JPH0624264Y2 - Four-wheel drive vehicle - Google Patents
Four-wheel drive vehicleInfo
- Publication number
- JPH0624264Y2 JPH0624264Y2 JP1986013182U JP1318286U JPH0624264Y2 JP H0624264 Y2 JPH0624264 Y2 JP H0624264Y2 JP 1986013182 U JP1986013182 U JP 1986013182U JP 1318286 U JP1318286 U JP 1318286U JP H0624264 Y2 JPH0624264 Y2 JP H0624264Y2
- Authority
- JP
- Japan
- Prior art keywords
- wheel drive
- axle
- drive vehicle
- viscous clutch
- axles
- 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
- Arrangement And Driving Of Transmission Devices (AREA)
- Retarders (AREA)
- Transmission Devices (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ この考案は前後の車軸間の回転差を吸収する機構として
粘性流体の抵抗を用いた動力伝達手段すなわちビスカス
クラッチを採用した四輪駆動車に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a four-wheel drive vehicle that employs a viscous fluid power transmission means, that is, a viscous clutch, as a mechanism for absorbing a rotational difference between front and rear axles. .
［従来技術］ 従来のこの種の四輪駆動車としては、例えば実開昭５９
−１８８７３１号公報に記載されているようなものがあ
る。これは、前述したビスカスクラッチが、前後両車軸
間を連結する軸上に設けられているか、あるいは左右両
後車輪間のデファレンシャル装置内の駆動側の動力が左
右両車輪に分配される前の位置に設けられている。[Prior Art] An example of a conventional four-wheel drive vehicle of this type is, for example, the actual development number 59
There is one such as that described in Japanese Patent Laid-Open No. 188731. This is because the above-mentioned viscous clutch is provided on the shaft that connects the front and rear axles, or the position before the drive-side power in the differential device between the left and right rear wheels is distributed to the left and right wheels. It is provided in.
［考案が解決しようとする問題点］ しかしながら、このような従来の四輪駆動車にあって
は、ビスカスクラッチを前車軸と後車軸との間に設ける
等の構成となっていることにより、駆動側のトルクがそ
のままビスカスクラッチに入力されて従動側に伝達され
るため、ビスカスクラッチにかかる動力が大きなものと
なり、したがってビスカスクラッチに発生する熱量も多
くなってクラッチ動作に悪影響を及ぼす結果となるので
ビスカスクラッチの容量を大きくしなければならず重量
増の問題が発生する。[Problems to be Solved by the Invention] However, in such a conventional four-wheel drive vehicle, since the viscous clutch is provided between the front axle and the rear axle, the drive is reduced. Since the torque on the side is input to the viscous clutch as it is and transmitted to the driven side, the power applied to the viscous clutch becomes large, and the amount of heat generated in the viscous clutch also increases, which adversely affects the clutch operation. The capacity of the viscous clutch must be increased, which causes a problem of increased weight.
この考案はこのような従来の問題点に着目して創案され
たもので、前後両車軸側相互の回転差を吸収する粘性流
体を用いた動力伝達手段で発生する熱によりその動作が
悪影響を受けることなく、動力伝達手段の容量を小さく
した四輪駆動車の提供を目的する。This invention was devised by focusing on such conventional problems, and its operation is adversely affected by the heat generated by the power transmission means using a viscous fluid that absorbs the rotation difference between the front and rear axles. The present invention aims to provide a four-wheel drive vehicle in which the capacity of the power transmission means is reduced.
［問題点を解決するための手段］ この目的を達成するためにこの考案は、駆動軸と連動連
結された前車軸と後車軸によって前後四輪を駆動する四
輪駆動車において、前記駆動軸に連結され左右の車軸を
介して夫々左右の両輪に駆動力を分配するデファレンシ
ャル装置と、前記車軸のいずれか一方の車軸側であっ
て、デファレンシャル装置と車輪との間で互いに相対回
転可能な部分間に設けられた粘性流体利用の動力伝達装
置とを有する構成とした。[Means for Solving the Problems] In order to achieve this object, the present invention relates to a four-wheel drive vehicle that drives front and rear four wheels by a front axle and a rear axle that are interlocked with a drive shaft. A differential device that is connected and distributes the driving force to the left and right wheels via the left and right axles respectively, and between the differential devices and the wheels that are relatively rotatable with respect to each other on the axle side of either one of the axles. And a power transmission device using a viscous fluid provided in the.
［実施例］ 以下、図面に基づきこの考案の実施例を説明する。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
第１図は四輪駆動車の後車軸まわりの概略的な平面図で
あり、図外の前車軸と後車軸１ａ，１ｂとを連動連結す
る駆動軸３と、後車軸１ａ，１ｂとの間には後車軸１
ａ，１ｂの両外端に取付けられた左右両車輪５ａ，５ｂ
間の回転差を吸収するデファレンシャル装置７が設けら
れており、このデファレンシャル装置７と左側の車輪５
ａとの間の後車軸１ａに粘性流体を用いた動力伝達手段
としてのビスカスクラッチ９が設けられている。このビ
スカスクラッチ９は、例えばカーブ走行時に前車軸と後
車軸１ａ，１ｂとの間で回転差が生じる際、この回転の
差動を吸収するものである。FIG. 1 is a schematic plan view around a rear axle of a four-wheel drive vehicle, and shows a drive shaft 3 for interlocking connection between a front axle and rear axles 1a, 1b (not shown) and rear axles 1a, 1b. Rear axle 1
Left and right wheels 5a and 5b attached to both outer ends of a and 1b
There is provided a differential device 7 for absorbing the rotation difference between the differential device 7 and the left wheel 5
A viscous clutch 9 as a power transmission means using a viscous fluid is provided on the rear axle 1a between the vehicle and a. The viscous clutch 9 absorbs the difference in rotation when a difference in rotation occurs between the front axle and the rear axles 1a and 1b when traveling on a curve, for example.
このようなビスカスクラッチ９が設けられた後車軸１ａ
および後車軸１ｂには、駆動軸３からの動力がデファレ
ンシャル装置７において左右二つに分配されたものが入
力される。このため、ビスカスクラッチ９に入力する駆
動トルクは、駆動軸３に与えられている動力の半分にな
り、ビスカスクラッチ駆動軸３上に設けた従来のものと
比較してビスカスクラッチで発生する熱は半減し、その
容量が小さくて済む。Rear axle 1a provided with such a viscous clutch 9
The rear axle 1b receives the power from the drive shaft 3 which is distributed to the left and right in the differential device 7. Therefore, the drive torque input to the viscous clutch 9 becomes half of the power applied to the drive shaft 3, and the heat generated by the viscous clutch is less than that of the conventional one provided on the viscous clutch drive shaft 3. It is halved and its capacity is small.
第２図は他の実施例を示すもので、これは左右の両後車
軸間に設けられ、両後車軸間の回転差を吸収するデファ
レンシャル装置の断面図である。デフケース１１は図外
の駆動軸に連結するドライブギヤにより回転可能となっ
ており、このデフケース１１内には差動歯車機構１３が
収納されている。差動歯車機構１３は、デフケース１１
に取付けられたピニオンシャフト１５、ピニオンシャフ
ト１５に対し回転可能に取付けられたピニオン１７、ピ
ニオン１７に噛合すると共にデフケース１１に対し回転
可能な図中で右側の後車軸１９に連結するサイドギヤ２
１、更にピニオン１７に噛合すると共にデフケース１１
に対し回転可能な図中で左側の後車軸２３側にビスカス
クラッチ２５を介して連結されるサイドギヤ２７等で構
成されている。FIG. 2 shows another embodiment, which is a sectional view of a differential device which is provided between the left and right rear axles and absorbs a rotation difference between the rear axles. The differential case 11 can be rotated by a drive gear connected to a drive shaft (not shown), and the differential gear mechanism 13 is housed in the differential case 11. The differential gear mechanism 13 includes a differential case 11
A pinion shaft 15 attached to the pinion 17, a pinion 17 rotatably attached to the pinion shaft 15, a side gear 2 meshing with the pinion 17 and rotatable with respect to the differential case 11 and connected to a rear axle 19 on the right side in the drawing.
1, and further engages with the pinion 17 and the differential case 11
On the other hand, it is composed of a side gear 27 and the like, which are connected to the rear axle 23 side on the left side in the figure via a viscous clutch 25, which is rotatable.
サイドギヤ２７は側板２９に一体成形されており、側板
２９の外周縁部の図中で左側にはスプライン結合された
筒状のスリーブ３１がデフケース１１に対し回転可能に
取付けられている。一方、左側の後車軸２３のデフケー
ス１１内外周部には、スリーブ３１より小径の段部３３
ａ，３３ｂを備えた筒状のスリーブ３３が後車軸２３に
スプライン結合しており、このスリーブ３３は段部３３
ａおよび段部３３ｂにおいてデフケース１１および側板
２９に対し回転可能に接触している。The side gear 27 is formed integrally with the side plate 29, and a cylindrical sleeve 31 spline-coupled is rotatably attached to the differential case 11 on the left side of the outer peripheral portion of the side plate 29 in the figure. On the other hand, a step portion 33 having a diameter smaller than that of the sleeve 31 is provided on the inner peripheral portion of the left rear axle 23 in the differential case 11.
A cylindrical sleeve 33 provided with a and 33b is splined to the rear axle 23, and the sleeve 33 has a step portion 33.
It is rotatably in contact with the differential case 11 and the side plate 29 at a and the step portion 33b.
そして、これらのデフケース１１、側板２９およびスリ
ーブ３１、３３により囲まれた密封室３５内には、シリ
コンオイル等の粘性流体が封入されていると共に、スリ
ーブ３１およびスリーブ３３にそれぞれ互いに対向し合
う状態で取付けられた回転板３７および回転板３９が配
置されている。こ回転板３７、３９および粘性流体等で
ビスカスクラッチ２５を構成しており、このビスカスク
ラッチ２５は定常の直進走行時には左側の後車軸２３と
サイドギヤ２７とを直結状態にする一方、例えばカーブ
走行特に前車軸と後車軸との間で回転差が生じる際、こ
の回転の差動を吸収する。A sealed chamber 35 surrounded by the differential case 11, the side plate 29, and the sleeves 31 and 33 is filled with a viscous fluid such as silicone oil and faces the sleeve 31 and the sleeve 33, respectively. The rotating plate 37 and the rotating plate 39 attached by are arranged. The rotating plates 37, 39 and a viscous fluid form a viscous clutch 25. The viscous clutch 25 keeps the left rear axle 23 and the side gear 27 in a directly connected state during steady straight traveling, while, for example, when traveling in a curve, When a rotation difference occurs between the front axle and the rear axle, this rotation differential is absorbed.
このようにビスカスクラッチ２５がデフケース１１内に
収納されたものにおいても、前述の実施例と同様に図外
の駆動軸からの動力が、デファレンシァル装置において
左右両車軸２３、１９の二つに分配され、ビスカスクラ
ッチ２５は動力が分配された左側の車軸２３側に設けら
れているので、ビスカスクラッチ２５に入力される動力
は駆動軸でのそれに対し半分となる。したがって、ビス
カスクラッチ２５で発生する熱は従来に比べ半減し、そ
の容量も小さいもので済む。Even in the case where the viscous clutch 25 is housed in the differential case 11 as described above, the power from the drive shaft (not shown) is distributed to the two left and right axles 23, 19 in the differential device as in the above-described embodiment. Since the viscous clutch 25 is provided on the left side axle 23 side to which the power is distributed, the power input to the viscous clutch 25 is half that of the drive shaft. Therefore, the heat generated by the viscous clutch 25 is halved as compared with the conventional one, and the capacity thereof is small.
［考案の効果］ 以上のようにこの考案によれば、粘性流体の抵抗を用い
動力伝達手段を駆動側からの動力が左右両車軸に分配さ
れた後の左右両車軸のどちらか一方に設けたため、動力
が分配される前の駆動軸側に設けた従来のものと比較し
て動力伝達手段にかかる動力は半分になり、したがって
この動力伝達手段で発生する熱が半減するので、その容
量を小さくすることができ、全体として重量の低減等を
図ることが可能となる。[Effect of the Invention] As described above, according to the present invention, the power transmission means is provided on one of the left and right axles after the power from the drive side is distributed to the left and right axles by using the resistance of the viscous fluid. , The power applied to the power transmission means is halved as compared with the conventional one provided on the drive shaft side before the power is distributed, and the heat generated in this power transmission means is halved, so that the capacity is reduced. Therefore, it is possible to reduce the weight as a whole.
第１図はこの考案の一実施例を示す四輪駆動車の後車軸
まわりの概略的な平面図、第２図は他の実施例を示す四
輪駆動車のデファレンシャル装置の断面図である。 １ａ，１ｂ……後車軸、３……駆動軸 ９……ビスカスクラッチ（動力伝達手段）FIG. 1 is a schematic plan view around a rear axle of a four-wheel drive vehicle showing an embodiment of the present invention, and FIG. 2 is a sectional view of a differential device of a four-wheel drive vehicle showing another embodiment. 1a, 1b ... rear axle, 3 ... drive shaft 9 ... viscous clutch (power transmission means)
Claims (1)
よって前後四輪を駆動する四輪駆動車において、前記駆
動軸に連結され左右の車軸を介して夫々左右の両輪に駆
動力を分配するデファレンシャル装置と、前記車軸のい
ずれか一方の車軸側であって、デファレンシャル装置と
車輪との間で互いに相対回転可能な部分間に設けられた
粘性流体利用の動力伝達装置とを有することを特徴とす
る四輪駆動車。1. A four-wheel drive vehicle in which front and rear four wheels are driven by a front axle and a rear axle that are interlocked with a drive shaft, and a driving force is applied to both the left and right wheels via the left and right axles that are connected to the drive shaft. A differential device for distributing, and a power transmission device using a viscous fluid provided between any one of the axles on the side of the axle, which is relatively rotatable between the differential device and the wheel. A featured four-wheel drive vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986013182U JPH0624264Y2 (en) | 1986-02-03 | 1986-02-03 | Four-wheel drive vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986013182U JPH0624264Y2 (en) | 1986-02-03 | 1986-02-03 | Four-wheel drive vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62125616U JPS62125616U (en) | 1987-08-10 |
| JPH0624264Y2 true JPH0624264Y2 (en) | 1994-06-29 |
Family
ID=30801999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986013182U Expired - Lifetime JPH0624264Y2 (en) | 1986-02-03 | 1986-02-03 | Four-wheel drive vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624264Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA824400B (en) * | 1981-06-26 | 1983-04-27 | Ferguson Ltd Harry | Differential drive arrangement |
-
1986
- 1986-02-03 JP JP1986013182U patent/JPH0624264Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62125616U (en) | 1987-08-10 |
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