CRANKSHAFT AND METHOD FOR MANUFACTURING SAME

Title:

CRANKSHAFT AND METHOD FOR MANUFACTURING SAME

Document Type and Number:

WIPO Patent Application WO2010110133

Kind Code:

A1

Abstract:

In a crankshaft (200), one hole (213L) formed in a crankpin (213) has a bottom surface with a wider area and is formed to a shallower depth from the surface of the crankpin than the other hole (213M). In the formation of the holes (213L, 213M), a preform (200) for the crankshaft, which has a shape smaller than that of a cavity, is disposed in a mold, and punches are inserted simultaneously into the crankpin (213). Thus, the holes (213L, 213M) are formed simultaneously in both sides of each crankpin (213) of the preform (200).

Inventors:

OHNUMA TAKAYUKI (JP)
ANDO TSUTOMU (JP)
ITO YASUHIRO (JP)

Application Number:

PCT/JP2010/054473

Publication Date:

September 30, 2010

Filing Date:

March 10, 2010

Export Citation:

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Assignee:

HONDA MOTOR CO LTD (JP)
OHNUMA TAKAYUKI (JP)
ANDO TSUTOMU (JP)
ITO YASUHIRO (JP)

International Classes:

F16C3/08; B21K1/08; F16C3/14

Foreign References:

JPH01135920A	1989-05-29
JPS59197336A	1984-11-08
JPH01164811A	1989-06-28
JP2005155873A	2005-06-16
JPS582417U	1983-01-08
JPH062521A	1994-01-11
JPS61143727U	1986-09-05
JPH06249230A	1994-09-06
JPH0666139A	1994-03-08
JP2005114131A	2005-04-28
JPS61143727U	1986-09-05
JP2009027050A	2009-02-05

Other References: