JPH0999704A - Wheel for walking type work vehicle and traveling device of walking type work vehicle using the same - Google Patents

Wheel for walking type work vehicle and traveling device of walking type work vehicle using the same

Info

Publication number
JPH0999704A
JPH0999704A JP26132795A JP26132795A JPH0999704A JP H0999704 A JPH0999704 A JP H0999704A JP 26132795 A JP26132795 A JP 26132795A JP 26132795 A JP26132795 A JP 26132795A JP H0999704 A JPH0999704 A JP H0999704A
Authority
JP
Japan
Prior art keywords
wheel
lug
work vehicle
rim
lugs
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
Application number
JP26132795A
Other languages
Japanese (ja)
Inventor
Hiroshi Imoo
裕志 芋生
Yoshihisa Shibano
義久 芝野
Toshiyuki Matsumoto
利幸 松本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP26132795A priority Critical patent/JPH0999704A/en
Publication of JPH0999704A publication Critical patent/JPH0999704A/en
Pending legal-status Critical Current

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  • Soil Working Implements (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a wheel for a walking type work vehicle which can be used between crops and even in a rice field narrow in an inter-ridge space without incurring inconvenience such thrust is reduced and a separating condition of soil splashed up by lugs gets worse in a two-wheel system walking type work vehicle excellent in stability at traveling time. SOLUTION: A wheel for a walking type vehicle is constituted by continuously arranging a rim 10 where plural lugs 10A are provided in a condition of projecting toward the lateral outside on one side in a boss part 11 connected to a wheel 4 so as to be freely mountable and demountable in a condition where a side end part 11a of the boss part 11 becoming the same side with a side end part 10a is displaced in a recessed shape in the projecting direction of the lugs 10A to the side end part 10a on the side where the lugs 10A in the rim 10 do not project.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、歩行型作業車用の
車輪とそれを使用した歩行型作業車の走行装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel for a walk-behind work vehicle and a traveling device for a walk-behind work vehicle using the wheel.

【0002】[0002]

【従来の技術】従来、上記のような歩行型作業車用の車
輪としては、例えば、実開昭54‐50303号公報な
どで開示されているように、車軸に対して着脱自在に取
り付けられるボス部の外周に数本のスポークを介して鉄
製のリムを設け、このリムの全周に、推力を得るための
複数のラグがリムの一側方に突出する状態に形成された
ゴムを被覆することによって構成されたものがあった。
2. Description of the Related Art Conventionally, as a wheel for a walking type work vehicle as described above, for example, as disclosed in Japanese Utility Model Laid-Open No. 54-50303, a boss that is detachably attached to an axle is provided. An iron rim is provided on the outer circumference of the part through several spokes, and the entire circumference of this rim is covered with a rubber formed so that a plurality of lugs for obtaining thrust protrude to one side of the rim. There was one made up of things.

【0003】ところで、作物間における中耕作業や畝間
における中耕培土作業を行う歩行型作業車には一輪型式
のものと二輪型式のものとがある。一輪型式のものは、
車輪幅が狭いことから作物間や畝間が狭い圃場でも使用
できる利点を有するが、走行時の安定性が悪くなる不利
がある。一方、二輪型式のものは、走行時の安定性に優
れている利点を有するが、旋回走行を行い易くするため
の操向クラッチを装備していることから左右の車輪間隔
幅をあまり狭くできないようになっており、作物間や畝
間が狭い圃場では使用できない不利がある。そこで、走
行時の安定性に優れた二輪型式でありながら作物間や畝
間の狭い圃場でも使用できる歩行型作業車の開発が望ま
れている。
By the way, there are one-wheel type and two-wheel type walking type work vehicles for performing the tillage work between crops and the tilling work in the furrows. The one-wheel type is
Since the wheel width is narrow, it has an advantage that it can be used even in a field where crops and ridges are narrow, but it has a disadvantage that stability during running is deteriorated. On the other hand, the two-wheel type has an advantage that it is excellent in stability during running, but since it is equipped with a steering clutch for facilitating turning, it is not possible to narrow the left and right wheel spacing. Therefore, there is a disadvantage that it cannot be used in a field where crops and ridges are narrow. Therefore, there is a demand for the development of a walk-behind work vehicle that is a two-wheel type that excels in running stability and that can be used even in a narrow field between crops and ridges.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、上記従
来技術による歩行型作業車用の車輪は、リムにおけるラ
グが突出しない側の側端部と、該側端部と同じ側となる
ボス部の側端部とが、ラグの突出方向で略一致するとと
もに、ラグの突出端が、該突出端と同じ側となるボス部
の側端部よりも更に横外側方に突出する状態に構成され
ていることから、二輪型式の歩行型作業車に対して各車
輪のラグが機体の横外側方に向けて突出する状態に装着
した場合には、左右の車輪間隔幅が200〜300mm
程度になり、作物間が150mm程度になる狭い圃場で
は、車輪が作物を踏み倒す不都合を招き、また、畝間が
150mm程度になる狭い圃場では、車輪が畝に乗り上
がって走行時の安定性が悪くなる、あるいは、畝の側面
に伸びた作物の根をラグで傷付けるなどの不都合を招く
ようになる。つまり、上記従来技術による車輪を装着し
た二輪型式の歩行型作業車は、作物間や畝間が狭い圃場
では使用できないようになっていた。
However, in the wheel for a walk-behind work vehicle according to the above-mentioned prior art, the side end of the rim where the lug does not project and the side of the boss that is on the same side as the side end. The end portion is substantially aligned with the protruding direction of the lug, and the protruding end of the lug is further laterally outwardly projected than the side end portion of the boss portion on the same side as the protruding end. Therefore, when the lug of each wheel is mounted on the two-wheel type walking work vehicle in a state of protruding toward the lateral outer side of the machine body, the width of the left and right wheels is 200 to 300 mm.
In a narrow field where the distance between the crops is about 150 mm, the wheel causes the inconvenience of stepping over the crop, and in a narrow field where the ridge is about 150 mm, the wheel rides on the ridge and stability during traveling is poor. Or, it will cause inconvenience such as damage to the roots of crops that have grown on the side of the ridge with rugs. That is, the two-wheeled walking work vehicle equipped with the wheels according to the above-described conventional technology cannot be used in a field where crops and ridges are narrow.

【0005】ちなみに、上記従来技術の車輪におけるラ
グの突出長さを短くすることによって左右の車輪間隔幅
を狭くすることも考えられるが、ラグは推力を得るため
に形成されたものであることから、左右の車輪間隔幅が
狭くなる代わりに推力の低下を招く不都合が生じるよう
になる。また、上記従来技術の車輪を反転させて、二輪
型式の歩行型作業車に対して各車輪のラグが機体の内方
に向けて突出する状態に装着することによって左右の車
輪間隔幅を狭くすることも考えられるが、この場合に
は、ラグによって跳ね上げられた土の捌け具合が悪くな
り、車輪が装着される車軸を備えたミッションケースと
の間に土や石などが持ち込まれて噛み込む不都合が生じ
る虞がある。
By the way, it is conceivable to reduce the width of the gap between the left and right wheels by shortening the protruding length of the lug in the above-mentioned conventional wheel, but the lug is formed to obtain thrust. The inconvenience of causing a reduction in thrust occurs instead of the width of the left and right wheels being narrowed. Further, by reversing the wheels of the above-mentioned conventional technology, the lugs of the respective wheels are attached to the two-wheel type walking work vehicle in such a state that the lugs project toward the inside of the machine body, thereby reducing the width between the left and right wheels. However, in this case, the looseness of the soil bounced up by the lugs deteriorates, and soil, stones, etc. are brought in and bitten between the mission case and the axle that the wheels are mounted on. Inconvenience may occur.

【0006】本発明の目的は、走行時の安定性に優れた
二輪型式の歩行型作業車を、推力の低下やラグによって
跳ね上げられた土の捌け具合が悪くなる不都合を招くこ
となく、作物間や畝間の狭い圃場でも使用できるように
する歩行型作業車用の車輪を提供することにある。
An object of the present invention is to provide a two-wheeled walk type work vehicle which is excellent in stability during traveling without cropping the inconvenience that the thrust is lowered and the dirt of the soil rebounded up by the lugs deteriorates. It is to provide a wheel for a walk-behind work vehicle that can be used even in a narrow field with a narrow gap or a furrow.

【0007】[0007]

【課題を解決するための手段】上記目的を達成するた
め、本発明のうちの請求項1記載の発明では、片側の横
外側方に向けて突出する状態に複数のラグが装備された
リムを、車軸に対して着脱自在に連結されるボス部に、
前記リムにおける前記ラグが突出しない側の側端部に対
して、該側端部と同じ側となる前記ボス部の側端部が、
前記ラグの突出方向に凹入変位する状態に連設した。
In order to achieve the above-mentioned object, in the invention according to claim 1 of the present invention, a rim equipped with a plurality of lugs in a state of protruding toward one lateral outer side is provided. , The boss that is detachably connected to the axle,
With respect to the side end on the side where the lug does not project in the rim, the side end of the boss portion on the same side as the side end,
The lugs are continuously arranged so as to be recessed and displaced in the protruding direction.

【0008】上記請求項1記載の発明によると、一般
に、歩行型作業車のミッションケースにおける車軸支承
部は、ミッションケースの左右両側方に膨出する状態に
形成されていることから、リムにおけるラグが突出しな
い側の側端部に対して、該側端部と同じ側となるボス部
の側端部がラグの突出方向に凹入変位する状態に、ボス
部にリムを連設して歩行型作業車用の車輪を構成したこ
とにより、この車輪を、二輪型式の歩行型作業車におけ
るミッションケースの左右両側から外側方に向けて突設
された各車軸に対して、リムにおけるラグが突出しない
側の側端部をミッションケース側に位置させる状態で装
着すれば、ミッションケースの膨出した車軸支承部を、
車輪におけるリムに対するボス部の凹入変位部分によっ
て覆うようにして避けることができるので、ラグの突出
長さを充分な推力の得られる長さに確保しながらも、左
右の車輪間隔幅を、作物間や畝間の狭い圃場でも使用で
きる程度に狭くすることができる。
According to the first aspect of the present invention, generally, the axle support portion in the mission case of the walk-behind work vehicle is formed to bulge to the left and right sides of the mission case. With respect to the side end on the side that does not project, the boss is walked by connecting the rim to the boss so that the side end of the boss on the same side as the side end is concavely displaced in the protruding direction of the lug. By configuring the wheels for the model work vehicle, the lugs on the rim protrude from the axles that project outward from the left and right sides of the mission case of the two-wheel type walk-type work vehicle. If you install it with the side end on the side not to be positioned on the mission case side, the swelled axle bearing part of the mission case
Since it can be avoided by covering it with the recessed displacement portion of the boss portion with respect to the rim of the wheel, while keeping the protruding length of the lug to a length where sufficient thrust can be obtained, the left and right wheel gap width is It can be made narrow enough to be used in fields with narrow spaces or ridges.

【0009】また、各車軸に対して車輪を、リムにおけ
るラグが突出しない側の側端部をミッションケース側に
位置させた状態、言い換えると、ラグが機体の横外側方
に向けて突出する状態に装着しながらも、左右の車輪間
隔幅を狭くすることができるので、ラグによって跳ね上
げられた土の捌け具合も円滑になる。つまり、車輪の装
着される車軸が突設されたミッションケースとの間に土
や石などが噛み込む不都合がない。
[0009] Further, with respect to each axle, a state in which the side end of the rim on the side where the lug does not project is located on the mission case side, in other words, the lug projects toward the lateral outer side of the machine body. Even if it is attached to the car, the width between the left and right wheels can be narrowed, so that the soil removed by the lugs can be removed smoothly. That is, there is no inconvenience that dirt, stones, or the like is caught between the wheel and the mission case on which the axle is mounted.

【0010】しかも、作物間や畝間が充分に広い圃場や
路上を走行させる際には、車輪を、各車軸に対してラグ
の突出端部をミッションケース側に位置させる状態で装
着すれば、左右の車輪間隔幅を広くすることもできるの
で、走行時の安定性を更に向上させることもできる。
Moreover, when traveling on a field or on a road where crops and ridges are sufficiently wide, if the wheels are mounted with the protruding ends of the lugs positioned on the mission case side with respect to the respective axles, Since the width between the wheels can be widened, the stability during traveling can be further improved.

【0011】従って、走行時の安定性に優れた二輪型式
の歩行型作業車を、推力の低下やラグによって跳ね上げ
られた土の捌け具合が悪くなる不都合を招くことなく、
作物間や畝間の狭い圃場でも使用できるようにする歩行
型作業車用の車輪を提供し得るに至った。
Therefore, a two-wheel type walkable work vehicle having excellent stability during traveling can be provided without inconvenience such as a decrease in thrust and a poor handling of soil rebounded by lugs.
A wheel for a walk-behind work vehicle that can be used even in a narrow field between crops and ridges can be provided.

【0012】本発明のうちの請求項2記載の発明では、
上記請求項1記載の発明に加えて、前記各ラグの突出端
部が、該突出端部と同じ側となる前記ボス部の側端部よ
りも横外側方に突出しない状態に設定した。
According to the second aspect of the present invention,
In addition to the invention described in claim 1, the projecting end portion of each lug is set so as not to project laterally outward from the side end portion of the boss portion on the same side as the projecting end portion.

【0013】上記請求項2記載の発明によると、リムに
おけるラグが突出しない側の側端部に対して、該側端部
と同じ側となるボス部の側端部がラグの突出方向に凹入
変位する状態にボス部にリムを連設したことにより、ラ
グの突出長さは充分な推力の得られる長さに確保できる
ことから、各ラグの突出端部が該突出端部と同じ側とな
るボス部の側端部よりも横外側方に突出しない状態に設
定したことによって、各ラグが不必要に長く形成される
ことを阻止できるようになる。つまり、左右の車輪間隔
幅を作物間や畝間の狭い圃場でも使用できる程度の狭さ
に確実に維持することができる。
According to the second aspect of the invention, with respect to the side end of the rim on which the lug does not project, the side end of the boss on the same side as the side end is recessed in the lug projecting direction. By connecting the rim to the boss in a state of being inserted and displaced, the protruding length of the lug can be ensured to be a length where sufficient thrust can be obtained, so that the protruding end of each lug is on the same side as the protruding end. By setting the boss so as not to project laterally outward from the side end of the boss, it is possible to prevent the lugs from being formed unnecessarily long. That is, it is possible to reliably maintain the width of the left and right wheels to be narrow enough to be used even in a field between crops or a narrow ridge.

【0014】また、各ラグの突出端部が該突出端部と同
じ側となるボス部の側端部よりも横外側方に突出しない
状態に設定したことによって、例えば、根深葱が栽培さ
れるような畝間が狭くて深く切り立った圃場では、ボス
部の側端部と畝側部との距離感から、畝側部に対するラ
グの突出端部の離間具合を容易に判断することができ
る。
Further, by setting the projecting end of each lug so as not to project laterally outward from the side end of the boss on the same side as the projecting end, for example, root deep-root is cultivated. In such a field where the ridges are narrow and deeply raised, it is possible to easily determine the degree of separation of the protruding end portion of the lug from the ridge side portion based on the sense of distance between the side end portion of the boss portion and the ridge side portion.

【0015】従って、二輪型式の歩行型作業車を、より
好適な状態で作物間や畝間の狭い圃場でも使用できるよ
うにする歩行型作業車用の車輪を提供し得るに至った。
Therefore, it has become possible to provide a wheel for a walk-behind work vehicle that enables a two-wheel walk-behind work vehicle to be used in a more suitable state even in a field with a narrow space between crops and ridges.

【0016】本発明のうちの請求項3記載の発明では、
上記請求項1または2記載の発明に加えて、前記各ラグ
の突出端部を、その外周側ほど前記各ラグの根元側に向
かって変位する状態に傾斜させた。
According to the third aspect of the present invention,
In addition to the invention described in claim 1 or 2, the projecting end portion of each lug is inclined so that the outer peripheral side thereof is displaced toward the root side of each lug.

【0017】上記請求項3記載の発明によると、ラグの
突出長さを充分な推力の得られる長さに確保しながら
も、より狭い畝間を走行できるようになる。
According to the third aspect of the present invention, it is possible to travel in a narrower ridge while securing the projecting length of the lug to a length that provides sufficient thrust.

【0018】従って、二輪型式の歩行型作業車を、より
作業性に優れたものにできる歩行型作業車用の車輪を提
供し得るに至った。
Therefore, it has become possible to provide a wheel for a walk-behind work vehicle capable of improving the workability of the two-wheel walk-behind work vehicle.

【0019】本発明のうちの請求項4記載の発明では、
ミッションケースの左右両側から外側方に向けて突設さ
れた各車軸に対して、片側の横外側方に向けて突出する
状態に複数のラグが装備されたリムを、前記車軸に対し
て着脱自在に連結されるボス部に、前記リムにおける前
記ラグが突出しない側の側端部に対して、該側端部と同
じ側となる前記ボス部の側端部が、前記ラグの突出方向
に凹入変位する状態に連設してある歩行型作業車用の車
輪を、前記ミッションケース側に前記リムの側端部を位
置させて、前記ラグを外側に向けて露出させる状態に装
着した。
In the invention according to claim 4 of the present invention,
For each axle protruding outward from both the left and right sides of the mission case, a rim equipped with a plurality of lugs that projects toward the lateral outer side on one side can be attached to and detached from the axle. In the boss portion connected to the side edge portion of the boss, which is on the same side as the side edge portion with respect to the side edge portion of the rim on which the lug does not protrude, is recessed in the protruding direction of the lug. A wheel for a walk-behind work vehicle, which is continuously provided in a state of being inserted and displaced, was mounted so that a side end portion of the rim was located on the mission case side and the lug was exposed toward the outside.

【0020】上記請求項4記載の発明によると、走行時
の安定性に優れた二輪型式の歩行型作業車を、車輪が作
物を踏み倒す、車輪が畝に乗り上がって走行時の安定性
が悪くなる、あるいは、畝の側面に伸びた作物の根をラ
グで傷付けるなどの不都合を招くことなく、充分な推力
が得られる状態で作物間や畝間の狭い圃場でも使用でき
るようになる。
According to the invention described in claim 4, the two-wheeled walk type work vehicle having excellent stability during traveling is provided with poor stability during traveling due to the wheels stepping down on the crops and the wheels climbing up the ridges. Or, it can be used even in a narrow field between crops or ridges with sufficient thrust without causing inconvenience such as damage to the roots of crops extended to the side of the ridge with rugs.

【0021】また、各車軸に対して車輪を、ミッション
ケース側にリムの側端部を位置させて、ラグを外側に向
けて露出させる状態に装着していることから、ラグによ
って跳ね上げられた土の捌け具合も円滑になる。つま
り、車輪の装着される車軸が突設されたミッションケー
スとの間に土や石などが噛み込む不都合がない。
Further, since the wheels are attached to the respective axles so that the side ends of the rim are located on the mission case side and the lugs are exposed to the outside, they are flipped up by the lugs. The soil will be removed smoothly. That is, there is no inconvenience that dirt, stones, or the like is caught between the wheel and the mission case on which the axle is mounted.

【0022】従って、推力の低下やラグによって跳ね上
げられた土の捌け具合が悪くなる不都合を招くことな
く、作物間や畝間の狭い圃場でも使用できる走行時の安
定性に優れた歩行型作業車を提供し得るに至った。
Therefore, a walk-type work vehicle having excellent stability during running that can be used even in a narrow field between crops or ridges without causing a disadvantage that the looseness of soil thrown up by the lag and the looseness of the soil caused by lugs deteriorates. Can be provided.

【0023】[0023]

【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0024】図1には歩行型作業車の全体側面が示され
ており、この歩行型作業車は、機体前部に搭載されたエ
ンジン1、エンジン1の後方に配備されたミッションケ
ース2、エンジン1からの動力をミッションケース2に
伝達する入り状態と伝達しない切り状態とに切り換え操
作されるベルトテンション式の主クラッチ3、ミッショ
ンケース2下部の左右両側から外側方に向けて突設され
た各車軸4に装着された左右一対の車輪5、および、ミ
ッションケース2の上部から後方に向けて延設された操
縦ハンドル6、などによって構成されている。尚、車体
後部には、作業装置の一例であるロータリ耕耘装置7が
連結されており、作物間における中耕作業や畝間におけ
る中耕培土作業を行えるようになっている。
FIG. 1 shows the entire side surface of a walk-behind work vehicle. This walk-behind work vehicle comprises an engine 1 mounted on the front of the machine body, a mission case 2 arranged behind the engine 1, and an engine. A belt-tension-type main clutch 3 that is operated to switch between an on-state and a disengaged state in which the power from 1 is transmitted to the transmission case 2, and each of which is projected from the left and right sides of the lower portion of the transmission case 2 toward the outside. It is composed of a pair of left and right wheels 5 mounted on the axle 4, a steering handle 6 extending rearward from an upper portion of the mission case 2, and the like. A rotary tilling device 7, which is an example of a working device, is connected to the rear part of the vehicle body so that the tilling work between crops and the tilling soil work between furrows can be performed.

【0025】操縦ハンドル6の左右には、ミッションケ
ース2に内蔵された左右の各操向クラッチ(図示せず)
を各車輪5に動力を伝達する入り状態と伝達しない切り
状態とに切り換え操作する操向クラッチレバー8が装備
されており、この操向クラッチレバー8の操作によって
旋回走行を容易に行えるようになっている。
Left and right steering clutches (not shown) built in the mission case 2 are provided on the left and right sides of the steering wheel 6.
Is equipped with a steering clutch lever 8 for switching between an on-state for transmitting power to each wheel 5 and a disengaged state for not transmitting power. By operating this steering clutch lever 8, turning traveling can be performed easily. ing.

【0026】図2に示すように、各車軸4が突設された
ミッションケース2下部の車軸支承部2Aは、各車軸4
を支持するベアリング(図示せず)が内蔵されているこ
とから、ミッションケース2の左右両側方に膨出する状
態に形成されている。
As shown in FIG. 2, the axle support portions 2A at the lower portion of the mission case 2 on which the axles 4 are provided in a projecting manner,
Since a bearing (not shown) for supporting the transmission is built in, it is formed in a state of bulging to the left and right sides of the mission case 2.

【0027】図1〜図3に示すように、車輪5は、片側
の横外側方に向けて突出する状態に複数のラグ10Aが
装備されたリム10を、車軸4に対して着脱自在にピン
連結されるボス部11に、リム10におけるラグ10A
が突出しない側の側端部10aに対して、該側端部10
aと同じ側となるボス部11の側端部11aが、ラグ1
0Aの突出方向に凹入変位する状態に、スポーク12を
介して連設することによって構成されている。リム10
は丸鋼材からなり、複数のラグ10Aが片側の横外側方
に向けて突出する状態に形成されたゴムタイヤAが焼き
付けにより固着されることによって、片側の横外側方に
向けて突出する複数のラグ10Aを装備する状態に構成
されるようになっている。
As shown in FIGS. 1 to 3, the wheel 5 has a rim 10 provided with a plurality of lugs 10A in a state of protruding laterally outward on one side, and is removably pinned to the axle 4. The boss 10 connected to the lug 10A of the rim 10
To the side end 10a on the side where the
The side end 11a of the boss 11 on the same side as the a is the lug 1
The spokes 12 are continuously provided in a state of being recessed and displaced in the protruding direction of 0A. Rim 10
Is made of a round steel material, and a plurality of lugs 10 </ b> A protruding in one lateral and lateral direction are formed by sticking a rubber tire A formed in a state in which the plurality of lugs 10 </ b> A project toward one lateral and lateral direction. It is configured to be equipped with 10A.

【0028】そして、このように構成された車輪5を、
図2に示すように、ミッションケース2の左右両側から
外側方に向けて突設された各車軸4に対して、リム10
におけるラグ10Aが突出しない側の側端部10aをミ
ッションケース2側に位置させる状態で装着すれば、ミ
ッションケース2の膨出した車軸支承部2Aを、車輪5
におけるリム10に対するボス部11の凹入変位部分に
よって覆うようにして避けることができるようになり、
ラグ10Aの突出長さを充分な推力の得られる長さに確
保しながらも、左右の車輪間隔幅Lを、作物間や畝間の
狭い圃場でも使用できる程度に狭くすることができるの
である。また、各車軸4に対して車輪5を、リム10に
おけるラグ10Aが突出しない側の側端部10aをミッ
ションケース2側に位置させた状態、言い換えると、ラ
グ10Aが機体の横外側方に向けて突出する状態に装着
しながらも、左右の車輪間隔幅Lを狭くすることができ
ることから、ラグ10Aによって跳ね上げられた土の捌
け具合も円滑になり、車輪5とミッションケース2との
間に土や石などが噛み込む不都合をなくすこともできる
のである。しかも、作物間や畝間が充分に広い圃場や路
上を走行させる際には、図4に示すように、車輪5を、
各車軸4に対してラグ10Aの突出端10bがミッショ
ンケース2側に位置する状態に装着すれば、左右の車輪
間隔幅Lを広くすることもできるので、走行時の安定性
を更に向上させることもできるのである。
Then, the wheel 5 thus constructed is
As shown in FIG. 2, the rim 10 is attached to each of the axles 4 protruding outward from the left and right sides of the mission case 2.
If the side end portion 10a on the side where the lug 10A does not project is located on the mission case 2 side, the swelled axle bearing portion 2A of the mission case 2 is attached to the wheel 5
It can be avoided by covering it with the recessed displacement portion of the boss portion 11 with respect to the rim 10.
It is possible to secure the projection length of the lug 10A to a length that can obtain a sufficient thrust force, and also to make the left and right wheel gap width L narrow enough to be used even in a narrow field between crops or ridges. Further, with respect to each axle 4, the wheel 5 is positioned such that the side end 10a of the rim 10 on the side where the lug 10A does not project is located on the mission case 2 side, in other words, the lug 10A faces the lateral outside of the machine body. Since the width L between the left and right wheels can be narrowed even when the wheel 5 is mounted in a projecting state, the looseness of the soil bounced up by the lug 10A also becomes smooth, and the gap between the wheel 5 and the mission case 2 becomes smooth. It is also possible to eliminate the inconvenience of dirt and stones getting caught. Moreover, as shown in FIG. 4, when the vehicle is run on a field or on a road where crops and ridges are wide enough,
If the protruding ends 10b of the lugs 10A are attached to the axles 4 so as to be located on the mission case 2 side, the left and right wheel gap width L can be widened, so that the stability during traveling is further improved. It can also be done.

【0029】従って、この車輪5を装着することによっ
て、走行時の安定性に優れた二輪型式の歩行型作業車
を、推力の低下やラグによって跳ね上げられた土の捌け
具合が悪くなる不都合を招くことなく、作物間や畝間の
狭い圃場でも使用することができるのである。
Therefore, by mounting the wheels 5, the two-wheel type walk type work vehicle having excellent stability during traveling will be inconvenient because the thrust will be reduced and the looseness of the soil rebounded by the lugs will deteriorate. It can also be used in narrow fields between crops and ridges without inviting.

【0030】図2に示すように、車輪5は、各ラグ10
Aの突出端部10bが、該突出端部10bと同じ側とな
るボス部11の側端部11bよりも横外側方に突出しな
い状態に設定されており、これによって、各ラグ10A
が不必要に長く形成され、左右の車輪間隔幅Lが作物間
や畝間の狭い圃場で使用できない長さになることを阻止
している。また、各ラグ10Aの突出端部10bが該突
出端部10bと同じ側となるボス部11の側端部11b
よりも横外側方に突出しない状態に設定したことによっ
て、例えば、図2において二点鎖線で示す、畝間が狭く
て畝が深く切り立った根深葱が栽培されるような圃場で
は、ボス部11の外側端部11bと畝側部との距離感か
ら、畝側部に対するラグ10Aの突出端部10bの離間
具合を容易に判断することができるようになる。
As shown in FIG. 2, the wheel 5 has each lug 10
The projecting end portion 10b of A is set so as not to project laterally outward than the side end portion 11b of the boss portion 11 on the same side as the projecting end portion 10b, whereby each lug 10A.
Is formed to be unnecessarily long, and the width L of the left and right wheels is prevented from becoming a length that cannot be used in a narrow field between crops or ridges. Also, the side end portion 11b of the boss portion 11 in which the protruding end portion 10b of each lug 10A is on the same side as the protruding end portion 10b.
By setting in such a state that it does not project laterally outward more than, for example, in a field where root ridges with narrow ridges and deep ridges are cultivated, which is indicated by a chain double-dashed line in FIG. From the sense of distance between the outer end portion 11b and the ridge side portion, it is possible to easily determine the degree of separation of the protruding end portion 10b of the lug 10A from the ridge side portion.

【0031】従って、上述のように車輪5における各ラ
グ10Aの突出長さを設定することによって、より好適
な状態で、二輪型式の歩行型作業車を作物間や畝間の狭
い圃場で使用することができるのである。
Therefore, by setting the projecting length of each lug 10A on the wheel 5 as described above, it is possible to use the two-wheel type walkable work vehicle in a more suitable state in a narrow field between crops or ridges. Can be done.

【0032】また、図2に示すように、車輪5における
各ラグ10Aの突出端部11bは、その外周側ほど各ラ
グ10Aの根元側に向かって変位する状態に傾斜してお
り、これによって、ラグ10Aの突出長さを充分な推力
の得られる長さに確保しながらも、図2において実線で
示す、畝が低いながらも畝間がより狭くなった圃場で
も、畝の側部に伸びた作物の根を車輪5で踏み付けるこ
とによって傷付けるなどの不都合なく、二輪型式の歩行
型作業車を走行させることができるようになっている。
つまり、二輪型式の歩行型作業車をより作業性に優れた
ものにできるのである。
Further, as shown in FIG. 2, the protruding end portion 11b of each lug 10A in the wheel 5 is inclined toward the root side of each lug 10A toward the outer peripheral side thereof. While securing the projecting length of the lug 10A to a length sufficient to obtain thrust, even in the field shown by the solid line in FIG. 2 where the ridges are narrow but the ridges are narrower, the crops that have extended to the side of the ridges. The two-wheeled walk type work vehicle can be driven without any inconvenience such as being damaged by stepping on the root of the vehicle with the wheel 5.
In other words, the two-wheeled walking work vehicle can be made more workable.

【0033】〔別実施形態〕以下、本発明の別の実施の
形態を列記する。 車輪5における各ラグ10Aの長さを、各ラグ10
Aの突出端部10bが、該突出端部10bと同じ側とな
るボス部11の側端部11bよりも横外側方に突出する
状態に設定してもよい。 車輪5における各ラグ10Aの突出端部11bを、
垂直方向に切り立った状態としてもよく、また、その外
周側ほど各ラグ10Aの根元側に向かって変位する状態
に湾曲させるようにしてもよい。 リム10を、平鋼材やパイプ材などに、複数のラグ
10Aが片側の横外側方に向けて突出する状態に形成さ
れたゴムタイヤAを焼き付け固着することによって構成
するようにしてもよい。 スポーク12の本数および形状などは種々の変更が
可能なものである。 リム10とボス部11とをディスクを介して連設す
るようにしてもよい。 ラグ10Aをリム10と同じ材質でリム10に一体
形成して鉄車輪を構成するようにしてもよく、また、ラ
グ10Aを金属材や樹脂材で構成するとともにボルトや
リベットなどによってリム10に装着するようにしても
よい。
[Other Embodiments] Other embodiments of the present invention will be listed below. The length of each lug 10A on the wheel 5 is calculated as follows.
The protruding end portion 10b of A may be set in a state of protruding laterally outward from the side end portion 11b of the boss portion 11 on the same side as the protruding end portion 10b. The protruding end 11b of each lug 10A on the wheel 5 is
It may be in a state of standing upright in the vertical direction, or may be curved so as to be displaced toward the root side of each lug 10A toward the outer peripheral side thereof. The rim 10 may be configured by baking and fixing to a flat steel material, a pipe material, or the like, a rubber tire A formed in a state in which a plurality of lugs 10A project toward one lateral outside. The number and shape of the spokes 12 can be variously changed. The rim 10 and the boss portion 11 may be connected to each other via a disc. The lug 10A may be integrally formed on the rim 10 with the same material as that of the rim 10 to form an iron wheel. Alternatively, the lug 10A may be formed of a metal material or a resin material and attached to the rim 10 by a bolt or a rivet. You may do it.

【0034】尚、特許請求の範囲の項に図面との対照を
便利にするために符号を記すが、該記入により本発明は
添付図面の構成に限定されるものではない。
It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

【図面の簡単な説明】[Brief description of drawings]

【図1】歩行型作業車の全体側面図1] Overall side view of a walk-behind work vehicle

【図2】車輪の構成および車軸に対する装着状態の一例
を示す一部切り欠き正面図
FIG. 2 is a partially cutaway front view showing an example of a configuration of wheels and a mounting state on an axle.

【図3】車輪の構成を示す側面図FIG. 3 is a side view showing a configuration of wheels.

【図4】車軸に対する車輪の他の装着状態を示す正面図FIG. 4 is a front view showing another mounting state of the wheels on the axle.

【符号の説明】[Explanation of symbols]

2 ミッションケース 4 車軸 5 車輪 10 リム 10A ラグ 10a 側端部 10b 突出端部 11 ボス部 11a 側端部 11b 側端部 2 Mission Case 4 Axle 5 Wheel 10 Rim 10A Lug 10a Side End 10b Projecting End 11 Boss 11a Side End 11b Side End

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 片側の横外側方に向けて突出する状態に
複数のラグ(10A)が装備されたリム(10)を、車
軸(4)に対して着脱自在に連結されるボス部(11)
に、前記リム(10)における前記ラグ(10A)が突
出しない側の側端部(10a)に対して、該側端部(1
0a)と同じ側となる前記ボス部(11)の側端部(1
1a)が、前記ラグ(10A)の突出方向に凹入変位す
る状態に連設してある歩行型作業車用の車輪。
1. A boss portion (11) to which a rim (10) equipped with a plurality of lugs (10A) in a state of protruding toward one lateral side outward is detachably connected to an axle (4). )
In addition, with respect to the side end (10a) of the rim (10) on the side where the lug (10A) does not project, the side end (1)
0a) on the same side as the side end (1) of the boss (11).
1a) is a wheel for a walk-behind work vehicle, which is continuously provided so as to be recessed and displaced in the protruding direction of the lug (10A).
【請求項2】 前記各ラグ(10A)の突出端部(10
b)が、該突出端部(10b)と同じ側となる前記ボス
部(11)の側端部(11b)よりも横外側方に突出し
ない状態に設定してある請求項1記載の歩行型作業車用
の車輪。
2. A protruding end (10) of each lug (10A).
The walking type according to claim 1, wherein b) is set so as not to project laterally outward from a side end portion (11b) of the boss portion (11) on the same side as the protruding end portion (10b). Wheels for work vehicles.
【請求項3】 前記各ラグ(10A)の突出端部(10
b)を、その外周側ほど前記各ラグ(10A)の根元側
に向かって変位する状態に傾斜させてある請求項1また
は2記載の歩行型作業車用の車輪。
3. A protruding end (10) of each lug (10A).
The wheel for a walk-behind work vehicle according to claim 1 or 2, wherein b) is inclined so that the outer peripheral side thereof is displaced toward the root side of each of the lugs (10A).
【請求項4】 ミッションケース(2)の左右両側から
外側方に向けて突設された各車軸(4)に対して、 片側の横外側方に向けて突出する状態に複数のラグ(1
0A)が装備されたリム(10)を、前記車軸(4)に
対して着脱自在に連結されるボス部(11)に、前記リ
ム(10)における前記ラグ(10A)が突出しない側
の側端部(10a)に対して、該側端部(10a)と同
じ側となる前記ボス部(11)の側端部(11a)が、
前記ラグ(10A)の突出方向に凹入変位する状態に連
設してある歩行型作業車用の車輪(5)を、 前記ミッションケース(2)側に前記リム(10)の側
端部(10a)を位置させて、前記ラグ(10A)を外
側に向けて露出させる状態に装着してある歩行型作業車
の走行装置。
4. A plurality of lugs (1) are provided so as to project laterally outward on one side with respect to each axle (4) projecting outward from both left and right sides of the mission case (2).
The rim (10) equipped with 0A) is attached to the boss (11) that is detachably connected to the axle (4), on the side where the lug (10A) of the rim (10) does not project. With respect to the end portion (10a), the side end portion (11a) of the boss portion (11) on the same side as the side end portion (10a) is
A wheel (5) for a walk-behind work vehicle, which is continuously provided in a state of being recessed and displaced in the protruding direction of the lug (10A), has a side end portion (of the rim (10) on the mission case (2) side. 10a) is positioned so that the lug (10A) is mounted to expose the lug (10A) toward the outside.
JP26132795A 1995-10-09 1995-10-09 Wheel for walking type work vehicle and traveling device of walking type work vehicle using the same Pending JPH0999704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26132795A JPH0999704A (en) 1995-10-09 1995-10-09 Wheel for walking type work vehicle and traveling device of walking type work vehicle using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26132795A JPH0999704A (en) 1995-10-09 1995-10-09 Wheel for walking type work vehicle and traveling device of walking type work vehicle using the same

Publications (1)

Publication Number Publication Date
JPH0999704A true JPH0999704A (en) 1997-04-15

Family

ID=17360278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26132795A Pending JPH0999704A (en) 1995-10-09 1995-10-09 Wheel for walking type work vehicle and traveling device of walking type work vehicle using the same

Country Status (1)

Country Link
JP (1) JPH0999704A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011218888A (en) * 2010-04-06 2011-11-04 Iseki & Co Ltd Traveling wheel of power tiller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011218888A (en) * 2010-04-06 2011-11-04 Iseki & Co Ltd Traveling wheel of power tiller

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