JPH0558175A - Gear shift operating device for mobile agricultural machine and the like - Google Patents
Gear shift operating device for mobile agricultural machine and the likeInfo
- Publication number
- JPH0558175A JPH0558175A JP22724091A JP22724091A JPH0558175A JP H0558175 A JPH0558175 A JP H0558175A JP 22724091 A JP22724091 A JP 22724091A JP 22724091 A JP22724091 A JP 22724091A JP H0558175 A JPH0558175 A JP H0558175A
- Authority
- JP
- Japan
- Prior art keywords
- shifter
- shaft
- arm
- gear
- arms
- 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
Links
Landscapes
- Arrangement Of Transmissions (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、移動農機等の変速操
作装置に関し、ハンドトラクタや、ハンド管理作業機に
利用できる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speed change device for mobile agricultural machines and the like, and can be used for a hand tractor and a hand management work machine.
【0002】[0002]
【従来の技術、及び発明が解決しようとする課題】ハン
ドトラクタ等の変速操作レバーは、ミッションケースの
左右一側から、後方の操作ハンドルへ向けて迂回するよ
うに湾曲乃至屈曲させることが多く、作業中に作物等に
接触し易く、簡潔的でなく、操作円滑に行われ難い。2. Description of the Related Art A gear shift operating lever such as a hand tractor is often bent or bent from one side of the transmission case to the rear operating handle so as to be detoured. It is easy to come into contact with crops, etc. during work, not simple, and difficult to operate smoothly.
【0003】[0003]
【課題を解決するための手段】この発明は、ミッション
ケース1の上面側に、上下方向で傾斜揺動自在の操作軸
2を設け、この操作軸2の上端には操作レバー3を設け
ると共に、下端には前後一対の操作アーム4,5を突設
し、この一方の操作アーム4を走行変速シフタ6のシフ
タアーム7と係合し、他方の操作アーム5を作業変速シ
フタ8のシフタアーム9と係合可能にしてなる移動農機
等の変速操作位置の構成とする。According to the present invention, an operation shaft 2 tiltably swingable in the vertical direction is provided on the upper surface side of a mission case 1, and an operation lever 3 is provided at the upper end of the operation shaft 2. A pair of front and rear operation arms 4 and 5 are provided at the lower end so that one of the operation arms 4 is engaged with the shifter arm 7 of the traveling speed shifter 6 and the other operation arm 5 is engaged with the shifter arm 9 of the work speed shifter 8. The shift operation position of a mobile agricultural machine etc. will be configured so that it can be combined.
【0004】[0004]
【作用、及び発明の効果】操作レバー3によって操作軸
2を所定の位置へ揺動操作することによって、この操作
軸2下端の操作アーム4,5が、この操作軸2のミッシ
ョンケース1に対する枢支部の回りに揺動されて、この
操作アーム4,5の回動圏内に係合されるシフタアーム
4,5が作動されて、走行変速シフタ6、又は作業変速
シフタ8による変速が行われる。By operating the operating shaft 2 by swinging the operating shaft 2 to a predetermined position by means of the operating lever 3, the operating arms 4, 5 at the lower end of the operating shaft 2 are pivoted with respect to the mission case 1 of the operating shaft 2. The shifter arms 4 and 5 that are swung around the supporting portion and are engaged in the rotation range of the operation arms 4 and 5 are actuated, and the travel shift shifter 6 or the work shift shifter 8 shifts.
【0005】このように操作軸2がミッションケース1
の上面側で傾斜揺動されるものであるから、これに連結
する操作レバー3は、上下方向へ湾曲乃至屈曲するも、
横側への曲りを少なくして、作物等の邪魔にならないよ
うにすることができ、操作アーム4,5も該操作軸2と
一体的に揺動する構成であるから、構成は簡潔で、操作
を正確に円滑に行い得る。As described above, the operation shaft 2 has the mission case 1
Since it is tilted and oscillated on the upper surface side, the operation lever 3 connected to this is bent or bent in the vertical direction,
The lateral bending can be reduced so as not to interfere with crops and the like, and the operating arms 4 and 5 also swing integrally with the operating shaft 2, so that the configuration is simple and The operation can be performed accurately and smoothly.
【0006】[0006]
【実施例】伝動ケースが側面視でヘ字状に形成されて、
前部に走行伝動ケース10を、後部に作業伝動ケース1
1を、又これらの間の上部にミッションケース1を形成
する。走行伝動ケース10の前側にはエンジン12を搭
載するエンジン台13を取付け、ミッションケース1部
からは後方上部に向けて操縦ハンドル16を突設してい
る。このミッションケース1の上部に操作軸2で支持す
る操作レバー3は、該操縦ハンドル16の上部に沿うよ
うに設けている。該走行伝動ケース10の下端部には車
軸14を左右へ突出させて車輪を取付けることができ、
作業伝動ケース10の下端部には作業軸15を左右へ突
出させて、耕耘爪や除草爪等の各種作業器を取付けるこ
とができる。[Embodiment] The transmission case is formed in a V shape in a side view,
A front transmission case 10 and a rear work transmission case 1
1 and the mission case 1 is formed in the upper part between them. An engine base 13 for mounting an engine 12 is attached to the front side of the traveling transmission case 10, and a steering handle 16 is provided so as to project from the mission case 1 portion toward the upper rear part. The operation lever 3 supported by the operation shaft 2 on the upper part of the mission case 1 is provided along the upper part of the steering handle 16. Wheels can be attached to the lower end of the traveling transmission case 10 by protruding the axle 14 to the left and right,
At the lower end of the work transmission case 10, the work shaft 15 can be projected to the left and right, and various working devices such as a plowing claw and a weeding claw can be attached.
【0007】操作軸2は、ミッションケース1の上面側
の中央部に位置して、ボール受体17によって前後左右
の方向に傾斜自在に支持され、この操作軸2の上端に操
作レバー3が取付けられる。下端部のミッションケース
1内には前後方向の操作アーム4,5が固着されてい
る。又、ミッションケース1の上側後部にはシフトパネ
ル18が取付けられ、操作レバー3の基部を案内するシ
フト溝19〜21が後面視工字形に形成されている。The operation shaft 2 is located in the central portion on the upper surface side of the mission case 1 and is supported by a ball receiver 17 so as to be tiltable in the front, rear, left and right directions, and the operation lever 3 is attached to the upper end of the operation shaft 2. Be done. Front and rear operation arms 4 and 5 are fixed in the lower end of the mission case 1. Further, a shift panel 18 is attached to the upper rear portion of the transmission case 1, and shift grooves 19 to 21 for guiding the base portion of the operation lever 3 are formed in a rear view letter-shape.
【0008】ミッションケース1内の軸の配置、及びギ
ヤ配置については、エンジン12の出力軸22からベル
ト伝動によって駆動される入力軸23を上端部として、
前記走行伝動ケース10側へ向うように、走行変速軸2
4、減速軸25、及び走行伝動ケース10下端部の車軸
14等が軸受けされる。又、該入力軸23から作業伝動
ケース11側へ向うように、被変速軸26、作業変速軸
28、及び作業伝動ケース11下端部の作業軸15等が
軸受けされる。又、該被変速軸26と作業変速軸28と
の間の下側には被変速軸27が軸装されている。Regarding the arrangement of the shafts and gears in the mission case 1, the input shaft 23 driven by the belt transmission from the output shaft 22 of the engine 12 is used as the upper end portion.
The traveling speed change shaft 2 faces toward the traveling transmission case 10 side.
4, the reduction shaft 25, the axle 14 at the lower end of the traveling transmission case 10, and the like are supported. Further, the speed-changed shaft 26, the work speed-changing shaft 28, the work shaft 15 at the lower end of the work power-transmitting case 11 and the like are borne so as to face the work transmission case 11 side from the input shaft 23. A speed-change shaft 27 is mounted below the speed-change shaft 26 and the work speed-change shaft 28.
【0009】走行変速は、走行変速軸24上の変速ギヤ
29のシフト移動によって、被変速軸27上のギヤ30
との間の噛合で前進一速F1が得られる。又、入力軸2
3上のギヤ32との噛合で前進二速F2が得られ、被変
速軸26上のバックギヤ33との噛合によって後進速R
が得られる。これら各シフト位置間の変速ギヤ29の位
置では、中立位置となりいずれのギヤへも噛合しない。The traveling gear shift is performed by the shift movement of the transmission gear 29 on the traveling gear shift shaft 24 by the gear shift on the gear-shifted shaft 27.
The first forward speed F1 is obtained by the engagement between Also, input shaft 2
The second forward speed F2 is obtained by meshing with the gear 32 on the gear No. 3 and the reverse speed R is obtained by meshing with the back gear 33 on the speed-changed shaft 26.
Is obtained. The position of the transmission gear 29 between these shift positions is a neutral position and does not mesh with any gear.
【0010】前進一速F1では、入力軸23→ギヤ31
→ギヤ32→被変速軸26→ギヤ34→ギヤ35→被変
速軸27→ギヤ30→変速ギヤ29→走行変速軸24→
ギヤ36→ギヤ37→減速軸25→スプロケット38→
チエン39→スプロケット40→差動装置41等の経路
を経て車軸14を伝動する構成としている。前進二速F
2は、入力軸23→ギヤ31→変速ギヤ29→変速軸2
4の経路を経て、上記変速軸24以下と同様に車軸14
へ伝動される。後進速Rは、入力軸23→ギヤ31→ギ
ヤ32→被変速軸26までは、上記前進一速F1と同経
路であるが、これよりバックギヤ33を介して変速ギヤ
29へ伝動される点が、その前進一速F1と異なる。In the first forward speed F1, the input shaft 23 → the gear 31
→ gear 32 → shifted shaft 26 → gear 34 → gear 35 → shifted shaft 27 → gear 30 → shift gear 29 → travel shifting shaft 24 →
Gear 36 → Gear 37 → Reduction shaft 25 → Sprocket 38 →
It is configured such that the axle 14 is transmitted via a path such as the chain 39 → sprocket 40 → differential device 41. Forward second speed F
2 is the input shaft 23 → gear 31 → shift gear 29 → shift shaft 2
4 through the same way as the transmission shaft 24 and below.
Is transmitted to. The reverse speed R is in the same path as the first forward speed F1 from the input shaft 23 to the gear 31 to the gear 32 to the speed-changed shaft 26, but from this point, the reverse speed R is transmitted to the speed change gear 29 via the back gear 33. , Different from the forward first speed F1.
【0011】作業軸15は、正転と逆転とに切換えられ
る構成であって、伝動比は一定である。作業変速軸28
上の変速ギヤ42を、前記被変速軸26上のバックギヤ
33に噛合させることによって、入力軸23→ギヤ31
→ギヤ32→被変速軸26→バックギヤ33→変速ギヤ
42→作業変速軸28→スプロケット43→チエン44
→スプロケット45→作業軸15の正転伝動経路を経
る。又、逆転時は、変速ギヤ42をギヤ30に噛合させ
ることによって、該被変速軸26以降は、ギヤ34→ギ
ヤ35→被変速軸27→ギヤ30→変速ギヤ42を経
て、更に上記変速軸28以下と同様にして作業軸15へ
伝動される。The work shaft 15 has a structure in which it can be switched between normal rotation and reverse rotation, and the transmission ratio is constant. Work gear shift shaft 28
By engaging the upper transmission gear 42 with the back gear 33 on the transmission shaft 26, the input shaft 23 → the gear 31
→ gear 32 → shifted shaft 26 → back gear 33 → shift gear 42 → work shifting shaft 28 → sprocket 43 → chain 44
→ Sprocket 45 → Work shaft 15 goes through the normal rotation transmission path. Further, at the time of reverse rotation, the transmission gear 42 is meshed with the gear 30, so that after the transmission shaft 26, the transmission shaft 26 is further passed through the gear 34, the gear 35, the transmission shaft 27, the gear 30, the transmission gear 42, and further. It is transmitted to the work shaft 15 in the same manner as 28 and below.
【0012】なお、この変速ギヤ42による正逆転の切
換のみではなく、伝動比を変更できる構成とするもよ
い。46は前記差動装置41の差動を停止できるデフロ
ックの操作機構、47は車輪である。ミッションケース
1内の前部のシフタステー48に、前記変速ギヤ29を
シフトするための走行変速シフタ6が、クリップボール
等によって位置決めされながら移動自在に設けられ、こ
の走行変速シフタ6上のシフタアーム7に、前記操作ア
ーム4が係合しうる構成としている。又、後部のシフタ
ステー49には、変速ギヤ42をシフトするための作業
変速シフタ8が設けられ、この作業変速シフタ8上のシ
フタアーム9に操作アーム5が係合しうる構成としてい
る。Incidentally, not only the forward / reverse switching by the transmission gear 42 but also the transmission ratio may be changed. Reference numeral 46 is a differential lock operating mechanism capable of stopping the differential of the differential device 41, and 47 is a wheel. A shift gear shifter 6 for shifting the shift gear 29 is movably provided while being positioned by a clip ball or the like on a shifter stay 48 in the front of the transmission case 1, and a shifter arm 7 on the shift gear shifter 6 is provided. The operation arm 4 can be engaged. Further, the rear shifter stay 49 is provided with a work shift shifter 8 for shifting the shift gear 42, and the operation arm 5 can be engaged with the shifter arm 9 on the work shift shifter 8.
【0013】これら両シフタアーム7,9と操作アーム
4,5との関係は、操作軸2の前後方向の傾斜によっ
て、前側の操作アーム4がシフタアーム7に係合される
と、後側の操作アーム5がシフタアーム9から外れるよ
うに、可逆的に係合、離脱される構成としている。この
ように操作アーム4,5をシフタアーム7,9に係合さ
せた状態で、操作軸2を軸心回りに回動することより、
操作アーム4,5を回動して、シフタアーム7、又は9
をシフタステー48,49に沿わせてシフトすることが
できる。The relationship between the shifter arms 7 and 9 and the operating arms 4 and 5 is such that when the front operating arm 4 is engaged with the shifter arm 7 due to the front-back inclination of the operating shaft 2, the rear operating arm is moved. 5 is reversibly engaged and disengaged so as to be disengaged from the shifter arm 9. By rotating the operation shaft 2 around the axis while the operation arms 4 and 5 are engaged with the shifter arms 7 and 9, as described above,
The operation arms 4 and 5 are rotated to move the shifter arm 7 or 9
Can be shifted along the shifter stays 48, 49.
【0014】各シフタステー48,49には牽制板5
0,51が、これらのシフタステー48,49回りに回
動自在に設けられて、この牽制板50,51上部におい
て、シフタステー48,49方向に平行状の案内溝5
2,53が形成され、この案内溝52,53に前記対向
せる操作アーム4,5が挿通されて、シフト時摺動自在
の構成となっている。この牽制板50,51には、左右
一対の牽制ピン54,55が、シフタアーム7,9側へ
突出され、操作アーム4,5の案内溝52,53におけ
る係合によって上下に回動される。操作アーム4,5が
下方へ回動されるときは、対向のシフタアーム7,9に
係合されて、これと同時に回動される牽制板50,51
の牽制ピン54,55が、これらシフタアーム7,9か
ら離れるようになる。しかしながら、操作アーム4,5
が上方へ回動されるときは、牽制板50,51の牽制ピ
ン54,55が、シフタアーム7,9の左右両側に接近
して、このシフタアーム7,9が左右方向へ移動しよう
としてもこの牽制ピン54,55によって係止牽制され
る。A check plate 5 is provided on each shifter stay 48, 49.
0 and 51 are rotatably provided around these shifter stays 48 and 49, and guide grooves 5 parallel to the shifter stays 48 and 49 are provided above the check plates 50 and 51.
2 and 53 are formed, and the operation arms 4 and 5 facing each other are inserted into the guide grooves 52 and 53 so that the guide arms 52 and 53 are slidable during a shift. A pair of left and right check pins 54 and 55 are projected on the shift plates 50 and 51 toward the shifter arms 7 and 9, and are vertically rotated by engagement of the operation arms 4 and 5 in the guide grooves 52 and 53. When the operation arms 4 and 5 are rotated downward, the check plates 50 and 51 that are engaged with the shifter arms 7 and 9 facing each other and are simultaneously rotated.
The restraint pins 54 and 55 of the above are separated from the shifter arms 7 and 9. However, the operating arms 4, 5
Is rotated upward, the check pins 54, 55 of the check plates 50, 51 approach the left and right sides of the shifter arms 7, 9 and even if the shifter arms 7, 9 try to move in the left and right directions, Locking and restraining is performed by the pins 54 and 55.
【0015】操作レバー3をシフタ溝20に位置してい
るとき、シフタアーム7は前進一速F1にあり、シフタ
アーム9は中立位置Nにある。しかし、操作アーム4,
5はいずれもこれらシフタアーム7,9とは係合してい
ない。従って、この位置で操作レバー3を左右へ操作し
ても変速はできない。しかし、この状態から作業部を伝
動するときは、操作レバー3を下側のシフト溝21の中
立位置Nへ移動させて、正転伝動させたいときは、この
シフト溝21の正転位置Aへシフトすることによって、
操作アーム5がシフタアーム9に係合し、牽制板51の
下動によって、牽制ピン55がシフタアーム9の牽制位
置から下側に外れ、シフタアーム4は上動してシフタア
ーム7から外れたままの状態となるが、牽制ピン54に
よって左右方向の移動を牽制されている。このとき、走
行速は前進一速F1で、作業回転は正回転Aで作業され
る。又、この作業回転を逆回転Bにするときは、操作レ
バー3を正回転Aから中立位置Nを越えて逆回転Bにシ
フトすればよい。When the operating lever 3 is positioned in the shifter groove 20, the shifter arm 7 is in the first forward speed F1 and the shifter arm 9 is in the neutral position N. However, the operation arm 4,
None of these 5 engages with these shifter arms 7 and 9. Therefore, even if the operation lever 3 is operated to the left or right at this position, gear shifting is not possible. However, when transmitting the working portion from this state, the operation lever 3 is moved to the neutral position N of the lower shift groove 21, and when the normal rotation transmission is desired, the normal position A of the shift groove 21 is transmitted. By shifting
When the operation arm 5 is engaged with the shifter arm 9 and the restraint plate 51 is moved downward, the restraint pin 55 is disengaged downward from the restraint position of the shifter arm 9, and the shifter arm 4 is moved upward to remain disengaged from the shifter arm 7. However, the restraint pin 54 restrains the lateral movement. At this time, the traveling speed is the forward first speed F1 and the work rotation is the forward rotation A. When the working rotation is set to the reverse rotation B, the operation lever 3 may be shifted from the normal rotation A to the reverse rotation B beyond the neutral position N.
【0016】高速で路上走行するときは操作レバー3を
シフト溝19の前進二速F2へ操作し、後進操作では後
進速Rの位置へ操作する。これらの位置では、操作アー
ム4がシフタアーム7に係合されているが、反対側の操
作アーム5はシフタアーム9から外れて、牽制ピン55
がこのシフタアーム9の左右移動を行わせないように牽
制している。When traveling on the road at a high speed, the operating lever 3 is operated to the second forward speed F2 in the shift groove 19, and in the reverse operation it is moved to the reverse speed R position. In these positions, the operation arm 4 is engaged with the shifter arm 7, but the operation arm 5 on the opposite side is disengaged from the shifter arm 9 and the check pin 55 is released.
Controls the shifter arm 9 so that it does not move to the left and right.
図はこの発明の一実施例を示す。 The figure shows an embodiment of the invention.
【図1】要部の拡大側面図。FIG. 1 is an enlarged side view of a main part.
【図2】その展開平断面図。FIG. 2 is a developed plan sectional view thereof.
【図3】伝動機構の展開平断面図。FIG. 3 is a developed plan sectional view of a transmission mechanism.
【図4】一部の正断面図。FIG. 4 is a partial front sectional view.
【図5】全体側面図。FIG. 5 is an overall side view.
1 ミッションケース 2 操作軸 3 操作レバー 4 操作アーム 5 操作アーム 6 走行変速シフタ 7 シフタアーム 8 作業変速シフタ 9 シフタアーム 1 mission case 2 operation shaft 3 operation lever 4 operation arm 5 operation arm 6 traveling speed shifter 7 shifter arm 8 work speed shifter 9 shifter arm
Claims (1)
向で傾斜揺動自在の操作軸2を設け、この操作軸2の上
端には操作レバー3を設けると共に、下端には前後一対
の操作アーム4,5を突設し、この一方の操作アーム4
を走行変速シフタ6のシフタアーム7と係合し、他方の
操作アーム5を作業変速シフタ8のシフタアーム9と係
合可能にしてなる移動農機等の変速操作位置。1. An operation shaft 2 tiltably swingable in the vertical direction is provided on the upper surface side of a mission case 1, an operation lever 3 is provided at the upper end of the operation shaft 2, and a pair of front and rear operation arms is provided at the lower end. 4 and 5 are provided so that one of the operation arms 4 is provided.
Is engaged with the shifter arm 7 of the traveling speed shifter 6, and the other operation arm 5 can be engaged with the shifter arm 9 of the work speed shifter 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22724091A JPH0558175A (en) | 1991-09-06 | 1991-09-06 | Gear shift operating device for mobile agricultural machine and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22724091A JPH0558175A (en) | 1991-09-06 | 1991-09-06 | Gear shift operating device for mobile agricultural machine and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0558175A true JPH0558175A (en) | 1993-03-09 |
Family
ID=16857715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22724091A Pending JPH0558175A (en) | 1991-09-06 | 1991-09-06 | Gear shift operating device for mobile agricultural machine and the like |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0558175A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US5631107A (en) * | 1994-02-18 | 1997-05-20 | Nippondenso Co., Ltd. | Method for producing optical member |
JP2010190322A (en) * | 2009-02-18 | 2010-09-02 | Kubota Corp | Walking type working machine |
-
1991
- 1991-09-06 JP JP22724091A patent/JPH0558175A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5631107A (en) * | 1994-02-18 | 1997-05-20 | Nippondenso Co., Ltd. | Method for producing optical member |
JP2010190322A (en) * | 2009-02-18 | 2010-09-02 | Kubota Corp | Walking type working machine |
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