JPS6210403Y2 - - Google Patents
Info
- Publication number
- JPS6210403Y2 JPS6210403Y2 JP19175380U JP19175380U JPS6210403Y2 JP S6210403 Y2 JPS6210403 Y2 JP S6210403Y2 JP 19175380 U JP19175380 U JP 19175380U JP 19175380 U JP19175380 U JP 19175380U JP S6210403 Y2 JPS6210403 Y2 JP S6210403Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- oil
- cam cap
- bolt
- holes
- 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
- 238000004891 communication Methods 0.000 claims description 12
- 238000005461 lubrication Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 40
- 239000011435 rock Substances 0.000 description 9
- 239000010687 lubricating oil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Description
【考案の詳細な説明】
〔技術分野〕
本考案は内燃料機関のロツカーアームを取付け
るための平行に配設される一対のロツカシヤフト
を挿通するカムキヤツプを具え、前記ロツカアー
ムにより給気弁、排気弁からなる動弁系を潤滑す
るためのものであり、ロツカアームの両側に設け
られるボルト孔を傾斜した油連絡穴により橋絡せ
しめることにより、ロツカシヤフト間のオイル流
路を容易にしかも安価に形成しうるカムキヤツプ
に関する。[Detailed Description of the Invention] [Technical Field] The present invention includes a cam cap that is inserted through a pair of rocker shafts arranged in parallel to which rocker arms of an internal fuel engine are attached, and the rocker arms are connected to an air intake valve and an exhaust valve. This cam cap is for lubricating a valve train, and relates to a cam cap that can easily and inexpensively form an oil flow path between rocker shafts by bridging bolt holes provided on both sides of a rocker arm with an inclined oil communication hole. .
オーバーヘツドカムキヤツプ等のエンジンの平
行に配設したロツカシヤフト間において、一方の
ロツカシヤフトに供給されるオイルを同時に他方
のロツカシヤフトに流入せしめるには、従来例第
６図に示すように、ロツカシヤフトａにその中心
の油穴ｂに連通する横孔ｃを設け、該横穴ｃ間を
カムキヤツプ１ａのリブｄに穿設される油連結穴
ｅにより連結するか、又は第７図に示すように、
リブｄに、ロツカシヤフトａ，ａの下方において
ボルト孔ｆ，ｆを連結する油連絡穴ｅを設けてい
た。なおロツカアームにはロツカシヤフトａの油
穴ｂに分岐する導孔（図示せず）を通るオイルに
より潤滑される。
In order to simultaneously make the oil supplied to one rock shaft flow into the other rock shaft between rock shafts such as overhead cam caps arranged in parallel with each other in the engine, as shown in FIG. A horizontal hole c communicating with the central oil hole b is provided, and the horizontal holes c are connected by an oil connecting hole e formed in the rib d of the cam cap 1a, or as shown in FIG.
An oil communication hole e was provided in the rib d to connect the bolt holes f and f below the rocker shafts a and a. The rocker arm is lubricated by oil passing through a guide hole (not shown) that branches to the oil hole b of the rocker shaft a.
しかし第６図に示したものはロツカシヤフトａ
に横穴ｃを設ける必要があり、部品の加工工数を
増大する他、横穴ｃと油連絡穴ｅとを長手方向に
正しく位置合せしうる用にロツカシヤフトａを打
ち込まなければならず、その打ち込みの手間も増
大させる。又第７図に示したものはオイル連結穴
ｄの言うの開口部をプラグｇを用いて封栓する必
要がありその部品コスト、又取付工数も必要とな
る。 However, the one shown in Figure 6 is a rotsukashaft a.
It is necessary to provide a horizontal hole c, which increases the number of man-hours for machining the part, and it is also necessary to drive a locking shaft a in order to correctly align the horizontal hole c and the oil communication hole e in the longitudinal direction, which increases the time and effort of driving. also increases. Further, in the case shown in FIG. 7, it is necessary to seal the opening of the oil connection hole d using a plug g, which increases the cost of parts and the number of man-hours for installation.
本考案は、油連結穴をリブに傾斜して形成する
ことを基本として、構造を簡易化でき装置のコス
トを低減を計るとともに、前記問題点を解決しう
る動弁系の潤滑構造の提供を目的としている。
The present invention aims to provide a lubrication structure for a valve train that can simplify the structure and reduce the cost of the device, as well as solve the above-mentioned problems, based on the fact that the oil connection hole is formed at an angle in the rib. The purpose is
〔考案の開示〕
本考案の動弁系の潤滑構造（以下構造という）
は、油穴を貫設した１対のロツカシヤフト９，１
０がその両側で平行に挿入されかつ該ロツカシヤ
フト９，１０の前記油穴を夫々直角に貫通する第
１、第２の取付ボルト１６，１７を用いてシリン
ダーヘツド４０に固定することにより該シリンダ
ーヘツド４０との間でカム軸２を保持するカムキ
ヤツプ１を具えており、該カムキヤツプの両側に
対置される前記第１、第２の取付ボルト１６，１
７を間隙を有して挿入する第１、第２のボルト孔
１４，１５間を、一端が第１のボルト孔１４にロ
ツカシヤフト１０の下方において連通しかつ他端
がロツカシヤフト９の内方縁近傍を通り第２のボ
ルト孔１４に通じるとともに、該ロツカシヤフト
９の外方縁で遮断される傾斜した油連絡穴３２に
より連結しており、１つのボルト孔に流入する潤
滑油を他のボルト孔に流過させることができる。[Disclosure of the invention] Valve train lubrication structure (hereinafter referred to as structure) of the invention
is a pair of rock shafts 9 and 1 with oil holes penetrated through them.
The cylinder head is fixed to the cylinder head 40 using first and second mounting bolts 16 and 17, which are inserted parallel to each other on both sides and pass through the oil holes of the rocker shafts 9 and 10 at right angles, respectively. 40, the first and second mounting bolts 16, 1 are opposed to each other on both sides of the cam cap.
7 is inserted with a gap between the first and second bolt holes 14 and 15, one end of which communicates with the first bolt hole 14 below the rocker shaft 10, and the other end near the inner edge of the rocker shaft 9. The lubricating oil flowing into one bolt hole is connected to the second bolt hole 14 through an inclined oil communication hole 32 which is blocked by the outer edge of the locking shaft 9. It can be allowed to flow through.
以下本考案の構造の一実施例をカムキヤツプ１
が加工及び組立の工数削減及びオイル溜めを形成
するためにカム軸２の上方を支承する第１〜第３
の軸受部３，４，５を一体に連結、形成された場
合を例にとり図面に基づき説明する。
An example of the structure of the present invention is shown below as cam cap 1.
The first to third camshafts support the upper part of the camshaft 2 in order to reduce the number of man-hours for processing and assembly and to form an oil reservoir.
An example in which the bearing parts 3, 4, and 5 are integrally connected and formed will be explained based on the drawings.
第１〜５図において、カムキヤツプ１はその前
端にオイルシール取付孔６、デイストリビユータ
駆動用のギヤの取付部７を介して前記第１の軸受
け部３が形成され、該第１の軸受け部３の両側に
はその上方でロツカシヤフト９，１０を、カム軸
２と平行に嵌着するためにの透孔１１，１１夫々
水平に設けられた支柱片１２，１３を立設する。
又該支柱片１２，１３には前記透孔１１，１１の
中心を通りかつ該透孔１１，１１と直交するボル
ト孔１４，１５を通る第１、第２の取付ボルト１
６，１７はカムキヤツプ１の両側で対置される。
なお該第１の軸受部３の後方には縦リブ２０を隔
てて同様な支柱片２１〜２６が等ピツチでかつ縦
リブ２０間においてロツカーアーム３０取付用の
開口部３１を形成しつつ隔設されるとともに、第
１の軸受部３に隣接する支柱片２１，２２により
前記第２の軸受部４が又最後尾の支柱片２５，２
６間には第３の軸片部５が夫々形成される。前記
第１の軸受部３の支柱片１２，１３間の横のリブ
１９には油連絡穴３２を穿設する。該油連絡穴３
２は、第４図に示すように一端がカムキヤツプ１
下端と透孔１１との間略中央において第２のボル
ト孔１５に連通し、又他端が第１のボルト孔１４
と透孔１１との交叉点ｋのやや上方を軸芯が通る
ように一つの支柱片１２の側面から傾斜し開穿さ
れている。ロツカシヤフト９，１０は中央に油穴
３４か貫設されるとともに、各支柱片１２，１
３，２１〜２６のそれぞれのボルト孔１４，１
５，３３位置において油穴３４に直交して貫通す
る縦孔３５が設けられ、従つて第５図に示すよう
にロツカシヤフト９，１０を縦穴３５を上下にし
透孔１１に嵌着するとともに縦孔３５を通り各ボ
ルト孔１４，１５，３３に夫々取付ボルト１６，
１７を挿入すると、前記第１の軸受部３において
油連結穴３２の他端はロツカシヤフト９の内方下
縁ｘ近傍を通り第１のボルト孔１４に連通しかつ
その外方開口端３６をロツカシヤフト９の外方縁
ｙで遮断されることになり、もつて第１、第２ボ
ルト孔１４，１５は油連結穴３２によつて橋絡さ
れることとなる。なおカムキヤツプ１が取付られ
るシリンダーヘツド４０にはその第１の軸受部３
下方の下軸受部のジヤーナル面４１に、図示しな
いオイルポンプにより潤滑油が吐出される油穴４
２が形成されるとともに、該油穴４２には、ジヤ
ーナル面４１、カムキヤツプ１の下面をへて前記
取付ボルト１５のネジ１８周囲に至る油溝４３が
連設される。 In FIGS. 1 to 5, a cam cap 1 has an oil seal attachment hole 6 and a distributor drive gear attachment portion 7 formed at its front end to form the first bearing portion 3. On both sides of the camshaft 3, support pieces 12 and 13 are provided horizontally above the through holes 11 and 11 for fitting the rocker shafts 9 and 10 parallel to the camshaft 2, respectively.
Further, the support pieces 12 and 13 have first and second mounting bolts 1 passing through the centers of the through holes 11 and 11 and through bolt holes 14 and 15 perpendicular to the through holes 11 and 11, respectively.
6 and 17 are opposed on both sides of the cam cap 1.
Further, behind the first bearing portion 3, similar support pieces 21 to 26 are spaced apart from each other with the vertical ribs 20 in between, and are equally spaced and form an opening 31 for mounting the rocker arm 30 between the vertical ribs 20. At the same time, the second bearing part 4 is also connected to the rearmost pillar pieces 25, 2 by the support pieces 21, 22 adjacent to the first bearing part 3.
A third shaft piece portion 5 is formed between the two portions 6, respectively. An oil communication hole 32 is bored in the horizontal rib 19 between the strut pieces 12 and 13 of the first bearing part 3. The oil communication hole 3
2 has one end connected to the cam cap 1 as shown in Fig. 4.
The lower end and the through hole 11 communicate with the second bolt hole 15 approximately in the center, and the other end communicates with the first bolt hole 14.
A hole is opened at an angle from the side surface of one support piece 12 so that the axis passes slightly above the intersection point k between the support piece 12 and the through hole 11. The rock shafts 9 and 10 are provided with an oil hole 34 in the center, and each support piece 12 and 1
3, 21 to 26 each bolt hole 14, 1
At positions 5 and 33, vertical holes 35 are provided which penetrate orthogonally to the oil holes 34, and therefore, as shown in FIG. 35 and into each bolt hole 14, 15, 33, respectively.
17, the other end of the oil connecting hole 32 in the first bearing part 3 passes through the vicinity of the inner lower edge x of the locking shaft 9 and communicates with the first bolt hole 14, and the outer open end 36 of the oil connecting hole 32 passes through the vicinity of the inner lower edge x of the locking shaft 9 and communicates with the first bolt hole 14. 9, and the first and second bolt holes 14, 15 are bridged by the oil connection hole 32. Note that the cylinder head 40 to which the cam cap 1 is attached has its first bearing portion 3.
An oil hole 4 from which lubricating oil is discharged by an oil pump (not shown) is provided on the journal surface 41 of the lower bearing portion below.
2 is formed, and an oil groove 43 extending through the journal surface 41, the lower surface of the cam cap 1, and around the thread 18 of the mounting bolt 15 is connected to the oil hole 42.
然してカムキヤツプ１をシリンダヘツド４０に
載置し、カム軸２を上方より支承し、かつ透孔１
１に密に嵌入されるロツカシヤフト９，１０の縦
孔３５を通る第１、第２の取付ボルト１６，１７
を用いて固着する。なおそのとき第１、第２のボ
ルト孔１４，１５の上端は、第１、第２の取付ボ
ルト１６，１７に介装されるシール座金を用いて
夫々密封する。従つて前記油溝４３を通り圧送さ
れる潤滑油は、第２のボルト孔１５と、第２の取
付ボルト１７との間の間隙を通つて上昇し縦孔３
５を通り一方のロツカシヤフト１０の油穴３４に
流入すると同時に、油連結穴３２を通り他方の間
隙を下から充満しつつ上昇しかつロツカシヤフト
９の油穴３４に流入する。なおロツカシヤフト
９，１０内の油穴３４を通る潤滑油によつて前記
第２、第３の軸受部４，５においてカム軸２を潤
滑でき、又図示しない横穴によつて該横穴上に枢
着されるロツカシヤフト３０を潤滑しうる。 Thus, the cam cap 1 is placed on the cylinder head 40, the cam shaft 2 is supported from above, and the through hole 1 is
The first and second mounting bolts 16 and 17 pass through the vertical holes 35 of the rocker shafts 9 and 10, which are tightly fitted into the shafts 9 and 10.
Fix it using. At this time, the upper ends of the first and second bolt holes 14 and 15 are sealed using seal washers interposed on the first and second mounting bolts 16 and 17, respectively. Therefore, the lubricating oil pumped through the oil groove 43 rises through the gap between the second bolt hole 15 and the second mounting bolt 17 and enters the vertical hole 3.
5 and flows into the oil hole 34 of one rock shaft 10, and at the same time flows through the oil connection hole 32, rising while filling the other gap from below, and flowing into the oil hole 34 of the rock shaft 9. The camshaft 2 can be lubricated in the second and third bearing parts 4 and 5 by the lubricating oil passing through the oil holes 34 in the shaft shafts 9 and 10, and the camshaft 2 can be pivotally mounted on the horizontal hole (not shown). It is possible to lubricate the rock shaft 30 that is used.
叙上のごとく本考案の構造は、カムキヤツプの
両側で対置される取付ボルトのその一つのボルト
孔に、ロツカシヤフトの下方において一端が連通
し、他端がロツカシヤフトの内方外縁近傍を通り
他のボルト孔に連通する傾斜した油連絡穴を設け
たため、１つのボルト孔に流入する潤滑油を他の
ボルト孔に流入でき、従来の装置のように該油連
絡穴と連結するための横穴をロツカシヤフトに設
ける必要もなく加工が容易となり、さらに前記油
連絡穴はロツカシヤフトの外方縁で遮断されてい
るため油連絡穴の開口部をプラグによつて封栓す
る必要もなくなり、従つて部品コストを減じる
他、ロツカ軸の横穴との位置合せのための作業を
なくしうる。このように動弁系の潤滑構造を簡易
化することによつて装置のコストを低減しかつ生
産性を向上させうる。なお本考案のカムキヤツプ
において、オイルポンプに連通するパイプ部材を
直接油穴３４に連結させてもよく、又ボルト孔内
に条溝（図示せず）を縦設し油の流路を円滑にす
ることもできる。
As mentioned above, the structure of the present invention has one end communicating with one bolt hole of the mounting bolts placed opposite to each other on both sides of the cam cap at the bottom of the rocker shaft, and the other end communicating with the bolt hole of the mounting bolt placed on both sides of the cam cap, and the other end passing near the inner outer edge of the rocker shaft. By providing an inclined oil communication hole that communicates with the hole, the lubricating oil that flows into one bolt hole can flow into the other bolt hole, and unlike conventional devices, there is no side hole in the shaft for connecting with the oil communication hole. There is no need to provide one, and the processing becomes easy.Furthermore, since the oil communication hole is blocked by the outer edge of the rock shaft, there is no need to seal the opening of the oil communication hole with a plug, thus reducing parts costs. In addition, the work for aligning the rocker shaft with the horizontal hole can be eliminated. By simplifying the lubrication structure of the valve train in this way, the cost of the device can be reduced and productivity can be improved. In the cam cap of the present invention, the pipe member communicating with the oil pump may be directly connected to the oil hole 34, or a groove (not shown) may be provided vertically in the bolt hole to smooth the oil flow path. You can also do that.
第１図は本考案のカムキヤツプを示す正面図、
第２図はその平面図、第３図はその組立を示す縦
断面図、第４図はＡ−Ａ線断面図、第５図は組立
てた状態を示すＡ−Ａ線位置断面図、第６〜７図
は従来装置を示す断面図である。
１……カムキヤツプ、２……カム軸、９，１０
……ロツカシヤフト、１４……第１のボルト孔、
１５……第２のボルト孔、１６……第１の取付ボ
ルト、１７……第２の取付ボルト、３２……油連
絡穴、４０……シリンダヘツド、ｘ……内方下
縁、ｙ……外方縁。
Figure 1 is a front view showing the cam cap of the present invention;
Fig. 2 is a plan view thereof, Fig. 3 is a vertical sectional view showing its assembly, Fig. 4 is a sectional view taken along the line A-A, Fig. 5 is a sectional view taken along the line A-A showing the assembled state, and Fig. 6 is a sectional view taken along the line A-A. 7 are cross-sectional views showing conventional devices. 1...Cam cap, 2...Cam shaft, 9,10
...Lotsukashaft, 14...First bolt hole,
15...Second bolt hole, 16...First mounting bolt, 17...Second mounting bolt, 32...Oil communication hole, 40...Cylinder head, x...Inner lower edge, y... ...outer edge.
Claims (1)
側で平行に挿入されかつ該ロツカシヤフトの前記
油穴を夫々直角に貫通する第１、第２の取付ボル
トを用いてシリンダーヘツドに固定することによ
り該シリンダーヘツドとの間でカム軸を保持する
カムキヤツプを具え、該カムキヤツプの両側に対
置される前記第１、第２の取付ボルトを間隙を有
して挿入する第１、第２のボルト孔間を、一端が
第１のボルト孔の下方において連通しかつ他端が
ロツカシヤフトの内方下縁近傍を通り第２のボル
ト孔に通じるとともに該ロツカシヤフトの外方縁
で遮断される傾斜した油連絡穴により連結するこ
とを特徴とする動弁系の潤滑構造。 A pair of rocker shafts having oil holes penetrated through them are inserted in parallel on both sides, and are fixed to the cylinder head using first and second mounting bolts that pass through the oil holes of the rocker shafts at right angles, respectively. The cam cap is provided with a cam cap that holds the camshaft between the cam cap and the cylinder head, and the first and second bolt holes, which are opposed to each other on both sides of the cam cap, are inserted with a gap between the first and second bolt holes. , by means of an inclined oil communication hole, one end of which communicates below the first bolt hole, the other end of which passes near the inner lower edge of the locking shaft and communicates with the second bolt hole, and is blocked by the outer edge of the locking shaft. A lubrication structure for a valve train that is characterized by being connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19175380U JPS6210403Y2 (en) | 1980-12-31 | 1980-12-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19175380U JPS6210403Y2 (en) | 1980-12-31 | 1980-12-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57114114U JPS57114114U (en) | 1982-07-15 |
| JPS6210403Y2 true JPS6210403Y2 (en) | 1987-03-11 |
Family
ID=29996178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19175380U Expired JPS6210403Y2 (en) | 1980-12-31 | 1980-12-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6210403Y2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57126512A (en) * | 1981-01-30 | 1982-08-06 | Honda Motor Co Ltd | Lubricator for internal combustion engine |
| JPS59136510A (en) * | 1983-01-26 | 1984-08-06 | Nissan Motor Co Ltd | Valve moving system supporting device of multi-cylinder internal combustion engine |
| JPS5958109A (en) * | 1982-09-27 | 1984-04-03 | Honda Motor Co Ltd | Cam shaft holder of internal combustion engine |
| JPS6065315U (en) * | 1983-10-13 | 1985-05-09 | マツダ株式会社 | Engine valve train lubrication system |
| JPS60100513U (en) * | 1983-12-15 | 1985-07-09 | 本田技研工業株式会社 | Oil supply system for valve train in DOHC internal combustion engine |
| JP5420351B2 (en) * | 2009-08-31 | 2014-02-19 | 本田技研工業株式会社 | Variable valve operating device for internal combustion engine |
| CN101956625B (en) * | 2010-10-31 | 2013-03-20 | 无锡开普动力有限公司 | Lubricating structure of cylinder head |
-
1980
- 1980-12-31 JP JP19175380U patent/JPS6210403Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57114114U (en) | 1982-07-15 |
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