JPS58138287U

JPS58138287U - spark plug

Info

Publication number: JPS58138287U
Application number: JP3523082U
Authority: JP
Inventors: 植田　惠文
Original assignee: トヨタ自動車株式会社
Priority date: 1982-03-12
Filing date: 1982-03-12
Publication date: 1983-09-17

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のスパークプラグの構造および電気系統の
構成を示す図、第２図、第４図および第６図はそれぞれ
本考案の実施例に係るスパークプラグの要部の断面図、
第３図、第５図および第７図はそれぞれ接地電極の斜視
図である。１・・・バッチ１八３・・・イグニッションスイッチ、
５・・・イグニッションコイル、１１．　１６．　２０
゜２３・・・スパークプラグ、１２・・・中心電極、１
３゜１７、　２１．　２４・・・接地電極、２２．２５
・・・溝。FIG. 1 is a diagram showing the structure and electrical system configuration of a conventional spark plug, and FIGS. 2, 4, and 6 are sectional views of main parts of a spark plug according to an embodiment of the present invention, respectively.
3, 5 and 7 are perspective views of the ground electrode, respectively. 1...Batch 183...Ignition switch,
5...Ignition coil, 11. 16. 20
゜23... Spark plug, 12... Center electrode, 1
3゜17, 21. 24...Grounding electrode, 22.25
···groove.

Claims

[Claims for Utility Model Registration] (1) The ground electrode that is provided at the tip of the spark plug body and generates sparks between it and the center electrode is U-shaped, and both U-shaped legs of this ground electrode A spark plug characterized in that the spark plug is connected to a spark plug body. (2) The spark plug according to claim 1, wherein a groove is carved in the inner surface of the U-shaped bottom of the ground electrode. (3) The spark plug according to claim 2, wherein the groove extends in the longitudinal direction of the ground electrode. (4) the groove is a first groove extending in the longitudinal direction of the ground electrode;
The spark plug according to claim 2, which comprises a second groove substantially orthogonal to the first groove.