US2719574A - Tablet arm chair - Google Patents

Description

Oct. 4, 1955 J. B. ADLER TABLET ARM CHAIR 2 Sheets-Sheet 1 Filed Feb. 24, 1953 INVENTOR. JoHN B. AOLE A-r-ron NEW Oct. 4, 1955 J. B. ADLER 2,719,574

TABLET ARM CHAIR Filed Feb. 24, 1953 2 Sheets-Sheet 2 JOHN B. ADLER.

ATTORNEY.

United States Patent TABLET ARM CHAIR John B. Adler, Grosse 'Ile, Mich 'assignor to 'Shwayder Brothers, Denver, "Colo 'a corporation of Colorado Application February 24, 1953, Serial'No. 338,309 1 Claim. (or. 155-125 This invention relates to folding chairs, and more particularly to a tablet arm chair.

It is the object of the present invention to provide a novel and Simplified tablet arm chair.

It is the further object of this invention to provide a tablet arm for a folding chair together with an extremely simplified mechanism for connecting the tablet arm thereto, whereby the tablet arm will foldably collapse upon folding movements of the chair.

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

Fig. 1 is a side elevational view of the tablet arm chair.

Fig. 2 is a plan view thereof.

Fig. 3 is a fragmentary view of the tablet arm taken on line 33 of Fig. 1.

Fig. 4 is a fragmentary view of the present tablet arm chair taken on line 4-4 of Fig. 1; and

Fig. 5 is a side elevational view of the chair illustrating its fully folded and collapsed position.

It will be understood that the above drawings illustrate merely a preferred embodiment of the invention, and that other embodiments are contemplated within the scope of the claim hereafter set forth.

Referring to the drawings, the present tablet arm chair includes an inverted U-shaped tubular frame 11 whose depending free ends 12 and 13 define the front legs of the chair. Rubber feet 14 are secured over the floor engaging ends of legs 12 and 13.

Within the upper portion of the frame 11 is a formed back rest 15. The formed seat 16 with depending peripheral flange 17, terminating in the inwardly rolled edges 18, as shown in Fig. 4, is positioned between the front legs 12 and 13 and pivotally connected therewith by the rivets 19 which extend through legs 12 and 13 and through the flanged portion 17 of said seat.

Spacers 20 are mounted around in rivets 19 between the seat and said legs for centering said seat with respect thereto; rivets 19 being connected to said seat intermediate the front and rear edges thereof.

Parallel spaced rear legs 21 and 22 with rubber feet 14 at their lower ends and preferably rubber caps 23 at their upper ends, are positioned upon opposite sides of seat 16 and pivotally connected therewith at its rear by the rivets 24. Here also spacers are mounted upon the rivets 24 and interposed between said seat and said rear legs for attaining a correct spaced relation.

The links 25 upon opposite sides of the chair are pivotally joined at their one ends to rear legs 21 and 22 by the rivets or other connecting means 26, and are pivotally connected at their forward ends to intermediate portions of front legs 12 and 13, as by the rivets 27.

It appears from the drawings that front legs 12 and 13 are inclined upwardly and rearwardly, and in the preferred embodiment shown in Fig. 1, the rear legs 21 and 22 are inclined forwardly upwardly in alignment with the plane of corresponding front legs 12 and 13 2,719,574 Y 'Patented Och 4, 1955 ICC .2 respectively. When chair is fully opened as shown in Fig. l, the rubber stops 23 in : legs 21 and 22 cooperatively engage the undersurfac'es-of the front legs 12 and 13. 1

The above description pertains to-an armless folding chair, and a tablet arm 28 is provided therefore of the shape shown in Figs. 72 and I3. Plate 29 secured -to the undersurface of said tablet'arm at its rear end by the fasteners 30, has a'bifurcated stirrup 31 which overlies a portion 'of the front leg 12 above the seat 16 and is hingedly connected thereto by the pivot pin or rivet '32.

To complete the tablet arm construction, there is pro-v vided a U-shaped -link.:40.with laterally directed free end portions 41 and 42 which are pivotal ly joined respectively to the corresponding undersurfaces of said tablet arm and seat towards their forward ends, in the manner hereafter described.

A :pair of transversely arcuate brackets .33 and 34 are secured to the undersurface of tablet arm 28 as by the fasteners 35 and 36 towards the forward end of said tablet arm. Said brackets are adapted to cooperatively receive and journal the laterally directed end portion 41 of link 40 for connecting the same to said tablet arm. Transversely apertured brackets 37 and 38 depend from opposite sides of seat 16 and are secured to the inner surface of the seat flange 17, as by the rivets 39. The other laterally directed free end 42 of the U-shaped link 40 is positioned substantially across the undersurface of seat 16 and is journaled and supported through the spaced brackets 37 and 38.

By this construction, there is provided a very effective linkage between said seat and said tablet arm for maintaining a parallel relationship therebetween in open position, as shown in Fig. 1.

It is apparent from an examination of Figs. 3 and 4 that the free end 41 of link 40 is shorter than the free end 42, which is shown extending entirely under seat 16.

The free ends 41 and 42 at their outer ends have slightly enlarged caps 43 and 43' for securing the link 40 in position against lateral sliding in one direction, as shown in Fig. 4. The arcuate inner portions of link ends 41 and 42 prevent transverse movement of said link in the opposite direction.

The present tubular link 40 is therefore fully effective for maintaining the correct relationship between tablet arm 28 and seat 16, and it is apparent that the end portions 41 and 42 of link 40 have swivel connections between said tablet arm and seat to facilitate folding and collapsing of the chair into the storage position shown in Fig. 5.

In order to collapse the chair, the seat 16 is lifted in the direction of the arrow in Fig. 1 until said seat passes a parallel relationship with the link 40; after which the tablet arm may be manually tilted downwardly as indicated by the arrow in Fig. 1 to effect complete collapsing and folding to the position shown in Fig. 5. The relationship of the link with the arm and seat is such that the chair can only be collapsed from fully opened position by the initial manual lifting of the front end of the seat 16.

This same relationship between the arm, the link and the seat, effectively maintains the chair in the collapsed position shown in Fig. 5. The chair may be reopened from the position shown in Fig. 5 by the manual upward tilting of the tablet arm 28 from the vertical position of Fig. 5 to the horizontal position shown in Fig. 1.

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

I claim:

In a folding chair, an inverted U-shaped tubular frame defining parallel spaced upwardly and rearwardly inclined front legs, a back rest within the upper end of said frame,

a pair of parallel spaced rear legs rearwardly aligned with said front legs respectively inclined at an acute angle to said front legs with the free upper ends of the rear legs supportably engaging the front legs, a horizontally disposed seat positioned between said front and rear legs pivotally joined at its rear to said rear legs and pivotally jointed intermediate its front and rear to said front legs, links pivotally joined at their one ends to portions of said rear legs below their free upper ends, the other ends of said links pivotally joined to intermediate portions of said front legs, a horizontally disposed tablet arm arranged above and at one side of said seat with the rear end of said arm pivotally joined to one of said front legs towards its upper end, a recumbent U-shaped link, one leg of said link being longer than the other, brackets upon the under surface of the tablet arm towards its forward end cooperatively receiving the short leg of said link, and transversely apertured brackets depending from opposite sides of said seat towards its forward end cooperatively receiving the long leg of said link, the pivotal connection of the seat and link being forwardly of the pivotal connection between the seat and front leg, and the distance 7 between these connections being less than the distance between the link connections with the seat and arm so that upon upward tilting movement of the seat the arm will tilt downwardly after the pivotal connection between the seat and the link passes dead center between the other two pivotal connections.

References Cited in the file of this patent UNlTED STATES PATENTS 993,493 Young May 30, 1911 1,744,736 Berman Ian. 28, 1930 1,789,295 Bauer Jan. 20, 1931 1,864,750 Moore June 28, 1932 2,155,522 Adler Apr. 25, 1939 2,262,500 Johannsen Nov. 11, 1941 2,452,182 Clawson Oct. 26, 1948 FOREIGN PATENTS 15,343 Great Britain 1889 332,064 Great Britain July 17, 1930 707,831 Great Britain Apr. 21, 1954

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