Differential device
US-10221928-B2 · Mar 5, 2019 · US
Planetary gear device
US11674587B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11674587-B2 |
| Application number | US-202217705432-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 28, 2022 |
| Priority date | Mar 29, 2021 |
| Publication date | Jun 13, 2023 |
| Grant date | Jun 13, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A planetary gear device includes: a housing cover disposed at one end portion of a housing in an axis direction, the housing being configured to house a sun gear and a planetary gear inside the housing; and a carrier cover disposed next to the housing cover in the axial direction in the inside, and configured to support a shaft of the planetary gear from one end portion side in the axial direction. One opposing part of a pair of opposing parts opposite to each other in the housing cover and the carrier cover includes a cone-shaped part whose diameter varies in the axial direction, and the other opposing part of the pair of opposing parts includes a sliding part configured to slide on a peripheral surface of the cone-shaped part with a same axis as an axis of the cone-shaped part.
First claim
Opening claim text (preview).
The invention claimed is: 1. A planetary gear device comprising: a housing cover disposed at one end portion of a housing in an axis direction, the housing being configured to house a sun gear and a planetary gear inside the housing; and a carrier cover disposed next to the housing cover in the axial direction in the inside, fixed to a carrier rotatably supporting planetary gear and configured to support a shaft of the planetary gear from one end portion side in the axial direction, wherein one opposing part of a pair of opposing parts opposite to each other in the housing cover and the carrier cover includes a cone-shaped part whose diameter varies in the axial direction, and the other opposing part of the pair of opposing parts includes a sliding part configured to slide on a peripheral surface of the cone-shaped part with a same axis as an axis of the cone-shaped part; wherein the cone-shaped part includes a cone-shaped recess whose center side is recessed with respect to an outer periphery side; and, wherein the sliding part includes a cone-shaped protrusion whose center portion protrudes with respect to an outer periphery part. 2. The planetary gear device according to claim 1 , wherein the cone-shaped recess is a tapered surface whose center side is recessed; and wherein the cone-shaped protrusion is a tapered surface whose center side is protruded. 3. The planetary gear device according to claim 1 , wherein the pair of opposing parts is disposed inside relative to an axis of the planetary gear in a radial direction of the sun gear.
Assignees
Inventors
Classifications
Planet carriers · CPC title
Ring gears with inner teeth · CPC title
of motors and transmissions · CPC title
Covers; Housings · CPC title
characterised by means for reducing vibration or noise · CPC title
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Frequently asked questions
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- What does patent US11674587B2 cover?
- A planetary gear device includes: a housing cover disposed at one end portion of a housing in an axis direction, the housing being configured to house a sun gear and a planetary gear inside the housing; and a carrier cover disposed next to the housing cover in the axial direction in the inside, and configured to support a shaft of the planetary gear from one end portion side in the axial direct…
- Who is the assignee on this patent?
- Enplas Corp
- What technology area does this patent fall under?
- Primary CPC classification F16H1/32. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 13 2023 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).