US862565A - Adjustable chair. - Google Patents

Description

PAT-.TVED AUG. f5, 190'?. NE.

TB GHAR,

APPLIIJATME MMD J'ULYzo. 1.904. Y

' 4 sums-sm Zl/ITNESSES; f@ zal@ /f PATENTED AUG. 6'; v1907.

' S. KLINE. ADJUSTABLE CHAIR.

APPLIUATION FILED JULY 2o. 1904.

4 SHEETS-SHEET 2.

@AMW v E .2.

.AN @NBN Nm. www5@ INVENTOR: J/W/ ffl/.IMS 7 JM.

PATENTBD AUG: 6,1907.

s.'KLINB. ADJUSTABLE CHAIR. APPLIGATION FILED .IUL' 20. 1904,

'.4 aligns-SHEET@I s' Adjustable crm ringsum OFFICE.'

V SAMUEL-KLINE, OF'TRENTON, NEW JERSEY.

ADJUSTABLE CHAIR.

'Specification of Letters Patent.

Patented Aug. 6, 190'?.l

Application filed July 20, 1904. Serial No. 217.342.

To all whom it may'concem: Y Y Be it luiownjthatzlfauust Ktrnnpof Trenton, in the county of ,Mer d'tState` oi New Jersey, have invented ycerthfI ii'ew:y .useful Improvements rin whereof `the following is a specicaupm refer'eirc being*had'to thevaccompanying'drawssf 'j f yinyention re ates to a chair. particularly designed forxbarbers use, comprisin ipa frame mounted to rotate on and'support adjustable seat and back mem-v Y lbe'rs, in coperative relation with a combinedii'oot and :leg4 restfwhich latter is so constructed as to be readily l'adj usted t'o and from thechair to accommodatepersons of'different heights; the foot rest being stationary and the jle'g rest oscillatory. l. V- As hereinafter'. described, my invention compre bends suclra relation ofthe chair back and seat mem- "bers, that when "the back is tilted to th'e position in.'

which the occupant recliues, the` seat is automatically and differentially inclined upward toward the front of the chair; but when the back is returned to its normal l'. substantially upright position said seat returns to a horizontal position. Such automatic differential adjustment of the chair seat and back affords, the occuv 5 pant a sense oi comfort and security, which has heretoforeonly been obtainable by separate manipulation Aand adjustment of the back land seat.I

My Vinvention comprehends the various no vel fea- ."tures of constructionand arrangement herein more definitely specified. lnzl'the accompanying drawings, Figure I, is ,a side cle 4tioliof chair, in reclining position, conveniently embgxi yingV my improvements. Fig. II, is a plan View I said chair, as shown in Fig. I, with the upholstered vertical sectional view of said chair, in its normal posi- `n, Fig. IV, is avertical sectional view of said chair, taken on the line IV-IV in Fig, III. Fig. V, is a laurview ofthe chair base, showing v'the clamping mechanism and its support; Eig. VI, is a detail view fofftlie clamping lever with its cam. Fig. VII, is a dctail view ofthe lever and-rack for securingy said chair in adjusted position.' Fig. VIII, .isa fragmentary plan f "'view'of the frame. I

y said figures, the base-1, has its bottom fiange 2, resting upon the rubber annulus 3, .which frictionally i engages a floor having la tiled or other slippery surface, to preventdisplacement of the chair and to protect said base flange from deacement by the shoes of the operator. Said'lmse l, is capped with a stationary horizontal bearing cup 4, having a central hub 5, on 4which the inverted bearing lcup 6, is arranged vto ro- Said cup @has-,horizontal transverse arms'7,

, tate.

and 8, to which'the chair side framesl 9, are attached.

YSaid bearinglz'iis retainedby'thc plate 1Q, whichv is V back, and arm-rests removed. Fig. I II, isa central I .secured in stationary position on the hub' 5, by the screws 1l. Between said bearing cups 4, and 6 is a Vseries of bearing balls l2, conveniently three in number. As shown in Fig. V, said balls l2, are properly is provided with thedepending lug 21, in which 'the Y shaft 22, is journaled. -Said lug 21, has the cam suriace 23', upon its inner side, which is engaged by the cam disk 24, fixed upon said shaft 22,Vbythe set screw 25. Said shaft has'ithe operating lever 26, extending to a convenientposition at the side of the chair, so that by Y turning said lever 26, and shaft 22, to the right, (rel ferring to Fig. 1,) said shaft 22, is thrust inward by the coperation of the cams 23, and 24, vso as to press the A loosely mounted friction shoe 28, against the periphery of the stationary bearing cup 4, thereby clamping the rotary portion of the chair in any desired position of rotation.

Thechair back frameBI, is provided with integral arms 32, which are pivoted for oscillation on the side frames 9, at 33, and support the rear end of the seat frame 40, by the pivotal connections 34. The front end ofsa'id seat frame 40, is suspended from the side frames 9,v by the depending links 4l, which are connected to the frames 9, by the pivots 42, and to said frame 40, by the pivots 43. Said back frame 31, and seat frame 40, are conveniently form-ed of L shaped cross section, so that their respective cushions 44,and 45, are normally retained rigidly therein, but may be' readily removed.

It will be obseryed that the connections above dcscribed are such that when the back frame 81, is inclined as shown in Fig. I, the seat frame '40, is difierentially inclined. Said seat frame 40, is provided at its front end vwith lugs 46, with which the springs 47, are respectively connected. Said springs 47, having 'their rear ends connected by the bolts 4S, with the lugs 50, onthe cup 6. Said'bolts are provided with nuts 5l, `whereby the tension of said springs may be accurately adjusted. so as to connterbalancethe weighg of the occupant of the chair and tend to normally return the chair to the position-shown in F ig. Il. Said back sind scat ira-Ines may be conveniently locked in any desired position of yinclination against the tension of said springs 47, by the pawl lever 53, which is fulcruxncd at 55, on the arm 7, iis forward end being `provided with the tooth 56, arranged to engage the teeth is convenientlyoperated by .thc handle 62, which exllo V 69andy 7l); and bottom transverse webs 72, the llatter having slots 73. lach oi said iramcs 416, is adapted to retain a removable upholstered arm rest block` 75, and the front ends 76, ol' said frames 66,' are extended up-4 wardly above said blocks 75, to conveniently support l 5 the hands ol' the occupant of the chair and thereby receive the severe Wear that is usually received by the iront ends of the upholstered portion of chair 4arm rests.

Said arm rest trames GG, are adjustably secured on the fl-.xnges 65, of the frames 9, by' screws 7S, extending through the slots 73, in threaded engagement with said flanges and, l find it desirable to interpuso ur'iholstered slabs 80, between said flanges (i5, mid said arm rest frames (i6, both to ornament the chair and afford'a reA silient support for the arm rests.

The adjustable arrangement of the arm rest frames 66, above described, avoids'the usual necessity for accuracy in drilling thehol es for the (,onpec'tions between the arm rests and the chair l'ran'ie. The removable arm rest blocks 75, are'advantageous in that they may 3() he readily removed and replaced when it is necessary to clean them; it being also noted thmthey are sym-` metrical and may be 'reversed in position. The projecting ends 76, of the arm hrest ramesare :advantageous in that they protect the upholstered ends oi the blocks 75, and prevent uneven wear of the latter.'

The upper central portion` of the back frame 31, is provided with the parallel guides 82, in which tho head rest supporting bar S?, is arranged to reciprocate. Said bar 83, is recessed lo form a series oi rack teeth 85,

'4 (l arranged to engage the pawl 8o', which is pressed therein by the spring 97. Said pawl S6, has the tooth S9, so

shaped that saidoaok bar 811, may-be raised wiiliout\ manipulation o the pawl-- llowevor, it heilig necessary to manually withdrawv said pawl Sli, when it is def 45. sired to lower the rack bar S3, the pawl is provided with the projecting finger 91. v

The upper part of the rack bar 83, extends forwardly over the frame 31, and has its cylindriform end 93, 'itted in thesocket` 94, o f the head rest 95, so that the lat ter maybe supported at any predetermined angle of inclinationfby the thumb lscrew 96, which 4latter enters the circumferential groove 98, in the end 93, so as tov permit said restf95, `to be oscillated without lateral movement. .i l

Said chair is conveniently provided with the step or childs-oot rest, comprising the horizontal member 108, and inclined member 109, both supported in th'el -sidc frames 110, which latter are connected at theirrela-r ends to the sidev frames 9, by the pivot studs 112.l

The lugs 114, on said step frames 110, are arranged lo encounter the lugs 115, on the chair side frames 9, which *lugs support said step in the normal lowered position shown in full lines in Fig. 11,1. Said step may be upturned lethe idle position shown in dotted lines in said (i5 ligure, but has its upward movement limited bythe lugs 114, encountering the lugs 116, on said -fraines 9. Saidframes l9, arerigidly connected by the cross bar ll7, adjacent to said pivot studs 112.

The chair abovedescribed is advantageous in that it 'may be rotated to receive and discharge an loccupant 70 within a space limited to substantially the wid tliol the chair; thus permitting the employment/o the ina'i-y mum number of chairs `in a'givenareah' In erd'to retain said advantage and also provide alsuitable foot and i: leg rest for the occupant, it isnecessary to support such 7 5 rests independently of the rotary portion-of the chair. Therefore, l ind it convenient topr'ovide a combined foot and leg rest, which .while v"structurally indepeiil- K ent of the chair base is normally retained'in'istationar'y relation therewith, independently of the rotary portion of the chair, and is also adapted to be adjusted toward and away from said base so as to'coperate wi'tlr-said seat in the accommodation of persons of different heights. i i v y v The combined foot and leg rest comprises the side haines 118, which are rigidly connected by the lower and upper l'oot rests 119, and 120, '.s'ecured'therein by bolts 1.21, and 122, respectively entered through flanges 124, and 125, on saidirames. The leg rest`127, whichis i conveniently iornied of an upholstered block, is mount- 9'0 ed in the upper portion of said frames 118, so'as to be os- 'cillated to any desired angle upon trunnions128',at`the opposite ends thereof; it being understood thatfsaid leg rest is retained inany desired position of angular adjustment by irictional engagement with the opposite vframes 118. Said haines haven-'ont fe'et 130,"which ,rest may be tiltedto raise its feet. 130, from the licor, whenever it is desired to shift' it toward Ior'away from the chair base 1, upon said casters. 105

Il is to be noted that the head rest and arm rest hei VV in described, are respectively claimed in divisional Let` ters Patent of the United States #823,7923'dated J une 19, 190s, and #823,670, dated August 14,19or; l I do not desire to limit myself to the precise details of 11-0 construction and'arrangement herein shown and de'- scribed, as it is obvious that variousmodiications ma y be made therein without departing from the `essential features of my invention'. y

I claim 1- y 115 1. In iin adjustable chair, the combination with a base; of a frame mounted lo rotate on said baise; a `buck member' having for\vn"-ll v extending integral arms plvoted on said frame; a rempmcatory seat member directly pivoted at its rear end to said back member; links pivoted at their" upper eud's tosnrl frame. and at their lower ends to the front portion nl' said seat member; a lug carried 4bysaid seat 'member arranged `tolimit its movement forward and backward; a rack rigidly secured'fto said sent member; and, a pawlle'ver pivoted ior vertical oscillation on suid 125 frame, airan;:,'1 ioengage said rack, substantially as set forni.

2. In an' adjustable chair, the combination willi a base; of 1 frame mounted to rotatel on said buse; adjustable means arranged lo friciionally engage said base and 'frame und secure the latter in any selected position of rotation: a back member having` forwardly extending iulegi'nl arms pirated on sud frame; a sent member piroted ut its rear vnd directly to the hack memhpr: links pivnted :it their upper omis to said fi'iime und :it their lnwei' mds to the front poi-limi, of siiid sent ineiiihiii" i spring voniiutinf: fh@l sont :ind fi'ziiiiii.zii'iiiliged to draw Szid sent i'czir- \\':irdl :i .riii'k rigidly spi'iiieil in the :it iiiiiiiihvr; und. :i lever pirated ixitcriiiiidizilo of iis leiigi'h on Said I'rzinw. fui' veriii'zil osiillaioii, having; :i mitli :il omx vnd :iri'iiiigvd iii eligugi said rack in diil'vriiil positions. slihsiiiiiiiiill; :is ser forth4 i In :i (-liiiiiuf lthe hiss described, the miihiuaiimi with :i stationary hziw;v of :i rotary frame ou said buse. prnvided \'\'ith ai seni; :i shaft joiirmlled on sziirl rotary frume; ai stationary ciiiii fare un said frame; :i i'zirn disk on smid shafr in opereifive relation with sziid stiiiionury mini face: meziiis detzilizihly Securing said disk on said shiif; :i shoe on Suid hufLiii-ra-ngeil tu mig-age said brise; and, zin operating' hundli mi saiiii shzifi, substantially :is setforth,

4. In iixchziir of `The class described, the comhiiiiiiioii with :i stiiiimiziry hahn; of zi hearing; ciip stiii'ioiiiiry on Suid Imse aiudliiivin;l :i i-ii'cilhir periphery; zx rotzii'y frziiiifl nu said hnsi provided with :i Sent: :i slinft jniiruzilcd mi

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