JP2019182014A - Rubber crawler - Google Patents

Rubber crawler Download PDF

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JP2019182014A
JP2019182014A JP2018071582A JP2018071582A JP2019182014A JP 2019182014 A JP2019182014 A JP 2019182014A JP 2018071582 A JP2018071582 A JP 2018071582A JP 2018071582 A JP2018071582 A JP 2018071582A JP 2019182014 A JP2019182014 A JP 2019182014A
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crawler
main body
string
lug
rubber crawler
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靖夫 下園
Yasuo Shimozono
靖夫 下園
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Bridgestone Corp
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Abstract

To provide a rubber crawler that is superb in mud separability despite a simple structure.SOLUTION: A rubber crawler 10 includes an endless belt-like crawler body 28 and plural lugs 42a and 42b that are jutted out of a periphery 28b of the crawler body 28. The rubber crawler further includes a string-like member 38 which is attached to the crawler body 28 so that it stretches over a region 36 on the periphery 28b of the crawler body 28 where the lugs 42a and 42b do not exist, and at least part or the whole of which is not fixed to the periphery 28b. The length of the string-like member 38 is adjusted not to exceed the jutting height of the lugs 42a and 42b when the string-like member is attached.SELECTED DRAWING: Figure 2

Description

本発明は、ゴムクローラ、特にクローラ本体部の外周面にラグを有するゴムクローラに関する。   The present invention relates to a rubber crawler, and more particularly to a rubber crawler having a lug on the outer peripheral surface of a crawler main body.

ゴムクローラはゴム製の無限軌道帯であり、最初に農業機器の足廻り部品として開発されて以来、活発な研究・開発が行われ、現在では様々の用途に普及拡大し、その構成・種類も多岐に亘っている。   The rubber crawler is an endless track made of rubber and has been actively researched and developed since it was first developed as an undercarriage part for agricultural equipment. There are a wide variety.

このゴムクローラを例えば農業機器の足廻り部品に用いる場合、ゴムクローラによる機体の不整地走行性、所謂牽引力を向上するために、無端帯状に形成されたクローラ本体部の外周面に、クローラ本体部の幅方向に伸長するラグを、例えば、クローラ本体部の周方向に一定の間隔で突設する場合がある。ただし、ラグがクローラ本体部の幅方向に連続して伸長すると、ラグ間に泥が詰まり易く泥が抜け難いという問題が生じる。   When this rubber crawler is used, for example, as an undercarriage part for agricultural equipment, the crawler body portion is formed on the outer peripheral surface of the endless belt-shaped crawler body portion in order to improve the rough terrain traveling property of the machine body by the rubber crawler. In some cases, the lugs extending in the width direction are projected at regular intervals in the circumferential direction of the crawler body. However, when the lug continuously extends in the width direction of the crawler main body, there arises a problem that mud is easily clogged between the lugs and it is difficult to remove the mud.

そこで、特許文献１では、クローラ本体部の外周面の幅方向中央部にラグの離間部を設け、この離間部によってラグをクローラ本体部の幅方向に離間し、ラグに詰まる泥の量を低減している。更にクローラ本体部の幅方向の両端部の内周面を幅方向中央部の内周面よりも内方側に位置させることで、クローラ本体部の幅方向中央部の内周面をアイドラ等の周囲に接触させて巻き掛けて走行した場合、幅方向の両端部の内周面の位置が中央部の内周面の位置と同じになるようにクローラ本体部が変形するので外周面に付着した泥が剥離する。   Therefore, in Patent Document 1, a lug separation portion is provided at the center in the width direction of the outer peripheral surface of the crawler main body, and the lug is separated in the width direction of the crawler main body by this separation portion to reduce the amount of mud clogged in the lug. is doing. Furthermore, by positioning the inner peripheral surface of both ends in the width direction of the crawler main body portion inward from the inner peripheral surface of the central portion in the width direction, the inner peripheral surface of the central portion in the width direction of the crawler main body portion When running with the belt in contact with the surroundings, the crawler body part deforms so that the position of the inner peripheral surface of both ends in the width direction is the same as the position of the inner peripheral surface of the central part, so it adheres to the outer peripheral surface. Mud peels off.

特開２００９−１５４６８６号公報JP 2009-154686 A

しかしながら、前述の特許文献１に記載のゴムクローラでは、ラグ間に詰まる泥の量を低減し、外周面に付着した泥を剥離させることは可能であっても、泥が詰まらないための泥離れ性には改善の余地がある。   However, in the rubber crawler described in Patent Document 1, the amount of mud clogged between the lugs can be reduced, and the mud adhering to the outer peripheral surface can be peeled off, but the mud is separated so that the mud is not clogged. There is room for improvement in sex.

本発明は、上記課題に鑑みて為されたものであり、その目的は、簡単な構成で泥離れ性に優れたゴムクローラを提供することにある。   The present invention has been made in view of the above problems, and an object of the present invention is to provide a rubber crawler having a simple configuration and excellent mud separation performance.

上記目的を達成するため、請求項１に記載のゴムクローラは、
無端帯状のクローラ本体部と、該クローラ本体部の外周面に突出形成された複数のラグと、を有するゴムクローラにおいて、
前記クローラ本体部の外周面上の前記ラグの存在しない領域に伸長するように且つ少なくとも一部又は全部が前記外周面に非固定の状態で前記クローラ本体部に取り付けられた紐状部材を備えたことを特徴とする。 In order to achieve the above object, the rubber crawler according to claim 1,
In a rubber crawler having an endless belt-like crawler main body portion and a plurality of lugs protrudingly formed on the outer peripheral surface of the crawler main body portion,
A string-like member attached to the crawler main body so as to extend to an area where the lug does not exist on the outer peripheral surface of the crawler main body and at least a part or all of the crawler main body is not fixed to the outer peripheral surface. It is characterized by that.

この構成により、紐状部材はゴムクローラの走行中に、クローラ本体部の外周面上のラグの存在しない領域で、一部又は全部が非固定の状態で取り付けられているので、クローラ本体部の外周面に対して、離反又は移動可能な状態に置かれている。すなわち、ゴムクローラの走行時においては、紐状部材は揺動する状態となる。   With this configuration, the string-like member is attached in a non-fixed state in a region where there is no lug on the outer peripheral surface of the crawler main body during traveling of the rubber crawler. It is placed in a state where it can be separated or moved with respect to the outer peripheral surface. That is, when the rubber crawler is traveling, the string-like member is in a swinging state.

したがって、ゴムクローラが農地等を走行し、ラグ間に泥が堆積する可能性の有る状況において、走行中に揺動する紐状部材の存在する部分においては、泥が付着しにくい状態が得られる。特に、泥が付き始める段階で、紐状部材はほぼ揺動可能な状態にあるので、泥付着の初期段階での泥の付着しにくい状況が生じ、ゴムクローラの泥離れ性が向上する。   Therefore, in a situation where the rubber crawler travels on farmland or the like and mud may accumulate between lugs, a state in which mud hardly adheres is obtained in a portion where the string-like member that swings during traveling exists. . In particular, since the string-like member is in a swingable state at the stage where mud begins to attach, a situation in which mud hardly adheres at the initial stage of mud adhesion occurs, and the mud separation performance of the rubber crawler is improved.

請求項２に記載のゴムクローラは、請求項１に記載のゴムクローラにおいて、
前記ラグの存在しない領域は、前記ラグに挟まれて前記クローラ本体部の周方向に一又は複数列存在するラグの周方向不存在領域であり、前記紐状部材は、無端状に構成され、該紐状部材の前記クローラ本体部への取り付けは、前記ラグの周方向不存在領域に前記クローラ本体部に対して非固定状態で行われたことを特徴とする。 The rubber crawler according to claim 2 is the rubber crawler according to claim 1,
The region where the lug is not present is a circumferential absence region of the lug that is sandwiched between the lugs and exists in one or more rows in the circumferential direction of the crawler main body, and the string-like member is configured to be endless. The string-shaped member is attached to the crawler main body in a non-fixed state with respect to the crawler main body in the circumferential absence region of the lug.

この構成により、紐状部材は、無端状に構成され、ゴムクローラ走行中、常に、ラグの周方向不存在領域で全体が非固定の状態にある。すなわち、ラグに挟まれた領域内で周方向及び幅方向に移動、揺動が可能な状態にある。したがって、特別な固定作業を行うことなく、すなわち、リング状の紐状部材を上記ラグの周方向不存在領域に取り付けるだけで、走行中にもクローラ本体部から脱落しない状態が確保されるとともに上記請求項１の作用を良好に得ることができる。   With this configuration, the string-like member is formed in an endless shape, and is always in an unfixed state in the circumferential absence region of the lug during the rubber crawler traveling. That is, it can move and swing in the circumferential direction and the width direction within the region sandwiched between the lugs. Therefore, without performing any special fixing work, that is, only by attaching the ring-shaped string-like member to the circumferentially absent region of the lug, a state where it does not fall off from the crawler main body during traveling is secured and the above-mentioned The effect of claim 1 can be obtained satisfactorily.

また、周方向不存在領域が複数列存在する場合は、同様の効果がそれぞれの周方向不存在領域で得られるので、ゴムクローラの泥離れ性はより一層向上する。   Further, when there are a plurality of circumferentially absent regions, the same effect can be obtained in each circumferentially absent region, and therefore the rubber crawler separation performance is further improved.

請求項３に記載のゴムクローラは、請求項１に記載のゴムクローラにおいて、
前記ラグの存在しない領域は、前記ラグに挟まれて前記クローラ本体部の幅方向に一又は複数列存在するラグの幅方向不存在領域であり、前記紐状部材の前記クローラ本体部への取り付けは、該紐状部材が、前記ラグの幅方向不存在領域の全幅長に亘って伸長し、両端が前記クローラ本体部に対して固定されることで行われたことを特徴とする。 The rubber crawler according to claim 3 is the rubber crawler according to claim 1,
The region where the lug is not present is a region where the lug is not present in the width direction of one or more rows in the width direction of the crawler main body between the lugs, and the string member is attached to the crawler main body. Is characterized in that the string-like member extends over the entire width of the lug width direction non-existing region and both ends are fixed to the crawler main body.

この構成により、クローラ本体部の幅方向に連続するラグの存在しない幅方向領域において、取り付けられた紐状部材の動きにより泥詰まりを効果的に防止することが可能である。また、紐状部材はクローラ本体部に固定されているので、ゴムクローラの走行性を損なわずに泥離れ性の効果を奏することが可能である。   With this configuration, it is possible to effectively prevent mud clogging by the movement of the attached string-like member in the width direction region where there is no lug continuous in the width direction of the crawler main body. In addition, since the string-like member is fixed to the crawler main body, it is possible to achieve a mud separation effect without impairing the running performance of the rubber crawler.

また、幅方向不存在領域が複数列存在する場合は、トータルとしてより長い紐状部材をクローラ本体部に取り付けたこととなり、ゴムクローラの全体としての泥離れ性はより一層向上する。   Further, when there are a plurality of rows in the absence of the width direction, a longer string-like member is attached to the crawler main body as a total, and the mud separation performance as a whole of the rubber crawler is further improved.

請求項４に記載のゴムクローラは、請求項１〜３に記載のゴムクローラにおいて、
前記紐状部材には、該紐状部材の伸長方向と略直交する方向に前記ラグと干渉しない位置で伸長する翼部材が設けられたことを特徴とする。 The rubber crawler according to claim 4 is the rubber crawler according to claims 1 to 3,
The string-like member is provided with a wing member that extends at a position that does not interfere with the lug in a direction substantially orthogonal to the extension direction of the string-like member.

この構成により、紐状部材と翼部材との交差領域において、より広範囲に亘り泥離れ性を向上させることができる。   With this configuration, it is possible to improve the mud separation performance over a wider range in the intersection region between the string-like member and the wing member.

請求項５に記載のゴムクローラは、請求項１〜４に記載のゴムクローラにおいて、
前記紐状部材の直径は、前記ラグの突出高さの５％〜９５％であることを特徴とする。 The rubber crawler according to claim 5 is the rubber crawler according to claims 1 to 4,
The string-shaped member has a diameter of 5% to 95% of a protruding height of the lug.

この構成は、泥離れ性を効果的に向上するための紐状部材の直径を示したものである。この範囲より小さければ泥離れ性が向上せず、この範囲より大きければゴムクローラの走行性に支障を来す。すなわち、紐状部材の直径がこの範囲にあれば、グリップ力の低下を抑制しつつ、泥離れ性を向上することが可能である。   This configuration shows the diameter of the string-like member for effectively improving the mud separation property. If it is smaller than this range, the muddy separation performance will not be improved, and if it is larger than this range, the running performance of the rubber crawler will be hindered. That is, when the diameter of the string-like member is within this range, it is possible to improve the mud separation property while suppressing a decrease in grip force.

本発明のゴムクローラによれば、ラグの存在しない領域に取り付けられる紐状部材は、ゴムクローラの走行中に、クローラ本体部の外周面に対して、離反又は移動可能な状態に置かれる。すなわち、ゴムクローラの走行時においては、紐状部材は揺動する状態となる。したがって、ゴムクローラが農地等を走行し、ラグ間に泥が堆積する可能性の有る状況において、走行中に揺動する紐状部材の存在する部分においては、泥が付着しにくい状態が得られ、簡単な構成でゴムクローラの泥離れ性を向上することができる。   According to the rubber crawler of the present invention, the string-like member attached to the region where the lug does not exist is placed in a state where it can be separated or moved with respect to the outer peripheral surface of the crawler main body during the running of the rubber crawler. That is, when the rubber crawler is traveling, the string-like member is in a swinging state. Therefore, in a situation where a rubber crawler travels on farmland or the like and mud may accumulate between lugs, a state in which mud hardly adheres is obtained in a portion where a string-like member that swings during traveling exists. The rubber crawler can be improved with a simple configuration.

本発明のゴムクローラの第１の実施の形態に係り、クローラ本体部の周方向に紐状部材を取り付けたゴムクローラをフレームに取付けた状態の正面面を示す。The front surface of the state which attached the rubber crawler which attached the string-like member to the circumferential direction of the crawler main-body part according to 1st Embodiment of the rubber crawler of this invention was shown. 図１のゴムクローラの外周面を示す平面図である。It is a top view which shows the outer peripheral surface of the rubber crawler of FIG. 図２に示すゴムクローラのＡ−Ａ断面図である。It is AA sectional drawing of the rubber crawler shown in FIG. 本発明のゴムクローラの第２の実施の形態に係り、クローラ本体部の幅方向に紐状部材を取り付けたゴムクローラの外周面を示す平面図である。It is a top view which shows the outer peripheral surface of the rubber crawler which concerns on 2nd Embodiment of the rubber crawler of this invention, and attached the string-like member to the width direction of the crawler main-body part. 図４に示すゴムクローラのＢ−Ｂ断面図である。It is BB sectional drawing of the rubber crawler shown in FIG.

本発明の実施の形態を以下、図面を用いて詳述する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

（第１の実施の形態）
図１は、本発明のゴムクローラの第１の実施の形態に係り、クローラ本体部２８の周方向に紐状部材３８取り付けたゴムクローラ１０をフレーム（機体）１２に取付けた状態の正面図を示す。図２は、図１のゴムクローラ１０の外周面２８ｂを示す平面図を示す。図３は、図２に示すゴムクローラ１０のＡ−Ａ断面図を示す。 (First embodiment)
FIG. 1 is a front view of a rubber crawler according to a first embodiment of the present invention in a state where a rubber crawler 10 attached with a string-like member 38 in the circumferential direction of a crawler main body 28 is attached to a frame (airframe) 12. Show. FIG. 2 is a plan view showing the outer peripheral surface 28b of the rubber crawler 10 of FIG. FIG. 3 is a cross-sectional view of the rubber crawler 10 shown in FIG.

本実施の形態のゴムクローラ１０は、例えば農業機器の足廻り部品として用いられるゴム製の無限軌道帯である。このゴムクローラ１０は、駆動輪１４及び遊動輪１６を両端（進行方向前後端）として掛け回される。   The rubber crawler 10 of the present embodiment is a rubber endless track used as, for example, an undercarriage part of agricultural equipment. The rubber crawler 10 is wound around the drive wheel 14 and the idler wheel 16 as both ends (front and rear ends in the traveling direction).

駆動輪１４は、例えば歯部１４ａを有するスプロケットであり、回転軸１４ｂを中心に、図示しない駆動源によって回転駆動される。遊動輪１６は、２枚のフランジ部１６ａを回転軸１６ｂで連結して構成されている。駆動輪１４と遊動輪１６の間の下部、つまり移動路面側（地面側）には、複数の、図では３つの転輪１８が配置されている。この転輪１８も遊動輪１６と同じく、２枚のフランジ部１８ａを回転軸１８ｂで連結して構成されている。   The drive wheel 14 is, for example, a sprocket having a tooth portion 14a, and is driven to rotate about a rotation shaft 14b by a drive source (not shown). The idler wheel 16 is configured by connecting two flange portions 16a with a rotation shaft 16b. In the lower part between the driving wheel 14 and the idle wheel 16, that is, on the moving road surface side (ground side), a plurality of, in the drawing, three rolling wheels 18 are arranged. As with the idler wheel 16, the roller wheel 18 is configured by connecting two flange portions 18a with a rotating shaft 18b.

無限軌道帯であるゴムクローラ１０の主体は、無端帯状のゴム製のクローラ本体部２８によって構成されている。クローラ本体部２８には、周方向に所定の間隔をおいて芯金３２が配設されている。芯金３２は、その両翼部をクローラ本体部２８の幅方向に合わせて埋設され、幅方向の中央には、１対の案内突起部３４、３４がクローラ本体部２８の内周面２８ａ側に突出して形成されている。   The main body of the rubber crawler 10 which is an endless track band is constituted by an endless belt-shaped rubber crawler main body 28. A cored bar 32 is disposed in the crawler main body 28 at a predetermined interval in the circumferential direction. The metal core 32 is embedded with its wings aligned in the width direction of the crawler body 28, and a pair of guide protrusions 34, 34 are provided on the inner peripheral surface 28 a side of the crawler body 28 at the center in the width direction. Protrusively formed.

クローラ本体部２８の内周面２８ａの芯金３２と芯金３２との間の領域に、前述したスプロケットの歯部１４ａが嵌合し、クローラ本体部２８に回転力を与えるように構成されている。前述した転輪１８は、それらを構成する２枚のフランジ部１８ａがこの一対の案内突起部３４、３４を挟むようにして回転する。前述した遊動輪１６も同様である。また、クローラ本体部２８の内周面２８ａの内、この案内突起部４３、４３のクローラ本体部２８の幅方向両側には、各々１条ずつ転輪１８が当接（回転）して通過する平坦な転輪通過面３０が、クローラ本体部２８の周方向に連続した状態で形成されている。   The sprocket tooth portion 14a is fitted in a region between the cored bar 32 and the cored bar 32 on the inner peripheral surface 28a of the crawler main body 28, and is configured so as to apply a rotational force to the crawler main body 28. Yes. The above-described rolling wheel 18 rotates such that the two flange portions 18a constituting them sandwich the pair of guide projections 34 and 34. The same applies to the idler wheel 16 described above. In addition, one roller wheel 18 abuts (rotates) and passes through each of the guide protrusions 43 and 43 on both sides in the width direction of the crawler main body 28 in the inner peripheral surface 28a of the crawler main body 28. A flat wheel passing surface 30 is formed in a state continuous in the circumferential direction of the crawler main body 28.

ラグ４２ａ、４２ｂは、周方向に間隔をおいてクローラ本体部２８の外周面２８ｂから突出形成されている。これらラグ４２ａ、４２ｂは、何れもクローラ本体部２８の略幅方向に伸長するようにクローラ本体部２８から突設されているが、この内符号４２ａで示すラグは、クローラ本体部２８の幅方向の外側端部がクローラ本体部２８自身の幅方向端部に位置している。符号４２ｂで示すラグは、クローラ本体部２８の幅方向の外側端部がクローラ本体部２８の幅方向端部よりもクローラ本体部２８の幅方向の内側に位置している。そのため、符号４２ａで示すラグを長ラグ、符号４２ｂで示すラグを短ラグと称する。本実施の形態では、クローラ本体部２８の周方向に長ラグ４２ａと短ラグ４２ｂとが交互に突設されている。   The lugs 42a and 42b are formed so as to protrude from the outer peripheral surface 28b of the crawler main body 28 with an interval in the circumferential direction. The lugs 42a and 42b are provided so as to protrude from the crawler main body 28 so as to extend in the substantially width direction of the crawler main body 28. The lug indicated by the reference numeral 42a is the width direction of the crawler main body 28. The outer end of the crawler body 28 is located at the end in the width direction of the crawler main body 28 itself. In the lug indicated by reference numeral 42 b, the outer end portion in the width direction of the crawler main body portion 28 is located on the inner side in the width direction of the crawler main body portion 28 than the end portion in the width direction of the crawler main body portion 28. Therefore, the lug indicated by reference numeral 42a is referred to as a long lug, and the lug indicated by reference numeral 42b is referred to as a short lug. In the present embodiment, long lugs 42 a and short lugs 42 b are alternately projected in the circumferential direction of the crawler main body 28.

また、ラグ４２ａ、４２ｂは、クローラ本体部２８の幅方向の中央部に設けられた離間部３６によりクローラ本体部２８の幅方向両側に分割されている。この離間部３６が存在することにより、ゴムクローラ１０が例えば泥の付着し易い畑や農地等を通過した際に、ゴムクローラ１０の外周面２８ｂに泥等が詰まることを防止する。例えば、水分が多量の農地を走行した場合等は、泥がラグ４２ａ、４２ｂ間にこびり付き大量の泥が詰まることとなる。   The lugs 42 a and 42 b are divided on both sides in the width direction of the crawler main body 28 by a separation portion 36 provided at the center in the width direction of the crawler main body 28. Due to the presence of the separation portion 36, when the rubber crawler 10 passes, for example, a field or farmland where mud easily adheres, mud etc. are prevented from clogging the outer peripheral surface 28b of the rubber crawler 10. For example, when traveling on farmland with a large amount of moisture, mud is stuck between the lugs 42a and 42b and a large amount of mud is clogged.

本実施の形態では、紐状部材３８は、クローラ本体部２８の外周面２８ｂの周方向に連続してラグ４２ａ、４２ｂが存在しないラグの周方向不存在領域、すなわち、クローラ本体部２８の幅方向の中央部に取り付けた。この周方向不存在領域は、背景技術で述べた離間部３６と一致する。紐状部材３８は無端状（リング状）に構成され、紐状部材３８の長さは、取付け状態で両側に存在するラグ４２ａ、４２ｂの突出高さを越えない長さに調整されている。すなわち、紐状部材３８は、クローラ本体部２８には非固定の状態であり、周方向不存在領域３６では全体が非固定の状態にある。これにより紐状部材３８は、地面に接することがないため、損傷を受けにくい。本実施の形態では、紐状部材３８は、例えばナイロン製のロープであり直径２０ｍｍのものを使用した。   In the present embodiment, the string-like member 38 is a region where the lugs 42a and 42b are not present continuously in the circumferential direction of the outer peripheral surface 28b of the crawler main body 28, that is, the width of the crawler main body 28. Attached to the center of the direction. This circumferential absence region coincides with the separation portion 36 described in the background art. The string-like member 38 is formed in an endless shape (ring shape), and the length of the string-like member 38 is adjusted to a length that does not exceed the protruding heights of the lugs 42a and 42b existing on both sides in the attached state. That is, the string-like member 38 is not fixed to the crawler main body 28, and is entirely unfixed in the circumferential absence region 36. As a result, the string-like member 38 does not come into contact with the ground, and is not easily damaged. In the present embodiment, the string-like member 38 is, for example, a nylon rope having a diameter of 20 mm.

更に、紐状部材３８には、クローラ本体部２８の幅方向の中央部において、両側にラグ４２ａ、４２ｂが存在しない領域に、翼部材４０が設けられている。この翼部材４０は、例えば樹脂製の平板状であり、紐状部材３８に一体化して取り付けられている。翼部材４０のクローラ本体部２８の幅方向の全長は１０ｃｍ程度であり、ラグ４２ａ、４２ｂのクローラ本体部２８の外周面２８ｂでの伸長方向と略平行になるように角度付けされている。   Further, the string-like member 38 is provided with a wing member 40 in a region where the lugs 42a and 42b do not exist on both sides in the central portion in the width direction of the crawler main body 28. The wing member 40 is, for example, a resin flat plate, and is integrally attached to the string member 38. The total length of the wing member 40 in the width direction of the crawler main body 28 is about 10 cm, and the lugs 42a and 42b are angled so as to be substantially parallel to the extending direction of the outer peripheral surface 28b of the crawler main body 28.

上記翼部材４０の全長は１０ｃｍ程度としたが、近傍のラグ４２ａ、４２ｂと干渉しなければ適宜設定することができる。また、上記紐状部材３８の直径は２０ｍｍとしたが、ラグ４２ａ、４２ｂの突出高さの５％〜９５％であれば本発明の目的である泥離れ性の向上が達成できる。直径が５％より小さければ泥離れ性の効果が十分に発揮されず、直径が９５％より大きければゴムクローラの走行に支障を、例えばグリップ力の低下を招くこととなる。   The overall length of the wing member 40 is about 10 cm, but can be set as appropriate as long as it does not interfere with the neighboring lugs 42a and 42b. Moreover, although the diameter of the said string-like member 38 was 20 mm, if it is 5%-95% of the protrusion height of lugs 42a and 42b, the improvement of the mud separation property which is the objective of this invention can be achieved. If the diameter is smaller than 5%, the effect of separating mud is not sufficiently exhibited, and if the diameter is larger than 95%, the rubber crawler travels, for example, the grip force is reduced.

上記の構成により、以下の作用効果を発揮する。リング状の紐状部材３８は、クローラ本体部２８の外周面２８ｂ上のラグ４２ａ、４２ｂの存在しない領域、すなわちラグの周方向不存在領域３６に、全部が非固定の状態で取り付けられているので、ゴムクローラ１０の走行中にクローラ本体部２８の外周面２８ｂに対して、離反又は移動可能な状態に置かれている。すなわち、ゴムクローラ１０の走行時においては、紐状部材３８は揺動する状態となる。   With the above configuration, the following operational effects are exhibited. The ring-shaped string-like member 38 is attached in a non-fixed state to a region where the lugs 42a and 42b are not present on the outer peripheral surface 28b of the crawler body 28, that is, a region 36 where there is no lug in the circumferential direction. Therefore, the rubber crawler 10 is placed in a state where it can be separated or moved with respect to the outer peripheral surface 28b of the crawler main body 28 during the traveling of the rubber crawler 10. That is, when the rubber crawler 10 is traveling, the string-like member 38 is in a swinging state.

したがって、ゴムクローラ１０が農地等を走行し、ラグ４２ａ、４２ｂ間に泥が堆積する可能性の有る状況において、走行中に揺動する紐状部材３８の存在する部分においては、泥が付着しにくい状態が得られる。特に、泥が付き始める段階で、紐状部材３８はほぼ揺動可能な状態にあるので、泥付着の初期段階での泥の付着しにくい状況が生じ、ゴムクローラ１０の泥離れ性が向上する。すなわち、特別な固定作業を行うことなく、リング状の紐状部材３８を上記ラグの周方向不存在領域３６に取り付けるだけでゴムクローラ１０の泥離れ性が向上することとなる。   Therefore, in a situation where the rubber crawler 10 travels on farmland or the like and mud may accumulate between the lugs 42a and 42b, mud adheres to the portion where the string-like member 38 that swings during traveling exists. Difficult state is obtained. In particular, since the string-like member 38 is substantially swingable at the stage where mud begins to attach, a situation in which mud is difficult to adhere at the initial stage of mud adhesion occurs, and the mud separation performance of the rubber crawler 10 is improved. . That is, the mud separation property of the rubber crawler 10 is improved by simply attaching the ring-shaped string-like member 38 to the lug circumferential absence region 36 without performing any special fixing operation.

更に、翼部材４０の存在により、紐状部材３８と翼部材４０との交差領域において、より広範囲に泥離れ性を向上させることができる。すなわち、翼部材４０は、紐状部材３８の揺動に応じて共に動くので、より広範に亘り泥が離れることとなる。   Further, due to the presence of the wing member 40, the mud separation property can be improved in a wider range in the intersecting region between the string member 38 and the wing member 40. That is, since the wing member 40 moves together in response to the swinging of the string-like member 38, mud is separated more widely.

（第２の実施の形態）
第２の実施の形態では、第１の実施の形態と同じクローラ本体部２８とラグ４２ａ、４２ｂを有するゴムクローラ１０において、クローラ本体部２８の幅方向に紐状部材３８を配置した例を示す。第１の実施の形態と同じ構成要素には同じ符号を付し、説明は省略する。 (Second Embodiment)
In the second embodiment, in the rubber crawler 10 having the same crawler main body 28 and lugs 42a and 42b as in the first embodiment, an example in which a string-like member 38 is arranged in the width direction of the crawler main body 28 is shown. . The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

図４は、本発明のゴムクローラの第２の実施の形態に係り、ゴムクローラ１０の外周面２８ｂを示す平面図である。図５は、図４に示すゴムクローラ１０のＢ−Ｂ断面図を示す。   FIG. 4 is a plan view showing the outer peripheral surface 28b of the rubber crawler 10 according to the second embodiment of the rubber crawler of the present invention. FIG. 5 is a cross-sectional view taken along the line BB of the rubber crawler 10 shown in FIG.

本実施の形態では、紐状部材３８は、ラグ４２ａ、４２ｂに挟まれてクローラ本体部２８の幅方向に複数列存在するラグの幅方向不存在領域に取り付けている。このラグの幅方向不存在領域３７は、クローラ本体部２８の周方に所定の間隔を置いて多数存在する。   In the present embodiment, the string-like member 38 is attached to the non-existing region of the lug in the width direction of the crawler main body 28 sandwiched between the lugs 42a and 42b. A large number of the lug width direction non-existing regions 37 exist at predetermined intervals around the crawler body 28.

紐状部材３８のクローラ本体部２８への取り付けは、クローラ本体部２８の内周面２８ａの幅方向両端部に固定部４４を設け、この固定部４４に紐状部材３８の端部を固定して行った。固定は、例えば、クローラ本体部２８の内周面２８ａの両端部に形成された肉厚部に、紐状部材３８の端部を、例えば、接着や溶着等で行うことができる。その他、ボルト、ナット等の固定具を使用しても良い。   The string-shaped member 38 is attached to the crawler main body 28 by providing fixing portions 44 at both ends in the width direction of the inner peripheral surface 28a of the crawler main body 28, and fixing the end of the string-shaped member 38 to the fixed portion 44. I went. For example, the end portion of the string-like member 38 can be fixed to the thick portions formed at both end portions of the inner peripheral surface 28a of the crawler main body portion 28 by, for example, bonding or welding. In addition, fixtures such as bolts and nuts may be used.

紐状部材３８は、ラグの幅方向不存在領域３７の全幅長に亘って伸長され、紐状部材３８の長さは、紐状体３８の両側に存在するラグ４２ａ、４２ｂの突出高さを越えない長さに調整されている。紐状体３８の材質及び直径は、第１の実施の形態と同じである。翼部材４０は、クローラ本体部２８の幅方向の中央部にあり、クローラ本体部２８の周方向に伸長する。   The string-like member 38 is extended over the entire width of the lug width direction non-existing region 37, and the length of the string-like member 38 is equal to the protruding height of the lugs 42a, 42b existing on both sides of the string-like body 38. The length is adjusted so as not to exceed. The material and diameter of the string-like body 38 are the same as those in the first embodiment. The wing member 40 is in the center in the width direction of the crawler main body 28 and extends in the circumferential direction of the crawler main body 28.

上記の構成により、以下の作用効果を発揮する。紐状部材３８は、クローラ本体部２８の外周面２８ｂ上のラグ４２ａ、４２ｂの存在しない領域、すなわちラグの幅方向不存在領域３７に、両端部がクローラ本体部２８の内周面２８ａに固定された状態で取り付けられている。このラグの幅方向不存在領域３７は、周方向に所定の間隔を置いて多数存在するので、トータルとして紐状部材３８の長さは長いことになる。   With the above configuration, the following operational effects are exhibited. The string-like member 38 is fixed to the inner peripheral surface 28a of the crawler main body 28 in the region 37 where the lugs 42a and 42b do not exist, that is, the lug width absence region 37 on the outer peripheral surface 28b of the crawler main body 28. It is attached in the state that was done. Since there are a large number of the lug width non-existing regions 37 at predetermined intervals in the circumferential direction, the length of the string-like member 38 is long as a total.

したがって、トータルとして長い紐状部材３８は、ゴムクローラ１０の走行中にクローラ本体部２８の外周面２８ｂに対して、離反又は移動可能な状態に置かれており、ゴムクローラ１０の走行時においては、トータルとして長い紐状部材３８は全てが揺動する状態となる。   Accordingly, the long string-like member 38 as a whole is placed in a state in which the rubber crawler 10 is separated or movable with respect to the outer peripheral surface 28b of the crawler main body 28 during the travel of the rubber crawler 10. In total, the long string-like member 38 is in a state of swinging.

その結果、ゴムクローラ１０が農地等を走行し、ラグ４２ａ、４２ｂ間に泥が堆積する可能性の有る状況において、走行中に揺動する紐状部材３８の存在する部分においては、泥が付着しにくい状態が得られる。特に、泥が付き始める段階で、紐状部材３８はほぼ揺動可能な状態にあるので、泥付着の初期段階での泥の付着しにくい状況が生じ、ゴムクローラ１０の泥離れ性が向上する。トータルとして紐状部材３８の長さは長いので、それだけ泥離れ性が向上する。更に、翼部材４０の存在により、紐状部材３８と翼部材４０との交差領域において、より広範囲に泥離れ性を向上させることができる。   As a result, in a situation where the rubber crawler 10 travels on farmland or the like and mud may accumulate between the lugs 42a and 42b, mud adheres to the portion where the string-like member 38 that swings during traveling exists. It is difficult to do. In particular, since the string-like member 38 is substantially swingable at the stage where mud begins to attach, a situation in which mud is difficult to adhere at the initial stage of mud adhesion occurs, and the mud separation performance of the rubber crawler 10 is improved. . Since the length of the string-like member 38 is long as a whole, the mud separation property is improved accordingly. Further, due to the presence of the wing member 40, the mud separation property can be improved in a wider range in the intersecting region between the string member 38 and the wing member 40.

なお、本発明は、上述の実施の形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲で種々の変更が可能である。例えば、第１の実施の形態及び第２の実施の形態では、紐状部材３８は拠り合わされたナイロンロープで構成したが、その他に、紐状の弾性体、縄、鎖、チェーン等を使用しても良い。また、翼部材４０は、樹脂製のものを使用したが、金属、木等を用いて構成しても良い。また、紐状部材は、厳密に紐の様な形状をしているものだけではなく、例えば、帯状の幅広の形状になっているものも含む。   Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in the first embodiment and the second embodiment, the string-like member 38 is constituted by a supported nylon rope, but in addition, a string-like elastic body, rope, chain, chain, etc. are used. May be. The wing member 40 is made of resin, but may be made of metal, wood or the like. The string-like member includes not only a string-like shape strictly but also a band-like wide shape, for example.

更に、上記の実施の形態では、芯金の有るゴムクローラについて示したが、芯金のないゴムクローラにも適用できることは言うまでもない。   Furthermore, in the above-described embodiment, the rubber crawler having a cored bar has been described, but it goes without saying that the present invention can also be applied to a rubber crawler without a cored bar.

また、クローラ本体部に内周面から外周面に貫通して駆動輪のスプロケットの歯部が嵌合する貫通穴が形成されているゴムクローラに本願発明を適用する場合、この貫通穴を利用して上述の紐状部材を取付けることも可能である。すなわち、貫通穴に紐状部材を通すことで、固定具等の特殊な加工をすることなく、紐状部材を取り付けることができる。   In addition, when the present invention is applied to a rubber crawler in which a crawler body portion is formed with a through hole that penetrates from the inner peripheral surface to the outer peripheral surface and engages the sprocket teeth of the drive wheel, the through hole is used. It is also possible to attach the above-mentioned string-like member. That is, by passing the string-like member through the through hole, the string-like member can be attached without special processing such as a fixture.

また、実施の形態では、泥の付着を防止し泥の剥落を向上させること、すなわち泥離れ性に主眼を置いて説明したが、例えば、雪道を走行中にゴムクローラに雪が付着することを防止し、また付着した雪を剥落させることも可能である。   Further, in the embodiment, the description has been made with an emphasis on improving mud peeling by preventing mud adhesion, that is, for example, that snow adheres to a rubber crawler while traveling on a snowy road. It is possible to prevent and to remove the attached snow.

１０ ゴムクローラ
１２ フレーム（機体）
１４ 駆動輪
１６ 遊動輪
１８ 転輪
２８ クローラ本体部
３０ 転輪通過面
３２ 芯金
３４ 案内突起部
３６ 離間部（ラグの周方向不存在領域）
３７ ラグの幅方向不存在領域
３８ 紐状部材
４０ 翼部材
４２ａ、４２ｂ ラグ
４４ 固定部 10 Rubber track 12 Frame (airframe)
14 Driving wheel 16 Idle wheel 18 Rolling wheel 28 Crawler main body 30 Rolling wheel passage surface 32 Core metal 34 Guide protrusion 36 Separation part (Lug circumferential direction non-existing region)
37 Lug width absence region 38 String member 40 Wing members 42a, 42b Lug
44 fixed part

Claims (5)

無端帯状のクローラ本体部と、該クローラ本体部の外周面に突出形成された複数のラグと、を有するゴムクローラにおいて、
前記クローラ本体部の外周面上の前記ラグの存在しない領域に伸長するように且つ少なくとも一部又は全部が前記外周面に非固定の状態で前記クローラ本体部に取り付けられた紐状部材を備えたことを特徴とするゴムクローラ。 In a rubber crawler having an endless belt-like crawler main body portion and a plurality of lugs protrudingly formed on the outer peripheral surface of the crawler main body portion,
A string-like member attached to the crawler main body so as to extend to an area where the lug does not exist on the outer peripheral surface of the crawler main body and at least a part or all of the crawler main body is not fixed to the outer peripheral surface. Rubber crawler characterized by that. 前記ラグの存在しない領域は、前記ラグに挟まれて前記クローラ本体部の周方向に一又は複数列存在するラグの周方向不存在領域であり、
前記紐状部材は、無端状に構成され、
該紐状部材の前記クローラ本体部への取り付けは、
前記ラグの周方向不存在領域に前記クローラ本体部に対して非固定状態で行われたことを特徴とする請求項１に記載のゴムクローラ。 The region where the lug is not present is a circumferential absence region of the lug that is sandwiched between the lugs and present in one or more rows in the circumferential direction of the crawler main body.
The string-like member is configured to be endless,
The string member is attached to the crawler main body.
2. The rubber crawler according to claim 1, wherein the rubber crawler is performed in a non-fixed state with respect to the crawler main body in a circumferential absence region of the lug. 前記ラグの存在しない領域は、前記ラグに挟まれて前記クローラ本体部の幅方向に一又は複数列存在するラグの幅方向不存在領域であり、
前記紐状部材の前記クローラ本体部への取り付けは、
該紐状部材が、前記ラグの幅方向不存在領域の全幅長に亘って伸長し、両端が前記クローラ本体部に対して固定されることで行われたことを特徴とする請求項１に記載のゴムクローラ。 The region where the lug does not exist is a region in which the lug is not present in the width direction of one or more rows in the width direction of the crawler main body portion sandwiched between the lugs,
The attachment of the string-like member to the crawler main body is as follows.
The cord-like member is formed by extending over the entire width of the region in the absence of the lug in the width direction, and both ends are fixed to the crawler main body. Rubber crawler. 前記紐状部材には、
該紐状部材の伸長方向と略直交する方向に前記ラグと干渉しない位置で伸長する翼部材が設けられたことを特徴とする請求項１〜３の何れか１項に記載のゴムクローラ。 In the string-like member,
The rubber crawler according to any one of claims 1 to 3, wherein a wing member is provided that extends at a position that does not interfere with the lug in a direction substantially orthogonal to the extending direction of the string-like member. 前記紐状体の直径は、
前記ラグの突出高さの５％〜９５％であることを特徴とする請求項１〜４の何れか１項に記載のゴムクローラ。 The string has a diameter of
The rubber crawler according to any one of claims 1 to 4, wherein the height is 5% to 95% of a protruding height of the lug.
JP2018071582A 2018-04-03 2018-04-03 Rubber crawler Pending JP2019182014A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07125658A (en) * 1993-11-04 1995-05-16 Ohtsu Tire & Rubber Co Ltd :The Elastic crawler and travelling deice using the same
JP2008126749A (en) * 2006-11-17 2008-06-05 Bridgestone Corp Rubber crawler
JP2009154686A (en) * 2007-12-26 2009-07-16 Bridgestone Corp Coreless rubber crawler
US20100001580A1 (en) * 2006-11-09 2010-01-07 Breton Remi Traction chain assembly for elastomeric tracks
US20100193263A1 (en) * 2009-01-30 2010-08-05 Gordon Kaiser Traction apparatus to improve winter operation of rubber tracks on endless track vehicles
JP2016037078A (en) * 2014-08-05 2016-03-22 株式会社ブリヂストン Rubber crawler

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07125658A (en) * 1993-11-04 1995-05-16 Ohtsu Tire & Rubber Co Ltd :The Elastic crawler and travelling deice using the same
US20100001580A1 (en) * 2006-11-09 2010-01-07 Breton Remi Traction chain assembly for elastomeric tracks
JP2008126749A (en) * 2006-11-17 2008-06-05 Bridgestone Corp Rubber crawler
JP2009154686A (en) * 2007-12-26 2009-07-16 Bridgestone Corp Coreless rubber crawler
US20100193263A1 (en) * 2009-01-30 2010-08-05 Gordon Kaiser Traction apparatus to improve winter operation of rubber tracks on endless track vehicles
JP2016037078A (en) * 2014-08-05 2016-03-22 株式会社ブリヂストン Rubber crawler

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