Work support
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United States of America Patent
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-
May 3, 2005
Grant Date -
Jul 8, 2004
app pub date -
Feb 15, 2002
filing date -
Mar 22, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The abutment of the rod to the work piece is accomplished in a stable manner by providing an air passage in the inside of the work support for supplying pressurized air for detecting the abutment between the rod and the work piece. Work support is equipped with case, rod, sleeve that elastically deforms to reduce its diameter, hydraulic cylinder for driving rod in an advancing direction, spring for elastically energizing rod in advancing direction, detection nozzle for ejecting pressurized air, air passage connected to detection nozzle, sensor for detecting abutment between the tip of rod and work piece based on air pressure, and a control unit. Work piece is supported by the tip of rod abutting work piece while ejecting pressurized air from detection nozzle, and locks rod by elastically deforming sleeve to reduce its diameter after detecting the abutment of rod by a pressure sensor and control unit.
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