JP2006159943A - Rubber crawler - Google Patents
Rubber crawler Download PDFInfo
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- JP2006159943A JP2006159943A JP2004350042A JP2004350042A JP2006159943A JP 2006159943 A JP2006159943 A JP 2006159943A JP 2004350042 A JP2004350042 A JP 2004350042A JP 2004350042 A JP2004350042 A JP 2004350042A JP 2006159943 A JP2006159943 A JP 2006159943A
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- rubber
- rolling surface
- inner peripheral
- rubber crawler
- rolling
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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 part of the inner wheel 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, the core is generally arranged at a constant pitch in the rubber crawler. In particular, the rubber part between the cores is bent by being bent or deformed when it is wound on 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−ルコ−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−に巻き掛けされ、内周面を転輪が転動してなるゴムクロ−ラであって、転輪の転動面がゴムクロ−ラの内周面より内側に形成され、かつ転動面が内周側平面視で芯金に対応する部位で広く、芯金間のゴム部で狭い転動面である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, and a rubber lug is formed on the outer periphery. A rubber crawler that is wound around a sprocket and an idler and has a roller rolling on its inner peripheral surface, the rolling surface of the wheel being formed on the inner side of the inner peripheral surface of the rubber crawler, and The rolling surface is wide at a portion corresponding to the core metal in a plan view on the inner peripheral side, and is a narrow rolling surface at a rubber portion between the core metals.
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 a rubber track according to 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 of the present invention. Reference numerals 1 to 5 and 10 are the same as described above, and the description thereof is omitted here. 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 of the present invention. Reference numerals 1 to 5 and 10 are the same as those described above, and a description thereof will be omitted. 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)
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JP2004350042A JP4608296B2 (en) | 2004-12-02 | 2004-12-02 | Rubber crawler |
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JP2004350042A JP4608296B2 (en) | 2004-12-02 | 2004-12-02 | Rubber crawler |
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JP2006159943A true JP2006159943A (en) | 2006-06-22 |
JP4608296B2 JP4608296B2 (en) | 2011-01-12 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012111368A (en) * | 2010-11-25 | 2012-06-14 | Bridgestone Corp | Elastic crawler |
WO2019097923A1 (en) * | 2017-11-15 | 2019-05-23 | 株式会社ブリヂストン | Rubber crawler-track pad |
JP2019182099A (en) * | 2018-04-05 | 2019-10-24 | 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 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012111368A (en) * | 2010-11-25 | 2012-06-14 | Bridgestone Corp | Elastic crawler |
WO2019097923A1 (en) * | 2017-11-15 | 2019-05-23 | 株式会社ブリヂストン | Rubber crawler-track pad |
JP2019182099A (en) * | 2018-04-05 | 2019-10-24 | 福山ゴム工業株式会社 | Crawler |
JP7060871B2 (en) | 2018-04-05 | 2022-04-27 | 福山ゴム工業株式会社 | Crawler |
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JP4608296B2 (en) | 2011-01-12 |
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