US3525106A

US3525106A - Pullout sofa beds

Info

Publication number: US3525106A
Application number: US757817A
Authority: US
Inventors: Albert Perry
Original assignee: Super Sagless Spring Corp
Current assignee: Super Sagless Spring Corp
Priority date: 1968-09-06
Filing date: 1968-09-06
Publication date: 1970-08-25
Anticipated expiration: 1987-08-25
Also published as: FR2017542A1; DE1941885A1; GB1222036A

Description

IWL'NTOR. ALBERT PaRRY ATTORNEY Aug. 25', 1910 A. PERRY PULLOUT son BEDS 5 Sheets-Sheet 1 Fled'Sept. 6, 1968l Aug. 25, 1970 A. PERRY PULLOUT soFA BEDS 5 Sheets-Sheet Filed Sept. 6, 1968 Ki'llllll' I lill-524.-

a NN INVENTOR AL'BERT PERRY W ATTORNEY A. PERRY PLLOUT SOFA BEDS Aug. 25, 1910 5 sheets-sheet :s

Filed Sept. 6, 1968 INVENTOR. ALBERT PERRY ATTORNEY 5 Sheets-Sheet 4 Filed Sept. 6, 1968 INVENTOR. ALBERT PERRY ATTORNEY Aug. 25, A PERRY PULLoUT som Bans 5 Sheets-Sheet 5 Filed sept. 1968 vl .m me QQ P QN MQW wQN n# SMN MT QN IMQ um. www mw Nm, \\\0\ Em. QS NS N @QN mm 5%@ ww@ E ,S wm. A o ww Q @N mw Nw v0 mm mm @www mw, h .b k

@.bTm.

AT TORNEY 3,525,106 PULLOUT SOFA BEDS Albert Perry, Glendale, N.Y., assignor to Super Sagless pring Corp., Bayonne, NJ., a corporation of New S York Filed Sept. 6, 1968, Ser. No. 757,817 Int. Cl. A47c 17/14, 17/22 U.S. Cl. 5--13 20 Claims ABSTRACT OF THE DISCLOSURE This sofa bed is of the four-section type on which people sleep lengthwise in the bed with the head or Afeet at the sofa frame. The bed has toggle linkage so a1'- ranged that when the bed is in tilted position, it may be moved to fully collapsed position with not too much push with the hand, and yet the gentle push translates to a very significant compression force on the mattress and a locking of the fully folded 'bed frame.

BACKGROUND OF THB INVENTION Field of the invention This invention relates to collapsible loose pillow back or fixed pillow back sofa beds of the four section type which is collapsible into Ia sofa frame to hold and com.- press a mattress which is folded within the collapse of the bed, and which bed may be extended so that the four sections are in horizontal coplanar position.

Description of the prior art This invention constitutes an improvement on Pat. No. 3,281,870 granted Nov. 1, 1966. Said prior p-atent shows a collapsible pullout bed of the same general type but doesnt show a toggle mechanism for locking the leg sections in the fully collapsed position of the bed, to permit compression of the mattress with a relatively light manual push on the bed from tilted to fully collapsed position.

SUMMARY OF THE INVENTION An object of this invention is to provide a pullout bed construction of the character described in which a gentle push on the bed from tilted position to fully collapsed position translates to a very significant compression force on the mattress and at the same time locking the leg section of thebed, so that the leg section cannot move relative to the intermediate section until the bed is first moved from fully collapsed position to tilted position.

Another object of this invention is to provide a rugged and durable sofa bed of the character described which shall be relatively inexpensive to manufacture, easy to manipulate, comfortable to use, and which shall yet be practicable and efiicient to a high degree.

`Other objects of this invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combination of elements, and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of invention will be indicated in the following claims.

In the accompanying drawing, in which is shown an illustrative embodiment of this invention.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a side elevational view showing the pullout bed in fully collapsed position within the sofa frame.

FIG. 2 is a view similar to FIG. 1, but showing the tilted position of the bed as the bed is being pulled out from f-ully collapsed position.

3,525,106 Patentgd Aug. 25, 1970 DESCRIPTION OF THE PREFERRED EMBODIMENT ICC Referring now in detail to the drawings, the present invention comprises a sofa frame F and a collapsible bed B mounted thereon.

Frame F comprises a back wall 10, and a pair of side walls 11 connected thereto, and a front Vboard 12 interconnecting lower parts of the side walls 11. Suitable legs 13 are provided to support the frame F. The frame F may be upholstered and will include loose seat cushions and either loose back cushions or back cushions fixed to the front surface of the back wall 10, which cushions and upholstery is not shown, for sake of clarity.

The frame F is of conventional construction and is shown in the dot-dash lines. In the following description of the bed, the drawings show only one side of the bed and the mechanism on the other side is identical but symmetrically disposed.

The bed B is mounted on L-shaped chassis member 15 comprising a plate 15a formed with an offset flange 15b at its front end. Plate 15a is fixed to the inside surface of side wall 11, and flange 15b is fixed to the front board 12, by any suitable means.

vPivotally mounted to the rear end of the chassis plate 15a in spaced relation to back wall 10, as by pin 16, is a moving pivot link 17. Chassis 15 is formed, adjacent the forward end thereof, with an opening through which passes a pivot 19 on which is mounted a main drive member or lever 21. Attached to the lever 21, above the pivot 19, is a strap 22 connected by a coil tension spring 25 to a block 27 fixed to the chassis closer to the rear end of said chassis. The spring 25 tends to rotate the lever 21 in a counterclockwise direction looking at FIG. 3. The spring 25 may fbe adjusted in any suitable man ner for tension. Pivoted to the outer end of lever 21, as by pivot pin 30, is one end of a connecting link 31. The free end of the connecting link 31 is pivoted to an intermediate portion of the moving pivot link 17 as by pivot pin 32. Fixed to the rear surface of the inwardly extended portion 15b of the chassis 15 is a cross angle iron 34 which extends the width of the bed to the corresponding portion of the chassis 15 at the other side thereof. Angle iron 34 serves to strengthen the entire structure and is located to support the bed in collapsible position as will be described hereinafter.

The remaining portions of the bed B are mounted only on the structure thus far described.

Pivot'ed to the free end of link 17, as on pivot pin 36 is a rear throwout link 37. As shown in FIG. 1, the rear throwout link 37 is of a composite shape and comprises a first leg 37a having its outer end pivoted to pin 36; a second leg 37b perpendicular to leg 37a; and a third leg 37t` extending from leg 37b to the opposite side thereof at an acute angle to the centerline of said leg 37b. Members 37, at opposite sides of the bed are interconnected by a cross-piece 40.

Pivoted to the free end of leg 37C, as by pivot pin 38, is a control link 39. -Link 39 is of a composite shape and comprises a first link 39a having its outer end pivoted to said pin 38; a second leg 39h at an acute angle to the centerline of leg 39a; and a third leg 39C extending from the other end of the leg 39b to the opposite side of leg 39a, at an acute angle to the centerline of leg 391;. Members 39 at opposite sides of the bed are interconnected by a cross-piece 41.

The free end of leg 39C of control leg 39 is pivotally connected by a common pivot pin 42, to join the pivotal connection between a rear bed section 43 and a rear intermediate bed section 44. These bed sections are of angle shape cross-section.

Pivoted to link 37 at the juncture of legs 37b and 37e, of pivot pin 47 is one end of a substantially straight control link 48. The other end of link 48 is pivoted by pin 49 to one end of a control link 50. Pivoted to control link 50 in spaced relation to the oth' 1r end thereof on pivot 51, is other end of the main drive lever 21.

Said other end of the link 50 is pivot of pivot pin 52 to one arm of a bell crank lever 53. Bell crank lever 53 is pivoted to the rear intermediate bed section 44 on pivot pin 54. The bed sections themselves are of well-known type and are formed of angle iron side members which have one flange extending upwardly and the other flange extending inwardly from the lower end of the upwardly extending ilange when the bed is open or fully extended. The rear ends of the angle irons forming the bed section 43 are joined by an end bar 55 to complete the rear end of the bed frame. A link fabric 56 is supported in the bed frame by suitable springs 57 which are attached to the inwardly extending ilanges of the bed section side angle irons and to the bed frame end bars. The link fabric 56 serves to support a mattress and is conventional.

i A stop link 63 (FIGS. 1 and 6) has one end pivoted at 64 to the inside surface of the upwardly extending ange of the side angle iron of the rear bed section 43. The other end of said stop link 63 is pivoted to a portion of open position locking mechanism which will be described hereinafter.

Pivoted to the free end of the other leg of bell crank 53, at common pivot 64 is a rear leg operating link 65'). Pivoted to the front end of the rear intermediate bed section 44 on pivot 67, is the rear end of a short front intermediate bed section 66. A rear leg 68 is also pivoted to said pivot 67. Rear leg 68 includes an upper ange 69 to which a leg portion 70 is fixed. Flange 69 includes the common pivot 67 at the upper end thereof. The other end of the rear leg operated link 65 is pivoted to leg 68 on pivot 71.

The vertical outer ange of the side angle irons of rear intermediate bed section 44 is provided with a plurality of

slots

72, 73, 74, 75. On the other side of the bed, slot 75 will be in a position of slot 72 and the other slots are reversed accordingly. 'Slidably mounted in slot 74 is a common pivot 76. A control link 77 has one end pivoted to the said pivot pin 76, and has second end which is provided with a slot 78, slidably receiving the common pivot 64. Mounted on common pivot 76, on the same side of slot 74 as link 77 is mounted, is one end of a control link 79. The other end of link 79 is pivoted at pivot 80 to an intermediate portion of the external flange of the angle iron of the front intermediate bed section 66. Fixed to the common sliding pivot 76 at the side of slot 74 opposite the side on which links 77 and 79 are mounted, is one end of a slider bar 81 located in the plane of bed section 44. The other end of slider bar 81 is mounted by pin 82 in slot 72. Slider bar 81 is provided with a slot 83 (FIG. 6) adjacent the rear end thereof. The other end of stop link 63 is slidably and pivotally mounted on pin 84 which is received in slot 83 (FIG. 6).

Pivoted to the leg 68 as at 201 is a link 202. At the upper end of the link 202 is a pivot pin 203. Pivoted to the pivot pin 203 is a link 204 formed with a longitudinal slot 205. The control link 79 carries a pin 206 slidably received in slot 205.

A front or leg bed section 104 is pivoted to intermediate section 66 as on pivot 109. IPivoted to bed section 104 as on pivot 108 is a front leg 107. At the upper end of the leg 107 is flange 106 which carries a pivot 10S. Pivot 105 is connected by a link 207 to a pivot pin 208 on the front intermediate or short fold section 66. The pivot 203 is connected to the front or leg section 104 by a link 210 which is pivoted to said section 104 by pivot pin 211. The pivot pin 211 is spaced rearwardly of the pivot pin 108. yIn the fully extended position of the bed, link 202 is nclined upwardly and forwardly and the link 210 is substantially in the plane of bed section 104. In such position the link 204 is horizontal, and the pin 206 is at the rear end of the slot 205. Also the link 79 is then in horizontal position and in the plane of

bed sections

44, 66 in said fully extended position of the bed. As shown in FIG. 4 of the drawing, the pin 76 is at the front end of the slot 74 and the pin 64 is at the lower or outer end of the slot 78. Also the pin 84 is disposed at the rear end of slot 73 and the pin 82 is disposed at the right end of slot 72.

A cross-member 110 is provided, which connects the front intermediate bed sections 66 at opposite side of the bed, on the undersides thereof when the bed is in the extended condition thereof. A stop member or locating bracket 111 is xed to the bed section 66 to contact the cross-member 34 where the bed is in fully collapsed position.

OPERATION On unfolding or setting up the bed B, the mechanism passes through the positions of FIGS. l, 2, 3, and 4. During the rst phase of the opening cycle, as the bed B is moved from the FIG. l to the FIG. 2 position, main drive lever 21 rotates in a clockwise direction of its pivot pin 19, being aided in this motion by the pull of spring 25. Such action causes moving pivot link 17 to rotate in a clockwise direction about pivot pin 16. As this iS happening, rear throwout link 37 is rotating in a counterclockwise direction about the moving pivot 36, thereby, acting through the

links

48 and 39, moving the still folded front and rear intermediate bed sections upwardly and forwardly so that said sections and the rear leg 68 will clear the front board 12.

In the second phase of the opening cycle, the bed B goes from the FIG. 2 to the FIG. 3 position. Main drive lever 21 continues to rotate clockwise and the rear throwout link 37 continues to rotate counterclockwise. However, this continued motion causes only a relatively small amount of continued motion of the pivot link 17. The continued motion of lever 21 and link 37, acting through control link 50, bell crank 53 and rear operating link 65 causes rear leg 68 to pivot in a counterclockwise direction about common pivot 67, to put the rear leg into its unfolded supporting position shown in FIGS. 3 and 4 contacting the floor. As shown in FIG. 3, the front intermediate bed section 66 is substantially in vertical position and the front or leg section 104 is substantially in horizontal position.

In FIG. 3, the pin 64 is at the upper end of the slot 78. The pin 76 is at the left end of the slot 74. The pin 84 is at the left end of the slot 73 and the pin 82 is at the left end of the slot 72. The link 79 is inclined upwardly to the right. Link 210 is inclined upwardly to the left and the link 204 is at an angle to the link 210. The pin 206 is at the lower end of the slot 205. In the position of FIG. 3, the leg section 104 could be raised and the bed section 66 can swing in a clockwise direction about the pin 67. From the position of FIG. 3, the bed can be extended to the fully extended position of FIG. 4. The mattress which lies flat on the bed frame becomes folded When the bed frame is collapsed.

In collapsing the bed, as the bed is moved from the position of FIG. 3 to the position of FIG. 2 (which is the tilted position), the link 204 moves closer to a position alongside of link 210. As the bed is collapsed from the tilted position of FIG. 2, to fully collapsed position of FIG. l, link 204 moves into a position alongside of the link 210. Since the pin 206 of the link 79 is at the lower end of the slot 205 in the fully collapsed position anism. Because of this mechanism a light push of the bedframe from tilted position of FIG. 2 to a fully collapsed position of FIG. 1, translates to a significant compression force on the mattress.

In the fully extended position of the bed as shown in FIG. 4, the'link 79 being in horizontal position and connected to the pivot pin 80 of section 66, is prevented from moving to the left. Since it is pivoted by pin 76 to the link 81 from moving to the left. Link 81 being connected to the pin 82 retains saidpin against moving to the left. The link 63 carries the pin 81 which is at the left end of the slot 73' and being connected to the head or rear section 43 by pin 64, serves to hold said section in horizontal position. The rear section furthermore has an abutment with the rear intermediate section 44 to hold said rear section in horizontal position.

It will thus be seen that there is provided an article in which the several objects of this invention are achieved, and'which is well adapted to meet the conditions of practical use. l

As possible embodiments might be made of the above invention, and as various changes might be made in the embodiment above set forth, it is to be understood that all matterl herein set forth is'to be interpreted as illustrative-only.

I claim: l t

1.` In a sofa b ed, `the combination comprising a chassis attachable to a sofa frame, a maindrive member pivoted to said chassis, abcd frame comprising a rear bed section, a rear' intermediate bed section pivoted to the front end of 'said rear bed section, a' front intermediate bed section pivoted to the front end of said rear intermediate bed section, a front `bed section pivoted to the front end of saidgfront intermediate bed section, said bed s-ections being in alignment inthe open position of said bed, a control lever pivotally mounted on said rear intermediate bed section, control link means connecting said control lever with said main drive member and with saidkchassis, link means connecting said control link means lwith the pivotal connection of saidrear bed section to said rear intermediate bed section, a rear leg pivotedto the pivotal connection of said rear intermediate bed section to said front intermediate bed section, a pivot pin, means on said rear intermediate bed section to mount said pivot pin for, sliding movement longitudinally of said rear intermedaite bed section, a iirst link pivoted to said 'slidably mounted pivot'pin and being formed with a slot, a pin on'said control -lever received in said slot, a second link pivotally connected at one end to said pin on said controllleve'r, vandfat"its.other end pivotally connected to said'rear: leg, a'third link pivoted on said pivot pin,

means to pivotally connect `said third link to said front intermediate bed frame section, and toggle means to lock said front bed sectionagainst movement away from said rear intermediate bed sectionwhen said bed is in `fully collapsed condition, with said: rear intermediate,y bedv section in horizontal position, said rear bed section extending upwardly from the rear end of said rear intermediate bed section, said front intermediate bed section extending up from thefront end of said rear intermediate bed, section, and said `front bed section extending'rearwardly from the upper end of said front intermediate bed section, said toggle means comprising a fourth link pivotally connected at one end to said rear leg, a viifth link connecting said fourth .link tosaid front bed section, a sixth link pivoted to the pivotal connection between said fourth link and fifth link, and formed with a longitudinal slot, and a pin on said third link and slidably received in said slotA in said sixth link, said pin 6 on said third link being disposed at the lower end of said slot in said sixth link when said bed is in fully collapsed condition.

2. The combination of claim 1, a front leg pivotally connected to said front bed section, and a seventh link connecting said front leg to said front intermediate bed section.

3. The combination of claim 1 said control link means comprising a moving pivot link pivoted to said chassis, link means interconnecting said main drive member and said moving pivot link, a throw-out link pivoted to said moving pivot link, a rst control link interconnecting said throw-out link with the pivotal connection between said rear bed section and said rear intermediate bed sections, a second control link, a third control link, said second control link interconnecting said throw-out link with said third control link, a pivotal connection Ibetween said third control link and said control lever, and a pivotal connection between said main drive member and said third control link.

4. In a sofa bed, the combination comprising a chassis attachable to a sofa frame, a main drive member pivoted to said chassis, a bed frame comprising a rear bed section, a rear intermediate bed section pivoted to the front end of said rear bed section, a front intermediate bed section pivoted to `the front end of said rear intermediate bed section, a front bed-section pivoted to the front end of said front intermediate bed section, said bed sections being in alignment in the open position of said bed, a control lever pivotally mounted on said rear intermediate bed section, control link means connecting said control lever with said main drive member and with said chassis, link means connecting said control link means with the pivotal connection of said rear bed section to said rear intermediate bed section, a rear leg pivoted to the pivotal connection of said rear intermediate bed section to said front intermediate bed section, a pivot pin, means on said rear intermediate bed section to mount said pivot pin for sliding movement longitudinally of said rear intermediate bed section, a first link pivoted to said slidably mounted pivot pin and being formed with a slot, a pin on said control lever received in said slot, a second link pivotally connected at one end to said pin on said control lever and at its other end pivotally connected to said rear leg, a third link pivoted on said pivot pin, means to pivotally connect said third link to said front intermediate bed frame section and toggle means to lock said front bed section against movement away from said rear intermediate bed section, when said bed in fully collapsed condition, with said rear intermediate bed section in horizontal position, said rear bed section extending upwardly from the rear end of said rear intermediate bed section, said front intermediate bed section extending up from the front end of said rear intermediate bed "section, and said front bed section extending rearward- `a throw-out link pivoted to said moving pivot link, a

irst'control link interconnecting said throw-out link with the pivotal connection between said rear bed section and said v rear intermediate bed section, a second control link, a third control link, said second control link interconnecting said throw-out link with said third control andsaid control lever, and a pivotal connection between said main drive member and said third control link.

5. The combination of claim 4, said pin on said rst link being disposed at the front end of said first slot in saidrear intermediate :bed section when said bed is in fully extended condition.

6. In a sofa bed, the combination comprising a chassis attachable to a soft frame, a main drive member pivoted to said chassis, a bed frame comprising a rear bed section, a rear intermediate bed section pivoted to the front end of said rear bed section, a front intermediate bed section pivoted to the front end of said rear intermediate bed section, a front bed section pivoted to the front end of said front intermediate bed section, said bed sections being in alignment in the open position of said bed, a control lever pivotally mounted on said rear intermediate bed section, control link means connecting said control lever with said main drive mem-ber and with said chassis, link means connecting said control link means with the pivotal connection of said rear bed section to said rear intermediate bed section, a rear leg pivoted to the pivotal connection of said rear intermediate bed section to said front intermediate bed section, a pivot pin, means on said rear intermediate bed section to mount said pivot pin for sliding movement longitudinally of said rear intermediate bed section, a first link pivoted to said slidably mounted pivot pin and being formed with a slot, a pin on said control lever received in said slot, a second link pivotally connected at one end to said pin on said control lever, and at its other end pivotally connected to said rear leg, a third link pivoted on said pivot pin, means to pivotally connect said third link to said front intermediate bed frame section, and toggle means to lock said front bed section against movement away from said rear intermediate bed section, when said bed is in fully collapsed condition, with said rear intermediate bed section in horizontal position, said rear bed section extending upwardly from the rear end of said rear intermediate bed section, said front intermediate bed section extending up from the front end of said rear intermediate bed section, and said front bed section extending rearwardly from the upper end of said front intermediate bed section, said means on said rear intermediate bed section to mount said pivot pin for sliding movement, comprising a first slot formed in said rear intermediate :bed section and receiving said pivot pin, a slider bar carrying said pivot pin, a stop link pivoted to said rear bed section, and carrying a pin received in a slot formed in said slider bar, and said rear intermediate bed section being formed with a second slot receiving said pin on said stop link, and said rear intermediate bed section being formed with a third slot, and another pin on said slider bar slidably received in said third slot in said rear intermediate bed section.

7. The combination of claim 6, and said another pin on said slider bar being disposed at the front end of said third slot in said rear intermediate bed section, when said bed is in fully extended condition.

8. The combination of claim 7, and said pin on said stop link being disposed at the rear end of said second slot in said rear intermediate bed section when said bed is in fully extended condition.

9. The combination of claim 8, said fourth link being inclined upwardly and forwardly, and said third link, fifth link and sixth link .being disposed in horizontal positions in the plane of said bed sections, when said bed is fully extended.

10. The combination of claim 9, a front leg pivotally connected to said front bed section, and a link connecting said front leg to said front intermediate section.

11. The combination of claim 4, said means on said rear intermediate Ibed section to mount said pivot pin for sliding movement, comprising a first slot formed in said rear intermediate bed section and receiving said pivot pin, a slider bar carrying said pivot pin, a stop link pivoted to said rear bed section, and carrying a pin received in a slot formed in said slider bar, and said rear intermediate bed section being formed with a second slot receiving said pin or said stop link, and said rear intermediate bed section being formed with a third slot, and another pin on said slider bar slidably received in said third slot in said rear intermediate `hed section.

12. The combination of claim 11, said pin on said first link being disposed at the front end of said first slot in said rear intermediate bed section when said bed is in fully extended condition.

13. The combination of claim 12, and said another pin on said slider bar being disposed at the front end of said third slot in said rear intermediate bed section, when said bed is in fully extended condition.

14. The combination of claim 13, and said pin on said stop link being disposed at the rear end of said record slot in said rear intermediate bed section when said bed is in fully extended condition.

1S. The combination of claim 14, said fourth link being inclined upwardly and forwardly, and said third link, fifth link and sixth link being disposed in horizontal positions in the plane of said bed sections, when said bed is fully extended.

16. In combination, a first bed section, a second bed section pivoted at one end to an end of said first bed section, a third `bed section pivoted at one end to the other end of said second bed section, said third bed section being a front bed section, a bed leg pivoted to at least one of said first and second bed sections, and being swingable against the underside of said first bed section, and control means including toggle means to lock said third bed section against pivotal movement relative to said second bed section in opposite directions and upward away from said first 'bed section and to lock said second bed section against pivotal movement relative to said first bed section, in opposite directions when said second bed section extends'substantially at right angles to said first bed section, and said third bed section overlies the first bed section, in substantially parallel relation thereto, and said bed leg is swung up against the underside of said first bed section, and said control means permitting swinging of said second bed section and said third bed section, together, about the pivotal connection between said first and second bed sections until said second bed section is aligned with said first bed section, when said leg is swung down away from the underside of said first bed section to bed supporting position, while retaining said second and third bed sections locked againstrelative movement, one with respect to the other, and said control means permitting pivotal movement of said third bed section relative to said second bed section, after said second bed section has reached said aligned position relative to said first bed section, so that said third bed section can be moved to aligned position relative to said second bed section.

17. In combination, a first bed section, a second bed section pivoted at one end to an end of said first bed section, a. third bed section pivoted at one end to the other end of said second bed section, a bed leg pivoted to at least one of said first and second bed sections, and toggle means to lock said third bed section against movement upward away from said first bed section when said second bed section extends up from said first bed section, and said third bed section overlies the first bed section, and said bed leg is swung up against the underside of said first bed section, said toggle means comprising a first link having a sliding pivot connection at one end to said first bed section and a pivotal connection at its other end to an intermediate portion of said second bed section, a second link pivotally connected to said leg, a third link pivotally connected at one end to said second link and at its other end to an intermediate portion of said third bed section, and a fourth link pivoted to the pivotal connection between said second and third links and formed with a slot, and a pin on said first link slidably received in said slot in said fourth link.

18. The combination of claim 17, and means connected to said first bed section to swing said leg toward the underside of said first bed section and to slidably move said sliding pivot connection of said first link relative to said first bed section.

19. The combination of claim 18, said last mentioned means comprising, a control lever pivoted to said first bed section, means to rotate said control lever, a fifth link pivoted to the sliding pivot connection of said first link,

9 10 said fth link being formed with a slot, a pin on said con- References Cited trol1 lever tllilllly .recteiedlc in said csllclxtt in 'sidfth linli, UNITED STATES PATENTS an a six 1 p1vo e a one en o sal pm on sa1 3,281,870 11/1966 Katz 5-13 fth link and being prvoted at lts other end to said leg. 3,380,083 4/1968 Mikos 5 13 20. The combination of claim 19, another bed leg piv- 5 oted to said third bed section, and a seventh link connecting said another leg to said second bed section. CASMIR A' NUNBERG Pnmary Exammer