Patent ID: 6561343
Filing Date: 2003-05-13
Classification: B65G,H01L

Abstract:
A magnetic carrying device for carrying an object to be processed through a plurality of chambers that are separated from each other by an openable linking part, the magnetic carrying device comprising:a carrier having a plurality of carrier magnetic coupling parts at a slide end; a rotating drive member arranged in each of the plurality of chambers, each rotating drive member having an outer surface with a spiral magnetic coupling part having an N pole spiral part and an S pole spiral part, the N pole spiral part being arranged at a first interval from the S pole spiral part; a drive device; a power transmission part arranged to transmit a drive force from the drive device to the rotating drive members; the carrier magnetic coupling parts being spaced from each other a distance substantially equal to the first interval; a guide device slidably supporting the carrier along a path at a spaced relationship from the rotating drive members so that the carrier is moved along the guide device by a rotating motion of the rotating drive members; a control member provided to synchronously control the rotating drive members to provide a continuous operation of the carrier between the chambers; wherein the rotating drive members are spaced from each other to define a pitch of 2 X the first interval X a positive whole number integer; wherein each of the rotating drive members is divided into a first section and a second section and the power transmission part is disposed between the first section and the second section.