JP4608296B2 - Rubber crawler - Google Patents
Rubber crawler Download PDFInfo
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- JP4608296B2 JP4608296B2 JP2004350042A JP2004350042A JP4608296B2 JP 4608296 B2 JP4608296 B2 JP 4608296B2 JP 2004350042 A JP2004350042 A JP 2004350042A JP 2004350042 A JP2004350042 A JP 2004350042A JP 4608296 B2 JP4608296 B2 JP 4608296B2
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- rubber
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- elastic body
- rolling surface
- rubber elastic
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本発明は、ゴムクロ−ラの構造に係るものであり、転輪の転動面に生じる内部発熱を発散するための構造に関するものである。 The present invention relates to a structure of a rubber track, and relates to a structure for radiating internal heat generated on a rolling surface of a wheel.
ゴムクロ−ラはスプロケット及びアイドラ−に巻き掛けされ、内周面に転輪が転動して走行する構造となっている。しかるに、転輪が転動するゴムクロ−ラ内周面に大きな歪みがもたらされるため、これを回避する方法として、ゴムクロ−ラの内周面の転輪の転動部位に肉厚の走行部を形成することが行われ、歪みを吸収することが行われている。 The rubber crawler is wound around a sprocket and an idler, and has a structure in which a wheel rolls on the inner peripheral surface. However, since a large distortion is caused on the inner peripheral surface of the rubber crawler on which the wheel rolls, as a method of avoiding this, a thick running portion is provided at the rolling portion of the roller on the inner peripheral surface of the rubber crawler. Forming is performed and strain is absorbed.
特にゴムクロ−ラには一般に芯金が一定ピッチにて配置されており、特に芯金間のゴム部が巻き掛け時の曲げ変形や走行面側からの突起物等に乗り上げることによって屈曲がもたらされるため、かかるゴム部に大きな発熱がもたらされる。その発熱温度は場合によっては１３０度にもなり、芯金とゴム間の接着劣化、ゴム部の熱老化が発生し、ゴムクロ−ラの寿命の低下がもたらされていた。 In particular, a rubber core generally has a metal core arranged at a constant pitch. Particularly, a rubber part between the metal cores is bent by being bent or deformed when it is wound, or a protrusion from the running surface. For this reason, a large amount of heat is generated in the rubber part. In some cases, the heat generation temperature was 130 ° C., the adhesion deterioration between the core metal and the rubber, the heat aging of the rubber part occurred, and the life of the rubber crawler was reduced.
かかる発熱に対してゴム中よりこれを発散させることが必要ではあるが、現状のゴムクロ−ラにあっては、発熱の発散に対して対策を施すことはされていなかった。 Although it is necessary to diverge the heat from the rubber, the current rubber crawler has not taken measures against the heat divergence.
本発明は以上の従来技術に鑑みてなされたものであって、ゴム中にもたらされる発熱を発散するゴムクロ−ラの構造を提供するものである。 The present invention has been made in view of the above prior art, and provides a rubber crawler structure that radiates heat generated in rubber.
本発明の要旨は、無端状ゴム弾性体の長手方向に向かって一定ピッチをもって埋設された芯金と、これを外囲いして同時に埋設されたスチールコードと、外周にゴムラグが形成され、スプロケットとアイドラーに巻き掛けされ、内周面を転輪が転動してなるゴムクローラであって、前記芯金には、無端状ゴム弾性体の内周側へ突出する一対の突起が設けられ、前記無端状ゴム弾性体には、前記一対の突起の無端状ゴム弾性体の幅方向外側に無端状ゴム弾性体の内周面から盛り上がり転輪が転動する転動面がそれぞれ形成され、前記転動面及び該転動面を形成する前記内周面から盛り上がった部分は、ゴムクローラの内周側平面視で芯金間に対応する部位の幅が芯金に対応する部位よりも狭いことを特徴とするものである。 The gist of the present invention is that a core metal embedded at a constant pitch in the longitudinal direction of the endless rubber elastic body, a steel cord that surrounds the core metal and is embedded at the same time, a rubber lug is formed on the outer periphery, and a sprocket A rubber crawler that is wound around an idler and rolls on its inner peripheral surface, and the cored bar is provided with a pair of protrusions that protrude toward the inner peripheral side of the endless rubber elastic body, The endless rubber elastic body is formed with a rolling surface on the outer side in the width direction of the endless rubber elastic body of the pair of protrusions, on which the rising roller rolls from the inner peripheral surface of the endless rubber elastic body. The portion raised from the inner peripheral surface forming the moving surface and the rolling surface is such that the width of the portion corresponding to the core metal is narrower than the portion corresponding to the core metal in a plan view on the inner peripheral side of the rubber crawler. It is a feature.
本発明にあって、ゴムの発熱が最も大きい転輪の転動面に改良を加え、熱の発散に優れた構造としたものであり、ゴムの老化が極めて低減されたものであり、ゴムの寿命が著しく向上したものである。 In the present invention, the rolling surface of the roller wheel with the largest heat generation of rubber is improved to have a structure excellent in heat dissipation, rubber aging is extremely reduced, The service life is significantly improved.
本発明は、転輪の転動面の工夫は転動面におけるゴムの発熱の状態を精査した結果からのものであり、ゴムの発熱の大きい部位とその他の部位を区分し、前者に対応する部位にのみ工夫を加えたものであり、発熱がしやすいようにこの部位だけ転動面を内周側平面視で芯金間のゴム部を狭くした構造としたものである。 The present invention is based on the result of examining the state of heat generation of the rubber on the rolling surface of the rolling surface of the wheel, and distinguishes the part where the heat generation of the rubber is large from the other part, corresponding to the former. Only the portion is devised, and the rolling surface of this portion is made narrower in the rubber portion between the cored bars in plan view on the inner peripheral side so as to easily generate heat.
具体的に言えば、内周側平面視で転動面の一側を直線とし、反対側にゴム部に対応する部位に凹みを形成したものであり、更には、転動面の両側に同様に凹みを形成したものである。 Specifically, one side of the rolling surface is a straight line in a plan view on the inner peripheral side, and a recess is formed on the opposite side corresponding to the rubber part, and furthermore, the same on both sides of the rolling surface. A dent is formed on the surface.
以下、図面をもって本発明を更に詳細に説明する。図１は本発明のゴムクロ−ラの内周側平面視であり、図２はＡ−Ａ線での断面図である。図中、符号１はゴムクロ−ラの基体となる無端状ゴム弾性体、２はこの無端状ゴム弾性体１に一定ピッチをもって埋設された芯金、２ａは芯金から伸びる突起、３は芯金２の翼部２ｂを外側より囲んで同時に無端状ゴム弾性体１に埋設したスチ−ルコ−ド、４はラグである。符号１０は図示しない機体に備えられている転輪であり、これがゴムクロ−ラ１の内周面上を転動するもので、５は前記突起２ａの左右の外側に形成した転動面である。
Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a plan view of an inner peripheral side of the rubber track of the present invention, and FIG. 2 is a cross-sectional view taken along line AA. In the figure, reference numeral 1 denotes an endless rubber elastic body serving as a base of the rubber crawler, 2 denotes a core metal embedded in the endless rubber elastic body 1 at a constant pitch, 2a denotes a protrusion extending from the core metal, and 3 denotes a core metal. A steel code 4 and a lug 4 are embedded in the endless rubber elastic body 1 so as to surround the two
さて、この例では、かかる転動面５が内周側平面視で突起２ａ側はストレ−トに伸び（５ａ）、左右の外側に窪み５ｂが形成されて転動面５に幅広の部位５ｐと幅狭の部位５ｑとを交互に形成したものである。特に幅狭５ｑは芯金２、２間の転動面に形成したものである。
In this example, when the
これによって、ゴムクロ−ラに発熱が起こった場合でも、その発熱の中心であるゴム部の転動面が狭いため熱の発散の程度は大きく、これによってゴムクロ−ラの寿命が延びることとなったものである。 As a result, even when heat is generated in the rubber crawler, the degree of heat dissipation is large because the rolling surface of the rubber part, which is the center of the heat generation, is narrow, thereby extending the life of the rubber crawler. Is.
図３は本発明のゴムクロ−ラの第２例を示す内周側平面視であり、符号１〜５、１０は前記と同様でありここでは説明を省略する。さて、この例では転動面５の左右幅側がストレ−トに伸び（５ａ）、中央側に窪み５ｂが形成されて、幅広の部位５ｐと幅狭の部位５ｑが形成されたものである。勿論、この窪み５ｂは前例と同じく芯金２、２間のゴム部に形成されるものである。
FIG. 3 is a plan view of the inner peripheral side of a second example of the rubber track according to the present invention. In this example, the left and right width sides of the
図４は本発明のゴムクロ−ラの第３例を示す内周側平面視であり、符号１〜５、１０は前記と同様であり説明を省略する。さて、この例では転動面５の左右幅側及び中央側に夫々窪み５ｂが形成されて、幅広の部位５ｐと幅狭の部位５ｑが形成されたものである。勿論、この窪み５ｂは芯金２、２間のゴム部に形成されるものである。
FIG. 4 is a plan view of the inner peripheral side of a third example of the rubber track according to the present invention. In this example,
尚、図示はしないが、幅狭の部位５ｑの背丈をやや高くしておるとその分振動の低減がもたらされる。
Although not shown in the figure, if the height of the
本発明は、転輪の転動によるゴムクロ−ラのゴム部の発熱に対処して転動面を工夫したものであり、発熱によるゴムの劣化も少なくゴムクロ−ラの耐久性の向上を見たものである。 The present invention devised the rolling surface to cope with the heat generation of the rubber part of the rubber crawler due to the rolling of the wheel, and the durability of the rubber crawler was improved with little deterioration of the rubber due to the heat generation. Is.
尚、ゴムクロ−ラの転輪の転動面は内周側にある厚さをもって帯状に設けられるが、この部位のゴム厚は他の部位とはかなり異なる。従って、ゴムクロ−ラの加硫成形時に加硫時間が余計に掛ることになるが、本発明における窪み部の形成は加硫時間の短縮ができるという面での特徴も兼ね備えている。 Incidentally, the rolling surface of the roller of the rubber crawler is provided in a strip shape with a thickness on the inner peripheral side, but the rubber thickness of this part is considerably different from other parts. Therefore, the vulcanization time is excessive when vulcanization molding of the rubber crawler, but the formation of the recess in the present invention also has a feature in that the vulcanization time can be shortened.
１‥無端状ゴム弾性体、
２‥芯金、
２ａ‥突起、
２ｂ‥翼部、
３‥スチ−ルコ−ド、
４‥ラグ、
５‥転輪の転動面、
５ａ‥転動面のストレ−ト部、
５ｂ‥転動面の窪み部、
５ｐ‥転動面の幅広部、
５ｑ‥転動面の幅狭部、
１０‥転輪。
1. Endless rubber elastic body,
2. Core metal,
2a ... projection,
2b ... Wings,
3. Steel code,
4 ... Rug,
5. Rolling surface of the wheel
5a... Straight portion of the rolling surface,
5b .. depression of rolling surface,
5p ... the wide part of the rolling surface,
5q: The narrow part of the rolling surface,
10. Rolling wheel.
Claims (1)
前記芯金には、無端状ゴム弾性体の内周側へ突出する一対の突起が設けられ、
前記無端状ゴム弾性体には、前記一対の突起の無端状ゴム弾性体の幅方向外側に無端状ゴム弾性体の内周面から盛り上がり転輪が転動する転動面がそれぞれ形成され、
前記転動面及び該転動面を形成する前記内周面から盛り上がった部分は、ゴムクローラの内周側平面視で芯金間に対応する部位の幅が芯金に対応する部位よりも狭いことを特徴とするゴムクローラ。 A cored bar embedded at a constant pitch in the longitudinal direction of the endless rubber elastic body, a steel cord that surrounds the cored bar and embedded at the same time, a rubber lug is formed on the outer periphery, wound around a sprocket and an idler, A rubber crawler formed by rolling wheels on the inner peripheral surface,
The cored bar is provided with a pair of protrusions protruding toward the inner peripheral side of the endless rubber elastic body,
In the endless rubber elastic body, a rolling surface on which the rising roller rolls from the inner peripheral surface of the endless rubber elastic body is formed on the outer side in the width direction of the endless rubber elastic body of the pair of protrusions ,
The portion of the rolling surface and the portion that bulges from the inner peripheral surface that forms the rolling surface is narrower in width than the portion corresponding to the cored bar when viewed from the inner peripheral side of the rubber crawler. Rubber crawler characterized by that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004350042A JP4608296B2 (en) | 2004-12-02 | 2004-12-02 | Rubber crawler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004350042A JP4608296B2 (en) | 2004-12-02 | 2004-12-02 | Rubber crawler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006159943A JP2006159943A (en) | 2006-06-22 |
| JP4608296B2 true JP4608296B2 (en) | 2011-01-12 |
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ID=36662439
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004350042A Expired - Fee Related JP4608296B2 (en) | 2004-12-02 | 2004-12-02 | Rubber crawler |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5566866B2 (en) * | 2010-11-25 | 2014-08-06 | 株式会社ブリヂストン | Elastic crawler |
| JP2021014132A (en) * | 2017-11-15 | 2021-02-12 | 株式会社ブリヂストン | Rubber crawler |
| JP7060871B2 (en) * | 2018-04-05 | 2022-04-27 | 福山ゴム工業株式会社 | Crawler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52122432U (en) * | 1976-03-13 | 1977-09-17 | ||
| JPS5699863A (en) * | 1980-01-11 | 1981-08-11 | Bridgestone Corp | Derailment-protective and vibration-insulating endless track belt |
| JP2004098793A (en) * | 2002-09-06 | 2004-04-02 | Sumitomo Rubber Ind Ltd | Elastic crawler |
-
2004
- 2004-12-02 JP JP2004350042A patent/JP4608296B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52122432U (en) * | 1976-03-13 | 1977-09-17 | ||
| JPS5699863A (en) * | 1980-01-11 | 1981-08-11 | Bridgestone Corp | Derailment-protective and vibration-insulating endless track belt |
| JP2004098793A (en) * | 2002-09-06 | 2004-04-02 | Sumitomo Rubber Ind Ltd | Elastic crawler |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006159943A (en) | 2006-06-22 |
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