Reclining angle adjustment device

Details Reclining angle adjustment device Reclining angle adjustment device

1989-02-06

1990-07-24

Brown, Peter R.

Chairs and seats

Movable back

Tiltable

74409, 475162, B60N 202

Patent

active

049431161

ABSTRACT:
A reclining angle adjustment device for a seat includes a shaft having a concentric portion and an eccentric portion and rotatable for adjusting the reclining angle of the seat, a tapered bushing having a tapered inner peripheral surface engaging the eccentric portion along the shaft, a gear train including an external gear and an internal gear meshing with the internal gear, the internal gear having more teeth than the external gear, a first arm having one of the external and internal gears which is rotatably fitted at its center over the concentric portion, and a second arm having the other gear which is rotatably fitted at its center over the tapered bushing. A resilient member normally presses the tapered bushing axially of the shaft in a direction to strengthen meshing engagement between the external and internal gears.

REFERENCES:
patent: 4020717 (1977-05-01), Johnson
patent: 4304438 (1981-12-01), Nardi
patent: 4453767 (1984-06-01), Walk et al.
patent: 4629250 (1986-12-01), Tezuka et al.
patent: 4629251 (1986-12-01), Tezuka
patent: 4708392 (1987-11-01), Werner et al.
patent: 4715655 (1987-12-01), Katsumoto et al.
patent: 4717204 (1988-11-01), Tezuka
patent: 4832405 (1989-05-01), Werner et al.

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