JP2000025470A - Travel transmission device for walking work machine - Google Patents
Travel transmission device for walking work machineInfo
- Publication number
- JP2000025470A JP2000025470A JP10195566A JP19556698A JP2000025470A JP 2000025470 A JP2000025470 A JP 2000025470A JP 10195566 A JP10195566 A JP 10195566A JP 19556698 A JP19556698 A JP 19556698A JP 2000025470 A JP2000025470 A JP 2000025470A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- speed
- gear
- clutch
- 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
Links
Landscapes
- Harvester Elements (AREA)
- Arrangement Of Transmissions (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、畦草刈機などの歩
行型作業機の走行伝動装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling transmission for a walking type working machine such as a mower.
【０００２】[0002]
【従来の技術】この種の歩行型作業機の走行伝動装置に
は、低速走行を行うためにエンジンから走行装置への伝
動系に減速装置を組み込んだものがある。そのようなも
のとして、従来では、伝動系に、クラッチ、変速装置、
減速装置とその記載順に直列に介装したものがある。2. Description of the Related Art As a traveling transmission device of a walking type working machine of this type, there is a traveling transmission device in which a reduction gear is incorporated in a transmission system from an engine to a traveling device in order to perform low-speed traveling. As such, in the past, clutches, transmissions,
There are reduction gears and those that are interposed in series in the order described.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記従来の技
術によるときは、クラッチを切り操作して機体を手押し
移動させる際、走行装置が減速装置及び変速装置に繋が
っていてそれらを作動させながらの移動となるから、減
速装置及び変速装置が移動抵抗として作用し、その結
果、手押し移動に大変な労力が必要であった。However, according to the above-mentioned conventional technology, when the clutch is disengaged and the body is pushed by hand, the traveling device is connected to the speed reduction device and the transmission, and the traveling device is operated while operating them. Because of the movement, the reduction gear and the transmission act as a movement resistance, and as a result, a large amount of labor is required for the manual movement.
【０００４】本発明の目的は、手押し移動時における労
力を軽減する点にある。[0004] It is an object of the present invention to reduce the labor during manual pushing movement.
【０００５】[0005]
【課題を解決するための手段】請求項１に係る本第１発
明の特徴、作用、効果は次の通りである。The features, functions and effects of the first aspect of the present invention are as follows.
【０００６】〔特徴〕エンジンから走行装置への伝動系
に、変速装置と減速装置とクラッチとをその記載順に直
列に介装し、前記変速装置として中立状態を現出保持可
能なものを設けてある点にある。[Features] In the transmission system from the engine to the traveling device, a transmission, a reduction gear, and a clutch are interposed in series in the stated order, and the transmission is provided with a neutral state that can be maintained. At one point.
【０００７】〔作用〕本第１発明によるときは、クラッ
チを変速装置と減速装置との伝動下手側に介装してある
から、クラッチを切って手押し移動する際、そのクラッ
チの切りにより走行装置の変速装置及び減速装置への連
動を断つことができ、変速装置及び減速装置が手押し移
動時に作動することを防止して、手押し移動の抵抗とな
ることを防止することができる。According to the first aspect of the present invention, the clutch is interposed on the lower transmission side of the transmission and the speed reducer, so that when the clutch is disengaged and pushed by hand, the traveling device is disengaged by disengaging the clutch. Can be disconnected from the transmission and the reduction gear, and the transmission and the reduction gear can be prevented from operating at the time of manual movement, thereby preventing resistance to manual movement.
【０００８】しかも、トラックの荷台から歩み板を用い
て歩行型作業機を降ろす際に、クラッチを切って移動さ
せると、変速装置及び減速装置による移動抵抗がないこ
とで作業機を重量に抗して支えるために作業者にかける
負担を大きくする。上記の点に着目して、変速装置とし
て中立状態を現出保持可能なものを設けて、作業機を降
ろす場合には、クラッチを入り操作する一方、変速装置
を中立状態にすることにより、走行装置を減速装置及び
変速装置に連動させて、それら減速装置及び変速装置を
移動抵抗として作用させることができるようにしてある
から、特別なブレーキを設けることなく、作業機を降ろ
す場合の移動抵抗を大きくして、作業者にかける負担を
少なくすることができる。In addition, when the walk-type work machine is lowered from the truck bed using the step board, the clutch is disengaged and moved, and there is no movement resistance due to the transmission and the reduction gear. Increase the burden on workers to support them. Focusing on the above points, when the transmission is provided with a device capable of displaying and holding a neutral state, and when the work machine is lowered, the clutch is operated and the transmission is set to the neutral state to drive the vehicle. Since the device is linked to the speed reducer and the transmission, the speed reducer and the speed change device can be made to act as movement resistance.Therefore, without providing a special brake, the movement resistance when lowering the work machine is reduced. By increasing the size, the burden on the operator can be reduced.
【０００９】〔効果〕従って、本第１発明によれば、手
押し移動を軽快に行え、しかも、それでいて、トラック
の荷台から作業機を降ろす場合の作業性を良好なものに
できるようになった。[Effect] Therefore, according to the first aspect of the present invention, it is possible to lightly perform the manual pushing movement, and to improve the workability when the working machine is unloaded from the truck bed.
【００１０】請求項２に係る本第２発明の特徴、作用、
効果は次の通りである。According to the second aspect of the present invention, the features, actions,
The effects are as follows.
【００１１】〔特徴〕上記本第１発明の特徴において、
変速装置を構成するに、伝動軸に複数の伝動ギヤを回転
自在に装着し、従動軸に各伝動ギヤの対応するものに常
時噛み合い連動する従動ギヤを装着し、前記伝動ギヤを
択一的に伝動軸に連動させる連動手段を設けてある点に
ある。[Features] In the features of the first invention,
To constitute a transmission, a plurality of transmission gears are rotatably mounted on a transmission shaft, and a driven gear which is always meshed and linked with a corresponding one of the transmission gears is mounted on a driven shaft, and the transmission gear is selectively used. The point is that interlocking means for interlocking with the transmission shaft is provided.
【００１２】〔作用〕本第２発明によるときは、複数組
の変速用の伝動ギヤと従動ギヤとを常時噛み合い式とし
て、伝動軸を択一的に伝動軸に連動させることにより変
速するようにしてあるから、全部の伝動ギヤを伝動軸に
連動させない中立状態としてクラッチを入り作動させる
ことにより、トラックの荷台から作業機を降ろす際、伝
動ギヤまでを共回り作動させることができ、作業機の降
坂移動に十分な制動力を与えることができる。According to the second aspect of the present invention, a plurality of sets of transmission gears and driven gears are always meshed with each other, and the transmission is shifted by selectively interlocking the transmission shaft with the transmission shaft. Therefore, by moving the clutch into the neutral state where all transmission gears are not linked to the transmission shaft and operating the clutch, when the work machine is unloaded from the truck bed, the transmission gear can be operated in a co-rotating manner. Sufficient braking force can be applied to the descent.
【００１３】〔効果〕従って、本第２発明によれば、ト
ラックの荷台から作業機を降ろす作業性をより一層、優
れたものにできるようになった。[Effect] Therefore, according to the second aspect of the present invention, the workability of lowering the working machine from the bed of the truck can be further improved.
【００１４】請求項３に係る本第３発明の特徴、作用、
効果は次の通りである。According to the third aspect of the present invention, the features, actions,
The effects are as follows.
【００１５】〔特徴〕上記本第１発明や本第２発明の特
徴において、操縦ハンドルの握り部にその握り部と共握
り操作自在なクラッチレバーを設け、クラッチレバーの
共握り操作に伴いクラッチが入り作動するようにクラッ
チレバーとクラッチとを連動させてある点にある。[Features] In the features of the first and second aspects of the present invention, a clutch lever is provided on the grip portion of the steering handle so that the clutch can be operated together with the grip portion. The point is that the clutch lever and the clutch are interlocked so as to be engaged.
【００１６】〔作用〕本第３発明によるときは、クラッ
チレバーの共握り操作に伴いクラッチを入り作動させる
ようにしてあるから、つまり、クラッチを切り付勢して
あるから、手押し移動する際、クラッチを操作する必要
がない。[Operation] In the third aspect of the present invention, the clutch is engaged by the joint gripping operation of the clutch levers, that is, the clutch is disengaged and biased. There is no need to operate the clutch.
【００１７】〔効果〕従って、本第３発明によれば、手
押し移動する際の操作性を良好なものにできるようにな
った。[Effects] Therefore, according to the third aspect of the present invention, it is possible to improve the operability when moving by hand.
【００１８】[0018]
【発明の実施の形態】歩行型作業機の一例である畦草刈
機は、図１〜図３に示すように、走行機体１に、走行路
面の草類を刈り取るとともに機体フレームの一部を構成
する路面刈取装置２を装着し、この路面刈取装置２に法
面の草類を刈り取る法面走行輪３ａ付きの法面刈取装置
３を前後向き軸芯Ｐ１周りに上下揺動自在に連結して構
成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 3, a ridge mower, which is an example of a walk-behind working machine, has a traveling body 1 that cuts grass on a traveling road surface and forms a part of a body frame. The road surface mowing device 2 is mounted, and the road surface mowing device 2 is connected to the road surface mowing device 2 in such a manner that the side surface mowing device 3 with the side running wheel 3a for cutting grass on the side surface is vertically swingable around a longitudinal axis P1. It is configured.
【００１９】走行機体１は、路面刈取装置２の後部に連
結したメインフレーム４に、駆動後車輪５と後方に延び
る左右一対のハンドル杆６Ｌ，６Ｒからなる操縦ハンド
ル６を取り付け、路面刈取装置２の前部に駆動前車輪７
を取り付け、メインフレーム４にエンジン８を搭載して
構成されている。そして、操縦ハンドル６は、機体中心
に対して法面とは反対側にオフセットされており、駆動
後車輪５は、後部ミッションケース９を介してメインフ
レーム４に支持されており、駆動前車輪７は、前車輪軸
へのチェーン伝動装置１０を内装した前部ミッションケ
ース１１を介して路面刈取装置２に支持されており、こ
れら駆動後車輪５と駆動前車輪７とから走行装置１２が
構成されている。なお、駆動後車輪５は、軸芯方向に並
置した二つのタイヤ車輪５Ａから構成されており、駆動
前車輪７は、操向輪であって、作業時には、法面から遠
ざかる方向への操向姿勢に設定され、非作業時には、直
進姿勢に設定されるものである。The traveling body 1 has a main frame 4 connected to a rear portion of the road mowing device 2 and a steering wheel 6 comprising a pair of left and right handle bars 6L, 6R extending rearward after driving, and a rear wheel 5 after driving. Drive front wheel 7 in front of
And the engine 8 is mounted on the main frame 4. The steering handle 6 is offset to the side opposite to the slope with respect to the center of the fuselage. The rear wheels 5 are supported by the main frame 4 via the rear transmission case 9 and the front wheels 7 Are supported by the road surface reaping device 2 via a front transmission case 11 in which a chain transmission device 10 for the front wheel shaft is provided, and a traveling device 12 is constituted by these rear wheels 5 and front wheels 7. ing. The post-drive wheel 5 is composed of two tire wheels 5A juxtaposed in the axial direction, and the front drive wheel 7 is a steered wheel, and is steered in a direction away from the slope during work. The posture is set, and when not working, it is set to the straight traveling posture.
【００２０】前記路面刈取装置２及び法面刈取装置３
は、回転ブレード２Ａ，３Ａの回転で草類を刈り取るも
のであり、法面刈取装置３は、固定の内側部分と、上下
向き軸芯Ｐ２周りに後方に揺動自在な刈り幅調整用の外
側部分とに分割構成されている。The road reaping device 2 and the slope reaping device 3
Cuts grass by rotation of the rotary blades 2A and 3A. The slope cutting device 3 includes a fixed inner portion and an outer portion for adjusting a cutting width that is swingable rearward around a vertical axis P2. It is divided into parts.
【００２１】前記エンジン８から走行装置１２への伝動
系には、変速装置１３と減速装置１４とクラッチ１５と
がその記載順で伝動上手側から下手側に直列に並ぶ状態
に介装されている。変速装置１３・減速装置１４・クラ
ッチ１５は、図４及び図５に示すように、前記後部ミッ
ションケース９に内装されている。In the transmission system from the engine 8 to the traveling device 12, a transmission 13, a reduction gear 14, and a clutch 15 are interposed in a state of being arranged in series from the upper transmission side to the lower transmission side in the stated order. . The transmission 13, the reduction gear 14, and the clutch 15 are housed in the rear transmission case 9, as shown in FIGS. 4 and 5.
【００２２】前記変速装置１３は、図６にも示すよう
に、エンジン８の出力軸８ａにベルト伝動装置１６を介
して連動する伝動軸１７に、低速用・中速用・高速用の
各伝動ギヤＧ１，Ｇ２，Ｇ３を回転自在に装着し、前記
伝動軸１７と平行な従動軸１８に、各伝動ギヤＧ１，Ｇ
２，Ｇ３の対応するものに常時噛み合い連動する低速用
・中速用・高速用の従動ギヤｇ１，ｇ２，ｇ３を従動軸
１８と一体に回転する状態に装着し、低速用の伝動ギヤ
Ｇ１のみを伝動軸１７に連動させる低速状態と、中速用
の伝動ギヤＧ２のみを伝動軸１７に連動させる中速状態
と、高速用の伝動ギヤＧ３のみを伝動軸１７に連動させ
る高速状態と、全部の伝動ギヤＧ１，Ｇ２，Ｇ３を伝動
軸１７に連動させない中立状態とに切り換え自在な連動
手段を設けて構成されている。つまり、連動手段を低速
状態に切り換えることにより伝動軸１７から従動軸１８
に低速伝動し、中速状態に切り換えることにより中速伝
動し、高速状態に切り換えることにより高速伝動し、中
立状態に切り換えることにより伝動を断つように構成さ
れている。As shown in FIG. 6, the transmission 13 is provided with a transmission shaft 17 interlocked with an output shaft 8a of the engine 8 via a belt transmission device 16 for each of low-speed, medium-speed, and high-speed transmissions. Gears G1, G2, and G3 are rotatably mounted, and each transmission gear G1, G is mounted on a driven shaft 18 parallel to the transmission shaft 17.
2 and G3, low-speed, medium-speed, and high-speed driven gears g1, g2, and g3, which are always meshed with the corresponding gears, are mounted so as to rotate integrally with the driven shaft 18, and only the low-speed transmission gear G1 is mounted. A low-speed state in which the transmission gear 17 is linked to the transmission shaft 17, a medium-speed state in which only the medium-speed transmission gear G2 is linked to the transmission shaft 17, and a high-speed state in which only the high-speed transmission gear G3 is linked to the transmission shaft 17. The transmission gears G1, G2, and G3 are provided with interlocking means that can be switched to a neutral state in which the transmission gears G1, G2, and G3 are not interlocked with the transmission shaft 17. That is, by switching the interlocking means to the low speed state, the transmission shaft 17 is moved from the driven shaft 18 to the driven shaft 18.
A low-speed transmission, a medium-speed transmission by switching to a medium-speed state, a high-speed transmission by switching to a high-speed state, and a transmission interruption by switching to a neutral state are configured.
【００２３】前記連動手段は、図７、図８にも示すよう
に、伝動軸１７のうち伝動ギヤＧ１，Ｇ２，Ｇ３を装着
する部分を筒軸に形成し、筒軸部に形成した軸芯方向に
沿った姿勢の溝１９に係合することにより伝動軸１７と
一体に回転する伝動部材２０を筒軸部に軸芯方向に沿っ
て低速位置と高速位置との間で移動自在に内装し、伝動
部材２０が低速位置に位置するときこの伝動部材２０の
うち溝１９よりも半径方向外方に突出する突出片２０ａ
に係合して低速用の伝動ギヤＧ１を伝動部材２０と一体
回転させるキー溝Ｋ１を低速用の伝動ギヤＧ１に形成
し、伝動部材２０が中立位置に位置するとき中速用の伝
動ギヤＧ２に対する前記突出片２０ａの回転を許容す
る、つまり、伝動部材２０から中速用の伝動ギヤＧ２に
伝動させない環状空間２１と、伝動部材２０が中速位置
に位置するとき突出片２０ａに係合して中速用の伝動ギ
ヤＧ２を伝動部材２０と一体回転させるキー溝Ｋ２とを
中速用の伝動ギヤＧ２に形成し、伝動部材２０が高速位
置に位置するとき突出片２０ａに係合して高速用の伝動
ギヤＧ３を伝動部材２０と一体回転させるキー溝Ｋ３を
高速用の伝動ギヤＧ３に形成し、前記伝動部材２０を軸
芯方向に沿って移動させるバネ２２と操作軸２３とを設
け、操作軸２３の位置を規制することにより伝動部材２
０を低速位置・中速位置・高速位置に保持するボールデ
テント２４を設けて構成されている。つまり、操作軸２
３を軸芯方向に沿って高速位置側に移動させることによ
り、バネ２２の付勢力に抗して伝動部材２０を低速位置
・中立位置・中速位置・高速位置と順に移動させ、操作
軸２３を軸芯方向に沿って低速位置側に移動させること
により、バネ２２の付勢力で伝動部材２０を高速位置・
中速位置・中立位置・低速位置と順に移動させるように
構成されている。As shown in FIGS. 7 and 8, the interlocking means forms a portion of the transmission shaft 17 on which the transmission gears G1, G2, G3 are mounted on a cylindrical shaft, and a shaft center formed on the cylindrical shaft portion. A transmission member 20 that rotates integrally with the transmission shaft 17 by engaging with the groove 19 in a posture along the direction is provided inside the cylindrical shaft portion so as to be movable between a low speed position and a high speed position along the axial direction. When the transmission member 20 is located at the low speed position, a protruding piece 20a of the transmission member 20 that protrudes radially outward from the groove 19.
And a key groove K1 for rotating the low-speed transmission gear G1 integrally with the transmission member 20 to form a key groove K1 in the low-speed transmission gear G1. When the transmission member 20 is located at the neutral position, the medium-speed transmission gear G2 is formed. The rotation of the protruding piece 20a with respect to the annular space 21 that is not transmitted from the transmission member 20 to the medium speed transmission gear G2, and the projection piece 20a engages when the transmission member 20 is located at the medium speed position. And a key groove K2 for integrally rotating the transmission gear G2 for the medium speed and the transmission member 20 is formed in the transmission gear G2 for the medium speed, and when the transmission member 20 is located at the high speed position, it engages with the protruding piece 20a. A key groove K3 for integrally rotating the high-speed transmission gear G3 with the transmission member 20 is formed in the high-speed transmission gear G3, and a spring 22 and an operation shaft 23 for moving the transmission member 20 along the axial direction are provided. , The position of the operation shaft 23 Transmission by regulating member 2
The ball detent 24 is provided to hold 0 at the low speed position, medium speed position, and high speed position. That is, operation axis 2
3 is moved to the high-speed position side along the axial direction, thereby moving the transmission member 20 in the order of the low-speed position, the neutral position, the medium-speed position, and the high-speed position against the urging force of the spring 22, and Is moved to the low-speed position side along the axial direction, whereby the transmission member 20 is moved by the urging force of the spring 22 to the high-speed position.
It is configured to move in order of a middle speed position, a neutral position, and a low speed position.
【００２４】そして、この変速装置１３に対する操作手
段は、図９にも示すように、揺動することにより、前記
操作軸２３を軸芯方向に沿って移動させる変速レバー２
５を設け、この変速レバー２５の揺動を案内するレバー
ガイド２６に、操作軸２３を低速位置に位置させる揺動
位置に位置する変速レバー２５を係合させて変速レバー
２５を低速位置に保持するための低速保持凹部Ｆ１と、
操作軸２３を中立位置に位置させる揺動位置に位置する
変速レバー２５を係合させて変速レバー２５を中立位置
に保持するための中立保持凹部Ｎと、操作軸２３を中速
位置に位置させる揺動位置に位置する変速レバー２５を
係合させて変速レバー２５を中速位置に保持するための
中速保持凹部Ｆ２と、操作軸２３を高速位置に位置させ
る揺動位置に位置する変速レバー２５を係合させて変速
レバー２５を高速位置に保持するための高速保持凹部Ｆ
３とを形成して構成されている。As shown in FIG. 9, the operation means for the transmission 13 is a speed change lever 2 which moves the operation shaft 23 in the axial direction by swinging.
5 is engaged with the lever guide 26 that guides the swing of the shift lever 25, and the shift lever 25 that is located at the swing position where the operation shaft 23 is located at the low speed position is engaged to hold the shift lever 25 at the low speed position. Low-speed holding recess F1 for
A neutral holding concave portion N for engaging the shift lever 25 located at the swing position for holding the shift shaft 25 at the neutral position, and positioning the operating shaft 23 at the middle speed position. A medium-speed holding recess F2 for engaging the shift lever 25 located at the swing position to hold the shift lever 25 at the middle position, and a shift lever located at the swing position for positioning the operating shaft 23 at the high position. High-speed holding recess F for engaging the transmission lever 25 at the high-speed position by engaging
3 are formed.
【００２５】前記減速装置１４は、前記従動軸１８にこ
れと一体に回転する状態に小径伝動ギヤ２７を装着し、
この小径伝動ギヤ２７に常時噛み合い連動する大径従動
ギヤ２８を前記伝動軸１７に回転のみ自在に装着して構
成されている。In the speed reducer 14, a small-diameter transmission gear 27 is mounted on the driven shaft 18 so as to rotate integrally therewith.
A large-diameter driven gear 28 always meshing with and linked to the small-diameter transmission gear 27 is mounted on the transmission shaft 17 so as to be rotatable only.
【００２６】前記クラッチ１５は、図６に詳しく示すよ
うに、前記大径従動ギヤ２８と、従動軸１８に回転のみ
自在に装着した車輪への伝動スプロケット２９と一体に
回転するギヤ３０との間に介装されている。具体的に
は、前記ギヤ３０に常時噛み合い連動するシフトギヤ３
１を伝動軸１７に回転並びにシフト自在に装着し、大径
従動ギヤ２８とシフトギヤ３１とに、シフトギヤ３１が
大径従動ギヤ２８に接近したクラッチ入り位置に位置す
るとき互いに噛み合って大径従動ギヤ２８からシフトギ
ヤ３１への伝動を行うとともにシフトギヤ３１が大径従
動ギヤ２８から離隔したクラッチ切り位置に位置すると
き噛み合いを解除して大径従動ギヤ２８からシフトギヤ
３１への伝動を断つクラッチ片３２ａ，３２ｂを振り分
け形成して構成されている。As shown in detail in FIG. 6, the clutch 15 is provided between the large-diameter driven gear 28 and a gear 30 that rotates integrally with a transmission sprocket 29 that is rotatably mounted on the driven shaft 18 to wheels. It is interposed in. More specifically, the shift gear 3 always meshing with the gear 30
1 is rotatably and shiftably mounted on the transmission shaft 17, and meshes with the large-diameter driven gear 28 and the shift gear 31 when the shift gear 31 is located at the clutch engagement position close to the large-diameter driven gear 28. When the shift gear 31 is located at a clutch disengaged position separated from the large-diameter driven gear 28, the transmission is transmitted from the large-diameter driven gear 28 to the shift gear 31, and the clutch piece 32 a, which cuts off transmission from the large-diameter driven gear 28 to the shift gear 31, 32b is formed by distribution.
【００２７】前記クラッチ１５の操作手段は、右のハン
ドル杆６Ｒの握り部６ａにその握り部６ａを共握り操作
自在なクラッチレバー３３を設け、シフトギヤ３１をク
ラッチ切り方向に作動付勢するバネ（図示せず）と、シ
フトギヤ３１を付勢に抗してクラッチ入り位置にシフト
させるシフトフォーク３４とを設け、クラッチレバー３
３の共握り操作に伴いクラッチ１５が入り作動するよう
にクラッチレバー３３とシフトフォーク３４とを連動さ
せる連動ワイヤ３５を設けて構成されている。The operating means of the clutch 15 is provided with a clutch lever 33 which can be operated by gripping the grip portion 6a together with the grip portion 6a of the right handle bar 6R, and a spring which biases the shift gear 31 in the clutch disengaging direction. (Not shown) and a shift fork 34 for shifting the shift gear 31 to the clutch engaged position against the bias.
3 is provided with an interlocking wire 35 for interlocking the clutch lever 33 and the shift fork 34 so that the clutch 15 is engaged and operated in accordance with the joint gripping operation.
【００２８】そして、伝動系のうち、変速・減速された
動力を駆動後車輪５に伝達する伝動系は、前記駆動後車
輪５の車軸５ａに従動スプロケット３６を一体回転する
状態に装着し、前記伝動スプロケット２９と従動スプロ
ケット３６とにわたって伝動チェーン３７を巻回して構
成されている。他方、駆動前車輪７に伝達する伝動系
は、中間スプロケット３８を介して前記伝動チェーン３
７に連動する第１中間軸３９を設け、ユニバーサルジョ
イント４０を介して前部ミッションケース１１に支承さ
せた伝動チェーン１０の入力軸１０ａに連動する第２中
間軸４１を設け、第１中間軸３９から第２中間軸４１へ
の中間チェーン伝動装置４２を設けて構成されている。In the transmission system, the transmission system for transmitting the speed-changed and decelerated power to the driven wheel 5 is mounted such that the driven sprocket 36 is driven to rotate integrally with the axle 5a of the driven wheel 5. The transmission chain 37 is wound around the transmission sprocket 29 and the driven sprocket 36. On the other hand, the transmission system for transmitting to the front drive wheel 7 is connected to the transmission chain 3 via the intermediate sprocket 38.
7, a second intermediate shaft 41 interlocked with the input shaft 10a of the transmission chain 10 supported on the front transmission case 11 via a universal joint 40, and a first intermediate shaft 39 is provided. And an intermediate chain transmission 42 from the first to the second intermediate shaft 41.
【００２９】かつ、畦草刈機は、図９に示すように、変
速レバー２５が中立凹部Ｎに係合しているときオンする
リミットスイッチ利用の中立スイッチ４３を備えてお
り、エンジンスイッチをオンした状態でリコイルスター
タ４４のスタータハンドル４５を引き操作した際、中立
スイッチ４３がオンしていないと、つまり、変速装置１
３が中立状態にないとエンジン８を始動できないように
なっている。Further, as shown in FIG. 9, the ridge mower includes a neutral switch 43 using a limit switch which is turned on when the shift lever 25 is engaged with the neutral recess N, and the engine switch is turned on. When the starter handle 45 of the recoil starter 44 is pulled in this state, if the neutral switch 43 is not turned on, that is, the transmission 1
If the engine 3 is not in a neutral state, the engine 8 cannot be started.
【００３０】〔別実施形態〕変速装置１３の変速段数は
適宜変更可能で、二段変速、四段変速などであっても良
い。[Alternative Embodiment] The number of shift stages of the transmission 13 can be changed as appropriate, and may be a two-stage shift, a four-stage shift, or the like.
【００３１】走行装置１２、変速装置１３、減速装置１
４、クラッチ１５の形態、構造は適宜変更可能である。Traveling device 12, transmission device 13, reduction device 1
4. The form and structure of the clutch 15 can be changed as appropriate.
【００３２】上記実施の形態では、歩行型作業機とし
て、畦草刈機を示したが、本発明は、歩行型耕耘機や歩
行型田植機、歩行型芝刈機、歩行型管理機など各種の歩
行型作業機に適用することができる。In the above-described embodiment, a ridge mower is shown as a walking-type working machine. However, the present invention is applicable to various types of walking such as a walking-type cultivator, a walking-type rice transplanter, a walking-type lawnmower, and a walking-type management machine. It can be applied to mold working machines.
【図１】畦草刈機の側面図Fig. 1 Side view of ridge mower
【図２】畦草刈機の平面図FIG. 2 is a plan view of a furrow mower.
【図３】刈取装置の正面図FIG. 3 is a front view of the reaper.
【図４】ミッションケースの縦断正面図FIG. 4 is a longitudinal sectional front view of a transmission case.
【図５】ミッションケースの縦断側面図FIG. 5 is a longitudinal sectional side view of a transmission case.
【図６】変速装置・クラッチの縦断正面図FIG. 6 is a longitudinal sectional front view of a transmission and a clutch.
【図７】変速装置の横断面図FIG. 7 is a cross-sectional view of the transmission.
【図８】変速装置の分解斜視図FIG. 8 is an exploded perspective view of the transmission.
【図９】レバーガイドの背面図FIG. 9 is a rear view of the lever guide.
６ 操縦ハンドル ６ａ 握り部 ８ エンジン １２ 走行装置 １３ 変速装置 １４ 減速装置 １５ クラッチ １７ 伝動軸 １８ 従動軸 ３３クラッチレバー Ｇ１ 伝動ギヤ Ｇ２ 伝動ギヤ ｇ１ 従動ギヤ ｇ２ 従動ギヤ Reference Signs List 6 Control handle 6a Handle 8 Engine 12 Traveling device 13 Transmission 14 Reduction gear 15 Clutch 17 Transmission shaft 18 Follower shaft 33 Clutch lever G1 Transmission gear G2 Transmission gear g1 Follower gear g2 Follower gear
───────────────────────────────────────────────────── フロントページの続き (72)発明者 溝辺 高史 大阪府南河内郡美原町木材通４丁目15番５ 号 クボタ精機株式会社内 (72)発明者 稲田 真也 大阪府南河内郡美原町木材通４丁目15番５ 号 クボタ精機株式会社内 Ｆターム(参考） 2B076 AA07 DA02 DC01 2B083 AA01 AA02 BA13 CA07 HA55 HA59 KA07 3D039 AA02 AA03 AA04 AB16 AC04 AC21 AC37 AC70 AC77 AD23 AD53 3D043 AA05 AB13 EA02 EA12 EA33 EA34 EA35 EA40 EB02 EB12 EB13 EB14 EC03 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Takafumi Mizobe, Inventor 4-15-5, Miwadori, Mihara-cho, Minamikawachi-gun, Osaka Inside Kubota Seiki Co., Ltd. (72) Shinya Inada 4-chome, Miwadori, Mihara-cho, Minamikawachi-gun, Osaka No. 15 No. 5 F-term in Kubota Seiki Co., Ltd. (reference) 2B076 AA07 DA02 DC01 2B083 AA01 AA02 BA13 CA07 HA55 HA59 KA07 3D039 AA02 AA03 AA04 AB16 AC04 AC21 AC37 AC70 AC77 AD23 AD53 3D043 AA05 AB13 EA02 EA13 EA33 EA33 EB12 EB14 EC03
Claims (3)
速装置と減速装置とクラッチとをその記載順に直列に介
装し、前記変速装置として中立状態を現出保持可能なも
のを設けてある歩行型作業機の走行伝動装置。1. A transmission system from an engine to a traveling device is provided with a transmission, a reduction gear, and a clutch in series in the stated order, and is provided with a transmission capable of maintaining a neutral state. Traveling transmission for walk-behind work machines.
伝動ギヤを回転自在に装着し、従動軸に各伝動ギヤの対
応するものに常時噛み合い連動する従動ギヤを装着し、
前記伝動ギヤを択一的に伝動軸に連動させる連動手段を
設けてある請求項１記載の歩行型作業機の走行伝動装
置。2. A transmission device comprising: a plurality of transmission gears rotatably mounted on a transmission shaft; and a driven gear constantly engaged with and associated with a corresponding one of the transmission gears mounted on a driven shaft;
2. The traveling transmission device for a walking-type working machine according to claim 1, further comprising an interlocking means for selectively interlocking the transmission gear with a transmission shaft.
握り操作自在なクラッチレバーを設け、クラッチレバー
の共握り操作に伴いクラッチが入り作動するようにクラ
ッチレバーとクラッチとを連動させてある請求項１又は
２記載の歩行型作業機の走行伝動装置。3. A clutch lever which can be squeezed and operated together with the grip portion of the steering handle, and the clutch lever and the clutch are interlocked so that the clutch is engaged and operated with the joint grip operation of the clutch lever. The traveling transmission device for a walking type working machine according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10195566A JP2000025470A (en) | 1998-07-10 | 1998-07-10 | Travel transmission device for walking work machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10195566A JP2000025470A (en) | 1998-07-10 | 1998-07-10 | Travel transmission device for walking work machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000025470A true JP2000025470A (en) | 2000-01-25 |
Family
ID=16343263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10195566A Pending JP2000025470A (en) | 1998-07-10 | 1998-07-10 | Travel transmission device for walking work machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000025470A (en) |
-
1998
- 1998-07-10 JP JP10195566A patent/JP2000025470A/en active Pending
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