JP3673748B2 - Elastic crawler - Google Patents

Elastic crawler Download PDF

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Publication number
JP3673748B2
JP3673748B2 JP2001338388A JP2001338388A JP3673748B2 JP 3673748 B2 JP3673748 B2 JP 3673748B2 JP 2001338388 A JP2001338388 A JP 2001338388A JP 2001338388 A JP2001338388 A JP 2001338388A JP 3673748 B2 JP3673748 B2 JP 3673748B2
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JP
Japan
Prior art keywords
crawler
width direction
lug
edge
elastic
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JP2001338388A
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Japanese (ja)
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JP2003137149A (en
Inventor
知久 吉田
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Sumitomo Rubber Industries Ltd
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Sumitomo Rubber Industries Ltd
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Priority to JP2001338388A priority Critical patent/JP3673748B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、農業機械又は土木・建設機械等の走行部に採用される弾性クローラに関するものである。
【0002】
【従来の技術】
従来、農業機械等の走行部として採用されるクローラ式走行装置にあっては、一般的に、進行方向前後一側に配置される駆動輪と、進行方向前後他側に配置されるアイドラと、これら駆動輪とアイドラとの間に配置される複数の転輪と、これら駆動輪、アイドラ、転輪に亘って巻き掛けられる履帯とによって主構成されている。
このクローラ式走行装置の履帯として、ゴムクローラが採用されているものがあり、このゴムクローラとして、特開平9−315355号公報にて開示されたものがある。
【0003】
このゴムクローラは、図9及び図10(a)に示すように、ゴムによって無端帯状に形成されたクローラ本体31を備えており、このクローラ本体31の外周側には、ラグ32がクローラ周方向Aに所定間隔をおいて設けられている。
この弾性クローラ30は、ラグ32がクローラ幅方向Bに沿って形成された梯子型クローラであり、ラグ32は、クローラ幅方向Bの一方の端部のみがクローラ本体31の幅方向端縁31aからクローラ幅方向B外方に突出した突出部33を有するラグ32と、クローラ幅方向Bの他方の端部のみがクローラ本体31の幅方向端縁31aからクローラ幅方向B外方に突出した突出部33を有するラグ32とがクローラ周方向Aに交互に配置形成されているものである。
【0004】
この梯子型クローラ30にあっては、ラグ32に突出部33を形成することにより、湿田等の泥濘地での牽引機能を確保するようにしたものである。
また、このラグ32の突出部33形成側において、ラグ32の頂部(接地面)34のクローラ幅方向Bの端縁34aは、クローラ本体31の幅方向端縁31aよりもクローラ幅方向B外側方に位置している。
【0005】
【発明が解決しようとする課題】
前記弾性クローラ30にあっては、湿田等の泥濘地等を走行する際において、ラグ32によって踏まれた部分の泥土は、ラグ32のクローラ幅方向B外側方及びクローラ周方向A前後に押しのけられる。
このラグ32によって押しのけられた泥土は、クローラ本体31下においては、該クローラ本体31の下面(外周面)によって踏まれて、平らになるが、ラグ32の突出部33によって押しのけられた泥土は、クローラ本体31の幅方向B外側方に盛り上がり部となって残るという問題がある。
【0006】
なお、この泥土の盛り上がり部が生じると、圃場を荒らす、又は刈り取り作業において、未刈株に泥が付き刈刃が摩耗したり、該泥を持ち上げたり等するという問題が生じる。
そこで、本発明は、前記問題点に鑑みて、クローラ本体の幅方向端縁からクローラ幅方向外方に突出する突出部が形成されたラグを備えた弾性クローラであっても、ラグの突出部によって押しのけられた泥土が、クローラ本体の外側方に盛り上がるのを防止するようにした弾性クローラを提供することを目的とする。
【0007】
【課題を解決するための手段】
本発明が技術的課題を解決するために講じた技術的手段は、弾性体によって無端帯状に形成されたクローラ本体を備え、このクローラ本体の外周側に、クローラ本体の幅方向端縁からクローラ幅方向外方に突出する突出部を有するラグが設けられ、このラグの突出部形成側において、ラグの頂部のクローラ幅方向の端縁、クローラ本体の幅方向端縁よりクローラ幅方向内方に位置させて該ラグのクローラ本体の幅方向端縁からの突出部の体積を小とし、しかも、該ラグのクローラ幅方向の左右の側面をクローラ周方向からみてラグの幅方向端縁から突出部端縁にかけて直線状の斜辺を有する台形状としたことを特徴とする。
【0008】
また、クローラ本体の内周側には、クローラ内周側に盛り上がるリブが設けられ、このリブは、ラグの突出部形成側に対応する部位に設けらているのがよい。
【0009】
【発明の実施の形態】
以下、本発明の実施の形態を図面を参照して説明する。
図1〜図7は第1の実施の形態を示しており、図2において、1は、農業機械等の走行部として採用されるクローラ式走行装置である。
このクローラ式走行装置1は、進行方向(図2の左右方向)前後一側に配置された駆動輪(スプロケット)2と、進行方向前後他側に配置されたアイドラ3と、これら駆動輪2とアイドラ3との間に配置された複数個の転輪4とをトラックフレーム5の左右両側のサイドフレームに左右方向(図2の紙面貫通方向)の軸心廻りに回転自在に支持すると共に、これら駆動輪2,アイドラ3及び転輪4に亘ってエンドレス状の弾性クローラ6を巻き掛けて主構成されており、このクローラ式走行装置1を採用した機械の、本機側からの重量等の荷重は転輪4を介して弾性クローラ6に作用し、駆動輪2を回転駆動することにより弾性クローラ6を周方向Aに循環回走させることで進行する。
【0010】
前記弾性クローラ6は、図1〜図7に示すように、ゴム様弾性体(ゴム、樹脂等)によってエンドレスの帯状に形成されたクローラ本体8と、このクローラ本体8内に、クローラ周方向Aに間隔をおいて埋設された芯金9と、クローラ内周側Cのクローラ幅方向B(左右方向)中央側に、クローラ周方向Aに間隔をおいて設けられていて転輪4等の脱輪(弾性クローラ6の外れ)を防止する脱輪防止部10とを備えている。
クローラ本体8の幅方向B中央部で且つクローラ周方向Aで隣り合う芯金9間には、駆動輪2の歯を芯金に噛み合わせるべく、該歯が挿入される係合孔13が形成されている。
【0011】
なお、クローラ本体8内には、スチールコード等の抗張力コードからなる抗張体がクローラ周方向A全周に亘って埋設される。
芯金9は、クローラ幅方向Bに長く形成されており、そのクローラ内周側Cのクローラ幅方向B中央側に、左右一対の係合突部14が設けられ、この左右の係合突部14が脱輪防止部10とされている。
また、クローラ本体8の外周側Dには、ゴム様弾性体からなるラグ12A,12Bが、該クローラ本体8に一体的に設けられている。
【0012】
このラグ12A,12Bは、係合孔13間ごとに、且つクローラ幅方向Bに沿って形成されており、そのクローラ幅方向Bの一方がクローラ本体8の幅方向B端縁8aから突出する第1のラグ12Aと、そのクローラ幅方向Bの他方がクローラ本体8の幅方向B端縁8aから突出する第2のラグ12Bとからなる。
すなわち、第1のラグ12Aは、クローラ本体8の幅方向B一側部の幅方向B中途部からクローラ本体8の他側部に向けて延出され且つクローラ本体8の他側部の幅方向B端縁8aから突出する突出部16を有し、第2のラグ12Bは、クローラ本体8の幅方向B他側部の幅方向B中途部からクローラ本体8の一側部に向けて延出され且つクローラ本体8の一側部の幅方向B端縁8aから突出する突出部16を有する。
【0013】
なお、本実施の形態では、このラグの突出部16は、クローラ本体8の幅方向B端縁8aから幅方向B外側方に、一体的に延出された部分を有する。
これら第1のラグ12Aと第2のラグ12Bとは、クローラ周方向Aに所定間隔をおいて交互に配置され且つクローラ周方向A全周に亘って設けられている。
各ラグ12A,12Bの、クローラ本体8の端縁8aから突出する突出部16の、前記端縁8aからの突出量Lは、限定されることはないが、例えば、3〜15mm程度とされる。
【0014】
また、このラグ12A,12Bは、クローラ本体8からクローラ厚さ方向E外方に向けて突出状であり、そのクローラ周方向A前後の面17が突出方向に向かうに従って間隔が漸次狭まるように形成されていると共に、左右の側面18が突出方向に向かうに従って間隔が漸次狭まるように形成されていて、側方及びクローラ周方向Aからみて台形状とされている。
そして、このラグ12A,12Bの突出部16形成側において、ラグ12A,12Bの頂部(接地面)19のクローラ幅方向Bの端縁19aは、クローラ本体8のクローラ幅方向B端縁8aよりも、寸法Mだけ、クローラ幅方向B内方側に位置している。
【0015】
また、ラグ12A,12Bの頂部19の、突出部16形成側は、クローラ幅方向B端縁19aに向かうに従ってクローラ内周側Cに移行する傾斜面20とされている。
なお、本実施の形態では、ラグ12A,12Bのクローラ周方向Aの幅は、突出部16形成側で最も広幅に形成され、その反対側は突出部16形成側よりも若干幅狭に形成され、係合孔13間で最も狭幅に形成されており、該狭幅部分から広幅部分にかけては、段階的に広幅となるように形成されている。
【0016】
また、クローラ本体8の内周面には、クローラ内周側Cに向けて盛り上げるリブ21が設けられている。
このリブ21はクローラ幅方向Bに形成されていて、ラグ12A,12Bの突出部16形成側に対応する部位に設けられていて、クローラ周方向Aに関して千鳥状に配設されている。
また、このリブ21のクローラ周方向Aの幅は、ラグ12A,12Bの最広幅部分と略同幅に形成されていると共に、ラグ12A,12Bの突出部16の突出量Lと略同量、クローラ本体8の端縁8aから突出しており、ラグ12A,12Bの突出部16と一体的に接合されている。
【0017】
図8は第2の実施の形態を示しており、前記第1の実施の形態と異なる点について説明する。
この弾性クローラ6にあっては、第1のラグ12Aが前記実施の形態と同様に突出部16を備えており、第2のラグ12Bについては、クローラ本体8の幅方向B端縁8aから突出していないものである。
また、リブ21は、第1のラグ12Aの突出部16形成側に対応する部位に設けられている。
【0018】
なお、ラグ12A、12Bは、クローラ幅方向Bの両側が、クローラ本体8から突出するように形成されていてもよい。
【0019】
【発明の効果】
弾性体によって無端帯状に形成されたクローラ本体の外周側に、クローラ本体の幅方向端縁からクローラ幅方向外方に突出する突出部を有するラグが設けられた弾性クローラを装着して、湿田等の泥濘地等を走行する際において、ラグによって踏まれた部分の泥土は、ラグのクローラ幅方向外側方及びクローラ周方向前後に押しのけられるが、このとき、従来のように、ラグの突出部形成側において、ラグの頂部のクローラ幅方向の端縁が、クローラ本体の幅方向端縁よりもクローラ幅方向外方に位置していて、ラグの頂部がクローラ本体の幅方向端縁からはみ出しているものにあっては、図10(a)に斜線部で示すように、ラグの突出部の(泥土を押しのける部分の)体積が大であるので、この突出部で踏まれて、クローラ本体の外方側に押し出される泥土は、盛り上がり部となって残るが、これに対して、本発明の弾性クローラにあっては、ラグの突出部形成側おける、ラグの頂部のクローラ幅方向の端縁は、クローラ本体の幅方向端縁よりクローラ幅方向内方に位置していて、ラグの頂部がクローラ本体の幅方向端縁からはみ出していないので、図10(b)に斜線部で示すように、ラグの突出部の(泥土を押しのける部分の)体積が従来のものに比べてかなり小となるので、ラグの突出部によって押しのけられる泥土が、クローラ本体の幅方向外方に、盛り上がるのが防止される。
【0020】
以上のように、本発明にあっては、クローラ本体の幅方向端縁からクローラ幅方向外方に突出する突出部が形成されているラグを備えた弾性クローラであっても、ラグの突出部によって泥土の盛り上がり部が生じるのを防止できるという効果を奏する。
【図面の簡単な説明】
【図1】第1の実施の形態に係る弾性クローラの一部分の、クローラ外周側からみた平面図である。
【図2】クローラ式走行装置の側面図である。
【図3】ラグの突出部形成側の拡大図である。
【図4】図1のF−F線矢示断面図である。
【図5】図1のG−G線矢示断面図である。
【図6】図1のH−H線矢示断面図である。
【図7】第1の実施の形態に係る弾性クローラの一部分の、クローラ内周側からみた背面図である。
【図8】第2の実施の形態に係る弾性クローラの一部分の、クローラ外周側からみた平面図である。
【図9】従来のゴムクローラの図である。
【図10】従来のラグの突出部と本発明のラグの突出部との比較を示すラグの正面図であり、(a)は従来のクローラを示し、(b)は本発明のクローラを示す。
【符号の説明】
8 クローラ本体
8a 端縁
12A ラグ
12B ラグ
16 突出部
19 頂部
19a 端縁
21 リブ
B クローラ幅方向
D クローラ外周側
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elastic crawler employed in a traveling section of an agricultural machine or a civil / construction machine.
[0002]
[Prior art]
Conventionally, in a crawler type traveling device adopted as a traveling unit such as an agricultural machine, in general, a drive wheel disposed on one side before and after the traveling direction, an idler disposed on the other side before and after the traveling direction, It is mainly constituted by a plurality of wheels disposed between the driving wheels and the idler, and the crawler belts wound around the driving wheels, the idler and the wheels.
As a crawler belt of this crawler type traveling device, there is one in which a rubber crawler is adopted, and as this rubber crawler, there is one disclosed in JP-A-9-315355.
[0003]
As shown in FIGS. 9 and 10A, the rubber crawler includes a crawler main body 31 formed in an endless belt shape with rubber, and a lug 32 is provided on the outer peripheral side of the crawler main body 31 in the crawler circumferential direction. A is provided at a predetermined interval.
This elastic crawler 30 is a ladder type crawler in which a lug 32 is formed along the crawler width direction B. The lug 32 has only one end portion in the crawler width direction B from the width direction edge 31a of the crawler body 31. A lug 32 having a protruding portion 33 protruding outward in the crawler width direction B, and a protruding portion in which only the other end portion in the crawler width direction B protrudes outward in the crawler width direction B from the width direction edge 31a of the crawler body 31 The lugs 32 having 33 are alternately arranged and formed in the crawler circumferential direction A.
[0004]
In this ladder-type crawler 30, a projection 33 is formed on the lug 32 so as to ensure a traction function in a muddy area such as a wetland.
Further, on the projecting portion 33 forming side of the lug 32, the end edge 34 a in the crawler width direction B of the top portion (grounding surface) 34 of the lug 32 is more outward in the crawler width direction B than the width direction edge 31 a of the crawler body 31. Is located.
[0005]
[Problems to be solved by the invention]
In the elastic crawler 30, when traveling in a muddy area such as a wet paddy field, the mud in the portion stepped on by the lug 32 is pushed outward in the crawler width direction B of the lug 32 and in the crawler circumferential direction A. .
The mud pushed away by the lug 32 is stepped on the lower surface (outer peripheral surface) of the crawler main body 31 and flattened under the crawler main body 31, but the mud pushed away by the protrusion 33 of the lug 32 is There is a problem that the crawler body 31 remains as a raised portion on the outer side in the width direction B.
[0006]
In addition, when this muddy soil rises, a problem arises in that the farming field is roughened or the cutting blade is worn by the mud and the cutting blade is worn or the mud is lifted in the cutting operation.
Therefore, in view of the above problems, the present invention provides an elastic crawler provided with a lug formed with a projecting portion that projects outward in the crawler width direction from the edge in the width direction of the crawler body. It is an object of the present invention to provide an elastic crawler which prevents mud mud pushed by the outer side of the crawler body from rising.
[0007]
[Means for Solving the Problems]
The technical means taken by the present invention to solve the technical problem includes a crawler body formed in an endless belt shape by an elastic body, and the crawler width from the width direction edge of the crawler body on the outer peripheral side of the crawler body. lugs provided with a protruding portion protruding outward in the protruding part forming side of the lug, the crawler width direction of the end edge of the top of the lug, in the crawler width direction inner side than the width direction edges of the crawler body The volume of the protrusion from the width direction edge of the crawler body of the lug is made small, and the right and left side surfaces of the lug in the crawler width direction are viewed from the crawler circumferential direction and protrude from the edge in the width direction of the lug It is characterized by having a trapezoidal shape having a linear hypotenuse toward the edge .
[0008]
Further, a rib that rises toward the crawler inner peripheral side is provided on the inner peripheral side of the crawler body, and this rib is preferably provided at a portion corresponding to the protruding portion forming side of the lug.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1-7 has shown 1st Embodiment, In FIG. 2, 1 is a crawler type traveling apparatus employ | adopted as traveling parts, such as an agricultural machine.
This crawler type traveling device 1 includes a drive wheel (sprocket) 2 disposed on one side in the traveling direction (left-right direction in FIG. 2), an idler 3 disposed on the other side in the traveling direction, and the drive wheels 2. A plurality of rolling wheels 4 arranged between the idler 3 and the left and right side frames of the track frame 5 are rotatably supported around the axial center in the left-right direction (the through direction in FIG. 2). An endless elastic crawler 6 is wound around the driving wheel 2, the idler 3 and the rolling wheel 4, and a load such as a weight from the machine side of the machine using the crawler type traveling device 1 is constructed. It acts on the elastic crawler 6 via the rolling wheel 4 and rotates by driving the driving wheel 2 to rotate the elastic crawler 6 in the circumferential direction A.
[0010]
As shown in FIGS. 1 to 7, the elastic crawler 6 includes an endless belt-shaped crawler body 8 formed of a rubber-like elastic body (rubber, resin, etc.), and a crawler circumferential direction A in the crawler body 8. Are disposed at intervals in the crawler circumferential direction A on the center side of the crawler width direction B (left-right direction) on the crawler inner circumferential side C, and the rollers 4 and the like are removed. A derailment prevention unit 10 that prevents a ring (disengagement of the elastic crawler 6) is provided.
An engagement hole 13 into which the teeth of the drive wheel 2 are inserted is formed between the core bars 9 adjacent to each other in the center portion in the width direction B of the crawler body 8 and in the crawler circumferential direction A. Has been.
[0011]
A tensile body made of a tensile cord such as a steel cord is embedded in the crawler body 8 over the entire circumference of the crawler circumferential direction A.
The metal core 9 is formed long in the crawler width direction B, and a pair of left and right engagement protrusions 14 are provided on the crawler inner circumferential side C on the center side of the crawler width direction B. Reference numeral 14 denotes a wheel removal preventing portion 10.
Further, lugs 12 </ b> A and 12 </ b> B made of a rubber-like elastic body are integrally provided on the crawler main body 8 on the outer peripheral side D of the crawler main body 8.
[0012]
The lugs 12A and 12B are formed between the engagement holes 13 and along the crawler width direction B, and one of the crawler width directions B protrudes from the width direction B end edge 8a of the crawler body 8. One lug 12 </ b> A and a second lug 12 </ b> B projecting from the width direction B end edge 8 a of the crawler main body 8 on the other side in the crawler width direction B.
That is, the first lug 12 </ b> A extends from the middle in the width direction B on one side in the width direction B of the crawler body 8 toward the other side of the crawler body 8 and in the width direction on the other side of the crawler body 8. The second lug 12B has a projecting portion 16 projecting from the B edge 8a, and the second lug 12B extends from a middle portion in the width direction B of the other side portion of the crawler body 8 toward the one side portion of the crawler body 8 And a protrusion 16 protruding from the width direction B edge 8a of one side of the crawler body 8.
[0013]
In the present embodiment, the lug protrusion 16 has a portion that extends integrally from the width direction B end edge 8 a of the crawler body 8 outward in the width direction B.
The first lugs 12A and the second lugs 12B are alternately arranged at a predetermined interval in the crawler circumferential direction A and are provided over the entire circumference of the crawler circumferential direction A.
The protruding amount L from the end edge 8a of the protruding portion 16 protruding from the end edge 8a of the crawler body 8 of each lug 12A, 12B is not limited, but is, for example, about 3 to 15 mm. .
[0014]
Further, the lugs 12A and 12B protrude from the crawler body 8 outward in the crawler thickness direction E, and are formed such that the distance between the surfaces 17 before and after the crawler circumferential direction A gradually becomes narrower as it goes in the protruding direction. In addition, the left and right side surfaces 18 are formed so that the interval gradually narrows toward the protruding direction, and are trapezoidal when viewed from the side and the crawler circumferential direction A.
Then, on the projecting portion 16 side of the lugs 12A, 12B, the crawler width direction B end edge 19a of the crest portion (grounding surface) 19 of the lugs 12A, 12B is more than the crawler width direction B end edge 8a of the crawler body 8. , Only the dimension M is located on the inner side of the crawler width direction B.
[0015]
Further, the projecting portion 16 forming side of the top portion 19 of the lugs 12A and 12B is an inclined surface 20 that moves to the crawler inner peripheral side C toward the crawler width direction B edge 19a.
In the present embodiment, the width of the lugs 12A, 12B in the crawler circumferential direction A is formed to be the widest on the protruding portion 16 forming side, and the opposite side is formed slightly narrower than the protruding portion 16 forming side. The narrowest width is formed between the engagement holes 13, and the width is gradually increased from the narrow portion to the wide portion.
[0016]
A rib 21 is provided on the inner peripheral surface of the crawler body 8 so as to rise toward the crawler inner peripheral side C.
The ribs 21 are formed in the crawler width direction B, are provided at portions corresponding to the protruding portion 16 formation side of the lugs 12A, 12B, and are arranged in a staggered manner in the crawler circumferential direction A.
Further, the width of the rib 21 in the crawler circumferential direction A is formed to be substantially the same width as the widest width portions of the lugs 12A and 12B, and is substantially the same as the protruding amount L of the protruding portion 16 of the lugs 12A and 12B. It protrudes from the end edge 8a of the crawler main body 8, and is integrally joined to the protruding portions 16 of the lugs 12A and 12B.
[0017]
FIG. 8 shows a second embodiment, and differences from the first embodiment will be described.
In this elastic crawler 6, the first lug 12 </ b> A has a protruding portion 16 as in the above embodiment, and the second lug 12 </ b> B protrudes from the width direction B edge 8 a of the crawler body 8. It is not.
Moreover, the rib 21 is provided in the site | part corresponding to the protrusion 16 formation side of the 1st lug 12A.
[0018]
The lugs 12 </ b> A and 12 </ b> B may be formed so that both sides in the crawler width direction B protrude from the crawler main body 8.
[0019]
【The invention's effect】
An elastic crawler provided with a lug having a protruding portion protruding outward in the crawler width direction from an end edge in the width direction of the crawler main body is attached to the outer peripheral side of the crawler main body formed in an endless belt shape by an elastic body. When traveling on mudland, etc., the mud that has been stepped on by the lug is pushed outward in the crawler width direction of the lug and back and forth in the crawler circumferential direction. On the side, the crawler width direction edge of the top of the lug is located outward in the crawler width direction from the width direction edge of the crawler body, and the top of the lug protrudes from the width direction edge of the crawler body. Since the volume of the lug protrusion (the part that pushes the mud) is large, as shown by the shaded area in FIG. 10A, the object is stepped on the outside of the crawler body. Side The mud that is pushed out remains as a raised part. On the other hand, in the elastic crawler of the present invention, the crawler width direction edge of the claw width direction at the top of the lug on the lug protrusion forming side is the crawler body. Since the top of the lug does not protrude from the widthwise edge of the crawler body, the lug protrudes as shown by the hatched portion in FIG. 10 (b). Since the volume of the part (the part that pushes the mud) is considerably smaller than the conventional one, the mud that is pushed away by the lug protrusions is prevented from rising outward in the width direction of the crawler body.
[0020]
As described above, in the present invention, even in the case of an elastic crawler having a lug in which a protruding portion that protrudes outward in the crawler width direction from the width direction edge of the crawler body is provided, the protruding portion of the lug This produces an effect that it is possible to prevent the raised portion of mud from being generated.
[Brief description of the drawings]
FIG. 1 is a plan view of a part of an elastic crawler according to a first embodiment as viewed from the crawler outer peripheral side.
FIG. 2 is a side view of the crawler type traveling device.
FIG. 3 is an enlarged view of a lug protruding portion forming side.
4 is a cross-sectional view taken along line FF in FIG. 1. FIG.
5 is a cross-sectional view taken along line GG in FIG. 1. FIG.
6 is a cross-sectional view taken along line HH in FIG. 1. FIG.
FIG. 7 is a rear view of a part of the elastic crawler according to the first embodiment as viewed from the inner peripheral side of the crawler.
FIG. 8 is a plan view of a part of the elastic crawler according to the second embodiment as viewed from the outer periphery of the crawler.
FIG. 9 is a view of a conventional rubber crawler.
FIG. 10 is a front view of a lug showing a comparison between a conventional lug protrusion and a lug protrusion of the present invention, where (a) shows a conventional crawler and (b) shows a crawler of the present invention. .
[Explanation of symbols]
8 Crawler body 8a Edge 12A Lug 12B Lug 16 Protruding part 19 Top part 19a Edge 21 Rib B Crawler width direction D Crawler outer peripheral side

Claims (2)

弾性体によって無端帯状に形成されたクローラ本体を備え、このクローラ本体の外周側に、クローラ本体の幅方向端縁からクローラ幅方向外方に突出する突出部を有するラグが設けられ、このラグの突出部形成側において、ラグの頂部のクローラ幅方向の端縁、クローラ本体の幅方向端縁よりクローラ幅方向内方に位置させて該ラグのクローラ本体の幅方向端縁からの突出部の体積を小とし、しかも、該ラグのクローラ幅方向の左右の側面をクローラ周方向からみてラグの幅方向端縁から突出部端縁にかけて直線状の斜辺を有する台形状としたことを特徴とする弾性クローラ。A crawler body formed in an endless belt shape by an elastic body is provided, and a lug having a protruding portion that protrudes outward in the crawler width direction from the width direction edge of the crawler body is provided on the outer peripheral side of the crawler body. in the protruding portion formation side, the top of the lug edges of the crawler width direction, and is positioned in the crawler width direction inner side than the width direction edges of the crawler body in the protruding portion from the widthwise end edges of the crawler body of the lug The volume is small, and the left and right side surfaces in the crawler width direction of the lug are trapezoidal having a straight hypotenuse from the edge in the width direction of the lug to the edge of the protruding portion when viewed from the crawler circumferential direction. Elastic crawler. クローラ本体の内周側には、クローラ内周側に盛り上がるリブが設けられ、このリブは、クローラ幅方向の一方がクローラ本体の幅方向端縁から突出するラグの突出部形成側に対応する部位に設けられていることを特徴とする請求項1に記載の弾性クローラ。  On the inner peripheral side of the crawler body, a rib that rises to the inner peripheral side of the crawler is provided, and this rib corresponds to the protruding portion forming side of the lug that protrudes from the edge in the width direction of the crawler main body in the crawler width direction. The elastic crawler according to claim 1, wherein the elastic crawler is provided.
JP2001338388A 2001-11-02 2001-11-02 Elastic crawler Expired - Fee Related JP3673748B2 (en)

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KR101788659B1 (en) * 2015-07-16 2017-11-15 동일고무벨트주식회사 Rubber Track

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