B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
B60C 11/13 (2006.01)
Patent
CA 2420554
A tread pattern having at least one circumferential groove and transverse grooves extending from the circumferential groove defining tread blocks there between. The tread blocks include sidewalls limiting the longitudinal groove laterally and projections projecting from the sidewalls into the circumferential groove. The width of each of the projections is less than 10% the circumferential dimension of the respective tread block. To convert a mold having elements that produce tread blocks with substantially flat sidewalls into a mold that produces the tread pattern, channels are machines into the sidewalls of the mold elements.
L'invention concerne une sculpture des bandes de roulement comprenant au moins une rainure circonférentielle (10) et des rainures transversales (12) s'étendant à partir de la rainure circonférentielle définissant des pavés entre elles. Lesdits pavés comprennent des parois latérales limitant latéralement la rainure longitudinale et des parties en saillie (18) faisant saillie à partir des parois latérales dans la rainure circonférentielle. La largeur de chacune des parties en saillie correspond à moins de 10 % de la dimension circonférentielle du pavé respectif. Afin convertir un moule possédant des éléments qui produisent des pavés à parois latérales sensiblement plates en un moule qui produit ladite sculpture de bandes de roulement, des canaux sont usinés dans les parois latérales des éléments de moule.
Bridgestone Firestone North American Tire Llc
Bridgestone/firestone Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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