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Publication numberUS1747543 A
Publication typeGrant
Publication dateFeb 18, 1930
Filing dateAug 8, 1927
Priority dateAug 8, 1927
Publication numberUS 1747543 A, US 1747543A, US-A-1747543, US1747543 A, US1747543A
InventorsEugene Gregory
Original AssigneeEugene Gregory
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Rotary chair carrier
US 1747543 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Feb. 18, 1 930. GREGQRY 7 1,747,543

ROTARY CHAIR CARRIER Filed Aug. 1927 2 Sheets-Sheet 1 Feb. 18, 1930. E. GREGORY 1,747,543

ROTARY 01mm CARRIER Filed Aug. 8. 1927 I 2 Sheets-Shee 2 Patented Feb. 18, 1930 'ATES' UNITE PATET OFFIQEI I ROTARY CI-IAIRCARRIER Application filed .August 8, 1927. Serial No. 211,404.

' This invention relates to chairs and its object is to provide means whereby'an Ordinary chair may be readily converted into a rotatable and rocking or tilting chair. The inven- 5 tion provides an attachment or device which. I term a rotary chair carrier upon which an ordinary chair may be mounted and secured-and when so mounted such chair can be readily turned while the occupant is seated therein so that he can face in any direction, and the chair can also be tilted or rocked upon the carrier if desired. 7 With this novel attachment or device any ordinary chair may be readily converted into a rocking chair or rtatable and turnable chair without injuring its looks; and when thus converted it can be conveniently moved from place to place. Furthermore the rotary chair carrier upon which the chair is mounted will protect rugs, carpets and floors from injury by the legs or rockers ofthe chair. i

V In the accompanying drawings I have illustrated a rotary 'chaircarrier embodying the invention and will describe the same with reference thereto and refer to the claims for'summaries of the features for whichprotection is desired. r

In said drawings I Fig. 1 is aside view'ofthej devicejpartly broken away and showing a chair mounted thereon'.' V ,7

Fig.2 is an enlarged sectional view on the line 2.2 Fig. 1 looking downward, and showing the rotary'ch'aircarrierlin top plan.

Fig.3 is an enlarged transverse section on the line 33 Fig. 2. 1 V I Fig. 4 is a bottom plan {view of the rotary chair carrier, partly broken away.

Fig. 5 is an enlarged sectional view taken on line 5+5 Fig. 2. V

Fig. 6 is a detail. The rotarychair carrier,.as shown, comprises a base member 1 which is preferably annular, and made of metal U-shaped in cross section, and preferably having an inwardly projecting flange 1* on its upper inner edge. Mounted upon and over this base member 1 is a rotatable supporting member 2 which is also preferably annular and made of sheetmetal 0 and corresponds in diameter to the basemem-- ber 1, and is also preferably inverted ,U-' shape in cross section. The base member 1' being open at top and the supporting mem:

ber Qbeing open at bottom.

The supporting member 2 is preferably rotatably supported upon the basemember- 1 by means of a. series of spaced rollers 3' which are thin enough to freely engage in the hollow base and supporting members and be guided thereby and confined in position thereinand in turn prevent lateral displacement of the supporting member on the base member. These rollers 3 are of such diameter that the supporting member will be slightly raised above the base member as shown.

The rollers 3 may be kept in substantially uniform spacedrelation by any suitable spacing means. Preferably I employ a metal ring 4 provided with radial struck-out lugs 45* at spaced intervals. This ring is placed edge-' wise in the channel of the base member and projects into the channel of the supporting member and the lugs 4*? project between adjacent rollers and permit slight relative play thereofbut prevent one roller overrunning' another and keeps them approximately properly spaced. v

'l/Vhile the supporting member 2 is freeto rotate upon the base member 1 it should be held in proper relationship therewith so that it can not be lifted off when moving the carrier. Preferably metal fingers Qt-are attached to the inner side of the supporting member f2, and hooked under the flange 1% of the base member 1 as shown-so that the members 1 and 2 are kept in proper relative position when the carrier is moved. Mount ed upon the supporting member isa carrying 'member or. frame which is preferably rectangular. The carrying member is prefer ably rectangular andformed of sheet metal and each side thereof hasa horizontal flange portion 5 adapted to rest upon the top, of the supporting member 2 and be fixedly attached thereto. Atxits outer edge part ,5 has a de pending flange 5 which preferably extends almost to the bottomof the base but does not contact with the floor upon which the base rests; At its inner edge the portioni'rhas an upstanding flange 5", at the-top of which is an.

5Iwith oscillatory rocker members 6*to'which" inwardly projecting horizontal flange This angular flanged construction makes a very rlgld, strong and neat appearing carrier frame.

- The-member 5 is of such size that an ordi' nary chair can be stood thereon and have its legs fastened thereto by any suitableimeans so that the chair will be supported on the V Preferably I provide the supporting frame the chair legs may be attached. Asshown upon two opposite sides of the carrying memher 5 are mounted twoftiltable or rocking members 6' which are preferably made of wood and are slightly longer than the sides;

' of thecarrying frame and proj ect beyond the front and, rear .thereof as indicated in the drawings. These rocker'members are preferably: recessed onjtheir inner surfaces as show'natfi so that at the outside ofthes e.

I shafts thereis a portion 6 -which depends outside ,the outer flange i 5? of" theframe' 5.

The topside of the recess is slightly curved and is adaptedto rest upon the flange 5 ofthe supporting member,- the inner edge of the rocker member abutting closely against the-flange 5 of the supporting member. The

members -6 ar elcapabl e 'of slight rocking or tilting movements and each is preferably yieldingl-y confinedlto the supporting. member by meansiof a boltor Pin 6* passingthrough a central slot 5 in the sideflanges 5 of the supporting member andfinto the rocker, membfer so as to hold the latter. in position on the, frame butpermit'the rockingmember to tilt.

o'r'roc'k longitudinally. The rockermembers Gare longenough, toextend under and' suppant o f'the chair can readily turnit to face I in any direction; andjwhen the chair is at i V I portthe legs of an ordinary chair (or specialchair) (see Fig. 1) which may be placedupon the rockersand be secured thereto by means ofscrews 7 passedupwardly through the rock legs'a's shown. II

',When a chair is mounted .upon this rotary chair. carrier, as abovedescribed, the occucached tojthe rockerinembers 6, as indicated and describedthe chai'rcan also be tilted or.

rocked." Thelattachment does away withthe wear and tear on floors,' rugs and; carpets caused byordinary chairs as the base memI-L berprovides a large surface areafor support f ing thjejchairi and the wear; is on. the attach- 1 I mentl flheattachment is light and a chair 7 vmounted thereon' can bemoved from one place;

to'a n'othe'r as readily as'an'ordinary chair. 3

i v. Toj facilitate moving "the c'h'air'from place to place the'supp'orting framemay' be zpr'ovided with I diametrically" opposite" rollersfor casters 8, which are normally pressed downward by. springs 8?, and whichsprings are so 7 I i strong thatwhen the chair is unoccupied the;

casters the'base and chair up asindirs and into the lower ends of the chair cated in Fig. 6. This device enables the chair and rotary chair carrier to be readily moved a without lifting it when unoccupied. When the chair occupied theweight of the occui V pant overcomes the resistance of the springs 8 and the base will set fiat upon the floor or surface upon which "the chair rests and said springs will-[notinterfere with theturning or rocking movement of the chair when occupied. I

Iclaim}. 4 1. chair carrierfcomprising a base memher, a supporting member rotatably mounted upon the'base member the base member and supporting member. being annular and U shaped in cross section; a carrying member mounted upon the supporting.-membenmocking membersmounted. on the carrying meme beriand. means for attaching a chair to said rocking members;

2. In a' rotary chair support in claim 1, the carrying member formed-of I sheetmetal and having horizontally disposed. I

chair supporting portions with depending- 1 flanges at the outer edges-of saidlportionsand upstanding flanges at the-inner edges. of said portions I II II 3. Achair carrier'comprlslng a base-memher and aisupporting member havingannular channels in their. opposed f aces; rollers in.

said channels mounting thegsupportingmem ber uponthebase member arcarrying member mounted upon the supporting member,

formed 1 of sheet metal having horizontally disposedv chair supporting portions lwith; deLI I pending flanges at the outer edges of sa d pon. tions and upstanding fiangesz at the, nner I edges of saidportion s. I I I '14. A" rotary chair carrier, comprisi-ng'a base member having an annular channel in its upper side,ai supporting member having an annular channel in? its;1ower sidfecor're-v spending with the'channel in the base 'mem- I ber,;rollers in said channels and mountingthe V supporting members uponithe base member; a carrying member mounted: upon the: sup-;.

porting member; rocker members mounted upon saidrarrylng member, and: means for attaching a chair tdfsaidrocker members. 5'. In a rotarychair support asset forthin claim 4;, the carryingmember'beingformed of sheet metal having horizontally, disposed chair supporting portionsj fwith depending said portions." I v 6. In a rotary flanges at the outeredgesofsaidip ortions and-upstanding flangesat the inne'r edgesof spacinggthe rollers n a' .Icarrying', m mber. 7

mounted upon the; supporting member, and

formed of sheet metal having horizontally,

disposed chair supportingportions with de- Pending! fl n h alter ed e etseia portions and upstanding flanges at the inner edges of said portions; and means for attachin a chair to said carrying member.

In a chair carrier as set forth in claim 6, the chair attaching means comprising rocker members mounted upon said carrying member and means for attaching a chair to said rocker member.

In testimony that I claim the foregoing as my own, I aflix my signature.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5186424 *Nov 14, 1991Feb 16, 1993Integrative Motion Systems, Inc.Base for a human support apparatus
US7775944Jun 7, 2007Aug 17, 2010Shultz Larry DKinematic rotating-tilting mechanism
EP0471654A1 *Jul 30, 1991Feb 19, 1992Claes RönblomA device which is intended to be fitted to an armchair or like article
WO1992005725A1 *Oct 8, 1991Apr 16, 1992Yoendem IlyasSeat
U.S. Classification297/263.2
International ClassificationA47C3/18, A47C3/00
Cooperative ClassificationA47C3/18
European ClassificationA47C3/18