Patent ID: 7265283

Claim:
A string-striking device for a piano comprising: a long weight lever, one for every key, which is disposed along a length direction of the key at an upper part on a side opposite to a playing side of the key and which is arranged such that one end of the weight lever is fixed to a piano body so as to allow the weight lever to freely swing up and down, and the other open end, which can be vertically displaced, is brought into contact with an upper surface of the key and applies its own weight on the key; a long lifting rail disposed between the weight lever and the key so that the lifting rail extends over a plurality of keys and is fixed to the piano body in such a manner that, by lifting the weight levers, the lifting rail can displace the weight levers from a normal position, where the levers can touch the keys, to a holding position, where the levers are separated from the keys; a first end of a connecting member connected to the lifting rail and an other end extending outside the piano, the lifting rail being displaceable by operating the other end of the connecting member outside the piano; and the other end of the connecting member being a playing pedal.