US1516811A - Adjustable chair - Google Patents

Description

C. GK. EDWARDS i ADJUSTABLE CHAIR Filed Dec. 14. 19234 rINI/.ENTOR Clarence @Edwards ATTORNEY.

Cal

Patented Nov. 25, 1924.

UNITED lSTATES PATENT OFFICE.

ADJUSTABLE cnam.

Application led December 14, 1923. Serial No. 680,696.

To all whom t may camera.'

Be it known that I, CLARENCE G. EnwARns, a citizen of the Dominion of Canada residing at Los Angeles, in the county of Los Angeles and yState of California,`have 'invented new and useful Improvements in Adjustable Chairs, of which the following is a specification.

My invention relates to chairs and particularly to adjustable chairs.

The general. bject of my invention is to provide a chair comprising an adjustable seat, an adjustable back, an adjustable leg rest and an adjustable foot rest.

A more particular object is to' provide a chair with a back which may be adjusted forwardly or backwardly in several places and at different angles.

Another object isto providey a chair or seat having the adjustable features described, lwhich may be adapted for use in street cars,

automobiles and other vehicles.

Other objects and advantages will appear hereinafter and while I show herewith and will describe a preferred form of construction, I desire to be understood that I do not limit my invention to such preferred formA but that various changes and adaptations may be made. therein without departing from the spirit of my invention as hereinafter claimed.

Fig. 1 is a front view in elevation of one kform of my adjustable chair.

Fig. 2 is a transverse sectional view of the chair shown in Fig. 1 takenv on the line 2-2 of that figure.

Fig. 3 is a side view in elevation of `the chair shown in Fig. 1, showing the parts in different adjustment from that of Figures 1 and 2, and having cushions added thereto.

My chair comprises a pair ofside frame members 1--1, aseat 2, aback 3, aleg rest 4, and a foot rest 5.

Theseat 2 is formed with a transversely]elongated knuckle 6 at its rear edge and; wit a plurality of transverselyelongated knuckles 7 at its forward edge, through which rear knuckle and forward knuckles res tively extendelongated bolts 8 and 9, w ich bolts also extend throu hvertical slots 10 and 11 respectively in t eside frame members 1--1.

Heads 12'on one end of said bolts engage the outside of one of theside frame members 1, while thumb nuts 13 screw on the The leg rest comprises an upper plate 15' and alower plate 16, which upper plate is formed withknuckles 17 on its upper edge which fit between theforward knuckles 7 of theseat 2 and receive thebolt 9, whereby the leg rest and foot rest are supported and kmay be adjusted up or down with the forward edge of the seat as above described.

The leg rest and foot rest may also be swung up on thebolt 9 when the nut 13 is loosened as shown in Fig. 3.

Theplates 15 and 16 of the leg rest are adjustably secured together by means ofbolts 18 andnuts 19, which bolts are seated in and extend through theplate 4 and extend throughVertical slots 16 in theplate 16.

Uppn loosening saidnuts 19 theplate 16 and foot rest 5 may be moved upwardly or downwardly to lengthen or shorten the leg rest and foot rest. Braces 20-20 are pivoted at 21 to the side frame members 1-1, .which braces may be swung forwardly into engagementwithv the under side of theleg rest 4 to Support said rest and the foot rest in a forwardly elevated position as shown in Fig. 3. When the leg rest and foot rest are lowered as shown in Fig. 2, thebraces 20 may be swung back out of the way against aframe connecting bar 22, which connects the lower forward parts of the side frame members 1-1.

The foot rest 5 is formed withknuckles 25 on its rear edge which t betweenknuckles 26 formed on the lower edge of le rest late 16, and abolt 27 extends throug said nuckles whereby said foot rest is pivotally mounted on the lower end of the leg rest.

Ahead 28 is formed on one end ofthebolt 27, which head engages one end of the foot rest 5, while 'athumb nut 29 screws on the other end of said bolt against the other end of said foot rest whereY the foot rest may be adjusted and secur atvarious angles to theleg rest 4.

Theback 3 is made in a pluralitof superimposedplates 30, 31 and 32. he lower edge of thelower plate 30 is formed with a transverselyelongated knuckle 33 through which extends abolt 34, which bolt also extends through slots 35-35 extending in a transverse direction in theside frame members 1 1. Ahead 36 is formed on one end of thebolt 35, which head engages the outside of oneside frame member 1, while athumb nut 37 screws on the other end of said bolt against the outside of the othersidey frame member 1, whereby the lower end of theback plate 30 may be adjusted forwardly and backwardly of said yframe members and secured in adj usted position upon tightening said nut. A plurality ofknuckles 38 lare formed on the upper edge of the late 30 and a plurality of transversely eongated knuckles 39 are formed on the lower edge of theplate 31 fitting between saidknucklesy 38, t rough which knuckles extend abolt 40, which also extends throughtransverse slots 41 in theside frame members 1 1. A

Ahead 42 is formed on one end of the bolt and engages the outside of oneframe member 1, while anut 43 screws on the other end of said bolt against the outside of theother frame member 1, by means of which bolt the u per edge ofplate 30 and the lower edge of p ate31 are pivoted together so that they may be adjusted forwardly or backwardly and secured in adjusted position upon tightening thenut 43.

A plurality ofknuckles 45 are formed on the upper edge of theplate 31 and a plurality of transverselyelongated knuckles 46 are formed on the lower edge of theplate 32 itting between theknuckles 45 through which knuckles extend abolt 47 which also extends throughtransverse slots 48 48 in theside frame members 1 1. Ahead 49 is formed onone end ofbolt 47 and engages the outside of one side frame member l., while a nut 50 screws on the other end of atraen said bolt a ainst the outside of the other frame mem er by means of -which bolt the upper and lower edges ofplates 31 and 32 are pivoted together so that they may be adj usted forwardly or ba'ckwardly and held in adjusted position upon ti htening thenut 50.

Aknuckle 51 is form on the upper edge of theplate 32 through which knuckle extends a bolt'52 which also extends throughtransverse slots 53--53 in theside frame members 1 1, whereby the upper ed e of said plate may be adjusted forward y or backwardly. Ahead 54 is formed on one end of said boltl and engages the outside of one of theframe members 1, while anut 55 screws on the other end of said bolt against the outside of said other frame member whereby the upper'edge of theplate 32 is secured in adjusted position.

The chair may be formed with arms on theside frame members 1 1. Aback wall 61 may be secured to the back edges of theside frame members 1 1 rearwardly of theback 3.Cross bars 62` and 63 may connect the lower rear portion of theside frame members 1 1.

Cushions 65, 66 and 67 may be respectively secured on theseat 2,back 3 andleg rest 4.

I claim as my invention:

A chair comprising side frame members provided with corresponding transverse slots, a back comprising a plurality of sec tions formed with inter-engaging knuckles at their meeting edges, bolts extending respectively through said corresponding slots and through the interengaging knuckles respectively, nuts on the ends of said bolts for engaging said side members respectively, and a seat for the chair mounted between said side frame members.

CLARENCE G. EDWARDS.

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