JPS642384U - - Google Patents
Info
- Publication number
- JPS642384U JPS642384U JP9761287U JP9761287U JPS642384U JP S642384 U JPS642384 U JP S642384U JP 9761287 U JP9761287 U JP 9761287U JP 9761287 U JP9761287 U JP 9761287U JP S642384 U JPS642384 U JP S642384U
- Authority
- JP
- Japan
- Prior art keywords
- core
- spark plug
- sleeve portion
- filling body
- combustion engine
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 4
- 238000002788 crimping Methods 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
Landscapes
- Spark Plugs (AREA)
Description
第１図は本考案の内燃機関の点火プラグの一実
施例に用いられた加締め後の自動車用内燃機関の
粉末充填式点火プラグを示す半断面図、第２図は
環状充填体を示す斜視図、第３図は本考案の内燃
機関の点火プラグの一実施例に用いられた加締め
前の自動車用内燃機関の粉末充填式点火プラグを
示す半断面図である。
図中、１……自動車用内燃機関の粉末充填式点
火プラグ、２……筒状取付金具、３……棒状絶縁
体、４……環状充填体、５……芯体、６……保護
層、７……中心電極、２１……外側電極、２４…
…スリーブ部。
FIG. 1 is a half-sectional view showing a powder-filled spark plug for an automobile internal combustion engine after crimping, which is used in an embodiment of the spark plug for an internal combustion engine of the present invention, and FIG. 2 is a perspective view showing an annular filling body. 3 are half-sectional views showing a powder-filled spark plug for an automobile internal combustion engine before crimping, which is used as an embodiment of the spark plug for an internal combustion engine of the present invention. In the figure, 1... Powder-filled spark plug for automobile internal combustion engine, 2... Cylindrical mounting bracket, 3... Rod-shaped insulator, 4... Annular filling body, 5... Core body, 6... Protective layer. , 7... center electrode, 21... outer electrode, 24...
...Sleeve section.
Claims (1)
状取付金具内に、軸心に中心電極が貫設されてい
る絶縁体を配し、前記スリーブ部と前記絶縁体と
の間に環状充填体を嵌込み、該環状充填体を介し
て前記スリーブ部を内側に加締めて前記取付金具
内に固着する点火プラグにおいて、 前記環状充填体は、粉状の芯体と、該芯体の表
面を被覆し、前記芯体の型を保つための保護層と
からなることを特徴とする内燃機関の点火プラグ
。 (2) 前記粉状の芯体は、粉状の滑石などの環状
弾性体であることを特徴とする実用新案登録請求
の範囲第１項に記載の内燃機関の点火プラグ。[Claims for Utility Model Registration] (1) An insulator having a central electrode penetrated through its axis is disposed within a cylindrical mounting bracket having a crimping sleeve portion formed at one end, and the sleeve portion and In a spark plug in which an annular filling body is fitted between the insulator and the sleeve portion is crimped inwardly through the annular filling body to be fixed in the mounting bracket, the annular filling body is made of powder. A spark plug for an internal combustion engine, comprising a core and a protective layer that covers the surface of the core to maintain the shape of the core. (2) The spark plug for an internal combustion engine according to claim 1, wherein the powdery core is an annular elastic body such as powdery talc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9761287U JPS642384U (en) | 1987-06-25 | 1987-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9761287U JPS642384U (en) | 1987-06-25 | 1987-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS642384U true JPS642384U (en) | 1989-01-09 |
Family
ID=30964743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9761287U Pending JPS642384U (en) | 1987-06-25 | 1987-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS642384U (en) |
-
1987
- 1987-06-25 JP JP9761287U patent/JPS642384U/ja active Pending