| 摘要 |
PURPOSE:To make maintenance and inspection operations easier by a method in which motors to operate drive and driven pulleys and these pulleys are attached to a distribution board which is attached detachably to the frames of door head, transom, etc. CONSTITUTION:A distribution board 2 is detachably attached to the fixing side frame 1, door head, transom, etc., and provided with a driven pulley 22 wound with belt 21 and a drive pulley 23, a motor 24 to operate the driving pulley 23, and a source circuit box 25 to control the motor 24. The coupling projection of a connector 5 fixed to the upside of the door 4 is detachably fitted into the hole of a holder 3 fixed to a belt 21. |
