Patent ID: 7938706
Filing Date: 2011-05-10
Classification: H01T

Abstract:
1. A device for inspecting a spark plug insulator for bending, the spark plug insulator including a cylindrical body having a radially enlarged flange at an axially intermediate portion thereof, and a through hole that is formed in the body along an axial direction of the body, the device comprising: an insulator supporting means for supporting the spark plug insulator so as to be slidable in an axial direction of the spark plug insulator; a linear inspection pin that is to be inserted into the through hole of the spark plug insulator supported by the insulator supporting means; and a detecting means for detecting a sliding movement of the spark plug insulator when the spark plug insulator is caused to slide in the axial direction thereof by the inspection pin that is prevented from completely penetrating the through hole of the spark plug insulator owing to bending of the spark plug insulator which exceeds a predetermined tolerance.