A method for producing a molding tool (5) of a vulcanization device for the molding vulcanization of a vehicle tire (1), wherein the molding tool (5) has a negative contrast structure (6) on a molding surface of the molding tool (5), with the following steps: a) providing the molding tool (5) having the molding surface for the stamping of a surface (2, 3) of a vehicle tire (1) in a molding manner in the course of the vulcanization of the tire by means of the vulcanization device, b) creating a first surface structure (9) of first depressions (10) by means of a machining process, wherein the first surface structure (9) extends at least over a surface region (7) of the molding surface, c) creating a second surface structure (11) of second depressions (12) by means of laser engraving, wherein the second structure (11) extends at least over the surface region (7) and wherein the first surface structure (9) and the second surface structure (11) together form the negative contrast structure (6) in the surface region (7).

A mould comprising a first and a second half-part (15a, 15b) that are mutually side-by-side along a geometric centring axis (X) in order to define a moulding cavity (16). An internal wall (16a) of the moulding cavity (16) has a first and a second series of slots (17a, 17b) having the respective axially outer terminal portions (19a) respectively in the first and in the second half-part (15a, 15b). The slots (17a, 17b) respectively belonging to the first and second series are circumferentially offset from each other and have respective axially inner terminal portion (20a, 20b) in proximity to an intermediate reference plane (P). A junction line (22) between the first half-part (15a) and the second half-part (15b) has an undulating progression astride the intermediate reference plane (P), to form alternatively arranged crests (23), each intersecting the axially inner terminal portion (20a, 20b) of one of the slots (17a, 17b).

Provided are a tire with new sidewall pattern and a tire mold, which belongs to the technical field of tire, the tire includes a tire body, a sidewall of the tire body has a labeling region, in which multiple pattern units are provided; the pattern units are provided to protrude from the tire body, the pattern unit includes a curved portion having a curved segment and extension ends provided at both ends of the curved segment. The tire mold is used for manufacturing the tire. The tire has better visual performance and mechanical performance.

A method for producing a mold segment of a vulcanizing mold for a pneumatic vehicle tire for forming the profiling of a tread, having a metallic base part (6) with a mold side with ribs (3) which form channels encircling or delimiting profile elements.

A rib skeleton (8) consisting of ribs (8′), the arrangement and the profile of which at least partially corresponds to the arrangement and the profile of ribs (3) forming channels, is milled from the base part (6),

inserts (7) with peripheral frame parts (7b) are built up by means of an additive method,

the inserts (7) being inserted into the rib skeleton (8) and the frame parts (7b) completing the ribs (8′) of the rib skeleton (8) to form the ribs (3) forming the channels.

A tire vulcanization mold includes a molding surface for molding a tire during vulcanization molding. The molding surface can include a first region in which a plurality of recesses for forming a plurality of projections on a surface of the tire can be provided. In the first region, at least two of the recesses can be arranged per mm.sup.2. Each of the recesses can include a side wall surface, a bottom surface, and a virtual recess central axis extending in a depth direction of the recess. In a cross-sectional view of the recess including the recess central axis, the bottom surface can include a bottom projection projecting outward in the depth direction, and the side wall surface can include an arc-shaped surface smoothly connected to the bottom surface.

The subject invention relates to a mold segment comprising a tread molding element for manufacturing a tire wherein the tread molding element comprises a shell and an infill, wherein the shell has a first wall with a negative tread pattern extending from its external surface for molding the tread, a second wall opposed to the first wall, and lateral walls; wherein the infill is a fluid-permeable structure defining a fluid-permeable infill; and wherein at least one of a lateral wall and the second wall comprises at least one fluid passage passing through the lateral wall or the second wall.

The molding element has a plurality of contacting element delimited by grooves, the molding element having a molding surface for forming a contact face of the contacting element intended to come into contact with ground during rolling and a groove forming rib portion for forming the groove comprising two opposed rib side faces for forming two opposed groove side faces and a rib top face connecting two rib side faces for forming a groove bottom, the groove forming rib portion providing a space opening to at least one of the rib side faces and/or to the rib top face and an insert being received in the space for forming a portion of the groove and a closing device in the groove, the insert comprises at least one notched plate of thickness t1, the notched plate includes at least one notch for forming a flexible fence of the closing device.

The disclosure relates to a molding element including a main lamella and two ribs positioned on either side of the main lamella at a certain distance from this main lamella. The ribs are mold-able to grooves in the tread, these ribs including rounded ends. The main lamella includes a cutting edge, the cutting edge making an acute angle. The ribs are curved in their length with a curvature C and in that the lamella is curved with the same curvature C.

A mold for vulcanizing and molding a tire is provided herein. The tire includes a tread delimited by two sidewalls, the mold including a ring for molding the tread of the tire and two shells for molding the sidewalls. The mold includes an annular groove extending in a recessed manner in one of the shells and an insert housed in the groove, this insert having tire marking elements and being formed from a plurality of insert parts that are positioned one after another in the annular groove.

A pneumatic tire is provided in the tread portion with a land portion including a conductive portion made of a conductive rubber. The conductive portion has a radially inner end electrically connected to a conductive tire internal structural to be connected to a wheel rim, and a radially outer end exposed in a ground contacting top surface of the land portion. The conductive portion extends from its radially inner end to outer end while inclining toward a first side surface of the land portion. The first side surface comprises a radially inner part, and a radially outer part extending radially outwardly from the radially inner part while inclining to the radially outer end of the conductive portion at an angle greater than the radially inner part.