Clamping apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 15, 2000
Grant Date -
N/A
app pub date -
Oct 30, 1998
filing date -
Oct 31, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A housing (11) includes an annular driving member (16), into which a cylindrical pull rod (12) is inserted. An actuation member (26) is inserted into the pull rod (12). At the time of clamping, the pull rod (12) has an upper end portion fitted into a stepped hole (2) of a workpiece (1) and the driving member (16) is lowered. Then, first the pull rod (12) descends relatively to the actuation member (26) to project a plurality of engaging balls (13) outwards and subsequently these balls (13) are brought into butting contact with a lower step portion (8) of the stepped hole (2). Thus the driving member (16) pulls the workpiece (1) downward through the pull rod (12) and the balls (13).
First Claim
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International Classification(s)
Cited Art Landscape
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