Keyboard apparatus
AssigneeYamaha Corporation
InventorAkito Ohba
Life of this patent
Estimating the term…
Abstract
A keyboard apparatus includes a plurality of keys each rotatable with a predetermined stroke, a support assembly which includes a support with one side rotatably arranged with a support rail and a jack with the one side rotatably supported by the support, and rotates with depression of any of the plurality of keys, a hammer unit which is operated by receiving an action of the jack, a shank rail which rotatably supports the hammer unit, and a jack stopper which makes contact with the jack which rotates with the depression of any of the plurality of keys, the jack stopper being placed on a rotation path of the jack and provided to a fixing portion which does not rotate with the depression any of the plurality of keys.
Claims9
A keyboard apparatus, comprising:
- a plurality of keys each rotatable with a predetermined stroke;
- a support assembly which includes a support with a first side rotatably arranged with a support rail and a jack with the first side rotatably supported by the support, and rotates with depression of any of the plurality of keys;
- a hammer unit which is operated by an action of the jack;
- a shank rail which rotatably supports the hammer unit;
- a regulating portion which extends from the shank rail and makes contact with the support assembly;
- and
- a jack stopper which makes contact with the jack which rotates with the depression of any of the plurality of keys,
- wherein the jack stopper is placed on a rotation path of the jack and protrudes from the shank rail which does not rotate with the depression of any of the plurality of keys, and
- wherein the shank rail, the regulating portion, and the jack stopper are arranged on a same side with respect to the jack.
Dependencies are inferred from the claim text.