Magnetic carrying device

摘要

A drive member has a spiral magnetic coupling in its upper surface configured from a N pole spiral and a S pole spiral. A carrier can slidably move in the shaft direction to pass through a point that is a fixed distance from the upper surface of the drive member, and a magnetic coupling is provided at an interval the same as the interval between the N pole spiral and the S pole spiral of the spiral magnetic coupling. The carrier is moved directly by the rotational operation of the drive member. The arranged interval (d) of the drive member along a conveying path is a positive integer multiple of twice the interval (p) between the N pole spiral and S pole spiral of the spiral magnetic coupling. The carrier can be moved smoothly and without interruption, even though a transfer part divides the magnetic carrying path between successive chambers.