The present invention is to provide a locking device having a function to prevent errors in reservation of a grandstand chair and an emergency release function, and the configuration of the present invention is coupled to the side of the seat 2 of the chair, and the seat 2 is A fixing body 20 on which a locking wing piece 6 protruding to the side is disposed; A latch 30 coupled to the fixing body 20 via an axis and having an unlocking guide groove 32 therein; A motor 50 provided in the fixing body 20; It is coupled to the motor shaft 152 of the motor 50 so as to be rotatably disposed on the fixing body 20, and a position in which the latch 30 is pushed up so as to be rotated relative to the axis, and the position of the latch 30 Including, the motor shaft 152 of the motor 50 includes a; locking guide groove 32 is coupled to the cam 40 to be changed to a position capable of rotating downward with respect to the axis of the latch 30 It is characterized by consisting of a twist shaft 152 that induces downward rotation of the cam 40 when the cam 40 is pressed.
展开▼
