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US 10,118,509 B2Granted
Seat reclining device for vehicle
AssigneeAisin Seiki Kabushiki Kaisha
InventorsYasuhiro Kojima, Mikihito Nagura, Shinya Isobe
Life of this patent
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Abstract
When a first memory member rotates relative to a second rotating member to a predetermined relative rotation position at which a second memory member sliding on a sliding surface is capable of entering an engagement slot, the slide-trailing end of the second memory member, which leaves the sliding surface last, is a corner having no round shape. Further, the boundary between the sliding surface and the engagement slot is also a corner having no round shape.
Claims10
A seat reclining device for a vehicle, comprising:
- a first rotating member;
- a second rotating member that is coaxial and arranged side by side with the first rotating member;
- a locking member that restricts relative rotation between the first rotating member and the second rotating member;
- a first memory member that is capable of rotating coaxially and integrally with the first rotating member by frictionally engaging with an outer surface of the first rotating member and capable of rotating relative to the first rotating member against frictional engagement force;
- a second memory member that is capable of engaging with and disengaging from the first memory member;
- and
- an operation mechanism that causes the second memory member to perform engaging/disengaging action with the first memory member and selectively locks and unlocks the locking member in conjunction with the engaging/disengaging action, wherein
- the first memory member includes
- a sliding surface that, by sliding on the second memory member, restricts engaging action of the second memory member that is accompanied by the locking of the locking member, and
- an engagement slot, wherein, when the first memory member is at a predetermined relative rotation position with respect to the second rotating member, the engagement slot allows engaging action of the second memory member and engages with the second memory member, which has entered the engagement slot through the engaging action, thereby restricting relative rotation of the first memory member with respect to the second rotating member, and
- the second memory member has a slide-trailing end that leaves the sliding surface last during relative rotation of the first memory member to the predetermined relative rotation position, wherein the slide-trailing end and a boundary between the sliding surface and the engagement slot are both sharp corners.
8 more elements
A seat reclining device for a vehicle, comprising:
- a first rotating member;
- a second rotating member that is coaxial and arranged side by side with the first rotating member;
- a locking member that restricts relative rotation between the first rotating member and the second rotating member;
- a first memory member that is capable of rotating coaxially and integrally with the first rotating member by frictionally engaging with an outer surface of the first rotating member and capable of rotating relative to first rotating member against frictional engagement force;
- a second memory member that is capable of engaging with and disengaging from the first memory member;
- and
- an operation mechanism that causes the second memory member to perform engaging/disengaging action with the first memory member and selectively locks and unlocks the locking member in conjunction with the engaging/disengaging action, wherein
- the first memory member includes
- a sliding surface that, by sliding on the second memory member, restricts engaging action of the second memory member that is accompanied by the locking of the locking member, and
- an engagement slot, wherein, when the first memory member is at a predetermined relative rotation position with respect to the second rotating member, the engagement slot allows engaging action of the second memory member and engages with the second memory member, which has entered the engagement slot through the engaging action, thereby restricting relative rotation of the first memory member with respect to the second rotating member, and
- the second memory member has a slide-trailing end that leaves the sliding surface last during relative rotation of the first memory member to the predetermined relative rotation position, wherein, at a boundary between the sliding surface and the engagement slot, an angle between the slide-trailing end and an insertion direction of the second memory member is smaller than an angle between a side wall surface of the engagement slot and the insertion direction.
8 more elements
Dependencies are inferred from the claim text.