To provide a glow plug wherein a conductor holder is unrotatably held in a cylindrical housing.
A conductor wire holder 600 is fitted in a basic end side cylindrical member 130 of the housing 100, and constituted by forming a central hole portion 620, four conductor wire connection hole portions 630 and both leg portions 640 on a columned holder body 610. The conductor wire holder 600 is unrotatably engaged in both slot portions 514 of a sensor casing 510 of a combustion pressure sensor 500 at both leg portions 640. An electrode lead 525 of the combustion pressure sensor 500 and a terminal member 350 for a heater member extending from an axial portion 30 are respectively electrically connected with a conductor wire 800 for the sensor and a conductor wire 810 for the heater member extending in the basic end-side cylindrical member 130 through a grommet 700 fitted to a basic end-side region of the basic end-side cylindrical member 130 through crimping terminals 650 in the conductor wire connection hole portions 630 of the holder body 610.
YAMADA YUICHI
ISHIHARA AKIHITO
