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Piano adjustment measuring tool and measurement adjusting method thereof

An adjustment method and technology of measuring tools, applied in the direction of stringed instruments, instruments, etc., can solve problems such as differences, precision and accuracy cannot be guaranteed, etc.

Pending Publication Date: 2021-04-30
BEIJING UNION UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are more than 8,000 parts in the piano, most of which are wooden structures. Changes in temperature and humidity will cause wood deformation. To ensure the best pitch and touch of the piano, the piano will be adjusted twice a year f

Method used

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  • Piano adjustment measuring tool and measurement adjusting method thereof
  • Piano adjustment measuring tool and measurement adjusting method thereof
  • Piano adjustment measuring tool and measurement adjusting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] Such as Figure 1-2 As shown, a kind of piano adjustment gauge provided in this embodiment includes: a first gauge 10;

[0132] The first measuring tool 10 is in the shape of a trapezoidal block as a whole;

[0133] The shape of the first measuring tool 10 on the first section parallel to the xy projection plane is a rectangle;

[0134] The shape of the first measuring tool 10 on the second section parallel to the yz projection plane is a right-angled trapezoid; the plane on the first measuring tool 10 that is parallel to the xz projection plane and includes the right-angled waistline of the right-angled trapezoid is a right-angled detection surface 11; The surface facing up and down with the right-angled detection surface 11 and including the oblique waistline of the right-angled trapezoid is the oblique detection surface 12;

[0135] Both ends of the first measuring tool 10 in the z-axis direction respectively include a front-end detection surface 13 and a rear-end ...

Embodiment 2

[0142] Such as image 3 As shown, the piano adjustment gauge provided in this embodiment includes: a second gauge 20; the second gauge 20 is in the shape of a cuboid as a whole, including: an upper measuring surface 21 and a lower measuring surface 22; an upper measuring surface 21 and a lower measuring surface 22; The lower measuring surfaces 22 are parallel to each other, and the distance between the two is 15mm; one end of the upper measuring surface 21 is provided with a sunken platform 23, which includes a sunken platform detection surface 24 parallel to the lower measuring surface 22, and the sunken platform detection surface 24 is connected to the The distance between the lower measuring surfaces 22 is 13 mm. That is, the height of the countertop 23 is 2 mm.

[0143]The sinking platform 23 design with a recess of nearly 2mm can better fit the white keys of a grand piano to measure the keyboard height and key level of a grand piano. Generally, when the lower lock is rem...

Embodiment 3

[0149] Such as Figure 4-6 As shown, the piano adjustment gauge provided in this embodiment includes: a third gauge 30; the third gauge 30 includes a special-shaped part 31 and a cuboid part 32; the cross-section of the special-shaped part 31 is V-shaped, including the first A measuring plate 31a and a second measuring plate 31b, the thickness of the first measuring plate 31a is 1.5mm; the thickness of the second measuring plate 31b is 2mm. The angle between the first measuring board 31a and the second measuring board 31b is 90°. The cross section of the cuboid part 32 is a square of 12mm*12mm.

[0150] In other words, the third measuring tool 30 is in the shape of a cylinder as a whole, and the cross section of the cylinder is square; one end of the cylinder is provided with a groove 33 with a rectangular cross section; the corresponding part of the groove 33 on the cylinder is the The special-shaped part 31 (the two plate-shaped bodies surrounding the groove 33 are respect...

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Abstract

The invention provides a piano adjustment measuring tool and a measurement adjustment method thereof. The piano adjustment measuring tool comprises a first measuring tool, wherein the first measuring tool is integrally in a trapezoidal block shape; and the detection surface at the front end is a rectangle with the width of 18mm-22mm and the height of 9.5 mm-11.5 mm. The piano adjustment measuring tool provided by the invention is specially designed for piano tuning, is used for adjustment and comparison, and provides a basis for tuning and adjustment of all parameters in a piano mechanical tuning process. The set of measuring tool covers all parameters of all keyboard mechanical adjustment, such as the piano striking distance, the keyboard height, the sinking depth, the disconnection distance, the hammer return stroke, the hammer fall-back, and the starting time of a sound arrester, so that piano tuning speed and efficiency are greatly improved. In the aspect of accuracy, through the combined use of several measuring tools, the accuracy of each adjustment parameter is higher, and the error is smaller. Due to the design of the measuring tool, a piano tuner can finish piano tuning and adjusting work more scientifically, more accurately, more efficiently and more comprehensively, and the measuring tool is the first in domestic piano tuning tools.

Description

technical field [0001] The invention relates to the technical field of piano adjustment, in particular to a piano adjustment measuring tool and a measuring and adjusting method thereof; in particular, to a piano adjusting measuring tool and a measuring and adjusting method applicable to blind tuners. Background technique [0002] At present, there are more than 8,000 parts in the piano, most of which are wooden structures. Changes in temperature and humidity will cause wood deformation. To ensure the best pitch and touch of the piano, the piano will be adjusted twice a year for tuning and mechanical touch. The current piano adjustment mainly depends on the experience of the piano tuner. The adjustment results are often different due to the level and subjectivity of the tuner, and the precision and accuracy cannot be guaranteed. Contents of the invention [0003] The object of the present invention is to provide a piano adjustment gauge and its measurement and adjustment me...

Claims

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Application Information

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IPC IPC(8): G10C9/00
CPCG10C9/00
Inventor 张爱民王颖科
Owner BEIJING UNION UNIVERSITY
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