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    • 9. 发明授权
    • Crawler
    • 履带
    • US06634725B2
    • 2003-10-21
    • US10169996
    • 2002-07-12
    • Genroku SugiyamaWataru IdetsuAkihiko YamamotoYuji YoshitomiAkiomi Kono
    • Genroku SugiyamaWataru IdetsuAkihiko YamamotoYuji YoshitomiAkiomi Kono
    • B62D2516
    • B62D55/211B62D55/21
    • Hardened surface layers (12) and (14) of a nitride or other compound, which is higher in hardness than dirt or soil, are formed on the inner peripheral surface (11B) of each metal bush (11) and on the outer peripheral surface (13A) of each connecting pin (13) which constitute a crawler belt (7), respectively. In addition, resinous sliding bearings (15) are fitted in transversely spaced positions on the inner periphery of each metal bush (11) of the crawler belt. Bearing (15) is provided with recessed grooves (16). Accordingly, part of soil or dirt which intrudes into a gap space between an outer link portion (9) of a track link and a metal bush (11) through an annular seal member (17) is trapped on an inner peripheral surface (15A) of the bearing (15).
    • 在每个金属衬套(11)的内周面(11B)和外周面上形成硬度高于污物或土壤的氮化物或其它化合物的硬化表面层(12)和(14) (13)的每个连接销(13A)分别构成履带(7)。 此外,树脂滑动轴承(15)在履带的每个金属衬套(11)的内周上以横向间隔的位置装配。 轴承(15)设有凹槽(16)。 因此,通过环形密封构件(17)侵入到轨道连杆的外链节(9)和金属衬套(11)之间的间隙空间中的一部分土壤或污物被捕获在内周面(15A)上, 的轴承(15)。