Abrading – Machine – Rotary reciprocating tool
Patent
1996-09-23
1999-01-19
Rose, Robert A.
Abrading
Machine
Rotary reciprocating tool
451456, B24B 700
Patent
active
058608524
ABSTRACT:
An oscillating spindle sander having a spindle rotatably mounted in a cabinet. An external end of the spindle is adapted to receive a sanding drum. An upper cam pulley is fixedly attached to the spindle and a lower cam pulley is rotatably attached to the spindle within the cabinet. The upper and lower cam pulleys have face-to-face annular cam surfaces having complementary sinusoidal contours with diametrically opposite lobes and diametrically opposite valleys. The upper and lower cam pulleys have a toothed rim connected by individual drive belts to a common drive pulley rotated by an electric motor. The number of teeth on the toothed rims of the upper and lower cam pulleys are different, causing the upper and lower cam pulleys to rotate relative to each other. The annular cam surfaces cause the upper cam pulley and the spindle to be oscillated in a vertical direction in response to the relative rotation between upper and lower cam pulleys.
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Wood Magazine, Sep. 1994, Oscillating Spindle Sanders Under $700 we put them to the test, pp. 78-82.
Everts Robert C.
Hashii Toshimitsu
Rose Robert A.
Ryobi North America Inc.
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