Keyboard device for electronic keyboard instrument
First Claim
1. A keyboard device for an electronic keyboard instrument, comprising:
- a plurality of keys each extending in a front-rear direction and each having a pivot shaft extending at a rear end thereof in a left-right direction;
a keyboard chassis that includes a mounting portion, and a plurality of first support portions, each first support portion provided on a key-by-key basis to support a respective pivot shaft and to hold said keys in a state arranged side by side in the left-right direction; and
a pivot shaft bearing member that includes a second support portion, which cooperates with each first support portion to form a bearing for supporting said pivot shaft to support each key in a manner pivotally movable about an axis of said pivot shaft and is removably mounted to said mounting portion,wherein during assembly of the keyboard device, in a state where each key is engaged with an associated one of said first support portions via said pivot shaft and is held on said keyboard chassis, said mounting portion remains exposed to outside before said pivot shaft bearing member is mounted thereto such that said pivot shaft bearing member can be mounted from above or rear.
1 Assignment
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Accused Products
Abstract
A keyboard device for an electronic keyboard instrument, ensuring stable pivotal motion of each key and improved in each of assembly and disassembly. Each key extends in a front-rear direction and has a pivot shaft extending at a rear end in a left-right direction. A keyboard chassis has a mounting portion and key-separating support portions each for supporting the pivot shaft. A pivot shaft bearing member has a pivot shaft support portion cooperating with each key-separating support portion to form a bearing for the pivot shaft, supporting each key pivotally movable, and is removably mounted to the mounting portion. During assembly, with each key engaged with the key-separating support portion via the pivot shaft and held on the keyboard chassis, the mounting portion remains exposed, enabling the bearing member to be mounted from above or rear.
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Citations
6 Claims
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1. A keyboard device for an electronic keyboard instrument, comprising:
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a plurality of keys each extending in a front-rear direction and each having a pivot shaft extending at a rear end thereof in a left-right direction; a keyboard chassis that includes a mounting portion, and a plurality of first support portions, each first support portion provided on a key-by-key basis to support a respective pivot shaft and to hold said keys in a state arranged side by side in the left-right direction; and a pivot shaft bearing member that includes a second support portion, which cooperates with each first support portion to form a bearing for supporting said pivot shaft to support each key in a manner pivotally movable about an axis of said pivot shaft and is removably mounted to said mounting portion, wherein during assembly of the keyboard device, in a state where each key is engaged with an associated one of said first support portions via said pivot shaft and is held on said keyboard chassis, said mounting portion remains exposed to outside before said pivot shaft bearing member is mounted thereto such that said pivot shaft bearing member can be mounted from above or rear. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification