| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inexpensively produceable drive mechanism of an opening and closing apparatus for a greenhouse having a simple structure. <P>SOLUTION: A lever 41 of a toggle switch 40 which is a switch for motor driving is provided so as to be protruded to the outside of a support frame 20. When the lever 41 reaches a winding stop position or an unwinding stop position, the drive mechanism returns the lever 41 to a neutral state by a string member 60 for stopping driving as a drive stop member and directly controls on/off motion of a motor 10. As a result, when the lever 41 is returned to a neutral position in the winding stop position or the unwinding stop position and the motor 10 becomes off state once, the motor is free from fear causing restarting even if external force by the drive stop member is not continuously exerted. <P>COPYRIGHT: (C)2004,JPO |
