ABRASIVE MACHINE
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United States of America Patent
Stats
-
Aug 28, 2001
Grant Date -
Sep 6, 2001
app pub date -
Sep 8, 1999
filing date -
Sep 3, 1997
priority date (Note) -
Granted
status (Latency Note)
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Abstract
The abrasive machine of the present invention is capable of smoothly adjust the pressing force of an upper plate. The abrasive machine includes a plate supporting mechanism, which supports the upper polishing plate and is capable of adjusting a pressing force. The plate supporting mechanism comprises: a base frame; a cylinder unit being provided to an upper part of the base frame,; a rotary plate being rotatably attached to a lower end of a piston rod of the cylinder unit; a plurality of connecting rods being pierced through the rotary plate, lower ends of the connecting rods being connected to the upper plate so as to rotate the upper plate together with the rotary plate; and a plurality of elastic members being provided between the stopper sections of the connecting rods and the rotary plate, whereby the pressing force of the upper plate is adjusted by adjusting a lifting force of the cylinder unit, which suspends the upper plate.
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