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Scroll wheel type piano toning apparatus

A tuner and worm technology, applied in the piano field, can solve problems such as laborious operation and difficulty in ensuring adjustment accuracy, and achieve the effects of less investment, high accuracy, and low cost

Inactive Publication Date: 2009-02-18
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional piano tuner uses a tuning wrench. The principle is to increase the force of a lever. Although the structure is simple, the operation is laborious and the adjustment accuracy is difficult to guarantee.

Method used

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  • Scroll wheel type piano toning apparatus
  • Scroll wheel type piano toning apparatus
  • Scroll wheel type piano toning apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Example 1 During the operation, the tuner connects the tuner joint and the opening of the lever arm B on the tuner housing to the two string fixing shafts at the same time, and the tuner joint is connected to the piano to be tuned. The peg, and the peg connected to the lever arm B is the leverage fulcrum, the tuning handwheel is rotated, and the rotational torque is transmitted to the string fixing shaft and the tuner housing through two pairs of gears. Since the lever arm B is fixed, Therefore, the rotation of the tuner casing is prevented, thereby achieving the purpose of tuning and increasing force.

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PUM

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Abstract

The invention is piano tuning apparatus. There is a trough on the case. The tuning hand wheel is connected to spindle of drive bevel gear. The tuner joint is inside case. The worm wheel is fixed on stepped shaft fixed by nut. The worm engage to the worm wheel is fixed inside case. The upper end of worm is connected to the driven bevel gear. The spindle of drive bevel gear across the hole on the upper cover is connected to the hand wheel. Comparing with prior art, the invention provides features of easy of operation, saving effort, high precision, suitable for professional soundman or as a tool for individual to use.

Description

[technical field] [0001] The invention relates to the technical field of pianos, in particular to a worm gear piano tuner. [Background technique] [0002] The traditional piano tuner uses a tuning wrench, and the principle is to increase the force of a lever. Although the structure is simple, the operation is laborious and the adjustment accuracy is difficult to guarantee. [Content of the invention] [0003] The object of the present invention is to provide a piano tuner, which adopts a worm gear booster mechanism to reduce the strength of the piano during tuning operation and increase the tuning accuracy. [0004] In order to achieve the above object, a piano tuner is designed, including driving bevel gears, driven bevel gears, hollow bolts, fixing bolts, gaskets, nut parts, and is characterized in that there is a groove on the tuner housing. The tone handwheel is connected with the shaft of the driving bevel gear, the tuner joint is installed in the corresponding tuning...

Claims

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Application Information

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IPC IPC(8): G10C9/00
Inventor 龚勉
Owner SHANGHAI UNIV OF ENG SCI
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