Seatbelt device
First Claim
1. A seatbelt device comprising:
- a pre-tensioner for tensioning a seatbelt by moving a member connected to the seat belt; and
a shock absorbing mechanism for absorbing shock resulting from stopping the movement of the member, wherein the shock absorbing mechanism includes two compressible members, the second compressible member surrounding the first compressible member.
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Accused Products
Abstract
A seat belt device including a shock absorbing mechanism to gently stop a pull-in member and to prevent a large impact force from being exerted on the pull-in member when the pull-in member is pulled in by a pre-tensioner. The device may include a wire pulled by operation of a buckle pre-tensioner at the time of an emergency, a buckle is pulled in towards a bracket while a cover contracts. Before the cover contracts to a maximum permissible contraction position, the buckle comes into contact with the free end of a shock absorbing member, and, then, is pulled in while the shock absorbing member is caused to contract. By the contraction of the shock absorbing member, the shock absorbing member absorbs impact energy of the buckle.
29 Citations
17 Claims
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1. A seatbelt device comprising:
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a pre-tensioner for tensioning a seatbelt by moving a member connected to the seat belt; and
a shock absorbing mechanism for absorbing shock resulting from stopping the movement of the member, wherein the shock absorbing mechanism includes two compressible members, the second compressible member surrounding the first compressible member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17)
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12. A seat belt device comprising:
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a pre-tensioner;
a movable member connected to the seat belt;
a wire connected to the pre-tensioner and the movable member, wherein during operation of the pre-tensioner the wire is pulled causing the movable member to move and the seat belt to be tensioned; and
a shock absorbing mechanism configured to absorb shock associated with movement of the member;
wherein the shock absorbing mechanism includes two compressible members positioned around the wire.
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13. A seat belt device comprising:
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a pre-tensioner;
a movable member connected to the seat belt;
a wire connected to the pre-tensioner and the movable member, wherein during operation of the pre-tensioner the wire is pulled causing the movable member to move and the seat belt to be tensioned; and
a shock absorbing mechanism configured to absorb shock associated with movement of the member;
wherein the shock absorbing mechanism includes two compressible members, the first compressible member surrounding the second compressible member and wherein the second compressible member includes a relatively rigid portion to limit the movement of the movable member.
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Specification