SU140548A1 - Self-propelled construction mast lift - Google Patents

Description

Self-propelled construction mast lifts are known, made in the form of a folding mast mounted on a self-propelled carriage with a cabin moving along it.

The main distinctive feature of the described self-propelled mast lift is that its working platform is designed as a closed cabin with a door and is equipped with a folding ladder. An elevator of this design provides workers lifting to any floor of the building being erected and planting them in window openings. Another difference in the lift is that a safety spring-loaded latch is installed under the floor of the cab, interacting with the tail section of the ramp. When the ladder is not fully lowered, the latch locks the cab door, preventing workers from exiting.

FIG. 1 schematically shows a mast lift in general; in fig. 2 - cabin, in two projections; in fig. 3 - safety catch.

On the trolley / mounted is a lift mast consisting of three sections 2, 3 and 4 hinged between each other, along which the carriage 5 moves. In the lower position the carriage is enclosed by a grille 5 located on the carriage. At the door 7 of the cab, a ramp 9 is hinged on the axis 8 and hinged. The tail part of the ramp is designed as a counterweight W, which interacts with the stop // of the spring-loaded latch 12 installed under the floor of the cab. During the movement of the cabin, the ladder is in a vertical position. A railing of 13 ramps encloses the cab on both sides. When the cab is stopped opposite the window opening 14 of the building 15, the ramp turns around axis 8 and is set to a horizontal position. The ramp is fixed in this position by resting the counterweight 10 into the floor 16 of the cab. At the same time, the tail end of the ladder (counterweight) affects the spring-loaded

No. 140548-2, a latch 12 for mechanically locking the doors, withdrawing it from the slot 17 and releasing the door to open.

The Research Institute of Organization, Mechanization and Technical Assistance to Construction considers the proposal to be original and promising. In conclusion, the institute notes the possibility of organizing on the proposed elevator uninterrupted transportation of goods in mote and electric carts, which can be used in multi-storey construction of buildings over 20 m high. The invention is recommended for implementation by the Moscow City Executive Committee

Claims (2)

1. A self-propelled construction mast lift, in which a folding mast is mounted on a self-propelled cart with a cabin moving along it, characterized in that, in order to provide workers on different floors of the building being erected on its working platform, and landing them on window openings, the platform is designed as a closed cabin with a door and is equipped with a folding ladder. 2. A lifter according to claim 1, characterized in that, in order to prevent workers from leaving the cab when the ladder is not fully lowered, a spring-loaded latch is used, located under the floor of the cab and turned off by the tail part of the ladder when lowering it to a horizontal position.