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Keyboard apparatus

一种键盘装置、黑键的技术，应用在风乐器、弦乐器、仪器等方向，能够解决可加工性差等问题，达到减小深度尺寸、简单操作的效果

Inactive Publication Date: 2007-12-12
YAMAHA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the keyboard device disclosed in Japanese Laid-Open Patent Publication No. 2001-215968 is configured to screw the screws from the rear side of the keyboard device, which requires additional steps such as turning the keyboard device back and forth, thereby causing a problem of poor workability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0034] FIG. 1 is a right side view showing main parts of a keyboard device according to a first embodiment of the present invention. This keyboard device is constituted as an electronic keyboard instrument and includes a key frame 10 on which key units UNT are mounted. Hereinafter, the side of the keyboard device facing the player (the left side in FIG. 1 ) is referred to as the front side, and the left and right directions are determined with reference to the player.

[0035] FIG. 2A is a perspective view of the key unit UNT, and FIG. 2B is a perspective view of the key frame 10 . As shown in FIG. 2A, the key unit UNT is constituted to cover one octave, and includes, for example, a first white key unit WU1 and a second white key unit WU2 each having a plurality of white key bodies 27 and a plurality of white key bodies. The black key unit BU of the black key body 28, these three units are assembled in a stacked relationship. The key frame 10 is made of resin or metal and is...

no. 2 example

[0068] 7 is a perspective view showing one octave portion of a keyboard device according to a second embodiment of the present invention. The keyboard device of this embodiment includes a key frame 110 corresponding to the key frame 10 described above, and a key unit UNT2 corresponding to the key unit LNT is installed on the key frame 110 . The key unit UNT2 is formed of a first white key unit WU11 , a second white key unit WU12 , and a black key unit BU10 assembled in a stacked relationship.

[0069] FIG. 8 is a perspective view of the white key unit WU11. FIG. 9A is a side view showing the rear half of the white key units WU11, WU12, the black key unit BU10, and the key unit UNT2. Fig. 9B is a right side view showing the rear end of the keyboard device. FIG. 10 is a plan view separately showing the key frame 110 and the key unit UNT2 in a state before they are assembled together. In FIG. 10 , the rear ends of the key units WU11 , WU12 , and BU10 are shown sequentially fro...

no. 3 example

[0082] In the first and second embodiments described above, the protrusions and the fitting holes are provided between the white key common base ends, the black key common base ends, and adjacent components in the key frame. However, one protrusion can be fitted to two or more fitting holes.

[0083] 11A is a right side view showing the rear end of a keyboard device according to a third embodiment of the present invention. The keyboard device of this embodiment includes a key frame 210 corresponding to the key frame 10 , and a key unit UNT3 corresponding to the key unit UNT is mounted on the key frame 210 . FIG. 11B is a schematic diagram showing a configuration in which all keys common base end 220 is assembled to key frame 210 .

[0084] As shown in Fig. 11A and Fig. 11B, in the key unit UNT3, the first white key common base end 221 corresponding to the above-mentioned first white key common base end 21, second white key common base end 22 and black key common base end 23 ...

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Abstract

A keyboard apparatus constructed to be capable of reducing the depth size thereof and permitting a key unit to be mounted to a key frame with a simple operation. Hinges are extended downward from rear ends of black key main bodies of a black key unit in the vertical direction, and are connected at their lower ends to a common-to-black-keys base end. The black key main bodies are pivotable via the hinges relative to the common-to-black-keys base end in the key depression / release direction. Similarly, white key main bodies of first and second white key units are pivotable via hinges relative to a common base end in the vertical direction. The key frame is formed at its rear portion with a recessed groove over the entire width of all keys and formed with elastic members extending in the front-to-rear direction on the front and rear sides of the recessed groove. Using elastic deformations of the elastic members, a common-to-all-keys base end of the key unit is fitted and fixed to the recessed groove.

Description

technical field [0001] The present invention relates to a keyboard device having a key frame on which a key unit including a plurality of key bodies supported by a common base end via a hinge for pivotal movement is mounted. Background technique [0002] Generally, there is known a keyboard device in which a key unit having a plurality of key bodies supported by a common base end via a thin plate-like hinge for pivotal movement is mounted on a key frame. For example, Japanese Patent No. 2628656 discloses a key unit composed of two white key units and one black key unit arranged in a stacked relationship. Both the white key unit and the black key unit have hinges extending horizontally rearward substantially parallel to the key pressing surfaces of the keys, and thus these key units are long in dimension in the key length direction. Therefore, the depth dimension of the keyboard device is large. [0003] On the other hand, Japanese Laid-Open Patent Publication No. 2001-2159...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10B3/12G10C3/12G10H1/34
CPCG10H2220/275G10H1/344
Inventor 渡边惠介
Owner YAMAHA CORP
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