Keyboard device
AssigneeRoland Corporation
InventorsYukihide Takata, Shiro Uno
Life of this patent
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Abstract
A keyboard device is provided including a chassis; a mass body which is turnably installed in the chassis; and transmission means which transmits a driving force in response to key touching of a key to the mass body, wherein the mass body includes an inner wheel and an outer wheel installed on a radially outward side of the inner wheel and is configured to serve as a component for transmitting a torque in one-way direction between the inner wheel and the outer wheel. The transmission means is engaged with one of the inner wheel and the outer wheel of the mass body. The torque is transmitted between the inner wheel and the outer wheel of the mass body at a time of key touching. The torque is not transmitted between the inner wheel and the outer wheel of the mass body at a time of key release.
Claims20
A keyboard device comprising:
- a chassis;
- a mass body which is turnably installed in the chassis;
- and
- a transmission member which comprises a main body part and transmits a driving force in response to key touching of a key to the mass body,
- wherein the mass body comprises an inner wheel and an outer wheel installed on a radially outward side of the inner wheel and is configured to serve as a component for transmitting a torque in one-way direction between the inner wheel and the outer wheel,
- wherein the transmission member is engaged with one of the inner wheel and the outer wheel of the mass body,
- wherein the torque is transmitted between the inner wheel and the outer wheel of the mass body at a time of key touching, and
- wherein the torque is not transmitted between the inner wheel and the outer wheel of the mass body at a time of key release.
A method for detecting key touching information in a keyboard device, the method comprising:
- transmitting a driving force in response to key touching of a key using a transmission member comprising a main body part to a mass body which is disk-shaped and turnably installed in a chassis;
- and
- detecting key touching information by a sensor through detecting a rotation state of the mass body which is turned by the transmitted driving force.
A method for applying a key touching feeling in a keyboard device, the method comprising:
- transmitting a driving force in response to key touching of a key using a transmission member comprising a main body part to a mass body which is turnably installed in a chassis;
- and
- a key touching feeling applying step turning the mass body by the transmitted driving force and applying a key touching feeling due to a torque in accordance with the turning of the mass body,
- wherein the mass body in the key touching feeling applying step comprises an inner wheel and an outer wheel installed on a radially outward side of the inner wheel and is configured to serve as a component for transmitting a torque in one-way direction between the inner wheel and the outer wheel,
- wherein the transmission member is engaged with one of the inner wheel and the outer wheel of the mass body, and
- wherein in the key touching feeling applying step, the torque is transmitted between the inner wheel and the outer wheel of the mass body at a time of key touching and the torque is not transmitted between the inner wheel and the outer wheel of the mass body at a time of key release.
Dependencies are inferred from the claim text.