JP2992109B2 - Rotational force switching device - Google Patents

Rotational force switching device

Info

Publication number
JP2992109B2
JP2992109B2 JP3064793A JP6479391A JP2992109B2 JP 2992109 B2 JP2992109 B2 JP 2992109B2 JP 3064793 A JP3064793 A JP 3064793A JP 6479391 A JP6479391 A JP 6479391A JP 2992109 B2 JP2992109 B2 JP 2992109B2
Authority
JP
Japan
Prior art keywords
shaft
drive shaft
output shaft
clutch
input shaft
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
Application number
JP3064793A
Other languages
Japanese (ja)
Other versions
JPH04300429A (en
Inventor
健一郎 伊藤
博海 野尻
健郎 安達
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ENUTEIENU KK
Original Assignee
ENUTEIENU KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ENUTEIENU KK filed Critical ENUTEIENU KK
Priority to JP3064793A priority Critical patent/JP2992109B2/en
Publication of JPH04300429A publication Critical patent/JPH04300429A/en
Application granted granted Critical
Publication of JP2992109B2 publication Critical patent/JP2992109B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】この発明は、回転力切換え装置に
関し、例えば車両の発進時における駆動力の切換えに利
用できる。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotational force switching device, and can be used, for example, for switching a driving force when a vehicle starts moving.

【0002】[0002]

【従来の技術及びその課題】車両の発進や停止時におい
て、タイヤと路面の間に生じる摩擦係数は、路面状態に
関係なく、スリップ率が所定の範囲にあるときに最大の
値を示す。このため、従来から車両を安定して発進又は
停止させるため、摩擦係数が最大の値となるように車体
速度や車輪速度を制御して、スリップ率を所定の範囲に
コントロールする手段が多くとられている。
2. Description of the Related Art When a vehicle starts or stops, a coefficient of friction generated between a tire and a road surface has a maximum value when the slip ratio is within a predetermined range, regardless of the road surface condition. For this reason, conventionally, in order to stably start or stop the vehicle, many means have been used to control the vehicle speed and the wheel speed so that the friction coefficient becomes a maximum value, and to control the slip ratio within a predetermined range. ing.

【0003】特に、凍結路面や雪道等での発進において
は、タイヤに急激に大きな回転力を与えると、タイヤが
激しくスリップして駆動が全く行なわれないために、電
子制御により適切なブレーキングを加えつつタイヤに回
転力を与えて、タイヤと路面との間の摩擦を細かくコン
トロールする方法が提案されている。
In particular, when the vehicle is started on a frozen road surface or a snowy road, if a large rotational force is applied to the tires suddenly, the tires slip sharply and no driving is performed. A method of finely controlling the friction between the tire and the road surface by applying a rotational force to the tire while adding the force to the tire has been proposed.

【0004】しかし、このような摩擦を制御する方法で
は、車輪速度等を検出する検出器や、電子制御装置、或
いはその制御信号に基づいてブレーキ装置を作動させる
作動部材などを備える必要があるため、駆動系の構造が
複雑化して価格的に著しく高価なものとなり、重量の増
大等も引き起こす欠点がある。
However, in such a method of controlling friction, it is necessary to provide a detector for detecting a wheel speed or the like, an electronic control device, or an operating member for operating a brake device based on a control signal thereof. However, there is a disadvantage that the structure of the drive system is complicated and the cost is extremely high, and the weight is increased.

【0005】また、装置が高価なために、高級車や特殊
な車両だけに採用範囲が限定されてしまい、大衆車等の
廉価な車両には採用しにくい問題もある。
[0005] Further, since the device is expensive, the range of application is limited only to luxury cars and special vehicles, and there is also a problem that it is difficult to adopt it to inexpensive vehicles such as popular cars.

【0006】そこで、この発明は、電子制御等によらず
に、出力側における抵抗の大きさに応じて自動的に回転
力を切換えることができる簡単で廉価な構造の回転力切
換え装置を提供することを目的としている。
Accordingly, the present invention provides a simple and inexpensive rotating force switching device capable of automatically switching the rotating force in accordance with the magnitude of the resistance at the output side without using electronic control or the like. It is intended to be.

【0007】[0007]

【課題を解決するための手段】上記のような課題を解決
するため、この発明は、入力軸に連結する第1駆動軸
と、出力軸に連結するねじり変形可能な第2駆動軸を粘
性流体層を介して連結し、出力軸と第1駆動軸の間に、
出力軸の回りを回動する係合子によって両者を係合離脱
するクラッチを組み込むと共に、その係合子の作動部材
を第2駆動軸に連結し、前記第1駆動軸に2種類の歯数
のギヤを設け、一方のギヤは入力軸に形成されたギヤと
噛み合い、他方のギヤはクラッチの出力部材に形成され
たギヤと噛み合っている構成を採用したものである
In order to solve the above-mentioned problems, the present invention provides a first drive shaft connected to an input shaft and a torsional deformable second drive shaft connected to an output shaft. Connected via a layer, between the output shaft and the first drive shaft,
A clutch for disengaging and disengaging the two with an engaging element that rotates about an output shaft is incorporated, and an operating member of the engaging element is connected to a second drive shaft, and the first drive shaft has two types of gears. And one of the gears is the same as the gear formed on the input shaft.
The other gear is formed on the output member of the clutch.
The gear is configured to mesh with the gear .

【0008】[0008]

【作用】上記の構造において、クラッチを切離した状態
で入力軸を回転させると、粘性流体層の内部でせん断抵
抗が生じ、その流体のせん断作用によって第2駆動軸に
徐々にトルクが加わる。このため、第2駆動軸はゆっく
りと回り、出力軸には小さな回転力が伝えられる。
In the above structure, when the input shaft is rotated with the clutch disengaged, a shear resistance is generated inside the viscous fluid layer, and a torque is gradually applied to the second drive shaft by the shearing action of the fluid. For this reason, the second drive shaft rotates slowly, and a small torque is transmitted to the output shaft.

【0009】出力軸に加わる摩擦力が大きくなると、第
2駆動軸がねじり変形し、作動部材により係合子が回さ
れ、クラッチが出力軸と第1駆動軸を係合する。このた
め、入力軸の回転力は、第1駆動軸を介して直接出力軸
に伝えられる。この場合、出力軸に第2駆動軸を変形さ
せるだけの摩擦力が加わわっている間は、クラッチの係
合が保持され、第1駆動軸を経由した伝達経路が維持さ
れる。
When the frictional force applied to the output shaft increases, the second drive shaft is torsionally deformed, the engaging member is turned by the operating member, and the clutch engages the output shaft with the first drive shaft. For this reason, the torque of the input shaft is transmitted directly to the output shaft via the first drive shaft. In this case, while the frictional force for deforming the second drive shaft is applied to the output shaft, the engagement of the clutch is maintained, and the transmission path via the first drive shaft is maintained.

【0010】[0010]

【実施例】以下、添付図面に基づいて説明する。BRIEF DESCRIPTION OF THE DRAWINGS FIG.

【0011】図1に示すように、この実施例の回転力切
換え装置は、ケーシング1の内部に軸方向に向き合せて
入力軸2と出力軸3を回転可能に支持し、その両軸2、
3に並列して第1駆動軸4を回転可能に支持している。
As shown in FIG. 1, the rotational force switching device of this embodiment rotatably supports an input shaft 2 and an output shaft 3 inside a casing 1 so as to face each other in the axial direction.
The first drive shaft 4 is rotatably supported in parallel with the first drive shaft 3.

【0012】出力軸3には、軸線に沿って軸孔6を形成
し、その軸孔6に、バネ鋼などのねじり変形可能な材料
から成る第2駆動軸5を挿入する。この第2駆動軸5の
一方の端部5aは、ピン7を介して出力軸3に固定し、
出力軸3から突させた第2駆動軸5の他方の端部5b
を、入力軸2に設けた有底孔8内に挿入する。また、有
底孔8内部には、入力軸2と第2駆動5を連結する粘性
流体層9を設ける。
A shaft hole 6 is formed in the output shaft 3 along the axis, and a second drive shaft 5 made of a torsionally deformable material such as spring steel is inserted into the shaft hole 6. One end 5a of the second drive shaft 5 is fixed to the output shaft 3 via a pin 7,
The other end 5b of the second drive shaft 5 protruding from the output shaft 3
Is inserted into the bottomed hole 8 provided in the input shaft 2. A viscous fluid layer 9 that connects the input shaft 2 and the second drive 5 is provided inside the bottomed hole 8.

【0013】この有底孔8の内部の連結構造は、所謂ビ
スカスカップリングを形成するものであり、第2駆動軸
5の端部に一体に固定したインナーシャフト10の周面
と、入力軸2の有底孔8の内周面に、それぞれスペーサ
11を介して交互に多数のプレート12を突出させ、そ
の各プレート12の間にシリコンオイル等の粘性流体層
9を充填して構成される。この構造では、入力軸2が回
転すると、入力軸と第2駆動軸に粘着する粘性流体層9
の内部にせん断抵抗が発生し、第2駆動軸5の周面にト
ルクを発生させる。
The connection structure inside the bottomed hole 8 forms a so-called viscous coupling. The peripheral surface of the inner shaft 10 integrally fixed to the end of the second drive shaft 5 and the input shaft 2 A large number of plates 12 are alternately projected from the inner peripheral surface of the bottomed hole 8 via spacers 11, and a viscous fluid layer 9 such as silicon oil is filled between the plates 12. In this structure, when the input shaft 2 rotates, the viscous fluid layer 9 adheres to the input shaft and the second drive shaft.
Generates a shearing resistance inside, and generates a torque on the peripheral surface of the second drive shaft 5.

【0014】また、第2駆動軸5の中央部には、出力軸
3のピン孔13に挿通させた半径方向の作動ピン14を
固定し、その作動ピン14の端部に、出力軸3と第1駆
動軸4を係合離脱させるクラッチ15を連結する。
At the center of the second drive shaft 5, an operating pin 14 in the radial direction inserted through the pin hole 13 of the output shaft 3 is fixed. A clutch 15 for engaging and disengaging the first drive shaft 4 is connected.

【0015】このクラッチ15は、図2に示すように、
出力軸3の周面に軸受16、16によって外輪17を回
転可能に支持し、その外輪17に、第1駆動軸4の周面
のギヤ歯18と噛み合うギヤ歯19を一体に形成し、そ
の外輪17と出力軸3の対向面に形成した円筒形の係合
面20、21の間に、回動する大径の作動保持器22
と、出力軸3に固定される小径の固定保持器23を組込
んでいる。
This clutch 15 is, as shown in FIG.
An outer ring 17 is rotatably supported on the peripheral surface of the output shaft 3 by bearings 16, 16, and gear teeth 19 meshing with gear teeth 18 on the peripheral surface of the first drive shaft 4 are integrally formed on the outer ring 17. A rotating large-diameter operation retainer 22 is provided between cylindrical engagement surfaces 20 and 21 formed on the outer ring 17 and the opposed surface of the output shaft 3.
And a small-diameter fixed retainer 23 fixed to the output shaft 3.

【0016】また、作動保持器22と固定保持器23に
対向して設けた複数のポケット24、25に、係合子と
してのスプラグ26と、そのスプラグの姿勢を制御する
弾性部材27とをそれぞれ組込み、作動保持器22に上
記作動ピン14を一体に固定している。
A sprag 26 as an engaging element and an elastic member 27 for controlling the attitude of the sprag are incorporated in a plurality of pockets 24 and 25 provided opposite to the operation retainer 22 and the fixed retainer 23, respectively. The operation pin 14 is integrally fixed to the operation holder 22.

【0017】上記スプラグ26は、図4に示すように、
内径側と外径側がスプラグの中央線上に曲線中心をもつ
弧状面28で形成され、左右の両方向に所定角度傾く
と、両係合面20、21と係合して外輪17と出力軸3
を一体化する。また、弾性部材27は、作動保持器22
に支持し、通常時スプラグ27の両側面を押圧して弧状
面28が係合面20、21に係合しない中立位置に保持
する。
The sprag 26 is, as shown in FIG.
The inner diameter side and the outer diameter side are formed by an arcuate surface 28 having a curved center on the center line of the sprag, and when inclined by a predetermined angle in both the left and right directions, the outer ring 17 and the output shaft 3 engage with both engagement surfaces 20 and 21.
Are integrated. Further, the elastic member 27 is attached to the operation holder 22.
During normal operation, the sprags 27 are pressed against both side surfaces to hold the sprags 27 at a neutral position where the arcuate surfaces 28 do not engage with the engaging surfaces 20 and 21.

【0018】上記の作動ピン14は、図3に示すよう
に、第2駆動軸5と作動保持器22に対してはすき間な
く一体で連結するが、ピン孔13との間には回転方向す
き間29を設ける。その回転方向すき間29の大きさ
は、スプラグ26が中立位置から弾性部材27を介して
係合面20、21に係合するまでの距離よりも大きく設
定する。
As shown in FIG. 3, the operation pin 14 is integrally connected to the second drive shaft 5 and the operation retainer 22 without any gap. 29 are provided. The size of the rotational gap 29 is set to be larger than the distance from the neutral position to the engagement of the sprags 26 with the engagement surfaces 20 and 21 via the elastic member 27.

【0019】一方、入力軸2と向き合う第2駆動軸5の
周面にはギヤ歯30を形成し、そのギヤ歯30と噛み合
うギヤ歯31を入力軸2の外周面に形成して、入力軸2
と第1駆動軸4が一体で回転するようにする。
On the other hand, gear teeth 30 are formed on the peripheral surface of the second drive shaft 5 facing the input shaft 2, and gear teeth 31 meshing with the gear teeth 30 are formed on the outer peripheral surface of the input shaft 2. 2
And the first drive shaft 4 are integrally rotated.

【0020】この実施例の回転切換え装置は、上記のよ
うな構造であり、これを車両の発進時における回転力の
切換に用いるには、ケーシング1を車体に固定し、車両
のプロペラシャフトの途中に入力軸2と出力軸3を連結
する。この場合、後で理由を説明するように、プロペラ
シャフトの回転数に比べて入力軸2の回転数が常に速く
なるように、プロペラシャフトと入力軸の間のギヤ比を
適宜設定する。
The rotation switching device of this embodiment has the above-described structure. To use the rotation switching device for switching the rotation force when the vehicle starts moving, the casing 1 is fixed to the vehicle body, and the rotation switching device is located in the middle of the propeller shaft of the vehicle. To the input shaft 2 and the output shaft 3. In this case, as will be described later, the gear ratio between the propeller shaft and the input shaft is appropriately set such that the rotation speed of the input shaft 2 is always higher than the rotation speed of the propeller shaft.

【0021】入力軸2が回転しない状態では、弾性部材
27の保持によりスプラグ26が中立位置にあってクラ
ッチ15が切れた状態にある。出力軸3に抵抗が無く、
入力軸2が回転すると、第1駆動軸4は出力軸3に対し
てクラッチ係合しない。
When the input shaft 2 does not rotate, the sprag 26 is in the neutral position by the holding of the elastic member 27, and the clutch 15 is in a disengaged state. There is no resistance on output shaft 3,
When the input shaft 2 rotates, the first drive shaft 4 does not engage the clutch with the output shaft 3.

【0022】このため、入力軸2の回転力は、粘性流体
層9のせん断作用により徐々に第2駆動軸5に伝わり、
第2駆動軸5を介して出力軸3を回転させる。
For this reason, the rotational force of the input shaft 2 is gradually transmitted to the second drive shaft 5 by the shearing action of the viscous fluid layer 9,
The output shaft 3 is rotated via the second drive shaft 5.

【0023】この場合、入力軸2から入力される回転数
差が小さいと、粘性流体層9の内部に発生するせん断抵
抗も小さく、伝達されるトルクも小さいので、極めてゆ
っくりと出力軸3が回される。このため、雪道や凍結路
面等の摩擦係数が小さい路面においても、スムーズに発
進することができる。
In this case, when the difference in the number of revolutions input from the input shaft 2 is small, the shear resistance generated inside the viscous fluid layer 9 is small and the transmitted torque is also small, so that the output shaft 3 rotates very slowly. Is done. Therefore, the vehicle can start smoothly even on a road surface with a small friction coefficient such as a snowy road or a frozen road surface.

【0024】このように第2駆動軸5を介して回転力が
伝わると、第2駆動軸5はピン7と粘性流体層9の間で
ねじられる。この第2駆動軸がねじり変形するバネ力の
値を、雪道や凍結路面等におけるタイヤと路面間の摩擦
係数に釣り合うように設定しておくと、車両がゆっくり
と発進した段階で作動ピン14と作動保持器22が回さ
れてスプラグ26が両係合面20、21に係合し、クラ
ッチ15が出力軸3と第1駆動軸4を一体化する。した
がって、車両が発進してタイヤに十分な摩擦力が生じた
時点で、入力軸2の回転が第1駆動軸4を介して出力軸
3に伝わり、出力軸3は大きな回転力で駆動させること
ができる。
When the rotational force is transmitted through the second drive shaft 5 as described above, the second drive shaft 5 is twisted between the pin 7 and the viscous fluid layer 9. If the value of the spring force at which the second drive shaft is torsionally deformed is set so as to be balanced with the friction coefficient between the tire and the road surface on a snowy road, a frozen road surface, or the like, the operation pin 14 is started when the vehicle starts slowly. Then, the operation retainer 22 is rotated, the sprag 26 is engaged with the engagement surfaces 20 and 21, and the clutch 15 integrates the output shaft 3 and the first drive shaft 4. Therefore, when the vehicle starts and a sufficient frictional force is generated in the tires, the rotation of the input shaft 2 is transmitted to the output shaft 3 via the first drive shaft 4, and the output shaft 3 is driven with a large rotational force. Can be.

【0025】また、この場合、上記したように入力軸2
がプロペラシャフトの回転数に対して速く回転するよう
に設定してあるので、摩擦係数の高い路面を走行中など
路面から出力軸3に大きな抵抗が加わっている間は、常
にクラッチ15の係合状態が保持され、出力軸3は入力
軸2と直結状態で駆動されることになる。
In this case, as described above, the input shaft 2
Is set to rotate faster than the rotation speed of the propeller shaft, so that the clutch 15 is always engaged while a large resistance is applied to the output shaft 3 from the road surface, such as when traveling on a road surface having a high friction coefficient. The state is maintained, and the output shaft 3 is driven in a state of being directly connected to the input shaft 2.

【0026】上記の図1の構造において、入力軸2を直
接第1駆動軸4に連結し、第1駆動軸4を介して粘性流
体層9を回転させるようにしても、同じ作用を得ること
ができる。この場合は、入力軸2と出力軸3の回転が逆
向きになる。
In the structure shown in FIG. 1, even if the input shaft 2 is directly connected to the first drive shaft 4 and the viscous fluid layer 9 is rotated via the first drive shaft 4, the same effect can be obtained. Can be. In this case, the rotations of the input shaft 2 and the output shaft 3 are reversed.

【0027】なお、クラッチの係合子としてのスプラグ
は、一方向の傾きによって係合するスプラグを左右方向
組み合せて用いてもよく、又、ローラを利用することも
できる。
As the sprags as the clutch engagement members, sprags engaged by one-way inclination may be used in combination in the left-right direction, or rollers may be used.

【0028】また、粘性流体層による連結構造としてビ
スカスカップリングを示したが、これに限らず、粘性流
体を利用した他のカップリング構造を利用することもで
きる。
Although the viscous coupling has been described as a connecting structure using a viscous fluid layer, the present invention is not limited to this, and another coupling structure using a viscous fluid may be used.

【0029】[0029]

【効果】以上のように、この発明によると、入力軸に連
結する第1駆動軸と、出力軸に連結するねじり変形可能
第2駆動軸を粘性流体層を介して連結し、出力軸と第
1駆動軸の間に、出力軸の回りを回動する係合子によっ
て両者を係合離脱するクラッチを組み込むと共に、その
係合子の作動部材を第2駆動軸に連結し、第1駆動軸に
2種類の歯数のギヤを設け、一方ギヤを入力軸に形成さ
れたギヤと噛み合合わせ、他方のギヤはクラッチの出力
部材に形成したギヤと噛み合せたので、入力と出力間の
駆動経路を粘性流体層を介するものと、直結状態とに切
換える回転力切換え装置において、歯数の異なる両ギヤ
とクラッチの作用で、出力側に加わる抵抗によって機械
的に伝達できる回転力の大きさを切換えることができ
る。
As described above, according to the present invention, the first drive shaft connected to the input shaft and the torsional deformation connected to the output shaft can be formed.
A second drive shaft is connected via a viscous fluid layer, and a clutch is provided between the output shaft and the first drive shaft, the clutch being engaged and disengaged by an engagement element rotating around the output shaft. Connect the operating member of the splicer to the second drive shaft and connect it to the first drive shaft.
Two types of gears are provided, one of which is formed on the input shaft.
Gear is engaged with the other gear, and the other gear is the output of the clutch.
Since it meshed with the gear formed on the member,
Switch the drive path between the one via the viscous fluid layer and the directly connected state.
In the rotating torque switching device, the magnitude of the rotating force that can be mechanically transmitted by the resistance applied to the output side can be switched by the action of both gears and clutches having different numbers of teeth.

【0030】また、内蔵した第2駆動軸とクラッチの作
動により出力側の抵抗の変化を自動的に検出するので、
速度検出器や電子制御装置等用いずに、極めて簡単な構
造で回転力の切換えを行なうことができる。
Further, since the change in the resistance on the output side is automatically detected by the operation of the built-in second drive shaft and the clutch,
The rotation force can be switched with a very simple structure without using a speed detector, an electronic control device, or the like.

【0031】したがって、この発明を車両の駆動系に適
用すれば、摩擦抵抗の低い路面における発進を安定して
行なわせることができ、駆動系の構造の簡略化と低コス
ト化を実現できる効果がある。
Therefore, when the present invention is applied to a drive system of a vehicle, the vehicle can be stably started on a road surface with low frictional resistance, and the effect of simplifying the structure of the drive system and reducing the cost can be achieved. is there.

【図面の簡単な説明】[Brief description of the drawings]

【図1】実施例の縦断正面図FIG. 1 is a longitudinal sectional front view of an embodiment.

【図2】図1のII−II線に沿った断面図FIG. 2 is a sectional view taken along the line II-II in FIG.

【図3】図1のIII −III 線に沿った断面図FIG. 3 is a sectional view taken along the line III-III in FIG. 1;

【図4】図3の要部の拡大断面図FIG. 4 is an enlarged sectional view of a main part of FIG. 3;

【符号の説明】[Explanation of symbols]

2 入力軸 3 出力軸 4 第1駆動軸 5 第2駆動軸 9 粘性流体層 14 作動ピン 15 クラッチ 22 作動保持器 26 スプラグ 27 弾性部材 2 input shaft 3 output shaft 4 first drive shaft 5 second drive shaft 9 viscous fluid layer 14 operating pin 15 clutch 22 operation retainer 26 sprag 27 elastic member

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 入力軸に連結する第1駆動軸と、出力軸
に連結するねじり変形可能な第2駆動軸を粘性流体層を
介して連結し、出力軸と第1駆動軸の間に、出力軸の回
りを回動する係合子によって両者を係合離脱するクラッ
チを組み込むと共に、その係合子の作動部材を第2駆動
軸に連結し、前記第1駆動軸に2種類の歯数のギヤを設
け、一方のギヤは入力軸に形成されたギヤと噛み合い、
他方のギヤはクラッチの出力部材に形成されたギヤと噛
み合っていることを特徴とする回転力切換え装置。
1. A first drive shaft connected to an input shaft and a torsional deformable second drive shaft connected to an output shaft are connected via a viscous fluid layer, and between the output shaft and the first drive shaft. A clutch for disengaging and disengaging the two with an engaging element that rotates about an output shaft is incorporated, and an operating member of the engaging element is connected to a second drive shaft, and the first drive shaft has two types of gears. And one of the gears meshes with a gear formed on the input shaft,
The other gear meshes with a gear formed on the output member of the clutch.
Rotational force switching device characterized by being engaged .
JP3064793A 1991-03-28 1991-03-28 Rotational force switching device Expired - Fee Related JP2992109B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3064793A JP2992109B2 (en) 1991-03-28 1991-03-28 Rotational force switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3064793A JP2992109B2 (en) 1991-03-28 1991-03-28 Rotational force switching device

Publications (2)

Publication Number Publication Date
JPH04300429A JPH04300429A (en) 1992-10-23
JP2992109B2 true JP2992109B2 (en) 1999-12-20

Family

ID=13268472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3064793A Expired - Fee Related JP2992109B2 (en) 1991-03-28 1991-03-28 Rotational force switching device

Country Status (1)

Country Link
JP (1) JP2992109B2 (en)

Also Published As

Publication number Publication date
JPH04300429A (en) 1992-10-23

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