JP3044740B2 - Motorcycle clutch noise reduction device - Google Patents
Motorcycle clutch noise reduction deviceInfo
- Publication number
- JP3044740B2 JP3044740B2 JP2100460A JP10046090A JP3044740B2 JP 3044740 B2 JP3044740 B2 JP 3044740B2 JP 2100460 A JP2100460 A JP 2100460A JP 10046090 A JP10046090 A JP 10046090A JP 3044740 B2 JP3044740 B2 JP 3044740B2
- Authority
- JP
- Japan
- Prior art keywords
- clutch
- cover
- cowling
- motorcycle
- dry
- 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 - Lifetime
Links
Landscapes
- Mechanical Operated Clutches (AREA)
Description
【発明の詳細な説明】 (産業上の利用分野) この発明は、自動二輪車のクラッチ音低減装置に関す
る。Description: TECHNICAL FIELD The present invention relates to a clutch noise reduction device for a motorcycle.
(従来の技術) 自動二輪車は、エンジンのクランク軸と多段歯車変速
機の間にクラッチを連結し、クラッチを切って多段歯車
変速機の変速歯車の切換えを行うようにしてある。クラ
ッチは、潤滑オイルで潤滑しながら使用する湿式多板ク
ラッチを用いるときと、潤滑しない乾式多板クラッチを
用いるときがある。湿式多板クラッチの場合は、オイル
バス中で使用し、ケースで覆ってあるので、クラッチ音
が発生しても外に洩れる音を少くできる。乾式多板クラ
ッチの場合は、エンジンケースの側面に乾式多板クラッ
チを露出させて取付け、風に当ててクラッチの摩擦熱を
冷すことができるようにしている。(発明が解決しよう
とする課題) 乾式多板クラッチは、クラッチハウジングに挿入した
駆動摩擦板と、スリーブハブに挿入した被動摩擦板を重
ね合せ、プレシャープレートで押付けて、駆動摩擦板と
被動摩擦板の間の摩擦で、動力を伝達するようになって
いる。プレシャープレートを引離して、駆動摩擦板と被
動摩擦板の間に隙間を作ってクラッチを切ると、駆動摩
擦板及び被動摩擦板がフリーになり、エンジンのトルク
変動などで振られて、打音を発生する。そして、乾式多
板クラッチは露出しているので、この打音を直接外に放
射し、大きいクラッチ音を発生する不都合がある。(Prior Art) In a motorcycle, a clutch is connected between a crankshaft of an engine and a multi-gear transmission, and the clutch is disengaged to change the transmission gear of the multi-gear transmission. The clutch may be a wet multi-plate clutch used while lubricating with lubricating oil, or a dry multi-plate clutch without lubrication. In the case of a wet multi-plate clutch, since it is used in an oil bath and covered with a case, even if a clutch noise is generated, it is possible to reduce the sound leaking out. In the case of a dry-type multi-plate clutch, the dry-type multi-plate clutch is exposed and mounted on the side of the engine case so that the friction heat of the clutch can be cooled by being exposed to wind. (Problems to be Solved by the Invention) In a dry type multi-plate clutch, a driving friction plate inserted into a clutch housing and a driven friction plate inserted into a sleeve hub are overlapped and pressed by a pressure plate, so that a distance between the driving friction plate and the driven friction plate is reduced. The friction is used to transmit power. When the pressure plate is separated and a gap is created between the driving friction plate and the driven friction plate and the clutch is disengaged, the driving friction plate and the driven friction plate become free and are shaken due to engine torque fluctuations, etc. I do. Since the dry type multi-plate clutch is exposed, there is a disadvantage that the tapping sound is directly radiated to the outside and a loud clutch sound is generated.
この発明は、かかる点に鑑み、内側に吸音材を張った
カバーで乾式クラッチの外側を覆って吸音材に吸音させ
て放射音を低減しながら、カバー内に冷却風を導いて冷
却もできる自動二輪車のクラッチ音低減装置を得ること
を目的とする。In view of the foregoing, the present invention provides an automatic cover that covers the outside of a dry clutch with a cover having a sound absorbing material on the inside and absorbs the sound with the sound absorbing material so as to reduce radiated sound, and also guides cooling air into the cover to perform cooling. An object of the present invention is to obtain a clutch noise reduction device for a motorcycle.
(課題を解決するための手段) 上記目的を達成するため、この発明の自動二輪車のク
ラッチ音低減装置は、エンジンケースの側面に乾式クラ
ッチを突出して設けた自動二輪車において、自動二輪車
の側面を覆うカウリングを乾式クラッチの外側に配置
し、内側に吸音材を設けた有底円筒状のカバーをカウリ
ングに取付けると共に、カバーの前側に連結した導風パ
イプと、カバーの後側に連結した排風パイプとをカウリ
ングに取り付けたものである。(Means for Solving the Problems) In order to achieve the above object, a motorcycle clutch noise reduction device according to the present invention covers a side surface of a motorcycle in a motorcycle provided with a dry clutch protruding from a side surface of an engine case. A cowling is placed outside the dry clutch, a bottomed cylindrical cover with sound absorbing material inside is attached to the cowling, and a wind guide pipe connected to the front of the cover and an exhaust pipe connected to the back of the cover. And attached to the cowling.
(作用) 乾式クラッチを切ると、駆動摩擦板と被動摩擦板が自
由になって振れ、クラッチ音を発生するが、乾式クラッ
チを覆ったカバーの内側に張った吸音材で、クラッチ音
を吸音でき、放射するクラッチ音を低減できる。又、カ
バー内には、導風パイプから走行で受ける風が導入さ
れ、乾式クラッチが発生する摩擦による熱を冷却し、排
風パイプから後方に排風できる。そして、カバーはカウ
リングに取付けるので、ステーなどの取付け部品を必要
とせずに安価に取付けることができ、着脱も簡単にでき
る。(Operation) When the dry clutch is disengaged, the driving friction plate and the driven friction plate are free to oscillate and generate a clutch sound. However, the sound absorbing material stretched inside the cover that covers the dry clutch can absorb the clutch sound. The radiated clutch noise can be reduced. In addition, the wind received during traveling from the air guide pipe is introduced into the cover, and the heat generated by the friction generated by the dry clutch is cooled, and the wind can be exhausted backward from the exhaust pipe. Further, since the cover is attached to the cowling, it can be attached at low cost without requiring any attachment parts such as stays, and can be easily attached and detached.
(実施例) 以下、本発明の実施例を図面によって説明する。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
エンジンケース1には、乾式クラッチ2を側面に突出
させ、露出させて取付けてある。一方、自動二輪車の前
面から前部側面を覆うようにカウリング3を取付けてあ
る。カウリング3の乾式クラッチ2の外側になる部分
に、円形の孔4を穿設する。カバー5は、有底円筒状
で、内側に、グラスウールなどで成形した吸音材6を張
る。そして、カバー5には、前後に窓孔7を設ける。カ
バー5は、カウリング3の孔4に挿入して粘着テープな
どで止め、カバー5で乾式クラッチ2の外側を覆う。カ
バー5の内面に張った吸音材6は、乾式クラッチ2が発
生するクラッチ音を吸収し、外側に放出するクラッチ音
を低減できる。カバー5の前側の窓孔7は、カウリング
3の内側に取付けた導風パイプ8の後端に連通させる。
導風パイプ8の前端は、カウリング3の前部に設けた導
風口9に連結する。カバー5の後側の窓孔7は、カウリ
ング3の内側後部に設けた排風パイプ10の前端に連通さ
せる。走行で受ける風は、導風口9から導風パイプ8を
通ってカバー5内に入り、乾式クラッチ2を冷却して、
排風パイプ10に排出される。カバー5は、カウリング3
の孔4に沿って回動でき、カバー5を回動させることに
よって、窓孔7が、導風パイプ8及び排風パイプ10に連
通する面積を変えることによって、カバー5内に通す風
量を加減できる。又、レースのような場合には、カバー
5を簡単に取外すこともできる。A dry clutch 2 is attached to the engine case 1 so as to project from the side surface and to be exposed. On the other hand, the cowling 3 is attached so as to cover the front side surface from the front surface of the motorcycle. A circular hole 4 is formed in a portion of the cowling 3 outside the dry clutch 2. The cover 5 has a bottomed cylindrical shape, and has a sound absorbing material 6 formed of glass wool or the like stretched inside. The cover 5 is provided with window holes 7 at the front and rear. The cover 5 is inserted into the hole 4 of the cowling 3 and fixed with an adhesive tape or the like, and the outside of the dry clutch 2 is covered with the cover 5. The sound absorbing material 6 stretched on the inner surface of the cover 5 can absorb the clutch sound generated by the dry clutch 2 and reduce the clutch sound emitted to the outside. The window hole 7 on the front side of the cover 5 communicates with the rear end of the wind guide pipe 8 attached inside the cowling 3.
The front end of the wind guide pipe 8 is connected to a wind guide port 9 provided at the front of the cowling 3. The window hole 7 on the rear side of the cover 5 communicates with the front end of an exhaust pipe 10 provided at the rear inside the cowling 3. The wind received during traveling enters the cover 5 from the wind guide port 9 through the wind guide pipe 8, cools the dry clutch 2,
The air is discharged to the exhaust pipe 10. Cover 5 is cowling 3
By rotating the cover 5, the area of the window hole 7 communicating with the wind guide pipe 8 and the exhaust pipe 10 can be adjusted to adjust the amount of air passing through the cover 5. it can. In the case of a race, the cover 5 can be easily removed.
(発明の効果) 以上説明したように、この発明は、上述のように構成
したので、エンジンケースの側面に突出させて設けた乾
式クラッチを、内面に吸音材を張ったカバーで覆って、
吸音材によってクラッチ音を吸収させることができ、外
部に放出するクラッチ音を低減できる。そして、カバー
には、導風パイプを通して、走行で受ける風を導入でき
て、乾式クラッチを冷却でき、冷却風量も調節できる。
又、カバーは、カウリングを利用して取付けるので、取
付けが簡単にでき、取外すのも簡単にできる。(Effect of the Invention) As described above, since the present invention is configured as described above, the dry clutch protrudingly provided on the side surface of the engine case is covered with a cover having an inner surface covered with a sound absorbing material,
The clutch sound can be absorbed by the sound absorbing material, and the clutch sound released to the outside can be reduced. Then, the wind received during traveling can be introduced into the cover through the air guide pipe, the dry clutch can be cooled, and the amount of cooling air can be adjusted.
Further, since the cover is attached using the cowling, the cover can be easily attached and removed.
図は本発明の一実施例を示し、 第1図は縦断面図、 第2図は要部の横断面図、 第3図全体側面図、 である。 1……エンジンケース、2……乾式クラッチ、3……カ
ウリング、5……カバー、6……吸音材、8……導風パ
イプ、10……排風パイプ。1 shows an embodiment of the present invention. FIG. 1 is a longitudinal sectional view, FIG. 2 is a transverse sectional view of a main part, and FIG. 1 ... engine case, 2 ... dry clutch, 3 ... cowling, 5 ... cover, 6 ... sound absorbing material, 8 ... wind guide pipe, 10 ... exhaust pipe.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭59−127929(JP,U) 実開 昭58−162223(JP,U) 実開 昭59−166031(JP,U) 実開 昭51−123479(JP,U) 実開 昭58−189836(JP,U) 実開 昭61−122118(JP,U) (58)調査した分野(Int.Cl.7,DB名) B62J 23/00 B62J 17/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Open to the public 1984-127929 (JP, U) Open to the public 58-162223 (JP, U) Open to the public 1984-166031 (JP, U) Open to the public 51- 123479 (JP, U) Japanese Utility Model 1983--189836 (JP, U) Japanese Utility Model Utility Model 61-122118 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) B62J 23/00 B62J 17 / 00
Claims (1)
出して設けた自動二輪車において、自動二輪車の側面を
覆うカウリングを乾式クラッチの外側に配置し、内側に
吸音材を設けた有底円筒状のカバーをカウリングに取付
けると共に、カバーの前側に連結した導風パイプと、カ
バーの後側に連結した排風パイプとをカウリングに取り
付けたことを特徴とする自動二輪車のクラッチ音低減装
置。1. A motorcycle having a dry clutch protruding from a side surface of an engine case, a cowling for covering a side surface of the motorcycle disposed outside the dry clutch, and a bottomed cylindrical cover provided with a sound absorbing material inside. And a wind guide pipe connected to the front side of the cover and an exhaust pipe connected to the rear side of the cover are mounted on the cowling, the clutch noise reduction device for a motorcycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2100460A JP3044740B2 (en) | 1990-04-18 | 1990-04-18 | Motorcycle clutch noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2100460A JP3044740B2 (en) | 1990-04-18 | 1990-04-18 | Motorcycle clutch noise reduction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH042585A JPH042585A (en) | 1992-01-07 |
| JP3044740B2 true JP3044740B2 (en) | 2000-05-22 |
Family
ID=14274524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2100460A Expired - Lifetime JP3044740B2 (en) | 1990-04-18 | 1990-04-18 | Motorcycle clutch noise reduction device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3044740B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008272867A (en) * | 2007-04-27 | 2008-11-13 | Kondo Seisakusho:Kk | Parallel hands with lock mechanism |
| JP5570940B2 (en) * | 2010-10-26 | 2014-08-13 | 本田技研工業株式会社 | Saddle riding |
-
1990
- 1990-04-18 JP JP2100460A patent/JP3044740B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH042585A (en) | 1992-01-07 |
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