Wave-gear-type linear-actuation mechanism
US8191439B2 · kind B2 · utility
17Cited by
4References
7Claims
0Family size
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Key dates
| Filing date | May 7, 2009 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Nov 6, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19967
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A wave-gear-type linear-actuation mechanism comprises a flat-type wave gear; a lead screw that is a structural component of the wave gear and is formed on an outer peripheral surface of a first circular spline; and a linear-actuation cylinder threaded onto the lead screw, a linear-actuation cylinder 4 having a screw groove that is formed in an inner peripheral surface thereof. It is possible to obtain a linear-actuation mechanism whose holding force during reverse input mode (speed increasing mode) is higher than cases where a cup-type flexible screw is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.