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US 11,279,263 B2Granted
Lifter device
AssigneeToyota Boshoku Kabushiki Kaisha
InventorsYusuke Kajino, Yasuaki Suzuki
Life of this patent
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Abstract
Pawls in a lifter device, having: outer teeth that are rotatably supported by shafts for in lock plates and are meshed with inner teeth of a base; and pins that are provided in an intermediate section in the radial direction, between the shaft center of the shafts and the teeth tips of the inner teeth, and are pressed in the rotation direction by a rotation transmittance plate during a release operation. The pins have a protruding shape that protrudes from the pawls in the thrust direction.
Claims3
A lifter device comprising:
- a pinion gear configured to mesh with an input gear of a link mechanism that lifts and lowers a seat;
- and
- a rotation control device that couples the pinion gear and an operation handle to control rotation of the pinion gear, the operation handle being operated in a corresponding rotation direction when the seat is lifted and lowered;
- and
- a base that supports the pinion gear such that the pinion gear is rotatable,
- wherein the rotation control device includes:
- an input member coupled to the operation handle and configured to be rotated about a rotation axis of the pinion gear by a rotation operation of the operation handle;
- a feed unit coupled to the input member and the pinion gear and configured to transmit rotation of the input member to the pinion gear as feed rotation;
- a lock unit configured to stop rotation of the pinion gear that is feed-rotated by the feed unit relative to the base;
- and
- a release member configured to be rotated about the rotation axis of the pinion gear by rotation input from the input member to release the lock unit,
- wherein the lock unit includes a lock pawl attached to a rotation member integrally coupled with the pinion gear in the rotation direction, the lock pawl being configured to be meshed in a biased state with a base gear of the base that has inner teeth to stop the rotation of the pinion gear,
- wherein the lock pawl is rotatably supported on a shaft portion of the rotation member about an axis parallel to the rotation axis of the pinion gear,
- wherein the lock pawl includes:
- outer teeth configured to be meshed with the base gear;
- and
- a pressed portion provided at an intermediate portion in a radial direction between a shaft center of the shaft portion and a tooth tip of the inner teeth of the base gear, the pressed portion being configured to be pressed in the rotation direction by the release member to be released, and
- wherein the pressed portion includes a protrusion protruding in a thrust direction from the lock pawl.
15 more elements
Dependencies are inferred from the claim text.