JPH03169791A - Front wheel drive device for 2 wheel drive motor cycle - Google Patents
Front wheel drive device for 2 wheel drive motor cycleInfo
- Publication number
- JPH03169791A JPH03169791A JP31215189A JP31215189A JPH03169791A JP H03169791 A JPH03169791 A JP H03169791A JP 31215189 A JP31215189 A JP 31215189A JP 31215189 A JP31215189 A JP 31215189A JP H03169791 A JPH03169791 A JP H03169791A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- dog
- front wheel
- hub
- joint
- 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.)
- Pending
Links
- 241000282472 Canis lupus familiaris Species 0.000 description 18
- 230000008439 repair process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、前後輪駆動自動二輪車の前輪駆動装置に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a front wheel drive device for a front and rear wheel drive motorcycle.
自動二輪車には、エンジンで後輪を駆動すると共に、エ
ンジンで前輪も駆動するようにした前後輪駆動自動二輪
車がある。この前後輪が駆動される自動二輪車は、滑り
易い路面でも前後輪が駆動されてスムースに走行できる
利点がある。前輪を駆動するには、前輪を前ホークで操
舵するので、操舵に支障がないように、二本のドライブ
シャフトで駆動したり、ステアリングシャフト内にドラ
イブシャフトを通して駆動するようにしている。Motorcycles include front and rear wheel drive motorcycles in which the engine drives the rear wheels and the engine also drives the front wheels. This motorcycle, in which the front and rear wheels are driven, has the advantage of being able to drive the front and rear wheels and run smoothly even on slippery roads. To drive the front wheels, the front wheels are steered by the front forks, so to avoid any problems with steering, the front wheels are driven by two drive shafts, or by passing the drive shaft through the steering shaft.
例えば、実開昭６３−１７３８９５号公報、特開昭５８
−１６７２８２号公報参照。For example, Japanese Utility Model Application No. 63-173895, Japanese Unexamined Patent Publication No. 58
See Publication No.-167282.
前輪を左右両側のドライブシャフトで駆動するものは、
前輪の両側にベベルギヤーが取付けられ、パンクなどで
前輪を簡単に着脱できない不便がある。又、ステアリン
グシャフトにドライブシャフトを通すものは、前ホーク
の組付け分解が簡単にできない不便がある。The front wheels are driven by drive shafts on both the left and right sides.
Bevel gears are attached to both sides of the front wheel, making it inconvenient that the front wheel cannot be easily attached or detached in the event of a puncture. Additionally, the drive shaft that passes through the steering shaft has the inconvenience that the front fork cannot be easily assembled and disassembled.
この発明は、かかる点に鑑み、一本のドライブシャフト
で前輪を駆動でき、しかも、前輪の着脱が簡単にできて
、バンク修理などのときに都合−がよい前後輪駆動自動
二輪車の前輪駆動装置を得ることを目的とする。In view of the above, the present invention has been devised as a front wheel drive system for front and rear wheel drive motorcycles, which can drive the front wheels with a single drive shaft, and also allows the front wheels to be easily attached and detached, making it convenient for bank repairs, etc. The purpose is to obtain.
上記目的を達成するために、この発明の前後輪駆動自動
二輪車の前輪駆動装置は、エンジンで前ホークのステア
リング軸直下に設けた等速ジョイントを介し、更にギヤ
ーでカウンター軸を介してドライブシャフトを駆動し、
ドライブシャフトに朕合せたドリブンシャフトのべベル
ビニオンに前輪のべベルギャを噛合せるようにし、前ホ
ーク下部のアウターチューブに連結した下部ギヤーケー
スにベアリングを取付け、該ベアリングに、ベベルギヤ
ーとジョイントとを挾んで締着し、ジョイントに設けた
ドッグに前輪のハブの雌ドッグを弾性ブッシュを介在さ
せて噛合せ、ハブを車軸で前ホークに回転自在に取付け
るようにしたことにある。In order to achieve the above object, the front wheel drive device of the front and rear wheel drive motorcycle of the present invention has an engine that connects the drive shaft via a constant velocity joint provided directly below the steering axis of the front fork, and a gear that connects the drive shaft via a counter shaft. drive,
The bevel gear of the front wheel is meshed with the bevel binion of the driven shaft that is matched with the drive shaft, and a bearing is attached to the lower gear case connected to the outer tube at the lower part of the front fork, and the bevel gear and joint are sandwiched between the bearing. The female dog of the front wheel hub is engaged with the dog provided in the joint through an elastic bush, and the hub is rotatably attached to the front fork by the axle.
前輪は、エンジンで、等速ジョイント、カウンター軸、
ドライブシャフト、ドリブンシャフト、ベベルピ二オン
、ベベルギヤーを介し、前輪のハブが、ベベルギヤーに
連結したジョイントのドッグに噛合せてあって、エンジ
ンで駆動できる。そして、前輪は、車軸を抜取り、ハブ
の雌ドッグをジョイントのドッグから外すことによって
、簡単に取外すことができる。こうしてパンク修理など
のときに、前輪を簡単に着脱できる。又、等速ジョイン
トは、前ホークの操舵中心のステアリング軸の直下に設
けてあるので、操舵に支障を与えないようにできる。又
、前輪のショックは、弾性ブッシュで緩和できる。The front wheel is an engine, constant velocity joint, counter shaft,
Through the drive shaft, driven shaft, bevel pinion, and bevel gear, the front wheel hub meshes with the dog of the joint connected to the bevel gear, and can be driven by the engine. The front wheel can then be easily removed by removing the axle and removing the female dog of the hub from the dog of the joint. This allows you to easily attach and detach the front wheel when repairing a puncture. Further, since the constant velocity joint is provided directly below the steering shaft at the center of steering of the front fork, it can be prevented from interfering with steering. Also, the shock to the front wheels can be alleviated with an elastic bush.
以下、本発明の実施例を図面によって説明する。 Embodiments of the present invention will be described below with reference to the drawings.
エンジン１は、断接操作するクラッチと多段歯車変速機
が内蔵してあり、そのドライブ軸２に、後部チェン３を
介して後輪４を連結し、後輪４を駆動回転させる。一方
、ドライブ軸２に、前部チェン５を介して回転差吸収兼
トルク配分装置６に連桔し、更に、連結チェン７を介し
て、等速ジョイント８の人力側に連結する。フレーム９
の前端のへッドバイブ１０には、前ホーク１１のステア
リング軸１２を回動して操舵できるように軸着してあり
、等速ジョイント８は、操舵に支承ないように、ステア
リング軸１２の直下に設けてある。The engine 1 has a built-in clutch and a multi-gear transmission that can be connected and disconnected, and a rear wheel 4 is connected to the drive shaft 2 via a rear chain 3 to drive and rotate the rear wheel 4. On the other hand, the drive shaft 2 is connected to a rotation difference absorbing/torque distribution device 6 via a front chain 5, and further connected to a constant velocity joint 8 on the human power side via a connecting chain 7. frame 9
A steering shaft 12 of the front fork 11 is attached to the head vibe 10 at the front end of the front fork 11 so that the steering shaft 12 can be rotated and steered. It is provided.
等速ジョイント８の出力側は、前ホーク１１に設けた上
部ギヤーケース１３に軸着し、一対のギヤ−１４で、『
１ｊ側に軸着したカウンター軸１５に連結している。一
対のギヤ−１４は、前輪１６の回転方向に回転を合せて
いる。カウンター軸１５の先端のベベルピニオン１７を
、ｉライブシャフト１８のベベルギャ−１９に噛合せる
。ドライブシャフト１８の下部は、中空のドリブンシャ
フト２０に挿入し、回転一体て、前ホーク１１のアウタ
ーチューブ２１のクッションと共に、摺動自在に連結す
る。前ホーク１１の下部のアウターチューブ２１の片側
には、下部ギヤーケース２２が連結してある。下部ギヤ
ーケース２２内で、ドリブンシャフト２０の下端のベベ
ルピニオン２３とベベルギャ−２４を噛合せてある。下
部ギヤーケース２２にベアリング２５のアウターを取付
け、ベアリング２５のインナーには、内外からベベルギ
ャ−２４とジョイント２６で挾んで締着する。ジョイン
ト２６には、ドッグ２７が設けてあり、ドッグ２７を、
前輪１６のハブ２８の側面に設けた雌ドッグ２９に弾性
ブッシュ３０を介して噛合せる。ハブ２８は、車軸３１
に回転自在に軸架し、車軸３１は、片方の前ホーク１１
のアウターチューブ２１と下部ギヤーケース２２に締着
する。こうして、エンジン１で、前輪１６を駆動回転さ
せることができる。前輪１６は、車軸３１を抜取り、ハ
ブ２８の雌ドッグ２９をドッグ２７から外すことによっ
て、簡単に取外すことができる。弾性ブッシュ３０は、
ドッグ２７と雌ドッグ２９間の衝撃を吸収緩和する。The output side of the constant velocity joint 8 is pivoted to an upper gear case 13 provided on the front fork 11, and a pair of gears 14 are connected to the output side of the constant velocity joint 8.
It is connected to a counter shaft 15 that is pivoted on the 1j side. The pair of gears 14 rotate in the direction of rotation of the front wheels 16. The bevel pinion 17 at the tip of the counter shaft 15 is engaged with the bevel gear 19 of the i-live shaft 18. The lower part of the drive shaft 18 is inserted into a hollow driven shaft 20 and is rotatably connected to the cushion of the outer tube 21 of the front fork 11 so as to be slidable therein. A lower gear case 22 is connected to one side of the outer tube 21 at the lower part of the front fork 11. Inside the lower gear case 22, a bevel pinion 23 at the lower end of the driven shaft 20 and a bevel gear 24 are engaged. The outer part of the bearing 25 is attached to the lower gear case 22, and the inner part of the bearing 25 is sandwiched and tightened by the bevel gear 24 and the joint 26 from the inside and outside. The joint 26 is provided with a dog 27, and the dog 27 is
It meshes with a female dog 29 provided on the side surface of a hub 28 of the front wheel 16 via an elastic bush 30. The hub 28 is connected to the axle 31
The axle 31 is rotatably mounted on one front fork 11.
the outer tube 21 and lower gear case 22. In this way, the engine 1 can drive and rotate the front wheels 16. The front wheel 16 can be easily removed by removing the axle 31 and removing the female dog 29 of the hub 28 from the dog 27. The elastic bush 30 is
The impact between the dog 27 and the female dog 29 is absorbed and alleviated.
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、前輪を一本のドライブシャフトでエンジンから
動力を伝達して駆動回転させることができ、等速ジョイ
ントをステアリング軸直下に設けてあるので、操舵に支
障がなく、全体に軽量にできる。そして、前輪のハブは
、雌ドッグを設けて、ベベルギヤーのジョイントのドッ
グに噛合せるようにしてあるので、車軸を抜取り、ドッ
グの噛合せを外すことによって、前輪を簡単に取外すこ
とができて、パンク修理などの作業性をよくできる。又
、ドッグの噛合の衝撃は、弥性ブッシュで吸収緩和でき
る。As explained above, since the present invention is configured as described above, the front wheels can be driven and rotated by transmitting power from the engine through a single drive shaft, and a constant velocity joint is provided directly below the steering shaft. Because of this, there is no problem with steering and the overall weight can be reduced. The front wheel hub has a female dog that meshes with the dog of the bevel gear joint, so the front wheel can be easily removed by removing the axle and disengaging the dog. Improves work efficiency such as puncture repair. In addition, the impact of the dog's engagement can be absorbed and alleviated by the ambiguous bushing.
図は本発明の一実施例を示し、
第１図は前ホーク部分の要部縦断正面図、第２図は同一
部縦断側面図、
第３図は全体平面図、
第４図は同側面図、
である。
１・・・エンジン、８・・・等速ジョイント、１１・・
・前ホーク、１２・・・ステアリング軸、１４・・・ギ
ヤ−１５・・・カウンター軸、１６・・・前輪、１８・
・・ドライブシャフト、２０・・・ドリブンシャフト、
２１・・・アウターチューブ、２２・・・下部ギヤーケ
ース、２３・・・べベルピ二オン、２４・・・ベベルギ
ャ− ２５・・・ベアリング、２６・・・ジョイント、
２７・・・ドッグ、２８・・・ハブ、２つ・・・雌ドッ
グ、３０・・・弥性ブッシュ、３１・・・車軸。The drawings show an embodiment of the present invention. Fig. 1 is a longitudinal sectional front view of the main part of the front fork, Fig. 2 is a longitudinal sectional side view of the same part, Fig. 3 is an overall plan view, and Fig. 4 is a side view of the same part. , is. 1...Engine, 8...Constant velocity joint, 11...
・Front fork, 12...Steering shaft, 14...Gear-15...Counter shaft, 16...Front wheel, 18.
...Drive shaft, 20...Driven shaft,
21... Outer tube, 22... Lower gear case, 23... Bevel pinion, 24... Bevel gear 25... Bearing, 26... Joint,
27...Dog, 28...Hub, 2...Female dogs, 30...Massive bushing, 31...Axle.
Claims (1)
ジョイントを介し、更にギヤーでカウンター軸を介して
ドライブシャフトを駆動し、ドライブシャフトに嵌合せ
たドリブンシャフトのベベルピニオンに前輪のベベルギ
ヤーを噛合せるようにし、前ホーク下部のアウターチュ
ーブに連結した下部ギヤーケースにベアリングを取付け
、該ベアリングに、ベベルギヤーとジョイントとを挾ん
で締着し、ジョイントに設けたドッグに前輪のハブの雌
ドッグを弾性ブッシュを介在させて噛合せ、ハブを車軸
で前ホークに回転自在に取付けるようにしたことを特徴
とする前後輪駆動自動二輪車の前輪駆動装置。The engine drives the drive shaft via a constant velocity joint installed directly under the steering shaft of the front fork, and the gear drives the drive shaft via the counter shaft, and the bevel gear of the front wheel meshes with the bevel pinion of the driven shaft fitted to the drive shaft. Then, attach a bearing to the lower gear case connected to the outer tube at the bottom of the front fork, sandwich and tighten the bevel gear and joint to the bearing, and connect the female dog of the front wheel hub to the dog provided in the joint with an elastic bush. A front wheel drive device for a front and rear wheel drive motorcycle, characterized in that the hub is rotatably attached to the front fork by an axle by interposing the hub to the front fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31215189A JPH03169791A (en) | 1989-11-30 | 1989-11-30 | Front wheel drive device for 2 wheel drive motor cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31215189A JPH03169791A (en) | 1989-11-30 | 1989-11-30 | Front wheel drive device for 2 wheel drive motor cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03169791A true JPH03169791A (en) | 1991-07-23 |
Family
ID=18025859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31215189A Pending JPH03169791A (en) | 1989-11-30 | 1989-11-30 | Front wheel drive device for 2 wheel drive motor cycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03169791A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7593795B2 (en) * | 2002-05-31 | 2009-09-22 | Quantum Engineering, Inc. | Method and system for compensating for wheel wear on a train |
-
1989
- 1989-11-30 JP JP31215189A patent/JPH03169791A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7593795B2 (en) * | 2002-05-31 | 2009-09-22 | Quantum Engineering, Inc. | Method and system for compensating for wheel wear on a train |
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