| 摘要 |
<p>PURPOSE: A wing opening and closing device of a freight car is provided to automatically fix a wing to a frame when the wing descends and to release the wing from the frame by using one button when the wing is open. CONSTITUTION: A wing opening and closing device (10) comprises a motor (11), a lifting plate (13), a closing button (15), and an opening button. The motor is mounted on a frame (3) of a cargo box and performs forward rotation and reverse rotation according to the direction of a current. The lifting plate is vertically lifted by the motor in order to adhere to a part of the lower end of a wing (5). The closing button operates the motor and vertically moves the lifting plate. The opening button operates the motor and moves the lifting plate to the lower part.</p> |
