Abstract: A keyboard device has a plurality of keys, wherein each key includes: a base member formed of a resin material in a box shape having an open lower surface opposite a touching surface, the base member having a rotatably supported base end side; and a pair of wood members formed of a wood material in a rectangular plate shape, disposed respectively on left and right side surfaces of the base member, wherein at least one of the pair of wood members has a thickness dimension within a range of 2 mm or more and 14.5 mm or less.

Abstract: The invention provides a keyboard device of an electronic musical instrument, wherein a hammer can be installed correctly by a simple operation of pressing a key. The keyboard device of the electronic musical instrument includes: a chassis; a key disposed rotatably on the chassis and extending from the rear to a front; a support shaft disposed on the chassis in front of the rotation center; a hammer rotating in conjunction with the key along with pressing on the front of the key; a retaining hole formed through the hammer and retaining the support shaft; a guide groove guiding the support shaft in the retaining hole; and a shifting means, shifting from a temporarily secured state to a retained state, and pressing the hammer in the temporarily secured state toward the rear to shift the hammer to the retained state along with the pressing on the front of the key.

Abstract: The invention provides a keyboard device of an electronic musical instrument, wherein a hammer can be installed correctly by a simple operation of pressing a key. The keyboard device of the electronic musical instrument includes: a chassis; a key disposed rotatably on the chassis and extending from the rear to a front; a support shaft disposed on the chassis in front of the rotation center; a hammer rotating in conjunction with the key along with pressing on the front of the key; a retaining hole formed through the hammer and retaining the support shaft; a guide groove guiding the support shaft in the retaining hole; and a shifting means, shifting from a temporarily secured state to a retained state, and pressing the hammer in the temporarily secured state toward the rear to shift the hammer to the retained state along with the pressing on the front of the key.

Abstract: The present invention provides an electronic keyboard instrument capable of strongly supporting an upper panel covering the rear of a key while suppressing shaking of the key and an increase in device size. An electronic keyboard instrument (1) of the present invention includes: a key (3), rotating about a rotating shaft (24); an upper panel (4), covering the rear of the key (3) from above; a chassis (2), disposed in a position to interpose the rear of the key (3) between the chassis (2) and the upper panel (4); a through hole (32a), passing through the rear of the key (3) to communicate a side toward the chassis (2) with a side toward the upper panel (4); and a rear guide (25), passing from the chassis (2) through the through hole (32a) to extend toward the upper panel (4) and supporting the upper panel (4).

Abstract: The present invention provides an electronic keyboard instrument capable of strongly supporting an upper panel covering the rear of a key while suppressing shaking of the key and an increase in device size. An electronic keyboard instrument (1) of the present invention includes: a key (3), rotating about a rotating shaft (24); an upper panel (4), covering the rear of the key (3) from above; a chassis (2), disposed in a position to interpose the rear of the key (3) between the chassis (2) and the upper panel (4); a through hole (32a), passing through the rear of the key (3) to communicate a side toward the chassis (2) with a side toward the upper panel (4); and a rear guide (25), passing from the chassis (2) through the through hole (32a) to extend toward the upper panel (4) and supporting the upper panel (4).

Abstract: A keyboard device has a plurality of keys, wherein each key includes: a base member formed of a resin material in a box shape having an open lower surface opposite a touching surface, the base member having a rotatably supported base end side; and a pair of wood members formed of a wood material in a rectangular plate shape, disposed respectively on left and right side surfaces of the base member, wherein at least one of the pair of wood members has a thickness dimension within a range of 2 mm or more and 14.5 mm or less.