Venting unit (6) for a vulcanizing mould of a pneumatic vehicle tyre, with a mould inner side (1a), a housing (10), which can be pressed into a bore in the vulcanizing mould, and a valve insert, which is positioned in the housing and is movable with respect to the latter under spring force and which has a valve stem (8) and a valve head (9), which has an upper side (11) facing the green tyre to be vulcanized, wherein the valve head comes into contact with the surface of the green tyre during the forming process of the green tyre and has a planar base area (12) on the inner side of the mould. The upper side (11) of the valve head has a surface-covering, uneven crest-and-trough structure (13) with an area-related average roughness Sa in accordance with DIN EN ISO 25178 of 0.20 mm to 0.60 mm and a maximum height difference Sz in accordance with DIN EN ISO 25178 of 0.20 mm to 2.25 mm, wherein the deepest points of the trough structures are at or above the level of the base area.


    Access

    Download


    Export, share and cite



    Title :

    ENTLÜFTUNGSEINHEIT, VULKANISATIONSFORM FÜR EINEN FAHRZEUGLUFTREIFEN UND FAHRZEUGLUFTREIFEN


    Additional title:

    VENTING UNIT, VULCANIZING MOULD FOR A PNEUMATIC VEHICLE TYRE AND PNEUMATIC VEHICLE TYRE
    UNITÉ DE VENTILATION, MOULE DE VULCANISATION POUR UN PNEUMATIQUE DE VÉHICULE ET PNEUMATIQUE DE VÉHICULE


    Contributors:

    Publication date :

    2024-08-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / B60C VEHICLE TYRES , Fahrzeugreifen



    ENTLÜFTUNGSEINHEIT, VULKANISATIONSFORM FÜR EINEN FAHRZEUGLUFTREIFEN UND FAHRZEUGLUFTREIFEN

    GLEESON RUAIDHRI / PANG-JIAN-XIANG EDWIN | European Patent Office | 2023

    Free access

    Vulkanisationsform für einen Fahrzeugluftreifen sowie darin vulkanisierter Fahrzeugluftreifen

    SCHLITTENHARD JAN / LANGE HOLGER / SENG MATTHIAS | European Patent Office | 2024

    Free access

    FAHRZEUGLUFTREIFEN UND VULKANISATIONSFORM

    KRISTEN FLORIAN / LUTZ ANDRÉ / VOLKMANN UTE | European Patent Office | 2024

    Free access

    VULKANISATIONSFORM UND FAHRZEUGLUFTREIFEN

    SCHLITTENHARD JAN / LANGE HOLGER / SENG MATTHIAS | European Patent Office | 2018

    Free access

    Vulkanisationsform für Fahrzeugluftreifen und in einer Vulkanisationsform vulkanisierter Fahrzeugluftreifen

    HOPPE NICHOLAS / DZICK JÜRGEN / VOELKER BERT | European Patent Office | 2022

    Free access