GUIA DO EIXO DE ARTICULACAO NOTADAMENTE PARA O MECANISMO DAS CHAVES DE UM INSTRUMENTO MUSICAL

摘要

This pin guide is mounted on the end of a rotatable rod (1) of the key mechanism of a musical instrument. The rod has at its end a cylindrical bore (17) receiving a spring means (19) and a rotary pivot piece (9) capable of sliding in said bore. The pivot piece (9) has at its outer end a cutout (15) which coaxially receives the tip (13) of a pointed screw (7) screwed into the body of a hinge support ball (3).