JPH0240733Y2 - - Google Patents
Info
- Publication number
- JPH0240733Y2 JPH0240733Y2 JP1982018751U JP1875182U JPH0240733Y2 JP H0240733 Y2 JPH0240733 Y2 JP H0240733Y2 JP 1982018751 U JP1982018751 U JP 1982018751U JP 1875182 U JP1875182 U JP 1875182U JP H0240733 Y2 JPH0240733 Y2 JP H0240733Y2
- Authority
- JP
- Japan
- Prior art keywords
- clutch
- operating lever
- operated
- cam
- planting
- 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
Links
- 230000007246 mechanism Effects 0.000 claims description 20
- 230000003028 elevating effect Effects 0.000 claims description 11
- 241000209094 Oryza Species 0.000 claims description 9
- 235000007164 Oryza sativa Nutrition 0.000 claims description 9
- 235000009566 rice Nutrition 0.000 claims description 9
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Transplanting Machines (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、後部に植付け装置が固定連結された
走行機体に対して、走行車輪を駆動昇降する機構
を設けてある歩行型田植機に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a walk-behind rice transplanter, which is provided with a mechanism for driving up and down the running wheels of a running body to which a planting device is fixedly connected to the rear part.
〔従来の技術〕
歩行型田植機においては、植付けクラツチ用の
操作レバーをクラツチ入り位置からクラツチ切り
位置に操作すると、これに連動して走行車輪の駆
動昇降機構が下降作動側に切換操作されるように
連係しているものがある。[Prior Art] In a walk-behind rice transplanter, when the operating lever for the planting clutch is operated from the clutch engaged position to the clutch disengaged position, the drive lifting mechanism for the running wheels is switched to the lowering operation side in conjunction with this. There are things that are connected like this.
これにより、１回の植付行程が終了して畦際で
旋回する場合等において、特別な操作を要するこ
となく走行車輪を下降させて機体を上昇させ得る
ことになり、植付け装置のフロートによる田面の
掻き乱しのないように楽に旋回が行えるのであ
る。 As a result, when turning at the edge of a ridge after completing one planting process, the traveling wheels can be lowered and the machine can be raised without requiring any special operations. This allows you to turn easily without causing any disturbance.
しかしながな、操作レバーをクラツチ切り位置
に操作した後、旋回が終了して操作レバーをクラ
ツチ入り位置に操作するまでの間といつた比較的
長時間に亘つて、駆動昇降機構がずつと下降作動
状態にあると、走行車輪がその下降端部にまで下
降され易い。
However, over a relatively long period of time, from the time the operating lever is moved to the clutch disengaged position until the end of the turn and the operating lever is moved to the clutch engaged position, the drive elevating mechanism gradually changes. In the lowering operating state, the running wheels tend to be lowered to their lowering ends.
従つて、特に耕盤深さが浅い水田作業の場合、
走行車輪が下降し過ぎて、旋回後において植付け
作業を開始するために操作レバーをクラツチ入り
位置に操作した後、機体が所定の高さに下降する
までに時間が掛つて作業能率の低下を招いてしま
う。しかも、機体の位置が高くなり過ぎて旋回時
の機体安定性が悪くなり、操縦がむずかしくなる
欠点があつた。 Therefore, especially when working in paddy fields where the plowing depth is shallow,
If the traveling wheels descend too much, it takes time for the machine to descend to the specified height after turning the control lever to the clutch position to start planting, resulting in a decrease in work efficiency. I'll be there. Moreover, the aircraft was positioned too high, making it less stable when turning, making it difficult to maneuver.
本考案は、かかる欠点を解消しようとする点に
目的を有する。 The present invention aims to eliminate such drawbacks.
本考案の特徴は以上のように、植付けクラツチ
入切用の操作レバーと走行車輪用の駆動昇降機構
とを連係機構を介して連係させてある歩行型田植
機において、次のように構成していることにあ
る。つまり、前記連係機構に、クラツチ入り位置
とクラツチ切り位置とに亘る操作経路に沿つて、
前記操作レバーをクラツチ入り位置からクラツチ
入切の境界を越えてクラツチ切り側の途中箇所に
操作すると、前記駆動昇降機構又はこれに連動す
る連動部材を下降作動状態に切替える第１カムを
備えるとともに、前記操作レバーを前記途中箇所
よりもクラツチ切り位置側の操作経路部分に操作
すると、前記駆動昇降機構又は連動部材を昇降停
止状態に切替え保持する第２カムを備えてあるこ
とにあり、その作用及び効果は次のとおりであ
る。
The features of the present invention are as described above, in a walk-behind rice transplanter in which the operating lever for turning on and off the planting clutch and the drive lifting mechanism for the traveling wheels are linked via a linkage mechanism, which is configured as follows. It lies in being. In other words, along the operating path between the clutch engagement position and the clutch disengagement position,
a first cam that switches the drive elevating mechanism or an interlocking member interlocked thereto to a lowering operating state when the operating lever is operated from the clutch engaged position to an intermediate position on the clutch disengaged side beyond the clutch engaged/disengaged boundary; A second cam is provided which switches and holds the drive elevating mechanism or the interlocking member in an elevating and stopped state when the operating lever is operated to a portion of the operating path closer to the clutch disengagement position than the intermediate portion, and the operation and The effects are as follows.
前述のように構成すると、クラツチ入り位置に
在る操作レバーを操作経路に沿つてクラツチ切り
側に操作して行く場合、クラツテ入切の境界を越
えた時点で植付けクラツチが切り操作されるので
あり、操作レバーをクラツチ入切の境界からクラ
ツチ切り側の途中箇所に操作すると、第１カムの
作用により走行車輪が下降操作され始めるのであ
る。そして、操作レバー前記途中箇所からさらに
クラツチ切り位置側に操作すると、第２カムの作
用により走行車輪の下降操作が停止されるのであ
る。
With the above-mentioned configuration, when the operating lever located at the clutch engagement position is operated along the operating path toward the clutch disengagement side, the planting clutch is disengaged when the clutch passes the clutch engagement/disengagement boundary. When the operating lever is operated from the clutch on/off boundary to a halfway point on the clutch disengage side, the traveling wheels begin to be lowered by the action of the first cam. When the operating lever is further operated from the intermediate position to the clutch disengaged position, the lowering operation of the traveling wheels is stopped by the action of the second cam.
従つて、操作レバーにおけるクラツチ入り位置
からクラツチ切り位置への操作途中において、そ
の途中箇所に操作レバーを留めておく時間を操縦
者が適時変更してやることにより、水田の深さに
応じた走行車輪の下降量を得ることができるので
ある。 Therefore, when the operator is moving the operating lever from the clutch engaged position to the clutch disengaged position, the operator can adjust the running wheels according to the depth of the paddy field by appropriately changing the length of time the operating lever is held in that position. It is possible to obtain the amount of decline.
これにより、浅い水田で走行車輪を下げ過ぎて
しまうような無駄が少なくなり、操縦安定性を保
ちながら旋回後に短時間で植付け作業を再開でき
るようになつた。又、本考案はクラツチ入り位置
からクラツチ切り位置への操作途中で走行車輪の
下降を行うように構成したので、操作レバーを途
中で戻し操作する必要もなく、操作性の低下を伴
うものではない。
This reduces waste, such as lowering the running wheels too much in shallow paddy fields, and makes it possible to resume planting work in a short time after turning while maintaining steering stability. Furthermore, since the present invention is configured so that the running wheels are lowered during the operation from the clutch engaged position to the clutch disengaged position, there is no need to return the operating lever halfway, and there is no reduction in operability. .
以下、本考案の実施例を図面に基づいて説明す
る。
Hereinafter, embodiments of the present invention will be described based on the drawings.
後部に植付け装置２が固定連結された走行機体
１に対して駆動昇降自在な左右一対の走行車輪
３，３を植付け装置２の前部に位置する状態で走
行機体１に取付けるとともに、走行車輪３，３対
の前部に、接地圧変動に応答して前部支点Ｒ周り
で上下に揺動する接地フロート４と原動装置５と
を設け、かつ、後方に延出する操縦用ハンドル６
を設けて、歩行型田植機を構成する。 A pair of left and right running wheels 3, 3, which can be driven up and down, are attached to the running body 1 to which the planting device 2 is fixedly connected to the rear thereof, and are positioned at the front of the planting device 2. , three pairs of front parts are provided with a ground float 4 that swings up and down around the front fulcrum R in response to ground pressure fluctuations, and a prime mover 5, and a steering handle 6 that extends rearward.
A walking rice transplanter is constructed.
接地フロート４は、その重量とスプリングＳを
介して接地方向に揺動付勢されている。 The grounding float 4 is biased to swing in the direction of grounding via its weight and a spring S.
走行車輪３，３対の駆動昇降機構７は、走行車
輪３，３夫々の伝動ケース兼用の支持枠８，８を
一体に上下揺動する油圧シリンダ７Ａと、接地フ
ロート４の上下揺動に連動して、接地フロート４
の接地圧を設定範囲内に維持する位置に走行車輪
３，３対を昇降させるべく油圧シリンダ７Ａを伸
縮させる切換弁７Ｂとを備えている。 The drive elevating mechanism 7 for the pair of running wheels 3, 3 is linked to a hydraulic cylinder 7A that vertically swings support frames 8, 8, which also serve as transmission cases for the running wheels 3, 3, respectively, and to the vertical swinging of the ground float 4. and ground float 4
The hydraulic cylinder 7A is provided with a switching valve 7B that expands and contracts the hydraulic cylinder 7A to raise and lower the traveling wheels 3 and 3 pairs to a position where the ground pressure of the ground pressure is maintained within a set range.
植付け装置２は、整地用の左右一対の整地フロ
ート２Ａ，２Ａと、横方向に往復駆動移動自在な
苗のせ台２Ｂ、この苗のせ台２Ｂの横移動に連動
して上下に循環作動することにより苗のせ台２Ｂ
上の載置苗を植付け単位量づつ取出して整地フロ
ート２Ａ，２Ａ及び接地フロート４により整地さ
れた泥面に植付ける植付け爪２Ｃ……群を備えて
おり、この植付け装置２への伝動機構には、操作
レバー９を介して入り切り操作自在な植付けクラ
ツチ１０が介装されている。 The planting device 2 includes a pair of left and right soil leveling floats 2A, 2A for leveling the ground, a seedling platform 2B that is reciprocally movable in the horizontal direction, and a vertical circulation operation in conjunction with the lateral movement of the seedling platform 2B. Seedling stand 2B
The planter is equipped with a group of planting claws 2C, which take out the seedlings placed above in units of planting units and plant them on the mud surface leveled by the soil leveling floats 2A, 2A and the grounding float 4. A planting clutch 10 is interposed therein, which can be turned on and off via an operating lever 9.
操作レバー９と駆動昇降機構７との間には、操
作レバー９の切り操作により駆動昇降機構７が下
降作動状態に切換操作されるように両者９，７を
連係させる連係機構１１が介装構成されている。 A linking mechanism 11 is interposed between the operating lever 9 and the drive elevating mechanism 7 to link the two 9 and 7 so that the operating lever 9 is switched to switch the drive elevating mechanism 7 to the lowering operating state. has been done.
第３図の実線で示す状態は、操作レバー９がク
ラツチ入り位置P′に操作されている状態である。
この状態で植付けクラツチ１０が入り状態となつ
て苗の植付けが行われると共に、接地圧変動によ
り接地フロート４が走行機体１に対して上下動
し、連係ロツド１８及び揺動部材１２（連動部材
に相当）を介して切換弁７Ｂが操作されて、走行
車輪３，３が自動的に昇降操作されている。 The state indicated by the solid line in FIG. 3 is the state in which the operating lever 9 is operated to the clutch engagement position P'.
In this state, the planting clutch 10 is engaged and the seedlings are planted. At the same time, the ground float 4 moves up and down with respect to the traveling body 1 due to ground pressure fluctuations, and the connecting rod 18 and the swinging member 12 (interlocking member) The switching valve 7B is operated via the corresponding switch (equivalent), and the running wheels 3, 3 are automatically raised and lowered.
そして、操作レバー９を第３図に示すクラツチ
入り位置P′から操作経路Ａに沿つてクラツチ切り
位置Ｐ側に操作して行くと、その途中経路a3にお
いてワイヤ１６の引き作用により植付けクラツチ
１０が切り操作される。そして、操作レバー９を
さらにクラツチ切り位置Ｐ側の途中箇所a1に操作
すると、ワイヤ１７の引き作用によりカム部材１
５が回動して、カム部材１５の第１カム１３が揺
動部材１２を下降位置Ｄに押し下げる。これによ
り、切換弁７Ｂにより走行車輪３が下降操作され
始める。 Then, when the operating lever 9 is operated from the clutch engaged position P' shown in FIG . is operated. Then, when the operating lever 9 is further operated to a position a 1 on the side of the clutch disengagement position P, the cam member 1 is moved by the pulling action of the wire 17.
5 rotates, and the first cam 13 of the cam member 15 pushes down the swinging member 12 to the lowered position D. As a result, the traveling wheels 3 begin to be operated downward by the switching valve 7B.
そして、操作レバー９を途中箇所a1からクラツ
チ切り位置Ｐ側の途中経路a2に操作して行くとワ
イヤ１７の引き作用により、第１カム１３に替わ
つて第２カム１４が来ることになり揺動部材１２
が昇降停止位置Ｎに戻る。これにより、走行車輪
３，３の下降が停止するのである。 Then, when the operating lever 9 is operated from the intermediate position a 1 to the intermediate path a 2 on the clutch disengagement position P side, the second cam 14 comes in place of the first cam 13 due to the pulling action of the wire 17. Swing member 12
returns to the lifting stop position N. As a result, the lowering of the running wheels 3, 3 is stopped.
図面は本考案に係る歩行型田植機の実施例を示
し、第１図は歩行型田植機の全体側面図、第２図
は歩行型田植機の全体平面図、第３図は操作レバ
ーと植付けクラツチ及び駆動昇降機構との連係状
態を示す図である。
１……走行機体、２……植付け装置、３……走
行車輪、７……駆動昇降機構、９……操作レバ
ー、１０……植付けクラツチ、１１……連係機
構、１２……連動部材、１３……第１カム、１４
……第２カム、Ａ……操作経路、a1……操作経路
の途中箇所、P′……クラツチ入り位置、Ｐ……ク
ラツチ切り位置。
The drawings show an embodiment of the walking rice transplanter according to the present invention. Figure 1 is an overall side view of the walking rice transplanter, Figure 2 is an overall plan view of the walking rice transplanter, and Figure 3 is an illustration of the operating lever and planting. FIG. 6 is a diagram showing the state of cooperation between the clutch and the drive lifting mechanism. DESCRIPTION OF SYMBOLS 1... Traveling body, 2... Planting device, 3... Traveling wheels, 7... Drive elevation mechanism, 9... Operating lever, 10... Planting clutch, 11... Interlocking mechanism, 12... Interlocking member, 13 ...1st cam, 14
...Second cam, A...Operation path, a1 ...Middle point on the operation path, P'...Clutch engaged position, P...Clutch disengaged position.
Claims (1)
１に対して走行車輪３を駆動昇降する機構７と植
付けクラツチ１０の操作レバー９とを、操作レバ
ー９の切り操作により駆動昇降機構７が下降作動
状態に切替わるように連係させる機構１１を設け
てある歩行型田植機において、前記連係機構１１
に、クラツチ入り位置P′とクラツチ切り位置Ｐと
に亘る操作経路Ａに沿つて、前記操作レバー９を
クラツチ入り位置P′からクラツチ入切の境界を越
えてクラツチ切り側の途中箇所a1に操作すると、
前記駆動昇降機構７又はこれに連動する連動部材
１２を下降作動状態に切替える第１カム１３を備
えるとともに、前記操作レバー９を前記途中箇所
a1よりもクラツチ切り位置Ｐ側の操作経路Ａ部分
に操作すると、前記駆動昇降機構７又は連動部材
１２を昇降停止状態に切替え保持する第２カム１
４を備えてある事を特徴とする歩行型田植機。 A mechanism 7 for driving up and down the traveling wheels 3 with respect to the traveling body 1 to which the planting device 2 is fixedly connected to the rear part and the operating lever 9 of the planting clutch 10 are operated so that the driving elevating mechanism 7 is lowered by turning the operating lever 9. In a walk-behind rice transplanter that is provided with a mechanism 11 that is linked to switch the state, the linkage mechanism 11
Then, along the operating path A extending between the clutch engaged position P' and the clutch disengaged position P, move the operating lever 9 from the clutch engaged position P' beyond the clutch engaged/disengaged boundary to a midway point a1 on the clutch disengaged side. When operated,
A first cam 13 is provided for switching the drive elevating mechanism 7 or an interlocking member 12 interlocked thereto to a lowering operating state, and the operating lever 9 is moved to the intermediate position.
When the operation is performed on the operation path A portion closer to the clutch disengagement position P than a 1 , the second cam 1 switches and holds the driving elevating mechanism 7 or the interlocking member 12 in the elevating stopped state.
This walk-behind rice transplanter is characterized by having 4 features.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1875182U JPS58122914U (en) | 1982-02-13 | 1982-02-13 | Walking rice transplanter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1875182U JPS58122914U (en) | 1982-02-13 | 1982-02-13 | Walking rice transplanter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58122914U JPS58122914U (en) | 1983-08-22 |
| JPH0240733Y2 true JPH0240733Y2 (en) | 1990-10-30 |
Family
ID=30031000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1875182U Granted JPS58122914U (en) | 1982-02-13 | 1982-02-13 | Walking rice transplanter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58122914U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6329369Y2 (en) * | 1980-01-19 | 1988-08-08 |
-
1982
- 1982-02-13 JP JP1875182U patent/JPS58122914U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58122914U (en) | 1983-08-22 |
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