ACTIVE MATERIAL HEAD RESTRAINT ASSEMBLY
First Claim
Patent Images
1. A head restraint assembly for a seat comprising:
- a support member;
a deployable member selectively movable between a retracted position and a deployed position;
at least a portion of said deployable member being farther from the support member in the deployed position than in the retracted position;
a latch system configured to releasably retain the deployable member in its retracted position; and
an active material member that is actuatable to release the latch system to thereby release the deployable member.
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Abstract
A head restraint assembly includes a support member and a deployable member selectively movable between a retracted position and a deployed position. At least a portion of the deployable member is farther from the support member in the deployed than in the retracted position. A latch system is configured to releasably retain the deployable member in its retracted position. An active material member is actuatable to release the latch system, to release the deployable member.
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Citations
21 Claims
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1. A head restraint assembly for a seat comprising:
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a support member; a deployable member selectively movable between a retracted position and a deployed position;
at least a portion of said deployable member being farther from the support member in the deployed position than in the retracted position;a latch system configured to releasably retain the deployable member in its retracted position; and an active material member that is actuatable to release the latch system to thereby release the deployable member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A head restraint assembly comprising:
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a support member; a deployable member selectively movable between a retracted position and a deployed position;
at least a portion of said deployable member being farther from the support member in the deployed position than in the retracted position;a clutch operatively interconnecting the support member and the deployable member and configured for a first mode of operation in which the clutch permits movement of the deployable member toward its deployed position and prevents movement of the deployable member toward its retracted position, and a second mode of operation in which the clutch permits movement of the deployable member toward its retracted position; and an active material member that is actuatable to cause the clutch to operate in its second mode of operation. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A head restraint assembly comprising:
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a support member; a deployable member selectively movable in first and second directions between a retracted position and a deployed position;
said deployable member being at least one of farther from and in a different angular orientation relative to the support member in the deployed position than in the retracted position;a deployment mechanism configured to move the deployable member from its retracted position to its deployed position upon actuation; an active material member; and a lock system configured to limit motion of the deployable member in both directions and disengageable by the active material during actuation of the deployment mechanism. - View Dependent Claims (17, 18, 19, 20)
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21. The head restraint assembly of claim 165, wherein the active material member changes in at least one of shape, stiffness and a dimension in proportion to an applied external signal.
Specification