JPS6229617Y2 - - Google Patents
Info
- Publication number
- JPS6229617Y2 JPS6229617Y2 JP214583U JP214583U JPS6229617Y2 JP S6229617 Y2 JPS6229617 Y2 JP S6229617Y2 JP 214583 U JP214583 U JP 214583U JP 214583 U JP214583 U JP 214583U JP S6229617 Y2 JPS6229617 Y2 JP S6229617Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- discharge passage
- oil groove
- swinging member
- hole
- 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
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000003305 oil spill Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 56
- 230000002093 peripheral effect Effects 0.000 description 11
- 239000010687 lubricating oil Substances 0.000 description 7
- 238000003754 machining Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Description
【考案の詳細な説明】
本考案はエンジンのバルブを開閉するロツカー
アーム部に潤滑油を自動供給する装置に主として
利用される給油装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil supply device that is mainly used in a device that automatically supplies lubricating oil to a rocker arm that opens and closes engine valves.
本考案は第１図に示す実公昭54−41871号公報
に掲載された先行技術を改善することを目的とす
る。 The purpose of the present invention is to improve the prior art published in Japanese Utility Model Publication No. 54-41871 as shown in FIG.
この先行技術によれば、オイルポンプによつて
圧送されてきた潤滑油は、固定軸（ロツカーシヤ
フト）ａの送油孔ｂ及び油注出孔ｃを経て、揺動
部材（ロツカーアーム及びブツシユ）ｄの内周面
に形成されたオイル溝ｅの一端と揺動部材ｄに開
設した油吐出通路ｆとの間のギヤツプｇに形成さ
れた摺接スキマを通過して前記油吐出通路ｆに到
り、最後にこの油吐出通路ｆを通じて所望の潤滑
箇所に供給される。 According to this prior art, lubricating oil pumped by an oil pump passes through an oil feed hole b and an oil injection hole c of a fixed shaft (rocker shaft) a, and then flows through a swinging member (rocker arm and bush) d. The oil passes through a sliding gap formed in a gap g between one end of an oil groove e formed on the inner circumferential surface and an oil discharge passage f opened in a swinging member d, and reaches the oil discharge passage f; Finally, the oil is supplied to desired lubrication locations through this oil discharge passage f.
前記ギヤツプｇの摺接スキマは所謂絞り通路に
なつていて、ギヤツプｇの距離に基き一定量の潤
滑油を常時前記油吐出通路ｆに送る作用を営んで
いる。従つて所定量の潤滑油を正確に油吐出通路
ｆに送るためには、前記ギヤツプｇが正確な寸法
に形成されることが必要である。 The sliding clearance of the gap g is a so-called throttle passage, and has the function of constantly sending a certain amount of lubricating oil to the oil discharge passage f based on the distance of the gap g. Therefore, in order to accurately send a predetermined amount of lubricating oil to the oil discharge passage f, the gap g must be formed with accurate dimensions.
ところで前記先行技術においては、オイル溝ｅ
の一端に対し、オイル溝ｅの長さ方向に一定の距
離（ギヤツプ）ｇ隔たつた位置に前記油吐出通路
ｆの内周面側開口ｉを配設しているので、このギ
ヤツプｇの寸法を正確に形成するのに加工上の困
難を伴う。 By the way, in the prior art, the oil groove e
Since the inner peripheral surface side opening i of the oil discharge passage f is arranged at a position separated from one end by a certain distance (gap) g in the length direction of the oil groove e, the dimension of this gap g It is difficult to form it accurately.
特に第２図に示す実施品の如く、ブツシユを有
しないロツカーアーム（揺動部材）ｄの内周面に
直接切削加工で所定長のオイル溝ｅを形成する場
合には、その端部ｈを端に向け漸次浅くなるよう
に形成する必要があるため、前記ギヤツプｇを正
確な寸法に形成することが極めて困難となり、こ
の結果所定量の潤滑油を油吐出通路ｆ、延いては
所望の潤滑箇所に供給することが困難となる。 In particular, when an oil groove e of a predetermined length is formed by direct cutting on the inner circumferential surface of a rocker arm (swinging member) d without a bushing, as in the embodiment shown in FIG. Since it is necessary to form the gap so that it becomes gradually shallower toward It becomes difficult to supply the
本考案は前記先行技術の有する問題点を改善し
たものであつて、軸心に貫通する送油孔及びこの
送油孔に連通すると共に半径方向に貫通する油流
出孔を備えた固定軸と、この固定軸の外周に揺動
自在に嵌合され、且つ前記油流出孔に常時連通す
るように内周面に形成されたオイル溝及び内周面
に開口端を有する油吐出通路を備えた揺動部材と
からなる給油装置において、前記油吐出通路の内
周面側開口端を、前記オイル溝に対しその幅方向
に一定の距離隔たつた位置に配設したことを特徴
とする。 The present invention improves the problems of the prior art, and includes a fixed shaft having an oil feed hole penetrating through the shaft center and an oil outflow hole communicating with the oil feed hole and penetrating in the radial direction; A rocker is fitted to the outer periphery of the fixed shaft so as to be able to swing freely, and is provided with an oil groove formed on the inner peripheral surface so as to constantly communicate with the oil outflow hole, and an oil discharge passageway having an open end on the inner peripheral surface. In the oil supply device comprising a moving member, the opening end of the oil discharge passage on the inner peripheral surface side is arranged at a position spaced apart from the oil groove by a certain distance in the width direction thereof.
第３図及び第４図に示す本考案の実施例はエン
ジンのロツカーアーム部の自動給油装置に関する
ものである。 The embodiment of the present invention shown in FIGS. 3 and 4 relates to an automatic oil supply system for a rocker arm of an engine.
固定軸（ロツカーシヤフト）１の軸心にはオイ
ルポンプから圧送されてくる潤滑油を導く送油孔
２を貫通状に形成すると共に、固定軸１の半径方
向には前記送油孔２に連通する油流出孔３を外周
面に貫通するように設けている。 An oil feed hole 2 for guiding lubricating oil pumped from an oil pump is formed in the axial center of the fixed shaft (rocker shaft) 1 in a penetrating manner, and the fixed shaft 1 communicates with the oil feed hole 2 in the radial direction. An oil outflow hole 3 is provided so as to penetrate through the outer peripheral surface.
前記固定軸１の外周には揺動部材（ロツカーア
ーム）４を揺動自在に嵌合している。この揺動部
材４の内周面の円周方向には全周に亘つてオイル
溝５を形成し、且つこのオイル溝５を常時前記油
流出孔３に連通せしめている。又揺動部材４には
その内外周を貫通する油吐出通路６を設け、その
吐出口７より吐き出した潤滑油によつてロツカー
アーム周辺部を潤滑しうるようにしている。油吐
出通路６の内周面側の開口端８は前記オイル溝５
に対しその幅方向に一定の距離（ギヤツプ）Ｇ隔
たつた位置に配設している。 A swinging member (rocker arm) 4 is fitted around the outer periphery of the fixed shaft 1 so as to be swingable. An oil groove 5 is formed along the entire circumference of the inner peripheral surface of the swinging member 4, and the oil groove 5 is always communicated with the oil outflow hole 3. Further, the rocking member 4 is provided with an oil discharge passage 6 passing through its inner and outer peripheries, so that the lubricating oil discharged from the discharge port 7 can lubricate the area around the rocker arm. The opening end 8 on the inner peripheral surface side of the oil discharge passage 6 is connected to the oil groove 5.
It is arranged at a position separated by a fixed distance (gap) G in the width direction.
尚、第３図において、９はプツシユロツド、１
０はアジヤストスクリユー、１１はバルブであ
る。 In addition, in Fig. 3, 9 is push rod, 1
0 is an adjustment screw, and 11 is a valve.
前記実施例は、オイル溝５を揺動部材４の内周
面にエンドレスに形成しているが、このオイル溝
５を第５図に示す如く、斜行するように形成した
り、第６図に示す如く、前記内周面の円周方向の
一部に形成することができる。又第７図に示す如
く、オイル溝５の一部に屈曲部１２を設けたり、
第８図に示す如く、オイル溝５に軸方向の分岐溝
１３，１３を形成したりすることもできる。この
第８図に示す実施例では、前記分岐溝１３に対し
その幅方向に一定の距離Ｇ隔つた位置に、前記油
吐出通路６の開口端８を開設している。 In the embodiment described above, the oil groove 5 is formed endlessly on the inner peripheral surface of the swinging member 4, but the oil groove 5 may be formed obliquely as shown in FIG. 5, or as shown in FIG. As shown in , it can be formed in a part of the inner circumferential surface in the circumferential direction. Further, as shown in FIG. 7, a bent portion 12 is provided in a part of the oil groove 5,
As shown in FIG. 8, branch grooves 13, 13 in the axial direction may be formed in the oil groove 5. In the embodiment shown in FIG. 8, the opening end 8 of the oil discharge passage 6 is opened at a position separated from the branch groove 13 by a certain distance G in the width direction thereof.
第３図及び第４図に示す実施例は、ロツカーア
ーム（揺動部材）４の内周面に直接オイル溝５を
形成しているが、ロツカーアーム本体に圧入した
ブツシユにオイル溝５を形成してもよく、特に第
７図及び第８図に示すような複雑な形状のものに
は後者のものが適している。 In the embodiment shown in FIGS. 3 and 4, the oil groove 5 is formed directly on the inner peripheral surface of the rocker arm (swinging member) 4, but the oil groove 5 is formed in a bush press-fitted into the rocker arm body. The latter is particularly suitable for complex shapes as shown in FIGS. 7 and 8.
本考案は上記構成を有し、油吐出通路側開口端
を、前記オイル溝に対しその幅方向に一定の距離
（ギヤツプ）隔たつた位置に配設しているので、
オイル溝の長さに加工上の寸法誤差があつても、
常に前記ギヤツプを一定に保つことができる。従
つて本考案によれば製品間の前記ギヤツプのバラ
ツキを無すことができ、すべての製品の油吐出通
路から所定量の潤滑油を正確に供給することがで
きる。又オイル溝の加工に際し、その長さ方向の
寸法精度は全く要求されないので、その加工が容
易となり生産性を上げることができる。特にブツ
シユを用いず揺動部材の内周面に直接オイル溝を
形成するものにおいては前記効果は顕著である。 The present invention has the above-mentioned configuration, and the opening end on the oil discharge passage side is arranged at a position separated from the oil groove by a certain distance (gap) in the width direction thereof.
Even if there is a dimensional error in the length of the oil groove due to machining,
The gap can always be kept constant. Therefore, according to the present invention, variations in the gap between products can be eliminated, and a predetermined amount of lubricating oil can be accurately supplied from the oil discharge passages of all products. Further, when machining the oil groove, dimensional accuracy in the length direction is not required at all, so machining becomes easy and productivity can be increased. The above effect is particularly remarkable in those in which oil grooves are formed directly on the inner circumferential surface of the swinging member without using a bush.
更に本考案によれば、オイル溝の長さは制限さ
れず、例えば第３図及び第４図に示す実施例の如
く、揺動部材の内周面の全周に亘つてオイル溝を
形成することができるが、この場合には固定軸全
周に均一潤滑を行うことができると共に油圧が固
定軸全周に均一に負荷されるので偏摩耗が生じに
くいという効果がある。 Furthermore, according to the present invention, the length of the oil groove is not limited; for example, as in the embodiments shown in FIGS. 3 and 4, the oil groove is formed over the entire circumference of the inner peripheral surface of the swinging member. However, in this case, it is possible to uniformly lubricate the entire circumference of the fixed shaft, and the hydraulic pressure is evenly applied to the entire circumference of the fixed shaft, so uneven wear is less likely to occur.
第１図は先行技術を示す一部縦断正面図、第２
図は従来品の要部の縦断正面図、第３図は本考案
の実施例の一部縦断正面図、第４図はその要部の
縦断側面図、第５図、第６図、第７図及び第８図
は夫々本考案の他の実施例の揺動部材の内周面を
展開して示す展開図である。
１……固定軸、２……送油孔、３……油流出
孔、４……揺動部材、５……オイル溝、６……油
吐出通路、８……油吐出通路の内周面側開口端、
Ｇ……一定の距離。
Figure 1 is a partially longitudinal front view showing the prior art;
The figure is a longitudinal sectional front view of the main parts of the conventional product, Fig. 3 is a partial longitudinal sectional front view of the embodiment of the present invention, Fig. 4 is a longitudinal sectional side view of the main parts, Figs. 8 and 8 are exploded views showing the inner circumferential surface of a swinging member according to another embodiment of the present invention. 1... Fixed shaft, 2... Oil feed hole, 3... Oil outflow hole, 4... Swinging member, 5... Oil groove, 6... Oil discharge passage, 8... Inner peripheral surface of oil discharge passage. side opening end,
G...a certain distance.
Claims (1)
ると共に半径方向に貫通する油流出孔を備えた固
定軸と、この固定軸の外周に揺動自在に嵌合さ
れ、且つ前記油流出孔に常時連通するように内周
面に形成されたオイル溝及び内周面に開口端を有
する油吐出通路を備えた揺動部材とからなる給油
装置において、前記油吐出通路の内周面側開口端
を、前記オイル溝に対しその幅方向に一定の距離
隔たつた位置に配設したことを特徴とする給油装
置。 a fixed shaft having an oil feed hole penetrating through the shaft center and an oil spill hole communicating with the oil feed hole and penetrating in the radial direction; In an oil supply device comprising an oil groove formed on an inner circumferential surface so as to constantly communicate with a hole, and a swinging member equipped with an oil discharge passage having an open end on the inner circumference, the inner circumference side of the oil discharge passage An oil supply device characterized in that an opening end is arranged at a position spaced apart from the oil groove by a certain distance in the width direction thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP214583U JPS59107910U (en) | 1983-01-10 | 1983-01-10 | Refueling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP214583U JPS59107910U (en) | 1983-01-10 | 1983-01-10 | Refueling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59107910U JPS59107910U (en) | 1984-07-20 |
| JPS6229617Y2 true JPS6229617Y2 (en) | 1987-07-30 |
Family
ID=30133834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP214583U Granted JPS59107910U (en) | 1983-01-10 | 1983-01-10 | Refueling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59107910U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59148406U (en) * | 1983-03-24 | 1984-10-04 | 日産自動車株式会社 | Valve gear lubrication mechanism |
| JP2580163Y2 (en) * | 1993-06-21 | 1998-09-03 | ヤンマーディーゼル株式会社 | Lubrication structure of valve gear |
-
1983
- 1983-01-10 JP JP214583U patent/JPS59107910U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59107910U (en) | 1984-07-20 |
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