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JPH0549491B2 - - Google Patents
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JPH0549491B2 - - Google Patents

Info

Publication number
JPH0549491B2
JPH0549491B2 JP62304319A JP30431987A JPH0549491B2 JP H0549491 B2 JPH0549491 B2 JP H0549491B2 JP 62304319 A JP62304319 A JP 62304319A JP 30431987 A JP30431987 A JP 30431987A JP H0549491 B2 JPH0549491 B2 JP H0549491B2
Authority
JP
Japan
Prior art keywords
clutch
lever
clutch lever
operating
disengaged
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
Application number
JP62304319A
Other languages
Japanese (ja)
Other versions
JPH01145231A (en
Inventor
Nobumasa Kawashima
Mitsuaki Sawai
Toshihiko Okada
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP62304319A priority Critical patent/JPH01145231A/en
Priority to DE3840218A priority patent/DE3840218A1/en
Priority to GB8827830A priority patent/GB2212889B/en
Priority to FR888815713A priority patent/FR2623765B1/fr
Priority to KR1019880015893A priority patent/KR930000802B1/en
Publication of JPH01145231A publication Critical patent/JPH01145231A/en
Publication of JPH0549491B2 publication Critical patent/JPH0549491B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K23/00Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D51/00Motor vehicles characterised by the driver not being seated
    • B62D51/001Motor vehicles characterised by the driver not being seated characterised by the vehicle control device

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Mechanical Control Devices (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、歩行型耕耘機等の歩行型農作業車に
係り、詳しくは、通常のクラツチ操作を行う第1
クラツチレバーの他に、緊急操作用の第2クラツ
チレバーを設ける技術に関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a walking agricultural vehicle such as a walking power tiller, and more specifically, the present invention relates to a walking agricultural vehicle such as a walking cultivator.
The present invention relates to a technique for providing a second clutch lever for emergency operation in addition to the clutch lever.

〔従来の技術〕[Conventional technology]

上記歩行型農作業車では、従来、実開昭56−
25624号公報に示されたもののように、操縦ハン
ドルを握つたままでクラツチレバーの切り操作が
できるように、別にクラツチ切り専用の切りレバ
ーを設けたものが知られている。
Conventionally, the above-mentioned walking-type agricultural vehicles are
As shown in Japanese Patent Publication No. 25624, there is a known clutch lever that is provided with a separate lever exclusively for clutch disengagement so that the clutch lever can be operated while holding the control handle.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

ところが、ハンドルの握り部を握つたままクラ
ツチ切り操作した方が便利な場合(旋回走行時や
圃場の起伏が激しくしつかりとハンドル操作する
必要のあるとき等)では、再びクラツチ入りにす
る場合でもハンドルを握つたままの方が良いか
ら、上述の公報のものでは不便がある。
However, in cases where it is more convenient to engage the clutch while holding the grip of the handle (such as when turning or when the field has severe ups and downs and it is necessary to firmly operate the handle), even if you want to engage the clutch again. Since it is better to keep your hands on the handle, the above-mentioned publication is inconvenient.

そこで、実願昭61−194371号、実開昭63−
99928号で示されたもののように、通常に操作さ
れるクラツチレバーとは別に、ハンドルを握つた
ままでクラツチの入り及び切りの両操作が行える
ようにして、上記不便を解消せんとしたものがあ
る。
Therefore, Utility Application No. 194371 (1983), Utility Application No.
As shown in No. 99928, there is a device that solves the above-mentioned inconvenience by making it possible to engage and disengage the clutch while holding the handle, in addition to the normally operated clutch lever. be.

しかしながら、この技術ではクラツチ入り専用
のオンレバーと、切り専用のオフレバーとの2本
のレバーを備えるものであるから、使い分けを考
慮する煩わしさがあるとともに、オフレバーを操
作するつもりがオンレバーを操作してしまうとい
つた誤操作のおそれもあり、さらなる改善の余地
が残されているものであつた。
However, since this technology has two levers, an on lever for engaging the clutch and an off lever for disengaging, it is a hassle to consider which lever to use, and when the intention is to operate the off lever, the on lever is not operated. There was a risk of erroneous operation if the system was closed, and there was still room for further improvement.

本発明の目的は、ハンドルを握つたままで走行
用クラツチの入り及び切りの操作が誤操作なく簡
単に行えるものとして提供する点にある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a drive clutch that can be easily engaged and disengaged without any erroneous operation while holding the handlebar.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的を達成するために本発明は、走行用ク
ラツチを操作する第1クラツチレバーを操縦ハン
ドルに前後揺動自在に取付け、第1クラツチレバ
ーのクラツチ入り位置への揺動操作に伴つて第1
クラツチレバーをクラツチ入り位置に付勢する第
1作用状態と、第1クラツチレバーのクラツチ切
り位置への揺動操作に伴なつて第1クラツチレバ
ーをクラツチ切り位置に付勢する第2作用状態と
に切換わる付勢機構を備えた歩行型農作業車のク
ラツチ操作構造において、 第1クラツチレバーの第1揺動軸芯とは別の
第3揺動軸芯を有した第2クラツチレバーを操
縦ハンドルに取付け、 第2クラツチレバーに、第3揺動軸芯からの
位置が一定の固定接触体を取付けるとともに、
第1クラツチレバーに、固定接触体との接触状
態を維持しながら第1揺動軸芯との距離変化を
許容する摺接接触体を設けることにより、第2
クラツチレバーの往復揺動操作によつて第1ク
ラツチレバーをクラツチ入り及び切り位置に操
作自在に構成し、 第1クラツチレバーがクラツチ入り位置に存
在する第2クラツチレバーのクラツチ入り位置
と、第1クラツチレバーがクラツチ切り位置に
存在する第2クラツチレバーのクラツチ切り位
置との両状態において第2クラツチレバーの操
作部が操縦ハンドルの握り部の近く位置するよ
うに、第2クラツチレバーの形状と第3軸芯の
位置とを設定してあることを特徴とする。
In order to achieve the above object, the present invention has a first clutch lever for operating a traveling clutch that is attached to a steering handle so as to be swingable back and forth, and that when the first clutch lever is swung to the clutch engaged position, the first clutch lever is moved forward and backward.
a first operating state in which the clutch lever is biased to the clutch engaged position; and a second operating state in which the first clutch lever is biased to the clutch disengaged position in response to a rocking operation of the first clutch lever to the clutch disengaged position. In a clutch operation structure for a walk-behind agricultural vehicle equipped with a biasing mechanism that switches to A fixed contact body whose position from the third swing axis is fixed is attached to the second clutch lever, and
By providing the first clutch lever with a sliding contact body that allows the distance from the first swing axis to change while maintaining the contact state with the fixed contact body, the second clutch lever
The first clutch lever is configured to be freely operable between the clutch engaged and disengaged positions by reciprocating rocking operation of the clutch lever, and the first clutch lever is in the clutch engaged position of the second clutch lever, and the first clutch lever is in the clutch engaged position. The shape of the second clutch lever and the second clutch lever are designed so that the operating part of the second clutch lever is located near the grip part of the operating handle in both the clutch disengaged position and the clutch disengaged position of the second clutch lever. It is characterized in that the positions of three axes are set.

〔作用〕[Effect]

つまり、特徴構成によつて第2クラツチレバ
ーの往復操作によつて第1クラツチレバーによる
クラツチの入り及び切りの両操作が行えるから、
従来の2本レバーではなく、単一の別レバー操作
で走行用クラツチの入り切りが行えるようにな
る。
In other words, due to the characteristic configuration, both the engagement and disengagement operations of the first clutch lever can be performed by reciprocating the second clutch lever.
Instead of the conventional two levers, the driving clutch can now be engaged and disengaged by operating a single separate lever.

そして、特徴構成により、単一の第2クラツ
チレバーをハンドルを握つたままでの手指操作
が、すなわち短い移動ストロークでの操作が可能
となり、旋回とか傾斜走行といつた操縦ハンドル
から手を放し難い状況において迅速・容易に走行
用クラツチの入り切り操作が行える。
And, due to the characteristic configuration, it is possible to operate the single second clutch lever with your fingers while holding the handle, that is, with a short movement stroke, making it difficult to take your hand off the control handle when turning or driving on an incline. The running clutch can be quickly and easily engaged or disengaged in any situation.

又、第2クラツチレバーは第1クラツチレバー
と共に揺動移動するから、ハンドルを握つたまま
で、かつ、緊急にクラツチ操作する場合には、第
2クラツチレバーをその時点での操作位置とは反
対の位置に操作するだけで良く、誤操作おそれが
殆どないものとなる。
Also, since the second clutch lever swings and moves together with the first clutch lever, if you need to operate the clutch in an emergency while still holding the handle, move the second clutch lever in the opposite position from the operating position at that time. It is only necessary to operate it to the position shown in FIG.

〔発明の効果〕〔Effect of the invention〕

従つて、単一の第2クラツチレバーを第1クラ
ツチレバーと一体的に揺動させること、及び、第
2クラツチレバーの操作位置を常にハンドル支持
状態で操作し得る状態とする工夫により、ハンド
ル握り状態で操作する緊急用のクラツチレバー
を、誤操作おそれなく、かつ、迅速・容易に操作
できる優れたものとして提供できた。
Therefore, by making the single second clutch lever swing integrally with the first clutch lever, and by making the operating position of the second clutch lever so that it can always be operated while supporting the handle, the handle grip can be adjusted. To provide an excellent emergency clutch lever that can be operated quickly and easily without fear of erroneous operation.

〔実施例〕〔Example〕

次に実施例を示す。 Next, examples will be shown.

第4図に示すように、車輪1及びエンジンE等
が備えられた自走機体の後部に左右一対の操縦ハ
ンドル2,2を取付けると共に、ロータリ耕耘装
置等の各種作業装置を連結するためのヒツチ3を
付設して、歩行型の農用トラクターを構成してあ
る。
As shown in Fig. 4, a pair of left and right control handles 2, 2 are attached to the rear of the self-propelled aircraft, which is equipped with wheels 1, an engine E, etc., and a hitch for connecting various work devices such as a rotary tiller. 3 is attached to form a walking type agricultural tractor.

第4図に示すように、エンジンEの出力ベルト
プーリ4と、作業装置用及び走行用のミツシヨン
(図示せず)の入力ベルトプーリ5とにわたつて
伝動ベルト6を巻回すると共に、テンシヨン輪体
7を揺動支持アーム8により揺動操作されて伝動
ベルト6を緊張操作したり、この緊張操作を解除
するように構成して、テンシヨン輪体7の揺動に
より入り状態と切り状態とに切換わるように、か
つ、テンシヨン輪体7を緊張解除位置に付勢する
ように揺動支持アーム8に作用させてあるつる巻
きスプリング9によつて切り状態に付勢されるよ
うに主クラツチCを構成してある。そして、その
操作構造は第1図及び第2図に示すように構成し
てある。
As shown in FIG. 4, a power transmission belt 6 is wound around the output belt pulley 4 of the engine E and the input belt pulley 5 of a transmission (not shown) for working equipment and traveling. The body 7 is configured to be swung by a swiveling support arm 8 to tension the transmission belt 6 and release the tensioning operation, and the tension wheel 7 is swung between the engaged state and the disengaged state. The main clutch C is biased to the disengaged state by a helical spring 9 acting on the swing support arm 8 to bias the tension wheel 7 to the tension release position. has been configured. The operating structure is constructed as shown in FIGS. 1 and 2.

すなわち、第4図に示す如く揺動支持アーム8
にコイルスプリング10、レリーズワイヤ11及
び円弧型リンク12を介して連動させた第1クラ
ツチレバー13を、右側操縦ハンドル2の内側に
配置すると共にレバー枢支軸14及びレバー取付
部材15を介して右側操縦ハンドル2に取付けて
ある。そして、第1クラツチレバー13がレバー
枢支軸14の第1軸芯P1の周りで前後に揺動操
作され、レバーガイド16のガイド溝16aの先
端側にてレバー杆身がレバーガイド16に接当し
たクラツチ入り位置ON1に操作されると、テン
シヨン輪体7が伝動ベルト6を緊張操作する状態
になり、ガイド溝16aの後端側にてレバー杆身
がレバーガイド16に接したクラツチ切り位置
OFF1に操作されると、テンシヨン輪体7が伝動
ベルト6の緊張操作を解除する状態になるように
してある。
That is, as shown in FIG.
A first clutch lever 13, which is interlocked via a coil spring 10, a release wire 11, and an arcuate link 12, is disposed inside the right steering handle 2, and is attached to the right side via a lever pivot shaft 14 and a lever mounting member 15. It is attached to the control handle 2. Then, the first clutch lever 13 is operated to swing back and forth around the first axis P1 of the lever pivot shaft 14, and the lever rod is attached to the lever guide 16 at the tip side of the guide groove 16a of the lever guide 16. When the clutch is in contact with the clutch engaged position ON 1 , the tension wheel 7 becomes in a state where it tensions the transmission belt 6, and the lever rod is in contact with the lever guide 16 at the rear end side of the guide groove 16a. Cutting position
When operated to OFF 1 , the tension wheel 7 is configured to release the tensioning operation of the transmission belt 6.

前記スプリング9及び10と円弧型リンク12
とにより第1クラツチレバー13をクラツチ入り
位置ON1やクラツチ切り位置OFF1に付勢する機
構Aを構成して、主クラツチCを入り状態と切り
状態に維持することを可能にしてある。すなわ
ち、レリーズワイヤ11のクラツチレバー側にお
けるアウタワイヤ端部固定箇所及び第1軸芯P1
を通る直線上がデツトポイントDPになり、第1
クラツチレバー13と円弧型リンク12の第2軸
芯P2がデツトポイントDPより上方に位置すると、
円弧型リンク12が第1クラツチレバー13によ
り後方に移動操作されてコイルスプリング10を
引張り操作することにより、コイルスプリング1
0の付勢力がつる巻きスプリング9の付勢力より
大になつてテンシヨン輪体7を緊張操作状態に付
勢し、かつ、第1クラツチレバー13をクラツチ
入り位置ON1に付勢するよう第1作用状態に付
勢機構Aがなるのである。第2軸芯P2がデツト
ポイントDPより下方に位置すると、円弧型リン
ク12が第1クラツチレバー13により前方に移
動操作されてコイルスプリング10を弛緩操作す
ることにより、つる巻きスプリング9の付勢力が
コイルスプリング10の付勢力より大になつてテ
ンシヨン輪体7を緊張解除状態に付勢し、かつ、
第1クラツチレバー13をクラツチ切り位置
OFF1に付勢するよう第2作用状態に付勢機構A
がなるのである。そして、第1クラツチレバー1
3が操作されるに伴い、第2軸芯P2がデツトポ
イントDPの上方と下方の一方から他方に移動し、
付勢機構Aが前記第1作用状態と第2作用状態の
一方から他方に切換わるのである。
The springs 9 and 10 and the arcuate link 12
This constitutes a mechanism A that biases the first clutch lever 13 to the clutch engaged position ON 1 or the clutch disengaged position OFF 1 , thereby making it possible to maintain the main clutch C in the engaged state and the disengaged state. That is, the outer wire end fixing location on the clutch lever side of the release wire 11 and the first axis P 1
The straight line passing through becomes the dead point DP, and the first
When the second axis P2 of the clutch lever 13 and the arcuate link 12 is located above the dead point DP,
The arc-shaped link 12 is moved backward by the first clutch lever 13 and the coil spring 10 is pulled, so that the coil spring 1
The biasing force of the helical spring 9 becomes larger than the biasing force of the helical spring 9, thereby biasing the tension wheel 7 into a tensioned state and biasing the first clutch lever 13 to the clutch engaged position ON1 . The biasing mechanism A is now in the active state. When the second axis P 2 is located below the dead point DP, the arcuate link 12 is moved forward by the first clutch lever 13 and the coil spring 10 is relaxed, thereby tightening the helical spring 9. The force becomes larger than the biasing force of the coil spring 10 and biases the tension wheel 7 into a tension-released state, and
Move the first clutch lever 13 to the clutch release position
Biasing mechanism A to the second operating state to bias OFF 1
becomes. and the first clutch lever 1
3 is operated, the second axis P2 moves from one side above and below the dead point DP to the other,
The biasing mechanism A is switched from one of the first operating state and the second operating state to the other.

第1クラツチレバー13を揺動操作して付勢機
構Aを前記第1作用状態と第2作用状態の一方か
ら他方に切換え操作するための第2クラツチレバ
ー17を右側操縦ハンドル2の内側に配置すると
共にレバー枢支軸18及びレバー取付部材15を
介して右側操縦ハンドル2に取付けて、操縦ハン
ドル2を握つたままでも第2クラツチレバー17
により第1クラツチレバー13の操作ができて主
クラツチCの入り切り操作ができるように構成し
てある。
A second clutch lever 17 is disposed inside the right steering handle 2 for swinging the first clutch lever 13 to switch the biasing mechanism A from one of the first operating state and the second operating state to the other. At the same time, the second clutch lever 17 can be attached to the right steering handle 2 via the lever pivot shaft 18 and the lever mounting member 15, so that the second clutch lever 17 can be attached to the right steering handle 2 through the lever pivot shaft 18 and the lever mounting member 15.
This allows the first clutch lever 13 to be operated and the main clutch C to be engaged and closed.

すなわち、第2クラツチレバー17は第1軸芯
P1より操縦ハンドル握り部側に位置するレバー
枢支軸18の第3軸芯P3の周りで上下に揺動す
るように構成してある。そして、第2クラツチレ
バー17の前端側に、側面視にて第1軸芯P1
り操縦ハンドル握り部側に位置し、かつ、第3軸
芯P3より操縦ハンドル基端側に位置する箇所に
配置した固定接触体としてのローラ型作用部19
を備えてあると共に、このローラ型作用部19
は、第1クラツチレバー13に屈曲丸棒によつて
形成してある摺接接触体である第1被操作アーム
部13aと摺接接触体である第2被操作アーム部
13bの夫々に接当作用するようにそれらの間に
入り込ませてある。第2クラツチレバー17の後
端側に操作部17aを備えてあると共に、前記ロ
ーラ型作用部19の被操作アーム部13aと13
bの間への入り込みによる第1クラツチレバー1
3と第2クラツチレバー17との係合のために、
第1クラツチレバー13がクラツチ入り位置
ON1にある状態では、操作部17aが右側操縦
ハンドル2を握る手の指先で押上げ操作できるよ
うにその操縦ハンドル2の握り部2aの横下側近
くに位置したクラツチ入り位置ON2にあり、第
1クラツチレバー13がクラツチ切り位置OFF1
にある状態では、操作部17aが右側操縦ハンド
ル2を握る手の指先で押下げ操作できるように握
り部2aの横上側近くに位置したクラツチ切り位
置OFF2にあるようにしてある。
That is, the second clutch lever 17 is aligned with the first axis.
It is configured to swing up and down around the third axis P3 of the lever pivot shaft 18, which is located closer to the control handle grip than P1 . Then, on the front end side of the second clutch lever 17, there is a part located closer to the steering handle grip than the first axis P 1 and closer to the base end of the operation handle than the third axis P 3 when viewed from the side. A roller-type acting part 19 as a fixed contact body arranged in
This roller type acting part 19
is in contact with a first operated arm portion 13a, which is a sliding contact body, and a second operated arm portion 13b, which is a sliding contact body, which are formed on the first clutch lever 13 by a bent round bar. It is inserted between them so that it can function. An operating section 17a is provided on the rear end side of the second clutch lever 17, and operated arm sections 13a and 13 of the roller type operating section 19 are provided.
The first clutch lever 1 by entering between b.
3 and the second clutch lever 17,
The first clutch lever 13 is in the clutch engaged position
In the ON 1 state, the operating part 17a is in the clutch engaged position ON 2, which is located near the lower side of the grip part 2a of the right steering handle 2 so that it can be pushed up with the fingertips of the hand gripping the right steering handle 2 . , the first clutch lever 13 is in the clutch disengaged position OFF 1
In this state, the operating part 17a is located at the clutch release position OFF 2, which is located near the upper side of the grip part 2a, so that the operating part 17a can be pressed down with the fingertip of the hand that grips the right steering handle 2 .

つまり、第2クラツチレバー17がクラツチ切
り位置OFF2から押下げ操作されると、ローラ型
作用部19が第1被操作アーム部13aに対して
第1軸芯P1の方に摺動して第2クラツチレバー
17の作用アーム長さLをほぼ一定にしながら、
第1被操作アーム部13aを押上げ操作して第2
軸芯P2をデツトポイントDPの下方から上方に移
動させ、付勢機構Aが第2作用状態から第1作用
状態に切換わつて第1クラツチレバー13をクラ
ツチ入り位置ON1に操作するのである。そして、
第2クラツチレバー17がクラツチ入り位置
ON2から押上げ操作されると、ローラ型作用部
19が第3図に実線で示す状態から仮想線で示す
状態に第2被操作アーム部13bに対して第1軸
芯P1の方に摺動して第2クラツチレバー17の
作用アーム長さLをほぼ一定にしながら、第2被
操作アーム部13bを押下げ操作して第2軸芯
P2をデツトポイントDPの上方から下方に移動さ
せ、付勢機構Aが第1作用状態から第2作用状態
に切換わつて第1クラツチレバー13をクラツチ
切り位置OFF1に操作するのである。
That is, when the second clutch lever 17 is pressed down from the clutch disengagement position OFF 2 , the roller-type acting portion 19 slides toward the first axis P 1 with respect to the first operated arm portion 13a. While keeping the working arm length L of the second clutch lever 17 approximately constant,
Push up the first operated arm part 13a to
The axis P2 is moved from below to above the dead point DP, the biasing mechanism A is switched from the second operating state to the first operating state, and the first clutch lever 13 is operated to the clutch engaged position ON1 . be. and,
The second clutch lever 17 is in the clutch engaged position
When the push-up operation is performed from ON 2 , the roller type acting part 19 changes from the state shown by the solid line in FIG. 3 to the state shown by the imaginary line in the direction of the first axis P 1 with respect to the second operated arm part 13b. While keeping the working arm length L of the second clutch lever 17 substantially constant by sliding, the second operated arm portion 13b is pressed down to adjust the second axis.
P2 is moved downward from above the dead point DP, the biasing mechanism A is switched from the first operating state to the second operating state, and the first clutch lever 13 is operated to the clutch disengaged position OFF1 .

〔別実施例〕[Another example]

走行用伝動のみを入り切り操作するクラツチに
対する操作構造にも本発明は適用でき、主クラツ
チCを走行用クラツチCと称する。
The present invention can also be applied to an operating structure for a clutch that operates only the driving transmission, and the main clutch C is referred to as the driving clutch C.

農用トラクターの他、バインダー、田植機等各
種の歩行型農作業車にも本発明は適用できる。
In addition to agricultural tractors, the present invention can also be applied to various walking agricultural vehicles such as binders and rice transplanters.

尚、特許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、該記入により本発明は
添付図面の構造に限定されるものではない。
Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

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

図面は本発明に係る歩行型農作業車のクラツチ
操作構造の実施例を示し、第1図はクラツチレバ
ー配設部の一部切欠き側面図、第2図はクラツチ
レバー配設部の一部切欠き平面図、第3図は第2
クラツチレバーの作用説明図、第4図は歩行型農
用トラクター全体の側面図である。 2……操縦ハンドル、2a……握り部、13…
…第1クラツチレバー、13a,13b……摺接
接触体、17……第2クラツチレバー、17a…
…操作部、19……固定接触体、C……走行用ク
ラツチ、A……付勢機構、P1……第1軸芯、P3
……第3軸芯、ON1,ON2……クラツチ入り位
置、OFF1,OFF2……クラツチ切り位置。
The drawings show an embodiment of the clutch operation structure for a walk-behind agricultural vehicle according to the present invention; FIG. 1 is a partially cutaway side view of the clutch lever mounting portion, and FIG. 2 is a partially cutaway side view of the clutch lever mounting portion. Cutaway plan view, Figure 3 is the 2nd
FIG. 4, which is an explanatory diagram of the action of the clutch lever, is a side view of the entire walk-behind agricultural tractor. 2...Control handle, 2a...Grip portion, 13...
...First clutch lever, 13a, 13b...Sliding contact body, 17...Second clutch lever, 17a...
...Operation unit, 19...Fixed contact body, C...Traveling clutch, A...Biasing mechanism, P 1 ...First axis, P 3
...3rd axis center, ON 1 , ON 2 ...clutch engaged position, OFF 1 , OFF 2 ...clutch disengaged position.

Claims (1)

【特許請求の範囲】 1 走行用クラツチCを操作する第1クラツチレ
バー13を操縦ハンドル2に前後揺動自在に取付
け、前記第1クラツチレバー13のクラツチ入り
位置ON1への揺動操作に伴つて該第1クラツチ
レバー13を前記クラツチ入り位置ON1に付勢
する第1作用状態と、前記第1クラチツレバー1
3のクラツチ切り位置OFF1への揺動操作に伴つ
て該第1クラツチレバー13を前記クラツチ切り
位置OFF1に付勢する第2作用状態とに切換わる
付勢機構Aを備えた歩行型農作業車のクラツチ操
作構造であつて、 前記第1クラツチレバー13の第1揺動軸芯
P1とは別の第3揺動軸芯P3を有した第2クラツ
チレバー17を前記操縦ハンドル2に取付け、 前記第2クラツチレバー17に、前記第3揺動
軸芯P3からの位置が一定の固定接触体19を取
付けるとともに、前記第1クラツチレバー13
に、前記固定接触体19との接触状態を維持しな
がら前記第1揺動軸芯P1との距離変化を許容す
る摺接接触体13a,13bを設けることによ
り、前記第2クラツチレバー17の往復揺動操作
によつて前記第1クラツチレバー13を前記クラ
ツチ入り及び切り位置ON1,OFF1に操作自在に
構成し、 前記第1クラツチレバー13が前記クラツチ入
り位置ON1に存在する前記第2クラツチレバー
17のクラツチ入り位置ON2と、前記第1クラ
ツチレバー13が前記クラツチ切り位置OFF1
存在する前記第2クラツチレバー17のクラツチ
切り位置OFF2との両状態において、前記第2ク
ラツチレバー17の操作部17aが前記操縦ハン
ドル2の握り部2aの近くに位置するように、前
記第2クラツチレバー17の形状と前記第3軸芯
P3の位置とを設定してある歩行型農作業車のク
ラツチ操作構造。
[Scope of Claims] 1. A first clutch lever 13 for operating a traveling clutch C is attached to the steering handle 2 so as to be swingable back and forth, and when the first clutch lever 13 is swung to the clutch engaged position ON 1 . a first operating state in which the first clutch lever 13 is biased to the clutch engaged position ON 1 ;
Walk-type agricultural work equipped with a biasing mechanism A that switches to a second operating state that biases the first clutch lever 13 to the clutch disengaged position OFF 1 when the first clutch lever 13 is rocked to the clutch disengaged position OFF 1 of No. 3. A clutch operation structure for a vehicle, wherein a first swing axis of the first clutch lever 13 is provided.
A second clutch lever 17 having a third swing axis P 3 different from P 1 is attached to the control handle 2, and the second clutch lever 17 has a position from the third swing axis P 3 . At the same time, the fixed contact body 19 with a constant
By providing sliding contact members 13a and 13b that allow a change in distance from the first swing axis P1 while maintaining contact with the fixed contact member 19, the second clutch lever 17 can be adjusted. The first clutch lever 13 is configured to be freely operable between the clutch engaged and disengaged positions ON 1 and OFF 1 by a reciprocating rocking operation, and the first clutch lever 13 is configured to be in the clutch engaged position ON 1 and the clutch disengaged position ON 1 . In both the clutch engagement position ON 2 of the second clutch lever 17 and the clutch disengagement position OFF 2 of the second clutch lever 17 in which the first clutch lever 13 is in the clutch disengagement position OFF 1 , the second clutch lever 17 is in the clutch disengagement position OFF 2 . The shape of the second clutch lever 17 and the third axis are adjusted such that the operating portion 17a of the lever 17 is located near the grip portion 2a of the operating handle 2.
Clutch operation structure of a walking agricultural vehicle with position P 3 set.
JP62304319A 1987-11-30 1987-11-30 Clutch operating structure of walking type agricultural vehicle Granted JPH01145231A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62304319A JPH01145231A (en) 1987-11-30 1987-11-30 Clutch operating structure of walking type agricultural vehicle
DE3840218A DE3840218A1 (en) 1987-11-30 1988-11-29 TILLAGE VEHICLE WITHOUT A SEAT
GB8827830A GB2212889B (en) 1987-11-30 1988-11-29 Walking operator type agricultural working vehicle having a finger lever
FR888815713A FR2623765B1 (en) 1987-11-30 1988-11-30
KR1019880015893A KR930000802B1 (en) 1987-11-30 1988-11-30 Pedestrian Farming Work Vehicle with Finger Lever

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62304319A JPH01145231A (en) 1987-11-30 1987-11-30 Clutch operating structure of walking type agricultural vehicle

Publications (2)

Publication Number Publication Date
JPH01145231A JPH01145231A (en) 1989-06-07
JPH0549491B2 true JPH0549491B2 (en) 1993-07-26

Family

ID=17931594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62304319A Granted JPH01145231A (en) 1987-11-30 1987-11-30 Clutch operating structure of walking type agricultural vehicle

Country Status (5)

Country Link
JP (1) JPH01145231A (en)
KR (1) KR930000802B1 (en)
DE (1) DE3840218A1 (en)
FR (1) FR2623765B1 (en)
GB (1) GB2212889B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4680873B2 (en) * 2006-11-29 2011-05-11 本田技研工業株式会社 Working machine operation mechanism

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB257739A (en) * 1925-09-03 1926-09-09 John Vernon Pugh Improvements in or relating to cycle or like brakes
GB792769A (en) * 1955-07-16 1958-04-02 Sackville Ltd Improvements in or relating to control-lever fittings for use with bowden cables
GB1393900A (en) * 1971-08-18 1975-05-14 Raleigh Industries Ltd Cycle brake operating means
US3719104A (en) * 1971-09-17 1973-03-06 Excel Ind Bicycle brake applying device
US3974712A (en) * 1975-07-16 1976-08-17 Pennsylvania Wire Rope Corporation Auxiliary brake lever
JPS5625624U (en) * 1979-07-23 1981-03-09
JPS6144950Y2 (en) * 1980-09-10 1986-12-17
JPH074657Y2 (en) * 1986-12-17 1995-02-01 ヤンマー農機株式会社 Clutch operating device for mobile agricultural machinery

Also Published As

Publication number Publication date
DE3840218A1 (en) 1989-06-15
DE3840218C2 (en) 1990-12-06
JPH01145231A (en) 1989-06-07
GB8827830D0 (en) 1988-12-29
FR2623765B1 (en) 1990-12-07
FR2623765A1 (en) 1989-06-02
GB2212889A (en) 1989-08-02
GB2212889B (en) 1992-04-22
KR930000802B1 (en) 1993-02-05
KR890007952A (en) 1989-07-06

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