Jig for use with punch press
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United States of America Patent
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Jun 11, 1991
Grant Date -
N/A
app pub date -
Nov 9, 1989
filing date -
Nov 10, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A jig for positioning a press plate is used with a punch press which perforates the press plate to define reference holes or recesses that will be used to position the press plate in a printing press. While pins of the jig are being fitted in respective reference holes or recesses defined in advance in the press plate, reference end surfaces of the jig are held against a reference surface of the punch press to position the press plate in a first direction in which the press plate is inserted into the press plate. Then, other pins of the jig are fitted in a groove of the punch press to position the punch press in a second direction that is normal to the first direction. With the press plate being thus positioned, it is perforated by the punch press. Holes or recesses thus formed in the press plate have a certain positional relation to the reference holes or recesses already defined in the press plate, and will be used as a positioning reference when the press plate is set on the printing plate.
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