| 摘要 |
PURPOSE: A rubber band for preventing incoming soils and dusts into an excavator is provided to protect grease for preventing wear and to stably and efficiently prevent the infiltration of the soils and dusts. CONSTITUTION: In a rubber band molded by cubically combining a band and an O-ring, the rubber band for preventing soils and dusts of an excavator is composed of blades(4,6), a protruded part(5) and a recessed part formed in circumferential direction of an inner peripheral surface to keep elasticity at correspondent surfaces, and accordingly a bucket(a) and outer diameters(d,f) of an arm connecting part effectively contacted. In addition, the detachable rubber band includes a bolt(1), a T-shaped washer(2), and a T-shaped washer(3) having a nut.
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