EP 1026447 A2 20000809 - Glow plug
Title (en)
Glow plug
Title (de)
Glühkerze
Title (fr)
Bougie à incandescence
Publication
Application
Priority
JP 2699499 A 19990204
Abstract (en)
The metallic shell (20) of a glow plug has a cylindrical male-threaded portion (21) and a tightening portion (22). The tightening portion (22) is formed to have an outer circumferential surface of a shape corresponding to that of a 12-point nut. By virtue of this structure, the tightening portion (22) can have a greater wall thickness as compared with a conventional tightening portion which has a an outer circumferential surface of a shape corresponding to that of a hexagon nut. Therefore, it becomes possible to made the glow plug thinner, while maintaining the strength of the tightening portion (22). <IMAGE> <IMAGE>
IPC 1-7
IPC 8 full level
F23Q 7/00 (2006.01); H01R 13/11 (2006.01)
CPC (source: EP KR)
F23Q 7/001 (2013.01 - EP); H01R 13/11 (2013.01 - KR)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1026447 A2 20000809; EP 1026447 A3 20040825; EP 1026447 B1 20071114; DE 69937539 D1 20071227; DE 69937539 T2 20080918; JP 2000227220 A 20000815; JP 4128295 B2 20080730; KR 100678292 B1 20070201; KR 20000057030 A 20000915
DOCDB simple family (application)
EP 99310206 A 19991216; DE 69937539 T 19991216; JP 2699499 A 19990204; KR 19990054219 A 19991201