JPH0561549U - Chain slider - Google Patents
Chain sliderInfo
- Publication number
- JPH0561549U JPH0561549U JP912892U JP912892U JPH0561549U JP H0561549 U JPH0561549 U JP H0561549U JP 912892 U JP912892 U JP 912892U JP 912892 U JP912892 U JP 912892U JP H0561549 U JPH0561549 U JP H0561549U
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- Prior art keywords
- oil
- shaped recess
- chain
- trough
- main body
- 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.)
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Abstract
(57)【要約】
【目的】 オイル飛沫を捕獲してチェーン３との間の油
潤滑を行い、チェーンスライダの耐久性を向上させる。
【構成】 内燃機関の動力チェーンの走行を案内する樋
状凹部１３を有する本体１０に、上方かつ前記樋状凹部
１３の外部へ突出し、下端が前記樋状凹部１３内に臨ん
だ傾斜板１６０を有する所要数のオイルガイド１６を設
けて、機関内のオイル飛沫を捕獲し、前記樋状凹部１３
内へ供給する。
(57) [Summary] [Purpose] To capture the oil droplets and lubricate them with the chain 3 to improve the durability of the chain slider. A tilt plate 160 is provided on a main body 10 having a trough-shaped recess 13 for guiding the travel of a power chain of an internal combustion engine, and an inclined plate 160 protruding upward and outside the trough-shaped recess 13 and having a lower end facing the trough-shaped recess 13. The required number of oil guides 16 are provided to capture oil splashes in the engine, and the gutter-shaped recess 13 is provided.
Supply inside.
Description
【０００１】[0001]
本考案は、内燃機関のチェーンによる動力伝達機構において、チェーンを安定 走行させるために設けられるチェーンスライダに関する。 The present invention relates to a chain slider provided for stable running of a chain in a power transmission mechanism by a chain of an internal combustion engine.
【０００２】[0002]
内燃機関の各バルブをタイミング動作させるための動力伝達機構として、従来 から、図１４にその概略構造を示すようなものがある。すなわち、１は図示しな いバルブを動作させるカムシャフトであり、クランクシャフト２からタイミング チェーン３（以下、チェーンという）を介して伝達される動力によって駆動する 。前記チェーン３は、プランジャ４に押圧されるチェーンテンショナ５によって 適当な張力が与えられるとともに、樋状のチェーンスライダ６によって案内され 、安定走行するものである。 BACKGROUND ART As a power transmission mechanism for timing-operating each valve of an internal combustion engine, there has conventionally been a power transmission mechanism whose schematic structure is shown in FIG. That is, reference numeral 1 denotes a cam shaft for operating a valve (not shown), which is driven by power transmitted from the crank shaft 2 through a timing chain 3 (hereinafter referred to as a chain). The chain 3 is given a proper tension by a chain tensioner 5 pressed by a plunger 4 and guided by a gutter-shaped chain slider 6 so as to stably run.
【０００３】[0003]
しかしながら、上記従来構造によると、チェーンスライダ６は、チェーン３と の摺動面あるいは全体が、ポリアミド樹脂、ＰＴＦＥ樹脂、ニトリルゴム等から なるものであるが、チェーン３の高速走行によって、機関内のオイル飛沫がチェ ーン３との摺動面に十分に供給されないので、前記摺動面が早期に摩耗してしま い、このため耐久性が低く、定期的にメンテナンスが必要であった。 However, according to the above-mentioned conventional structure, the chain slider 6 has a sliding surface with the chain 3 or the whole of which is made of polyamide resin, PTFE resin, nitrile rubber or the like. Since the oil droplets were not sufficiently supplied to the sliding surface with the chain 3, the sliding surface was worn early, which resulted in low durability and required regular maintenance.
【０００４】 本考案は、上記のような問題に鑑みてなされたもので、その目的とするところ は、機関内に飛散しているオイル飛沫をチェーンとの摺動面に十分に供給してチ ェーンとの間の油潤滑を積極的に行い、チェーンスライダの耐久性を向上させる ことにある。The present invention has been made in view of the above problems, and an object thereof is to sufficiently supply oil splashes scattered in an engine to a sliding surface with a chain. The purpose is to improve the durability of the chain slider by positively lubricating the chain with oil.
【０００５】[0005]
上記課題を解決するための手段として、本考案の請求項１に係るチェーンスラ イダは、正面に内燃機関のチェーンの走行を上下に案内する樋状凹部を有する本 体に、上方かつ前記樋状凹部の外部へ突出し、下端が前記樋状凹部内に臨んだ傾 斜板を有する所要数のオイルガイドを設けてなる構成としたもので、この場合、 請求項２のように、前記オイルガイドが、本体の側板に一体に形成されてなる構 成としたり、請求項３のように、前記オイルガイドの傾斜板が、本体の樋状凹部 の正面側にあって、該オイルガイドの両側部が、前記本体の側板に形成された嵌 合溝に嵌着されてなる構成としたり、請求項４のように、前記オイルガイドの傾 斜板の下端部に、前記樋状凹部内に向けて延びる弾性体シートが取着されてなる 構成としたり、請求項５のように、請求項３におけるオイルガイドが弾性体から なり、正面の傾斜板に左右に分割可能なスリットが形成されてなる構成とするこ とができる。 As a means for solving the above-mentioned problems, a chain slider according to claim 1 of the present invention has a gutter-shaped recess on the front for vertically guiding the running of a chain of an internal combustion engine. A configuration is provided in which a required number of oil guides that have an inclined plate that protrudes to the outside of the recess and has a lower end that faces the trough-shaped recess are provided. In this case, as in claim 2, , The side plate of the main body is integrally formed, or the inclined plate of the oil guide is on the front side of the gutter-shaped recess of the main body and both side parts of the oil guide are , A fitting groove formed in a side plate of the main body, or extending toward the inside of the gutter-shaped recess at the lower end of the tilt plate of the oil guide, as in claim 4. With an elastic sheet attached, As in Motomeko 5, the oil guide in Claim 3 is made of an elastic body, it is the structure and child that the slit can be divided into left and right inclined plate of the front becomes formed.
【０００６】 また、本考案の請求項６のように、前記本体の背面上端に形成されたオイル受 け部と、このオイル受け部から下方へ延びるとともに中途に所要数の絞り部を有 するオイル回収溝と、このオイル回収溝における前記各絞り部の上側位置に開設 されて前記樋状凹部の底部摺動面へ通じる透孔と、前記底部摺動面に形成されて 前記各透孔から下方へ延びる本流部及びこの本流部から左右斜め下方へ分岐して 延びる支流部からなるオイル溝とを有する構成としても良く、さらにこの場合、 請求項７のように、前記オイル回収溝に、前記各透孔の開口部下縁に沿って突設 された堰と、前記各絞り部の下側から下方へ延びてオイルの流れを前記オイル回 収溝の左右全幅に分配する筋状凹凸群を形成してなる構成とすることが一層好ま しい。According to a sixth aspect of the present invention, an oil receiving portion formed at the upper end of the rear surface of the main body and an oil receiving portion that extends downward from the oil receiving portion and has a required number of throttle portions in the middle thereof. A recovery groove, a through hole that is opened at an upper position of each of the throttle portions in the oil recovery groove and communicates with a bottom sliding surface of the trough-shaped recess, and a through hole that is formed on the bottom sliding surface and that extends downward from each of the through holes. It may be configured to have an oil groove formed of a mainstream portion extending toward and a tributary portion branching from the mainstream portion and extending obliquely downward to the left and right. Further, in this case, as in claim 7, the oil recovery groove is provided with each of A weir projecting along the lower edge of the opening of the through hole and a group of streaky irregularities that extend downward from the lower side of each throttle section and distribute the oil flow to the entire left and right width of the oil collection groove are formed. More preferred Yes.
【０００７】[0007]
請求項１の構成によると、機関内で飛散したオイル飛沫が、本体の樋状凹部の 外部に突出したオイルガイドの傾斜板で捕獲され、前記傾斜板の内側面を流れ落 ちて前記樋状凹部内に案内されるので、チェーンと樋状凹部の底部摺動面との良 好な油潤滑がなされる。また、このオイルガイドは、樋状凹部内でのチェーンの 走行に伴う空気の流れを良好にし、一種の冷却フィンとしても作用する。この場 合、請求項２のように、オイルガイドが本体の側板に一体に形成されたものにお いては、オイルの供給が樋状凹部の側面側からなされる。また、請求項３のよう に、オイルガイドが前記樋状凹部の正面側に設けられたものにおいては、オイル の供給が樋状凹部の正面側からなされるが、この構成において、請求項４のよう に、傾斜板の下端部に前記樋状凹部内に向けて延びる弾性体シートを取着するこ とによって、樋状凹部内へオイルが到達せずに該樋状凹部の正面側で落下してし まうのを防止し、確実なオイル供給を可能とする。また、請求項３のオイルガイ ドは、本体の樋状凹部内を通るようにチェーンを組み込む際に、本体から一端取 り外さなければならないが、請求項５のように、このオイルガイドを弾性体製と して、正面の傾斜板に左右に分割可能なスリットを形成することにより、このス リットを開いてチェーンを前記樋状凹部へ入れることができるので、オイルガイ ドを本体に取り付けたままでチェーンの装着が可能である。 According to the configuration of claim 1, the oil splashes scattered in the engine are captured by the inclined plate of the oil guide protruding outside the trough-shaped recess of the main body, and flow down on the inner side surface of the inclined plate to form the gutter-shaped. Since it is guided into the recess, good oil lubrication is provided between the chain and the bottom sliding surface of the trough-shaped recess. In addition, this oil guide improves the air flow accompanying the running of the chain in the trough-shaped recess, and also acts as a kind of cooling fin. In this case, as in claim 2, in the case where the oil guide is integrally formed with the side plate of the main body, the oil is supplied from the side surface side of the trough-shaped recess. When the oil guide is provided on the front side of the trough-shaped recess as in claim 3, the oil is supplied from the front side of the trough-shaped recess. As described above, by attaching the elastic sheet extending toward the inside of the trough-shaped recess to the lower end of the inclined plate, the oil does not reach the trough-shaped recess and falls on the front side of the trough-shaped recess. This prevents the oil from leaking and enables a reliable oil supply. Also, in the oil guide of claim 3, when the chain is installed so as to pass through the trough-shaped recess of the main body, one end of the chain must be removed from the main body. By making slits that can be divided into left and right on the front inclined plate, the slit can be opened and the chain can be inserted into the trough-shaped recess, so the chain can be attached with the oil guide attached to the main body. Can be installed.
【０００８】 また、請求項６の構成によると、機関内で飛散したオイル飛沫が、本体の背面 上端に形成されたオイル受け部で捕獲され、そこから前記背面に形成されたオイ ル回収溝を流れ落ちるオイルの一部が、オイル回収溝の中途に開設された透孔か ら、チェーンの走行によって負圧となる本体正面の樋状凹部側へ吸い出されて、 この樋状凹部の底部摺動面に供給され、さらに本流部及び支流部からなるオイル 溝によってこの底部摺動面の全域に供給されるので、チェーンと樋状凹部の底部 摺動面との良好な油潤滑がなされる。そして、前記透孔に入らずにその両側でオ イル回収溝を流れ落ちるオイルは、前記透孔の下方の絞り部によって流れが一旦 収束されるため、その下方の透孔へも適量のオイルの供給が行われる。また、こ の場合、請求項７のように、前記各透孔の開口部下縁に沿った堰を設けることに よって、この堰がオイル回収溝を流れ落ちるオイルの一部を堰き止めて前記透孔 へ確実に案内することができ、しかも、前記堰の下側で前記絞り部によって収束 されたオイルの流れが、多数の筋状凹凸群によって再びオイル回収溝の全幅に分 配されるので、その下方の堰でも適量のオイルが堰き止められ、透孔から樋状凹 部の底部摺動面へ供給される。According to the structure of claim 6, the oil splashes scattered in the engine are captured by the oil receiving portion formed at the upper end of the rear surface of the main body, and from there, the oil recovery groove formed on the rear surface is collected. Part of the oil that runs down is sucked out from the through hole that is opened in the middle of the oil recovery groove to the side of the trough-shaped recess on the front of the main body, which becomes negative pressure when the chain runs, and the bottom of this trough-shaped recess slides. Since it is supplied to the entire surface of the bottom sliding surface by the oil groove consisting of the main stream portion and the tributary portion, good oil lubrication is achieved between the chain and the bottom sliding surface of the trough-shaped recess. Then, the oil that does not enter the through hole and flows down the oil recovery groove on both sides of the oil is once converged by the throttle portion below the through hole, so that an appropriate amount of oil is also supplied to the lower hole. Is done. Further, in this case, as in claim 7, by providing a weir along the lower edge of the opening of each of the through holes, this weir dams a part of the oil that flows down through the oil recovery groove, and thereby the through holes. The flow of oil converged by the throttle portion under the weir is distributed to the entire width of the oil recovery groove again by the large number of streaky irregularities. An appropriate amount of oil is also blocked by the lower weir, and is supplied from the through hole to the bottom sliding surface of the trough-shaped recess.
【０００９】[0009]
図１ないし図４に、本考案に係るチェーンスライダの第一実施例を示す。１０ は、基板１１の両側縁に形成された側板１２，１２間の樋状凹部１３でチェーン ３の走行を案内する本体であり、一端に設けられた固定ピン１４を上側にして図 示しない内燃機関内に固定される。前記両側板１２，１２には、長手方向二カ所 で互いに対向する切欠１５が形成されるとともに、各切欠１５の外側へ突出した オイルガイド１６が一体に形成されている。 1 to 4 show a first embodiment of a chain slider according to the present invention. Reference numeral 10 denotes a main body that guides the traveling of the chain 3 by means of a trough-shaped recess 13 formed between the side plates 12 and 12 formed on both side edges of the base plate 11. An internal combustion engine (not shown) has a fixing pin 14 provided at one end as an upper side. Fixed in the institution. The both side plates 12, 12 are formed with notches 15 that oppose each other at two locations in the longitudinal direction, and an oil guide 16 that projects to the outside of each notch 15 is integrally formed.
【００１０】 オイルガイド１６は、前記切欠１５の下部において側板１２から延設され上方 へ向けて前記樋状凹部１３の外側へ傾斜突出した傾斜板１６０と、この傾斜板１ ６０の上端から前記側板１２と平行に延びる上端板１６１と、前記基板１１の一 部が切欠１５の外側へ突出した背面板１６２とからなる。傾斜板１６０及び上端 板１６１は、図２及び図３に示すように、正面側の縁が内側へ偏向するように傾 斜している。The oil guide 16 extends from the side plate 12 in the lower portion of the notch 15 and is inclined upward to the outside of the trough-shaped recess 13, and an inclined plate 160 and an upper end of the inclined plate 160. An upper end plate 161 extending in parallel with 12 and a rear plate 162 having a part of the substrate 11 protruding to the outside of the notch 15. As shown in FIGS. 2 and 3, the inclined plate 160 and the upper end plate 161 are inclined so that the front edge is deflected inward.
【００１１】 上記の構成において、図４に示すように、チェーン３は本体１０の樋状凹部１ ３内を下方へ走行する。内燃機関内では、ギアやクランクの回転によって、図中 多数の矢印で示すようにオイルが飛散しており、このオイル飛沫の一部は、前記 本体１０の両側に突設されたオイルガイド１６によって捕獲される。捕獲された オイルは、矢印Ｆで示すように、前記オイルガイド１６の傾斜板１６０の内側面 に案内されて切欠１５から前記樋状凹部１３内に供給され、チェーン３と樋状凹 部１３内の底部摺動面１３ａとの潤滑性を向上させる。また、このオイルガイド １６は、樋状凹部１３内でのチェーン３の走行に伴う空気の流れを良好にし、一 種の冷却フィンとしても作用するので、前記潤滑性の向上と相俟って摺動発熱を 抑制することができる。In the above structure, as shown in FIG. 4, the chain 3 travels downward in the trough-shaped recess 13 of the main body 10. In the internal combustion engine, oil is scattered by the rotation of gears and cranks as indicated by a number of arrows in the figure, and a part of this oil splash is generated by the oil guides 16 provided on both sides of the main body 10. To be captured. The trapped oil is guided by the inner surface of the inclined plate 160 of the oil guide 16 and supplied into the trough-shaped recess 13 through the notch 15 as shown by an arrow F, and the oil inside the chain 3 and the trough-shaped recess 13 is guided. Improves the lubricity with the bottom sliding surface 13a. Further, the oil guide 16 improves the flow of air accompanying the running of the chain 3 in the trough-shaped recess 13 and also acts as a kind of cooling fin, so that the oil guide 16 slides together with the improvement of lubricity. Dynamic heat generation can be suppressed.
【００１２】 なお、本実施例において、オイルガイド１６の傾斜板１６０及び上端板１６１ を、正面側の縁が内側へ偏向するように傾斜した形状としたのは、一旦捕獲され たオイルが樋状凹部１３内へ向けて流れる際に、正面側へ逃げてしまうことがな いようにしたものであり、これによって前記オイルは、摺動面１３ａ側へ確実に 案内される。In this embodiment, the inclined plate 160 and the upper end plate 161 of the oil guide 16 are formed so as to be inclined so that the front edge of the oil guide 16 is deflected inward. The oil is prevented from escaping to the front side when flowing toward the inside of the concave portion 13, whereby the oil is reliably guided to the sliding surface 13a side.
【００１３】 図５及び図６は、本考案に係るチェーンスライダの第二実施例を示すもので、 本体１０の両側板１２の外側面には、その長手方向二カ所の互いに対応する位置 に、それぞれ嵌合溝１７が形成されている。また、オイルガイド１６はＳＰＣＣ 等の板金をプレス成形したものであって、上部が本体１０の樋状凹部１３の正面 側外部に突出するとともに下部が前記樋状凹部１３内に臨むように傾斜した傾斜 板１６０と、その両側の端板１６３と、この両端板１６３のそれぞれの先端に屈 曲形成されたスナップフィット１６３ａとを有し、このスナップフィット１６３ ａにおいて前記本体１０の嵌合溝１７に嵌合固定されるようになっている。この オイルガイド１６は、チェーン３を組み込んだ後で本体１０に取り付けられ、図 ６に示すように、機関内のオイル飛沫を、樋状凹部１３の正面側で捕獲し、傾斜 板１６０の下端部から樋状凹部１３内に供給するもので、上記第一実施例と同様 の効果が得られる。FIG. 5 and FIG. 6 show a second embodiment of the chain slider according to the present invention. On the outer side surfaces of the side plates 12 of the main body 10, two positions in the longitudinal direction corresponding to each other are provided. A fitting groove 17 is formed in each case. The oil guide 16 is formed by pressing a metal plate such as SPCC. The upper part of the oil guide 16 projects outside the front side of the gutter-shaped recess 13 of the main body 10 and the lower part is inclined so as to face the gutter-shaped recess 13. It has an inclined plate 160, end plates 163 on both sides thereof, and snap fits 163a formed by bending the respective ends of the both end plates 163, and the snap fit 163a is fitted into the fitting groove 17 of the main body 10. It is designed to be fitted and fixed. This oil guide 16 is attached to the main body 10 after the chain 3 is assembled, and as shown in FIG. 6, oil splashes in the engine are captured on the front side of the gutter-shaped recess 13 and the lower end of the inclined plate 160 is captured. Since it is supplied from the inside to the trough-shaped recess 13, the same effect as that of the first embodiment can be obtained.
【００１４】 また、上記オイルガイド１６は、図７及び図８に第三及び第四実施例として示 すように、前記傾斜板１６０の下端に、樋状凹部１３内へ向けて延びるエラスト マー等の弾性体シート１６４を取り付ければ、捕獲されたオイルが傾斜板１６０ の下端とチェーン３の間の隙間Ｇ（図６参照）から落下してしまうのを抑えるの で、樋状凹部１３内へのオイルの供給量を増加することができる。なお、図７に 示す弾性体シート１６４は、傾斜板１６０の下端に加硫接着したものであり、ま た、図８に示す弾性体シート１６４は、その固定端に形成した嵌合突起１６４ａ を、前記傾斜板１６０の下部に形成した嵌合孔１６０ａに嵌め込むことによって 固定したものである。Further, the oil guide 16 has an elastomer or the like extending toward the inside of the trough-shaped recess 13 at the lower end of the inclined plate 160, as shown in FIGS. 7 and 8 as the third and fourth embodiments. If the elastic sheet 164 is attached, it is possible to prevent the captured oil from dropping from the gap G (see FIG. 6) between the lower end of the inclined plate 160 and the chain 3, so that the oil may be introduced into the trough-shaped recess 13. The oil supply can be increased. The elastic sheet 164 shown in FIG. 7 is obtained by vulcanizing and adhering to the lower end of the inclined plate 160, and the elastic sheet 164 shown in FIG. 8 has a fitting protrusion 164a formed at its fixed end. It is fixed by being fitted in a fitting hole 160a formed in the lower part of the inclined plate 160.
【００１５】 図９及び図１０は、本考案の第五実施例を示すもので、本体１０の長手方向二 カ所に形成した嵌合溝１７が、それぞれ両側板１２の外側面から基板１１の背面 にかけて連続的に延びている。また、オイルガイド１６はエラストマー等の弾性 体を加硫成形したもので、前記嵌合溝１７に嵌着される固定用開口部１６５と、 この固定用開口部１６５から連続的に形成されて前記本体１０の樋状凹部１３の 正面に位置するチェーン挿通溝１６５ａとを有し、上部が前記樋状凹部１３の正 面側外部に突出するとともに下部が前記チェーン挿通溝１６５ａを介して樋状凹 部１３内に臨むように傾斜した傾斜板１６０は、スリット１６０ｂにおいて左右 両側へ開閉可能に切断されている。9 and 10 show a fifth embodiment of the present invention, in which the fitting grooves 17 formed at two locations in the longitudinal direction of the main body 10 are formed from the outer surfaces of the side plates 12 to the rear surface of the substrate 11. It continuously extends to Further, the oil guide 16 is formed by vulcanizing and molding an elastic body such as an elastomer. The oil guide 16 is formed with a fixing opening 165 fitted in the fitting groove 17, and continuously formed from the fixing opening 165. The main body 10 has a chain insertion groove 165a located in front of the trough-shaped recess 13 and an upper portion thereof protrudes to the outside of the front side of the trough-shaped recess 13 and a lower portion thereof extends through the chain insertion groove 165a. The inclined plate 160 that is inclined so as to face the inside of the portion 13 is cut so as to be openable and closable on both left and right sides in the slit 160b.
【００１６】 本実施例の構成によると、装着時の作業が容易であるといった利点がある。す なわち、先の図５ないし図８に示す板金製のオイルガイド１６の場合は、予め本 体１０に取り付けておいても、チェーン３を組み込む際には本体１０から一旦取 り外す必要があるが、エラストマー等の弾性体製とした本実施例では、スリット １６０ｂを開いて、ここからチェーン３を本体１０の樋状凹部１３に組み込むこ とができるのである。また、図１０の装着状態では、スリット１６０ｂが互いに 密着しているので、傾斜板１６０で捕獲されたオイルの漏れは極少量に抑えられ るようになっており、しかも、このオイルガイド１６には、チェーン３の両側に 図６に示すような隙間Ｇが形成されることがなく、傾斜板１６０で捕獲されたオ イルは、チェーン挿通溝１６５ａへ向けて案内されるので、チェーン３の潤滑を 効率良く行うことができる。According to the configuration of this embodiment, there is an advantage that the work at the time of mounting is easy. That is, in the case of the sheet metal oil guide 16 shown in FIGS. 5 to 8, even if the oil guide 16 is attached to the main body 10 in advance, it is necessary to remove it once from the main body 10 when incorporating the chain 3. However, in this embodiment, which is made of an elastic body such as an elastomer, the slit 160b can be opened and the chain 3 can be incorporated into the trough-shaped recess 13 of the main body 10 from here. In addition, in the mounted state of FIG. 10, since the slits 160b are in close contact with each other, the leakage of the oil captured by the inclined plate 160 is suppressed to a very small amount, and the oil guide 16 has Since the gap G as shown in FIG. 6 is not formed on both sides of the chain 3 and the oil captured by the inclined plate 160 is guided toward the chain insertion groove 165a, the chain 3 is lubricated. It can be done efficiently.
【００１７】 なお、上記各実施例においては、オイルガイド１６を、本体１０の長手方向二 カ所に設けたが、本考案はとくにこれを限定するものではなく、その他細部の形 状等についても種々の変更が可能である。Although the oil guides 16 are provided at two positions in the longitudinal direction of the main body 10 in each of the above-described embodiments, the present invention is not particularly limited to this, and various other detailed shapes and the like are also provided. Can be changed.
【００１８】 図１１は、本考案の第六実施例を示すもので、チェーンスライダ本体１０の背 面１０ａ（基板１１の背面）の上端部には、当該チェーンスライダが取り付けら れる相手壁面（図示せず）に密接する一対の側壁１８ａを有するオイル受け部１ ８が形成されており、このオイル受け部１８からは下方へ延びるとともに中途に 所要数の絞り部１９ａを有するオイル回収溝１９が連続的に形成されており、こ のオイル回収溝１９における各絞り部１９ａの上側位置には、本体１０正面の樋 状凹部１３の底部摺動面１３ａへ通じる透孔２０が開設されている。一方、前記 樋状凹部１３の底部摺動面１３ａには、前記各透孔２０から下方へ延びる本流部 ２１ａ及びこの本流部２１ａから左右斜め下方へ分岐して延びる支流部２１ｂか らなるオイル溝２１が形成されている。FIG. 11 shows a sixth embodiment of the present invention, in which the chain slider body is attached to the upper surface of the back surface 10a of the chain slider body 10 (the rear surface of the substrate 11) to which the chain slider is attached (see FIG. An oil receiving portion 18 having a pair of side walls 18a in close contact with (not shown) is formed, and an oil collecting groove 19 extending downward from the oil receiving portion 18 and having a required number of throttle portions 19a in the middle is continuous. A through hole 20 communicating with the bottom sliding surface 13a of the trough-shaped recess 13 on the front of the main body 10 is formed in the oil recovery groove 19 at a position above each throttle portion 19a. On the other hand, the bottom sliding surface 13a of the trough-shaped recess 13 has an oil groove formed of a main flow portion 21a extending downward from each of the through holes 20 and a tributary portion 21b extending from the main flow portion 21a obliquely downward to the left and right. 21 is formed.
【００１９】 すなわち、この実施例の構成によると、機関内で飛散したオイル飛沫の一部が オイル受け部１８内に入ることによって捕獲され、このオイル受け部１８から、 本体１０の背面１０ａを下方へ延びるオイル回収溝１９の底面を伝って流れ落ち る。一方、本体１０の正面の樋状凹部１３内には、チェーン３の高速走行によっ て負圧が生じるので、オイル回収溝１９を伝って流れ落ちるオイルの一部は、オ イル回収溝１９の中途に開設された透孔２０を通じて、負圧となった樋状凹部１ ３側へ吸い出され、この樋状凹部１３の底部摺動面１３ａに形成された本流部２ １ａ及び支流部２１ｂからなるオイル溝２１によって、前記底部摺動面１３ａの 全幅に配分され、これによってチェーン３と樋状凹部１３の底部摺動面１３ａと の良好な油潤滑がなされる。また、前記透孔２０に吸い込まれずにその両側から オイル回収溝１９を流れ落ちるオイルは、前記透孔２０の下方の絞り部１９ａに よって流れが一旦収束されるため、その下方のオイル回収溝１９に開設された透 孔２０でも、適量のオイルが樋状凹部１３側へ吸い出され、底部摺動面１３ａへ 供給される。しかも、この構成によると、オイルの捕獲が本体１０の背面１０ａ 側でなされるため、チェーン３の走行による影響を受けることなく、きわめて安 定的に前記底部摺動面１３ａへのオイル供給を行うことができる。That is, according to the configuration of this embodiment, a part of the oil splashes scattered in the engine is captured by entering the oil receiving portion 18, and from the oil receiving portion 18, the rear surface 10 a of the main body 10 is moved downward. Flows down along the bottom of the oil recovery groove 19 extending to. On the other hand, a negative pressure is generated in the trough-shaped recess 13 in the front of the main body 10 due to the high speed running of the chain 3, so that part of the oil flowing down along the oil recovery groove 19 is in the middle of the oil recovery groove 19. It is composed of a main flow portion 21a and a tributary portion 21b which are sucked out to the side of the trough-shaped recess 13 under negative pressure through the through hole 20 formed in the bottom of the trough-shaped recess 13 and formed on the bottom sliding surface 13a of the trough-shaped recess 13. The oil groove 21 distributes the entire width of the bottom sliding surface 13a, so that the chain 3 and the bottom sliding surface 13a of the trough-shaped recess 13 are satisfactorily lubricated with oil. In addition, the oil flowing down the oil recovery groove 19 from both sides without being sucked into the through hole 20 is once converged by the throttle portion 19a below the through hole 20, so that the oil is collected in the oil recovery groove 19 below. Even in the opened through hole 20, an appropriate amount of oil is sucked out to the trough-shaped recess 13 side and supplied to the bottom sliding surface 13a. Moreover, according to this configuration, since the oil is captured on the rear surface 10a side of the main body 10, the oil is supplied to the bottom sliding surface 13a very stably without being affected by the running of the chain 3. be able to.
【００２０】 また、上記構成においては、図１２及び図１３に本考案の第七実施例として示 すように、オイル回収溝１９に、各透孔２０の開口部下縁に沿って突設されたＵ 字形の樋状の堰２２と、オイル回収溝１９の底面に左右等配状に形成されて上下 に延びるとともに、上端が絞り部１９ａの下端近傍で互いに間隔を狭めるよう収 束してなる筋状凹凸群２３とを有する構成を付加することが一層好ましい。すな わち、この構成によると、オイル回収溝１９の底面を伝って流れ落ちるオイルの うち、堰２２及び透孔２０の真上に位置する中央付近の筋状凹凸群群２３ａに沿 って流れ落ちるオイルが、前記堰２２によって透孔２０の開口部下縁で堰き止め られるので、樋状凹部１３側の負圧による透孔２０からの吸い込み作用によって 、摺動面１３ａへのオイル供給が確実になされる。また、前記筋状凹凸群群２３ ａの両側の筋状凹凸群群２３ｂ及び２３ｃに沿って流れ落ちるオイルは、前記堰 ２２の両側を通過してから、絞り部１９ａによって流れが収束され、この絞り部 １９ａの下側から左右両側へ徐々に広がるように延びる筋状凹凸群２３によって 、再びオイル回収溝１９の全幅に分配されるので、上記と同様に、中央付近の筋 状凹凸群群２３ａに沿って流れ落ちるオイルが、次の堰２２によって堰き止めら れ、透孔２０から樋状凹部１３側へ供給される。Further, in the above structure, as shown as a seventh embodiment of the present invention in FIGS. 12 and 13, the oil recovery groove 19 is provided so as to project along the lower edge of the opening of each through hole 20. A U-shaped gutter-shaped weir 22 and a line formed on the bottom surface of the oil recovery groove 19 so as to be evenly distributed in the left-right direction and extend in the vertical direction, and the upper ends thereof are close to each other in the vicinity of the lower end of the narrowed portion 19a and are converged. It is more preferable to add a configuration including the uneven group 23. That is, according to this configuration, among the oil that flows down along the bottom surface of the oil recovery groove 19, it flows down along the group of streaky irregularities 23a near the center located right above the weir 22 and the through hole 20. The oil is dammed by the weir 22 at the lower edge of the opening of the through hole 20, so that the suction action from the through hole 20 by the negative pressure on the side of the trough-like recess 13 ensures the oil supply to the sliding surface 13a. It The oil flowing down along the groups of streaky concavo-convex groups 23b and 23c on both sides of the streaky concavo-convex group 23a passes through both sides of the weir 22, and then the flow is converged by the constricted portion 19a. By the stripe-shaped concave-convex group 23 extending so as to gradually spread from the lower side of the portion 19a to the left and right sides, it is distributed over the entire width of the oil recovery groove 19 again. The oil flowing along is blocked by the next weir 22, and is supplied from the through hole 20 to the trough-shaped recess 13 side.
【００２１】 なお、上記実施例において、絞り部１９ａ、透孔２０の数は任意に設定でき、 また、筋状凹凸群２３の本数やその断面形状、オイル溝２１の本流部２１ａと支 流部２１ｂの形状等も適宜に変更可能である。In the above embodiment, the numbers of the narrowed portions 19a and the through holes 20 can be set arbitrarily, and the number and the cross-sectional shape of the streaky concavo-convex group 23, the main portion 21a of the oil groove 21 and the branch portions. The shape and the like of 21b can be appropriately changed.
【００２２】[0022]
本考案によると、次のような効果を奏することができる。 (1) 機関内で飛散したオイル飛沫の一部を捕獲して本体の樋状凹部に供給し、チ ェーンと樋状凹部内の摺動面との良好な油潤滑がなされるので、耐摩耗性が向上 するとともにチェーンの動力ロスが少なくなる。 (2) オイル飛沫をオイルガイドで捕獲する構成においては、前記潤滑作用による 摩擦係数の低下に加え、オイルガイドが一種の冷却フィンとしても作用するので 、摺動発熱を抑制することができる。 (3) 前記潤滑作用による摩擦係数の低下によって、本体に低摩擦材料であるＰＴ ＦＥ樹脂以外の、射出成形可能な樹脂材を用いることができ、生産コストを低下 させることができる。 (4) オイル飛沫を本体の背面側で捕獲し、透孔から樋状凹部に供給する構成とす ることによって、オイルの供給がチェーンの走行で阻害されることがなく、効率 良く樋状凹部内の摺動面の潤滑を行うことができる。 According to the present invention, the following effects can be achieved. (1) Part of the oil splashes scattered inside the engine is captured and supplied to the gutter-shaped recess of the main body, and good oil lubrication is provided between the chain and the sliding surface inside the gutter-shaped recess. Performance is improved and power loss of the chain is reduced. (2) In the configuration in which the oil droplets are captured by the oil guide, in addition to the reduction of the friction coefficient due to the lubricating action, the oil guide also functions as a kind of cooling fin, so that the sliding heat generation can be suppressed. (3) Due to the reduction of the friction coefficient due to the lubricating action, it is possible to use an injection-moldable resin material other than the PTFE resin, which is a low-friction material, for the main body, and it is possible to reduce the production cost. (4) Oil splash is captured on the back side of the main body and is supplied to the trough-shaped recess from the through hole, so that the oil supply is not obstructed by the running of the chain, and the trough-shaped recess can be efficiently used. The inner sliding surface can be lubricated.
【図１】本考案に係るチェーンスライダの第一実施例を
示す斜視図である。FIG. 1 is a perspective view showing a first embodiment of a chain slider according to the present invention.
【図２】図１におけるＡ−Ａ’断面図である。FIG. 2 is a sectional view taken along the line A-A ′ in FIG.
【図３】図１におけるＢ−Ｂ’断面図である。3 is a sectional view taken along the line B-B ′ in FIG.
【図４】同実施例の正面図である。FIG. 4 is a front view of the embodiment.
【図５】本考案に係るチェーンスライダの第二実施例を
示す分解斜視図である。FIG. 5 is an exploded perspective view showing a second embodiment of the chain slider according to the present invention.
【図６】同じく組立状態の要部斜視図である。FIG. 6 is a perspective view of an essential part in the same assembled state.
【図７】本考案に係るチェーンスライダの第三実施例を
示す要部斜視図である。FIG. 7 is a perspective view of a main part of a third embodiment of the chain slider according to the present invention.
【図８】本考案に係るチェーンスライダの第四実施例を
示す要部斜視図である。FIG. 8 is a perspective view of a main part of a chain slider according to a fourth embodiment of the present invention.
【図９】本考案に係るチェーンスライダの第五実施例を
示す分解斜視図である。FIG. 9 is an exploded perspective view showing a fifth embodiment of the chain slider according to the present invention.
【図１０】同じく組立状態の要部斜視図である。FIG. 10 is a perspective view of an essential part in the same assembled state.
【図１１】本考案に係るチェーンスライダの第六実施例
を示すもので、（イ）は背面側の要部斜視図、（ロ）は
正面側の要部斜視図である。11A and 11B show a sixth embodiment of the chain slider according to the present invention, wherein FIG. 11A is a rear perspective view of a main portion, and FIG. 11B is a front perspective view of the main portion.
【図１２】本考案に係るチェーンスライダの第七実施例
を示す要部背面図である。FIG. 12 is a rear view of a main portion of a chain slider according to a seventh embodiment of the present invention.
【図１３】図１２におけるＣ−Ｃ’断面図である。13 is a cross-sectional view taken along the line C-C ′ in FIG.
【図１４】従来のチェーンスライダを取り付けた内燃機
関の一部を示す説明図である。FIG. 14 is an explanatory view showing a part of an internal combustion engine to which a conventional chain slider is attached.
１０ 本体 １０ａ 背面 １１ 基板 １２ 側板 １３ 樋状凹部 １３ａ 底部摺動面 １４ 固定ピン １５ 切欠 １６ オイルガイド １６０ 傾斜板 １６０ａ 嵌合孔 １６０ｂ スリット １６１ 上端板 １６２ 背面板 １６３ 端板 １６３ａ スナップフィット １６４ 弾性体シート １６４ａ 嵌合突起 １６５ 固定用開口部 １６５ａ チェーン挿通溝 １７ 嵌合溝 １８ オイル受け部 １８ａ 側壁 １９ オイル回収溝 １９ａ 絞り部 ２０ 透孔 ２１ オイル溝 ２１ａ 本流部 ２１ｂ 支流部 ２２ 堰 ２３ 筋状凹凸群 10 main body 10a back surface 11 board 12 side plate 13 trough-shaped recess 13a bottom sliding surface 14 fixing pin 15 notch 16 oil guide 160 inclined plate 160a fitting hole 160b slit 161 upper end plate 162 back plate 163 end plate 163a snap fit 164 elastic body 164a Fitting protrusion 165 Fixing opening 165a Chain insertion groove 17 Fitting groove 18 Oil receiving part 18a Side wall 19 Oil recovery groove 19a Throttling part 20 Through hole 21 Oil groove 21a Main part 21b Tributary part 22 Weir 23 Streaky irregularity group
Claims (7)
下に案内する樋状凹部１３を有する本体１０に、上方か
つ前記樋状凹部１３の外部へ突出し、下端が前記樋状凹
部１３内に臨んだ傾斜板１６０を有する所要数のオイル
ガイド１６が設けられてなることを特徴とするチェーン
スライダ。1. A main body 10 having a trough-shaped recess 13 for guiding the running of a chain 3 of an internal combustion engine up and down on a front surface thereof, protruding upward and to the outside of the trough-shaped recess 13 and having a lower end inside the trough-shaped recess 13. A chain slider characterized in that a required number of oil guides 16 having facing inclined plates 160 are provided.
１６が、本体１０の側板１２に一体に形成されてなるこ
とを特徴とするチェーンスライダ。2. The chain slider according to claim 1, wherein the oil guide 16 is formed integrally with the side plate 12 of the main body 10.
１６の傾斜板１６０が、本体１０の樋状凹部１３の正面
側にあって、該オイルガイド１６の両側部が、前記本体
１０の側板１２に形成された嵌合溝１７に嵌着されてな
ることを特徴とするチェーンスライダ。3. The inclined plate 160 of the oil guide 16 is located on the front side of the gutter-shaped recess 13 of the main body 10, and both side portions of the oil guide 16 are side plates 12 of the main body 10 according to claim 1. A chain slider characterized by being fitted into a fitting groove 17 formed in the.
１６の傾斜板１６０の下端部に、本体１０の樋状凹部１
３内に向けて延びる弾性体シート１６４が取着されてな
ることを特徴とするチェーンスライダ。4. The gutter-shaped recess 1 of the main body 10 according to claim 3, wherein the lower end of the inclined plate 160 of the oil guide 16 is provided.
3. A chain slider, wherein an elastic sheet 164 extending inward is attached.
１６が弾性体からなり、正面の傾斜板１６０に左右に分
割可能なスリット１６０ｂが形成されてなることを特徴
とするチェーンスライダ。5. The chain slider according to claim 3, wherein the oil guide 16 is made of an elastic body, and the front inclined plate 160 is formed with slits 160b that can be divided into right and left.
下に案内する樋状凹部１３を有する本体１０の背面１０
ａ上端に形成されたオイル受け部１８と、このオイル受
け部１８から前記背面１０ａを下方へ延びるとともに中
途に所要数の絞り部１９ａを有するオイル回収溝１９
と、このオイル回収溝１９における前記各絞り部１９ａ
の上側位置に開設されて前記樋状凹部１３の底部摺動面
１３ａへ通じる透孔２０と、前記底部摺動面１３ａに形
成されて前記各透孔２０から下方へ延びる本流部２１ａ
及びこの本流部２１ａから左右斜め下方へ分岐して延び
る支流部２１ｂからなるオイル溝２１とを有することを
特徴とするチェーンスライダ。6. A back surface 10 of a main body 10 having a trough-shaped recess 13 for guiding the traveling of a chain 3 of an internal combustion engine up and down on the front surface
a Oil receiving section 18 formed at the upper end of the oil collecting section 19 and an oil collecting groove 19 extending downward from the oil receiving section 18 along the rear surface 10a and having a required number of throttle sections 19a in the middle thereof.
And each of the throttle portions 19a in the oil recovery groove 19
Through hole 20 which is opened at the upper position of the trough-shaped recess 13 and communicates with the bottom sliding surface 13a of the trough-shaped recess 13, and the main flow portion 21a which is formed in the bottom sliding surface 13a and extends downward from each of the through holes 20.
A chain slider comprising: an oil groove 21 formed of a tributary portion 21b extending from the main portion 21a in a diagonally downward right and left direction.
１９に、各透孔２０の開口部下縁に沿って突設された堰
２２と、各絞り部１９ａの下側から下方へ延びてオイル
の流れを前記オイル回収溝１９の左右全幅に分配する筋
状凹凸群２３を形成してなることを特徴とするチェーン
スライダ。7. The oil collecting groove 19 according to claim 6, wherein the weir 22 is provided so as to project along the lower edge of the opening of each through hole 20, and the oil is extended downward from the lower side of each throttle portion 19a. The chain slider is characterized in that a group of streaky concavities and convexities 23 is formed so as to distribute the above flow to the entire width of the oil recovery groove 19 on the left and right sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992009128U JP2596102Y2 (en) | 1991-11-29 | 1992-01-31 | Chain slider |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3-105746 | 1991-11-29 | ||
| JP10574691 | 1991-11-29 | ||
| JP1992009128U JP2596102Y2 (en) | 1991-11-29 | 1992-01-31 | Chain slider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0561549U true JPH0561549U (en) | 1993-08-13 |
| JP2596102Y2 JP2596102Y2 (en) | 1999-06-07 |
Family
ID=26343789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992009128U Expired - Fee Related JP2596102Y2 (en) | 1991-11-29 | 1992-01-31 | Chain slider |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2596102Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3321477A1 (en) * | 2016-11-09 | 2018-05-16 | Yamaha Hatsudoki Kabushiki Kaisha | Motorcycle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60100512U (en) * | 1983-12-14 | 1985-07-09 | スズキ株式会社 | Chain guide lubrication device |
-
1992
- 1992-01-31 JP JP1992009128U patent/JP2596102Y2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60100512U (en) * | 1983-12-14 | 1985-07-09 | スズキ株式会社 | Chain guide lubrication device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3321477A1 (en) * | 2016-11-09 | 2018-05-16 | Yamaha Hatsudoki Kabushiki Kaisha | Motorcycle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2596102Y2 (en) | 1999-06-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19990209 |
|
| LAPS | Cancellation because of no payment of annual fees |