Coarse/fine adjustment of a rotary body
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United States of America Patent
Stats
-
Nov 22, 1994
Grant Date -
N/A
app pub date -
Mar 3, 1993
filing date -
Mar 5, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A coarse/fine adjustment of a rotary body, comprising: a worm wheel fitted to a rotary shaft of a rotary body; a worm meshing with the worm wheel and having a first screw; a rotary driving shaft having a second screw engaging with the first screw and rotated by a manipulation member and a switching means for effecting a switchover to rotationally or rectilinearly move the worm engaging with the rotary driving shaft. The worm is biased by a biasing means to mesh with the worm wheel while keeping a thrust state.
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Family
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Cited Art Landscape
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