发明名称 Deflection inspecting device for spark plug insulator, deflection inspecting method for spark plug insulator, and manufacturing method for spark plug insulator
摘要 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 formed in the body along an axial direction of the body. The inspection device includes 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 by the inspection pin 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.
申请公布号 US7938706(B2) 申请公布日期 2011.05.10
申请号 US20080529827 申请日期 2008.11.18
申请人 NGK SPARK PLUG CO., LTD. 发明人 HONDA TOSHITAKA;KURONO HIROKAZU
分类号 F23Q23/08 主分类号 F23Q23/08
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