US1687333A - Chair construction - Google Patents

Description

Oct. 9, 1928.

F. H. HEADLEY CHAIR CONSTRUCTION Filed Aug. 7, 1924 Patented Get, 9, ZS.

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Application flied August 7, 1524, Stena! 'o. "13%576, and in Great Britain January 12, 1924.

This invention relates to improvements in chair construction and consists of the matters hereinafter describedl and more particularly pointed out in the appended claims.

In chairs orstools and especially those eni bodying metallic legs wherein the bottom ends thereof are bent 'or otherwise arranged in substantiall awhorizontal plane to not only increase t ie spnead'or area thereof but also to provide sui able feet therefor, it has been found diiicu't not only to linish ofi the ends of said feet but to apply casters or other 'antifriction members thereto so that the chair as a about. One of the objects of the present invention is to provide in a chair or stool a sii'nple and efficient construction whereby the above 1ncntioned difficulty is readily overcome.

A further ,object of the invention is to provide a nivel' arrangement of the parts whereby the rspindle or shank of the caster is employed to secure the cap to thc foot part 'of t-he leg inl such a .manner that said foot part and cap, in turn, provides the bearing in which said spindle or shank journalled.

These objects-f the invention, as Welll as the many advantages thereof will more 'fully appear as I proceed with my specification.

1n the drawingstm f Y .Fig l i a perspective View of, a chair embodying iny invention.

Fig. 2 is a longitudinal vertical section, on an enlarged stele, through the foot part of one of the legs of said chair.

Fig.- 3 is a. transverse Avertical section through thesa'me as taken on the line 3-3 in Figs-j 1 to 3 inclusive, of the accompanying drawingszindicates, as a Whole, the standard or support of a swivelling cli-air and 6 the seat thereof which includes in this instance, a folda-ble back rest 7.

Whole may be easily moved' l The standard comprises,'as shown in this instance, top, and bottom vertically spaced nearing sleeyes or colla- rs 8 and 9, respectively, each of which has a plurality of arcuately spaced recesses or depressions to receive the ltop ends of thefleg members 10-10. Said legs are secured to said slves by means of `bolts 1l which take through said legs and are threaded into said collars, suitable washers being interposed between said lcgsand the heads of said bolts. The bottom end of said legs are bent to extend radially outward to terminate in substantially horizontally disposed feet 12 which increase the spread of the chair and its stability against tipping.

The seat, in thisinstance, carries a. vertically disposed dependin' post 13 near its middle which has guideda rotative bearing in the top collar o r sleeve 8, and the bottom end of said post is threaded and engages in a threaded hole in the bottom sleeve or collar 9, to provide the swivelling action ,for the seat 6, as is apparent.

-The outer or foot end of each le vwhich, as shown herein, is tubular and tiereforo normally open, is finished off to close the end thereof by a cap having a tubular body 14 `which embraces or surrounds the end of said le and an end wall 15 which closes the end oigsaid tubular leg. Associated with each foot or leg end is a caster or other lantifriction.clevice indicated as a. whole by the reference member 16. Said caster, as herein shown, includes a bifurcated or forked 'frame i7 between the spaced arms of which an antifriction element or caster wheel 18's mount ed in any suitable manner. Securely fixed to said fork frame is an upright or vertically disposed pintle or pin 19 which extends through and has bearingjn diametrically oppositely disposed, registering holes 20 and 21 in the leg end and cap respectively. On the top or cross bar of fork frame-17 and at the base of the pintle 19 is provided an annular bearing shoulder 22 to space said fork from the cap when the caster has been applied to the chair le?. The pintle 1s of such a Vertical length tiat its top end projects slightly above the-body ai the cap and to said proyecting end is applied a washer 23 after which said end is upset to provide a head to secure the parts in position.

It will be apparent from the foregoing` that the pintle 19 passing, as it does, through the leg end and the body of the cap, will lock said cap against dislodgement or removal and saidleg end and said cap body by reason of the holes therein provide a subst'antial bearing in which the pintle is capable of a rotative or turning n'iovement. '.lfhus, when the chair is moved about the floor on its casters, said casters will easily rotate about the pintles thereof` so that said caster wheels Will readilyvtrail in the direction of movement imparted to the. chair.

In Fig. 4 I have illustrated a slightly modified form of the invention in .this respect.

Instead of using a tubular cap, as before described, I may employ a cylindrical plug having'a body part- 25 of a diameter to fit within the end of the .tuFular 1eT an a head part 26 of a diameter eq i all toftlif; ou ide diaineter of said leg. At the junction of the body and he'ad .parts of the plug is an annular shoulder 27 and in said body is provided a transverse hole QS. When the plug body is inserted in a tubular leg end, the shoulder 27 will limit said insertion vso that the hole 28 in Said body will register with the .diametrically opposite holes 2O in the leg end after which the pintle 19 of tne caster is inserted through the registering holes and secured in place, as before describe l.

The. construction, before mentioned, provides a simple and efficient means for providing a finishing capor a leor end, which cap and `leg end act to provide a caring 1n which the pintle of the caster is journalled for rotative movement so that the caster can readily trail in the direction-.of movement imparted to the chair.

While in 'describing my invention, I have referred to ce tain details of mechanical construction and form, as wel] as arrangement of parts, I do not ish to be limited thereto eX cept as may be pointed out in the appended claims.`

I claim 1, In a chair or the like having tubular metallic legs, in combination with one of the legs thereof, means providing a finishing member at and for closing the end of said leg, and a caster frame including a pintle, passing transversely through said chair leg end and a part of said finishing member which are secured together thereby and provide a hearing in which said pintle is journalled.

2. In a. chair or the like having tubular metallic legs, in combination with one of the legs thereof having an open end, a finishing member including an end and a body adapted to engage with the open end of said leg to cose the same, said leg and body of said finishing member having registering transverse openings therein, and a caster frameinclud- .ing a pintle, journalled in said registering openings and securing said finishing member to said leg.

3. In a -chair or the like, in combination with one. of the tubular legs thereof having' aligned openings therein, a finishing member including a tubular body and a head, which tubular body is adapted to embracesaid leg end and is provided with openings adapted to register with said openings in saidlle'g end, and a caster frame including a pintle which extends through and is `iournalled in said registering openings, and secures said finishing member 'to said leg end.

l In combination with the leg of achair, a cap fitting over the end thereof, said chair leg and cap having registering openings therein, a caster frame including a pintle Vwhich extends through said registering openings, said pintle acting to secure the cap to said leg end and said leg end and cap providing,r a journal bearing for said pintle.

vIn witness whereof@ have hereunto set my hand this 18th day of July, 1924.

FREDERICK HAGGER HEADLEY.

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