US2613369A

US2613369A - Combined sofa seat and bed

Info

Publication number: US2613369A
Application number: US66043A
Authority: US
Inventors: Lorenz Anton; Nock Harry
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-12-18
Filing date: 1948-12-18
Publication date: 1952-10-14
Anticipated expiration: 1969-10-14

Description

Oct. 14, 1952 LORENZ ETAL 2,613,369

COMBINED SOFA SEAT AND BED Filed Dec. 18, 1948 3 SheetsSheet 1 l 76 I Wife/4 77 (J I N VEN TOR. anfoizzowfig 4,21%? 720 0/?! Q2950 rrze ys Oct. 14, 1952 A. LORENZ ETAL COMBINED SOFA SEAT AND BED Filed Dec. 18, 1948 3 Sheets-Sheet 2 INVENTOR. Unfair Z0767? analiferg 7200i az Z-brne y s.

Oct. 14, 1952 LORENZ ETAL 2,613,369

COMBINED SOFA SEAT AND BED Filed D60. 18, 1948 5 Sheets-Sheet 5 6 9 7 7 f 2 3 I Y 75) 77 INVENTOR.

Patented Oct. 14, 1952 UNITED STATES PATENT ossics Anton =Loronz,-Buifalo, N. Y., and Harry Nook, ,-Elizabeth, N. J.

Applioation-Deeember 18, 1948, SerialNo. 66,043

--1.6 Claims. (Cl. 5-1-6) :1 This invention relates 170 :sofa beds which may be converted from sofa seats to. beds :and "vice -ve'rsa.

An object of the invention is ."be provide; antimproved sofa bed, which occupies approximately the same space 'as an ordinary :sofa :seat or :isofa bed; which resembles in appearance an. ordinary .sofa -.seat or:davenport; .in which the seatj'level and bed level are those foun'd rmost .comioiitable --and common; which is 1 a: complete :unit :by itself so that it i may be pla'c'edz'anywhere in :a. room and "even away from a wall; which requires 51a imini- *mum'ofeffort to change ori'converltiitffromzasofa seat to *a sofa "bed and vice ".versa; xin which ;the

parts1are oounterbalaimedsomewhatltoxminimize the operating for'ce lqlllled zto convert it into either a sofaseat'orsofa bed;1which .willlrema'in'in either s'ofa seat or bed position under normal forc'e o'f use without "danger. of unintentional changing of its :position; which will :be :comfortable -'asbo'th a sofa seat:and asa be'd; .which:r.e

qiiires no mechanism to :hold the .partsi in =:either "sofa seat-position: or sofa bedz'position; :andwhich will be relatively compact-simple, :sdurable, practioal' and inexpensive.

Various other objects and "advantages will :be

apparent nom the *following description 'of 'two embodiments of the invention, and the "novel features will be partioulalry pointed out/hereinafter in connection with the appended claims.

In the accompanying drawings: Fig. 1 is a transverse, sectional elevation through a device constructed in acoord'ance with theinvention, and with the parts in the positions occupied when 'the device l is used as: a sofa seat, the section being taken along the 1 inside f-ace of one of the end members of the support andlooking toward the other end member;

"Fig. 2 is'-a"'similar sectional elevation, but with the pa'rts'sho'wn in the "positions'oocupied when the device isusedas a bed;

"Fig. 3 is aplan or the same, with the'partsin "gs-4 is a "sectional elevation somewhat similar to Fig. 1, but illustrating a sli'g ht 1 modification thereof; and

Fig. '5 isia sectiona -elevation somewhat similar to Fig. 2, but with the-parts constructed as shown Fig. '4.

In the embodiment of the invention illustrated 'in'FigsJl to "3-; the improved' sofa bed includes a t'supportvformedof upstandingpparallel'end memhers I "and 12 spacedapart inffaceto, face relation and connected "by "an "intermediate rigid portion formed "by "crossmenibers '3, I, 5"and '6. "Amattressesupporting frame shown as a shallow box withinan open'face is disposed between the end members I and 2, and is formed of a front section 6 and-a rear section I that are hinged together at the ends of their abutting edges by hinge 'pins 8. One of the frame sections carries a follower or "roller preferably one ateach end, whichis guided by a cam carried by the adjacent end member, so as to control and guide the-frame sections as they move in each direction between sofa bed and sofa seat positions. In this illustrated embodiment of the invention, the rollers or followers 9 areattached tot-the frame sections at their .hinged connection. For this purpose these pins .8 extend endwise from the sections 6 and I and carry rollers!) that serve as cam followers and run in arcuate, upstanding grooves I0 provided in the inside faces of the end members 1 and'2. Each camgroove til at its upper end is bent iforwardly and downwardly at l l.

The front section 16 is provided witha bottom wall 12, and withend walls 53 and M which extend iniboth directions beyond the bottom wall A 2 to theoppositezfaces thereof. o'fthe end walls .l3iand M 'areJhinged by pins-or The extensions pivots 15 upon'the upper BIldSiOf links lit-which at their outen'endsJare pivoted onbearing studs ll carried by the :end members. I and '2. pins or pivots =15 :are located intermediate the The treat and rear edges of'the end walls [3 and 1M,

and the links '56 are upwardly .andrearwardly inclined when the front section Blisupstanding in sofa-seat position, as showninFig. 1. The, rear section 1 is similar to frontsectionfi, inithat it has a bottom wall [8 and end walls [9 and 28 which extend in both 4 directions from 100th :faces of the bottom [8, as shown in Fig. 1. .Eachend wall 19 and '210 is pivoted intermediate ofitsifront and rear edges byrpivots or pins2l upon the upper ends of linlts '22, and the. lower. endsof thoselinks "are pivoted onstuds-23 carried'onitheiinnenfaces 'of the end WaHsW-and2. l

"When :the device is in sofacseat l position shown inFig. l, the open faces 'o'f thexltwo :sectionsfi and '1 abut f'acato face with .the chamberscof the sections combined; When the sectionwfi pulled forwardly, it will rock on the pivotipins 'l5,and the links-l6 Will at the same-time swing forwardly to allow the sections fi and to- "open like a book, the sections moving forwardly toward a horizontal-position and' the SGtiOh'i] moving *rearwardly toward a horizontal position.

"The" links 22=allow the rear seotion 'l to moverearwar'dly for this purpose; and; du'ring 'this 'opefiing movement the rollers- 9 on meninges 8 that c'on 3 nect the sections 6 and I move upwardly along the arcuate grooves it until they reach the upper ends of the arcuate portions of those grooves.

At this time the sections 6 and 1 will be in parallel positions, edge to edge, as shown in Fig. 2, and with the rollers 9 at the top of the grooves 10. A slight forward movement of both sections will then carry the rollers 9 down the inclined. grooves ll into the positions shown in Fig. 2. Both links l6 and 22 are then forwardly and upwardly inclined, so that any rearward push on the front section 6 will cause the sections 6 and I to rise on the

links

16 and 22 and the rollers 9 to ride up on the cam grooves ll Thus, ordinary forces acting against the sections 6 and 'l will not move them out of the horizontal position shown in Fig. 2, or cause the sections to fold book-like into the closed position shown in Fig. 1. The engagement of the rollers 9 in the forward ends of the grooves ll, limits the forward movement of the sections 6 and I. The engagement of the rollers 9 with the bottoms of the grooves I and the engagement of the links 16 against the cross member 4 serve to hold the folded sections and l in their upstanding, rearwardly inclined positions shown in Fig. l. The adjacent abutting edges of the sections 8 and I are open, except for short

upstanding flanges

24 and 25 in sections 6 and 1 respectively that serve as stops to limit endwise movements of

mattress sections

26 and 21 disposed in sections 6 and I respectively. Each mattress section has a small notch in the end engaging with the

stop

24 or 25, so that that mattress sections will abut edge to edge when the sections are open fiat as shown in Fig. 2. The mattress sections will be held against downward sliding movement by the

stops

24 and 25, see Fig. 1, when the sections are together, face to face.

It will be noted that when the sections are opened out from the Fig. 1 positions to the Fig. 2 positions, the links I6 move into forwardly and upwardly inclined positions, during which the pivots l5 move through vertical dead center positions. A seat cushion 28 is removably'mounted on the cross members, 3 and 4 in front of the folded sections 6 and 1. Between the end walls l3 and 14 of section 6, an upholstered backing or cushion 29 is confined against the bottom wall l2, at the opposite face thereof from the mattress section 26. This cushion 29 serves as the back of the soft seat when the cushions 6 and l are upstanding, as in Fig. 1.

In the embodiment of the invention illustrated in Figs. 4 and 5, the construction is the same as explained in Figs. 1 to 3, except that the links 22 are eliminated, and in place thereof the inside faces of the end members I and 2 carry rollers 30 which engage against convex edges or rails 3| provided on the end walls l9 and 20 of the rear section 1. These rollers 30 engage beneath the widest parts of the convex edges of the end walls l9 and 20 of the section 1, so that the sections 6 and I cannot sag when in upstanding positions. When the section 6 is pulled forwardly, the convex edges 3! will ride upon and along the rollers 30 and fulcrum therein while moving backwardly and forwardly, until the sections assume the bed position shown in Fig. 5. The rollers 30 thus support the rear section I in the horizontal position as well as in the upstanding position shown in Fig. l, and replace the links 22.

The links 22 and rollers 30 both function as fulcrums which support the rear section 1 while it rocks and moves backwardly and forwardly. Otherwise, the construction and operation of the 4 structure of Figs. 3 and 4 are the same as described for Figs. 1 to 3, and corresponding parts have corresponding numerals applied thereto. The upper surface of the seat cushion 28 is at the usual or any desired level for sofa seats, and the upper surfaces of the

mattress sections

26 and 21 are at the desired or usual mattress level for beds. It will be noted that no mechanical locks are required to hold the parts in either the sofa seat positions or the bed positions, and the moving parts are sufficiently counterbalanced so that relatively small forces are sufficient to convert the device from a sofa seat condition to bed condition, and vice versa.

It will be observed that engagement of rollers 9 in the grooves ID will guide the frame sections in their opening and closing movements, in the same manner whether the rollers are entirely on the section 6 or section 1, or at their junction. The cam grooves H] will, of course, have shapes and positions depending upon where the rollers 9 are located on the frame sections.

It will be further observed that when the frame sections 6 and 1 are opened out into bed positions, shown in Figs. 2, 3 and 5, they are supported at three positions from front to rear, which are on pivots l5, 8 and 2| in Figs. 1 to 3, and on pivots l5 and S, and fulcrums 30, Figs. 4 and 5. In all cases, one of these support points is always locked against accidental closing of the sections. The weight of the sections on links [6 and 22 will resist closing, as also the rollers 9 must ride up an inclined portion ll of the groove Ill before the sections may close. In the embodiment of the invention shown in Figs. 4 and 5, the weight of forward section 5, when the frame is opened into a bed, is applied to link 16 in a direction to keep the sections opened, and roller 9 in the inclined groove section II also resists closing of the sections. In both embodiments there is always at least one locking of the sections 6 and 1 against closing, and hence no manually operated latches are necessary to keep the frame sections in their open or bed positions or whichmust be operated when the device is converted into a bed or back into a sofa seat. The cam grooves l0 may be curved or shaped to carry the links l6 through vertical dead center positions during any part of the opening movements, if one so desires.

It will be understood that various changes in the details and arrangements of parts which have been herein described and illustrated in order to explain the nature of the invention, may be made by those skilled in the art within the principle and scope of the invention as expressed in the appended claims.

We claim:

1. A sofa bed comprising a support, a, mattress-supporting frame formed of front and rear sections, a hinge connecting said sections to fold together and open as a book with the hinged edge lowermost when folded, a link at each end of said support hinged at one end to said front section and at its other end to said support, said links being generally vertical and rearwardly inclined, when the sections are folded together, and movable forwardly through a vertical dead center position to carry said front section fromifolded position forwardly and downwardly into horizontal position, a flexible mattress confined in folded condition between the abutting faces of said frame when the sections are folded, and opening out into fiat condition when the sections are opened fiat, a seat cushion removably mounted on-said support in frontof said'sections when folded, a cam element on said support, .a 01- lower guided by said cam element andcarriedby said hinge between said sections for guiding that hinge upwardly and forwardly as the sections are opened into fiat, straight relationto each other, and a fulcrum member carried by said support-and directly engaging with the rear section intermediate its front and rear edges and supporting it for rocking and forward andrearward movements as the sections are folded or opened.

2. A sofa bed comprising "a support, a mattress-supporting frame formed-of front and rear sections, a *hingeconnec'ting said sections to fold together and openasa book'with the hinged edge lowermost when folded, a link at each end of said support hinged at one end to said front section and at its otherend to said support, said links being generally vertical and rearwardly inclined, when the sections 'are folded together, and movable forwardly through a vertical dead center position to carry said front section from folded position forwardly and downwardly into horizontal position, a flexible mattress confined in folded condition between the abutting faces of said frame when the sections are folded, and opening out into fiat condition when the sections are opened hat, a seat cushion removably mounted on said support 'in front of said sections when folded, a cam element on said support, afollower guided by said cam element and carried by said hinge between said sections for guiding that hinge upwardly and "forwardly as the sections are opened into flat, straight relation to each other, another pair of generally vertical links, one at each end of said frameand each hinged at one end to said support and at itsother end to the rear frame section intermediate'its front and rear side edges for supporting the rear frame section for rocking ;a limited forward and rearward .movementas the sectionsare folded and opened.

'3. A sofa bed comprising a support having spaced, parallel end members connected :by an intermediate portion, a :mattress-supporting frame formed of front and rear sections, a hinge connecting adjacent side "edges of said sections by which the sections may fold book-like in face to face relation and open into a straight line position, generally vertical links each hinged at one end 'to an adjacent end member and at its other end to said front section between its front and rear side edges, a follower on each end of said hinge, a cam on the inside face of each end membergand having a cam groove in which said follower runs, said groove rising and terminating at itsupper end in a forwardly extending generally horizontal branch, said support having a fulcrum element carried by said support and directly engaging with the rear section intermediate its front and rear edges and serving as a fulcrum for supportingsaid rear section for rocking and forward and rearward movement as the sections are folded or opened, said fulcrum element and links supporting said sections n folded upstanding position with the follower 1n the lower part of said groove and the links 1nclined rearwardly at their connection to said frontsection, but said links shifting forwardly through vertical dead center position as the sections are opened into flat horizontal position, and a seat cushion removably mounted on said support in front of said front section when said sections are folded and upstanding.

A sofa bed comprising a support having spaced, parallel end members connected :by 'an intermediate portion, a mattress-supporting frame formed of front and "rear sections, a hinge connecting adjacent side edges of :said sections by which the sections may fold booklike in face to -face relation and open into a straight line position, generally vertical links each hinged at one end to an adjacentend memher and at its other end to said front section between its front andrear'side-edges, a follower on each :end of said hinge, a c'am on the inside face :of each :end :member and having :a cam g-roovein which said follower runs, said groove rising 'a nd terminating at its upper end in a forwardly extending generally horizontal branch, said support having a fulcrum element carried by said support and directly engaging with the rear section intermediate its front andirear edges and serving as a fulcrum for .supportingfsai'd rear section for rocking .and forward and :rearward movement :as the sections are folded or opened, said fulcrum element :and links supporting said sections in folded upstanding position with the follower in the lower part of said groo-ve and the links inclined rearwardly at their connection to said front section, but said -links shifting forwardly through vertical dead center position "as the sections are "opened into fiat horizontal positions, a seat cushion removably mounted on said support in front of said front section when said sections are folded and upstanding, and mattress sections, one confined in and filling each frame section on the faces that abut when the sections are folded, and lying edge to edge whenthe sections are open out flat and horizontal.

5. A sofabed comprising a support, a mattresssupporting frame formed of frontand rear sections, ,a hinge connecting said sections to fold together and open as a book with the hinged edge lowermost when folded, a link .at each end of said support hinged at one end to said front section and at its other end to said support, said links being generally vertical and rearwardly inclined, when the sections are folded together, and movable forwardly through a vertical dead center position to carry said front section from folded position forwardly and downwardly into horizontal position, a seat cushion removably mounted on said support in front of said sections when folded, a cam element carried by said support at an end thereof and having a cam guide extending generally vertically, said frame at an end thereof and adjacent said hinge having a cam follower engaged with said cam guide and guided "thereby as the sections move between folded position and an open, horizontal position, each end of said support having a rocking fulcrum engagement with the adjacent endof said rear section between the front and rear side edges 0f that section, for supporting and guiding said rear section in both rocking and forward and rearward movements as the sections are moved between folded, upright positions and opened, horizontal positions.

-6. A sofa bed comprising a support, a mattresssupp'orting frame formed of front and rear sections, a hinge connecting said sections to fold together and open as a book with the hinged edge lowermost when folded, 'a link at each end of said support hinged at one end to said front section and at its other end to said support, said links being generally vertical and rearwardly inclined, when the sections are folded together, and movable forwardly through a vertical dead center position to carry said front section from folded position forwardly and downwardly into horizontal position, a seat cushion removably mounted on said support in front of said sections when folded, a cam element on said support and engaging with said frame for guiding the sections as they are opened into fiat, straight relation to each other or closed, another pair of generally vertical links, one at each end of said frame and each hinged at one end to said support and at its other end to the rear frame section intermediate its front and rear side edges for supporting the rear frame section'for rocking and limited forward and rearward movement as the sections are folded and opened.

7. A sofa bed comprising a support, a mattresssupporting frame formed of front and rear sections, a hinge connecting said sections to fold together and open as a book with the hinged edge lowermost when folded, a link at each end of said support hinged at one end to said front section and at its other end to said support, said links being generally vertical and rearwardly inclined, when the sections are folded together, and movable forwardly through a vertical dead center position to carry said front section from folded position forwardly and downwardly into horizontal position, a seat cushion removably mounted on said support in front of said sections when folded, a cam element and a follower element operated by said cam element, one of said elements being carried by said support and the other by said hinge, for guiding said hinge in a selected path as the sections are opened into flat, straight relation to each other or are closed, said rear section having a rail at each end with an exposed convex edge that is opposite from the front section when the sections are folded together, and a roller on each end member on which the convex edge of the adjacent rail rides to support the intermediate part of said rear section in all of its positions between folded and straight out horizontal positions.

8. A sofa bed comprising a support having spaced, parallel end members connected by an intermediate portion, a mattress-supporting frame formed of front and rear sections, a hinge connecting adjacent side edges of 'said sections by which the sections may fold book-like in face to face relation and open into a straight line position, generally vertical links each hinged at one end to an adjacent member and at its other end to said front section between its front and rear side edges, a follower on each end of said frame, a cam on the inside face of each member and having a cam groove in which said follower runs, said groove terminating in a forwardly and downwardly extending generally horizontal branch, said support having a fulcrum element carried by said support and directly engaging with the rear section intermediate its front and rear edges and serving as a fulcrum for supporting said rear section for rocking and forward and rearward movement as the sections are folded or opened, said fulcrum element and links supporting said sections in folded upstanding position with the follower in the lower part of said groov and the links inclined rearwardly at their connection to said front section, but said links shifting forwardly through vertical dead center position as the sections are opened into flat, horizontal position, and a seat cushion removably mounted on said support in front of said front section when said sections are folded and upstanding.

9. A sofa bed comprising a support having spaced, parallel end members connected by an intermediate portion, a mattress-supporting frame formed of front and rear sections, a hinge connecting adjacent side edges of said sections by which the sections may fold book-like in face to face relation and open into a straight line position, generally vertical links each hinged at one end to an adjacent member and at its other end to said front section between its front and rear side edges, a follower on each end of said frame, a cam on the inside face of each member and having a cam groove in which the adjacent follower runs, said groove terminating in a downwardly inclined branch, said support having a fulcrum element engaging with the rear section intermediate its front and rear edges and servingas a fulcrum for supporting said rear section for rocking and forward and rearward movement as the sections are folded or opened, said fulcrum element and links supporting said sections in folded upstanding position with the follower in the lower part of said groove and the links inclined rearwardly at their connection to said front section, but said links shifting forwardly through vertical dead center position as the sections are opened into flat horizontal positions, a seat cushion removably mounted on said support in front of said front section when said sections are folded and upstanding, and mattress sections, one confined in and filling each frame section on the faces that abut when the sections are folded, and lying edge to edge when the sections are open out flat and horizontal.

10. A sofa bed comprising a support having spaced upright end members, a mattress-supporting frame formed of front and rear sections, hinges connecting the adjacent side edges of said sections at their ends, with the sections folding face to face like a book and opening out straight, a link at each end of the front section hinged at one end to the adjacent end member, extending generally vertically and at its other end hinged to the adjacent end of said front section intermediate its front and rear side edges, a fulcrum part on each end member and engaging with the ends of the rear section intermediate the front and rear side edges of that section and supporting said rear section for rocking and forward and rearward movements as the sections are folded or opened, said frame and end members also having additional interengaging parts to hold said sections against rocking on said fulcrum parts in a folding direction and releasably in straight out and horizontal relation, said fulcrum parts and links supporting said frame in upstanding position when the frame is folded, and a seat cushion removably mounted on said support in front of said folded sections.

11. A sofa bed comprising a support, a mattress-supporting frame formed of front and rear sections, hinges connecting said sections at the ends of their adjacent side edges with the sections folding face to face or opening out straight, a fulcrum part at each end of each section, carried by said support and directly engaging the section between its front and rear side edges, said fulcrum parts supporting said frame in upstanding folded position, with the hinges at the bottom, and for rocking and forward and rearward movements while the sections open into horizontal positions, cam followers with alined axes extending outwardly from opposite end of said frame closely adjacent the hinge axes, said support having, at each end, a generally upright cam slot in which the adjacent follower runs, by which it is guided and by which the forward and rearward movements of said frame are controlled and limited as the frame sections fold and unfold, the upper end of each cam slot turning forwardly and downwardly at an inclination into and along which the cooperating follower passes as the sections approximately reach fully i open, horizontal positions, and a seat cushion mounted on said support in front of said frame when said sections are in folded positions.

12. A sofa bed comprising a support, a mattress-supporting frame formed of front and rear sections, hinges connecting said sections at the ends of their adjacent side edges, with the sections folding face to face or opening out straight, said support carrying a fulcrum part at each end of each section, directly engaging the section between its front and rear side edges, each said fulcrum part supporting said frame in upstanding folded position, with the hinges at the bottom, and for rocking and forward and rearward movements, while the sections open into horizontal positions, rollers carried by said frame, cams carried by said support at the ends of the frame for guiding said rollers and frame as the frame sections move into open straight positions or are closed, and a seat cushion mounted on said support in front of said frame when the sections are folded.

13. A sofa bed comprising a support, a mattress-supporting frame formed of front and rear sections, hinges connecting said sections at the ends of their adjacent side edges, with the sections folding face to face or opening out straight, said support having a fulcrum part at each end of each section, engaging the section between its front and rear side edges, said fulcrum part supporting said frame in upstanding folded position, with the hinges at the bottom and for rocking and forward and rearward movements, while the sections open into horizontal positions, rollers carried by said hinges, cams carried by said support at the ends of the frame for guiding said rollers and hinges first upwardly, and then forwardly and downwardly as the sections move into open straight positions, and a seat cushion mounted on said support in front of said frame when the sections are folded.

14. A sofa bed comprising a support, a mattress-supporting frame formed of front and rear sections, hinges connecting said sections at the ends of their adjacent side edges, with the sections folding face to face or opening out straight, said support having a fulcrum part at each end of each section, engaging the section between its front and rear side edges, said fulcrum parts supporting said frame in upstanding folded position, with the hinges at the bottom and for rocking and forward and rearward movements while the sections open into horizontal positions, said support also having an element interengaging with the hinges to hold said sections releasably against folding of the sections while the sections are in open, horizontal positions,

10 mattress sections confined against the faces of the sections that abut when the frame is folded into closed position, and a seat cushion mounted on said support in front of said frame when the sections are folded.

15. A sofa bed comprising a support, a mattress-supporting frame formed of front and rear sections, hinges connecting said sections at the ends of their adjacent side edges, with the sections folding face to face or opening out straight, said support having a fulcrum part at each end of each section, engaging the section between its front and rear side edges, each said fulcrum parts supporting said frame in upstanding folded position directly from said support, with the hinges at the bottom, and for rocking and forward and rearward movements, while the sections open into horizontal positions, rollers also carried by said frame at a substantial distance from all of said fulcrum parts, cams carried by said support at the ends of the frame for guiding said rollers first upwardly and then forwardly and downwardly as the sections move into open straight positions at the end of the opening movement, mattress sections confined against the faces of the sections that abut when the frame is folded into closed position, and a seat cushion mounted on said support in front of said frame when the sections are folded.

16. A sofa bed comprising a support, a mattress-supporting frame formed of front and rear sections, hinges connecting said sections at the ends of their adjacent side edges, with the sections folding face to face or opening out straight, said support having a fulcrum part at each end of each section, engaging the section between its front and rear side edges, said fulcrum parts supporting said frame in upstanding folded position, with the hinges at the bottom and for rocking and forward and rearward movements, while the sections open into horizontal positions, rollers carried by said hinges, cams carried by said support at the ends of the frame for guiding said rollers and hinges first upwardly, and then forwardly in a general horizontal direction as the sections move into open straight positions, mattress sections confined against the faces of the sections that abut when the frame is folded into closed position, and a seat cushion mounted on said support in front of said frame when the sections are folded.

ANTON LORENZ. HARRY NOCK.

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

UNITED STATES PATENTS Number Name Date 880,278 Coopersmith et a1. Feb. 25, 1908 984,684 Luppino Feb. 21, 1911 2,313,847 Thomas Mar. 16, 1943 FOREIGN PATENTS Number Country Date 467,008 Great Britain June 9, 1937