US2677754A

US2677754A - Lamp guard

Info

Publication number: US2677754A
Application number: US225736A
Authority: US
Inventors: Gustav W Heinz
Original assignee: Individual
Current assignee: Individual
Priority date: 1951-05-11
Filing date: 1951-05-11
Publication date: 1954-05-04
Anticipated expiration: 1971-05-04

Description

May 4, 1954 G. w. HEINZ 2,677,754

LAMP GUARD Filed May 11, 1951 2 sheefs-sheet 1 Fuz v01. FLQgg.

4 -4 22 T \w 8 22 *l 30 30 c 34 5 3) 32 5 H a 1 36 l 36 34 :J 32 9 l. 32 9 Il I l 'H 26 www *6 j Ji, INVENTOR:

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G. w. HEINZ 2,677,754

LAMP GUAR D May 4, 1954 2 Sheets-Sheet 2 Fued May 11, 1951 INVENTOR:

Patented May 4, 1954 UNITED STATES PATENT OFFICE LAMP GUARD Gustav W. Heinz, Baltimore, Md.

Application May 11, 1951, Serial No. 225,736

(Cl. E40-54) 1 Claim. 1

The present invention relates to a lamp guard of the type including a reflector adapted to be carried by a handle and an open wire cage structure cooperable with the reflector to protectively enclose a lamp supported by the handle.

The principal object of the invention is to provide a lamp guard of the above type which aiords easy access to the enclosed lamp and may be readily attached tothe lamp supporting handle.

Another Iobject of the invention is to provide a lamp guard lof the reflector type which may be attached to the lamp-supporting handle without requiring the use of fastening means such as bolts and screws or the like.

Briey, the foregoing objects are realized by the provision of a lamp guard wherein the open wire cage structure is pivotally mounted upon the reector so that it may be swung toward the reflector into lamp-enclosing and handleclamping position or swung away from the reflector into lamp-access and handle-releasing position, the reflector being provid-ed with ya pivotally mounted locking member which serves both to lock the cage structure in its lamp-enclosing position and to clamp .or fasten the guard about the handle.

The objects briefly outlined above, as well as additional objects not specifically set forth, will be more readily apparent from the following detailed description of one embodiment of the ind vention as shown in the accompanying drawings wherein:

Figure 1 is a front elevational view of the present lamp guard in its lamp-enclosing position;

Figure 2 is a side elevational view of the guard in its lamp-enclosing position;

Figure 3 is a side elevational View of the guard with the cage pivoted away from the reflector into its lamp-access position;

Figure 4 is a transverse sectional View on the line ll-Ll of Figure 2;

Figure 5 is a transverse sectional view on the line 5--5 of Figure 2; and

Figure 6 is a transverse sectional View on the line bof Figure 2.

Referring in more detail to the drawings, a conventional lamp-supporting handle, preferably oi rubber, is indicated at 2, same being equipped with the customary electrical connectors 4 and switch E (Figures 2 and 3). At its upper end, indicated at 8 in the drawings, handle 2 is conventionally adapted to receive and support an appropriate lamp 9 which, when in use, is protected by the lamp guard l0 of the instant invention, guard i@ also being received and .supported by the handle end B, as hereinafter described.

Lamp guard `lli includes a reflector yI2 andan open wire cage structure lil pivotally mounted on reiiector l2 in the manner best shown in Figure 4, i. e., by bending the ends of the arcuate'ly shaped transversely extending wire :member l of cage structure lli to form a pair of yoppositely disposed, inwardly projecting extensions lil which are pvotally received on opposite sides of the upper portion of reflector l2.

The wire cage structure lll includes, in addi-- tion to its transversely extending member I6., a continuous `wire member 2li bent to substantially conform to the outline of .reilector i2 and .a central wire member 22 which is curved 'outwardly from its ends (as shown Figure 2.) and is extended upwardly beyond member 2Q and yshaped to provide a lamp supporting hook 2t.

As will be appreciated, wire members I6., .26 and 22 are all firmly joined together, as by welding, so that cage structure M forms a unitary lstructure of `substantial strength.

As best shown in Figures 1-3, the lower ends of wire members 2li and -22 are ybent slightly inwardly and rigidly secured to a transversely extending handle-embracing member `26, the latter being arcuately shaped that it might be iirmly clamped about the surface of vhandle end portion 8 in the manner most clearly shown in Figures 2 and 6. Similarly, the lower end portion of reflector l2 is indented to provide another arcuately shaped handle embracing member 2B which, in cooperation with cage embracing member 26, serves to clamp guard lli rmly and tightly to handle 2, as hereinafter described, when cage structure I4 is locked in the lampenclosing position shown in Figures 1 and 2.

In order to lock cage structure lil in the lampenclosing position of Figures 1 and 2 and, at the same time clamp guard lil rmly about end 8 of handle 2, the guard is provided with a transversely extending, arcuately shaped resilient locking member Sil having its ends 32 bent downwardly and thence inwardly and freely pivoted on the lower portion of reilector l2, adjacent the latters handle embracing member 25, in the manner most clearly shown in Figure 5. Pivotally mounted locking member 36 is adapted for locking engagement with cage structure hl by bending central wire member 22 of cage structure IA inwardly to form a latching recess 34 into which locking member 32, when swung upwardly about its pivotal connection, may be sprung, due to its resiliency and that of the wire members constituting cage structure I4, to thereby lock cage structure I4 in lamp-enclosing posiw tion. When locking member 38 is positioned within recess 34, it will be appreciated that handle-embracing

members

26 and 28 are drawn toward one another so that these members are tightly clamped about end 8 of handle 2. In short, therefore, locking member 39 through its cooperation with recess 3%, serves two purposes, namely, that of locking cage structure Ill in its lamp-enclosing position and that of securing the guard to the handle. For this latter purpose, a lip 35 is preferably provided, as shown., about the upper extremity of handle end portion 3, lip 3G cooperating with embracing members Ell and 2S to prevent the removal of the guard from the handle when clamped thereto by virtue of a pulling force exerted on the guard longitudinally of the handle.

If it is desired to obtain access to lamp 9, to replace the same, it is simply necessary to spring the wire locking member 39 out of its recess 34 in central wire 22 and move it downwardly about its pivotally mounted ends 32 into the position shown in Figure 3. In this latter position, locking member 36 swings clear of the lower end of cage structure I4 so that the latter may be moved away from the reilector about its pivotally mounted ends IS into the position shown in Figure 3, that is, with the handle-embracing end of cage structure I4 swung outwardly away from the handleembracing end of reflector l2. In this particular position, the lamp and/or the entire lamp guard I0, if desired, may easily be removed from handle end 8. After the lamp has been replaced, cage structure I4 may again be swung inwardly about its pivotal mounting so that its handle-embracing portion, as well as that of reflector I2, is positioned about end 8 of handle 2 in the manner shown in Figures 1, 2 and 6 and locking member 30 this time swung upwardly from its position in Figure 3 and snapped into recess 34 of central wire 22. As previously noted, cage .structure I4 is thereupon securely locked in its lamp-enclosing position with guard I0 rmly clamped or secured about handle 2.

As will be appreciated from the foregoing, the lamp guard of the invention is unique in a number of features, most important of which is the provision of means pivotally mounted on the reector both for locking the cage structure in lamp-enclosing position in a. fashion which permits the cage to be easily unlocked and moved into lamp-access position as Well as for clamping the guard to the lamp-supporting handle simply and securely with the use of screws, bolts and other conventional fastening elements entirely done away with.

Having thus described my invention what I claim as new is:

A lamp guard having a two part segmental collar arranged to be clamped to a lamp holder, one of said parts having a concave lamp reflector extending outwardly therefrom and provided with a closed curved top portion, the other of said parts having a wire cage provided with spaced longitudinally extending wires, one of said wires extending centrally of the cage and terminating in a hook portion, a curved transverse Wire connect ed to said longitudinal wires and provided with inwardly turned ends pivotally connected to opposite sides of said reector below said top so as to allow the cage to be swung in front of the reflector or to an out-of-the-way position, and a curved retaining member pivotally connected to the reflector above said two-part collar and arranged to be moved into releasable locking engagement with said cage so as to clamp the segmental portions of the collar to the lamp holder and to maintain the cage in a fixed position in front of the reflector When the parts are assembled, said wires being curved so that the cage may be swung about its pivots above and over the reector.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 1,315,494 Heinrich Sept. 9, 1919 1,958,222 Wilson May 8, 1934 2,265,830 Woodhead Dec. 9, 1941 2,533,812 Jones Dec. 12, 1950 2,608,643 Day Aug. 26, 1952 FOREIGN PATENTS Number Country Date 26,911 Sweden Feb. 11, 1908