US 2639442 A
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May 26, 1953 'E. HERZOG 2,639,442
' BED, ESPECIALLY A CAMP BED Filed Jan. 12, 1949 2 Sheets-Sheet 1 uvvavroe: EDUARD HERZOG A T TOPNE May 26, 1953 E. HERZOG 2,639,442
BED, ESPECIALLY A CAMP BED Filed Jan. 12, 1949 2 Sheets-Sheet 2 rig y l l nvvcw TQR: 500/100 HERZOG B /(A. A
AT TOPN V porting cloth or supporting surface 2 serving Patented May 26, 1953 UNITED. STATES PATENT OFFICE Eduard Herzog, Zurich, Switzerland.
Application same, 1949, Serial No. 70,559
In Switzerland January 18, 1948 The present invention relates to a bed, and especially a camp bed, which consists of astand with a supporting material stretched on it and serving to lie thereon. In use,- such beds are generally set up in the open when camping in tents or suchlike, and the person using the bed is preferably enveloped in a sleeping wrapper stuffed with down or in a sleeping sack, and lies in this on the bed. The use of such sleeping equipment entails the risk of catching cold, because the heat protection given by the sleeping wrapper is insufficient, since particularly the part of the heat-protecting filling of the sleeping wrapper which is below the body of the reclining person, is pressed together into a thin layer by the weight of the body, the heat insulating" layer below being consequentlytoo thin. Further, such beds have the disadvantage that the supporting material, after it is become slack from long use, can only be tightened with difficulty.
The purpose of the present invention is essentially to eliminate this drawback in that, underneath the supporting surface of the bed, aheat insulating means is arranged in the form of at least one insulating layer which is relieved from the weight of the persons body, and in that the supports of the tubular members or carriers on which thesupporting surface is stretched are adjustable in width and also fixable;
Further features of the invention appear from the claims, specification and drawing, in which two forms of embodiment of the invention are illustrated by way of example. Fig. 1 shows diagrammaticallya'part; of a camp bed according to the first form of embodiment, in perspective'and partly in sectional view;
Figs.'2 to 4 .illustrate, in section, three modificationsof heat insulating; f v Fig; 5 .is a longitudinal, part sectional view of a camp bed according to theinvention incorporating a fourth modification of heat insulation;
Figs. 6 and '7. are large-scale longitudinal sec tional views of details of the camp bed according to Fig. 5.
Like parts are designated by like numerals'in all figures of the drawings.
The stand of the bed comprises, two parallel tubular members or carriers 1, on which the supreclining surface is fixed. The fundamental conception underlying the invention consists in that, below the supporting cloth 2, a heat insulating means in the form of at-leas't one insulating layer is applied, which is relieved from the weight of the person lying on thesupporting surface 2. The insulating layer may'consist of air spaces or stufled cushions and thematerial supporting the layer consists of cloth "which increases the heatinsulating efiect of the 9 Claims. (01. 5-112) 2 According to the simplest form of embodimen as shown in Figs. 1 and 2, a single layer of air 4 is arranged under the supporting surface 2, i. e. between the supporting surface 2 and a cloth 5. The arrangement chosen here is such that, at the place where the-edge 2b of the supporting surface 2 led round the tubular member I is sewn, a strip 6 of cloth, leather or the like is sewn on with it. To this strip 6 the layer support or cloth 5 is either firmly connected by sewing or, as indicated in Figs. 1 and 2, detachably connected, for instance by a press-button or snap fastener l.
The heat insulating thus given by the air space 4 remains in its shape and action quite unaffected by the weight of a person reclining on the supporting surface 2.
In the modification shown in Fig. 3, an air space 4 is arranged under the supporting surface 2 and-above a supporter 5, made for'instance of rough-faced cotton such as beaverteen or the like, and below it a further air layer 8 above a cloth support 9 metallized inside and outside, the metallized surfaces acting reflectingly. In this way the heat rays emitted from the body are thrown back at the reflecting inner surfaces, whilst the heat given off to the reflecting surface by convection isprevented by the reflecting surface from radiating away. In order to ensure the necessary air circulation, a longitudinal strip 9a of the metallized cloth layer 9 can be made pervious to air, by the cloth 9 not being metallized there. Also in this form of embodiment the cloth lengths 5 and 9 may be connected singly or together with the supporting surface, and either fixed or detachable. t
' In the form according to Fig. 4, in orderto render the metallized cloth 9 pervious to. air, holes ID are provided which may be surrounded by eyes I I. In order todissipate the jets of entering air, a piece of cloth may be provided sewn on to the layer 9 over the holes I0, I I in such a way that a small air space [2 is formed between the support 9 and the piece of cloth.
In the modification shown in Fig. 5, heat insulation is arranged under the supporting surface 2"in the form of three insulating spaces, oneof them being a stuffed cushion l3 and the other two air layers 4 and IS. The cushion may then be filled with suitable material such as down, for instance, and be sewn as a fixed whole to a lateral continuation 2b of the supporting surface 2 or it may, together with the cloth length l4, be detachably connected at both sides to the supporting surface 2, for instance by a zipor pressbutton connection, as indicated .in Fig. 2. Also the whole cushion, consisting of the carri'ers 5, 5a and [4, may itself consist of parts detachable from each other.
It is preferable for the supports or carriers forming the insulating layer to be made if'possible of cloth resistant to weather anditself also 3 insulating. Thus in particular the length of cloth that comes lowest of all, may be made of ticking or rug-like material, if it is not metallized.
The heat insulation may of course consist of any kind or combination of the separately described and illustrated forms of embodiment; Thus, for instance, the cloth support 8 .(Figs. 3. and 4) may be metallized on one side only, preferably inside. The reflecting action or the cloth:
support 9 may also be obtained by other means. say by a plastic coating, with or without mirror action.
The action of the equipment per the invention is now essentially that the sleeping covering pressed together by the weight of the body and thus forming a poor protection against cold over the respective surface together with the supporting surface 2., is supplemented by an insulation which prevents the admission of coldair or the radiating away of the entrapped heat.
When detachable'connections are used, the supports 5, a, 9, hi can be separated in a. simple manner from the supporting surface by means of the slip fastener or pressbutton closure, and stowed away, for instance rolled up.
In the embodiment of the invention illustrate in Figs. 5 to 7, each transverse support of the tubular members l is formed of two tubular members 30:, 3b having horizontal end portions telescoped one within the other. The large diameter member 3b has, along two diametrically opposite generating lines, a row of holes 18, whilst the inner tube 311 has only two such holes 1'. near its end. A bearing body it is fixedby a screw IS in the inner tube, in such a way that the axis of a transverse bore rem'sters with the axes-of the two opposite holes ll. Two oppositely radially movable pin members 21 are carried by the body 4 The invention is not confined to the illustrated embodiments; it may be adopted for all kind of beds, such as couches, sleeping sofas, and suchlike reclining furniture, in cases where the conditions recited at the beginning prevail.
. and also in a lower cost of construction as compared with that of similar conventional beds, further in'the adjustability of the camp bed supports for the purpose of tightening the supporting surface of the bed when it is in use, and of slackening it when not in use. A further adt vantage resides in the fact that the supports can be packed in a smallspace for transport.
What I, claim is; g
l. A. campbed comprising. side rails, a flexible support sheet carried by and between said rails and adapted to support the entire weight. of the body of the person resting on the bed; a plurality of additional flexible sheets disposed beneath said support sheet in spaced relation to one another and to said-support sheet; a plurality of trans- H3 in. bore 20: and pressed away from each other and outwards by .a coil spring 22. Members 2! have tapered end surfaces 23, which abut against the edges of opposite holes 16 in. tubular member 311 for retaining the pin assembly 21, 22 within member 31). Members 2i project sufficiently from the holes it so that the pin means can be axially compressed by hand if. the tubes and 3b must be separated. A bore 24 with cut-in screw thread makes it. possible, by screwing in a bolt, to insert and to withdraw the bearing body together with the pin means, if the securing screw it is loosened.
The purpose of the compressible pin means 2A is to facilitate selective engagement of a suitable pair of holes H3 or the outer tube 311 for adjusting'the length of the transverse support members and thereby the distance between the side rails i.
As an additional fixing device, the outer tube 3bhas longitudinal slits 2.5 at its end which is provided with. a tapered external thread 25 fitting into a tightening; nut 21. By tightening the nut 21, the tube end 28 is pressed against the inner tube: the connection is released by loosening the nut 21.
.. Manipulation of a camp bed with the described supports is very simple. After loosening the tightening nut 21, the. ends of the pin means projecting from the tube 3b are manually pressed inwardly, whereupon the two tubes 3a,. 3b, after larger diameter member.
overcoming a certain resistance, can. be moved verse support members; each of saidv support members comprising two tubular members; each of the latter having a substantially horizontal end portion and an. upright portion. having an end connected with one of said side rails, at least the horizontal portion of one of said members havinga larger diameter than that of the other member for telescopingly receiving the horizontal portion of the other member, aplurality of axially spaced holes placed pairwise in diametrically opposite. position in said larger diameter member and tapering from the inside to the outside thereof, and an. axially compressible pin means diametrically positioned the smaller diameter tubular member and having tapered end portions extending into the. diametrically opposed; holes in said larger diameter member: and adapted to be retracted from said holes upon compression of the pin means.
2. A camp bed as. defined in claim 1, said smallor diameter member having a plug. member inserted therein, a hole extending diametrically through said plug member and through. said smaller diameter member for slidabl'y receiving said pin means, the latter comprising two thimblelike members 'telescoped into each other within said plug member and a coil spring within said thimble-like members for forcing them. apart and into the diametrically opposed holes of the 3. A camp bed as defined in claim 1, said larger diameter member having a substantially axially slitted end portion, a tapered thread at saidend portion, and a nut screwed thereon for pressing said end portion radially against. the smaller diameter member. EDUARD HERZOG References Cited in the file of this patent UNITED STATES m'mn'rs Number Name Date 289,584. Vance. Dec. 4, 1883 411,015 Dick Sept. 15, 1839 1,280,845 Winder Mar. 26, I918 1,851,499: Edwards Mar. 29, 1932 FOREIGN PATENTS Number Country Date.
58,808 Norway Jan. 10, 1938 322,056- Great Britainv Nov. 28, 1929 477,435 Great Britain Dec. 30, 193.7