US1571538A - Folding chair - Google Patents

Description

Feb. 2 1926. 1,571,538

. J. CABLE FOLDING CHAIR.

Filed Nov. 25, 192-; 2 Sheets-Sheet 1 J. L. CABLE FOLDING CHAIR Filed NOV. 25, 1924 2 Sheets-Sheet z Patented Feb. 2, 1926.

- JULIUS L. CABLE, or nos'ron', MASSACHUSETTS.

FOLDING CHAIR.

Application filed November 25, 1924; Serial No. 752,088.

To all whom it may concern:

Be it known that I, JULIUS L. CABLE, a citizen of the United States, and resident of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Folding Chairs,.of which the following is a specification.

This invention relates to folding chairs and more especially to a type of chair which is constructed entirely of metal and has a non-flexible seat and back.'

Chairs of this type have usually been constructed of wood, and some of the -objcctions to such chairs are that they are not adapted to fold' as compactly as desired, and also lack durability.

The objects of my invention are to providea form of folding chair of the type above indicated which shall have its legs and back frame constructed of semi-tubular metal, and which shall have great strength and durability for its weight, and shall be adapted to be folded into a form having a thickness but slightly greater than the thickness of one of the legs.

I accomplish these objects in themanner' hereinafter described and as illustrated in the accompanying drawing in which a preferred embodiment of my invention is shown and in which: v Fig. 1 is a perspective view of a folding chair, constructed accordiiig to my inven tion.

, Fig. 2 isa side elevation thereof.

F 3 is a detail sectional view of the seat connection.

Fig. 4 is a detail perspective view of the connecting slide between the legs.

Fig. 5' is a-deta-il sectional view of the pivotal connection between a pair of legs.

Figs. 6 and 7 are side and edge views of the: chair in folded position.

Fig. 8 is a sectional view at line mw of Fig. 1. a

of the seat back Figs. 9 and 10 are detail views of aform (if foot which I employ.

As illustrated in the drawing. the chair comprises two pairs of legs 1, 2 of semitubular metal, the front-legs 1 being connested by'a brace 23 and the rear legs by a brace 4, of similar metal; Each pair .of legs arepi'votally connected at their middle portionsby means of an angle plate, or

'tion 5,

' extent necessary,

angularly shaped bracket formed of a single piece of metal bent to provide a base porwhich is pivoted to the leg 1 bya bolt .i extending through the sides thereof, a middle portion 5*, which extends at right angles to the 'base portion, and an end portion 5" whicl1 extends reversely parallel to the base portion and has a cylindrically shaped head, or slides 5 at its end which is slidably mounted inth'e middle portion of the rear leg 2, as shown in detail'in Figs. 4 and 5. 'The end portions of the rear legs 2 are semi-cylindrical, except that the upper end portions thereof, through which the pivot pin 7 passes into the seat'8 to'con-- ncct the leg thereto, is somewhat flattened, and the edge portions of the sides of the legs 2 are inturned between said semi-cylindrical portions, to slotted cylindrical portions 2 adapted to receive the cy-lindrically shaped head 5, which, when the parts are assembled, may be inserted therein from the bottom end of the leg and may'slide freely therein to the the'portion 5 of the bracket extending through the slot formed between the edges of the strips of which the legs are formed. A cross pin 12 isarranged in each leg 2 in position to be engaged by the head 5 when the chair is unfolded to limit the unfolding movement of the legs. The seat 8 is pivotally connected at its rear end to the upper ends of the legs 1 by means of brackets 14, which are rigidly connected thereto, and by pivots 15 which pass through the legs and the end portions of said brackets. The seat is preferably formed of thin sheet metal and has a depending flange extending about its front and side edges to which the bracket 14 is connected by rivetsand in which the pivot 7 is are parallel and a a'ptedto be telescopicallyfitted within the upper end portions of the legs 1 and said pivot bolts 15, which conform longitudinally nect the brackets 14= .and legs 1, are also for the bottom ends of the legs, is illustrated which comprises a flat base portion 22 of- V ingfolded up againstthe ness of the space occupied is greatest wheretheir open sides facing downwardly, and a passed through'the open sidespf the"frame 16 and thro'ughan elongated opening 18 in the middle of the opposite sides there, so

that the back frame is pivotally connected to the legs 1, but is permitted to have a short longitudinal movement 'therein. 'A sto gaged the pins 20, as shown inthe dotted line position in Fig. 2, in which position the front sides of the frame will engage the inner side of the legs 1, and, actin in con junction with pivots 15, will hold t e frame from swinging backward. Also, ifit is de sired to have the back held in a position in which it is inclined forwardly from the position of alignment, the frame is pulled upward slightly, so. that its ends are dlsengaged from pins 20 and then it is swung forward sufficientlyv to clear them, and pushed downward until the upper ends of the slots or openingslB engage the p1ns'15, and then it is swung rearward until its end portions engage the sides of pins 20, as shown in the full line position of Fig. 2, orthe'lposition of Fig. 1. The'cliair ack may 't us beheld, when in use, at either inclinat on shown.

In Figs. 9 and 10a form of foot piece,

moulded rubber, and, an inclined stem 23 which is extended into the semi-cylindrical end ortion of the legs and secured .therein by rlvets 24. Asthus held, the edges of the legs bear on the upper sideof the foot,'so that the legs cannot directly engage the floor.

The chair is folded in the same manner as similar chairs of this type, the seatbeack, causing the heads 5? to slide within the leg portions 2" and the legs to be-folded, so that they lie,

in approximately the same plane, as shown in Figs. 6 and 7, in which position the thick the seat is folded against the back,'so that when the chairs are folded and stacked in alternate relation, ,2 large number may be held in a comparatively small space. 3 Iclaim-- -1. A folding chair comprising two pairs of pivotally connected crossed legs formed of semi-tubular metal, and arranged with seat pivotall connected at its r'ear end to the rearwar 1y extendin legs and at its front end to the 'forwar 1y extendingfrlega the pivotal-connection between each pair. of

- in 20 is mounted in each leg 1 at asu clent distance from the pivots 15 therein,

legs.-comprisin a bracket havingits base ortion ivotal y connected to the rearwardy exten ing leg and having ahead slidably therein. p v

2.. A folding chair comprisin ,two pairs ofpi'votally connected crossed egs formed of semi-tubular: metal, andarran ed with their opensides facing downward y, and a .seat pivotally connected atits rear end to the rearwardly extendi legs and at its front end to the forwar y extending legs,

the pivotal connection between eachrpair of legs comprising an angle plate. having a base portion disposed between saidlegs and pivotally connected to the rearwardlyv extending leg and havin its endportion extending reversely into t e forwardly extending leg, said end portion having a head on its end arranged for slidable en agement w th the latter throughout its mic ldle portion,,the edge portions of said middle portion being inturned to retain "the head therein. Y

In a'folding chair, a leg-of partly tubular formhaving the edge portions of its sides extended towards each other to form a straight longitudinal slot opening to the interior thereof and a bracket having a pivotal connectlon at one end with another portion of the chain-the opposite portion of the bracket extending-through said slot i and havin ahead at its inner end slidably fitted withm the leg to permit the bracket to slide therein and to connect thesame thereto;

. 4. A folding chair comprising. two pairs of crossed legs formed of transversely U- shaped metal, a seat havingpivots extending through the side portions. of said legs' pivotally connectin the front and rear ends, respectively, of t e seat to the corresponding upper ends of thelegs, and a pivotal connection between the crossed portions of each pair of legs comprising a U-shaped an le plate having one side portion disposed hetweenthe legs and a pivot extending'through the side portions of one of'said legs to p-ivotallyconnect said portion thereto, the other side portion thereof extending between the sides ofthe otherlegand havin ahead at its end slidably fitted within t e leg, the

edge portions of the sides of. the leg within which the head slides being inturned to re- 'tain the head therein.

chair having pivotally 5. In a foldin of semi-tubular metal connected crossed e and a seat s'upported thereby, a back frame of semi-tubular metal having parallel end lng through said upper end ortions and said frame end portions at a su tantial dis tance from the extreme ends .of the latter by said frame end portions between its arranged to permit the frame to swing from pivots andfits ends when swung 'rearwardly f its teleseoped position to a. forwardly into holditagainst further rearward swing-J11 clined posit-ion, means permitting limited ing movement. I longitudinal movement of said frame with In testimony whereof, I have signed my relation to saidadjacent legs, and an abutname to this specification. e

- ment'on the latter arranged to be engaged g JULIUS L. CABLE.

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