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Publication numberUS2146520 A
Publication typeGrant
Publication dateFeb 7, 1939
Filing dateMay 12, 1937
Priority dateMay 12, 1937
Publication numberUS 2146520 A, US 2146520A, US-A-2146520, US2146520 A, US2146520A
InventorsNathan Zimtbaum
Original AssigneeNathan Zimtbaum
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Reclining chair
US 2146520 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


Filed May 12, 1937 RWIW of E M w w A %m Patented Feb. 7, 1939 UNITED STATES;

'OIFFIYQE 1 can, nae-.1501

l This invention relates, to an improvement in reclining chairs and; has; for its: object,- the. pro: vision of a simple, sturdy-and effective means. whereby the back of the chair may be positioned at variousangles withgrespect to the seat and will, in each position of adjustment, be firm and secure.

More particularly, the invention contemplates the provision of a chair of this character provided with a simple arrangement of slots and guide pins by which any position of the back of the chair may be selected and securely held.

A further object of the invention is to provide a reclining chair of the character described wherein the movable back of the chair may be easily detached when desired from the body of the chair without the use of tools or dismantling of parts of the chair.

In the accompanying drawing wherein an embodiment of the invention is shown, Fig.1 is a vertical sectional view through the chair showing the means for holding the back in various selected positions of adjustment; Fig. 2 is a sectional view on the line 22 of Fig. 1, looking in the direction of the arrows; Fig. 3 is a detailed view in section of a portion of the frame of the chair showing the guide grooves and the manner in which the pins are moved therein to remove the back of the chair from its connection with the chair body; and Fig. 4 is a view similar to Fig. 1 showing the back removed from its engagement with the body or end member of the chair.

In the drawing, indicates the seatcushion of the chair, the same being of any suitable construction and being supported upon straps 2 which are engaged by. the springs 3 attached to the longitudinal rails 4 and 5 of the chair frame.

The longitudinal rails 4 and 5 co-operate with end members 6 and legs 1 and B to form the chair rame. The rear legs 8 are connected by bar 9 .nd extend upwardly to form arm portions II] to 'the top of each of which is attached an arm i 5 supported near its front end by the upright l2. The elements thus far described constitute the body of the chair, and it will be understood that the same may be made in various ornamental tion. Extendinglaterally-irom each of the end members l5;- oi the, back,- are two. guide pins l8 and IS. The lower pin I8 is adapted; to enter into the lower groove M and be guided thereby.

Upper groove 3 isproyided inits lower face with several spaced recesses indicated at 2|], 2| and 22, and guide pin I9 is adapted to be selectively introduced into one or the other of these recesses to thereby hold the back I5 in any desired inclined position of adjustment. The grooves I3 10 and [4 are each open at their inner end to permit the introduction of the guide pins l8 and I9 into them or the quick removal of the back of the chair from its engagement with these grooves whenever desired in a manner to be hereinafter pointed out.

In Fig. 1 the back of the seat is shown in its position of greatest inclination where it will be noted that guide pins l9 are each positioned in the rearmost recess 2|] of the grooves I3. Pin H3 is at'this point located well up in the groove M, or in the position indicated at in Fig. 1. As the groove |4 extends upwardly and has its upper closed end located adjacent to the recessed surface of the upper groove, it prevents any tendency of the lower end of the chair back to swing forward and thus by the co-operation of the pins l8 and IS with their respective grooves, the back is securely held in the position of inclination clearly shown in Fig. 1. To adjust the chair back to a more vertical position, it is swung forward to cause its pins Hi to seat in the recesses 2| of grooves l3. This is done by elevating the seat slightly to move pins l8 upwardly in groove hi and at the same time raise pins I9 out of the recesses 20. When the back is thus elevated, it is swung forward slightly on pins I8 as pivots and then lowered to bring pins l9 into recesses 2| at the same time causing pins I8 to be lowered slightly in grooves M. A still more vertical po- .sition of adjustment of the back, such as indie cated in dotted lines 26 of Fig. 1, is had by seating pins l9 in recesses 22.

When it is desired to completely remove the back from the chair, this is done by moving the seat back slightly upwardly to cause the pins l9 to be raised out of the various grooves 20, 2|, and 22 and then the entire back is swung forwardly in'the direction of the arrow'as shown in Fig. 3 to move pins l9 completely out of the open ends of the grooves H5. The position of the parts at this time is that shown in Fig. 3. When the pins H) are moved completely out of the grooves I3,

' the entire back may then be lowered, thereby causing pins l8 to move downwardly and finally forwardly out of the open ends of their guide grooves M. In the completely released position of the back as shown in Fig. 4, both sets of pins l8 and I9 are separated from their guide grooves M and [3 respectively, and the back may then be lifted away.

In replacing the back, the procedure just described is reversed. That is to say, pins l8 are first introduced into grooves l4 and the back is then raised to align pins IS with the open ends of grooves 13 whereupon the back is swung rearwardly to introduce pins l9 into grooves I3 and thereafter placed in any of the selected recesses 20, 2! and 22 to hold the back in any desired position of inclination.

With the arrangement shown, the back of the chair may be set in any selected inclined position and will firmly and securely remain therein until changed. No projecting parts are provided and the simple arrangement of guide pins and grooves herein described enables the chair to function indefinitely and be used with a great deal of satisfaction.

What I claim is:

In a reclining chair structure, a chair frame having end members, each of said'members having an inner face provided with a pair of grooves, one of said grooves in each pair being located above its companion groove, all of the grooves being open at their inner ends, the lower face of the topmost groove in each pair being formed. with several spaced recesses, a chair back having a projecting guide pin adapted to be positioned in any one of said recesses, the lowermost groove of each pair being upwardly curved toward its upper companion groove and having a closed upper end located nearer to the upper groove than is the open end of said lowermost groove, the chair back having a second guide pin for engagement with the lowermost groove, the'relative positions of the guide pins being such that when the first guide pin is disposed in any one of the recesses in the upper groove,the second pin will be disposed near the upper closed end of the lower groove, both of the pins being removable from their respective grooves and movable out of the open inner ends of said grooves to thereby disengage the chair back from the chair frame.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3090647 *Oct 28, 1960May 21, 1963Moore William PAutomotive suspension seat
US3103383 *Aug 14, 1961Sep 10, 1963Kratzer CaroleChair
US3845988 *Jun 19, 1972Nov 5, 1974W FleischEasy-to-assemble structure
US4521054 *Jun 14, 1983Jun 4, 1985Allibert S.A.Chaise lounge
US4561694 *Dec 20, 1983Dec 31, 1985Tachikawa Spring Co., Ltd.Reclining adjuster for car seat
US5671974 *Aug 2, 1995Sep 30, 1997Boycott; BrianFurniture coupling system and method
US6334652 *Aug 17, 2000Jan 1, 2002Link Treasure LimitedSeat with adjustable backrest
US20050082894 *Oct 21, 2003Apr 21, 2005Ching-Hui ChiStructure connection of motion chair
CN103625311A *Dec 5, 2013Mar 12, 2014上海延锋江森座椅有限公司Seat backrest hook locking structure for vehicle
CN103625311B *Dec 5, 2013Jun 22, 2016上海延锋江森座椅有限公司一种汽车座椅靠背挂钩锁止结构
U.S. Classification297/357, 297/440.15, 297/452.56
International ClassificationA47C1/026, A47C1/022
Cooperative ClassificationA47C1/026
European ClassificationA47C1/026