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Reinforcing device of piano key press baffle

A reinforcement device and key-press technology, which is applied to stringed instruments and instruments, can solve the problems of easy deformation, high price, and deformation, and achieve the effects of preventing deformation, saving costs, and cheap prices

Active Publication Date: 2014-02-26
北京珠江钢琴制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the pressing key 1 is long and only two ends are fixed, it is easy to deform and thus does not meet the requirements of use. In order to solve this problem, the pressing key 1 is usually made of wood with better rigidity and not easily deformed in the prior art. , such as spruce, but the price of these woods is relatively high; even so, there will still be some deformation in the process of pressing the key file 1, which will affect the use of the piano

Method used

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  • Reinforcing device of piano key press baffle
  • Reinforcing device of piano key press baffle
  • Reinforcing device of piano key press baffle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] see image 3 and Figure 4 , The reinforcing device of the piano key file of the present embodiment is arranged between the bass group keys 5 and the middle and high pitch group keys 5 on the rear side of the piano key file 1 . In the keyframe of the piano, the top is closely arranged keys 5, and only there is a certain gap 12 between the bass group keys 5 and the middle and high pitch group keys 5, and its purpose is to let the piano action and keyboard Avoid the reinforcing rib on the iron plate of the piano; the bottom of the key frame is connected with a reinforcing beam, which is called the middle wood 4, and the reinforcing device of the present invention is designed based on the above-mentioned structural characteristics of the piano.

[0025] see Figure 1 to Figure 4 , the fixing device includes a corner bracket 6 and a connecting rod 7, wherein the corner bracket 6 is formed by connecting a bottom plate 6-1 and a side plate 6-2, wherein the side plate 6-2 is ...

Embodiment 2

[0031] see Figure 5 ~ Figure 7 The difference between this embodiment and Embodiment 1 is that, in this embodiment, the rear side of the key holder 1 has a vertical plane, and the top has a horizontal plane, and the angle between the two is 90°. Correspondingly, the side plate 6-2 in the corner code 6 extends upward relative to the bottom plate 6-1, and the angle between the side plate 6-2 and the bottom plate 6-1 is 90°, and the side plate 6- 2 is close to the vertical plane of pressing key shelf 1. The advantage of adopting this structure is that it facilitates the tapping of the screw 9 when connecting the side plate 6-2 and the key holder 1, making the installation of the reinforcing device more convenient. And, after all the pianos adopt this key-press gear 1, the corner code 6 only needs to be made into one specification, which makes the production and use of the corner code 6 easier.

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Abstract

The invention discloses a reinforcing device of a piano key press baffle, the reinforcing device is arranged between low-pitch-group keys and high pitch group keys which are at the rear side of the piano key press baffle, the reinforcing device comprises a corner block and a connecting rod, the corner block is composed of a bottom plate and a side plate which are connected, the side plate is fixedly connected with the key press baffle; the upper end of the connecting rod is fixedly connected with the bottom plate, and the lower end of the connecting rod is fixedly connected with a piano key frame middle wood. The reinforcing device can reinforce the piano key press baffle, prevents the piano key press baffle from deformation, can reduce the requirements for the use of materials, and can reduce the manufacturing cost.

Description

technical field [0001] The invention relates to a reinforcing device for piano parts, in particular to a reinforcing device for piano key rails. Background technique [0002] see image 3 and Figure 4 , the piano key file 1 is a straight bar spanning above the piano keyboard, and its two ends are fixedly connected with the side arms of the piano. The key-pressing shelf 1 is located at the junction of the visible part and the hidden part of the keyboard, and its main function is to limit the keys on the keyboard, the distance between its lower surface and the white key 2 and the distance between the front surface and the end of the black key 3 The distance between them must meet the requirements, otherwise it will affect the normal movement of the keys. Since the pressing key 1 is long and only two ends are fixed, it is easy to deform and thus does not meet the requirements of use. In order to solve this problem, the pressing key 1 is usually made of wood with better rigid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10C3/06
Inventor 叶汉强张鸿超黄歌农梁志和
Owner 北京珠江钢琴制造有限公司