Operator presence sensing apparatus for a seat of a vehicle

Details Operator presence sensing apparatus for a seat of a vehicle Operator presence sensing apparatus for a seat of a vehicle

2005-04-12

2005-04-12

Wu, Daniel (Department: 2632)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S665000, C340S667000

Reexamination Certificate

active

06879261

ABSTRACT:
An operator presence sensing apparatus for a seat of a vehicle includes a base member (7, 8) for supporting the seat (6), and a relay member (9) extending vertically between the base member and the seat. The seat is oscillatable about a pivot axis (X) extending in a transverse direction in the base member. The relay member is pivotably supported at one end thereof by the pivot axis and at the other end by the base member through a cushion spring (10). A seat lift-up spring (12) is disposed between an underside of the seat and the base member for receiving part of the weight of the seat. The seat unoccupied by the operator is oscillated to a floating position lifted from the relay member by the lift-up spring. The apparatus further comprises an operator presence sensing switch (13) for detecting the seat occupied by the operator and oscillated from the floating position to a lower seated position, and a restricting device (14, 15a) for restricting the relay member oscillating upward by action of the cushion spring when the seat is not occupied by the operator.

REFERENCES:
patent: 4361741 (1982-11-01), Leskoverc et al.
patent: 4795865 (1989-01-01), Howard
patent: 5481078 (1996-01-01), Asche
patent: 5565829 (1996-10-01), Loraas et al.
patent: 5991676 (1999-11-01), Podoloff et al.
patent: 6448512 (2002-09-01), Cooper
patent: 08-099559 (1996-04-01), None
patent: 09-121661 (1997-05-01), None

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