DEVICE FOR CAP SCREWING AND UNSCREWING

摘要

The present invention relates to a device for cap screwing-unscrewing that is composed of a collar (1, 10) provided on the internal surface (1a) with a series of seats (2, 20) and comprises corresponding catches (3, 30) contained with possibility of sliding inside the seats (2, 20) together with a spring (M) that pushes them towards the centre of the collar (1, 10).