JPH0318067B2 - - Google Patents
Info
- Publication number
- JPH0318067B2 JPH0318067B2 JP60139942A JP13994285A JPH0318067B2 JP H0318067 B2 JPH0318067 B2 JP H0318067B2 JP 60139942 A JP60139942 A JP 60139942A JP 13994285 A JP13994285 A JP 13994285A JP H0318067 B2 JPH0318067 B2 JP H0318067B2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- shaft
- input shaft
- transmission
- output 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 - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims description 36
- 238000010168 coupling process Methods 0.000 claims description 30
- 238000005859 coupling reaction Methods 0.000 claims description 30
- 230000008878 coupling Effects 0.000 claims description 25
- 238000007796 conventional method Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/021—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings toothed gearing combined with continuous variable friction gearing
Landscapes
- Transmission Devices (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は変速機、特にＶベルト式無段変速装置
と直結歯車装置とを並列に設け、各軸が車幅方向
に配設された横置き型の変速機に関するものであ
る。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a transmission, particularly a horizontal type transmission in which a V-belt continuously variable transmission and a direct gearing are arranged in parallel, and each shaft is arranged in the vehicle width direction. This relates to a transmission.
従来技術とその問題点
従来、駆動側プーリと従動側プーリとのプーリ
径を変化させることにより、変速比を無段階に変
化させることができるＶベルト式無段変速装置を
備えた変速機が知られている。ところが、ベルト
駆動の動力伝達効率は歯車駆動に比べて劣るとい
う問題があるため、従来例えば特開昭58−28046
号公報に記載のように、人力軸と出力軸との間に
Ｖベルト式無段変速装置と歯車装置とを並列に設
け、低回転域ではＶベルト式無段変速装置を介し
て動力伝達し、高回転域では歯車装置を介して動
力伝達し、走行時間の大部分を占める高回転域の
動力伝達効率を向上させ、ベルト寿命の向上を図
つたものが提案されている。Conventional technology and its problems Conventionally, a transmission equipped with a V-belt type continuously variable transmission device that can change the gear ratio steplessly by changing the pulley diameters of the driving pulley and the driven pulley has been known. It is being However, there is a problem that the power transmission efficiency of belt drive is inferior to that of gear drive.
As described in the publication, a V-belt type continuously variable transmission and a gear device are installed in parallel between the human power shaft and the output shaft, and power is transmitted via the V-belt type continuously variable transmission in the low rotation range. A system has been proposed in which power is transmitted through a gear device in the high rotation range to improve the power transmission efficiency in the high rotation range, which accounts for most of the running time, and to extend the life of the belt.
ところが、上記構造の場合には、歯車装置によ
つて駆動させる時（以下、直結時という）、入力
軸の駆動力は、入力軸の駆動ギヤからアイドルギ
ヤ、被動ギヤ、メインドライブギヤ、カウンタド
ライブギヤを介してデイフアレンシヤル装置に伝
達されるため、直結時のギヤのかみ合い段数が４
段となり、動力が入力軸からデイフアレンシヤル
装置まで伝達される間の動力損失が無視できず、
しかも軸数およびギヤ数が多くなつて構造が複雑
かつ大型化するという問題があつた。 However, in the case of the above structure, when driven by a gear device (hereinafter referred to as direct connection), the driving force of the input shaft is transmitted from the drive gear of the input shaft to the idle gear, driven gear, main drive gear, and counter drive. Since the transmission is transmitted to the differential device via gears, the number of meshing stages of gears when directly connected is 4.
The power loss during the transmission of power from the input shaft to the differential device cannot be ignored.
Moreover, the number of shafts and gears increases, resulting in a complicated and large-sized structure.
発明の目的
本発明はかかる従来の問題点に鑑みてなされた
もので、その目的は、直結時におけるギヤのかみ
合い段数を少なくして動力損失を低減し、かつ軸
数およびギヤ数を少なくして構造の簡素化および
小型化を実現できる変速機を提供することにあ
る。Purpose of the Invention The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to reduce power loss by reducing the number of meshing stages of gears in direct connection, and to reduce the number of shafts and gears. The object of the present invention is to provide a transmission whose structure can be simplified and downsized.
発明の構成
上記目的を達成するために、本発明は、互いに
平行でかつ非同軸上に配置された入力軸および出
力軸と、駆動側プーリが入力軸と接続され、従動
側プーリが出力軸と接続されたＶベルト式無段変
速装置と、出力軸に対して平行でかつ非同軸上に
配置され、該出力軸とデイフアレンシヤル装置と
をギヤを介して接続するカウンタ軸とを備え、上
記各軸が車幅方向に配設された横置き型変速機に
おいて、上記入力軸上に直結用駆動ギヤを回転自
在に設け、該直結用駆動ギヤと入力軸とを断接切
換する切換装置を設け、Ｖベルト式無段変速装置
の従動側プーリと上記出力軸との間に摩擦係合装
置を設けるとともに、上記カウンタ軸に上記直結
用駆動ギヤのみに噛み合う直結用従動ギヤを設
け、上記切換装置と摩擦係合装置とを交互に断接
することにより上記Ｖベルト式無段変速装置と直
結用ギヤとのいずれかを選択的に駆動させるもの
である。Structure of the Invention In order to achieve the above object, the present invention includes an input shaft and an output shaft arranged parallel to each other and non-coaxially, a driving pulley connected to the input shaft, and a driven pulley connected to the output shaft. A V-belt type continuously variable transmission device connected to the V-belt type continuously variable transmission device, and a counter shaft arranged parallel to and non-coaxially with the output shaft and connecting the output shaft and the differential device via a gear, In the horizontally mounted transmission in which each of the shafts is arranged in the vehicle width direction, a direct coupling drive gear is rotatably provided on the input shaft, and a switching device that switches the direct coupling drive gear and the input shaft on and off. A friction engagement device is provided between the driven pulley of the V-belt type continuously variable transmission and the output shaft, and a direct coupling driven gear that meshes only with the direct coupling drive gear is provided on the counter shaft, By alternately connecting and disconnecting the switching device and the frictional engagement device, either the V-belt type continuously variable transmission device or the direct coupling gear is selectively driven.
すなわち、直結時には入力軸の駆動力を、入力
軸の直結用駆動ギヤ、カウンタ軸の直結用従動ギ
ヤを介してデイフアレンシヤル装置に伝達するよ
うにしたので、ギヤのかみ合い段数が２段とな
り、しかも軸数およびギヤ数を従来に比べて大幅
に削減できる。 In other words, in the case of direct connection, the driving force of the input shaft is transmitted to the differential device via the direct connection drive gear of the input shaft and the direct connection driven gear of the counter shaft, so the number of meshing stages of the gears is two. Moreover, the number of shafts and gears can be significantly reduced compared to the conventional method.
実施例の説明
第１図、第２図は本発明にかかる変速機の第１
例を示し、エンジンのクランク軸１の端部には流
体継手カバー２が結合され、この流体継手カバー
２の内部には流体継手を構成するポンプ３および
タービン４と遠心式ロツクアツプクラツチ５とが
回動自在に収容されている。DESCRIPTION OF EMBODIMENTS FIGS. 1 and 2 show a first embodiment of a transmission according to the present invention.
As an example, a fluid coupling cover 2 is coupled to the end of a crankshaft 1 of an engine, and inside this fluid coupling cover 2, a pump 3, a turbine 4, and a centrifugal lock-up clutch 5, which constitute the fluid coupling, are connected. It is rotatably housed.
入力軸６は上記タービン４およびロツクアツプ
クラツチ５と結合されており、この入力軸６には
直結用駆動ギヤ７が回動自在に外挿され、この直
結用ギヤ７と入力軸６とはドツグクラツチなどの
直結用切換装置８により選択的に結合されるよう
になつている。 The input shaft 6 is connected to the turbine 4 and the lock-up clutch 5. A direct-coupling drive gear 7 is rotatably inserted into the input shaft 6, and the direct-coupling gear 7 and the input shaft 6 are connected to a dog clutch. The connection is selectively made by a direct connection switching device 8 such as the following.
入力軸６の端部には入力ギヤ９が固定されてお
り、この入力ギヤ９はＶベルト式無段変速装置１
０の一次軸１１に固定された内歯ギヤ１２と噛み
合い、入力軸６の駆動力を減速して一次軸１１に
伝達している。Ｖベルト式無段変速装置１０は、
一次軸１１に設けた駆動側プーリ１３と、二次軸
１４に設けた従動側プーリ１５と、両プーリ１
３，１５間に巻き掛けたＶベルト１６とを有して
いる。駆動側プーリ１３は一次軸１１に固定され
た固定シーブ１３ａと一次軸１１に対し軸方向に
移動自在な可動シーブ１３ｂとを有し、可動シー
ブ１３ｂの背後に設けた推力発生装置１７により
可動シーブ１３ｂを軸方向に作動させることがで
きる。一方、従動側プーリ１５も駆動側プーリ１
３と同様に、二次軸１４に固定された固定シーブ
１５ａと二次軸１４に対し軸方向に移動自在な可
動シーブ１５ｂとを有し、可動シーブ１５ｂの背
後に設けた推力発生装置１８により可動シーブ１
５ｂを軸方向に作動させることができる。したが
つて、上記推力発生装置１７，１８を相互に作動
させることによつて、駆動側プーリ１３と従動側
プーリ１５のプーリ径を相互に変化させ、無段変
速を行うことができる。 An input gear 9 is fixed to the end of the input shaft 6, and this input gear 9 is connected to the V-belt continuously variable transmission 1.
The input shaft 1 engages with an internal gear 12 fixed to the primary shaft 11 of the input shaft 6, and transmits the driving force of the input shaft 6 to the primary shaft 11 at reduced speed. The V-belt continuously variable transmission 10 is
A driving pulley 13 provided on the primary shaft 11, a driven pulley 15 provided on the secondary shaft 14, and both pulleys 1
It has a V-belt 16 wound around between 3 and 15. The drive pulley 13 has a fixed sheave 13a fixed to the primary shaft 11 and a movable sheave 13b that is movable in the axial direction with respect to the primary shaft 11. 13b can be actuated in the axial direction. On the other hand, the driven pulley 15 is also connected to the driving pulley 1.
3, it has a fixed sheave 15a fixed to the secondary shaft 14 and a movable sheave 15b that is movable in the axial direction with respect to the secondary shaft 14, and the thrust generator 18 provided behind the movable sheave 15b Movable sheave 1
5b can be actuated axially. Therefore, by mutually operating the thrust generating devices 17 and 18, the pulley diameters of the driving pulley 13 and the driven pulley 15 can be mutually changed, thereby achieving continuously variable speed.
なお、上記推力発生装置１７，１８としては、
油圧によつて可動シーブを作動させる油圧サーボ
装置や、遠心力により可動シーブを作動させる遠
心作動装置や、入力トルクに見合つた推力を発生
させるトルクカムなどがある。 Note that the thrust generators 17 and 18 are as follows:
There are hydraulic servo devices that operate movable sheaves using hydraulic pressure, centrifugal actuators that operate movable sheaves using centrifugal force, and torque cams that generate thrust commensurate with input torque.
二次軸１４の外周には出力軸１９が回転自在に
外挿されており、二次軸１４と出力軸１９とは摩
擦係合装置であるリヤクラツチ２０によつて断続
される。リヤクラツチ２０は、Ｖベルト式無段変
速装置１０を介して動力伝達されるときに二次軸
１４と出力軸１９とを結合し、直結時には切れる
ものである。出力軸１９には前進用ギヤ２１と後
進用ギヤ２２とが回転自在に外挿され、前後進切
換装置２３によつて前進用ギヤ２１あるいは後進
用ギヤ２２のいずれか一方を出力軸１９と連結す
るようになつている。 An output shaft 19 is rotatably inserted around the outer periphery of the secondary shaft 14, and the secondary shaft 14 and the output shaft 19 are connected and connected by a rear clutch 20, which is a frictional engagement device. The rear clutch 20 connects the secondary shaft 14 and the output shaft 19 when power is transmitted through the V-belt type continuously variable transmission 10, and disengages when directly connected. A forward gear 21 and a reverse gear 22 are rotatably attached to the output shaft 19, and either the forward gear 21 or the reverse gear 22 is connected to the output shaft 19 by a forward/reverse switching device 23. I'm starting to do that.
後進用アイドル軸２４は出力軸１９と平行に配
置されており、この軸２４には後進用ギヤ２２に
噛み合う後進用アイドルギヤ２５と、後進用アイ
ドルギヤ２６とが固定されている。 The reverse idle shaft 24 is arranged parallel to the output shaft 19, and a reverse idle gear 25 that meshes with the reverse gear 22 and a reverse idle gear 26 are fixed to this shaft 24.
カウンタ軸２７も出力軸１９と平行に配置され
ており、このカウンタ軸２７には上記前進用ギヤ
２１と後進用アイドルギヤ２６とに噛み合うカウ
ンタギヤ２８と、上記直結用駆動ギヤ７に噛み合
う直結用従動ギヤ２９と、終減速ギヤ３０とが固
定されており、終減速ギヤ３０はデイフアレンシ
ヤル装置３１に噛み合つている。 A counter shaft 27 is also arranged parallel to the output shaft 19, and the counter shaft 27 has a counter gear 28 that meshes with the forward gear 21 and the reverse idle gear 26, and a direct-coupling gear 28 that meshes with the direct-coupling drive gear 7. A driven gear 29 and a final reduction gear 30 are fixed, and the final reduction gear 30 meshes with a differential device 31.
上記構成の変速機において、前進駆動の低回転
域においては、直結用切換装置８が入力軸６と直
結用駆動ギヤ７とを分離しており、リヤクラツチ
２０が接続されている。したがつて、入力軸６の
駆動力は、Ｖベルト式無段変速装置１０、出力軸
１９、前進用ギヤ２１、カウンタギヤ２８、終減
速ギヤ３０を介してデイフアレンシヤル装置３１
に伝達され、入力軸６とデイフアレンシヤル装置
３１との回転方向が同一であるので、車両を無段
変速しつつ前進させることができる。 In the transmission configured as described above, in the low rotation range of forward drive, the direct coupling switching device 8 separates the input shaft 6 and the direct coupling drive gear 7, and the rear clutch 20 is connected. Therefore, the driving force of the input shaft 6 is transmitted to the differential device 31 via the V-belt type continuously variable transmission 10, the output shaft 19, the forward gear 21, the counter gear 28, and the final reduction gear 30.
Since the input shaft 6 and the differential device 31 rotate in the same direction, the vehicle can be moved forward while being continuously variable.
また、後進駆動時には、直結用切換装置８が入
力軸６と直結用駆動ギヤ７とを分離し、リヤクラ
ツチ２０を接続するとともに、前後進切換装置２
３が出力軸１９と後進用ギヤ２２とを結合する。
これにより、入力軸６の駆動力は、Ｖベルト式無
段変速装置１０、出力軸１９、後進用ギヤ２２、
後進用アイドルギヤ２５，２６、カウンタギヤ２
８、終減速ギヤ３０を介してデイフアレンシヤル
装置３１に伝達され、入力軸６とデイフアレンシ
ヤル装置３１との回転方向が逆であるので、車両
を後退させることができる。 In addition, during reverse drive, the direct coupling switching device 8 separates the input shaft 6 and the direct coupling drive gear 7, connects the rear clutch 20, and at the same time connects the rear clutch 20.
3 connects the output shaft 19 and the reverse gear 22.
As a result, the driving force of the input shaft 6 is transmitted to the V-belt continuously variable transmission 10, the output shaft 19, the reverse gear 22,
Reverse idle gears 25, 26, counter gear 2
8. The signal is transmitted to the differential device 31 via the final reduction gear 30, and since the input shaft 6 and the differential device 31 rotate in opposite directions, the vehicle can be moved backward.
一方、前進駆動の高回転域においては、直結用
切換装置８で入力軸６と直結用駆動ギヤ７とを結
合するとともに、リヤクラツチ２０を切り、入力
軸６の動力を、直結用駆動ギヤ７、カウンタ軸２
７の直結用従動ギヤ２９および終減速ギヤ３０を
介してデイフアレンシヤル装置３１に伝達する。
これにより、入力軸６とデイフアレンシヤル装置
３１の回転方向が同一となり、かつＶベルト式無
段変速装置１０を経由せずにギヤのみによつて直
結駆動されるので、伝達効率を大幅に向上させる
ことができる。しかも、入力軸６とデイフアレン
シヤル装置３１との間には、直結用駆動ギヤ７、
直結用従動ギヤ２９、終減速ギヤ３０およびデイ
フアレンシヤル装置３１が存在するにすぎないの
で、ギヤのかみ合い段数が２段となり、動力損失
を最小限度まで低減できるとともに、軸数および
ギヤ数を従来に比べて大幅に削減でき、構造の簡
素化および小型化を実現できる。 On the other hand, in the high rotation range of forward drive, the direct coupling switching device 8 connects the input shaft 6 and the direct coupling drive gear 7, and the rear clutch 20 is disengaged to transfer the power of the input shaft 6 to the direct coupling drive gear 7, Counter axis 2
The signal is transmitted to the differential device 31 via the direct-coupling driven gear 29 and the final reduction gear 30 of No. 7.
As a result, the input shaft 6 and the differential device 31 rotate in the same direction, and are directly coupled and driven only by gears without going through the V-belt continuously variable transmission 10, so transmission efficiency can be greatly improved. can be improved. Moreover, between the input shaft 6 and the differential device 31, a direct drive gear 7,
Since there are only the direct coupling driven gear 29, the final reduction gear 30, and the differential device 31, the number of meshing stages of the gears is two, reducing power loss to the minimum, and reducing the number of shafts and gears. This can be significantly reduced compared to the conventional method, and the structure can be simplified and downsized.
発明の効果
以上の説明で明らかなように、本発明によれば
入力軸とカウンタ軸とに互いに噛み合う直結用ギ
ヤを設け、直結時に入力軸の駆動力を、入力軸の
直結用ギヤ、カウンタ軸の直結用ギヤを介してデ
イフアレンシヤル装置に伝達するようにしたの
で、ギヤのかみ合い段数が２段となり、動力損失
を低減できるとともに、軸数およびギヤ数を従来
に比べて大幅に削減でき、構造の簡素化および小
型化を実現できる。Effects of the Invention As is clear from the above description, according to the present invention, the input shaft and the counter shaft are provided with direct coupling gears that mesh with each other, and when the input shaft is directly coupled, the driving force of the input shaft is transferred between the input shaft direct coupling gear, the counter shaft, and the counter shaft. Since the power is transmitted to the differential gear through a direct connection gear, the number of meshing stages of the gears is two, reducing power loss and significantly reducing the number of shafts and gears compared to conventional methods. , the structure can be simplified and miniaturized.
また、直結用駆動ギヤと直結用従動ギヤはベル
ト駆動時には動力伝達に寄与しないので、直結時
のギヤ比をベルト駆動時のギヤ比に影響されずに
任意に設定できる。 Furthermore, since the direct coupling drive gear and the direct coupling driven gear do not contribute to power transmission when the belt is driven, the gear ratio when the direct coupling is driven can be arbitrarily set without being affected by the gear ratio when the belt is driven.
第１図は本発明の１例のスケルトン図、第２図
は第１図におけるギヤ配置を示す側面図である。
６……入力軸、７……直結用駆動ギヤ、８……
直結用切換装置、１０……Ｖベルト式無段変速装
置、１９……出力軸、２０……リヤクラツチ（摩
擦係合装置）、２３……前後進切換装置、２７…
…カウンタ軸、２９……直結用従動ギヤ、３０…
…終減速ギヤ、３１……デイフアレンシヤル装
置。
FIG. 1 is a skeleton diagram of one example of the present invention, and FIG. 2 is a side view showing the gear arrangement in FIG. 1. 6... Input shaft, 7... Direct connection drive gear, 8...
Direct coupling switching device, 10... V-belt type continuously variable transmission, 19... Output shaft, 20... Rear clutch (frictional engagement device), 23... Forward/forward switching device, 27...
... Counter shaft, 29 ... Direct connection driven gear, 30 ...
...Final reduction gear, 31...Differential device.
Claims (1)
軸および出力軸と、駆動側プーリが入力軸と接続
され、従動側プーリが出力軸と接続されたＶベル
ト式無段変速装置と、出力軸に対して平行でかつ
非同軸上に配置され、該出力軸とデイフアレンシ
ヤル装置とをギヤを介して接続するカウンタ軸と
を備え、上記各軸が車幅方向に配設された横置き
型変速機において、 上記入力軸上に直結用駆動ギヤを回転自在に設
け、該直結用駆動ギヤと入力軸とを断接切換する
切換装置を設け、Ｖベルト式無段変速装置の従動
側プーリと上記出力軸との間に摩擦係合装置を設
けるとともに、上記カウンタ軸に上記直結用駆動
ギヤのみに噛み合う直結用従動ギヤを設け、上記
切換装置と摩擦係合装置とを交互に断接すること
により上記Ｖベルト式無段変速装置と直結用ギヤ
とのいずれかを選択的に駆動させるようにしたこ
とを特徴とする変速機。[Scope of Claims] 1. A V-belt type stepless device in which an input shaft and an output shaft are arranged parallel to each other and non-coaxially, a driving pulley is connected to the input shaft, and a driven pulley is connected to the output shaft. a transmission device, and a counter shaft disposed parallel to and non-coaxially with an output shaft and connecting the output shaft and a differential device via gears, each of the axes being arranged in the vehicle width direction. In the horizontally mounted transmission, a direct coupling drive gear is rotatably provided on the input shaft, a switching device is provided to connect and disconnect the direct coupling drive gear and the input shaft, and a V-belt type continuously variable transmission is provided. A friction engagement device is provided between the driven pulley of the transmission and the output shaft, and a direct connection driven gear that meshes only with the direct connection drive gear is provided on the counter shaft, and the switching device and the friction engagement device are connected to each other. A transmission characterized in that either the V-belt type continuously variable transmission or the direct coupling gear is selectively driven by alternately connecting and disconnecting the V-belt type continuously variable transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13994285A JPS622067A (en) | 1985-06-26 | 1985-06-26 | Speed change gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13994285A JPS622067A (en) | 1985-06-26 | 1985-06-26 | Speed change gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS622067A JPS622067A (en) | 1987-01-08 |
| JPH0318067B2 true JPH0318067B2 (en) | 1991-03-11 |
Family
ID=15257263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13994285A Granted JPS622067A (en) | 1985-06-26 | 1985-06-26 | Speed change gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS622067A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5496654A (en) * | 1977-12-30 | 1979-07-31 | Bosch Gmbh Robert | Transmission gear |
-
1985
- 1985-06-26 JP JP13994285A patent/JPS622067A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5496654A (en) * | 1977-12-30 | 1979-07-31 | Bosch Gmbh Robert | Transmission gear |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS622067A (en) | 1987-01-08 |
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