Key support structure of keyboard device
AssigneeYamaha Corporation
InventorsTetsuya Nishimura, Naoki Nishimura, Yuji Takahashi
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Abstract
A key support structure of a keyboard device includes a first member and a second member that supports the first member. The first member is pivotal about a first axis that extends in a first direction and movable with a degree of freedom of movement in a rolling direction, which is a direction of rotation around a second axis extending in a second direction that is substantially orthogonal to the first direction. the second member restricts a movement of the first member in the first direction, while pivotally supporting the first member about the first axis.
Claims22
A key support structure for a key of a keyboard device, the key support structure comprising:
- a first member integral with the key and disposed at a rear end side of the key, the rear end side being disposed at a hidden portion of the key that is disposed behind an appearance portion of the key that is touchable by a player to press the key;
- and
- a second member that supports the first member,
- wherein the first member is:
- pivotal about a first axis that extends in a first direction;
- movable with a degree of freedom of movement in a rolling direction, which is a direction of rotation around a second axis extending in a second direction that is substantially orthogonal to the first direction, and
- wherein the second member:
- restricts a movement of the first member in the first direction, while pivotally supporting the first member about the first axis;
- and
- contacts the first member at a first contact point and a second contact point, and
- wherein the first member has a degree of freedom of movement in a yawing direction that changes positions of the first and second contact points.
A key support structure for a key of a keyboard device, the key support structure comprising:
- a first member integral with the key and disposed at a rear end side of the key, the rear end side being disposed at a hidden portion of the key that is disposed behind an appearance portion of the key that is touchable by a player to press the key;
- a second member contacting the first member at a first contact point and a second contact point;
- and
- a third member contacting the first member at a third contact point,
- wherein at least one member, among the first member, the second member, and the third member, is slideable at one contact point, among the first, second, and third contact points, and
- wherein, in a state where a first normal vector at the first contact point, a second normal vector at the second contact point, and a third normal vector at the third contact point intersect at a common point, an angle between a pair of neighboring normal vectors, among the first, second, and third vectors, is less than 180 degrees, and
- wherein the first member has a degree of freedom of movement in a yawing direction that changes positions of the first and second contact points.
A key support structure for a key of a keyboard device, the key support structure comprising:
- a first member integral with the key and disposed at a rear end side of the key, the rear end side being disposed at a hidden portion of the key that is disposed behind an appearance portion of the key that is touchable by a player to press the key;
- a second member contacting the first member at a first contact point and a second contact point;
- and
- a third member contacting the first member at a third contact point,
- wherein the second member and the third member support the first member at the first contact point, the second contact point, and the third contact point, and
- wherein the first member has a degree of freedom of movement in a yawing direction that changes positions of the first and second contact points.
Dependencies are inferred from the claim text.