JPH064123Y2 - Gearbox speed change mechanism - Google Patents
Gearbox speed change mechanismInfo
- Publication number
- JPH064123Y2 JPH064123Y2 JP1989017736U JP1773689U JPH064123Y2 JP H064123 Y2 JPH064123 Y2 JP H064123Y2 JP 1989017736 U JP1989017736 U JP 1989017736U JP 1773689 U JP1773689 U JP 1773689U JP H064123 Y2 JPH064123 Y2 JP H064123Y2
- Authority
- JP
- Japan
- Prior art keywords
- solenoid
- speed
- switch
- contact
- relay
- 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
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- Control Of Transmission Device (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、建設車両の変速操作を容易にする変速機の
速度段切換機構に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a speed change mechanism of a transmission that facilitates gear shifting of a construction vehicle.
一般に、車輪式積込機械等の建設車両は、速度段を切換
えるための変速機が設けられており、この変速機は、第
２図に示すように、複数速度段の油圧クラッチ１，２，
３と電磁弁Ｖ１，Ｖ２とを備えている。電磁弁Ｖ１，Ｖ
２の切換操作は、第３図に示す変速操作手段４により行
われる。変速操作手段４は変速レバー又は変速用ロータ
リスイッチであって、第１電磁弁Ｖ１のソレノイドＳ１
に接続される第１接点Ｃ１と、第２電磁弁Ｖ２のソレノ
イドＳ２に接続される第２接点Ｃ２と、ソレノイドに接
続されない第３接点Ｃ３とを備えており、これらの接点
Ｃ１，Ｃ２，Ｃ３の何れかを選択する切換操作により電
磁弁Ｖ１，Ｖ２を切換えることができる。５はソレノイ
ドＳ１，Ｓ２用の電源、６はクラッチ１，２，３用の油
圧源である。Generally, a construction vehicle such as a wheel type loading machine is provided with a transmission for switching speed stages. As shown in FIG. 2, the transmission has hydraulic clutches 1, 2 ,.
3 and solenoid valves V 1 and V 2 . Solenoid valve V 1 , V
The switching operation of No. 2 is performed by the shift operation means 4 shown in FIG. Shift operation means 4 is a shift lever or shift rotary switch, the first solenoid S 1 of the solenoid valve V 1
A first contact point C 1 is connected to a second contact point C 2 connected to the solenoid S 2 of the second solenoid valve V 2, and a third contact C 3 that is not connected to the solenoid, the contacts The solenoid valves V 1 and V 2 can be switched by a switching operation that selects any one of C 1 , C 2 and C 3 . Reference numeral 5 is a power source for the solenoids S 1 and S 2 , and 6 is a hydraulic power source for the clutches 1, 2, and 3.
ここで、第１接点Ｃ１を選択すると、第１電磁弁Ｖ１の
ソレノイドＳ１がＯＮとなって一速油圧クラッチ１が係
合され、第２接点Ｃ２を選択すると第２電磁弁Ｖ２のソ
レノイドＳ２がＯＮとなって二速油圧クラッチ２が係合
され、第３接点Ｃ３を選択すると、第１，第２の電磁弁
Ｖ１，Ｖ２のソレノイドＳ１，Ｓ２が共にＯＦＦとなっ
て三速油圧クラッチ３が係合される。Here, when the first contact C 1 is selected, the solenoid S 1 of the first solenoid valve V 1 is turned on and the first speed hydraulic clutch 1 is engaged, and when the second contact C 2 is selected, the second solenoid valve V 1 is selected. second-speed hydraulic clutch 2 2 solenoid S 2 is turned ON is engaged, selecting the third contact C 3, first, second solenoid S 1, S 2 of the solenoid valve V 1, V 2 is Both are turned off and the third speed hydraulic clutch 3 is engaged.
車輪式積込機械等の建設車両は、作業時には車両の操
向，変速と同時に、バケット等の作業機の各操作を手動
で行うことが多く、従ってオペレータは、片手で作業機
を操作し、他の片手で操向と変速の二つの操作を行わね
ばならない。Construction vehicles such as wheeled loading machines often carry out each operation of a working machine such as a bucket manually at the same time as steering and gear shifting of the vehicle during work. Therefore, an operator operates the working machine with one hand, You must perform two operations, steering and shifting, with your other hand.
しかし、ステアリングホイールの回転，前後進の切換
え，変速段の切換えという多種類の異なる操作を片手で
連続して行うには熟練を要し、作業が長時間に亘る場
合、このような操作がオペレータの疲労の増大や誤操作
を招く原因となっている。However, it takes skill to continuously perform various kinds of different operations such as rotation of the steering wheel, switching between forward and backward movements, and switching between shift speeds with one hand, and when the work takes a long time, such an operation is performed by the operator. It is a cause of increased fatigue and erroneous operation.
この考案は、建設車両の変速操作に関する上記課題を解
決するものであって、熟練を要することなく変速操作を
容易に行うことができ、オペレータの疲労を低減し、誤
操作を防止することのできる変速機の速度段切換機構を
提供することを目的とする。This invention solves the above-mentioned problems relating to the shift operation of a construction vehicle, and can perform the shift operation easily without requiring skill, reduce operator fatigue, and prevent erroneous operations. An object is to provide a speed stage switching mechanism for a machine.
上記目的を達成するため、この考案では、３段の速度段
を有する油圧クラッチと、該油圧クラッチの速度段を切
換える第１及び第２の電磁弁と、該電磁弁の切換え操作
を行う第１ないし第３の接点を有する変速操作手段と、
任意の速度段を予め設定する予設定スイッチとを備えた
建設車両の変速機の速度段切換機構であって、前記予設
定スイッチで設定された速度段への変速を実行又は解除
する実行スイッチと、前記第１電磁弁のソレノイドと変
速操作手段の第１接点とを常閉接点を介して接続する二
速リレーと、前記第２電磁弁のソレノイドと変速操作手
段の第２接点とを常閉接点を介して接続する一速リレー
とを設け、前記予設定スイッチには選択した速度段に対
応して第１電磁弁のソレノイドと第２電磁弁のソレノイ
ドとを夫々一速リレーの常開接点と二速リレーの常開接
点とに切換接続するリレー用スイッチと、該リレー用ス
イッチと連動して第１電磁弁のソレノイドと第２電磁弁
のソレノイドとを夫々変速操作手段の第３接点に接続す
るソレノイド用スイッチとを設け、これらのリレー用ス
イッチとソレノイド用スイッチとを夫々前記実行スイッ
チとの間に介装された実行リレーの常開２接点に接続し
てある。In order to achieve the above object, in the present invention, a hydraulic clutch having three speed stages, first and second solenoid valves for switching the speed stages of the hydraulic clutch, and a first switching operation for the solenoid valves are provided. To a shift operation means having a third contact,
A speed stage switching mechanism for a transmission of a construction vehicle comprising a preset switch for presetting an arbitrary speed stage, and an execution switch for executing or canceling a shift to the speed stage set by the preset switch. , A second speed relay connecting the solenoid of the first solenoid valve and the first contact of the gear shift operating means via a normally closed contact, and the solenoid of the second solenoid valve and the second contact of the gear shift operating means are normally closed. A first-speed relay connected via a contact is provided, and the preset switch includes a solenoid of the first solenoid valve and a solenoid of the second solenoid valve corresponding to a selected speed stage, and normally-open contacts of the first-speed relay. And a normally open contact of a second speed relay, and a relay switch, and a solenoid of the first solenoid valve and a solenoid of the second solenoid valve, which are interlocked with the relay switch, are respectively used as the third contacts of the shift operating means. For solenoid to connect A pitch provided, is connected to the normally open two-contact run relay interposed between these switches and each said execution switch and a switch solenoid relay.
予設定スイッチで、任意の速度段を設定しておけば、実
行スイッチを操作するだけで、変速操作手段の操作を行
うことなく、予設定した速度段に変速される。If an arbitrary speed stage is set with the preset switch, the speed can be changed to the preset speed stage only by operating the execution switch without operating the shift operating means.
また、予設定スイッチで選択する速度段をこれと対応す
る変速操作手段の速度段と異なるように設定しておけ
ば、変速操作手段の切換え操作を行うことなく、実行ス
イッチのＯＮ−ＯＦＦ操作のみで任意の異なる２種類の
速度段を組み合わせた変速を行うことが可能となる。Further, if the speed stage selected by the preset switch is set to be different from the speed stage of the gear shift operating means corresponding thereto, only the ON-OFF operation of the execution switch can be carried out without performing the switching operation of the gear shift operating means. Thus, it is possible to perform a gear shift combining any two different speed stages.
したがって、所定の作業に対応する最適速度段を予め設
定することにより、当該作業を行うとき実行スイッチの
操作で容易に最適速度が得られる。Therefore, by presetting the optimum speed stage corresponding to a predetermined work, the optimum speed can be easily obtained by operating the execution switch when performing the work.
図面を参照し、この考案の実施例を説明する。第１図
は、この考案の一実施例である変速機の速度段切換機構
の構成を示す電気回路図である。An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an electric circuit diagram showing a configuration of a speed stage switching mechanism of a transmission according to an embodiment of the present invention.
この実施例の変速機の速度段切換機構の基本構成は、第
２図及び第３図に示される従来の速度段切換機構と同様
であり、一速，二速，三速の各油圧クラッチ１，２，
３、第１，第２の各電磁弁Ｖ１，Ｖ２とそのソレノイド
Ｓ１，Ｓ２、変速操作手段４とその第１，第２，第３の
接点Ｃ１，Ｃ２，Ｃ３及び電源５、油圧源６を備えてい
る。The basic structure of the speed change mechanism of the transmission of this embodiment is the same as that of the conventional speed change mechanism shown in FIGS. 2 and 3, and the first, second, and third speed hydraulic clutches 1 are used. , 2,
3, first and second solenoid valves V 1 and V 2 and their solenoids S 1 and S 2 , shift operating means 4 and their first, second and third contact points C 1 , C 2 and C 3 and A power source 5 and a hydraulic power source 6 are provided.
この基本構成に加えて、速度段を予め設定するための予
設定スイッチ７と、この予設定スイッチ７で設定した速
度段への変速を実行，解除するための実行スイッチ８と
が設けられている。この実施例で実行スイッチ８は手動
又はペダル操作スイッチであり、これに常開の二接点を
有する実行リレーＲ０が接続されている。予設定スイッ
チ７は、一速リレーＲ１側と二速リレーＲ２側とに切換
設定でき、実行リレーＲ０の動作で電源５と接続するリ
レー用スイッチＳＷ１と、このスイッチＳＷ１と連動
し、一速に設定したとき第１電磁弁Ｖ１のソレノイドＳ
１、二速に設定したとき第２電磁弁Ｖ２のソレノイドＳ
２を、実行リレーＲ０の動作で変速操作手段４の第３接
点Ｃ３に接続するソレノイド用スイッチＳＷ２とを含ん
でいる。In addition to this basic configuration, a preset switch 7 for presetting the speed stage and an execution switch 8 for executing and canceling the shift to the speed stage set by the preset switch 7 are provided. . In this embodiment, the execution switch 8 is a manual or pedal operation switch, to which the execution relay R 0 having two normally open contacts is connected. The preset switch 7 can be set to be switched between the first speed relay R 1 side and the second speed relay R 2 side, and the relay switch SW 1 connected to the power source 5 by the operation of the execution relay R 0 and the switch SW 1 Then, when the first speed is set, the solenoid S of the first solenoid valve V 1
Solenoid S of second solenoid valve V 2 when set to 1 , 2nd speed
2 includes a solenoid switch SW 2 which is connected to the third contact C 3 of the gear shift operating means 4 by the operation of the execution relay R 0 .
第１電磁弁Ｖ１のソレノイドＳ１は、常時は二速リレー
Ｒ２の常閉接点を介して変速操作手段４の第１接点Ｃ１
に接続され、また第２電磁弁Ｖ２のソレノイドＳ２は、
一速リレーＲ１の常閉接点を介して変速操作手段４の第
２接点Ｃ２に接続されている。The solenoid S 1 of the first solenoid valve V 1 is normally connected to the first contact C 1 of the speed change operation means 4 via the normally closed contact of the second speed relay R 2.
It is connected to, and the solenoid S 2 of the second solenoid valve V 2 is
It is connected to the second contact C 2 of the speed change operation means 4 via the normally closed contact of the first speed relay R 1 .
したがって、予設定スイッチ７がＯＦＦ、すなわち未設
定の場合や、予設定スイッチ７が設定されていても、実
行スイッチ８がＯＦＦであれば、第３図に示す従来の速
度段切換機構同様、変速操作手段４で第１接点Ｃ１を選
択すれば第１電磁弁Ｖ１のソレノイドＳ１がＯＮとなっ
て一速油圧クラッチ１が係合され、第２接点Ｃ２を選択
すれば第２電磁弁Ｖ２のソレノイドＳ２がＯＮとなって
二速油圧クラッチ２が係合され、第３接点Ｃ３を選択す
れば第１，第２の電磁弁Ｖ１，Ｖ２のソレノイドＳ１，
Ｓ２が共にＯＦＦとなって三速油圧クラッチ３が係合さ
れる。Accordingly, when the preset switch 7 is OFF, that is, when the preset switch 7 is not set, or when the preset switch 7 is set and the execution switch 8 is OFF, the gear shift is performed as in the conventional speed change mechanism shown in FIG. If the first contact C 1 is selected by the operating means 4, the solenoid S 1 of the first solenoid valve V 1 is turned on and the first speed hydraulic clutch 1 is engaged. If the second contact C 2 is selected, the second solenoid C 2 is selected. second-speed hydraulic clutch 2 solenoid S 2 of the valve V 2 is turned ON is engaged, first by selecting the third contact C 3, solenoid S 1 of the second solenoid valve V 1, V 2,
Both S 2 are turned off and the third speed hydraulic clutch 3 is engaged.
予設定スイッチ７を一速側に設定している場合に、実行
スイッチ８がＯＮになると実行リレーＲ０の接点が閉
じ、一速リレーＲ１が動作して、接点が切換えられる。
一速リレーＲ１の常開接点は第１電磁弁Ｖ１のソレノイ
ドＳ１と接続されているので、変速操作手段４で第２接
点Ｃ２を選択していてもソレノイドＳ１がＯＮとなり一
速油圧クラッチ１が係合される。また、第３接点Ｃ３を
選択してもソレノイド用スイッチＳＷ２を介して第３接
点３とソレノイドＳ１とが接続されているため、ソレノ
イドＳ１がＯＮとなり一速油圧クラッチ１が係合され
る。When the preset switch 7 is set to the first speed side, when the execution switch 8 is turned on, the contact of the execution relay R 0 is closed, the first speed relay R 1 is operated, and the contact is switched.
Since the normally open contact one speed relay R 1 is connected to the solenoid S 1 of the first solenoid valve V 1, the speed change operation unit 4 by the solenoid S 1 also selects the second contact C 2 is turned ON one The quick hydraulic clutch 1 is engaged. Further, even if the third contact C 3 is selected, the third contact 3 and the solenoid S 1 are connected via the solenoid switch SW 2 , so the solenoid S 1 is turned on and the first speed hydraulic clutch 1 is engaged. To be done.
予設定スイッチ７を二速側に設定している場合に、実行
スイッチ８がＯＮになると、実行リレーＲ０の接点が閉
じ、二速リレーＲ２が動作して接点が切換えられる。二
速リレーＲ２の常開接点は一速リレーＲ１の常閉接点を
介して第２電磁弁Ｖ２のソレノイドＳ２と接続されてい
るので、変速操作手段４で第１接点Ｃ１を選択してもソ
レノイドＳ２がＯＮとなり二速油圧クラッチ２が係合す
る。また第３接点Ｃ３を選択してもソレノイド用スイッ
チＳＷ２を介して第３接点Ｃ３がソレノイドＳ２と接続
されているためソレノイドＳ２がＯＮとなり二速油圧ク
ラッチ２が係合される。従って、変速操作手段４でどの
速度段を選択している場合にも、実行スイッチ８をＯＮ
−ＯＦＦすることにより予設定スイッチ７で設定してい
る速度段との間の速度段切換えが可能となる。When the preset switch 7 is set to the second speed side and the execution switch 8 is turned on, the contact of the execution relay R 0 is closed, and the second speed relay R 2 is operated to switch the contact. Since the normally open contact of the second speed relay R 2 is connected to the solenoid S 2 of the second electromagnetic valve V 2 via the normally closed contact of the first speed relay R 1 , the first contact C 1 is connected by the gear shift operation means 4. Even if selected, the solenoid S 2 is turned on and the second speed hydraulic clutch 2 is engaged. Third contact C 3 are engaged solenoid S 2 is is turned ON second-speed hydraulic clutch 2 because it is connected to the solenoid S 2 via the solenoid switch SW 2 also selects the third contact C 3 . Therefore, the execution switch 8 is turned on regardless of which speed stage is selected by the speed change operation means 4.
By turning the switch OFF, it becomes possible to switch the speed stage to the speed stage set by the preset switch 7.
予設定スイッチ７と変速操作手段４との双方の速度段の
切換えを併用することにより、実行スイッチ８をＯＮ−
ＯＦＦ操作するだけで、任意の異なる２種類の速度段を
組み合わせた変速を行うことができる。たとえば、予設
定スイッチ７で一速を設定した場合に変速操作手段４が
第２接点Ｃ２を選択してあれば、実行スイッチ８をＯＮ
に入れて一速で走行中に、実行スイッチ８をＯＦＦに戻
すと二速走行に切換えられ、変速操作手段４が第３接点
Ｃ３を選択してあれば、実行スイッチ８をＯＮに入れて
一速で走行中に、実行スイッチ８をＯＦＦに戻すと三速
走行に切換えられる。予設定スイッチを７で二速を設定
した場合においても同様に、変速操作手段４の第１接点
Ｃ１を選択すると、実行スイッチ８のＯＮ−ＯＦＦ操作
により二速と一速との相互間切換が可能であり、変速操
作手段４の第３接点Ｃ３を選択すると、実行スイッチ８
のＯＮ−ＯＦＦ操作により二速と三速との相互間切換が
可能となる。したがって、車両の変速と同時に操向、作
業機の操作等多種の操作を行う必要がある建設車両にお
いては、たとえば三速走行と一速作業とを交互に繰り返
すような場合でも変速操作手段４の切換え操作をする手
間が省けることになる。The execution switch 8 is turned ON by using both the preset switch 7 and the speed change operation means 4 for switching the speed stages.
By simply performing the OFF operation, it is possible to perform a gear shift combining any two different speed stages. For example, if the speed change operation means 4 selects the second contact C 2 when the first speed is set by the preset switch 7, the execution switch 8 is turned on.
If the execution switch 8 is returned to OFF while the vehicle is traveling at the first speed, the mode is switched to the second speed traveling. If the speed change operation means 4 selects the third contact C 3 , the execution switch 8 is turned on. If the execution switch 8 is returned to OFF while traveling at the first speed, the traveling mode is switched to the third speed. Also in case of setting the second-speed to preset switch 7 and selects the first contact point C 1 of the shift operation means 4, and chopped mutual a two-speed and one speed by ON-OFF operation of the execution switch 8 conversion Is possible, and when the third contact C 3 of the gear shift operating means 4 is selected, the execution switch 8
It is possible to switch between the second speed and the third speed by the ON-OFF operation of. Therefore, in a construction vehicle in which it is necessary to perform various operations such as steering and operation of a working machine at the same time as shifting the vehicle, even if the third speed traveling and the first speed operation are alternately repeated, This saves the trouble of switching operation.
実行スイッチ８は、作業機レバーの握りの近傍や足もと
のペダル近傍に配置すれば、ステアリングホイールの操
作と変速操作とを片手で同時に行う必要もなくなる。If the execution switch 8 is arranged near the grip of the work implement lever or near the pedal at the foot, it is not necessary to simultaneously perform the steering wheel operation and the gear shifting operation with one hand.
この考案によれば、各種の作業内容に合わせて任意の速
度段設定を行うことができるため、最適な組合わせの速
度段を選択することが可能となり、オペレータは熟練を
要せず、作業時の変速操作が容易で疲労が低減され、誤
動作が防止されるという効果がある。According to this invention, since it is possible to set an arbitrary speed stage according to various work contents, it is possible to select an optimal combination of speed stages, and the operator does not need to be skilled, The gear shift operation is easy, fatigue is reduced, and malfunctions are prevented.
第１図は、この考案の一実施例の構成を示す電気回路
図、第２図，第３図は従来の速度段切換機構の構成を示
す、油圧回路及び電気回路の説明図である。 図中、１，２，３は一速，二速，三速の油圧クラッチ、
４は変速操作手段、Ｃ１，Ｃ２，Ｃ３は第１，第２，第
３の接点、７は予設定スイッチ、８は実行スイッチ、Ｖ
１，Ｖ２は第１，第２電磁弁、Ｓ１，Ｓ２はそのソレノ
イド、Ｒ０，Ｒ１，Ｒ２は実行，一速，二速リレー、Ｓ
Ｗ１はリレー用スイッチ、ＳＷ２はソレノイド用スイッ
チである。FIG. 1 is an electric circuit diagram showing the constitution of an embodiment of the present invention, and FIGS. 2 and 3 are explanatory diagrams of a hydraulic circuit and an electric circuit showing the constitution of a conventional speed stage switching mechanism. In the figure, 1, 2 and 3 are hydraulic clutches for 1st speed, 2nd speed and 3rd speed,
Reference numeral 4 is a shift operating means, C 1 , C 2 , C 3 are first, second and third contacts, 7 is a preset switch, 8 is an execution switch, V
1 , V 2 are first and second solenoid valves, S 1 and S 2 are solenoids thereof, R 0 , R 1 and R 2 are execution, first speed and second speed relays, S
W 1 is a relay switch, and SW 2 is a solenoid switch.
Claims (1)
油圧クラッチの速度段を切換える第１及び第２の電磁弁
と、該電磁弁の切換え操作を行う第１ないし第３の接点
を有する変速操作手段と、任意の速度段を予め設定する
予設定スイッチとを備えた建設車両の変速機の速度段切
換機構であって、前記予設定スイッチで設定された速度
段への変速を実行又は解除する実行スイッチと、前記第
１電磁弁のソレノイドと変速操作手段の第１接点とを常
閉接点を介して接続する二速リレーと、前記第２電磁弁
のソレノイドと変速操作手段の第２接点とを常閉接点を
介して接続する一速リレーとを設け、前記予設定スイッ
チには選択した速度段に対応して第１電磁弁のソレノイ
ドと第２電磁弁のソレノイドとを夫々一速リレーの常開
接点と二速リレーの常開接点とに切換接続するリレー用
スイッチと、該リレー用スイッチと連動して第１電磁弁
のソレノイドと第２電磁弁のソレノイドとを夫々変速操
作手段の第３接点に接続するソレノイド用スイッチとを
設け、これらのリレー用スイッチとソレノイド用スイッ
チとを夫々前記実行スイッチとの間に介装された実行リ
レーの常開２接点に接続したことを特徴とする変速機の
速度段切換機構。1. A hydraulic clutch having three speed stages, first and second solenoid valves for switching the speed stage of the hydraulic clutch, and first to third contacts for switching the solenoid valves. A speed gear change mechanism for a transmission of a construction vehicle, which comprises a gear shift operation means and a preset switch for presetting an arbitrary gear, and executes gear shift to the gear set by the preset switch. Or a release switch, a second speed relay that connects the solenoid of the first solenoid valve and the first contact of the gear shift operation means via a normally closed contact, the solenoid of the second solenoid valve, and the first of the gear shift operation means. A first speed relay for connecting two contacts via a normally closed contact is provided, and the preset switch has one solenoid for the first solenoid valve and one solenoid for the second solenoid valve corresponding to the selected speed stage. Normally open contact and second speed relay A relay switch for switching and connecting to the normally open contact, and a solenoid switch for connecting the solenoid of the first solenoid valve and the solenoid of the second solenoid valve to the third contact of the gear shifting operation means in conjunction with the relay switch. And a relay switch and a solenoid switch are connected to two normally open contacts of an execution relay interposed between the execution switch and the execution switch, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989017736U JPH064123Y2 (en) | 1989-02-17 | 1989-02-17 | Gearbox speed change mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989017736U JPH064123Y2 (en) | 1989-02-17 | 1989-02-17 | Gearbox speed change mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0351267U JPH0351267U (en) | 1991-05-17 |
| JPH064123Y2 true JPH064123Y2 (en) | 1994-02-02 |
Family
ID=31520917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989017736U Expired - Lifetime JPH064123Y2 (en) | 1989-02-17 | 1989-02-17 | Gearbox speed change mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH064123Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6121457A (en) * | 1984-07-06 | 1986-01-30 | Fujitsu Ten Ltd | Automatic shift controller |
| JPS6323638U (en) * | 1986-07-30 | 1988-02-16 |
-
1989
- 1989-02-17 JP JP1989017736U patent/JPH064123Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0351267U (en) | 1991-05-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |