Synchromesh device for transmission
US8151962B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2009 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | May 13, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2023/0668
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A synchromesh device for a transmission includes: a shaft; a sleeve; an idler gear; a gear piece; a synchronizer ring; a first spline, a second spline and a third spline, the first spline of the sleeve being engageable with each of the second spline of the gear piece and the third spline of the synchronizer ring; and a first chamfer, a second chamfer and a third chamfer, formed at one end of the first spline, one end of the second spline and one end of the third spline, respectively, for a spline-engagement and for a thrust-through operation. The first chamfer of the sleeve includes a small-diameter side thrusting through the third chamfer at the time of shifting and a large-diameter side thrusting through the second chamfer at the time of shifting. A chamfer angle of the large-diameter side is smaller than a chamfer angle of the small-diameter side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.