Patent classifications
B29D30/16
Pressure device for tire constituent member and tire forming apparatus
Each of a plurality of pressure rolls is displaced around the shaft member and pressurizes the tire constituent member. Each of a plurality of supporting parts supports the pressure roll rotatably from the inside of the pressure roll and is displaced integrally with the pressure roll. A plurality of pressure holes are formed in a plurality of points of the shaft member corresponding to positions of the plurality of pressure rolls so as to extend in the pressurization direction for the tire constituent member. Each of a plurality of moving members projects in the pressurization direction from the pressure hole so as to pressurize the pressure roll. Each of a plurality of supply pipes is arranged in the inside space around the shaft member so as to each supply the pressurizing medium for pressurizing the moving member into the pressure hole.
Pressure device for tire constituent member and tire forming apparatus
Each of a plurality of pressure rolls is displaced around the shaft member and pressurizes the tire constituent member. Each of a plurality of supporting parts supports the pressure roll rotatably from the inside of the pressure roll and is displaced integrally with the pressure roll. A plurality of pressure holes are formed in a plurality of points of the shaft member corresponding to positions of the plurality of pressure rolls so as to extend in the pressurization direction for the tire constituent member. Each of a plurality of moving members projects in the pressurization direction from the pressure hole so as to pressurize the pressure roll. Each of a plurality of supply pipes is arranged in the inside space around the shaft member so as to each supply the pressurizing medium for pressurizing the moving member into the pressure hole.
Method of applying a post cure laminate to a tire
A method of applying a laminate to a tire includes pre-treating a portion of the tire and placing the laminate on at least the pre-treated portion of the tire. The method further includes placing an electrical heating element on top of the laminate and placing a pressure element over the electrical heating element and the laminate. The method also includes applying heat and pressure to the laminate using the electrical heating element and the pressure element to permanently adhere the laminate to the tire.
GROOVED-CORE TOOLING FOR MANUFACTURING PNEUMATIC TIRES REINFORCED BY STAYS PASSING THROUGH THE INFLATION CAVITY
The tooling is suitable for manufacturing a toroidal tire that has a crown, a first annular bead and a second annular bead, together with a first sidewall and a second sidewall. The, tool has a core which is provided with groove-type passages that are suitable for receiving reinforcing elements, referred to as stays. The stays are designed to be permanently incorporated into the structure of the tire and to each extend in the cavity of the tire, thereby connecting a crown anchor point situated in the crown of the tire to a lateral anchor point situated in one of the sidewalls or beads of the tire.
Method for forming belt-like rubber member
A method for forming a belt-like rubber sheet S by extruding rubber on a drum outer peripheral surface 3a by an extruder 2 includes: a front end forming step for forming a front end S1 having a wedge-shaped cross section; an intermediate part forming step for forming an intermediate part S2 having a desired thickness; and a rear end forming step for forming a rear end S3 having a wedge-shaped cross section by gradually decreasing an extrusion amount of the rubber to zero from a predetermined extrusion amount in a predetermined time, gradually decreasing the rotational speed of the drum outer peripheral surface 3a to zero from a predetermined rotational speed in the predetermined time, and gradually decreasing a distance from the drum outer peripheral surface 3a to a die 21 to an extrusion end distance from a predetermined distance in the predetermined time.
Strip-winding method and strip-winding apparatus
The strip-winding method, includes: a first step of supplying a strip to a wound body including an inclined part; and a second step of moving a winding roller along an outer circumferential surface of the wound body within one plane, the winding roller being capable of pressing the strip on the wound body, and of winding the strip on the outer circumferential surface of the wound body. In the second step, the roller inclination angle of the rotational axis line of the winding roller with respect to the one plane is changed, and the roller inclination angle at the time the strip is wound around the inclined part is set to be greater than the roller inclination angle at the time the strip is wound around a maximum diameter position of the wound body.
Strip-winding method and strip-winding apparatus
The strip-winding method, includes: a first step of supplying a strip to a wound body including an inclined part; and a second step of moving a winding roller along an outer circumferential surface of the wound body within one plane, the winding roller being capable of pressing the strip on the wound body, and of winding the strip on the outer circumferential surface of the wound body. In the second step, the roller inclination angle of the rotational axis line of the winding roller with respect to the one plane is changed, and the roller inclination angle at the time the strip is wound around the inclined part is set to be greater than the roller inclination angle at the time the strip is wound around a maximum diameter position of the wound body.
Tire building applicator members and systems
An applicator assembly for applying a cord to a tire-building surface that rotates during tire construction. The applicator assembly includes an applicator member to apply the cord. A first rotary device rotates the applicator member about a first axis that is transverse to the surface. A first translation device moves the applicator member in a first linear path relative to the surface. The applicator member may include a roller and/or a resilient member. A second rotary device may rotate the applicator member and the first rotary device around a second axis substantially perpendicular to the first axis. A second translation device may move the applicator member, the first rotary device, the second rotary device, and the first translation device. A system for applying the cord to a core member may further include a spindle to rotate the core member about the axis of rotation.
MANUFACTURING METHOD AND FORMING DEVICE FOR TIRE
Provided are a tire manufacturing method and a tire forming device. One band-like strip material is sequentially supplied through one strip material supply line. By repeating a step of bonding the strip material placed in an arrangement unit by a holding machine to a forming surface on the outer circumferential side of the rigid core using a bonding mechanism, a belt layer in which the strip materials are arranged in the circumferential direction with reinforcing cords inclined at a predetermined inclination angle with respect to the circumferential direction of the rigid core. The strip material held by the holding machine is turned upside down and placed on the arrangement unit to construct a belt multilayer structure in which the inclination directions of the reinforcing cords of vertically adjacent belt layers are opposite to each other, thereby forming a green tire including the belt multilayer structure.
MANUFACTURING METHOD AND FORMING DEVICE FOR TIRE
Provided are a tire manufacturing method and a tire forming device. One band-like strip material is sequentially supplied through one strip material supply line. By repeating a step of bonding the strip material placed in an arrangement unit by a holding machine to a forming surface on the outer circumferential side of the rigid core using a bonding mechanism, a belt layer in which the strip materials are arranged in the circumferential direction with reinforcing cords inclined at a predetermined inclination angle with respect to the circumferential direction of the rigid core. The strip material held by the holding machine is turned upside down and placed on the arrangement unit to construct a belt multilayer structure in which the inclination directions of the reinforcing cords of vertically adjacent belt layers are opposite to each other, thereby forming a green tire including the belt multilayer structure.