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Piano keyboard cover plate descender

A technology of keyboard cover and descending device, which is applied in the field of piano, can solve the problems of easy oil leakage, large volume, and affecting the overall appearance, and achieve the effect of improving aesthetics and practicability, and reducing volume

Pending Publication Date: 2019-02-19
吴怡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the large size and heavy weight of the piano cover, when the piano cover is lowered and closed, it is easy to pinch the user's fingers or damage the keys, which is especially prominent for beginners.
At present, most of the keyboard cover slow-down devices on the market use hydraulic slow-down devices. Hydraulic slow-down devices are generally large in size and prone to oil leakage during use. Exposure to the outside will affect the overall appearance. The oil that comes out is likely to pollute other parts on the piano

Method used

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  • Piano keyboard cover plate descender
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Embodiment Construction

[0021] The present invention will be further described in detail below with reference to the accompanying drawings, and the foregoing and other objectives, features, aspects and advantages of the present invention will become more apparent, so that those skilled in the art can implement them with reference to the text of the description. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used in all the drawings to indicate the same or similar parts. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, and lower parts are based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the size from top to bottom, "width" corresponds to the size from left to right, and "depth" corresponds to the size from front to back. These relative terms are for convenience of explanation and are generally not ...

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Abstract

The invention discloses a piano keyboard cover plate descender. The descender comprises an inner hollow descending air cylinder, a sealing cover and a descending rod, and the upper portion of the descending air cylinder is opened and forms an opening; the sealing cover is connected to the upper portion of the descending air cylinder For sealing the opening; the bottom end of the descending rod passes through the sealing cover and penetrates into the interior of the descending air cylinder, the side of the descending air cylinder is provided with a descending air valve, and the descending gas valve is in communication with the bottom of the descending air cylinder. According to the descender, the volume of the descender is greatly reduced by the cooperation of a pneumatic valve and a spring, there is no oil contamination, the descender is hidden below the hinge position of a piano keyboard cover plate and a piano, and the aesthetics and practicality are greatly improved.

Description

Technical field [0001] The invention relates to the field of pianos, in particular to a slow-down device for a piano keyboard cover. Background technique [0002] Because the piano cover is large and generally heavier, when the piano cover is lowered and folded, it is very easy to cause the user's fingers to be caught or the keys to be damaged due to the rapid lowering. This problem is particularly prominent for beginners. At present, most of the keyboard cover slow-down devices on the market use hydraulic slow-down devices. Hydraulic slow-down devices are generally large in size and prone to oil leakage during use. Exposure to the outside affects the overall appearance and second The oil will easily pollute other parts on the piano. In view of this, it is really necessary to develop a piano keyboard cover slow down device to solve the above problems. Summary of the invention [0003] In view of the shortcomings in the prior art, the purpose of the present invention is to provid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10C3/16G10C3/20
CPCG10C3/16G10C3/20
Inventor 吴怡
Owner 吴怡
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