Hydraulic expanding lock
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United States of America Patent
Stats
-
Sep 13, 2016
Grant Date -
May 16, 2013
app pub date -
Jul 25, 2011
filing date -
Jul 26, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a hydraulic expanding chuck (1) having a main body (2) and an expanding bush (3), which is inserted into the main body (2) to form at least one pressure chamber (5a, 5b) and is intended for chucking a tool. The expanding bush (3) has a radial opening (20), which is arranged in alignment with a driver (21) which is held adjustably in the main body (2) and can be moved via the opening (20) into positive engagement with a driving surface (22) on the tool shank of a tool to be received in the expanding bush (3). According to the invention, the driver (21) has a driver screw (23), which can be driven from radially outside the hydraulic expanding chuck (1) and is screwed into a threaded bore (24) formed in the main body (2) in alignment with the radial opening (20).
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