JPS5893679A - Elastic endless track shoe - Google Patents

Abstract

PURPOSE:To enable to prevent an endless track shoe from bogging in a paddy or the like, by a method wherein the outside edges of the inside peripheral surfaces of ear parts on at least one side of an elastic track shoe are formed to be inwardly higher than a plane in which road wheels pass, and a flexible recessed region having a lower deformation resistance is provided in the longitudinal direction at the base of each of the ear parts. CONSTITUTION:The elastic endless shoe, namely, the crawler 6 is provided with the flexible recessed regions 8 having the lower deformation resistance, at the bases of the ears A on at least one side of the crawler 6 and on the outside of the straight line l-l connecting the outside ends of transverse metallic cores 1, and the outside edges 7 of the inside peripheral surfaces of the ears A are formed to be inwardly higher than the plane 9 in which the road wheels pass. When the crawler 6 enters a paddy and sinks, the flexible recessed regions 8 are so curved that the ears A are left behind concurrently with the deformation of ear edges, and the ears A take such positions as to ride on the mud layer on the adjacent side. Accordingly, the ears A of the stopped-side crawler 6 at the time of turning tend to ride onto the mud layer, while the driving-side crawler 6 guides the relative flow of mound ridge in the traveling direction along the ear edges, and travels while riding onto the mud. Accordingly, the vehicle can be turned smoothly.

Description

【発明の詳細な説明】 この発明は１弾性無限軌道帯（以下り゛ローラという）
Ｋ関し、とくに湿田のごとき、車体重量による沈下が著
しいような使途で軽快な旋回操作が容易に行えるように
工夫を凝らした。この種クローラの改良を提案しようと
するものである。[Detailed Description of the Invention] This invention provides an elastic endless track belt (hereinafter referred to as a roller).
Regarding K, we have devised a way to make it easier to perform light turning operations, especially in applications where the vehicle is likely to sink significantly due to its weight, such as in wet fields. This paper attempts to propose improvements to this type of crawler.

一般にクローラは、長手方向に間隔をおいて埋め込み配
設した多数の横置芯金によって幅方向に補強したゴムま
たはゴム状弾性材料の弾性帯よりなシ、横置“芯金は９
弾性帯の輻一杯にわたるような長さではなく、＃１％：
全幅の号程度で。In general, a crawler is made of an elastic band of rubber or rubber-like elastic material reinforced in the width direction by a number of horizontal core metals embedded at intervals in the longitudinal direction.
#1%, not the length that spans the full width of the elastic band:
About the size of the full width.

弾性帯の中央域を占めるのみではあるけれど４゜これに
よって弾性帯の耳縁附近Ｋかなりに高い横方向の剛性を
呈する上に１通常、り藁−ラの全幅にわたる接地ラグに
よって４強化される。Although it only occupies the central region of the elastic band, this results in a considerably higher lateral stiffness near the ear edge of the elastic band, which is usually reinforced by the grounding lugs that span the entire width of the straw. .

かような従来のクローラを装着した車両が。A vehicle equipped with such a conventional crawler.

ゆるい土質の湿田に入ったときに全体の沈下が深くなり
、そのため土中での旋回抵抗が増大し。When entering a wet field with loose soil, the overall settlement becomes deeper, which increases turning resistance in the soil.

また進行前面で堆積、***する盛土の反力がクローラの
は輩全幅にわたって作用するので推進抵抗本通大となり
、これらの抵抗により旋回運動が妨げられるとますます
沈下が迩むような悪循環が結果される不利があった。In addition, the reaction force of the embankment that accumulates and rises at the front of the crawler acts over the entire width of the crawler, resulting in a large propulsion resistance, and when turning movement is impeded by these resistances, a vicious cycle is created in which further subsidence occurs. There was a disadvantage.

この発明は、かような問題点を有利に克服すべく、湿田
の耕土中への沈下を効果的に防止するとともに、進行前
面にわだかまる盛土の±流れを良好に導くように配慮し
たものである。In order to advantageously overcome these problems, this invention is designed to effectively prevent the settling of wet fields into cultivated soil, and to better guide the flow of the embankment that is undulating in front of the field. .

この発明は、長手方向に間隔をおいて埋め込み配設した
多数の横置芯金をそなえ、接地側の外面には 横置芯金と相応する配列でラグを突設したゴムまたはゴ
ム状弾性材料の弾性帯からなシ、該弾性帯の少くとも一
方の耳部の内周面の外端縁が転輪通過面よりも内方に高
く形成されており。This invention is made of rubber or rubber-like elastic material, which is provided with a large number of horizontally placed core metals embedded at intervals in the longitudinal direction, and has lugs protruding from the outer surface on the grounding side in an arrangement corresponding to the horizontally placed core metals. The outer edge of the inner peripheral surface of at least one ear of the elastic band is formed higher inward than the wheel passing surface.

ｔ− 前記耳部のつけ根に変形抵抗の坐さい屈撓囲域を長手方
向に有することを特徴とするクローラに係り、好ましく
は耳部のつけ根から外端縁における外周面は漸次内周側
に傾斜せしめられており、この傾斜面の外端縁は転輪通
過面と略々間し水平位置にあるか戚いはこれよりも内周
側に位置せしめるのがよく、前記の屈撓囲域は残内部が
２〜１０ｍとなる深さで長手方向に沿う溝であるのが通
例である。t- The crawler is characterized in that the base of the ear has a deformation-resisting bending area in the longitudinal direction, and preferably the outer circumferential surface from the base of the ear to the outer edge gradually moves toward the inner circumference. The outer end edge of this inclined surface is preferably located at a horizontal position approximately between the wheel passing surface or on the inner circumferential side thereof, and the outer edge of this inclined surface is preferably located at a horizontal position approximately between the wheel passing surface and the inner circumferential side thereof. Usually, the groove is a longitudinal groove with a depth of 2 to 10 m inside.

この屈撓囲域は、湿田での上記車体重量による沈下を生
じようとするとき、車体の外側耳縁に湾曲をもたらし、
更にクローラの幅方向端である耳部の内周面の外端縁が
転輪通過面よりも内方に高く形成されていることと相ま
って１通常は旋回の際に停止側のクローラの剛直な側縁
が、これに隣接する側方の土層内に押し込まれるような
うれいをなくシ、むしろ容易に乗り上がる傾向を生じる
ため、旋回抵抗の減少に有利に役立ち、また、走行前面
でも、推進反力を受けて、柔軟な耳縁の接地５域で、あ
たかもゴムタイヤに似るような変形を生じて２両サイド
への±流れを容易に導き、盛土状の滞留を軽減するので
、走行抵抗の減少にも寄与できるわけである０ さらには上記耳縁の変形自由度が大きいために、たと°
えスリップを生じようとしたとき＋も。This bending area causes the outer edge of the vehicle body to curve when it attempts to sink due to the vehicle weight in wet fields,
Furthermore, the outer edge of the inner circumferential surface of the ear, which is the widthwise end of the crawler, is formed higher inward than the rolling wheel passing surface. 1 Normally, when turning, the rigidity of the stopped crawler The side edges do not have the tendency to be pushed into the adjacent lateral soil layer, but rather tend to climb up easily, which helps reduce turning resistance. In response to the propulsion reaction force, the contact area of the flexible ear edge deforms as if it were a rubber tire, easily guiding the flow to both sides and reducing embankment-like accumulation, reducing running resistance. Furthermore, since the degree of freedom of deformation of the ear rim is large,
Also when trying to cause a slip.

その原因のラグ間、泥土詰りかはく離し易いので、スリ
ップの軽減にも有利である。The cause of this is mud between the lugs, which is easy to peel off and is also advantageous in reducing slippage.

上記耳縁の屈撓囲域は、残肉厚２〜１０ｍｍとなる深さ
で長手方向に沿う溝により区分形成することが好ましい
が、これに限定されるものでないことは勿論である。It is preferable that the bending area of the ear rim is formed into sections by grooves along the longitudinal direction with a depth of 2 to 10 mm in remaining wall thickness, but it is needless to say that this is not limited to this.

この発明の適用はまた。屈撓囲域におけるラグ配列が一
つおきの交互配列をなすことによるラグ間目詰り排土性
の改善を目指す場合にとくに有利であり、このとき屈撓
囲域に直接向い合う横置芯金の外方端に少くとも５Ｗで
ｌＯ■をこえない薄いゴム被覆とすることがのぞましい
。This invention also has applications. This is particularly advantageous when aiming to improve soil removal performance due to clogging between the lugs by arranging alternately every other lug in the bending area, and in this case, the horizontally placed core bar directly facing the bending area is It is desirable to have a thin rubber coating of at least 5W and no more than 1O2 on the outer end of the tube.

また、耳部における外周面は平置又は曲面をもって漸次
内周側に傾斜している場合においては、湿田等の走行時
にクローラ中央部分が湿田内部の硬質の土層まで沈下し
、耳部の外周傾斜面によって泥土を左右に排除しながら
進行するので、クローラ前面、における泥土の滞留はほ
とんど生起せず従って牽引力のロスは僅少となるもので
ある。In addition, if the outer circumferential surface of the ear part is laid flat or is curved and gradually slopes inward, the center part of the crawler may sink to the hard soil layer inside the wet field when traveling through wet fields, etc., and the outer circumferential surface of the ear part Since the crawler moves while removing mud to the left and right on the inclined surface, mud hardly accumulates on the front surface of the crawler, and therefore the loss of traction force is minimal.

即ち９本発明においては泥土を左右に振り分ける為に推
進力の低下をきたすことなく、かつクローラの周縁をの
りこえてクローラの内周面上に堆積する土砂郷も極めて
少なくなりこれらに起因する異物のかみこみも防止され
脱翰郷も防ぐことかで睡るようになったのである。In other words, in the present invention, the mud is distributed to the left and right without reducing the propulsion force, and the amount of mud deposited on the inner circumferential surface of the crawler that exceeds the periphery of the crawler is extremely reduced. This is because it prevents the ingestion and also prevents the death of the dead.

さて第１図に本発明の具体例を示し、（ａ）は同図（ｂ
）における８−８線に沿う代表断面を、ｔた（ｂ）〜（
ｆ）に接地側の千両を示したみ各図の（ａ）、（ｂｌに
おいてｌは横置芯金、２は横置芯金１取囲む引張り補強
用コードであり、３はラグ、１４はまきかけ駆動に供す
るかみ合い孔であり、また５は横置芯金１に突設した外
れ止め突起であり。Now, FIG. 1 shows a specific example of the present invention, (a) and (b)
), the representative cross section along line 8-8 at t (b) to (
In each figure (a) and (bl), l is the horizontal core metal, 2 is the tension reinforcing cord surrounding the horizontal core metal 1, 3 is the lug, and 14 is the This is a mating hole used for winding drive, and 5 is a retaining protrusion protruding from the horizontal core metal 1.

６で上記の各部をそなえるクローラの全体を示したとこ
ろにおいて従来のこの種クローラとさしたるちがいはな
い。この発明では、クローラ６が、その横置芯金１の外
方端を連ねた直線を−ｔよりも外方へわずかに隔たる少
くとも片側の耳Ａのつけ根部（図示例では両側の耳のっ
け根部）で、変形抵抗の小さい屈撓囲域８を、とくに有
するものとする。6 shows the entire crawler equipped with the above-mentioned parts, and it is not much different from conventional crawlers of this type. In this invention, the crawler 6 connects the straight line connecting the outer ends of the horizontal mandrel 1 to the base of the ear A on at least one side (in the illustrated example, the ears on both sides) that is slightly apart outward than -t. In particular, it has a bending area 8 with low deformation resistance at the base (the root part).

との屈撓囲域８Ｆｉ残肉厚ｔが２〜１ｏ■となる深さで
長手方向に沿う溝よりなるものの例である。This is an example of a groove formed along the longitudinal direction with a depth such that the remaining wall thickness t of the bending surrounding area 8Fi is 2 to 1°.

そして、耳部ムの内周面の外ｊＩｌｌ縁７Ｆ１転輪通過
面９よりも内方に高゛〈形成されているものである。The outer edge 7F1 of the inner circumferential surface of the ear portion is formed higher inward than the rolling wheel passage surface 9.

何れの場合もクローラが平坦路面を走行する間に＃ｉ、
ラグ）の東出端全＠くわたる接地がもたらされるが、湿
田中に侵入して、車体重量によってり目−ラの沈下を生
じようとするとき。In either case, while the crawler is running on a flat road surface, #i,
However, when the vehicle enters a wet field and the weight of the vehicle causes the vehicle to make contact with the ground over the entire east end of the vehicle, the weight of the vehicle causes the vehicle to sink slightly.

屈撓囲域８においてクローラ６の耳ムが取残されるよう
なりローラ６の断面内における湾−が耳縁の変形ととも
にもたらされて、耳ムが、それに隣接する側方の泥土層
Ｋ［接向い合うことが妨げられて、むしろ該泥土層に乗
りか＼るような姿勢を取゛ることとなる。The selvage of the crawler 6 is left behind in the bending area 8, and a bay in the cross section of the roller 6 is created along with the deformation of the selvage edge. They are prevented from facing each other, and instead take a posture as if they are standing on top of the mud layer.

従って該湿田中における旋回操作の必要にょル片側のク
ローラ６を停止させ他側のみを駆動したとき、停止側の
クローラ６の耳ムは、それＫＷｓり合う泥土層中にめ夛
込むよりもむしろ泥土層層上Ｋｌ！！ｌ上ろうとする傾
向が強いため。Therefore, when the crawler 6 on one side is stopped and only the other side is driven when turning operation is required in the wet field, the ear of the crawler 6 on the stopped side is not buried in the corresponding mud layer. Above the mud layer Kl! ! lThere is a strong tendency to move up.

旋回抵抗が大き゛くなる心配はなく、一方で駆動側のク
ローラ６Ｆｉその進行前方で盛夛上ってわだかまる泥土
の滞留に而してその土の相対流動を、湾−した耳縁に沿
って導きむしろ滞留泥土上へ乗り上り乍ら遊合し、推進
抵抗が軽減されて９円滑な旋回運動を湿田内においてす
ら容具に導くことができ、もちろん直進走行中〈おける
推進抵抗の軽減効果も著しい。There is no need to worry about turning resistance increasing, and on the other hand, as the mud piles up and accumulates in front of the drive side crawler 6Fi, the relative flow of the soil is guided along the curved edge of the ear. Rather, they play together while climbing on the accumulated mud, reducing propulsion resistance and allowing smooth turning motion to the container even in wet fields.Of course, the effect of reducing propulsion resistance when traveling straight is also remarkable. .

第１図の（ｃ）　Ｋ　Ｌｄ　、　　ラグ配列の変形に関
してとくに、横置芯金１の配列ピッチに相応してその一
つおきに横置芯金１の全長よりも短かめの副ラグ１０を
交互゛に゛配列した場合の例を示し、このとき、横置芯
金１の外方端が、屈撓囲域８に面するゴム被覆１１を、
少くともう−で１０■をこえない薄いものとする。(c) K Ld in Fig. 1, in particular, regarding the deformation of the lug arrangement, in accordance with the arrangement pitch of the horizontally placed core metal 1, alternately sub lugs 10 shorter than the total length of the horizontally placed core metal 1 are alternately arranged every other. An example is shown in which the outer end of the horizontal core bar 1 covers the rubber coating 11 facing the bending area 8.
It should be at least as thin as -10cm.

こうして屈撓囲域８でとくに線配列ピッチとなるラグ配
列では、クローラの駆動また従動車輪への巻付き域での
変形に基いてラグ間に目詰りした泥土の泥はけを、大い
に改良し、クローラの推進力を大いに増強するのに役立
つ。In this way, the lug arrangement with a particularly linear pitch in the flexure area 8 greatly improves the drainage of mud that is clogged between the lugs due to deformation in the drive of the crawler or in the area wrapped around the driven wheel. , which helps greatly enhance the crawler's propulsion.

同じ＜　（，１）には、接地ラグ３＋および副ラグ１０
を左右に２分し、それぞれや＼斜めのちどり配列に変形
した例を示す。For the same < (,1), ground lug 3+ and secondary lug 10
An example is shown in which it is divided into left and right halves and transformed into a diagonal chidori array.

また同じく（ｅ）には、ラグう１について左右に二分し
た変形の配列を示し、そして同図（ｆ）には単一同形の
ラグ５＋１１’のちとり配列における変形を示した。Similarly, (e) shows a modified arrangement in which the lug 1 is divided into left and right halves, and (f) in the same figure shows a modified arrangement in the chitori arrangement of a single isomorphic lug 5+11'.

以上の各変形例において何れも、第１図の各（ａ）　（
ｂ）に、ついてのべたこの発明の枢要構成を、共通に具
備していることは１図示したとおり明らかである。In each of the above modified examples, each (a) (
As shown in Figure 1, it is clear that the essential components of this invention described in b) are commonly provided.

次に第２図（ａ）、（ｔ））には、第１図の系列と同旨
の枢要構成を同じくするが、崩撓囲域８をとくに軌道帯
の片側にのみ有する場合９例であって。Next, FIGS. 2(a) and (t)) show nine cases in which the same essential configuration as the series in FIG. hand.

特にここに例示したものは中でも他側にはそれを欠除し
てラグうのみを突設させた変形例で。In particular, the one shown here is a modified example in which the other side is omitted and has a protruding lug.

上記の片側を車体の外側に向けて装着することにより、
すでにのべたこの発明による利益を確保したま＼内側つ
まり車体底板で掩われた側でのラグ）の直接突出の下に
推進力の著大な増強が図れる。By installing the above with one side facing the outside of the vehicle body,
In addition to securing the benefits of this invention already mentioned, the propulsive force can be greatly increased by directly protruding the lug on the inside, that is, on the side covered by the bottom plate of the vehicle body.

爽に第５図および第４図には、溝よりなる系統−゛の屈
撓囲域８につき、ラグラの接地面における補助溝８′お
よびラグ５の分断溝８′を、−直線状に切込んで、屈撓
囲域８のラグ５とともＫする湾曲変形を導くことにより
、この発明の目的を一層有利に充足させようとするもの
である。5 and 4, the auxiliary groove 8' on the contact surface of the lug and the dividing groove 8' of the lug 5 are cut linearly for the bending area 8 of the system consisting of grooves. By inducing a curved deformation of the bending envelope 8 which also extends with the lugs 5, the object of the invention is more advantageously achieved.

以上の例において屈撓囲域８は接地面側に設けたものを
もって説明したが内周面側にこれを設けたものであって
もよく、第５図に示すように屈撓囲域８が幅広のもので
あってもよい。In the above example, the flexible surrounding area 8 was explained as being provided on the ground surface side, but it may also be provided on the inner circumferential surface side, and as shown in FIG. 5, the flexible surrounding area 8 is It may be wide.

ｔＩｃ６図は屈撓囲域８がクローラめ内周面及び外周面
の両方に設けられた例であり、（ａ）は凹域８が両面の
＃１ソ同じ位置にあり、（ｂ）は囲域８をや＼内外にず
らして設けた例である。特に前者において耳部Ａに対応
するラグ３をや＼接地面側に突出う…させたものであや
、言ってみればクローラの走行時にか＼るラグ部５　Ｉ
ｌｌが泥土中、においてあたかもオールの如き役目をな
して推進力をアップすることにつながるものである。Figure tIc6 shows an example in which the bending surrounding area 8 is provided on both the inner and outer circumferential surfaces of the crawler. This is an example in which area 8 is shifted slightly inward and outward. In particular, in the former case, the lug 3 corresponding to the ear part A is made to protrude toward the ground surface side.
In muddy soil, the ll acts like an oar and increases propulsion.

第７図は屈撓囲域８が長ギ方向に点状に連なる穴８″ｌ
を穿設して同様の効果を奏したクローラの接地面側の平
面図である。この穴ｇ　Ｉｌｌ　は内周面側に穿設して
も１両側に穿設してもよいことは勿論である。Figure 7 shows holes 8''l in which the bending area 8 is connected in a dotted manner in the long direction.
FIG. 2 is a plan view of the ground plane side of a crawler that has a similar effect by drilling holes therein. Of course, this hole g Ill may be bored on the inner peripheral surface side or on both sides.

尚、前記した横置芯金１は鋳物や鍛造品が一般ではある
が、積置芯金基体を板金１′としこれに円柱状又は楕円
柱状のピン１１を外れ止め突起としてこれに溶接加工し
てなるものも使用されうるものである。この種の横置芯
金１を第８図に例示するが、板金１１の強度不足を補う
ために（ｃ）図のように簡単なプレスにより曲は加工を
し強度を保持することが可能である。The horizontally placed core metal 1 described above is generally a cast or forged product, but the stacked core metal base is a sheet metal 1', and a cylindrical or elliptical pin 11 is welded to this as a retaining protrusion. can also be used. This type of horizontally placed core bar 1 is illustrated in Fig. 8, but in order to compensate for the lack of strength of the sheet metal 11, it is possible to maintain the strength by forming a curve with a simple press as shown in Fig. (c). be.

以上のべたようにして、クローラの耳部におうが湿田の
泥ねい中に沈没することが有利に回避されるので、従来
泥ねい中にたやすく沈下した剛直な耳部がその隣接土層
中にめり込むことに由来するような旋回抵抗を受けるこ
となく軽快な旋回運動をもたらすとともに、上記湾曲は
また進行前方に′ｋＩＥｌｄる泥土との間の相対的な流
動を有利に側傍に誘導して推進抵抗を有効に軽減するこ
とができるわけである。As described above, it is advantageously avoided that the ears of the crawler sink into the mud of the wet field, so that the rigid ears, which conventionally easily sank into the mud, sink into the adjacent soil layer. In addition to bringing about a light turning movement without receiving the turning resistance that would result from being sunk in, the above-mentioned curvature also advantageously directs the relative flow between the mud and the mud in front of the vehicle to the side, thereby promoting the vehicle. This means that resistance can be effectively reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図（ａ）はこの発明の実施例の断面図、第１図（ｂ
）〜（ｒ）　ｕ各々別な変形実施例の接地面側の部分平
面図、第２図（ａ）、（ｂ）は別な実施例の断面図と部
分平面図、第５図、第斗図は他の例の部分平面図、第５
図及び第６図は更に他の例の断面図、第７図は本発明の
更に別例を示す部分平面図、纂８図はクロークに使用さ
れる芯金の例を示す。 ｌ・・・横置芯金、５，５噌ｓ　３’、　３＋＋＋　・
・ラグ。 置芯金外方端ゴム被覆、ム・・・耳部 特許出願人　　ブリデストンタイヤ株式会社；ｉ”　５
　ｒり ；“ご６ぎ （ａ） 、・・７父 （ａ）　　　　’Ｉ’　８ＭFIG. 1(a) is a sectional view of an embodiment of the present invention, FIG. 1(b)
) ~ (r) u Partial plan views of the contact surface side of different modified embodiments, FIGS. 2(a) and (b) are sectional views and partial plan views of other embodiments, FIG. The figure is a partial plan view of another example.
6 and 6 are sectional views of still another example, FIG. 7 is a partial plan view showing still another example of the present invention, and FIG. 8 shows an example of a core metal used in a cloakroom. l...Horizontal core metal, 5.5 s 3', 3+++ ・
・Lug. Rubber coating on the outer end of the core, the ear portion Patent applicant Brideston Tire Co., Ltd.; i” 5
ri; “go6gi (a),...7 father (a) 'I' 8M

Claims (3)

【特許請求の範囲】[Claims] （１）　　長手方向に間隔をおいて埋め込み配設した多
数の横置芯金をそなえ、ＩＩ地側の外面には横置芯金と
相応する配列でラグを失投したゴムまたはゴム状弾性材
料の弾性帯より成り。 該弾性帯の少くとも一方の耳部の内周面の外端縁が転輪
通過面よりも内方に高く形成されており、前記耳部のつ
け根に変形抵抗の小さい屈撓囲域を長手方向に有するこ
とを特徴とする弾性無限軌道帯〇(1) A rubber or rubber-like elastic material having a large number of horizontal core metals embedded at intervals in the longitudinal direction, and having lugs arranged in a manner corresponding to the horizontal metal cores on the outer surface of the second base side. Consists of elastic bands. The outer edge of the inner circumferential surface of at least one ear of the elastic band is formed higher inward than the wheel passing surface, and a bending area with low deformation resistance is provided at the base of the ear in the longitudinal direction. Elastic endless track belt characterized by having in the direction〇 （２）　　特許請求の範囲第１項記載の弾性無限軌道帯
において、耳部のつけ枳から外端縁における外周面は漸
次内周側に傾斜せしめられており、この傾斜面の外端縁
は転輪通過面と略々間し水平位置にあるか或いはこれよ
りも内周側に位置せしめることを特徴とする弾性無限軌
道帯。(2) In the elastic endless track belt according to claim 1, the outer circumferential surface from the outer end edge of the ear portion is gradually inclined toward the inner circumferential side, and the outer edge of this inclined surface is An elastic endless track belt that is located at a horizontal position approximately between and on the inner circumferential side of a wheel passing surface. （３）％許請求の範囲第１項記載の弾性無限軌道帯にお
いて、屈撓囲域は残内部が２〜１０閣となる深さで長手
方向に沿う溝であることを４１像とする弾性無限軌道帯
。(3) In the elastic endless track belt according to claim 1, the flexure surrounding area is a groove extending along the longitudinal direction with a depth of 2 to 10 mm in the remaining interior. endless track belt.