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Title:
MAIN FITTING MANUFACTURING DEVICE AND MAIN FITTING MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2016131994
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To align the direction of an ignition electrode with a cylinder head when an ignition plug is fitted to the cylinder head.SOLUTION: The main fitting manufacturing device is used for the ignition plug 100 of an automobile and for manufacturing a main fitting 20 having a hollow shape and including an ignition electrode 25, and manufactures the main fitting 20 from a main fitting blank 20a. The main fitting manufacturing device includes a rotational direction positioning part for positioning the ignition electrode 25 in a rotational direction around an axis extending in the longitudinal direction of the main fitting blank 20a, a plurality of rolling dies 320 for rolling threads on the main fitting blank 20a, and a conveying holding part 220 for holding the main fitting blank 20a positioned by the rotational direction positioning part and positioning it among the plurality of rolling dies 320.SELECTED DRAWING: Figure 5

Inventors:
NAITO SHUICHI
Application Number:
JP2015007669A
Publication Date:
July 25, 2016
Filing Date:
January 19, 2015
Export Citation:
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Assignee:
NAITO SHUICHI
International Classes:
B21H3/04; H01T13/20; H01T21/02
Domestic Patent References:
JP2003323963A2003-11-14
Attorney, Agent or Firm:
Seiji Ohno
Hiroyuki Ohno