摘要:
The invention can efficiently provide a carcass member constituting a carcass layer of a radial tire, particularly, a carcass member a direction of a cord of which constitutes an angle of substantially 90° relative to a tire circumferential direction, and can easily adjust a length in accordance with a size, one piece of a cord (C) is continuously passed through a rubber coating die (14) to coat rubber on the cord, the rubber coated cord (C1) is shaped such that a sectional outer shape thereof constitutes an elliptical shape, the rubber coated cord (C1) is wound around an aligning drum (30) while adjusting a direction of the elliptical shape by way of an aligning guide (20) to bond without producing a gap to form a cylinder-like member (A1), thereafter, the cylinder-like member (A1) is cut in a direction in parallel with the drum axis center to constitute a sheet-like shape.
摘要:
A method of preparing a bias fabric from a tubular fabric having selvages, which method reduces or minimizes wrinkling or puckering of the fabric when it is reached, pantographed or calendered. The bias fabric is cut from the tubular fabric in a manner that controls occurrence of selvages across the width of the bias fabric.
摘要:
A continuous elongated element coming from an extruder or a supply reel is wound into coils disposed consecutively close to each other on a cylindrical forming support. A pusher element urges each coil formed on the forming support against the previously formed coils causing translation of same to a cutter. Following cutting of the coils, a continuous semifinished product is obtained which has elongated reinforcing elements disposed parallel and close to each other and transversely of the longitudinal extension of the semifinished product.
摘要:
An apparatus for manufacturing for a rubber sheet reinforced with a cord, it consists of a first cylinder formed to wrap around a rubber coated cord on a surface of the cylinder by rotating centering an axis of the cylinder and a second cylinder that is a smaller cylinder diameter than a cylinder diameter of the first cylinder and is established in parallel aligning a cylinder axis direction to the first cylinder, spirally winding continuously a great number of rubber coated cords on the surface of the cylinder contacting with each other by transferring the rubber coated cord from the first cylinder to the second cylinder.
摘要:
A topping sheet forming method includes: a feeding and division step of feeding a textile original fabric, obtained by weaving longitudinally aligned tire cords into a cord fabric by use of weft yarns, and cutting off the weft yarns in predetermined widthwise positions to divide the textile original fabric into a plurality of narrow textile original fabrics; and a topping step of topping at least one surface of each of the narrow textile original fabrics with unvulcanized rubber.
摘要:
A continuous process is disclosed for the formation of ringshaped pieces of reinforced rubber, useful as breakers in pneumatic tires. A rubber band having reinforcing elements or a plurality of said bands is wound around a cylindrical support in a cylindrical spiral shape. Certain portions of the cylindrical support are moved from the formation area to an exit area at such a speed synchronized with the reels containing the rubber band to result in a tubular body of uniform thickness and indefinite width. The tubular body is then cut into ring-shaped pieces and removed while the moving portions of the cylindrical support are recycled to the formation area. The apparatus is also disclosed. The moveable portions can be cylindrical, flexible metallic frames; cylindrical strips connected by chains or thin steel bands sustained by supports which are solid with the fixed part of the cylindrical support. A preferred embodiment has part of the moveable portions recycled within a defined cylindrical sector but outside the shaft.
摘要:
A reinforced tire fabric comprising an elastomeric body portion in which a plurality of helically formed, single filament wires constitute the reinforcing. The helix delineated by each reinforcing wire has a relatively long lay and the diameter thereof is preferably no greater than three times the diameter of the wire itself. The wire filaments may be cold formed into their respective helices by being drawn through relatively rotatable orifice means-adjacent filaments preferably being of opposite hand-and encapsulated into a continuously extruded ribbon that is manipulated and appropriately severed to form the fabric. The ribbon may be wound into an annulus that is subsequently slit into a ply strip, or successive lengths of the ribbon may be joined into a ply strip. By either approach the bias of the reinforcing filaments in the finished tire may be preselected.
摘要:
A tire containing a pair of beads, at least one carcass ply extending from one bead to the other bead forming a pair of sidewall areas of the tire and a tread area of the tire, and at least one layer of a knit fabric in the sidewall area of the tire, where the knit fabric has a warp and weft direction and is a double cord stitch knit fabric. A method of making the fabric and tire are also disclosed.
摘要:
This invention concerns the manufacture of a layer of elastomeric material to form part of a pneumatic tire, and the manufacture of a reinforced elastomeric layer.According to the invention a layer of elastomeric material is formed as a progressive helical winding along a mandrel. The layer may be transferred in cylindrical form to a tire carcass building former to constitute an inner lining for a tire carcass, or a reinforcement filament may be wound over the layer producing a cylindrical reinforced layer which is cut to produce a ply of coated fabric.