JP2010018091A - Rubber crawler - Google Patents
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- JP2010018091A JP2010018091A JP2008178930A JP2008178930A JP2010018091A JP 2010018091 A JP2010018091 A JP 2010018091A JP 2008178930 A JP2008178930 A JP 2008178930A JP 2008178930 A JP2008178930 A JP 2008178930A JP 2010018091 A JP2010018091 A JP 2010018091A
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Abstract
Description
本発明は、コンバイン、クローラ式トラクタおよびバックホー等の走行装置に装着されるゴムクローラに関する。 The present invention relates to a rubber crawler mounted on a traveling device such as a combine, a crawler tractor, and a backhoe.
コンバインおよびクローラ式トラクタ等の自走式農機は、高さが高いラグを備えたゴムクローラを装着して、湿田の走破性の向上を図ることがなされている。
そして湿田の走破性がある程度向上した現在は、乗り心地の向上に関心が移りつつあり、自走式農機の高速化に付随して発生する高速域での振動の低減が問題となっている。
これまでも、自走式農機等のクローラ式走行車両の走行時の振動を低減するために、装着されるゴムクローラの改良が試みられてきた（特許文献１）。
Now that the wetland has improved to some extent, the interest has been shifting to improving the ride comfort, and the reduction of vibrations in the high-speed range that accompanies the increase in the speed of self-propelled agricultural machines has become a problem.
Until now, in order to reduce the vibration at the time of driving | running | working of crawler type traveling vehicles, such as a self-propelled agricultural machine, improvement of the rubber crawler with which it was mounted has been tried (patent document 1).
特許文献１に記載された改良されたゴムクローラは、案内突起が形成されクローラ周方向に略等間隔で配された芯金の間における転輪が転動する部分に、他の部分に対して***した***部を設けることにより、芯金の上を転輪が通過した後に芯金間を転輪が通過するときの転輪の落ち込みを減少させてクローラ式走行車両の走行時の振動を低減させるものである。
クローラ式走行車両の走行速度が高速ではない場合、特許文献１に記載されたゴムクローラは、振動の低減に一定の効果が期待される。しかし、特許文献１に記載されたゴムクローラは、ラグの高さを高くした場合または高速で走行する場合に、転輪が***部の頂点を通過した後に転輪が惰性でとび跳ねる現象が発生して振動減少の効果が低下することが懸念される。また、ラグ高さを高めたゴムクローラでは、走行時にラグの倒れ込みが大きくなる傾向があり、高速走行によりラグの倒れ込みが助長されると、クローラ本体の芯金の間が変形して***部が意図した機能を十分に発揮しないおそれがある。
The improved rubber crawler described in Patent Document 1 has a guide projection formed on a portion where a roller wheel rolls between core bars arranged at substantially equal intervals in the crawler circumferential direction, with respect to other portions. By providing a raised bulge, the rolling of the crawler type traveling vehicle is reduced by reducing the drop of the rolling wheel when the rolling wheel passes between the cores after the rolling wheel passes over the core. It is something to be made.
When the traveling speed of the crawler type traveling vehicle is not high, the rubber crawler described in Patent Document 1 is expected to have a certain effect in reducing vibration. However, in the rubber crawler described in Patent Document 1, when the height of the lug is increased or when traveling at a high speed, a phenomenon occurs in which the rolling wheel jumps due to inertia after the rolling wheel passes the top of the raised portion. Therefore, there is a concern that the effect of vibration reduction is reduced. Also, with rubber crawlers with increased lug height, the lag collapse tends to increase during traveling, and when the lag collapse is facilitated by high speed traveling, the crawler body core metal deforms and the raised portion becomes The intended function may not be performed sufficiently.
本発明は、上述の問題に鑑みてなされたもので、低速走行時だけではなく高速で走行させたときのクローラ式走行車両の振動を軽減させ、かつ湿地の走破性が良好なゴムクローラを提供することを目的とする。 The present invention has been made in view of the above-described problems, and provides a rubber crawler that reduces vibration of a crawler-type traveling vehicle when traveling at a high speed as well as during low-speed traveling and has good wetland running characteristics. The purpose is to do.
前記目的を達成するため、本発明においては以下の技術的手段を講じた。
すなわち、本発明に係るゴムクローラは、ゴムにより無端帯状に形成されたクローラ本体と、前記クローラ本体の周方向に間隔を有して前記クローラ本体に埋め込まれた複数の芯金と、前記クローラ本体の外周側の表面から突出し相互に前記周方向に間隔を有する複数のラグと、で形成され、前記クローラ本体はその内周側表面に前記周方向に延びる１対の転輪走行帯を備え、前記ラグは、少なくとも前記クローラ本体の幅方向において前記芯金に重なる部分ではその接地する端面が前記周方向において前記芯金に重なっており、隣り合う前記芯金の間における前記転輪走行帯が、隣り合う前記芯金の一方から中央に向かうにつれて***の程度が増加する第１***部における凹状の曲面または一定割合で***の程度が増加する第１***部における平面と、前記第１***部および隣り合う前記芯金の他方の間に配され前記第１の***部と同じ***の程度から前記芯金の他方に向かうにつれて***の程度が減少する第２***部における凸状の曲面と、で形成されてなる。
In order to achieve the above object, the present invention takes the following technical means.
That is, the rubber crawler according to the present invention includes a crawler main body formed in an endless belt shape with rubber, a plurality of core bars embedded in the crawler main body at intervals in the circumferential direction of the crawler main body, and the crawler main body A plurality of lugs protruding from the outer peripheral surface of the outer peripheral surface and spaced apart from each other in the circumferential direction, and the crawler body includes a pair of wheel running zones extending in the circumferential direction on the inner peripheral surface thereof, The lug has a grounding end surface that overlaps the core metal in the circumferential direction at least in a portion overlapping the core metal in the width direction of the crawler body, and the wheel running zone between the adjacent core bars is A concave curved surface in the first bulging portion where the degree of the bulging increases from one of the adjacent core bars toward the center, or the first bulging portion where the degree of the bulging increases at a certain rate. A second surface that is arranged between the flat surface and the other one of the first raised portion and the adjacent cored bar, and the degree of the raised portion decreases from the same raised degree as the first raised portion toward the other of the cored bar. And a convex curved surface in the raised portion.
前記転輪走行帯が、前記第１***部と前記第２***部との間における***の程度が変化しない平坦部の表面を備えていてもよい。
好ましくは、前記第１***部の***が、前記芯金の前記一方に重なる前記ラグの前記周方向において前記転輪走行帯に重なる前記接地する端面における前記芯金の前記他方側に位置する端縁と、前記芯金の前記一方における前記芯金の前記他方側に位置する側面との間を始点とする。
The wheel raceway belt may include a flat surface that does not change the degree of bulge between the first bulge and the second bulge.
Preferably, the bulge of the first bulge portion is located on the other side of the cored bar on the end surface to be grounded that overlaps the wheel running zone in the circumferential direction of the lug that overlaps the one of the cored bar. The starting point is between the edge and the side surface of the one of the cored bars located on the other side of the cored bar.
本発明によると、低速走行時だけではなく高速で走行させたときのクローラ式走行車両の振動を軽減させ、かつ湿地の走破性が良好なゴムクローラを提供することができる。 According to the present invention, it is possible to provide a rubber crawler that can reduce vibration of a crawler-type traveling vehicle when traveling at a high speed as well as during low-speed traveling and has good wetland running characteristics.
図１はゴムクローラ１の周方向を断面とする部分断面図、図２はゴムクローラ１を内周側から見た図、図３は図２におけるＢ−Ｂ矢視断面図である。なお、図１は図２におけるＡ−Ａ矢視断面を示す。
以下の説明において、クローラ式走行車両に装着されたときにおけるゴムクローラ１の内側を「内周側」といい、走行面側となる外側を「外周側」という。また、クローラ式走行車両が走行するときにゴムクローラ１が循環する方向を「周方向」、このときの周方向に直交しかつクローラ式走行車両の転輪３１等の回転軸に平行な方向を「幅方向」というものとする。
1 is a partial cross-sectional view in which the circumferential direction of the rubber crawler 1 is taken as a cross section, FIG. 2 is a view of the rubber crawler 1 viewed from the inner peripheral side, and FIG. 3 is a cross-sectional view taken along the line BB in FIG. In addition, FIG. 1 shows the AA arrow cross section in FIG.
In the following description, the inner side of the rubber crawler 1 when mounted on a crawler type traveling vehicle is referred to as an “inner peripheral side”, and the outer side that is the traveling surface side is referred to as an “outer peripheral side”. Further, the direction in which the rubber crawler 1 circulates when the crawler type traveling vehicle travels is “circumferential direction”, and the direction orthogonal to the circumferential direction at this time and parallel to the rotation axis of the wheel 31 or the like of the crawler type traveling vehicle. It shall be called “width direction”.
ゴムクローラ１は、図２および図３を参照して、芯金２，…，２、クローラ本体３、ラグ１１，…，１１および抗張体１２，１２等からなる。
芯金２は、金属等の硬質材料によって形成される。芯金２は、全体として細長い略長方形の板状であり、その長手方向中程に、所定の間隔を有して一方の表面から突出する１対の突起部１３，１３を備えている。突起部１３，１３は、クローラ式走行車両が走行するときに、その転輪３１がゴムクローラ１から脱落しないように転輪３１を案内するためのものである。
2 and 3, the rubber crawler 1 includes cored bars 2, 2, 2, a crawler body 3, lugs 11, 11, 11, and tensile bodies 12, 12.
The cored bar 2 is formed of a hard material such as metal. The cored bar 2 has a generally elongated and substantially rectangular plate shape as a whole, and includes a pair of projecting portions 13 and 13 projecting from one surface at a predetermined interval in the middle in the longitudinal direction. The protrusions 13 and 13 are for guiding the wheel 31 so that the wheel 31 does not fall off the rubber crawler 1 when the crawler type traveling vehicle travels.
芯金２，…，２は、突起部１３，１３を内周側に突出させ、その長手方向をクローラ本体３の幅方向に一致させて、周方向に等間隔にクローラ本体３に埋め込まれている。
クローラ本体３は、ゴムによって無端帯状に形成されている。クローラ本体３は、その全周に渡って、クローラ本体３の内周側の面と外周側の面（接地側の面）とを貫通する係合孔１４，…，１４が、等間隔に埋め込まれた芯金２，…，２の間の幅方向の中央に設けられている。係合孔１４は、ゴムクローラ１が装着されるクローラ式走行車両の駆動輪の爪に係合されて、駆動輪の回転によりゴムクローラ１を循環運動させるためのものである。
The metal cores 2,..., 2 are embedded in the crawler body 3 at equal intervals in the circumferential direction with the protrusions 13 and 13 projecting to the inner peripheral side and the longitudinal direction thereof matching the width direction of the crawler body 3. Yes.
The crawler body 3 is formed in an endless belt shape with rubber. The crawler body 3 has embedded engagement holes 14,..., 14 penetrating the inner peripheral surface and the outer peripheral surface (grounding surface) of the crawler main body 3 at equal intervals over the entire circumference. Is provided at the center in the width direction between the cored bars 2. The engagement hole 14 is engaged with a claw of a driving wheel of a crawler type traveling vehicle to which the rubber crawler 1 is mounted, and causes the rubber crawler 1 to circulate by rotation of the driving wheel.
クローラ本体３は、芯金２の突起部１３，１３の（クローラ本体３の）それぞれの幅方向外側における内周側表面に、一定の幅を有する転輪走行帯１５，１５が形成されている。転輪走行帯１５は、ゴムクローラ１が装着されたクローラ式走行車両が走行するときに、転輪３１がその上を転動（走行）する部分である。
ラグ１１，…，１１は、クローラ本体３の外周側の表面から突出して、相互に周方向に間隔を有して幅方向の一端から他端まで略直線的に壁のように延びている。いずれのラグ１１，…，１１も、いずれかの１対の突起部１３，１３のクローラ本体３を挟んだ反対の側に設けられる。つまり、１対の突起部１３，１３と１つのラグ１１とは、周方向において重なる位置に配される。ここでいう「周方向において」重なるとは、例えばゴムクローラ１を接地側（外周側）から見たときに重なる意である。
The crawler main body 3 is formed with wheel running zones 15 and 15 having a certain width on the inner peripheral surface on the outer side in the width direction of the protrusions 13 and 13 of the core metal 2 (of the crawler main body 3). . The wheel running zone 15 is a portion where the wheel 31 rolls (runs) when the crawler type traveling vehicle to which the rubber crawler 1 is attached travels.
The lugs 11,..., 11 protrude from the outer peripheral surface of the crawler body 3, and extend substantially linearly from one end to the other end in the width direction with a space therebetween in the circumferential direction. Any of the lugs 11,..., 11 is provided on the opposite side of any one of the pair of protrusions 13 and 13 with the crawler body 3 interposed therebetween. That is, the pair of protrusions 13 and 13 and one lug 11 are arranged at positions that overlap in the circumferential direction. Here, “overlap in the circumferential direction” means that, for example, the rubber crawler 1 overlaps when viewed from the ground contact side (outer periphery side).
ラグ１１は、接地する端面における少なくとも幅方向において芯金２に重なる部分（以下接地する端面の一部であるこの部分を特に「接地端面１６」という）が、周方向に一定の幅を有して幅方向に略直線的に延びている。また、接地端面１６は、周方向においても芯金２に重なっている。
ラグ１１は、接地端面１６（幅方向において芯金２に重なる部分）を有していれば、接地端面１６を形成するラグ１１の部分が幅方向に略直線的に延びていなくてもよく、クローラ本体３の幅方向の一端から他端まで直線的延びているものでなくともよい。ただし、ラグ１１の接地端面１６における転輪３１の進行方向Ｍ（図１参照）側の幅方向に延びる端縁１７は、芯金２における転輪３１の進行方向Ｍ側の端面１８よりも進行方向Ｍに対して手前側に位置するように構成される。この基準となる端面１８は、芯金２の進行方向Ｍ側の端面が平面ではなく凹凸がある場合には、芯金２の進行方向Ｍ側の端面における周方向において転輪走行帯１５に重なる範囲の最も進行方向Ｍ側にある部分を基準とする。
The lug 11 has a constant width in the circumferential direction at a portion overlapping the cored bar 2 at least in the width direction on the end surface to be grounded (hereinafter, this portion which is a part of the end surface to be grounded is particularly referred to as “grounding end surface 16”). Extending substantially linearly in the width direction. Further, the ground contact end face 16 overlaps the cored bar 2 also in the circumferential direction.
As long as the lug 11 has the ground contact end face 16 (the part overlapping the cored bar 2 in the width direction), the lug 11 forming the ground contact end face 16 may not extend substantially linearly in the width direction. The crawler body 3 may not extend linearly from one end to the other end in the width direction. However, the edge 17 that extends in the width direction on the traveling direction M (see FIG. 1) side of the rolling wheel 31 in the ground contact end surface 16 of the lug 11 travels more than the end surface 18 on the traveling direction M side of the rolling wheel 31 in the cored bar 2. It is configured to be positioned on the near side with respect to the direction M. The end face 18 serving as a reference overlaps the wheel travel zone 15 in the circumferential direction of the end face on the traveling direction M side of the core metal 2 when the end face on the traveling direction M side of the core metal 2 is not flat but uneven. The portion of the range that is closest to the traveling direction M is used as a reference.
抗張体１２，１２は、複数のスチールコード等の抗張力コードが１列に並べられて形成される。それぞれの抗張体１２は、芯金２よりも外周側であって（クローラ本体３の）幅方向においてその一部が転輪走行帯１５に重なるように、クローラ本体３内に周方向全体にわたり埋め込まれている。なお、本発明は、抗張体１２，１２の有無に拘わらず実施可能であり、図１では抗張体１２，１２が省略されている。
ゴムクローラ１では、転輪走行帯１５，１５における周方向に隣り合う突起部１３，１３の間、つまり隣り合う芯金２，２の間が***している。以下、この***する部分を「***部１９」という。
The tensile bodies 12, 12 are formed by arranging a plurality of tensile cords such as steel cords in one row. Each tensile body 12 is located on the outer peripheral side of the core metal 2 and extends over the entire circumferential direction in the crawler body 3 so that a part of the tensile body 12 overlaps the wheel travel zone 15 in the width direction (of the crawler body 3). Embedded. It should be noted that the present invention can be carried out with or without the tensile bodies 12 and 12, and the tensile bodies 12 and 12 are omitted in FIG.
In the rubber crawler 1, the protrusions 13 and 13 that are adjacent to each other in the circumferential direction in the wheel traveling belts 15 and 15, that is, between the adjacent core bars 2 and 2 are raised. Hereinafter, this raised portion is referred to as a “raised portion 19”.
ところで、コンバインおよびクローラ式トラクタ等の自走式農機は、後進走行よりも前進走行する場合が圧倒的に多く、そのためゴムクローラに方向性（装着時の前後方向）を持たせることが可能である。そこで、ゴムクローラ１の転輪走行帯１５における***部１９，…，１９は、転輪３１の進入側と退出側とではその***する態様が異なっている。
図１を参照して、***部１９は、転輪３１の進行方向Ｍに順に並ぶ、第１***部２０、平坦部２１および第２***部２２の３つの部分からなっている。
第１***部２０は、転輪３１の進入側に位置する。第１***部２０は、周方向において接地端面１６における転輪３１の進行方向Ｍ側の端縁１７と芯金２における進行方向Ｍ側の端面１８との間Ｚ１に始点Ｐ１を有し、（クローラ本体３の）幅方向に母線を有する凹状の曲面（第１***部２０では円筒の内周面）を表面として進行方向Ｍに徐々に***する部分である。第１***部２０は、隣り合う芯金２，２の間Ｚ２の中間ＣＴよりも手前（Ｐ２）で平坦部２１につながる。
By the way, a self-propelled agricultural machine such as a combine and a crawler type tractor is overwhelmingly more likely to travel forward than reverse travel, so that it is possible to give the rubber crawler directionality (front-rear direction when mounted). . Therefore, the bulging portions 19,..., 19 in the rolling crawler belt 15 of the rubber crawler 1 are different in the manner of bulging on the entry side and the withdrawal side of the wheel 31.
Referring to FIG. 1, the bulging portion 19 is composed of three parts, a first bulging portion 20, a flat portion 21, and a second bulging portion 22, which are arranged in order in the traveling direction M of the wheel 31.
The first raised portion 20 is located on the entry side of the wheel 31. The first raised portion 20 has a starting point P1 at Z1 between the end edge 17 on the traveling direction M side of the rolling wheel 31 on the ground contact end surface 16 and the end surface 18 on the traveling direction M side of the cored bar 2 in the circumferential direction. The crawler body 3 is a portion that gradually rises in the traveling direction M with a concave curved surface having a generatrix in the width direction (in the first raised portion 20, a cylindrical inner peripheral surface). The first raised portion 20 is connected to the flat portion 21 before (P2) the intermediate CT between Z2 between the adjacent core bars 2 and 2.
接地端面１６が幅方向に傾斜しまたは端縁１７が直線ではない場合には、始点Ｐ１は、周方向において転輪走行帯１５に重なる部分における最も進行方向Ｍ側の部分と芯金２における進行方向Ｍ側の端面１８との間にもうけられる。
平坦部２１は、第１***部２０における進行方向Ｍ側の***高さをそのまま維持して芯金２，２の間の中間ＣＴを超えて（終点Ｐ３まで）延びる部分（Ｚ３）である。
第２***部２２は、平坦部２１の進行方向Ｍ側の端に連続し、平坦部２１の***高さから、幅方向に母線を有する凸状の曲面（第２***部２２では円柱の周面）を表面として進行方向Ｍに徐々に***の程度を減少させる。第２***部２２の終点Ｐ４は、第１***部２０の始点の目安となるラグ１１に対して進行方向Ｍ側に隣り合うラグ１１の接地端面１６における手前の端縁２３の位置または端縁２３よりも手前に設定される。第２***部２２の終点Ｐ４は、進行方向Ｍ側に隣り合うラグ１１の芯金２における進行方向Ｍと逆側の端面２４よりも手前であることが好ましい。基準となる端面２４は、端面１８と同様に、芯金２の進行方向Ｍとは逆側の端面が平面でない場合には、周方向において転輪走行帯１５に重なる範囲の最も進行方向Ｍとは逆側にある部分を基準とする。
When the ground contact end face 16 is inclined in the width direction or the end edge 17 is not a straight line, the starting point P1 is a portion that is closest to the traveling direction M in the circumferential direction and that travels in the cored bar 2. It is provided between the end face 18 on the direction M side.
The flat portion 21 is a portion (Z3) that extends beyond the intermediate CT between the metal cores 2 and 2 (up to the end point P3) while maintaining the height of the first ridge 20 on the traveling direction M side as it is.
The second raised portion 22 is continuous with the end of the flat portion 21 on the traveling direction M side, and has a convex curved surface having a generatrix in the width direction from the raised height of the flat portion 21 (the second raised portion 22 has a cylindrical periphery). The degree of bulging is gradually reduced in the traveling direction M with the surface) as the surface. The end point P4 of the second raised portion 22 is the position or edge of the front edge 23 on the ground contact end surface 16 of the lug 11 adjacent to the lug 11 that is adjacent to the advancing direction M side with respect to the lug 11 serving as a reference of the starting point of the first raised portion 20. It is set before 23. The end point P4 of the second raised portion 22 is preferably in front of the end surface 24 on the opposite side to the traveling direction M of the cored bar 2 of the lug 11 adjacent to the traveling direction M side. Similarly to the end surface 18, the reference end surface 24 is the most advancing direction M in a range that overlaps the wheel travel zone 15 in the circumferential direction when the end surface opposite to the advancing direction M of the metal core 2 is not flat. Is based on the part on the opposite side.
なお、上記における始点Ｐ１および終点Ｐ４等の位置は、いずれもゴムクローラ１を接地側から見たときに重なる位置、つまり周方向において重なる位置をいうものである。
上に説明した第１***部２０が平坦部２１に続く位置、および平坦部２１が第２***部２２に続く位置は、***部１９の実施態様の一例であり、この他の態様で***部１９を形成することができる。
***部１９における第１***部２０および第２***部２２のそれぞれの表面における曲面の態様、ならびにこれらに平坦部２１を含めた***の程度は、装着されるクローラ式走行車両の重量、ゴムクローラ１の大きさ、クローラ本体３の厚さ、クローラ本体３を形成するゴムの硬度、抗張体１２の特性、ラグ１１の高さ、ラグ１１の厚み、芯金２の形状および隣り合う芯金２，２間の距離等を勘案して決定される。また、***部１９は、抗張体１２を有しないゴムクローラに設けることができる。
Note that the positions such as the start point P1 and the end point P4 in the above are positions that overlap when the rubber crawler 1 is viewed from the ground contact side, that is, positions that overlap in the circumferential direction.
The position where the first ridge portion 20 described above follows the flat portion 21 and the position where the flat portion 21 continues after the second ridge portion 22 are examples of the embodiment of the ridge portion 19, and the ridge portion in other aspects. 19 can be formed.
The aspect of the curved surface on the surface of each of the first raised portion 20 and the second raised portion 22 in the raised portion 19, and the degree of the raised portion including the flat portion 21, the weight of the crawler type traveling vehicle to be mounted, the rubber crawler 1, the thickness of the crawler body 3, the hardness of the rubber forming the crawler body 3, the properties of the tensile body 12, the height of the lug 11, the thickness of the lug 11, the shape of the core metal 2, and the adjacent core metal It is determined in consideration of the distance between the two. The raised portion 19 can be provided on a rubber crawler that does not have the tensile body 12.
重量が４ｔｏｎのクローラ式走行車両に装着される、クローラ本体３の厚みが３０ｍｍ、ラグ高さが４５ｍｍ、芯金２の幅が４０ｍｍおよび芯金ピッチが９０ｍｍであるゴムクローラ１では、たとえば、第１***部２０は、ラグ１１の接地端面１６における進行方向Ｍ側の端縁１７から進行方向Ｍ側に５ｍｍの位置（Ｄ１＝５ｍｍ）を始点とし、その表面（凹状曲面）の曲率半径が１５０ｍｍ（図１におけるＲ１＝１５０ｍｍ）で進行方向Ｍ側に***する。平坦部２１は、突起部１３に対して幅方向横における転輪走行帯１５の表面２５より３ｍｍ（図１におけるＤ２＝３ｍｍ）***して８ｍｍ（図１におけるＺ３＝８ｍｍ）進行方向Ｍ側に続く。このゴムクローラ１では、第２***部２２は、その表面（凸状曲面）の曲率半径が１１０ｍｍ（図１におけるＲ２＝１５０ｍｍ）で進行方向Ｍ側に徐々に***の度合いが低減し、隣り合う芯金２の端面２４に周方向において重なる位置が終点となる。 In a rubber crawler 1 mounted on a crawler type traveling vehicle having a weight of 4 ton and having a crawler body 3 having a thickness of 30 mm, a lug height of 45 mm, a core metal 2 having a width of 40 mm and a core metal pitch of 90 mm, for example, 1 The raised portion 20 starts from a position (D1 = 5 mm) 5 mm from the edge 17 on the ground contact end surface 16 of the lug 11 on the traveling direction M side to the traveling direction M side, and the curvature radius of the surface (concave curved surface) is 150 mm. (R1 = 150 mm in FIG. 1) bulges in the traveling direction M side. The flat portion 21 protrudes 3 mm (D2 = 3 mm in FIG. 1) and 8 mm (Z3 = 8 mm in FIG. 1) in the traveling direction M side from the surface 25 of the wheel running belt 15 on the lateral side with respect to the protrusion 13. Continue. In this rubber crawler 1, the second bulging portion 22 is adjacent to the surface (convex curved surface) having a radius of curvature of 110 mm (R2 = 150 mm in FIG. 1), and the degree of bulging gradually decreases in the traveling direction M side. A position that overlaps the end surface 24 of the core metal 2 in the circumferential direction is the end point.
図１におけるＯ１，Ｏ２は、それぞれ第１***部２０の凹状曲面の軸心および第２***部２２の凸状曲面の軸心を示すものである。 O1 and O2 in FIG. 1 indicate the axis of the concave curved surface of the first raised portion 20 and the axis of the convex curved surface of the second raised portion 22, respectively.
表１は、種々の形態の***部を有するゴムクローラが装着されたクローラ式走行車両を走行させ、その振動の程度を調べた結果である。
表１における比較例１は、図４に示されるゴムクローラ４における場合である。このゴムクローラ４は、芯金２，２の間に***する***部４１が、凸状の曲面をその表面として転輪３１の進行方向Ｍに徐々に***する第１***部４２と、これに続いて凸状の曲面をその表面として進行方向Ｍに徐々に***の度合いを減少させる第２***部４３とからなる。
比較例２は、図５に示されるゴムクローラ５における場合である。ゴムクローラ５は、***部５１が、凹状の曲面をその表面として転輪３１の進行方向Ｍに徐々に***する第１***部５２と、これに続いて凹状の曲面をその表面として進行方向Ｍに徐々に***の度合いを減少させる第２***部５３とからなる。
Table 1 shows the results of running a crawler type traveling vehicle equipped with rubber crawlers having various types of raised portions and examining the degree of vibration.
Comparative Example 1 in Table 1 is a case in the rubber crawler 4 shown in FIG. The rubber crawler 4 includes a first raised portion 42 that has a raised portion 41 that is raised between the core bars 2 and 2 and that gradually protrudes in the traveling direction M of the roller 31 with a convex curved surface as its surface. Then, it consists of the 2nd protruding part 43 which reduces the degree of a protrusion gradually in the advancing direction M by making a convex curved surface into the surface.
Comparative Example 2 is a case in the rubber crawler 5 shown in FIG. The rubber crawler 5 includes a first raised portion 52 in which a raised portion 51 gradually rises in the advancing direction M of the wheel 31 with a concave curved surface as a surface thereof, and a traveling direction M with a concave curved surface as a surface thereof. And a second raised portion 53 that gradually reduces the degree of the raised portion.
比較例３は、図６に示されるゴムクローラ６における場合である。ゴムクローラ６は、***部６１が、転輪３１の進行方向Ｍに徐々に一定割合で***する第１***部６２と、これに続いて進行方向Ｍに徐々に一定割合で***の度合いを減少させる第２***部６３とからなる。ゴムクローラ６の第１***部６２および第２***部６３の表面は、いずれも平面である。
実施例１は、図７に示されるゴムクローラ１Ｂにおける場合である。ゴムクローラ１Ｂは、***部１９Ｂが、凹状の曲面をその表面として転輪３１の進行方向Ｍに徐々に***する第１***部２０Ｂと、これに続いて凸状の曲面をその表面として進行方向Ｍに徐々に***の度合いを減少させる第２***部２２Ｂとからなる。ゴムクローラ１Ｂは、先に説明したゴムクローラ１において、第１***部２０が隣り合う芯金２，２の中間ＣＴまで延び、平坦部２１がなく第１***部２０が第２***部２２に続く形態である。
Comparative Example 3 is a case in the rubber crawler 6 shown in FIG. The rubber crawler 6 has a first raised portion 62 in which the raised portion 61 is gradually raised in the moving direction M of the roller 31 at a constant rate, and subsequently the degree of the raised portion is gradually reduced in the fixed direction in the moving direction M. It consists of the 2nd protruding part 63 to be made. The surfaces of the first raised portion 62 and the second raised portion 63 of the rubber crawler 6 are both flat.
Example 1 is a case in the rubber crawler 1B shown in FIG. In the rubber crawler 1B, the bulging portion 19B has a first bulging portion 20B that gradually bulges in the traveling direction M of the wheel 31 with a concave curved surface as a surface thereof, and then a traveling direction with a convex curved surface as a surface thereof. M is a second raised portion 22B that gradually reduces the degree of the raised portion. In the rubber crawler 1B described above, the first ridge 20 extends to the intermediate CT between the adjacent core bars 2 and 2 in the rubber crawler 1 described above, and there is no flat portion 21 and the first ridge 20 becomes the second ridge 22. It is the following form.
実施例２は、図８に示されるゴムクローラ１Ｃにおける場合である。ゴムクローラ１Ｃは、***部１９Ｃが、転輪３１の進行方向Ｍに徐々に一定割合で***する第１***部２０Ｃと、これに続いて凸状の曲面をその表面として進行方向Ｍに徐々に***の度合いを減少させる第２***部２２Ｃとからなる。ゴムクローラ１Ｃの第１***部２０Ｃの表面は、平面である。
実施例３は、図１に示されるゴムクローラ１における場合である。
実施例４は、図９に示されるゴムクローラ１Ｄにおける場合である。ゴムクローラ１Ｄは、***部１９Ｄにおける第１***部２０Ｄが転輪３１の進行方向Ｍに徐々に一定割合で***する点を除き、図１に示されるゴムクローラと同一の構成である。したがって、ゴムクローラ１Ｄは、第１***部２０Ｄにおける進行方向Ｍ側終点の***高さをそのまま維持して延びる平坦部２１Ｄ、および平坦部２１Ｄに連続し凸状の曲面を表面として進行方向Ｍに徐々に***の度合いを減少させる第２***部２２Ｄを有する。
Example 2 is a case in the rubber crawler 1C shown in FIG. The rubber crawler 1C includes a first raised portion 20C in which the raised portion 19C gradually rises at a constant rate in the moving direction M of the rolling wheel 31, and then a gradually curved surface in the moving direction M with a convex curved surface as its surface. It comprises a second raised portion 22C that reduces the degree of the raised portion. The surface of the first raised portion 20C of the rubber crawler 1C is a flat surface.
Example 3 is a case in the rubber crawler 1 shown in FIG.
Example 4 is a case in the rubber crawler 1D shown in FIG. The rubber crawler 1D has the same configuration as the rubber crawler shown in FIG. 1 except that the first raised portion 20D of the raised portion 19D gradually rises at a constant rate in the traveling direction M of the roller 31. Therefore, the rubber crawler 1D extends in the traveling direction M with the convex portion curved continuously from the flat portion 21D that extends while maintaining the raised height at the end point on the traveling direction M side in the first raised portion 20D. A second raised portion 22D that gradually reduces the degree of the raised portion is provided.
比較例１〜３および実施例１，２，４におけるゴムクローラ４〜６，１Ｂ〜１Ｄの各***部４１，５１，６１，１９Ｂ〜１９Ｄは、その始点の位置が実施例３における始点Ｐ１と同位置であり、その終点の位置が図１に示される実施例３における終点Ｐ４の位置と同位置である。また、各***部４１，５１，６１，１９Ｂ〜１９Ｄにおける第２***部４３，５３，６３，２２Ｂ〜２２Ｄは、その始点における突起部１３の直近における転輪走行帯１５の表面４４，５４，６４，２５Ｂ〜２５Ｄからの***の程度が、実施例３における***の程度と同一にされている。 In each of the raised portions 41, 51, 61, 19B to 19D of the rubber crawlers 4 to 6, 1B to 1D in the comparative examples 1 to 3 and the examples 1, 2, and 4, the position of the starting point is the starting point P1 in the example 3. It is the same position, and the position of the end point is the same position as the position of the end point P4 in the third embodiment shown in FIG. Further, the second raised portions 43, 53, 63, and 22B to 22D in the raised portions 41, 51, 61, and 19B to 19D are the surfaces 44, 54, and The degree of the bulge from 64, 25B to 25D is the same as the degree of the bulge in Example 3.
各ゴムクローラ１，４〜６，１Ｂ〜１Ｄを装着した場合の走行時の振動は、クローラ式走行車両を時速８ｋｍ（高速走行）および時速３ｋｍ（低速走行）で走行させ、それぞれクローラ式走行車両に設置した加速度センサの測定値と運転者の体感とにより評価した。表１における振動指数は、比較例１における場合を１００とし、振動の低下が認められる場合を１０５、振動の低下が顕著に認められる場合を１１０とした。また、比較例１と比べて振動の増加が認められた場合を９５、振動の増加が顕著に認められた場合を９０とした。 When the rubber crawlers 1, 4 to 6, 1 B to 1 D are mounted, vibration during traveling causes the crawler type traveling vehicle to travel at a speed of 8 km per hour (high speed traveling) and 3 km per hour (low speed traveling), respectively. It was evaluated by the measured value of the acceleration sensor installed in the vehicle and the driver's experience. The vibration index in Table 1 was 100 in Comparative Example 1, 105 when a decrease in vibration was observed, and 110 when a significant decrease in vibration was observed. In addition, the case where an increase in vibration was recognized as compared with Comparative Example 1 was 95, and the case where a significant increase in vibration was recognized was 90.
表１に示される振動指数に基づく評価から、転輪走行帯１５における芯金２，２の間に、転輪３１の進行方向Ｍに徐々に一定割合で***しその表面が平面である第１***部２０Ｃ，２０Ｄ、または凹状の曲面をその表面として転輪３１の進行方向Ｍに徐々に***する第１***部２０，２０Ｂと、凸状の曲面をその表面として進行方向Ｍに徐々に***の度合いを減少させる第２***部２２，２２Ｂ〜２２Ｄとを備えた***部１９，１９Ｂ〜１９Ｄを有するゴムクローラ１，１Ｂ〜１Ｄが、高速走行時および低速走行時のクローラ式走行車両における振動を軽減させる。 From the evaluation based on the vibration index shown in Table 1, between the metal cores 2 and 2 in the wheel traveling zone 15, the first surface whose surface gradually rises in the traveling direction M of the wheel 31 at a constant rate and is flat. The first raised portions 20 and 20B that gradually rise in the traveling direction M of the rolling wheel 31 with the raised portions 20C and 20D or the concave curved surface as the surface, and gradually rise in the traveling direction M with the convex curved surface as the surface. The rubber crawlers 1 and 1B to 1D having the raised portions 19 and 19B to 19D having the second raised portions 22 and 22B to 22D for reducing the degree of vibration are vibrations in the crawler type traveling vehicle at the time of high speed traveling and low speed traveling. Reduce.
また、第１***部２０，２０Ｄと第２***部２２，２２Ｄとの間に平坦部２１，２１Ｄを備えたゴムクローラ１，１Ｄ（実施例３，４）は、平坦部を有しないゴムクローラ１Ｂ，１Ｃに比べて、低速走行時および高速走行時の総合的な振動軽減効果が若干優れている。
第１***部２０，２０Ｂ，２０Ｃ，２０Ｄ、および第２***部２２，２２Ｂ〜２２Ｄを備えたゴムクローラ１，１Ｂ〜１Ｄが装着されたクローラ式走行車両の走行時の振動が軽減される理由を、ゴムクローラ１を例に図１０を参照して以下に考察する。
The rubber crawlers 1 and 1D (Examples 3 and 4) including the flat portions 21 and 21D between the first raised portions 20 and 20D and the second raised portions 22 and 22D are rubber crawlers that do not have a flat portion. Compared to 1B and 1C, the overall vibration mitigation effect at low speeds and high speeds is slightly better.
The reason why the vibration at the time of traveling of the crawler type traveling vehicle equipped with the rubber crawlers 1, 1 </ b> B to 1 </ b> D provided with the first raised portions 20, 20 </ b> B, 20 </ b> C, 20 </ b> D and the second raised portions 22, 22 </ b> B to 22 </ b> D is reduced. Is considered below with reference to FIG. 10 by taking the rubber crawler 1 as an example.
クローラ式走行車両は、ゴムクローラ１には、駆動輪の回転によりゴムクローラ１を後方に押し出し、ゴムクローラ１の略半分の接地する下側における転輪走行帯１５，１５を転輪３１が転動することにより、前進する。ゴムクローラ１の接地する下側におけるラグ１１，…，１１には、後方に押し出す力Ｆが加えられ、走行面からはラグ１１に対して反力Ｒｆが作用する。そのため、通常ラグ１１，…，１１は、その先端側が進行方向Ｍ側に若干倒れた状態となる。
さて、転輪３１が丁度芯金２の上にあるとき（状態Ｔ１）、芯金２の下方のラグ１１ａには転輪３１を介してクローラ式走行車両の重さの一部が加わり、さらに倒れた状態が助長される。このラグ１１ａの倒れにより、ラグ１１ａと進行方向Ｍ側で隣り合うラグ１１ｂとの間のクローラ本体３には、内周側に凸状に湾曲させる曲げモーメントが作用する。そのため、転輪走行帯１５ａは、一瞬、その内周側への***の程度を増加させる（状態Ｔ１）。
In the crawler type traveling vehicle, the rubber crawler 1 is pushed backward by the rotation of the driving wheel, and the rolling wheels 31 roll the rolling crawler belts 15, 15 on the lower side of the rubber crawler 1, which is approximately half of the ground. Move forward by moving. To the lugs 11,..., 11 on the lower side where the rubber crawler 1 is in contact with the ground, a force F pushing backward is applied, and a reaction force Rf acts on the lugs 11 from the running surface. For this reason, the normal lugs 11,..., 11 are in a state where their tip ends are slightly tilted toward the traveling direction M side.
Now, when the wheel 31 is just above the mandrel 2 (state T1), a part of the weight of the crawler type traveling vehicle is added to the lug 11a below the mandrel 2 via the wheel 31. A fallen state is encouraged. Due to the fall of the lug 11a, a bending moment that curves in a convex shape on the inner peripheral side acts on the crawler body 3 between the lug 11a and the lug 11b adjacent in the traveling direction M side. Therefore, the rolling wheel travel zone 15a instantaneously increases the degree of bulging toward the inner periphery (state T1).
転輪３１がラグ１１ａとラグ１１ｂとの間の転輪走行帯１５ａに進行すると、転輪走行帯１５ａの転輪３１に接する部分には転輪３１からの下向きの荷重Ｆｃが加わる。この荷重Ｆｃによりラグ１１ａとラグ１１ｂとの間のクローラ本体３は下方にたわみ、ラグ１１ａはこれまでとは逆側に倒れ、ラグ１１ｂはその倒れの程度が増加する。
転輪３１がラグ１１ａとラグ１１ｂとの間の転輪走行帯１５ａを進むに伴い、すなわち、下向きの荷重Ｆｃの作用点が進行方向Ｍに移動するに伴い、この間のクローラ本体３のたわみは増加する。このクローラ本体３のたわみにより、***部１９の表面に形成され内周側に凸状であった転輪走行帯１５ａは下方に移動し（状態Ｔ２）、転輪３１は、ラグ１１ａとラグ１１ｂとの間において、***の程度が減少し略平らになった転輪走行帯１５ａを転動するものと考えられる。ラグ１１ａとラグ１１ｂとの間のクローラ本体３のたわみの程度は、ラグ１１ａとラグ１１ｂとの略中間で最大となり、転輪３１がラグ１１ｂに近づくにつれて小さくなる。
When the wheel 31 advances to the wheel travel zone 15a between the lug 11a and the lug 11b, a downward load Fc from the wheel 31 is applied to the portion of the wheel travel zone 15a that contacts the wheel 31. The load Fc causes the crawler body 3 between the lug 11a and the lug 11b to bend downward, the lug 11a falls to the opposite side, and the lug 11b increases the degree of the fall.
As the roller 31 advances in the wheel traveling zone 15a between the lug 11a and the lug 11b, that is, as the point of action of the downward load Fc moves in the traveling direction M, the deflection of the crawler body 3 during this period is To increase. Due to the deflection of the crawler body 3, the wheel running belt 15 a that is formed on the surface of the raised portion 19 and is convex on the inner peripheral side moves downward (state T <b> 2), and the wheel 31 includes the lugs 11 a and 11 b. It is considered that the rolling travel zone 15a, which is substantially flattened by decreasing the degree of bulging, rolls. The degree of deflection of the crawler body 3 between the lug 11a and the lug 11b is maximized at approximately the middle between the lug 11a and the lug 11b, and decreases as the roller 31 approaches the lug 11b.
ゴムクローラ１は、***部１９の第１***部２０が凹状の曲面を表面として進行方向Ｍに徐々に***し、第２***部２２が凸状の曲面を表面として進行方向Ｍに徐々に***の程度を減少していることにより、転輪３１の移動に伴うクローラ本体のたわみを利用して、転輪３１が移動する部分の転輪走行帯１５を略平坦にすることができる。その結果、ゴムクローラ１が装着されたクローラ式走行車両は、転輪３１の上下動が軽減されて走行時の振動が減少する。
また、表１の結果から、第１***部２０の表面が平面である場合も、上記と同様の理由により走行時の振動の軽減に効果があることが判る。
In the rubber crawler 1, the first raised portion 20 of the raised portion 19 gradually rises in the advancing direction M with a concave curved surface as the surface, and the second raised portion 22 gradually rises in the advancing direction M with the convex curved surface as the surface. By reducing the degree of the above, by using the deflection of the crawler body accompanying the movement of the wheel 31, the part of the wheel traveling zone 15 where the wheel 31 moves can be made substantially flat. As a result, the crawler type traveling vehicle to which the rubber crawler 1 is attached reduces the vertical movement of the rolling wheels 31 and reduces vibration during traveling.
In addition, it can be seen from the results in Table 1 that even when the surface of the first raised portion 20 is a flat surface, it is effective in reducing vibration during traveling for the same reason as described above.
第１***部２０，２０Ｂおよび第２***部２２，２２Ｂ，２２Ｃ，２２Ｄにおける凹状曲面または凸状曲面は、いずれも楕円柱の周面等の母線が交差せず湾曲する表面を有する形状であれば、円柱の周面等の断面が円の一部となるものでなくともよい。
上述の実施形態において、第１***部２０，２０Ｂ〜２０Ｄ、平坦部２１，２１Ｄおよび第２***部２２，２２Ｂ〜２２Ｄのそれぞれの長さを、上記以外に設計することができる。例えば、平坦部２１，２１Ｄの起点を隣り合う芯金２，２の中間ＣＴとし、または平坦部２１，２１Ｄの終点を隣り合う芯金２，２の中間ＣＴとしてもよい。
The concave curved surface or the convex curved surface in the first raised portions 20, 20B and the second raised portions 22, 22B, 22C, 22D are all shapes having curved surfaces that do not intersect with the generatrix such as the peripheral surface of the elliptic cylinder. For example, the cross-section of the circumferential surface of the cylinder may not be a part of the circle.
In the above-described embodiment, the lengths of the first raised portions 20 and 20B to 20D, the flat portions 21 and 21D, and the second raised portions 22 and 22B to 22D can be designed in addition to the above. For example, the starting point of the flat portions 21 and 21D may be the intermediate CT of the adjacent core bars 2 and 2, or the end point of the flat portions 21 and 21D may be the intermediate CT of the adjacent core bars 2 and 2.
その他、ゴムクローラ１，１Ｂ〜１Ｄ、およびゴムクローラ１，１Ｂ〜１Ｄの各構成または全体の構造、形状、寸法、個数、材質などは、本発明の趣旨に沿って適宜変更することができる。 In addition, each structure of rubber crawler 1,1B-1D and rubber crawler 1,1B-1D, or the whole structure, a shape, a dimension, a number, a material, etc. can be changed suitably according to the meaning of this invention.
本発明は、ンバイン、クローラ式トラクタおよびバックホー等の走行装置に装着されるゴムクローラに利用することができる。 INDUSTRIAL APPLICABILITY The present invention can be used for a rubber crawler mounted on a traveling device such as a mvine, a crawler tractor, and a backhoe.
１，１Ｂ〜１Ｄ ゴムクローラ
２ 芯金
３ クローラ本体
１１ ラグ
１５ 転輪走行帯
１６ 接地する端面（接地端面）
１７ 接地する端面における芯金の他方側に位置する端縁（接地端面の端縁）
１８ 芯金の一方における芯金の他方側に位置する側面（芯金の進行方向Ｒ側の端面）
２０，２０Ｂ〜２０Ｄ 第１***部
２１，２１Ｄ 平坦部
２２，２２Ｂ〜２２Ｄ 第２***部
1, 1B to 1D Rubber crawler 2 Core 3 Crawler body 11 Lug 15 Rolling wheel traveling zone 16 End surface to be grounded (grounding end surface)
17 Edge located on the other side of the cored bar at the end face to be grounded (edge of the ground end face)
18 Side surface located on the other side of the core in one of the cores (end surface of the core bar in the traveling direction R side)
20, 20B-20D 1st protruding part 21,21D Flat part 22,22B-22D 2nd protruding part
Claims (3)
前記クローラ本体の周方向に間隔を有して前記クローラ本体に埋め込まれた複数の芯金と、
前記クローラ本体の外周側の表面から突出し相互に前記周方向に間隔を有する複数のラグと、で形成され、
前記クローラ本体はその内周側表面に前記周方向に延びる１対の転輪走行帯を備え、
前記ラグは、少なくとも前記クローラ本体の幅方向において前記芯金に重なる部分ではその接地する端面が前記周方向において前記芯金に重なっており、
隣り合う前記芯金の間における前記転輪走行帯が、
隣り合う前記芯金の一方から中央に向かうにつれて***の程度が増加する第１***部における凹状の曲面または一定割合で***の程度が増加する第１***部における平面と、
前記第１***部および隣り合う前記芯金の他方の間に配され前記第１の***部と同じ***の程度から前記芯金の他方に向かうにつれて***の程度が減少する第２***部における凸状の曲面と、で形成されてなる
ことを特徴とするゴムクローラ。 A crawler body formed in an endless belt shape with rubber;
A plurality of metal cores embedded in the crawler body at intervals in the circumferential direction of the crawler body;
A plurality of lugs projecting from the outer peripheral surface of the crawler body and spaced apart from each other in the circumferential direction;
The crawler body includes a pair of wheel running zones extending in the circumferential direction on the inner peripheral surface thereof,
The lug has a grounding end face that overlaps the core metal in the circumferential direction at least in a portion overlapping the core metal in the width direction of the crawler body,
The rolling wheel travel zone between the adjacent core bars,
A concave curved surface in the first bulging portion where the degree of the bulging increases from one of the adjacent core bars toward the center, or a plane in the first bulging portion where the degree of the bulging increases at a certain rate;
Convex in the second raised portion, which is arranged between the first raised portion and the other of the adjacent cored bars, and the degree of the raised portion decreases from the same raised degree as the first raised portion toward the other of the cored bar. A rubber crawler characterized by being formed with a curved surface.
前記第１***部と前記第２***部との間における***の程度が変化しない平坦部の表面を備える
請求項１に記載のゴムクローラ。 The wheel running zone is
The rubber crawler according to claim 1, comprising a surface of a flat portion where a degree of bulge between the first bulge and the second bulge does not change.
前記芯金の前記一方に重なる前記ラグの前記周方向において前記転輪走行帯に重なる前記接地する端面における前記芯金の前記他方側に位置する端縁と、前記芯金の前記一方における前記芯金の前記他方側に位置する側面との間を始点とする
請求項１または請求項２に記載のゴムクローラ。 The raised portion of the first raised portion is
An end edge located on the other side of the cored bar on the end surface to be grounded that overlaps the wheel travel zone in the circumferential direction of the lug that overlaps the one of the cored bar, and the core in the one of the cored bar The rubber crawler according to claim 1, wherein a starting point is between a side surface of the gold located on the other side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008178930A JP2010018091A (en) | 2008-07-09 | 2008-07-09 | Rubber crawler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008178930A JP2010018091A (en) | 2008-07-09 | 2008-07-09 | Rubber crawler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2010018091A true JP2010018091A (en) | 2010-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008178930A Pending JP2010018091A (en) | 2008-07-09 | 2008-07-09 | Rubber crawler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2010018091A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9067631B1 (en) | 2010-12-14 | 2015-06-30 | Camoplast Solideal Inc. | Endless track for traction of a vehicle |
| US9334001B2 (en) | 2010-12-14 | 2016-05-10 | Camso Inc. | Drive sprocket, drive lug configuration and track drive arrangement for an endless track vehicle |
| US9511805B2 (en) | 2009-12-11 | 2016-12-06 | Camso Inc. | Endless track for propelling a vehicle, with edge-cutting resistance |
| US9543596B2 (en) * | 2013-03-28 | 2017-01-10 | Sumitomo Riko Company Limited | Seal member for fuel cell and fuel cell seal body using same |
| US10783723B2 (en) | 2015-06-29 | 2020-09-22 | Camso Inc. | Systems and methods for monitoring a track system for traction of a vehicle |
| US10933877B2 (en) | 2010-12-14 | 2021-03-02 | Camso Inc. | Track drive mode management system and methods |
| US11167810B2 (en) | 2015-03-04 | 2021-11-09 | Camso Inc. | Track system for traction of a vehicle |
| US11186330B2 (en) | 2010-06-30 | 2021-11-30 | Camso Inc. | Track assembly for an off-road vehicle |
| US11835955B2 (en) | 2017-12-08 | 2023-12-05 | Camso Inc. | Systems and methods for monitoring off-road vehicles |
-
2008
- 2008-07-09 JP JP2008178930A patent/JP2010018091A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9511805B2 (en) | 2009-12-11 | 2016-12-06 | Camso Inc. | Endless track for propelling a vehicle, with edge-cutting resistance |
| US11186330B2 (en) | 2010-06-30 | 2021-11-30 | Camso Inc. | Track assembly for an off-road vehicle |
| US10933877B2 (en) | 2010-12-14 | 2021-03-02 | Camso Inc. | Track drive mode management system and methods |
| US9162718B2 (en) | 2010-12-14 | 2015-10-20 | Camso Inc. | Endless track for traction of a vehicle |
| US9334001B2 (en) | 2010-12-14 | 2016-05-10 | Camso Inc. | Drive sprocket, drive lug configuration and track drive arrangement for an endless track vehicle |
| US9067631B1 (en) | 2010-12-14 | 2015-06-30 | Camoplast Solideal Inc. | Endless track for traction of a vehicle |
| US9878750B2 (en) | 2010-12-14 | 2018-01-30 | Camso Inc. | Endless track for traction of a vehicle |
| US10077089B1 (en) | 2010-12-14 | 2018-09-18 | Camso Inc. | Endless track for traction of a vehicle |
| US10328982B2 (en) | 2010-12-14 | 2019-06-25 | Camso Inc. | Drive sprocket, drive lug configuration and track drive arrangement for an endless track vehicle |
| US10730572B1 (en) | 2010-12-14 | 2020-08-04 | Camso Inc. | Endless track for traction of a vehicle |
| US10843750B2 (en) | 2010-12-14 | 2020-11-24 | Camso Inc. | Endless track for traction of a vehicle |
| US9543596B2 (en) * | 2013-03-28 | 2017-01-10 | Sumitomo Riko Company Limited | Seal member for fuel cell and fuel cell seal body using same |
| US11167810B2 (en) | 2015-03-04 | 2021-11-09 | Camso Inc. | Track system for traction of a vehicle |
| US11897558B2 (en) | 2015-03-04 | 2024-02-13 | Camso Inc. | Track system for traction of a vehicle |
| US10783723B2 (en) | 2015-06-29 | 2020-09-22 | Camso Inc. | Systems and methods for monitoring a track system for traction of a vehicle |
| US12008846B2 (en) | 2015-06-29 | 2024-06-11 | Camso Inc. | Systems and methods for monitoring a track system for traction of a vehicle |
| US11835955B2 (en) | 2017-12-08 | 2023-12-05 | Camso Inc. | Systems and methods for monitoring off-road vehicles |
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