Mast type lift and mast type lift system

摘要

The lift system is concatenated between the job platform and the mast of the mast type lift. The lift system through the hoisting drum which is concatenated to the swinging roller and the job platform includes the rope for ascent and descent of the one which is concatenated with the job platform and the aforementioned mast at least. The swinging roller is movement possible between engagement position and engagement release position on the basis of the tension tonnage of the rope for ascent and descent. The spring is concatenated by the swinging roller, in engagement position the pushing overpowers the swinging roller. The carriage latch assembly includes the carriage latch hook which is concatenated to the swinging roller and the pin which is locked to the mast. When the swinging roller is laid out in engagement position, the carriage latch hook is engagement possible in the pin.