To prevent the falling of a shoji even though a shoji suspending wire is broken.

A base body 7 having a wire linking portion 12 linking a suspension wire 13, a support shaft 8 provided for the base body 7, a swinging brake piece 9 supported by the support body in a freely swinging manner, a boss 10 protruded to the swinging brake piece 9 and linked to the suspension wire 13, and spring 11 exerting the swinging brake piece 9 to outer side are provided; in a state where the suspension wire 13 is suspending the shoji 3, the swinging brake piece 9 is held at a position separated from the window's vertical frames 2A and 2B while resisting against an exerting force by the spring 11 because the boss 10 is subjected to a force in lateral direction by the tension of the suspension wire 13, and when the suspension wire 13 is cut off, the swinging brake piece 9 is protruded outward by the exerting force by the spring 11 and comes into contact with the window vertical frame 2A and 2B thereby preventing the falling of the shoji 3.