JPH0232692U - - Google Patents
Info
- Publication number
- JPH0232692U JPH0232692U JP11152188U JP11152188U JPH0232692U JP H0232692 U JPH0232692 U JP H0232692U JP 11152188 U JP11152188 U JP 11152188U JP 11152188 U JP11152188 U JP 11152188U JP H0232692 U JPH0232692 U JP H0232692U
- Authority
- JP
- Japan
- Prior art keywords
- tip
- cylindrical
- insulator
- groove
- fitted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012212 insulator Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Spark Plugs (AREA)
Description
第１図は本考案にかかるスパークプラグの第１
実施例の部分斜視図、第２図は第２実施例の部分
斜視図、第３図は従来例の部分斜視図である。
図中、２…セラミツク製絶縁体、３…中心電極
、５…主体金具、６，１０２…溝、７，７Ａ，２
００…外側電極、８，Ａ…溶接棒、５３…テーパ
面。
Figure 1 shows the first spark plug according to the present invention.
FIG. 2 is a partial perspective view of the second embodiment, and FIG. 3 is a partial perspective view of the conventional example. In the figure, 2... Ceramic insulator, 3... Center electrode, 5... Metal shell, 6, 102... Groove, 7, 7A, 2
00...Outer electrode, 8, A...Welding rod, 53...Tapered surface.
Claims (1)
込み、この絶縁体を中心電極が同軸となるよう筒
状の主体金具に嵌め込み、該主体金具の筒状先端
部に中心軸の先端方向に向かつて傾斜する溝を形
成するとともに、この傾斜する溝に外側電極の後
端部を溶接し、該外側電極の先端部と前記絶縁体
の先端から突き出した中心電極の先端部との間で
火花放電間隙を形成してなるスパークプラグにお
いて、 前記筒状先端部に中心軸の先端方向に向かつて
傾斜するテーパ面を形成し、該テーパ面に該テー
パ面と同等の傾斜を有する溝を形成し、前記外側
電極の後端部を、前記傾斜する溝に嵌め込んで溶
接したことを特徴とするスパークプラグ。[Claims for Utility Model Registration] A center electrode is fitted into the shaft hole of an insulator having a shaft hole, this insulator is fitted into a cylindrical metal shell so that the center electrode is coaxial, and the cylindrical tip of the metal shell A groove is formed in the section that slopes toward the tip of the central axis, and the rear end of the outer electrode is welded to this inclined groove, and the center electrode protrudes from the tip of the outer electrode and the tip of the insulator. In the spark plug, a spark discharge gap is formed between the tip of the cylindrical tip and the tip of the spark plug, wherein the cylindrical tip has a tapered surface that is inclined toward the tip of the central axis, and the tapered surface has a shape that is equivalent to the tapered surface. 1. A spark plug characterized in that a groove having an inclination is formed, and a rear end portion of the outer electrode is fitted into the inclined groove and welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11152188U JPH0232692U (en) | 1988-08-25 | 1988-08-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11152188U JPH0232692U (en) | 1988-08-25 | 1988-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0232692U true JPH0232692U (en) | 1990-02-28 |
Family
ID=31349639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11152188U Pending JPH0232692U (en) | 1988-08-25 | 1988-08-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0232692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010238377A (en) * | 2009-03-30 | 2010-10-21 | Nippon Soken Inc | Spark plug |
-
1988
- 1988-08-25 JP JP11152188U patent/JPH0232692U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010238377A (en) * | 2009-03-30 | 2010-10-21 | Nippon Soken Inc | Spark plug |