| 摘要 |
PROBLEM TO BE SOLVED: To completely prevent flexure and deformation due to a dead weight of a needle even when a total length of the needle of a linear motor is long in a linear drive device using the tunnel actuator type linear motor. SOLUTION: In this linear driving device using the linear motor as a driving source of a linear moving member, the linear motor consists of a plurality of stators which is wound with winding and of which driving phases are different, and the needle which linearly moves to the stators. The stators have a plurality of facing portions in which pole teeth face each other, and pole teeth of the plurality of adjacent facing portions are alternately disposed, the linear needle having a permanent magnet is disposed between the pole teeth constituting the above facing portions, and a linear bearing member which guides the linear movement of the needle is provided at least on one portion between the plurality of stators of which the driving phases are different. COPYRIGHT: (C)2006,JPO&NCIPI
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