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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING SPARK PLUG
Document Type and Number:
WIPO Patent Application WO/2015/107884
Kind Code:
A1
Abstract:
The present invention brings the movement distance of a swaging jig in a swaging press step closer to a predetermined target movement distance. The swaging press step includes (1) a step for causing the load of the swaging jig to reach a set contact load by moving the swaging jig forward in contact with a part to be swaged, and (2) a buckling step for moving the swaging jig further forward over a set distance and thereafter stopping the swaging jig. On the basis of a first overshoot amount in the step (1) and/or a second overshoot amount in the step (2), the set contact load and/or the set distance is adjusted to thereby reduce a difference between the target movement distance and an actual movement distance of the swaging jig.

Inventors:
KAWAI, Tomoki (C/O NGK SPARK PLUG CO. LTD, 14-18,Takatsuji-cho, Mizuho-ku, Nagoya-sh, Aichi 25, 〒4678525, JP)
Application Number:
JP2015/000096
Publication Date:
July 23, 2015
Filing Date:
January 13, 2015
Export Citation:
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Assignee:
NGK SPARK PLUG CO., LTD. (14-18, Takatsuji-cho Mizuho-ku, Nagoya-sh, Aichi 25, 〒4678525, JP)
International Classes:
H01T21/02
Foreign References:
JP2010212230A2010-09-24
JP2013101805A2013-05-23
Other References:
See also references of EP 3096421A4
Attorney, Agent or Firm:
AOKI, Noboru et al. (C/O NGK SPARK PLUG CO. LTD, 2808 Oaza-Iwasaki, Komaki-sh, Aichi 10, 〒4858510, JP)
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