US2827640A - Single holding link wood frame to metal folding bed - Google Patents

Description

March 25, 1958 R. GOODMAN 2,827,640

SINGLE HOLDING LINK WOOD FRAME TO METAL FOLDING BED Filed Deo. 31,v 1954 4 Sheets-Sheet 1 Kaber Geac/mdf) Mrch 25, 1958 R. GooDMAN 2,827,640

sINGLE HOLDING LINK woon FRAME Io METAL FOLDING BED Filed Dc. 31, 1954 4 sheets-sheet 2 INVENTOR ober Goodman BYE/ww AUORNEY March 215, 1958 R. GOODMAN 2327x540 l SINGLE HOLDING LINK WOOD FRAME TO METAL FOLDING BED Filed Dec. 31, 1954 4 Shee'ts-Sheet 3 1N VENTOR Robe/jf doof/maf) www ATTORNEY R. GooDMAN SINGLE HOLDING LINK woon FRAME To METAL FoLnIN v2,827,640 G BED March 25, 1958 4 Sheets-Sheet 4 f Filed Dec. 31, 1954 ATTORNEY Tv me SQ..

United States Patent O SENGLE HLBENG LNH WOOD FRAME TO lv/IETL FDING BED Robert Goodman, Philadelphia, Pa.

Application December 31, E354, Serial No. 479,699

2 Claims. (Ci. 5-13) My invention relates to davenport-beds, and more particularly, relates to folding and positioning means to position the bed portion in space relationship to the davenport.

In davenport-bed combinations, it is essential that the folding and unfolding of the bed portion be accomplished in a manner that permits easy and complete control of the Ibed portion in all positions from the fully compacted arrangement of the bed within the davenport to the fully extended arrangement of the bed portion. In all positions of the operation, it is essential that the bed be supported and balanced and that little elort is required on the part of the operator, as this type bed is often operated by women or small children. lt is also essential that the movement of the bed portion be accomplished without jamming, and that the bed portion be so constructed that all the sections of the bed portion be in definite relative position to each other and to the davenport throughout all phases of the folding and unfolding operation.V

It is, therefore, an object of my invention to construct a bed spring supporting means for a davenport-'bed that can be folded into a compacted arrangement within a davenport of average size; the davenport having a seat and back positioned to comfortably support a person seated on the davenport.

Another object of my invention is to construct a bed spring 'supporting means for a davenport-bed that has all its members in almost perfect balance in all positions during the folding and unfolding operation.

Another object of my invention is to device a bed spring supporting means for a davenport-bed that has all its members positioned in definite space relationship to each other and to the davenport in all phases of the folding and unfolding operation.

Another object of my invention is to devise a bed spring supporting means for a davenportbed that is firm and rigid in its extended arrangement to provide a iirm support for the mattress of the bed.

Another object of my invention is to device a bed spring supportingv means for a davenport-bed that provides a firm and rigid support for the seat of the davenport when the bed spring supporting means is completely compacted within the davenport.

Other objects of my invention are to provide an improved device `of the character described, that is easily and economically produced, which is sturdy in construction, and which is highly effective in operation.

With the above and related objects in view, my invention consists in the details of construction and combination of parts, Vas will be more fully understood from the following description, when read in conjunction with the accompanying drawings, in which:

Fig. l is a perspective view of a davenport-bed embodying the features of my invention.

Fig. 2 is a sectional elevational view of the davenportbed taken along line 2-2 of Fig. 1, showing the bed spring supporting means in its fully compacted arrange- 2,827,649 Patented Mar. 25, 1,958.

ment; the supported mattress is shown in dot and dash lines.

Fig. 3 is a sectional elevational view of the davenport- Ibed with the bed portion partially withdrawn from the davenport.

Fig. 4 is a fragmental sectional elevational View of the bed spring supporting means as it would appear after the first unfolding operation.

Fig. 5 is a fragmental sectional elevational View of the bed spring supporting means as it would appear with the foot section of the support frame in a vertical position.

Fig. 6 is a fragmental sectional elevational view of the bed spring supporting means in its fully extended arrangement.

Referring now in greater detail to the drawings, I disclose a davenport-bed, generally designated D, arranged to house a folded bed frame, generally designated B. The davenport is comprised of an upholstery-covered frame, generally designated F, with the folded bed frame B supporting an upholstered seat, generally designated S. The foldable bed spring supporting frame B is the feature of my invention, and the frame B is comprised of a head section, generally designated H, an intermediate section, generally designated I, a folding section, generally designated FS, and a foot or end section, generally designated E. In describing the functioning of the bed frame, the operation of the parts on the left hand side of the bed frame B will be described. However, it is to be understood that the corresponding parts on the right hand side of the bed frame function in a similar manner.

A mounting plate 10, securely attached to the davenport frame members F1 and F2, is provided with a pivot P1 to which is pivotally attached a head section positioning link 11. Adjacent to the outer end of the head section positioning link 11 is a pivot P2 that pivotally connects the link 11 and the bed fra-me head section H. The head section H of the bed frame B is comprised of parallel members 12 and a transverse spreader member 13. The parallel members 12 and the transverse spreader member 13 are provided with inwardly extending legs 12A and 13B respectively, to which the bed spring (not shown) is attached. The lower ends of the parallel members 12 of the head section H of the bed frame B are pivotally attached at P3 to parallel members 14 of the intermediate section I of the bed frame B. A head section restraining link 15 is provided to keep the head section positioning link 11 and the parallel members 12 of the head section H acute angularly disposed to each other through the initial movements of the bed frame B as it is being withdrawn from the davenport D (see Figs. 1 and 2). The upper end of the head section restraining link 15 is pivotally attached to the outer end of the head section positioning link 11 at P4. The lower end of the head section restraining link 15 is pivotally attached at P5 to an L lock upper operating link 16, hereinafter described. The inner end of the L lock upper operating link is pivotally attached to the head section pa-rallel member 12 at P8. From the illustrations, Figs. 2, 3, and 6, it will be observed that the head section restraining link 15 controls the angular displacement between the head section positioning link 11 and the parallel members 12 of the head section, retaining the link 11 and member 12 in controlled angular displacement (Figs. 2 and 3) until the parallel members 12 of the head section H and the parallel members 14 of the intermediate section I approach a parallel position as Ashown in Figs. 4 and 5.

A spring securing plate 17 is pivotally attached at P6 to the head section positioning link 11. Securely attached to the spring securing plate 17 are dual helical tension springs 18A and 18B. The lower ends of the tension springs V18A and-18B are secelyattached to an outwardly extending arm A Ion the lower portion of the mounting plate 10. The springs exert downward force `on the link 11 andassisttin thebalancing and in davenportframeF. 1 ik, "-"locking meansY is provided to secure the folded portions off tlebfedA frame dB when the lbedframe is compactedv within` the davenport frame F. Thel locking is positioned and actuated" by 'the relative positions l, of the head ,setionl-l, the intermediate section I, and the foldingY section; VFS of theY bedY frame B. The npper .portionof-he Ls'hapedloeking unitf20 isfpivotally'attachedtovthefoutei-end 'ofv the-LV lock upper operating link 16 at P7. .Injthefully compacted position ot the' bed iframe B, 'theiLf lock, upper operating link holds the ipperpotion 'ofthe-L shaped lock unit V20 forwardand secure overan lcrmtwardly extending boss 21 `located on thelowerend'offalocking 'bar 22 (Fig. 2). Also, in theV` fully compacted position of the bed frame YB, the lower portion ofthe `l..--s haper.l lock unit 20. isjheld towardfthe headof'therbed frame B by an L'lock lower f operatingA link 23, the lower portion of the L shaped Vloekbeing pivotally attached at P9 to theY inner end of the Y link 23;'the outer end of theV link 23 ispivotally attached to the parallel memberr24 of the bed frame folding sectionFS'at P14. As the L shaped locking unit 20 is locatedionthe outer-side of the parallel'member 14 Yof the intermediate sectionl `and the L lock lower operating link 23 isglocated'on therinnerV sideiof the parallelr mem- *in its fully compacted condition. This parallel arrangement is accomplished by'having the integral boss 21 on the locking bar 22 arrangedto impinge on the upper. edge of the parallel member 14 of the intermediate section I when theV bed frame is in a compacted condition.

When the bed frame is in a partly or completely com-j pacted condition, the locking bar 22is positioned at right angles to the parallelmembers 26 of the end sectironl-,Y ofthe bed frame B (see Pigs. 2, 3, and 4). However,Y

when the end section Emoves from the vertical position shown in Fig. 5 to a' horizontal position shown in Fig;

6, a locking bar operatinglink '28, which is pivotallyat- Y tached to the locking bar 22 at P13V and to the parallel member 24 at P14, functions to fold the locking bar to a position almost parallel to the parallel member 26 (see Fig. tant feature of my invention, for it eliminates all lprojections above the bed frame that would tendto injure the user Vof the davenport bed. The locking bar operating link also extends'across the pivot point P11 to pro- Vvide rigidity to the bedirame when the' bed traine B is in the fullyextended position.

To insure ease of Yoperation and definite positioning of the bed frame'B as it moves out of or into the davenport frame F, a combination of positioning links are provided (see Fig. 3). The positioninglinks are comprised of an L shaped support link 30 that is pivotally attached to the Y Y bed frame at P26.. The lower end of the L shaped support link 30 is'pivotally attached at P15 to a short positioning link 31 and at a point adjacent to the lower end, the positioninglink 30 is pivotally attached at P16 to a long positioning link 32. 'Ihe fixed end of the short positioning link 31 is pivotally attached at P17 to a positionlthe olding'section FS Vof the bed frame B, ,-to which the folding sectionjFS ispivotally attached at P10, at right :angles to the Yintermediate section VI of the bed frame dnring'folding of thebed frame B.' The-parallel Vmembers 14 ofthe intermediate Vsection lI areprovid'ed with imwardly.V Aextending `legs V14A to which Ythe 'bed Vspring (not showrUis attached; l e

' Parallel members 24gl of ltltejiolding section FS of the bed frame B are pivotally attachedto the parallel members 1449i the intermediate section I at P10. The folding 'section FSV is definitely positioned at right angles to the' intermediate sectionvl when the bed frame Bisin the partly Yor fully lcompacted conditionA (see Pigs. 2 and 3), by the L lock lower operating link 23, as described above. The same link V23 functions to hold theparallel units 24 and 14 injparallel alignment when the bed frame B is Vpartly or fully extended (see Pigs. 5 and 6). This is accomplished byarrangingthe L lock 'lowerl operating link to pass'beyond 'the pivot point P10 whenthe bedY frame isv extended'. 'inwardly Vextending legs 24A `on the parallel Vmembers 24 are provided for attachment of a bed spring (notshown). 'Y

[Parallel members 26 of theend section E ofV the bed frameB a're pivotall'yY attachedat P11 to theparallel members 24 of the folding sectionFS of the bed frame.

The outer ends of the parallel members 26 are. spaced byY a 'spreader tube 27. The bed spring .(not shown) is secured toinwardly extending legs 26A of the parallel members 26 and to the tubular spreader 27 of the bed frame. Pivotallyattachedat'PlZ rto the parallel member 26 is a locking bar 22,'as mentioned above,V This locking bar22 performs the dual function. of positioning an integral boss 21 that is secured by the L `shaped' locking unit 20,V as described above,` to secure -the bed frame VB when itis lin a compacted condition, VandY to definitely positionrthe intermediate I end E sections of the bed frame in Vparallel .arrangement when thebed frame B iS tioning link mounting plate 33. The fixed end of the long positioning link 32 is pivotally attached at P18 Vto the positioning link mounting'plate 33. It will be ob-V served from theillustrations (seeiFigs. 2, 3, and 4), that the positioning links 31 and 32 position the L shaped support linkY 30 so that the bed frame B, supported at P26, Y

moves through an arcuate path in its movement out of and into thedavenport frame F. The L shaped supe porting 'link30` changes itspo'sition as therbed'- frame B moves out'of the davenport frame F. The upper'por-V tion 30A, acting through a leg positioning 1ink`34, moves an intermediate section supporting leg 35pivotally connected to theparallel member 14 of the intermediate section l of the bed frame B, into position so that when the bed framerBis partlyrextended (see Fig. i3), or fully'ex-` tended y(see Fig. 6),Y it will substantially be supported,

The legV positioning link 34 is pivotally attached to the L Ishaped link 30 at P19 and to intermediate section support leg 35 at P20. When the bed frame B is Vbeing moved Yinto the davenport jframe', the L shaped support link 30 and leg positioning link-34 foldthe intermediate section supportV leg 35 so that when the bed frame is in its fully compacted condition within thefbedframe F, the-intermep diate section supportleg 35 lies'rparallel -with `the parallel member 14 ofthe intermediate section. A helical tension spring 37 pivotally attached at P421 to the positioning link `mounting plate 33 and to the L shaped ysupport, link 30 at P26 Vby way of the connecting link 38jis provided toV assist the operator in the movement V,of the bed kframey B out of and into the davenport frame.V The tension on and position of the helicaltension spring 37 tends to the Weight of the bed frame B in its various positions as it moves into or out of the davenport-frame B. vA spreader bar 36 i-s lixedly attached tothe intermediate section support legs 34. ,This spreader bar 36 adds rigidity tothe Ibed frameV -F and reactsV against the bed spring (not shown) that is attached to and supported by the bed frame B. y n

The davenport seat assembly is attached to andsupported by thegfolding sectionY FS and the end sectionrE of the bed frame whenthe bed-frame is lfully compacted (see Fig. 2), and ful/ly extended .(see Fig.V 6).'j When the bed- This folding of the locking means is an impor-V frame B is fully compacted within the davenport frame F, the bed -frame forms a substantial support for the davenport seat and the persons that may be seated thereon. Also, when the bed frame B is fully compacted within the davenport frame F and securely locked by the locking bar 22 and integral boss 21 interfitting with the L shaped locking unit 20, there is no false movement of the davenport seat S that would tend to annoy the occupants of the davenport while they are seated or when they rise from the davenport. When the bed frame is in the fully extended position (see Fig. 6), the davenport seat S is suspended beneath the bed frame B, out of the way. The davenport seat assembly S is supported and suspended at its front end by a Z shaped support 40 which is pivotally attached at P22 to the folding section parallel members 24 of the bed frame and fixedly attached to the seat assembly front spreader angle 41 at 42. Parallel side members 43 of the seat assembly are xedly attached at the ends of the spreader angle 41 and pivotally attached at P23 to the bed frame end section support legs 44. The end section support legs 44 are pivotally attached to the parallel members 26 of the bed frame end section E at P24. When the bed frame is being extended (Figs. 5 and 6), the seat assembly S acting as a rigid link between the pivot P22 and the pivot P23 causing the end section support leg 44 to assume a vertical position to support the end section E of the bed frame F (see Fig. 6).

When the bed frame B is being folded, the reverse of the operations described above takes place until the bed is yfully compacted within the davenport frame and the davenport seat is in position for use as illustrated in Fig. 2.

Although my invention has been described in considerable detail, such description is intended as being illustrative rather than limiting, since the invention may be variously embodied, and the scope of the invention is to be determined as claimed.

I claim as my invention:

1. A foldable bed frame for a sofa bed comprising head, body, folding section and foot sections pivotally connected in end to end relationship and adapted to be forwardly unfolded to a bed position wherein the sections are arranged in substantial coplanar relationship with the head and foot sections at the ends of the bed, the body section adjacent the head section, said folding section adjacent the foot section and being adapted to be rearwardly folded to a seat position wherein the foot section forms a seat cushion support and is parallel to and spaced above said body section with said head section extending upwardly and at right angles to said body section, a frame, a single head section positioning link connected at one end to said frame and its other end being connected to the head section of said sofa bed, an L-shaped lock, a head section restraining link having one end pivotally connected to said head section positioning link and its other end connected intermediate the ends of said L-shaped lock upper operating link, a mounting plate pivotally mounted to said head section positioning link, a spring mounted at one end of said mounting plate and its other end mounted to said frame, said spring being located between said head section positioning link and said bed section when said frame is in sofa position, a means to be engaged by said L-shaped lock upper operating link whereby said frame can oe held in lock position when it is in sofa position.

2. A foldable bed frame for a sofa bed comprising head, body, folding section and foot sections pivotally connected in end to end relationship and adapted to be forwardly unfolded to a bed position wherein the sections are arranged in substantial coplanar relationship with the head and foot sections at the ends of the bed, the body section adjacent the head section, said folding section adjacent the foot section and being adapted to be rearwardly folded to a seat position wherein the foot section forms a seat cushion support and is parallel to and spaced above said body section with said head section extending upwardly and at right angles to said body section, a head section positioning link, a spring securing plate pivotally mounted to said head section positioning link, a spring having one end connected to said securing plate and the other end connected to the bottom of an outwardly extending arm mounted adjacent the bottom of said davenport, a head section restraining link pivotally connected at one end to said head section positioning link, an upper operating link, said restraining link connected intermediate the ends of said operating link, and L shaped locking unit, one end of said upper operating link connected to said head section and the other end connected to said L shaped locking unit, a locking bar operating link having one end slidable in said body section and carrying one end of said L. shaped locking unit, the other end of said locking bar operating link being pivotally mounted to said folding section whereby said L shaped locking unit is compactly positioned adjacent said body section when said davenport is opened.

References Cited in the iile of this patent UNITED STATES PATENTS 2,634,427 Wodarsky Apr; 14, l953 2,661,485 Gursky Dec. 8, 1953 2,676,335 Goodman Apr. 27, 1954 2,770,814 Schindler Nov. 20, 1956

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