Patent ID: 7332663
Filing Date: 2008-02-19
Classification: G10C

Abstract:
1. A keyboard apparatus in which a plurality of keys are mounted on a key mounting part of a key mounting member, the apparatus comprising a key unit having: key main bodies of the plural keys to which a key depression operation is performed; a common key support part via which the key main bodies are commonly supported on the key mounting part to be pivotable; and coupling parts via which the respective key main bodies are supported by the common key support part to be pivotable in a key depression/release direction, wherein the key unit is composed of a white key unit in which the keys are white keys and a black key unit in which the keys are black keys, the white key unit and the black key unit being formed separately, wherein the key main bodies of the white keys is longer in longitudinal length than the key main bodies of the black keys, wherein, in the black key unit, a total width in a key arrangement direction of each of the coupling parts is wider than a key width of the key main bodies of the black keys, whereby the coupling parts restrict yawing in a key width direction when the black keys are depressed/released, and wherein, in the white key unit, each of the coupling parts is narrower in total width in the key arrangement direction than each of the coupling parts in the black key unit, and guide parts are provided on free end sides of the white keys to restrict yawing in the key arrangement direction and guide a key depression/release movement.