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Keyboard apparatus

A kind of equipment and keyboard technology, applied in the direction of stringed instruments, wind instruments, instruments, etc., can solve the problem of reducing the strength of the mold, and achieve the effect of compact size

Active Publication Date: 2007-01-24
YAMAHA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This brings about a problem that it is unavoidably necessary to reduce the thickness of the protrusions etc. of the mold for forming the corresponding ribs, and this lowers the strength of the mold.

Method used

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Examples

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Embodiment Construction

[0039] Now, the present invention will be described in detail with reference to the accompanying drawings showing preferred embodiments of the invention.

[0040] figure 1 is a longitudinal sectional view of the keyboard device according to the first embodiment of the present invention. Such a keyboard device 1 is designed as an electronic keyboard instrument. Hereinafter, the player side of the keyboard device 1 ( figure 1 The left side shown in ) is called the "front" side.

[0041] Such as figure 1 As shown, the keyboard device 1 has a key frame 10 disposed in a casing formed by an upper casing 60 and a lower casing 70 . The key frame 10 is provided with a plurality of key units KU, and each key unit KU is composed of a plurality of white keys 20 and a plurality of black keys 40 . Each key unit KU has a common base end portion 30 rigidly fixed to the key frame 10, and the white keys 20 and the black keys 40 are provided such that their free ends can pivot (or swing) ve...

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PUM

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Abstract

A keyboard apparatus having a construction which can maintain an excellent balance in touch feeling between white keys and black keys and can be made compact in size in the longitudinal direction. The driven part of each of mass bodies associated with respective white keys and the driven part of each of mass bodies associated with respective black keys are at the same longitudinal location, and at the same time the distance between the driven part of each black key-associated mass body and a pivotal motion support associated therewith is longer than the distance between the driven part of each white key-associated mass body and a pivotal motion support associated therewith.

Description

technical field [0001] The present invention relates to a keyboard device provided with pivoting members, each of which performs a pivotal movement according to a key operation. Background technique [0002] In a keyboard device provided with a translation type keyboard in which each key is vertically translated, it is easy to make the key stroke and touch pressure of each white key and each black key coincide. However, in a keyboard device configured such that each key pivots vertically around its key pivot, the distance between the portion of the key used for key operation in the black keys and the key pivot is smaller than in the white keys. The distance between the part of the key used for key operation and the key pivot, so for each black key, it is difficult to ensure sufficient key travel without special design, and the touch pressure of each black key tend to increase. [0003] To overcome this problem, a keyboard device has been proposed in which the key pivots of...

Claims

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Application Information

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IPC IPC(8): G10C3/12G10B3/12G10H1/34
CPCG10H1/346
Inventor 西田贤一
Owner YAMAHA CORP
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