Keyboard musical instrument

Abstract

The present invention provides a keyboard musical instrument, a keyboard musical instrument such as an electronic piano which does not obstruct a player's field of vision even when the keyboard is operated, and which can transmit tones emitted from a speaker to the player with good sound quality. In this keyboard instrument, the keyboard cover (20) rotates about 180° from the closed cover position shown by the solid line with the point (P) on the extension line of the flat keyboard cover plane part (20-1) as the center of rotation. Reach the opening position (A). In the state of opening the cover, the height of the keyboard cover front end (20-10) is the same as the height of the top plate not shown in the figure. Therefore, the sound emitted from the speaker provided in the top plate portion can reach the player without being blocked by the keyboard cover (20).

Description

technical field [0001] The present invention relates to a keyboard musical instrument such as an electronic piano, and particularly relates to the structure of the keyboard cover of these keyboard musical instruments. Background technique [0002] A keyboard musical instrument such as an electronic piano is provided with a keyboard cover for protecting the keyboard. The keyboard cover is generally a simple open-close type cover, and the keyboard can be exposed by rotating the keyboard cover from the closed cover state by about 100° to 120°. This keyboard cover plays the effect of protecting the keyboard when the keyboard instrument is not used, but it has no special effect when playing the keyboard instrument. Therefore, in Patent Document 1, a technique of sliding the keyboard cover to accommodate it inside the casing of the keyboard instrument is proposed. [0003] Patent Document 1: JP Registration Utility Model No. 2571343. [0004] However, when the keyboard cover ha...

AI Technical Summary

Problems solved by technology

First of all, because the keyboard cover blocks the player's front view during performance, it is difficult for the player of the keyboard instrument to exchange information with the players of other musical instruments when performing chorus performances, etc.

Also, for most electronic pianos, etc., since the keyboard instrument is equipped with a loudspeaker on the upper surface rear part, when the keyboard cover is in an open state relative to the keyboard instrument, it will block the sound transmitted from the loudspeaker to the player Problems that degrade sound quality occur

In addition, if the keyboard cover is accommodated inside the keyboard instrument as described in Patent Document 1, the overall structure of the keyboard instrument will become complicated, and at the same time, the problem of increasing the size of the keyboard instrument will occur.

[0005] Also, in any of the above cases, the keyboard cover basically does not play a practical role in the performance of the keyboard instrument.

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