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Publication numberUS1698344 A
Publication typeGrant
Publication dateJan 8, 1929
Filing dateOct 25, 1926
Priority dateFeb 10, 1926
Publication numberUS 1698344 A, US 1698344A, US-A-1698344, US1698344 A, US1698344A
InventorsMott Hans
Original AssigneeMott Hans
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Chair or similar seat
US 1698344 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors),.1929. 1,698,344

-- H. MQTT CHAIR oR'- SIMILAR SEAT Filed Jnzfel'efor."

Patented Jan. 8, 1929i.



Application led October 25, 1926, Serial No. 144,130, and in Germany February 10, 1926.

This invention relates to improvements in chairs provided with a normally spring elerated seat, designed primarily to assist weak or convalescent persons to rise from the chair.

The invention also comprehends improvements in the details of construction and arrangement of parts which will be hereinafter* described and pointed out' in the claims. ,ln the drawings.-

Fig. l. is a sectional lview of my improved chair, showing theI seat in elevated position. Fig. 2 is a similar view showing the sent in its lowered position on the chair frame.

Fig. 3 is a sectional view'of a slightly difvferent form of the invention, showing the seat in elevated position. Y Fig. 4 is a similar view of themodiied form, but showing .the seat in lowered position.

The numeral 1 indicates an open chair frame, connected by the usual cross bars 2. The upper side -bars 3 of the frame are pro- .vided with ears 4'and 5, to afford a mounting f for the seat 6. A link 7 is pivoted to the forward ear 4, and the free end is pvoted to an ear 7 on the underside of the seat 6. Pivoted frame by abc-ll ycranklever 8 piroted to anl ear 9 on the chair frame, the long arm l2 of' the lever extending down into the chair frame and is attached to a spring A13, the rear end ol which is secured to t 1e frame.

' ingt In the operation of the construction shown in Figs. 1 and 2, the tension o iJ'the s` ring actrongh the bell crank lever an the link long arm of the bell crank lever lie under the seat, while the spring is put under tension so that 'i pon a person rising, the seat will be elevatet According to the construction shown in 11`igs. 3 and 4, the seat is rocked or tilted` when a person is being seated or rising from the chair.

What I claim as new and desire to secure by United States Letters Patent is: y

1. In a chair, the combination of a frame, a seat above the frame, a bell crank lever pivoted to the top of the frame, means for connecting the upper end of the bell crank lever to the bot-tom of the seat, the lower portion ot' the bell crank lever extending downwardly within the frame, and a spring attached at one end to the lower free end of the bell crank lever and at its opposite end to the rear of the fra-me, said spring being tensioned when the seat is closed on the frame to normally elevate the seat from the frame when the seat .is not in use.

2. In aehair, the combination of a frame, a seat above the frame, a link pivotally attached to an intermediate portion of the seat and the front of the frame, a bell crank lever" disposed at the rear of the link and having one end pivoted to the rear portion of the seat and at its intermediate portion thereof to the frame, and a spring attached at its forward end to the lower end of thebell crank' lever and at` its rear endto the rear of the trame, said spring being ti-nsioncil when the seat is closed on the vframe to normally elevato the sea-t from the frame when the seatis not 1n use.

signed my name this 4th da NS MOTT.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2539034 *Sep 23, 1948Jan 23, 1951Belden Stevens LChair for invalids or the like
US3158398 *Sep 14, 1962Nov 24, 1964Stryker CorpSeat construction
US3250569 *May 25, 1964May 10, 1966Edward J GaffneyElevator seats
US3395938 *Nov 25, 1966Aug 6, 1968Tony R. SowderPivoting ski chair seat for trams
US3623767 *Aug 22, 1969Nov 30, 1971Invalift IncInvalid lifting seat
US3851917 *Mar 29, 1973Dec 3, 1974Bath Inst Of Medical EngInvalid chairs
US4407543 *Oct 30, 1981Oct 4, 1983David MashudaMechanized wheelchair
US4632455 *Mar 21, 1985Dec 30, 1986Schiller Robert EChair with occupant assisting features
US4688851 *Feb 7, 1986Aug 25, 1987Henry E. AllenSeating assist device with adjustable spring assembly
US4979726 *May 15, 1990Dec 25, 1990Alexander GeraciChair having lift apparatus
US5011224 *Nov 20, 1989Apr 30, 1991Paul Gerald SArise-assist chair
US5286046 *Nov 25, 1991Feb 15, 1994Homecrest Industries IncorporatedGeriatric chair
US6030039 *Sep 26, 1997Feb 29, 2000Essler; Kirk GregoryRim chair
US6193313 *Oct 10, 1999Feb 27, 2001Jonber, Inc.Chair
US20070246626 *Apr 12, 2006Oct 25, 2007Reynolds Charles SExtendable flag pole assembly
EP0743831A1 *Aug 10, 1993Nov 27, 1996The Mc Q CorporationLift seat
EP0743831A4 *Aug 10, 1993Sep 19, 1996Mc Q CorpLift seat
EP1769702A1Sep 28, 2006Apr 4, 2007Himolla Polstermöbel GmbHFurniture
WO2000015080A1 *Aug 20, 1999Mar 23, 2000Jonber, Inc.Chair
WO2000015081A1 *Aug 20, 1999Mar 23, 2000Jonber, Inc.Chair
U.S. Classification297/339, 248/585, 297/332, 297/DIG.100
International ClassificationA61G5/14
Cooperative ClassificationA61G5/14, Y10S297/10
European ClassificationA61G5/14