JP2633408B2 - Automatic reduction gear for agricultural work vehicles - Google Patents
Automatic reduction gear for agricultural work vehiclesInfo
- Publication number
- JP2633408B2 JP2633408B2 JP10782791A JP10782791A JP2633408B2 JP 2633408 B2 JP2633408 B2 JP 2633408B2 JP 10782791 A JP10782791 A JP 10782791A JP 10782791 A JP10782791 A JP 10782791A JP 2633408 B2 JP2633408 B2 JP 2633408B2
- Authority
- JP
- Japan
- Prior art keywords
- speed
- turning
- traveling
- automatic
- traveling speed
- 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
- Transplanting Machines (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、田植機やコンバイン等
の農作業車の自動減速装置に係り、詳しくは、対地作業
走行から非作業状態の旋回走行に移行させるための変更
指令に基づいて機体の進行速度を減ずるべく走行用のミ
ッションを自動的に減速操作する自動減速機構を装備し
てある農作業車の自動減速装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic speed reducer for an agricultural work vehicle such as a rice transplanter or a combine, and more particularly, to an automatic speed reducer based on a change command for shifting from ground work traveling to non-working turning travel. The present invention relates to an automatic deceleration device for an agricultural work vehicle equipped with an automatic deceleration mechanism for automatically decelerating a traveling mission so as to reduce the traveling speed of the vehicle.
【０００２】[0002]
【従来の技術】この種の自動減速装置としては、従来、
特開平２−２８６００２号公報で示されたもののよう
に、枕地での旋回時になされる植付装置の上昇移動に伴
ってベルト無段式の副変速装置を減速操作するものが知
られている。2. Description of the Related Art Conventionally, as this kind of automatic reduction gear,
As disclosed in Japanese Patent Application Laid-Open No. Hei 2-286002, there is known an apparatus in which a stepless belt-type sub-transmission is decelerated in accordance with a rising movement of a planting apparatus performed at the time of turning on a headland. .
【０００３】[0003]
【発明が解決しようとする課題】前記従来技術による自
動減速装置では、旋回走行速度を最低速度にまで落とす
ようにしていたので、誰が操縦しても、あるいは、深い
湿田であってもエンストなく確実に旋回できるという利
点があるが、慣れた操縦者が比較的高速で植付作業走行
を行い、枕地でも迅速に旋回したいという場合でも該旋
回時には最低速度まで減速されるため、熟練者が作業能
率を上げることの妨げになるという不都合があった。そ
こで、図２に示すように、副変速装置２を変速操作する
電動シリンダ９、副変速装置２の人為変速レバー１２、
植付クラッチレバー１１、及び旋回時の減速速度を選択
して設定する旋回速度設定器１７夫々を制御装置１０に
接続して成る走行制御装置が試みられた。つまり、自動
減速時の旋回速度を操縦者が任意に設定できるようにす
ることにより、熟練者は速い速度に、未熟者は遅い速度
に夫々予め設定できるようにすることが考えられたので
ある（この制御では変速レバー１２によってきまる走行
速度が旋回速度設定器１７によって決まる走行速度より
も速い場合には、変速レバー１２の操作が旋回速度設定
器１７の操作に優先するものである）。しかしながら、
その手段でも設定器の誤操作や入れ忘れ等によって未熟
者が操縦しているにも拘らず急速旋回するという懸念が
解消されないため、さらなる改善の余地があった。本発
明の目的は、操縦の熟練度に見合った高作業能率を旋回
走行時でも確実に現出できるようにした自動減速装置を
得る点にある。In the automatic deceleration device according to the prior art, the turning speed is reduced to the minimum speed, so that no matter who is maneuvering or even in a deep wet field, there is no stalling. However, even if a trained operator performs planting work at a relatively high speed and wants to turn quickly even on a headland, the speed is reduced to the minimum speed at the time of turning, so that a skilled worker There was an inconvenience that it hindered efficiency. Therefore, as shown in FIG. 2, the electric cylinder 9 for shifting the sub-transmission 2, the artificial transmission lever 12 of the sub-transmission 2,
A running control device in which the planting clutch lever 11 and a turning speed setting device 17 for selecting and setting a deceleration speed during turning are connected to the control device 10 has been tried. In other words, it was conceived that by allowing the operator to arbitrarily set the turning speed at the time of automatic deceleration, the skilled person could be set to a high speed in advance, and the unskilled person could be set to a low speed in advance. In this control, when the traveling speed determined by the shift lever 12 is higher than the traveling speed determined by the turning speed setter 17, the operation of the shift lever 12 has priority over the operation of the turning speed setter 17). However,
Even with such means, there is room for further improvement because the concern that the inexperienced person turns quickly due to erroneous operation of the setting device or forgetting to put it on despite being operated by an inexperienced person cannot be eliminated. SUMMARY OF THE INVENTION It is an object of the present invention to provide an automatic speed reducer capable of surely exhibiting a high working efficiency corresponding to the skill level of maneuvering even during turning.
【０００４】[0004]
【課題を解決するための手段】上記目的のために本発明
は、冒頭に記載した農作業車の自動減速装置において、
自動減速機構に、これの作動によって現出される旋回走
行状態での走行速度の値を、該旋回走行に移行する以前
の対地作業走行速度の値に所定の減速比率を乗じること
によって設定する設定手段を備えてあることを特徴構成
とする。According to the present invention, there is provided an automatic speed reducer for an agricultural work vehicle described at the beginning.
A setting in which the value of the traveling speed in the turning traveling state, which appears by the operation of the automatic deceleration mechanism, is set by multiplying the value of the ground work traveling speed before shifting to the turning traveling by a predetermined deceleration ratio. It is characterized by having means.
【０００５】[0005]
【作用】対地作業走行速度は操縦者の熟練度合いによっ
て左右される。すなわち、作業状態を確認しながら、ま
た、走行方向を修正しながら正常な作業状態を現出させ
るのに、走行に伴うそれら一連の操縦が慣れていない未
熟者は緩速で作業走行し、慣れている熟練者は作業能率
向上のため迅速に作業走行する。故に、枕地での旋回走
行速度を、その旋回以前の作業速度に所定減速比率を乗
じた速度（例えば作業走行速度の５０パーセントの速
度）に減速するようにすれば、元々遅い作業走行速度を
選んでいる未熟者の操縦時における旋回走行速度が、そ
の遅い作業走行速度よりもさらに遅い速度に設定される
とともに、元々速い作業走行速度を選んでいる熟練者の
操縦時における旋回走行速度が、その速い作業走行速度
よりも遅いが未熟者の旋回走行速度よりは速いものに設
定されるようになる。この減速比率を設定する構成で
は、操縦者が異なってもその設定手段が操作されないも
のであるから、従来のように減速度を間違うとか誤操作
するというおそれが解消されるようになる。The ground running speed depends on the skill level of the pilot. In other words, in order to bring out a normal working state while confirming the working state and correcting the running direction, an immature person who is not accustomed to such a series of maneuvers accompanying running will work slowly and get used to A skilled worker travels quickly to improve work efficiency. Therefore, if the turning traveling speed at the headland is reduced to a speed obtained by multiplying the working speed before the turning by a predetermined deceleration ratio (for example, 50% of the working traveling speed), the originally low working traveling speed can be reduced. The turning traveling speed at the time of the steering of the selected unskilled person is set to a speed even slower than the slow working traveling speed, and the turning traveling speed at the time of the steering of the skilled person who originally selected the fast working traveling speed is The speed is set to be lower than the fast work traveling speed but faster than the turning traveling speed of the inexperienced person. In this configuration for setting the deceleration ratio, the setting means is not operated even if the operator is different, so that the risk of wrong deceleration or erroneous operation as in the related art can be eliminated.
【０００６】[0006]
【発明の効果】従って、熟練度によって作業走行速度が
異なることを利用しての工夫により、未熟者ではその腕
前に見合った緩速で確実に旋回走行できて安全上好まし
いとともに、熟練者ではその腕前に見合った迅速で高能
率に旋回走行できて作業能率向上の点で好ましいものと
なる旋回速度の減速制御が確実に遂行されるようにな
り、もって安全面のみならず能率の点でも優れた農作業
車の自動減速装置を信頼性に優れた状態で実現できた。Thus, by utilizing the fact that the work traveling speed varies depending on the skill level, the inexperienced person can turn reliably at a slow speed commensurate with his / her skill, which is preferable in terms of safety. It is possible to turn quickly and efficiently in line with the skill, and the turning speed deceleration control, which is preferable in terms of improving work efficiency, is surely performed, so that not only safety but also efficiency are excellent. The automatic speed reducer of the agricultural work vehicle was realized with excellent reliability.
【０００７】[0007]
【実施例】以下に、本発明の実施例を農作業車の一例で
ある乗用型田植機の場合について、図面に基づいて説明
する。図１に乗用型田植機の伝動構造が示されている。
エンジン１の動力をベルト式の無段変速装置で構成され
る副変速装置２を介して多段ギヤ変速装置で構成された
主変速装置３に入力し、主変速装置３の出力を伝動シャ
フト４を用いて図示しない駆動輪に伝動する構成であ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings for a case of a riding type rice transplanter which is an example of an agricultural work vehicle. FIG. 1 shows a transmission structure of a riding type rice transplanter.
The power of the engine 1 is input to a main transmission 3 composed of a multi-stage gear transmission via an auxiliary transmission 2 composed of a belt-type continuously variable transmission, and the output of the main transmission 3 is transmitted to a transmission shaft 4. And is used to transmit to driving wheels (not shown).
【０００８】副変速装置２は、エンジン１の出力軸に取
付けた割プーリ構造の駆動プーリ５とミッション３の入
力軸に取付けた受動プーリ６とに跨がってベルト７を巻
回するとともに、ベルト７に作用して変速比を可変する
テンションローラ８を設けて構成してある。９はテンシ
ョンローラ８を揺動操作する電動シリンダである。１０
はマイクロコンピュータ利用の制御装置であり、前記電
動シリンダ９、植付クラッチレバー１１、副変速装置２
操作用の変速レバー１２、電動シリンダ９の操作量を検
出する直線ポテンショメータ１５、及び自動減速制御を
入り切りする起動スイッチ１３が夫々制御装置１０に接
続してある。この田植機では、起動スイッチ１３が入り
操作されていると、対地作業走行から非作業状態の旋回
走行に移行させるための変更指令、すなわち変速レバー
１２が走行状態となるように操作されているときに植付
クラッチレバー１１が切り操作されると、機体の進行速
度を減ずるべく電動シリンダ９を作動させて副変速装置
（ミッションに相当）２を自動的に減速操作するように
制御装置１０が機能する自動減速制御状態が現出され
る。つまり、起動スイッチ１３と制御装置１０とによっ
て自動減速機構Ａが構成されるのである。The auxiliary transmission 2 winds a belt 7 over a drive pulley 5 having a split pulley structure attached to the output shaft of the engine 1 and a passive pulley 6 attached to the input shaft of the transmission 3. A tension roller 8 acting on the belt 7 to change the gear ratio is provided. Reference numeral 9 denotes an electric cylinder that swings the tension roller 8. 10
Is a control device using a microcomputer, and includes the electric cylinder 9, the planting clutch lever 11, the auxiliary transmission 2
A shift lever 12 for operation, a linear potentiometer 15 for detecting an operation amount of the electric cylinder 9, and a start switch 13 for turning on / off automatic deceleration control are connected to the control device 10. In this rice transplanter, when the start switch 13 is turned on and operated, a change command for shifting from ground work traveling to non-working turning travel, that is, when the shift lever 12 is operated to be in the traveling state. When the clutch lever 11 is disengaged, the control device 10 operates the electric cylinder 9 so as to reduce the traveling speed of the body and automatically decelerates the auxiliary transmission (corresponding to the transmission) 2. The automatic deceleration control state is displayed. That is, the activation switch 13 and the control device 10 constitute the automatic deceleration mechanism A.
【０００９】そして、自動減速機構Ａに、これの作動に
よって現出される旋回走行状態での走行速度の値を、該
旋回走行に移行する以前の対地作業走行速度の値に所定
の減速比率を乗じることによって設定する設定手段Ｂを
備えてある．つまり、変速レバー１２の操作量を検出す
るポテンショメータ１４を制御装置１０に入力してあ
り、変速レバー１２の操作量に応じて現出される走行速
度が予め制御装置１０に記憶されているので、植付クラ
ッチレバー１１が切り操作されると、該植付クラッチレ
バー１１の切り操作以前に変速レバー１２の操作で現出
されている速度の半分になるように、直線ポテンショメ
ータ１５でフィードバック制御しながら電動シリンダ９
を作動させて副変速装置２を減速操作するのであり、こ
れによって旋回走行速度の値を旋回走行に移行する以前
の対地作業走行速度の値に所定の減速比率を乗じること
によって設定する設定手段Ｂが制御装置１０によって構
成されている。減速制御で現出されるべき旋回時の走行
速度が最低速度よりも低い場合は、その最低速度に設定
されるようになる。起動スイッチ１３を切り操作してお
けば自動減速制御は働かないので、旋回時に減速させる
には変速レバー１２を操作して電動シリンダ９を駆動操
作する人為操作形態になる。この実施例では、減速比率
を０，５に設定してあるが、その値は０，６等色々考え
られる。また、図１に仮想線で示すように、所定の減速
比率を乗じる設定器１６を制御装置１０に接続し、極僅
かな範囲で（例えば０．５から０．６の間）減速比率を
選択設定可能に構成すれば便利である。Then, the automatic deceleration mechanism A is provided with a value of the traveling speed in the turning traveling state appearing by the operation of the automatic deceleration mechanism A and a predetermined deceleration ratio to the value of the ground work traveling speed before the transition to the turning traveling. Setting means B for setting by multiplication is provided. That is, since the potentiometer 14 for detecting the operation amount of the shift lever 12 is input to the control device 10 and the traveling speed appearing according to the operation amount of the shift lever 12 is stored in the control device 10 in advance, When the planting clutch lever 11 is disengaged, feedback control is performed by the linear potentiometer 15 so that the speed becomes half of the speed appearing by operating the transmission lever 12 before the planting clutch lever 11 is disengaged. Electric cylinder 9
Is operated to decelerate the auxiliary transmission 2, whereby the value of the turning traveling speed is set by multiplying the value of the ground working traveling speed before shifting to the turning traveling by a predetermined deceleration ratio B. Is constituted by the control device 10. If the traveling speed at the time of turning that should appear in the deceleration control is lower than the minimum speed, the minimum speed is set. If the start switch 13 is turned off, the automatic deceleration control does not work. Therefore, in order to decelerate at the time of turning, a manual operation mode in which the shift lever 12 is operated to drive and operate the electric cylinder 9 is adopted. In this embodiment, the deceleration ratio is set to 0,5, but the value may be 0,6, etc. Also, as shown by a virtual line in FIG. 1, a setting device 16 for multiplying a predetermined deceleration ratio is connected to the control device 10, and a deceleration ratio is selected within a very small range (for example, between 0.5 and 0.6). It is convenient if it can be configured.
【００１０】尚、特許請求の範囲の項に図面との対照を
便利にするために符号を記すが、該記入により本発明は
添付図面の構成に限定されるものではない。[0010] In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.
【図１】自動減速装置の制御系統図FIG. 1 is a control system diagram of an automatic reduction gear transmission.
【図２】自動減速装置の比較例を示す制御系統図FIG. 2 is a control system diagram showing a comparative example of the automatic reduction gear transmission.
２ ミッション Ａ 自動減速機構 Ｂ 設定手段 2 Mission A Automatic reduction mechanism B Setting means
Claims (1)
に移行させるための変更指令に基づいて機体の進行速度
を減ずるべく走行用のミッション（２）を自動的に減速
操作する自動減速機構（Ａ）を装備してある農作業車の
自動減速装置であって、前記自動減速機構（Ａ）に、こ
れの作動によって現出される前記旋回走行状態での走行
速度の値を、該旋回走行に移行する以前の対地作業走行
速度の値に所定の減速比率を乗じることによって設定す
る設定手段（Ｂ）を備えてある農作業車の自動減速装
置。An automatic deceleration mechanism for automatically decelerating a traveling mission (2) to reduce the traveling speed of an aircraft based on a change command for shifting from ground work traveling to non-working turning travel. A) The automatic deceleration device for an agricultural work vehicle equipped with A), wherein the automatic deceleration mechanism (A) is provided with a value of the traveling speed in the turning traveling state that appears by the operation of the automatic deceleration mechanism (A). An automatic deceleration device for an agricultural work vehicle, comprising setting means (B) for setting by multiplying a value of a ground work traveling speed before shifting by a predetermined deceleration ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10782791A JP2633408B2 (en) | 1991-05-14 | 1991-05-14 | Automatic reduction gear for agricultural work vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10782791A JP2633408B2 (en) | 1991-05-14 | 1991-05-14 | Automatic reduction gear for agricultural work vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04335814A JPH04335814A (en) | 1992-11-24 |
| JP2633408B2 true JP2633408B2 (en) | 1997-07-23 |
Family
ID=14469046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10782791A Expired - Lifetime JP2633408B2 (en) | 1991-05-14 | 1991-05-14 | Automatic reduction gear for agricultural work vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2633408B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4749762B2 (en) * | 2005-05-19 | 2011-08-17 | ヤンマー株式会社 | Riding speed control device for passenger tractor |
-
1991
- 1991-05-14 JP JP10782791A patent/JP2633408B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04335814A (en) | 1992-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4663714A (en) | Synchronized mid-mounted clutch for variable power train | |
| JP2633408B2 (en) | Automatic reduction gear for agricultural work vehicles | |
| JP3647511B2 (en) | Vehicle speed control device for working vehicle | |
| JP2834360B2 (en) | Work vehicle travel control device | |
| JPH06159496A (en) | Control method of preventing engine stall | |
| JPH0874995A (en) | Automatic speed changing structure of working vehicle | |
| JP2809256B2 (en) | Operation structure of the continuously variable transmission | |
| JP2587159Y2 (en) | Unmanned operation device for forward / reverse switching mechanism in work vehicle | |
| JPH0322352B2 (en) | ||
| JPH06225625A (en) | Structure for driving of combine harvester | |
| JP2852100B2 (en) | Work vehicle travel control structure | |
| JPS6288626A (en) | Device for controlling deceleration in traveling machine body for working | |
| JPH02256957A (en) | Transmission of working vehicle | |
| JP2591024B2 (en) | Power control device for power vehicle | |
| JP3503590B2 (en) | Agricultural work vehicle transmission | |
| JPH0721380Y2 (en) | Gear change operation device in work vehicle | |
| JP2763797B2 (en) | Work vehicle | |
| JPH01160427A (en) | Controller for car speed of mobile agricultural machine or the like | |
| KR960012238B1 (en) | Driving equipment by hydro-static transmission | |
| JPS6247491B2 (en) | ||
| JP3025132B2 (en) | Travel control mechanism of agricultural work machine | |
| JPH0625658U (en) | Shifting structure of agricultural work vehicle | |
| JP3455361B2 (en) | Work vehicle traveling speed change structure | |
| JPH0446268A (en) | Working vehicle | |
| JPH0642632A (en) | Speed change gear controller for working vehicle |