JPH0715255Y2 - Car speaker waterproof cover - Google Patents

Description

TECHNICAL FIELD The present invention relates to a waterproof cover suitable for use in a door-embedded speaker of an automobile.

2. Description of the Related Art In the door-embedded speaker, the acoustic characteristics are improved particularly in the low sound range by increasing the enclosure capacity by utilizing the interior space of the door. Therefore, the back side of the speaker cannot be sealed. On the other hand, water drops due to car wash, rain, or the like may enter the door, and if the water drops adhere to the cone of the speaker, the output sound pressure level may be reduced and the voice coil may be rusted. Therefore, in the typical prior art, the waterproof cover 1 as shown in FIG. 7 is used.

FIG. 7 is a perspective view of the waterproof cover 1, and FIG. 8 is a sectional view showing a state in which the waterproof cover 1 is attached to the door 3 together with the speaker 2. This waterproof cover 1 is a speaker 2
A semi-cylindrical first covering portion 4 that covers the upper part of the speaker, a second covering portion 5 that covers the speaker 2 from the rear side, and first and second covering portions
And a mounting portion 6 for mounting the doors 4 and 5 on the door 3. The second covering portion 5 is provided with a slit 7 for ventilation.

The waterproof cover 1 and the speaker 2 configured as above are
It is embedded in the mounting hole 9 formed in the inner wall 8 of the door 3 from the vehicle interior 10 side, and the flange 2a of the speaker 2 and the mounting portion 6 of the waterproof cover 1 are screwed and fixed by a tapping screw 11. It A grill 12 is attached to the passenger compartment 10 side of the speaker 2 to prevent dust.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above-described conventional technique, as shown in FIGS. 8 and 9, a water drop that has penetrated into the door 3 through the window glass 13 is indicated by reference numeral 14. Thus, the waterproof cover 1 falls on the first covering portion 4 and propagates along the outer peripheral surface of the first covering portion 4 as indicated by reference numeral 15, or the second covering portion as indicated by reference numeral 16. It is possible to prevent the speaker 2 from falling along the path 5 and being splashed with water droplets on the speaker 2. Therefore, due to the vibration of the speaker 2, the vibration of the vehicle body, the flow of air in the door 3 accompanying the traveling of the vehicle, and the like, the water droplets transmitted through the second covering portion 5 are indicated by the reference numeral 17. Will be adhered to and will cause the above-mentioned inconvenience.

An object of the present invention is to provide a waterproof cover for a vehicle-mounted speaker that can reliably prevent water droplets from adhering to the speaker.

Means for Solving the Problems The present invention provides a speaker, which is embedded in an inner wall forming a door so that a front surface faces the inside of the vehicle and a rear side projects into an inner space of the door. In a waterproof cover that is waterproof with, a speaker includes a covering portion that covers the speaker from above and a mounting portion that attaches the covering portion to a base material, and the covering portion is inclined downward toward the mounting portion. A waterproof cover for an in-vehicle speaker, which has an outer peripheral surface.

According to the present invention, the speaker is attached to the inner wall of the door so that the front surface faces the inside of the vehicle, and the back side of the speaker is embedded so as to project into the inner space of the door. A waterproof cover for waterproofing the rear side of the speaker in the interior space of the door, the waterproof cover including a covering portion covering the speaker from above and a mounting portion for attaching the covering portion to a base material. And a part. The outer peripheral surface of the covering portion is formed so as to be inclined downward toward the mounting portion in order to restrict movement of water to the rear side of the speaker.

Therefore, the water drop that has fallen onto the covering portion is restricted from flowing to the back of the speaker due to the inclination of the outer peripheral surface.
This makes it possible to reliably prevent the water droplets from adhering to the speaker even when the speaker vibrates or the vehicle body vibrates.

Embodiment FIG. 1 is a perspective view of a waterproof cover 21 according to an embodiment of the present invention, FIG. 2 is a sectional view taken along section line II-II of FIG. 1, and FIG. FIG. 4 is an exploded perspective view showing a method of attaching the cover 21, and FIG. 4 is a sectional view showing a state in which the waterproof cover 21 is attached to the door 23 of the vehicle body of the automobile together with the speaker 22. The waterproof cover 21 generally covers the speaker 22 from the upper side behind the speaker 22 and has a semi-cylindrical first covering portion 24. The first covering portion 24 is continuous with the first covering portion 24.
Is covered from the rear side, and includes a semicircular plate-shaped second covering portion 25, and an attaching portion 26 for attaching the first and second covering portions 24, 25 to the door 23.

The outer peripheral surface 27 of the first covering portion 24 is formed so as to be inclined downward toward the mounting portion 26. In addition,
The first covering portion 24 is formed to have a smaller diameter toward the mounting portion 26 side. The second covering portion 25 has a slit 29 for ventilation.
Is formed. The mounting portion 26 is formed with an insertion hole 31 into which a tapping screw 30 for mounting the waterproof cover 21 on the door 23 is inserted.

As shown in FIG. 3 and FIG. 4, the waterproof cover 21 configured as described above is covered from the rear side of the speaker 22 and embedded in the mounting hole 39 formed in the inner wall 38 of the door 23. Be done. On the flange 22a of the speaker 22, the tapping 3
An insertion hole 40 for inserting 0 is formed. The waterproof cover 21 and the speaker 22 are embedded in the mounting hole 39 so that the first covering portion 24 of the waterproof cover 21 is on the upper side, that is, the side of the window glass 43, and tapping screws that connect the insertion holes 40 and 31. The 30 is attached to the inner wall 38 of the door 23 by being screwed into the screw hole 41 formed in the inner wall 38. inner wall
An interior material 46 is attached to the vehicle compartment 42 side of 38, and a grill 44 is attached to the front side of the speaker 22, that is, the vehicle compartment 42 side for dustproofing. In this way, the inner space 45 of the door 23 can be used to increase the enclosure capacity, and particularly the acoustic characteristics in the low frequency range can be improved.

When the waterproof cover 21 is attached as described above, the fourth
As shown in FIG. 5 and FIG. 5, the water droplets 50 that have penetrated into the door 23 through the window glass 43 and the like drop onto the first covering portion 24 of the waterproof cover 21, and along the outer peripheral surface 27, As indicated by reference numeral 52 in FIG. 5, it flows down from the side of the speaker 22. Therefore, the outer peripheral surface 27 prevents the water droplets 50 from flowing toward the second coating portion 25, as indicated by reference numeral 53 in FIG. As a result, the water droplets 50 flow down while avoiding the speaker 22 even when the speaker 22 vibrates, the car body vibrates, or the air flows inside the door 23 as the vehicle travels. In this way, it is possible to prevent the water droplets 50 from adhering to the speaker 22, and to prevent the change in tone color and the occurrence of rust on the voice coil as described above.

FIG. 6 is a cross-sectional view of a waterproof cover 61 according to another embodiment of the present invention. This embodiment is similar to the above-mentioned embodiment, and the corresponding portions bear the same reference numerals. In this waterproof cover 61, the slit 62 is inclined downward from the front side to the rear side in the second covering portion 63, whereby the second covering portion 63 is inclined.
Even when water flows to 63, it is possible to reliably prevent water droplets from adhering to speaker 22.

As described above, according to the present invention, the inner wall of the door is
The front side faces the inside of the vehicle, and the back side is embedded in the interior space of the door. In order to achieve this, since the water droplet is formed so as to be inclined downward toward the mounting portion, the outer peripheral surface restricts the water droplets that have dropped onto the covering portion from flowing to the rear side of the speaker. Therefore, it is possible to reliably prevent the water droplets from adhering to the speaker even when the speaker vibrates or the vehicle body vibrates.

[Brief description of drawings]

1 is a perspective view of a waterproof cover 21 according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the section line II-II of FIG. 1, and FIG. 3 shows a method of attaching the waterproof cover 21. FIG. 4 is an exploded perspective view, FIG. 4 is a sectional view showing a state in which the waterproof cover 21 is attached to the door 23, FIG. 5 is a perspective view showing the flow of water droplets 50 on the waterproof cover 21, and FIG. 6 is another embodiment of the present invention. FIG. 7 is a sectional view of an example waterproof cover 61, FIG. 7 is a perspective view of a conventional waterproof cover 1, and FIG. 8 is a sectional view of a door 3 showing a mounting state of the waterproof cover 1.
The figure is a perspective view showing the flow of water droplets 14 dropped on the waterproof cover 1. 21,61 ... Waterproof cover, 22 ... Speaker, 23 ... Door, 24 ... First covering part, 25,63 ... Second covering part, 26 ... Mounting part, 27 ... Outer peripheral surface, 29,62 ... Slit, 45 ... Internal Space, 50 ... water drop

Claims (1)

[Scope of utility model registration request] 1. A waterproof cover for waterproofing, in the internal space, a rear side of a speaker which is embedded in an inner wall forming a door so that a front surface faces the inside of the vehicle and a rear side projects into an internal space of the door. A rear side of the speaker, including a covering portion that covers the speaker from above, and an attaching portion that attaches the covering portion to the inner wall, and the covering portion has an outer peripheral surface that is inclined downward toward the attaching portion. A characteristic waterproof cover for in-vehicle speakers.