Patent ID: 8530732

Claim:
A hammer device for an electronic keyboard instrument, including a hammer support, and a plurality of hammers which are supported by the hammer support in a state arranged side by side in a left-right direction and are each configured to pivotally move in accordance with depression of an associated key, wherein the hammer support comprises: a plurality of partition walls arranged in the left-right direction in a manner spaced from each other with a predetermined first width therebetween, for partitioning between each adjacent ones of the hammers; a plurality of fulcrum shaft portions each extending between each adjacent ones of said partition walls in the left-right direction and pivotally supporting an associated one of the hammers; and left and right stoppers provided in the vicinity of respective left and right ends of each of said fulcrum shaft portions and arranged in the left-right direction in a manner spaced from each other with a predetermined second width which is smaller than the first width, wherein each hammer is formed to have an arm-like shape extending in the front-rear direction, and comprises: an engaging portion formed in a rear end of the hammer and having a lateral width dimension smaller than the second width, for being pivotally and removably engaged with said fulcrum shaft portion; an actuator portion provided forward of said engaging portion and configured to press a key switch for detecting key depression information on an associated key, by pivotal motion of the hammer caused by depression of the associated key, and left and right protruding portions protruding from left and right side surfaces of the hammer, respectively, at respective locations close to said actuator portion, and wherein when mounting the hammer to the hammer support, before said engaging portion is engaged with said fulcrum shaft portion, said left and right protruding portions are brought into abutment with said respective left and right stoppers to thereby prevent said actuator portion from being brought into contact with said fulcrum shaft portion.