US1989324A - Collapsible cot - Google Patents

Description

M. LEVINE COLLAPSIBLE GOT Jan. 29, 1935.

Filed May 15, 1953 fie; 1604726 mm 07 2, I

Patented Jan. 29, 1935 Mac Levine, Brooklyn, N'.'Y.' H Application May. '15, 1933 Serial No.'671,0l6

1 Claim. (o1; 1'1 1 a The subject ofgthis, invention is a collapsible eotwhich among other advantages comprises but few repeatedly used standard-partsand is hence inexpensive to manufacture; whose "bottom-is made up of-coil springs like those used inthe bottom of a comfortable regular bed; which-can be collapsed to occupy a small compass, so'that it can be easily and inconspicuously stowed away in a closet or in a corneriwhen not in use; which is comparatively lightand easy to handle; which can be collapsed and opened up quickly-and with but a-minimum of exertion; and which is sturdy and neat of appearance. ,p

Generally stated, the cot; ofv the present inventionconsists of .a-pairtof frame sections of sub stantially; equal length,- pivotally tied together, each frame section having associated therewith a coil spring bottom and a pair of collapsible legs, the construction and arrangement of the sections being such that they can be readily folded over each other with the coil springs of one section fitting in the spaces between the coil springs of the other and the legs of the two sections collapsible to positions in between the sections.

With the foregoing and other features and objects in view, my invention will now be described with particular reference to the accompanying drawing, wherein,-

Figure 1 represents a side view of a collapsible cot embodying the present invention in both open and collapsed positions, the collapsed position being indicated by dotted lines, and, for the sake of clarity, being shown without the bottom coil springs.

Figure 2 is a plan view of the cot.

Figure 3 constitutes a section on the line 33 of Figure 1.

Figure 4 illustrates a side View of the cot in collapsed condition.

The frame-work of the cot, including its legs, can be built up from any suitable or standard bar stock, that shown being angle iron which affords the desired sturdiness at low expense. As already indicated, the cot is made up of a pair of frame sections indicated generally at 1 and 2. The sections are of substantially equal length and together define a bottom frame which, as appears in Figure 2, is of substantially rectangular form. At the inner ends of the longitudinal bars 3, 3 and 4, 4 of each section are short tie or bridge pieces 5 to which such ends are pivotally secured, thereby rendering the sections collapsible from their normal tandem relationship to a collapsed and parallel side-by-side relationship, as depicted in Figure 1.

:-'Each of the sectionsis provided with a pair of legs 6 which arezpivotallysecured to the bottom frame adjacent toits outer ends and which can be collapsed upon the collapse of the cot' soas to lie in between the ,collapsedsections in substantial' parallelism therewith, as appears inFlgure 1. These legs are preferably associatedpwitn means automatically operable upon'the: collapse of the cot to collapse them also. Such means-as shown takes the form of a'link 7 for each leg, each link being pivotally securedat its inner end to the corresponding piece5 and at'itsouter end ately next to it so that danger of bendingor otherwiseyinjuring the link is-minimiz ed. It is Pl in t t e li k readen ed to; a a m e cally upon the collapse of the sections "to collapse the legs in between the collapsed sections in substantial parallelism therewith, as previously explained. In order to stop the pivotal movement of the legs when the sections are in normal, tandem relationship, the legs may have stopping lugs 8 thereon adapted to abut against the longitudinal bars'when the sections are in this relationship. It is preferable that such stoppage occur with the legsof the two sections inclined to diverge somewhat from each other, as shown in Figure 1, so that there may be no tendency for collapse of the cot to take place while it is in use.

The bottom of the cot is afforded by coil springs suitably supported and tied together to permit of collapse into a small compass, as previously stated. To this end, spaced U-shaped bars 9 are suspended from and span perpendicularly the longitudinal bars of each section, as best shown in Figure 3, to which they may be riveted, welded, or otherwise suitably secured. Each bar serves as a truss or support for a row of coil springs 10 whose lower ends may be threaded therethrough and headed thereover or otherwise suitably fastened thereto. The spanning portion of pieces 5 may also have suspended therefrom a central U-shaped bar l l, like the others 9, carrying a central row of coil springs whose upper ends are clipped to a rectangular wire frame 15, with the ends 13a of the U-shaped frames 13 being bent loosely about the frame 15 so as to permit collapse of the frame sections. The frame sections 3 and 4, the wire frames 13 and the frame 15, and the upper ends of all the coil springs lie substantially in a single plane to afford the bed bottom as a whole. It is thus seen that when the cot iscollapsed, the wire framework is continuous in the sense that it'does not show a break or division. The spacing or arrangement of the bars and. coil springs in the two' sections is such that with the sections col.- lapsed to a parallel side-by-side relationship, as illustrated in Figure 4, the bars and springs and the horizontal cross braces for the legs inone, section are received in the spaces between'the .This.

' center of the cot, which legs may assume the form of a U-shaped bar 170 whose upper ends are rigidly secured to the pieces and whose base portion lies in thesame plane with the lower ends of the legs 6 when the cot is opened as shown in Figure 1. This central support for the cot serves to keep it from'tending to sag centrally even when subjected'to ruggedservice or put to an-undue stress on the legs 6. The central support extends between the sections when they are in collapsed, parallel side-by-side relationship, as illustrated in Figure 4. Suitable means for locking the two sections in collapsed relationship may be provided, as in the form of 'a hook 17 in swivelled engagement with one of the frame sections and adapted to engage a pin or catch 18 on the other section.

I claim:

A collapsible cot comprising a pair of frame sections of substantially cqual'lcnzth forming as a whole'a substantially rectangular frame, pieces bridging the inner ends of the longitudinal bars of said sections and to which said ends are pivotally secured so as to render said sections collapsible from their normal tandem relationship to a jside-by-rside relationship, spaced U-shaped bars suspended from and transversely spanning the longitudinal bars of each section, and rows of coil springs supported at their lower ends by said bars and tied together at their upper ends to form the cot bottom, the-arrangement of-said bars and springs in the two sections-bemgsuch that with the sections collapsed to aparallel side-by-side relationship the bars andsprings in one section are recelvedin the spaces between the bars and springs in-theother section, said cot further includinga U -shaped bar suspend-- edfrom and-spanning said pieces, a; central row of coil springs supported their lower ends by said bar, U-shaped frames to which the 'upper ends of border springs of each section are secured, and-a rectangular wire frame to which the upper ends of said central-row of said coil springs are secured, the ends of said U-shaped frames being loosely bent about said rectangu lar frame to permit the collapse ofseid'sections.

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