| 摘要 |
PROBLEM TO BE SOLVED: To prevent surfaces of a woody floor or a Tatami mat or others to be cleaned from being damaged when moving a suction tool in a perpendicular direction to the rotational direction of a rotary traveler. SOLUTION: The rotary traveling body 1 has a hollow shaped bearing portion 2 receiving a shaft in the same, and is constituted of a bumper portion 3 composed of an elastmer around the bearing portion 2, and a traveling portion 4 covering the bumper portion 3 and comprising an elastmer, the bumper portion 3 and the traveling portion 4 are integrally formed, the hardness of the bumper portion 3 is smaller than that of the traveling portion 4, chamfered portions 6 are formed in both the side corner portions of the rotary traveler 1, so that the face to be cleaned is prevented from being damaged or hooked because edges or burrs in both the side corner portions of the rotary traveling body 1 are eliminated. COPYRIGHT: (C)2008,JPO&INPIT
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