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Publication numberUS2432366 A
Publication typeGrant
Publication dateDec 9, 1947
Filing dateMay 21, 1945
Priority dateMay 21, 1945
Publication numberUS 2432366 A, US 2432366A, US-A-2432366, US2432366 A, US2432366A
InventorsAnderson Emery A
Original AssigneeAnderson Emery A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Knockdown back rest
US 2432366 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

E; A. ANDERS-ON Dec. 9, 1947.

KNOCKDOWN BACK REST v Filed May 21, 1945 X Inuentar E40 r zdego'vr' 1 J r 37 9 95 By -mas Patented Dec. 9, 1947 UNITED STATES PATENT OFFICE 2,432,366 KNOCKDOWN BACK REST Emery A. Anderson, Norman, Okla.

Application May 21, 1945, Serial No. 594,921

2 Claims. 1

This invention relates to a back rest for attachment to a bedstead and has for an object to provide such a device which may be quickly knocked down and collapsed into a small space for transporting in a satchel or other case.

Another object of the invention is to provide a knock-down back rest which may be very quickly set up for use.

A further object of the invention is to provide a back rest, the members of which are secured in operative position by a slip or fabric back supporting case.

A still further object of the invention is to provide an extremely simple yet efiective and comfortable back support formed of few separable and inexpensive parts for use of readers, invalids, or others who may lounge rather than lie flat upon a bed.

Other features and advantages will become more readily apparent from the following description and the accompanying illustrative drawings in which:

Figure 1 is a perspective view of my invention, shown in operative position.

Figure 2 is a perspective detail view of one member of my device,

Figure 3 is a perspective View of certain members of the device shown disassembled, and

Figure 4 is a vertical sectional view of Figure 2.

In the above enumerated drawings and in the following description of my back rest the same reference characters in each indicate the same parts wherever used and in which l0, indicates my knock-down back rest set up and in position for use upon a bedstead I I; This invention consists of a pair of upright bars 12 and I3, adapted to be held spaced apart by a round it, the ends 55 and it, of which are provided with reduced dowel pins I! and I8, which in turnare adapted to frictionally seat in bores l9 and 2G, in the facing sides 2| and 22, of said bars. While the dowels fit tightly into said bores, yet they are easily removable.

The bars l2 and it, are also provided each with opposing spaced apart smaller bores 23 and 22, and. 23 and 2d, respectively, adjacent their lower ends through all of which latter bores a cord 25, is threaded for a purpose which will presently be stated.

I also provide a slip-on casing 26, formed of any suitable fabric or other material for the purpose and which is flexible but not elastic, the purpose of which is to slip over the upper ends 2'! and 28, of the bars l2 and E3, and extend down to about the round It. This slip forms the double function of a back support and means for preventing the spreading apart of said upper end 21 and 28, of the bars when the device is assembled.

Below the bores 19 and 29, there is provided in each of said bars semi-cylindrical grooves 29 and 30, in the outer faces 3i and 32, of the bars which grooves are adapted to engage a rail 33, of a bedstead l I. The lower terminals 34 and 35, of the bars I2 and 13, are cut on their inner faces 36 and 31, as indicated clearly in Figure 3, of the drawings to engage the end rail 38, of the bedstead, the shoulders 39 and 49, formed by said cut-outs providing stops to prevent slipping down of the device.

The elements of the invention having now been set forth in detail, I will briefly state the mannor of its use. First, the dowels I! and I8, are placed in the bores 19 and 20, of the bars l2 and i3, then the case 28, is slipped on over the upper ends of the said bars, after which the cord 25, (which may at all times remain threaded through its bores) is drawn as tight as possible and its ends 42 and 43, tied. The device is set up for use and may be attached to the bed as indicated. As this back support is practically flat and requires very little space it may remain set up, except for transportation purposes and when space is to be considered in which case the knot 44, is untied, the round It, removed and placed parallel with the bars, the case being used to wrap said members closely together and the cord used to tie the members in the knocked-down and collapsed condition. The corners i5, 46, 41 and 48, of the bars 52 and iii, are preferably chamfered in order to obviate cutting edges.

It is thought that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the invention after considering the description in connection with the drawings. Therefore, a more lengthy description is regarded as unnecessary.

Minor changes in shape, size and rearrangement of details and parts such as come within the purview of the invention claimed may be resorted to, in actual practice, if desired.

Having now described my invention, that which I claim as new and desire to procure by Letters Patent is:

1. In combination with a bed having a pair of vertically spaced horizontally disposed rails, a knock-down back-rest therefor including a pair of spaced vertically arranged frame members provided with aligned apertures formed transyerseiy through their central portions and having their lower ends notched to provide transversely aligned supporting shoulders engaging one of said rails, a round having reduced ends received in the aligned apertures, and providing shoulders engaging the sides of said frame members and forming fulcrums therefor, a flexible slip-on casing on the upper ends of said frame members, a draw cable secured to the lower ends of said frame members below said round for drawing in on said lower ends to cause the upper ends thereof to move outwardly to hold said slip-on casing in fixed position thereon, and transversely aligned bearing grooves in the rear edges of said frame members engaging the other of said rails for supporting the back-rest in operative position upon the bed.

2. In combination with a bed having a pair of vertically spaced horizontally disposed rails, a knock-down back-rest therefor including a pair of spaced vertically arranged frame members provided with aligned apertures formed transversely through their central portions, a round having reduced ends received in the aligned apertures, and roviding shoulders engaging the sides of said frame members and forming fulcrums therefor, a flexible slip-on casing on the upper ends of said frame members, a, draw cable secured to the lower ends of said frame members below said round for drawing in on said lower ends to cause the upper ends thereof to move outwardly to hold said slip-on casing in fixed position thereon, transversely aligned bearing grooves in the rear edges of said frame members below said aligned apertures engaging one of said rails, and cut-out shoulders formed at the front of the lower ends of said frame members engaging the other of said rails, whereby said back-rest will be supported in operative position upon the bed.

EMERY A. ANDERSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 815,190 Marchessault Mar. 13, 1906 1,422,915 Benson et al July 18, 1922 1,312,774 Barrett Aug. 12, 1919 470,255 Petrie Mar. 8, 1892 1,219,437 Butler Mar. 20, 1917 2,107,880 Wilsdorf Feb. 8, 1938 1,539,082 Fyler May 26, 1925 820,125 Pennington May 8, 1906 1,156,125 Ahlborn Oct. 12, 1915 787,068 Bispham Apr. 11, 1905 2,137,312 Thompson Nov. 22, 1938 1,484,981 Brenninger Feb, 26, 1924

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US470255 *Oct 27, 1891Mar 8, 1892 Sea-side seat
US787068 *Oct 21, 1904Apr 11, 1905Elizabeth Casey BisphamKnee rest or support.
US815190 *Jul 21, 1905Mar 13, 1906Charles E MarchessaultFolding-seat back.
US820125 *Oct 31, 1905May 8, 1906William J PenningtonStair-chair.
US1156125 *Apr 25, 1914Oct 12, 1915Mattie E AhlbornHead and back rest.
US1219437 *Aug 18, 1915Mar 20, 1917Henry E ButlerFolding back-rest.
US1312774 *May 14, 1919Aug 12, 1919 The columhia planooraph
US1422915 *Oct 26, 1920Jul 18, 1922Bruce George KVentilated automobile driver's seat
US1484981 *Jun 24, 1921Feb 26, 1924Breninger Dayton CSupport
US1539082 *Apr 19, 1923May 26, 1925Fyler Annie MInvalid's foot brace
US2107880 *Jun 21, 1934Feb 8, 1938Nu Line Mfg Company IncPortable seat
US2137312 *Apr 29, 1938Nov 22, 1938Thompson Leonard JStadium seat
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3129975 *Sep 18, 1962Apr 21, 1964Better Sleep Mfg CoHead rests
US5768724 *May 15, 1997Jun 23, 1998Buell; V. DonaldModular RV furniture and method
Classifications
U.S. Classification5/633, 297/250.1
International ClassificationA47C19/00, A47C19/02
Cooperative ClassificationA47C19/022
European ClassificationA47C19/02B2