Key structure and keyboard apparatus

Abstract

The utility model relates to a key structure body which can provide a key with woody appearance, the freedom of at least one functional part which is separated from the key structure body is additionally arranged, and simultaneously, the favorable processability can be maintained. One upper plate piece has a broadening part of a white key, which corresponds to the end which faces a player; in the key structure body, a xylem is at least fixed on the lower surface of the broadening part of the upper plate piece and the utility model also has the broadening part of which the width is the same as that of the broadening part of the upper plate piece. The utility model can be arranged in a keyboard device to be used as the white key which does pivoted movement under the operation of a pressing key. The xylem comprises a groove which is formed in the position of the broadening part, and an opening of the groove faces downwards and has the width (WO) which is not less than that of 50 percent of the broadening part of the xylem and is not more than that of 80 percent.

Description

[0001] This application is a divisional application of an application whose applicant is "Yamaha Corporation", the filing date is September 10, 2004, the application number is 200410077101.5, and the invention title is "key structure and keyboard device". technical field [0002] The present invention relates to a key structure applied to a key having a wood part; and a keyboard device including the key structure. Background technique [0003] Conventionally, as disclosed in Japanese Utility Model Registration Publication No. 2514485 and Japanese Patent Application Publication No. 2903959, the key structure is installed on the keyboard device and acts as a key, which is The bottom can pivot and is generally made of wood or similar material. In such a wooden key structure, at least a so-called "visible part" that is visible from the outside both when played and when not played is made of wood. In this way, the key structure has a wooden appearance and thus a high-quality app...

AI Technical Summary

Problems solved by technology

However, if these joining parts are made of wood, due to the limited precision of wood processing, high machining tolerances cannot be required in their drive parts

On the other hand, if the key structure is made of resin or the like as an integral piece including the pivot and joint, the appearance of wood cannot be obtained at all, and in addition, since compared with wooden keys, Resin bonds have low rigidity, so feel is adversely affected

[0017] (6) In addition, in this type of key structure, the "related joint parts" and "key function parts" are also often formed on the xylem by processing the xylem, and therefore, the freedom of design related to its function and appearance The precision is very low, the processing accuracy is also very low, and there are many processing restrictions

This makes it difficult to implement the functions of the keys with high precision

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