A self-centering device for tire-changing machines (1) comprising: a turntable (10) for support and fixation of wheels; a plurality of spikes (11), also known as jaws, having a body (17) that defines a base (18) and an opposite engaging tooth (19) and being slindingly arranged on a work surface (10A) of said turntable (10) between an active rim-holding position and an inactive rim-releasing position; means (12) for simultaneous actuation of said spikes (11) from said active position to said inactive position and vice versa; guide means (13, 14) formed in said turntable (10) for guiding said spikes (11); slider means (21, 23) for causing low-friction sliding of said spikes (11) being interposed between said spikes (11) and said turntable (10).

    La présente invention concerne un dispositif d'autocentrage destiné à des machines (1) à changer les pneus comprenant : une plaque tournante (10) permettant de supporter et de fixer des roues ; une pluralité de pointes (11), également connues sous le nom de mâchoires, comportant un corps (17) qui définit une base (18) et une dent (19) de mise en prise opposée et qui sont agencées de manière coulissante sur une surface de travail (10A) de ladite plaque tournante (10) entre une position active de maintien de la jante et une position inactive de libération de la jante ; un moyen (12) permettant un actionnement simultané desdites pointes (11) de ladite position active à ladite position inactive, et inversement ; un moyen de guidage (13, 14) formé dans ladite plaque tournante (10) de sorte à guider lesdites pointes (11) ; un moyen coulissant (21, 23) permettant d'entraîner un glissement à faible frottement desdites pointes (11) interposés entre lesdites pointes (11) et ladite plaque tournante (10).


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    Title :

    SELF-CENTERING DEVICE FOR TIRE-CHANGING MACHINES


    Additional title:

    DISPOSITIF D'AUTOCENTRAGE POUR MACHINES À CHANGER LES PNEUS


    Contributors:

    Publication date :

    2016-09-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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