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US-9440671-B2 · Sep 13, 2016 · US
Transmission ratio variable device
US9010482B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9010482-B2 |
| Application number | US-201314074108-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 7, 2013 |
| Priority date | Nov 16, 2012 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
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A knurled press-fitting portion and an annular groove, which receives foreign matter and is formed to extend in a circumferential direction in front of the press-fitting portion of a cylindrical protruding portion, are provided at an outer peripheral surface of the protruding portion of an output shaft. A fitting portion, which is fitted to a coupling tube by press-fitting, is formed at an outer periphery of an opening end of the protruding portion. An outer peripheral surface of the cylindrical fitting portion and an inner peripheral surface of the cylindrical coupling tube coupled to a Z4 gear are fitted and coupled to each other. The annular groove is closed by the fitting portion in a state where the protruding portion and the coupling tube are coupled to each other. The annular groove is configured so as to prevent foreign matter from being discharged toward a bearing gear.
First claim
Opening claim text (preview).
What is claimed is: 1. A transmission ratio variable device comprising: an input shaft that is coupled to a steering wheel; a housing that supports the input shaft so that the input shaft is rotatable; a motor that is provided so that a motor output shaft is rotatable relative to the housing; a speed reducer that is coupled to the motor output shaft and outputs a steered angle obtained by reducing a motor rotation angle; and an output shaft that transmits the steered angle…
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Frequently asked questions
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- What does patent US9010482B2 cover?
- A knurled press-fitting portion and an annular groove, which receives foreign matter and is formed to extend in a circumferential direction in front of the press-fitting portion of a cylindrical protruding portion, are provided at an outer peripheral surface of the protruding portion of an output shaft. A fitting portion, which is fitted to a coupling tube by press-fitting, is formed at an oute…
- Who is the assignee on this patent?
- Jtekt Corp
- What technology area does this patent fall under?
- Primary CPC classification B62D3/02. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 21 2015 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).