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Patent Searching and Data


Title:
UPPER DIE DEVICE AND PUNCH
Document Type and Number:
WIPO Patent Application WO/2007/004601
Kind Code:
A1
Abstract:
An upper die device (1) where a stripper unit (25) is detachably attached to the upper part of a punch guide (3) into which a punch body (13) having at its lower end a punch edge (9) is vertically movably fitted, the stripper unit (25) having an adjustment screw member (27) screwed to a threaded section (17) at the upper part of the punch body (13) and also having an urging means (43) for urging the punch body (13) upward. A retainer collar (21) is placed between the punch guide (3) and the stripper unit (25) so that the collar can be rotated and fixed relative the stripper unit (25), and the retainer collar (21) has an engagement piece (55) whose head is engageable with an engagement section (19) formed in the punch body (13).

Inventors:
ENDO SHIGERU
Application Number:
PCT/JP2006/313211
Publication Date:
January 11, 2007
Filing Date:
July 03, 2006
Export Citation:
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Assignee:
AMADA CO LTD (JP)
APROTEC CO LTD (JP)
ENDO SHIGERU
International Classes:
B21D28/34; B21D37/14
Foreign References:
JP2002205130A2002-07-23
JP2003266135A2003-09-24
JP2005246393A2005-09-15
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (2-8 Toranomon 1-chome, Minato-k, Tokyo 01, JP)
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