US1801248A - Bed construction - Google Patents

Description

J. W. SHAW A ril 14, 1931.

BED CONSTRUCTION Filed May 26, 1926 2 Sheets-Sheet l amen tor John W. 5 h aw.

April 14, 1931.

J. w. SHAW 1,801,248

BED CONSTRUCTION Filed May 26, 1926 2 Sheets-Sheet 2 lh. "111.1 mg k- 'I 0 .30 ml 7 i .h. f/ 7/ 4% :9"

M M j "In I E wentoc TL W. figaw.

M M M Patented Apr. 14, 1931 PATENT OFFICE JOHN W. SHAW, F NOBWOOI), NEW JERSEY BED CONSTRUCTION Application filed Kay 26,

This invention relates to improvements in collapsible bed constructions.

It is an object of the invention to provide a collapsible bed, which is conveniently extended from collapsed position, without the need for thereafter first making up the com panion bed sections or either of them, and which in the extended as well as in the collapsed state, affords all of the comfort of i0 superior constructions of non-collapsible beds.

Another object is to provide a collapsible bed which imposes norestriction on the thickness of approved spiral or box-springs and mattresses employed therewith, and which in extended condition, will afford a normal height of bed without unduly, if at all, increasing the overall height of the collapsed bed.

Another object is to provide a bed of the above type in which the companion bed section is securely sustained in collapsed state of the bed, directly upon rigid structure therebelow.

Another object is to provide a bed of the type noted, which may be collapsed or extended by a single simple manual operation involving little eflort, though the bed he of heavy construction. i

In a preferred embodiment, I carry out the objects noted, by the use of a collapsible bed of that general type in which a companion or extension section is moved from collapsed to extended position by a parallel motion in a curved path and in which the bed spring of the main frame is automatically operated from the parallel motion linkage to rise from a lower inobtrusive position to substantially the level occupied by the companion bed spring in fully extended position.

With a thick couch portion including either or both a thick spiral bed spr ng and a superposed thick mattress, were the companion couch portion superposed on top of the upper- 1926. Serial No. 111,828.

most level of the main couch portion, the collapsed bed would be unduly high.

To dispose the companion couch portion at low level in the collapsed bed, the main couch portion must rise in the extended bed to oc- 30 cupy part or all of the space previously vacated by the companion couch portion in its traverse from collapsed state of the bed. Where the extension of the companion couch and the rise of the main couch occur simultaneously, in a single operation, it becomes important to so inter-relate the movements that clashing between the edges of the couch portions is avoided at all parts of the extension and of the collapsing movement. According to my invention, the gap between the two springs exceeds the thickness of mattress and made-up bedding on the main spring, not only-in the collapsed setting of the bed, but throughout the transit of the upper over the lower spring in the shifting movement t collapsed or to extended position.

In a preferred specific construction according to my invention, the parallel m'otion linkage is arranged to effecta lateral displacement of the companion couch portion in movement from fully collapsed to fully extended position, through a range substantially greater than the width of either of the beds. The result is thereby accomplished not only of affording the required clearance in the movement past each other of thick and previously made-up couch portions, but in addition the extended position affords a pair of twin beds rather than a single bed of double width, said twin beds spaced apart sufficiently for the maid to step therebetween to tuck in the bedding, in making up the two bed sections prior to collapsing the construction.

Other objects and advantages of this invention will be apparent during the course of the following detailed description.

In the accompanying drawings, forming a part of this specification, and wherein simi lar reference characters designate correthe improved eludes the end supports sponding parts throughout the several views,

Figure 1' is a bed constructiom: showing the two movable bed-frames in an extended relation to provide a bed construction, the sections of which simulate twin beds.

Figure 2is an end view of the operating mechanism of the improved bed construction, showing the collapsed superposed positioning of the movable bed frames;

Figure 3' is an end elevation of the bed construction, showing the operating mechanism in its half-way open position with the bed sections half way opened.

Figures 4 and 5 are cross sectional views taken substantialy on their respective lines in Figures 2 and 1 of the drawin s.

In the drawings, wherein for t e purpose of illustration is shown only a preferred embodiment of this invention, theletter A may generally designate the improved 'bed construction, which may comprise a main or stationa frame B, to which lower and upper mova le bed frames C and D are connected by operating mechanism E.

Referring to the main frame or stationary frame B, the same at each end of the bed in- 15, which are preferably formed of angle metal bent into U-shaped formation, to provide a top bar 16, having the supporting legs 17 and 18 which extend in parallel relation. These end supports 15 are preferably connected by horizontal side rails 18 and 19, connected at-the lower ends of the legs 17 and 18, and extendin in parallel relation along opposite sides of t e bed, as can readily be understood. The end supports 15 furthermore each preferably comprise a lower cross bar 20 secured in any a proved manner at its ends to the lower en s of the legs 17 and 18, to rigidly brace the same, or these end cross bars 20 may be suitably connected to the rails 18 and 19, in any approved manner,

to provide a substantially rectangular shaped floor structure for the frame, to which the end supports 15 are connected at the lower ends of the legs 17 and 18. As can readily be understood from the drawings, guide rails 21, preferably of straight line formation are connected at the outer sides of each of the legs 17 and 18, and vertically extending from the lower ends of said legs to adjacent the top bars 16, the same preferably being arcuated in cross section to serve as guide rails for the movement of the movable frame 0, as will be subsequently described. I

As a reinforcing means and to facilitate connection of parts of the operatingmechanism E, each of the end supports 15 of the main frame B comprises a vertical reinforced bar or member 25, connected at its lower end at 26 to the cross bar 20, and at its upper end being connected at 27 to the top bar 16, as is illustrated in Figure 1 of the drawings. This fragmentary end elevation of vertical bar 25 is mounted parallel with the is preferably disposed between said legs,

closer to the leg 18 than thebther leg 17, that is, the same is disposed close'r'zto that side of the main frame from which the upper movable bed section C extends when the bed is opened. Furthermore, the end supports 15 ;the floor across bar or-member 20 than the top support bar 16, as is illustrated in Figure 1 of the drawings. v

The movable frame C may be termed the inner far lower or movable frame, and it comprises the end rails 30, connected by the 1011- gitudinal side rails 31 and 32; the frame C bein adapted to slide vertically without tipping from a horizontal plane. The end rails 30 operate adjacent the insides of the stationary frame end support 15, and the longitudinal side rails 31. and 32 are so connected therewith that they extend outwardly beyond the planes of the end frame su ports 15, and thereare provided with suita le to tatable rollers 33, which roll over the guide tracks 21, which are preferably arcuated in cross section to accommodate the groove of the rollers 33, as can readily be understood. The movable frame C of course has the rail construction thereof so formed as to receive a mattress, and conventional bed springin for the mattress preferably of the approv spiral spring type shown, and the same is movably supported for vertical extension by part of the operating means E to be subsequently described.

The other movable frame D may be re ferred toas the upper or outer or companion movable frame, and this comprises the end rails 37 and 38, connected by the ion ' tudinal side rails 39 and 40, in any approve relation of parts to receive conventional bed spring material, and mattress identical with those of the main frame. K

The horizontal support for the occupant 25, and at its opposite end legs 17 and- 18 of the end supports 15, but

of the bed including'the bed spring I have designatedin certain of the claims as couch portionl.

The movable frame D is supported by part of the operating means E consisting of the parallel supporting bars or members 41 and 42, which at their upper ends are pivotally connected at 43 and 44 respectively to the ends of the frame D, it being understood that the pair of supporting bars 41 and 42 are similarly provided at each end of the bed. The supporting arms 41 are preferably connected at an end of each of the end rails 37 and 38, that is, at two corners of the bed frame D, and the other legs 42 are connected v at '44,, in pivotal manner, at points interme- I 'diate the ends of the end-rails 37- and 38', not

quite half way,.and closer to thepivotal connections 43 than the opposite side of the frame. At their lower ends the supporting ' bars 41 and 42 are pivotally connected at 46 Land 47 respectively to the outer ends of the short horizontal supporting bar or member 28, so that it can readily be understood that the supporting bars or members 41 and 42 are pivotally connected at their lower ends to one side of the longitudinal center of the main frame B, and at the upper ends of said legs are likewise pivotally connected to the upper frame D, to the opposite-side of the longitudinal center of the said movable frame D, so that. the movable frame D when in supported relation upon the top bars 16 of the end frame supports 15 is positioned 111' a horizontal plane thereover, with the legs 41 and 42 diagonally extended from their connection to the frame 1), across the ends of the main frame, for connection at 46 and 47 to the main frame B, in the relation of parts illustrated in Figure 2 of the drawings, and whereby upon lifting upwardly upon the movable frame D, by an operator pulling on the handles 50, it is readily apparent that the supporting bars 41 and 42 will enable an upward pivotal swing of the movable frame 1), without tipping the same from a horizontal plane; the supporting members 41 and 42- rst moving from the diagonal position at the end supports 15, to vertical position, and

thence downwardly beyond the main frame B, to a diagonal position for supporting the movable frame D in an extended horizontal position outwardly be 0nd a side of the main frame B, in position or use.

Each pivot connection 46 also preferably extends thru the vertical supporting member 25 of the end frame portion 15, and each leg 41 has an arcuated extension 50 at the op posite side of its pivot axis 46 from the end which supports the frame D, to which is connected a transverse extension 51, intermediate the ends of the extension 50, and in acute angular relation with respect to the supporting bar 41; the extension 51 havin a roller 55 at the end thereof adapted to roll upon the downwardly facing arcuated cam surface 56 of a. cam providing bracket 57 which is riveted or secured at the outerside of each of the main frame ends 15 in the relation of parts illustrated in Figure 3; the wheels 55 when the upper movable frame D is closed in a collapsed position upon the main frame B, as illustrated in Figure "2, being preferably in engagement with ends "same time that theother movable frame D is being extended, as is perfectl obvious.

To facilitate the opening an closing movements of the movable frames C and D, the free end of each bar extension portion 50 is preferably connected with oppositely disposed springsi60 and 61, preferably respectively connected by cables or chains 62%;and 63", with said free end of the extension ortion 50; said springs 60 and 61 preferably ying along the lower cross rail 20 at each end of the main frame, and of course at opposite sides of the pivotconnection 46 of the leg 41 said springs 60 and 61 .at their outer ends having threaded shanks 62 for adjustable engagement by nuts 63 in the lower, ends of the angle supporting legs 17 and 18 of the mainframe B. When the movable frames C and'D are collapsed in superposed parallel relation, as illustrated in Figure2 of the drawing, the extension portion 50 ofthe supporting bar 41 will have been so positioned as to tension the spring 60, and this tension may be varied by means of the adjustable shank and bolt means by which the said spring 60 is connected to the lower end of the main frame leg 17, as is obvious. In this relation of parts, with the movable frames collapsed, the spring 61 is likewise colla sed and not under tension. The spring 60 ue to the tension thereof when the movable frames 0 and D are collapsed, exerts its force in a tendency to swing the bed frame supporting bar 41 on its pivot 46, to move the movable frame D upwardly, and likewise due to the engagement of the roller 55 against the surface 56, to also move the lower movable frame C upwardly. This tension is slightly less than the force required trated in Figure 3, and at which position it is to be noted that the tension of the spring g 60 has been released-,-and the movement of the upper movable frame D from this position is downwardly, moving the extension 50 of the supporting bar 41 in an opposite direction, to tension the other spring 61, which due to the force required to tension the same bufis the shock of the extended positioning'of the movable frame D for positioning for use, in the relation of parts illustrated in Figure 1. movable frame D is extended 'for use the springs 61 are tensioned, and the tension of the same is exerted in an efiort to swing the extensi0n.'51 to an upward position, so that to collapse the bed frame D it requires little manual effort to lift the same upwardly and swing it to a collapsed po- Thus, when the sition, as is quite evident. It is to be noted that during the entire act of swinging of the movable frame D from a collapsed to an extended position, the rollers at the ends of the main frame act upon the shaft surfaces 56 to cause a lift of the other movable frame C to its horizontal position for use as illustrated in Figure 1 of the drawings, and in which position the frames C and D are in the same plane, but at their facing longitudinal edges they are spaced, to give a twin bed effect when the beds are made up, since it is intended that individual bedding shall be provided for each of the movable bed frames C and D, so that the same may be made up ready for use, and extended and collapsed at will, depending upon whether an individual or a dual use of the bed is to be made.

The lower movable frame 0 is of course provided with other support means than the operation of the roller on the cam surfaces 56, and this other supporting means consists in the provision of collapsible link arrangements and 66 at each of the frame ends 15; these collapsible link supports 65 and 66 consisting in the provision of lower section 67 pivotally connected at their lower ends on the base rail 20 of the frame ends 15. The said link constructions 65 and 66 also include upper sections 68 pivotally connected at their upper ends at 69 to the end rails 30 of the movable frame C; the proximate ends of the said links 67 and 68 being connected at 70 to each other, in such relation that the sections 67 and 68 of each of the collapsible link supporting devices 65 and 66 will swing into a substantially V-shaped .r'elation when the movable bed frame C is collapsed, and upon the extension of the movable frame C, said links 67 and 68 tending to more into vertical alignment,; but not quite being vertically aligned, for a reason which will more presently appear.

The means provided to lock the collapsible link devices 65 and 66 to hold the movable frame C in an extended horizontal position consists in the provision of a horizontal lock bar 75, at each of the ends of the main frame,

for the pair of collapsible links 65 and 66 disposed thereat, each of said lock bars 7 5 including horizontal slots 76 and 77 therealong v adapted to receive therein the extended ends of the pivot pins 70 of the collapsible link devices 65 and 66 respectively. At their outer ends the slots 77 are provided with downwardly extending right angled offsets 80, into which the extended offset ends of the pins 7 0 may ride when the links 67 and 68 of each of the link devices 65 and 66 are extended to their maximum relation; tension springs 82 being provided at each of the remote ends of the lock bar-7 5; said springs at their opposite ends being connected adjacent the upper pivoted ends of the respective link sections 68, so that as the links of the link devices 65 and 66 move to an extended position, the springs 82 will be gradually tensioned, for exerting an upward pull upon the lock bars 75, in order to force the offset recessed ends 80 of the grooves of the lock bars to receive the extended ends of the pivot pins 7 0 when the links of the link devices 65 and 66 are practically vertically aligned, as is illustrated in Figure 1 of the drawings, and thus to lock said link devices 65 and 66 in position against accidental collapsing, in order to hold and bear the entire support of the movable frame U when the same is extended, as is illustrated in Figure 1 of the drawings. The pivoted ends of the link 65 and 66 move towards each other when the frame C is being collapsed, and move away from each other when the movable frame C is being extended.

Means is provided to move the lock bar downwardly in order to disconnect the link devices 65 and 66 from their locked connection in the offset ends of the grooves 77, consisting in the provision of an arm or bracket 90 carried at the inner side of the rollerr 55, preferably by the pin which supports said roller, which is adapted to give a bracket extension 91, which is carried by the lock bar 75, a glancing blow as the wheel 55 is moved downwardly incident to the elevating of the movable frame I) from an extended to a collapsed position, and which glancing blow of the extension 90 on the extension 91 will cause the lock bar 75 to move downward'y against the tension of its springs 82, until the ends of the pivot pins 70 are removed from the offset extensions of the grooves 77, and then the frame G will fall downwardly until the arcuated surfaces 56 of the brackets '57 of said frame C again engage the rollers 55, which in the meantime have moved slightly downwardly. It is to be noted that the falling of the frame C immediately after the lock bar 75 has been released, is enabled, due to the fact-that the link sections 67 and 68 of each of the link devices 65 and 66 are not positioned truly in vertical alignment, but are illustrated in Figure 2 the operator merely lifts upwardly upon the handle 50, and due to the balance support of the frames C and D by means of the springs 60, the upward lift merely requires a slight manual effort, aided by the contraction of the springs 60, to move the frames C and D upwardly, without tipping them from their horizontal position.

When the supporting bars 41 and 42 are vertically aligned with the bed sections 0 and D in a half way open position, the section D falls downwardly and the section 0 continues to rise, and this begins to place the springs 61 under a tension to buff the falling action of the frame D, and the elevation of the bed frame 0 coming into extended position. The lower movable frame C has a guided relation by means of the rollers 33 operating on the vertical tracks 21, and in extended position the sections C and D are in the same horizontal plane.

It will be seen that in the movement of the companion frame from collapsed to extended position, the main couch portion C in- ,1

cluding the mattress and the spiral spring thereof is raised into the space vacated by the companion couch portion D. Throughout the transit of the upper or companion spring over the lower or main spring, the linkage, however, determines a gap between the springs, which exceeds the thickness of mattress and made-11p bedding on the main spring whereby clashing is avoided. The links lb-42 are of sufiicient length to just permit the lower left edge'of the companion couch portion to pass the upper right-hand edge of the rising mattress and made-up bedding on the main couch portion. The main and companion sections of the extended bed are readily made up, as readily as if the beds were separate and distinct, the maid conveniently stepping into the space between the two sections for tucking in the bedding. Thereupon, the companion bed section is raised and pushed inward by a simple single thrust and the bed collapsed without in any way deranging the made-up bedding. As in the extension movement previously set forth, the right lower edge of the extension spring would just clear the left upper edge of the mattress and made-up bedding on the main couch portion.

In the collapsed bed, the companion frame is supported securely at both its lateral edges upon the main frame portions directly therebelow and more specificallygupon the top bars 16 of the end frame supports 15. Thus, rattling and looseness is avoided, which may be incurred where the companion bed spring is supported by the linkage in a cantilever arrangement.

End boards 95 may be provided for the movable section D, to aid in the support and better appearance of the same, when extended,

and similar end boards 96 may be provided for the ends of the main frame construction B.

Various changes in the shape, size, and arrangement of parts may be made to the form of invention herein shown and described, without departing from the spirit of the same or the scope of the claims.

I claim:

1, A collapsible bed construction comprising a main frame, a bed spring movably caring said frames, and determining a translational movement of said companion frame in a curved path in the travel from fully collapsed to fully extended position, through a lateral range greater than the width of either of said springs,transmissionmeans connecting said parallel motion linkage with the spring of said main frame to cause the latter to move downward to inobstrusive position with respect to the superposed companion spring in the collapsed position, and to cause said main spring to be raised in the extension of the bed until it reaches a level common with that of the fully extended companion'bed, the difference in level between the two springs throughout the transit of the upper over the lower in the shifting movement to collapsed or to extended position, being greater than the thickness of mattress and made-up bedding on the main spring.

2. A collapsible bed comprising a main frame having a couch ortion movably mounted thereat and including a spring and a mattress, a companion frame having a couch portion including a spring and a mattress of the same width as that of said main frame, the lateral edges of the couch ortion of said companion frame in collapse condition of the bed being supported upon the corresponding parts of the main frame directly therebelow, linkage connecting said two frames and the couch portion of the main frame to cause the latter to rise into the space vacated by the companion frame as the latter is moved to extended position, until said main couch portion reaches a level common with that of the extended companion frame, said linkage determining a lateral displacement of the companion frame substantially greater than the width of either of said frames and affording clearance throughout in the movement of the inner lower edge of the companion couch portion with respect to the contiguous upper edge of the main couch portion, as the latter rises into the space vacated by the former.

3. A collapsible bed construction comprising a main frame including a couch portion movably mounted thereat and comprising a spiral bed springand a mattress thereon, a

' end structure, linkage connecting said par-.

posed couch portion, and to raise said main couch portion in the opening or extension movement of the bed, into the space vacated by the other couch portion and to an upper level common therewith in the extended position thereof, said parallel motion linkage determining a lateral displacement of the companion bed from collapsed to extended position throu h a range greater than the width of the ber i.

4. A collapsible bed construction comprising end structures and a couch ortion movab y mounted therebetween an having end rails and side rails, a companion frame having a couch portion with end rails and side rails of the same length and width as those of the main couch portion, parallel motion linkage connectin said frames together, to dispose said couc portions in superposed relationship with the rails of the companion couch portion sustained upon the tops of the allel motion linka e with the main couch portion to dispose t clatter at the lower part of-the main frame for clearance with respect to the companion couch portion, said linkage serving to lift the main couch portion as the companion couch portion is moved, to assume a common level with the com anion couch ortion in extended position, t e upper surace of the main couch portion in extended position of the bed being substantially above the lower limiting plane of the companion couch portion when the bed is in collapsed position, said parallel motion linkage determining a lateral displacement of the com panion frame from completellyirgollapsed to,

completely extended position t ugh a path greater than the width of either frame.

' 5. A collapsible bed construction comprising end'structures and a couch portion therebetween including a s iral bed spring and having end rails and side rails, a companion frame having a couch portion including a spiral bed spring and havin end rails and side rails o the same lengt and width as those of the main couch portion, parallel motion linkage connecting said frames together to dispose said couch portions in superposed relationship with the rails of the companion couch portion sustained upon the tops of the end structures, linkage connecting said parallel motion linka e' with the main couch portion to dispose t he latter at the lower part of the main frame for clearance withrespect to the companion couch portion, said llnka e serving to lift the main couch portion as t e companion couch porsition, t e upper sur ace of the main couch portion in extended position of the bed being substantially above the lower limiting plane of the companion couch portion when the bed is in collapsed position, said parallel mo tion linkage determining a lateral displacement of the companion frame from complete ly collapsed to completely extended position through a path greater ,than the width of either frame. v

6. A collapsible bed construction comprising a main frame having end structures and side bars, a couch part having end and side rails movably mounted on said main frame and including a spiral bed spring having the lengths of the spirals thereof extending below said rails, a companion frame having end and side rails and a spiral bed spring thereon of the same dimensions as that of the main frame and with the s irals thereof extending below the rails there or, parallel motion linkage connecting said frames, and linkage operated-from said parallel motion linkage and connected to the main couch part to move the latter upward within the frame during the extension movement of the companion frame, to dispose the rails of said main couch part at substantially the level occupied in collapsed position by the rails of the companion couch part, the parallel motion linkage determining a course of lateral displacement of the companion frame from fully collapsed to fully 7. A collapsible bed construction comprising a main frame having a couch portion movably mounted thereat, a companion frame having a couch portion, parallel motion linkage connecting said frames, disposing the couch portions in superposed relation in col-- lapsed condition of the bed, with themain .couch portion depressed below the companion couch portion, said linkage being constructed and arranged to elevate the depressed couch portion during the extension of the bed to substantially .the level of the companion couch portion in (collapsed position, and

vautomatic latch means for locking the maincouch ortion in its uppermost position when the bed is extended, and arranged to be automatically tripped as the bed is collapsed.

8. A collapsible bed construction comprising a main frame having a couch portion movably mounted thereat, a companion frame having a couch portio arallel motion linkage connecting said fr es, disposing the couch portions in superpo ed relation in collapsed condition of the tion is moved, to assume a common level with the com anion couch ortion in extended pod, with the com anion portion supported at its lateral edges y the main frame parts directly therebelow,

and the main couch ortiondepressed below the companion couc portion, said linkage being constructed and arranged to elevate the depressed couch portion during the extension of the bed to substantially the level of the as substantially companion couch portion in collapsed. osition, and automatic latch means for loc ing ing a main ed frame having a head board and a foot board and including a main bed spring movably mounted thereon, a companion bed frame having a head board and a foot board and including a bed spring thereon parallel motion linkage connecting said frames for outward and inward movement of the companion frame respectively to'extended and collapsed setting, a bed spring for said companion frame, a bed spring for said main frame, said latter spring in collapsed setting of the bed being below the lower part of the companion bed spring by-an interval I sufficient to-accommodate a mattress thereautomatically as the companion frame is moved to extended position, the head and foot boards of said companion bed section susv taining the same upon the floor when in extended position, said companion bed frame supported at both lateral edges in collapsed pos tion by the main frame parts substantially directly therebelow, said main bed frame affording space between the end boards and the linkage to accommodate the head and foot boards of the companion bed section in collapsed position. l

10. In a bed construction the combination of a main frame, a movable bed section, an arm pivotally connected to the bed section and pivotally connected to the main frame to permit collapsed or extended positioning of the bed section with respect to the main frame, said arm having an extension thereon. at the opposite side of its pivot from the main frame, springs, means connecting said springs at their outer ends on the frame at opposite sides of the pivot connection of the said arm on the main frame, means connecting the inner ends of said springs to the extension of said arm in such relation that one of the springs will be tensioned when the bed section is swun the other spring will be tensioned when the bed section is swung to the opposite side of the pivot of its arm, a second bed section movably mounted on the main frame for rise and fall thereon, and cam means carried by the second mentioned bed section and by the extension of the arm of the first mentioned bed section for causing a synchronous extended and collapsed movement of the said bed sections.

11. In a day bed construction the combination of a mam frame, a bed section movably mounted within the main frame, spaced collapsible link devices at each end of the main to one side of its pivot and" we at tion with respect to the main frame, including a lock'member, means operated by the extension of said link devices to bring the lock member into locking operation with said link devices, a second movable bed section, means movably connecting'said bed section on the main frame, means carried by the last mentioned means for operation on the first mentioned bed section to cause synchronous movement thereof when the first mentioned bed section is moved to an extended position with respect to the main frame, and means carried by the last mentioned means and cooperating with said lock member to cause the lock member to release the link devices as the second mentioned bed section is moved from an extended to a collapsed position.

12. In a bed construction the combination of a main frame, a movable bed section, track and roller means carried by the main frame and movable bed section for permitting the a guided vertical movement of the bed section with respect to the main frame, collapsible link devices at each of the ends of the main frame, each being connected with the main frame at one end and with the movable bed section at their opposite ends to extend and collapse said link devices as the bed section rises and falls with respect to the main frame, an elongated lock member at each end of the main frame, having agroove therein for each link device adjacent thereto, each groove having an offset groove end therein, an extension carried by'each link' device operating in said groove during rise and fall of the bed section inthe main frame, the bed section when ex tended to its highest extent in the main frame having the extensions of said link devices in the offset ends of the grooves to lock the said bed section in elevated positioniipring meansconnected with the lock mem r and with the link devices to cause the lock member to move .to permit said extensions of the link devicesto move into the'olfset groove ends upon the elevation of the bed section, and means to release said lock member to permit the bed section to fall and the link devices to collapse.

13. A collapsible bed consturction comprising a main bed frame having a couch portion movably mounted thereon, a companion frame having a couch portion, each of said couch portions including a bed spring, the

spring of the main frame in collapsed setting of the bed being below the spring of the companion frame b an interval sufiicient to accommodate there etween a thick mattress and the corresponding made-up bedding,

parallel motion linkage pivoted to said mam frame and determining the outward andinward movement of the companion frame by a translational displacement in a curved path through a range substantially greater than the width of either of said couch portions, and means connecting the linkage with the couch portion of the main frameto cause the latter to rise automatically as the com- .val sufiicient to accommodate therebetween a thick mattress and the corresponding made.- up bedding,.parallel motion linkage pivoted to said mainframe and determining the outward and inward movement of the companion frame by a translational displacement in r a curved path through a range substantiall greater than the width of either of said couc portions, and means connectingthe linkage with the couch portion of the main frame to "cause the later to rise automatically as the companion frame is moved to extended position through a height at least equal to the ends on the extension frame wherebythe ex combined thickness of the mattress and of the spiral spring into the space vacated by said companion couch portion. t

15. A collapsible bed construction comprising a main bed frame having acouch portion movably mounted thereon, a companion ff'ame having a couch port-ion supported at both lateral edges thereof by the main frame part substantially directly there below, each of said couch portions including a spiral bed spring, the spring of the main frame in collapsed setting of the bed being below the spring of the companion 1 tionliirka'ge pivoted to said main frame and,

frameby an interval "suflicient to accommodat'e'therebetween asthick mattress and the corresponding made-up bedding, parallel modetermining the outward and inward movementsof th'e companionframe by a translational displacement in a curved path through a range substantially greater than the width of either of said couch portions, and means connecting the linkage with the couch portion of the main frame to cause the latter to rise automatically as the companion frame .the companion frame by an interval sufficient to accommodate therebetween a thick mattress and the corresponding made-up bed-ding, parallel motion linkage pivoted to said main frame and determining the outward and inward movement of the companion frame by a translational displacement in a curved'path through a range substantially greaterthan the width of either of said couch portions, and -means connecting the linkage with the couch portion of the main frame to cause the latter to rise automatically as the companion frame is moved to extended position through a height at least equal to the combined thickness of the mattress and of the spiral spring into the spacvacated by said companion couchportion.

17 A collapsible bed' comprising. a relatively fixed main frame, a primary spring bed frame having means by which it is suported for vertical movement in the main rame, an extension spring bed frame having substantially the length and width of the primary frame, a pair of parallel links at each end of the bed pivoted at their lower .ends on the mainframe and at their upper tension frame may be swung from its collapsed position in which it is superposed on the main frame and spaced above the primary spring bed frame to an extended position in which it is in front of and spaced horizontally from both the fixed frame and the primary frame, means for supporting the extension frame in that vposition and means whereby swinging the extension frame from its collapsed to its extended position vertically raises the primary frame to a position substantially the same as that occupied by the extension frame when collapsed and a reversal of the swinging movement lowers the primary frame to a collapsed position directly below and spaced from the extension frame, the bed when in extended form presenting two substantially like and horizontally s aced spring bed frames.

18. convertible couch and twin bed construction including a main frame, a primary bed section mounted in the frame including a deep s(pring adapted to support a mattress, a secon ary generally similar extension bed section also including a spring adapted to support a mattress, means to normally support said sections and their bed clothing in superposed relationship with the primary 'bed section including its made-up bed clotl1- extended position wherein it is laterally spaced from the primary bed section, and means operable, upon movement of the extension section to extended position, to ele- 6 vate the rimary bed section. into the space vacated y the extension section, said sections in extended position presentin a. pair of twin beds, spaced apart suflicient to be g'made up with se arate sets of bed clot es and 1c 'of a hei ht su stantially the same as the height 0 the extension section when co1- ps6 JOHN W. SHAW.

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