SNOW-PLOUGH WITH WINCH ASSEMBLY TO FACILITATE CONTROL OVER SNOW-PLOUGH AT STEEP SLOPES, AND METHOD OF WINCH ASSEMBLY ACTUATION Russian patent published in 2014 - IPC E01H4/02 

FIELD: transport.

SUBSTANCE: invention relates to snow-plough. Snow-plough (1) comprises winch assembly (10) to facilitate snow-plough (1) control at steep slopes, frame (2), user's interface (7), control unit (13) and winch assembly (10). Winch assembly comprises load-bearing structure (14) secured at frame (2). Drum (15) runs about lead-bearing structure (14) around axis (A1). Cable (16) is secured at one end with drum (15) and wound around drum (15), drum drive (27) while transducer (28) detects the position of drum (15) around axis (A1). Note here that control unit (13) controls the cable (16) depending on drum position and drum (15) geometry. Winch assembly (10) comprises at least one tensioning pulley (18) in contact with cable (16) to be turned by said cable (16). Second transducer (41) serves to define the position of tensioning pulley (18). Note here that control unit (13) defines drum (15) rpm and that of pulley (18) and controls power drive (27) depending upon pulley rpm, drum (15) position and geometry of pulley (18) and drum (15).

EFFECT: easier control at steep slopes.

10 cl, 4 dwg