摘要:
A support, preferably made of sheet metal, with a U-shaped section and a flat section and provided with a number of hammers (18) equal to the number of keys (22), which hammers (18) are made integral with the support by means of specific pivoting elements (21), are preferably made of metal and suitably shaped and balanced and capable of receiving the keys; the portion of the hammer (18) entering the key (22) being coated with a rubber element provided with a little step (25) which, when the key (22) is depressed and the thrust element inside the key (22) comes into contact with the step (25), produces a slight release, similar to the feeling of escapement one perceives when playing a conventional piano.
摘要:
A support, preferably made of sheet metal, with a U-shaped section and a flat section and provided with a number of hammers (18) equal to the number of keys (22), which hammers (18) are made integral with the support by means of specific pivoting elements (21), are preferably made of metal and suitably shaped and balanced and capable of receiving the keys; the portion of the hammer (18) entering the key (22) being coated with a rubber element provided with a little step (25) which, when the key (22) is depressed and the thrust element inside the key (22) comes into contact with the step (25), produces a slight release, similar to the feeling of escapement one perceives when playing a conventional piano.
摘要:
This invention relates to a device for transforming, with limited and fast operations, a rotating-plate press into a rotating-insert press, or vice versa, comprising a plate for assembling the molds (1), with a hole in the centre; a rotating flange (5) and a cylinder (7) integral with the rotating flange; a plunger (8) housed inside the cylinder (7); a support (10) for fastening the rotating insert (17) integral with the head of the cylinder (7); and a hydraulic system (12) for moving the plunger.