| 摘要 |
PURPOSE:To obtain the title actuator which can obtain a strong force only in one direction in a forward and backward motion and which can be returned to an opposite direction by a weak force by a method wherein, when a parallel magnetic flux in one direction is generated in a coil in a space in which a parallel magnetic flux in the opposite direction has been generated, the coil is drawn to a space in a magnetic flux in the opposite direction. CONSTITUTION:Adjacent magnets 1, 2 or 3, 4 for an actuator are magnets of opposite polarities, and the magnets 1, 3 or 2, 4 which are opposite attracted to each other. When an exciting coil 6 is wound on an iron core and it is excited in such a way that the upper part becomes the S-pole, a stator receives an attractive fore from the counter magnetic 2, 4 on the right side and it receives a levitating force from the counter magnetic 1, 3 on the left side. A movable element receives a force on the right side and it receives a force in the opposite direction when the upper side of an opposite polarity is the N-pole. In addition, a rubber leg 24 is attracted to the stator, the flat boardlike permanent magnets 1 to 4 are pasted on yokes 12, 13 and wheels 8 for the moving element and rail base stands 11 are arranged at an outer box which holds them. As a result, the actuator can obtain a force which is storing in one direction on a straight line, and it can be returned to an opposite direction by a weak force. |
