Vehicle seat
First Claim
Patent Images
1. A vehicle seat comprising:
- a seat bottom movable forward and backward by a slide mechanism;
a seatback installed to the seat bottom to be adjustable in tilt angle on a center shaft by a reclining mechanism;
the reclining mechanism configured in a manner such that an arc gear is formed at the inner circumference of a perfectly circular ring member, a lock member having a lock gear unit is provided on the inside of the ring member, the lock member is locked and unlocked in and from the arc gear by a cam unit, and the cam unit is configured to be engaged with and disengaged from the arc gear by rotation of the center shaft disposed inside the ring member; and
a rotatable arm that is installed to the center shaft and rotates by manipulation of a reclining lever or a walk-in lever so as to unlock the reclining mechanism,wherein the reclining lever rotates the rotatable arm by a link lever having a slot,the walk-in lever is configured to be able to manipulate the rotatable arm independently of the reclining lever, andthe slide mechanism is unlocked to advance the whole seat, resulting in a walk-in state when the walk-in lever is manipulated in a manner of tilting the seatback forward.
1 Assignment
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Accused Products
Abstract
A vehicle seat includes a reclining mechanism having a lock member, which is engaged with a ring member when it is pressed by a cam body, and a walk-in mechanism. A rotating arm, which is rotated by operation of a reclining lever or a walk-in lever, is secured to a center shaft. The reclining lever operates the rotation of the rotating arm by a link lever having a slot. The walk-in lever operates the rotation of the rotating arm independently of the reclining lever. When a seatback is tilted forward by the operation of the walk-in lever, the slide mechanism of the vehicle seat is unlocked, and the entire seat is moved forward.
12 Citations
9 Claims
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1. A vehicle seat comprising:
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a seat bottom movable forward and backward by a slide mechanism; a seatback installed to the seat bottom to be adjustable in tilt angle on a center shaft by a reclining mechanism; the reclining mechanism configured in a manner such that an arc gear is formed at the inner circumference of a perfectly circular ring member, a lock member having a lock gear unit is provided on the inside of the ring member, the lock member is locked and unlocked in and from the arc gear by a cam unit, and the cam unit is configured to be engaged with and disengaged from the arc gear by rotation of the center shaft disposed inside the ring member; and a rotatable arm that is installed to the center shaft and rotates by manipulation of a reclining lever or a walk-in lever so as to unlock the reclining mechanism, wherein the reclining lever rotates the rotatable arm by a link lever having a slot, the walk-in lever is configured to be able to manipulate the rotatable arm independently of the reclining lever, and the slide mechanism is unlocked to advance the whole seat, resulting in a walk-in state when the walk-in lever is manipulated in a manner of tilting the seatback forward. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification