Patent ID: 6329585
Filing Date: 2001-12-11
Classification: G10C,G10H

Abstract:
A keyboard musical instrument characterized in that a middle part in the longitudinal direction of a keyboard body having a keyboard portion at its one end is swingably held and, at the same time, a base of a hammer body for striking is pivotally attached to the opposite side of said keyboard portion across the holding point of said keyboard body; a beak-like projecting piece is protrudingly provided in a base end of said hammer body, and at the same time, an engaging stepped portion is formed in an escapement member that is always biased toward said beak-like projecting piece of the hammer body; the pivotally attached portion of said hammer body pivots in accordance with a key striking operation of said keyboard portion, and at the same time, said beak-like projecting piece of said hammer body and said engaging stepped portion of said escapement member engage; and said hammer body performs a striking pivotal operation against a sound source body, and that in at least one of said base end of said hammer body and said escapement member, a pushing-out member for pushing out said escapement member to the opposite side with respect to said hammer body in accordance with the striking pivotal operation of said hammer body to let off the beak-like piece of the hammer body from said engaging stepped portion, and at the same time, integrally forms in said escapement member a control means contactably and separably opposing said hammer body in the striking direction that separates said hammer body from said sound source body and stopping it in the state in which said beak-like projecting piece is let off from said engaging stepped portion.