JP2001322576A - Rubber crawler - Google Patents
Rubber crawlerInfo
- Publication number
- JP2001322576A JP2001322576A JP2000325019A JP2000325019A JP2001322576A JP 2001322576 A JP2001322576 A JP 2001322576A JP 2000325019 A JP2000325019 A JP 2000325019A JP 2000325019 A JP2000325019 A JP 2000325019A JP 2001322576 A JP2001322576 A JP 2001322576A
- Authority
- JP
- Japan
- Prior art keywords
- lug
- rubber
- elastic body
- lugs
- long
- 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
Links
Landscapes
- Tires In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はゴムクロ−ラの新規
な構造に係り、特に湿田等に用いられるゴムクローラの
ラグの摩耗の低減と推進力及び旋回性の向上を目指した
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel structure of a rubber crawler, and more particularly to a method of reducing abrasion of lugs of rubber crawlers used in wet fields and the like, and improving propulsion and turning performance.
【０００２】[0002]
【従来の技術】従来のゴムクローラにおけるラグ形状は
種々存在するが、湿田や半湿田用に用いられるゴムクロ
ーラにはその幅方向に直線状にのびる長短ラグが交互に
備えられたものが多い。2. Description of the Related Art There are various types of lugs in conventional rubber crawlers, but many rubber crawlers used for wet fields and semi-wet fields are provided with long and short lugs which extend linearly in the width direction thereof.
【０００３】図３８はその一例を示すゴムクローラの外
周面側の平面図であり、ゴムクローラ２１の外周面には
幅方向の全長にわたる長ラグ２２と、中央に形成された
短ラグ２３とが交互に配備された構造となっており、ゴ
ムクローラの中央域Ａにて機体の重量を支え、左右域Ｂ
にて推進力をもたらしている。図でも分かるように、こ
の左右域Ｂには短ラグ２３が存在せず、ゴムクローラの
外周面に泥土が付着した場合でもラグ間（ラグ２２、２
２間）に幅があるため比較的泥土は落ち易く、このため
ゴムクローラは推進力が発揮される。ただし、中央域Ａ
は長ラグ２２と短ラグ２３が存在ししかもこのラグ間
（ラグ２２、２３間）が狭いため、この間に付着した泥
土は落ちにくく推進力の発揮は左程ではない。FIG. 38 is a plan view showing an example of an outer peripheral surface of a rubber crawler. An outer peripheral surface of a rubber crawler 21 has a long lug 22 extending over the entire length in the width direction and a short lug 23 formed at the center. The structure is arranged alternately. The center area A of the rubber crawler supports the weight of the aircraft,
Is providing the driving force. As can be seen from the figure, the short lugs 23 do not exist in the left and right areas B, and even when muddy soil adheres to the outer peripheral surface of the rubber crawler, the gap between the lugs (lugs 22, 2
2), the mud is relatively easy to fall, and the rubber crawler exerts a propulsive force. However, central area A
Since there is a long lug 22 and a short lug 23 and the gap between the lugs (between the lugs 22 and 23) is narrow, the mud adhering during this is hard to fall off and the propulsion is not exerted to the left.
【０００４】このため、中央域Ａに付着した泥土を落と
し易くするために長ラグ２２の中央部を切り欠いた形状
のものが提案され、中央域Ａにおける泥土の落下をうな
がしより高い推進力を得ようとする試みがある。しかし
ながら、このために新たな課題が発生することも事実で
あり、例えば、長ラグの中央を分割したことでラグの剛
性が少なくなり、かつ長ラグの中央部における摩耗が著
しくなるという点である。更に、ゴムクローラの旋回時
等に長ラグの中央域の側面での抵抗が増加したため、特
に半湿田や乾田での旋回性が低下する傾向にある。For this reason, in order to make it easy to drop mud adhering to the central area A, a shape in which the central part of the long lug 22 is cut off has been proposed. There are attempts to get it. However, it is also a fact that a new problem arises due to this, for example, the fact that the center of the long lug is divided reduces the rigidity of the lug and significantly increases the wear at the center of the long lug. . Further, when the rubber crawler is turned, the resistance on the side surface in the central region of the long lug is increased, so that the turning property particularly in semi-wet fields and dry fields tends to decrease.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記したよ
うな従来のゴムクローラの課題を解決することを課題と
し、ラグの剛性を確保しつつ中央部の泥の詰まりを少な
くし、中央部での長ラグの摩耗を低減させ、かつゴムク
ローラの推進性能及び旋回性能を向上したゴムクローラ
を提供しようとするものである。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the conventional rubber track by reducing the clogging of mud at the center while ensuring the rigidity of the lug. An object of the present invention is to provide a rubber crawler in which the wear of a long lug is reduced and the propulsion performance and the turning performance of the rubber crawler are improved.
【０００６】[0006]
【課題を解決するための手段】本発明は以上の課題を解
決するために次の構成としたものである。即ち、発明の
第１は、無端状ゴム弾性体の長手方向に一定ピッチをも
って埋設された芯金と、この芯金の接地側を囲んで前記
無端状ゴム弾性体の長手方向に向かって埋設されたスチ
ールコードと、外周面にラグを形成してなるゴムクロー
ラにおいて、前記ラグはゴム弾性体の幅方向にのびる直
線状の長ラグと、この長ラグ間に短ラグを配置し、前記
長ラグの短ラグに対向する部位のラグ背丈を低くすると
共に、前記長ラグの少なくとも一方端にゴム弾性体の幅
端縁よりも外側に向けて膨出部を形成したことを特徴と
するゴムクローラにかかるものである。The present invention has the following configuration to solve the above-mentioned problems. That is, a first aspect of the present invention is a core metal embedded at a constant pitch in the longitudinal direction of the endless rubber elastic body, and embedded around the ground side of the core metal toward the longitudinal direction of the endless rubber elastic body. A rubber crawler having a steel cord and a lug formed on an outer peripheral surface thereof, wherein the lug is a linear long lug extending in the width direction of the rubber elastic body, and a short lug is arranged between the long lugs. A rubber crawler characterized in that the lug height at the portion facing the short lug is reduced, and at least one end of the long lug is formed with a bulge toward the outside of the width edge of the rubber elastic body. Such is the case.
【０００７】発明の第２は、無端状ゴム弾性体の長手方
向に一定ピッチをもって埋設された芯金と、この芯金の
接地側を囲んで前記無端状ゴム弾性体の長手方向に向か
って埋設されたスチールコードと、外周面にラグを形成
してなるゴムクローラにおいて、前記ラグはゴム弾性体
の幅方向にのびる直線状の長ラグと、この長ラグ間に短
ラグを配置し、前記長ラグの短ラグに対向する部位のラ
グ背丈を低くすると共に、短ラグの少なくとも一方端に
ゴム弾性体の幅方向に伸びる裾野部を形成し、該裾野部
にゴム弾性体の幅端縁よりも外側に向けて膨出部を形成
したことを特徴とするゴムクローラにかかるものであ
る。A second aspect of the present invention is a core bar embedded at a constant pitch in the longitudinal direction of the endless rubber elastic body, and embedded around the ground side of the core bar in the longitudinal direction of the endless rubber elastic body. A rubber crawler having a lug formed on an outer peripheral surface thereof, wherein the lug is a linear long lug extending in the width direction of the rubber elastic body, and a short lug is arranged between the long lugs. Along with lowering the lug height of the portion of the lug facing the short lug, a skirt portion extending in the width direction of the rubber elastic body is formed on at least one end of the short lug, and the hem portion is wider than the width edge of the rubber elastic body. The present invention relates to a rubber crawler having a bulge formed outward.
【０００８】[0008]
【発明の実施の形態】本発明は、ゴムクローラにおける
ラグの構造及び配置を特定することによりラグ間の泥詰
まりをなくし、かつラグの摩耗性を低減し、ゴムクロー
ラの推進性能と旋回性能を高めるようにラグ及びその他
の形状を最適化したもので、更に言えば、長ラグ及び短
ラグの改良と、ゴムクローラの外周面をゴムクローラの
幅端に近づくにつれて順次接地面より高くしたことによ
って特徴付けされる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention eliminates clogging between lugs by specifying the structure and arrangement of lugs in a rubber crawler, reduces the abrasion of lugs, and improves the propulsion performance and turning performance of a rubber crawler. Optimized lugs and other shapes to increase, more specifically, by improving long lugs and short lugs, and by sequentially raising the outer peripheral surface of the rubber crawler from the ground contact surface as approaching the width end of the rubber crawler Be characterized.
【０００９】ゴムクローラのラグの形状、寸法は上記目
的を達成するために好ましい範囲があり、長ラグの中央
域の本来の背丈Ｈと中央域の実際の背丈ｈとの比、ｈ／
Ｈが０．３未満ではラグの剛性は低く、又、この部位の
段差面が旋回に対して壁となり旋回性能は劣り、一方、
ｈ／Ｈが０．７を越えると、ラグ間に泥が詰まる傾向は
大きくなってしまう。一方、短ラグの頂面長さＬと、長
ラグの背丈の低い部位の底面の長さＬ0 の関係にあって
は、０．３≦Ｌ0 ／Ｌ≦１の特定の範囲に限定したこと
により泥詰まりをなくしかつラグとしての剛性を確保で
きる。The shape and size of the lug of the rubber crawler have a preferable range for achieving the above object, and the ratio of the original height H of the central region of the long lug to the actual height h of the central region, h /
If H is less than 0.3, the stiffness of the lug is low, and the step surface of this portion becomes a wall against turning, and the turning performance is inferior.
When h / H exceeds 0.7, the tendency of mud to be clogged between the lags increases. On the other hand, the relationship between the length L of the top surface of the short lug and the length L 0 of the bottom portion of the short lug is limited to a specific range of 0.3 ≦ L 0 / L ≦ 1. This can prevent mud clogging and ensure the rigidity of the lug.
【００１０】そして、第１発明にあっては長ラグの少な
くとも一方端にゴム弾性体の幅端縁よりも外側に向けて
膨出部を形成したことを特徴とするもので、これにより
泥をオールのように掴んで推進性能を向上させたもので
ある。かかる膨出部は長ラグの一方端に或いは両端に備
えてもよく、更には、長ラグの交互の一方端に千鳥状に
備えても、或いはゴムクローラの片側にこれを集中して
備えてもよい。The first invention is characterized in that at least one end of the long lug is formed with a bulging portion outwardly from the width edge of the rubber elastic body, whereby mud is removed. The propulsion performance is improved by grasping like an oar. Such a bulge may be provided at one end or both ends of the long lug, or may be staggered at one end of the long lug, or may be provided concentrated on one side of the rubber crawler. Is also good.
【００１１】一方、短ラグにあっては、通常はゴム弾性
体の中央に配置されるが、ゴム弾性体の左右に偏芯配置
されても、或いは左右に千鳥状に配置されたものであっ
てもよい。即ち、短ラグをゴム弾性体の幅方向の一方側
に偏芯して配置することもでき、かかる短ラグの偏芯に
あっては、全短ラグを偏芯させてもよいが、ゴム弾性体
の左右幅方向に相対的に交互に偏芯したものでもよい。On the other hand, the short lugs are usually arranged at the center of the rubber elastic body, but may be arranged eccentrically on the left and right sides of the rubber elastic body or staggered on the left and right sides. You may. That is, the short lugs can be arranged eccentrically on one side in the width direction of the rubber elastic body. In such eccentricity of the short lugs, all the short lugs may be eccentric, The eccentricity may be relatively alternately eccentric in the width direction of the body.
【００１２】そして、走行時にいわゆるゴムクローラの
耳部が曲がってしまう現象を阻止するため、短ラグの端
部の少なくとも一方側に裾野部を伸ばせば耳部の剛性を
確保され、それだけ泥を掴む機能が増すこととなる。短
ラグの配置が偏芯配置である場合には、裾野部は偏芯側
とは逆側に形成するのが一般的である。更に、隣り合う
長ラグの前後面とにて囲まれたゴム弾性体の外周面を、
ゴム弾性体の幅端に近づくにつれて順次接地面より高く
した構造とするのがよく、これによって特に長ラグの背
丈が高くなり、推進性能の向上に繋がるものである。In order to prevent the so-called rubber crawler ear from being bent during traveling, the stiffness of the ear is ensured by extending the skirt portion to at least one side of the end of the short lug. Function will increase. When the arrangement of the short lugs is an eccentric arrangement, the skirt portion is generally formed on the side opposite to the eccentric side. Furthermore, the outer peripheral surface of the rubber elastic body surrounded by the front and rear surfaces of the adjacent long lugs,
It is preferable to adopt a structure in which the lug is gradually raised from the ground contact surface as approaching the width end of the rubber elastic body, and thereby the height of the long lug is particularly increased, which leads to improvement in propulsion performance.
【００１３】尚、推進性能の向上の面から言えば、短ラ
グの裾野部にあっても長ラグにおける膨出部と同等の膨
出部を形成することによりその性能は向上する。From the viewpoint of improving the propulsion performance, the performance is improved by forming a bulge equivalent to the bulge in the long lug even at the foot of the short lug.
【００１４】限定的には、長短ラグに対応して平面投影
方向にて重複して芯金が埋設され、更に具体的には、短
ラグの頂面が芯金の平面投影内に納まる構造とすれば、
機体の重量や外力を芯金にて確実に受けることとなり、
振動等の発生も収まることとなる。耳おれ現象の阻止に
対しては、更にゴム弾性体の幅端縁にその長手方向にリ
ブを形成してもよい。More specifically, a core metal is buried in the plane projection direction so as to correspond to the long and short lugs, and more specifically, a structure in which the top surface of the short lug fits in the plane projection of the core metal. if,
The weight and external force of the aircraft will be reliably received by the core bar,
Occurrence of vibration and the like can be stopped. In order to prevent the ear-drop phenomenon, a rib may be further formed on the width end of the rubber elastic body in the longitudinal direction.
【００１５】第２発明にあっては、短ラグのみならず、
長ラグの少なくとも一方端にゴム弾性体の幅端縁よりも
外側に向けて膨出部を形成するのが推進力の向上のため
には望ましく、前記裾野部幅端縁の膨出部が前記長ラグ
の膨出部よりもクローラ内側に位置するものが好まし
い。In the second invention, not only short lugs but also
It is desirable for at least one end of the long lug to form a bulging portion outwardly from the width edge of the rubber elastic body in order to improve the propulsion force, and the bulging portion of the skirt portion width edge is the bulging portion. The lug is preferably located on the inner side of the crawler rather than the bulge.
【００１６】[0016]
【実施例】以下、本発明のゴムクローラを図面をもって
更に詳細に説明する。図１は第１発明のゴムクローラ
（第１例）の外周平面図、図２は内周平面図、図３は側
面図である。又、図４はＡーＡ線、図５はＢーＢ線、図
６はＣーＣ線での夫々断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The rubber track of the present invention will be described below in more detail with reference to the drawings. FIG. 1 is an outer peripheral plan view of a rubber track (first example) of the first invention, FIG. 2 is an inner peripheral plan view, and FIG. 3 is a side view. 4 is a sectional view taken along line AA, FIG. 5 is a sectional view taken along line BB, and FIG. 6 is a sectional view taken along line CC.
【００１７】図においてゴムクローラを形成する無端状
ゴム弾性体１中に一定ピッチをもって芯金２が埋設され
ており、この芯金２を外囲いしてスチールコード３がこ
れ又ゴム中に埋設されている。そして、この芯金１から
はゴム弾性体１の内周面に一対の突起４、４が突出し、
これが転輪やスプロケットとの係合に供されるもので、
この突起４、４に挟まれた芯金２の中央部はスプロケッ
ト係合部５を構成している。そしてこのスプロケット係
合部５、５間にはスプロケット係合孔６が形成されてい
る。In the figure, a metal core 2 is embedded at a constant pitch in an endless rubber elastic body 1 forming a rubber crawler. A steel cord 3 is also embedded in the rubber surrounding the metal core 2. ing. Then, a pair of protrusions 4, 4 project from the core 1 on the inner peripheral surface of the rubber elastic body 1,
This is used for engagement with wheels and sprockets,
The central portion of the metal core 2 sandwiched between the protrusions 4, 4 constitutes a sprocket engaging portion 5. A sprocket engagement hole 6 is formed between the sprocket engagement portions 5,5.
【００１８】そして、この芯金２に対応するゴム弾性体
１の外周面にはゴム弾性体１の幅方向に伸びる長ラグ７
及び中央に短ラグ８が交互に配置されている。この長ラ
グ７はこの例ではゴム弾性体１の幅端縁１0 に至る長さ
とされ、短ラグ８の頂面の両端は芯金１の平面投影域内
に収まっている。A long lug 7 extending in the width direction of the rubber elastic body 1 is provided on the outer peripheral surface of the rubber elastic body 1 corresponding to the cored bar 2.
And short lugs 8 are alternately arranged at the center. This length lugs 7 in this example is a length extending in the width edge 1 0 of the rubber elastic body 1, both ends of the top surface of the short lug 8 is within a planar projection region of the core 1.
【００１９】このゴムクローラの長ラグ７の中央域の本
来の背丈Ｈ（短ラグ８の中央部の背丈と同一）は略４０
ｍｍであるところ、長ラグの中央部の実際の背丈ｈを略
１８ｍｍとしたものである。このため左右の長ラグ７
1 、７2 はこの中央部の背丈の低いラグ７0 のよって連
結されているため剛性の低下はそれ程でもなく、機体の
振動の発生も比較的少なくてすむこととなり、更に特徴
的には、短ラグ８と長ラグ中央部７0 間に詰まる泥が落
ち易くなったものである。The original height H (same as the height at the center of the short lug 8) in the center region of the long lug 7 of the rubber crawler is approximately 40.
mm, the actual height h at the center of the long lug is approximately 18 mm. Therefore, the left and right long lugs 7
1, 7 2 is neither so much reduction in rigidity because it is attached by a lug 7 0 low stature of the central portion, generation of vibration of the aircraft also becomes possible to requiring relatively small, more characteristically, in which mud clogging between the short lugs 8 long lag central portion 7 0 becomes liable to fall.
【００２０】更に具体的には、この中央部７0 は左右の
長ラグ７1 、７2 との間で傾斜面７ 3 、７3 をもって構
成したため、ゴムクローラの旋回時もこの部位が旋回運
動に対して大きな壁にならず、旋回抵抗も比較的少なく
てすみ、このためにラグの摩耗も低減されるという特徴
も併せもつものである。長ラグ７の中央部７0 を構成す
る傾斜面７3 、７3 はゴムクローラの旋回時の抵抗壁を
構成することとなるが、この抵抗壁は緩やかな角度をも
って構成されたために旋回抵抗も小さく、かつこのため
のラグ部の摩耗も低減させる結果となったものである。
この傾斜面７3の傾斜角度θは小さければよいことは勿
論であるが、実質的には３０〜５０度程度をもって長ラ
グの中央部７0 が構成されることとなる。More specifically, the central portion 70 Is left and right
Long lug 71 , 7Two Inclined surface 7 between Three , 7Three With
As a result, this part also turns
Does not become a large wall against movement and has relatively low turning resistance
Features that reduce lug wear
It also has Central part 7 of long lug 70 Make up
Inclined surface 7Three , 7Three The resistance wall when turning the rubber crawler
This resistance wall has a gentle angle.
, The turning resistance is small, and
This also results in reducing the wear of the lug.
This inclined surface 7ThreeOf course, the smaller the inclination angle θ of
However, it is practically long at about 30 to 50 degrees.
Central part 70 Is configured.
【００２１】又、この長ラグ７の中央部７0 の底部長さ
Ｌ0 は泥詰まりを阻止するためには長い程好ましいが、
ラグの剛性や機体の上下動の点を考慮すれば短ラグ８の
頂面長さＬに対して０．３〜１程度、好ましくは０．４
〜０．７とするのがよい。[0021] Also, the bottom length L 0 of the central portion 7 0 of the long lug 7 is preferably as long to prevent mud clogging,
Considering the lug rigidity and the vertical movement of the fuselage, the top length L of the short lug 8 is about 0.3 to 1, preferably about 0.4.
It is better to be 0.7.
【００２２】さて、この例では長ラグ７にあって図示す
るようにその両端にゴム弾性体１の幅端縁１0 よりも外
側に向けて膨出部７ａ、７ｂを形成したものである。か
かる膨出部７ａ、７ｂは泥土を掻き、これを確実に掴む
ことによって推進性能が大きく向上するものである。こ
の例では長ラグ７の両端に膨出部７ａ、７ｂを形成した
が、一方側のみ（７ａ又は７ｂのみ）、或いは膨出部を
左右交互に形成したものであってもよい。又、短ラグ８
にあっては、この例ではゴムクローラの中央部に同一の
短ラグ８が形成されているが、大きさの異なるものであ
っても、或いは左右いずれの方向に偏芯して形成されて
いるものでもよい。[0022] Now, in this example is obtained by forming the bulge portions 7a, 7b toward the outside than the width edge 1 0 of the rubber elastic body 1 at both ends thereof as shown In the long lug 7. The bulging portions 7a and 7b scrape mud and surely grasp the mud, thereby greatly improving propulsion performance. In this example, the bulges 7a and 7b are formed at both ends of the long lug 7. However, bulges may be formed only on one side (only 7a or 7b) or the bulges may be formed alternately on the left and right. In addition, short lug 8
In this example, the same short lug 8 is formed in the center of the rubber crawler in this example. However, even if the lugs are different in size, they are formed to be eccentric in either direction. It may be something.
【００２３】図７は第２例を示す外周平面図であり、図
８はＤーＤ線での断面図である。尚、内周平面図及び側
面図等は前例とほぼ同一であるため省略する。この例で
は短ラグ８の左右端にゴム弾性体１の幅端縁１0 に達す
る裾野部８0 を備えたものである。この裾野部８0 が形
成されたことによりゴム弾性体１の剛性が確保され、推
進力をより向上させたものである。かかる裾野部８0 は
この例では短ラグ８の左右に形成した例を示したが、必
要な側にのみ、或いは千鳥状に左右に形成してもよいこ
とは勿論であり、図９は第３例で、裾野部８0 を右側に
のみ形成した外周平面図であり、図１０は第４例で、裾
野部８0 を左右に千鳥状に形成した例である。尚、長ラ
グ７における膨出部７ａ、７ｂは左右に形成した例であ
るが、一方側或いは左右に千鳥状に形成することができ
ることは言うまでもない。FIG. 7 is a plan view of the outer periphery showing a second example, and FIG. 8 is a sectional view taken along line DD. Note that the inner peripheral plan view and the side view are substantially the same as those in the previous example, and thus description thereof is omitted. In this example those having a skirt portion 8 0 reaching the width edge 1 0 of the rubber elastic body 1 on the left and right ends of the short lug 8. The skirt portion 8 0 the rigidity of the rubber elastic body 1 is secured by being formed, in which a more improved propulsion. While such skirt portions 8 0 In this example, an example of forming the left and right short lugs 8, only on the side required, or it may be formed on the left and right in a zigzag form is of course, Figure 9 is a in three cases, a periphery plan view to form a skirt portion 8 0 only on the right side, FIG. 10 in the fourth embodiment, an example of forming a zigzag skirt portion 8 0 on the left and right. Although the bulging portions 7a and 7b of the long lug 7 are formed on the left and right, it is needless to say that the bulging portions 7a and 7b can be formed on one side or on the left and right in a staggered manner.
【００２４】図１１は短ラグ８を右側に偏芯させた第５
例であり、図１２はこの偏芯を左右に千鳥状に形成した
第６例である。この例にあっては、長ラグ７における膨
出部７ａ、７ｂは左右に形成したものであるが、一方側
或いは左右に千鳥状に形成することができることは勿論
である。FIG. 11 shows a fifth embodiment in which the short lug 8 is eccentric to the right.
FIG. 12 shows a sixth example in which the eccentricity is formed in a staggered pattern on the left and right. In this example, the bulging portions 7a and 7b of the long lug 7 are formed on the left and right, but it is a matter of course that they can be formed on one side or on the left and right in a staggered manner.
【００２５】図１３は長ラグ７における右側端部を膨出
部７ｂとした第７例であり、他は図１と同様である。
又、図１４は短ラグ８の両端に図７に示した裾野部８0
を形成した第８例である。FIG. 13 shows a seventh example in which the right end of the long lug 7 has a bulging portion 7b, and the other parts are the same as those in FIG.
Further, FIG. 14 foot part 8 0 shown in FIG. 7 at both ends of the short lug 8
This is an eighth example in which is formed.
【００２６】図１５は長ラグ７における膨出部を左右に
千鳥状（７ａ、７ｂ）にした第９例であり他は図１と同
様である。又、図１６は図１５に示した膨出部を左右に
千鳥状（７ａ、７ｂ）とし、短ラグ８の両端に図７に示
した裾野部８0 を形成した第１０例である。FIG. 15 shows a ninth example in which the protruding portion of the long lug 7 is formed in a zigzag shape (7a, 7b) on the left and right, and the rest is the same as FIG. Further, FIG. 16 is a staggered (7a, 7b) the protruding portion shown in the right and left in FIG. 15, a tenth example of the formation of the skirt portion 8 0 shown in FIG. 7 at both ends of the short lug 8.
【００２７】図１７は長ラグ７における右側端部を膨出
部７ｂとし、短ラグ８を左側に偏芯した第１１例であ
る。尚、図示はしないが短ラグ８を右側に偏芯させても
よいことは言うまでもなく、図１８は図１７にあって短
ラグ８を左右に千鳥状に偏芯させた第１２例である。FIG. 17 shows an eleventh example in which the right end of the long lug 7 is a bulging portion 7b and the short lug 8 is eccentric to the left. Although not shown, it is needless to say that the short lug 8 may be eccentric to the right side. FIG. 18 shows a twelfth example in which the short lug 8 is eccentric to the left and right in a staggered manner in FIG.
【００２８】図１９は長ラグ７における膨出部を左右に
千鳥状（７ａ、７ｂ）に形成し、短ラグ８は右側に偏芯
させた第１３例であり、図２０は図１９における短ラグ
８を左右に千鳥状に偏芯配置した第１４例である。FIG. 19 shows a thirteenth example in which the protruding portion of the long lug 7 is formed in a staggered shape (7a, 7b) on the right and left, and the short lug 8 is eccentric to the right. FIG. This is a fourteenth example in which lugs 8 are eccentrically arranged in a staggered manner on the left and right.
【００２９】図２１は長ラグ７における右側端部を膨出
部７ｂとし、短ラグ８の右側端に裾野部８0 を形成した
第１５例である。勿論、裾野部８0 は短ラグ８の左側に
形成することもでき、図２２はこの第１６例を示したも
のである。又、かかる構造の短ラグ８を図２３（第１７
例）に示すように左右に千鳥状に形成することもがきる
ことは言うまでもない。FIG. 21 is a 15th example of the formation of the skirt portion 8 0 on the right end of the bulging portion 7b, the short lugs 8 on the right end portion in the long lug 7. Of course, skirt portion 8 0 can also be formed on the left side of the short lug 8, FIG. 22 shows a sixteenth embodiment. In addition, the short lug 8 having such a structure is connected to the short lug 8 shown in FIG.
Needless to say, it can also be formed in a staggered pattern on the left and right as shown in Example).
【００３０】図２４は長ラグ７における膨出部を左右千
鳥状（７ａ、７ｂ）とし、短ラグ８の右側端に裾野部８
0 を形成した第１８例の図であり、図２５（第１９例）
にて図示するように短ラグ８を左右千鳥状に配置するこ
とも可能である。FIG. 24 shows that the protruding portion of the long lug 7 is staggered right and left (7a, 7b).
FIG. 25 is a diagram of an eighteenth example in which 0 is formed, and FIG.
It is also possible to arrange the short lugs 8 in a staggered manner on the left and right as shown in FIG.
【００３１】図２６は第２発明におけるゴムクローラ
（第２０例）の外周平面図である。図にあって、第１発
明と特に異なる点について言えば、長ラグ７の先端には
膨出部を形成せず、短ラグ８の右側端に裾野部８0 を形
成し、更にその先端をゴム弾性体１の幅端縁１0 より突
出する膨出部８ｂを形成したものである。勿論、長ラグ
７にも膨出部を形成することもできることは言うまでも
なく、図２７は第２１例として長ラグ７の右側に膨出部
７ｂを形成したものである。そして、この例では、膨出
部７ｂの方が膨出部８ｂよりも更に突出した形をなして
いるものである。勿論、夫々の膨出部の突出の程度は任
意に選択可能であり、図２８（第２２例）は膨出部７
ｂ、８ｂの突出の程度が略同一である形状を示してい
る。又、図２９（第２３例）は、図２８における短ラグ
８の裾野部８0 及び膨出部８ａを左側に形成した例であ
る。FIG. 26 is a plan view of the outer periphery of a rubber track (twentieth example) according to the second invention. In the Figure, speaking in particular different from the first invention, without forming the bulging portion on the distal end of the long lug 7, the skirt portion 8 0 formed at the right end of the short lug 8, further its tip it is obtained by forming a bulging portion 8b projecting from the width end edge 1 0 of the rubber elastic body 1. Needless to say, a protruding portion can also be formed on the long lug 7, and FIG. 27 shows a twenty-first example in which a protruding portion 7b is formed on the right side of the long lug 7. In this example, the bulging portion 7b has a shape further protruding than the bulging portion 8b. Of course, the degree of protrusion of each bulging portion can be arbitrarily selected, and FIG.
b, 8b show shapes in which the degree of protrusion is substantially the same. Further, FIG. 29 (23 cases), an example in which the skirt portion 8 0 and a protuberance 8a of the short lug 8 is formed on the left side in FIG. 28.
【００３２】図３０は第２４例を示す図であり、図２７
において長ラグ７の両端に膨出部（７ａ、７ｂ）を形成
した例である。図３１は第２５例であり、図３０におい
て、短ラグ８の左側に裾野部８0 を形成して剛性を高め
たものである。図３２は第２６例であり、短ラグ８には
右側に膨出部８ｂが形成され、長ラグ７における膨出部
７ａ、７ｂよりも内側に位置（突出量の少ない）した例
である。図３３は図３１における短ラグ８にあって、左
側の先端即ち膨出部８ｂを形成しない側には裾野部をも
省略した第２７例である。図３４は図３３における短ラ
グ８の膨出部を左右に千鳥状に配置（８ａ、８ｂ）した
第２８例であり、図３５は千鳥状に配置された短ラグ８
の膨出部８ａ、８ｂを長ラグ７の膨出部７ａ、７ｂより
もその先端を内側（突出量を小さく）にした第２９例で
ある。FIG. 30 shows a twenty-fourth example.
Is an example in which bulging portions (7a, 7b) are formed at both ends of the long lug 7. Figure 31 is a 25th example, in FIG. 30, but with increased stiffness to the left of the short lug 8 to form a skirt portion 8 0. FIG. 32 shows a twenty-sixth example, in which a short lug 8 has a bulged portion 8b formed on the right side and is located inside the bulged portions 7a and 7b of the long lug 7 (with a small amount of protrusion). FIG. 33 shows a 27th example of the short lug 8 in FIG. 31 in which the foot on the left end, that is, the side where the bulging portion 8b is not formed, is also omitted. FIG. 34 shows a twenty-eighth example in which the protruding portions of the short lugs 8 in FIG. 33 are arranged in a staggered manner on the left and right (8a, 8b), and FIG.
This is a 29th example in which the swelling portions 8a and 8b of the long lug 7 are provided with the tip inside (the protrusion amount is smaller) than the swelling portions 7a and 7b.
【００３３】図３６は長ラグ７の両端に膨出部７ａ、７
ｂを、短ラグ８の両端に裾野部８0を介して膨出部８
ａ、８ｂを夫々形成した第３０例であり、その突出量は
ほぼ同じとしたものである。又、図３７は図３６の短ラ
グ８における膨出部８ａ、８ｂの突出量を長ラグ７の膨
出部７ａ、７ｂよりも少なくした第３１例である。FIG. 36 shows bulging portions 7a, 7a at both ends of the long lug 7.
The b, via a skirt portion 8 0 at both ends of the short lug 8 protruding portion 8
This is a thirtieth example in which a and 8b are formed, respectively, and their protrusion amounts are substantially the same. FIG. 37 shows a thirty-first example in which the protruding portions 8a and 8b of the short lug 8 in FIG. 36 have smaller protrusions than the protruding portions 7a and 7b of the long lug 7.
【００３４】[0034]
【発明の効果】本発明のゴムラグ形状は前記したように
長ラグ７の左右のラグ７1 、７2 間には泥詰まりはな
く、又膨出部７ａ、７ｂ、更には膨出部８ａ、８ｂの存
在により大きな推進力が発揮できる。そして長ラグ７の
中央部７0 の背丈が低いため、短ラグ８との間での泥詰
まりも少なくかつ旋回性も改善されたものであり、泥田
地でのゴムクローラに最適となったものである。Gomuragu shape of the present invention exhibits not mud clogging between the lugs 7 1, 7 2 left and right long lugs 7 as mentioned above, also bulging portion 7a, 7b, even bulging portion 8a, Great propulsion can be exerted by the presence of 8b. And due to the low stature of the central portion 7 0 long lug 7, also mud clogging even less and turning of between short lug 8 has been improved, and was the best for a rubber crawler in Dorota land It is.
【図１】図１は本発明の第１例のゴムクローラの外周平
面図である。FIG. 1 is an outer peripheral plan view of a rubber track according to a first embodiment of the present invention.
【図２】図２は図１のゴムクローラの内周平面図であ
る。FIG. 2 is an inner peripheral plan view of the rubber track of FIG. 1;
【図３】図３は図１のゴムクローラの側面図である。FIG. 3 is a side view of the rubber track of FIG. 1;
【図４】図４はＡーＡ線での断面図である。FIG. 4 is a cross-sectional view taken along line AA.
【図５】図５はＢーＢ線での断面図である。FIG. 5 is a sectional view taken along line BB.
【図６】図６はＣーＣ線での断面図である。FIG. 6 is a sectional view taken along line CC.
【図７】図７は本発明の第２例のゴムクローラの外周平
面図である。FIG. 7 is an outer peripheral plan view of a rubber track according to a second embodiment of the present invention.
【図８】図８はＤ−Ｄ線での断面図である。FIG. 8 is a sectional view taken along line DD.
【図９】図９は本発明の第３例のゴムクローラの外周平
面図である。FIG. 9 is an outer peripheral plan view of a rubber track according to a third embodiment of the present invention.
【図１０】図１０は本発明の第４例のゴムクローラの外
周平面図である。FIG. 10 is an outer peripheral plan view of a rubber track according to a fourth embodiment of the present invention.
【図１１】図１１は本発明の第５例のゴムクローラの外
周平面図である。FIG. 11 is an outer peripheral plan view of a rubber track according to a fifth embodiment of the present invention.
【図１２】図１２は本発明の第６例のゴムクローラの外
周平面図である。FIG. 12 is an outer peripheral plan view of a rubber track according to a sixth embodiment of the present invention.
【図１３】図１３は本発明の第７例のゴムクローラの外
周平面図である。FIG. 13 is a plan view showing the outer periphery of a rubber track according to a seventh embodiment of the present invention.
【図１４】図１４は本発明の第８例のゴムクローラの外
周平面図である。FIG. 14 is an outer peripheral plan view of a rubber track according to an eighth embodiment of the present invention.
【図１５】図１５は本発明の第９例のゴムクローラの外
周平面図である。FIG. 15 is a plan view of the outer periphery of a rubber track according to a ninth embodiment of the present invention.
【図１６】図１６は本発明の第１０例のゴムクローラの
外周平面図である。FIG. 16 is a plan view showing the outer periphery of a rubber track according to a tenth embodiment of the present invention.
【図１７】図１７は本発明の第１１例のゴムクローラの
外周平面図である。FIG. 17 is an outer peripheral plan view of a rubber track according to an eleventh example of the present invention.
【図１８】図１８は本発明の第１２例のゴムクローラの
外周平面図である。FIG. 18 is a plan view of the outer periphery of a rubber track according to a twelfth embodiment of the present invention.
【図１９】図１９は本発明の第１３例のゴムクローラの
外周平面図である。FIG. 19 is an outer peripheral plan view of a rubber track according to a thirteenth example of the present invention.
【図２０】図２０は本発明の第１４例のゴムクローラの
外周平面図である。FIG. 20 is an outer peripheral plan view of a rubber track according to a fourteenth example of the present invention.
【図２１】図２１は本発明の第１５例のゴムクローラの
外周平面図である。FIG. 21 is an outer peripheral plan view of a rubber track according to a fifteenth example of the present invention.
【図２２】図２２は本発明の第１６例のゴムクローラの
外周平面図である。FIG. 22 is an outer peripheral plan view of a rubber track according to a sixteenth example of the present invention.
【図２３】図２３は本発明の第１７例のゴムクローラの
外周平面図である。FIG. 23 is a plan view showing the outer periphery of a rubber track according to a seventeenth embodiment of the present invention.
【図２４】図２４は本発明の第１８例のゴムクローラの
外周平面図である。FIG. 24 is an outer peripheral plan view of a rubber track according to an eighteenth example of the present invention.
【図２５】図２５は本発明の第１９例のゴムクローラの
外周平面図である。FIG. 25 is a plan view showing the outer periphery of a rubber track according to a nineteenth embodiment of the present invention.
【図２６】図２６は本発明の第２０例のゴムクローラの
外周平面図である。FIG. 26 is a plan view of the outer periphery of a rubber track according to a twentieth embodiment of the present invention.
【図２７】図２７は本発明の第２１例のゴムクローラの
外周平面図である。FIG. 27 is an outer peripheral plan view of a rubber track according to a twenty-first example of the present invention.
【図２８】図２８は本発明の第２２例のゴムクローラの
外周平面図である。FIG. 28 is an outer peripheral plan view of a rubber track according to a twenty-second example of the present invention.
【図２９】図２９は本発明の第２３例のゴムクローラの
外周平面図である。FIG. 29 is a plan view of the outer periphery of a rubber track of a twenty-third example of the present invention.
【図３０】図３０は本発明の第２４例のゴムクローラの
外周平面図である。FIG. 30 is an outer plan view of a rubber track according to a twenty-fourth example of the present invention.
【図３１】図３１は本発明の第２５例のゴムクローラの
外周平面図である。FIG. 31 is a plan view of the outer periphery of a rubber track according to a twenty-fifth embodiment of the present invention.
【図３２】図３２は本発明の第２６例のゴムクローラの
外周平面図である。FIG. 32 is an outer plan view of a rubber track according to a twenty-sixth embodiment of the present invention.
【図３３】図３３は本発明の第２７例のゴムクローラの
外周平面図である。FIG. 33 is an outer peripheral plan view of a rubber track according to a twenty-seventh example of the present invention.
【図３４】図３４は本発明の第２８例のゴムクローラの
外周平面図である。FIG. 34 is a plan view of the outer periphery of a rubber track according to a twenty-eighth embodiment of the present invention.
【図３５】図３５は本発明の第２９例のゴムクローラの
外周平面図である。FIG. 35 is a plan view showing the outer periphery of a rubber track according to a twenty-ninth embodiment of the present invention.
【図３６】図３６は本発明の第３０例のゴムクローラの
外周平面図である。FIG. 36 is an outer peripheral plan view of a rubber track according to a thirtieth embodiment of the present invention.
【図３７】図３７は本発明の第３１例のゴムクローラの
外周平面図である。FIG. 37 is a plan view of the outer periphery of a rubber track according to a thirty-first embodiment of the present invention.
【図３８】図３８は従来のゴムクローラの外周面側の平
面図である。FIG. 38 is a plan view of an outer peripheral surface side of a conventional rubber track.
１‥‥無端状ゴム弾性体、 １0 ‥‥ゴム弾性体の幅端縁、 ２‥‥芯金、 ３‥‥スチールコード、 ４‥‥突起、 ５‥‥スプロケット係合部、 ６‥‥スプロケット係合孔、 ７‥‥長ラグ、 ７0 ‥‥長ラグの中央部の背丈の低いラグ、 ７1 、７2 ‥‥左右の長ラグ、 ７3 ‥‥左右の長ラグ７1 、７2 と中央部７0 とを連続
する傾斜面、 ７ａ、７ｂ‥‥長ラグの膨出部、 ８‥‥短ラグ、 ８0 ‥‥短ラグにおける裾野部、 ８ａ、８ｂ‥‥短ラグの膨出部、 Ｈ‥‥長ラグの中央域の本来の背丈、（短ラグの中央部
の背丈）、 ｈ‥‥長ラグの中央部の実際の背丈、 θ‥‥傾斜面の傾斜角度、 Ｌ0 ‥‥長ラグの中央部の底部長さ、 Ｌ‥‥短ラグの頂面長さ。1 ‥‥ endless rubber elastic body, 1 0 ‥‥ width edges of the rubber elastic body, 2 ‥‥ cored bar, 3 ‥‥ steel cord, 4 ‥‥ projections, 5 ‥‥ sprocket engagement portion, 6 ‥‥ sprocket engaging holes, 7 ‥‥ length lug, 7 0 ‥‥ length central tall lower lug of the lug, 7 1, 7 2 ‥‥ left and right long lugs, 7 3 ‥‥ left and right long lug 7 1, 7 2 an inclined surface continuous with the central portion 7 0, 7a, the bulging portion of 7b ‥‥ length lugs, 8 ‥‥ short lag, 8 0 ‥‥ skirt portion in the short lug, 8a, 8b ‥‥ bulging of the short lug Part, H ‥‥ the original height of the central area of the long lug, (the height of the central part of the short lug), h ‥‥ the actual height of the central part of the long lug, θ ‥‥ the inclination angle of the inclined surface, L 0 ‥底 Length at the bottom of the center of the long lug, L ‥‥ Top length of the short lug.
Claims (15)
チをもって埋設された芯金と、この芯金の接地側を囲ん
で前記無端状ゴム弾性体の長手方向に向かって埋設され
たスチールコードと、外周面にラグを形成してなるゴム
クローラにおいて、前記ラグはゴム弾性体の幅方向にの
びる直線状の長ラグと、この長ラグ間に短ラグを配置
し、前記長ラグの短ラグに対向する部位のラグ背丈を低
くすると共に、前記長ラグの少なくとも一方端にゴム弾
性体の幅端縁よりも外側に向けて膨出部を形成したこと
を特徴とするゴムクローラ。1. A core bar embedded at a constant pitch in the longitudinal direction of an endless rubber elastic body, and a steel cord embedded around the ground side of the core bar toward the longitudinal direction of the endless rubber elastic body. And a rubber crawler having a lug formed on an outer peripheral surface thereof, wherein the lug is a linear long lug extending in the width direction of the rubber elastic body, and a short lug is arranged between the long lugs. A rubber crawler having a lower lug height at a portion opposed to the rubber lug, and a bulge formed at least at one end of the long lug toward an outside of a width end edge of the rubber elastic body.
チをもって埋設された芯金と、この芯金の接地側を囲ん
で前記無端状ゴム弾性体の長手方向に向かって埋設され
たスチールコードと、外周面にラグを形成してなるゴム
クローラにおいて、前記ラグはゴム弾性体の幅方向にの
びる直線状の長ラグと、この長ラグ間に短ラグを配置
し、前記長ラグの短ラグに対向する部位のラグ背丈を低
くすると共に、短ラグの少なくとも一方端にゴム弾性体
の幅方向に伸びる裾野部を形成し、該裾野部にゴム弾性
体の幅端縁よりも外側に向けて膨出部を形成したことを
特徴とするゴムクローラ。2. A core bar embedded at a constant pitch in the longitudinal direction of the endless rubber elastic body, and a steel cord embedded around the ground side of the core bar toward the longitudinal direction of the endless rubber elastic body. And a rubber crawler having a lug formed on an outer peripheral surface thereof, wherein the lug is a linear long lug extending in the width direction of the rubber elastic body, and a short lug is arranged between the long lugs. In addition to lowering the lug height at the portion facing the rubber lug, a skirt portion extending in the width direction of the rubber elastic body is formed at at least one end of the short lug, and the skirt portion is directed outward from the width edge of the rubber elastic body. A rubber crawler having a bulged portion.
１に記載のゴムクローラ。3. The rubber track according to claim 1, wherein bulges are formed at both ends of the long lug.
の幅方向にのびる裾野部を形成した請求項１に記載のゴ
ムクローラ。4. The rubber crawler according to claim 1, wherein a skirt portion extending in a width direction of the rubber elastic body is formed on at least one end of the short lug.
に向けて膨出部を形成した請求項４に記載のゴムクロー
ラ。5. The rubber crawler according to claim 4, wherein a bulging portion is formed at a skirt portion outwardly from a width edge of the rubber elastic body.
２に記載のゴムクローラ。6. The rubber track according to claim 2, wherein bulges are formed at both ends of the short lug.
性体の幅端縁よりも外側に向けて膨出部を形成し、前記
裾野部幅端縁の膨出部が前記長ラグの膨出部よりもクロ
ーラ内側に位置する請求項２に記載のゴムクローラ。7. A bulging portion is formed on at least one end of the long lug outwardly from a width edge of the rubber elastic body, and a bulging portion at a width edge of the foot portion has a bulging portion. 3. The rubber crawler according to claim 2, wherein the crawler is located inside the crawler than the portion.
（ｈ／Ｈ）が、０．３〜０．７である請求項１又は２に
記載のゴムクローラ。8. The rubber track according to claim 1, wherein the ratio (h / H) of the height H of the long lug to the height h of the central region is 0.3 to 0.7.
底面の長さＬ0 との比（Ｌ0 ／Ｌ）が、０．３〜１であ
る請求項１又は２に記載のゴムクローラ。9. The method according to claim 1, wherein a ratio (L 0 / L) of a length L 0 of the top surface of the short lug to a length L 0 of the bottom surface of the central region of the long lug is 0.3 to 1. The described rubber track.
された請求項１又は２に記載のゴムクローラ。10. The rubber crawler according to claim 1, wherein the short lugs are eccentrically arranged on the left and right sides of the rubber elastic body.
配置された請求項１又は２に記載のゴムクローラ。11. The rubber crawler according to claim 1, wherein the short lugs are arranged in a zigzag pattern on the left and right sides of the rubber elastic body.
影方向にて重複する請求項１又は２に記載のゴムクロー
ラ。12. The rubber track according to claim 1, wherein the long lug, the short lug, and the core metal overlap in a plane projection direction.
まる請求項１又は２に記載のゴムクローラ。13. The rubber crawler according to claim 1, wherein a top surface of the short lug falls within a plane projection of the metal core.
近づくにつれて順次接地面より内周側に後退させた請求
項１又は２に記載のゴムクローラ。14. The rubber crawler according to claim 1, wherein the outer peripheral surface of the rubber elastic body is sequentially retreated toward the inner peripheral side from the ground contact surface as approaching the width edge.
方向に向かってリブを形成した請求項１又は２に記載の
ゴムクローラ。15. The rubber crawler according to claim 1, wherein a rib is formed on a width edge of an outer peripheral surface of the rubber elastic body in a longitudinal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000325019A JP2001322576A (en) | 2000-03-09 | 2000-10-25 | Rubber crawler |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000071096 | 2000-03-09 | ||
| JP2000-71096 | 2000-03-09 | ||
| JP2000325019A JP2001322576A (en) | 2000-03-09 | 2000-10-25 | Rubber crawler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001322576A true JP2001322576A (en) | 2001-11-20 |
Family
ID=26587479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000325019A Pending JP2001322576A (en) | 2000-03-09 | 2000-10-25 | Rubber crawler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001322576A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004062990A1 (en) * | 2003-01-09 | 2004-07-29 | Bridgestone Corporation | Rubber crawler |
| JP2005335551A (en) * | 2004-05-27 | 2005-12-08 | Sumitomo Rubber Ind Ltd | Rubber crawler |
| JP2006321293A (en) * | 2005-05-17 | 2006-11-30 | Xenith Track Co Ltd | Elastic crawler |
| JP2018524232A (en) * | 2015-07-16 | 2018-08-30 | ディーアールビー インダストリアル カンパニー リミテッドＤｒｂ Ｉｎｄｕｓｔｒｉａｌ Ｃｏ．， Ｌｔｄ． | Rubber track |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004062990A1 (en) * | 2003-01-09 | 2004-07-29 | Bridgestone Corporation | Rubber crawler |
| KR100819198B1 (en) * | 2003-01-09 | 2008-04-02 | 가부시키가이샤 브리지스톤 | Rubber crawler |
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| JP2006321293A (en) * | 2005-05-17 | 2006-11-30 | Xenith Track Co Ltd | Elastic crawler |
| JP2018524232A (en) * | 2015-07-16 | 2018-08-30 | ディーアールビー インダストリアル カンパニー リミテッドＤｒｂ Ｉｎｄｕｓｔｒｉａｌ Ｃｏ．， Ｌｔｄ． | Rubber track |
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