US2680473A - Folding chair - Google Patents

Description

June 8, 1954 J. B. ADLER 2,680,473 FOLDING CHAIR Filed Dec. 28, 1951 2 Sheets-Sheet 1 INVENTOR. 107/ B. 4049 BY fl flmaw June 8, 1954 J. B. ADLER FOLDING CHAIR Filed Dec. 28, 1951 MIT I 2 Sheets-Sheet 2 INVENTOR. Jay/M a. 4015/? transverse cross brace l1.

Patented June 8, 1954 FOLDING CHAIR John B. Adler,

tion of Colorado Grosse Ile, Mich., Shwayder Brothers, Denver, 0010.,

assignor to a corpora- Application December 28, 1951, Serial No. 263,733 2 Claims. (01. 155439) This invention relates to a folding arm chair construction and more particularly to a novel leg linkage therefor.

It is the object provide a novel leg linkage for a folding arm chair These and other objects will be seen from the following specification and claims in conjunction with the appended drawings in which:

Fig. 1 is a fragmentary perspective view of the arm chair in unfolded position.

Fig. 2 is a fragmentary side view of said chair in fully collapsed folded position.

Fig. 3 is a fragmentary side elevational view illustrating the leg linkage and connections with respect to the chair arm rest when partially folded; and

Fig. 4 is a fragmentary partially sectioned side elevational view of the chair illustrating the relationship of the legs and their connections with the chair seat, back rest and arm rest.

It will be understood that the above drawings invention, and that other embodiments arecontemplated within the scope of the claims hereafter set out.

Referring to the drawings, the present chair includes the formed generally rectangular seat I! and the upright formed generally rectangular back rest [2, which is hingedly connected to said seat as by the hinge connections I3 as shown in Fig. 1.

also interconnected at their lower ends by the The front leg I 4 on either side of the chair seat II is aligned with and in coplanar relationship with the corresponding rear leg IB.

Front legs M are arranged upon opposite sides of seat H and are pivotally joined to the said flange H as at I8 intermediate the front and rear edges of said seat. Legs l4 extend above pivotal connection I B and are pivotally joined at their upper ends to the respective arm rest l9 toward its forward end, said arm rest being at its rear end back rest l2 intermediate said back rests upper and lower longitudinal edges.

Bracket 2i depends from the interior undersurfaceof arm rest I9 and is adapted to receive legs l4, preferably within their upper ends.

Each of the rear legs I 6 is joined intermediate its ends as at 24 to the lower end portions of back rest 12 upon opposite sides thereof. Rear legs l6 extend upwardly above their pivotal connection 24 and are pivotally joined to the arm rest flange ill by the rear leg control links 26.

Each of the links 26 for the respective rear leg i6 is pivotally joined adjacent one end of the upper end of the rear leg as at 25. The opposite end of the link 26 is pivotally joined to the interior surface of the The cut away portion 30 permits a greater securing area for the bracket 2|, and at the same time provides clearance for the front leg [4 when the chair is fully collapsed.

Stop pins 3| project from the corresponding sides of legs l6 upon which link 26 is pivoted, and said stop pins 3| are adapted to cooperatively and retainingly engage a portion of link 26 to limit its folding movement when the chair is fully collapsed as shown in Fig. 2.

This pin 3| thus limits the pivotal movement of reopening of the folded chair.

The present rear leg linkage including the control link provides an improved pivotal connection for the upper ends of the rear legs for controlling their pivotal movements when the chair is colvisible and, therefore, does not detract from the appearance of the chair.

at point 20 to.

Nevertheless, a fully effective and improved linkage'is thereby provided for the rear legs of the chair to thereby maintain a rigid structure when the chair is fully opened for use and at the same time provide proper control connections for the rear legs to permit and facilitate the complete collapsing of the chair elements into substantial alignment as shown in'Fig..2 ofthe drawing. It will be noted from Fig. 2 that when the chair is fully collapsed, the arm rests l9, the legs 14 and 16, the seat H as well as the back rest 12 are folded into close compact substantially parallel relationship.

The rear leg caps 28 may be :non metallic, if desired, and constructed of rubberor-other-plastic material. In the preferred embodiment of the invention shown in Fig. .-1, the lower endsof the legs have secured thereon the rubber feet 32 to prevent slipping.

While the seat II and the back l2 have been separately describedand are hinged together as at I3, Fig. 1, it may be regarded as a seatback unit, which term is used in some of the claims hereafter set out.

Having described .my invention, reference should now be had to the claims which .fOHOW for determining the scope thereof.

1 claim:

1. A folding chair comprising a pair of rear legs, a pair of front legs, aseatpivotedintermediate its front and rear to said'iront legs and adapted to tilt therebetween, a back pivotally secured at its bottom to said rear legs and adapted to tilt therebetween, said back pivoted at its bottom edge to the rear edge .of said seat, said .front and rear legs extending upwardly above their :pivotal connections with said .seat and :back respectively, a pair of arms pivoted to the back, said arms adapted to fold .alongside 'the back and in substantial alignment with said rear legs, said arms being pivoted to the upper ends of said front adapted to tilt therebetween, a back pivotally secured at its bottom to said rear legs and adapted to tilt therebetween, said back pivoted at its bottom-edge to the rear edge of said seat, said front and rear legs extending upwardly above their pivotal connectionswith said seat and back respectively, a pair of arms pivoted to the back, said arms adapted to fold alongside the back and in substantial alignment with said rear legs, said arms being pivoted to the upper ends of said front legs, control links pivotally joined at their one ends to the upper ends of said rear legs respectively and pivotally joined at their other ends to said arms respectively, and a .stop pin projecting from the upper end of each of .said rear legs upon thesame side thereof as said link and spaced from its pivotal connection .with said leg forlimiting the relative pivotal movements of said rear leg and link upon collapsing of saidchair.

References Cited in the -file of this patent UNITED STATES PATENTS Number Name Date 1,520,641 ,Giard Dec. 23, 1924 1,985,823 Freedman Dec. '25, 1934 2,042,252 Freedman May 26, 1935 2,059,940 Freedman Nov. 3, 1,936 2,155,522 Adler Apr. 25, 1,939 2,525,876 Denny Oct. 1'7, 1950

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