Retractable headrest for vehicle
First Claim
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1. A retractable headrest for vehicle including a pillar having a horizontal shaft, said pillar being provided in an upper portion of a seatback;
- a headrest body having a lower portion rotatably provided around said horizontal shaft of said pillar; and
a retracting mechanism provided inside said headrest body for retracting said headrest body backward, said retracting mechanism comprising;
a headrest body biasing means for biasing an upper portion of said headrest body backward;
a lock plate provided on the horizontal shaft of said pillar, said lock plate having a first locking part;
a latch provided in said headrest body, said latch having a second locking part engageable with said first locking part;
a latch biasing means for biasing said latch so as to engage said second locking part with the first locking part of said lock plate when said headrest body is erected in a substantially vertical state;
an actuator for disengaging the second locking part of said latch from the first locking part of said lock plate against a basing force from said latch biasing means;
wherein said headrest body is retracted backward by disengaging the second locking part from the first locking part of said lock plate, and is kept in a backwardly retracted state by abutting the rear surface of said headrest body against the upper portion of said seatback.
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Abstract
A retractable headrest for vehicle having a general versatility. All the components of a retracting mechanism for retracting a headrest body are provided inside the headrest body. Thus, any additional component does not need to be provided inside a seatback. Accordingly, even if the seatback can take various forms according to the type of a vehicle, yet the headrest body can be made retractable by an actuator simply by attaching the headrest to an upper portion of the seatback, using a pillar. Thus way, there can be provided a retractable headrest for vehicle with a high versatility.
28 Citations
16 Claims
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1. A retractable headrest for vehicle including a pillar having a horizontal shaft, said pillar being provided in an upper portion of a seatback;
- a headrest body having a lower portion rotatably provided around said horizontal shaft of said pillar; and
a retracting mechanism provided inside said headrest body for retracting said headrest body backward, said retracting mechanism comprising;a headrest body biasing means for biasing an upper portion of said headrest body backward; a lock plate provided on the horizontal shaft of said pillar, said lock plate having a first locking part; a latch provided in said headrest body, said latch having a second locking part engageable with said first locking part; a latch biasing means for biasing said latch so as to engage said second locking part with the first locking part of said lock plate when said headrest body is erected in a substantially vertical state; an actuator for disengaging the second locking part of said latch from the first locking part of said lock plate against a basing force from said latch biasing means; wherein said headrest body is retracted backward by disengaging the second locking part from the first locking part of said lock plate, and is kept in a backwardly retracted state by abutting the rear surface of said headrest body against the upper portion of said seatback. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- a headrest body having a lower portion rotatably provided around said horizontal shaft of said pillar; and
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15. A retractable headrest for vehicle including a pillar having a horizontal shaft, said pillar being provided in an upper portion of a seatback;
- a headrest body having a lower portion rotatably provided around said horizontal shaft of said pillar; and
a retracting mechanism provided inside said headrest body for retracting said headrest body backward, said retracting mechanism comprising;a headrest body biasing means for biasing an upper portion of said headrest body backward; a lock plate provided on the horizontal shaft of said pillar, said lock plate having a first locking part; a latch provided in said headrest body, said latch having a second locking part engageable with said first locking part; a latch biasing means for biasing said latch so as to engage said second locking part with the first locking part of said lock plate when said headrest body is erected in a substantially vertical state; and an actuator for disengaging the second locking part of said latch from the first locking part of said lock plate against a basing force from said latch biasing means, wherein said actuator comprises; a motor driven in response to a command from an operation part; a rack to which a driving force from said motor is transmitted; and an arm for disengaging the second locking part of said latch from the first locking part of said lock plate in response to a sliding action of said rack, wherein said latch is rotatably provided in said latch bracket, with said actuator being arranged above said latch bracket, and wherein said rack is arranged horizontally so as to be substantially parallel with the horizontal shaft of said pillar, having an engagement through-hole at a distal end, while said arm takes a substantially letter L shape, having a corner rotatably provided, said arm having a headed shaft on one end thereof to be inserted into said engagement hole of said rack to work in association with said rack, while an other end thereof being arranged in an undersurface of a press-up part of said latch bracket. - View Dependent Claims (16)
- a headrest body having a lower portion rotatably provided around said horizontal shaft of said pillar; and
Specification