Keyboard apparatus
AssigneeYamaha Corporation
InventorKento Ogawa
Life of this patent
Estimating the term…
Abstract
A keyboard apparatus includes: a key; a hammer assembly; a first member having a step; a second member slidable relative to the first member and configured to be moved in a direction in which the second member moves over the step, when the key is pressed; and a third member configured to guide the second member such that the second member is not located at a distance greater than or equal to a predetermined distance from the first member. The third member has a shape at a region of the third member such that the third member does not contact the second member in a state in which the second member is in contact with the first member. When the second member moves over the step, the region is opposed to the second member in the direction in which the second member moves over the step.
Claims16
A keyboard apparatus, comprising:
- a key disposed so as to be pivotable with respect to a frame;
- a hammer assembly disposed so as to be pivotable in response to a pivotal movement of the key;
- a first member including a step on a surface of the first member;
- a second member disposed so as to be slid relative to the first member when the hammer assembly pivots in response to the pivotal movement of the key, the second member being configured to be moved in a direction in which the second member moves over the step, when the key is pressed;
- and
- a third member connected to the first member, the third member having a shape at a region of the third member such that the region of the third member does not contact the second member in a state in which the second member is in contact with the first member, the region of the third member being, when the second member moves over the step, opposed to the second member in the direction in which the second member moves over the step.
A keyboard apparatus, comprising:
- a key disposed so as to be pivotable with respect to a frame;
- a hammer assembly disposed so as to be pivotable in response to a pivotal movement of the key;
- a first member including a step on a surface of the first member;
- a second member disposed so as to be slid relative to the first member when the hammer assembly pivots in response to the pivotal movement of the key, the second member being configured to be moved in a direction in which the second member moves over the step, when the key is pressed;
- and
- a third member connected to the first member,
- wherein a surface of the third member includes a recess at a position opposed to the step.
A keyboard apparatus, comprising:
- a key disposed so as to be pivotable with respect to a frame;
- a hammer assembly disposed so as to be pivotable in response to a pivotal movement of the key;
- a first member including a step on a surface of the first member;
- a second member disposed so as to be slid relative to the first member when the hammer assembly pivots in response to the pivotal movement of the key, the second member being configured to be moved in a direction in which the second member moves over the step, when the key is pressed;
- and
- a third member connected to the first member, the third member including a weak-restitution region configured to apply a force pressing the second member back that is weaker than a force pressing the second member back applied by other regions of the third member outside the weak-restitution region of the third member in response to the same force applied by the second member.
A keyboard apparatus, comprising:
- a key disposed so as to be pivotable with respect to a frame;
- a hammer assembly disposed so as to be pivotable in response to a pivotal movement of the key;
- a first member including a step on a surface of the first member;
- a second member disposed so as to be slid relative to the first member when the hammer assembly pivots in response to the pivotal movement of the key, the second member being configured to be moved in a direction in which the second member moves over the step, when the key is pressed;
- and
- a third member connected to the first member, the third member having a shape at a region of the third member such that the region of the third member does not contact the second member in a state in which the second member is in contact with the first member, the region of the third member being located downstream of the step in the direction in which the second member moves over the step when the key is pressed.
Dependencies are inferred from the claim text.