Search International and National Patent Collections

1. (WO2018104612) DRUM FOR PRODUCING A TYRE BLANK OR COMPONENT

Pub. No.:    WO/2018/104612    International Application No.:    PCT/FR2017/053275
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Wed Nov 29 00:59:59 CET 2017
IPC: B29D 30/24
Applicants: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
Inventors: DRUET, Michel
OULION, Denis
Title: DRUM FOR PRODUCING A TYRE BLANK OR COMPONENT
Abstract:
A drum for producing a tyre blank or component that comprises a shaft that is movable in rotation relative to the central axis of the drum, sectors forming a circumferential surface of the drum, expansion means suitable for moving the sectors in the radial direction (64) of the drum such that, at any given time during the movement, all of the sectors extend at the same distance from the axis, said expansion means comprising a cam (7), said cam comprising at least one profile (66) that cooperates with a cam follower. According to the invention, the cam follower comprises a prism-shaped roller (5).