|Publication number||US1698344 A|
|Publication date||Jan 8, 1929|
|Filing date||Oct 25, 1926|
|Priority date||Feb 10, 1926|
|Publication number||US 1698344 A, US 1698344A, US-A-1698344, US1698344 A, US1698344A|
|Original Assignee||Mott Hans|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (20), Classifications (8)|
|External Links: USPTO, USPTO Assignment, Espacenet|
-- H. MQTT CHAIR oR'- SIMILAR SEAT Filed Jnzfel'efor."
Patented Jan. 8, 1929i.
UNITED STATESy HANS MOTT, F HAMBURG, GERMANY.
CHAIR 0R "BIMILAB SEAT.
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.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2539034 *||Sep 23, 1948||Jan 23, 1951||Belden Stevens L||Chair for invalids or the like|
|US3158398 *||Sep 14, 1962||Nov 24, 1964||Stryker Corp||Seat construction|
|US3250569 *||May 25, 1964||May 10, 1966||Edward J Gaffney||Elevator seats|
|US3395938 *||Nov 25, 1966||Aug 6, 1968||Tony R. Sowder||Pivoting ski chair seat for trams|
|US3623767 *||Aug 22, 1969||Nov 30, 1971||Invalift Inc||Invalid lifting seat|
|US3851917 *||Mar 29, 1973||Dec 3, 1974||Bath Inst Of Medical Eng||Invalid chairs|
|US4407543 *||Oct 30, 1981||Oct 4, 1983||David Mashuda||Mechanized wheelchair|
|US4632455 *||Mar 21, 1985||Dec 30, 1986||Schiller Robert E||Chair with occupant assisting features|
|US4688851 *||Feb 7, 1986||Aug 25, 1987||Henry E. Allen||Seating assist device with adjustable spring assembly|
|US4979726 *||May 15, 1990||Dec 25, 1990||Alexander Geraci||Chair having lift apparatus|
|US5011224 *||Nov 20, 1989||Apr 30, 1991||Paul Gerald S||Arise-assist chair|
|US5286046 *||Nov 25, 1991||Feb 15, 1994||Homecrest Industries Incorporated||Geriatric chair|
|US6030039 *||Sep 26, 1997||Feb 29, 2000||Essler; Kirk Gregory||Rim chair|
|US6193313 *||Oct 10, 1999||Feb 27, 2001||Jonber, Inc.||Chair|
|US20070246626 *||Apr 12, 2006||Oct 25, 2007||Reynolds Charles S||Extendable flag pole assembly|
|EP0743831A1 *||Aug 10, 1993||Nov 27, 1996||The Mc Q Corporation||Lift seat|
|EP0743831A4 *||Aug 10, 1993||Sep 19, 1996||Mc Q Corp||Lift seat|
|EP1769702A1||Sep 28, 2006||Apr 4, 2007||Himolla Polstermöbel GmbH||Furniture|
|WO2000015080A1 *||Aug 20, 1999||Mar 23, 2000||Jonber, Inc.||Chair|
|WO2000015081A1 *||Aug 20, 1999||Mar 23, 2000||Jonber, Inc.||Chair|
|U.S. Classification||297/339, 248/585, 297/332, 297/DIG.100|
|Cooperative Classification||A61G5/14, Y10S297/10|