Patent classifications
B29D2030/381
FIBER BELT INCLUDING FERROUS ELEMENT FOR MAGNETIC MANIPULATION
A fiber belt including at least one ferrous element is provided. The inclusion of the ferrous element, for example a ferrous cord, may permit magnetic manipulation of the belt. In one embodiment, a tire belt is provided, the belt comprising: a plurality of non-magnetic cords oriented in a row substantially parallel to one another; at least one ferrous cord oriented in a row substantially parallel to the plurality of non-magnetic cords; and wherein the plurality of non-magnetic cords and the at least one ferrous cord are calendered in a rubber material.
EXTRUDER SYSTEM AND METHOD FOR EXTRUDING CORD-REINFORCED TIRE COMPONENTS
The invention relates to an extruder system and a method for extruding cord reinforced extrudate, in particular for tire components, wherein the extruder system comprises an extruder head with flow channels for receiving an extrusion material from an extruder, a die for receiving said extrusion material from the flow channels and a cord guide for guiding cords side-by-side in a cord plane into the die, wherein the extruder head is provided with an insertion slot that extends in an insertion direction parallel to the cord plane through the extruder head, wherein the flow channels debouch into the insertion slot at a flow area, wherein the insertion slot is arranged for receiving the die and the cord guide in the insertion direction into a die position downstream of the flow area and a cord guide position upstream of the flow area, respectively, with respect to the insertion direction.
Device and method for producing tires
A device, which converts a reinforcing strip from being flat to being undulating, includes a transporter that guides fingers along a closed circuit, with the fingers being able to bear against a first face of the strip; a support plate that rotates about a plate axis and that supports rollers having axes parallel to the plate axis, with the rollers being able to bear against a second face of the strip; and a synchronizer that synchronizes a rotation of the support plate and a forward motion of the transporter. The closed circuit has an intersecting portion at which the synchronizer allows the fingers and the rollers to move rotationally in a common plane perpendicular to the plate axis, with the fingers and the rollers being interposed at the intersecting portion so as to cause the strip to have undulating waves that extend in the common plane.
Bleeder cord affixing device and method
A bleeder cord affixing device is made up of an affixing roller extending in a width direction of the treatment member and adapted to be pressed into the treatment member being moved, thereby to be rotated; and a roller moving mechanism that moves the affixing roller to and away from the treatment member. The roller moving mechanism operates to move the affixing roller to a pressed position urged to the treatment member, with a result that the affixing roller is caused to be rotated due to the movement of the treatment member at the pressed position and attaches the rubber member to the treatment member under the pressing force, and then presses the bleeder cords onto the treatment member to continuously affix the bleeder cords onto the surface of the treatment member.
Method for producing a reinforcement structure for a tire
The reinforcing structure for a tire is in the form of a stratified assembly formed of two layers of reinforcing strips of completely connected cross section, and flattened in shape. According to the method, the strips of each layer are laid side by side in a main direction of laying. The strips of the first layer are spaced apart by a distance that is less than the width of the strips of the second layer and in such a way that the edges of the strips of the first layer overlap the edges of the strips of the second layer. The two layers of strips are separated by a layer of uncoupling rubber.
SYSTEM FOR DRAWING AND TRANSFERRING WIRES AND METHOD OF USE
A system (100) for drawing and transferring wires arranged in one or more racks (110) of the system includes: a mobile structure (114) including a frame (114a), a base (114b) and one or more mobile means, one or more roller panels (116) made up of horizontal and vertical rollers that allow the wires to be organized; and a fixed structure (120) disposed at the end of the rack (110) and including a frame (120a) and a base (120b), allowing the transfer of the roller panels (116) from the mobile structure towards the fixed structure without loss of alignment of the wires, wherein the mobile structure is positioned next to the fixed structure. A method for drawing and transferring wires selected for incorporation in a reinforced ply is performed by the disclosed system.
Method for counting cords in rubber sheet
A method of counting cords embedded in a rubber sheet including a step of acquiring raw waveform data by scanning the outer surface of the rubber sheet, a step of obtaining first corrected data by performing a moving average processing on the raw waveform data, a step of obtaining second corrected data D3 by converting the amplitude center j of the waveform of the first corrected data into a straight line, a step of obtaining concave-center-position data, a step of obtaining first corrected concave-center-position data, and a step of obtaining second corrected concave-center-position data.
PNEUMATIC VEHICLE TYRE WITH BELT BANDAGE
A tire including a belt having a steel cord belt layer, and a bandage externally bearing radially on the belt. The bandage includes a rubber strip containing reinforcement cord. This rubber strip is wound about the belt at least from one axial belt end up to at least the other axial belt end, the ratio of the axial winding component to the circumferential winding component along the rubber strip is less than 0.01, and, over at least 70% of the axial belt width, does not vary by more than 2%. The spacing of two neighboring cords in two adjacent portions of the wound rubber strip at each circumferential position does not vary by more than 5% compared to the spacing of the cords in the rubber strip. The cords in the bandage are subjected to tension of at least 3 N/mm.sup.2 over at least 25% of the axial belt width.
MANUFACTURING METHOD AND MANUFACTURING DEVICE OF TIRE BELT
A manufacturing method includes cutting out a sheet-like belt for one full circle of tire by cutting a master roll diagonally with respect to a longitudinal direction between a master roll table 10 and a belt table 14, moving the belt table 14 carrying the cut-out sheet-like belt to a winding position of the sheet-like belt, winding the sheet-like belt around a winding cylinder 50 at the winding position, and unwinding the sheet-like belt from the winding cylinder 50 in a place facing a molding drum 64 and forming a cylindrical belt by winding the sheet-like belt around the molding drum 64.
WINDING METHOD AND WINDING DEVICE OF SHEET-LIKE BELT
A winding method includes: attracting a sheet-like belt 8b onto a table 14 by multiple attracting means 15 lined up in a longitudinal direction of the sheet-like belt 8b; and winding the sheet-like belt 8b around a winding cylinder 50 by moving the winding cylinder 50 in the longitudinal direction of the sheet-like belt 8b while rotating the winding cylinder 50 above the sheet-like belt 8b and by cancelling attraction by the attracting means 15 one after another from attracting means 15 to which the winding cylinder 50 has moved.