Patent ID: 11862134
Assignee: YAMAHA CORPORATION
Field: Other consumer goods (Other fields)
Classification: CPC G | IPC G

Claim 3:
4. 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.