Keyboard apparatus
AssigneeYamaha Corporation
InventorsShunsuke Ichiki, Hirotsugu Suzuki, Ichiro Osuga
Life of this patent
Estimating the term…
Abstract
A keyboard apparatus includes: a key; a frame; and a connecting portion configured to connect the key and the frame to each other. The connecting portion includes a flexible member having a rod shape and having flexibility that enables the key to pivot with respect to the frame. The flexible member includes a portion that, in entirety of a range of pivotal movement of the key, maintains a state in which a length of a line extending along a neutral axis of the flexible member between two points located on the neutral axis is greater than a length of a straight line connecting the two points to each other.
Claims14
A keyboard apparatus, comprising:
- a key;
- a frame;
- and
- a connecting portion configured to connect the key and the frame to each other, the connecting portion comprising a flexible member having a rod shape and having flexibility that enables the key to pivot with respect to the frame,
- wherein the flexible member comprises a portion that, in entirety of a range of pivotal movement of the key, maintains a state in which a length of a line extending along a neutral axis of the flexible member between two points located on the neutral axis is greater than a length of a straight line connecting the two points to each other.
A keyboard apparatus, comprising:
- a key;
- a frame;
- and
- a connecting portion configured to connect the key and the frame to each other, the connecting portion comprising a flexible member having a rod shape and having flexibility that enables the key to pivot with respect to the frame,
- wherein the flexible member comprises a portion that, in entirety of a range of pivotal movement of the key, maintains a state in which a neutral axis of the flexible member is bent.
A keyboard apparatus, comprising:
- a key;
- a frame;
- and
- a connecting portion configured to connect the key and the frame to each other, the connecting portion comprising a flexible member having a rod shape and having flexibility that enables the key to pivot with respect to the frame,
- wherein at least a portion of the flexible member comprises:
- a first straight rod portion extending in a longitudinal direction of the key;
- a second straight rod portion extending in an up and down direction;
- and
- an intermediate rod portion having a rod shape, connecting the first straight rod portion and the second straight rod portion to each other, and extending in a direction different from each of the longitudinal direction and the up and down direction.
Dependencies are inferred from the claim text.