JPH01256303A - Tractor - Google Patents

Tractor

Info

Publication number
JPH01256303A
JPH01256303A JP8189588A JP8189588A JPH01256303A JP H01256303 A JPH01256303 A JP H01256303A JP 8189588 A JP8189588 A JP 8189588A JP 8189588 A JP8189588 A JP 8189588A JP H01256303 A JPH01256303 A JP H01256303A
Authority
JP
Japan
Prior art keywords
switch
transmission
lever
pto
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.)
Pending
Application number
JP8189588A
Other languages
Japanese (ja)
Inventor
Yuji Kanefuji
祐治 金藤
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.)
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Original Assignee
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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 Iseki and Co Ltd, Iseki Agricultural Machinery Mfg Co Ltd filed Critical Iseki and Co Ltd
Priority to JP8189588A priority Critical patent/JPH01256303A/en
Publication of JPH01256303A publication Critical patent/JPH01256303A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02Bases, casings, or covers
    • H01H9/06Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
    • H01H2009/066Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner having switches mounted on a control handle, e.g. gear shift lever

Landscapes

  • Lifting Devices For Agricultural Implements (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Control Of Transmission Device (AREA)
  • Agricultural Machines (AREA)

Abstract

PURPOSE:To improve operation, by handling engagement and disengagement of forward movement, backward movement, suspension, rise and fall of working machine and PTO by one lever. CONSTITUTION:A tractor is moved forward, backward or stopped by handing a lever 1 before and behind. The lever 1 is equipped with a rise indicating switch 5, a drop indicating switch 6 and a trigger switch 7. The rise indicator switch 5 and the drop indicating switch 6 carry out raising and dropping of a working machine attached to the tractor, respectively. The trigger switch 7 can perform disengagement of drive of PTO shaft when the shaft is engaged and inverting action to engage the shaft when disengaged and can engage and disengage of drive of the working machine according to rise and fall of the working machine.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、トラクタに関し、トラクタ作業装置の昇降
制御および伝動制御に利用できる。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a tractor and can be used for lifting control and transmission control of a tractor working device.

従来の技術、および発明が解決しようとする問題点 一般にPTOの伝動系において、動力源に近い側の上位
の元スイッチ等をONI、て、これより下位側において
、作業機の昇降等に関連して伝動入切する構成であるが
、トラクタが停止中は作業装置を降下しただけではPT
Oを自動的に伝動させない方が、安全である。しかし、
実作業では車体を停止させて、例えば畦際等でロータリ
耕耘装置を徐々に降下しながらPTOを伝動入り操作し
てロータリを回転させたい場合がある。
Prior Art and Problems to be Solved by the Invention In general, in a PTO transmission system, the upper source switch, etc. on the side closer to the power source is ONI, and the lower side is connected to However, when the tractor is stopped, simply lowering the work equipment will cause the PT to turn on and off.
It is safer not to automatically transmit O. but,
In actual work, there are cases where it is desired to stop the vehicle body and rotate the rotary by operating the PTO to engage the transmission while gradually lowering the rotary tilling device, for example at the edge of a ridge.

また、作業進行(前進)中にロータリ耕耘装置の回転だ
けを止めたいこともある。このような要求に応じて且安
全をはかれる構成がのぞまれている。
Further, there may be cases where it is desired to stop only the rotation of the rotary tiller while the work is progressing (advancing). There is a need for a configuration that meets these demands and ensures safety.

問題点を解決するための手段 この発明は、レバー(1)を、直列させた前進(イ)、
停止(ロ)、後進(l\)、の各位置間に移動させて車
体(2)を変速する変速装設と、該重体(2)に連結し
た作業装置(3)をこの車体(2)に対して上昇下降さ
せることに連動してPTo軸(4)から該作業装置(3
)への伝動を切入させる連動装置とを有したトラクタに
おいて、該レバー(1)に、作業装置(3)の上昇指定
スイッチ(5)と、下降指定スイッチ(6)と、該PT
O軸(4)の伝動を入切変更できるl・リガスイッチ(
7)とを設け、該車体(2)の停車(ロ)と後進(ハ)
との場合には、作業装置(3)上昇のときに限定して連
動させて該PTO軸(4)から作業装置(3)への伝動
を切るよう限定連動構成したこと特徴とするトラクタの
構成とする。
Means for Solving the Problems This invention has a lever (1) that is arranged in series for forward movement (a);
This vehicle body (2) is equipped with a transmission device that changes the speed of the vehicle body (2) by moving it between stop (B) and reverse (l\) positions, and a working device (3) connected to the heavy body (2). The working device (3) is moved from the PTo axis (4) in conjunction with raising and lowering the work device (3).
), the lever (1) is equipped with a lift designation switch (5) and a descent designation switch (6) of the working device (3), and
l・Register switch (
7) is provided, and the vehicle body (2) is stopped (b) and reversed (c).
In this case, the structure of the tractor is characterized in that the limited interlocking structure is configured so that the working device (3) is interlocked only when the working device (3) is raised and the power transmission from the PTO shaft (4) to the working device (3) is cut off. shall be.

発明の作用、および効果 車体(2)を前進させて作業装置(3)の例えばロータ
リ耕耘装置(3)の耕耘作業をする場合は、レバー(1
)を前進(イ)位置において前進させ、レバー(1)に
設けられた下降指定スイッチ(6)をONすると1作業
装置(3)は下降し、適宜の位置まで下降したとき連動
装置に連動されてPTO軸(4)の伝動が入りロータリ
が回転して耕耘作業ができる。また、耕耘進行中に作業
装置(3)を浮上させずに車体(2)を停止させたいと
きは、レバー(1)を停止(ロ)位置に移動させて停止
すると共に、トリガスイッチ(7)をONさせると、P
TO軸(4)の伝動が「入り」であったものが「切り」
となり、ロータリの回転が旧って深く穴を掘ることがな
い、この状態から耕耘再開する場合には、トリガスイッ
チ(7)をONさせるか、又は他の伝動入切装置によっ
てロータリを回転させ、直後にレバー(1)を停止(ロ
)位置から前進(イ)位置へ移動させて耕耘ができる。
Functions and Effects of the Invention When moving the vehicle body (2) forward to perform tilling work using a working device (3), such as a rotary tilling device (3), the lever (1)
) in the forward (A) position and turn on the lowering designation switch (6) provided on the lever (1), the first working device (3) will lower, and when it has lowered to the appropriate position, it will be interlocked with the interlocking device. The PTO shaft (4) is then turned on, and the rotary rotates, allowing for plowing work. In addition, if you want to stop the vehicle body (2) without raising the working device (3) while plowing is in progress, move the lever (1) to the stop (B) position to stop, and also turn the trigger switch (7). When turned on, P
The transmission of the TO axis (4) was "in", but it is "off"
If you want to restart tilling in this state, where the rotary rotation is too old to dig a deep hole, turn on the trigger switch (7) or rotate the rotary using another transmission on/off device. Immediately thereafter, the lever (1) can be moved from the stop (B) position to the forward (A) position to begin plowing.

進行方向端において、旋回する直前に上昇指定スイッチ
(5)をON操作すると作業装置は上昇しながら連動さ
れてPTO軸(4)の伝動が「切り」となってロータリ
の回転が止り、上昇上限位置に停止する間に操向操作し
て旋回でき、旋回後前記同様にして耕耘作業進行ができ
る。
At the end of the direction of travel, if you turn on the rise designation switch (5) just before turning, the work equipment will move upward while interlocking, the transmission of the PTO shaft (4) will be turned off, the rotary will stop rotating, and the upper limit of the rise will be reached. While it is stopped at a certain position, it can be steered and turned, and after turning, the tilling work can be carried out in the same manner as described above.

また、コンクリート畦畔ぎわで車体(2)を停止(ロ)
させた状態でロータリ作業装置(3)を上昇位置からゆ
っくり下げながら退出な下降位置でロータリを回転させ
たい場合には、レバー(1)を停止(a)位置におき、
下降指定スイッチ(6)をONL、下降するに従ってO
N、0FFLながら降下させても、PTO軸(4)の伝
動は自動的入り操作はしないので、適宜の降下位置で畦
畔に接触しないことを確認してのちトリガスイッチ(7
)をONして、PTO軸(4)の伝動を「入り」にし、
適宜の耕深に降下させて、車体(1)を前進(イ)させ
ることができる。
In addition, the vehicle body (2) was stopped at the edge of a concrete ridge (b).
If you want to slowly lower the rotary working device (3) from the raised position while rotating the rotary in the lowered position, place the lever (1) in the stop (a) position.
Turn the descending designation switch (6) ONL, then O as it descends.
Even if you lower it to N, 0FFL, the transmission of the PTO shaft (4) will not be automatically engaged, so make sure that it does not touch the ridge at the appropriate lowering position, and then turn the trigger switch (7).
) to turn on the transmission of the PTO shaft (4),
The vehicle body (1) can be moved forward (a) by lowering it to an appropriate plowing depth.

後進(ハ)の場合には、停止(ロ)位置にレバー(1)
があるとき、上昇指定スイッチ(5)をNして上限位置
まで上昇する間に1回転した場合の作業装置(3)は連
動されて回転が止り、レバー(1)を後進(ハ)位置に
位置させて後進できる。
When moving in reverse (c), move the lever (1) to the stop (b) position.
When the lift designation switch (5) is turned to N and the working device (3) rotates once while rising to the upper limit position, the working device (3) is interlocked and stops rotating, and the lever (1) is moved to the reverse (c) position. You can position it and go backwards.

このようにして、実作業時の種々の作業操作を便利に行
なえると共に、PTO軸(4)から作業装置(3)へ伝
動している間の安全性を向上できる。
In this way, various work operations during actual work can be performed conveniently, and safety can be improved during power transmission from the PTO shaft (4) to the work device (3).

また、レバー(1)による変速操作と、作業装置(3)
の昇降操作と、PTO軸(4)から作業装置(3)への
伝動入切変更操作を、片手とその指とで操作できるから
、手動操作と云えども楽に操作できる。
In addition, the gear change operation using the lever (1) and the working device (3)
The lifting and lowering of the PTO shaft (4) and the transmission on/off switching operation from the PTO shaft (4) to the working device (3) can be performed with one hand and its fingers, so it can be operated easily even though it is a manual operation.

実施例 尚、面倒において、トラクタ車体(2)は、第1図、第
2図に示すように、操向操作自在の左右一対の前車輪(
8)および駆動する左右一対の後車輪(9)を有し、ボ
ンネット部(lO)には原動機(11)を内装し、その
後端部に操縦ハンドル(12)を有すると共に、後車輪
(9)のフェンダで囲われた操縦席(13)の右側に、
レバー(1)を前後方向(ニ)のリバース形態に設けて
配置している。また、操縦フロア(14)には、クラッ
チペタル(15)、アクセルペダル(1B)を有し、該
/\ンドル(12)部にス07トルレ/< −(17)
 ヲ’?1している。該レバー(1)は、ハンドル(1
2)FJに設けてもよい、操縦席(13)の左右には、
夫々ケ−ス(18)  (19)構成して各種の設定ボ
タン・スインチ類を配設しである。後輪伝動ケース(2
2)後面にPTO軸(4)を突出位置させである。
Embodiment It should be noted that, as shown in FIGS. 1 and 2, the tractor body (2) has a pair of left and right front wheels (
8) and a pair of left and right rear wheels (9) to be driven, a motor (11) is housed in the bonnet part (lO), a control handle (12) is provided at the rear end, and the rear wheels (9) On the right side of the cockpit (13) surrounded by a fender,
The lever (1) is provided in a reverse configuration in the front-rear direction (d). In addition, the control floor (14) has a clutch pedal (15) and an accelerator pedal (1B), and the steering wheel (12) has a clutch pedal (15) and an accelerator pedal (1B).
Wo'? 1. The lever (1) has a handle (1
2) On the left and right of the cockpit (13), which may be installed in the FJ,
The cases (18) and (19) are respectively provided with various setting buttons and switches. Rear wheel transmission case (2
2) The PTO shaft (4) is positioned protruding from the rear surface.

トラクタ車体(2)後部に装着する作業装置(3)は、
ロータリ耕耘装置(3)を例示し、アッパリンク(20
)と左右一対のロワーリンク(21)とで車体(2)に
連結され、該後車輪(9)の伝動ケース(22)上部に
設けられたリフトアーム(23)との間に昇降ロッド(
24)を連結し、油圧シリンダの伸縮を制御するソレノ
イドバルブ(25)で該リフトアーム(23)を軸(2
6)回りに上下回動制御して作業装置(3)を昇降させ
る一般的昇降構成である。リフトアーム(23)はその
回動角度を検出するリフトアームセンサ(27)が該軸
(2θ)部に設けである。該PTO軸(4)から軸伝動
系によって伝動構成される。
The working device (3) attached to the rear of the tractor body (2) is
The rotary tillage device (3) is illustrated, and the upper link (20
) is connected to the vehicle body (2) by a pair of left and right lower links (21), and a lifting rod (
The lift arm (23) is connected to the shaft (24) by a solenoid valve (25) that controls the expansion and contraction of the hydraulic cylinder.
6) This is a general elevating configuration in which the working device (3) is raised and lowered by vertical movement control. A lift arm sensor (27) for detecting the rotation angle of the lift arm (23) is provided at the shaft (2θ) portion. Transmission is provided by a shaft transmission system from the PTO shaft (4).

レバー(1)は、ff13図に示すように握り部側面に
作業装21 (3)の上昇指定スイッチ(5)と下降指
定スイッチ(6)とをボタンスイッチ形態にして設けで
ある。また、握り部前部にトリガスイッチ(7)を設け
である。また、回動軸(28)廻りに前後回動するレバ
ー基部(29)に、前側を前1ff(イ)位置とし、中
央を停止(ロ)位置、後側を後進(ハ)位置として夫々
の位置でレバー(1)によってスイッチONするスイッ
チ(30)  (31)  (32)を配置してあり、
第5図に示すように、スイッチ(30)  (31) 
 (32)の有感帯(ホ)と不感帯(ニ)とが交互に配
置しである。また、レバー(1)はハンドル(12)部
に設けてもよい。
As shown in Figure ff13, the lever (1) is provided with a raise designation switch (5) and a descent designation switch (6) of the work equipment 21 (3) in the form of button switches on the side surface of the grip. Additionally, a trigger switch (7) is provided at the front of the grip. In addition, the lever base (29), which rotates back and forth around the rotation axis (28), has the front side set at the front 1ff (A) position, the center at the stop (B) position, and the rear side set at the reverse (C) position. There are switches (30), (31), and (32) that are turned on by the lever (1) at the position.
As shown in Figure 5, the switch (30) (31)
In (32), the sensitive zone (E) and the dead zone (D) are arranged alternately. Further, the lever (1) may be provided on the handle (12).

該各レバー位置のスイッチ(3)(4)(5)は変速伝
動機構における原動a(11)に近い主クラッチ(33
)と、次段の前後進クラッチ(34)との油圧クラッチ
を入切させるセンサとして作用するものである。
The switches (3), (4), and (5) at each lever position are connected to the main clutch (33) close to the driving force a (11) in the transmission mechanism.
) and the next-stage forward/reverse clutch (34).

第6図の伝!!13機構図について説明する。変速機構
は、該原!1la(11)側の動力取出軸(35)から
主クラッチ(33)を介してその伝動軸(35)に伝動
構成され、この伝動軸(35)と平行−させた他の伝動
軸(36)との間を適宜の変速比で伝動構成すると共に
、カウンタギヤ(37)を介して適宜の変速比でPTO
パワクラッチ(38)を有した該PTO軸(4)へ伝動
構成される。該伝動軸(3B)から、これと平行する伝
動軸(39)へ適宜の変速比で伝動構成される。該伝動
軸(35)とこの伝動軸(39)とは、該前後進クラッ
チ(34)を介して伝動軸(39)を正逆伝動入切構成
される。また、伝動軸(39)からこれと平行させた別
の伝動軸(40)との間を適宜の変速比で選択的に伝動
構成される1以上構成の主変速装ff1(41)に対し
、副変速装器(42)の該後車輪(9)へ伝動するデフ
機構へ伝動するベベルギヤ(43)を崩した伝動軸(4
4)へ、変速油圧クラッチ(45)を介して直接、又は
伝動軸(40)から伝動軸(46) 、乃至は(47)
を介して、適宜の変速比で選択的に伝動構成されている
。伝動軸(40)には変速油圧クラッチ(48’)  
(49)を、また伝動軸(47)にも変速油圧クラ−、
チ(50)を設けである。この構成において、PTO軸
(42)の伝動系(へ)を主変速装置(41)、副変速
装置(42)から独立させて設けている。
The story of Figure 6! ! 13 Mechanism diagram will be explained. The transmission mechanism is the same! Transmission is configured from the power take-off shaft (35) on the 1la (11) side to the transmission shaft (35) via the main clutch (33), and another transmission shaft (36) parallel to this transmission shaft (35). The PTO is transmitted at an appropriate gear ratio via the counter gear (37)
Transmission is configured to the PTO shaft (4) having a power clutch (38). Transmission is configured from the transmission shaft (3B) to a transmission shaft (39) parallel to this at an appropriate speed ratio. The transmission shaft (35) and the transmission shaft (39) are configured to perform forward/reverse transmission on/off via the forward/reverse clutch (34). Further, for the main transmission ff1 (41) having one or more configurations in which transmission is selectively performed between the transmission shaft (39) and another transmission shaft (40) parallel to the transmission shaft (40) at an appropriate gear ratio, A transmission shaft (4) with a broken bevel gear (43) that transmits power to the differential mechanism that transmits power to the rear wheels (9) of the auxiliary transmission (42).
4) directly via the variable speed hydraulic clutch (45) or from the transmission shaft (40) to the transmission shaft (46) or (47).
The transmission is selectively configured at an appropriate gear ratio via the transmission gear. A variable speed hydraulic clutch (48') is attached to the transmission shaft (40).
(49), and also a transmission hydraulic crank (47).
(50) is provided. In this configuration, the transmission system for the PTO shaft (42) is provided independently from the main transmission (41) and the auxiliary transmission (42).

作業装置(3)の昇降に連動してPTO軸(4)の伝動
を入切制御するのはPTOパワクラッチ(38)の制御
ソレノイドバルブ(58)に制御出力する構成である。
The control output is provided to the control solenoid valve (58) of the PTO power clutch (38) to control the transmission of the PTO shaft (4) on and off in conjunction with the lifting and lowering of the working device (3).

第3図に示す操縦席(13)右の該ケース(18)に設
けた(51)は該リフトアーム(23)昇降のポジショ
ンレバ、(52)は耕深設定器、  (53)は作業装
置(3)の上昇限度を設定する上限設定器、である、ま
た左側のケース(19)に設けた(54)は走行速度の
シフト設定器、(55)は主クラッチ入り速度設定ポリ
ウム、(58)はPTO元スイッチ、(57)はPTO
人速変調節ボリウムである。
As shown in Fig. 3, (51) is a position lever for raising and lowering the lift arm (23), (52) is a plowing depth setting device, and (53) is a working device, which is installed on the case (18) to the right of the cockpit (13) shown in Fig. 3. (3) is the upper limit setting device for setting the increase limit of the speed increase, (54) provided on the left case (19) is the shift setting device for the travel speed, (55) is the main clutch engaged speed setting polyurethane, (58 ) is the PTO source switch, (57) is the PTO
This is a speed change adjustment volume.

第7図の制御ブロック図における(58)は制御cpu
、(5s)は制御ソレノイドバルブ、(80)はクラッ
チ板のシフト位置検出センサである。
(58) in the control block diagram of FIG. 7 is the control CPU
, (5s) is a control solenoid valve, and (80) is a clutch plate shift position detection sensor.

第7図の制御ブロック図を主体として作用を説明する。The operation will be explained based on the control block diagram shown in FIG. 7.

トラクタ車体(2)によるロータリ耕耘装置(3)の耕
耘作業を行なう場合に、前もって設定しておくものは、
主クラツチ入速度設定器(55)で、変速レバー(1)
が、前進(イ)位置、又は後進(ハ)位置に位置して、
スイッチ(30)又は(32)がONしてから実際に主
クラッチ(33)が入りとなるまでの半クラツチ状態の
時間を設定するもので、第5図における不怒帯にレバー
(1)が位置するときにも半クラッチが利用できるもの
である。
When performing tillage work using the rotary tillage device (3) using the tractor body (2), the following settings must be made in advance:
With the main clutch engagement speed setting device (55), shift lever (1)
is located in the forward (A) position or the reverse (C) position,
This is to set the time for the half-clutch state from when the switch (30) or (32) is turned on until the main clutch (33) is actually engaged. A half-clutch can also be used when the vehicle is in position.

次に、PTO入速度調節ポリウム(57)は、これもP
TOパワクラッチ(38)の摩擦板が完全にクラッチ入
り状態に接触するまでの時間を設定しておくもので円滑
なりラッチ入りをはかる電気的制御による場合のもので
ある。
Next, the PTO input rate adjusting poly(57) is also PTO.
The time required for the friction plate of the TO power clutch (38) to completely contact the clutch-engaged state is set, and the clutch is electrically controlled to smoothly engage the clutch.

次に、PTO元スイッチ(56)は、PTOパワクラッ
チ(38)のソレノイドやセンサ側の電源をONしてお
くものである。
Next, the PTO source switch (56) turns on the power to the solenoid and sensor side of the PTO power clutch (38).

走行速度の設定は、最初においても、作業途中にも行な
うが、変速し八−(1)操作前に、シフト設定器(50
の8種のボタンスイッチを選択的にONしておく、これ
は、変速伝動機構における変速油圧クラッチ(48) 
 (49)  (50)  (45)を選択的に指定す
るものである0以上を設定しておいてのち、レバー(1
)部の前進(イ)位置スイッチ(30) 、停止(ロ)
(中立)位こスイッチ(31)、後進(ハ)位置スイッ
チ(32) 、および作業装置(3)の上昇指定スイッ
チ(5)、下降指定スイッチ(6)、)リガスイッチ(
7)を操作した耕耘作業が行なえるもので、本発明にお
ける作業装置(3)の昇降でPTO軸からの伝動人切す
なわちPTOパワクラッチ(38)の入切連動は、車体
(2)の前進(イ)位置スイッチ(30)がONで前進
のときには各指定スイー、チ(5)(6)の−発ON操
作によって、上限設定位置まで連続的上昇する途中では
PTOパワクラッチ(38)がF)Jれ、また下降では
目的位置まで一挙に下降する適宜の地上高においてはP
TOパワクラッチ(38)入りとなるものである。また
、停止(ロ)位置スイッチ(31)がONのとき、及び
後進(ハ)位置スイッチ(32)がONのときには、上
A指定スイッチ(5)がONのときにのみPTOパ゛ワ
クラッチ(38)を「切り」の連動を行なう、また、後
′a(ハ)の場合には下降指定スイッチ(6)の作用を
させない無効制御をして安全がはかれる。停止(ロ)時
の下降は、下降指定スイッチ(6)のONによって下降
できスイッチ(6)OFFで下降を停止できる。この場
合ロータリを回転させるときにはトリガスイッチ(7)
でPTOパワクラッチ(38)をr入り」操作して回転
できる。トリガスイッチ(7)は、PTOパワクラッチ
(38)の「入り」のときに切る作用と、「切り」状態
のとき入れる反転作用ができる。従って、耕耘進行中、
車体(2)の進行を停止させたとき、ロータリを停止さ
せる場合にもトリガスイー、チ(7)でロータリを止め
ることができる。
The traveling speed can be set both at the beginning and during work, but before changing gears and operating 8-(1), set the shift setting device (50
8 types of button switches are selectively turned on. This is the shift hydraulic clutch (48) in the shift transmission mechanism.
(49) (50) After setting 0 or more to selectively specify (45), use the lever (1
) forward (a) position switch (30), stop (b)
(neutral) position switch (31), reverse (c) position switch (32), and lifting designation switch (5), descent designation switch (6), and trigger switch (
7) can be used for plowing work, and in the present invention, when the working device (3) is raised and lowered, the power transmission from the PTO shaft, that is, the on/off interlocking of the PTO power clutch (38), is used to move the vehicle body (2) forward. (A) When the position switch (30) is ON and the vehicle is moving forward, the PTO power clutch (38) is turned to the ) J, and when descending, P at the appropriate ground clearance to descend all at once to the destination position.
It is equipped with a TO power clutch (38). In addition, when the stop (B) position switch (31) is ON and the reverse (C) position switch (32) is ON, the PTO power clutch (38) is only activated when the upper A designation switch (5) is ON. ), and in the case of 'a' (c), the lowering designation switch (6) is disabled by disabling the operation, thereby ensuring safety. When stopping (b), the lowering can be performed by turning on the lowering designation switch (6), and can be stopped by turning off the switch (6). In this case, when rotating the rotary, use the trigger switch (7)
It can be rotated by operating the PTO power clutch (38) in the R position. The trigger switch (7) has the function of turning it off when the PTO power clutch (38) is in the "on" state, and the reversing action of turning it on when the PTO power clutch (38) is in the "off" state. Therefore, while plowing is in progress,
Even when the rotary is stopped when the vehicle body (2) is stopped moving, the rotary can be stopped using the triggers E and E (7).

上昇指定スイッチ(5)、及び下降指定スイッチ(6)
の入力は(cpu)によって、該リフトアーム(23)
を昇降回動させる油圧シリンダの制御ソレノイドバルブ
(25)に出力し、リフトアームセンサ(27)の検出
値を(c p u)に入力しこれでり7トアーム(23
)の回動角度を検知しながら所定の位置まで上昇又は下
降させる。また、前進(イ)位置スイッチ(30)のO
Nと、後a(ハ)位置スイッチ(32)ONの場合の各
クラッチ(33)  (34)のr入り」制御は、夫々
の制御ソレノイドバルブ(59)に出力し、シフト位置
検出センサ(80)のクラッチ摩擦板の移動位置を検知
しながら主りラッチ人速度設定器(55)で設定した時
間が経過したときに完全r入り」状態とする円滑「入り
」制御を行なうもので、該設定器(55)の設定時間は
、前後進クラッチ(30が優先して入りとなってのち主
クラッチ(33)が完全「入り」となるまでの時間を設
定する。
Ascent designation switch (5) and descent designation switch (6)
The input of (CPU) is by the lift arm (23)
is output to the control solenoid valve (25) of the hydraulic cylinder that moves up and down, and the detected value of the lift arm sensor (27) is input to (c p u).
) is raised or lowered to a predetermined position while detecting the rotation angle. Also, O of the forward (a) position switch (30)
N, and when the rear a (c) position switch (32) is ON, each clutch (33) (34) is turned on' control is output to each control solenoid valve (59), and the shift position detection sensor (80 ) while detecting the moving position of the clutch friction plate of the main latch manual speed setting device (55). The setting time of the device (55) is the time from when the forward/reverse clutch (30) is preferentially engaged until the main clutch (33) is fully engaged.

実施例のように車体(2)の後進(ハ)のとき、作業装
置(3)の下降指定スイッチ(6)の作動を無効とする
とより安全がはかれる。
As in the embodiment, when the vehicle body (2) is moving backward (c), the operation of the lowering designation switch (6) of the working device (3) is disabled to ensure greater safety.

【図面の簡単な説明】[Brief explanation of the drawing]

図は、この発明の一実施例を示すもので、第1図は側面
図、第2図は一部を省略せるその平面図、第3図はその
一部の斜視図、第4図は一部の平面図、第5図は作用図
、第6図は伝動機構図、第7図は制御ブロック図である
。 図中、符号(1)はレバー、(2)は車体、(3)は作
業装置、(4)はPTO軸、(5)は上昇指定スイッチ
、(6)は下降指定スイッチ、(7)はトリガスイッチ
、(58)は制御Cpuを示す。
The drawings show an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a partially omitted plan view, Fig. 3 is a partial perspective view, and Fig. 4 is a partial view. FIG. 5 is a diagram of the operation, FIG. 6 is a diagram of the transmission mechanism, and FIG. 7 is a control block diagram. In the figure, (1) is the lever, (2) is the vehicle body, (3) is the work device, (4) is the PTO axis, (5) is the ascent designation switch, (6) is the descent designation switch, and (7) is the A trigger switch (58) indicates a control CPU.

Claims (1)

【特許請求の範囲】[Claims]  レバー(1)を、直列させた前進(イ)、停止(ロ)
、後進(ハ)、の各位置間に移動させて車体(2)を変
速する変速装置と、該車体(2)に連結した作業装置(
3)をこの車体(2)に対して上昇下降させることに連
動してPTO軸(4)から該作業装置(3)への伝動を
切入させる連動装置とを有したトラクタにおいて、該レ
バー(1)に、作業装置(3)の上昇指定スイッチ(5
)と、下降指定スイッチ(6)と、該PTO軸(4)の
伝動を入切変更できるトリガスイッチ(7)とを設け、
該車体(2)の停止(ロ)と後進(ハ)との場合には、
作業装置(3)上昇のときに限定して連動させて該PT
O軸(4)から作業装置(3)への伝動を切るよう限定
連動構成したこと特徴とするトラクタ。
Forward (a) and stop (b) with levers (1) in series
, reverse (c), and a working device (2) connected to the vehicle body (2).
The tractor has an interlocking device that cuts off power transmission from the PTO shaft (4) to the working device (3) in conjunction with raising and lowering the lever (1) with respect to the vehicle body (2). ), the lift designation switch (5) of the work equipment (3) is
), a lowering designation switch (6), and a trigger switch (7) that can turn on and off the transmission of the PTO shaft (4),
When the vehicle body (2) stops (b) and moves backward (c),
The PT is linked only when the working device (3) is raised.
A tractor characterized by a limited interlocking configuration so as to cut off power transmission from the O-axis (4) to the working device (3).
JP8189588A 1988-04-01 1988-04-01 Tractor Pending JPH01256303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8189588A JPH01256303A (en) 1988-04-01 1988-04-01 Tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8189588A JPH01256303A (en) 1988-04-01 1988-04-01 Tractor

Publications (1)

Publication Number Publication Date
JPH01256303A true JPH01256303A (en) 1989-10-12

Family

ID=13759176

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8189588A Pending JPH01256303A (en) 1988-04-01 1988-04-01 Tractor

Country Status (1)

Country Link
JP (1) JPH01256303A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06209603A (en) * 1993-01-13 1994-08-02 Kubota Corp Lift-controlling apparatus for working machine
WO1997009870A1 (en) * 1995-09-11 1997-03-20 Yanmar Agricultural Equipment Co., Ltd. Operating device for a working vehicle
JP2006304805A (en) * 2006-06-30 2006-11-09 Iseki & Co Ltd Operating unit for farm working machine
WO2014098028A1 (en) * 2012-12-17 2014-06-26 ヤンマー株式会社 Working vehicle
JP2014118036A (en) * 2012-12-17 2014-06-30 Yanmar Co Ltd Working vehicle
JP2016015936A (en) * 2014-07-09 2016-02-01 ヤンマー株式会社 Working vehicle and method for controlling lifting device of the same
CN105325085A (en) * 2015-12-02 2016-02-17 吴勇智 Method and device for improving mechanical control lifting of header of harvesting machine into electric control lifting

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06209603A (en) * 1993-01-13 1994-08-02 Kubota Corp Lift-controlling apparatus for working machine
WO1997009870A1 (en) * 1995-09-11 1997-03-20 Yanmar Agricultural Equipment Co., Ltd. Operating device for a working vehicle
US5992260A (en) * 1995-09-11 1999-11-30 Yanmar Agricultural Equipment Co., Ltd. Operating device for a working vehicle
JP2006304805A (en) * 2006-06-30 2006-11-09 Iseki & Co Ltd Operating unit for farm working machine
JP4569530B2 (en) * 2006-06-30 2010-10-27 井関農機株式会社 Rice transplanter
WO2014098028A1 (en) * 2012-12-17 2014-06-26 ヤンマー株式会社 Working vehicle
JP2014118036A (en) * 2012-12-17 2014-06-30 Yanmar Co Ltd Working vehicle
US9894827B2 (en) 2012-12-17 2018-02-20 Yanmar Co., Ltd. Working vehicle
JP2016015936A (en) * 2014-07-09 2016-02-01 ヤンマー株式会社 Working vehicle and method for controlling lifting device of the same
CN105325085A (en) * 2015-12-02 2016-02-17 吴勇智 Method and device for improving mechanical control lifting of header of harvesting machine into electric control lifting

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