JP3413320B2 - Crawler rubber shoe - Google Patents
Crawler rubber shoeInfo
- Publication number
- JP3413320B2 JP3413320B2 JP03004096A JP3004096A JP3413320B2 JP 3413320 B2 JP3413320 B2 JP 3413320B2 JP 03004096 A JP03004096 A JP 03004096A JP 3004096 A JP3004096 A JP 3004096A JP 3413320 B2 JP3413320 B2 JP 3413320B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- rubber material
- link
- bolt
- rubber shoe
- 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 - Lifetime
Links
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、建設機械や土木作業用
機械の走行部に取り付けられる履帯ゴムシューに関する
ものである。
【０００２】
【従来の技術】建設機械や土木作業機械の走行部には、
従来より鉄シューが取り付けられていたが、近年これに
代って履帯ゴムシューが取り付けられるケースが多くな
ってきた。この履帯ゴムシューは、振動発生の低減と走
行路面を傷付けない等の特徴があり、帯状の芯金の少な
くとも外表面側にゴム材を加硫接着してなるものであっ
て、この芯金を走行部側のリンクにボルト止めされてな
るものである。
【０００３】図１は従来からある履帯ゴムシューの一例
を示す断面斜視図であり、芯金２１の外表面側即ち接地
側にのみゴム材２２を加硫接着する形状とされている。
そして、芯金２１の外表面側にグローサー２３が形成さ
れる場合には、ゴム材２２の厚さがグローサー２３に対
向する部位とこのグローサー２３が存在しない部位との
間で大きく異なっている。このため、履帯ゴムシューの
走行時にはゴム材２２に掛かる負荷が前記各部位で大き
く異なったものとなる。従って、グローサー２３に対応
する部位のゴム材２２はその厚さが薄いため早期に劣化
を生じ、ゴム欠けの発生が顕著であった。
【０００４】一方、図２にて示すように芯金２１の外表
面側にグローサーを形成しない履帯ゴムシューもある
が、リンクとの連結に供されるボルトの周囲のゴム欠け
や摩耗がしばしば発生し、このため、走行路面や鉱石等
とボルト頭が接触することとなって、ボルトの頭がつぶ
れてしまい、履帯ゴムシューの交換時等にリンクからこ
れを取り外すことができなくなるという欠点がある。
【０００５】
【発明が解決しようとする課題】本発明は上記したよう
な従来技術の現状に鑑みて開発されたものであって、リ
ンクとの連結に供されるボルトの頭の損傷を少なくし、
しかも芯金に加硫接着されたゴム材の寿命を向上させる
ことを目的とした履帯ゴムシューを提供するものであ
る。
【０００６】
【課題を解決するための手段】即ち、本発明の履帯ゴム
シューの構成は、芯金と、この外表面側に加硫接着した
ゴム材とよりなる履帯ゴムシューであって、芯金の左右
両側域の外表面側をフラット面とすると共に、芯金の中
央域の外表面側をリンク側へ後退させて当該中央域の内
表面を前記フラット面より内側に位置させてリンクとの
連結面とし、当該中央域の後退部位にボルト挿通孔を形
成し、かつこのボルト挿通孔を囲んでリンクとの連結に
供されるボルト頭よりも背丈の高いリブを形成したこと
を特徴とする。
【０００７】
【作用】本発明は機体の重量を支持し、走行に要する駆
動力を伝達する部位と、履帯ゴムシューをリンクへ取り
付ける部位とを機能分離して構成したものであり、前者
の機能を司るゴム材の劣化を極力防止し、ゴム材の寿命
を向上させるために好ましくは芯金との加硫接着面をフ
ラットな面としてゴム材に掛かる負担をできるだけ均一
化したものである。一方、後者の機能を司るリンクとの
連結面を前記フラット面よりも内側に位置させ、かつボ
ルトの頭を保護したものであり、芯金の中央域をリンク
側へ後退させ、この外表面側の後退部位にボルト挿通孔
を形成し、更にこの部位にボルト挿通孔を囲んでボルト
頭の高さよりも背丈の高いリブを形成したものである。
尚、本発明においてフラット面とはリブ等の突部が存在
しないということを意味するものであって、従って、外
表面全体が水平面のみでなく傾斜面とされていたり、或
いは段付き面とされることも含まれることは言うまでも
ない。
【０００８】そして、例えば中央域にゴムが加硫接着さ
れている場合には、リブ部におけるゴム材の厚さも厚
く、従って、ゴム材への負荷はほぼ均等化されるように
なり、このため、ゴム材の局所的な劣化やゴム欠け等の
発生を著しく低減されたものとなったものである。又、
リンクとの連結に供されるボルトにあっては、このボル
トの頭を囲んでリブを形成したため、ボルトの頭は走行
時に鉱石等に接触する程度は減少し、このため、ボルト
の頭のつぶれ等の発生は少なく、ソケットレンチ等で簡
単に取り外すことが可能で、履帯ゴムシューの交換もス
ムーズの行えることとなったものである。尚、ボルト挿
通孔を囲むリブは必ずしもボルト挿通孔の全周を囲む必
要はなく、ボルト頭が走行路面や鉱石等に接触しにくい
ようにリブが形成されていればよい。
【０００９】
【実施例】以下、本発明の履帯ゴムシューを実施例をも
って更に詳細に説明する。図３は本発明の履帯ゴムシュ
ーに用いられる芯金の具体例を示す斜視図、図４はその
外表面側正面図、図５はその中央部断面図である。図
中、１は芯金であり、その中央域２の内表面２ａが図示
しないリンクとの接触部である。ここにはリンクへの取
り付けに供されるボルト挿通孔３が穿孔されている。そ
して、ボルト挿通孔３をはさんで芯金１の左右両端に向
ってのびるリブ５、６が配置されている。尚、リブ５、
６は必ずしもボルト挿通孔３を完全に囲む形状とする必
要はなく、このリブ５、６は芯金１のリンクとの連結に
供されるボルトの頭の保護を主目的としたものである
が、芯金１の強度の向上ももたらされる。即ち、このリ
ブ５、６の存在によりボルト頭の保護がなされ、このた
め、ボルトの取り外しが確実になると共に強度の面から
も芯金１全体を薄くすることが可能となり、軽量化の要
請を満足するものである。
【００１０】芯金１の中央域２をはずれた左右域７、８
はリンクとの非接触部であって、この部位７、８がゴム
材にて囲まれることとなる。そして、この例では左右域
７、８の外表面側をフラットな面Ｐとしたものである。
このフラット面Ｐはここに加硫接着されるゴム材に対し
て重要な役割をなすもので、ゴム材に負荷を均等に配す
るためのものである。
【００１１】尚、左右域７、８に貫通孔が形成されるこ
ともあり、この貫通孔の存在により芯金１の軽量化と共
に内外に加硫接着されるゴム材がこの孔を通して合体し
てゴム材の脱落等が防止されることとなる。
【００１２】又、芯金１の左右端部には芯金１の厚みよ
りも大きな玉縁が形成されれば、芯金の表面積が増える
ことによるゴム材と芯金との接触性を向上すると共に、
芯金の左右端近傍のゴム材に応力が集中しないようにす
ることもでき、これによりゴム材の亀裂等が低減され履
帯ゴムシューの耐久性を向上させるのに効果がある。
尚、符号９は左右域７、８の内表面側に備えられた補助
リブである。
【００１３】さて、図にあっては芯金１は中央域２の外
表面側をリンク側へ後退させ、その内表面２ａを図示し
ないリンクとの連結面としたものであり、具体的には中
央域２の外表面が左右域７、８に対して段部Ｄをもって
形成された例である。この段部Ｄ内にリブ５、６を形成
したことによりボルト頭が保護されることとなる。
【００１４】図６〜図７は本発明の履帯ゴムシューであ
って、図６は前記した芯金１にゴム材を加硫接着させた
外表面側正面図であり、図７は別例の外表面正面図であ
る。図６における履帯ゴムシューは、図示したように芯
金１の中央域２にはリンクとの連結用に供されるボルト
１６の挿通孔３と、これを囲むリブ５、６が形成されて
はいるが、駆動力を伝えるゴム材はこの部位には存在せ
ず、このゴム材１３は芯金１の左右域７、８に分散され
て加硫接着されている。
【００１５】図をもって更に説明すると、芯金１の中央
域２は段部Ｄをもって形成され、この部位にボルト１６
の頭の高さｈ１よりもリブ５、６の高さｈ２のほうが高
く構成され、更にこのリブ５、６の高さよりもゴム材１
３の高さｈ３のほうが高い関係をもっている。このた
め、中央域２にはゴム材が存在しないものの外表面側よ
り後退（Ｄ）させてあるためにボルト１６の頭の保護が
なされることとなる。一方、芯金１の左右域７、８の外
表面側のフラット面Ｐに履帯ゴムシューの中心をなすゴ
ム材１３が分散して加硫接着されており、ゴム材１３に
負荷ができるだけ均一に掛るようにされている。
【００１６】尚、この例では芯金１の左右域７、８の内
表面側にゴム材１４がこれ又加硫接着されており、両ゴ
ム材１３、１４は芯金１の左右域７、８の縁部を囲んで
一体化されているが、更に芯金１の左右域７、８に貫通
孔（図示せず）が形成された場合には、この貫通孔を満
たすゴム材によって相互に連結されることとなる。
【００１７】図７は芯金１の接地面側全域をゴム材１３
にて覆う形態の一つである。即ち、リブ５、６が備えら
れた中央域２は段部Ｄをもって形成されるため、リブ
５、６の先端に形成されるゴム材１３の厚さも厚くな
り、ゴム材１３全体として耐久性に優れたものとなる。
芯金１の接地面側全域をゴム材１３にて覆った場合、履
帯ゴムシューの中央域のゴム厚（芯金１と接地側表面と
のゴムの厚さ）は、その耐久性を向上するために１０×
Ｗ０．５（ｍｍ）（Ｗは機体重量−ＴＯＮ）以上確保す
ることが好ましく、勿論、中央域の方が左右両側域より
もリンク側に窪みとなっているものである。
【００１８】以上、本発明の履帯ゴムシューを代表例を
もって説明したが、これに限定されるものでないことは
勿論であり、例えば複数の芯金を用い、これをゴム材に
て一体化し、複数のリンクに連結できるような履帯ゴム
シューに適用できることは言うまでもない。
【００１９】
【発明の効果】以上のように、本発明に係る履帯ゴムシ
ューは走行側のリンクへの連結機能と走行駆動力伝達機
能とを分離して構成したものであり、履帯ゴムシューの
寿命の向上と共にこの取り外し時に便ならしめたもので
ある。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crawler rubber shoe mounted on a traveling portion of a construction machine or a civil engineering machine. [0002] Traveling parts of construction machines and civil engineering machines include:
Conventionally, iron shoes have been attached, but in recent years, in many cases, crawler rubber shoes have been attached instead. This crawler belt rubber shoe has features such as reduction of vibration generation and damage to a traveling road surface, and is formed by vulcanizing and bonding a rubber material to at least the outer surface side of a belt-shaped core bar. It is bolted to the link on the part side. FIG. 1 is a cross-sectional perspective view showing an example of a conventional crawler belt rubber shoe, in which a rubber member 22 is vulcanized and bonded only to the outer surface side of a metal core 21, that is, the ground side.
When the grouser 23 is formed on the outer surface side of the metal core 21, the thickness of the rubber material 22 is greatly different between a portion facing the grocer 23 and a portion where the grocer 23 does not exist. For this reason, the load applied to the rubber member 22 during running of the crawler rubber shoe greatly differs in each of the above-described portions. Therefore, the rubber material 22 at the portion corresponding to the grouser 23 is deteriorated at an early stage due to its small thickness, and the occurrence of the rubber chipping is remarkable. On the other hand, as shown in FIG. 2, there is a crawler belt rubber shoe which does not form a grocer on the outer surface side of the cored bar 21, but rubber chipping and wear around bolts used for connection with a link often occur. As a result, the bolt head comes into contact with the traveling road surface, ore, or the like, and the head of the bolt is crushed, so that there is a disadvantage that the track head cannot be removed from the link at the time of replacement of the crawler rubber shoe or the like. SUMMARY OF THE INVENTION The present invention has been developed in view of the above-mentioned state of the art, and is intended to reduce damage to a head of a bolt used for connection with a link. ,
Moreover, the present invention provides a crawler belt rubber shoe for the purpose of improving the life of a rubber material vulcanized and bonded to a cored bar. That is, the crawler belt rubber shoe of the present invention is a crawler belt rubber shoe comprising a cored bar and a rubber material vulcanized and bonded to the outer surface side thereof. The outer surfaces of the left and right side regions are flat surfaces, and the outer surface of the central region of the metal core is retracted to the link side so that the inner surface of the central region is located inside the flat surface and connected to the link. A bolt insertion hole is formed in the recessed portion of the central region, and a rib surrounding the bolt insertion hole and having a height higher than a bolt head used for connection with a link is formed. According to the present invention, a portion for supporting the weight of the body and transmitting the driving force required for traveling and a portion for attaching the crawler rubber shoe to the link are separated from each other in function. In order to prevent deterioration of the rubber material to be controlled as much as possible and to prolong the life of the rubber material, the vulcanization bonding surface with the core metal is preferably made flat so that the load on the rubber material is made as uniform as possible. On the other hand, the connecting surface with the link that controls the latter function is located inside the flat surface and the head of the bolt is protected, and the central region of the core metal is retracted to the link side, and the outer surface side A bolt insertion hole is formed in the retreated portion, and a rib having a height higher than the height of the bolt head is formed around the bolt insertion hole in this portion.
In the present invention, the flat surface means that there are no protrusions such as ribs. Therefore, the entire outer surface is not only a horizontal surface but also an inclined surface or a stepped surface. Needless to say, this is also included. [0008] For example, when the rubber is vulcanized and bonded to the central region, the thickness of the rubber material at the rib portion is also large, so that the load on the rubber material is substantially equalized. In addition, the occurrence of local deterioration of the rubber material and the occurrence of chipping of the rubber have been significantly reduced. or,
In the case of a bolt used for connection with a link, a rib is formed around the head of the bolt, so that the degree of contact of the head of the bolt with ore or the like during traveling is reduced. It is possible to easily remove it with a socket wrench or the like, and to easily replace the crawler rubber shoe. Note that the rib surrounding the bolt insertion hole does not necessarily need to surround the entire circumference of the bolt insertion hole, and the rib may be formed so that the bolt head is unlikely to contact the traveling road surface or the ore. Hereinafter, the crawler belt rubber shoe of the present invention will be described in more detail with reference to examples. FIG. 3 is a perspective view showing a specific example of a metal core used for the crawler belt rubber shoe of the present invention, FIG. 4 is a front view of an outer surface side thereof, and FIG. In the figure, reference numeral 1 denotes a metal core, and an inner surface 2a of a central region 2 is a contact portion with a link (not shown). Here, a bolt insertion hole 3 for attachment to a link is formed. Then, ribs 5 and 6 extending toward both left and right ends of the metal core 1 with the bolt insertion hole 3 interposed therebetween are arranged. In addition, rib 5,
The rib 6 does not necessarily have to completely surround the bolt insertion hole 3, and the ribs 5 and 6 are mainly intended to protect the head of the bolt used for connecting the core bar 1 to the link. Also, the strength of the core metal 1 is improved. In other words, the presence of the ribs 5 and 6 protects the bolt head, so that the bolt can be securely removed and the entire core 1 can be made thinner in terms of strength. I am satisfied. Left and right regions 7, 8 deviating from central region 2 of cored bar 1.
Is a non-contact portion with the link, and these portions 7 and 8 are surrounded by a rubber material. In this example, the outer surfaces of the left and right regions 7 and 8 are flat surfaces P.
The flat surface P plays an important role for the rubber material to be vulcanized and adhered thereto, and is for evenly distributing a load to the rubber material. In some cases, through holes are formed in the left and right regions 7 and 8, and the presence of the through holes reduces the weight of the core bar 1 and the rubber material that is vulcanized and bonded inside and outside through the holes. The rubber material is prevented from falling off. Further, if a bead larger than the thickness of the metal core 1 is formed at the left and right ends of the metal core 1, the contact between the rubber material and the metal core is improved by increasing the surface area of the metal core. Along with
Stress can also be prevented from being concentrated on the rubber material near the left and right ends of the metal core, which is effective in reducing cracks and the like in the rubber material and improving the durability of the crawler rubber shoe.
Reference numeral 9 denotes an auxiliary rib provided on the inner surface side of the left and right regions 7 and 8. In the drawing, the core 1 has an outer surface side of the central area 2 retracted to the link side, and an inner surface 2a thereof serves as a connecting surface with a link (not shown). This is an example in which the outer surface of the central region 2 is formed with a step D with respect to the left and right regions 7 and 8. By forming the ribs 5 and 6 in the step portion D, the bolt head is protected. FIGS. 6 and 7 show a crawler belt rubber shoe according to the present invention. FIG. 6 is a front view of an outer surface side obtained by vulcanizing and bonding a rubber material to the above-mentioned cored bar 1, and FIG. It is a front view. In the crawler belt rubber shoe shown in FIG. 6, an insertion hole 3 for a bolt 16 used for connection with a link and ribs 5 and 6 surrounding the same are formed in a central area 2 of a cored bar 1 as shown in the figure. However, the rubber material for transmitting the driving force does not exist in this portion, and the rubber material 13 is dispersed and bonded to the right and left regions 7 and 8 of the metal core 1 by vulcanization. To further explain with reference to the drawings, the central region 2 of the cored bar 1 is formed with a step D, and a bolt 16
Than the height h 1 of the head is configured higher towards the height h 2 of the ribs 5 and 6, further rubber material than the height of the ribs 5 and 6 1
The height h3 of 3 has a higher relationship. For this reason, although the rubber material does not exist in the central region 2, it is retracted (D) from the outer surface side, so that the head of the bolt 16 is protected. On the other hand, the rubber material 13 forming the center of the crawler rubber shoe is dispersed and vulcanized and bonded to the flat surface P on the outer surface side of the left and right regions 7 and 8 of the cored bar 1 so that the load is applied to the rubber material 13 as uniformly as possible. It has been like that. In this embodiment, a rubber material 14 is also vulcanized and bonded to the inner surfaces of the left and right regions 7 and 8 of the metal core 1, and both rubber materials 13 and 14 are attached to the left and right regions 7 and 8 of the metal core 1. 8 are integrated with each other around the edge of the metal core 1. However, when a through hole (not shown) is formed in the left and right regions 7, 8 of the cored bar 1, a rubber material filling the through hole is used for mutual connection. Will be linked. FIG. 7 shows that the entire area of the grounding surface side of the metal core 1 is made of rubber material 13.
It is one of the forms to cover. That is, since the central region 2 provided with the ribs 5 and 6 is formed with the step D, the thickness of the rubber material 13 formed at the tips of the ribs 5 and 6 is also increased, and the rubber material 13 as a whole has durability. It will be excellent.
When the entire area of the grounding surface side of the metal core 1 is covered with the rubber material 13, the rubber thickness (the thickness of the rubber between the metal core 1 and the grounding surface) in the central area of the crawler rubber shoe is to improve its durability. 10x
It is preferable to secure W 0.5 (mm) (W is the body weight-TON) or more. Needless to say, the central area is more concave on the link side than the left and right side areas. Although the crawler belt rubber shoe of the present invention has been described above with reference to a typical example, it is a matter of course that the present invention is not limited to this. It goes without saying that the present invention can be applied to a crawler rubber shoe that can be connected to a link. As described above, the crawler rubber shoe according to the present invention is configured such that the function of connecting to the link on the traveling side and the function of transmitting the traveling driving force are separated, and the life of the crawler rubber shoe is reduced. It is the one that is convenient for this removal with the improvement.
【図面の簡単な説明】
【図１】図１は従来の履帯ゴムシューの一例を示す断面
斜視図である。
【図２】図２は従来の履帯ゴムシューの他の例を示す断
面斜視図である。
【図３】図３は本発明の履帯ゴムシューに用いる芯金の
一例を示す斜視図である。
【図４】図４は図３の芯金の外表面側正面図である。
【図５】図５は図３の芯金の中央断面図である。
【図６】図６は本発明の履帯ゴムシューの外表面側正面
図である。
【図７】図７は本発明の履帯ゴムシューの別例の外表面
側正面図である。
【符号の説明】
１‥‥芯金、２‥‥芯金１の中央域、２ａ‥‥芯金１の
中央域２の内表面、３‥‥ボルト挿通孔、５、６‥‥ボ
ルト挿通孔３をはさむリブ、７、８‥‥芯金１の左右
域、１３‥‥芯金１の外表面側ゴム材、１４‥‥芯金１
の内表面側ゴム材、１６‥‥ボルト、Ｄ‥‥段部、Ｐ‥
‥芯金１の左右域７、８のフラット面、ｈ１‥‥ボルト
頭部の高さ、ｈ２‥‥リブ５、６の高さ、ｈ３‥‥ゴム
材１３の厚さ。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional perspective view showing an example of a conventional crawler belt rubber shoe. FIG. 2 is a sectional perspective view showing another example of a conventional crawler belt rubber shoe. FIG. 3 is a perspective view showing an example of a metal core used for the crawler belt rubber shoe of the present invention. FIG. 4 is a front view of an outer surface side of the metal core of FIG. 3; FIG. 5 is a central sectional view of the metal core of FIG. 3; FIG. 6 is a front view on the outer surface side of the crawler belt rubber shoe of the present invention. FIG. 7 is a front view of the outer surface side of another example of the crawler belt rubber shoe of the present invention. [Description of Signs] 1 core metal, 2 central area of metal core 1, 2a inner surface of central area 2 of metal core 1, 3 bolt insertion hole, 5 6 bolt insertion hole Ribs sandwiching 3; 7 and 8 ‥‥ left and right areas of core 1; 13 ‥‥ core 1 outer rubber material; 14 ‥‥ core 1
Inner surface side rubber material, 16mm bolt, Dm step, Pm
‥ flat surfaces of the right and left regions 7 of the core 1, h 1 ‥‥ bolt head height, the height of h 2 ‥‥ ribs 5,6, thickness of h 3 ‥‥ rubber material 13.
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B62D 55/20 Continuation of the front page (58) Field surveyed (Int.Cl. 7 , DB name) B62D 55/20
Claims (1)
ム材とよりなる履帯ゴムシューであって、芯金の左右両
側域の外表面側をフラット面とすると共に、芯金の中央
域の外表面側をリンク側へ後退させて当該中央域の内表
面を前記フラット面より内側に位置させてリンクとの連
結面とし、当該中央域の後退部位にボルト挿通孔を形成
し、かつこのボルト挿通孔を囲んでリンクとの連結に供
されるボルト頭よりも背丈の高いリブを形成したことを
特徴とする履帯ゴムシュー。(1) A crawler belt rubber shoe comprising a cored bar and a rubber material which is vulcanized and bonded to the outer surface of the cored bar. Surface, and the outer surface side of the central region of the metal core is retracted to the link side, and the inner surface of the central region is located inside the flat surface to be a connecting surface with the link, and the central region is a retreat portion. A crawler belt rubber shoe having a bolt insertion hole formed therein and a rib surrounding the bolt insertion hole and having a height higher than a bolt head used for connection with a link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03004096A JP3413320B2 (en) | 1995-01-24 | 1996-01-23 | Crawler rubber shoe |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2755995 | 1995-01-24 | ||
| JP7-27559 | 1996-01-08 | ||
| JP8-18148 | 1996-01-08 | ||
| JP1814896 | 1996-01-08 | ||
| JP03004096A JP3413320B2 (en) | 1995-01-24 | 1996-01-23 | Crawler rubber shoe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09249161A JPH09249161A (en) | 1997-09-22 |
| JP3413320B2 true JP3413320B2 (en) | 2003-06-03 |
Family
ID=27282104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03004096A Expired - Lifetime JP3413320B2 (en) | 1995-01-24 | 1996-01-23 | Crawler rubber shoe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3413320B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016000574A (en) * | 2014-06-11 | 2016-01-07 | 株式会社ブリヂストン | Crawler pad |
| JP6568767B2 (en) | 2015-10-26 | 2019-08-28 | 株式会社ブリヂストン | Crawler shoe metal core, elastic crawler shoe, and method for manufacturing crawler shoe metal |
-
1996
- 1996-01-23 JP JP03004096A patent/JP3413320B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09249161A (en) | 1997-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4185877A (en) | Shoe for crawler belt | |
| US6213573B1 (en) | Rubber pads | |
| JP3413320B2 (en) | Crawler rubber shoe | |
| JPH11286284A (en) | Detachable pad | |
| US20010009336A1 (en) | Elastic crawler shoe | |
| JPH07291159A (en) | Rubber pad for crawler belt for crawler type vehicle | |
| JP3159379B2 (en) | Crawler rubber shoe and core metal | |
| JPH1016837A (en) | Elastic shoe for crawler | |
| JP2951247B2 (en) | Crawler shoe | |
| KR101818732B1 (en) | Crawler pad with improved durability | |
| JP4219482B2 (en) | Crawler rubber shoe | |
| JPH07257449A (en) | Crawler belt rubber shoe | |
| JP4284640B2 (en) | Vinyl chloride resin pad and method for recycling vinyl chloride resin pad | |
| JP3457608B2 (en) | Crawler shoe | |
| JP3273421B2 (en) | Crawler rubber shoe | |
| JP2595443Y2 (en) | Endless track belt | |
| JP4071851B2 (en) | Elastic shoe for crawler | |
| JP3457606B2 (en) | Crawler shoe | |
| JP3352391B2 (en) | Elastic pads and crawlers | |
| JP2606785Y2 (en) | Elastic track plate for endless track belt | |
| JP3956020B2 (en) | Elastic pads for footwear | |
| JPH0715831Y2 (en) | Crawler shoe | |
| JP3457607B2 (en) | Crawler shoe | |
| JP4803221B2 (en) | Tracks of endless track vehicles | |
| JPH082456A (en) | Elastic pad for track shoe of metallic crawler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080328 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090328 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090328 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100328 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100328 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110328 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110328 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120328 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120328 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130328 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130328 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140328 Year of fee payment: 11 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |