A heat insulating plate includes a base material and a reinforcement member attached to the base material. The base material is obtained by forming a sheet-shaped glass fiber cloth having a thickness of 0.5 mm. Further, twelve reinforcement members are attached to one base material. The reinforcement members have a role of ensuring the strength of the heat insulating plate by being in contact with the plate and the platen on the upper and lower end faces. The reinforcement members are formed in a stripe shape and are formed of a metal material having a thickness of about 1 to 10 mm, The metal material having excellent compressive strength and bending strength, such as iron, stainless steel, or titanium alloy, may be adopted.

A composite lining element for a tire mold comprises first and second bodies 12, 14 which are able to mold, at least in part, the one same tread pattern in a tread of the tire and each delimiting an exterior molding surface 12b, 14b and an opposite interior surface 12a, 14a. The composite lining element further comprises at least a means 16 of assembling the first and second bodies. The interior surfaces 12a, 14 of the bodies are kept by the means of assembling at least locally in a separated position that creates an interior space 22.

The present disclosure provides a molding element for a mold used for manufacturing a tread of a tire having a plurality of contacting element, a plurality of grooves and a connecting member connecting two side faces of adjacent contacting elements, the molding element having a molding surface and a rib for forming the groove between adjacent contacting elements, at least two rib side faces, the rib having a notching portion, a guiding member made of a material different from a material of the molding element being received in the notching portion and has two opposite side faces and a top face, the material of the guiding member having a modulus at 10% elongation lower than that of the molding element, the guiding member having a guiding slit, the guiding member has a recessed area extending in a direction along the guiding slit on the top face and an outermost portion of the guiding slit is open in the recessed area.

Provided is a tire vulcanization mold including an upper side plate and a lower side plate configured to mold tire side portions, an upper bead ring and a lower bead ring respectively having a profile surface configured to mold a bead portion and a non-profile surface positioned on an inner diameter side of the profile surface, and a thermocouple pullout passage configured to make the non-profile surface and an inner space positioned on an inner diameter side of the lower bead ring communicate with each other and to pull out a vulcanization temperature measuring thermocouple, wherein a first passage extending from the non-profile surface to a lower side plate side is formed in the lower bead ring, and at least a portion of the thermocouple pullout passage is configured by the first passage.

A mold for molding a tire tread comprises a plurality of mold segments. Each of the plurality of mold segments includes an integer number of tread pitch repetitions. The plurality of mold segments are structured to be coupled to each other end-to-end so as to form the mold such that the mold includes an integer number of tread pitches. The mold also includes at least one mold end segment positioned on at least one end of the mold and has a mold end segment length shorter than a length of each of the plurality of mold segments.

A mold for molding a tire tread comprises a plurality of mold segments. Each of the plurality of mold segments includes an integer number of tread pitch repetitions. The plurality of mold segments are structured to be coupled to each other end-to-end so as to form the mold such that the mold includes an integer number of tread pitches. The mold also includes at least one mold end segment positioned on at least one end of the mold and has a mold end segment length shorter than a length of each of the plurality of mold segments.

A mold 6 includes multiple segments 24 arranged in the circumferential direction so as to form a ring shape, and a pair of side plates 26, 28 positioned on an inner side in the radial direction, at end portions, in an axial direction, of the multiple segments 24. The side plates 26, 28 respectively have outer circumferential surfaces 26b, 28b which contact with the multiple segments 24 arranged in the ring shape. Each of the segments 24 includes a first contact surface 36 which contacts with the outer circumferential surface 26b of the upper side plate 26, and a second contact surface 38 which contacts with the outer circumferential surface 28b of the lower side plate 28. A radius R1 of the first contact surface 36 is greater than a radius R2 of the second contact surface 38.

A molding element having a molding surface forming a contact face and a groove forming rib portion forming the groove comprising two opposed rib side faces and a rib top face connecting two rib side faces, the groove forming rib portion provides at least one space opening to at least one of the rib side faces and/or to the rib top face. An insert is received in the space. The insert comprises a cavity for forming a closing device in the groove. The cavity has two opposed cavity faces and opens to at least two faces of the insert corresponding to the faces of the groove forming rib portion. The insert comprises at least one cutting means extending and/or projecting in a direction the groove forming rib portion extends for cutting a material filled in the cavity during demolding.

A tread mold includes a securable region at an outer circumferential portion thereof which is capable of being secured to a jig at a machining apparatus, and a positioning surface at the outer circumferential portion thereof which is capable of making surface contact with a reference surface at the jig so as to permit positioning to be carried out relative to the jig, the positioning surface is arranged so as to face in the tire circumferential direction so as to permit the tread mold to be positioned relative to the jig in the tire circumferential direction.

A self-locking mold (100) includes sectors (108) circumferentially distributed around a shell (102) to resist internal pressure and remain in the closed position without the aid of additional components during curing. The mold (100) includes shoulder spacers (120) that, in the closed position of the mold, are arranged between the shell (102) and the sectors (108). An elastic means (130) is employed so as to avoid friction between them.