Clamping chuck for a machine tool
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United States of America Patent
Stats
-
Nov 13, 1990
Grant Date -
N/A
app pub date -
Nov 9, 1988
filing date -
Nov 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a clamping chuck. The clamping parts of the jaws are connected to support pieces sliding radially inside the body by means of bolts sliding axially inside these support pieces and provided with teeth. An axially sliding operating ring causes the jaws to clamp by acting on the support pieces by means of levers for example. The bolts are operated by actuating members. To avoid undesired clamping when the clamping parts are disassembled or adjusted, means lock the operating ring when an actuating member is in the position corresponding to retraction of the bolt, preferably before this retraction can be performed.
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