| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an opening/closing device for preventing a malfunction so as to control a braking release operation part stably. <P>SOLUTION: The opening/closing device comprises: an opening/closing body 10 capable of closing motion; a braking part 32b for braking the closing motion of the opening/closing body 10 and releasing the braking by operating a braking operation part; an automatic closing unit 33 for operating to release the braking operation part by a braking release operation part 33f driven by an electric motor 33a; and a load detection part 33g for detecting a load value of the electric motor 33a, and the electric motor 33a is stopped according to the load value detected by the load detection part 33g during the release operation of the braking release operation part 33f by driving of the electric motor 33a. In the opening/closing device, the braking release operation part 33f is returned to a primary position according to a prescribed condition set beforehand. <P>COPYRIGHT: (C)2012,JPO&INPIT |
