Dust discharging device and elevator screen door therewith

摘要

An impurity discharge device and a screen door equipped with an impurity discharge device are provided to improve in appearance by keeping clean the inside of a retreated groove of a guide rail in a guide sill of a screen door, and to prevent the separation of a guide shoe from a retreated groove. A screen door(1) moving along a retreated groove(6) of a guide rail(5) of a guide sill includes a brush moving along the retreated groove and collecting impurities of the retreated groove, a locking device installed to the retreated groove, and impurity discharge devices(2,3) moving along the inside of the retreated groove and having a hanging plate projected to the moving direction of the screen door and inserted to the locking device when closing, wherein the brush is installed to the lower part of the hanging plate.