JP2003329092A - Guide device for winding power transmission member - Google Patents
Guide device for winding power transmission memberInfo
- Publication number
- JP2003329092A JP2003329092A JP2003170377A JP2003170377A JP2003329092A JP 2003329092 A JP2003329092 A JP 2003329092A JP 2003170377 A JP2003170377 A JP 2003170377A JP 2003170377 A JP2003170377 A JP 2003170377A JP 2003329092 A JP2003329092 A JP 2003329092A
- Authority
- JP
- Japan
- Prior art keywords
- sliding contact
- oil supply
- power transmission
- lubricating oil
- guide device
- 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.)
- Granted
Links
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本出願発明は、チェーン伝動
装置等の巻掛式動力伝達装置に用いられる動力伝達部材
のガイド装置、特にその潤滑手段に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide device for a power transmission member used in a winding type power transmission device such as a chain transmission device, and more particularly to a lubricating means for the guide device.
【０００２】[0002]
【従来の技術】４ストロークサイクル内燃機関の動弁系
に適用される従来のチェーン伝動装置として、例えば特
開２０００−９７０４２号公報に示されたものがある。
図１３はその模式図、図１４は図１３中のテンショナー
アームの正面図、図１５は同じく平面図、図１６は図１
４のXVI−XVI矢視断面図、図１７は図１４のXVII−XVII
矢視断面図である。2. Description of the Related Art As a conventional chain transmission applied to a valve train of a four-stroke cycle internal combustion engine, for example, there is one disclosed in Japanese Patent Laid-Open No. 2000-97042.
13 is a schematic view thereof, FIG. 14 is a front view of the tensioner arm in FIG. 13, FIG. 15 is a plan view of the same, and FIG. 16 is FIG.
XVI-XVI cross-sectional view of FIG. 4, FIG. 17 is XVII-XVII of FIG.
FIG.
【０００３】まず図１３に示すように、このチェーン伝
動装置は、クランク軸に取付けられた第１のスプロケッ
ト03と、カム軸に取付けられた第２，第３のスプロケッ
ト06，07と、これら３個のスプロケット03，06，07に捲
掛けられたチェーン08とを備えていて、クランク軸の回
転をカム軸に伝達するようになっている。First, as shown in FIG. 13, this chain transmission has a first sprocket 03 attached to a crankshaft, second and third sprockets 06 and 07 attached to a camshaft, and these three. It is provided with a chain 08 wound around individual sprockets 03, 06, 07, and is adapted to transmit the rotation of the crankshaft to the camshaft.
【０００４】チェーン08の弛み側スパンに配置されたチ
ェーンテンショナ010は、アーム020と、同アーム020に
装着され、チェーン08が摺動するガイドシュー030を有
している。アーム020はその一端が枢軸021により回動自
在に枢支され、他端（自由端）には油圧テンショナー01
5のピストン015ａが当接している。A chain tensioner 010 arranged on the slack side span of the chain 08 has an arm 020 and a guide shoe 030 mounted on the arm 020 and on which the chain 08 slides. One end of the arm 020 is pivotally supported by a pivot shaft 021 and the other end (free end) of the arm 020 is a hydraulic tensioner 01.
The piston 015a of 5 is in contact.
【０００５】アーム020は図１４，図１５に示されるよ
うに、一端に枢軸021（図１３）が挿入されるピン穴023
が設けられ、他端には断面長円の貫通孔（導入孔）020
ａが形成されている。As shown in FIGS. 14 and 15, the arm 020 has a pin hole 023 into which the pivot 021 (FIG. 13) is inserted at one end.
Is provided and the other end has a through hole (introduction hole) 020 having an oval cross section.
a is formed.
【０００６】アーム020とガイドシュー030との合わせ面
020ｂは、ほぼ円弧状に延びており、図１６，図１７に
示されるように、この合わせ面020ｂに沿ってアーム020
にほぼ半円形断面の油溝020ｃが形成されている。この
油溝020ｃの一端は導入孔020ａと連通しており、他端は
ピン穴023の上方に達している。A mating surface between the arm 020 and the guide shoe 030
020b extends substantially in an arc shape, and as shown in FIGS. 16 and 17, the arm 020b extends along the mating surface 020b.
An oil groove 020c having a substantially semicircular cross section is formed in the. One end of this oil groove 020c communicates with the introduction hole 020a, and the other end reaches above the pin hole 023.
【０００７】長手方向にほぼ円弧状に延びるガイドシュ
ー030には、複数（図示例では２個）の貫通孔030ａが形
成されている。ガイドシュー030をアーム020に組付けた
時には、これらの貫通孔030ａはアーム020の油溝020ｃ
と連通するようになっている。またガイドシュー030の
上面には、図１６，図１７に示されるように、チェーン
08の走行をガイドする溝部030ｂが形成されている。A plurality of (two in the illustrated example) through holes 030a are formed in the guide shoe 030 extending in a substantially arcuate shape in the longitudinal direction. When the guide shoe 030 is assembled to the arm 020, these through holes 030a are located in the oil groove 020c of the arm 020.
It is designed to communicate with. On the upper surface of the guide shoe 030, as shown in FIG. 16 and FIG.
A groove 030b for guiding the travel of 08 is formed.
【０００８】油圧テンショナー015のピストン015ａには
孔（図示せず）が形成されており、図示しない油圧供給
源からの潤滑油がこの孔から供給されるようになってい
る。A hole (not shown) is formed in the piston 015a of the hydraulic tensioner 015, and lubricating oil from a hydraulic pressure supply source (not shown) is supplied from this hole.
【０００９】このようなチェーン伝動装置において、第
１のスプロケット03（図１３）が回転してチェーン08が
矢印の方向に走行するとき、油圧テンショナー015が駆
動されることにより、ピストン015ａがアーム020の先端
を押圧する。これによりアーム020が枢軸021の周りに揺
動して、ガイドシュー030がチェーン08を押圧し、その
結果チェーン08に適切な緊張力が作用する。In such a chain transmission, when the first sprocket 03 (FIG. 13) rotates and the chain 08 travels in the direction of the arrow, the hydraulic tensioner 015 is driven to cause the piston 015a to move to the arm 020. Press the tip of. As a result, the arm 020 swings around the pivot 021, the guide shoe 030 presses the chain 08, and as a result, an appropriate tension acts on the chain 08.
【００１０】このとき、油圧テンショナー015のピスト
ン015ａに形成された図示しない孔からは、図示しない
油圧供給源から供給された潤滑油が吹出している。吹出
した潤滑油は、アーム020の導入孔020ａを通って油溝02
0ｃ内に流入する。油溝020ｃ内に流入した潤滑油は、油
溝020ｃを通ってアーム020のピン穴023側に移動すると
ともに、油溝020ｃと連通するガイドシュー030の各貫通
孔030ａに流入し、各貫通孔030ａからガイドシュー030
の外面に流出する。At this time, the lubricating oil supplied from the hydraulic pressure supply source (not shown) is blowing out from the hole (not shown) formed in the piston 015a of the hydraulic tensioner 015. The lubricating oil that has blown out passes through the introduction hole 020a of the arm 020 and the oil groove 02
It flows into 0c. The lubricating oil that has flowed into the oil groove 020c moves to the pin hole 023 side of the arm 020 through the oil groove 020c, and also flows into each through hole 030a of the guide shoe 030 that communicates with the oil groove 020c. Guide shoe 030 from 030a
Spills on the outside.
【００１１】一方チェーン08は、ガイドシュー030上を
矢印（図１３）の方向に走行している。このとき、各貫
通孔030ａから流出している潤滑油が、ガイドシュー030
とチェーン08との間に供給される。On the other hand, the chain 08 runs on the guide shoe 030 in the direction of the arrow (FIG. 13). At this time, the lubricating oil flowing out from each through hole 030a is absorbed by the guide shoe 030.
And between the chain 08 and.
【００１２】[0012]
【発明が解決しようとする課題】前記従来のガイド装置
は、アーム020とガイドシュー030の合わせ面020ｂに油
溝020ｃを設け、アーム020側にはその油溝020ｃに連通
する導入孔020ａ、ガイドシュー030側には同様油溝020
ｃに連通する複数の貫通孔030ａを設けるので、構造が
複雑になり、高価であった。また導入孔020ａがチェー
ン08の回動方向下流端に設けられているので、ガイドシ
ュー030の表面へ給油が開始されるまでに時間がかかっ
ていた。In the conventional guide device, an oil groove 020c is provided on the mating surface 020b of the arm 020 and the guide shoe 030, and the arm 020 side has an introduction hole 020a communicating with the oil groove 020c and a guide. Oil groove 020 on the shoe 030 side
Since a plurality of through holes 030a communicating with c are provided, the structure is complicated and expensive. Further, since the introduction hole 020a is provided at the downstream end of the chain 08 in the rotating direction, it takes a long time to start refueling the surface of the guide shoe 030.
【００１３】[0013]
【課題を解決するための手段および効果】前記従来の課
題を解決するために、請求項１の発明は、巻掛式の動力
伝達部材に正面が接触する摺接部材と、該摺接部材の背
面を支持し該摺接部材と一体に形成された支持部材と、
上記摺接部材の接触面の長手方向にわたって設けられた
潤滑油の給油溝と、上記摺接部材の、上記動力伝達部材
との接触開始側である、回動方向上流側に配され、上記
摺接部材の接触面に潤滑油を供給する給油手段と、該給
油手段を上記給油溝に連通する連通路とを備えた巻掛式
動力伝達部材のガイド装置において、上記給油手段は、
上記支持部材の背面に配され上記ガイド装置を弾性付勢
する油圧テンショナであって、該油圧テンショナのピス
トン内に設けられた油路と、上記摺接部材の接触面に設
けられた給油溝とが、上記支持部材を貫通する潤滑油通
路によって直接連通していることを特徴とするものであ
る。In order to solve the above-mentioned conventional problems, a first aspect of the present invention is directed to a sliding contact member whose front surface comes into contact with a winding type power transmission member, and a sliding contact member of the sliding contact member. A support member that supports the back surface and is integrally formed with the sliding contact member;
The lubricating oil supply groove provided along the longitudinal direction of the contact surface of the sliding contact member and the sliding contact member are arranged on the upstream side in the rotation direction, which is the contact start side of the sliding contact member with the power transmission member. In a guide device for a winding type power transmission member, which includes an oil supply means for supplying lubricating oil to the contact surface of the contact member, and a communication passage communicating the oil supply means with the oil supply groove, the oil supply means comprises:
A hydraulic tensioner arranged on the back surface of the support member for elastically biasing the guide device, an oil passage provided in a piston of the hydraulic tensioner, and an oil supply groove provided on a contact surface of the sliding contact member. Are directly communicated with each other through a lubricating oil passage that penetrates the support member.
【００１４】請求項１の発明は上記のとおり構成され、
給油手段が摺接部材と動力伝達部材の接触面の回動方向
上流側に設けられているので、動力伝達部材の回動によ
り潤滑油が摺接部材の表面を引張られる。したがって、
簡単な構造で、摺接部材の長手方向にわたって潤滑油を
供給することができ、動力伝達部材に働く摩擦力を減少
させ、その駆動を円滑にする。The invention of claim 1 is configured as described above,
Since the oil supply means is provided on the upstream side of the contact surface of the sliding contact member and the power transmission member in the rotational direction, the rotation of the power transmission member pulls the lubricating oil on the surface of the sliding contact member. Therefore,
With a simple structure, the lubricating oil can be supplied in the longitudinal direction of the sliding contact member, the frictional force acting on the power transmission member is reduced, and the driving thereof is smoothed.
【００１５】また、摺接部材の表面に給油溝を設け、そ
こに潤滑油を供給するので、摺接部材の表面と動力伝達
部材との摺動による潤滑油の飛散を抑制することができ
る。さらに、給油溝を設けたことで動力伝達部材と摺接
部材との接触面積が小さくなるので、両者の間の摩擦力
が低減し、摩耗が軽減される。Further, since the oil supply groove is provided on the surface of the sliding contact member and the lubricating oil is supplied thereto, the scattering of the lubricating oil due to the sliding of the surface of the sliding contact member and the power transmission member can be suppressed. Further, since the contact area between the power transmission member and the sliding contact member is reduced by providing the oil supply groove, the frictional force between the two is reduced and wear is reduced.
【００１６】また、油圧テンショナのピストン内に設け
られた油路と、接触面に設けられた給油溝とが、支持部
材を貫通する潤滑油通路により直接連通しているので、
潤滑油通路を最短にすることができる。したがって、動
力伝達部材の走行開始に伴ない、油圧供給源から油圧テ
ンショナへ潤滑油が供給されると同時に、接触面への給
油も開始されるので、走行開始時の動力伝達部材との摩
擦が軽減されて、動力伝達部材と摺接部材の磨耗が軽減
され、かつ安定した動力伝達が可能となる。Further, since the oil passage provided in the piston of the hydraulic tensioner and the oil supply groove provided in the contact surface are directly communicated with each other by the lubricating oil passage penetrating the support member,
The lubricating oil passage can be minimized. Therefore, as the power transmission member starts traveling, the lubricating oil is supplied from the hydraulic pressure supply source to the hydraulic tensioner, and at the same time, the lubrication of the contact surface is started, so that the friction with the power transmission member at the start of traveling is reduced. As a result, wear of the power transmission member and the sliding contact member is reduced, and stable power transmission is possible.
【００１７】次に請求項２の発明は、巻掛式の動力伝達
部材に正面が接触する摺接部材と、該摺接部材の背面を
支持し該摺接部材と一体に形成された支持部材と、上記
摺接部材の接触面の長手方向にわたって設けられた複数
の潤滑油の給油溝と、上記摺接部材の、上記動力伝達部
材との接触開始側である、回動方向上流側に配され、上
記摺接部材の接触面に潤滑油を供給する給油手段と、該
給油手段を上記摺接部材の上記複数の給油溝間に位置す
る接触面に連通する連通路とを備えた巻掛式動力伝達部
材のガイド装置において、上記給油手段は、上記支持部
材の背面に配され上記ガイド装置を弾性付勢する油圧テ
ンショナであって、該油圧テンショナのピストン内に設
けられた油路と、上記摺接部材の上記複数の給油溝間に
位置する接触面とが、上記支持部材を貫通する潤滑油通
路によって直接連通していることを特徴とするものであ
る。Next, a second aspect of the present invention is directed to a sliding contact member whose front surface comes into contact with a winding type power transmission member, and a supporting member which supports the rear surface of the sliding contact member and is formed integrally with the sliding contact member. And a plurality of lubricating oil supply grooves provided in the longitudinal direction of the contact surface of the sliding contact member and the sliding contact member on the upstream side in the rotation direction, which is the contact start side with the power transmission member. And a winding passage provided with an oil supply means for supplying lubricating oil to the contact surface of the sliding contact member, and a communication passage communicating the oil supply means with the contact surface located between the plurality of oil supply grooves of the sliding contact member. In the guide device for a hydraulic power transmission member, the oil supply means is a hydraulic tensioner that is arranged on the back surface of the support member and elastically biases the guide device, and an oil passage provided in a piston of the hydraulic tensioner, A contact surface located between the plurality of oil supply grooves of the sliding contact member; , And is characterized in that directly communicates with the lubricating oil passage that penetrates the support member.
【００１８】請求項２の発明は上記のとおり構成されて
いるので、前記請求項１記載の発明と同様の効果が得ら
れるほか、給油溝間に位置する接触面に供給された潤滑
油は、その両側の給油溝に導かれ、したがって摺動部材
の表面と動力伝達部材との摺動による潤滑油の飛散を抑
制することができる。Since the invention of claim 2 is configured as described above, the same effect as that of the invention of claim 1 can be obtained, and the lubricating oil supplied to the contact surface located between the oil supply grooves is: It is possible to prevent the lubricating oil from being scattered due to being guided to the oil supply grooves on both sides of the sliding member and thus sliding on the surface of the sliding member and the power transmission member.
【００１９】次に請求項３の発明は、上記請求項２記載
の発明において、上記複数の給油溝のうち２条が上記摺
接部材の接触面の両側縁に沿って設けられたことを特徴
とするものである。A third aspect of the present invention is characterized in that, in the second aspect of the invention, two of the plurality of oil supply grooves are provided along both side edges of the contact surface of the sliding contact member. It is what
【００２０】請求項３の発明は上記のとおり構成され、
摺動部材の接触面の両側縁部に沿って給油溝が設けられ
ているので、動力伝達部材が摺接部材の一方に偏って動
力伝達部材の側縁部下端が摺動部材の側縁の突出部に接
触した時でも、摺動部材の側縁に沿って潤滑油が流れて
おり、したがってこの部分の磨耗が軽減される。The invention of claim 3 is configured as described above,
Since the oil supply grooves are provided along both side edges of the contact surface of the sliding member, the power transmission member is biased to one of the sliding contact members, and the lower end of the side edge of the power transmission member corresponds to the side edge of the sliding member. Even when it comes into contact with the protruding portion, the lubricating oil flows along the side edge of the sliding member, so that the wear of this portion is reduced.
【００２１】また請求項４の発明は、捲掛式の動力伝達
部材に正面が接触する摺接部材と、該摺接部材の背面を
支持し該摺接部材と一体に形成された支持部材と、上記
摺接部材の接触面の長手方向にわたって設けられた潤滑
油の給油溝と、上記摺接部材の、上記動力伝達部材との
接触開始側である、回動方向上流側に配され、上記摺接
部材の接触面に潤滑油を供給する給油手段と、該給油手
段を上記給油溝に連通する連通路と、上記給油溝に設け
られ上記給油手段から供給された潤滑油を保持する保持
機構とを備えた巻掛式動力伝達部材のガイド装置におい
て、上記給油手段は、上記支持部材の背面に配され上記
ガイド装置を弾性付勢する油圧テンショナであって、該
油圧テンショナのピストン内に設けられた油路と、上記
摺接部材の接触面に設けられた給油溝とが、上記支持部
材を貫通する潤滑油通路によって直接連通していること
を特徴とするものである。According to a fourth aspect of the present invention, there is provided a sliding contact member whose front surface comes into contact with the winding type power transmission member, and a supporting member which supports a rear surface of the sliding contact member and is formed integrally with the sliding contact member. A lubricating oil supply groove provided in a longitudinal direction of a contact surface of the sliding contact member and a contact start side of the sliding contact member with the power transmission member. Lubricating means for supplying lubricating oil to the contact surface of the sliding contact member, a communication passage for communicating the lubricating means with the oil supply groove, and a holding mechanism provided in the oil supply groove for holding the lubricating oil supplied from the oil supply means. In the guide device for a wrapping type power transmission member, the oil supply means is a hydraulic tensioner that is disposed on the back surface of the support member and elastically biases the guide device, and is provided in the piston of the hydraulic tensioner. Contact surface between the oil passage and the sliding contact member And provided with oil grooves, and is characterized in that directly communicates with the lubricating oil passage that penetrates the support member.
【００２２】請求項４の発明は上記のとおり構成され、
給油手段から供給された潤滑油を保持する保持機構を給
油溝内に設けたので、常に一定量の潤滑油が給油溝内に
保持される。したがって、運転開始時（動力伝達部材が
回動を始めた時）にも動力伝達部材に十分な潤滑油を供
給することができるから、動力伝達部材を円滑に回動さ
せるとともに、摩耗・振動等を抑制することができる。
その他、前記請求項１記載の発明と同様の効果が奏せら
れる。The invention of claim 4 is configured as described above,
Since the holding mechanism for holding the lubricating oil supplied from the oil supply means is provided in the oil supply groove, a certain amount of lubricating oil is always held in the oil supply groove. Therefore, sufficient lubricating oil can be supplied to the power transmission member even at the start of operation (when the power transmission member starts to rotate), so that the power transmission member can be smoothly rotated and wear, vibration, etc. Can be suppressed.
In addition, the same effect as the invention according to the first aspect can be obtained.
【００２３】さらに請求項５の発明は、上記請求項４の
発明において、上記保持機構が上記給油溝内を仕切る少
なくとも１つの仕切壁であって、高さが上記給油溝の深
さよりも低いことを特徴とするものである。Further, in the invention of claim 5 according to the invention of claim 4, the holding mechanism is at least one partition wall for partitioning the inside of the oil supply groove, and the height thereof is lower than the depth of the oil supply groove. It is characterized by.
【００２４】請求項５の発明では、上記のように給油溝
を仕切る仕切壁を給油溝内に設けることによって、潤滑
油を保持するだけでなく、給油溝部の剛性を高めること
ができる。したがって、給油溝の側壁が動力伝達部材と
の接触により、給油溝内へ弯曲してくるのを防止するこ
とができる。その結果、安定して潤滑油を供給でき、さ
らに摺接部材の劣化を抑制できる。According to the fifth aspect of the present invention, by providing the partition wall for partitioning the oil supply groove in the oil supply groove as described above, not only the lubricating oil can be retained but also the rigidity of the oil supply groove portion can be increased. Therefore, it is possible to prevent the side wall of the oil supply groove from bending into the oil supply groove due to contact with the power transmission member. As a result, the lubricating oil can be stably supplied, and the deterioration of the sliding contact member can be suppressed.
【００２５】請求項５の発明ではまた、仕切壁の高さが
給油溝の深さよりも低くなっているので、動力伝達部材
が仕切壁に接触せず、したがって磨耗が防止され、かつ
騒音を低減できる。加えて、潤滑油の給油溝内移動を阻
害することなく、潤滑油を給油溝内に保持できる。According to the invention of claim 5, since the height of the partition wall is lower than the depth of the oil supply groove, the power transmission member does not come into contact with the partition wall, and therefore wear is prevented and noise is reduced. it can. In addition, the lubricating oil can be retained in the oil supply groove without hindering the movement of the lubricating oil in the oil supply groove.
【００２６】さらにまた請求項６の発明は、上記請求項
１ないし請求項５いずれか記載の発明において、上記給
油溝が、少なくとも上記摺接部材と上記動力伝達部材と
の接触面の上記回動方向上流端まで延びており、かつ端
部が閉じていることを特徴とするものである。According to a sixth aspect of the present invention, in the invention according to any one of the first to fifth aspects, the oil supply groove has at least the contact surface between the sliding contact member and the power transmission member. It is characterized in that it extends to the upstream end in the direction and the end is closed.
【００２７】請求項６の発明は上記のとおり構成されて
いるので、動力伝達部材の停止時にも給油溝内に余分に
潤滑油を保持できるため、動力伝達部材の回転開始時点
で、その動力伝達部材に確実に潤滑油を供給することが
できる。したがって、長時間作動を停止していた場合で
も、動力伝達部材を滑らかに回動させることができ、ま
た摩耗も抑制される。Since the invention of claim 6 is configured as described above, extra lubricating oil can be retained in the oil supply groove even when the power transmission member is stopped. Lubricating oil can be reliably supplied to the member. Therefore, even if the operation has been stopped for a long time, the power transmission member can be smoothly rotated, and wear is suppressed.
【００２８】[0028]
【発明の実施の形態１】図１は本発明の一実施形態にお
けるチェーンテンショナーの先端部を一部切欠いで示す
拡大側面図、図２は図１のII−II矢視正面図、図３は図
１および図２のIII−III矢視断面図をチェーンとともに
描いた図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an enlarged side view of the chain tensioner according to an embodiment of the present invention with a tip portion partially cut away, FIG. 2 is a front view taken along the line II-II of FIG. 1, and FIG. It is the figure which drew the III-III arrow sectional drawing of FIG. 1 and FIG. 2 with a chain.
【００２９】これらの図において、１は巻掛式動力伝達
部材としてのチェーンであって、多数のリンクプレート
１ａの列を層状に重ね合わせ、それらをピン１ｂで無端
状に連結して形成されている。２は正面が上記チェーン
１に接触する摺動部材としてのガイドシューである。こ
のガイドシュー２の背面には支持部材としてのチェーン
テンショナー本体３がガイドシュー２と一体に形成され
ている。In these figures, 1 is a chain as a winding type power transmission member, which is formed by stacking a number of rows of link plates 1a in layers and connecting them endlessly with pins 1b. There is. Reference numeral 2 is a guide shoe as a sliding member whose front surface contacts the chain 1. On the back surface of the guide shoe 2, a chain tensioner main body 3 as a supporting member is formed integrally with the guide shoe 2.
【００３０】本実施形態では、ガイドシュー２の表面の
長手方向にわたって、潤滑油の給油溝６ａが設けられて
いる。この給油溝６ａの幅は、チェーン１がガイドシュ
ー２の片側にそれた時に、チェーン１の側縁が給油溝に
落込まない程度にする。In this embodiment, a lubricating oil supply groove 6a is provided in the longitudinal direction of the surface of the guide shoe 2. The width of the oil supply groove 6a is such that the side edge of the chain 1 does not fall into the oil supply groove when the chain 1 is deflected to one side of the guide shoe 2.
【００３１】一方、チェーン回動方向上流側のチェーン
テンショナ−本体３背後には、ガイドシュー２表面に潤
滑油を供給する給油手段として、図示しない油圧テンシ
ョナーのピストンが配されており、該ピストン内に油路
が形成されている。そして、その油路と上記給油溝６ａ
とを直接連通する連通路として潤滑油通路４が設けら
れ、ガイドシュー２のチェーン回動方向上流側の給油溝
６ａ内に開口している。On the other hand, behind the chain tensioner main body 3 on the upstream side in the chain rotating direction, a piston of a hydraulic tensioner (not shown) is arranged as an oil supply means for supplying lubricating oil to the surface of the guide shoe 2, and inside the piston. An oil passage is formed in. Then, the oil passage and the oil supply groove 6a
A lubricating oil passage 4 is provided as a communication passage that directly communicates with and, and opens into an oil supply groove 6a on the upstream side of the guide shoe 2 in the chain rotation direction.
【００３２】ここでチェーン回動方向上流側とは、チェ
ーン１が近付いて来てガイドシュー２と接触を開始する
側であり、チェーン回動方向下流側とは、チェーン１が
ガイドシュー２から離脱して去ってゆく側をいう（以下
同じ）。Here, the upstream side in the chain rotation direction is the side where the chain 1 approaches and starts contact with the guide shoe 2, and the downstream side in the chain rotation direction is the chain 1 separated from the guide shoe 2. And the side that goes away (same below).
【００３３】図示しないスプロケットに巻掛けられて回
送されるチェーン１はチェーンテンショナーのガイドシ
ュー２によってガイド・押圧される。一方、図示しない
オイルポンプから圧送されてきた潤滑油は、チェーンテ
ンショナー本体３の背後の図示しない油圧テンショナー
のピストンから潤滑油通路４を経て、ガイドシュー２の
正面の給油溝６ａ内に供給される。この潤滑油は給油溝
６ａを通って、ガイドシュー２の長手方向にわたって移
動する。こうしてチェーン１とガイドシュー２の接触面
全体が潤滑される。The chain 1 wound around a sprocket (not shown) and fed is guided and pressed by the guide shoe 2 of the chain tensioner. On the other hand, the lubricating oil pumped from the oil pump (not shown) is supplied from the piston of the hydraulic tensioner (not shown) behind the chain tensioner body 3 through the lubricating oil passage 4 into the oil supply groove 6a in front of the guide shoe 2. . This lubricating oil moves along the longitudinal direction of the guide shoe 2 through the oil supply groove 6a. In this way, the entire contact surface between the chain 1 and the guide shoe 2 is lubricated.
【００３４】この場合、チェーン１がサイレントチェー
ンのように複数枚のリンクプレート１ａが連結されたガ
イドシュー２との接触面が平面に形成されていても、給
油溝６ａを設けたことにより、チェーン１とガイドシュ
ー２との接触面積が小さくなるので、チェーン１に働く
摩擦力を低減させることができる。また、チェーン１が
下方から上方に向かって回送される位置であっても、回
送方向に潤滑油が引張られるので、ガイドシュー２の全
長にわたって潤滑油を送給することができる。In this case, even if the chain 1 has a flat contact surface with the guide shoe 2 to which a plurality of link plates 1a are connected as in the case of a silent chain, by providing the oil supply groove 6a, the chain is Since the contact area between the guide shoe 1 and the guide shoe 2 is small, the frictional force acting on the chain 1 can be reduced. Further, even at the position where the chain 1 is fed upward from below, since the lubricating oil is pulled in the feeding direction, the lubricating oil can be fed over the entire length of the guide shoe 2.
【００３５】本実施形態ではまた、ガイドシュー２表面
の給油溝６ａに潤滑油を直接供給するので、ガイドシュ
ー２表面とチェーン１との摺動による潤滑油の飛散を抑
制することができる。Further, in this embodiment, since the lubricating oil is directly supplied to the oil supply groove 6a on the surface of the guide shoe 2, it is possible to suppress the scattering of the lubricating oil due to the sliding of the surface of the guide shoe 2 and the chain 1.
【００３６】また、油圧テンショナのピストン内に設け
られた油路とガイドシュー２に設けられた給油溝６ａと
が直接連通しているので、潤滑油通路４を最短構成とす
ることができる。したがって、例えば本実施形態を内燃
機関動弁系のチェーン伝動装置に適用した場合、内燃機
関の始動（チェーンの走行開始）に伴ない、油圧供給源
から油圧テンショナへ潤滑油が供給されると同時に、ガ
イドシュー２への給油も開始されるので、始動時のチェ
ーン１との摩擦が軽減されて、チェーン１とガイドシュ
ー２の磨耗が軽減され、かつ安定した動力伝達が可能と
なる。Further, since the oil passage provided in the piston of the hydraulic tensioner and the oil supply groove 6a provided in the guide shoe 2 are directly communicated with each other, the lubricating oil passage 4 can have the shortest configuration. Therefore, for example, when the present embodiment is applied to a chain transmission device of an internal combustion engine valve train, the lubricating oil is supplied from the hydraulic power supply source to the hydraulic tensioner at the same time as the internal combustion engine is started (the running of the chain is started). Since oil supply to the guide shoes 2 is also started, friction with the chain 1 at the time of starting is reduced, wear of the chain 1 and the guide shoes 2 is reduced, and stable power transmission becomes possible.
【００３７】このように本実施形態では、簡単な構造で
ガイドシュー２の全長にわたって潤滑油を供給すること
ができ、チェーン１に働らく摩擦力を減少させ、その駆
動を円滑にする。As described above, in this embodiment, the lubricating oil can be supplied over the entire length of the guide shoe 2 with a simple structure, the frictional force acting on the chain 1 is reduced, and the driving thereof is smoothed.
【００３８】[0038]
【発明の実施の形態２】図４は本発明の第２の実施形態
におけるチェーンテンショナーの先端部を示す正面図、
図５は図４のＶ−Ｖ矢視断面図をチェーンとともに描い
た図である。本実施形態では、ガイドシュー２の正面
（接触面）の両側縁に沿って２条の給油溝６ｂ，６ｂが
全長にわたって設けられる。Second Embodiment FIG. 4 is a front view showing a tip portion of a chain tensioner according to a second embodiment of the present invention,
FIG. 5 is a view showing a cross-sectional view taken along the line VV of FIG. In the present embodiment, two oil supply grooves 6b, 6b are provided over the entire length along both side edges of the front surface (contact surface) of the guide shoe 2.
【００３９】潤滑油通路４を経てガイドシュー２の表面
に供給された潤滑油は、これらの給油溝６ｂ，６ｂに流
れ込み、ガイドシュー２の全長にわたって移動する。こ
うして、チェーン１とガイドシュー２の接触面全体が潤
滑される。本実施形態でも、給油溝６ｂ，６ｂを設けた
ことにより、チェーン１とガイドシュー２との接触面積
が小さくなるので、チェーン１に働く摩擦力が低減す
る。また、図５に図示されているようにチェーン１がガ
イドシュー２の一方に偏ってチェーン１の側部下端がガ
イドシュー２の側縁の突出部に接触した時でも、ガイド
シュー２の側縁に沿って潤滑油が流れるので、この部分
の摩耗が軽減される。The lubricating oil supplied to the surface of the guide shoe 2 through the lubricating oil passage 4 flows into the oil supply grooves 6b, 6b and moves over the entire length of the guide shoe 2. In this way, the entire contact surface between the chain 1 and the guide shoe 2 is lubricated. Also in this embodiment, since the contact area between the chain 1 and the guide shoe 2 is reduced by providing the oil supply grooves 6b, 6b, the frictional force acting on the chain 1 is reduced. Even when the chain 1 is biased toward one side of the guide shoe 2 and the lower end of the side portion of the chain 1 comes into contact with the protruding portion of the side edge of the guide shoe 2 as shown in FIG. Since the lubricating oil flows along, the wear of this portion is reduced.
【００４０】さらに本実施形態では、チェーン１の両側
縁のコーナー部分に対応するガイドシュー２の表面に給
油溝６ｂが設けられているので、チェーン１が回動中に
傾いた場合でも、チェーンコーナー部によるガイドシュ
ー２表面の片減りが防止される。加えて、接触面に供給
された潤滑油のうち、チェーン１表面を潤滑した後の余
りの分が、両側の給油溝６ｂへ流れ込むので、チェーン
１の回動により潤滑油が周囲に飛散するのを抑制するこ
とができる。Further, in this embodiment, since the oil supply groove 6b is provided on the surface of the guide shoe 2 corresponding to the corner portions on both side edges of the chain 1, even if the chain 1 is tilted during rotation, the chain corner The unevenness of the surface of the guide shoe 2 due to the portion is prevented. In addition, since the surplus of the lubricating oil supplied to the contact surface after lubricating the surface of the chain 1 flows into the oil supply grooves 6b on both sides, the lubricating oil is scattered around by the rotation of the chain 1. Can be suppressed.
【００４１】[0041]
【発明の実施の形態３】図６は本発明の第３の実施形態
におけるチェーンテンショナーの先端部を示す正面図で
ある。本実施形態では、ガイドシュー２の表面にジグザ
グ状の給油溝６ｃが設けられる。[Third Embodiment of the Invention] FIG. 6 is a front view showing a tip end portion of a chain tensioner according to a third embodiment of the present invention. In the present embodiment, a zigzag-shaped oil supply groove 6c is provided on the surface of the guide shoe 2.
【００４２】これによって潤滑油がガイドシュー２の全
幅にゆきわたるので、潤滑油の前剪抵抗はさらに減少す
る。また給油溝がジグザグに進んでゆくことになるの
で、チェーンが片側に張り付くのを防ぐことができる。As a result, the lubricating oil spreads over the entire width of the guide shoe 2, so that the pre-shear resistance of the lubricating oil is further reduced. In addition, since the oil supply groove moves in a zigzag manner, it is possible to prevent the chain from sticking to one side.
【００４３】図６に示す例では、ガイドシュー２の全長
にわたってジグザグ状の給油溝６ｄが設けられている
が、例えば図７に示すように、給油溝６ｄの終端を前記
第１の実施形態と同様にガイドシュー２の中央線に沿わ
せる等、種々の変形が考えられる。In the example shown in FIG. 6, a zigzag-shaped oil supply groove 6d is provided over the entire length of the guide shoe 2. For example, as shown in FIG. 7, the end of the oil supply groove 6d is the same as that of the first embodiment. Similarly, various modifications are possible such as along the center line of the guide shoe 2.
【００４４】[0044]
【発明の実施の形態４】図８は本発明の第４の実施形態
におけるチェーンテンショナーの先端部を示す正面図で
ある。この実施形態では、ガイドシュー２の長手方向に
対して同方向に傾斜した給油溝６ｅが設けられる。Fourth Embodiment of the Invention FIG. 8 is a front view showing a tip end portion of a chain tensioner according to a fourth embodiment of the present invention. In this embodiment, an oil supply groove 6e that is inclined in the same direction as the longitudinal direction of the guide shoe 2 is provided.
【００４５】この実施形態はチェーンを意識的に片側に
寄せたい場合に実施される。チェーンスプロケットの片
持ちにより、例えば左向きの力が発生した場合、これを
右側への反力によって相殺する。またチェーンが左側に
寄った場合、潤滑油も左側へ導かれるので、ガイドシュ
ー２の左側部の摩擦、摩耗が軽減される。This embodiment is carried out when it is desired to intentionally move the chain to one side. If, for example, a leftward force is generated by cantilevering the chain sprocket, this is offset by a reaction force to the right. Further, when the chain moves to the left side, the lubricating oil is also guided to the left side, so that the friction and wear of the left side portion of the guide shoe 2 are reduced.
【００４６】[0046]
【発明の実施の形態５】図９は本発明の第５の実施形態
におけるチェーンテンショナーの先端部を示す正面図で
ある。本実施形態では、ガイドシュー２とチェーン１と
の接触開始位置、すなわちガイドシュー２とチェーン１
との接触面のチェーン回動方向上流端７よりも上流側の
ガイドシュー２の幅が他の部分よりも広くなっている。
また、給油溝６ｆは、潤滑油通路４からその接触開始位
置７まで上流方向に向かって延びており、かつその端部
が閉じられている。Fifth Embodiment of the Invention FIG. 9 is a front view showing a tip end portion of a chain tensioner according to a fifth embodiment of the present invention. In the present embodiment, the contact start position between the guide shoe 2 and the chain 1, that is, the guide shoe 2 and the chain 1
The width of the guide shoe 2 on the upstream side of the upstream end 7 of the contact surface with the chain rotation direction is wider than the other portions.
Further, the oil supply groove 6f extends from the lubricating oil passage 4 to the contact start position 7 in the upstream direction, and its end is closed.
【００４７】上記のように本実施形態では、接触開始位
置７よりも上流側のガイドシュー２の幅が他の部分より
も広く、接触面積が大きくなっているので、チェーン１
を安定してガイドでき、またガイドシュー２の剛性が高
まるので、チェーン１との接触による衝撃を緩和するこ
とができる。したがってまた、チェーン１の回動方向下
流側にチェーンテンショナー本体３の支点（枢軸）があ
る場合でも、ガイドシュー２が振動しチェーン１に当た
って振動や騒音が発生したり、チェーン１の回動が阻害
されるような恐れがなくなる。As described above, in the present embodiment, the width of the guide shoe 2 on the upstream side of the contact start position 7 is wider than the other portions, and the contact area is large, so that the chain 1
Since the guide shoe 2 can be stably guided and the rigidity of the guide shoe 2 is increased, the impact due to contact with the chain 1 can be mitigated. Therefore, even if there is a fulcrum (pivot) of the chain tensioner main body 3 on the downstream side of the rotation direction of the chain 1, the guide shoe 2 vibrates and hits the chain 1 to generate vibration or noise, or the rotation of the chain 1 is hindered. There is no fear of being disturbed.
【００４８】本実施形態ではまた、給油溝６ｆがチェー
ン１との接触開始位置７まで延設され、かつ上流端部が
閉じられているので、チェーン１の停止時にも給油溝６
ｆ内に余分に潤滑油を保持できるため、チェーン１の回
動開始時点で確実にチェーン１に潤滑油を供給すること
ができる。したがって、長時間内燃機関を停止していた
ような場合でもチェーン１が滑らかに回動し、かつ摩耗
が抑制される。Further, in the present embodiment, the oil supply groove 6f is extended to the contact start position 7 with the chain 1 and the upstream end is closed. Therefore, the oil supply groove 6f is stopped even when the chain 1 is stopped.
Since the extra lubricating oil can be retained in f, the lubricating oil can be reliably supplied to the chain 1 at the start of rotation of the chain 1. Therefore, even if the internal combustion engine is stopped for a long time, the chain 1 rotates smoothly and wear is suppressed.
【００４９】なお、チェーン１が上方から下方に向かっ
て回動する位置にガイドシュー２が設けられている場合
は、潤滑油通路４を接触開始位置７よりも更に上流側に
配置しても、上記と同様の効果が得られる。When the guide shoe 2 is provided at a position where the chain 1 rotates downward from above, even if the lubricating oil passage 4 is arranged further upstream than the contact start position 7, The same effect as above can be obtained.
【００５０】また、チェーン１が下方から上方に向かっ
て回動する位置にガイドシュー２が設けられている場合
は、本実施形態のように給油溝６ｆが潤滑油通路４から
上流方向に向かって延設されていると、その延設部分に
潤滑油が溜められるので、特に長時間停止後の再起動時
に効果的である。Further, when the guide shoe 2 is provided at a position where the chain 1 is rotated from the lower side to the upper side, the oil supply groove 6f extends from the lubricating oil passage 4 in the upstream direction as in the present embodiment. When extended, lubricating oil is stored in the extended portion, which is particularly effective when restarting after a long stop.
【００５１】[0051]
【発明の実施の形態６】図１０は本発明の第６の実施形
態におけるチェーンテンショナーの先端部を示す正面
図、図１１は図１０のXI−XI矢視縦断面図、図１２は図
１０のXII−XII矢視横断面図である。Sixth Embodiment of the Invention FIG. 10 is a front view showing a tip end portion of a chain tensioner according to a sixth embodiment of the present invention, FIG. 11 is a vertical sectional view taken along the line XI-XI of FIG. 10, and FIG. FIG. 14 is a lateral cross-sectional view taken along the line XII-XII of FIG.
【００５２】本実施形態では、前記第１の実施形態と同
様なガイドシュー２の中央線に沿う給油溝６ｇが設けら
れ、さらにその給油溝６ｇを横断して長手方向を区切る
ように、高さが給油溝６ｇの深さよりも低い複数の仕切
堰８が、仕切壁として設けられる。すなわち、給油溝６
ｇは仕切堰８により複数の区画に区切られて、それぞれ
油溜まり９を形成する。In this embodiment, an oil supply groove 6g is provided along the center line of the guide shoe 2 similar to that of the first embodiment, and the height is set so as to cross the oil supply groove 6g and divide the longitudinal direction. A plurality of partition weirs 8 having a height lower than the depth of the oil supply groove 6g are provided as partition walls. That is, the oil supply groove 6
The g is divided into a plurality of sections by the partition weir 8 to form oil sumps 9.
【００５３】したがって、それら複数の油溜まりには常
に一定量の潤滑油が保持され、チェーン駆動が円滑にな
る。また、内燃機関の起動時等で、潤滑油が十分に供給
されない時でも、油溜まり９内に潤滑油が保持されてい
るので、潤滑油が供給されるようになるまでの間、円滑
にチェーン１を作動できるとともに、摩耗・振動等を抑
制することができる。Therefore, a certain amount of lubricating oil is always held in the plurality of oil sumps, so that the chain can be driven smoothly. Further, even when the lubricating oil is not sufficiently supplied at the time of starting the internal combustion engine or the like, the lubricating oil is held in the oil sump 9, so that the chain can be smoothly supplied until the lubricating oil is supplied. 1 can be operated and wear and vibration can be suppressed.
【００５４】本実施形態ではまた、給油溝６ｇを区切る
仕切堰８を給油溝６ｇ内に設けたので、潤滑油を保持す
るだけでなく、給油溝６ｇ部の剛性を高めることができ
る。したがって、給油溝６ｇの側壁がチェーン１との接
触により給油溝６ｇ内へ弯曲してくるのを防止すること
ができる。その結果、安定して潤滑油を供給でき、さら
にガイドシュー２の劣化を抑制できる。Further, in this embodiment, since the partition weir 8 for partitioning the oil supply groove 6g is provided in the oil supply groove 6g, not only the lubricating oil is retained but also the rigidity of the oil supply groove 6g can be enhanced. Therefore, it is possible to prevent the side wall of the oil supply groove 6g from bending into the oil supply groove 6g due to contact with the chain 1. As a result, the lubricating oil can be stably supplied, and the deterioration of the guide shoe 2 can be suppressed.
【００５５】さらに本実施形態では、仕切堰８の高さが
給油溝６ｇの深さよりも低くなっているので、チェーン
１が仕切堰８に接触せず、したがって磨耗が防止され、
かつ騒音を低減できる。加えて、潤滑油の給油溝６ｇ内
移動を阻害することなく、潤滑油を給油溝６ｇ内に保持
できる。Further, in this embodiment, since the height of the partition weir 8 is lower than the depth of the oil supply groove 6g, the chain 1 does not contact the partition weir 8 and therefore wear is prevented,
And noise can be reduced. In addition, the lubricating oil can be retained in the oil supply groove 6g without hindering the movement of the lubricating oil in the oil supply groove 6g.
【００５６】仕切堰８としては、図示例のように単に給
油溝６ｇの側壁を横に結ぶものだけでなく、例えばジグ
ザグ状のものでもよい。ただし、チェーン１の回動によ
り給油溝６ｇの全長にわたって潤滑油が送給されるため
には、仕切堰８の高さを給油溝６ｇの側壁の高さ、すな
わち給油溝６ｇの深さよりも低くすることが必要であ
る。The partition weir 8 is not limited to one that laterally connects the side walls of the oil supply groove 6g as in the illustrated example, but may be, for example, a zigzag shape. However, in order for the lubricating oil to be fed over the entire length of the oil supply groove 6g by the rotation of the chain 1, the height of the partition weir 8 should be lower than the height of the side wall of the oil supply groove 6g, that is, the depth of the oil supply groove 6g. It is necessary to.
【００５７】なお、上記の諸実施形態において、給油溝
６ａ，６ｂ等は、ガイドシュー２の長手方向に設けられ
ていればよく、必ずしも全長にわたっていなくてもよ
い。またガイドシュー２の表面（チェーン１との接触
面）は、上方を向いている方が潤滑油を保持する上で好
ましいが、たとえ下方を向いていても、チェーン１で覆
われているし、しかも潤滑油自体にも粘性があるので、
十分に潤滑油を保持できる。In the above-described embodiments, the oil supply grooves 6a, 6b, etc. need only be provided in the longitudinal direction of the guide shoe 2, and do not necessarily extend over the entire length. It is preferable that the surface of the guide shoe 2 (contact surface with the chain 1) faces upward, in order to retain the lubricating oil, but even if it faces downward, it is covered with the chain 1. Moreover, since the lubricating oil itself is viscous,
Can hold enough lubricating oil.
【図１】図１は本発明の一実施形態におけるチェーンテ
ンショナーの先端部を一部切欠いて示す拡大側面図であ
る。FIG. 1 is an enlarged side view showing a chain tensioner according to an embodiment of the present invention with a tip portion partially cut away.
【図２】図２は図１のII−II矢視正面図である。FIG. 2 is a front view taken along the line II-II of FIG.
【図３】図３は図１および図２のIII−III矢視断面をチ
ェーンとともに描いた図である。FIG. 3 is a drawing showing a cross section taken along the line III-III of FIGS. 1 and 2 together with a chain.
【図４】図４は本発明の第２の実施形態におけるチェー
ンテンショナーの先端部を示す正面図である。FIG. 4 is a front view showing a tip end portion of a chain tensioner according to a second embodiment of the present invention.
【図５】図５は図４のＶ−Ｖ矢視断面をチェーンととも
に描いた図である。FIG. 5 is a drawing showing a cross section taken along the line VV of FIG. 4 together with a chain.
【図６】図６は本発明の第３の実施形態におけるチェー
ンテンショナーの先端部を示す正面図である。FIG. 6 is a front view showing a tip end portion of a chain tensioner according to a third embodiment of the present invention.
【図７】図７は本発明の第３の実施形態の変形例を示す
図である。FIG. 7 is a diagram showing a modification of the third embodiment of the present invention.
【図８】図８は本発明の第４の実施形態におけるチェー
ンテンショナーの先端部を示す正面図である。FIG. 8 is a front view showing a tip portion of a chain tensioner according to a fourth embodiment of the present invention.
【図９】図９は本発明の第５の実施形態におけるチェー
ンテンショナーの先端部を示す正面図である。FIG. 9 is a front view showing a tip end portion of a chain tensioner according to a fifth embodiment of the present invention.
【図１０】図１０は本発明の第６の実施形態におけるチ
ェーンテンショナーの先端部を示す正面図である。FIG. 10 is a front view showing a tip end portion of a chain tensioner according to a sixth embodiment of the present invention.
【図１１】図１１は図１０のXI−XI矢視縦断面図であ
る。11 is a vertical cross-sectional view taken along the line XI-XI of FIG.
【図１２】図１２は図１０のXII−XII矢視横断面図であ
る。12 is a transverse sectional view taken along the line XII-XII in FIG.
【図１３】図１３は従来のチェーン伝動装置の一例を示
す模式図である。FIG. 13 is a schematic view showing an example of a conventional chain transmission device.
【図１４】図１４は図１３中のテンショナーアームの正
面図である。FIG. 14 is a front view of the tensioner arm in FIG.
【図１５】図１５は同じく平面図である。FIG. 15 is a plan view of the same.
【図１６】図１６は図１４のXVI−XVI矢視断面図であ
る。16 is a sectional view taken along the line XVI-XVI of FIG.
【図１７】図１７は図１４のXVII−XVII矢視断面図であ
る。17 is a cross-sectional view taken along the arrow XVII-XVII in FIG.
１…チェーン（巻掛式動力伝達部材）、１ａ…リンクプ
レート、１ｂ…ピン、２…ガイドシュー（摺接部材）、
３…チェーンテンショナー本体（支持部材）、４…潤滑
油通路、６ａ，６ｂ，６ｃ，６ｄ，６ｅ，６ｆ，６ｇ…
給油溝、７…接触開始位置、８…仕切堰、９…油溜ま
り。1 ... Chain (winding type power transmission member), 1a ... Link plate, 1b ... Pin, 2 ... Guide shoe (sliding contact member),
3 ... Chain tensioner main body (support member), 4 ... Lubricating oil passage, 6a, 6b, 6c, 6d, 6e, 6f, 6g ...
Oil supply groove, 7 ... Contact start position, 8 ... Partition weir, 9 ... Oil sump.
Claims (6)
接部材と、該摺接部材の背面を支持し該摺接部材と一体
に形成された支持部材と、上記摺接部材の接触面の長手
方向にわたって設けられた潤滑油の給油溝と、上記摺接
部材の、上記動力伝達部材との接触開始側である、回動
方向上流側に配され、上記摺接部材の接触面に潤滑油を
供給する給油手段と、該給油手段を上記給油溝に連通す
る連通路とを備えた巻掛式動力伝達部材のガイド装置に
おいて、 上記給油手段は、上記支持部材の背面に配され上記ガイ
ド装置を弾性付勢する油圧テンショナであって、 該油圧テンショナのピストン内に設けられた油路と、上
記摺接部材の接触面に設けられた給油溝とが、上記支持
部材を貫通する潤滑油通路によって直接連通しているこ
とを特徴とする巻掛式動力伝達部材のガイド装置。1. A sliding contact member having a front surface in contact with a winding type power transmission member, a support member supporting a rear surface of the sliding contact member and integrally formed with the sliding contact member, and the sliding contact member. A lubricating oil supply groove provided in the longitudinal direction of the contact surface and the sliding contact member are arranged on the upstream side in the rotation direction, which is the contact start side of the power transmission member, and the contact surface of the sliding contact member. A guide device for a wrapping type power transmission member, comprising: a lubrication means for supplying lubricating oil to the oil supply passage; A hydraulic tensioner for elastically urging the guide device, wherein an oil passage provided in a piston of the hydraulic tensioner and an oil supply groove provided on a contact surface of the sliding contact member penetrate the support member. Characterized by direct communication through a lubricating oil passage Wrapping power transmission member of the guide device.
接部材と、該摺接部材の背面を支持し該摺接部材と一体
に形成された支持部材と、上記摺接部材の接触面の長手
方向にわたって設けられた複数の潤滑油の給油溝と、上
記摺接部材の、上記動力伝達部材との接触開始側であ
る、回動方向上流側に配され、上記摺接部材の接触面に
潤滑油を供給する給油手段と、該給油手段を上記摺接部
材の上記複数の給油溝間に位置する接触面に連通する連
通路とを備えた巻掛式動力伝達部材のガイド装置におい
て、 上記給油手段は、上記支持部材の背面に配され上記ガイ
ド装置を弾性付勢する油圧テンショナであって、 該油圧テンショナのピストン内に設けられた油路と、上
記摺接部材の上記複数の給油溝間に位置する接触面と
が、上記支持部材を貫通する潤滑油通路によって直接連
通していることを特徴とする巻掛式動力伝達部材のガイ
ド装置。2. A sliding contact member having a front surface in contact with a winding type power transmission member, a support member supporting a rear surface of the sliding contact member and integrally formed with the sliding contact member, and the sliding contact member. A plurality of lubricating oil supply grooves provided in the longitudinal direction of the contact surface and the sliding contact member are arranged on the upstream side in the rotation direction, which is the contact start side of the sliding contact member, and the sliding contact member. A guide device for a winding type power transmission member including an oil supply means for supplying lubricating oil to a contact surface and a communication passage communicating the oil supply means with a contact surface located between the plurality of oil supply grooves of the sliding contact member. In the above, the oil supply means is a hydraulic tensioner that is arranged on the back surface of the support member and elastically biases the guide device. The oil passage is provided in the piston of the hydraulic tensioner, and the plurality of sliding contact members are provided. Contact surfaces located between the oil supply grooves of the Wrapping power transmission member of the guide device, characterized in that directly communicates with the lubricating oil passage to be.
材の接触面の両側縁に沿って設けられたことを特徴とす
る請求項２記載の巻掛式動力伝達部材のガイド装置。3. The guide device for a winding type power transmission member according to claim 2, wherein two of the plurality of oil supply grooves are provided along both side edges of the contact surface of the sliding contact member. .
接部材と、該摺接部材の背面を支持し該摺接部材と一体
に形成された支持部材と、上記摺接部材の接触面の長手
方向にわたって設けられた潤滑油の給油溝と、上記摺接
部材の、上記動力伝達部材との接触開始側である、回動
方向上流側に配され、上記摺接部材の接触面に潤滑油を
供給する給油手段と、該給油手段を上記給油溝に連通す
る連通路と、上記給油溝に設けられ上記給油手段から供
給された潤滑油を保持する保持機構とを備えた巻掛式動
力伝達部材のガイド装置において、 上記給油手段は、上記支持部材の背面に配され上記ガイ
ド装置を弾性付勢する油圧テンショナであって、 該油圧テンショナのピストン内に設けられた油路と、上
記摺接部材の接触面に設けられた給油溝とが、上記支持
部材を貫通する潤滑油通路によって直接連通しているこ
とを特徴とする巻掛式動力伝達部材のガイド装置。4. A sliding contact member having a front surface in contact with a winding type power transmission member, a support member supporting a rear surface of the sliding contact member and integrally formed with the sliding contact member, and the sliding contact member. A lubricating oil supply groove provided in the longitudinal direction of the contact surface and the sliding contact member are arranged on the upstream side in the rotation direction, which is the contact start side of the power transmission member, and the contact surface of the sliding contact member. A wrapping device including an oil supply means for supplying the lubricating oil to the In the guide device for a hydraulic power transmission member, the oil supply means is a hydraulic tensioner arranged on the back surface of the support member to elastically bias the guide device, and an oil passage provided in a piston of the hydraulic tensioner, An oil supply groove provided on the contact surface of the sliding contact member , Wrapping power transmission member of the guide device, characterized in that directly communicates with the lubricating oil passage that penetrates the support member.
くとも１つの仕切壁であって、高さが上記給油溝の深さ
よりも低いことを特徴とする請求項４記載の捲掛式動力
伝達部材のガイド装置。5. The winding type power transmission according to claim 4, wherein the holding mechanism is at least one partition wall which partitions the inside of the oil supply groove, and the height of which is lower than the depth of the oil supply groove. A member guide device.
上記動力伝達部材との接触面の上記回動方向上流端まで
延びており、かつ端部が閉じていることを特徴とする請
求項１ないし請求項５いずれか記載の捲掛式動力伝達部
材のガイド装置。6. The oil supply groove extends at least to an upstream end of the contact surface between the sliding contact member and the power transmission member in the rotation direction, and the end portion is closed. A guide device for a winding type power transmission member according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003170377A JP3898159B2 (en) | 2003-06-16 | 2003-06-16 | Guide device for winding power transmission member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003170377A JP3898159B2 (en) | 2003-06-16 | 2003-06-16 | Guide device for winding power transmission member |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000171090A Division JP3460980B2 (en) | 2000-06-07 | 2000-06-07 | Guide device for winding power transmission member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003329092A true JP2003329092A (en) | 2003-11-19 |
| JP3898159B2 JP3898159B2 (en) | 2007-03-28 |
Family
ID=29707564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003170377A Expired - Fee Related JP3898159B2 (en) | 2003-06-16 | 2003-06-16 | Guide device for winding power transmission member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3898159B2 (en) |
Cited By (5)
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|---|---|---|---|---|
| DE102004055280A1 (en) * | 2004-11-16 | 2006-05-24 | Joh. Winklhofer & Söhne GmbH und Co KG | Tensioning and guiding rail of drive chain of camshaft of internal combustion engine has elongated tensioning rail installed on guide rail and square-shaped in cross section and with guide face in contact with bushes or rollers of chain |
| WO2006061075A1 (en) * | 2004-12-08 | 2006-06-15 | Schaeffler Kg | Oil supply system for supplying oil to slide rails and guide rails |
| US10502288B2 (en) | 2016-08-04 | 2019-12-10 | Tsubakimoto Chain Co. | Chain drive device and chain guide |
| JP2021124203A (en) * | 2020-02-03 | 2021-08-30 | ボーグワーナー インコーポレーテッド | Chain guide and tensioning apparatus for vehicles |
| DE102021103692A1 (en) | 2020-03-10 | 2021-09-16 | Tsubakimoto Chain Co. | Chain guide |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410935A (en) * | 2013-08-21 | 2013-11-27 | 古县信立诺机械有限公司 | Engine belt automatic tensioning wheel |
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| US11466755B2 (en) | 2020-02-03 | 2022-10-11 | Borgwarner Inc. | Chain guide and tensioning apparatus for vehicles |
| JP7213278B2 (en) | 2020-02-03 | 2023-01-26 | ボーグワーナー インコーポレーテッド | Chain guide and tensioning device for vehicles |
| DE102021103692A1 (en) | 2020-03-10 | 2021-09-16 | Tsubakimoto Chain Co. | Chain guide |
| KR20210114332A (en) | 2020-03-10 | 2021-09-23 | 가부시기가이샤쯔바기모도체인 | Chain guide |
| US11619298B2 (en) | 2020-03-10 | 2023-04-04 | Tsubakimoto Chain Co. | Chain guide |
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| JP3898159B2 (en) | 2007-03-28 |
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