Mould fitted with an improved pusher device

A mould comprising:

• a base,
• a removable wedge,
• a belt,
• a pusher device configured to automatically move the base and the belt apart from each other, where
• in a closed position of the mould, the removable wedge vertically bears on the base the belt vertically bears on said removable wedge and on the base, the removable wedge laterally bears against the belt and the removable wedge, the base and the belt delimit a hollow moulding volume,
• wherein the pusher device comprises:
• a first part, forming a pusher, vertically bearing on the base,
• a second part, forming a hook pin, vertically movable between a high position in which the hook pin is at a distance above the pusher and a low position in which the hook pin bears on the pusher,
• a locking set, integral with the belt, which locks the hook pin in the low position, wherein
• the pusher includes a spring which is compressed when the hook pin is in the low position, said spring spring then exerting a pushing force on the hook pin to move it to the high position, and
• the belt has a through hole through which the hook pin is housed, with an upper part of the hook pin extending above the belt when the hook pin is in the high position.