Keyboard for piano-type instrument
Номер патента: DE4213469A1
Опубликовано: 28-10-1993
Автор(ы): Ulrich Hermann
Принадлежит: HERMANN ULRICH DIPL MUSIKER
Опубликовано: 28-10-1993
Автор(ы): Ulrich Hermann
Принадлежит: HERMANN ULRICH DIPL MUSIKER
Реферат: An adjustable tension spring (1), long compared to the key lever (2), runs parallel to it, forming a return spring and determining the resistance to playing. One end is fixed to a spring-mounting roughly at the middle of the lever, and the other adjustably to the frame. The latter end can be coupled to an adjusting screw (4) via a screw thread (3) or swivel joint. The spring can be enclosed by elastic vibration-dampening material.
Keyboard for a musical instrument, keyboard musical instrument and method for adapting a keyboard of a musical instrument
Номер патента: DE102014119672A1. Автор: Anmelder Gleich. Владелец: Andreas Belthle. Дата публикации: 2016-06-30.