JPH09207840A - Projection drive type rubber crawler - Google Patents
Projection drive type rubber crawlerInfo
- Publication number
- JPH09207840A JPH09207840A JP4041296A JP4041296A JPH09207840A JP H09207840 A JPH09207840 A JP H09207840A JP 4041296 A JP4041296 A JP 4041296A JP 4041296 A JP4041296 A JP 4041296A JP H09207840 A JPH09207840 A JP H09207840A
- Authority
- JP
- Japan
- Prior art keywords
- rubber crawler
- projection
- elastic body
- rubber
- base
- 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.)
- Granted
Links
- 230000002093 peripheral Effects 0.000 claims abstract description 20
- 238000005096 rolling process Methods 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000001965 increased Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は突起駆動型ゴムクロ
−ラに関するものであり、更に詳しくは、脱輪防止機能
を付加した突起駆動型ゴムクロ−ラに係るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protrusion-driving rubber crawler, and more particularly to a protrusion-driving rubber crawler having a wheel removal preventing function.
【０００２】[0002]
【従来の技術】従来より、ゴムクロ−ラの内周面に一定
ピッチをもって突起を形成し、この突起をスプロケット
と係合してなる突起駆動型ゴムクロ−ラは存在する。図
１０はこのゴムクロ−ラの側面図であり、図１１はその
幅方向の断面図である。図中、符号１１はゴムクロ−
ラ、１２はこのゴムクロ−ラの基体となる無端状ゴム弾
性体、１３はその長手方向に埋設された抗張体としての
スチ−ルコ−ド、１４は無端状ゴム弾性体１の内周面の
中央に一定ピッチをもって形成した突起、１５はこの外
周面に形成したゴムラグである。2. Description of the Related Art Conventionally, there has been a protrusion driving type rubber crawler in which protrusions are formed at a constant pitch on the inner peripheral surface of a rubber crawler and the protrusions are engaged with a sprocket. FIG. 10 is a side view of this rubber crawler, and FIG. 11 is a sectional view in the width direction thereof. In the figure, reference numeral 11 is a rubber cross.
La, 12 is an endless rubber elastic body that is a base of the rubber crawler, 13 is a steel cord as a tensile body embedded in the longitudinal direction, and 14 is an inner peripheral surface of the endless rubber elastic body 1. The protrusions 15 are formed at a constant pitch in the center, and 15 is a rubber lug formed on the outer peripheral surface.
【０００３】しかるに、このゴムクロ−ラ１１に外力が
加わった場合、ゴムクロ−ラ１１に逆曲げ、横ずれ、捩
れ等が発生し、機体に備え付けられた転輪やスプロケッ
ト（図示せず）と突起１４との係合関係が脱れ、転輪等
がこの突起１４上に乗り上げてしまい、その結果脱輪の
発生を見ることがしばしばであった。However, when an external force is applied to the rubber crawler 11, the rubber crawler 11 is reversely bent, laterally displaced, twisted, etc., and the wheels 14 and sprockets (not shown) and projections 14 provided on the machine body. It often happened that the wheel and the like got on the projection 14 as a result of the disengagement from the wheel and the occurrence of wheel loss.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、転輪等とゴ
ムクロ−ラとの間の脱転の発生を防止することを目的と
するものであり、特に突起と突起との間にあっても転輪
等の横ずれを防止し、しかもゴムクロ−ラがスプロケッ
トやアイドラ−に巻き掛けする際の屈曲抵抗を低減した
ゴムクロ−ラを提供するものである。SUMMARY OF THE INVENTION It is an object of the present invention to prevent the occurrence of slippage between a roller and the like and a rubber crawler, and in particular, even if it is located between protrusions, (EN) Provided is a rubber crawler which prevents lateral displacement of a wheel or the like and which has a reduced bending resistance when the rubber crawler is wound around a sprocket or an idler.
【０００５】[0005]
【課題を解決するための手段】本発明は以上のような目
的を達成するためになされたものであって、その発明の
要旨は、無端状ゴム弾性体と、その内周面に無端状ゴム
弾性体の長手方向に連続する台部と、この台部上に一定
ピッチをもって設けた突起と、この突起間における台部
に無端状ゴム弾性体の幅方向に向って形成した溝部と、
からなることを特徴とする突起駆動型ゴムクロ−ラに係
るものであり、この溝部は突起の基底部に形成したもの
であり、無端状ゴム弾性体の長手方向に、台部の幅以上
の幅をもって抗張体を埋設することによってゴムクロ−
ラの巻き掛け時の屈曲抵抗の低減とゴムクロ−ラへの剛
性の付与をもたらしたものである。The present invention has been made to achieve the above objects, and the gist of the present invention is to provide an endless rubber elastic body and an endless rubber on the inner peripheral surface thereof. A base portion continuous in the longitudinal direction of the elastic body, projections provided on the base portion at a constant pitch, and a groove portion formed on the base portion between the projections in the width direction of the endless rubber elastic body,
The present invention relates to a protrusion driving type rubber crawler, characterized in that the groove is formed at the base of the protrusion, and the width of the endless rubber elastic body is equal to or larger than the width of the base. By embedding the tensile body with
This results in a reduction in bending resistance when the rubber is wrapped around and a rigidity imparted to the rubber crawler.
【０００６】[0006]
【発明の実施の形態】本発明は上記の構造にあって、転
輪（含スプロケット、アイドラ−）は突起と係合するの
みならずこれを跨いで台部とも係合することとなる。特
に台部との係合は連続するものであって、これにより転
輪の横ずれを阻止し、脱輪の発生を極めて低減すること
ができることとなった。尚、スプロケットは突起と係合
して駆動力を伝達すると共に台部の左右のゴムクロ−ラ
の内周面に接して回転することとなっており、この点で
脱輪防止機能をもたらすと共に、スプロケットとゴムク
ロ−ラ内周面との間の摩擦駆動型ゴムクロ−ラであると
も言える。BEST MODE FOR CARRYING OUT THE INVENTION The present invention has the above-described structure, in which the rolling wheels (including sprockets, idlers) not only engage with the protrusions but also engage with the base portion across the protrusions. In particular, the engagement with the base portion is continuous, which prevents the lateral displacement of the rolling wheels and significantly reduces the occurrence of wheel loss. The sprocket engages with the projection to transmit the driving force, and rotates in contact with the inner peripheral surfaces of the left and right rubber crawlers of the base portion. It can be said that it is a friction drive type rubber crawler between the sprocket and the inner peripheral surface of the rubber crawler.
【０００７】本発明において、ゴムクロ−ラの内周面に
連続する台部の存在は巻き掛けの際の屈曲抵抗を増加す
ることとなるが、この対策として突起と突起の間におけ
る台部にゴムクロ−ラの幅方向に向けて溝部を形成し、
台部を形成するゴムの圧縮歪をこの溝部によって逃がす
ことによって屈曲抵抗を低減するものである。この溝部
は好ましくは突起の基底部に備えられるのがよい。In the present invention, the presence of the base portion continuous to the inner peripheral surface of the rubber crawler increases the bending resistance during winding, but as a countermeasure against this, the rubber cradle on the base portion between the protrusions. − Form a groove portion in the width direction of the la,
The flexural resistance is reduced by allowing the groove to release the compressive strain of the rubber forming the base. This groove is preferably provided at the base of the protrusion.
【０００８】更に、スチ−ルコ−ドにて代表される抗張
体は台部の幅よりも幅の広い範囲に埋設されているもの
であり、ゴム弾性体中の幅の広い範囲内で埋設されるこ
とによってゴムクロ−ラの捩れに対して剛性アップをも
たらすことになり、捩じれによる脱輪の発生を規制する
ことができることとなる。Further, the tensile body represented by a steel cord is embedded in a range wider than the width of the base portion, and is embedded within a wide range in the rubber elastic body. As a result, the rigidity of the rubber crawler is increased with respect to the twist of the rubber crawler, and the occurrence of wheel slippage due to the twist can be restricted.
【０００９】[0009]
【実施例】以下、本発明のゴムクロ−ラを図面をもって
更に詳細に説明する。図１は本発明のゴムクロ−ラの内
周側平面図、図２は外周側平面図、図３はその側面図で
ある。そして図４は図１のＡ−Ａ線での断面図であり、
図５はＢ−Ｂ線での断面図である。図中、符号１はゴム
クロ−ラ、２はゴムクロ−ラの基体となるゴム弾性体、
３はその内周面の中央で長手方向に連続的に形成された
台部であり、４はその台部３上に一定ピッチをもって形
成された突起である。又、５はゴム弾性体の外周面に幅
方向にＺ字状に形成したゴムラグである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The rubber crawler of 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 crawler of the present invention, FIG. 2 is a plan view of an outer peripheral side, and FIG. 3 is a side view thereof. 4 is a sectional view taken along the line AA of FIG.
FIG. 5 is a sectional view taken along line BB. In the figure, reference numeral 1 is a rubber crawler, 2 is a rubber elastic body which is a base of the rubber crawler,
Reference numeral 3 denotes a base portion formed continuously in the longitudinal direction at the center of the inner peripheral surface thereof, and reference numeral 4 denotes a protrusion formed on the base portion 3 at a constant pitch. Further, 5 is a rubber lug formed in a Z-shape in the width direction on the outer peripheral surface of the rubber elastic body.
【００１０】図例にあっては台部３上の突起４の基底部
に溝部６を形成したものである。そして７はスプロケッ
トを示すものであり、突起４と係合してゴムクロ−ラ１
に駆動力を伝達すると共に、そのスプロケット７の両端
７0 が台部３を跨いでゴム弾性体２の内周面に接触する
ものである。図示しない転輪も同様である。そして抗張
体としてのスチ−ルコ−ド８は、ゴム弾性体２の長手方
向に沿って埋設され、その埋設の幅Ｗ0 は台部３の幅Ｗ
1 より大きくするものであり、この幅Ｗ0 を大きくすれ
ば、それだけゴムクロ−ラ１の捩れ等を阻止する力とな
る。In the illustrated example, the groove 6 is formed in the base of the projection 4 on the base 3. Reference numeral 7 denotes a sprocket, which is engaged with the protrusion 4 to engage the rubber crawler 1
While transmitting a driving force to, but in contact with the inner peripheral surface of the rubber elastic body 2 across the ends 7 0 trapezoidal portion 3 of the sprocket 7. The same applies to rolling wheels (not shown). The steel cord 8 as a tensile body is embedded along the longitudinal direction of the rubber elastic body 2, and the width W 0 of the embedding is the width W of the base 3.
The width W 0 is made larger than 1 , and the larger the width W 0 becomes, the more the force prevents the rubber crawler 1 from twisting.
【００１１】転輪、アイドラ、スプロケットとゴムクロ
−ラ１との脱輪の発生にあって、本発明においては、従
来の構造によるゴムクロ−ラの突起との係合だけでな
く、連続する台部３との係合も行われるため、特に突起
４のない部位でも脱輪防止機能をもたらすものである。In the present invention, when the wheel, idler, sprocket and the rubber crawler are released from the wheel, the present invention not only engages the protrusion of the rubber crawler according to the conventional structure, but also the continuous base portion. Since the engagement with 3 is also performed, the function of preventing wheel slippage is provided even in a region where the protrusion 4 is not present.
【００１２】そしてこの台部３の存在はゴムクロ−ラ１
がアイドラ−やスプロケットに巻き掛けされる際に生じ
る屈曲抵抗を大きくするが、この対策として台部３に溝
部６を形成することによって屈曲抵抗を低減させたもの
である。即ち、溝部６は台部３の圧縮歪の吸収緩和に役
立つこととなる。The presence of the base 3 is due to the rubber crawler 1
Although the bending resistance generated when the is wound around the idler or the sprocket is increased, the bending resistance is reduced by forming the groove portion 6 in the base portion 3 as a countermeasure. That is, the groove 6 serves to absorb and relax the compression strain of the base 3.
【００１３】図６〜図９は本発明のゴムクロ−ラ１の溝
部５の配置例を示すものであり、図６は突起４の左右の
基底部に溝部６、６及び突起４、４間に溝部６0 を形成
したものである。この図例における溝部６、６0 はいず
れも略同一断面形状をもつものである。6 to 9 show an example of the arrangement of the groove portions 5 of the rubber crawler 1 of the present invention. FIG. 6 shows the groove portions 6 and 6 and the protrusions 4 and 4 at the left and right base portions of the protrusion 4. it is obtained by forming the groove 6 0. Grooves 6,6 0 in this illustrated example are those having substantially the same cross-sectional shape either.
【００１４】図７にあっては、突起４の左右の基底部に
おける溝部６、６は突起４、４間における溝部６0 の断
面形状より小さくしたものであり、図８はこの逆の形状
をもつ溝部６、６、６0 の例である。図９は突起４、４
間にのみ溝部６0 を形成した例である。このように、本
発明において台部３に形成する溝部の形状は、ゴムクロ
−ラの大きさや巻き掛け半径、更には突起の間隔やゴム
クロ−ラの使用状況によって任意に選択されるものであ
る。これら溝部６、６0 はいずれも台部３にのみ形成さ
れたもので、ゴム弾性体２の内周面に達しないのが好ま
しい。[0014] In the FIG. 7, the grooves 6,6 in the basal portions of the right and left projection 4 is obtained by less than the cross-sectional shape of the groove portion 6 0 between protrusions 4, 4, 8 reverse this shape This is an example of the groove portions 6, 6 , and 60. FIG. 9 shows the protrusions 4 and 4.
It is an example of forming a groove portion 6 0 only between. As described above, in the present invention, the shape of the groove portion formed in the base portion 3 is arbitrarily selected depending on the size of the rubber crawlers, the winding radius, the distance between the protrusions, and the usage conditions of the rubber crawlers. These grooves 6,6 0 has been formed only on the even base unit 3 either, preferably not reach the inner peripheral surface of the rubber elastic body 2.
【００１５】[0015]
【発明の効果】本発明は、ゴムクロ−ラの長手方向に連
続する台部により転輪の乗り上げを防止し、更に、抗張
体を幅広にゴムクロ−ラ中に埋設することによりゴムク
ロ−ラの剛性を確保したもので、これらによって耐脱輪
性を高めたものである。そして、連続した台部を含め抗
張体よりも内周側はゴムクロ−ラの巻き掛け時には大き
な屈曲抵抗となるため、台部に一定間隔毎に溝部を設け
屈曲抵抗を緩和したものである。According to the present invention, the base portion which is continuous in the longitudinal direction of the rubber crawler prevents the riding of the rolling wheels, and further, the tensile body is widely embedded in the rubber crawler so that It ensures rigidity, and enhances derailing resistance. Further, since the inner circumference side including the continuous base portion has a large bending resistance when the rubber crawler is wound around, the groove portions are provided in the base portion at regular intervals to alleviate the bending resistance.
【００１６】以上のように、ゴムクロ−ラ自体の剛性を
確保しつつ、内周側の連続する台部により転輪の乗り上
げを防止し、更に屈曲抵抗を高めることなく耐脱輪性の
優れた芯金レスゴムクロ−ラを得ることができた。As described above, while ensuring the rigidity of the rubber crawler itself, the continuous base portion on the inner peripheral side prevents the rolling wheels from riding up, and the excavation resistance is excellent without further increasing the bending resistance. A coreless rubber crawler could be obtained.
【図１】図１は本発明のゴムクロ−ラの内周側平面図で
ある。FIG. 1 is a plan view of an inner peripheral side of a rubber crawler of the present invention.
【図２】図２は図１に示すゴムクロ−ラの外周側平面図
である。FIG. 2 is a plan view of an outer peripheral side of the rubber crawler shown in FIG.
【図３】図３は図１に示すゴムクロ−ラの側面図であ
る。FIG. 3 is a side view of the rubber crawler shown in FIG.
【図４】図４は図１のＡ−Ａ線での断面図である。4 is a cross-sectional view taken along the line AA of FIG.
【図５】図５は図１のＢ−Ｂ線での断面図である。5 is a cross-sectional view taken along the line BB of FIG.
【図６】図６はゴムクロ−ラの第２例における溝部の配
置を示す側面図である。FIG. 6 is a side view showing an arrangement of groove portions in a second example of the rubber crawler.
【図７】図７はゴムクロ−ラの第３例における溝部の配
置を示す側面図である。FIG. 7 is a side view showing an arrangement of groove portions in a third example of the rubber crawler.
【図８】図８はゴムクロ−ラの第４例における溝部の配
置を示す側面図である。FIG. 8 is a side view showing an arrangement of groove portions in a fourth example of the rubber crawler.
【図９】図９はゴムクロ−ラの第５例における溝部の配
置を示す側面図である。FIG. 9 is a side view showing an arrangement of groove portions in a fifth example of the rubber crawler.
【図１０】図１０は従来のゴムクロ−ラの側面図であ
る。FIG. 10 is a side view of a conventional rubber crawler.
【図１１】図１１は図１０のゴムクロ−ラの幅方向の断
面図である。11 is a cross-sectional view of the rubber crawler of FIG. 10 in the width direction.
１‥‥ゴムクロ−ラ、 ２‥‥ゴムクロ−ラの基体となるゴム弾性体、 ３‥‥内周面の中央で長手方向に連続的に形成された台
部、 ４‥‥台部上に一定ピッチをもって形成された突起、 ５‥‥ゴム弾性体の外周面に形成したゴムラグ、 ６、６0 ‥‥台部に形成した溝部、 ７‥‥スプロケット、 ８‥‥抗張体（スチ−ルコ−ド）、 Ｗ0 ‥‥抗張体（スチ−ルコ−ド）の埋設の幅、 Ｗ1 ‥‥台部の幅。1 ... Rubber crawler, 2 ... Rubber elastic body that is the base of the rubber crawler, 3 ... Stand that is continuously formed in the longitudinal direction at the center of the inner peripheral surface, 4 ... Constant on the stand projections formed with a pitch, 5 ‥‥ Gomuragu formed on the outer peripheral surface of the rubber elastic body, the groove formed in the 6,6 0 ‥‥ base unit, 7 ‥‥ sprocket, 8 ‥‥ tensile body (steel - Turkey - ), W 0 ... the width of the embedded tensile body (steel cord), W 1 ... the width of the base.
Claims (3)
状ゴム弾性体の長手方向に連続する台部と、この台部上
に一定ピッチをもって設けた突起と、この突起間におけ
る台部に無端状ゴム弾性体の幅方向に向って形成した溝
部と、からなることを特徴とする突起駆動型ゴムクロ−
ラ。1. An endless rubber elastic body, a base portion which is continuous on the inner peripheral surface in the longitudinal direction of the endless rubber elastic body, projections provided on the base portion at a constant pitch, and a base between the projections. And a groove portion formed in the widthwise direction of the endless rubber elastic body.
La.
１項記載の突起駆動型ゴムクロ−ラ。2. The projection driven rubber crawler according to claim 1, wherein a groove is formed at the base of the projection.
幅以上の幅をもって抗張体を埋設した請求項第１項記載
の突起駆動型ゴムクロ−ラ。3. The projection driven rubber crawler according to claim 1, wherein a tensile body is embedded in a lengthwise direction of the endless rubber elastic body with a width equal to or larger than the width of the base portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04041296A JP3745007B2 (en) | 1996-02-03 | 1996-02-03 | Protrusion-driven rubber crawler device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04041296A JP3745007B2 (en) | 1996-02-03 | 1996-02-03 | Protrusion-driven rubber crawler device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09207840A true JPH09207840A (en) | 1997-08-12 |
| JP3745007B2 JP3745007B2 (en) | 2006-02-15 |
Family
ID=12579958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04041296A Expired - Fee Related JP3745007B2 (en) | 1996-02-03 | 1996-02-03 | Protrusion-driven rubber crawler device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3745007B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002211455A (en) * | 2001-01-19 | 2002-07-31 | Ohtsu Tire & Rubber Co Ltd :The | Elastic crawler |
| JP2006248470A (en) * | 2005-03-14 | 2006-09-21 | Sumitomo Rubber Ind Ltd | Elastic crawler |
| JP2009184458A (en) * | 2008-02-05 | 2009-08-20 | Bridgestone Corp | Rubber crawler |
| JP2013107472A (en) * | 2011-11-18 | 2013-06-06 | Bridgestone Corp | Elastic crawler |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101605690B (en) | 2007-02-05 | 2013-04-17 | 株式会社普利司通 | Rubber crawler track |
-
1996
- 1996-02-03 JP JP04041296A patent/JP3745007B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002211455A (en) * | 2001-01-19 | 2002-07-31 | Ohtsu Tire & Rubber Co Ltd :The | Elastic crawler |
| JP2006248470A (en) * | 2005-03-14 | 2006-09-21 | Sumitomo Rubber Ind Ltd | Elastic crawler |
| JP2009184458A (en) * | 2008-02-05 | 2009-08-20 | Bridgestone Corp | Rubber crawler |
| JP2013107472A (en) * | 2011-11-18 | 2013-06-06 | Bridgestone Corp | Elastic crawler |
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| Publication number | Publication date |
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| JP3745007B2 (en) | 2006-02-15 |
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