DISPOSITIVO PER INFILARE RONDELLE O OGGETTI SIMILARI SU GAMBI DI VITI O SIMILI

摘要

A device for slipping washers and like objects onto the shanks or stalks of screws and like articles comprises a couple of discs which are rotated integrally together. The top disc has peripheral hollow spaces to which the screws are fed to be conveyed at a certain angle hung by their heads. The bottom disc has vertical dowels arranged on a circumference having a radius equal to that of the circumference containing the axes of the hung screws. To a point of the periphery of the bottom disc washers are fed to enter an upward sloping circular channel. The dowels are passed through a central longitudinal slit of said circular channel in such a way that each screw may push a washer to ascend such channel in order that the washer may be slipped onto the stalk of the respective screw. Preferably, the washers are forcibly driven by a feeding mechanism into said circular channel and a safety system is provided to prevent a screw from being introduced into a hollow space of the top disc if the circular channel has not yet received a washer intended to be slipped onto the screw concerned.