US2146865A - Studio bed - Google Patents

Description

Feb. 14, 1939. E. J. STAUFFR Er AL 1411865 STUDIO BED Original Filed 0G11. 13, 1936 3 Sheets'-Sheet l i 6. e 1 1, Nm @W f M@ @mi mvm/ 5 1l Nm) I. l! w N wmmm@ @w S9) 1 EL@ MW R31 1cm, NW @m Feb. 14, 1939. E. J. sTAur-'FER ET AL STUDIO BED Original Filed Oct. 13, 1936 3 Sheets-Sheet 2 Feb. 14, 1939. v E. J. STAUFFER ET AL 2,146,855

STUDIO BFID Original Filed Oct. 13, 1956 5 Sheets-Sheet 3 Patented Feb. 14, 1939 UNITED' STATES PATENT GFFICE STUDIO BED Original application October 13, 1936, Serial No.

Divided and this application July 28,

1937, Serial N0. 156,152

5 Claims.

This invention relates to improvements in studio beds and consists of the matters hereinafter described and more particularly pointed out in the appended claims.

The invention relates to a type of davenport or divan which includes a supplemental frame normally telescoped within the main frame of the davenport, but capable of withdrawal for the purpose of extending the main frame to provide a bed.

The object of the invention is to provide legs for the supplemental frame at its back side, which is adjacent to the main frame When the supplemental frame is in extended position, which legs are automatically .folded up out of the way when the supplemental frame is returned to its normal position in the main frame, and are automatically brought to vertical supporting position when the supplemental frame is withdrawn from the main frame to its outerlimit of movement.

These and other objects and advantages of the invention will appear more fully as We proceed with the specification.

This application is a division of an application led by us October' 13, 1936, Serial No. 105,388.

In the drawings:

Figure 1 is a top plan view showing the main frame at the right and the supplemental frame at the left as they would appear When'entirely separated, but with the supplemental frame in alignment with the main frame as in the pathl it would follow when being moved into and out of the main frame.

Figure 2 is an end view of the supplemental frame,

Figure 3 is an end View showing the supplemental and main frame, with the supplemental frame Withdrawn to its limit from the main frame.

Figure 4 is a perspective View of the back side of the supplemental frame,

Figure 5 is a perspective View of the front side of the main frame.

Figure 6 is an end view of the main frame, with the supplemental frame pushed into its normal position entirely Within the main frame and showing in dotted lines the rails and mechanism connecting the two.

Figure 7 is a detail perspective view to be more fully described hereafter in the specification.

Figure 8 is a plan sectional view on an enlarged scale showing the details of the mechanism at one end of the supplemental and main frames.

Figure 9 is a view representing a section of Figure 8 in a plane indicatedby the line 9-9 of Figure 8.

Figure 10 is a detail view of a locking device included in the mechanism.

Figure 11 is a sectional view showing said locking device in position.

Figure 12 is an end elevation of a part of the mechanism in the position occupied as the one leg of the supplemental frame begins to be folded up by the operation of the mechanism when returning the supplemental frame to the main frame. v

Referring now to that embodiment of the invention illustrated in the drawings: I0 indicates the main frame of a studio bed and II, a supplemental frame adapted to be telescoped laterally thereinto. The main frame comprises end members I2, I2, back and front members I3, I4, mounted on pedestals I5, I5, which support the main frame. The supplemental frame II comprises end members I6, I6 and front and back members Il, I8. Supporting legs I9, I9 are xed to the front members Il. These parts are all of familiar construction and need no further description. Like housings y20, 20 are mounted at the back cornerson the end members I6, I6 of the supplemental frame Il. An equalizing rod or shaft 2l, located below theV plane of and near the frame member IB, is rotatively mounted in saidv housings. l22, 22 indicate ratchet wheels fixed on said shaft 2I within said housings. The shaft 2l projects at its ends, as indicated at 2Ia, beyond said housings for a purpose presently to be described. A hook-like keeper 23 is pivoted in each housing adjacent the ratchet wheel 22 therein on a pin 24, so as to be capable of an up-and-down swinging movement in a plane parallel to said ratchet Wheel (see Figures 10 and 11). Said keeper has a laterally disposed tongue 25 which is adapted to engage between the teeth of Vsaid ratchet wheel when the keeper is permitted to drop by gravity. This locks the ratchet Wheel and also the equalizer shaft 2| against rotation. When this hook end 23a is engaged from below in a manner to be later described, th-e keeper 23 is swung upwardly on its axis pin 24 so as to release the ratchet wheel 22.

On the ends of the main frame are provided horizontal metal channels 21, 2l which provide ways for the housings 20, 20 when the supplemental frame II is telescoped into the main frame IU. Each channel 21 has a bottom ilange or rail 28 provided with holes 29 spaced longitudinally of the rail, adapted for engagement as a rack with the teeth of an associated ratchet wheel 22. The holes 29 in the rails 28 on the two ends of the main frame are disposed in lines extending parallel to the front andV back members of the main frame. Thus, when the ratchet wheels 22 are engaged in said holes and the supplemental frame is pushed inward or outward with reference to the main frame, the equalizing shaft 2|, rotating with said ratchet wheels, will insure an identical equal movement of each end member I6, |61 of the supplemental.

frame with reference to each end member I2, I2 of the main frame. Y

The front ends of thexrails 28l are inclined` downwardly, as indicated at 23a, 28a (see Figures 3 and 5) and the web of the channel of each Way is formed to provide an abutment 30 at the end f; said inclined part., and; at One Side Off the. line of the ratchet holes 29, in a position to be struckjbyA the associated end 2Ia of the equalizing shaft-.the two., abutments acting to arrest and limit the withdrawal movement of the supplemental frame from the main frame.

Short plates 28h, extend parallel to the downturned` ends 28a of they rails 28 andare spaced above the same, so that when the housings 20 are pushed backward. into the ways provided by the channels 21, the ends. 21a of the equalizer bar willn engagethve bottom edges of said plates and be held s o that the ratchet wheels 22Y are held in engagement with the rack presented by the holes 29 on the rails 28. The plates 5281 terminate short of the abutments 30` to leave spacesrfor the passage of the projecting. ends 2 la of the equalizer bar 2| and the engagement of the ratchet wheels 22 with the ratchet holes 29 in the rails 28 when first assembling and connecting the supplemental frame with the main trama In this operation the hooked ends 23a. of the keepers 2 3 engage the inclined ends 28a and are lifted so as to disengage the lateral tongues 25 of said keepers from their respective ratchet wheels 22., which are then free to rotate. The channels 21, 211 have top horizontal rails 30a, providing the top of the ways in which the housings 29, 20 travel and each housing has struckv up from it a lug 3h! (see. Figuresl and 11) for guiding engagement with said top rail, which holds the associated ratchet wheel in operative engagement with thebottom rail after the shaft ends.

ends Zia. have passed rearwardly` beyond the plates 2817.

32, 3,2. indicate legsr pivotally mounted upon the end members I6, I3 ofthe supplemental frame at points spaced forward ofthe housings 29, 20. 33, 33' indicate angle plates having` upright memb ers 33a, 33a secured, respectively, to the end members I6, |6 of the supplemental frame and horizontal members 331233bi secured, respectively, tothe bottom sides of said end members and the back members, Each. leg 3,2 is pivoted to an upright member 33a of the angle member by a loose, rivet 34. A horizontally, movable latch plate 35 is pivoted by a rivet 36jto. the horizontal member of each plate 33. Said latch plate is notched on its edge to provide spaced, opposed shoulders 31,V 31, which are adapted to engage opposite edges ofthe associated pivoted leg 32 and lock it in verticalposition. Each latch plate is provided with a depending ange 38 formed to present` front and back cams 39Y at its opposite Each latch plate is normally held in engagement with the inner face of the associated leg 32 by means of a coiled spring 40 taking between an ear 4| iixed to the horizontal member 33h of the angle plate 33 and the depending ilange 38 of the latch plate 35. At the top of each leg 32 and extending towards the associated housing 20, is provided a heel 42. A laterally extending shoulder 43 on the angle plate 33 limits the swinging movement of the leg 32 towards Vthe back by its engagement with the top side of said heel.

44, 44 indicate plates xed to and rising above the front member |4 of the main frame in a line of travel of the heels 42 of the legs 32 and of the cams 39, 39 of the latch plates 35. (See Figures 1- and 5.)

The end member IG of the supplemental frame have xed to their outer faces near the front of the supplemental frame, inclined plates 41- having notches 46 (see Figures 2 and 3), which notches are adapted to engage the top edgest of the plates 4,4, 4 4 on the main frame, when the supplementall frame has been pushed fully home into the `main framethe bottom edges ofthe` plates 41 sliding up on the topedges ot the plates 44 toraise the front of said supplemental frame until the plates 44 come abreast of the notches 43 when the front end of the supplemental frame drops With said notches 46 in locked engagement with the plates 44.

'Ifo assemble the supplemental frame with the mainframe, with the operatingdevices hereinbefore described properly connected, we proceed as follows: Consider the two frames arranged in alignment, asin Figure 1f, with the supplemental frame supported on its legs |9 and 32. The back of the supplemental frame is brought to position in close proximity to the main frame, with the ends 2 Ia of the equalizer bar above the spacesbetwen the plates 28h and the abutments 39 at the front end of the'channel bars 21. The back end of the supplemental frame is then dropped. This brings the ratchet Wheels 22, 22` intol engagement with the holes 29 of the rack rails 28. vIn this way an. identical tooth in each ratchet wheel Vis brought into engagement with the end hole 29 of the rack bar. At the same time the hook end 23a` of each keeper 23 Vengages the rail end 28a and lifts the keeper, thus disengaging the tongue 25 from the associated ratchet wheel 22, leaving the ratchet wheels and equalizer shaft 2| free to rotate.

The supplemental frame is now pushed into the main frame. In the first part of this movement, the rear cams 39A of the latch plates 35 strike the sides of the upright bars 44, as illustrated in Figure 1. This swings the latch plates 35 away from the legs 32, so as to free said legs for pivotal movement. As the supplemental frame is further pushed into the main frame, the legs 32 strike the top edges of the upright plates 44 on the main frame and are swung upwardly on their pivots 34 to horizontal position,--the latch plates being maintained in inoperative position by reason of the engagement of their flangesA 38 as they pass along in contact with the vertical edges of the upright plates 44.

In the further movement of the supplemental frame into the main frame, the bottom ends or the rollers thereon of the legs 32, ride on the rails 28 of the channels 21. The movement of the supplemental frame is continued until it has been shoved fully home into the main frame. Just as or before it reaches this position, lugs 45 extending from the rails 28 near the backmain frame member I3, are struck by the heels 42, now in vertical instead of horizontal position. In the movement oi the supplemental frame into the main frame, the latch plates 35 have been held from engaging position by the legs 32. lll/'hen the heels are struck as above described, the legs are disengaged from the latches and the heels come into locking position between the .shoulders 3l, (il of the latches 35 to hold said legs in a position above the rails 28, so that when the supplemental frame is withdrawn from the main frame, said legs will not strike the upright plates 44 at the front side of" the main frame (as shown in dotted lines in Figure 6). Just as the supplemental frame reaches its innermost position within the main frame, it is locked in this telescoped relation by the engagement of the notches e5 0n the inclined plates 41 with the upright plates 44 on the main frame.

To reverse the operation and bring the supplemental frame into extended relation, the front side of the supplemental frame is rst lifted to disengage the notched plates 41 from engagement with the plates 44. The supplemental frame is then withdrawn,-the legs 32 in this withdrawal movement finally passing above the plates 44. When the supplemental frame has almost reached its outermost position, the forward cams 3Q on the latch plates strike the plates 44 and disengage the latches from their locked relation with the heels 42 of said legs. This permits the legs to drop by gravity towards vertical position and as the heels 42 pass the plates 44, the bottom ends 42a, of said heels strike or drag over the top ends of said plates 44 and act to complete the swing of the legs S2 to vertical position in which the legs are arrested by the engagement of the heels @2 with the lugs 43. The legs are then locked in this position by the latches 35 which swing to engage them between the shoulders 3l of the latches. The withdrawal movement of the supplemental frame is arrested by the equalizing shaft ends 21a striking the abutments 3 at the ends of the channels 21.

It will be obvious from the foregoing that from the time the supplemental and main frames are assembled and their operating mechanisms connected, in any movement of the supplemental frame, either into or out from the main frame, a parallel relation is maintained between the two frames and that there is no possibility of distortion of the ends of the two frames at any time. The proper assembly is insured by the spaces between the abutments 30 and the plates 28 at the forward ends of the channels, which enforce the engagement of like teeth of the two ratchet wheels connected by the equalizer bar into identical and corresponding holes 29 in the ratchet rails 23, and the equalizer bar maintains identical and equal rotative movement of the ratchet wheels as the supplemental frame is pushed into or out of the main frame.

While in describing our invention we have reierred to certain details of construction and arrangement, it is understood that the invention is in no way limited thereto, except as may be pointed out in the appended claims.

We claim as our invention:

1. In a studio bed having telescoping main and supplemental frames, and means providing ways in said main frame to receive said supplemental frame, legs pivoted to said supplemental frame, each leg being provided with a heel and depending toe, stops on said supplemental frame to limit the rearward swinging movement of said legs, plates on the main frame adapted to swing said legs upward as the supplemental frame is telescoped into said main frame, spring-controlled latches adapted to engage said legs when in vertical position and to engage said heels when said legs are in horizontal position, front and rear cams co-operable with said plates to disengage said latches, said ways on the main frame near their rear ends adapted-to be engaged by said heels to bring them into locking engagement with said latches.

2. In a studio bed having telescoping main and supplemental frames, and means providing Ways in said main frame to receive said supplemental frame, legs pivoted to said supplemental frame at the rear, each leg being provided with a heel having a depending toe, plates on the main frame for engagement with said legs to swing them towards horizontal position when the supplemental frame is being telescoped into said main frame and for engagement with said depending toes to complete the final movement of said legs to vertical position when the supplemental frame is withdrawn from the main frame, spring-controlled means for locking said legs in vertical position and for locking them in horizontal position, iront and rear cams co-operable with said plates to disengage said spring-controlled means, and means carried by said Ways on the main frame near their rear ends adapted to be engaged by said heels to bring them into locking engagement with said spring-controlled means.

3. In a studio bed having telescoping main and supplemental frames, and means providing Ways in saidv main frame to receive said supplemental frame, gravity-controlled legs pivoted to said supplemental frame Vat the rear, coacting devices on said supplemental frame and said main frame for completing the swinging of said legs to Vertical position vvhen the supplemental frame is withdrawn from said main frame and for swinging said legs towards horizontal position when said supplemental frame is telescoped into said frame, spring-controlled latches adapted to lock said legs in vertical position and in horizontal position, coacting devices on said supplemental frame and said main frame for disengaging said latches in the initial movement of the supplemental frame into the main frame and in its final movement of withdrawal with respect to said main frame, and means carried by said ways near their rear ends adapted to complete the swing of said legs to horizontal position as said supplemental frame completes its movement into said main frame.

4. In a studio bed having telescoping main and supplemental frames and means providing ways in said main frame to receive said supplemental frame, gravity-controlled legs pivoted to said supplemental frame at the rear, said legs each having a heel with a dependng toe, stops on said supplemental frame to limit the rearward swinging movement of said legs, plates at the front of the main frame adapted to be engaged by said legs to swing them upward as the supplemental frame is telescoped into said main frame, horizontally swinging latches adapted to be engaged with said legs when in vertical position and said heels when said legs are in horizontal position, front and rear cams fixed to. said latches adapted to engage said plates to disengage said latches, said Ways being provided near their rear ends with lugs adapted to be engaged by said heels to bring said heels into locking engagement with said latches, and said toes being adapted to and means carried by' lngagesaid plates to complete thernal movement Of'said legs to vertical position when said supplemental frame is Withdrawn to its iinal outward position.

5. In a studiobed having telescoping main and supplemental frames and means providing ways in said main frame to receive said supplemental frame, pivotal legs mounted on said supplemental frame movable from Vertical to horizontal position, latches for locking said legs in either posi- Y tion, means for disengaging said latches from said legs in the initial movement ofthe supplemental frame into said main frame, means operative to swing said legs from vertical to horizontal postion on the inward movement of the supplemental frame, and means operable as the limit of the outward movement of the supplemental frame is reached for insuring a reverse swing of said legs to a vertical position in locked engagement with said latches.

EDWARD J. STAUFFER. ADOLPH KNOSHER.

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