Adjustable head restraint for vehicle seat
First Claim
1. A vehicle seat comprising:
- a seat back for supporting a back of an occupant;
a rod mounted to and extending from the seat back, wherein the rod includes a series of notches formed therein;
a frame mounted to the rod;
a linkage mounted to the rod to extend and retract relative to the frame in a forward and rearward direction;
a head restraint mounted to the linkage for supporting a head of an occupant and for extending and retracting relative to the frame;
a first locking mechanism cooperating with the head restraint and the frame for permitting incremental locking positions of the head restraint relative to the frame;
a manual release for releasing the first locking mechanism to extend and retract the head restraint relative to the rod; and
a second locking mechanism cooperating with the notches for maintaining a height position of the head restraint, and wherein the manual release releases the second locking mechanism for permitting height adjustment of the head restraint.
8 Assignments
0 Petitions
Accused Products
Abstract
A vehicle seat is disclosed that provides longitudinal adjustment and height adjustment of a head restraint by actuation of a manual release. One embodiment discloses a vehicle seat with a rod extending from a seat back and a frame mounted to the rod. A head restraint is mounted to the frame by a linkage to extend and retract. A locking mechanism cooperates with the head restraint and the frame for permitting incremental locking positions of the head restraint relative to the frame. A manual release releases the locking mechanism to extend and retract the head restraint relative to the rod. Another embodiment includes an eccentric mechanism pivotally connected to the frame. A wire spring is mounted to the frame for engaging a notch in the rod. An actuator rotates an eccentric mechanism for disengaging the wire spring from the notch in the rod for permitting height adjustment.
64 Citations
19 Claims
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1. A vehicle seat comprising:
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a seat back for supporting a back of an occupant; a rod mounted to and extending from the seat back, wherein the rod includes a series of notches formed therein; a frame mounted to the rod; a linkage mounted to the rod to extend and retract relative to the frame in a forward and rearward direction; a head restraint mounted to the linkage for supporting a head of an occupant and for extending and retracting relative to the frame; a first locking mechanism cooperating with the head restraint and the frame for permitting incremental locking positions of the head restraint relative to the frame; a manual release for releasing the first locking mechanism to extend and retract the head restraint relative to the rod; and a second locking mechanism cooperating with the notches for maintaining a height position of the head restraint, and wherein the manual release releases the second locking mechanism for permitting height adjustment of the head restraint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A vehicle seat comprising:
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a seat back for supporting a back of an occupant; a rod mounted to and extending from the seat back, the rod having a series of notches formed therein; a frame mounted to the rod to slide along the rod; a head restraint mounted to the frame for supporting a head of an occupant; an eccentric mechanism pivotally connected to the frame; a wire spring mounted to the frame for engaging one of the notches of the rod, the wire spring cooperating with the eccentric mechanism such that rotation of the eccentric mechanism to a released position retracts the wire spring from the notch; and an actuator for rotating the eccentric mechanism from a locked position to the released position to slide the head restraint and frame along the rod; wherein the rod further comprises a pair of rods, each having a series of notches formed therein and the wire spring engages a notch of each of the pair of rods; and wherein the series of notches are formed on inboard sides of the rods and wherein the wire spring is coiled about the eccentric mechanism such that rotation of the eccentric mechanism expands the coiled portion of the wire spring thereby retracting the wire spring from the notches of the rods. - View Dependent Claims (15)
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16. A vehicle seat comprising:
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a seat back for supporting a back of an occupant; a rod mounted to and extending from the seat back, the rod having a series of notches formed therein; a frame mounted to the rod to slide along the rod; an extendable mechanism mounted to the frame for extending and retracting; a head restraint mounted to the extendable mechanism for supporting a head of an occupant and for extending and retracting relative to the frame in a forward and rearward direction; a first locking mechanism cooperating with the head restraint and the frame for permitting incremental locking positions of the head restraint in the forward and rearward direction relative to the frame; a second locking mechanism cooperating with the notches and the frame for maintaining a height position of the head restraint relative to the rod; and a manual release for releasing the first locking mechanism to extend and retract the head restraint relative to the rod and for releasing the second locking mechanism for permitting height adjustment of the head restraint. - View Dependent Claims (17)
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18. A vehicle seat comprising:
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a seat back for supporting a back of an occupant; a rod mounted to and extending from the seat back; a frame mounted to the rod; a linkage mounted to the rod to extend and retract relative to the frame in a forward and rearward direction, wherein the linkage further comprises a first link pivotally connected to the rod and a second link pivotally connected to the first link and the head restraint; a head restraint mounted to the linkage for supporting a head of an occupant and for extending and retracting relative to the frame; a locking mechanism cooperating with the head restraint and the frame for permitting incremental locking positions of the head restraint relative to the frame; a manual release for releasing the locking mechanism to extend and retract the head restraint relative to the rod; and a guide extending from the rod and connected to the pivotal connection of the first link and the second link to guide a path of the second link.
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19. A vehicle seat comprising:
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a seat back for supporting a back of an occupant; a rod mounted to and extending from the seat back; a frame mounted to the rod; a linkage mounted to the rod to extend and retract relative to the frame in a forward and rearward direction, wherein the linkage further comprises a first link pivotally connected to the rod and a second link pivotally connected to the first link and the head restraint; a head restraint mounted to the linkage for supporting a head of an occupant and for extending and retracting relative to the frame, wherein the head restraint further comprises a forward head restraint shell; a locking mechanism cooperating with the head restraint and the frame for permitting incremental locking positions of the head restraint relative to the frame; a manual release for releasing the locking mechanism to extend and retract the head restraint relative to the rod; a yoke connected to the pivotal connection of the first link and the second link; and a rear head restraint shell mounted to the yoke such that as the linkage expands, the yoke and rear head restraint shell translate forward relative to the rod, and the rear head restraint shell cooperates with the forward head restraint shell such that the forward head restraint shell expands relative to the rear head restraint shell in the extended position.
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Specification