US1516778A - Chair - Google Patents

Description

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F. M. 'NAYSMITH cana Filed-March 15. 1924 2 Sheets-Sheet. 1

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BY V w ATTRNE Y N Nov, 25, 1924.

F. M. NAYSMITH CHAIR Filed llarch 15. 1924 2 Sheets-Shoot 2 A TTOR NE Y vm Q Patented Nov. 25, 1924.

FRANK M. NAYSMITH, OF KANSAS CITY, IVTISSOUIBJI.

CHAIR.

Application filed March 15, 1924.

T (4% whom it may concern:

Be it knownthat I, FRANK M. NAYsMrrH, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Chairs; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to chairs and pertioularly to a reclining chair, the purpose of the invention being to provide a chair which can be adjusted for either a. sitting position or a reclining position without the necessity of utilizing pawls, ratchets, racks, pinions or other operating mechanism. The chair is so constructed that it will have a certain poise or balance, adapting it to swing with the natural swing of the occupant so that the occupant may shift his or her position in a natural way, accomodating itself to the change of position.

The novel construction of the invent-ion will be apparent by reference to the following description in connection with the ac companying drawings, in which Fig. 1 is an end elevational view of a chair constructed in accordance with my invention.

Fig. 2 is a front elevational view of the same.

Fig. 3 same.

Fig. 4 is a vertical. longitudinal sectional view through the chair.

Fig. 5 is a detailed fragmentary view through the foot rest and its connecting means, and

Fig. 6 is a detailed perspective view of one of the back brace bars, the seat rail and part of one of the rear legs showing the stop for the back brace bar supporting rod which also supports the rear of the seat rails.

There are four legs'l, 2, 3, and 4. The legs are pivoted as at 5, the legs 1 and 3 being complementary rear and front legs on one side and the legs 2 and 4 being com plementary rear and front legs for the opposite side. These legs are properly spaced by rounds or rods 6 and 7 The rear legs is a rear elevational view of the Serial No. 699,451.

preferably carry castors 8 and similar cas tors 9 are provided for the front legs. The seat 10 is supported upon the seat frame consisting of the two side bars or rails 11 and 12. The front portions of the rails 11 and 12 are supported upon the upper ends of the legs 1 and 2 by'rivets 13. The rear of the frame is supported on the pivots 14 and 14 which extend through the lower ends of the two side bars 15 and 16 of the back 17.

The back is supported by the back bracing side bars 18 and 19 which are pivoted to the bars 15 and '16 by rivets20. The lower ends of the brace bars 18 and 19 are loosely mounted upon a transverse rod 21 which extends entirely across the chair and which is removably supported upon the baci: legs by the hook shaped stops or rests 22 and Mounted on the rod 21 are two links 24 and 25., each of which is provided with an elongated slot 26 through which a transverse rod 27 carried by the front legs 3 and 4v extends. The upper ends of the front legs 3 and 4 are connected to the transverse rod 27 on the seat by links 23 and 29, so that when the back 17 is raised or lowered to swing the seaton 13, the front legs 2 and 4 will also swing.

A leg rest 30 consisting of two side bars 31 and 32 are pivoted to the two side arms 33 and 34 at 35, the side arms being supported by the pivots 20. The two side bars 31 and 32 are supported on the rivets 13 and they preferably carry a leg supporting plate 36 intermediate their ends and at their lower ends there is a transverse connecting rod 37. The inner ends of the leg rest sup porting bar are links 38 and 39 to which are secured foot rest supporting bars 40 and 4l carrying a foot rest. The foot rest is best shown in Fig. 5' It is illustrated as consisting of a metallic pipe or tube 42 which is received in recess 43 in the members 40 and 41, the members 40 and 41 being held tight against the ends of the tube 42 by a bolt 44 which runs entirely through the tube. The tube is preferably covered by some soft material such as rubber to provide a resilient covering 45. The rod 37 may also be substantially the same construction as that shown in Fig. 5, that is it may be made up of a tube, with a rubber covering and fastened by a bolt similar to the bolt 44. The upper face of the seat is preferably curved as indicated at 46 to conform to the anatomy of the occupant and the back is preferably curved inward as at t? for the same reason.

The several elements of the chair structure are so arranged and balanced, one with respect to the other that the occupant of the chair may sit upright or lean back without liability of the chair becoming over-bah anced as is liable to happen with those chairs which depend simply upon locking devices for holding the parts in position. When the occupant leans backward to tilt the back 17 in a rearward direction, the lower ends of the side bars 15 and 16 push the side bars 11 and 12 forward which carry the seat 10 and at the same time the lower ends of the side hars 15 and 16 of the back 17 shift the arm rests 33 and 3 rearward to tilt the leg rest and foot rest upwardly to conform to the requirements of the pedal extremities of the body. Each part balances or counter-balances by properly adjusted parts so that the chair may be shifted to any proper angle of inclination by simply bending forward or backward while the occupant is in the chair and while I have found such a chair particularly applicable for use as an invalid chair, it admirably serves as a rest chair and it can be used as a reading or sewing chair, merely by having the occupant to lean forward enough to cause the back to approach a vertical position in which position the back part of the seat 10 will be slightly lowered.

From the foregoing, it will be apparent that the chair may be used as a reclining chair with the seat and back adjusted to any angle at the option of the occupant and that this adjustment is due to the poise or balance of the movable parts, therefore the adjustnirents can be made through the action of the body of the occupant so that the chair will accommodate itself automatically to the shifting position of the occupant and it is also important that the chair can be folded so that it will occupy a relatively small space for storage, shipment or the like.

hat I claim and desire to secure by Letters-Patent is 1. A reclining chair comprising front legs and rear legs, the front legs being pivoted to the rear legs intermediate their ends, a

seat frame pivoted to the front ends of the rear legs, a back pivoted to the rear end of the seat frame, back supporting braces pivoted at their upper ends to the back, a rod to which the braces are connected, seats on the rear legs for receiving the rod, links carried by the rod and having slotted portions, a rod connecting the front legs and extending through the slotted portions of the links and connections between the upper ends of the front legs and intermediate portions of the seat frame.

2. A. reclining chair con'iprising front legs and rear legs, the front legs being pivoted to the rear legs intermediate their ends, a seat frame pivoted to the front ends of the rear legs, a back pivoted to the rear end of the seat frame, back supporting braces pivoted at their upper ends to the back, a rod to which the braces are connected, seats on the rear legs for receiving the rod, links carried by the rod and having slotted portions, a rod connecting the front legs and extendin g through the slotted portions of the links and connections between the upper ends of the front legs and intermediate portions of the seat frame, a leg rest pivoted to the front of the seat frame and arm members having loose connections with the upper ends of the leg rests and with the back.

3. A reclining chair comprising front legs and rear legs, the front legs being pivoted to the rear legs intermediate their ends, a seat frame pivoted to the front ends of the rear legs, a back pivoted to the rear end of the seat frame, back supporting braces pivoted at their upper ends to the back, a rod to which the braces are connected, seats on the rear legs for receiving the rod, links carried by the rod and having slotted portions, a rod connecting the front legs and extending through the slotted portions of the links and connections between the upper ends of the front legs and intermediate portions of the seat frame, a leg rest pivoted to the front of the seat frame and arm memhers having loose connections with the up per ends of the leg rests and with the back, and a pivoted foot rest carried by the lower end of the leg rest.

In testimony whereof I affix my signature.

FRANK M. NAYSMITH.

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