JPH10138965A - Pad for crawler belt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease the damage of corner parts on both ends in the longitudinal direction of a rubber pad by dividing a reinforcing member in the width direction into two parts, integrally forming a side part for supporting one side suffice in the width direction of an elastic member and small bottom parts for longitudinal attaching bolts, and positioning both outer ends in the longitudinal direction inward from both ends of the elastic member. SOLUTION: A reinforcing member 1 is divided in the width direction into two parts and made independent from each other, respective reinforcing members (a), (b) are formed into an approximately U shape by integrating side parts 1a, 1b for supporting respective reinforcing members (a), (b) by respective side surfaces in the width direction of a rubber pad 5 of an elastic member with small bottom parts 2a, 2a', 2b, 2b' on parts for supporting attaching bolts on a bottom surface to be brought in contact with the tread of a caterpillar plate, the reinforcing member 1 is formed into a size shorter than that of the rubber pad 5, and both ends in the longitudinal direction are positioned inward from both ends in the longitudinal direction of the rubber pad 5. Therefore, the rubber pad 5 is mostly brought in contact with the tread of the caterpillar plate, the free end is increased, the rubber pad 5 is easily and elastically deformed to disperse load even if it receives impact load, and therefore, damage of the corner parts can be restrained to the minimum extent.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、無限軌道車両に用いら
れる履帯用パッドの構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a track pad used in a tracked vehicle.

【０００２】[0002]

【従来の技術】履帯用パッドの構造は、最近、補強部材
を、ゴムパッド内部に設けるタイプより、ゴムパッドの
履板踏面側に、それも、履板の踏面側全面に設けたタイ
プが多い。（例えば、実開平６−７４５９４号公報参
照） この履帯用ゴムパッドＢは、図４に示すごとく、ゴムパ
ッド２５の底面全面に補強部材２２を設けるタイプであ
って、補強部材２２は、履板の中央突条を有する踏面に
密接するＷ型で２つの谷底部２２ａを有する形状となっ
ていて、ゴムパッド２５の下部２５ａは、丁度、箱型内
にパッドを収容した構造となり、下部２５ａのパッド
は、補強部材に囲まれたこの箱内で固く固定されてい
る。2. Description of the Related Art Recently, there are many types of crawler belt pads in which a reinforcing member is provided on the tread surface side of a rubber pad and also on the entire tread surface side of a crawler plate, rather than a type in which a reinforcing member is provided inside a rubber pad. As shown in FIG. 4, the crawler belt rubber pad B is of a type in which a reinforcing member 22 is provided on the entire bottom surface of the rubber pad 25, and the reinforcing member 22 is provided at the center of the crawler board. It is W-shaped and has a shape having two valley bottoms 22a that are in close contact with the tread surface having the ridge, and the lower portion 25a of the rubber pad 25 has a structure in which the pad is housed in a box shape, and the pad of the lower portion 25a is It is firmly fixed in this box surrounded by reinforcing members.

【０００３】[0003]

【発明が解決しようとする課題】しかし、このタイプの
履帯用パッドは、補強部材から突出したゴムパッドの厚
さが薄いため走行時に集中荷重を受け破損しやすかっ
た。特に、取付けボルト２３上方のゴムパッド２５、即
ち、長手方向両端のコーナー部Ｐは、ボルト２３の六角
ヘッドの厚み分、ゴムパッドの厚みが、他より少なく集
中荷重を受け、破損が激しかった。ゴムパッドの厚みだ
けでなく、ゴムパッドの補強部材側の下部２５ａは、補
強部材２２で略四周を覆われたような構造になっている
ので、剛性を有し、ゴム本来の弾性機能が十分発揮でき
ないという問題があった。However, in this type of crawler belt pad, the rubber pad protruding from the reinforcing member is so thin that it is easily damaged by a concentrated load during traveling. In particular, the rubber pad 25 above the mounting bolts 23, that is, the corners P at both ends in the longitudinal direction, received a concentrated load with a thickness of the hexagonal head of the bolt 23 smaller than that of the other rubber pads, and were severely damaged. In addition to the thickness of the rubber pad, the lower portion 25a of the rubber pad on the reinforcing member side has a structure in which the reinforcing member 22 covers substantially four circumferences, so that it has rigidity and cannot sufficiently exhibit the original elastic function of rubber. There was a problem.

【０００４】本発明は、従来のこのような問題点に鑑み
なされたものであり、その目的とするところは、従来の
構成を若干改良して、ゴムパッドの破損、特にゴムパッ
ドの長手方向両端のコーナー部の破損を減らす履帯用パ
ッドを提供しようとするものである。SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and an object of the present invention is to slightly improve the conventional structure so as to damage the rubber pad, in particular, the corners at both ends in the longitudinal direction of the rubber pad. It is an object of the present invention to provide a crawler pad for reducing breakage of a part.

【０００５】[0005]

【課題を解決するための手段】上記目的を達成するため
に、本発明における履帯用パッドは、踏面を形成する弾
性部材と、弾性部材を支持する補強部材と、補強部材の
裏面にヘッドを溶接し履板側に突出した取付けボルトと
よりなる中央突条を有する履板の踏面に装着する履帯用
パッドにおいて、補強部材は、幅方向に二分割して互い
に独立させ、各補強部材は、弾性部材の幅方向の一側面
を支持する側部と、長手方向の取り付けボルトを支持す
る部位の両小底部とを一体にした略コ字状に形成し、各
小底部と側部の長手方向両外端部は弾性部材の両端部よ
り内方に位置し、その他の部位は弾性部材を露出させ
た。To achieve the above object, a crawler belt pad according to the present invention comprises an elastic member forming a tread surface, a reinforcing member supporting the elastic member, and a head welded to the back surface of the reinforcing member. In a crawler belt pad to be mounted on a tread surface of a track plate having a central ridge formed by mounting bolts protruding toward a track plate side, a reinforcing member is divided into two in a width direction to be independent from each other, and each reinforcing member is elastic. A side portion supporting one side in the width direction of the member and both small bottom portions of a portion supporting the mounting bolts in the longitudinal direction are formed in a substantially U-shape integrally, and both small bottom portions and the side portions in the longitudinal direction are formed. The outer end was located inward from both ends of the elastic member, and the other portions exposed the elastic member.

【０００６】[0006]

【作用】ゴムパッドに衝撃荷重が加わった場合、ゴムパ
ッドの補強部材側は、従来より露出し弾性変形がより容
易となる。When a shock load is applied to the rubber pad, the reinforcing member side of the rubber pad is more exposed than before, and elastic deformation becomes easier.

【０００７】[0007]

【実施例】以下、本発明の第一実施例を図１乃至図３を
用いて説明する。この履帯用パッドＡは、中央突条を有
する履板に取り付けるタイプのものである。履帯用パッ
ドＡは、踏面を形成する弾性部材であるゴムパッド５
と、ゴムパッド５の下面を支持する補強部材１と、履板
に固定する取付けボルト７とで構成される。ゴムパッド
５は、履板の長手方向の幅一杯に形成され、底面は履板
の中央突条を有する踏面の形状にあった断面略Ｗ型に形
成されている。上面の踏面は、各角部をカットして鋭利
にならないようしてある。補強部材１は、履帯用パッド
の幅方向を二分割して、互いに独立させてある。各補強
部材ａ、ｂは、弾性部材であるゴムパッド５の幅方向の
各側面にて、ゴムパッド５を支持する側部１ａ、１ｂ
と、履板の踏面に当接する底面のうち、取付けボルトを
支持する部位の小底部２ａ、２ａ′、２ｂ、２ｂ′とを
一体にした補強部材１の展開図が対設した略コの字状で
あり、側部１ａ、１ｂと小底部２ａ、２ａ′、２ｂ、２
ｂ′とは、履板の踏面に沿う形状に折曲している。更
に、側部１ａ、１ｂと小底部２ａ、２ａ′、２ｂ、２
ｂ′の長手方向の両端は、ゴムパッド５の長手方向両端
より内方に位置し、補強部材１はゴムパッド５より短尺
に形成されている。一対の補強部材ａ、ｂは、互いに独
立であるが、補強部材ａ、ｂとゴムパッド５は加硫にて
一体結合されている。各補強部材の底部の裏面には、取
付けボルトのヘッドが溶接され、履帯側にねじ部が突出
している。補強部材の底部と側部とで、ゴムパッド５全
体を支持し、底部は取付けボルトを支持するに十分な強
度を持っている。補強部材のない部位は、ゴムパッド５
が露出している。尚、 ８はリンク取付けボルトの取付
け用凹部である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. The crawler belt pad A is of a type attached to a crawler plate having a central ridge. The crawler belt pad A is a rubber pad 5 which is an elastic member forming a tread surface.
And a reinforcing member 1 that supports the lower surface of the rubber pad 5 and mounting bolts 7 that are fixed to a shoe plate. The rubber pad 5 is formed so as to have a full width in the longitudinal direction of the crawler board, and a bottom surface thereof is formed in a substantially W-shaped cross section in a shape of a tread having a central ridge of the crawler board. The tread on the upper surface is cut at each corner so as not to be sharp. The reinforcing member 1 divides the width direction of the crawler belt pad into two and is independent of each other. Reinforcing members a and b are side portions 1a and 1b that support rubber pad 5 on respective side surfaces in the width direction of rubber pad 5 that is an elastic member.
And an expanded view of a reinforcing member 1 in which a small bottom portion 2a, 2a ', 2b, 2b' of a portion for supporting a mounting bolt of a bottom surface which abuts on a tread surface of a footwear plate is opposed to each other. And sides 1a, 1b and small bottoms 2a, 2a ', 2b, 2
b ′ is bent in a shape along the tread surface of the crawler plate. Further, the side portions 1a, 1b and the small bottom portions 2a, 2a ', 2b, 2
Both ends in the longitudinal direction of b ′ are located inward from both ends in the longitudinal direction of the rubber pad 5, and the reinforcing member 1 is formed shorter than the rubber pad 5. Although the pair of reinforcing members a and b are independent of each other, the reinforcing members a and b and the rubber pad 5 are integrally connected by vulcanization. The head of the mounting bolt is welded to the back surface of the bottom of each reinforcing member, and the threaded portion protrudes to the crawler belt side. The bottom and sides of the reinforcing member support the entire rubber pad 5, and the bottom has sufficient strength to support the mounting bolt. The area without the reinforcing member is the rubber pad 5
Is exposed. Reference numeral 8 denotes a recess for mounting a link mounting bolt.

【０００８】従って、この履帯用パッドは、補強部材が
パッド支持するうえで必要な最小限の強度の量にスリム
化されており、表面は、パッド面の多い履帯用パッドを
形成しているので、従来の履帯用パッドに比し、軽量に
なっている。この履板に装着した履帯用パッドは、履板
の踏面に、大半がパッド材で接触しており、履板への接
触もソフトで、弾性を有するので密着性も良い。又、パ
ッド面が衝撃荷重を受けた場合、パッド面の自由端が多
いので、パッドが容易に圧縮、変形して荷重を分散させ
る。又、ボルトのヘッド上のゴムパッドは、パッドの厚
みは従来と変わらないが、周囲が容易に弾性変形するの
で、集中荷重が分散される。従って、破損、特にコーナ
ー部の破損がなくなる。履帯用パッドの両端が自由端と
なっているので、パッド内に圧縮応力が生じても、圧縮
変形して応力を分散させる。履帯用パッドを履板に装着
したとき、ゴムパッドの補強部材のない部位は、履板に
直接当接する。Accordingly, the crawler belt pad is slimmed down to the minimum strength required for the reinforcing member to support the pad, and the surface forms a crawler belt pad having a large pad surface. , Compared to conventional track pads. Most of the crawler belt pad attached to the crawler board is in contact with the tread surface of the crawler board with a pad material, and the contact with the crawler board is soft and elastic, so that it has good adhesion. Further, when the pad surface receives an impact load, the pad is easily compressed and deformed to disperse the load because the pad surface has many free ends. The thickness of the rubber pad on the bolt head is the same as that of the conventional rubber pad, but since the periphery is easily elastically deformed, the concentrated load is dispersed. Therefore, breakage, especially at the corners, is eliminated. Since both ends of the crawler belt pad are free ends, even if a compressive stress is generated in the pad, the pad is deformed by compression to disperse the stress. When the crawler belt pad is mounted on the crawler board, the portion of the rubber pad without the reinforcing member directly abuts on the crawler board.

【０００９】[0009]

【効果】本発明は上記構成を有するので、次の効果を奏
する。According to the present invention having the above-described structure, the following effects can be obtained.

【００１０】無限軌道車に本発明の履帯用パッドを装着
し走行させた場合、ゴムパッドのコーナー部に局所的応
力が掛かっても、ゴムパッドが容易に弾性変形し、応力
を分散させるので、切れや欠けの損傷を最小限に抑える
ことができる。When the crawler belt pad of the present invention is run on a tracked vehicle, even if local stress is applied to the corner of the rubber pad, the rubber pad is easily elastically deformed and disperses the stress. Chipping damage can be minimized.

【００１１】補強部材を幅方向に二分割し、各々独立さ
せ、補強部材を最小限にし、ゴムパッドを直接履板に装
着した部位を多く設けたので、履帯用パッドのある程度
の塑性変形が可能で、履板に密着しやすい。Since the reinforcing member is divided into two parts in the width direction, each part is independent, the number of reinforcing members is minimized, and a large number of parts where rubber pads are directly attached to the crawler board are provided, so that a certain amount of plastic deformation of the crawler belt pad is possible. , Easy to adhere to the footwear.

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

【図１】本発明の履帯用パッドの第一実施例の裏面を示
す全体斜視図である。FIG. 1 is an overall perspective view showing a back surface of a first embodiment of a crawler belt pad of the present invention.

【図２】図１のＩ−Ｉ断面図である。FIG. 2 is a sectional view taken along line II of FIG.

【図３】図１のＩＩ−ＩＩ断面図である。FIG. 3 is a sectional view taken along line II-II of FIG.

【図４】従来の履帯用パッドを示す部分斜視図である。FIG. 4 is a partial perspective view showing a conventional crawler belt pad.

【符号の説明】[Explanation of symbols]

Ａ、Ｂ 履帯用パッド １、ａ、ｂ 補強部材 １ａ、１ｂ 側部 ２ａ、２ａ′、２ｂ、２ｂ′ 小底部 ５、１５ ゴムパッド ７ ボルト ８ リンク取付け凹部 A, B Track pad 1, a, b Reinforcement member 1a, 1b Side 2a, 2a ', 2b, 2b' Small bottom 5, 15 Rubber pad 7 Bolt 8 Link mounting recess

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 踏面を形成する弾性部材と、弾性部材を
支持する補強部材と、補強部材の裏面にヘッドを溶接し
履板側に突出した取付けボルトとよりなる中央突条を有
する履板の踏面に装着する履帯用パッドにおいて、前記
補強部材は、幅方向に二分割して互いに独立させ、各補
強部材は、弾性部材の幅方向の一側面を支持する側部
と、長手方向の取り付けボルトを支持する部位の両小底
部とを一体にした略コ字状に形成し、各小底部と側部の
長手方向両外端部は弾性部材の両端部より内方に位置
し、その他の部位は弾性部材が露出したことを特徴とす
る履帯用パッド。1. A footwear plate having a central ridge comprising an elastic member forming a tread surface, a reinforcing member supporting the elastic member, and a mounting bolt which is formed by welding a head to the back surface of the reinforcing member and protruding toward the footwear side. In a crawler belt pad to be mounted on a tread surface, the reinforcing member is divided into two in the width direction to be independent from each other, and each reinforcing member has a side portion supporting one side in the width direction of the elastic member, and a mounting bolt in a longitudinal direction. Are formed in a substantially U-shape integrally with both small bottom portions of the portion for supporting, and each small bottom portion and both longitudinal outer ends of the side portions are located inward from both ends of the elastic member, and other portions are formed. Is a crawler belt pad having an exposed elastic member.