Patent ID: 8397781

Claim:
A body ply turn-up device for turning up at least one of both width-end portions of a body ply expanded into a toroidal shape on an operating shaft to wrap a bead core set at at least one of axially opposite sides of an expanded portion of the body ply, the device comprising: a plurality of arm components circumferentially arranged to be movable in the axial direction of the operating shaft and to be pivotable radially of the operating shaft; guide members respectively supported at both sides of each arm component on an end portion of each arm component to be rotatable about an axis parallel to a pivot axis of each arm component; coil springs interposed in respective spaces between guide members respectively supported on adjacent arm components, the coil springs being attached at each of their ends to one of the guide members; pressing members provided to supplementarily cover respective spaces between the coil springs and rotatably supported on the arm components behind the coil springs; and elastic members respectively covering at least the outer surfaces of the coil springs for performing pressing at spaces between spiral wire portions thereof when the arm components are pivoted radially outward of the operating shaft; wherein the plurality of arm components includes a plurality of link members supported at respective extreme end portions of the arm components and being pivotable respectively about respective axes parallel to the axes about which the arm components are pivotable and located between the coil springs and pressing members, the link members being formed with bifurcated portions in correspondence to the respective spaces between the adjoining coil springs; and the pressing members comprise roller members which are arranged to be offset behind the coil springs and are rotatably supported respectively in the bifurcated portions of the link members.