| 摘要 |
A simple and cheap opening and closing motion control device is provided for avoiding pinching of an object X by a window glass 33 with high accuracy. The device includes a flexible weather strip 35 arranged along a contact portion of a window frame 31, the contact portion being touched by the window glass 33 when it is closed up perfectly, a liner electrostatic-capacity detecting sensor 13 embedded in the weather strip 35, for always detecting an electrostatic capacity in the circumference of the sensor 13, a control micro-computer 23 for judging whether or not the object X is pinched by the closing motion of the window glass 33, on the basis of the detection of the sensor 13, and a motor drive circuit 25 for allowing a motor 27 to either stop or open the window glass 33 when the micro-computer 23 judges that the object X is on the point of being pinched.
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