Title:
MANUFACTURING METHOD OF FOREIGN SUBSTANCE DETECTION SENSOR
Document Type and Number:
Japanese Patent JP2016058305
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a foreign substance detection sensor by which a spacer can be easily extracted from a hollow insulator.SOLUTION: In a spiral shape forming step, four peripheral spacers 52 having a smaller diameter than that of a central spacer 51 and two electrode wires 23 and 24 are spirally wound around an outer periphery of the central spacer 51 in such a manner that the two peripheral spacers 52 are each disposed between the electrode wires 23 and 24 which are arranged radially across the central spacer 51. In a hollow insulator forming step, a hollow insulator 22 is formed by covering an outer periphery of the electrode wires 23 and 24 and the peripheral spacers 52 which are wound around the central spacer 51 with an insulative resin. In a first extraction step, the central spacer 51 is extracted from the hollow insulator 22, and then a second extraction step is implemented for extracting the peripheral spacers 52 from the hollow insulator 22. Then, one of the two peripheral spacers 52 which are neighboring to each other between the electrode wires 23 and 24 is first pulled in a longitudinal direction of the hollow insulator 22.SELECTED DRAWING: Figure 8
Inventors:
ISHIHARA SHUSUKE
SUZUKI TATSUYA
SUZUKI TATSUYA
Application Number:
JP2014185243A
Publication Date:
April 21, 2016
Filing Date:
September 11, 2014
Export Citation:
Assignee:
ASMO CO LTD
International Classes:
H01H11/00; G01L1/20; H01H13/18
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
Previous Patent: A manufacturing method of an electric heater and an electric heater
Next Patent: A cable for flexible regions
Next Patent: A cable for flexible regions