HAMMER MECHANISM HAVING A KEY DEVICE AND HAMMER DEVICE, FOR STRIKING A STRING OF A KEYBOARD INSTRUMENT, HAVING AT LEAST ONE MODIFICATION FOR ACHIEVING A HIGH STRIKE REPETITION FREQUENCY

摘要

The invention relates to a key device (12) and to a hammer device (16), which in assembly form a hammer mechanism (10) for striking a string of a keyboard instrument. The key device has a key body (30) formed of a basic material and has a key body full weight, which is determined by way of a key body full volume predetermined by the outer dimensions of the key body and a specific weight of the base material. The hammer device has a total weight and at least one portion (46, 50, 51) that is produced of a basic material suitable for said portion. According to the invention, at least one modification is carried out on the key body (30) and/or on the hammer device (16) such that in/on the device (12, 16), at least one recess or partial removal of base material is formed, and/or that in at least one portion of the device (12, 16), the base material is replaced by a substitute material having a specific weight that is lower than the specific weight of the base material. As a result of said modification, the weight of the device with respect to the weight of the device without modification is reduced by at least 10%.