JPH0216020Y2 - - Google Patents

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Publication number
JPH0216020Y2
JPH0216020Y2 JP1984146340U JP14634084U JPH0216020Y2 JP H0216020 Y2 JPH0216020 Y2 JP H0216020Y2 JP 1984146340 U JP1984146340 U JP 1984146340U JP 14634084 U JP14634084 U JP 14634084U JP H0216020 Y2 JPH0216020 Y2 JP H0216020Y2
Authority
JP
Japan
Prior art keywords
cylinder
head
water
water jacket
cylinder head
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
Application number
JP1984146340U
Other languages
Japanese (ja)
Other versions
JPS6159830U (en
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 JP1984146340U priority Critical patent/JPH0216020Y2/ja
Publication of JPS6159830U publication Critical patent/JPS6159830U/ja
Application granted granted Critical
Publication of JPH0216020Y2 publication Critical patent/JPH0216020Y2/ja
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 A 考案の目的 (1) 産業上の利用分野 本考案は水冷式多気筒内燃機関におけるシリン
ダヘツドの冷却装置に関するものである。
[Detailed Description of the Invention] A. Purpose of the Invention (1) Field of Industrial Application The present invention relates to a cooling device for a cylinder head in a water-cooled multi-cylinder internal combustion engine.

(2) 従来の技術 従来水冷式多気筒内燃機関においては、シリン
ダブロツクとその上にガスケツトを介して重合結
着されるシリンダヘツドとにそれぞれブロツク側
水ジヤケツトとヘツド側水ジヤケツトを形成し、
それらの水ジヤケツトをガスケツト孔およびシリ
ンダヘツドに形成した複数の通水路を介して互い
に連通させ、ラジエタからの冷たい冷却水をブロ
ツク側水ジヤケツトより前記複数の通水路を通し
てヘツド側水ジヤケツトへと流動させて機関本体
を水冷却するようにしている。
(2) Prior Art In a conventional water-cooled multi-cylinder internal combustion engine, a block side water jacket and a head side water jacket are respectively formed on a cylinder block and a cylinder head which is polymerized and bonded thereon via a gasket.
These water jackets are communicated with each other through a plurality of passages formed in the gasket hole and the cylinder head, and cold cooling water from the radiator is caused to flow from the block side water jacket through the plurality of passages to the head side water jacket. The main body of the engine is cooled by water.

(3) 考案が解決しようとする問題点 ところが、特に隣接するシリンダボア間に水ジ
ヤケツトをもたないサイアミーズ型シリンダブロ
ツクをもつ機関では、シリンダヘツドの隣接する
燃焼室間の境界壁には、その構造上複数の通水路
間の間隔が拡がり、そのため冷却水による冷却効
果が十分でなく前記境界壁の中央下部に熱がこも
り最も高温に加熱される傾向にあつて機関の性
能、耐久性等に影響を及ぼすことがあるという問
題がある。
(3) Problems to be solved by the invention However, especially in engines with Siamese-type cylinder blocks that do not have water jackets between adjacent cylinder bores, the boundary wall between adjacent combustion chambers in the cylinder head is The distance between the multiple water passages has widened, and as a result, the cooling effect of the cooling water is not sufficient, and heat tends to be trapped in the lower center of the boundary wall and heated to the highest temperature, which affects engine performance, durability, etc. The problem is that it can cause

本考案はかかる問題点を解決した、構成簡単な
水冷式多気筒内燃機関におけるシリンダヘツドの
冷却装置を提供することを目的とするものであ
る。
The object of the present invention is to provide a cylinder head cooling device for a water-cooled multi-cylinder internal combustion engine that is simple in structure and solves these problems.

B 考案の構成 (1) 問題点を解決するための手段 上記目的を達成するために本考案は、互いに隣
接するシリンダボア相互間に水ジヤケツトを有し
ないサイアミーズ型シリンダブロツクの上面にガ
スケツトを介してシリンダヘツドを重合結着し、
前記シリンダブロツクにブロツク側水ジヤケツト
を、また前記シリンダヘツドにヘツド側水ジヤケ
ツトをそれぞれ形成し、その両水ジヤケツト間を
ガスケツト孔及びシリンダヘツドに形成した複数
の通水路を介して連通させてなる、水冷式多気筒
内燃機関におけるシリンダヘツドの冷却装置であ
つて、前記複数の通水路のうち、前記シリンダヘ
ツドの互いに隣接する燃焼室相互間の境界壁に穿
設される一対の通水路が、これらを該境界壁の中
央下部に近接させるべく、クランク軸線に対して
略対称に、且つ前記ヘツド側水ジヤケツトに向か
うにつれて互いに接近するように傾斜させて形成
されることを特徴とする。
B. Structure of the invention (1) Means for solving the problem In order to achieve the above object, the present invention provides a system in which cylinders are connected via gaskets to the upper surface of a Siamese-type cylinder block that does not have a water jacket between adjacent cylinder bores. The head is polymerized and bonded.
A block-side water jacket is formed in the cylinder block, and a head-side water jacket is formed in the cylinder head, and the two water jackets are communicated through a gasket hole and a plurality of water passages formed in the cylinder head. In the cooling device for a cylinder head in a water-cooled multi-cylinder internal combustion engine, among the plurality of water passages, a pair of water passages are formed in a boundary wall between adjacent combustion chambers of the cylinder head. are formed approximately symmetrically with respect to the crank axis so as to be close to the central lower part of the boundary wall, and are inclined so as to approach each other toward the head side water jacket.

(2) 作用 上記構成によれば、両傾斜通水路を、その相互
間隔を可及的に短縮させながら、互いに隣接する
燃焼室間の境界壁の中央下部の高温加熱ゾーンに
可及的に近接させることができるから、その両傾
斜通水路を流れる冷却水によつて、サイアミーズ
型シリンダブロツク上のシリンダヘツドに特有の
該高温加熱ゾーンが効率よく冷却される。
(2) Effect According to the above configuration, both inclined water passages are brought as close as possible to the high-temperature heating zone at the lower center of the boundary wall between adjacent combustion chambers while shortening the mutual distance between them as much as possible. Therefore, the high temperature heating zone peculiar to the cylinder head on the Siamese type cylinder block is efficiently cooled by the cooling water flowing through the both inclined water passages.

(3) 実施例 以下、図面により本考案の一実施例について説
明する。
(3) Embodiment An embodiment of the present invention will be described below with reference to the drawings.

サイアミーズ型シリンダブロツクBには、ガス
ケツト3を介してシリンダヘツドHが重合結着さ
れて機関本体Eが構成される。シリンダブロツク
Bには、クランク軸方向に沿つて複数のシリンダ
ボア1…が直列配設され、またシリンダヘツドH
には、前記シリンダボア1…に対応して複数の燃
焼室2が形成される。各燃焼室2には、シリンダ
ヘツドHに形成される吸気ポート4および排気ポ
ート5が連通され、前記吸気および排気ポート
4,5は通常のようにシリンダヘツドHに摺動可
能に支持される吸,排気弁6,7によつて開閉さ
れる。
A cylinder head H is polymerized and bonded to the Siamese type cylinder block B via a gasket 3 to form an engine body E. The cylinder block B has a plurality of cylinder bores 1 arranged in series along the crankshaft direction, and a cylinder head H.
A plurality of combustion chambers 2 are formed corresponding to the cylinder bores 1. Each combustion chamber 2 communicates with an intake port 4 and an exhaust port 5 formed in the cylinder head H, and the intake and exhaust ports 4 and 5 are connected to an intake port slidably supported on the cylinder head H as usual. , and are opened and closed by exhaust valves 6 and 7.

シリンダヘツドHの上部には、吸気弁6と排気
弁7とをそれぞれ個別に開閉作動する2本の動弁
カム軸8,9およびエンドピボツト型ロツカアー
ム10,11を備えたDOHC型動弁機構が設け
られる。
At the top of the cylinder head H, there is provided a DOHC type valve mechanism equipped with two valve drive camshafts 8, 9 and end pivot type rocker arms 10, 11 that open and close the intake valve 6 and the exhaust valve 7, respectively. It will be done.

シリンダヘツドH上には、その長手方向、すな
わちクランク軸方向に沿つて吸,排気側の2本の
前記動弁カム軸8,9が互いに平行に配設され、
それらの動弁カム軸8,9は、シリンダヘツドH
上に設けられる軸受部12,13によつてそれぞ
れ回転自在に支承される。
The two valve drive camshafts 8 and 9 on the intake and exhaust sides are arranged parallel to each other on the cylinder head H in its longitudinal direction, that is, along the crankshaft direction,
Those valve drive camshafts 8, 9 are connected to the cylinder head H.
They are rotatably supported by bearings 12 and 13 provided above, respectively.

前記2本の動弁カム軸8,9間において、複数
の燃焼室2の上方にはその長手方向に沿つて中央
ブロツク14が上方に向けて一体に立設され、こ
の中央ブロツク14の両側には、前記2つの吸気
弁6に対応する2つの吸気側ロツカアーム取付部
18および2つの排気弁7に対応する2つの排気
弁側ロツカアーム11の取付部19が横方向に膨
出形成される。前記ロツカアーム取付部18およ
び19の両側には、それぞれねじ孔20および2
1が穿設され、それらのねじ孔20および21に
は、ロツカアーム支持ねじ22および23が螺着
される。吸気側ロツカアーム支持ねじ22の上面
には、半球状の揺動支承部22aが形成され、そ
の揺動支承部22a上には、エンドピボツト型ロ
ツカアーム10の基端に螺着した調節ねじ24下
端の球面凸部24aが回転自在に支持される。各
吸気側ロツカアーム10の先端は吸気弁6のステ
ム部上端に当接される。同じように排気側ロツカ
アーム支持ねじ23の上面には、半球状揺動支承
部23aが形成され、この支承部23a上にはエ
ンドピボツト型ロツカアーム11の基端に螺着し
た調節ねじ25下端の球面凸部25aがそれぞれ
回動自在に支持される。排気側ロツカアーム11
の先端は排気弁7のステム部上端に当接される。
前記吸,排気側の複数個のロツカアーム10,1
1の上面には、それぞれスリツパ面10a,11
aが形成され、それらのスリツパ面10a,11
a上には、それぞれ吸,排気側の2本の動弁カム
軸8,9上の動弁カム8a,9aが当接される。
Between the two valve drive camshafts 8 and 9, a central block 14 is integrally provided above the plurality of combustion chambers 2 along the longitudinal direction thereof, and a central block 14 is provided on both sides of the central block 14. The two intake side rocker arm mounting portions 18 corresponding to the two intake valves 6 and the two exhaust valve side rocker arm mounting portions 19 of the two exhaust valve side rocker arms 11 corresponding to the two exhaust valves 7 are formed to bulge in the lateral direction. Screw holes 20 and 2 are provided on both sides of the rocker arm mounting portions 18 and 19, respectively.
1 are bored, and rocker arm support screws 22 and 23 are screwed into these screw holes 20 and 21. A hemispherical swing support portion 22a is formed on the upper surface of the intake side rocker arm support screw 22, and a spherical surface at the lower end of the adjustment screw 24 screwed onto the base end of the end pivot type rocker arm 10 is formed on the swing support portion 22a. The convex portion 24a is rotatably supported. The tip of each intake-side rocker arm 10 is brought into contact with the upper end of the stem portion of the intake valve 6. Similarly, a hemispherical swing support portion 23a is formed on the upper surface of the exhaust side rocker arm support screw 23, and a spherical convex portion at the lower end of the adjustment screw 25 screwed onto the base end of the end pivot type rocker arm 11 is formed on the support portion 23a. The portions 25a are each rotatably supported. Exhaust side rocker arm 11
The tip of the exhaust valve 7 is brought into contact with the upper end of the stem portion of the exhaust valve 7.
The plural rocker arms 10 and 1 on the intake and exhaust sides
1 have slipper surfaces 10a and 11, respectively.
a is formed, and their slipper surfaces 10a, 11
Valve drive cams 8a and 9a on two valve drive camshafts 8 and 9 on the intake and exhaust sides, respectively, are brought into contact with the upper part a.

シリンダヘツドHに形成される吸,排気側ばね
座面26,27と、吸,排気弁6,7のステムの
上端に係止されるばね座28,29間には、それ
ぞれ弁ばね30,31が介装され、これらの弁ば
ね30,31はそれぞれ吸,排気弁6,7を閉弁
方向に付勢する。
Valve springs 30 and 31 are provided between the spring seats 26 and 27 formed on the cylinder head H and the spring seats 28 and 29 that are secured to the upper ends of the stems of the intake and exhaust valves 6 and 7, respectively. are interposed, and these valve springs 30 and 31 bias the intake and exhaust valves 6 and 7, respectively, in the valve closing direction.

第3図に示すように各燃焼室2の中央部には点
火プラグ15が設けられる。
As shown in FIG. 3, a spark plug 15 is provided in the center of each combustion chamber 2.

サイアミーズ型シリンダブロツクBには、各シ
リンダボア1を囲むようにブラツク側水ジヤケツ
ト32が形成され、この水ジヤケツト32はシリ
ンダブロツクBの上面に直接開口される。所謂オ
ープンデツキに形成される。またシリンダヘツド
Hには各燃焼室2を囲むようにヘツド側水ジヤケ
ツト33が形成される。前記ブロツク側水ジヤケ
ツト32とヘツド側水ジヤケツト33とは、ガス
ケツト孔34およびシリンダヘツドHに穿設され
る複数の通水路35…を介して互いに連通されて
おり、それらのうち第2,3図に示すようにシリ
ンダブロツクBの隣接するシリンダボア1,1間
の上方において、シリンダヘツドHの隣接する燃
焼室2,2間の境界壁36に形成されるものは、
クランク軸線L−Lに関して略対称であつて、ヘ
ツド側水ジヤケツト33に向つて互いに接近する
ように傾斜する傾斜通水路35a,35aに形成
される。
A black side water jacket 32 is formed in the Siamese type cylinder block B so as to surround each cylinder bore 1, and this water jacket 32 is opened directly on the upper surface of the cylinder block B. It is formed into a so-called open deck. Further, a head side water jacket 33 is formed in the cylinder head H so as to surround each combustion chamber 2. The block side water jacket 32 and the head side water jacket 33 are in communication with each other via a gasket hole 34 and a plurality of water passages 35 bored in the cylinder head H. As shown in FIG. 2, a boundary wall 36 between adjacent combustion chambers 2, 2 of the cylinder head H is formed above between the adjacent cylinder bores 1, 1 of the cylinder block B.
They are formed into inclined water passages 35a, 35a that are substantially symmetrical with respect to the crank axis LL and that are inclined toward the head side water jacket 33 so as to approach each other.

而して前記一対の傾斜通水路35a,35aは
サイアミーズ型シリンダブロツクBの、隣接する
シリンダボア1,1間から離れているブロツク側
水ジヤケツト32に連通させるため、前記一対の
傾斜通水路35a,35a間の間隔lには自から
限界があるが、その間隔lは可能な限り短縮でき
るように設定される。
The pair of inclined water passages 35a, 35a are connected to the block side water jacket 32 of the Siamese type cylinder block B, which is separated from the adjacent cylinder bores 1, 1. Although there is a limit to the interval l between them, the interval l is set so as to be as short as possible.

しかも前記一対の傾斜通水路35a,35a
は、クランク軸線L−Lに関して略対称で、かつ
ヘツド側水ジヤケツト33に向つて互いに接近す
る方向に傾斜されていることにより、前記一対の
傾斜通水路35a,35aを流れる冷却水は、そ
れらに挟まれる境界壁36の中央下部の高温加熱
ゾーンZを有効に冷却することができる。
Moreover, the pair of inclined water passages 35a, 35a
are substantially symmetrical with respect to the crank axis LL, and are inclined in a direction toward each other toward the head side water jacket 33, so that the cooling water flowing through the pair of inclined water passages 35a, 35a flows into them. The high temperature heating zone Z at the lower center of the sandwiched boundary wall 36 can be effectively cooled.

図中37は潤滑油の流れるオイルギヤラリであ
る。
In the figure, numeral 37 is an oil gear through which lubricating oil flows.

次に本考案の実施例の作用について説明する。 Next, the operation of the embodiment of the present invention will be explained.

機関の運転により吸気および排気動弁カム軸
8,9が回転されれば、それらの軸8,9上の動
弁カム8a,9aと弁ばね30,31との協働に
より吸気および排気側ロツカアーム10,11は
それぞれ揺動支承部22a,23a回りに上下に
揺動し、吸,排気弁6,7を所定のタイミングを
以て開閉作動する。
When the intake and exhaust valve camshafts 8 and 9 are rotated by engine operation, the valve cams 8a and 9a on these shafts 8 and 9 cooperate with the valve springs 30 and 31 to rotate the intake and exhaust side rocker arms. 10 and 11 swing up and down around swing bearings 22a and 23a, respectively, and open and close the intake and exhaust valves 6 and 7 at predetermined timings.

また機関の運転により冷却水回路のラジエタ
(図示せず)からの冷却水はブロツク側水ジヤケ
ツト32から複数の通水路35…を通つてヘツド
側水ジヤケツト33へと流れ、シリンダブロツク
Bのシリンダボア1周囲、およびシリンダヘツド
Hの燃焼室2周囲等の加熱部を冷却する。特にこ
のうちの前記一対の傾斜通水路35a,35a
は、クランク軸線L−Lに関して略対称をなして
ヘツド側水ジヤケツト33に向つて互いに接近す
るように傾斜しているので、該傾斜通水路35
a,35aを流れる冷却水は、相隣れる燃焼室
2,2間の境界壁36の中央下部の高温加熱ゾー
ンZを有効に冷却することができる。
Also, when the engine is operated, cooling water from a radiator (not shown) in the cooling water circuit flows from the block side water jacket 32 through a plurality of water passages 35 to the head side water jacket 33, and flows into the cylinder bore 1 of the cylinder block B. It cools the surroundings and heated parts such as the surroundings of the combustion chamber 2 of the cylinder head H. In particular, the pair of inclined water passages 35a, 35a
are substantially symmetrical with respect to the crank axis LL, and are inclined toward each other toward the head side water jacket 33, so that the inclined water passages 35
The cooling water flowing through a, 35a can effectively cool the high temperature heating zone Z at the lower center of the boundary wall 36 between the adjacent combustion chambers 2, 2.

C 考案の効果 以上のように本考案によれば、互いに隣接する
シリンダボア相互間に水ジヤケツトを有しないサ
イアミーズ型シリンダブロツクの上面にガスケツ
トを介してシリンダヘツドを重合結着し、前記シ
リンダブロツクにブロツク側水ジヤケツトを、ま
た前記シリンダヘツドにヘツド側水ジヤケツトを
それぞれ形成し、その両水ジヤケツト間をガスケ
ツト孔及びシリンダヘツドに形成した複数の通水
路を介して連通させてなる、水冷式多気筒内燃機
関におけるシリンダヘツドの冷却装置において、
前記複数の通水路のうち、前記シリンダヘツドの
互いに隣接する燃焼室相互間の境界壁に穿設され
る一対の通水路は、これらを該境界壁の中央下部
に近接させるべく、クランク軸線に対して略対称
に、且つ前記ヘツド側水ジヤケツトに向かうにつ
れて互いに接近するように傾斜させて形成される
ので、その両傾斜通水路を、その相互間隔を可及
的に短縮させながら、互いに隣接する燃焼室間の
境界壁の中央下部の高温加熱ゾーンに可及的に近
接させることができ、従つて、その両傾斜通水路
を流れる冷却水によつて、サイアミーズ型シリン
ダブロツク上のシリンダヘツドに特有の該高温加
熱ゾーンを効率よく冷却することができるから、
この種機関の性能及び耐久性の向上に大いに寄与
し得るものである。
C. Effects of the invention As described above, according to the invention, a cylinder head is polymerized and bonded via a gasket to the upper surface of a Siamese-type cylinder block that does not have a water jacket between adjacent cylinder bores, and the block is attached to the cylinder block. A water-cooled multi-cylinder internal combustion engine comprising a side water jacket and a head side water jacket formed in the cylinder head, and communicating between the two water jackets through gasket holes and a plurality of water passages formed in the cylinder head. In the cylinder head cooling system of an engine,
Among the plurality of water passages, a pair of water passages are bored in the boundary wall between the adjacent combustion chambers of the cylinder head, and are oriented with respect to the crank axis in order to bring them close to the lower center of the boundary wall. Since both of the inclined water passages are formed to be approximately symmetrical with respect to each other and to be inclined toward each other toward the head side water jacket, the two inclined passageways are formed so that the adjacent combustion The high-temperature heating zone at the lower central part of the boundary wall between the chambers can be brought as close as possible, and therefore the cooling water flowing through both inclined water passages provides the characteristic characteristic of the cylinder head on a Siamese type cylinder block. Since the high temperature heating zone can be efficiently cooled,
This can greatly contribute to improving the performance and durability of this type of engine.

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

図面は本考案の一実施例を示すもので、第1図
は第3図−線に沿う機関本体の縦断面図、第
2図は第3図−線に沿う機関本体の縦断面
図、第3図は第1図−線に沿うシリンダヘツ
ドの底面図である。 B……シリンダブロツク、L−L……クランク
軸線、H……シリンダヘツド、2……燃焼室、3
……ガスケツト、32……ブロツク側水ジヤケツ
ト、33……ヘツド側水ジヤケツト、34……ガ
スケツト孔、35……通水路、35a……傾斜通
水路、36……境界壁。
The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of the engine main body along the line of FIG. 3, and FIG. 2 is a longitudinal sectional view of the engine main body along the line of FIG. FIG. 3 is a bottom view of the cylinder head taken along the line in FIG. 1; B...Cylinder block, L-L...Crank axis, H...Cylinder head, 2...Combustion chamber, 3
... gasket, 32 ... block side water jacket, 33 ... head side water jacket, 34 ... gasket hole, 35 ... water passageway, 35a ... inclined water passageway, 36 ... boundary wall.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 互いに隣接するシリンダボア1相互間に水ジヤ
ケツトを有しないサイアミーズ型シリンダブロツ
クBの上面にガスケツト3を介してシリンダヘツ
ドHを重合結着し、前記シリンダブロツクBにブ
ロツク側水ジヤケツト32を、また前記シリンダ
ヘツドBにヘツド側水ジヤケツト33をそれぞれ
形成し、その両水ジヤケツト32,33間をガス
ケツト孔34及びシリンダヘツドHに形成した複
数の通水路35,35aを介して連通させてな
る、水冷式多気筒内燃機関におけるシリンダヘツ
ドの冷却装置であつて、前記複数の通水路35,
35aのうち、前記シリンダヘツドHの互いに隣
接する燃焼室2相互間の境界壁36に穿設される
一対の通水路35aは、これらを該境界壁36の
中央下部に近接させるべく、クランク軸線に対し
て略対称に、且つ前記ヘツド側水ジヤケツト33
に向かうにつれて互いに接近するように傾斜させ
て形成されることを特徴とする、水冷式多気筒内
燃機関におけるシリンダヘツドの冷却装置。
A cylinder head H is polymerized and bonded via a gasket 3 to the upper surface of a Siamese-type cylinder block B having no water jacket between adjacent cylinder bores 1, and a block-side water jacket 32 is attached to the cylinder block B, and a water jacket 32 is attached to the cylinder block B. A water-cooled multi-head cylinder is constructed by forming a head-side water jacket 33 in each head B, and communicating between the two water jackets 32 and 33 via a gasket hole 34 and a plurality of water passages 35 and 35a formed in the cylinder head H. A cooling device for a cylinder head in a cylinder internal combustion engine, wherein the plurality of water passages 35,
35a, a pair of water passages 35a bored in the boundary wall 36 between the adjacent combustion chambers 2 of the cylinder head H are aligned with the crank axis in order to bring them close to the central lower part of the boundary wall 36. substantially symmetrically with respect to the water jacket 33 on the head side.
1. A cooling device for a cylinder head in a water-cooled multi-cylinder internal combustion engine, characterized in that the cylinder heads are formed so as to be inclined toward each other as they move toward each other.
JP1984146340U 1984-09-27 1984-09-27 Expired JPH0216020Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984146340U JPH0216020Y2 (en) 1984-09-27 1984-09-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984146340U JPH0216020Y2 (en) 1984-09-27 1984-09-27

Publications (2)

Publication Number Publication Date
JPS6159830U JPS6159830U (en) 1986-04-22
JPH0216020Y2 true JPH0216020Y2 (en) 1990-05-01

Family

ID=30704576

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984146340U Expired JPH0216020Y2 (en) 1984-09-27 1984-09-27

Country Status (1)

Country Link
JP (1) JPH0216020Y2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135638U (en) * 1973-03-09 1974-11-21

Also Published As

Publication number Publication date
JPS6159830U (en) 1986-04-22

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