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Keyboard device for playing music automatically

一种键盘装置、自动演奏的技术，应用在自动乐器、弦乐器、仪器等方向，能够解决配置出现偏差、不能等间隔地排列锤体等问题，达到抑制运动、正确按键动作、提高耐久性的效果

Inactive Publication Date: 2008-09-17
YAMAHA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this device, when the key frame is made of resin, a plurality of ribs are provided to increase the strength. In order to avoid these ribs when arranging the hammer body, the hammer body cannot be arranged at equal intervals, and the configuration will appear. deviation, resulting in wide and narrow
As a result, the same problem will occur on the drive mechanism corresponding to the hammer body.

Method used

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  • Keyboard device for playing music automatically
  • Keyboard device for playing music automatically
  • Keyboard device for playing music automatically

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0037] Fig. 1 is a cross-sectional view of a keyboard device for automatic performance according to a first embodiment of the present invention.

[0038] This keyboard device is suitable, for example, for an electronic keyboard musical instrument that can be played automatically. This keyboard device is configured by supporting a plurality of keys 10 and hammers HM corresponding to the keys 10 on the bottom plate 14 . When the key 10 is pressed, the key 10 freely rotates in the up and down direction around the key rotation fulcrum PK. As the keys 10, there are a plurality of white keys 10W and black keys 10B, respectively. Hereinafter, the player's side (left side in FIG. 1 ) of the present keyboard device is referred to as "front". A hammer driving unit 11 is provided on the key 10 .

[0039]Below each key 10 , a hammer HM is provided corresponding to each key 10 . Each hammer body HM is free to rotate about each hammer body rotation axis PH as a center. Also, the engagi...

no. 2 approach

[0077] Figure 6A It is a plan view showing one octave part of the part where the actuator is arranged in the keyboard device for automatic performance according to the second embodiment of the present invention, Figure 6B It is a schematic diagram showing the key driving mechanism of this keyboard device.

[0078] In the first embodiment, a keyboard device having hammers HM is shown as an example. In the second embodiment, a structure in which the key 10 is directly driven by the actuator 30 without the hammer HM is shown as an example.

[0079] Such as Figure 6B As shown, the key 10 is centered on the key rotation fulcrum PK2 and freely rotates in the up and down direction. The protrusions 25F, 25R provided on the hammer body HM in the first embodiment are Figure 6B In an example, it is arranged on the lower surface of the rear end portion of the key 10. The actuators 30 are arranged below the protrusions 25, and their structure is the same as that of the first embod...

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Abstract

The invention provides a keyboard assembly for playing music automatically that can increase design freedom degree, namely, configuration space of fixing apparatus or component can be set, or a drive mechanism maximum is maximum. A rotary hammer member linkage with key is set corresponding to each key (10). An actuator that is arrayed alternately showing parallel in two rows of a front row (a second row) and a rear row (a first row) formed along the key arrangement direction corresponding to each hammer member. Position of the actuator along the key arrangement direction is various corresponding to hammer member. In particular, a part actuators (30-1 to 30-5) is set near to undertone side, another actuators (30-6 to 30-12) is set near to overtone side. For example, actuator interval (pchA) between the actuators (30-1, 30-2) in actuator interval (pchA) is less than hammer member interval (pchH) between hammer member HM-1, HM-2 in the hammer member interval.

Description

technical field [0001] The present invention relates to a keyboard device for automatic performance, which uses the driving force of a driving mechanism to drive keys. Background technique [0002] Conventionally, there has been a keyboard device for an automatic performance in which an automatic performance is realized by key-driving the keys using the driving force of the driving mechanism (Patent Document 1 below). [0003] In this device, the keys can freely swing around the key fulcrum, and corresponding to each key, a solenoid coil as a driving mechanism is provided. The solenoid coils are arranged alternately in two rows along the direction in which the keys are arranged. The front end of the plunger arranged inside each solenoid coil pushes the lower surface of the rear end of the key from bottom to top to drive it, thereby driving the corresponding key in the direction of pressing the key. [0004] Specifically, in order to effectively arrange the drive mechanism,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10F1/02G10C3/12
CPCG10F1/02G10H1/346
Inventor 清水元英
Owner YAMAHA CORP
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