TRAILER FOR PREPARATION OF SKI TRAILS (EMBODIMENTS) Russian patent published in 2023 - IPC E01H4/02 

FIELD: means for pre-treatment of snow surfaces.

SUBSTANCE: towed device for preparing ski slopes contains a loosening module, including a metal frame made of longitudinal and transverse rods and fastened in the front part with a triangular-shaped drawbar (2), which has a coupling device (3) for connection to the tractor. The tractor is connected to the module through a safety device located in a pipe permanently connected to the drawbar. In the second version, the sealing module consists of upper and lower frames located in parallel horizontally, one above the other, and vertically connected by racks and pipes, each of which is made of longitudinal and transverse profile pipes. In the third embodiment, the loosening module (55) and the sealing module (54) are removably connected to each other. Moreover, the sealing module for fixing its position relative to the loosening module is equipped with fixing brackets (56) placed on it and consisting of a steel profile pipe and side plates with shaped grooves at their ends.

EFFECT: efficiency of the device increases while its design is simplified.

3 cl, 14 dwg