Continuously variable transmission
US-2024288052-A1 · Aug 29, 2024 · US
Parking device
US10895322B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10895322-B2 |
| Application number | US-201916282961-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 22, 2019 |
| Priority date | Feb 27, 2018 |
| Publication date | Jan 19, 2021 |
| Grant date | Jan 19, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
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.
First claim
Opening claim text (preview).
What is claimed is: 1. 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. 2. 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.
Assignees
Inventors
Classifications
- F16H63/3425Primary
characterised by pawls or wheels · CPC title
acting on transmission parts · CPC title
Parking lock mechanisms or brakes in the transmission · CPC title
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Frequently asked questions
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- What does patent US10895322B2 cover?
- 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 …
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16H63/3425. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 19 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).