Patent classifications
B29D30/0601
TIRE HAVING A CONDUCTIVITY PATH
A tire includes a body ply sheet having a rubber core defined by a top surface having a length and a width, a bottom surface having substantially the same length and width, and side surfaces having a common height. The body ply sheet includes reinforcement cords spaced 0.1-4.0 mm apart from each other and spanning the width of the body ply sheet. Bleeder cords are disposed on the body ply sheet and spaced are 8-12 cm apart from each other. Conductive cords are also disposed on the body ply and are spaced 20-80 cm apart from each other. At least one of the conductive cords has a first end and a second end, the first end being located in a region within a middle 80% of a width of the circumferential tread.
Method, curing line, processing unit and associated electronic unit for controlling curing apparatuses for tyre production
Methods for controlling curing apparatuses for tyre production, wherein the curing apparatuses are adapted to work on green tyres to obtain corresponding finished tyres, by acquiring, through a processing unit, initial parameters describing at least one of the shape and dimensions of the finished tyres; computing, through the processing unit, as a function of the initial parameters, first parameters describing the green tyres, the first parameters having at least one parameter representative of an axial height of the green tyres; acquiring, through the processing unit, second parameters describing the curing apparatuses, said second parameters having one or more parameters representative of dimensions of the curing apparatuses; computing, through the processing unit, third parameters as a function of the first parameters and the second parameters, the third parameters having one or more parameters representative of positions taken by movable members included in the curing apparatuses; generating, through the processing unit, as a function of the third parameters, control signals for controlling the movable members of said curing apparatuses and for obtaining said finished tyres starting from the green tyres; sending the control signals from the processing unit to the curing apparatuses. Also disclosed are a curing line operating in accordance with the methods, a processing unit programmed for implementing the methods, and an electronic unit included in the processing unit.
Hydraulic tire curing press apparatus and a method for adjusting mold height in a hydraulic tire curing press
A curing press for tires includes an upper cavity having a vertically separable upper housing and a top mold. A lower cavity is mounted on a base and forms an arrangement to provide mold height adjustment during curing. The base includes a bottom bolster structure and a bottom mold. An indexing lock ring is rotatably arranged with the bottom bolster structure for closing or opening of the top and bottom molds. The bolster structure includes squeeze cylinders having piston rods to provide mold height adjustment. A squeeze retract stop assembly is provided to restrict vertically downward movement of the bottom mold during a tire curing process. The press includes at least one locking lever and at least one indexing lock pin adapted to connect the at least one locking lever to lock holes in the bottom bolster structure wherein each lock hole corresponds to a particular mold height.
HEATING PRESS AND METHOD FOR VULCANIZING A VEHICLE TIRE IN SAID HEATING PRESS UNDER VACUUM
A heating press (1) for vulcanizing a vehicle tire under a vacuum, comprising a heating press upper part (3) and a heating press lower part (6), wherein a container (2) having the mold parts (14, 16, 17, 18, 21) of a segmented vulcanizing mold and a cylindrical hood upper part (4) enclosing said container are arranged on the heating press upper part (3), wherein the hood upper part (4) is arranged fixedly on the heating press upper part (3), wherein the diameter of the hood upper part (4) is dimensioned such that said hood upper part can be pushed over the heating press lower part (6) with a small clearance and said hood upper part has a length (23) which is sufficient to form a closed hood interior space (12) with the heating press lower part (6) and heating press upper part (4) when the vulcanizing mold is still open, wherein, in the course of a first stroke (H.sub.1), the heating press upper part (3) can be moved in the axial direction (P1) in such a way that the hood upper part (4) forms a vacuum-tight hood interior space (12) with the heating press lower part (6), although the vulcanizing mold remains open in an air-permeable manner, wherein, in the course of a second stroke (H.sub.2), the heating press upper part (3) can be moved further in the axial direction (P1) in such a way that the vulcanizing mold can be completely closed under vacuum conditions in the interior space of the hood (12).
Tire vulcanization mold and pneumatic tire
Provided is a tire vulcanization mold which includes a sector mold configured to mold a tread portion; and a pair of upper and lower side plates positioned on an inner diameter side of the sector mold and configured to mold side wall portions, the sector mold and the pair of upper and lower side plates being configured to engage with each other by fitting engagement by way of fitting portions which opposedly face each other in a radial direction. At least either one of the sector mold and the side plate has: a recessed portion extending from each fitting surface in a tire radial direction and indented outward in a tire width direction; and a saw cut groove having a groove shape extending in a tire radial direction along at least one of an edge portion and a corner portion of the recessed portion and communicating with the fitting surface.
TIRE VULCANIZING MACHINE AND TIRE VULCANIZING METHOD
A tire-vulcanizing machine for positioning a green tire and a mold via a mold-clamping process, the tire-vulcanizing machine including two guide rods, the mold which includes an upper mold and a lower mold, a bolster, a base, a mold-elevating device, two clamping rods, and guide bushes provided on the bolster.
Tire having a conductivity path
A tire includes a body ply sheet having a rubber core defined by a top surface having a length and a width, a bottom surface having substantially the same length and width, and side surfaces having a common height. The rubber core is further defined by a top rubber layer and a bottom rubber layer. The body ply sheet includes reinforcement cords disposed between the top rubber layer and the bottom rubber layer. The reinforcement cords are spaced 0.1-4.0 mm apart from each other and span the width of the body ply sheet. Bleeder cords are disposed on the body ply sheet and spaced 8-12 cm apart from each other. Conductive cords are also disposed on the body ply and spaced 20-80 cm apart from each other.
METHOD AND APPARATUS FOR IMPROVED TREAD SPLICING
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.
Production method for rubber particles having membrane-binding protein bound thereto, production method for pneumatic tire, and production method for rubber product
The present invention provides a method for producing rubber particles bound to a membrane-associated protein by cell-free protein synthesis. The present invention relates to a method for producing rubber particles bound to a membrane-associated protein, the method including the step of performing protein synthesis in the presence of both rubber particles and a cell-free protein synthesis solution containing an mRNA coding for a membrane-associated protein to bind the membrane-associated protein to the rubber particles.
METHOD AND APPARATUS FOR AIR EXTRACTION IN THE AREA OF A HEATING PRESS
A method and the apparatus serve for air extraction in the area of a heating press. Extracted air is fed to at least one exhaust air treatment device. In the area of the device, the extracted air is modified in terms of at least one parameter. It is intended, in particular, to use a tire heating press as the heating press.