,418 Tomkinson Apr. 6, 1926 2,297,869 Biller Oct. 6, 1942 2,455,141 Runge Nov. 30, 1948 2,546,043 Parmenter Mar. 20, 1951 2,549,905 Jablon Apr. 24, 1951 2,571,832 Chapin Oct. 16, 1951
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|U.S. Classification||248/317, 280/79.3, 362/404, 248/59|
|International Classification||F21V21/00, F21V21/112|
|Cooperative Classification||F21V21/00, F21Y2103/00, F21V21/112|
|European Classification||F21V21/00, F21V21/112|