| 摘要 |
PURPOSE: A four-poster lift having an emergency locking device is provided to immediately block a drop of a vehicle loading carrier by immediately responding when the wire is cut in a state where the vehicle loading carrier is moved up. CONSTITUTION: A four-poster lift having an emergency locking device comprises a locker rail(10), a lifting bar(20), a sheave pulley(30), a wire(40), a locker(50), a detecting pulley(60), and elastic members(70). The locker rail comprises hanging grooves(11) vertically arranged along a post. The lifting bar is arranged vertical to the locker rail and is moved upward and downward. The sheave pulley is mounted on brackets(B) formed in both sides of the lifting bar to be rotated around a first rotary shaft(P1). The wire is connected to a driving device after being extended along the lifting bar. The locker forms a detecting pulley mounting part(51) in the upper part and a locking part(55) in the lower part. The middle part(53) of the locker is rotatably fixed in the brackets by a second pin shaft(P2). |
