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US 10,895,322 B2Granted
Parking device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsHiroaki Kimura, Kensuke Akimoto, Ryoki Il, Kenji Asai
Life of this patent
Estimating the term…
Abstract
A parking device includes a parking gear, a parking pawl, and a torsion spring. The parking gear is directly coupled to an axle. The parking pawl is pivotably supported by a fulcrum pin and provided with a claw configured to be able to mesh with a tooth space of the parking gear. The torsion spring is fitted on the fulcrum pin, with a first end of the torsion spring mounted on the parking pawl and a second end of the torsion spring mounted on a holding member that holds the fulcrum pin.
Claims2
A parking device, comprising:
- a parking gear directly coupled to an axle;
- a parking pawl that is pivotably supported by a fulcrum pin and provided with a claw configured to be able to mesh with a tooth space of the parking gear;
- and
- a torsion spring that is fitted on the fulcrum pin and includes a first end of the torsion spring mounted on the parking pawl and a second end of the torsion spring mounted on a housing boss that is provided on a housing, the second end being positioned on an opposite side of the torsion spring from the first end,
- wherein:
- the fulcrum pin is provided with a restriction part configured to restrict a movement of the torsion spring away from the parking pawl in an axial direction of the fulcrum pin,
- the restriction part is a large-diameter portion that is provided at an end of the fulcrum pin, an outside diameter of the large-diameter portion being larger than an outside diameter of the torsion spring;
- and
- the restriction part is configured such that the movement of the torsion spring away from the parking pawl is restricted as the torsion spring butts against a side surface of the large-diameter portion in the axial direction of the fulcrum pin.
6 more elements
A parking device, comprising:
- a housing including a housing boss;
- a parking gear directly coupled to an axle;
- a parking pawl that is pivotably supported by a fulcrum pin and provided with a claw configured to be able to mesh with a tooth space of the parking gear;
- and
- a torsion spring that is fitted on the fulcrum pin and includes a first end of the torsion spring mounted on the parking pawl and a second end of the torsion spring mounted on the housing boss, the second end being positioned on an opposite side of the torsion spring from the first end,
- wherein the parking pawl and the torsion spring are disposed in the housing,
- wherein the housing boss restricts a movement of the torsion spring away from the parking pawl in an axial direction of the fulcrum pin, and
- the housing boss has an outside diameter that is larger than an outside diameter of the torsion spring.
5 more elements
Dependencies are inferred from the claim text.