US2165529A - Foldable chair - Google Patents

Description

July 11, '1939. J, A, BARlE 2,165,529

FOLDABLE CHAIR Filed June 5, 1938 2 Sheets-Sheet 1 Fig.

Snventor E gw (I orneg J. A. BARIE FOLDABLE CHAIR luly 11, 1939.

2 Sheets-Sheet 2 Filed June 3, 1938 Alum Patented july 11, 1939 2,165,529 j FoLDABnE Cnam John A, Barie, lWest Waterloo Township, Black Hawk County, kIowa Application June 3, 1938, Serial No. 211,598

1 Claim.

vide means for coordinating its foldable or collapsible seat, tilting back support, and forward leg support in various combinations suitable for various postures of an user.

Another object of my improvements is to render the chair readily compactly collapsible by `coacting jointed rigid elements for extension, or contraction one upon another, for use or storage.

Another object of my improvements is to include ratcheting devices in the combination of elements, independently operable for different or related positions, assuring easy adjustments for any desired support of the body and members of the user.

These objects, together with others to be described, are achieved by the means which are hereinafter described, claimed and illustrated in the accompanying drawings.

It is to be understood that various modiilcations may be effected in the elements of the device and their coactions, without departing from the principles and protection of the invention.-

Fig. 1 is an extended side elevation of the invention. Fig. 2 is a front perspective view thereof. Fig. 3 is a rear elevation, as extended, of the wheeled chair, and Fig. 4 is a front elevation of the foldable chair as collapsed. Fig. 5 is a perspective of the foot-board hinge device.

It will be noted that in said Fig. 2 a portion of the limbsupporting apron is broken away, in order to thereby disclose -the position of one of the forward pair of ratchets.

In the respective figures similar numerals designate similar parts throughout the several views.

It should also be understood that this foldable chair may/be mounted upon caster wheels, or a combination of such with non-turnable wheels,

or be used without supporting wheels.

In my folding or collapsible chair or seat shown in the drawings are side frames, alike, and each having the following rigidly connected components, a base bar 2 and a top bar i, mounted at or near their ends by standards 3 and 4, and when desired by one or more intermediate bars as shown. lThese side frames when extended transversely have other and foldable or collapsible connections to be described. Each base bar 2 hasat its forward end adependlng rigidly mounted fork standards 3.

5, seating rotatably the pintles of a Wheel 6. The rear end of each base bar 2 has a rock-shaft 2i mounted thereon, the rock-shaft carrying an oiff set wheel Son an arm 8 rigid with said shaft, being a caster-wheel. 5

In Figs. 3 and 4 are shown respectively crossbars 29 and 30, medially pivoted together at 32, the bar 29 being straight, the bar 30 being bent oppositely at opposite sides of the pivot, but these bars may be otherwise shaped as desired. 10 The bar 30 has, at opposite sides of its pivot, pins 34 projecting across the bar 29 at opposite side edges of the latter to serve as stops thereagainst. The lower ends of said cross bars, as shown in Fig. 4, are pivoted to the lower rear faces of the 15 side standards 4. The upper free ends of said cross-bars are at each sideconnected rigidly by bars 29a and 30a, as shown in 2 and 3, and a exible seat strip 35 has its opposite ends carried about and secured to the bars 29a and 30a. 'Ihe 20 f ends on pivots 21, and a nexible back-rest 25 1s 30 connected at its side margins to the side bars I6.

On the rear of these sidebars I6 are mounted the rearwardly projecting handles I1.

Brackets I3, similar to said brackets I8, are fixed to project forwardly from the forward 3 Like forwardly directed arms III convergent forwardly are rearwardly pivoted on pintles on the brackets I3. The arms are connected by a flexible member I4. A medially hinged pair of foot rests II are. hinged to the .40 ends of said arms I0 as shown in Figs. 1 and 5, on pintles 42 between fixed arms 38 secured on the rests II by spring catches 3'I-3'Ia separably traversing slots 38a in the arms 38, and other arms 39 are pivoted on pintles 43 to the arms I0. 4

back-rest. A similar ratchet 2l on each of the arms Il and pivoted at Il, are engageable with inner parts oi' the links having their slots trav-v ersed by pins Ila on said arms as additional linking connections between the side frames.

When the ratchets 20 and 2l are released, the cross bars 20 and l0 may be collapsed as shown in Fig. 4 drawing the side. frames inwardly while the ilexible members between the arms I8, and the arms Ill are folded, the foot rest members Ii being folded when the Joint members 38 and I9 are disconnected. Fig. 4 shows the collapsed chair with its side frames collapsed-inwardly, but somewhat widely, in order to better display the intervening elements. 'I'he dotted lines in Fig. 3 serve to indicate how the hinged members 26 and 28 collapse toward each other in the process of moving the back rest members l toward each other. The exlble seat member also folds inwardly, as does the flexible leg rest member I4, and back rest member 25.

I claim:

In a foldabie chair. side supports, medially pivoted pairs of cross-members pivoted at their lower ends to the lower rear parts of said supports. a transversely foldable flexible seat member mounted on and across the upper-,ends of the crossmembers, transversely spaced arms plvoted for forward and rear movements at their lower ends on the rear medial parts of the side supports, `a transversely i'oldable flexible back-rest connected between said arms, means for collapsibly connectedly holding said arms apart when extended,

transversely spaced arms having their rear ends swingingly connected to the forward side supports to extend forwardly, a transversely foldable leg-rest connected between said arms, a foot-rest composed of hingedly connected members pivoted to said arms and transversely foldable together when collapsed, and coacting arms on the footrest members and said arms, with means for locking their free ends together releasably when the foot-rest members are extended angularly relative to said arms.

JOHN A. BARIE.

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