B - Operations – Transporting – 24 – D
Patent
B - Operations, Transporting
24
D
B24D 13/06 (2006.01) B24D 13/10 (2006.01)
Patent
CA 2482873
A CYLINDRIC DRUM PROVIDED AT ITS CIRCUMFERENTIAL EDGE WITH A NUMBER OF RECESSES THAT EACH ARE ADAPTED FOR ACCOMODATING A REPLACEABLE GRINDING ELEMENT INCLUDING A RETAINER MEANS IN WHICH IS MOUNTED A SANDPAPER, SUPPORT BRUSHES AND/OR RETAINER BRUSHES, AND WHERE THE RECESSES IN THE CYLINDRIC DRUM ARE MADE WITH SIDE WALLS, THAT THE RETAINER MEANS ARE MADE WITH CORRESPONDING OUTER SIDE WALLS, THAT THE RETAINER MEANS ARE DESIGNED WITH GROOVES FOR FASTENING AT LEAST ONE SANDPAPER, THE GROOVES EXTENDING FROM AN UPPER SIDE OF THE RETAINER MEANS AND INTO THE RETAINER MEANS FOR FORMING AT LEAST ONE ELASTIC AND PLIABLE FLAP WHICH IS DISPOSED BETWEEN GROOVES AND AT LEAST ONE OUTER SIDEWALL, AND THAT BY WEDGE ACTION BETWEEN THE SIDE WALLS OF THE RECESSES AND THE OUTER SIDE WALLS OF THE RETAINER MEANS A SQUEEZING FORCE ON THE SIDE WALLS OF THE RETAINER MEANS DIRECTED IN THE CIRCUMFERENTIAL DIRECTION ARISES DURING USE.
L'invention concerne un tambour cylindrique comprenant au niveau de son rebord circonférentiel plusieurs retraits qui sont conçus pour loger un élément de meulage amovible comportant des moyens de retenue pourvus d'un papier abrasif, de brosses de support et/ou de brosses de retenue. Les retraits du tambour cylindrique sont constitués de parois latérales et les moyens de retenue sont constitués des parois latérales externes correspondantes. Ces moyens de retenue comportent des rainures permettant de fixer au moins un papier abrasif, ces rainures s'étendant d'un côté supérieur des moyens de retenue et vers l'intérieur des moyens de retenue de façon à former au moins un volet élastique et pliable agencé entre des rainures et au moins une paroi latérale extérieure. Le coincement entre les parois latérales des retraits et les parois latérales des moyens de retenue crée pendant l'utilisation une force de serrage sur les parois latérales des moyens de retenue orientée dans le sens circonférentiel.
Jespersen Poul Erik
Marks & Clerk
LandOfFree
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