PROBLEM TO BE SOLVED: To provide a crawler pin seal in which dust is hard to invade and interpose in a link side seal part and a space part between the end face of the link member, and thereby the abrasion of the link side seal part can be prevented from progressing.SOLUTION: A crawler pin seal is mounted in an annular space surrounded by a connecting pin in a crawler structure, a link member and a bush member. The crawler pin seal is integrally provided with a link side seal part, a bush side seal part and an intermediate connection part for connecting both seal parts. The intermediate connection part satisfies a relationship of φd>φd≥φdin the crawler pin seal with a form of bellow, where an outer diameter of the link side seal part is φd, the outer diameter of the bush side seal part is φd, and the outer diameter of the intermediate connection part is φd. A space part of dust accumulation is provided in the outer diameter side of the link side seal part.SELECTED DRAWING: Figure 1

    【課題】リンク側シール部およびリンク部材の端面部間の空間部にダストが侵入・介在しにくく、よってリンク側シール部の摩耗が進行するのを抑制することができる履帯ピンシールを提供する。【解決手段】履帯構造における連結ピン、リンク部材およびブッシュ部材に囲まれる環状の空間内に装着される履帯ピンシールであって、リンク側シール部、ブッシュ側シール部および前記両シール部を連結する中間連結部を一体に有し、中間連結部はベロー状を呈する履帯ピンシールにおいて、リンク側シール部の外径寸法をφd1、ブッシュ側シール部の外径寸法をφd2、中間連結部の外径寸法をφd3として、φd2>φd1≧φd3の関係を充足し、リンク側シール部の外径側にダスト溜まりの空間部を設けることを特徴とする。【選択図】図1


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    Title :

    CRAWLER PIN SEAL


    Additional title:

    履帯ピンシール


    Contributors:

    Publication date :

    2017-04-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / F16J Kolben , PISTONS



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