| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power transmission system, which can avoid drive thereof by the external force when an actuator is not driven and which does not need power consumption when braking and non-braking. <P>SOLUTION: A cam plate 114 is fitted to a support shaft 111 freely to move in a direction expressed with an arrow B, and regulated not to rotate around the support shaft 111 in a direction expressed with an arrow C. The cam plate 114 is formed with a cam part in a side surface, which is not opposite to a brake caliper 113. Projecting parts and recessed parts are mutually formed every 45 degrees, and they are smoothly connected to each other through a slope. A spring 115 is fixed to the cam plate 114 in a side opposite to the brake caliper 113. When the cam plate 114 is moved in the direction expressed with the arrow B (a figure 13), the brake caliper 113 is energized in the direction expressed with the arrow B. Drive of the power transmission system by the external force when the actuator is not driven can be avoided by using this brake mechanism, and power consumption can be reduced. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
