Chairs and seats – Movable bottom – Movable independently of back
Patent
1993-09-17
1996-01-23
Cranmer, Laurie K.
Chairs and seats
Movable bottom
Movable independently of back
297338, A47C 102
Patent
active
054860369
ABSTRACT:
A seat-height adjusting device wherein a seat-cushion is moved relative to a vehicle-floor side is comprised of a supporting shaft having a first true round portion, a tapered eccentric portion and a second true round portion and rotatably mounted at the vehicle-floor side so as to be movable along a lateral direction thereof, a first gear secured to the the vehicle-floor side, supporting the first true round portion of the supporting shaft and having an inner teeth portion, a second gear linked to the seat-cushion, supported on the second true round portion of the supporting shaft and having inner teeth portion whose teeth number is different from that of the inner teeth portion of the first gear, an intermediate gear mounted on the tapered eccentric portion of the supporting shaft, having an outer teeth portion engaged with the inner teeth portions of the first gear and the second gear and differed therefrom in teeth number, and a device for urging the supporting shaft in order to increase a relationship between the tapered eccentric portion of the supporting shaft and intermediate gear.
REFERENCES:
patent: 4143912 (1979-03-01), Kramer
patent: 4708392 (1987-11-01), Werner et al.
patent: 5120109 (1992-06-01), Rangin
patent: 5203532 (1993-04-01), Matsura
Ito Sadao
Nawa Hiroshi
Aisin Seiki Kabushiki Kaisha
Cranmer Laurie K.
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