JPH0872623A - Fitting structure of speaker for vehicle - Google Patents

Abstract

PURPOSE: To prevent the other parts from being caused to resonate by the vibration of a speaker mounted on a door or a quater panel of a vehicle such as an automobile or the like. CONSTITUTION: The back of a speaker 4 fitted to an inner panel 1 of a door is covered with a waterproof member 3, and a vibration isolating material 9 is interposed between the waterproof member 3 and the speaker 4. The waterproof member 3 protects the speaker 4 from water which enters the interior of the door, and the vibration isolating material restrains resonance of the waterproof member 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle speaker mounting structure applied to an audio device such as an automobile.

[0002]

2. Description of the Related Art In vehicles such as automobiles, it has become common to mount a CD (compact disc) deck or a CD autochanger, as well as a radio or tape deck. In this way, as so-called car audio evolves, the number of speakers that reproduce it also increases,
Four speakers will be standard, and six, eight and even more speakers will be used. The speaker is arranged at a flat place between the rear portion of the rear seat and the rear window, which is the most common position, inside the door, and inside the quarter panel.

Since the speaker vibrates the cone paper with a voice signal to generate a sound, when it is mounted inside a door or the like, parts inside the door near the speaker resonate with this vibration. So-called chattering sound (hereinafter,
Unnecessary vibration noise) may occur. Therefore, various measures have been taken to remove this unwanted vibration sound.

As a prior art, Jitsuko Sho 62-18517
And Japanese Patent Publication No. 57-9274. The former provides a structure in which a hole is formed in a panel forming a door and a waterproof sheet, a sponge member larger than this hole is used for closing, and the back surface of the speaker is pressed against the sponge member to be fixed. In contrast, the latter one is
(EN) A structure in which a speaker located inside a door is covered with a porous main body having a predetermined breathability and a thin film having a predetermined thickness. Both of these can be expected to have a great effect in suppressing the unnecessary vibration sound described above.

[0005]

However, these techniques still have problems to be solved. That is, in the former case, water that has entered the interior of the door along the ascending / descending door glass may hit the sponge member and wet it. If the sponge member gets wet, there is a risk that the adhesive portion that fixes the sponge member and the waterproof sheet will peel off, and if the waterproof sheet gets wet, the speaker that is in contact with the waterproof sheet will get wet and the performance will deteriorate.
In the latter case, there is a problem in the bonding between the porous body and the thin film. Positioning and fixing of both will be complicated if they are simply overlapped. If they are pasted together, the weight of the main body will be applied to the fixed part of the thin film, it is necessary to match the shapes of both, and if both are integrally molded, the cost is high. And so on.

Therefore, when the speaker is thus installed inside the door or inside the quarter panel, particularly when installed inside the door, the speaker is protected from water that has entered through the gap between the window glass that moves up and down and the outer panel of the door. Therefore, it is possible to cover the back of the speaker with a waterproof member (generally a vinyl sheet) called a water proof.

By covering the back of the speaker with the water proof in this way, the speaker can be protected from water that has entered through the gap between the windshield and the outer panel of the door, but the water proof is liable to cause slack. This time, this water proof will vibrate and generate unnecessary vibration noise. Therefore, in order to prevent this, the water proof may be cut off at the back surface of the speaker, but if this is done, the waterproofness will be reduced.

The present invention has been made in view of this point, and it is an object of the present invention to provide a mounting structure for a vehicle speaker in which an unnecessary vibration sound is not generated by the sound pressure of the speaker while maintaining a sufficient waterproof effect. To do.

[0009]

SUMMARY OF THE INVENTION The present invention covers the back of a speaker mounted in a door or a quarter panel with a water proof and between the water proof and the speaker or between the water proof and the speaker mounting bracket. A structure for mounting a speaker for a vehicle, characterized in that a vibration isolator is interposed in the structure.

[0010]

With the above construction, water that has entered through the gap between the ascending / descending window glass and the outer panel of the door is blocked by the water proof, and there is no risk of wetting the vibration isolator and speaker. Since the sound pressure of the speaker is absorbed by the vibration isolator, it is possible to prevent the water proof from generating unnecessary vibration sound.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. Reference numeral 1 denotes an inner panel of a vehicle door, and the left side in the drawing is a vehicle interior. The outer panel (not shown) is located on the right side at a predetermined interval, and is welded at the upper and lower and front and rear peripheral portions to form a bag. As is well known, the inside is a storage room for the lowered door glass. Inner panel 1
A hole 2 is formed in the hole 2, and a water proof 3 having a funnel shape and a flange protruding from the outer periphery is fitted into the hole 2. As the material of this water proof 3,
A vinyl sheet or the like can be considered, but other materials may be used as long as they have the same hardness and workability.

Reference numeral 4 denotes a speaker, which is a general type and is generally composed of a flange 5, a cone 6 and an electro-acoustic transducer 7. The flange 5 is water-proof by rivets (or bolts) 8 at a plurality of locations. It is attached to the inner panel 1 together with 3. The parts other than the flange 5 of the speaker 4 are covered with the water proof 3. A grill (not shown) is attached to the front surface of the speaker 4, and the inner surface of the inner panel 1 is covered with an inner lining (not shown), similar to a conventional automobile.

There is a predetermined space between the back of the electro-acoustic transducer 7 of the speaker 4 and the water proof 3, and a vibration isolator 9 is interposed in this space in a slightly compressed state. . By interposing the vibration-proof material 9 in this way, pressure is applied from the inside to the water proof 3 and tension is applied to prevent the slack from occurring as in the conventional case.

As the material of the vibration isolator 9, it is necessary to select a material having good air permeability. This is because if the vibration of the air generated when the speaker 4 produces a sound is completely blocked, the sound quality will be adversely affected. For this reason,
Felts or sponges can be considered, but it is also possible to use layers of coarsely woven fabrics and the like.

Assembling order of the speaker 4, the vibration isolator 9 and the water proof 3 is as follows: the speaker 4 and the vibration isolator 9 are adhered to each other, and the water proof 3 is brought into contact with the speaker 4. Adhere the material 9 and the water proof 3,
There are two ways to bring this into contact with the speaker 4,
It may be assembled by any method.

By configuring as described above,
Since the water proof 3 comes into contact with the back of the electro-acoustic transducer 7 of the speaker 4 via the vibration isolator 9, the water proof 3 does not have the slack that has been conventionally caused, so that the air vibration of the speaker 4 is eliminated. It is possible to suppress unnecessary vibration noise generated by receiving the noise. Since it is not necessary to cut off the water proof 3, the waterproofness does not deteriorate.

FIG. 2 shows another embodiment of the present invention. This will be described focusing on the different parts by giving the same reference numerals to the same members as in FIG. In this embodiment, the speaker 4
A bracket 10 for mounting the speaker is provided, and the speaker 4 is supported by the inner panel 1 via the bracket 10. Reference numeral 8 is a rivet for attaching the speaker 4 to the bracket 10, and 11 is the water proof 3 for the bracket 10.
Together with this, it is a rivet attached to the inner panel 1. It goes without saying that these rivets may also be bolts.

As for the shape of the bracket 10, in the embodiment, a shape having a hole 12 for pressing the flange 8 of the speaker 4 from the rear surface and a portion 10a extending only to the upper portion to the back of the electro-acoustic transducer 7 of the speaker 4 are formed in the embodiment. However,
This shape is an example, and may have another shape. In any case, a portion 10a reaching the back of the electro-acoustic transducer 7 of the speaker 4 is necessary, and a vibration isolator 9 is interposed between this portion and the water proof 3.
In this embodiment, since the speaker 4 and the bracket 10 are integrated, even if the vibration isolator 9 is provided in this portion, the same action and effect as those of the previous embodiment can be obtained.

Although the embodiment described above mounts the speaker inside the door, the present invention is not limited to this. The same structure can be used when mounting the speaker in the quarter panel.

[0020]

Since the present invention has the above-described mounting structure for the vehicle speaker, the back portion of the speaker is covered with the water proof, so that the influence of water that has entered the inside of the door can be blocked. it can. Since this water proof does not resonate with the air vibration of the speaker, unnecessary vibration noise is not generated, and therefore noise is not mixed with the sound generated by the speaker 4 and sound quality is not deteriorated.
No change is made to each component such as the inner panel of the vehicle body, and the number of manufacturing steps is not increased.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a sectional view of another embodiment of the present invention.

[Explanation of symbols]

 1 Inner Panel 2 Hole 3 Water Proof 4 Speaker 7 Electric / Acoustic Transducer 9 Vibration Isolator 10 Bracket

Claims (1)

[Claims] 1. A back portion of a speaker mounted in a door or a quarter panel is covered with a water proof, and a vibration proof material is interposed between the water proof and the speaker or between the water proof and the speaker mounting bracket. A mounting structure for a vehicle speaker, which is characterized in that