JPH0380357U

JPH0380357U -

Info

Publication number: JPH0380357U
Application number: JP14104189U
Authority: JP
Priority date: 1989-12-07
Filing date: 1989-12-07
Publication date: 1991-08-16

Description

[Brief explanation of drawings]

第１図は本考案に係る一実施例を示す断面図、
第２図は組立を示す図、第３図は従来例を示す断
面図である。２１……ホルダ、２１ａ……段部、２２……プ
ロテクタ、２２ａ……拡径部、２３……ジルコニ
アチユーブ、２３ａ……段部、２４……アダプタ
、２４ａ……縮径部。 FIG. 1 is a sectional view showing an embodiment of the present invention;
FIG. 2 is a diagram showing assembly, and FIG. 3 is a sectional view showing a conventional example. 21...Holder, 21a...Step part, 22...Protector, 22a...Enlarged diameter part, 23...Zirconia tube, 23a...Step part, 24...Adapter, 24a...Reduced diameter part.

Claims

[Scope of utility model registration request]

In an oxygen sensor, a sensor element is made to protrude from the tip of a cylindrical holder, and the sensor element is covered by a cylindrical protector whose tip is closed and has a slit in the side wall. This protector is inserted from the rear end side of the holder so that it protrudes from the front end side, and the enlarged diameter part is locked with the stepped part formed on the inner circumference of the holder, and in this state, the protector is inserted into the protector. An oxygen sensor for an internal combustion engine, characterized in that the protector is fixed by inserting a sensor element and pressing a step formed on the outer periphery of the rear end of the sensor element against the rear surface of the enlarged diameter part of the protector.