JPH0127581Y2 - - Google Patents
Info
- Publication number
- JPH0127581Y2 JPH0127581Y2 JP1984144992U JP14499284U JPH0127581Y2 JP H0127581 Y2 JPH0127581 Y2 JP H0127581Y2 JP 1984144992 U JP1984144992 U JP 1984144992U JP 14499284 U JP14499284 U JP 14499284U JP H0127581 Y2 JPH0127581 Y2 JP H0127581Y2
- Authority
- JP
- Japan
- Prior art keywords
- plug
- hole
- head cover
- seal lip
- cap
- 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.)
- Expired
Links
Landscapes
- Spark Plugs (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は主として車両用のエンジンに適用され
るプラグキヤツプ装置に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a plug cap device mainly applied to a vehicle engine.
（従来の技術）
従来この種装置として、下端にブツシユと、上
端に膨大するゴムその他のヘツドカバとを有する
プラグキヤツプパイプから成るプラグキヤツプ
を、エンジン本体に形成される上下方向に長手の
プラグ孔内にその上側から抜差自在に挿入すると
共に、該ヘツドカバをその下面に突出する環状の
シールリツプにおいて該プラグ孔の上端の開口内
に嵌合してこれを気密に閉じるようにした式のも
のは考えられているが、この場合該ヘツドカバは
該プラグ孔内を外気に連通する換気孔を備えるべ
きもので、該換気孔を例えば該シールリツプの一
部に凹溝状に形成する場合、該換気孔は該シール
リツプの嵌合時のしめしろによりその断面積を減
少し勝ちであり、かくて十分な換気機能を得られ
ず、更に該孔は該リツプに損傷を生じ易い等の不
都合を伴う。(Prior Art) Conventionally, this type of device has a plug cap consisting of a plug cap pipe having a bush at the lower end and a large rubber or other head cover at the upper end, and is inserted into a vertically long plug hole formed in the engine body. There is a type in which the head cover is inserted into and removed from the top of the plug hole, and an annular seal lip protruding from the bottom surface of the head cover is fitted into the opening at the upper end of the plug hole to airtightly close it. However, in this case, the head cover should be provided with a ventilation hole that communicates the inside of the plug hole with the outside air.If the ventilation hole is formed in the shape of a groove in a part of the seal lip, for example, the ventilation hole should be The interference when the sealing lip is fitted tends to reduce its cross-sectional area, thus making it impossible to obtain a sufficient ventilation function, and furthermore, the hole is likely to cause damage to the lip.
（考案が解決しようとする問題点）
本考案はかゝる不都合のない装置、即ちシール
リツプのしめしろによるも換気孔に断面積の減少
がないと共に該シールリツプに該孔による損傷を
生じないようにした装置を得ることをその目的と
する。(Problems to be Solved by the Invention) The present invention is a device that does not have such disadvantages, that is, the cross-sectional area of the ventilation hole does not decrease due to the tightening of the seal lip, and the seal lip is not damaged by the hole. The purpose is to obtain a device that
（問題点を解決するための手段）
本考案はかゝる観点に基きなされたもので、下
端にブツシユと、上端に膨大するゴムその他の弾
性材料のヘツドカバとを有するプラグキヤツプパ
イプから成るプラグキヤツプを、エンジン本体に
形成される上下方向に長手のプラグ孔内にその上
側から抜差自在に挿入させると共に、該ヘツドカ
バをその下面に突出する環状のシールリツプにお
いて該プラグ孔の上端の開口内に嵌合させてこれ
を気密に閉じるようにした式のものにおいて、該
ヘツドカバに上方に突出する円胴状の突部と、そ
の内部に上下方向にのびる換気用の小孔とを形成
させると共に、該小孔を下方に延長して該シール
リツプの内周の空間内の上部に開口させて成る。(Means for Solving the Problems) The present invention has been made based on such a viewpoint, and is a plug cap consisting of a plug cap pipe having a bush at the lower end and a large head cover made of rubber or other elastic material at the upper end. is inserted into and removed from the upper side of the vertically elongated plug hole formed in the engine body, and the head cover is fitted into the opening at the upper end of the plug hole with an annular seal lip protruding from the lower surface of the head cover. In the head cover, the head cover is formed with a cylindrical projection projecting upward and a small ventilation hole extending vertically inside the head cover. The small hole extends downward and opens at the upper part of the space around the inner periphery of the seal lip.
（実施例） 本考案実施の１例を別紙図面に付説明する。(Example) An example of implementing the present invention will be explained with reference to attached drawings.
図面で１はプラグキヤツプを示し、該キヤツプ
１はプラグキヤツプパイプ２に下端のブツシユ３
と、上端の膨大するゴムその他の弾性材料のヘツ
ドカバ４を、該カバ４内を介して外部にのびるプ
ラグコード５とを備える型式とし、該キヤツプ１
をエンジン本体６内に形成される上下方向に長手
のプラグ孔７内にその上側から抜差自在に挿入し
て該ブツシユ３において該プラグ孔７内の底部の
プラグ本体８に嵌合させると共に、該ヘツドカバ
４の下面に突出する環状のシールリツプ９におい
て該孔７の上端の開口１０内に嵌合させて該開口
１０を気密に閉じるようにした。尚該ヘツドカバ
４はその下面中心のボス１１において該パイプ２
に嵌合して結着されると共に該シールリツプ９の
内周には該ボス１１の外周面との間に環状の隙
間、即ち空間１２が存するようにした。 In the drawing, 1 indicates a plug cap, and the cap 1 is connected to a plug cap pipe 2 with a bush 3 at the lower end.
The head cover 4 is made of rubber or other elastic material and has an enlarged upper end, and a plug cord 5 extends to the outside through the inside of the cover 4.
is inserted into a vertically elongated plug hole 7 formed in the engine main body 6 from above so as to be freely inserted and removed, and is fitted into the plug main body 8 at the bottom of the plug hole 7 in the bush 3, An annular seal lip 9 protruding from the lower surface of the head cover 4 is fitted into an opening 10 at the upper end of the hole 7 to airtightly close the opening 10. The head cover 4 is connected to the pipe 2 at the boss 11 at the center of its lower surface.
The inner periphery of the seal lip 9 and the outer periphery of the boss 11 are provided with an annular gap, that is, a space 12.
本考案によれば、該ヘツドカバ４に該プラグ孔
７内を外気に連通する換気用の例えば直径１mm程
度の小孔１３を次のように形成するようにした。
即ち該ヘツドカバ４に上方に突出する円胴状の突
部１４と、その内部に上下方向にのびる該小孔１
３とを形成させると共に、該小孔１３は下方にの
びて前記した空間１２、即ち該シールリツプ９の
内周の空間１２内の上部に開口するようにした。 According to the present invention, a small hole 13 having a diameter of about 1 mm, for example, for communicating the inside of the plug hole 7 with the outside air is formed in the head cover 4 as follows.
That is, the head cover 4 has a cylindrical projection 14 projecting upward, and the small hole 1 extending vertically inside the cylindrical projection 14.
3 is formed, and the small hole 13 extends downward and opens into the above-mentioned space 12, that is, the upper part of the space 12 on the inner periphery of the seal lip 9.
（作用）
かくて、該プラグキヤツプ１を該プラグ孔７内
に挿入した場合、該換気用の小孔１３の状態は例
えば第４図に明示の通りであり、該小孔１３は該
シールリツプ９のしめしろによるも断面積が減少
するようなことがないと共に、該リツプ９に損傷
を与えるようなことがなく、更に該小孔１３は上
方にのびる該突部１４の上面に開口するため、該
カバ９の表面に沿つてその上側から導かれる水分
がこれに流入するようなことがなく、更に水汲状
態においても該突部１４が水面上に存する限りに
おいて水分の流入がない。(Function) Thus, when the plug cap 1 is inserted into the plug hole 7, the condition of the small ventilation hole 13 is as shown in FIG. The cross-sectional area will not be reduced due to the interference, and the lip 9 will not be damaged, and the small hole 13 opens on the upper surface of the protrusion 14 extending upward. Moisture guided from above along the surface of the cover 9 does not flow into it, and furthermore, even in the state of drawing water, as long as the protrusion 14 remains above the water surface, no moisture flows into it.
（効果）
このように本考案によるときは、換気用の小孔
をヘツドカバの上面の円胴状の突部内に形成して
その下端を該カバの下面のシールリツプの内側の
空間内の上部に開口させるもので、該小孔を例え
ば該リツプの側面に沿つた凹溝状に作る場合にお
ける前記した不都合がないと共に該カバの表面に
沿つて導かれる水分の流入を無くして防水性を良
好にする等の効果を有する。(Effect) According to the present invention, a small hole for ventilation is formed in the cylindrical projection on the upper surface of the head cover, and its lower end is opened at the upper part of the space inside the seal lip on the lower surface of the cover. This eliminates the above-mentioned disadvantages when the small hole is formed in the form of a groove along the side surface of the lip, and also eliminates the inflow of moisture guided along the surface of the cover, thereby improving waterproofness. It has the following effects.
第１図は本案装置を備えたエンジンの１例の一
部を截除した正面図、第２図はそのプラグキヤツ
プの取出状態の一部を截除した側面図、第３図は
その上面図、第４図はその−線截断の拡大断
面図である。
１…プラグキヤツプ、２…プラグキヤツプパイ
プ、３…ブツシユ、４…ヘツドカバ、６…エンジ
ン本体、７…プラグ孔、９…シールリツプ、１０
…開口、１２…内側空間、１３…小孔、１４…突
部。
Fig. 1 is a partially cutaway front view of an example of an engine equipped with the device of the present invention, Fig. 2 is a partially cutaway side view of the engine with the plug cap removed, and Fig. 3 is a top view thereof. , and FIG. 4 is an enlarged cross-sectional view taken along the - line. 1... Plug cap, 2... Plug cap pipe, 3... Bush, 4... Head cover, 6... Engine body, 7... Plug hole, 9... Seal lip, 10
...Opening, 12...Inner space, 13...Small hole, 14...Protrusion.
Claims (1)
の弾性材料のヘツドカバとを有するプラグキヤツ
プパイプから成るプラグキヤツプを、エンジン本
体に形成される上下方向に長手のプラグ孔内にそ
の上側から抜差自在に挿入させると共に、該ヘツ
ドカバをその下面に突出する環状のシールリツプ
において該プラグ孔の上端の開口内に嵌合させて
これを気密に閉じるようにした式のものにおい
て、該ヘツドカバに上方に突出する円胴状の突部
と、その内部に上下方向にのびる換気用の小孔と
を形成させると共に、該小孔を下方に延長して該
シールリツプの内周の空間内の上部に開口させて
成るプラグキヤツプ装置。 A plug cap consisting of a plug cap pipe having a bush at the lower end and a large head cover made of rubber or other elastic material at the upper end can be freely inserted and removed from above into a vertically elongated plug hole formed in an engine body. The head cover has an annular seal lip protruding from its lower surface that is fitted into the opening at the upper end of the plug hole to airtightly close the plug hole. A plug comprising a body-shaped protrusion and a small ventilating hole extending vertically inside the protrusion, and the small hole extending downward to open at the upper part of the inner circumferential space of the seal lip. Cap device.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984144992U JPH0127581Y2 (en) | 1984-09-27 | 1984-09-27 | |
| CA000491653A CA1281953C (en) | 1984-09-27 | 1985-09-26 | Plug cap apparatus |
| DE19853534537 DE3534537A1 (en) | 1984-09-27 | 1985-09-27 | SPARK PLUG CAP FOR AN INTERNAL COMBUSTION ENGINE WITH ARC IGNITION |
| US06/781,247 US4637358A (en) | 1984-09-27 | 1985-09-27 | Spark plug cap apparatus |
| GB08523918A GB2165000B (en) | 1984-09-27 | 1985-09-27 | Spark plug cap in spark ignition engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984144992U JPH0127581Y2 (en) | 1984-09-27 | 1984-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6161779U JPS6161779U (en) | 1986-04-25 |
| JPH0127581Y2 true JPH0127581Y2 (en) | 1989-08-18 |
Family
ID=30703251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984144992U Expired JPH0127581Y2 (en) | 1984-09-27 | 1984-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0127581Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906202A (en) * | 1989-03-13 | 1990-03-06 | General Motors Corporation | Deep well ignition cable terminal assembly |
| KR20130095628A (en) * | 2010-06-29 | 2013-08-28 | 볼보 컨스트럭션 이큅먼트 에이비 | Waterproof grommet for a cab roof of construction machinery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931794B2 (en) * | 1976-03-08 | 1984-08-04 | 株式会社東芝 | Pick-up arm return position detection device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6026472Y2 (en) * | 1980-11-14 | 1985-08-09 | トヨタ自動車株式会社 | plug cap |
| JPS5931794U (en) * | 1982-08-24 | 1984-02-28 | 日本特殊陶業株式会社 | High voltage cord spark plug connection terminal |
-
1984
- 1984-09-27 JP JP1984144992U patent/JPH0127581Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931794B2 (en) * | 1976-03-08 | 1984-08-04 | 株式会社東芝 | Pick-up arm return position detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6161779U (en) | 1986-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS60159931U (en) | humidifier | |
| JPH0127581Y2 (en) | ||
| JPH0166458U (en) | ||
| JPS628337Y2 (en) | ||
| JPS6137185Y2 (en) | ||
| JPS6161778U (en) | ||
| JPS594208Y2 (en) | rapid air valve | |
| JPS608825Y2 (en) | portable magic bottle | |
| JPS635807Y2 (en) | ||
| JPH0313010Y2 (en) | ||
| JPH02105846U (en) | ||
| JPH0354058Y2 (en) | ||
| JPS60195358U (en) | Vent cap for drain vent pipe | |
| JPS6110699U (en) | plant cell culture vessels | |
| JPS596593Y2 (en) | Waterproof cap for pressure switch | |
| JPH0139091Y2 (en) | ||
| JPH0444437U (en) | ||
| JPS62170865U (en) | ||
| JPS62194121U (en) | ||
| JPH0214455U (en) | ||
| JPH0240985U (en) | ||
| JPS59142579U (en) | ventilation system | |
| JPS602927U (en) | Electric air pot inner lid mounting structure | |
| JPS60107233U (en) | Vent cap for drain vent pipe | |
| JPS602420U (en) | Electric air pot inner lid mounting structure |