Headrest locking device
AssigneeToyota Boshoku Kabushiki Kaisha
InventorsMasashi Nakanishi, Yuki Kano
Life of this patent
Estimating the term…
Abstract
A headrest locking device comprising a headrest stay and a locking device which is provided in a headrest body which is supported by the headrest stay, wherein the locking device locks the relative movement of the headrest body in the height direction by engaging a notched groove formed in the headrest stay. The locking device comprising a lock plate which is engaged and disengaged against the notched groove by movement in the headrest width direction and a lock spring which urges the lock plate in the width direction to engage the notched groove. The lock plate and the notched groove have contact surfaces that contact each other in a planar manner at an angle facing forward or rearward oblique to the direction of force of the lock spring.
Claims11
A headrest locking device comprising:
- a headrest stay for supporting a headrest body;
- and
- a locking device provided in a support member that is either the headrest body or a headrest support to support the headrest stay, wherein the locking device locks a relative movement in a height direction between the headrest stay and the support member by engaging a notched groove formed in the headrest stay, and
- wherein the locking device further comprises:
- a lock plate configured to engage and disengage against the notched groove by a movement in a headrest width direction relatively to the support member;
- and
- a lock spring configured to urge the lock plate against the support member in the width direction to engage the notched groove in the headrest width direction, wherein
- the lock plate and the notched groove have contact surfaces that contact each other in a planar manner at an angle facing forward or rearward oblique to the direction of force of the lock spring.
A headrest locking device comprising:
- a headrest body having a hollow-shape;
- a headrest stay having an inverted U-shape;
- a main case having a front case and a rear case, wherein the headrest stay is configured to position in between the front case and the rear case;
- a lock plate configured to engage and disengage against each of a plurality of notched grooves;
- a lock spring configured to urge the lock plate to engage each of the plurality notched grooves;
- and
- a release button located on an outer part of the headrest body,
- wherein the lock plate and each of the plurality of notched grooves have contact surfaces that contact each other in a planar manner at an angle facing forward or rearward oblique to the direction of force of the lock spring.
Dependencies are inferred from the claim text.