US1860096A - Chair, seat and the like - Google Patents

Description

' May 24, 1932. F. |-|v HEADLEY CHAIR, SEAT, AND THE LIKE 2 Sheets- Sheet 1 Filed Nov. 3, 1928 May 24, 1932. F. H. HEADLEY CHAIR, SEAT, AND THE LIKE 2 Sheets-Sheet 2 Filed Nov.3, 1928 tion and elevation; N g n l The present invention has for its object to. provide back-rest or support mechanism 'having a simple and unified'form ofadjustment .Patent ed May 24,1932 V FREDEBiCK HAGGER ;HE;DLEY, F"-,1aTHF1Em,*Biammmm; ENcLAnD} Armin:

I BowDEN 'HE DLEYQ 'rixirzou'raix on1 S ID FRED-ERICK fleecing H ADLE DIE-'1 cEAsEn, ASSIGNOR T0 rHE'rAnsAn CHAIR coM'rAnY (1931) LI1YIIT7ED, E BIRM NG- I HAM, ENGLAND, B I N 1 FCHAIRQ AND THE LIKE 1 App fil N r 3; 1928, s r i-a 'm- 3 7 045, again 'G reatiZBritain February 20; 1929.5; s

The present invention has }relation to chairs,lseats or the like, more particularlythe back-restsor back supports jthereof. Backrests or supports for chairs,seats,or the like' have previously been proposed of? fiIlttClJllStable character both with regard to inclinamechanism which will permit of a particularly speedy and secure settiug' of the back-rest or support proper in the desiredpos tion.

In order that this invention may be clearly understood and readily carried into practice,

reference may be had to the-appended explanatory' sheet of drawings, upon wh1ch y v Figure l'saperspective viewof a seat incorporating adjustable clamping mechas nism for the back-rest constructed according to the present invention. u I r u Figure 2 is a sectional plan view taken horizontally through the clamping mechanism shown in-Figure 1. r

taken on the line 3+3 of Figure 2. 7 i Figure 4 is a sectional view correspond ng to'that shown in Figure 2 only of a modificau p r horizontal axis for small automatic adjust-i Figure 3 is a transverse Sectional elevation tion of the present invention.

Figure 5 is a transverse sectional elevation 1 taken on the line 55 of Figure it.

In that embodiment of the present'invention illustrated in Figures 1, 2' and3, the seat a (Figure 1) is provided on its underside witha frame Z) (Figure 2) having rearwardly extending, laterally spaced arms 0 and (Z roespectively. Attached to the arm c is an annular radially serrated elementc which is adapted to co-operate with an oblong ser rated element 7 having a'channel or slideway /"1 and a boss f2rotatable in a blind aperwith a wooden liner." This post 9 is adapted to slide in the channelor slide-way f1 and'is operable by means of a hand-screw member 2' p p I k arm d between thepos't'gand the hand-screw operating in a tapped aperture in the arm d.

between 1 corresponding. movemen said backrest or s' i.1pport, ''v i. 'J

1 he.postgmay.carry atitsiipper extremity, i v a' forked-memberf gl wherein the back-rest 'ment purposes.

lnoperatiominr order tdadjiist rear- T post g seized by the hand; Thealrmcan'then be slidvertically its channel fl; and itcan" g 1 also be rotated; on laccount of the serrated faces being disengaged by the-spring j; That is rfi r n b are capable of a' universal movement in a fixed plane NVhen; I adj ustment'has been obtained, the

justment. It will be hand-screw, i1 tightenedtofefl'ectively secure the parts in their new, position of ada 1 1-; I -i ties e e -t ref eft y: ,the manlpulation ofasingle hand screw, a universal adjustmentof the back may; b b." 7

tained,that:is to say, an a'djustment both with respect to inclination of the supporting post obtaining forward and: rearward movement of the back-'rest'or support,.a nd-thever-V tical adjustment of the said post obtaining a h is adapted to swivel or pivot as at 92 on a i In that modification of the av tar 11- lustrate d in" Figures 4 and 5, the partf'blis V attached to the underside of the seat a1 and- 1 is provided as l1ereinbefore with the arms" 0, (Z. The armjcha's atta'ched'thereto a plate ehaving aplu ality' rradiarsermuonsmnd alsocarries a bolt is Which is keyed as at k1 against' rotation, The lowerpart of the supporting post 9 inthisumodification, is V I00 to, accommodate the bolt k, andfsaid post 9 fis itself a'ccommodated'in av channel fZ-in'aslow d s was e l 'yFi'gure' 5,

Serrated plate member fmounted. upon the boltfie which"iscomplementary to the plate e 7 sio flspnng tending to sparatethe comple--' secured toflthe arm a. "j isa coiled compres tance piece'operati'ngjn aperture infthe In the operation of this modification, in

order to adjust the backthe handscrew m is unscrewed, and the post 9 being seizedrby the hand can be slidingly-adjusted in the channel f2,-and/or"rotated with the member f inasmuch as the serrated faces are disengaged by the spring" 9'.

'cured intheirpos'ition of adjustment (Fig ure 4) by'tightening' the hand-screw m.

The parts are .se

n 1s a peg or projectionbn the stationary plate 6 which may be provided for the purpose of limiting the rearward pivotal movement of the post g by contacting the complementaryoplatei and thereby preventing the back-rest from falling rea-rwardly towards the greund.- v I I claim as my invention chair embodying therein" a -inember I having laterally spaced a'rms, one of which has radial serrations there0n',a device having a gdidechannel on one face andradial serrations-on the other face disposed betweensaid arms, means providing a pivotal con-- nection for said devicefwith respect tosaid' arms, a backrest supporting post :lon'gitndi V nally adjustable in said guide channel and means arranged axially of said device and disposed'in'partupcn the othergside of the other arm for clamping said postto said "dc- 3O said first mentioned arm.

vice and for clamping said device: against 2. A chair embodying therein a member ;having laterally spaced arm's,"one of which has r'a-dial serrations thereom-a device havding agu'rde channel on "one faceand radial serrations on the other face disposed between said arms, means providing a pivotal connection for said device with respect to said arms,

a back resii supporting post Y longitudinally arm with the serrations thereon ar'id a and said device.

adjustable in said guide channel, means 'arranged axially of said device and disposed in V the other arm for clamping said post to said device and for part upon the other side of to said first mentioned I spring interposed between said first mentlone" clamping said device longitudinally adjustably mountedv on said Y device and means between said first mentioned. arm and said device normally urging said device awayfromsai-d arm and a rotatable member'threadedin the other arm for engagementwith said 'post againstthe' action of said last mentioned meanS'toclam P I said post tosaid device" and to hold 'tliesa'id device against thezfirst, mentioned arm and against rotation with respect: thereto. I

' first mentioned arm; Y

-6. A- chair embodying'therein a-member having laterally spaced arms, a device positioned between said arms and having a guide channel, means providing apivotal-con'necm tion for saidjdevices with respect to one of, said arms, a back rest post disposed. in said guide channel for V longitudinal adjustment, said oneof-said arms'andsaid device having interengaging "parts" for:v determining tlie3t95 V angular positionofsaid device relative to said one of said arms and means disposed in the other of said arms coincident with the axis of said device for clamping the back rest post in said channel an-d for clampingliwo said device to said one of'saidarms. I In 'witness whereof I have hereunto set my hand. 7 I 1 V I FREDERICK QUEER HEADLEY.

3.Ajchair embodying therein a seat, a

pair of laterally spaced arms projecting to the rear of said seat, a device associated with I -one of said arms and rot'ative with 're'spect thereto, said device and arm having radial finterengaging part-s thereon, a seat post 1011- gitudin'ally adjustab ly mounted on said de- 7 vice and'a rotatable member threaded in the other arm for engagement with said post to clamp said post to said device and to hold said device against the first mentioned arm m and against rotation withrespect thereto.

i. A chair embodying thereina' seat, a pair of laterally spaced arms projecting to the rear of said seat, a device associated with one of said arms and rot'ative with respect thereto, said device and arm having radial I interengaging parts thereon, a seat post

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