ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYAL..............................RDIM360 (Ver 1.5 21 Nov 2005) - 1100000/00882844EUROPEAN PATENT APPLICATIONA319991222EP98850092.219980529svenen9702070 19970602SE19991222199951199812091998506 6E 01H 4/02 AdeVorrichtung, Arbeitswalze und Verfahren zum Bearbeiten von SchneeenDevice, working roll and method for working snowfrDispositif, cylindre de travail et procédé pour travailler la neige1Snömakaren Aktiebolag025299902981109Fjällnäs 204840 98 TänndalenSEWilhelmsson, PerFjällnäs 204840 98 TänndalenSESvensson, LennartÄkervägen 5840 95 FunäsdalenSESvensson, PeterÄkervägen 12840 95 FunäsdalenSERostovanyi, Peter00024041AWAPATENT AB, Box 5117200 71 MalmöSEATBECHCYDEDKESFIFRGBGRIEITLILUMCNLPTSEALLTLVMKROSI19991222199951

The invention relates to a device for forming a curved snow surface. The device (1) comprises an arm (13) which has at least two subarms (15, 17), which are hingedly interconnected for relative angling thereof in one plane, a connecting means (5) fixed to one end (23) of the arm and adapted to connect the device to a piste vehicle, a holder (43) which is hingedly fixed to the other end (31) of the arm for angling, in said plane, the holder in relation to the arm, and a working roll (35) which is rotatably suspended from the holder and is rotatable about its own axis which is parallel with said plane. The circumferential surface of the working roll is provided with working projections (43) which are designed and arranged in such manner that their tips, as the working roll rotates, touch a fictitious, spool-shaped surface surrounding the roll.

The invention also concerns a method and a working roll for forming a curved snow surface.