Keyboard device, electronic piano and hammer support method
AssigneeRoland Corporation
InventorYukihide Takata
Life of this patent
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Abstract
A keyboard device according to the disclosure includes: a key which has a back end side swingably supported; a hammer with which the key is rotatably engaged and which rotates in conjunction with swinging of the key; and a support member which has a support surface that slidably supports an outer peripheral surface of a rotation shaft of the hammer, in which the support surface inclines with respect to a horizontal direction, and the rotation shaft of the hammer ascends or descends on the support surface during swinging of the key.
Claims20
A keyboard device, comprising:
- a key which has a back end side swingably supported;
- a hammer with which the key is rotatably engaged and which rotates in conjunction with swinging of the key;
- and
- a support member which has a support surface that slidably supports an outer peripheral surface of a rotation shaft of the hammer,
- wherein the support surface inclines with respect to a horizontal direction, and
- the rotation shaft of the hammer ascends or descends on the support surface during swinging of the key.
A hammer support method for a keyboard device that comprises a key which has a back end side swingably supported, a hammer with which the key is rotatably engaged and which rotates in conjunction with swinging of the key, and a support member which has a support surface that supports a rotation shaft of the hammer, the hammer support method comprising:
- slidably supporting an outer peripheral surface of the rotation shaft of the hammer on the support surface that inclines with respect to a horizontal direction;
- and
- causing the rotation shaft of the hammer to ascend or descend on the support surface during swinging of the key.
An electronic piano, comprising:
- a keyboard device, comprising:
- a key which has a back end side swingably supported;
- a hammer with which the key is rotatably engaged and which rotates in conjunction with swinging of the key;
- and
- a support member which has a support surface that slidably supports an outer peripheral surface of a rotation shaft of the hammer,
- wherein the support surface inclines with respect to a horizontal direction, and
- the rotation shaft of the hammer ascends or descends on the support surface during swinging of the key.
Dependencies are inferred from the claim text.