JP2717310B2 - Front and rear wheel drive motorcycle - Google Patents
Front and rear wheel drive motorcycleInfo
- Publication number
- JP2717310B2 JP2717310B2 JP16384089A JP16384089A JP2717310B2 JP 2717310 B2 JP2717310 B2 JP 2717310B2 JP 16384089 A JP16384089 A JP 16384089A JP 16384089 A JP16384089 A JP 16384089A JP 2717310 B2 JP2717310 B2 JP 2717310B2
- Authority
- JP
- Japan
- Prior art keywords
- continuously variable
- variable belt
- fixed pulley
- rear wheel
- wheel
- 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 - Fee Related
Links
Landscapes
- Transmissions By Endless Flexible Members (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は、砂地や軟弱路面の走行に適する前後輪駆
動自動二輪車に関する。Description: TECHNICAL FIELD The present invention relates to a front-rear-wheel drive motorcycle suitable for traveling on sandy ground or a soft road surface.
（従来の技術） 一般に、自動二輪車は、エンジンに手動クラッチを介
して多段歯車変速機を連結し、更にチエンで後輪に連結
して、エンジンで後輪を駆動して走行し、前輪で操舵す
るようになっている。そして、走行速度に応じて、適宜
多段歯車変速機の変速歯車と選択切換えして走行するよ
うになっている。又、差動クラッチなどを介して、伝動
軸の出力を分岐し、前輪も駆動するようにしたものがあ
る。例えば、特開昭58-206477号公報参照。(Prior Art) In general, a motorcycle has a multi-gear transmission connected to an engine via a manual clutch, further connected to a rear wheel by a chain, driven by the engine to drive the rear wheel, and driven by the front wheel. It is supposed to. Then, according to the traveling speed, the traveling is performed by appropriately selecting and switching the transmission gear of the multi-stage gear transmission. Further, there is a type in which the output of a transmission shaft is branched via a differential clutch or the like so that the front wheels are also driven. For example, see JP-A-58-206477.
（発明が解決しようとする課題） エンジンで後輪だけを駆動する自動二輪車は、後輪が
スリップすると走行できなくなり、砂地や軟弱路面をス
ムースに走行できない。又、前後輪を駆動するもので
は、前輪の操舵による後輪との回転差を吸収するため
に、差動クラッチ又は差動装置を設ける必要がある。し
かも差動装置は、片側の車輪がスリップしたとき、他の
側の車輪に駆動力が伝わって走行できるノンスリップ装
置を設ける必要があって、装置が大きくなると共に、製
造コストも高くつく。又、砂地や軟弱路面では、路面の
抵抗が大きいので、多段歯車変速機では、変速歯車の切
換え操作をしている間に車速が大きく低下し、スムース
な走行ができない不便がある。(Problems to be Solved by the Invention) A motorcycle that drives only the rear wheels with an engine cannot run when the rear wheels slip, and cannot run smoothly on sandy or soft road surfaces. In the case of driving the front and rear wheels, it is necessary to provide a differential clutch or a differential device in order to absorb a rotation difference between the front wheels and the rear wheels due to steering. In addition, the differential device needs to be provided with a non-slip device capable of traveling by transmitting a driving force to the other wheel when one wheel slips, which increases the size of the device and increases the manufacturing cost. On a sandy ground or a soft road surface, the resistance of the road surface is large. Therefore, in the case of the multi-stage gear transmission, the vehicle speed is greatly reduced while the shifting gear is being changed, and there is an inconvenience that the vehicle cannot travel smoothly.
この発明は、かかる点に鑑み、エンジンのクランク軸
の一端に、二つの無段ベルト変速機を連結し、二つの無
段ベルト変速機で前輪と後輪を各々駆動して、前後輪の
回転差を無段ベルト変速機で吸収すると共に無段変速で
スムースに走行でき、しかも、二つの無段ベルト変速機
をクランク軸の一端にコンパクトに取付けて、軽量で安
価に生産できる前後輪駆動自動二輪車を得ることを目的
とする。In view of the foregoing, the present invention connects two continuously variable belt transmissions to one end of a crankshaft of an engine, and drives the front wheels and the rear wheels with the two continuously variable belt transmissions, thereby rotating the front and rear wheels. Front and rear wheel drive automatic that absorbs the difference with a continuously variable belt transmission, can run smoothly with continuously variable transmission, and has two compactly mounted continuously variable belt transmissions at one end of the crankshaft for lightweight and inexpensive production. The purpose is to get 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に、この発明の前後輪駆動自
動二輪車は、エンジンのクランク軸の一端に、二つの無
段ベルト変速機を連結し、二つの無段ベルト変速機で各
々前輪と後輪を駆動するようにし、クランク軸に連結す
る駆動側プーリーの固定プーリーを中央にして、その両
側に二つの無段ベルト変速機の可動プーリーを設けて固
定プーリーを共用するようにしたことである。(Means for Solving the Problems) In order to achieve the above object, a front and rear wheel drive motorcycle according to the present invention has two continuously variable belt transmissions connected to one end of a crankshaft of an engine. The front and rear wheels are driven by the belt transmission, respectively.The fixed pulley of the driveless pulley connected to the crankshaft is centered, and the movable pulleys of the two continuously variable belt transmissions are provided on both sides of the fixed pulley. That is to share.
（作用） 二つの無段ベルト変速機は、クランク軸の回転上昇に
よって二つの駆動側プーリーの可動プーリーが、遠心ウ
エイトの広がりで固定プーリー側に可動することによっ
て、ベルトの巻掛け径を大きくして無段に自動増速す
る。そして、固定プーリーは、両側にベルトの当り面を
設けて、二つの無段ベルト変速機の駆動側プーリーを兼
ねて共用しているので、クランク軸に取付ける長さを短
くでき、クランク軸の長さを短くできて、コンパクト軽
量にできる。そして、二つの無段ベルト変速機で、各々
前輪と後輪を駆動し、前後輪の回転差を吸収でき、無段
で自動変速するので砂地や軟弱路面をスムースに走行で
き、片側の車輪がスリップしても、他の側の車輪が駆動
されてスムースに走行できる。(Operation) The two continuously variable belt transmissions increase the belt winding diameter by moving the movable pulleys of the two drive-side pulleys to the fixed pulley side by the spread of the centrifugal weights due to the rotation rise of the crankshaft. Speed increase automatically. The fixed pulley is provided with a contact surface for the belt on both sides and is also used as a drive pulley for the two continuously variable belt transmissions. It can be shortened, and can be made compact and lightweight. The two continuously variable belt transmissions drive the front and rear wheels, respectively, to absorb the difference in rotation between the front and rear wheels, and to automatically change the speed continuously, so that it can run smoothly on sandy or soft road surfaces, Even if the vehicle slips, the wheels on the other side are driven and can run smoothly.
（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１のクランク軸２の一端に、二つの無段ベル
ト変速機3,4の駆動側プーリー5,6を取付ける。駆動側プ
ーリ5,6は、可動プーリー7,8と固定プーリー９が対にな
っており、可動プーリー7,8には、遠心ウエイト10,11が
内装されており、回転の上昇によって遠心ウエイト10,1
1が斜面に沿って外側に広がり、可動プーリー7,8を固定
プーリー９側に可動させ近ずけ、ベルトの巻掛け径を大
きくする。固定プーリー９は、両側の面がテーパーのベ
ルト当り面にしてあって、二つの無段ベルト変速機3,4
の固定プーリー９を兼ねている。このため、固定プーリ
ー９は、一つでよく、クランク軸２を短くコンパクトで
軽量にできる。一方の無段ベルト変速機３の被動プーリ
ー11は、クランク軸２の後側に配置し、発進用の遠心ク
ラッチ12と歯車減速機13を介し、更にチエン14を介して
車輪15に連結する。他方の無段ベルト変速機４の被動プ
ーリー16は、クランク軸２の前上方に配置し、発進用の
遠心クラッチ17と歯車減速機18を介し、更にチエン19を
介して前輪20に連結する。前輪20を取付けた前ホーク21
は、ハンドル22で左右に回動させて操舵するようになっ
ており、チエン19の中間軸23に等速ボールジョイント24
が設けてある。At one end of the crankshaft 2 of the engine 1, the drive pulleys 5, 6 of the two continuously variable belt transmissions 3, 4 are attached. The drive-side pulleys 5 and 6 have movable pulleys 7 and 8 and a fixed pulley 9 as a pair. The movable pulleys 7 and 8 have centrifugal weights 10 and 11 therein. , 1
1 spreads outward along the slope, and the movable pulleys 7 and 8 are moved closer to the fixed pulley 9 to approach them, thereby increasing the belt winding diameter. The fixed pulley 9 has tapered belt contact surfaces on both sides, and has two continuously variable belt transmissions 3 and 4.
Also serves as the fixed pulley 9. Therefore, only one fixed pulley 9 is required, and the crankshaft 2 can be made short, compact, and lightweight. The driven pulley 11 of the continuously variable belt transmission 3 is disposed on the rear side of the crankshaft 2 and is connected to wheels 15 via a starting centrifugal clutch 12 and a gear reducer 13 and further via a chain 14. The driven pulley 16 of the other continuously variable belt transmission 4 is disposed above and in front of the crankshaft 2, and is connected to a front wheel 20 via a starting centrifugal clutch 17 and a gear reducer 18 and further via a chain 19. Front Hawk 21 with front wheel 20 attached
The steering wheel 22 is rotated left and right by a steering wheel 22, and a constant velocity ball joint 24 is attached to an intermediate shaft 23 of the chain 19.
Is provided.
エンジン１を回転（アイドリング）させると、二つの
無段ベルト変速機3,4が回転する。そして、少しエンジ
ン１の回転を上昇させると、発進用の遠心クラッチ12,1
7が接続し、前輪20及び後輪15が駆動されて、走行が開
始される。更に、エンジン１の回転を上昇させると、無
段ベルト変速機3,4が増速して、走行速度が速くなる。When the engine 1 is rotated (idling), the two continuously variable belt transmissions 3 and 4 rotate. Then, when the rotation of the engine 1 is slightly increased, the centrifugal clutch 12
7 are connected, the front wheel 20 and the rear wheel 15 are driven, and traveling starts. When the rotation of the engine 1 is further increased, the speed of the continuously variable belt transmissions 3 and 4 is increased, and the traveling speed is increased.
（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、一つの駆動側プーリーの固定プーリーが、二つ
の無段ベルト変速機の固定プーリーを兼ねていて、クラ
ンク軸の長さが短くできる。そして、二つの無段ベルト
変速機が、前輪の操舵による後輪との回転差を吸収でき
るので、差動クラッチなどを備える必要がなく、全体に
小型軽量で安価に生産できる。又、二つの無段ベルト変
速機が、無段に自動変換するので、砂地や軟弱路面でス
ムースに走行でき、片側の車輪がスリップしても、他の
車輪が駆動されているので、スリップ地点も乗り越える
ことができる。(Effect of the Invention) As described above, since the present invention is configured as described above, the fixed pulley of one drive pulley also serves as the fixed pulley of two continuously variable belt transmissions, Length can be shortened. Since the two continuously variable belt transmissions can absorb the rotation difference between the front wheels and the rear wheels due to steering, there is no need to provide a differential clutch or the like, so that the whole can be produced in a small, lightweight and inexpensive manner. In addition, the two continuously variable belt transmissions automatically convert continuously, so they can run smoothly on sandy or soft roads, and even if one wheel slips, the other wheel is driven, so the slip point Can also get over.
図は本発明の一実施例を示し、 第１図は要部の縦断展開平面図、 第２図は要部のサイドケースを外した側面図、 第３図は駆動系全体の側面図、 第４図は同平面図、 である。 １……エンジン、２……クランク軸、３……無段ベルト
変速機、５……無段ベルト変速機、５……駆動側プーリ
ー、６……駆動側プーリー、７……可動プーリー、８…
…可動プーリー、９……固定プーリー、15……後輪、20
……前輪。FIG. 1 shows an embodiment of the present invention. FIG. 1 is a longitudinally developed plan view of a main part, FIG. 2 is a side view of a main part with a side case removed, FIG. FIG. 4 is a plan view of the same. DESCRIPTION OF SYMBOLS 1 ... Engine, 2 ... Crankshaft, 3 ... Continuously variable belt transmission, 5 ... Continuously variable belt transmission, 5 ... Driving pulley, 6 ... Driving pulley, 7 ... Movable pulley, 8 …
... Movable pulley, 9 ... Fixed pulley, 15 ... Rear wheel, 20
……front wheel.
Claims (1)
段ベルト変速機を連結し、二つの無段ベルト変速機で各
々前輪と後輪を駆動するようにし、クランク軸に連結す
る駆動側プーリーの固定プーリーを中央にして、その両
側に二つの無段ベルト変速機の可動プーリーを設けて固
定プーリーを共用するようにしたことを特徴とする前後
輪駆動自動二輪車。1. A drive side connected to one end of a crankshaft of an engine, wherein two continuously variable belt transmissions are connected to each other, and the two continuously variable belt transmissions drive front wheels and rear wheels, respectively. A front / rear wheel drive motorcycle characterized in that a fixed pulley is set at the center and two movable belt pulleys of a continuously variable belt transmission are provided on both sides thereof to share the fixed pulley.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16384089A JP2717310B2 (en) | 1989-06-28 | 1989-06-28 | Front and rear wheel drive motorcycle |
| KR1019900009453A KR930000710B1 (en) | 1989-06-28 | 1990-06-26 | Front and rear wheel drive motorcycle |
| DE69005375T DE69005375T2 (en) | 1989-06-28 | 1990-06-27 | Front and rear wheel drive motorcycle. |
| ES90112270T ES2047210T3 (en) | 1989-06-28 | 1990-06-27 | MOTORCYCLE WITH TRACTION ON THE FRONT AND REAR WHEELS. |
| EP90112270A EP0405509B1 (en) | 1989-06-28 | 1990-06-27 | Front and rear wheel drive motorcycle |
| CA002020001A CA2020001C (en) | 1989-06-28 | 1990-06-27 | Front and rear wheel drive motorcycle |
| AU57983/90A AU622565B2 (en) | 1989-06-28 | 1990-06-28 | Front and rear wheel drive motorcycle |
| US07/545,912 US5113964A (en) | 1989-06-28 | 1990-06-28 | Front and rear wheel drive motorcycle |
| NZ234281A NZ234281A (en) | 1989-06-28 | 1990-06-28 | Front and rear drive motorcycle with speed change belt mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16384089A JP2717310B2 (en) | 1989-06-28 | 1989-06-28 | Front and rear wheel drive motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0331086A JPH0331086A (en) | 1991-02-08 |
| JP2717310B2 true JP2717310B2 (en) | 1998-02-18 |
Family
ID=15781751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16384089A Expired - Fee Related JP2717310B2 (en) | 1989-06-28 | 1989-06-28 | Front and rear wheel drive motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2717310B2 (en) |
-
1989
- 1989-06-28 JP JP16384089A patent/JP2717310B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0331086A (en) | 1991-02-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees | ||
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313532 |
|
| R370 | Written measure of declining of transfer procedure |
Free format text: JAPANESE INTERMEDIATE CODE: R370 |