Diaphragm of anti-sticking film/anti-flapping film of chromatic harmonica

Abstract

The invention discloses a diaphragm of an anti-sticking film / anti-flapping film of a chromatic harmonica. The diaphragm comprises a diaphragm body, the diaphragm body is composed of a tiled section and an arc-shaped section, the tiled section is parallel to the horizontal plane, the front end of the arc-shaped section is connected with the tail end of the tiled section, and the arc-shaped section is gradually and naturally bent upwards in an arc shape from front to back; and the height of the arc-shaped section is 1.3-1.8 mm, the length of the arc-shaped section is 10-12 mm, the height of the arc-shaped section is equal to the distance between the highest point position of the tail end of the arc-shaped section and the horizontal plane position of the front end of the arc-shaped section, and the length of the arc-shaped section is equal to the distance between the front end and the tail end of the arc-shaped section. According to the invention, the diaphragm can be attached to a spring plate, the air tightness of the spring plate can be ensured, the contact position at the tail end of the spring plate cannot be influenced by condensed water to generate the adhesion problem, on the other hand, the flatness of the tail section of the diaphragm can be more uniform and stable, and the generation of diaphragm beating can be effectively prevented.

Description

technical field [0001] The invention relates to the field of design and production of harmonica and its spare parts, more specifically, a diaphragm of an anti-adhesive film / anti-beat film of a chromatic harmonica. Background technique [0002] The diaphragm structure of the chromatic harmonica determines the characteristics and timbre of the chromatic harmonica. The biggest function of the diaphragm is to provide the airtightness of the harmonica. It is usually attached to the reed plate of the harmonica. When the harmonica is driven by the airflow, the diaphragm will It will leave the reed plate, and due to the strength of the rebound of the diaphragm, it will cause a certain resistance to the airflow, so as to ensure that the reed can vibrate fully and evenly. When the breath changes greatly, the change of tone and pitch can be more uniform and stable. [0003] However, when the diaphragm of the chromatic harmonica is played in the chromatic harmonica, the water vapor atta...

AI Technical Summary

Problems solved by technology

[0003] However, when the diaphragm of the chromatic harmonica is played in the chromatic harmonica, the water vapor attached to the diaphragm will stick the diaphragm to the reed plate, resulting in airflow obstruction and the phenomenon of mucous membranes. These vapors may be produced when the temperature is low Condensed water or condensed water produced when cold and hot air temperatures alternate, that is, the gas exhaled by people contains more water vapor, and condensed water is generated at the junction between the diaphragm and the reed plate, and it may also be operated when the harmonica is oiled Improperly poured piano oil

On the other hand, because the reed is soft and has high air tightness, when the diaphragm has wrinkles, creases or slight air leakage, it is easy to cause the phenomenon of film flapping, or the diaphragm shakes with the airflow, and the corresponding hole Resonance occurs and the corresponding hole leaks, which may drive the diaphragm and make noise, resulting in the problem of filming

[0004] In the process of use, in order to solve the problem of the mucous membrane, it is generally warmed up before playing the violin, in case the temperature of the reed board is too low, warming the violin can maintain the non-adhesive membrane for a period of time; The problem of the mucous membrane is only a temporary prolongation of the non-mucous membrane time. With the use of the harmonica, the mucous membrane will still occur

[0005] In order to solve the problem of filming, the user will tear off the diaphragm and reattach it when the diaphragm is found to be uneven. However, the adjustment cannot completely solve the problem of filming. It can only be improved for a short time, and even the diaphragm is replaced. After less than 10 minutes, the mucous membranes were re-adhesive; some users switched to other materials for membranes, but found in use that the membranes of other materials only improved or reduced the problem of filming, and could not completely solve the problem of mucous membranes and filming. problems arising

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