To prevent generation of noise in a carrying device.
A driving guide body is provided along an extending direction of a rail for a carrier on the rail for the carrier. A rugged waving state engagement receiving piece is formed at a lower end edge part of the driving guide body. A rotating body is mounted on a drive shaft of a driving part provided on a carrying device main body. A plurality of engagement pieces are equally arranged around the rotating body. The carrying device is made movable by engaging at least an engagement piece to the engagement receiving piece by interlocking with a rotation operation of the rotating body. An engagement/abutting surface of the engagement receiving piece to/on which the engagement pieces are engaged/abutted is formed substantially along a cycloid curve to be moving loci of the engagement pieces.
YAMANAKA YASUSHI
IMAMURA YASUNOBU
NAGAYOSHI ATSUSHI
KAHO SEISAKUSHO
JAPAN SCIENCE & TECH CORP
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