Actuator
US6619846B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2001 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Jun 24, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2025/2075
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A guide mechanism is provided with first guide rails each having a circular arc-shaped cross section to be installed to first long grooves each having a circular arc-shaped cross section formed on an inner wall surface of a frame, and second guide rails each having a circular arc-shaped cross section to be installed to second long grooves each having a circular arc-shaped cross section formed on side surfaces of a slider opposed to the inner wall surface of the frame. Accordingly, the arrangement of ball-rolling grooves in the slider can be performed more freely, and it is possible to mitigate the concentration of stress exerted by external force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.