Rib- or fin-shaped element, profile ring segment and method for producing a profile ring segment
AssigneeContinental Reifen Deutschland GmbH
InventorsMichal Novotny, Zdenek Cernocky, Evzen Stetkar, Pavel Brazdil, Fabian Bloemer
Life of this patent
Estimating the term…
Abstract
Rib- or fin-shaped element (1, 10) comprising an anchoring part (1 b1, 10b1) and a molding part (1b2, 10b2), wherein the anchoring part (1 b1, 10b1) can be anchored in a profile ring segment of a profile ring of a vulcanizing mold that molds the tread of a vehicle tire and the molding part (1 b2, 10b2) is provided for molding a sipe or a groove in the tread. The element (1, 10) has at least one elongate projection (1a, 11), which forms a bevel at the periphery of the tread and is produced by means of selective laser melting.
Claims9
A method for forming a fin for producing a tire tread, the method comprising:
- forming a fin having an anchoring part and a molding part that run in an L-shaped manner and together enclose an obtuse inner angle and have a smooth outer surface;
- forming the anchoring part to have a substantially constant width;
- forming a bevel projection on an inner surface of the anchoring part;
- forming a plurality of holes in the anchoring part;
- forming the molding part to have varied widths and a constant thickness that correspond to grooves of a tire tread;
- forming a milling model to have elevations and slits for receiving the fin;
- inserting the fin into one of the slits of the milling model;
- producing a plaster core after inserting the fin into the slits of the milling model having the molding part within the plaster core and the anchoring part protrudes from the plaster core;
- forming a ring segment from the plaster core that has the molding part protrude from inside the segment and the anchoring part located within the segment;
- and
- forming a milling model from the ring segment and having the fin.
Dependencies are inferred from the claim text.