US2729280A - Chair seat fastener - Google Patents

Description

Jan. 3, 1956 J. B. ADLER CHAIR SEAT FASTENER Filed March 19, 1954 INVENTOR. JOHN B. A DLE'R 4 T ToR/VEX United States Patent 2,729,280 CHAIR SEAT FASTENER John B. Adler, Grosse Ille, Mich., assignor to Shw'ayder Brothers, Inc., Denver, Colo., a corporation of Colorado Application March 19, 1954, Serial No. 417,280 1 Claim. (Cl. 155-196) This invention relates to chair constructions and more particularly to a novel seat construction for a chair.

It is the object of the present invention to provide a novel construction of chair seat frame, together with a novel method of securing the seat to the frame.

It is the further object of the present invention to provide a novel chair seat structure wherein the chair seat platform is removably secured to the chair frame.

It is the still further object of this invention to provide a novel clip structure secured to the undersurface of the chair seat platform, and retainingly cooperative with the seat frame for removably securing the platform thereto;

These and other objects will be seen from the following specification and claim in conjunction with the appended drawing in which:

Fig. 1 is a side elevational view of a chair construction embodying the present chair seat mounting.

Fig. 2 is a section taken on line 2-2 of Fig. 1.

Fig. 3 is a fragmentary plan view on an enlarged scale illustrating the mounting and securing of the chair seat platform to the seat frame.

Fig. 4 is a fragmentary section taken on line 4-4 of Fig. 3; and,

Fig. 5 is a fragmentary right side elevational view of the structure shown in Fig. 3.

It will be understood that the above drawing illustrates merely a preferred embodiment of the invention and that other embodiments are contemplated within the scope of the claim hereinafter set forth.

Referring to the drawing the present chair seat is adapted by way of illustration to a folding chair such as shown in Fig. 1. However, it iscontemplated that the present seat construction could just as well be adapted to a non-folding chair.

In Fig. 1 the folding chair shown includes an inverted U-shaped tubular frame 11, whose depending end portions 14 define the front legs of the chair. The central upper portion of frame 11 as at 12 receives and retains the formed back-rest 13. 7

Intermediate the front legs 14 there ispositioned a horizontally disposed U-shaped tubular frame 15,. which is pivotally connected upon its opposite sides as by rivets 16 to the front legs 14.

There are also provided a pair of parallel upwardly and forwardly inclined rear legs 17, which are arranged upon opposite sides of rear portions of frame 15. Mounted upon the interior surfaces of each of said legs adjacent their upper ends is a bracket 18, suitably secured thereto at 19. The said brackets are pivotally connected by rivets 20 to rear portions of frame 15.

The upper ends of legs 17 have secured thereon the preferably rubber, caps 21, which in full open position of said chair engage rear portions of chair frame 11.

Links 22 are pivotally connected at 23 respectfully to upper portions of leg 17. The opposite ends of said links are pivotally connected at 24-to the front legs 14, above their respective pivotal connections with seat frame 15.

Plugs 25 extend within and are secured to the rear free ends of frame 15. Cross-bar 26 interconnects the free ends of frame 15 with end portions of said bar projecting into transverse recesses in said frame ends as in points 27 to thereby complete the frame structure.

Chair platform 28 is positioned upon and over the frame 15 and is secured to said frame by a series of clips 29, which are joined to the undersurface of said platform by the screws 30 or equivalent fastener as illustrated in the drawing Figures 2 and 4. Said clips at their one ends having retaining portions 31, which are positioned within the chair frame 15, in the manner hereafter described for effectively securing the said platform to said frame.

Angle elements 32, secured as at 33 to the under surface of platform 28, are also secured by the rivets'34 to frame cross-rod 26 as shown in Fig. 2.

The clips 29 adjacent one end have transverse apertures 35 which receive the screws 30, as shown in Fig. 4. The clip extends along the under surface of platform 28, towards its periphery and has a downwardly depending element 36 lying in a vertical plane which cooperatively' bears against the interior upright surface 37 of tubular frame 15.

7 Element 36 terminates in a horizontally disposed element 38 which extends through an adjacent horizontally disposed slot 39 formed in wall 37 of frame 15, which element 38 operatively bears against the bounding wall portion 40 of slot 39 for effectively securing the platform to the frame and for drawing the same tightly thereover.

The horizontal element 38 of clip 29 terminates in the vertically depending locking element 31 which is spaced inwardly of and parallel to inner wall 37 to thereby complete the chair platform mounting on frame 15.

There is formed within the interior surface 37 of frame 15 a series of spaced coplanar elongated slots 39 adapted to receive portions 38 and 31 of clips 29, which as shown in Fig. 4 secure platform 28 to the tubular seat frame 15.

I claim:

In a folding chair having a pair of front legs, a pair of rear legs and a seat between said pairs of legs and pivotally mounted thereon, said seat comprising a hollow tubular frame lying in a single plane, said frame having a plurality of spaced horizontally extending coplanar slots formed in its inner wall, a platform positioned upon said frame, and a plurality of locking clips secured upon the undersurface of said platform adjacent said frame, each clip being vertically offset below said platform extending horizontally through and retainingly positioned in an adjacent frame slot in operative engagement with a portion of said frame forming the top boundary of the slot,

and extending downwardly upon the interior of said frame adjacent its inner wall.

References Cited in the file of this patent UNITED STATE S'PATENTS

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