JP5540845B2 - Cultivator - Google Patents

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JP5540845B2
JP5540845B2 JP2010087894A JP2010087894A JP5540845B2 JP 5540845 B2 JP5540845 B2 JP 5540845B2 JP 2010087894 A JP2010087894 A JP 2010087894A JP 2010087894 A JP2010087894 A JP 2010087894A JP 5540845 B2 JP5540845 B2 JP 5540845B2
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wheel
lug
width
transmission case
axle
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秀明 中川
聡 富久
恭正 黒田
浩二 二宮
正男 宮内
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Iseki and Co Ltd
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Description

この発明は、耕耘機や管理作業機に関する。 This invention also relates to the tiller and management working machine.

車輪伝動ケースの両側に外下り傾斜の車軸を設け、この車軸に左右一対の車輪を下狭まりの傾斜にして正面視Ｖ字状形態に軸装する技術（例えば、特許文献１参照）が知られている。   2. Description of the Related Art A technology is known in which axles are provided on both sides of a wheel transmission case and are inclined downward and a pair of left and right wheels are inclined downwardly and are mounted in a V-shaped configuration when viewed from the front. ing.

特許第４０６５２５４号公報（第３頁、図２）。Japanese Patent No. 4065254 (page 3, FIG. 2).

耕耘機や、中耕除草機等の管理作業機は、既製の畝溝間に沿って走行しながら作業を行うことが多く、左右の走行車輪をＶ字形態にして装着しても、その走行、旋回操向等は行い難く、又、畝上面に作物があるときは、走行車輪が接近して作物を損傷することが多く、作業操作には熟練を要することとなり、作業能率を高め難いものである。   Management work machines such as tillage machines and medium-plow weeding machines often work while running along ready-made furrows, and even if the left and right running wheels are mounted in a V-shape, their running, Turning operations are difficult to perform, and when there are crops on the top of the ridge, the traveling wheels often approach and damage the crops, and the operation requires skill, making it difficult to increase work efficiency. is there.

請求項１に記載の発明は、
車輪伝動ケース（１）の下端部にチェン（２８）の伝動を受けるスプロケット軸筒（２７）を設け、スプロケット軸筒（２７）内から両外側に外下り傾斜の車軸（２）を有して、この車軸（２）に左右一対の車輪（３）を下狭まりの傾斜にして軸装し、
車輪（３）は車軸（２）に取り付けるボス（３５）と、該ボス（３５）から放射状に設けるスポーク（３６）と、該スポーク（３６）の外周部に固定するリング（３７）と、該リング（３７）の外周に一体的に形成するタイヤ（３８）を備え、
タイヤ（３８）にはリング（３７）に沿う形状のセンタラグ（４０）を設け、センタラグ（４０）の外周端が接地して走行支持する構成とし、
センタラグ（４０）の内側面から内側に向かって内側サイドラグ（４）を形成し、センタラグ（４０）の外側面から外側に向かって外側サイドラグ（５）を形成し、
内側サイドラグ（４）の幅（Ａ）を、外側サイドラグ（５）の幅（Ｂ）よりも広く形成し、
センタラグ（４０）を車輪伝動ケース（１）の幅（Ｃ）域の外側に設け、
左右それぞれの内側サイドラグ（４）を車輪伝動ケース（１）の幅（Ｃ）の域の直下に設けると共に、左右それぞれの内側サイドラグ（４）の先端同士を接近させる構成としたことを特徴とする耕耘機とする。 The invention described in claim 1
A sprocket shaft cylinder (27) that receives the transmission of the chain (28) is provided at the lower end of the wheel transmission case (1), and an axle (2) that is inclined outwardly from the inside of the sprocket shaft cylinder (27) is provided. The axle (2) is mounted with a pair of left and right wheels (3) inclined downwardly ,
The wheel (3) includes a boss (35) attached to the axle (2), a spoke (36) provided radially from the boss (35), a ring (37) fixed to the outer periphery of the spoke (36), A tire (38) integrally formed on the outer periphery of the ring (37);
The tire (38) is provided with a center lug (40) having a shape along the ring (37), and the outer peripheral end of the center lug (40) is grounded to support running,
An inner side lug (4) is formed from the inner side surface of the center lug (40) toward the inner side, an outer side lug (5) is formed from the outer side surface of the center lug (40) toward the outer side,
Forming the width (A) of the inner side lugs (4) wider than the width (B) of the outer side lugs (5) ;
A center lug (40) is provided outside the width (C) region of the wheel transmission case (1),
The left and right inner side lugs (4) are provided immediately below the width (C) of the wheel transmission case (1), and the tips of the left and right inner side lugs (4) are made to approach each other. A cultivator .

請求項２に記載の発明は、
車輪伝動ケース（１）の下端部にチェン（２８）の伝動を受けるスプロケット軸筒（２７）を設け、スプロケット軸筒（２７）内から両外側に外下り傾斜の車軸（２）を有して、この車軸（２）に左右一対の車輪（３）を下狭まりの傾斜にして軸装し、
車輪（３）は車軸（２）に取り付けるボス（３５）と、該ボス（３５）から放射状に設けるスポーク（３６）と、該スポーク（３６）の外周部に固定するリング（３７）と、該リング（３７）の外周に一体的に形成するタイヤ（３８）を備え、
タイヤ（３８）にはリング（３７）に沿う形状のセンタラグ（４０）を設け、センタラグ（４０）の外周端が接地して走行支持する構成とし、
センタラグ（４０）の内側面のみにサイドラグ（４）を形成し、
センタラグ（４０）を車輪伝動ケース（１）の幅（Ｃ）域の外側に設け、
左右それぞれの内側サイドラグ（４）を車輪伝動ケース（１）の幅（Ｃ）の域の直下に設けると共に、左右それぞれの内側サイドラグ（４）の先端同士を接近させる構成としたことを特徴とする耕耘機とする。 The invention described in claim 2
A sprocket shaft cylinder (27) that receives the transmission of the chain (28) is provided at the lower end of the wheel transmission case (1), and an axle (2) that is inclined outwardly from the inside of the sprocket shaft cylinder (27) is provided. The axle (2) is mounted with a pair of left and right wheels (3) inclined downwardly ,
The wheel (3) includes a boss (35) attached to the axle (2), a spoke (36) provided radially from the boss (35), a ring (37) fixed to the outer periphery of the spoke (36), A tire (38) integrally formed on the outer periphery of the ring (37);
The tire (38) is provided with a center lug (40) having a shape along the ring (37), and the outer peripheral end of the center lug (40) is grounded to support running,
A side lug (4) is formed only on the inner surface of the center lug (40),
A center lug (40) is provided outside the width (C) region of the wheel transmission case (1),
The left and right inner side lugs (4) are provided immediately below the width (C) of the wheel transmission case (1), and the tips of the left and right inner side lugs (4) are made to approach each other. A cultivator .

請求項１に記載の発明は、
車輪伝動ケース（１）の下端部にチェン（２８）の伝動を受けるスプロケット軸筒（２７）を設け、スプロケット軸筒（２７）内から両外側に外下り傾斜の車軸（２）を有して、この車軸（２）に左右一対の車輪（３）を下狭まりの傾斜にして軸装し、車輪（３）は車軸（２）に取り付けるボス（３５）と、該ボス（３５）から放射状に設けるスポーク（３６）と、該スポーク（３６）の外周部に固定するリング（３７）と、該リング（３７）の外周に一体的に形成するタイヤ（３８）を備え、タイヤ（３８）にはリング（３７）に沿う形状のセンタラグ（４０）を設け、センタラグ（４０）の外周端が接地して走行支持する構成とし、センタラグ（４０）の内側面から内側に向かって内側サイドラグ（４）を形成し、センタラグ（４０）の外側面から外側に向かって外側サイドラグ（５）を形成し、内側サイドラグ（４）の幅（Ａ）を、外側サイドラグ（５）の幅（Ｂ）よりも広く形成し、センタラグ（４０）を車輪伝動ケース（１）の幅（Ｃ）域の外側に設け、左右それぞれの内側サイドラグ（４）を車輪伝動ケース（１）の幅（Ｃ）の域の直下に設けると共に、左右それぞれの内側サイドラグ（４）の先端同士を接近させる構成としたことを特徴とする耕耘機とすることで、
Ｖ字形態に軸装される車輪３の接地部の幅を狭くして、走行、旋回操向性を円滑に維持することができる。しかも、左右両車輪３間には幅広いサイドラグ４が形成されるため、各車輪３自体の幅を狭くしても、サイドラグ４の左右両側から内側への対向によって、走行土壌面部を左右両側から抱え込むようにして、外側へ駆動土壌部を逃がさないようにして駆動するものであるから、走行車輪１の駆動力を大きく維持して安定した走行を行うことができる。又、これらＶ字形態の狭接幅に形成した車輪３の外側面に形成されるサイドラグ５幅Ｂは、狭く形成されるため、畝側面や畦側面等の接触抵抗を少くし、わら屑や、作物等との接触、係合等を少くすることができ、走行、及び旋回操作を行い易くする。 The invention described in claim 1
A sprocket shaft cylinder (27) that receives the transmission of the chain (28) is provided at the lower end of the wheel transmission case (1), and an axle (2) that is inclined outwardly from the inside of the sprocket shaft cylinder (27) is provided. A pair of left and right wheels (3) are mounted on the axle (2) so as to be inclined downwardly, and the wheel (3) is radially attached to the boss (35) attached to the axle (2). A spoke (36) to be provided, a ring (37) to be fixed to the outer periphery of the spoke (36), and a tire (38) integrally formed on the outer periphery of the ring (37), the tire (38) A center lug (40) having a shape along the ring (37) is provided, and the outer peripheral end of the center lug (40) is grounded to support the running, and the inner side lug (4) is directed inward from the inner side surface of the center lug (40). Forming the center lug (40) An outer side lug (5) is formed from the side to the outside, the width (A) of the inner side lug (4) is formed wider than the width (B) of the outer side lug (5), and the center lug (40) is transmitted to the wheel. Provided on the outside of the width (C) region of the case (1), the left and right inner side lugs (4) are provided directly below the width (C) region of the wheel transmission case (1), and the left and right inner side lugs (4 ) With a cultivator characterized by having a configuration in which the tips of
By reducing the width of the ground contact portion of the wheel 3 that is mounted in a V-shape, it is possible to smoothly maintain traveling and turning steerability. Moreover, since a wide side lug 4 is formed between the left and right wheels 3, even if the width of each wheel 3 itself is reduced, the traveling soil surface portion is held from both the left and right sides by facing the inner side from the left and right sides of the side lug 4. In this way, the driving soil portion is driven so as not to escape to the outside, so that the driving force of the traveling wheel 1 can be kept large and stable traveling can be performed. Further, since the side lug 5 width B formed on the outer surface of the wheel 3 formed in the narrow contact width of these V-shapes is formed narrowly, the contact resistance on the side surface or side surface of the heel is reduced, so that It is possible to reduce contact with and engagement with crops, etc., and to facilitate running and turning operations.

請求項２に記載の発明は、
車輪伝動ケース（１）の下端部にチェン（２８）の伝動を受けるスプロケット軸筒（２７）を設け、スプロケット軸筒（２７）内から両外側に外下り傾斜の車軸（２）を有して、この車軸（２）に左右一対の車輪（３）を下狭まりの傾斜にして軸装し、車輪（３）は車軸（２）に取り付けるボス（３５）と、該ボス（３５）から放射状に設けるスポーク（３６）と、該スポーク（３６）の外周部に固定するリング（３７）と、該リング（３７）の外周に一体的に形成するタイヤ（３８）を備え、タイヤ（３８）にはリング（３７）に沿う形状のセンタラグ（４０）を設け、センタラグ（４０）の外周端が接地して走行支持する構成とし、センタラグ（４０）の内側面のみにサイドラグ（４）を形成し、センタラグ（４０）を車輪伝動ケース（１）の幅（Ｃ）域の外側に設け、左右それぞれの内側サイドラグ（４）を車輪伝動ケース（１）の幅（Ｃ）の域の直下に設けると共に、左右それぞれの内側サイドラグ（４）の先端同士を接近させる構成としたことを特徴とする耕耘機とすることで、
前記Ｖ字形態に軸装される車輪３の外側面にはサイドラグを形成しないため、より狭幅の畝間においても円滑に走行することができ、旋回操作等を一層行い易くする。 The invention described in claim 2
A sprocket shaft cylinder (27) that receives the transmission of the chain (28) is provided at the lower end of the wheel transmission case (1), and an axle (2) that is inclined outwardly from the inside of the sprocket shaft cylinder (27) is provided. A pair of left and right wheels (3) are mounted on the axle (2) so as to be inclined downwardly, and the wheel (3) is radially attached to the boss (35) attached to the axle (2). A spoke (36) to be provided, a ring (37) to be fixed to the outer periphery of the spoke (36), and a tire (38) integrally formed on the outer periphery of the ring (37), the tire (38) A center lug (40) having a shape along the ring (37) is provided, and the outer peripheral end of the center lug (40) is grounded to support the running. The side lug (4) is formed only on the inner surface of the center lug (40), and the center lug (40) Wheel transmission case ( ) On the outside of the width (C) region, and the left and right inner side lugs (4) are provided directly below the width (C) region of the wheel transmission case (1) and the tips of the left and right inner side lugs (4). By making a cultivator characterized by having a configuration that brings them closer together,
Since the side lugs are not formed on the outer surface of the wheel 3 that is mounted in the V-shape, the vehicle can run smoothly even in narrower spaces, making it easier to perform turning operations and the like.

車輪の正面図と、その側面図。The front view of a wheel and its side view. その一部別例を示す車輪の正面図。The front view of the wheel which shows the example in part. その一部別例を示す車輪の正面図。The front view of the wheel which shows the example in part. 耕耘機の側面図。A side view of a field cultivator. 耕耘機の平面図。Top view of a field cultivator. 耕耘機の伝動部の展開平面図。The expansion | deployment top view of the transmission part of a tillage machine. 耕耘作業を示す図。The figure which shows the cultivation work.

図面に基づいて、車体６の後方にハンドル７を突出させたハンド形態の耕耘機は、ミッションケース８を主体として、この前側に取付けたフロントブラケット９上にエンジン１０を搭載し、このミッションケース８の前部下方に形成される車輪伝動ケース１に左右一対の車輪３を車軸２で軸装する。又、このミッションケース８の後側部にはロータ伝動ケース１１を設けて、下端左右両側部に耕耘爪１２を配置した耕耘軸１３を軸装して、耕耘ロータ１４を構成している。この耕耘ロータ１４の上側を被覆するロータカバー１５を設け、ミッションケース８後方に突出するリヤフレーム１６の後端部には、尾輪１７を有する支持杆１８を昇降調節自在に取付けて、耕耘ロータ１４による耕耘深さを調節可能に構成している。前記ハンドル７は、ミッションケース８の上部に上下方向のハンドル軸１９周りに前Ｆ、後Ｒ振替可能に設けている。このハンドル７には、耕耘作業を行うための操作レバー２０を配置している。前記エンジン１０の駆動軸２１と、ミッションケース８上の入力軸２２との間は、ベルト２３掛けによって伝動する構成とし、この入力軸２２の回転によって、前記車軸２、及び耕耘軸１３を伝動回転する構成としている。   Based on the drawings, a hand-type tiller with a handle 7 projecting rearward of the vehicle body 6 has a transmission case 8 as a main body and an engine 10 mounted on a front bracket 9 attached to the front side. A pair of left and right wheels 3 are mounted on an axle 2 on a wheel transmission case 1 formed below the front part of the wheel. Further, a rotor transmission case 11 is provided on the rear side portion of the transmission case 8, and a tilling rotor 14 is configured by mounting a tilling shaft 13 on which the tilling claws 12 are arranged on both left and right sides of the lower end. A rotor cover 15 covering the upper side of the tilling rotor 14 is provided, and a support rod 18 having a tail wheel 17 is attached to a rear end portion of the rear frame 16 protruding rearward of the transmission case 8 so as to be adjustable up and down. 14 is configured to be able to adjust the tilling depth. The handle 7 is provided on the upper part of the mission case 8 so that the front F and rear R can be transferred around the handle shaft 19 in the vertical direction. The handle 7 is provided with an operation lever 20 for performing tillage work. The drive shaft 21 of the engine 10 and the input shaft 22 on the transmission case 8 are configured to be transmitted by a belt 23 hook, and the rotation of the input shaft 22 causes the axle 2 and the tillage shaft 13 to be transmitted and rotated. It is configured to do.

前記ミッションケース８の入力軸２２から変速ギヤ２４を有する変速軸２５、カウンタ軸２６を介して、更に、車輪伝動ケース１下端部のスプロケット軸筒２７との間をチエン２８掛けによって車軸２を伝動する。又、前記入力軸２２からカウンタ軸２９、３０を介してチエン３１掛け伝動で耕耘軸１３を伝動する。   The axle 2 is transmitted from the input shaft 22 of the transmission case 8 through the transmission shaft 25 having the transmission gear 24 and the counter shaft 26 to the sprocket shaft cylinder 27 at the lower end of the wheel transmission case 1 by hooking the chain 28. To do. Further, the tilling shaft 13 is transmitted from the input shaft 22 through the counter shafts 29 and 30 by chain 31 transmission.

前記左右の車軸２は、外側端下り傾斜に設定して軸受けし、この車軸２の内端にギヤ３２を形成し、このギヤ３２を前記スプロケット軸筒２７の内周面に形成の内歯ギヤ３３に噛合させる。スプロケット軸２７の回転により外側端下り傾斜の各車軸２伝動回転する形態である。   The left and right axles 2 are set to have outer end descending inclinations and are bearing, a gear 32 is formed at the inner end of the axle 2, and this gear 32 is an internal gear formed on the inner peripheral surface of the sprocket shaft cylinder 27. 33 is engaged. In this configuration, the rotation of the sprocket shaft 27 causes each axle 2 to rotate on the outer end downward.

ここにおいて、この車軸２に取付けられる走行車輪３は、車輪伝動ケース１の両側に外下り傾斜の車軸２を有して、この車軸２に左右一対の車輪３を下狭まりの傾斜にして軸装し、この車輪３の内側対向面側に突出のサイドラグ４幅Ａを、外側のサイドラグ５幅Ｂよりも広く形成したことを特徴とする耕耘機の走行車輪の構成とする（図１参照）。   Here, the traveling wheel 3 attached to the axle 2 has axles 2 that are inclined outwardly on both sides of the wheel transmission case 1, and a pair of left and right wheels 3 are inclined downwardly on the axle 2. And the side lug 4 width A which protrudes on the inner side facing surface side of the wheel 3 is formed wider than the outer side lug 5 width B (see FIG. 1).

ハンド走行操作形態の耕耘機は、車輪伝動ケース１の下端部の左右両側部に外側端下りの傾斜に突出して設けられる車軸２に、左右一対の車輪３を軸装する。この車輪３は下端部の車輪伝動ケース１の直下部に位置させて、正面視で略Ｖ字形状形態にして駆動回転して、土壌面に接地回転して耕耘機を走行させる。この左右車輪３の回転により、この回転周部の左右両側部に張出形成のサイドラグ４、５が土壌面に接地係合されて駆動力を維持するが、これら車輪３の対向内側に向けて突出するサイドラグ４は、幅Ａ広く形成されるため土壌面に対する駆動力を大きく維持し、外側に向けて突出するサイドラグ５は、幅Ｂ狭く形成されるため、土壌面に対する駆動力は、該内側のサイドラグ４に比して比較的小さいが、外側に植生する作物等との接触においても損傷を少くする。このように車輪３の外側に形成されるラグ５幅Ｂが狭く形成されるため、機体の旋回操向時は左右車輪３の走行接地幅が狭いため、接地面が畝間の溝部のように狭い所であっても、旋回操向を円滑に行わせる。   The tiller in the hand travel operation mode has a pair of left and right wheels 3 mounted on an axle 2 provided on both left and right sides of the lower end portion of the wheel transmission case 1 so as to protrude downwardly from the outer end. The wheel 3 is positioned directly below the wheel transmission case 1 at the lower end, and is driven and rotated in a substantially V-shaped form when viewed from the front. By the rotation of the left and right wheels 3, side lugs 4 and 5 that are formed overhanging on both the left and right sides of the rotating peripheral portion are grounded and engaged with the soil surface to maintain the driving force. Since the protruding side lugs 4 are formed with a wide width A, the driving force for the soil surface is maintained large, and the side lugs 5 protruding outward are formed with a narrow width B, so that the driving force for the soil surface is Although it is comparatively small compared with the side rug 4, the damage is reduced even in contact with crops or the like that grow outside. Since the lug 5 width B formed on the outside of the wheel 3 is thus narrow, the traveling ground width of the left and right wheels 3 is narrow at the time of turning of the airframe, so that the ground contact surface is narrow like a groove portion between the furrows. Even if it is a place, the turning operation is performed smoothly.

また、外側に向けて突出するサイドラグ５は突出幅Ｄを小さくしたリブ程度に形成する構成にしても良い（図２参照）。この構成によると、サイドラグ４に対して外側方への突出（張出）幅Ｄが小さく、駆動走行時の土壌面の接地駆動抵抗力は小さいが接地支持力を維持するように補強するもので、接地支持を安定させる。   Further, the side lugs 5 projecting outward may be formed as ribs having a small projecting width D (see FIG. 2). According to this configuration, the lateral protrusion (extension) width D with respect to the side lugs 4 is small, and the ground driving resistance force on the soil surface during driving traveling is small, but the ground lug is reinforced so as to maintain the ground supporting force. , Stabilize the ground support.

又、この車軸２に取付けられる走行車輪３は、車輪伝動ケース１の両側に外下り傾斜の車軸２を有して、この車軸２に左右一対の車輪３を下狭まりの傾斜にして軸装し、前記車輪３の内側対向面側にのみサイドラグ４を形成して、外側にはサイドラグを形成しない形態とすることもできる（図３、図６参照）。   Further, the traveling wheel 3 attached to the axle 2 has axles 2 that are inclined outwardly on both sides of the wheel transmission case 1, and a pair of left and right wheels 3 are inclined to the axle 2 so as to be inclined downward. The side lugs 4 may be formed only on the inner facing surface side of the wheel 3 and the side lugs may not be formed on the outer side (see FIGS. 3 and 6).

この形態では、前記のように駆動回転する車輪３は、内側にのみサイドラグ４が形成されて、駆動力を維持するが、外側にはサイドラグが形成されないで回転面が滑面であるから、畝側面や、側部作物との接触係合作用が行われないで、駆動回転の抵抗を少くして作物を損傷しないで円滑な走行駆動、及び旋回操向等を行うことができる。   In this embodiment, the wheel 3 that is driven and rotated as described above has the side lugs 4 formed only on the inner side and maintains the driving force, but the side lugs are not formed on the outer side and the rotating surface is a smooth surface. Since the contact engagement action with the side surface and the side crop is not performed, smooth driving and turning operation can be performed without reducing the resistance of driving rotation and damaging the crop.

更に、前記車輪３の内側対向面側に形成のサイドラグ４幅Ａを、車輪伝動ケース１の幅Ｃ域直下内に重合させて形成する（図１、図２、図３、図６参照）。
前記のように車輪伝動ケース１の左右両側部で、車軸２周りに駆動回転する車輪３は、内側に形成されるサイドラグ４幅Ａが、車輪伝動ケース１の幅Ｃ域内にわたって重合するように位置して大きい駆動力を維持して回転するため、この車輪伝動ケース１直下の土壌部を左右両側部から抱え込むようにして、外側へ駆動土壌部を逃がさないようにして駆動係合して、支持力、乃至駆動力を高く維持し、車輪３の接地振動や、揺動を少くして、安定させることができる。 Furthermore, the side lug 4 width A formed on the inner facing surface side of the wheel 3 is formed by being superposed inside the width C region of the wheel transmission case 1 (see FIGS. 1, 2, 3, and 6).
As described above, at the left and right sides of the wheel transmission case 1, the wheel 3 that is driven and rotated around the axle 2 is positioned such that the side lug 4 width A formed inside overlaps within the width C region of the wheel transmission case 1. In order to rotate while maintaining a large driving force, the soil part directly below the wheel transmission case 1 is held from both the left and right side parts, and the driving soil part is driven and engaged so as not to escape to the outside. The force or driving force can be kept high, and the ground vibration and swinging of the wheel 3 can be reduced and stabilized.

左右一対の車輪３の基本構成について図１に基づいて説明する（サイドラグ以外の部分は図３、図６も共通である）。
車軸２に対してセットピン３４で着脱される中心部のボス３５から、放射方向にスポーク３６を設けて、外周部にパイプ材形態のリング３７を固定して、車輪３の芯材主体を構成している。このリング３７部の外周に合成ゴム材によってタイヤ３８を一体的に成形する。このダイヤ３８は、前記リング３７、及びこのリング３７部に対する各スポーク３６の連結部等を埋設するようにタイヤコア３９を成形して、このタイヤコア３９の外方に向けて適宜ゴム肉厚のセンタラグ４０をリング形態にして形成し、このセンタラグ４０には適宜間隔の切欠部４１を形成している。 A basic configuration of the pair of left and right wheels 3 will be described with reference to FIG. 1 (parts other than the side lugs are also common to FIGS. 3 and 6).
A spoke 36 is provided in a radial direction from a central boss 35 that is attached to and detached from the axle 2 with a set pin 34, and a ring 37 in the form of a pipe material is fixed to the outer peripheral portion to constitute a core material main body of the wheel 3. doing. A tire 38 is integrally formed with a synthetic rubber material on the outer periphery of the ring 37 portion. In the diamond 38, a tire core 39 is formed so as to embed the ring 37 and a connecting portion of each spoke 36 with respect to the ring 37 portion, and a center lug 40 having an appropriate rubber wall thickness toward the outside of the tire core 39. The center lug 40 is formed with notches 41 with appropriate intervals.

このセンタラグ４０の外周端が接地中心部となって回転して、走行支持するものである。前記サイドラグ４、５は、このセンタラグ４０の内側面、外側面から側方に突出させて一体的成形している。又、このタイヤコア３９の内周部に沿って左右外側方に張り出す耳縁輪形態のタイヤ内周縁４２を形成する。   The outer peripheral end of the center lug 40 rotates as a ground contact center to support traveling. The side lugs 4 and 5 are integrally formed by projecting sideways from the inner and outer surfaces of the center lug 40. In addition, a tire inner peripheral edge 42 in the form of an edge ring that projects outward in the left and right direction along the inner peripheral portion of the tire core 39 is formed.

前記サイドラグ４、５は、これらタイヤコア３９や、センタラグ４０、及びタイヤ内周縁４２の左右外側部にわたって適宜幅に突出させる一体的成形の形態である。このように回転方向前後に配置のサイドラグ４、５は、センタコア３９、センタラグ４０、及びタイヤ内周縁４２等と一体的に連結成形してボックス形態であるから剛性を維持して、走行時の接地支持を安定させることができる。   The side lugs 4 and 5 are integrally formed so as to protrude to the appropriate width across the tire core 39, the center lug 40, and the left and right outer portions of the tire inner peripheral edge 42. Thus, the side lugs 4 and 5 arranged in the front and rear of the rotation direction are integrally formed with the center core 39, the center lug 40, the tire inner peripheral edge 42 and the like so as to be in a box form, so that the rigidity is maintained and the grounding during running Support can be stabilized.

又、左右一対の車輪３の対向する内側に形成の各サイドラグ４は、突出幅Ｂをできるだけ広く形成して、先端縁を接近させる形態とする。この突出されたサイドラグ４の先端縁は、上側の車輪伝動ケース１の左右幅Ｃ域の直下内に位置して回転する形態である。   Moreover, each side lug 4 formed inside the pair of left and right wheels 3 facing each other has a protruding width B as wide as possible so that the leading edge is brought closer. The protruding end edge of the side lug 4 is configured to be positioned and rotated within the right-left width C region of the upper wheel transmission case 1.

前記左右両側部の車輪３によって接地支持するタイヤ３８部は、車輪３の支持走行姿勢が正面視で略Ｖ字状形態で、しかも外側のサイドラグ５の幅Ｂが狭く形成されて、回転接地の幅が狭くなるが、タイヤ３８の中心部のタイヤコア３９の直下にリング３７外周に沿うプレートリング状のセンタラグ４０が形成されていて、このセンタラグ４０がこれらサイドラグ４、５や、タイヤ内周縁４２等によって剛体的に支持されるため、これらセンタラグ４０や、サイドラグ４、５等の接地作用によって、車輪伝動ケース１直下の土壌面を左右両側から挾持しようとして支持させるため、安定した接地支持力を維持して、円滑な走行を行わせる。   The tire 38 portion that is grounded and supported by the wheels 3 on both the left and right side portions has a substantially V-shaped configuration in which the running posture of the wheel 3 is a front view, and the outer side lug 5 has a narrow width B. Although the width is reduced, a plate ring-shaped center lug 40 is formed along the outer periphery of the ring 37 immediately below the tire core 39 in the center of the tire 38. The center lug 40 is formed of the side lugs 4, 5 and the tire inner peripheral edge 42. Since the center lug 40 and the side lugs 4, 5, etc. are grounded to support the soil surface immediately below the wheel transmission case 1 from both the left and right sides, a stable ground support force is maintained. And make it run smoothly.

図７に基づき、畝U間を除草等で耕耘する作業について説明する。
（イ）は耕耘ロータ１４が車輪３の前側にある耕耘機の場合の作業。（ロ）は耕耘ロータ１４が車輪３の後側にある本実施の形態の耕耘機である。 Based on FIG. 7, the operation | work which plows between the ridges U by weeding etc. is demonstrated.
(A) is the work in the case of a cultivator in which the cultivator rotor 14 is on the front side of the wheel 3. (B) is the cultivator of the present embodiment in which the cultivating rotor 14 is on the rear side of the wheel 3.

（イ）の場合には二つの畝Ｕ間を耕耘して隣接する畝Ｕ間に旋回するときに、耕耘ロータ１４が先頭にあると、畝Ｕ間に入り込むときの位置合わせ時に、耕耘ロータ１４が畝Ｕの内側に当接し、畝Ｕの一部Ｙ部分を破壊しやすい。そのため、旋回半径を大きくしなければならない。また、畝Ｕ間を走行中にも畝Ｕの内側を破壊し易い。   In the case of (a), when cultivating between two ridges U and turning between adjacent ridges U, if the cultivating rotor 14 is at the head, the cultivating rotor 14 is aligned at the time of alignment when entering between the ridges U. Comes into contact with the inside of the ridge U, and a part Y portion of the ridge U is easily broken. Therefore, the turning radius must be increased. Moreover, it is easy to destroy the inner side of the kite U while traveling between the kites U.

それに対し、本実施の形態のように車輪３が前で、耕耘ロータ１４が後ろに配置する場合には畝Ｕ間に入り込むとき、旋回半径が小さくても畝Ｕ間への位置合わせがし易く、また、畝Ｕ間を走行しやすく畝Ｕを破壊し難い。しかも、本実施の形態のように車輪をＶ字形態にすることで、作業者は車輪の設置位置を見極め易く幅狭の畝Ｕ間に沿って進行操作し易くすることができる。   On the other hand, when the wheel 3 is in front and the tilling rotor 14 is arranged rearward as in the present embodiment, when entering the space between the ridges U, it is easy to align between the ridges U even if the turning radius is small. In addition, it is easy to travel between the kites U and it is difficult to destroy the kites U. Moreover, by making the wheels V-shaped as in the present embodiment, it is easy for the operator to determine the installation position of the wheels and to facilitate the operation along the narrow rods U.

１ 車輪伝動ケース
２ 車軸
３ 車輪
４ サイドラグ
５ サイドラグ 1 Wheel transmission case 2 Axle 3 Wheel 4 Side lug 5 Side lug

Claims (2)

車輪伝動ケース（１）の下端部にチェン（２８）の伝動を受けるスプロケット軸筒（２７）を設け、スプロケット軸筒（２７）内から両外側に外下り傾斜の車軸（２）を有して、この車軸（２）に左右一対の車輪（３）を下狭まりの傾斜にして軸装し、
車輪（３）は車軸（２）に取り付けるボス（３５）と、該ボス（３５）から放射状に設けるスポーク（３６）と、該スポーク（３６）の外周部に固定するリング（３７）と、該リング（３７）の外周に一体的に形成するタイヤ（３８）を備え、
タイヤ（３８）にはリング（３７）に沿う形状のセンタラグ（４０）を設け、センタラグ（４０）の外周端が接地して走行支持する構成とし、
センタラグ（４０）の内側面から内側に向かって内側サイドラグ（４）を形成し、センタラグ（４０）の外側面から外側に向かって外側サイドラグ（５）を形成し、
内側サイドラグ（４）の幅（Ａ）を、外側サイドラグ（５）の幅（Ｂ）よりも広く形成し、
センタラグ（４０）を車輪伝動ケース（１）の幅（Ｃ）域の外側に設け、
左右それぞれの内側サイドラグ（４）を車輪伝動ケース（１）の幅（Ｃ）の域の直下に設けると共に、左右それぞれの内側サイドラグ（４）の先端同士を接近させる構成としたことを特徴とする耕耘機。 A sprocket shaft cylinder (27) that receives the transmission of the chain (28) is provided at the lower end of the wheel transmission case (1), and an axle (2) that is inclined outwardly from the inside of the sprocket shaft cylinder (27) is provided. The axle (2) is mounted with a pair of left and right wheels (3) inclined downwardly ,
The wheel (3) includes a boss (35) attached to the axle (2), a spoke (36) provided radially from the boss (35), a ring (37) fixed to the outer periphery of the spoke (36), A tire (38) integrally formed on the outer periphery of the ring (37);
The tire (38) is provided with a center lug (40) having a shape along the ring (37), and the outer peripheral end of the center lug (40) is grounded to support running,
An inner side lug (4) is formed from the inner side surface of the center lug (40) toward the inner side, an outer side lug (5) is formed from the outer side surface of the center lug (40) toward the outer side,
Forming the width (A) of the inner side lugs (4) wider than the width (B) of the outer side lugs (5) ;
A center lug (40) is provided outside the width (C) region of the wheel transmission case (1),
The left and right inner side lugs (4) are provided immediately below the width (C) of the wheel transmission case (1), and the tips of the left and right inner side lugs (4) are made to approach each other. Cultivator . 車輪伝動ケース（１）の下端部にチェン（２８）の伝動を受けるスプロケット軸筒（２７）を設け、スプロケット軸筒（２７）内から両外側に外下り傾斜の車軸（２）を有して、この車軸（２）に左右一対の車輪（３）を下狭まりの傾斜にして軸装し、
車輪（３）は車軸（２）に取り付けるボス（３５）と、該ボス（３５）から放射状に設けるスポーク（３６）と、該スポーク（３６）の外周部に固定するリング（３７）と、該リング（３７）の外周に一体的に形成するタイヤ（３８）を備え、
タイヤ（３８）にはリング（３７）に沿う形状のセンタラグ（４０）を設け、センタラグ（４０）の外周端が接地して走行支持する構成とし、
センタラグ（４０）の内側面のみにサイドラグ（４）を形成し、
センタラグ（４０）を車輪伝動ケース（１）の幅（Ｃ）域の外側に設け、
左右それぞれの内側サイドラグ（４）を車輪伝動ケース（１）の幅（Ｃ）の域の直下に設けると共に、左右それぞれの内側サイドラグ（４）の先端同士を接近させる構成としたことを特徴とする耕耘機。 A sprocket shaft cylinder (27) that receives the transmission of the chain (28) is provided at the lower end of the wheel transmission case (1), and an axle (2) that is inclined outwardly from the inside of the sprocket shaft cylinder (27) is provided. The axle (2) is mounted with a pair of left and right wheels (3) inclined downwardly ,
The wheel (3) includes a boss (35) attached to the axle (2), a spoke (36) provided radially from the boss (35), a ring (37) fixed to the outer periphery of the spoke (36), A tire (38) integrally formed on the outer periphery of the ring (37);
The tire (38) is provided with a center lug (40) having a shape along the ring (37), and the outer peripheral end of the center lug (40) is grounded to support running,
A side lug (4) is formed only on the inner surface of the center lug (40),
A center lug (40) is provided outside the width (C) region of the wheel transmission case (1),
The left and right inner side lugs (4) are provided immediately below the width (C) of the wheel transmission case (1), and the tips of the left and right inner side lugs (4) are made to approach each other. Cultivator .
JP2010087894A 2010-04-06 2010-04-06 Cultivator Active JP5540845B2 (en)

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