Movable sikrt of belt conveyor by load of luggage such as coal, limestone or ore

The present invention is fixed to be directed to a skirt device provided in the chute bottom of the belt conveyor used to transport the soft, the material in the mill, of the stand base fixed to the main frame of the belt conveyor length elevating elastically in the center the upper surface of the center roller having a roller base; The opposite ends of the central roller is engaging the base of the interlocking doedoe rotatably fixed around a support provided on the base stand side one pairs of roller base; It supported by a support in the up-dolseol the main frame is disposed in parallel with the bottom side of the chute and the rotating shaft; Flowing character the side roller outer base can be connected end of the flow being rotatably fixed to the shaft and the rotating shaft; It is configured to include a skirt to enable elevating elastically is engaging with the flow character which is installed in the side lower end of the chute. According to the invention, it is possible to suppress the meandering of the belt and increase the carrying capacity by making unit to be automatically adjusted in correspondence with the space between the flow amount of the carrier roller stand which is variable depending on the water load of the conveyance belt and the louver skirt.