MACINADOSATORE PER GRANI O CHICCHI, AD ESEMPIO DI CAFFÈ, CON DISPOSITIVO DI AMPLIFICAZIONE DEL CAMPO DI REGOLAZIONE DELLA GRANULOMETRIA DI MACINATURA

• Main Authors: Michielan, Mauro, Motta, Michele
• Format: Patent
• Language: Italian
• Published: 25.08.2020

A grinder-doser (4) for grains or beans, for example of coffee, comprising a body (8) which encloses a first grinder (12) supported by a relative first grinder holder (16), and a second grinder (20) supported by a relative second grinder holder (24), the first and second grinders (12,20) being facing along an axial direction (X-X) and defining a grinding chamber (28) for coffee beans, and an adjustment device (40) of the relative axial distance (44) between said grinders (12, 20) provided with a screw or ring nut (48) comprising a first threaded portion (52), having a first pitch (60) and being engaged with a first nut (64), and a second threaded portion (56) having a second pitch (68) and being engaged with a second nut (72). The first nut (64) is associated with the axially fixed body (8) of the grinder-doser (4) and the second nut (64) is operatively associated with one of said grinders (12,20), movable along the axial direction (X-X) with respect to the other grinder (20,12), so as to be able to vary the relative axial distance (44) between said grinders (12,20).