Upper tool holding apparatus and upper tool separating method from upper tool holding apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 28, 2000
Grant Date -
N/A
app pub date -
Mar 3, 1999
filing date -
Mar 4, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An upper tool holding apparatus includes: an upper tool support portion provided under a holder main body to support an upper tool; an upper tool clamp which is supported in a swingable way with a fulcrum near the approximately central portion in the vertical direction of the holder main body; a pressing member provided at a lower portion of the upper tool clamp to press the upper tool to the upper tool support portion; an engaging member provided at the lower portion of the upper tool clamp; and a clamping force giving means pressing the upper portion side of the upper tool clamp so that the upper tool clamp can clamp the upper tool with the upper tool support portion. In the construction, the engaging member is provided by being divided into a plurality of pieces as engaging split fragments. Furthermore, the respective divided engaging split fragments are respectively provided by being urged in the direction of the upper tool support portion.
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