JPH09301232A - Rubber crawler - Google Patents

Rubber crawler

Info

Publication number
JPH09301232A
JPH09301232A JP14817396A JP14817396A JPH09301232A JP H09301232 A JPH09301232 A JP H09301232A JP 14817396 A JP14817396 A JP 14817396A JP 14817396 A JP14817396 A JP 14817396A JP H09301232 A JPH09301232 A JP H09301232A
Authority
JP
Japan
Prior art keywords
rubber
projection
protrusion
rubber crawler
bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14817396A
Other languages
Japanese (ja)
Inventor
Katsuhiko Tsunoda
克彦 角田
Shingo Kato
信吾 加藤
Yoshihide Fukahori
美英 深堀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP14817396A priority Critical patent/JPH09301232A/en
Priority to US08/839,303 priority patent/US5984438A/en
Publication of JPH09301232A publication Critical patent/JPH09301232A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To minimize the slippage of a rolling wheel, prevent the wear, deformation or breakage of a projection, and resist the temperature rise of the projection surface by the friction in traveling by exposing a heat resisting thermosetting member having low frictional performance on the contact surface with the other member of the projection. SOLUTION: A circular sectional bar-like body 31 is buried in a projection 2 toward the lateral direction of a rubber crawler. The bar-like body 31 is made of bakelite, and both ends 311 , 312 are exposed to the lateral side surfaces 4, 5 of the projection 2. To bury the bar-like body 31 into the projection 2, the bar-like body 31 is fitted into the recessed part of a metal mold for forming the projection 2, and a rubber 1 constituting the base of the rubber crawler is filled into the metal mold. The both are cured and adhered by the adhering force in the curing of the rubber 1, and integrated together. Both the ends 311 , 312 of the bar-like body 31 are exposed to both the end surfaces 4, 5 of the projection 2, and make contact in the contact or collision with a rolling wheel, idler or sprocket. Since the bar-like body 31 is low frictional, the slippage with the rolling wheel is reduced, the wear or breakage is minimized, and the traveling resistance is also remarkably reduced.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は、車両の走行部に使用さ
れるゴムクロ−ラに関するものであって、特に、ゴムク
ロ−ラの内周面より突出する突起の改良に係るものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber crawler used for a traveling portion of a vehicle, and more particularly to an improvement in a protrusion protruding from an inner peripheral surface of a rubber crawler.

【0002】[0002]

【従来の技術】一般には、ゴムクロ−ラの内周面にその
長手方向に向って突起が連続的に形成されており、かか
る突起はスプロケットからの駆動力の伝達に供され、或
いは転輪との外れ防止として機能している。特に転輪と
の間の外れ防止にあっては、ゴムクロ−ラが横方向の力
を受け、転輪との間に相対的にズレを生じた場合、転輪
を突起との間で接触・衝突が繰り返され、このズレを元
の状態に戻そうとすることになる。このため、突起に摩
擦力が加えられ転輪との間で脱輪が生じ、更には摩耗や
破損が生じることとなる。
2. Description of the Related Art In general, a projection is continuously formed on an inner peripheral surface of a rubber crawler in a longitudinal direction thereof, and the projection is used for transmitting a driving force from a sprocket, or is connected to a rolling wheel. It functions as a slip-off prevention. In particular, in order to prevent disengagement from the rolling wheel, if the rubber crawler receives a lateral force and is relatively displaced from the rolling wheel, the rolling wheel contacts with the protrusion. The collision is repeated, and the deviation is to be returned to the original state. For this reason, a frictional force is applied to the projection, and the wheel is separated from the rolling wheel, and further, wear and breakage occur.

【0003】図14〜図15は、かかる状態を示すゴム
クロ−ラ11の内周面であって、図14は無端状ゴム弾
性体より一対の突起12、12が突出した形状のもので
あり、転輪20は通常はこの突起12、12を跨いで転
動するが、ゴムクロ−ラ11と転輪20との間で相互に
ズレが生じた場合には、転輪20は点線で示す(一方の
みを示す)ように突起12、12と接触・衝突し、転輪
20のズレを規制して元の転動面に戻そうとする。この
ため、突起12、12の特に外側面での摩擦力が大きく
加えられ、転輪との間で脱輪が発生し易く、場合によっ
ては、摩耗や破損が生じることとなる。
14 to 15 show the inner peripheral surface of the rubber crawler 11 in such a state. FIG. 14 shows a shape in which a pair of protrusions 12 and 12 project from an endless rubber elastic body. The rolling wheel 20 normally rolls over the protrusions 12, 12, but when a deviation occurs between the rubber crawler 11 and the rolling wheel 20, the rolling wheel 20 is indicated by a dotted line (one side Contacting and colliding with the projections 12, 12 as shown in FIG. For this reason, a large frictional force is applied to the protrusions 12 and 12, especially on the outer side surfaces thereof, and derailment between the protrusions 12 and 12 is likely to occur, resulting in wear or damage in some cases.

【0004】一方、図15は、一本突起12を突出させ
たゴムクロ−ラであるが、これも又、転輪20が正規の
転動位置よりズレた場合には、転輪20と突起12が点
線で示すように接触・衝突を繰り返してズレを防止する
こととなり、この場合にも前記と同様に転輪との間で脱
輪が発生し易く、場合によっては、摩耗や破損が生じる
こととなる。又、かかる突起12は、図示しないスプロ
ケットと係合し、駆動力の伝達に供される際に、スプロ
ケットピンと突起12とは常に擦れを生じており、この
ため、突起12の特に根元部に変形が加えられ、このた
め転輪との間で脱輪が発生し易いばかりでなく、この部
分に摩耗や破損を生じ易く、特に突起12がゴムででき
ている場合にこの傾向が大きい。
On the other hand, FIG. 15 shows a rubber crawler in which a single projection 12 is projected. Again, when the rolling wheel 20 is displaced from the normal rolling position, the rolling wheel 20 and the projection 12 are also shown. As shown by the dotted line, contact and collision are repeated to prevent deviation.In this case as well, derailment with the rolling wheels easily occurs, and in some cases wear and damage may occur. Becomes Further, the protrusion 12 engages with a sprocket (not shown), and when the driving force is transmitted, the sprocket pin and the protrusion 12 always rub against each other. Therefore, the protrusion 12 is deformed especially at the root portion. Therefore, not only is there a tendency for derailment to occur with the rolling wheels, but also for easy wear or damage to this portion, especially when the projection 12 is made of rubber.

【0005】更に言えば、この転輪20と突起12との
接触・衝突時には、大きな走行抵抗が生じエネルギ−の
ロスをもきたしていた。
[0005] Furthermore, when the rolling wheel 20 and the projection 12 come into contact with each other or collide with each other, a large running resistance is generated, resulting in a loss of energy.

【0006】[0006]

【発明が解決しようとする課題】本発明は、以上のよう
な従来の技術に鑑みてなされたものであり、ゴムクロ−
ラの内周面に突出する突起を特殊な構造とし、転輪との
間での脱輪の発生を少なくし、突起を摩耗・変形・破損
等から保護することを目的とするもので、更には、走行
時に摩擦によって生じる突起の表面の昇温にも耐え得る
部材を突起と一体的に結合して課題を解決するものであ
る。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional techniques.
The protrusion that protrudes on the inner peripheral surface of the la has a special structure to reduce the occurrence of derailment with the rolling wheel and to protect the protrusion from wear, deformation, damage, etc. In order to solve the problem, a member that can withstand the temperature rise on the surface of the protrusion caused by friction during traveling is integrally coupled with the protrusion.

【0007】[0007]

【課題を解決するための手段】本発明は、以上の目的を
達成するため鋭意研究を進めた結果、突起を次のような
構成として改良をなしたものである。即ち、本発明の要
旨は、無端状ゴム弾性体の外周面にゴムラグを形成し、
内周面に駆動力の伝達或いは転輪との外れ防止に供され
る突起を形成してなるゴムクロ−ラであって、当該突起
における他部材との接触面に、低摩擦性能を有する耐熱
性熱硬化性樹脂部材を露出させたことを特徴とするゴム
クロ−ラである。
DISCLOSURE OF THE INVENTION As a result of intensive studies to achieve the above object, the present invention has been improved with the projection having the following structure. That is, the gist of the present invention is to form a rubber lug on the outer peripheral surface of the endless rubber elastic body,
A rubber crawler having a protrusion provided on the inner peripheral surface for transmitting a driving force or for preventing disengagement from a rolling wheel, wherein the contact surface of the protrusion with another member has low friction performance and heat resistance. It is a rubber crawler characterized by exposing a thermosetting resin member.

【0008】そして、好ましくは、熱硬化性樹脂部材を
ゴムクロ−ラを形成する金型内にセットし、次いでゴム
材料を充填して熱硬化性樹脂部材を突起と一体成形した
ゴムクロ−ラを提供するものである。熱硬化性樹脂部材
は、好ましくは熱分解温度が200℃以上の性状を有す
るものがよい。
Preferably, a thermosetting resin member is set in a mold for forming a rubber crawler, and then a rubber material is filled to provide a rubber crawler in which the thermosetting resin member is integrally formed with a protrusion. To do. The thermosetting resin member preferably has a property that the thermal decomposition temperature is 200 ° C. or higher.

【0009】[0009]

【発明の実施の形態】本発明は以上のような構成を採用
するものであり、特に転輪と常に係合する突起にあっ
て、転輪等の他の部材との接触・衝突が繰り返される面
部に低摩擦性能を有する耐熱性熱硬化性樹脂部材を露出
させたものである。従って、特に転輪のズレを制御する
場合にあっても、突起と転輪との間の脱輪性の改良がな
され、しかも突起の摩耗等が少なく、しかも走行抵抗も
小さいゴムクロ−ラとなったものである。
BEST MODE FOR CARRYING OUT THE INVENTION The present invention employs the above-described structure, and in particular, the protrusions that are constantly engaged with the rolling wheels are repeatedly contacted and collided with other members such as the rolling wheels. The heat-resistant thermosetting resin member having low friction performance is exposed on the surface portion. Therefore, even in the case of controlling the displacement of the rolling wheel, particularly, the declutching property between the projection and the rolling wheel is improved, and the abrasion and the like of the projection are reduced and the running resistance is reduced. It is a thing.

【0010】そして、特に摩擦によって生ずる突起の表
面の温度上昇にも耐えられる樹脂部材を特に選択したこ
とによってその効果を更に顕著にしたものである。即
ち、突起駆動型ゴムクロ−ラを4輪に装着した車両を用
い、半径15mm、時速25kmで旋回走行試験を実施
し、走行時間10分毎に突起表面の温度を測定すると、
走行時間40分後に180℃以上まで昇温することが判
明した。従って、本発明においては低摩擦特性を有する
と共に熱分解温度(短期的に化学変化する温度)が20
0℃以上の、いわゆる耐熱性を有する熱硬化性樹脂をこ
こに採用したものである。
The effect is made more remarkable by selecting a resin member that can withstand the temperature rise on the surface of the protrusion caused by friction. That is, using a vehicle equipped with four wheels of a protrusion driving type rubber crawler, a turning test was conducted at a radius of 15 mm and a speed of 25 km per hour, and the temperature of the protrusion surface was measured every 10 minutes of running time.
It was found that the temperature rose to 180 ° C. or higher after 40 minutes of running time. Therefore, in the present invention, it has a low friction property and has a thermal decomposition temperature (temperature at which it chemically changes in the short term) of 20.
A thermosetting resin having a so-called heat resistance of 0 ° C. or higher is adopted here.

【0011】ここで本発明で特に選択される熱硬化性樹
脂としては、フェノ−ル樹脂(ベ−クライト)、尿素樹
脂、メラミン樹脂、不飽和ポリエステル樹脂、アリル樹
脂、エポキシ樹脂等が挙げられ、更にこれらの樹脂に木
綿、紙、布、ガラス繊維、石綿等で強化した樹脂も適用
することができる。尚、樹脂部材の形状としては棒状
体、板状体、筒状体、盤状体、ダンベル状体等任意の形
状の部材が用いられ得る。
Examples of the thermosetting resin particularly selected in the present invention include phenol resin (Bakelite), urea resin, melamine resin, unsaturated polyester resin, allyl resin and epoxy resin. Further, a resin reinforced with cotton, paper, cloth, glass fiber, asbestos or the like can be applied to these resins. As the shape of the resin member, a member having any shape such as a rod-shaped body, a plate-shaped body, a cylindrical body, a plate-shaped body or a dumbbell-shaped body may be used.

【0012】[0012]

【実施例】以下、本発明を実施例に基づいて更に詳細に
説明する。図1は本発明のゴムクロ−ラの第1例であ
り、突起2のみを取り出した斜視図であり、図2はその
側面図である。この突起2はゴムクロ−ラを構成するゴ
ム1の内周面より30mmの高さ(H)を有し、ゴムク
ロ−ラの幅方向の長さ(L1)が60mm、ゴムクロ−
ラの長手方向における頂部の長さ(L2 )が25mm、
基部の長さ(L2 )が55mmであった。そして突起2
の左右側面4、5前後面7、8は所望の斜視角をもって
構成される。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to embodiments. FIG. 1 is a first example of the rubber crawler of the present invention, and is a perspective view showing only the protrusion 2, and FIG. 2 is a side view thereof. The protrusion 2 has a height (H) of 30 mm from the inner peripheral surface of the rubber 1 constituting the rubber crawler, and the length (L 1 ) in the width direction of the rubber crawler is 60 mm.
The length (L 2 ) of the top in the longitudinal direction of the la is 25 mm,
The length (L 2 ) of the base was 55 mm. And protrusion 2
The left and right side surfaces 4, 5 and the front and rear surfaces 7, 8 are configured with a desired perspective angle.

【0013】さて、直径20mmの断面円形の棒状体3
1 をゴムクロ−ラの幅方向に向けて突起2中に埋設し
た。この棒状体31 はベ−クライト製であり、その両端
11、312は突起2の左右側面4、5に露呈させたもの
である。棒状体3を突起2中に埋設するには突起2を形
成する凹部を備えた金型を用い、この凹部内に棒状体3
1 を嵌め込み、この状態を維持しつつゴムクロ−ラの基
体を構成するゴム材料1を金型内に充填することにより
得られ、両者はゴム1の加硫時の接着力によって加硫接
着させて一体化させるものである。尚、場合によって
は、フェノ−ル系、エポキシ系、ゴム系接着剤等を一種
或いはこれらを組み合わせて用い、加硫接着してもよい
ことは勿論である。
Now, a rod-shaped body 3 having a circular cross section with a diameter of 20 mm
1 was embedded in the protrusion 2 in the width direction of the rubber crawler. The rod-shaped body 3 1 is made of Becklite, and both ends 3 11 and 3 12 thereof are exposed on the left and right side surfaces 4 and 5 of the protrusion 2. To embed the rod-shaped body 3 in the protrusion 2, a mold having a recessed portion that forms the protrusion 2 is used.
It is obtained by inserting 1 and filling the mold with the rubber material 1 which forms the base of the rubber crawler while maintaining this state, and both are vulcanized and bonded by the adhesive force when the rubber 1 is vulcanized. It is to be integrated. Of course, in some cases, one type or a combination of phenol type, epoxy type and rubber type adhesives may be used for vulcanization adhesion.

【0014】図にて分るように、突起2の両側面4、5
に棒状体31 の両端311、312を露出しており、転輪や
図示しないアイドラ−、スプロケット等との接触・衝突
時にこれらと接触するものであり、棒状体31 の特性よ
り低摩擦性であって、このため転輪との間での脱輪が減
少し、又摩耗や破損が少なく、走行抵抗も著しく低下す
ることとなる。
As shown in the figure, both side surfaces 4, 5 of the protrusion 2 are
Since both ends 3 11 and 3 12 of the rod-shaped body 3 1 are exposed at the time of contact or collision with a rolling wheel, an idler, a sprocket, or the like (not shown), they are lower than the characteristics of the rod-shaped body 3 1. Since it is frictional, the number of wheels removed from the rolling wheels is reduced, wear and damage are reduced, and running resistance is significantly reduced.

【0015】図3は本発明のゴムクロ−ラの第2例であ
り、直径20mm、厚さ5mmの円盤状の樹脂32 (ベ
−クライト製)を突起2の側面4、5に一方の面が露呈
するように埋設したものである。これもゴム材料1の加
硫時に金型の凹部内に樹脂32 をセットして加硫接着し
たものである。
FIG. 3 shows a second example of the rubber crawler of the present invention, in which a disk-shaped resin 3 2 (made by Becklite) having a diameter of 20 mm and a thickness of 5 mm is formed on the side surfaces 4 and 5 of the projection 2 on one side. It is buried so that it is exposed. This is also one in which the resin 3 2 is set to wear vulcanization in a recess in the mold of the vulcanization rubber material 1.

【0016】図4は本発明のゴムクロ−ラの第3例を示
す突起2の斜視図であり、図5はその側面図である。こ
の例にあっては平板状の樹脂板33 (ベ−クライト製)
を突起2の幅方向の中央に埋設したものであって、その
両端331、332が突起2の左右側面4、5に露呈したも
のである。尚、平板状の樹脂板33 の厚さは10mmで
あり、これ又、ゴム材料1との間で加硫接着して一体化
することになる。尚、この例では突起2は前後面7、8
が2段傾斜面とされている。かかる突起2の概形はゴム
クロ−ラの長手方向の頂面の幅が10mm、基底部の幅
60mm、そして高さ(H)40mm、頂部より15m
mの位置で前後面7、8にて折曲部9が形成されてい
る。
FIG. 4 is a perspective view of a protrusion 2 showing a third example of the rubber crawler of the present invention, and FIG. 5 is a side view thereof. In this example, a flat resin plate 3 3 (made by Becklite)
Is embedded in the center of the protrusion 2 in the width direction, and both ends 3 31 and 3 32 thereof are exposed to the left and right side faces 4 and 5 of the protrusion 2. The thickness of the plate-shaped resin plate 3 3 is 10 mm, which also will be integrated by vulcanization between the rubber material 1. In addition, in this example, the protrusion 2 has front and rear surfaces 7, 8
Is a two-step inclined surface. The outline of the protrusion 2 is such that the width of the top surface in the longitudinal direction of the rubber crawler is 10 mm, the width of the base is 60 mm, the height (H) is 40 mm, and the height is 15 m.
A bent portion 9 is formed at front and rear surfaces 7 and 8 at a position of m.

【0017】尚、これらの各例にあって、突起2の表面
を別の補強材で保護することもよく、図6は、ゴムクロ
−ラの長手方向に連続又は不連続の補強帆布10をゴム
クロ−ラの内面及びその突起2の表面を覆うものであ
る。この帆布も捲縮性、非捲縮性のいずれでもよく、こ
れらも金型内に帆布をセットし、ゴム材料1との間で加
硫接着されるものである。
In each of these examples, the surface of the protrusion 2 may be protected by another reinforcing material. In FIG. 6, the reinforcing canvas 10 which is continuous or discontinuous in the longitudinal direction of the rubber crawler is shown in FIG. -To cover the inner surface of the la and the surface of the protrusion 2 thereof. This canvas may be either crimping or non-crimping, and these are also those in which a canvas is set in a mold and vulcanized and bonded to the rubber material 1.

【0018】図7は本発明の第4例のゴムクロ−ラの内
周面を示し、図8は図7のA−A線での、図9は図7の
B−B線での各断面を示すものである。この例にあって
は、十文字状に形成された低摩擦性を有するの樹脂部材
4 を突起2内に一体としたものであり、突起2の両側
面4、5、前後面7、8に、かかる部材34 の表面が露
出している。勿論、頂面6に露出する場合もある。この
ように構成された突起2にあっては、転輪との接触・衝
突における場合と同様、スプロケットとの接触の際の突
起2の摩耗や破損の防止にも効果があることとなる。こ
の部材34 にあっては、これ又金型内にセットするだけ
でよく、場合によっては、4つに分割された低摩擦部材
であってもよい。
FIG. 7 shows the inner peripheral surface of the rubber crawler of the fourth example of the present invention, FIG. 8 is a cross section taken along the line AA of FIG. 7, and FIG. 9 is a cross section taken along the line BB of FIG. Is shown. In the this example, the resin member 3 4 has a low friction formed in a cross shape is obtained by integrated into the projections 2, both side surfaces 4 and 5 of the projections 2, the front and rear surfaces 7,8 The surface of the member 3 4 is exposed. Of course, it may be exposed on the top surface 6. The protrusion 2 thus configured has an effect of preventing abrasion and damage of the protrusion 2 when it comes into contact with the sprocket, as in the case of contact and collision with the wheel. In the this member 3 4, it is sufficient to set in this Matakin type, in some cases, it may be a low friction member that is divided into four.

【0019】図10〜図13は本発明の第5例を示すも
のであり、図10はその内周面における平面図、図11
は外周面における平面図、図12はC−C線での断面
図、図13はD−D線での断面図を示す。かかる例にあ
っては、突起2におけるゴムクロ−ラの長手方向に山形
に低摩擦性を有する樹脂部材35 を配置したもので、こ
れによって、転輪との擦れと、駆動ピンとの擦れに対し
て極めて大きな効果を発揮することになる。
10 to 13 show a fifth example of the present invention. FIG. 10 is a plan view of the inner peripheral surface thereof, and FIG.
Is a plan view of the outer peripheral surface, FIG. 12 is a sectional view taken along line CC, and FIG. 13 is a sectional view taken along line DD. In the above examples, the Gomukuro in projection 2 - which was arranged resin member 35 having a low friction in the longitudinal direction of La Yamagata, thereby, the friction between the track roller, with respect to rubbing between the drive pin Will be extremely effective.

【0020】尚、この低摩擦を有する樹脂部材はゴムク
ロ−ラの他の部分にも適用可能であり、例えば、ゴムク
ロ−ラの内周面における転輪の転動面にこれを適用する
ことができ、更には一対の突起間にこれを用いることも
可能である。又、場合によっては、この低摩擦部材をス
プロケット側にこれを採用することも可能である。
The resin member having a low friction can be applied to other parts of the rubber crawler, for example, it can be applied to the rolling surface of the rolling wheel on the inner peripheral surface of the rubber crawler. It is also possible to use this between the pair of protrusions. In some cases, this low friction member can be used on the sprocket side.

【0021】(試験例)図1にて示すゴムクロ−ラをも
って本発明の特徴を更に明らかにする。直径20mmの
各種棒状体3を作製し、これを突起2内に埋設したゴム
クロ−ラであり、特に突起2のゴム材料は表1に示す配
合によった。この配合によって得られたゴム性状は、H
d:82度、M300 :130kgf/cm2 、Tb:1
90kgf/cm2 、Eb:430%であった。
(Test Example) The characteristics of the present invention will be further clarified by using the rubber crawler shown in FIG. Various types of rods 3 each having a diameter of 20 mm were produced and embedded in the projections 2, and the rubber material of the projections 2 was particularly as shown in Table 1. The rubber property obtained by this compounding is H
d: 82 °, M 300: 130kgf / cm 2 , Tb: 1
90 kgf / cm 2 , Eb: 430%.

【0022】[0022]

【表1】 [Table 1]

【0023】試験例1は樹脂を埋設しないゴム材料のみ
の例、試験例2は超高分子量ポリエチレン製の樹脂を用
い、これらの試験例はいずれも本発明にて規定する樹脂
を使用しない例である。試験例3は本発明にて規定する
樹脂をもちいた例であり、布入りのベ−クライト樹脂を
使用してゴムクロ−ラを得たものである。
Test Example 1 is an example of only a rubber material in which no resin is embedded, Test Example 2 is a resin of ultra high molecular weight polyethylene, and all of these Test Examples are examples in which the resin specified in the present invention is not used. is there. Test Example 3 is an example in which the resin specified in the present invention is used, and a rubber chlore is obtained by using a Bakelite resin containing cloth.

【0024】(試験法)試験法は前記した方法と同様で
あり、突起駆動型ゴムクロ−ラを四輪に装着した車両を
半径15mm、時速25kmで旋回走行試験を実施し、
走行10分毎に突起の状況を確認した。そして、突起の
側面摩耗状況の試験方法は、走行10分毎に突起頂部か
ら30mmの所(L1 mm)の長さ(L2 mm)を実測
し、(L1 −L2 mm)を摩耗幅とした。
(Test Method) The test method is the same as that described above, and a vehicle equipped with four wheel drive projection type rubber crawlers is subjected to a turning test at a radius of 15 mm and a speed of 25 km / hour.
The condition of the protrusion was checked every 10 minutes of running. Then, the test method of the side surface wear condition of the protrusion is that the length (L 2 mm) at a position 30 mm (L 1 mm) from the top of the protrusion is measured every 10 minutes of running, and (L 1 −L 2 mm) is worn. Width

【0025】(試験結果)試験結果を表2に示す。(Test Results) Table 2 shows the test results.

【0026】[0026]

【表2】 [Table 2]

【0027】試験の結果、樹脂材料を全く用いない試験
例1にあっては走行試験開始10分後にすでに摩耗が始
まり、60分後には幅17mmの摩耗となっている。
又、超高分子量ポリエチレン棒を用いた試験例1にあっ
ては、走行試験開始後30分で樹脂棒が軟化し、更に摩
耗の発生が確認され、走行試験開始60分後には11.
8mmの摩耗量であった。
As a result of the test, in Test Example 1 in which no resin material is used, the wear has already started 10 minutes after the start of the running test, and the wear has a width of 17 mm after 60 minutes.
In Test Example 1 using the ultra high molecular weight polyethylene rod, it was confirmed that the resin rod was softened 30 minutes after the start of the running test and further abrasion was generated.
The amount of wear was 8 mm.

【0028】しかるに、本発明の試験例である試験例3
にあっては、走行試験開始後60分後にあっても突起側
面の摩耗は見られず、又、走行試験開始後40分後にあ
って突起の表面温度が180℃を越えたが樹脂に軟化の
発生は見られなかった。摩耗の発生もなかった。
However, Test Example 3 which is a test example of the present invention
There was no abrasion on the side surface of the protrusion even 60 minutes after the start of the running test, and the surface temperature of the protrusion exceeded 180 ° C 40 minutes after the start of the running test, but the resin softened. No outbreak was observed. There was no occurrence of wear.

【0029】[0029]

【発明の効果】本発明は以上の構成を採用したものであ
り、ゴムクロ−ラの特に機体側に備えられた部材との接
触・衝突が繰り返される突起にあって、特殊な性状の樹
脂部材を露出させてなるものである。このため、特に転
輪とのズレによる接触・衝突が生じたとしても、摩耗や
破損が極く少なくなり、更に走行抵抗も減少することと
なり、ゴムクロ−ラの寿命が著しく向上したものとなっ
た。
The present invention employs the above-described structure, and is provided with a resin member having a special property in a projection in which contact and collision with a rubber crawler, in particular, a member provided on the body side are repeated. It is made to be exposed. Therefore, even if a contact or collision occurs due to a deviation from the wheel, abrasion and damage are minimized, running resistance is also reduced, and the life of the rubber crawler is remarkably improved. .

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

【図1】図1は本発明のゴムクロ−ラの第1例であり、
その突起近傍を特に取出した斜視図である。
FIG. 1 is a first example of a rubber crawler according to the present invention;
It is the perspective view which took out especially the vicinity of the protrusion.

【図2】図2は図1の突起近傍における側面図である。FIG. 2 is a side view in the vicinity of a protrusion in FIG. 1;

【図3】図3は本発明のゴムクロ−ラの第2例であり、
その突起近傍を特に取出した斜視図である。
FIG. 3 is a second example of the rubber crawler of the present invention,
It is the perspective view which took out especially the vicinity of the protrusion.

【図4】図4は本発明のゴムクロ−ラの第3例であり、
その突起近傍を特に取出した斜視図である。
FIG. 4 is a third example of the rubber crawler according to the present invention,
It is the perspective view which took out especially the vicinity of the protrusion.

【図5】図5は図4の突起近傍における側面図である。FIG. 5 is a side view in the vicinity of a protrusion in FIG. 4;

【図6】図6は本発明のゴムクロ−ラにおける更に好ま
しい例を示す突起近傍の斜視図である。
FIG. 6 is a perspective view of the vicinity of a protrusion showing a further preferred example of the rubber crawler of the present invention.

【図7】図7は本発明の第4例を示すゴムクロ−ラの内
周面である。
FIG. 7 is an inner peripheral surface of a rubber roller according to a fourth embodiment of the present invention.

【図8】図8は図7のA−A線での断面図である。FIG. 8 is a sectional view taken along line AA of FIG. 7;

【図9】図9は図7のB−B線での断面図である。FIG. 9 is a sectional view taken along the line BB of FIG. 7;

【図10】図10は本発明の第5例を示すゴムクロ−ラ
の内周平面図である。
FIG. 10 is an inner circumferential plan view of a rubber crawler showing a fifth embodiment of the present invention.

【図11】図11は図10のゴムクロ−ラの外周平面図
である。
FIG. 11 is an outer peripheral plan view of the rubber crawler of FIG. 10;

【図12】図12は図10のゴムクロ−ラのC−C線で
の断面図である。
FIG. 12 is a cross-sectional view of the rubber crawler of FIG. 10 taken along the line CC.

【図13】図13は図10のゴムクロ−ラのD−D線で
の断面図である。
FIG. 13 is a cross-sectional view of the rubber crawler of FIG. 10 taken along the line DD.

【図14】図14は従来の一対の突起におけるゴムクロ
−ラの内周面である。
FIG. 14 is an inner peripheral surface of a rubber crawler in a conventional pair of protrusions.

【図15】図15は従来の一本突起におけるゴムクロ−
ラの内周面である。
FIG. 15 is a rubber cross section of a conventional single protrusion.
It is the inner surface of LA.

【符号の説明】 1‥‥ゴムクロ−ラを構成するゴム、 2‥‥突起、 3、31 、32 、33 、34 、35 ‥‥熱可塑性突起部
材、 4、5‥‥突起の側面、 6‥‥突起の頂面、 7、8‥‥突起の前後面。
[Explanation of reference numerals] 1 ... rubber constituting the rubber crawler, 2 ... protrusion, 3, 3 1 , 3 2 , 3 3 , 3 4 , 3 5 ... thermoplastic protrusion member, 4, 5 ... protrusion Sides of the projection, 6 ... Top surface of the projection, 7, 8 ... Front and back surfaces of the projection.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 無端状ゴム弾性体の外周面にゴムラグを
形成し、内周面に駆動力の伝達或いは転輪との外れ防止
に供される突起を形成してなるゴムクロ−ラであって、
当該突起における他部材との接触面に、低摩擦性能を有
する耐熱性熱硬化性樹脂部材を露出させたことを特徴と
するゴムクロ−ラ。
1. A rubber crawler comprising a rubber lug formed on an outer peripheral surface of an endless rubber elastic body, and a projection formed on an inner peripheral surface for transmitting a driving force or preventing slippage from a wheel. ,
A rubber crow characterized in that a heat-resistant thermosetting resin member having low friction performance is exposed on the contact surface of the protrusion with another member.
【請求項2】 前記突起がゴム突起であり、低摩擦性能
を有する耐熱性熱硬化性樹脂部材をゴムクロ−ラを形成
する金型内にセットし、次いでゴム材料を充填して前記
熱硬化性樹脂部材を突起と一体成形した請求項第1項記
載のゴムクロ−ラ。
2. The above-mentioned protrusions are rubber protrusions, and a heat-resistant thermosetting resin member having a low friction performance is set in a mold forming a rubber crawler, and then a rubber material is filled therein to make the thermosetting resin. The rubber crawler according to claim 1, wherein the resin member is integrally molded with the protrusion.
【請求項3】 熱分解温度が200℃以上の熱硬化性樹
脂部材を用いた請求項第1項及び第2項記載のゴムクロ
−ラ。
3. The rubber crawler according to claim 1, wherein a thermosetting resin member having a thermal decomposition temperature of 200 ° C. or higher is used.
JP14817396A 1996-05-16 1996-05-16 Rubber crawler Pending JPH09301232A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP14817396A JPH09301232A (en) 1996-05-16 1996-05-16 Rubber crawler
US08/839,303 US5984438A (en) 1996-05-16 1997-04-18 Rubber track

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14817396A JPH09301232A (en) 1996-05-16 1996-05-16 Rubber crawler

Publications (1)

Publication Number Publication Date
JPH09301232A true JPH09301232A (en) 1997-11-25

Family

ID=15446887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14817396A Pending JPH09301232A (en) 1996-05-16 1996-05-16 Rubber crawler

Country Status (1)

Country Link
JP (1) JPH09301232A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1134942A (en) * 1997-07-23 1999-02-09 Bridgestone Corp Rubber crawler
JP2010089729A (en) * 2008-10-10 2010-04-22 Bridgestone Corp Coreless rubber crawler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1134942A (en) * 1997-07-23 1999-02-09 Bridgestone Corp Rubber crawler
JP2010089729A (en) * 2008-10-10 2010-04-22 Bridgestone Corp Coreless rubber crawler

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