JPS59192635A - Diaphragm type horn for automobile - Google Patents

Abstract

PURPOSE:To make a normal honk soundable at all times, by inserting a gasket capable of passing air through along with watertightness inside a cover into space between a flange of the cover and a diaphragm. CONSTITUTION:In case of a diaphragm type horn for an automobile that attaches a diaphragm 8 to a perihperal flange 2 so as to block up a cover 1 and makes the diaphragm 3 free of vibration by means of a built-in vibration generator 4 inside the cover 1, a paper gasket 6 produced by adding a waterproof agent to pulp as a main component through beater treatment is inserted into space between the diaphragm 3 and the flange 2. As for the quality of paper in this gasket 6, it is recommended to use thick filter paper or the like, while as for the waterproof agent, paraffin or the like is used for that. In this case, a rate of 2-5% paraffin is added as beater addition to the pulp for papermaking, through which the said gasket is produced by way of such processes as dewatering, pressure applying, drying, cutting and so on. An automobile horn secured in this way enjoys permeability in addition to watertightness so that a normal honk can be emitted at all time when necessary.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved automobile horn in which a diaphragm is attached to the flange around C1 to close the cover, and this diaphragm can be freely vibrated by a vibration generator C2. . This kind of horn is used when driving under conditions with significantly different altitudes, or due to the influence of heat from an internal combustion engine (2), which causes the pressure inside and around the cover to liquefy; If this is not maintained, the horn may not operate normally.

For this reason, in order to maintain the pressure balance between the inside and outside, an outlet is provided for the air inside the cover, but through this outlet, rainwater, etc. can enter the cover and come into contact with electrical components, causing failures and causing the sound of the horn. Normal operation cannot be expected. Therefore, watertightness within the cover must be maintained.

The present invention was researched in order to improve the above-mentioned conventional drawbacks, and it solves this problem by inserting a gasket between the flange and diaphragm of the gasket tracker cover, which allows air to pass through as well as watertightness within the cover. This is what we are trying to solve.

The present invention will be described in detail with reference to the illustrated embodiment C2.
A diaphragm (3) is attached to the periphery of the flange (2) so as to seal off the diaphragm (3), and the diaphragm (3) is made to vibrate freely by a vibration generator (4) built into the cover (1). Membrane vibrating horn (5) At C2, between the diaphragm (3) and Franz (2), place a paper gasket (6) containing a water repellent (waterproofing agent) and a beater added to the main component, Yaruzo. It is made by inserting it.

The two types of paper for the gasket (6) are 1 paper or thick absorbent paper, and the water repellent is paraffin, metal salt (
Aluminum acetate, etc.), metal 1 soap (aluminum stearate, aluminum ionate, etc.), castor oil, wood wax, beef tallow, zirconium complex salt, chromium complex salt, steramidomethylpyrinonium salt (Peran PF, Zelan AP)
etc.), those that react with cellulose such as octadecyl ethylene urea, and silicone resins.

These are obtained by adding a beater to a general C2/F loop C2 for 2 to 5 steps, papermaking, dehydration, pressure drying (preferably about 100C to 130C), and cutting.

The horn obtained in this way has air permeability and watertightness without the need for a special outlet or other device to be attached to the cover, so it can be attached to the cover even when driving in bad weather. There is no intrusion of rainwater, and the balance between the pressure inside and outside the cover is maintained even when driving a car in areas with large altitude differences, and the horn can always emit a normal horn sound.

Gaskets using C2 of the present invention can be manufactured simply by adding a water repellent agent in a beater in the same way as in the production of ordinary paper, making it possible to produce C2 uniform products at low cost. The amount of addition can be adjusted according to the horn used depending on the intended use of the automobile.

[Brief explanation of the drawing]

The figure is a sectional view of a main part of the horn of the present invention. (1) is a cover, (2) is Franz, (3) is Guyaflam, (5) is a membrane vibrating horn; (6) is a paper gas grip.

Claims (1)

[Claims] A Franz C diaphragm is attached to the periphery so as to seal off the cover, and the diaphragm is installed inside the cover (2). A vibrating membrane-type 9 whistle for automobiles, which is made by inserting a paper gasket in which a beater is added to the main ingredient PalyOC Nimozu.