JP5761291B2

JP5761291B2 - Walk-type field cultivator

Info

Publication number: JP5761291B2
Application number: JP2013200020A
Authority: JP
Inventors: 中川　秀明; 秀明中川; 富久　聡; 聡富久; 黒田　恭正; 恭正黒田; 二宮　浩二; 浩二二宮; 宮内　正男; 正男宮内
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2013-09-26
Filing date: 2013-09-26
Publication date: 2015-08-12
Anticipated expiration: 2030-07-28
Also published as: JP2013252152A

Description

本発明は、歩行型の耕耘機に関する。 The present invention relates to a walking type tiller.

特許文献１には、左右一対の移動輪の支持体それぞれに左右一対の培土板を取りつけ、培土作業位置と培土非作業位置に切り換える技術が記載されている。 Patent Document 1 describes a technique in which a pair of left and right cultivating plates are attached to each of a pair of left and right moving wheel supports to switch between a cultivating work position and a non-cultivating position.

特開２００９−１８３２３５JP 2009-183235 A

特許文献１においては、培土作業位置と培土非作業位置とするのに、左右一対の培土板それぞれ切り換え作業を要するため煩わしい。本発明は、培土作業、耕耘作業を切り換え易くすることを課題とする。 In Patent Document 1, it is troublesome to switch between a pair of left and right cultivating plates to set the cultivating work position and the non-cultivating work position. An object of the present invention is to make it easy to switch between cultivating work and tilling work.

この発明は、かかる技術的課題を解決するために次のような技術的手段を講ずる。すなわち、請求項１記載の発明は、
操作ハンドル（１３）と、圃場を耕耘する耕耘部（Ｋ）と、耕耘部（Ｋ）の後方にあって畝を形成する平面状の培土板（Ｂ）と、転輪（１７）を設けた歩行型耕耘機において、転輪（１７）と培土板（Ｂ）は、一体となって横軸芯回りに回動可能に構成されることで、上方の非作業位置に退避する耕耘作業位置、又は、地面側に位置する培土作業位置に位置決め可能に構成し、
培土板（Ｂ）の背面と転輪（１７）は支持体（２５）を介して連結する構成とし、
転輪（１７）は左右一対設けると共に、背面視で逆台形状の培土板（Ｂ）の下部の左右幅内に設け、
培土作業位置では、転輪が接地すると共に、培土板（Ｂ）が斜め後下がり姿勢とし、
培土板（Ｂ）の上部の左右中央部には切欠き部（２３）を形成し、
耕耘作業位置では、切欠き部（２３）を貫通する抵抗棒（１８）の下端部が圃場面（Ｈ）に作用する構成とすることを特徴とする。 In order to solve this technical problem, the present invention takes the following technical means. That is, the invention according to claim 1
An operation handle (13), a cultivating part (K) for cultivating the field, a flat cultivating board (B) behind the cultivating part (K) and forming a ridge, and a wheel (17) are provided. In the walking type tiller, the rolling wheel (17) and the cultivating board (B) are configured so as to be rotatable around the horizontal axis so that they are retracted to the upper non-working position, Or, it can be positioned at the soil cultivation work position located on the ground side,
The back of the cultivating plate (B) and the wheel (17) are connected via a support (25).
A pair of wheels (17) are provided on the left and right sides, and are provided within the left and right widths of the bottom of the inverted trapezoidal shaped earth plate (B) in rear view ,
At the cultivating work position, the wheel contacts the ground and the cultivating board (B) is in a slanting downward posture,
A notch (23) is formed in the left and right central part of the upper part of the culture plate (B),
In the plowing work position, the lower end portion of the resistance bar (18) penetrating the notch portion (23) is configured to act on the farm scene (H) .

請求項１記載の発明によると、培土作業位置と耕耘作業位置との切り換え作業が簡単に行なえる。培土板（Ｂ）を背面視で逆台形状に形成することで、畝の傾斜面を形成しやすくすることができる。また培土板（Ｂ）で形成した畝を転輪（１７）で踏みつけることを防止し、かつ機体の左右バランスを良好にすることができる。 According to the first aspect of the present invention, the switching operation between the cultivating work position and the tilling work position can be easily performed. By forming the culture plate (B) in an inverted trapezoidal shape when viewed from the back, it is possible to easily form the inclined surface of the ridge. Further, it is possible to prevent the kite formed by the cultivating board (B) from being stepped on by the wheel (17) and to improve the left-right balance of the machine body.

また、耕耘した土を培土板（Ｂ）の前面で受けて左右両側に押し出し易く良好な畝を形成することができる。
また、耕耘作業位置では、切欠き部（２３）を貫通する抵抗棒（１８）の下端部が圃場面（Ｈ）に作用することにより耕耘作業を行うことができる。 Moreover, the plowed soil is received by the front surface of the cultivating plate (B) and can be easily pushed out to the left and right sides to form a good ridge.
Moreover, in a tilling work position, a tilling work can be performed because the lower end part of the resistance bar (18) which penetrates a notch part (23) acts on a farm scene (H).

側面から見た培土作業時の歩行型耕耘機を示す図The figure which shows the walk type tillage machine at the time of soil cultivation work seen from the side 側面から見た運搬作業時の歩行型耕耘機を示す図The figure which shows the walk type tillage machine at the time of carrying work seen from the side 側面から見た耕耘作業時の歩行型耕耘機を示す図The figure which shows the walk type tillage machine at the time of tillage work seen from the side 背面から見た培土板及び車輪を示す図The figure which shows the culture plate and wheel which were seen from the back （イ）側面から見た培土作業時の培土板と転輪の姿勢を示す図（ロ）側面から見た運搬作業時の培土板と転輪の姿勢を示す図（ハ）側面から見た耕耘作業時の培土板と転輪の姿勢を示す図(B) Diagram showing the orientation of the cultivation plate and the rolling wheel during the cultivation work as seen from the side (b) Diagram showing the posture of the cultivation plate and the wheel during the conveyance work as seen from the side (c) Tillage as seen from the side The figure which shows the posture of the mulching board and the wheel at the time of work 側面から見た歩行型耕耘機の概要図Schematic diagram of walking type field cultivator seen from the side

本発明の歩行型耕耘機の基本構成について図６に基づいて説明する。なお、本実施の形態における前後とは機体の進行方向を指し、左右とは形成する畝側を指す。
この歩行型耕耘機は駆動源であるエンジン又は電動モータからの動力で耕耘部の耕耘爪を回転駆動させて耕耘作業を行い、歩行型耕耘機を運搬するときには遊転する車輪を接地させると共に耕耘部を地面から離間して車輪で移動するいわゆる車軸管理機である。 A basic configuration of the walking type tiller of the present invention will be described with reference to FIG. In the present embodiment, front and rear refer to the traveling direction of the aircraft, and left and right indicate the heel side to be formed.
This walking type cultivator performs the cultivating work by rotating the cultivating claw of the cultivating section with the power from the engine or electric motor as a driving source, and when the walking cultivator is transported, the rotating wheel is grounded and cultivated. This is a so-called axle management machine that moves a part with a wheel apart from the ground.

機体前後方向に延びる前機体フレーム１の前側上部にエンジン２を搭載し、後側に伝動軸３を内装する伝動ケース４を支持する。伝動ケース４は機体の左右方向中央部に上下方向に亘って配置し、伝動ケース４の下部から左右両側に耕耘軸５をそれぞれ延設する。そして、エンジン２の駆動軸２ａの動力が伝動ベルト８を経て伝動軸３に伝動し、次いで伝動軸３から耕耘軸５に伝動することにより、耕耘軸５に取り付けている多数の耕耘爪６が回転し耕耘作業を行なう構成である。耕耘軸５の左右両端にはサイドディスク７を設けている。 The engine 2 is mounted on the front upper part of the front body frame 1 extending in the longitudinal direction of the body, and a transmission case 4 having a transmission shaft 3 is supported on the rear side. The transmission case 4 is arranged in the vertical direction at the center in the left-right direction of the machine body, and the tilling shaft 5 is extended from the lower part of the transmission case 4 to the left and right sides. Then, the power of the drive shaft 2a of the engine 2 is transmitted to the transmission shaft 3 through the transmission belt 8, and then transmitted from the transmission shaft 3 to the tilling shaft 5, so that a plurality of tilling claws 6 attached to the tilling shaft 5 are provided. It is the structure which rotates and performs tilling work. Side disks 7 are provided at the left and right ends of the tillage shaft 5.

エンジン２の上部には燃料タンク１０を設け、前機体フレーム１の前端部には上向きに取り付けられるバンパー１１を設けている。燃料タンク１０の後方には操作ハンドル１３と、後機体フレーム２１に取り付けた変速レバー１４を備えている。 A fuel tank 10 is provided at the upper part of the engine 2, and a bumper 11 attached upward is provided at the front end of the front body frame 1. Behind the fuel tank 10 are provided an operation handle 13 and a transmission lever 14 attached to the rear body frame 21.

耕耘爪６の上側を耕耘カバー１５で覆って耕耘部Ｋを構成し、耕耘部Ｋの後部には畝を形成する培土板Ｂと、遊転する左右一対の車輪１７を設けている。培土板Ｂの上方には「く」の字状の抵抗棒１８を縦姿勢に保持する縦ホルダー１９と、抵抗棒１８を横姿勢に保持する横ホルダー２０を設け、それぞれ後機体フレーム２１に取り付ける構成である。 The tilling part K is configured by covering the upper side of the tilling claws 6 with a tilling cover 15, and a rearing plate B that forms a straw and a pair of left and right wheels 17 that are free to rotate are provided at the rear part of the tilling part K. Above the cultivating plate B, there are provided a vertical holder 19 for holding the "<"-shaped resistance rod 18 in a vertical posture and a horizontal holder 20 for holding the resistance rod 18 in a horizontal posture, which are respectively attached to the rear body frame 21. It is a configuration.

次に車輪１７と培土板Ｂの構成について図４と図５に基づいて説明する。
培土板Ｂは背面視で逆台形状に形成する平面の鉄板で、左右両端に後方に向かって屈曲する屈曲部２２を形成している。また、上部の左右中央には切欠き部２３を形成し、該切欠き部２３には中割れするゴム板２４を取りつける構成としている。 Next, the structure of the wheel 17 and the cultivating board B will be described with reference to FIGS.
The cultivating plate B is a flat iron plate formed in an inverted trapezoidal shape when viewed from the back, and has bent portions 22 that are bent rearward at both left and right ends. Further, a notch 23 is formed in the upper left and right center, and a rubber plate 24 that is to be cracked is attached to the notch 23.

左右一対の車輪１７はそれぞれ培土板Ｂの下部の左右両端部の後方に対向する位置に設け、それぞれ支持体２５で支持される構成である。左右の支持体２５は横軸芯の回動軸２６で連結し、回動軸２６が回動すると左右の支持体２５及び車輪１７が共に前後方向に回動する構成である。 The pair of left and right wheels 17 are provided at positions facing the rear of the left and right end portions of the lower part of the cultivating plate B, and are each supported by the support body 25. The left and right support bodies 25 are connected by a horizontal axis rotation shaft 26, and when the rotation shaft 26 rotates, both the left and right support bodies 25 and the wheels 17 rotate in the front-rear direction.

培土板Ｂは支持体２５に連結して左右の車輪１７及び支持体２５と共に回動する構成で、支持体２５の上部と培土板Ｂの上部とを連結する上部連結板３０と、支持体２５の下部と培土板Ｂの下部とを連結する下部連結板３１とで連結する構成である。上部連結板３０は一端を培土板Ｂに固着し、他端を支持体２５にピンで固定し、支持体２５に対して横軸芯に回動自在に構成している。 The cultivating board B is connected to the support body 25 and is rotated together with the left and right wheels 17 and the supporting body 25. The upper connecting plate 30 that connects the upper part of the supporting body 25 and the upper part of the cultivating board B, and the supporting body 25. It connects with the lower connection board 31 which connects the lower part of this, and the lower part of the cultivation board B. As shown in FIG. One end of the upper connecting plate 30 is fixed to the culture plate B, the other end is fixed to the support body 25 with a pin, and the upper connection plate 30 is configured to be rotatable about the horizontal axis with respect to the support body 25.

下部連結板３１は培土板Ｂ側に固着する固定部３１ａと、支持体２５側に連結する調節部３１ｂとで構成し、固定部３１ａと調節部３１ｂとはリンク動作可能に連結すると共に、調節部３１ｂには長孔３１ｄを形成して培土板Ｂの下部と車輪１７との前後方向の距離を変更する構成である。 The lower connecting plate 31 includes a fixing portion 31a that is fixed to the culture plate B side and an adjusting portion 31b that is connected to the support body 25. The fixing portion 31a and the adjusting portion 31b are connected to each other so that the link operation is possible. A long hole 31d is formed in the portion 31b to change the distance in the front-rear direction between the lower portion of the culture plate B and the wheel 17.

支持体２５の回動軸２６の外周を回動軸２６を支持する中空状の回動支持軸３２で覆い、回動支持軸３２の外周には後機体フレーム２１側に固定する固定具３５と、位置合わせ孔２７ａを形成した位置合わせプレート２７を取り付けている。また、回動軸２６側には側面視扇形で複数個所の位置決め孔ｍ、ｎ、ｐを形成した位置決めプレート３３を取り付けている。そして、位置決めピン３４で位置決め孔ｍ、ｎ、ｐのいずれかと位置合わせ孔２７ａを合わせて挿入し、支持体２５、すなわち車輪１７と培土板Ｂの位置を培土作業位置、運搬作業位置、耕耘作業位置に変更する構成である。 The outer periphery of the rotation shaft 26 of the support body 25 is covered with a hollow rotation support shaft 32 that supports the rotation shaft 26, and the outer periphery of the rotation support shaft 32 is fixed to the rear body frame 21 side. The alignment plate 27 in which the alignment holes 27a are formed is attached. In addition, a positioning plate 33 having a plurality of positioning holes m, n, and p in a fan shape in a side view is attached to the rotating shaft 26 side. Then, the positioning pin 34 is inserted into the positioning hole m, n, or p with the alignment hole 27a, and the position of the support 25, that is, the wheel 17 and the soil culturing board B is determined as the culturing work position, the transporting work position, and the tilling work. It is the structure which changes to a position.

次に耕耘しながら畝を形成する培土作業と、非耕耘時の歩行型耕耘機を移動する運搬作業と、通常の耕耘作業について説明する。
培土作業時（図１及び図５の（ロ）参照）は培土板Ｂと車輪１７との距離が広くなる位置に調節部３１ｂを調節して固定ボルト３１ｃで位置固定する。位置決めピン３４を培土作業位置孔ｍと位置合わせ孔２７ａに挿入して支持体２５を斜め後姿勢として車輪１７を接地すると、培土板Ｂが支持体２５より急傾斜の斜め後姿勢となり下端部が培土作用時に圃場Ｈに作用する姿勢となる。そして、作業者が操作ハンドル１３を把持して耕耘部Ｋの回転による推進力で圃場を耕耘し、耕耘した土を培土板Ｂの前面で受けて左右両側に押し出し、屈曲部２２の面で案内及び押圧することで左右に畝の傾斜面を形成する。このとき、車輪１７は耕耘深さを一定になるように調節する役割を果たしている。また、培土作業時には抵抗棒１８は不要なので横ホルダ２０に前後方向長手姿勢に収納し、運転操作および培土作業いずれにも邪魔しないようにしている。 Next, the cultivation work for forming the ridge while plowing, the transporting work for moving the walking type tiller during non-plowing, and the normal cultivating work will be described.
At the time of cultivating work (see FIGS. 1 and 5 (B)), the adjusting portion 31b is adjusted to a position where the distance between the cultivating plate B and the wheel 17 is widened, and the position is fixed by the fixing bolt 31c. When the positioning pin 34 is inserted into the culturing work position hole m and the alignment hole 27a and the wheel 17 is grounded with the support body 25 in an obliquely rearward posture, the cultivating board B becomes an obliquely rearward posture that is steeper than the support body 25, and the lower end portion is It becomes the posture which acts on the field H at the time of soil cultivation. Then, the operator holds the operation handle 13 and cultivates the field with the propulsive force generated by the rotation of the cultivating part K, receives the cultivated soil on the front surface of the cultivating board B, pushes it out to the left and right sides, and guides it on the surface of the bent part 22 And the inclined surface of a ridge is formed on the right and left by pressing. At this time, the wheel 17 plays a role of adjusting the tilling depth to be constant. In addition, since the resistance rod 18 is not necessary during the culturing work, it is stored in the lateral holder 20 in the longitudinal direction in the longitudinal direction so as not to disturb both the operation and the culturing work.

運搬作業時（図２及び図５の（イ）参照）には、培土板Ｂと車輪１７との距離が狭くなる位置に調節部３１ｂを調節して固定ボルト３１ｃで位置固定する。位置決めピン３３を運搬作業位置孔ｎと位置合わせ孔２７ａに挿入して、支持体２５を地面に対して急傾斜又は略垂直の姿勢にして車輪を接地すると、培土板Ｂが斜め前姿勢となって圃場から非作用位置まで上方に離間する。また、運転者が操作ハンドル１３を押し下げると、耕耘部Ｋも地面から離間し、機体前側が斜め上向きになり、機体が運搬姿勢となる。このとき、培土板Ｂは耕耘爪６の耕耘回転軌跡Ｇ内に入らない構成としている。 At the time of carrying work (see (a) in FIGS. 2 and 5), the adjusting portion 31b is adjusted to a position where the distance between the soil culturing plate B and the wheel 17 becomes narrow, and the position is fixed by the fixing bolt 31c. When the positioning pin 33 is inserted into the transporting work position hole n and the alignment hole 27a, and the wheel is grounded with the support body 25 being steeply inclined or substantially perpendicular to the ground, the cultivating board B is in a slanting front position. And away from the field to the non-acting position. Further, when the driver depresses the operation handle 13, the tillage part K is also separated from the ground, the front side of the body is inclined upward, and the body is in the transporting posture. At this time, the cultivating board B is configured not to enter the tillage rotation locus G of the tillage claw 6.

通常の耕耘作業時（図３及び図５の（ハ）参照）は車輪１７と培土板Ｂは不要のため上方に回動して位置決めピン３３を耕耘作業位置孔ｐと位置合わせ孔２７ａに挿入して支持体２５を後斜め上姿勢にする。そして、抵抗棒１８を縦ホルダー１９で縦方向長手姿勢に保持し、下端部を圃場面Ｈに作用させる。このとき、抵抗棒１８は培土板Ｂの切欠き部２３のゴム板２４の中割れ部を貫通する構成である。 During normal tillage work (see (c) in FIGS. 3 and 5), the wheel 17 and the cultivating board B are unnecessary, so that they rotate upward and the positioning pin 33 is inserted into the tillage work position hole p and the alignment hole 27a. Then, the support body 25 is set to the rear obliquely upward posture. Then, the resistance rod 18 is held in the vertical longitudinal posture by the vertical holder 19, and the lower end is applied to the field scene H. At this time, the resistance rod 18 is configured to penetrate through the middle crack portion of the rubber plate 24 of the cutout portion 23 of the culture plate B.

そして、作業者が操作ハンドル１３を把持して耕耘部Ｋの回転の推進力で耕耘作業がなされる。 Then, the operator grips the operation handle 13 and performs the tilling work with the driving force of the rotation of the tilling portion K.

１３操作ハンドル
１７転輪
Ｋ耕耘部
Ｂ培土板 13 Operation handle 17 Rolling wheel K Tillage part B

Claims

An operation handle (13), a cultivating part (K) for cultivating the field, a flat cultivating board (B) behind the cultivating part (K) and forming a ridge, and a wheel (17) are provided. In the walking type tiller, the rolling wheel (17) and the cultivating board (B) are configured so as to be rotatable around the horizontal axis so that they are retracted to the upper non-working position, Or, it can be positioned at the soil cultivation work position located on the ground side,
The back of the cultivating plate (B) and the wheel (17) are connected via a support (25).
A pair of wheels (17) are provided on the left and right sides, and are provided within the left and right widths of the bottom of the inverted trapezoidal shaped earth plate (B) in rear view ,
At the cultivating work position, the wheel contacts the ground and the cultivating board (B) is in a slanting downward posture,
A notch (23) is formed in the left and right central part of the upper part of the culture plate (B),
A walk-type field cultivator characterized in that the lower end of the resistance bar (18) penetrating the notch (23) acts on the field scene (H) at the position of the tilling work .