Disclosed herein is a tire molding element. The tire molding element includes at least a molding surface for molding a plurality of ground contact elements of the tire tread, comprising: a ground contact surface which contacts a road surface, and a transverse side surface and a circumferential side surface connected to said ground contact surface; and a plurality of thin plates, comprising: a main body, provided in such a way as to cut a covering layer arranged in advance on an unvulcanized green tire.

A method of cutting a sipe pattern into a tire tread includes feeding the tire tread through a leading roller assembly and toward a plunge cutting assembly along a tread plane, actuating the plunge cutting assembly to cut a first sipe at a first angle and a first depth using a blade, the blade operably coupled to the plunge cutting assembly, and actuating the plunge cutting assembly to cut a second sipe at a second angle and a second depth using the blade.

Embodiments of the invention include methods for reducing deformation of a sipe-molding member (10) arising during manufacturing operations, and sipe-molding members (10) comprising a sipe-forming portion (12) and a plurality of stiffening members (20) spaced along the sipe-forming portion. The sipe-forming portion (12) has a length extending in a lengthwise direction of the sipe-molding member (10), a height configured to extend into a depth of a molding cavity, and a thickness extending perpendicular to both the length and height. The sipe-molding member (10) is configured to form a sipe having a thickness commensurate with the thickness of the sipe-forming portion, a length formed by at least a portion of the length of the sipe-forming portion, and a depth formed by at least a portion of the height of the sipe-forming portion. Each of the plurality of stiffening members (20) extend outwardly from the thickness of the sipe-forming element. Further embodiments include methods of forming a molded tire tread.

Process for the additive manufacturing of at least one part by powder sintering or melting using at least one beam of energy. A step of deposition and selective melting of stacked layers of powder manufactures at least one intermediate element comprising the part and at least one local reinforcing element having a split tubular shape that surrounds one of the lateral end faces of the part and that face each of the frontal faces of said part adjacent to said end face, said reinforcing element extending in a direction substantially parallel to the stacking direction of the layers. The part and the local reinforcing element are separated.

A mould comprises a lining, having a lining body (2), and at least one moulding element (1) that is articulated with respect to the lining body, a cylindrical part (10) constituting a rotation axis (X) and a moulding part (11) secured to the cylindrical part (10). The cylindrical part (10) is placed in a cylindrical hole (20) arranged in the lining body (2) made from the same material as the moulding element (1). The moulding element (1) is of one piece, and is non-separable from the lining body (2).

The present invention provides a pneumatic tire including a tread block 10 having a sipe 100 formed therein. A three-dimensional inclined surface groove 110 is formed at an upper portion of the sipe 100 formed in the tread block 10, such that three-dimensional inclined surface protrusions 16 and inclined surface grooves 17 respectively formed on both sipe side wall surfaces 15 forming the sipe 100 so as to correspond to each other may minimize a movement of the tread blocks 10 due to a stress generated from the tire contacting with a ground during driving, so as to increase a traction force. In addition, a lower through groove is formed at a lower portion of the sipe 100 formed in the tread block 10, such that it is possible to reduce a resonance noise of the tire occurring when driving, more easily and automatically discharge the foreign matters caught in the sipes 100 of the tire during driving, and improve a traction performance of the tire in the latter half of the tire lifespan by dividing the remaining tread block 10 after the upper portion of the tread block 10 is worn.

Lining element intended to be inserted into a mould for moulding and vulcanizing a tire tread, the lining element comprising a body and inserts inserted into this body, at least some of the inserts comprising a pattern comprising a plurality of recessed or projecting elements, the pattern being formed as an integral part of the inserts.

A mold segment for forming a tire is provided that has a first sipe element (12) with a narrow section (14) and a teardrop section. The first sipe element has a female connector (18). A second sipe element (20) is present that has a narrow section (22) and a teardrop section. The second sipe element has a male connector (26). A mold segment base is present that receives the first sipe element and the second sipe element, and the female connector of the first sipe element receives the male connector of the second sipe element.

In one aspect, a tire is provided, the tire comprising: a tread portion comprising at least one of a tread rib or a tread block, a sipe included in the tread rib or the tread block, the sipe including: a radially outer portion, an interlocking portion radially inward of and directly connected to the radially outer portion, and a base portion radially inward of and directly connected to the interlocking portion, wherein the interlocking portion includes a plurality of positive interlocking portions and negative interlocking portions forming a sinusoidal wave profile in a plane formed by a circumferential axis C of the tire and an axial axis A of the tire.

A vulcanization mold is a mold including blades having a distal end side thick portion and pullout is performed smoothly by the mold without causing any failure, and a pneumatic tire. A vulcanization mold in which a blade or has a blade proximal end portion, a blade distal end side thick portion expanded in a thicknesswise direction on the distal end side, and a blade connection portion that connects the blade proximal end portion and the blade distal end side thick portion to each other is a vulcanization mold in which a blade density that is a number of blades implanted on a sector mold per unit length in a circumferential direction is lower at the blades in circumferential end portion side regions than at the blades in a circumferential central portion side region of the sector mold. Further, a pneumatic tire is manufactured using the vulcanization mold.