ZEROABLE DEPTH SCALE FOR DRILL PRESSES AND METHODS THEREFOR
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United States of America Patent
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N/A
Issued Date -
Jun 7, 2012
app pub date -
Dec 5, 2010
filing date -
Dec 5, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A drill press includes a head stock, a pinion shaft, and a quill coupled with the pinion shaft. A pinion shaft hub is connected with an outer end of the pinion shaft and is located adjacent a side wall of the head stock. The pinion shaft hub is rotatable for rotating the pinion shaft, which provides reciprocating movement to the quill along a vertical axis. A stationary zeroing element is mounted on the head stock, and a depth scale is mounted on the pinion shaft hub adjacent the stationary zeroing element. The depth scale and the pinion shaft hub are frictionally coupled together so that the depth scale normally rotates simultaneously with the pinion shaft hub, however, the depth scale is rotatable relative to the pinion shaft hub upon exceeding a friction force that normally resists movement of the depth scale relative to the pinion shaft hub.
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