Toyo Tire Corporation

Junji Itakura

Takuya Ishida

A winding method includes: attracting a sheet-like beltonto a tableby multiple attracting meanslined up in a longitudinal direction of the sheet-like belt; and winding the sheet-like beltaround a winding cylinderby moving the winding cylinderin the longitudinal direction of the sheet-like beltwhile rotating the winding cylinderabove the sheet-like beltand by cancelling attraction by the attracting meansone after another from attracting meansto which the winding cylinderhas moved.

Winding method and winding device of sheet-like belt

A single sheet-like belt 8from which a single tire component can be formed, is held on an outer circumferential surface of a winding cylinderThe sheet-like rubber member 8which is held by the winding cylinderis removed from the winding cylinderby rotation of a drumand adhered to an outer circumferential surface of the drumso as to manufacture a tire component 8At the time, the sheet-like belt 8is moved from the winding cylinderto the drumvia a removing rollerthat is arranged above a common tangent Q between the drumand the winding cylinder

Manufacturing method of tire component and manufacturing device of tire component

A manufacturing method includes: cutting out a sheet-like beltby cutting a master rollbetween a master roll tableand a belt table; moving the belt tablecarrying the cut-out sheet-like beltto a winding position of the sheet-like belt; and winding the sheet-like beltaround a winding cylinderat the winding position. The master rollis fixed onto the belt tableby attraction when the master rollis cut between the master roll tableand the belt tableand the belt tableis moved to the winding position of the sheet-like beltwhile keeping the cut-out sheet-like beltfixed onto the belt tableby attraction.

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 tableand a belt table, moving the belt tablecarrying the cut-out sheet-like belt to a winding position of the sheet-like belt, winding the sheet-like belt around a winding cylinderat the winding position, and unwinding the sheet-like belt from the winding cylinderin a place facing a molding drumand forming a cylindrical belt by winding the sheet-like belt around the molding drum

In a winding method of a sheet member for winding a sheet member having an inclined side portioninclined with respect to a longitudinal direction at least on one side in the longitudinal direction around a winding cylinderin more than one turn from a tip end of the inclined side portionas a winding start tip, winding of the sheet member is started in a small-diameter portionof the winding cylinderto which a radial difference is given by providing a stepto make a diameter smaller on one side in an axial direction and larger on the other side in the axial direction.

Winding method and winding cylinder of sheet member

A manufacturing method includes feeding a master rollfrom a master roll tableto a belt table, and cutting the master rollbetween the master roll tableand the belt table. In the step of feeding the master rollfrom the master roll tableto the belt table, the master rollis fed by holding a front part of the master rollby a first handand a rear part of the master rollby a second hand, and the front part of the master rollis continuously held by the first handfrom start to end of the feeding.

Manufacturing method and manufacturing device of sheet-like belt

In one embodiment of an apparatus for manufacturing a rubber sheet, a continuous rubber material is supplied onto a supply conveyor in a meandering state by supplying the continuous rubber material onto the supply conveyor while moving rubber supply device in a reciprocating manner in a roll axial direction. The rubber supply device has a full width moving mode in which the rubber supply device moves in the roll axial direction such that the continuous rubber material has a meandering shape of a width corresponding to a width of a rubber sheet, and a partial width moving mode in which the rubber supply device moves in the roll axial direction such that the continuous rubber material has a meandering shape of a width obtained by excluding widths of both edge portions of the rubber sheet from the width of the rubber sheet.

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Itami, Japan

Junji Itakura