Coupling arm for transmitting linear motion
US4569248A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 1983 |
| Grant date | Feb 11, 1986 |
| Priority date | — |
| Expiry date | Oct 18, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2151
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A coupling arm for coupling a driving mechanism to a mechanism to be driven is presented. The arm includes a length of suitable rigid material with flexure points selectively formed therein. The flexure points allow the coupling arm to transmit a linear motion in both a forward and reverse direction without introducing backlash, yet allow the arm to flex in order to reduce stress forces caused by misalignment. The flexure points are formed by removing a sufficient amount of the rigid material at selected regions along the length thereof such that the remaining thickness allows the arm to bend. The coupling arm is ideally suited for applications requiring repeatable precision linear movement, such as a precise XY positioning table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.