Patent ID: 11872919
Assignee: WOOBO TECK CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 2:
3. The seat headrest apparatus of claim 2, wherein the locking mechanism includes:
a lock plate bezel slidably provided in the upper guide in a direction perpendicular to a longitudinal direction of the post stay;
a lock plate coupled to the lock plate bezel and configured to be selectively inserted into one of the notch grooves of the post stay;
a spring provided to apply elastic force to the lock plate bezel in a direction in which the lock plate is inserted into the one of the notch grooves; and
a release button provided on the upper guide so that a displacement in a direction in which the lock plate is separated from the one of the notch grooves is transferred to the lock plate bezel in response to a user's operation thereof.