JPS59118580A - Rubber crawler - Google Patents

Abstract

PURPOSE:To improve the moving performance of a crawler on a paddy field, by providing main and auxiliary protrusions in prescribed positions alternately or at a prescribed interval in the tread of the crawler and setting the heights of the central and side portions of the main projection in a prescribed relationship with each other. CONSTITUTION:Metal cores 10 are embedded in the body of a crawler in such a manner that the cores are juxtaposed. Tensile strength increasing members 11 are embedded outside the metal cores 10. The crawler body comprises a central part 12 embedded with the metal cores 10, and side parts 13 bent toward the tread made of main protrusions 14 extending from the central part 12 of the crawler to its side edges, and auxiliary protrusions 15 extending only along the central part 12. These protrusions 14, 15 correspond to the metal cores 10 and are integrated with the crawler body and located alternately or at a prescribed interval. The height h1 of the main protrusion 14 at the central part 12 of the crawler and that h2 at the side part 13 of the crawler are set as h2>=h1.

Description

【発明の詳細な説明】 〔発明の技術分野〕。[Detailed description of the invention] [Technical field of invention].

本発明はＩＩ！！業用ゴムクローラの改良に係り、特に
湿田用に好適なゴムクローラに関する。The present invention is II! ! The present invention relates to improvements in industrial rubber crawlers, and particularly to rubber crawlers suitable for use in wet fields.

（従来技術） いわゆるゴムクローラの湿田性（湿田での走行性能）を
向上するために各種の改良が試みられているが、いまま
でに完全なゴムクローラはない。(Prior Art) Various improvements have been attempted to improve the wet paddy performance (driving performance in wet paddy fields) of so-called rubber crawlers, but to date there has been no perfect rubber crawler.

湿田性を向上させたものとしでは、第１図に示すように
クローラ側部Ｂ、Ｂを接地側と反対の方向に曲げたいわ
ゆるｆｉｌｌ型クローラが提案されている。In order to improve wet field performance, a so-called fill-type crawler has been proposed in which the crawler side portions B, B are bent in the direction opposite to the ground contact side, as shown in FIG.

これは走行時に夕日−ラの下の泥を左右に押し出して（
矢印ａ−ａ　′）走行するもので、走行性は極めて優れ
ているが、圃場に泥の盛り上げＳを残すという欠点があ
った。第１図中符号１は芯金、２はラグ、３は引張補強
材である。This pushes the mud under the sunset to the left and right when driving (
Although it has extremely good running performance, it has the disadvantage that it leaves mounds of mud S in the field. In FIG. 1, reference numeral 1 is a core bar, 2 is a lug, and 3 is a tensile reinforcing material.

〔発明の目的〕[Purpose of the invention]

本発明は、これらの欠点を解決し、更に湿田性を向上さ
せたゴムクローラを提供するもことを目的とするもので
ある。The present invention aims to solve these drawbacks and provide a rubber crawler with improved wet field properties.

（発明の構成） 本発明は上記目的を達成するため、クローラ本体中に長
手方向に横並べした芯金及びこれを外周側から取り囲む
引張補強材とを埋入したゴムクローラであって、前記芯
金を埋入したクローラ中央部と、この両側に連続するク
ローラ側部とよりなり、該クローラ側部を接地面側に向
けて折り曲げてなるゴムクローラにおいて、接地面には
前記芯金に略対応してクローラ中央部より幅端に達する
主ラグと略クローラ中央部のみにわたる副ラグとを交互
或いは所望ピッチおきに配設し、前記主ラグの中央部の
高さｈｌと側部の高さ１１２とを１１２≧１１１なる関
係としたものである。(Structure of the Invention) In order to achieve the above object, the present invention provides a rubber crawler in which core metals arranged horizontally in the longitudinal direction and a tensile reinforcing material surrounding the core metals from the outer peripheral side are embedded in the crawler body, A rubber crawler consisting of a central part of the crawler filled with gold and continuous crawler side parts on both sides of the crawler, with the crawler side parts bent toward the ground plane.The ground plane roughly corresponds to the core metal. Main lugs that reach the width end from the center of the crawler and sub-lugs that extend almost only to the center of the crawler are arranged alternately or at desired pitches, and the height of the center of the main lug is hl and the height of the side is 112. The relationship is 112≧111.

〔発明の実施例〕[Embodiments of the invention]

以下図面に基づいて更に詳述する。 A more detailed explanation will be given below based on the drawings.

第２図は、本発明の主便部を示ずクローラの幅方向の断
面図であって、第３図は、その接地面側の平面図である
。１０は芯金であって、クローラ本体中に横並べした状
態で埋入されている。そしてこの芯金１０を外周側から
取り囲んでスチールコード等にて代表される引張補強材
１１が埋入されている。そして、クローラは、芯金１０
が埋入されているクローラ中央部１２と、クローラ側部
１３とよりなり、このクローラ側部１３は接地面側に向
【ノて折り曲げ°Ｃ形成される。即ち、クローラ中央部
１２の接地面１２′よりもクローラ側部１３の接地面１
３′の方がＪ：り外側に膨出しているものである。接地
面には芯金１０に対応してクローラ中央部１２にりその
幅端に達する主ラグ１４と、略クローラ中央部１２のみ
にわたる副ラグ１５とがクローラ本体と一体に形成され
、これらが交互に或いは所望ピッチおきに配設されてい
るものであり、第３図においては主ラグ１４と副ラグ１
５とが交互に配設されている。そして、この主ラグ１４
においては、クローラ中央部１２におけるラグ１４の高
さｈｌとそのりＯ−ラ側部１３の高さｈ２どの関係を１
１２≧ｈ１なる関係としたものである。図中１６はスプ
ロケット係合孔である。FIG. 2 is a cross-sectional view of the crawler in the width direction without showing the main stool portion of the present invention, and FIG. 3 is a plan view of the ground-contact surface side thereof. Numeral 10 is a core metal, which is embedded in the crawler body in a horizontally arranged manner. A tensile reinforcing material 11 typified by a steel cord or the like is embedded surrounding the core metal 10 from the outer circumferential side. And the crawler has core metal 10
It consists of a crawler central part 12 in which a rubber is embedded, and a crawler side part 13, and this crawler side part 13 is bent toward the ground surface side. That is, the ground plane 1 of the crawler side part 13 is smaller than the ground plane 12' of the crawler central part 12.
3' is more bulged outward than J. On the ground surface, a main lug 14 corresponding to the core bar 10 and reaching the width end of the crawler center part 12, and a sub-lug 15 extending approximately only to the crawler center part 12 are formed integrally with the crawler body, and these are alternately arranged. or at desired pitches, and in FIG. 3, the main lug 14 and the sub lug 1
5 are arranged alternately. And this main lug 14
, the relationship between the height hl of the lug 14 at the crawler center part 12 and the height h2 of the O-La side part 13 is 1.
The relationship is 12≧h1. In the figure, 16 is a sprocket engagement hole.

かかる本発明によれば、クローラ側部１３が接地面側に
向けて折り曲げであるために走行時にクローラの下の泥
を左右に押し出すこ−となく接地面１２′及びＢによっ
て泥を下へ抱きかかえるごとき作用をなすため、第１図
に示すような泥の盛り上げＳは生じないものである。従
って、旋回時においてもクローラ自体が沈下していない
ので圃場を荒しにクク、未刈取りの稲に土をよせでしま
う不具合もなくなり、稲をたおしてしまうこともなくな
る。このことは刈取時にいちいち稲を起こさなければな
らないという面倒も全くなくなる。According to the present invention, since the crawler side portion 13 is bent toward the ground surface, the mud under the crawler is not pushed out to the left or right during running, but is held downward by the ground surfaces 12' and B. Because of this action, the mud buildup S shown in FIG. 1 does not occur. Therefore, even when turning, the crawler itself does not sink, so there is no problem of destroying the field or pushing soil onto unharvested rice, and there is no chance of knocking over the rice. This eliminates the hassle of having to wake up the rice plants every time they are harvested.

更に、接地面に形成り−るラグを前記したような主ラグ
１４と副ラグ１５とに構成したため、機体の振動を低下
りることなく推進力を効果的に発現しかつ泥の巻き上げ
も最小限としたものである。Furthermore, since the lugs formed on the ground contact surface are composed of the main lug 14 and the sub-lug 15 as described above, the propulsion force is effectively expressed without reducing the vibration of the aircraft, and mud kick-up is also minimized. That is.

即ち、隣り合う主ラグ１４のクローラ側部１３における
間隔を広くとったのでこの間の泥の剥離が十分になされ
、泥の巻き上げが生ずることなく、従ってラグの接地時
には泥の１１着のないラグとなるために所定の推進力が
確保されることになる。That is, since the distance between the adjacent main lugs 14 on the crawler side 13 is wide, the mud between them is sufficiently separated, and no mud is kicked up. Therefore, when the lugs touch the ground, the lugs are free of mud. In order to achieve this, a predetermined propulsion force is secured.

更に特徴的には主ラグ１４の高さを上記のように限定し
たため、主ラグ１４の全長にわたって力が略同−化して
泥をかくことになり全体としてスムーズに走行すること
ができ、主ラグ１４の部分的破損も極めて少なくなった
ものである。そしてかかる限定は又Ｈｔ進力を保障する
ラグ１４の高−さが高いことにより、あたかもボートの
オールのような働きをなし、この点でも推進力が著しく
すぐれているものである。Furthermore, since the height of the main lug 14 is limited as mentioned above, the force is almost uniform over the entire length of the main lug 14, and the mud is scraped, making it possible to run smoothly as a whole. Partial breakage of No. 14 has also been extremely reduced. Furthermore, due to the high height of the lugs 14 which ensure the Ht propulsion force, the lugs 14 act like oars on a boat, and in this respect as well, the propulsion force is extremely superior.

第４図は副ラグ１５を２つ並べ１＝構造であり、主ラグ
１４・１４の間隔が広くとれるので泥の離脱が特に効果
的に行なわれるものであり、第５図のそれは主ラグ１４
のクローラ側部１３に対応する部分をやや後退さけて走
行安定度を高めたものである。第６図は主ラグ１４にお
いて一側のみをクローラの幅端にまで形成したものであ
る。Fig. 4 shows a structure in which two sub-lugs 15 are arranged side by side, and the spacing between the main lugs 14 is wide, so mud can be removed particularly effectively.
The part corresponding to the crawler side part 13 is slightly set back to improve running stability. In FIG. 6, only one side of the main lug 14 is formed up to the width end of the crawler.

〔発明の効果〕〔Effect of the invention〕

本発明は以上のように泥を抱きかかえるように走行する
ため泥の盛り上りはなく、かつＩＶ進力をもたらす主ラ
グ間に泥づまり心なく、更には主ラグの高さを特定条件
に規定したｌこめ主ラグの全長にわたって力が略均−化
されるためスムーズに走行し、主ラグの部分的破損も極
めて少なくなる等の著しい特徴を有する。As described above, the present invention runs while hugging the mud, so there is no mud build-up, and there is no possibility of mud clogging between the main lugs that provide IV propulsion, and furthermore, the height of the main lugs is specified under specific conditions. Since the force is approximately equalized over the entire length of the main lug, it runs smoothly and has remarkable features such as very little chance of partial breakage of the main lug.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のクローラの横断面図、第２図は本発明の
クローラの横断面図、第３図は第２図に示す本発明のク
ローラの接地面側の平面図、第４図、第５図、第６図は
第３図と同様の本発明のりＯ−ラの接地面側の平面図で
ある。 １０・・・・・・芯金、 １１・・・・・・引張補強材、 １２・・・・・・クローラ中央部、 １３・・・・・・クローラ側部、 １４・・・・・・主ラグ、 １５・・・・・・副ラグ。 出願人　ブリデストンタイヤ株式会礼 代理人　弁理士　増　１）竹　夫 第４図 ４２″ 第５図FIG. 1 is a cross-sectional view of a conventional crawler, FIG. 2 is a cross-sectional view of a crawler of the present invention, FIG. 3 is a plan view of the ground plane side of the crawler of the present invention shown in FIG. 2, and FIG. 5 and 6 are plan views of the contact surface side of the glue roller of the present invention similar to FIG. 3. 10...Core metal, 11...Tensile reinforcing material, 12...Crawler center part, 13...Crawler side part, 14... Main lug, 15...Sub-lug. Applicant Brideston Tire Co., Ltd. Representative Patent Attorney Masu 1) Takeo Figure 4 42'' Figure 5

Claims (1)

【特許請求の範囲】 １、クローラ本体中に長手方向に横並べした芯金及びこ
の芯金を外周側から取り囲む引張補強材とを埋入したゴ
ムクローラであって、前記芯金を埋入したクローラ中央
部と、この両側に連続するクローラ側部とよりなり、該
りＯ−ラ側部を接地面側に向けて折り曲げてなるゴムク
ローラにＪ３いて、 接地面には前記芯金に略対応してクローラ中央部より幅
端に達する主ラグと略クローラ中央部のみにわたる副ラ
グとを交互或いは所望ピッチＪ３さに配設し、 前記主ラグの中央部の高さハ１と側部の高さｈ２とをｈ
２≧１１１なる関係としたことを特徴とするゴムクロー
ラ。[Claims] 1. A rubber crawler in which a core bar arranged horizontally in the longitudinal direction and a tensile reinforcing material surrounding the core bar from the outer peripheral side are embedded in a crawler body, the core bar being embedded in the crawler body. J3 is a rubber crawler consisting of a crawler center part and crawler side parts continuous to both sides, and the O-roller side parts are bent toward the ground plane side, and the ground plane roughly corresponds to the core metal. Main lugs that reach the width end from the center of the crawler and sub-lugs that extend approximately only to the center of the crawler are arranged alternately or at a desired pitch J3, and the height of the center of the main lug is equal to the height of the side. h2 and h
A rubber crawler characterized by having a relationship of 2≧111.