Coupling arm for transmitting linear motion
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United States of America Patent
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-
Feb 11, 1986
Grant Date -
N/A
app pub date -
Oct 18, 1983
filing date -
Oct 18, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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