US1896289A - Bed davenport - Google Patents

Description

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BED DAVENPORTl Filed July 17, 1929 2 Sheets-Sheet 2 Patented Feb. 7, 1933 l RUDOLPH COOPERSMITH, F ST. LOUIS, MISSOURI BED DAVENPORT 7 Application led July 17,

This invention relates to improvements in collapsibley beds that-may be opened or extendedto form a full size'bed or that may be closed or collapsed to form a davenport, couch, or equivalent elongated article. of furniture for seating purposes. Y Prior tothe present invention,- thebed bottom framel and associated mechanism had i been secured to the outer frame of the daven- 10 port in such manner that access thereto for the purpose of repairs or other reasons was inconvenient and awkward, and the bottom frame and the :mechanismeither had to be disassembled and assembledin the davenport frame,` or, when such assembly and disassembly could be eected outside of the davenport, the installation of these parts in the davenport frame or their removal therefrom was difficult and inconvenient. Accordingly, an object ofthe present invention isy the provision of a structure of this kind in which all parts shall be easily accessible and removable. Y Y 1 n In prior bed davenports inwhich' a pair of bed bottoms or frames were superposed 1n the frame or box of the davenport whenl other object of the present` invention is to f l obviate these disadvantages. 40

Another object of the present invention is the provision of a folding bed of this character in which the opened bed maybe closed by folding the section of mattress on the front bottom frame over the section of mattress on the rear bottom frame, and lifting the front frame. up and `back over .the front of the davenport and down thereintol in superposition tothe alsolowered rear frame, the entire operation Qbeing accomplished without interference of the front frame and 1929. Serial No, 378,860.

its legs with the folded mattress on therear frame. 1 v Anothe'robject of the present invention' is the provision lof .a bed of this characterin which the lifting of the rear frame is counterbalanced bythe simultaneous 'descent of the front frame. c

Ay further object of the invention is to provide a bed of this kind which will be stable in both vits open and closed positions.` Other objects, advantages, and desirable featuresv of the invention will appear in the course of' the following description of an illustrativeembodiment of the spirit thereof,

In the accompanying drawings forming 6,5 part of this specification, inwhich like numbers of reference denote like parts wherever they occur, Y p f Figure l isa plan view of the bed extended u or open, the davenpo-rt frame being shown in horizontal section' Y Figure 2 is an end elevation of the' some, showing fragments of the davenport frame to exhibit the connection ofthe bed bottoms and mechanisms with the said frame;

Figure 3 is a similar. viewjshowing the closed position of the bed in full lines, and all intermediate position in 'broken-and-dotted lines; y y Figure 4 is a fragmentary transverse sec- S0 tional view taken on the line 4 4 in Figure 2; Figure 5 is a fragmentary sectional view taken o-n the line 5-.5 in Figure 4; and

Figure 6 is a fragmentary enlargement View showing details of the catch andassociated parts for securing the bed bottom supports in the davenport frame. V

Brieiy described, the bed davenport comprises a davenport skeleton or outer frame l, ordinarily formed of wood inthe conventional manner, that supports and gives form to the' upholstering material with which it is covered, a base frame 2 supported in the davenportframe 1 so as to be bodilyremovr able therefrom, and a bed bottom formed of a pair of sections 3 and 4 connectedto each other and to the base frame 2 by suitable mechanism whereby the sections 3 and 4 may be superposed in the frame l or extended in side-by-side relation to'form a full-size open 100 termediate portions of the beams 8,- respectively, and corner braces 10 obliquely disposed in a vertical plane so asl to subtend the corners between the angle beam 7 and the rear uprights 5 and having their opposite ends secured to the beam 7 and the adjacent upright respectively. The front internal corners of the davenport frame 1 are lined with upright angle bars ,11, suitably secured to the frame 1 `as by screws or bolts 12, as shown in Figure 4, and having riveted or otherwise suitably attached thereto in the lower end of the front flanges 13 of said bars 11, the studs 14 projecting interiorly from said flanges and being preferably provided with heads 15 on their outer ends. The front flanges 16 of the uprights 6 are provided with notches 17 extending upwardly from their lower ends, said notches being adapted for receiving said studs 14.k The rear portions of the beams 8 are bowed outwardly at 18`to engage the outer frame 1 thereat, said engaging portions 18 beingprovided with notches 1,9, extending upwardly from their lower edges and adapted to receive screws 20 that project interiorly from the frame 1 thereat. The base frames2 is locked to the outer framel by catches 21 that areV pivoted at 22 to the inner sides of the bars 8 so that they may be swung into position for closing the.v lower ends of the notches 19,.'to lock the frames together, as shown in Figure 2, or into position for opening the lower AY ends of the notches 19, as shown'in Figure 6, thereby allowing base frame 2 to be lifted up out, of outer or davenport frame 1. The catches 21 are preferably in the formv of depending plates having notches 23 in one side thereof to receive the screws 20. The inner ends ofscrews 20 vare preferably provided with wing nuts 24 that may be turned to clamp the catches 21 in locking` or securing positions. Y v The rear bed bottom frame 3 comprises right and left angle bars 25 and 26, respectively, rigidly connected together by rear angle bar 27 and front angle bar 28. The front bedbottom frame 4 ,comprises'right and left angle bars 29 and 30respectively, rigidly connected together by rear angle barf31 and frontangle bar 32.'` Rear` angle bar 31 is positioneda slight distance forwardof the rear extremity of bars 29 and` 30, andthe horizontal flanges 33 of bars 29 and 30 are out away at their rear extremities to retract their rear edges 34 so that the frame 4 will clear the folded mattress 35 on frame 3 when these parts are in the position indicated by broken and dotted lines in Figure 3, which is the position of their closest approach to one another intermediate of the open and closed positions of the bed, yLevers 36, pivotedat 37 to the lower ends of the depending brackets orvhangers 9, comprise Aupwardly extendingfarms 38, having their upper extremities pivoted at 39 to the rear portionsof angle bars 25 and 26, respectively, and depending arms 40, having their lower extremities pivoted at 41 to one end of contractile helical springs42, theopposite'end ofwhich is pivoted at 43 to the lower end of the uprights 5. L-shaped-arms 44 are pivoted at one end at 45 to the lowerfportionI of the lateral flange .46 of the respective up,-

rights''; at theirlbends by pins 4T working in slots 48 in the front portion of thev bars 25v `and 26, respectively; and at their vother extremities by pins 49 atxed to the bar 44 andl working in slots 50V in the intermediate portions of the bars -29 andI 30, respectively.

49,.andthe forwardextremities of theseextensions 56 are pivoted at 57 `to the other extremities of the links 55. Thearms 44 are braced together' by a rod 58 in juxtaposition to the pivots 45, the ends of the rod being squared as at 59 toiit intosquare openings in the arms 44, and the'extremities 60 of these squared ends .being flattened. against the outer sides of the arms 44 in rivet-like fashion to make a rigid joint through which torque will be transmitted to the. rod 58 and therethrough to vopposite lever 44, whereby I" both levers 44 are compelled to rotate together, as best shown in Figures 4 and 5. Plates 61 are rigidly secured to ythe outer sides of the bars 25 and 26 behind the slots 48. Levers'62 are pivoted at 63 to the beams 8 intermediary of the hangers 9 and uprights 6, and the upper extremities of these levers are pivoted at 64 to plates 65,'rigidly secured to the rear extremities of the bars -29 and 3 30, respectively. Helical springs 66 and 67 are pivoted at one end at 68 and 69, respectively, to the bowedportions 18 of the beams 8, and at the otherend through the intermediacy of links 70 to the pins or studs 71 and72, respectively, rigidly secured to the arms '62 at points oppositely located from the pivots 63, so that the' springs 66jcontract while the springsv 67 expand, and vice versa.y

The bars 25,26, 27, and 28 of the rearframe l 3 may, of course,be provided with apertures 73 to receive the cross supporting wires '74 of a bed spring 75, which may be of any suitable or conventional type, and is indicated symbolically by the broken-and-dotted lines in Figures-1,2, and 3. A similar bed Spring 7 6 may be likewise borne by the bars 29, 30, 31,- and 32 of the front frame 4. Y Acovering 77 of the-usual tvpe may be placedover the spring 7 6, the ends being secured to `wooden blocks 7 8 and 79 secured to the undersides of the bars 3l and 32, respectively.

The construction of the bed having been fully described, its mode of operation will be readilyunderstood.- To close the bed from the open position exhibited by Figures l and 2, the portion of the mattress-35 lying on the front spring 76 is folded vover the portion of the Ymattress lying on rear spring 75 and the front frame 4 is lifted by raising its component bar 79. The ascent of frame 4 lifts pivots 49, thereby rotating arms 44 counterclockwise, as viewed in Figure 2, the frame 4,however, being maintained in a substantially horizontal position by the levers 62 through the pivots 64, the articulation preferably being such that the frame 4 is slightly inclined ltoward the rear during that phase ofits movement -indicated bybroken-anddotted lines in Figure 3. The counter-clockwise rotation of arms 44 shifts the front of rear frame 3 to the rear, rather than downwardly, at first, through the intermediation of pins 47, slot 48, and plates 61,'whose lower anterior corner 8() engages arms 44 by reasonl of the contractile tendency of springs 42. By reason of the initially rearwardly inclined position of arms 38, however, the backward movement of the frame 3 is accompanied by the depression of the pivots 39 and the tilting of the frame 3 to depress its rear end so that the latter will clear and pass underneath t-he bottom of the davenport back support or cushion 81. It will be observed that the frames 3 and 4 are separated by an intervening space when they are in the open position exhibited in Figures l and 2, and that this horizontal spacing of the frames is increased during the initial portion of the closing movement by reason of the horizontal component of the lifting movement of frame 4 being less than the horizontal componentof the simultaneous movement of frame 3. Moreover, at this stage, frame 4 is ascending, while the vertical component of the movement of the front end of frame 3 is practically nil. Each of these ,characteristics of the movements of the frames 3 and 4 is desirable as tending to preventinterference between the frame 4 and the folded mattress on the frame 3, especially at their points of closest approach, indicated in broken-anddotted-.lines in Figure 3. As the closing movement continues, rear frame 3'is lowered while front frame'4 is shifted. over the front wall-82 of the davenport frame land into po-- l sition in the-frame l directly over the rear frame 3, until the parts occupy the final closed positions indicated in full lines inFigure 3. In this positiomrear frame 3 is maintained in horizontal position, counter-clockwise tiltingl being prevent-ed bythe engagement of, the rear end of the frame 3 with the upperside of the horizontal flange 83l of bar 7 of frame 2, and clockwise tilting beingprevented-,by reason of the engagementof the upperanterior corner '84 of plates 61 with the arms 44.A Frame 41is, also, maintained horizontally whenin closedv position byreason of the engagement of arms 62 with the upper ends85 ofhangers 9 simultanenously with the engagement of arms 44 with the upper anterior-corner 84 of plates 61. The slots 48 and allow 'slight shifting ofthe pivotal connections thereatto compensate for slight inaccuracies of construction, and, also, allow for Variation of the distance between the pivots 39 and 47, and between the pivots 64 and 49, thereby permitting amore compact arrangement of -the mechanism with less liability of interference of parts than if the levers or arms 38, 44,' and62 had to be constrained to movements and positions imposed by the necessity .of maintaining unvarying and constant the said distancesthroughout thecycle of operations. p When the bed is open, as in Figures l and 2, the engagement of lower corner 8O of-plates 6l witlrarms 44 prevents frame 3 from being shifted too closev Vt'o- Vframe 4 :under the impulsion of springs`42, and washers-86 on pivot pins 64 engage the upper edge of arms 44 to Aprevent counter-clockwise tilting of frame 4, thereby` preventing further clockwise. lmovement of arms 44 when thelegs 53 rest on the floor 87.` The bed is, therefore, stable in both its open and closed positions, the weight of the front frame bearing on the arms 44-and. thereby preventing counter-clockwise rotation ofsaid arms, therebypreventing rearward movement of pivot 47 and, consequently, the descent of the-rear bottom frame 3. It will be observed thatthe interposition of the'plates 5l between thelegs 53 and bars y.29 and 30 enablesthe pivot points 52 to be lowered so that shorter legs 53 may be employed and a lower position of the pivot point 54 ob,

tained, thereby allowing the extension arms 56 and the links 55 to belocated below the level of the mattress on the spring 76 when the bed is open; and, when the bed 'is beingl straddle the folded mattress 35 4when the bedis being closedand while it is in closed position. It will, falso, be observed that-the bed cany be easilyopenechsi-nce both bedbottomV sections 3 and 4v are not llifted up together in the.l outer frame 1;]but, atthe beginning of' the opening movement, only upper frame 4 is lifted while 'lower frame 3 is merely being tilted; then, front frame 4 is shifted forwardly over the front wall 82 of the frame l and descends to the fioor on the outside of the davenport while the rear frame 3 ascends simultaneously, so that the weight ofthe front frame' 4, in descending to open position on the floor counterbalances the weight of the rear frame that is ascending at the same time. The weight of the rear frame 3, moreover, is counterbalanced by the springs 42; and the weight of the front frame 4, when being lifted in its rear position,'is counterbala-nced by the force exerted by stretched spring 67, spring-66 beingv slack, and when being lifted in its front position is counterbalanced by the force exerted by the stretched spring 66, spring 67 then being slack. When Y the bed is closed, the usual cushion maybe placed on the covering 7 7 on the upper spring 7 6, and the top ofthe cushion will not be unduly high because the spring 76 and frame 4 are lower when the bed is closed than they are when it is open. Furthermore, the frames 2, 3, and 4 and their connecting mechanisml may be quickly and bodily removed from the outer davenport frame l by loosening the Vwing nuts 24, shifting catches 21 to open the lower ends of notches 19, and thence lifting frame 2 up out of frame l. Repairs or .inspection of the parts or their disconnection from the other partsV of the structure may then be madek more easily since they are no longer so diiiicult of access as theymight be were it impossible to remove the frames 2, 3, and 4 from the davenport without first disorganizing the parts. U

Y Having thus fully described this invention, I hereby reserve the benefit of all changes in form, arrangement, order or. use of parts, as it is evident that many minor changes may be made therein 4without departing from the spirit of this invention or the scope of the following claims.

I claim:

l. In a bed davenport of the kind including a back support, a frame, a front and a rear bottom section, a pair of levers pivotally borne by the frame and pivoted to the rear of the front section, arm means pivotally borne by the frame at a fixed point and pivoted to the rear portion of said rear sec.-

" tion, and arm means pivotally borne by the 'f ganized to incline the rear portion of the front section upwardly to avoid engaging the lifted front end of the lrear section.

2. Ina bed davenport of the kind including a back support, a frame, a fiont and a rear bottom'section, a pair of levers p-ivotally borne by the frame and pivoted to the rear of the front section, arm means pivotally borne by the frame and pivoted to the rear' portion of said rear section, said arm means being inclined rearwardly when the sections are extended with relation to the frame, and means comprising a pair of L-shaped arms, one leg of each of said arms being pivoted to said frame, the other leg being pivotally connected to a portion of the front section, the elbow portion thereof being loosely pivoted to the front portion of the rear section, said L-shaped arms cooperating with said arm means to shift said rear section rearwardly and to cause the rear end of said section to be depressed to permit the passage of the latter underneath the bottom of the back support, said L-shaped arms and the levers being so organized to incline the rear portion of the front section upwardly to avoid engaging the lifted front end of the rear section.

3. In a bed davenport ofthe kind including a back support, a'frame, a front anda rear bottom section, lever means pivotally borne b y the frame and pivoted tothe rear of the front section, arm means pivotally borne by the frame at aY fixed point and pivoted to the rear portion of said rear section, and arm means pivotally borne by the frame and pivoted to one point to the front section of the rear section and at another point to a portion-of said front section, said arm means co-operating with the first named arm means to cause the rear end of said rear section to be depressed to permit the passage `of the latter underneath the bottomof the back support of the davenport,vthe secondnamed arm means and the lever means being so organized to incline the rear portion of the front section upwardly to avoid engaging the lifted front end of the rear section, said rear bottom section having means for engaging said second-named arm means to limit the rearward shift of the latter.

4. In a bed davenport of the kind including a back support, a frame, a front and a rear bottom section, lever means pivotally borne by the frame and pivoted to the rear of the front section, arm means pivotally borne by the frame and pivoted to the rear portion of said rear section, said arm means being inclined rearwardly when the sections are extended with relation to the frame, and means comprising a pair of L-shaped arms, one leg of each of said arms being pivoted to said frame, the other legbeing pivotally connected to a portion'of the front section, the elbow portion thereof being loosely pivoted to the front portion -of the rear section, -said 'L- shaped arms co-operating with said arm means to shift said rear section rearwardly and to cause the rear end of said section to be depressed to permit the passage of thelatter underneath the bottom of the back support, said L-shaped arms and the lever means being so organized to incline the rear portion of the front section upwardly to avoid engaging the lifted front end of the rear section, said rear bottom section having means for engaging said second-named leg of said L-shaped arms to limit the rearwar'dshift of the latter.

5. Ina bed davenport of the kind including a back support, a frame, a front and a rear bottom section, lever means pivotally borne by the frame and pivoted to the rear of the front section, arm means pivotally borne by the frame at a fixed point and pivoted to the `rear portion of said rear section, and arm means pivotally borne by the frame and pivoted to one point to the front portion of the rear section and at another point to a portion of said front section, said arm means co-oper'ating with the first-named arm means to cause the rear end of said rear section to be depressed to permit the passage of the latter underneath the bottom the back support of the davenport, the second-'named arm means and the lever means being so organized to incline the rear portion of the front section upwardly to avoid engaging the lifted front end of the rear section, said frame having means for engaging said lever means to limit their rearward swing.

6. In a bed davenport of the kind including a back support, a frame, a front and a rear bottom section, lever means pivotally borne by the frame and pivoted to the rear of the front section, arm means pivotally borne by the frame and pivoted to the rear portion of said rear section, said arm means being inclined rearwardly when the sections are extended with relation to the frame, and means comprising a pair of L-shaped arms, one leg of each of said arms being pivoted to said frame, the other leg being pivotally connected to a portion of the front section, the elbow portion thereof being loosely pivoted to the front portion ofthe rear section,

said L-shaped arms co-operating with said arm means to shift said rear section rearwardly Vand to cause the rear end of said section to be depressed to permit the passage of the latter underneath the bottom of the back support, said L-shaped arms and the lever means being so organized to incline the rear portion of the front section upwardly to avoid engaging the lifted front end of the rear section, said frame having means for engaging said lever means to limit their rearward swing. Y

7. In a bed davenport of the kind including a back support, a frame, a front and a rear bottom section, lever means pivotally borne frame and lpivoterA to rear of the' front section, arm-.means pivotally borne by the'frame and-` pivoted. to'th'erear y ating with the first-named arm means to :7.

cause therear end of said rear section to be depressed to permit the passage of the latter underneath the bottom of the back support of the davenport, the second-named arm means and the lever means being so organized toincline the rear portion of the front section upwardly to avoid engaging the lifted front end of the rear section, said lever means and frame being arranged so that the frame limits the rearward swing of the lever means, and said rear bottom section and said secondnamed arm means co-operating to limit the rearward shift of the latter.

8. In a bed davenport of the kind including a back support, a frame, a front and a rear bottom section, lever means pivotally borne by the frame and pivoted to the rear of the front section, arm means pivotally borne by the frame and pivoted to the rear portion of said rear section, said arm means being inclined rearwardly when the sections are extended with relation tothe frame, and means comprising a pair of L-shaped arms, one leg of each of said arms being pivoted to said frame, the other leg being pivotally connected to a portion of the front section, the elbow portion thereof being loosely pivoted to the front portion of the rear section, said L-shaped arms co-operating with said ein arm means to shift said rear section rearwardly and to cause the rear end of said section to be depressed to permit the passage of the latter underneath the bottom of the back support, said L-shaped arms and the lever means being so organized toincline the rear i rearward swing of the lever means, and said y rear bottom section and said second-named leg of said arm means havingco-operating conformations to limit the rearward shift of the latter.

9. In a bed davenport, a frame, a front, 1120 and a rear bottom section, lever means pivotally borne by the frame and pivoted to the rear of the front section, arm means pivotally borne by the frame and pivoted to the rear portion of said rear section, and arm means pivotally borne by the` frame and pivoted at one point to the front portion of the rear sectionand at another point to a portion of saidfront section, said lever meansland` frame having conformatlon co-operating-to limit the lrearward swingof the lever means,

and said rear bottom section and said secondnamed arm means having conformations cooperating to limit the rearward'shift of the latter. In testimony whereof I hereunto aix my signature.

'RUDOLPHv COOPERSMITI-I.

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