Reclining device
AssigneeShiroki Corporation
InventorKoji Ito
Life of this patent
Estimating the term…
Abstract
[Problem] The present invention addresses the problem of providing a reclining device in which a pawl moves smoothly, does not slip and locks well. [Solution] A cam part that moves a pawl (33) in the direction of a locked position is configured from a rotating cam (first cam) (31) that pushes the pawl (33) in the direction of the locked position and a cam (second cam) (34) that is pressed by the rotating cam (31) and pushes the pawl (33) in the direction of the locked position while pressing same against a guide (25c). The cam part is configured so that when the pawl (33) located at the unlocked position moves to the locked position, the cam part initially presses the pawl (33) with the rotating cam (31), and when the pawl (33) is at the locked position, presses the pawl (33) with the cam (34).
Claims9
A reclining apparatus, comprising:
- a first member, which is provided with internal teeth along a circumferential direction thereof;
- a second member, which is stacked on the first member and is provided to be rotatable relative to the first member in the circumferential direction;
- a pawl, which is movably provided on the second member and is provided with external teeth formed to engage with the internal teeth;
- a guide, which is formed in the second member to guide the pawl between a locked position in which the internal teeth are engaged with the external teeth and an unlocked position in which the internal teeth are not engaged with the external teeth;
- and
- cam parts provided between the first member and the second member to move the pawl in a position of the locked position,
- wherein the cam parts comprise:
- a first cam rotatably provided on an axis of a relative rotation and pressing the pawl in a direction of the locked position;
- and
- a second cam provided between the first cam and the pawl and pressed by the first cam to press the pawl in the direction of the locked position while pressing the pawl against the guide,
- wherein, when the pawl located at the unlocked position moves to the locked position, the cam parts initially press the pawl with the first cam and then press the pawl with the second cam in a state where the pawl is at the locked position, and
- wherein, the cam parts press the pawl only with the second cam in the state where the pawl is at the locked position.
Dependencies are inferred from the claim text.