Nippon Seal, Co., Ltd.

Rio Otsuru

Hiroshi Ono

Tsutomu Sato

Keiko Nishimura

Ryo Iriguchi

Yusuke Hino

The present invention includes a roller brush provided in a frame main body. The roller brush includes a rigid shaft, a pair of guide rollers, which are arranged concentrically with a shaft center line of the rigid shaft, and are mounted to shaft ends of the rigid shaft, and a cleaning brush cloth including cut piles raised from a cloth front surface of a foundation cloth. The cleaning brush cloth is helically wound around a shaft outer-peripheral surface of the rigid shaft with a cloth back surface of the foundation cloth being in contact with the shaft outer-peripheral surface, and is fixed to the rigid shaft.

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Osaka, Japan

Rio Otsuru