Multiple key mechanism with noise damping - has yoke supported on key knob and socket, tilting key action and damper in contact with yoke

摘要

A multiple key mechanism with noise damping has a yoke (26) supported on the key knob on both sides of the pin guide and near the outer edges as well as on the key socket to allow pin actuation essentially free of tilting moments. The free ends of the yoke arms are bent parallel to the base section (28) and slide laterally into a holder when the key is depressed. The base section rotates in mechanical carriers (22) about an off-centre axis parallel to the longitudinal axis. A damping (50) device is mounted on the mechanism and in contact with the yoke. ADVANTAGE - Provides permanent suppression of acoustic vibrations caused by key depressions.