JPS621027Y2 - - Google Patents
Info
- Publication number
- JPS621027Y2 JPS621027Y2 JP5707081U JP5707081U JPS621027Y2 JP S621027 Y2 JPS621027 Y2 JP S621027Y2 JP 5707081 U JP5707081 U JP 5707081U JP 5707081 U JP5707081 U JP 5707081U JP S621027 Y2 JPS621027 Y2 JP S621027Y2
- Authority
- JP
- Japan
- Prior art keywords
- fin
- base
- mud
- elastic endless
- lugs
- 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.)
- Expired
Links
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Tires In General (AREA)
Description
【考案の詳細な説明】
本考案はコンバイン等の農業用車両に装着して
使用され、殊に湿田等の泥地帯走行に適する弾性
無限軌道帯に係る。[Detailed Description of the Invention] The present invention relates to an elastic endless track belt that is used by being attached to an agricultural vehicle such as a combine harvester, and is particularly suitable for running in muddy areas such as wet fields.
一般に帯状弾性無端本体の外周面に適宜間隔を
おいて周方向に並列された接地ラグを形成した弾
性無限軌道帯は周知である。従来、かかる弾性無
限軌道帯を泥地帯走行に適するようにするため
に、帯状弾性無端本体の両側端部においてラグ間
部分を切り欠き、それによつてラグの横方向端部
を無端本体の側部から突出するひれ状部となし、
このひれ状部を以て泥土を掻く作用を行なわし
め、たとえラグ間に泥土が詰つてもこのひれ状部
により牽引力を維持させ得るようにすることが提
案されている。 In general, an elastic endless track band is well known in which grounding lugs are formed on the outer circumferential surface of a band-shaped elastic endless body and arranged in parallel in the circumferential direction at appropriate intervals. Conventionally, in order to make such an elastic endless track band suitable for running on muddy areas, the parts between the lugs are cut out at both ends of the endless band-like endless body, thereby making the lateral ends of the lugs fit into the sides of the endless body. With fin-like parts protruding from the
It has been proposed that the fins be used to scrape mud so that even if the lugs become clogged with mud, the fins can maintain traction.
かかるひれ状部はそれ自体泥土中における所期
の効果を充分にもたらすのであるが、弾性材料よ
り成るために、たとえば畦際や凹凸のある田甫を
走行した際、根元部から内周方向へ折れ曲がり易
く、場合によつては根元部外周面からクラツクが
入つたり、或いは折れ曲がつたひれ状部が転輪や
機体に接触してひれ状部を損傷するという問題が
あり、また泥土を掻く際にもひれ状部が泥土の抵
抗によりその根元部から周方向に折曲し易く、根
元部側からのクラツク発生や牽引力の低下をきた
すという問題がある。 These fin-like parts themselves have the desired effect in muddy soil, but because they are made of an elastic material, for example, when driving over ridges or uneven fields, the fin-like parts can cause damage from the base to the inner circumferential direction. It is easy to bend, and in some cases, cracks may occur from the outer circumferential surface of the base, or the bent fin may come into contact with the wheels or the fuselage, damaging the fin. When scratching, the fins tend to bend in the circumferential direction from the base due to the resistance of the mud, causing problems such as cracks from the base and a decrease in traction force.
本考案の目的は上記欠点を排除し、高牽引効
率、長寿命の弾性無限軌道帯を提案することであ
つて、その特徴とするところは、帯状弾性無端本
体の外周面に適宜の間隔をおいて周方向に並列さ
れた接地ラグを形成し、上記ラグを無端本体の両
側方へ突出させてひれ状部を設けてなる弾性無限
軌道体に於て、ひれ状部の根元部を拡幅し補強し
た点にある。 The purpose of the present invention is to eliminate the above-mentioned drawbacks and to propose an elastic endless track band with high traction efficiency and long life. In an elastic endless track body in which grounding lugs are arranged in parallel in the circumferential direction, and fin-like parts are provided by protruding the lugs to both sides of an endless body, the base part of the fin-like part is widened and reinforced. That's what I did.
以下添附図面に従つて本考案を更に詳細に説明
する。 The present invention will be described in more detail below with reference to the accompanying drawings.
第1図は従来の泥地用弾性無限軌道帯を接地面
側から見た部分的平面図であつて、図中1はゴム
等の弾性材料から成る帯状弾性無端本体、2は前
記無端本体の外周側に形成された接地ラグ、3は
スプロケツトホイールと係合するスプロケツト孔
である。勿論、一般のクローラと同様にスプロケ
ツト孔3間には芯金が埋設され、また芯金の外周
側にワイヤーコード等の引張補強材が埋設されて
いる。図示のように、帯状弾性無端本体1の両側
端部のラグ間帯域には切欠部4が設けてあり、そ
れによつてラグ2の両端部にはひれ状部5が形成
され、このひれ状部は前述したように泥地帯走行
時に泥中にあつて泥土を掻くように作用し、ラグ
2間に泥詰りが生じた場合でも切欠部4の部分で
は泥捌が促進されるので、ひれ状部による泥掻作
用は定常的にもたらされ、それによつて牽引力も
常にもたらされる。 FIG. 1 is a partial plan view of a conventional elastic endless track belt for muddy terrain, viewed from the ground surface side, in which 1 is a belt-shaped elastic endless body made of an elastic material such as rubber, and 2 is the endless body. The grounding lug 3 formed on the outer circumferential side is a sprocket hole that engages with a sprocket wheel. Of course, like a general crawler, a core metal is buried between the sprocket holes 3, and a tensile reinforcing material such as a wire cord is buried on the outer circumferential side of the core metal. As shown in the figure, notches 4 are provided in the interlug zones at both ends of the band-shaped endless elastic body 1, whereby fin-like portions 5 are formed at both ends of the lug 2, and the fin-like portions As mentioned above, when driving in a muddy area, the fins act to scrape the mud when running in the mud, and even if mud gets clogged between the lugs 2, mud removal is facilitated at the notches 4, so the fin-like parts The mud-scraping action is constantly provided, and thereby the traction force is also constantly provided.
ひれ状部5は実質的にゴム材料のみから成り剛
性が低いために走行地面の状況に応じて屈曲変形
し易く、殊に畦際において先端部分が畦にかかつ
た場合とか、或いは凹凸の多い地面においてひれ
状部5が凸部に乗り上げた場合に、根元部のとこ
ろで軌道帯内周面方向へ大きく折曲し転輪や機体
との接触のおそれや根元部外周面のところからの
クラツク発生の可能性が高く、また同様に軌道帯
の周方向へも根元部のところで折曲しやすく、そ
のため根元部の側部からクラツクが発生すること
があると共に牽引力が低下する。 The fin-like portions 5 are substantially made only of rubber material and have low rigidity, so they are easily bent and deformed depending on the conditions of the running surface, especially when the tip portion touches the ridge, or when the surface is uneven. When the fin-shaped part 5 rides on a convex part on the ground, it may bend greatly at the base toward the inner circumferential surface of the track belt, causing a risk of contact with the wheels or the fuselage, or a crack occurring from the outer circumferential surface of the base. Similarly, the raceway band is also likely to bend in the circumferential direction at the base, which may cause cracks to occur from the sides of the base and reduce the traction force.
本考案はかかる点に鑑み、ひれ状部5の根元部
を補強することによつてその剛性を増大させ、走
行地面の状況に拘らずひれ状部の折曲を小さく抑
制し得るように構成したものであつて、その実施
例を第2図以下に示すが、何れもひれ状部5の根
元部、即ち接地ラグ2からひれ状部5への移行部
分を拡幅することを共通して示唆している。 In view of this, the present invention has been designed to increase the rigidity of the fins 5 by reinforcing their bases, thereby suppressing bending of the fins to a minimum regardless of the condition of the running surface. Examples of these are shown in FIG. 2 and below, but all of them commonly suggest that the root portion of the fin-like portion 5, that is, the transition portion from the grounding lug 2 to the fin-like portion 5, be widened. ing.
第2図はひれ状部5の根元部側面に断面弧状の
リブ6を設けた場合を示しており、この場合リブ
6の弧状断面形状は接地面から内周面方向へ向け
て漸進的に大きくなされ、ひれ状部の付け根の内
周面側部分の強度が殊更増大せしめられている。
第3図は弧状断面形状のリブの代りに台形のリブ
を設けた場合、第4図は三角錐状のリブ6をその
稜線がラグの接地頂面から本体1の縁部まで伸延
するように設けた場合を示す。第5図は第4図の
実施例の変化形を示しており、三角錐状のリブ6
の稜線はラグ側面の中腹から本体1の縁部まで伸
延している。 Fig. 2 shows a case where a rib 6 having an arcuate cross section is provided on the side surface of the base of the fin 5, and in this case, the arcuate cross-sectional shape of the rib 6 gradually increases from the ground contact surface toward the inner circumferential surface. The strength of the inner peripheral surface side portion of the base of the fin-like portion is particularly increased.
FIG. 3 shows a case in which a trapezoidal rib is provided instead of a rib with an arcuate cross-sectional shape, and FIG. This shows the case where it is provided. FIG. 5 shows a variation of the embodiment shown in FIG. 4, in which a triangular pyramid-shaped rib 6
The ridge line extends from the middle of the side surface of the lug to the edge of the main body 1.
第6図は第4図に示す三角錐状のリブの稜線部
分を面取りした場合、第7図はその変化形を示し
ている。 FIG. 6 shows a case where the ridgeline portion of the triangular pyramid-shaped rib shown in FIG. 4 is chamfered, and FIG. 7 shows a variation thereof.
第8図はひれ状部5の根元部を拡幅すると共
に、先端に向つて先細形状とした実施例を示して
おり、この場合にはひれ状部の剛性が増大すると
共に、相隣るひれ状部5の対向側面7が外側方へ
向つて拡開していることにより外側方への泥の押
し出し効果が得られ、また上記の側面7が地面に
対して比較的緩傾斜となるため泥の押し固め効果
が生じそれによつて軌道帯の沈下量が少くおさえ
られる。更に、上記の泥土押出効果については、
側面7の縁部の開き角度θが15〜30゜である場合
に最も好ましい結果が得られており、また隣接ひ
れ状部の先端部間の間隔をa、根元部における間
隔をb、突出長さをcとした場合、a≒c≒2b
なる関係寸法を与えたときに最も大きな補強効果
が得られることが判明している。 FIG. 8 shows an embodiment in which the base portion of the fin portion 5 is widened and tapered toward the tip. In this case, the rigidity of the fin portion is increased and the adjacent fin portions are The opposing side surfaces 7 of the portion 5 widen outward to provide the effect of pushing the mud outward, and the side surfaces 7 have a relatively gentle slope with respect to the ground, so the mud can be pushed out. A compaction effect occurs, thereby suppressing the amount of subsidence of the track belt. Furthermore, regarding the mud extrusion effect mentioned above,
The most favorable results have been obtained when the opening angle θ of the edge of the side surface 7 is 15 to 30 degrees, and the distance between the tips of adjacent fins is a, the distance at the base is b, and the protrusion length is If the distance is c, a≒c≒2b
It has been found that the greatest reinforcing effect can be obtained when the relationship dimensions are given as follows.
第9図乃至第12図はそれぞれ第2図、第3
図、第4図、第6図に示す実施例の改変形を示し
ており、何れもひれ状部5間からの排土性が向上
するように、接地ラグ2の幅寸法に比較してひれ
状部5の幅が小さくなされている。 9 to 12 are equivalent to FIGS. 2 and 3, respectively.
This shows a modified version of the embodiment shown in Figures 1, 4 and 6, in which the width of the fins 5 is made smaller than the width of the ground lug 2 so as to improve soil discharge from between the fins 5.
容易に理解され得るようにひれ状部5の根元部
を拡幅するためのリブ6の形態は図示したものの
みに止まらず、他の様々な変化形が適用可能であ
り、また場合によつては埋設芯金を根元部まで伸
延させることによつて拡幅部の作用に加えて更に
剛性を高めるようにしてもよい。 As can be easily understood, the shape of the rib 6 for widening the base portion of the fin-shaped portion 5 is not limited to the one shown in the drawings, and various other variations are applicable, and in some cases, In addition to the effect of the widened portion, the rigidity may be further increased by extending the embedded core bar to the root portion.
上記のように本考案によれば、ひれ状部の根元
部を拡幅しこれを補強することによりひれ状部の
剛性が増大し屈曲変形の度合が少くなり、その結
果根元部でのクラツクの発生が回避されると共に
剛直なひれ状部が高い牽引力をもたらし、かくし
て長寿命で高性能の弾性無限軌道帯が得られるも
のである。 As described above, according to the present invention, by widening and reinforcing the base of the fin, the rigidity of the fin increases and the degree of bending deformation is reduced, resulting in the occurrence of cracks at the base. In addition, the rigid fin-like portions provide a high traction force, and thus a long-life and high-performance elastic endless track belt is obtained.
第1図は従来の弾性無限軌道帯を外周面側から
見た部分的平面図、第2図〜第12図はそれぞれ
本考案の種々異る実施例を外周面から見た部分的
平面図である。尚、図示された主要部と符号との
対応関係は以下の通りである。
1……帯状弾性無端本体、2……接地ラグ、5
……ひれ状部。
Fig. 1 is a partial plan view of a conventional elastic endless track band viewed from the outer peripheral surface, and Figs. 2 to 12 are partial plan views of various embodiments of the present invention viewed from the outer peripheral surface. be. The correspondence relationship between the main parts shown and the symbols is as follows. 1... Band-shaped elastic endless body, 2... Grounding lug, 5
...fin-like part.
Claims (1)
て周方向に並列された接地ラグを形成し、上記ラ
グを無端本体の両側方へ突出させてひれ状部を設
けてなる弾性無限軌道帯に於て、ひれ状部の根元
部を拡幅し補強したことを特徴とする弾性無限軌
道帯。 An elastic endless track band is formed by forming grounding lugs arranged in parallel in the circumferential direction at appropriate intervals on the outer peripheral surface of a belt-shaped elastic endless body, and protruding the lugs to both sides of the endless body to provide fin-like parts. An elastic endless track belt characterized by widening and reinforcing the base of the fin-like part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5707081U JPS621027Y2 (en) | 1981-04-22 | 1981-04-22 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5707081U JPS621027Y2 (en) | 1981-04-22 | 1981-04-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57170385U JPS57170385U (en) | 1982-10-27 |
JPS621027Y2 true JPS621027Y2 (en) | 1987-01-10 |
Family
ID=29853554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5707081U Expired JPS621027Y2 (en) | 1981-04-22 | 1981-04-22 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS621027Y2 (en) |
-
1981
- 1981-04-22 JP JP5707081U patent/JPS621027Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS57170385U (en) | 1982-10-27 |
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