Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD OF FORMING INSERT COLLAR
Document Type and Number:
Japanese Patent JP2012217995
Kind Code:
A
Abstract:

To provide a method of forming an insert collar, finished products of which have neither seams nor connected portions, and which has high circularity and vertical flatness, in which all steps are carried out by a series of continuous steps to significantly improve fabrication efficiency.

The method of forming the insert collar is a method of using a progressive feeding die 2, and includes the steps of feeding a long-sized metal plate 1 by one pitch to a progressive feeding die, processing the metal plate 1 individually in each stage, sequentially feeding the metal plate 1 to a next stage for application of additional processing, and completing the processing in a final stage.


Inventors:
OHARA TOSHIKI
TANAKA SAMON
Application Number:
JP2011082669A
Publication Date:
November 12, 2012
Filing Date:
April 04, 2011
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
LADVIK CO LTD
International Classes:
B21D53/18; B21D22/20
Domestic Patent References:
JP2010058142A2010-03-18
JP2000141404A2000-05-23
JP2010094689A2010-04-30
JP2003245730A2003-09-02
JP2010058142A2010-03-18
JP2000141404A2000-05-23
JP2010094689A2010-04-30
JP2003245730A2003-09-02
Attorney, Agent or Firm:
Kazuo Sugiyama
Katsuko Iwata