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Title:
METHOD FOR MANUFACTURING ANNULAR MEMBER AND ANNULAR MEMBER WITH LEG
Document Type and Number:
WIPO Patent Application WO/2007/026756
Kind Code:
A1
Abstract:
A method for manufacturing an annular member in which a work member (20b) formed of a circular bottom part (22b) having, at its center, a hole (23b) and an inner wall part (24b) around the hole (23b) and a skirt-like outer wall part (25b) having leg parts (26b) on the outer periphery of the bottom part (22b) and connection parts (27b) connecting the leg parts (26b) to each other is formed by press-working, one time, a prepared rough material. The connection parts (27b) and the portion of the formed work member including the inner wall part (24b) are cut off from the formed work member (20b) to form the annular member with the legs having the circular bottom part (22b) with the hole (23b) and the leg parts (26b) on the outer periphery of the bottom part (22b).

Inventors:
ADACHI TAKEHIKO (JP)
SAKAI SATOSHI (JP)
NAKAJIMA MASAKI (JP)
SAKAMAKI HIROMU (JP)
TERAO ARIYOSHI (JP)
NAGAI HIDEYUKI (JP)
TAKASAHARA YASUYUKI (JP)
Application Number:
PCT/JP2006/317094
Publication Date:
March 08, 2007
Filing Date:
August 30, 2006
Export Citation:
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Assignee:
AISIN AW CO (JP)
ADACHI TAKEHIKO (JP)
SAKAI SATOSHI (JP)
NAKAJIMA MASAKI (JP)
SAKAMAKI HIROMU (JP)
TERAO ARIYOSHI (JP)
NAGAI HIDEYUKI (JP)
TAKASAHARA YASUYUKI (JP)
International Classes:
B21J5/06; B21K1/30; B21K21/06; F16H57/08
Foreign References:
JP2001105085A2001-04-17
JPH10216888A1998-08-18
JPS489259A
JP2001343064A2001-12-14
JP2003014083A2003-01-15
JPH0625643U1994-04-08
JPH06114488A1994-04-26
Attorney, Agent or Firm:
ITEC INTERNATIONAL PATENT FIRM (3-3 Uchisaiwai-cho 1-chom, Chiyoda-ku Tokyo 11, JP)
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