Stylus attachment for a metrological instrument
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United States of America Patent
Stats
-
Dec 8, 1998
Grant Date -
N/A
app pub date -
May 21, 1997
filing date -
Oct 20, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arrangement for mounting a stylus on a stylus support for a metrological instrument includes a camming pin on a mounting disc of the stylus support, which passes through a mounting hole in a mounting disc of the stylus. A spring applies a sideways force to a sloping cam surface of the camming pin, which is converted into a force pulling the camming pin through the mounting hole and thus holding the mounting discs together. An operator can deform the spring so that it releases the camming pin, allowing the stylus to be mounted or dismounted without applying significant force to the pivot bearing of the stylus support. If excessive radial force is applied to the stylus arm, the spring will ride up the cam surface allowing the stylus to be released from the stylus support, thereby avoiding applying extreme forces to the pivot bearing.
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