JPS5828416B2 - Engine component fixing device - Google Patents
Engine component fixing deviceInfo
- Publication number
- JPS5828416B2 JPS5828416B2 JP3145680A JP3145680A JPS5828416B2 JP S5828416 B2 JPS5828416 B2 JP S5828416B2 JP 3145680 A JP3145680 A JP 3145680A JP 3145680 A JP3145680 A JP 3145680A JP S5828416 B2 JPS5828416 B2 JP S5828416B2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- head
- nut
- fixing device
- head bolt
- 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
- Connection Of Plates (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【発明の詳細な説明】
この発明はエンジンの部材固定装置、詳しくはヘッドボ
ルトの上に軸支用部材が位置するエンジンにおいて、上
記ヘッドボルトの操作性を改善した部材固定装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a member fixing device for an engine, and more particularly to a member fixing device for an engine in which a shaft supporting member is located on the head bolt, with improved operability of the head bolt.
エンジンにおいて、シリンダヘッドとシリンダブロック
間に水通路や油通路のためにガスケットが介設されてい
るが、水、油の漏れがあると、これを防止するために、
ヘッドボルトをさらに増し締めを行なう必要がある。In engines, gaskets are installed between the cylinder head and cylinder block for water and oil passages, but in order to prevent water and oil leakage,
It is necessary to further tighten the head bolts.
ところで、たとえば、オーバヘッドカム力式で見られる
ように、ヘッドボルトの上に、カムシャフトを支持する
軸支用部材が位置する構造では、ヘッドボルトの締め付
けに際し、上記軸支用部材をシリンダヘッドから分離す
るために、これらを結合している他のボルトを取りはず
したりしなければならず、作業が煩雑になる欠点がある
。By the way, for example, in a structure where a shaft support member supporting the camshaft is located above the head bolt, as seen in the overhead cam force type, when tightening the head bolt, the shaft support member is removed from the cylinder head. In order to separate them, it is necessary to remove other bolts that connect them, which has the disadvantage of making the work complicated.
この発明は上記欠点を解消するためになされたもので、
軸支用部材をシリンダヘッドに取り付けたまま、ヘッド
ボルトの締結力を増大操作できる部材固定装置を提供す
ることを目的とする。This invention was made to eliminate the above drawbacks.
It is an object of the present invention to provide a member fixing device that can increase the fastening force of a head bolt while a shaft supporting member is attached to a cylinder head.
以下、この発明の実施例を図面にもとづいて説明する。Embodiments of the present invention will be described below based on the drawings.
第１図において、１はシリンダブロックで、その上端面
には吸気孔２、排気孔３を形成したシリンダヘッド４が
ガスケット５を介してヘッドボルト６により固定されて
いる。In FIG. 1, reference numeral 1 denotes a cylinder block, and a cylinder head 4 having an intake hole 2 and an exhaust hole 3 formed on its upper end surface is fixed by head bolts 6 through a gasket 5.
７はカムシャフト８のカム９と弁ばね１０とにより開閉
する吸気弁で、その弁棒１１とカム９間にはタペット１
２が介装されている。Reference numeral 7 designates an intake valve that is opened and closed by a cam 9 of a camshaft 8 and a valve spring 10, and a tappet 1 is disposed between the valve stem 11 and the cam 9.
2 is interposed.
１３は同様の機構により開閉する排気弁である。13 is an exhaust valve opened and closed by a similar mechanism.
１４は排気弁１３側のカムシャフトである。14 is a camshaft on the exhaust valve 13 side.
それぞれのカムシャツＩ−８、１４は下部側の軸支用第
１部材１５と、上部側の第２部材１６．１７とに回転自
在に支持されている。Each of the cam shirts I-8 and 14 is rotatably supported by a first pivot member 15 on the lower side and a second member 16, 17 on the upper side.
各第２部材１６，１７の外側部は、第１部材１５ととも
に第１ボルト１８およびナツト１９によりシリンダヘッ
ド４の上面部に固定されて′Ｊ）る。The outer side of each second member 16, 17 is fixed to the upper surface of the cylinder head 4 together with the first member 15 by a first bolt 18 and a nut 19.
これに対し、各第２部材１６，１７の他の内側部は、ヘ
ッドボルト６と同軸上に配置された第２ボルト２０およ
びナツト２１により第１部材１５に締結されている。On the other hand, the other inner parts of each of the second members 16 and 17 are fastened to the first member 15 by a second bolt 20 and a nut 21 that are arranged coaxially with the head bolt 6.
ナツト２１の内周中部には第２ボルト螺合用ねじ部２２
のねじ径より大径の角溝２３が設けられ、また外周下部
には角状部２４が形成されている。At the center of the inner circumference of the nut 21 is a threaded portion 22 for screwing the second bolt.
A square groove 23 having a diameter larger than the thread diameter is provided, and a square portion 24 is formed at the lower part of the outer periphery.
そしてこの角状部２４の下端部はヘッドボルト６の頭部
２５に設けられた角状溝２６の上部にトルク伝動可能に
嵌挿されている。The lower end of this angular part 24 is fitted into the upper part of a angular groove 26 provided in the head 25 of the head bolt 6 so as to be able to transmit torque.
２９は第１部材１５の中央部を固定したボルト、３０・
３１はカムシャフト８．１４の上部を被覆したカバーで
ある。29 is a bolt that fixes the center part of the first member 15; 30;
31 is a cover covering the upper part of the camshaft 8.14.
第２図において、３３は上記ナツト２１の角溝２３のそ
れに符号する断面形状をもつたトルク阪動用の角棒、３
４はトルクレンチである。In FIG. 2, reference numeral 33 denotes a square rod for torque vibration having a cross-sectional shape corresponding to that of the square groove 23 of the nut 21;
4 is a torque wrench.
上記構成において、ヘッドボルト６の上にハ軸支用第１
部材１５、第２部材１６，１７が位置しており、しかし
、ヘッドボルト６の締結力はこれら第１部材１５、第２
部材１６，１７をシリンダヘッド４に取り付けたまま、
増大することができる。In the above configuration, the first shaft supporting shaft is mounted on the head bolt 6.
member 15 and second members 16 and 17 are located, however, the fastening force of the head bolt 6 is
With the members 16 and 17 attached to the cylinder head 4,
can be increased.
その操作は下記の通りである。まずカバー３０．３１を
除去したのち、第２ボルト２０をゆるめ、ナツト２１と
の螺合を解除するとともに、部材ボルト孔３５から抜き
取る。The operation is as follows. First, after removing the covers 30 and 31, the second bolts 20 are loosened to release the threaded engagement with the nuts 21, and the members are pulled out from the bolt holes 35.
このとき、ナツト２１が下降して角状部２４と角状溝２
６との係合深さが増大する。At this time, the nut 21 is lowered to connect the corner portion 24 and the corner groove 2.
The depth of engagement with 6 increases.
ついで第２図のように、部材ボルト孔３５からナツト２
１の角溝２３に角棒３３の下端部を嵌合し、かつトルク
レンチ３４により角棒３３にトルクを与える。Next, as shown in FIG. 2, insert the nut 2 from the member bolt hole 35.
The lower end of the square bar 33 is fitted into the square groove 23 of No. 1, and torque is applied to the square bar 33 using the torque wrench 34.
すると、角棒３３からナツト２１へ、さらにナツト２１
からヘッドボルト６に上記トルクが伝達され、ヘッドボ
ルト６の締結力が増大する。Then, from the square rod 33 to the nut 21, and then to the nut 21
The torque is transmitted from the head bolt 6 to the head bolt 6, and the tightening force of the head bolt 6 increases.
上記作業後は、角棒３３が抜き取られ、かつ第２ボルト
２０が再び第１図のようにナツト２１に螺合され、軸支
用第１部材１５と第２部材１６゜１１間が元通りの状態
に締結される。After the above operation, the square rod 33 is removed, and the second bolt 20 is again screwed into the nut 21 as shown in FIG. is concluded in the state of
このとき、すなわち第２ボルト２０をナツト２１に螺合
しかつ締め付けるとき、ヘッドボルト６の頭部２５によ
りナツト２１のから回りが防止されるので、第２ボルト
２０の取り付けは迅速に行われる。At this time, that is, when the second bolt 20 is screwed into the nut 21 and tightened, the head 25 of the head bolt 6 prevents the nut 21 from twisting, so that the second bolt 20 can be installed quickly.
なお、上記実施例では、第２ボルト２０に対応するナツ
ト２１の外周は軸方向に段部を有する形状としたが、第
３図のように、ナツト２１の外周はストレートに形成す
ることができる。In the above embodiment, the outer periphery of the nut 21 corresponding to the second bolt 20 has a step in the axial direction, but the outer periphery of the nut 21 can be formed straight as shown in FIG. .
以上のように、この発明によれば、ヘッドボルトの上に
軸支用部材が位置するにもかかわらず、この軸支用部材
をシリンダヘッドに取り付けたまま、ヘッドボルトを操
作してその締結力を増大操作することができ、作業性が
極めてよいという効果を有するものである。As described above, according to the present invention, even though the shaft support member is located on the head bolt, the head bolt can be operated and the fastening force applied while the shaft support member is attached to the cylinder head. This has the effect that it is possible to increase the number of operations, and the workability is extremely good.
第１図はこの発明を実施したエンジンの一部切欠断面図
、第２図はヘッドボルトの操作状態図、第３図はこの発
明の変形例を示す一部切欠断面図である。
１・・・・・・シリンダブロック、４・・・・・・シリ
ンダヘッド、６・・・・・・ヘッドボルト、１５・・・
・・・軸支用第１部材、１６，１７・・・・・・軸支用
第２部材、２０・・・・・・第２ボルト、２１・・・・
・・ナツト、２３・・・・・・角溝、２４・・・・・・
角状部、２５・・・・・・頭部、２６・・・・・・角状
溝。FIG. 1 is a partially cutaway sectional view of an engine embodying the present invention, FIG. 2 is a diagram showing the operating state of a head bolt, and FIG. 3 is a partially cutaway sectional view showing a modification of the present invention. 1... Cylinder block, 4... Cylinder head, 6... Head bolt, 15...
... First member for shaft support, 16, 17 ... Second member for shaft support, 20 ... Second bolt, 21 ...
... Nut, 23 ... Square groove, 24 ...
Angular part, 25...head, 26...angular groove.
Claims (1)
ンダヘッドと、ともにシリンダヘッドに固定された軸支
持用筆１、第２部材と、上記ヘッドボルトと同軸上に配
置された上記第１部材と第２部材とを締結する第２ボル
トおよびナツトとを有し、このナツトの内周上部に第２
ボルト螺合用ねじ径より大径の角溝を設け、外周に角状
部を形成して、この角状部が上記ヘッドボルトの頭部に
設けられた角状溝に嵌挿されていることを特徴とするエ
ンジンの部材固定装置。1 A cylinder head fixed to a cylinder block with a head bolt, a shaft support brush 1 and a second member both fixed to the cylinder head, and the first member and second member arranged coaxially with the head bolt. A second bolt and a nut are provided on the upper inner periphery of the nut.
A square groove with a diameter larger than the diameter of the screw for screwing the bolt is provided, a square part is formed on the outer periphery, and this square part is fitted into the square groove provided in the head of the head bolt. Features: Engine component fixing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3145680A JPS5828416B2 (en) | 1980-03-11 | 1980-03-11 | Engine component fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3145680A JPS5828416B2 (en) | 1980-03-11 | 1980-03-11 | Engine component fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56126651A JPS56126651A (en) | 1981-10-03 |
| JPS5828416B2 true JPS5828416B2 (en) | 1983-06-15 |
Family
ID=12331749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3145680A Expired JPS5828416B2 (en) | 1980-03-11 | 1980-03-11 | Engine component fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5828416B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0358013U (en) * | 1989-10-09 | 1991-06-05 | ||
| JPH0359713U (en) * | 1989-10-17 | 1991-06-12 |
-
1980
- 1980-03-11 JP JP3145680A patent/JPS5828416B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0358013U (en) * | 1989-10-09 | 1991-06-05 | ||
| JPH0359713U (en) * | 1989-10-17 | 1991-06-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56126651A (en) | 1981-10-03 |
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