Vmi Epe Holland B.v.

Henk Huisman

Martin De Graaf

Wubbo Pieter De Vries

Heinz Gutknecht

Martinus Regterschot

Johannes A Kuijpers

Piet Van Berkum

Tire drum () including a turn-up mechanism for use in building an unvulcanized tire having tire components of rubber or provided with reinforcement cords and two bead cores which either may or may not be provided with a bead filling strip, which tire drum is provided with a central axis (), two ring segments () placed around the axis and spaced apart each for supporting a bead core (), means for radially expanding the part of the tire components that is situated within the ring segments, in which the tire building drum on either side outside of the ring segments is provided with a set of radially extending hinging arms (), in which each arm is provided with an end oriented towards the ring segment which end has a first turn-up means, such as a first roller (), means () for axially and radially moving each set of arms from a first position in which the first rollers of the set of arms form a virtually closed ring into an expanded second position for pressing the part of the tire components situated outside of the ring segments against the expanded part of the tire components situated within the ring segments, in which the arms at the ends near the first rollers are provided with moveable support surfaces () which in the first position form a virtually closed cylindrical surface for supporting the tire components.

Tire building drum provided with a turn-up device

Assembly of devices for building a green tire for vehicles

Apparatus for assessing the weld in a belt layer for a radial pneumatic tire in which the belt layer has been disposed onto a rotary drum, comprising an apparatus for directing at least one laser beam towards the drum and the belt layer, said laser beam being directed obliquely with respect to the perpendicular on the belt layer and the drum, and a camera for viewing the position of the projection of the laser beam on the drum and the belt layer.

Apparatus for assessing the weld in belt layers for radial pneumatic

Growing community of inventors

Da Epe, Netherlands

Henk Huisman