JP2001161103A - Operation device of power tiller - Google Patents

Operation device of power tiller

Info

Publication number
JP2001161103A
JP2001161103A JP34640599A JP34640599A JP2001161103A JP 2001161103 A JP2001161103 A JP 2001161103A JP 34640599 A JP34640599 A JP 34640599A JP 34640599 A JP34640599 A JP 34640599A JP 2001161103 A JP2001161103 A JP 2001161103A
Authority
JP
Japan
Prior art keywords
lever
wheel
operating lever
operating
shifted
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.)
Granted
Application number
JP34640599A
Other languages
Japanese (ja)
Other versions
JP4176265B2 (en
Inventor
Masashi Takeuchi
正志 竹内
Yoshiharu Sumiya
佳治 角谷
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP34640599A priority Critical patent/JP4176265B2/en
Publication of JP2001161103A publication Critical patent/JP2001161103A/en
Application granted granted Critical
Publication of JP4176265B2 publication Critical patent/JP4176265B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To simplify the operation of a power tiller by enabling the control of traveling motion, backward motion and tilling work with a single operation lever. SOLUTION: The single operation lever 26 is attached to a machine body 1 in a manner to be movable along a select path Se directing in the lateral direction of the body 1 and a shift path Sh directing in the longitudinal direction of the body 1. The select path Se has a traveling position D and a tilling work position C and the shift path Sh has a neutral position N at the middle point. The wheel 13 is driven forward by shifting the operation lever 26 forward F at the traveling position D, the wheel 13 and a rotary working machine 18 are driven by shifting the operation lever 26 forward F at the tilling work position C and the wheel 13 is driven backward by shifting the operation lever 26 backward B at the retreating position R.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は,動力耕耘機の走
行,後進,耕耘作業等を制御する動力耕耘機の運転操作
装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation and operation device for a power cultivator for controlling running, backward movement, tilling work, and the like of a power cultivator.

【0002】[0002]

【従来の技術】動力耕耘機には,一般に,車輪の正転及
び逆転を可能にする前,後進切換え装置と,ロータリ作
業機の回転を可能にするロータリクラッチが設けられて
おり,従来のものでは,これら前,後進切換え装置及び
ロータリクラッチを個別の操作レバーにより操作するよ
うにしている。
2. Description of the Related Art A power cultivator is generally provided with a reverse switching device and a rotary clutch for enabling rotation of a rotary work machine before forward and reverse rotation of wheels is possible. In this system, the front / reverse switching device and the rotary clutch are operated by individual operation levers.

【0003】[0003]

【発明が解決しようとする課題】上記のように前,後進
切換え装置及びロータリクラッチを個別の操作レバーに
より操作することは,運転操作を煩雑にして作業者の疲
労を増すことになる。
As described above, operating the forward / reverse switching device and the rotary clutch with separate operating levers complicates the driving operation and increases operator fatigue.

【0004】本発明者等は,かゝる事情に鑑みてなされ
たもので,単一の操作レバーにより行,後進及び耕耘作
業を制御し得るようにして,運転操作の簡素化を図り,
作業者の疲労軽減に寄与し得る動力耕耘機を提供するこ
とを目的とする。
The present inventors have been made in view of such circumstances, and have attempted to simplify the driving operation by controlling the row, reverse and tillage operations with a single operation lever.
It is an object of the present invention to provide a power cultivator that can contribute to reducing fatigue of workers.

【0005】[0005]

【課題を解決するための手段】上記目的を達成するため
に,本発明は,機体に単一の操作レバーを,これが機体
の左右方向に沿うセレクト経路と,機体の前後方向に沿
うシフト経路とを移動し得るように取付け,セレクト経
路には走行位置及び耕耘作業位置を並設し,シフト経路
には中間点にニュートラル位置を設け,操作レバーを走
行位置においてニュートラル位置から前方へシフトする
と車輪が前進駆動され,操作レバーを耕耘作業位置にお
いて前方へシフトすると車輪及びロータリ作業機が駆動
され,操作レバーを後進位置において後方へシフトする
と車輪が後進駆動されるようにしたことを第1の特徴と
する。
In order to achieve the above-mentioned object, the present invention provides a single operating lever for an airframe, which includes a select path along the horizontal direction of the airframe and a shift path along the longitudinal direction of the airframe. The traveling position and the tilling work position are arranged side by side on the select route, the neutral position is provided at the intermediate point on the shift route, and when the operating lever is shifted forward from the neutral position in the traveling position, the wheels are moved. The first feature is that the wheels and the rotary work machine are driven when the operation lever is shifted forward in the tilling operation position when the operation lever is driven forward, and the wheels are driven backward when the operation lever is shifted rearward in the reverse position. I do.

【0006】この第1の特徴によれば,走行,後進及び
耕耘作業の制御を単一の操作レバーにより容易に行うこ
とができるので,作業者の疲労軽減に有効であり,しか
も走行時及び耕耘作業時には,操作レバーをニュートラ
ル位置から前方に向かってシフトし,後進時には,それ
らとは反対の後方に向かってシフトするので,上記各運
転操作を的確に行うことができ,前後進の誤操作防止に
も有効である。
[0006] According to the first feature, the control of traveling, backward movement and tilling work can be easily performed by a single operation lever, so that it is effective for reducing the fatigue of the worker, and also during running and tilling. At the time of work, the operating lever is shifted forward from the neutral position, and at the time of reversing, it shifts backward, opposite to them, so that each of the above-mentioned driving operations can be performed accurately, preventing erroneous operation of moving forward and backward. Is also effective.

【0007】また本発明は,上記特徴に加えて,セレク
ト経路には走行位置及び耕耘作業位置と並んで車輪自由
解放位置を設け,操作レバーを車輪自由解放位置におい
て前方又は後方へシフトすると車輪への動力伝達が遮断
されるようにしたことを第2の特徴とする。
[0007] In addition to the above features, the present invention further provides a wheel free release position along with the traveling position and the tilling work position on the select path, and shifts the operation lever forward or backward in the wheel free release position to the wheel. The second feature is that the power transmission is interrupted.

【0008】この第2の特徴によれば,走行,後進及び
耕耘作業のみならず,車輪自由解放の制御をも同一の操
作レバーをもって行うことができ,操作性の向上に寄与
し得る。
[0008] According to the second feature, not only the running, the backward movement and the tilling work, but also the control of the free release of the wheels can be performed with the same operating lever, which can contribute to the improvement of operability.

【0009】[0009]

【発明の実施の形態】以下,本発明の実施の形態を,添
付図面に示す本発明の実施例に基づいて説明する。
Embodiments of the present invention will be described below based on embodiments of the present invention shown in the accompanying drawings.

【0010】図1は本発明の運転操作装置を備えた動力
耕耘機の側面図,図2は上記運転操作装置の側面図,図
3は図2の3−3線断面図(走行時),図4は図3の要
部拡大図,図5は後進時の作用説明図,図6は耕耘作業
時の作用説明図,図7は車輪自由解放時の作用説明図,
図8は図3の8−8線断面図,図9は図3の9−9線断
面図,図10は図3の10矢視図である。
FIG. 1 is a side view of a power cultivator equipped with a driving operation device of the present invention, FIG. 2 is a side view of the driving operation device, FIG. 3 is a sectional view taken along line 3-3 in FIG. FIG. 4 is an enlarged view of a main part of FIG. 3, FIG. 5 is an operation explanatory view at the time of reverse travel, FIG. 6 is an operation explanatory view at the time of tilling work, FIG.
8 is a sectional view taken along line 8-8 of FIG. 3, FIG. 9 is a sectional view taken along line 9-9 of FIG. 3, and FIG. 10 is a view taken along arrow 10 of FIG.

【0011】先ず,図1に示すように,動力耕耘機Tの
機体1は,上下方向に延びるリダクションケース2と,
該ケース2の前面に突設されるフレーム3と,リダクシ
ョンケース2の上部に連設されるミッションケース4
と,このミッションケース4の後部に分離可能に連結さ
れるロータリケース5と,ミッションケース4の上部に
取付けられて後方に延出するループ型の操向ハンドル6
とから構成される。
First, as shown in FIG. 1, a body 1 of a power cultivator T includes a reduction case 2 extending in a vertical direction,
A frame 3 protruding from the front of the case 2 and a transmission case 4 connected to the upper part of the reduction case 2
A rotary case 5 detachably connected to a rear portion of the transmission case 4; and a loop-type steering handle 6 attached to an upper portion of the transmission case 4 and extending rearward.
It is composed of

【0012】フレーム3にはエンジン7が搭載され,ミ
ッションケース4には静油圧式無段変速機8が収容さ
れ,エンジン7のクランク軸9と,無段変速機8の入力
軸10とがベルト式の1次駆動装置11を介して連結さ
れる。リダクションケース2は,他端部で車軸12を支
持すると共に,この車軸12と無段変速機8の出力軸1
4との間を連結する車輪駆動装置15を収容する。車軸
12には車輪13が取りられる。
An engine 7 is mounted on the frame 3 and a transmission case 4 houses a hydrostatic continuously variable transmission 8. A crankshaft 9 of the engine 7 and an input shaft 10 of the continuously variable transmission 8 are connected by a belt. It is connected via a primary drive 11 of the formula. The reduction case 2 supports the axle 12 at the other end, and the axle 12 and the output shaft 1 of the continuously variable transmission 8.
4 is accommodated. The axle 12 is provided with wheels 13.

【0013】ロータリケース5は,下端部でロータリ軸
17を支持すると共に,このロータリ軸17と無段変速
機8の出力軸14との間を連結するロータリ駆動装置1
9を収容する。ロータリ軸17にはロータリ作業機18
が取りられる。
The rotary case 5 supports a rotary shaft 17 at a lower end thereof and connects the rotary shaft 17 to the output shaft 14 of the continuously variable transmission 8.
9 are accommodated. A rotary work machine 18 is mounted on the rotary shaft 17.
Is taken.

【0014】静油圧式無段変速機8は,可変容量の斜板
式油圧ポンプと,固定容量の斜板式油圧モータとを油圧
閉回路を介して連結してなる公知のもので,その油圧ポ
ンプに入力軸10が,また油圧モータに出力軸14がそ
れぞれ連結される。そして油圧ポンプの斜板に連結され
る変速レバー16(図3参照)をニュートラル位置から
前進側fへ操作すると,出力軸14の回転速度をゼロか
ら前進方向へ増加させ,また変速レバー16をニュート
ラル位置から後進側rへ操作すると,出力軸14の回転
速度をゼロから後進方向へ増加させるようになってい
る。
The hydrostatic stepless transmission 8 is a known type in which a variable displacement swash plate type hydraulic pump and a fixed displacement swash plate type hydraulic motor are connected via a hydraulic closed circuit. The input shaft 10 is connected to the hydraulic motor, and the output shaft 14 is connected to the hydraulic motor. When the shift lever 16 (see FIG. 3) connected to the swash plate of the hydraulic pump is operated from the neutral position to the forward side f, the rotation speed of the output shaft 14 is increased from zero in the forward direction, and the shift lever 16 is moved to the neutral position. When operated from the position to the reverse side r, the rotational speed of the output shaft 14 is increased from zero in the reverse direction.

【0015】1次駆動装置11には,その駆動力の伝達
経路をオン,オフし得るテンション式の第1クラッチ2
1が設けられ,車輪駆動装置15には,その駆動力の伝
達経路をオン,オフし得る第2クラッチ22が設けら
れ,またロータリ駆動装置19には,その駆動力の伝達
経路をオン,オフし得る第3クラッチ23が設けられ
る。
The primary drive device 11 has a tension type first clutch 2 which can turn on and off a transmission path of the drive force.
1 is provided, the wheel drive unit 15 is provided with a second clutch 22 capable of turning on and off the transmission path of the driving force, and the rotary drive unit 19 is turned on and off of the transmission path of the driving force. A third clutch 23 is provided.

【0016】図2〜図4に示すように,操向ハンドル6
には本発明の運転操作装置24が取付けられる。この運
転操作装置24は操作ハンドル6に固着されるケーシン
グ25を有し,その左右両側壁に制御軸27が回転可能
に支承される。この制御軸27の,ケーシング25外に
突出した両端部に,操向ハンドル6と共に把持し得るデ
ッドマンレバー28の両端部が相対回転可能に支持さ
れ,このデッドマンレバー28にはリンク29及び作動
ワイヤ30を介して前記第1クラッチ21が連結され
る。第1クラッチ21は,作動ワイヤ30の弛緩時にオ
フ状態,牽引時にオン状態となる。
As shown in FIGS. 2 to 4, the steering handle 6
Is mounted with the driving operation device 24 of the present invention. The operation device 24 has a casing 25 fixed to the operation handle 6, and a control shaft 27 is rotatably supported on both left and right side walls. At both ends of the control shaft 27 protruding outside the casing 25, both ends of a deadman lever 28 which can be gripped together with the steering handle 6 are rotatably supported. The deadman lever 28 has a link 29 and an operation wire 30. The first clutch 21 is connected via the. The first clutch 21 is turned off when the operating wire 30 is relaxed, and turned on when towing.

【0017】またケーシング25内において制御軸27
には,図3及び図4において左側から順に,該軸27に
スプライン嵌合する第1作動レバー31,該軸27に回
転可能に嵌合される第2作動レバー32,該軸27にキ
ー36を介して結合される第3作動レバー33,該軸2
7に回転可能に嵌合されるブラケット37,該軸27に
回転可能に嵌合される第4作動レバー34及び第5作動
レバー35が設けられる。第2作動レバー32には第1
駆動セクタギヤ40が,また第4作動レバー34には,
第1駆動セクタギヤ40より大径の第2駆動セクタギヤ
41がそれぞれ一体に形成される。
In the casing 25, a control shaft 27 is provided.
3 and 4, the first operating lever 31 is spline-fitted to the shaft 27, the second operating lever 32 is rotatably fitted to the shaft 27, and the key 36 is Operating lever 33, which is coupled through
7, a fourth operating lever 34 and a fifth operating lever 35 rotatably fitted to the shaft 27 are provided. The second operating lever 32 has a first
The drive sector gear 40 and the fourth operating lever 34
The second drive sector gears 41 having a larger diameter than the first drive sector gear 40 are formed integrally.

【0018】第1作動レバー31には,作動ワイヤ42
を介して前記第2クラッチ22が連結され,該クラッチ
22は,作動ワイヤ42の弛緩時にオン状態,牽引時に
オフ状態となる。
The first operating lever 31 has an operating wire 42
The second clutch 22 is connected to the clutch 22 via an opening, and the clutch 22 is turned on when the operating wire 42 is relaxed and turned off when the operation wire 42 is pulled.

【0019】またケーシング25の左右両側壁には,制
御軸27と平行な支持軸45が取付けられ,該軸45に
は,前記第1及び第2駆動セクタギヤ40,41と噛合
する第1及び第2被動セクタギヤ46,47を相互に一
体に結合してなる被動セクタギヤ組立体48が回転可能
に設けられる。このセクタギヤ組立体48は作動アーム
49を一体に備えており,これにプッシュ・プル式の作
動ワイヤ43を介して前記静油圧式無段変速機8の変速
レバー16が連結され,変速レバー16は,作動ワイヤ
43の牽引により前進側fへ,作動ワイヤ43の押圧に
より後進側rへ回動される。
A support shaft 45 parallel to the control shaft 27 is mounted on both left and right side walls of the casing 25, and the first and second drive sector gears 40 and 41 are engaged with the support shaft 45 on the shaft 45. A driven sector gear assembly 48, which is formed by integrally coupling the two driven sector gears 46 and 47, is provided rotatably. The sector gear assembly 48 is integrally provided with an operating arm 49, to which the shift lever 16 of the hydrostatic continuously variable transmission 8 is connected via a push-pull type operating wire 43. The operation wire 43 is turned to the forward side f by pulling and the operation wire 43 is turned to the reverse side r by pressing of the operation wire 43.

【0020】第5作動レバー35には,リンク50及び
作動ワイヤ44を介して前記第3クラッチ23が連結さ
れ,該クラッチ23は,作動ワイヤ44の弛緩時にオン
状態,牽引時にオフ状態となる。
The third clutch 23 is connected to the fifth operating lever 35 via a link 50 and an operating wire 44, and the clutch 23 is turned on when the operating wire 44 is relaxed and turned off when the tow is pulled.

【0021】ブラケット37には,制御軸27と直交す
る方向に配置される枢軸51と,制御軸27と平行に摺
動可能な摺動ピン52とが取付けられ,枢軸51によっ
て操作レバー26のボス26aが回転可能に支持され
る。
The bracket 37 is provided with a pivot 51 disposed in a direction perpendicular to the control shaft 27 and a sliding pin 52 slidable in parallel with the control shaft 27. 26a is rotatably supported.

【0022】操作レバー26のボス26aには,連結孔
56を持った作動アーム55が一体に形成されており,
その連結孔56に摺動可能に嵌合する連結ピン57が,
ブラケット37の長孔58を貫通して摺動ピン52に固
設される。長孔58は摺動ピン52と平行に配置され
る。而して,操作レバー26は,機体1の左右方向に沿
う枢軸51周りのセレクト経路Seと,機体1の前後方
向に沿う制御軸27周りのシフト経路Shとを移動する
ことが可能であり(図10参照),操作レバー26のセ
レクト経路Seでの移動によれば,連結ピン57を介し
て摺動ピン52を図4で左右に摺動させることができ
る。そのセレクト経路Seには,図10で左側から順
に,耕耘作業位置C,走行位置D,車輪自由解放位置W
及び後進位置Rが設けられる。また操作レバー26のシ
フト経路Shでの回動によれば,ブラケット37を介し
て摺動ピン52を制御軸27周りに回動することがで
き,そのシフト経路Shの中間点にニュートラル位置N
が設けられる。したがって,操作レバー26は,ニュー
トラル位置Nからは前方Fと後方Bとへ移動することが
できる。
An operating arm 55 having a connecting hole 56 is formed integrally with the boss 26a of the operating lever 26.
A connecting pin 57 slidably fitted in the connecting hole 56 is
It is fixed to the slide pin 52 through the long hole 58 of the bracket 37. The long hole 58 is arranged in parallel with the slide pin 52. Thus, the operation lever 26 can move a select path Se around the pivot 51 along the left-right direction of the body 1 and a shift path Sh around the control axis 27 along the front-back direction of the body 1 ( According to the movement of the operation lever 26 along the select path Se, the sliding pin 52 can be slid right and left in FIG. In the select route Se, in order from the left side in FIG.
And a reverse position R. Further, according to the rotation of the operation lever 26 on the shift path Sh, the sliding pin 52 can be rotated around the control shaft 27 via the bracket 37, and the neutral position N is set at the intermediate point of the shift path Sh.
Is provided. Therefore, the operation lever 26 can move forward F and backward B from the neutral position N.

【0023】図4及び図8に示すように,第2作動レバ
ー32,第4作動レバー34及び第5作動レバー35に
は,摺動ピン52が離脱可能に嵌合する,該ピン52と
同じ円形の連結孔60,61,62が設けられる。また
第2作動レバー32には,摺動ピン52が常時嵌合する
ロストモーション孔63が設けられ,このロストモーシ
ョン孔63は,図9に示すように,制御軸27と同心の
円弧状をなしいて,摺動ピン52の制御軸27周りの一
定角度の回動を第3作動レバー33に伝達させないよう
になっている。
As shown in FIGS. 4 and 8, a sliding pin 52 is detachably fitted to the second operating lever 32, the fourth operating lever 34, and the fifth operating lever 35. Circular connection holes 60, 61, 62 are provided. Further, the second operation lever 32 is provided with a lost motion hole 63 into which the sliding pin 52 is always fitted, and the lost motion hole 63 has an arc shape concentric with the control shaft 27 as shown in FIG. In addition, the rotation of the sliding pin 52 at a fixed angle around the control shaft 27 is not transmitted to the third operating lever 33.

【0024】前記ケーシング25にその上面を覆う操作
パネル64が取付けられる。この操作パネル64には操
作レバー26が係合する規制溝65が設けられ,これに
より操作レバー26のセレクト経路Seはニュートラル
位置Nに限定され,耕耘作業位置C,走行位置D及び車
輪自由解放位置Wでのシフト経路Shはニュートラル位
置Nから前方F側に限定され,後進位置Rでのシフト経
路Shはニュートラル位置Nから後方B側に限定され
る。
An operation panel 64 for covering the upper surface of the casing 25 is attached to the casing 25. The operation panel 64 is provided with a restriction groove 65 with which the operation lever 26 is engaged, whereby the select route Se of the operation lever 26 is limited to the neutral position N, the tilling operation position C, the traveling position D, and the wheel free release position. The shift path Sh at W is limited from the neutral position N to the front F side, and the shift path Sh at the reverse position R is limited from the neutral position N to the rear B side.

【0025】次に,この実施例の作用について説明す
る。 [走行時](図3,図4,図8及び図10参照) 図3及び図4に示すように,先ず操作レバー26をニュ
ートラル位置Nに置いた状態で,デッドマンレバー28
を操向ハンドル6と共に把持することにより,作動ワイ
ヤ30を牽引して,第1クラッチ21をオン状態にす
る。次いで操作レバー26をセレクト経路Seに沿って
走行位置Dまで回動する。すると,操作レバー26によ
って制御される摺動ピン52が第2作動レバー32の連
結孔60から離脱する一方,第4作動レバー34の連結
孔61に嵌合するので,今度は操作レバー26を前方F
に向かってシフトすると,摺動ピン52を介して第4作
動レバー34が正方向に回動されるので,該レバー34
と一体の第2駆動セクタギヤ41により第2被動セクタ
ギヤ47が正転(図8で時計方向に回転)され,作動ア
ーム49が作動ワイヤ43を牽引することにより静油圧
式無段変速機8の変速レバー16を前進側fへ回動し
て,変速比をトップ側へ無段階に制御する。
Next, the operation of this embodiment will be described. [Driving] (See FIGS. 3, 4, 8, and 10) As shown in FIGS. 3 and 4, first, the operation lever 26 is placed in the neutral position N and the deadman lever 28 is turned on.
Is gripped together with the steering handle 6, thereby pulling the operating wire 30 to turn the first clutch 21 on. Next, the operation lever 26 is turned to the traveling position D along the select route Se. Then, the sliding pin 52 controlled by the operation lever 26 is detached from the connection hole 60 of the second operation lever 32, and is fitted into the connection hole 61 of the fourth operation lever 34. F
, The fourth operating lever 34 is rotated in the forward direction via the sliding pin 52, so that the lever 34
The second driven sector gear 47 is rotated forward (rotated clockwise in FIG. 8) by the second drive sector gear 41 integrated with the second drive sector gear 41. By rotating the lever 16 to the forward side f, the speed ratio is steplessly controlled to the top side.

【0026】この間,第3作動レバー33の円弧状のロ
ストモーション孔63においては摺動ピン52は遊動す
るので,第3作動レバー33は不作動状態を保ち,第2
クラッチ22のオン状態を維持する。
During this time, since the sliding pin 52 moves freely in the arc-shaped lost motion hole 63 of the third operating lever 33, the third operating lever 33 maintains the inoperative state,
The on state of the clutch 22 is maintained.

【0027】したがって,エンジン7の動力は,1次駆
動装置11,静油圧式無段変速機8及び車輪駆動装置1
5を介して車軸12及び車輪13に伝達し,それを正転
させることになり,動力耕耘機Tを走行させることがで
きる。
Therefore, the power of the engine 7 is controlled by the primary drive unit 11, the hydrostatic continuously variable transmission 8 and the wheel drive unit 1.
The power cultivator T is transmitted to the axle 12 and the wheels 13 via the wheel 5 to rotate the power rotator T forward.

【0028】この場合,動力耕耘機Tの走行にロータリ
作業機18が邪魔となるときは,ロータリケース5をミ
ッションケース4から取り外しておくものである。 [後進時](図4,図5,図8及び図10参照) 第1クラッチ21のオン状態において,操作レバー26
をセレクト経路Seに沿って後進位置Rまで回動する。
すると図5に示すように,摺動ピン52は左方へ移動し
て,第2作動レバー32の連結孔60(図4参照)に嵌
合する一方,第4作動レバー34の連結孔61から離脱
する。そこで,操作レバー26を後方Bに向かってシフ
トすると,摺動ピン52を介して第2作動レバー32が
逆方向に回動されるので,該レバー32と一体の第1駆
動セクタギヤ40により第1被動セクタギヤ46が逆転
(図8で反時計方向に回転)され,作動アーム49が作
動ワイヤ43を押圧することにより静油圧式無段変速機
8の変速レバー16を後進側rへ回動して,変速比を無
段階に制御する。その際,第1駆動セクタギヤ40は,
第2駆動セクタギヤ41より小径であるので,操作レバ
ー26の一定のシフト角度による作動アーム49の回動
角度は,前記走行時より小さく,したがって無段変速機
8の変速比の変化は緩徐となる。
In this case, when the rotary work machine 18 hinders the traveling of the power cultivator T, the rotary case 5 is detached from the transmission case 4. [Reverse] (See FIGS. 4, 5, 8, and 10) When the first clutch 21 is in the on state, the operation lever 26
To the reverse position R along the select route Se.
Then, as shown in FIG. 5, the sliding pin 52 moves to the left and fits into the connection hole 60 of the second operation lever 32 (see FIG. 4), and from the connection hole 61 of the fourth operation lever 34. break away. Therefore, when the operating lever 26 is shifted toward the rear B, the second operating lever 32 is rotated in the opposite direction via the sliding pin 52, so that the first driving sector gear 40 integrated with the lever 32 causes the first operating sector gear 40 to rotate. The driven sector gear 46 is reversed (rotated counterclockwise in FIG. 8), and the operating arm 49 presses the operating wire 43 to rotate the transmission lever 16 of the hydrostatic continuously variable transmission 8 to the reverse side r. , The gear ratio is steplessly controlled. At this time, the first drive sector gear 40
Since the diameter of the second drive sector gear 41 is smaller than that of the second drive sector gear 41, the rotation angle of the operation arm 49 at a constant shift angle of the operation lever 26 is smaller than that during the traveling, and thus the change in the gear ratio of the continuously variable transmission 8 is slow. .

【0029】この間も,第3作動レバー33の円弧状の
ロストモーション孔63においては摺動ピン52が遊動
するので,第3作動レバー33は不作動状態を保ち,第
2クラッチ22のオン状態を維持する。
During this time, the sliding pin 52 moves freely in the arc-shaped lost motion hole 63 of the third operating lever 33, so that the third operating lever 33 is kept in the inactive state and the second clutch 22 is turned on. maintain.

【0030】したがって,エンジン7の動力は,1次駆
動装置11,静油圧式無段変速機8及び車輪駆動装置1
5を介して車軸12及び車輪13に伝達し,これを逆転
するので,動力耕耘機Tを後進させることができる。 [耕耘作業時](図4,図6,図8及び図10参照) 第1クラッチ21のオン状態において,操作レバー26
をセレクト経路Seに沿って耕耘作業位置Cまで回動す
る。すると図6に示すように,摺動ピン52は,今度は
右方へ移動して,第2作動レバー32の連結孔60から
離脱する一方,第4及び第5作動レバー34,35の連
結孔61,62(図4参照)に嵌合する。そこで,操作
レバー26を前方Fに向かってシフトすると,摺動ピン
52を介して第4及び第5作動レバー34,35が正方
向に回動される。第4作動レバー34の正方向への回動
によれば,前記[走行時]と同様の作用により静油圧式
無段変速機8の変速レバー16が前進f側へ回動して,
変速比をトップ側へ無段階に制御し,また第5作動レバ
ー35の回動によれば,作動ワイヤ44が牽引されて,
第3クラッチ23をオン状態にする。
Therefore, the power of the engine 7 is controlled by the primary drive unit 11, the hydrostatic continuously variable transmission 8 and the wheel drive unit 1.
The power tiller T is transmitted to the axle 12 and the wheels 13 via the wheel 5 and is reversed, so that the power cultivator T can be moved backward. [Tilling work] (See FIGS. 4, 6, 8, and 10) In the ON state of the first clutch 21, the operation lever 26
Is rotated to the tilling work position C along the select route Se. Then, as shown in FIG. 6, the sliding pin 52 moves rightward and separates from the connection hole 60 of the second operation lever 32, while connecting holes of the fourth and fifth operation levers 34 and 35. 61 and 62 (see FIG. 4). Then, when the operating lever 26 is shifted toward the front F, the fourth and fifth operating levers 34 and 35 are rotated in the forward direction via the sliding pins 52. According to the rotation of the fourth operating lever 34 in the forward direction, the shift lever 16 of the hydrostatic continuously variable transmission 8 is rotated toward the forward f side by the same operation as in [running], and
The gear ratio is steplessly controlled to the top side, and according to the rotation of the fifth operating lever 35, the operating wire 44 is pulled,
The third clutch 23 is turned on.

【0031】この間も,第3作動レバー33の円弧状の
ロストモーション孔63においては摺動ピン52が遊動
するので,第3作動レバー33は不作動状態を保ち,第
2クラッチ22のオン状態を維持する。
During this time, the sliding pin 52 moves freely in the arc-shaped lost motion hole 63 of the third operating lever 33, so that the third operating lever 33 maintains the inoperative state and the second clutch 22 is turned on. maintain.

【0032】したがって,エンジン7の動力は,1次駆
動装置11,静油圧式無段変速機8及び車輪駆動装置1
5を介して車軸12及び車輪13に伝達し,これを正転
させると同時に,ロータリ駆動装置19を介してロータ
リ軸17にも伝達し,ロータり作業機18を駆動するこ
とができる。 [車輪自由解放時](図4,図7,図9及び図10参
照) 例えば耕耘作業中,機体1の転向のため,車輪13への
動力伝達のみを一時遮断して車輪13を自由に解放する
には,第1クラッチ21のオン状態において,操作レバ
ー26をセレクト経路Seに沿って車輪自由解放位置W
まで回動する。すると図7に示すように,摺動ピン52
は第2及び第4作動レバー32,34の両連結孔60,
61から離脱する。そこで,操作レバー26を前方Fに
向かって大きくシフトすると,摺動ピン52は,遂には
第3作動レバー33のロストモーション孔63の一端壁
を押圧して,第3作動レバー33を回動するようにな
る。この第3作動レバー33の回動は,キー36を介し
て制御軸27に,さらに第1作動レバー31へと伝達し
て,作動ワイヤ30を牽引するので,第2クラッチ22
をオフ状態にする。
Therefore, the power of the engine 7 is controlled by the primary drive unit 11, the hydrostatic continuously variable transmission 8 and the wheel drive unit 1.
5 and transmitted to the axle 12 and the wheels 13 and forwardly, and simultaneously transmitted to the rotary shaft 17 via the rotary drive device 19 to drive the rotary working machine 18. [When the wheels are released freely] (See FIGS. 4, 7, 9, and 10) For example, during tilling work, due to the turning of the body 1, only the power transmission to the wheels 13 is temporarily cut off and the wheels 13 are released freely. When the first clutch 21 is in the ON state, the operation lever 26 is moved along the select path Se to the wheel free release position W.
To rotate. Then, as shown in FIG.
Are connecting holes 60 of the second and fourth operating levers 32, 34,
Depart from 61. Therefore, when the operating lever 26 is largely shifted toward the front F, the sliding pin 52 finally pushes one end wall of the lost motion hole 63 of the third operating lever 33 to rotate the third operating lever 33. Become like The rotation of the third operating lever 33 is transmitted to the control shaft 27 via the key 36 and further to the first operating lever 31 to pull the operating wire 30.
To the off state.

【0033】したがって,無段変速機8から車軸12へ
の動力伝達が遮断され,車輪13の回転が自由になり,
機体1の取り回しを容易に行うことができる。 [デッドマン時]操作レバー26が何れの位置にあろう
とも,作業者がデッドマンレバー28から手を離すと,
作動ワイヤ30が弛緩されることにより,第1クラッチ
21がオフ状態となり,エンジン7から無段変速機8へ
の動力伝達が遮断される。したがって,車輪13及びロ
ータリ作業機18の回転を即座に停止させることができ
る。
Therefore, the power transmission from the continuously variable transmission 8 to the axle 12 is cut off, and the rotation of the wheels 13 becomes free.
The body 1 can be easily handled. [At the time of the deadman] Regardless of the position of the operation lever 26, when the operator releases the hand from the deadman lever 28,
When the operation wire 30 is relaxed, the first clutch 21 is turned off, and power transmission from the engine 7 to the continuously variable transmission 8 is cut off. Therefore, the rotation of the wheels 13 and the rotary work machine 18 can be immediately stopped.

【0034】尚,上記何れの運転においても,エンジン
7の出力は,従来普通のように,スロットルレバー(図
示せず)によって制御されるものである。
In any of the above operations, the output of the engine 7 is controlled by a throttle lever (not shown) as in the conventional case.

【0035】ところで上記のように,走行,後進,耕耘
作業及び車輪自由解放の制御を一本の操作レバー26に
より容易に行い,しかも走行時及び耕耘作業時には,操
作レバー26をニュートラル位置Nから前方Fに向かっ
てシフトし,後進時には,それらとは反対の後方Bに向
かってシフトするので,上記各運転操作を的確に行うこ
とができて,前後進の誤操作防止に寄与し得る。
By the way, as described above, the control of the running, the backward movement, the tilling operation and the free release of the wheels can be easily performed by one operating lever 26. In addition, during the running and the tilling operation, the operating lever 26 is moved forward from the neutral position N. Since the vehicle shifts toward F and shifts toward the rear B, which is the opposite direction when the vehicle moves backward, each of the above-described driving operations can be performed accurately, which can contribute to preventing erroneous operation of moving forward and backward.

【0036】本発明は,上記実施例に限定されるもので
はなく,その要旨を逸脱しない範囲で種々の設計変更が
可能である。例えば,車輪自由解放時の操作レバー26
のシフト方向は,後進時と同様に後方とすることもでき
る。
The present invention is not limited to the above-described embodiment, and various design changes can be made without departing from the gist of the present invention. For example, the operation lever 26 when the wheels are released freely
Can be set backward as in reverse.

【0037】[0037]

【発明の効果】以上のように本発明の第1の特徴によれ
ば,機体に単一の操作レバーを,これが機体の左右方向
に沿うセレクト経路と,機体の前後方向に沿うシフト経
路とを移動し得るように取付け,セレクト経路には走行
位置及び耕耘作業位置を並設し,シフト経路には中間点
にニュートラル位置を設け,操作レバーを走行位置にお
いてニュートラル位置から前方へシフトすると車輪が前
進駆動され,操作レバーを耕耘作業位置において前方へ
シフトすると車輪及びロータリ作業機が駆動され,操作
レバーを後進位置において後方へシフトすると車輪が後
進駆動されるようにしたので,走行,後進及び耕耘作業
の制御を単一の操作レバーにより容易に行うことがで
き,作業者の疲労軽減に有効であり,しかも走行時及び
耕耘作業時には,操作レバーをニュートラル位置から前
方に向かってシフトし,後進時には,それらとは反対の
後方に向かってシフトするので,上記各運転操作を的確
に行うことができ,前後進の誤操作防止にも有効であ
る。
As described above, according to the first aspect of the present invention, a single operation lever is provided on the fuselage to select a selection route along the left-right direction of the aircraft and a shift route along the front-rear direction of the aircraft. It is mounted so that it can be moved, the running position and the tilling work position are arranged side by side on the select route, the neutral position is provided at the intermediate point on the shift route, and the wheel moves forward when the operating lever is shifted forward from the neutral position in the running position When the operating lever is shifted forward in the tilling work position, the wheels and the rotary work machine are driven. When the operating lever is shifted backward in the reverse position, the wheels are driven in reverse. Control can be easily performed with a single operating lever, which is effective in reducing operator fatigue. The lever shifts forward from the neutral position and shifts backward when reverse, so that each of the above-mentioned driving operations can be performed accurately, and it is also effective in preventing erroneous operation when moving forward and backward. .

【0038】また本発明の第2の特徴によれば,セレク
ト経路には走行位置及び耕耘作業位置と並んで車輪自由
解放位置を設け,操作レバーを車輪自由解放位置におい
て前方又は後方へシフトすると車輪への動力伝達が遮断
されるようにしたことを第2の特徴とする。
According to a second feature of the present invention, a free wheel release position is provided in the select route along with the running position and the tilling work position, and when the operation lever is shifted forward or backward in the free wheel release position, the wheel is released. The second feature is that power transmission to the motor is cut off.

【0039】この第2の特徴によれば,走行,後進及び
耕耘作業のみならず,車輪自由解放の制御をも同一の操
作レバーをもって行うことができ,操作性の向上に寄与
し得る。
According to the second feature, not only the running, the backward movement, and the tilling work, but also the control of the free release of the wheels can be performed with the same operating lever, which can contribute to the improvement of the operability.

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

【図1】本発明の運転操作装置を備えた動力耕耘機の側
面図。
FIG. 1 is a side view of a power cultivator equipped with a driving operation device of the present invention.

【図2】上記運転操作装置の側面図。FIG. 2 is a side view of the driving operation device.

【図3】図2の3−3線断面図(走行時)。FIG. 3 is a sectional view taken along line 3-3 in FIG. 2 (during running).

【図4】図3の要部拡大図。FIG. 4 is an enlarged view of a main part of FIG. 3;

【図5】後進時の作用説明図。FIG. 5 is an explanatory diagram of the operation when the vehicle is moving backward.

【図6】耕耘作業時の作用説明図。FIG. 6 is an explanatory view of an operation during a tilling operation.

【図7】車輪自由解放時の作用説明図。FIG. 7 is an explanatory diagram of the operation when the wheels are freely released.

【図8】図3の8−8線断面図。FIG. 8 is a sectional view taken along line 8-8 in FIG. 3;

【図9】図3の9−9線断面図。FIG. 9 is a sectional view taken along line 9-9 of FIG. 3;

【図10】図3の10矢視図。FIG. 10 is a view taken in the direction of arrow 10 in FIG. 3;

【符号の説明】[Explanation of symbols]

B・・・・後方 C・・・・耕耘作業位置 D・・・・走行位置 F・・・・前方 N・・・・ニュートラル位置 R・・・・後進位置 Se・・・セレクト経路 Sh・・・シフト経路 T・・・・動力耕耘機 W・・・・車輪自由解放位置 1・・・・機体 13・・・車輪 18・・・ロータリ作業機 24・・・運転操作装置 26・・・操作レバー B ··· Rear C · · · Tilling work position D · · · · travel position F · · · · · N · · · neutral position R · · · · reverse position Se · select path Sh · · · · Shift path T · · · Power tiller W · · · · Wheel free release position 1 · · · · Body 13 · · · Wheel 18 · · · Rotary work machine 24 · · · operation operation device 26 · · · operation lever

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 機体(1)に単一の操作レバー(26)
を,これが機体(1)の左右方向に沿うセレクト経路
(Se)と,機体(1)の前後方向に沿うシフト経路
(Sh)とを移動し得るように取付け,セレクト経路
(Se)には走行位置(D)及び耕耘作業位置(C)を
並設し,シフト経路(Sh)には中間点にニュートラル
位置(N)を設け,操作レバー(26)を走行位置
(D)においてニュートラル位置(N)から前方(F)
へシフトすると車輪(13)が前進駆動され,操作レバ
ー(26)を耕耘作業位置(C)において前方(F)へ
シフトすると車輪(13)及びロータリ作業機(18)
が駆動され,操作レバー(26)を後進位置(R)にお
いて後方(B)へシフトすると車輪(13)が後進駆動
されるようにしたことを特徴とする,動力耕耘機の運転
操作装置。
1. A single operating lever (26) on a fuselage (1)
Is mounted so that it can move a select route (Se) along the left-right direction of the body (1) and a shift route (Sh) along the front-rear direction of the body (1), and travel on the select route (Se). The position (D) and the tilling work position (C) are juxtaposed, the shift path (Sh) is provided with a neutral position (N) at an intermediate point, and the operating lever (26) is moved to the neutral position (N) at the traveling position (D). ) From the front (F)
When the wheel (13) is shifted forward, the wheel (13) is driven forward, and when the operating lever (26) is shifted forward (F) in the tilling operation position (C), the wheel (13) and the rotary working machine (18) are shifted.
The driving operation device of the power cultivator, wherein the wheel (13) is driven backward when the operating lever (26) is shifted rearward (B) in the reverse position (R).
【請求項2】 請求項1記載の動力耕耘機の運転操作装
置において,セレクト経路(Se)には走行位置(D)
及び耕耘作業位置(C)と並んで車輪自由解放位置
(W)を設け,操作レバー(26)を車輪自由解放位置
(W)において前方(F)又は後方(B)へシフトする
と車輪(13)への動力伝達が遮断されるようにしたこ
とを特徴とする,動力耕耘機の運転操作装置。
2. A driving operation device for a power cultivator according to claim 1, wherein the traveling position (D) is located on the select route (Se).
A wheel free release position (W) is provided alongside the tilling work position (C) and the operation lever (26) is shifted forward (F) or rearward (B) at the wheel free release position (W) to produce a wheel (13). Power cultivator operation control device, characterized in that power transmission to the power cultivator is cut off.
JP34640599A 1999-12-06 1999-12-06 Power tiller operation control device Expired - Fee Related JP4176265B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34640599A JP4176265B2 (en) 1999-12-06 1999-12-06 Power tiller operation control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34640599A JP4176265B2 (en) 1999-12-06 1999-12-06 Power tiller operation control device

Publications (2)

Publication Number Publication Date
JP2001161103A true JP2001161103A (en) 2001-06-19
JP4176265B2 JP4176265B2 (en) 2008-11-05

Family

ID=18383210

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34640599A Expired - Fee Related JP4176265B2 (en) 1999-12-06 1999-12-06 Power tiller operation control device

Country Status (1)

Country Link
JP (1) JP4176265B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010263826A (en) * 2009-05-14 2010-11-25 Mitsubishi Agricult Mach Co Ltd Walking-type agricultural implement
CN103697158A (en) * 2013-12-24 2014-04-02 华国洋 Stopper device for rotary cultivator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010263826A (en) * 2009-05-14 2010-11-25 Mitsubishi Agricult Mach Co Ltd Walking-type agricultural implement
CN103697158A (en) * 2013-12-24 2014-04-02 华国洋 Stopper device for rotary cultivator

Also Published As

Publication number Publication date
JP4176265B2 (en) 2008-11-05

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