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US 2019/0100058 A1Published application
Tire mold and tire
AssigneeBridgestone Corporation
InventorYoshio KAJI
Life of this patent
Estimating the term…
Abstract
A tire mold includes a mold surface for vulcanizing and molding a tire, and a blade for vulcanizing and molding a sipe formed in the mold surface. The blade includes a concave-convex surface in which a plurality of convex portions formed adjacent to each other and a plurality of concave portions formed between the adjacent convex portions adjacent to each other are formed. A length of the concave portion is smaller than a length of the convex portion in a concave-convex surface view. The concave portion is sharp in a depth direction of the concave portion.
Claims9
A tire mold comprising:
- a mold surface that vulcanizes and molds a tire;
- and
- a blade that vulcanizes and molds a sipe in the tire, the blade being formed on the mold surface,
- wherein:
- the blade includes a concave-convex surface in which a plurality of convex portions formed adjacent to each other and a plurality of concave portions formed between the convex portions adjacent to each other are formed;
- a length of the concave portion is smaller than a length of the convex portion in a concave-convex surface view;
- and
- the concave portion is sharp in a depth direction of the concave portion.
5 more elements
A tire comprising:
- a tread surface;
- a plurality of circumferential direction grooves formed on the tread surface and extended in a tire circumferential direction;
- a plurality of lateral grooves formed on the tread surface and extended in a tire width direction, the lateral groove crossing the circumferential direction groove;
- a block formed in the tread surface and defined by a plurality of the circumferential direction grooves and a plurality of the lateral grooves;
- and
- a plurality of sipes extended in the tire width direction and formed in the block,
- wherein:
- each of inner wall surfaces facing each other of the sipe includes a concave-convex surface in which a plurality of concave portions formed adjacent to each other and a plurality of convex portions formed between the concave portions adjacent to each other are formed;
- a length of the convex portion is smaller than a length of the concave portion in a concave-convex surface view;
- and
- the convex portion is sharp in a depth direction of the convex portion.
8 more elements
Dependencies are inferred from the claim text.