JPS6232899Y2 - - Google Patents
Info
- Publication number
- JPS6232899Y2 JPS6232899Y2 JP1980146231U JP14623180U JPS6232899Y2 JP S6232899 Y2 JPS6232899 Y2 JP S6232899Y2 JP 1980146231 U JP1980146231 U JP 1980146231U JP 14623180 U JP14623180 U JP 14623180U JP S6232899 Y2 JPS6232899 Y2 JP S6232899Y2
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- reverse
- check
- lever
- speed change
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 40
- 230000033001 locomotion Effects 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Description
【考案の詳細な説明】
本考案は、一定方向回転伝動系での無段変速を
行う主変速機構と、前記主変速機構を操作するた
めの駆動機構と、前記主変速機構の伝動下手側に
配備されるギヤシフト式の前後進切換え機構と、
前進変速操作域と後進変速操作域と前後進切換操
作域とを備えた操作レバーと、前記前後進変速操
作域での操作レバーの操作量を検出して、その操
作量に見合う量だけ前記駆動機構を自動作動させ
る変速操作機構と、前記前後進切換操作域での操
作レバーの操作に連係して前記前後進切換え機構
を操作する連係機構とを備えた作業車の変速装置
に関するものである。[Detailed description of the invention] The present invention includes a main transmission mechanism that performs continuously variable transmission in a constant direction rotation transmission system, a drive mechanism for operating the main transmission mechanism, and a drive mechanism on the downstream side of the transmission of the main transmission mechanism. A gear shift type forward/backward switching mechanism is provided,
An operating lever is provided with a forward gear shifting operating range, a reverse shifting operating range, and a forward/reverse switching operating range, and the operating amount of the operating lever in the forward/reverse shifting operating range is detected, and the drive is adjusted by an amount corresponding to the operating amount. The present invention relates to a transmission device for a working vehicle, which includes a speed change operation mechanism that automatically operates the mechanism, and a linkage mechanism that operates the forward/reverse switching mechanism in conjunction with the operation of a control lever in the forward/reverse switching operation range.
上記構成の変速装置は主変速機構を駆動機構で
操作するので、前進又は後進での無段変速操作を
極めて軽快に行うことができる特徴を有している
のであるが、その反面、操作レバーを前記駆動機
構の作動速度よりも速く操作し得るために、次の
ような問題が生じていた。 Since the transmission device with the above configuration operates the main transmission mechanism with a drive mechanism, it has the characteristic of being able to perform continuously variable speed operations in forward or reverse motion extremely easily. Since the drive mechanism can be operated faster than the operating speed, the following problems have arisen.
例えば、ある前進変速状態から後進に切換える
必要が生じると、先ず操作レバーを前進変速操作
域において前進停止位置まで移行したのち前後進
変速機構を前進から後進に切換え、次に後進変速
域において所望の後進速度を選択するのである
が、前述のようにこの構成では操作レバーを変速
用駆動機構より大きく先行して操作できるため
に、操作レバーを急速に前進停止位置まで戻すと
実際の速度は未だ相当高速にあり、ここで直ちに
前後進切換えのギヤシフトを行うと適切にギヤ咬
合が行われず、異音（ギヤ鳴り）を発生したり、
ギヤ破損をもたらすものであつた。 For example, when it is necessary to switch from a certain forward gear shift state to reverse, first move the control lever to the forward stop position in the forward shift operation range, then switch the forward/reverse gear change mechanism from forward to reverse, and then shift to the desired position in the reverse shift range. The reverse speed is selected, but as mentioned above, with this configuration, the control lever can be operated far ahead of the gear shift drive mechanism, so if the control lever is quickly returned to the forward stop position, the actual speed will still be quite high. If the vehicle is running at high speed and the gears are immediately shifted forward or forward, the gears will not engage properly and may generate abnormal noises (gear noises).
This caused gear damage.
又、このような問題の解決する手段として、例
えば操作レバーが変速用駆動機構の作動に先行し
ないように、操作レバーの移動低抗を与えたり、
操作レバー先行量を常に小さくするように駆動機
構と操作レバーの相対関係の変化を規制すること
も考えられるのであるが、このようにすると変速
操作が重くなつたり、変速が完了するまでレバー
操作を持続せねばならなくなつて、本来の操作性
の良さを半減してしまうものであつた。 In addition, as a means to solve such problems, for example, it is possible to provide a movement resistance to the operating lever so that the operating lever does not precede the operation of the gear shifting drive mechanism,
It is possible to restrict changes in the relative relationship between the drive mechanism and the operating lever so that the amount of advance of the operating lever is always small, but doing so would make shifting operations more difficult or require the lever operation to be continued until the shifting is completed. It had to be sustained, and its original operability was halved.
本考案は、このような点に着目してなされたも
のであつて、冒記構成の変速装置において、前記
操作レバーの前後進切換操作域での操作を牽制す
る状態と牽制解除する状態とに切換可能な牽制機
構を設け、出力回転速度が零又はこれに近い極低
速になるように前記主変速機構が操作されたとき
にのみ前記牽制機構による牽制を解除するよう
に、前記牽制機構と前記駆動機構とを連係させて
あることを特徴とする。 The present invention has been made with attention to these points, and in the transmission device having the above configuration, there is a state in which the operation of the operating lever in the forward/reverse switching operation range is checked and a state in which the check is released. A switchable check mechanism is provided, and the check mechanism and the It is characterized by being linked with a drive mechanism.
つまり、本考案によれば前進変速域又は後進変
速域での変速操作時には、操作レバーの変速用駆
動機構に対する先行を許して本来の迅速で軽快な
レバー操作を行えるとともに、前後進の切換え時
においてのみレバー先行を阻止してギヤ咬合不良
による異音やギヤ破損の発生を防止することが可
能となつた。 In other words, according to the present invention, when changing gears in the forward or reverse gear range, the operating lever is allowed to precede the gear shifting drive mechanism, allowing the original quick and light lever operation, and when switching between forward and reverse. By preventing the lever from moving forward, it is now possible to prevent abnormal noise and gear damage due to gear misalignment.
以下本考案の実施例を図面に基づいて説明す
る。 Embodiments of the present invention will be described below based on the drawings.
第１図は作業車の一例にあげたコンバインの側
面を示し、脱穀装置１を搭載しクローラ走行装置
２を装備した走行車体の前部に植立穀稈を引起し
刈取つたのち後方上方に搬送して脱穀装置１のフ
イードチエーン３に横倒れ姿勢に変更して供給す
る刈取前処理部４が昇降自在に連結されている。 Fig. 1 shows the side view of a combine harvester, which is an example of a working vehicle, and the front part of the vehicle body is equipped with a threshing device 1 and a crawler traveling device 2, and the planted grain culm is pulled up and harvested, and then transported to the rear and upward. A reaping pre-processing section 4 is connected to the feed chain 3 of the threshing device 1 so as to be able to move up and down.
第２図は前記クローラ走行装置２の変速装置を
示すものであつて、エンジン出力軸５と走行ミツ
シヨンケース６に設けた中継軸７がベルト８にて
連動連結されるとともに、この中継軸７とミツシ
ヨンケース６の入力軸９とがベルト式の無段主変
速機構１０にて連動連結され、入力軸９が定方向
回転状態で停止を含む一定範囲で無段に変速が可
能となつている。又、ミツシヨンケース６内には
ギヤシフトによつて前後進の切換えを行う前後進
切換え機構（図示せず）と前進速度を大きく三段
F1，F2，F3に切換える副変速機構（図示せず）
が内装されている。そして、前記主変速機構１０
は、操作レバーとしての主変速レバー１２の前後
進変速操作域２６ｆ，２６ｒでの操作に基づい
て、変速操作機構並びに駆動機構２０を介して操
作され、前記前後進切換え機構の操作アーム１１
は、前記主変速レバー１２の前後進切換操作域２
６frでの操作に基づいて、連係機構の一例として
のリンクを介して操作されるようになつている。 FIG. 2 shows a transmission of the crawler traveling device 2, in which an engine output shaft 5 and a relay shaft 7 provided on a traveling transmission case 6 are interlocked and connected by a belt 8, and this relay shaft 7 The input shaft 9 of the transmission case 6 is interlocked with the input shaft 9 of the transmission case 6 by a belt-type continuously variable main transmission mechanism 10, and the input shaft 9 can be continuously changed in speed within a certain range including stopping while rotating in a fixed direction. There is. In addition, inside the transmission case 6, there is a forward/reverse switching mechanism (not shown) that switches between forward and backward movement using a gear shift, and a forward speed switching mechanism (not shown) that changes the forward speed into three large steps.
Sub-transmission mechanism that switches to F 1 , F 2 , and F 3 (not shown)
It's decorated. The main transmission mechanism 10
is operated via the shift operation mechanism and the drive mechanism 20 based on the operation in the forward/reverse shift operation areas 26f, 26r of the main shift lever 12 as an operation lever, and the operation arm 11 of the forward/reverse shift mechanism is operated.
is the forward/reverse switching operation range 2 of the main shift lever 12.
Based on the operation in 6fr, it is operated via a link as an example of a linkage mechanism.
前記主変速機構１０は、第５図に示すように分
割プーリのスラスト移動によつてベルト巻回有効
径を無段に変更できる原動側可変径プーリ１４と
受動側可変径プーリ１５に亘つてベルト１６を巻
回張設し、原動側可変径プーリ１４の有効径変更
を回転カム機構１７にて強制的に行うとともに、
スラスト付勢バネ１８によつて大径変更方向に付
勢された受動側の可変径プーリ１５を原動側の径
変更と背反的に径変更させて無段の変速を行うも
のである。 As shown in FIG. 5, the main transmission mechanism 10 has a driving side variable diameter pulley 14 and a passive side variable diameter pulley 15, which can continuously change the belt winding effective diameter by thrust movement of the split pulleys. 16 is wound and tensioned, and the effective diameter of the driving side variable diameter pulley 14 is forcibly changed by the rotary cam mechanism 17,
The variable diameter pulley 15 on the passive side, which is biased in the direction of large diameter change by the thrust biasing spring 18, changes its diameter contrary to the diameter change on the driving side, thereby performing stepless speed change.
前記回転カム機構１７は、軸心方向に位置固定
の回動カム１７ａを回動させることによつて、こ
れに対するカムフオロア１７ｂをスラスト変位さ
せて、可変径プーリ１４をスラスト変位させるよ
うにしたものであり、前記回動カム１７ａから連
設の挿作アーム１９と、駆動機構の一例としての
正逆転電動モータ２０に減速連動された駆動アー
ム２１とがリンク２２で連動連結され、もつてモ
ータ２０の正逆転によつて増減速が行われるよう
になつている。 The rotary cam mechanism 17 is configured so that by rotating a rotary cam 17a whose position is fixed in the axial direction, a cam follower 17b is thrust-displaced relative to the rotary cam 17a, and the variable-diameter pulley 14 is thrust-displaced. An insertion arm 19 connected to the rotary cam 17a and a drive arm 21 which is decelerated and interlocked with a forward/reverse electric motor 20 as an example of a drive mechanism are interlocked and connected by a link 22. Acceleration and deceleration are performed by forward and reverse rotation.
又、前記主変速レバー１２は横軸心Ｘ周りに前
後に揺動可能に構成されるとともに、前後軸心Ｙ
周りに左右にも揺動可能に構成されており、横軸
心Ｘ周りの揺動操作量としての揺動角度が、レバ
ー支軸２３にギヤ連動された操作量検出装置の一
例としての可変抵抗器２４からの出力電圧とし検
出され、他方、前記駆動アーム２１の揺動角度が
同じく可変抵抗器２５の出力電圧として検出さ
れ、主変速レバー１２の前後揺動位置に応じて予
め設定してある位置まで駆動アーム２１を揺動さ
せるように、両検出結果に基づいて電動モータ２
０が正逆転駆動制御される変速操作機構を設けて
ある。 Further, the main shift lever 12 is configured to be able to swing back and forth around the horizontal axis X, and around the front and rear axis Y.
It is configured to be able to swing left and right around the horizontal axis, and the swing angle as the swing operation amount around the horizontal axis On the other hand, the swing angle of the drive arm 21 is also detected as the output voltage of the variable resistor 25, which is set in advance according to the longitudinal swing position of the main shift lever 12. Based on both detection results, the electric motor 2 is activated to swing the drive arm 21 to the position.
0 is provided with a speed change operation mechanism that controls forward and reverse drive.
又、前記変速レバー１２の前後進切換え操作径
路２６frの中間には、前方への倒伏によつて前記
径路２６frを横切つてレバー１２の移動を阻止
し、上方への起立によつて径路２６frから退避し
てレバー１２の移動を許す前後進切換え牽制アー
ム２７が枢支されていて、これが前記駆動アーム
２１にリンク２８にて連動連結されている。そし
て、駆動アーム２１が主変速機構１０の操作アー
ム１９を停止位置ｎにまで駆動移動させた時点で
のみ牽制アーム２７が牽制解除姿勢に起立され、
操作アーム１９が停止位置ｎから外れているとき
には牽制姿勢になつているよう連係されている。 Further, in the middle of the forward/reverse switching operating path 26fr of the gear shift lever 12, the movement of the lever 12 is prevented by crossing the path 26fr by falling forward, and from the path 26fr by rising upward. A forward/reverse switching check arm 27 which is retracted and allows movement of the lever 12 is pivotally supported, and is interlocked and connected to the drive arm 21 by a link 28. Then, only when the drive arm 21 drives and moves the operating arm 19 of the main transmission mechanism 10 to the stop position n, the check arm 27 is raised to the check release position,
When the operating arm 19 is out of the stop position n, it is linked so that it is in a check posture.
従つて、上記構成によると、前進変速操作径路
２６ｆもしくは後進変速操作径路２６ｒでの変速
操作時には変速レバー１２を駆動アーム２１より
も先行して急速に所望の変速位置に移動操作する
ことができるが、前後進の切換え時には操作アー
ム１９が停止位置ｎに戻されてからでないと変速
レバー１２を前後進切換え操作径路２６frで移動
操作することができないものとなつている。 Therefore, according to the above configuration, when performing a gear change operation on the forward shift operation path 26f or the reverse shift operation path 26r, the shift lever 12 can be rapidly moved to a desired shift position in advance of the drive arm 21. When switching between forward and reverse, the shift lever 12 cannot be moved along the forward/reverse switching operation path 26fr unless the operating arm 19 is returned to the stop position n.
尚、図中の３６は、前記主変速機構１０の原動
側可変径プーリ１４に装備された遊転カラーであ
つて、このプーリ１４の有効径が最小になつたと
き、つまり最も減速されたときベルト１６がこの
カラー２８に作用してベルト伝動が断たれるよう
になつている。又、２９は、前記中継軸７の支持
ブラケツトであつて、ミツシヨンケース６に対し
て支点Ｐを中心に揺動調節固定自在に取付けら
れ、主変速機構１０のベルト交換時に中継軸７を
入力軸９に近づけてベルト１６の着脱を容易に行
えるようになつている。又、３０は主変速レバー
１２の側部に設けた速度表示装置であつて、前記
駆動アーム２１にワイヤ３１にて連係されて前後
動する指針３２を前後進変速操作域全長に亘つて
移動させて細かい速度設定を行いやすくしてい
る。又、３３は変速レバー１２を任意の変速位置
に摩擦保持しておくための板バネである。 Reference numeral 36 in the figure is an idling collar installed on the driving side variable diameter pulley 14 of the main transmission mechanism 10, and is used when the effective diameter of this pulley 14 becomes the minimum, that is, when the speed is decelerated the most. The belt 16 acts on this collar 28 to cut off belt transmission. Reference numeral 29 denotes a support bracket for the relay shaft 7, which is attached to the transmission case 6 so as to be able to swing and adjust freely around a fulcrum P. The belt 16 is placed close to the shaft 9 so that the belt 16 can be easily attached and detached. Further, 30 is a speed display device provided on the side of the main shift lever 12, and a pointer 32 that is connected to the drive arm 21 by a wire 31 and moves back and forth is moved over the entire length of the forward and backward shift operation range. This makes it easy to make detailed speed settings. Further, 33 is a leaf spring for frictionally holding the speed change lever 12 at an arbitrary speed change position.
前記変速操作機構としては前述のように可変抵
抗器２４，２５からの出力を比較判別する方式の
他に、第７図に示すように、主変速レバー１２に
よつて有段階に切換えられるスイツチ機構３４か
らの信号を制御回路３５に入力して、電動モータ
２０の正逆転並びに停止制御を行うことも可能で
ある。 In addition to the above-mentioned method of comparing and determining the outputs from the variable resistors 24 and 25, the speed change operating mechanism may also include a switch mechanism that is switched in stages by the main speed change lever 12, as shown in FIG. It is also possible to input the signal from 34 to the control circuit 35 to perform forward/reverse rotation and stop control of the electric motor 20.
尚、実用新案登録請求の範囲の項に図面との対
照を便利にする為に符号を記すが、該記入により
本考案は添付図面の構造に限定されるものではな
い。 Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.
図面は本考案に係る作業車の変速装置の実施例
を示し、第１図はコンバインの全体側面図、第２
図は変速装置の側面図、第３図は変速操作部の平
面図、第４図は主変速操作部の平面図、第５図は
主変速部の正面図、第６図はその側面図、第７図
は別の実施例による変速操作機構の側面図であ
る。
１０……無段主変速機構、１２……操作レバ
ー、２６ｆ……前進変速操作域、２６ｒ……後進
変速操作域、２６fr……前後進切換操作域、２０
……駆動機構。
The drawings show an embodiment of the transmission device for a work vehicle according to the present invention, and FIG. 1 is an overall side view of a combine harvester, and FIG.
3 is a plan view of the transmission operation section, FIG. 4 is a plan view of the main transmission operation section, FIG. 5 is a front view of the main transmission section, and FIG. 6 is a side view thereof. FIG. 7 is a side view of a speed change operation mechanism according to another embodiment. 10...Continuous main transmission mechanism, 12...Operation lever, 26f...Forward shift operation range, 26r...Reverse shift operation range, 26fr...Forward/forward switching operation range, 20
...Drive mechanism.
Claims (1)
速機構１０と、前記主変速機構１０を操作する
ための駆動機構２０と、前記主変速機構１０の
伝動下手側に配備されるギヤシフト式の前後進
切換え機構と、前進変速操作域２６ｆと後進変
速操作域２６ｒと前後進切換操作域２６frとを
備えた操作レバー１２と、前記前後進変速操作
域２６ｆ，２６ｒでの操作レバー１２の操作量
を検出して、その操作量に見合う量だけ前記駆
動機構２０を自動作動させる変速操作機構と、
前記前後進切換操作域２６frでの操作レバー１
２の操作に連係して前記前後進切換え機構を操
作する連係機構とを備えた作業車の変速装置に
おいて、前記操作レバー１２の前後進切換操作
域２６frでの操作を牽制する状態と牽制解除す
る状態とに切換可能な牽制機構を設け、出力回
転速度が零又はこれに近い極低速になるように
前記主変速機構１０が操作されたときにのみ前
記牽制機構による牽制を解除するように、前記
牽制機構と前記駆動機構２０とを連係させてあ
ることを特徴とする作業車の変速装置。 ２ 主変速装置１０がベルト式無段変速機構であ
る実用新案登録請求の範囲第１項に記載の作業
車の変速装置。[Claims for Utility Model Registration] 1. A main transmission mechanism 10 that performs continuously variable transmission in a constant direction rotation transmission system, a drive mechanism 20 for operating the main transmission mechanism 10, and a transmission mechanism of the main transmission mechanism 10. A gear shift type forward/reverse switching mechanism disposed on the side, an operating lever 12 equipped with a forward speed change operation area 26f, a reverse speed change operation area 26r, and a forward/reverse speed change operation area 26fr, and the forward/reverse speed change operation areas 26f, 26r. a shift operation mechanism that detects the amount of operation of the operating lever 12 at and automatically operates the drive mechanism 20 by an amount corresponding to the amount of operation;
Operation lever 1 in the forward/reverse switching operation area 26fr
In the transmission device for a work vehicle, the transmission device is equipped with a linkage mechanism that operates the forward/reverse switching mechanism in conjunction with the operation described in item 2, in which the operation of the operating lever 12 in the forward/reverse switching operation range 26fr is checked and the check is released. A check mechanism is provided that can be switched between states, and the check by the check mechanism is released only when the main transmission mechanism 10 is operated so that the output rotational speed becomes zero or an extremely low speed close to this. A transmission device for a work vehicle, characterized in that a check mechanism and the drive mechanism 20 are linked. 2. The transmission for a work vehicle according to claim 1, wherein the main transmission 10 is a belt-type continuously variable transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980146231U JPS6232899Y2 (en) | 1980-10-13 | 1980-10-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980146231U JPS6232899Y2 (en) | 1980-10-13 | 1980-10-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5767830U JPS5767830U (en) | 1982-04-23 |
| JPS6232899Y2 true JPS6232899Y2 (en) | 1987-08-22 |
Family
ID=29505812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980146231U Expired JPS6232899Y2 (en) | 1980-10-13 | 1980-10-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6232899Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6481132B2 (en) * | 2016-07-15 | 2019-03-13 | 株式会社ショーシン | Transmission device for work vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5728666Y2 (en) * | 1976-11-16 | 1982-06-23 |
-
1980
- 1980-10-13 JP JP1980146231U patent/JPS6232899Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5767830U (en) | 1982-04-23 |
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