JPH0216594U - - Google Patents

Info

Publication number
JPH0216594U
JPH0216594U JP9414288U JP9414288U JPH0216594U JP H0216594 U JPH0216594 U JP H0216594U JP 9414288 U JP9414288 U JP 9414288U JP 9414288 U JP9414288 U JP 9414288U JP H0216594 U JPH0216594 U JP H0216594U
Authority
JP
Japan
Prior art keywords
insulator
cylindrical
fitted
shaft hole
metal shell
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
Application number
JP9414288U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP9414288U priority Critical patent/JPH0216594U/ja
Publication of JPH0216594U publication Critical patent/JPH0216594U/ja
Pending legal-status Critical Current

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  • Spark Plugs (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本考案にかかるスパークプラグの第1
実施例の断面図、第2図はその第2実施例の部分
断面図、第3図は従来例1の断面図、第4図は従
来例2の部分断面図である。 図中 10,10a,210,310……先端
側絶縁体、11,211……雄ネジ、30,30
a,230,330……筒状後端側絶縁体、31
,231……雌ネジ、80,80a,280,3
80……ガラス封着。
Figure 1 shows the first spark plug according to the present invention.
FIG. 2 is a partial sectional view of the second embodiment, FIG. 3 is a sectional view of Conventional Example 1, and FIG. 4 is a partial sectional view of Conventional Example 2. In the figure 10, 10a, 210, 310... Tip side insulator, 11, 211... Male thread, 30, 30
a, 230, 330... Cylindrical rear end side insulator, 31
, 231...Female thread, 80, 80a, 280, 3
80...Glass sealing.

Claims (1)

【実用新案登録請求の範囲】 筒状主体金具と、 該主体金具の先端側に嵌め込まれると共に、良
熱伝導性セラミツクス製で軸孔付の筒状先端側絶
縁体と、 該軸孔内に先後端を突出して嵌め込まれる中心
電極体と、 前記先端側絶縁体の後部に接合する、酸化物系
セラミツクス製で軸孔付の筒状後端側絶縁体と、 該筒状後端側絶縁体の貫通孔の先端側に充填さ
れる導電性ガラスシールと、 先端が導電性ガラスシールに連続し、後端を後
端側絶縁体から突出させて軸孔に嵌め込まれた端
子軸とからなるスパークプラグにおいて、 前記良熱伝導性セラミツクス製の先端側絶縁体
の後部に雄ネジ、前記後端側絶縁体の前部に雌ネ
ジを設け、両者を螺合し、接合面をシール材で封
着することを特徴とするスパークプラグ。
[Scope of Claim for Utility Model Registration] A cylindrical metal shell, a cylindrical front insulator made of highly thermally conductive ceramics and fitted into the front end of the metal shell and having a shaft hole, and a cylindrical front insulator fitted into the front end of the metal shell; a center electrode body that is fitted with its end protruding; a cylindrical rear insulator made of oxide ceramics with a shaft hole and joined to the rear of the front insulator; and a cylindrical rear insulator with a shaft hole. A spark plug consisting of a conductive glass seal filled at the tip of a through hole, and a terminal shaft whose tip is continuous with the conductive glass seal and whose rear end protrudes from the rear insulator and is fitted into the shaft hole. In this step, a male screw is provided at the rear of the tip end insulator made of good thermal conductivity ceramics, and a female screw is provided at the front of the rear end insulator, the two are screwed together, and the joint surfaces are sealed with a sealing material. A spark plug characterized by:
JP9414288U 1988-07-15 1988-07-15 Pending JPH0216594U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9414288U JPH0216594U (en) 1988-07-15 1988-07-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9414288U JPH0216594U (en) 1988-07-15 1988-07-15

Publications (1)

Publication Number Publication Date
JPH0216594U true JPH0216594U (en) 1990-02-02

Family

ID=31318641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9414288U Pending JPH0216594U (en) 1988-07-15 1988-07-15

Country Status (1)

Country Link
JP (1) JPH0216594U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015099765A (en) * 2013-10-16 2015-05-28 株式会社デンソー Spark plug for internal combustion engine
JP2015185286A (en) * 2014-03-22 2015-10-22 日本特殊陶業株式会社 spark plug

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015099765A (en) * 2013-10-16 2015-05-28 株式会社デンソー Spark plug for internal combustion engine
JP2015185286A (en) * 2014-03-22 2015-10-22 日本特殊陶業株式会社 spark plug

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