US 1437771 A
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Description (OCR text may contain errors)
APPLICATION FILED FEB.8.1922.`
1,437.771. Patented Dee. 5,1922.,
TJ 5 E Patented ec.. 5, i922.
ihttlll er n i c HARRY MINTZ, F BOSTON, MASSACHUSETTS.
pplication filed February 8, 1922. Serial No. 534,968.
T o all whom t may concern.'
Be it known that l, HARRY MINTZ, a citizen of the United States of America, and resident of Boston, in the county of Suffolk and State of Massachusetts, have invented new and useful Improvements in Davenport Beds, of which the following is a specification. f
This invention concerns folding vbeds of that kind commonly known as davenports and relates more particularly to devices of the type wherein the mattress supporting frame comprises complemental parts of `substantially like dimensions, one of which is movable and overlies the other and relatively fixed part when the device is used as la couch or day-bed, the movable part being so arranged as to permit it to be drawn outwardly from off the other part of the frame whereby substantially to increase the width of the. device for use as a bed.
lt 'iis usual to employ a two part mattress with `a bed of this kind, and when used as a day-bed or couch one half of the mattress When however, the frame is extended to form a full size bed, the mattress is unfolded and covers both halves of the iframe. So unfolded, the mattress overlies the rear or inner edge of the extended portion of the mattress supportingframe, such edge then being adjacent to the front edge of the fixed part of the frame. lf with the parts thus positioned, the edge of the movable frame member be spaced substantially above the plane of the fixed frame, an undesirable ridge will be formed the mattress at this point, while the engagement of the rear edge of the metallic frame member with the under surface of the mattress tends to wear the. latter very rapidly resulting in the formation of holes in the covering at this point long prior to any substantial deterioration of the cover in other places.
ln order to facilitate the extension of the movable frame it is common to provide it with rollers adjacent to its rear edge, the front edge having depending legs provided with casters which serve to support it when extended. rllhe frame is thus very free to move outwardly and tend-s so to move fwhen the occupant seated thereon leans against the back rest. Moreover, if the occupant sits on the front edge ofthe couch the tendency isto tilt the rear part of the movable is foldedv over and rests upon the other..
frame upwardly, swinging its legs beneath the couch.
The principal object of the invention is to provide for overcoming the above noted defects common to beds of this type and as one mode of accomplishing this object, depressions may be formed in the forward portions of the end members of the fixed frame in which the rollers carried by the movable frame may seat as such movable frame nears its fully extended position. The rear edge of such frame may thus be made to coincide substantially with the'plane of the fixed frame, thus eliminating the formation of a ridge in the mattress and the tearing or abrasion of the same, while at the same time permitting the employment of antifriction rollers between the parts. rllhe forward part of the movable frame may also be provided with shoe members or runners which slide over and rest upon the front portion -of the fixed frame when the movable frame is in normal unextended position, thus providing the friction necessary to prevent accidental extension of the movable frame member and at the same time providing an elongated bearing or support for the frontpart of such frame whereby tilting of the/same i-s prevented.
ln the shipping of folding beds of the class to which the present invention relates,
and in which the back rest usually projects above the ends, it is desirable so toconnect the back rest to the frame as to permit it to be folded down over the mattress supporting frame. rlhis connection however, preferably should be of such characterl as to permit the back `rest to be properly and operatively positioned upon arrival of the bed at its destination without necessitating the services of a mechanic or the employment of independent connecting devices such as may be lost during transit or mislaid after arrival. A further object of the invention, is accordingly, to provide simple and easily operable means for permanently connecting the back reist to the bed frame in such a manner as to permit it readily to be folded for transport, but which at the same timev will serve to securely retain the back rest in upright position for use.
ln' the accompanying drawings, there is shown by way of example one mode of attaining the above object, and in which- Fig. 1 is a vertical, transverse cross sec'- tion through the frame of the bed looking toward the end thereof from the inner side;
Fig. 2 is a vertical cross section longitu dinally of the bed and in the plane of line 2-2 of Fig. 1, but showing the opposite end of the bed;
Fig. 3 is a view similar to Fig. 1 but showing the bed extended, the covering for the end of the bed and the back rest being removed;
Fig. 4 isa fragmentary detail plan vieuT of the forward end of one of the side rails of the fixed mattress-supporting frame;
Fig. 5 is a fragmentary end elevation of the frame, illustrating a preferred form of connection for securing the back rest thereto; and
Figs. 6 and 7 are detail views illustrating a further modified form of connection.
The frame of the bed comprises a pair of front leg members 1 and a. similar pair of rear leg members such as 2. These members may be formed of metallic pipe or tube, or
may be of any other desirable material, and are preferably provided with foot members 3, 4, respectively. Arm rests such as 5 are secured to a front and rear leg at each end of the device, such arm rests being of any desired construction and forming no part of the present invention. The several legs are connected together by a fixed, mattress-supporting frame, comprising front and rear rails 8, 9, and end rails such as 10, these rails being arranged to form a substantially rectangular structure. The end rails 10 preferably consist of angle bars rigidly or otherwise secured as indicated at 11 to the respective legs. The front and rear rails are preferably of tubular construction having their springs 13 which serve resiliently to connect the mattress-supporting fabric 14 to such end rails.4 This mattress-supporting fabric may be of any well known construction such "as the hair-pin fabric commonly employed l for this purpose. The rails 10 project to the rear beyond the legs 2 and to their free eX- tremities are secured brackets 16 to which is pivoted the back-rest 17 indicated in broken lines in Fig. 1. This back-rest-may be of any desired construction and may be omitted entirely if it should be desirable so to do. Near their forward ends the horizontal flanges of the end rails 10 are provided with elongate openings 18. These openings are preferably formed by a punching ope-ration whereby tongues 19 are produced which are integrally united at their rear ends as indicated at 20 to the metal of the flange. These tongues are inclined downwardly and forwardly from their junctions with the flanges as indica-ted at 21 and their forward portions 22 extend in a substantially horizontal direction being spaced a predetermined distance below the under surface of the flange. The horizontal flange of each end of rails 10 is also provided with an elongate slot 23 extending inwardly from the forward end thereof.
A movable` mattresssupporting frame is also provided, this frame comprising end rails 24 connected at theirforward ends by means of a front'. rai] 25 and having depending brackets connected by means of a second rail 27. rl`he end rails 24 of the movable frame are so arranged that their vertical flanges are directed upwardly.
Awhilethe horizontal flanges thereof 4extend inwardly and serve for holding the springs 26 by means of which the mattress-supporting fabric. 26a is positioned. To each of the end rails 24 near its rear end is secured a bracket 27@l having journalled therein an anti-friction roller 28. These rollers 28 rest upon the upper surfaces of the respective end rails 10 which serve as guides therefor, and the rollers are of such width and so positioned that when the movable frame is drawn forwardly the rollers pass down the inclines 21 of the respective tongue members 19 until they rest upon the horizontal portions 22 thereof. Depending from the front of the movable# frame are legs 29 which are connected to the end rails 24 of such frame by means of braces 30. At their lower ends the legs 29 may be provided with Casters 31 of usual' construction. At each end of the movable frame is arranged a shoe I or runner 32 secured as by means of rivets 33 to the respective legs 29. These shoes comprise substantially flat pla-tes whose lower edges are rearwardly and upwardly inclined as indicated at 34, such edges terminating in curved portions 35.
In the normal position of the parts the movable frame is superposed upon the fixed frame, occupying the position shown in Fig. 1. In this position the two-part mattress rests upon the fabric 26a of the movable frame and as so arranged the device may be used as a couch or day-bed. When the parts are thus positioned the rear end of themovable frame is supported by the movable rollers 28 which rest upon end rails 10, while the forward edge of such frame is supported by the shoes 32 whose lower edges 34 bear upon the forward portions of the end rails 10. As
- end of the bracket.
the edges 34 engage such end rails frictionally, they tend to oppose any forward sliding of the movable frame relatively to the xed frame, so that the parts remain in normal position. rllhe bearing afforded by' the shoe 32 also serves to prevent any tendency of the movable frame to tilt when the occupant sits upon the forward edge ofthe same, as might happen were such frame supported merely by the rollers 28 and the casters 31. When in this position the mattress-supporting fabric 26a lies in a plane substantially above that of the supporting fabric 14 carried by the fixed frame. When, however, the movable frame is drawn forwardly, as indicated in Fig. 3, the rollers 28 pass down the incline 21 until they rest upon the horizontal surfaces 22. yl`his permits the rear end of the frame to drop relatively to the xed frame so that the rear portion of the mattress-supporting fabric 26a is brought substantially into the plane of the fabric 14, the supporting surface of the two frames thus constituting a substantially continuous and uninterrupted surface. After the frame is extended as just described, the mattress may be unfolded whereby to form a bed of full width, one portion of the mattress lying upon the fabric 14 and the other section resting upon the fabric 26a. Little, if any ridge is formed in the mattress at the junction of the two supporting fabrics, nor does the rear edge of the fabric 26a lie in such a position as to cause abrasion of the mattress covering where it engages the same. When it is again desired to employ the device as a couch or day-bed, the mattress is merely folded over on the movable frame. The latter is pushed rearwardly, the roller riding up the incline 21 onto the upper surface of the rail 10. Upon continuing the movement of the frame the curved surface 35 engages the ends of the rails 10 and serves to guide the edge 34 into bearing relation thereto, so that in the final position the parts are arranged as seen in Fig.. 1. l
lin the modified and preferred arrangement indicated in Fig. 5, one rear leg of the frame is indicated at 2a, the end cross bar at 10, and the brace therefor at 12. In this case the upstanding bracket 16a is provided with a pair of elongate slots 40 and 41, the latterv of such slots being open at the upper llhe end member 42 of the back rest frame is provided with a pair of pins or rivets 43, 44, normally arranged ,'*within the slots 40,A 41, respectively. ln the Y position indicatedfin Fig. 5, the backrest 42 is retained securely in upright position by the engagement of the two pins in the respective slots, but if it be desired to swing the back rest forwardly over the mattress supporting fra-me it isnnerely necessary to lift suchback rest vertically until the pin 1444 .is disengaged from the slot'v41, whereupon the back rest frame may be swung about the pin 43 as a pivot until it is brought into substantial parallelism with the frame on which the mattress is supported. llt is to be understood that a similar arrangement of parts is provided at'the opposite end of the back rest frame.
Referring to Figs. 6 and 7, a further arrangement whereby the back may be secured to the frame is illustrated. ln these figures the cross bar of the frame is indicated at 10b. To the rear end of such cross bar is secured an angle-iron comprising end flanges 5() and 51, the flange 5() being secured to the vertical flange of the bar 10b by means of rivets such as 52. Associated with this angle-iron is a second angle-iron comprising the flanges 53, 54. rllhe flange 53 is secured against the flange 50 of the first angleiron by means of a rivet such as 55, the two angle-irons as thus connected forming a vertical channel. Wfithin this channel is arranged a bracket comprising the vertical flange 56, and the horizontal flange 57, the vertical flange being secured to the flange 50 of the first named angle-iron by means of a rivet 58. rlhe ange` 57 of this bracket constitutes a bottom for the aforementioned channel. rlhe end members of the back piece are slipped down into the channels thus provided at either end of the frame, until the lower ends of such back piece members rest upon the respective bracket flanges 57. rll`he back piece is thus secured in upright position for use but may be removed by lifting it out of engagement with the channels.
`While the tongue member 21 has been indicated as integral with the rail 10, it is evident that it might be yformed as an independent element while the same result might well be attained in other ways, as for example, by bending the end rail downwardly to form the desired depression near its forward end. lt is also clear that the friction shoes 32 might be formed in other ways and that the movable frame might bev constructed in any other and desired manner without in any way departing from the spirit of the present invention. lit is also Vention has been shown as applied to a. frame of metallic construction, the principle involved is equallyapplicable to frames to be understood that while the present inantifriction roll carried by a lmember of one yof said frames and engaging a member of the other thereof, said roll normally serving l to hold the frames in vertically spaced relation, said latter frame member having a depression therein for the reception of said sin roll whereby the `supporting surfaces of said frames may be permitted to lie in substantially the same plane when said roll is seated in said depression.
2. A bed comprising a fra-Ine having an end rail provided with an elongated opening therethrough, a forwardly inclined tongue member integrally united to the rail at the rear end of said opening and projecting downwardly through said opening7 and a movable frame member having a supporting element resting upon said rail and movable downwardly along said tongue member linto said opening.
3. A folding bed having a fixed mattresssupporting frame provided with spaced end rails, each of said rails having a downwardly and forwardly inclined member adjacent its frontI end and forming a. continuation of its upper surface, said inclined members at their lower ends merging into substantially horizontal element-s, a movable frame normally overlying said fixed frame and having antifriction rollers adjacent to its rear edge, said rollers resting upon the respective end rails of the fixed frame and being movable downwardly along the inclined members thereof, and means for supporting the forward edge of said movable frame when extended.
4. A bed of the class described comprising a fixed frame, a movable frame normally superposed thereon, antifriction means for supporting said movable frame at its front and rear edges respectively, and friction means interposed between said frames when in normal superposed position and constructed and arranged to opposefree sliding of said upper frame.
5. A folding bed comprising a fixed frame and a movable frame normally superposed thereon, said movable frame having depending legs provided with casters at its forward edge and antifriction rollers adjacent to its rear edge, said rollers resting upon the fixed frame, and a contact -shoe carried by the movable frame adjacent to its forward edge and constructed and arranged to rest upon the fixedframe and to form a support for the movable frame when the latter is in normal position.
G. A bed of the davenport type comprising a fixed frame and a movable frame normally superposed thereon, antifriction means for supporting said movable frame to slide forwardly relatively to said fixed frame, and a contact shoe carried by the movable frame and having a rearwardly and upwardly inclined lower surface constructed and arranged to ride up on the fixed frame upon rearward sliding of the movable frame into normal position.
7. A device of the class described comprising a pair of rectangular, mattress-supporting frames, one of said frames normally being supported upon the other, antifriction rollers interposed between the rear edge portion of the movable frame and resting upon the end rails of the lower frame, casters for supporting the front edge of the movable frame, and a pair of contact shoes carried by the movable frame adjacent to its front edge, said shoes having elongate bearing surfaces constructed and arranged to rest upon the forward part of the lower frame when said movable frame is in normal