JPH059969Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a front bumper of an automobile, and more particularly to one in which a sound guiding path is provided to guide the sound of a horn.

(Prior Art) Examples of conventional front bumpers for automobiles include those shown in FIGS. 3 and 4, for example. That is, 100 is a front bumper, and a bumper armature 101 is fixed to the front part of the vehicle body.
A bumper facia 102 is supported at a predetermined interval. On the other hand, reference numeral 103 denotes a horn that is attached to a radiator core support or the like, and this horn 103 is placed facing the bumper armature 101. However, in such a front bumper 100, since the horn 103 faces the bumper armature 101, the sound of the horn 103 is blocked by the bumper armature 101, resulting in a decrease in sound pressure. It was hot. Therefore, as shown in FIG. 5, the horn 103 is moved below the bumper armature 101 so that the sound is emitted from the slit 104 provided below the bumper 100, thereby preventing the sound pressure of the horn 103 from decreasing. Was.

On the other hand, some types of alarm horn 103 are equipped with a rattling-shaped or spiral-shaped resonator cylinder in order to soften the sound quality and give a sense of luxury, but they have the disadvantage of being large. Therefore, an alarm device that is small in size and has a soft sound quality has been proposed (see Japanese Patent Publication No. 1638-1986).

(Problem to be Solved by the Invention) However, in the case of such a conventional example, if the horn 103 is shifted below the bumper armature 101 in order to prevent a drop in sound pressure, the horn 103
Since the horn faces the slit 104, when driving on a snowy road, snow that has entered the interior through the slit 104 may adhere to the horn 103, causing the horn 103 to be covered with snow and reducing the sound pressure. It was hot.
In addition, conventional alarm horns that are small and have soft sound quality can be made smaller, but they have a problem in that they have a complicated structure, increase the number of parts, and increase cost.

The present invention was developed in order to solve the problems of the prior art described above, and its purpose is to offset the sound emission port from the sound emitting port so that the sound does not fall off due to snow when driving on snowy roads. An object of the present invention is to provide a front bumper for an automobile that can prevent the adhesion of noise and improve sound quality by providing a sound guide path inside.

(Means for solving the problem) In order to achieve the above purpose, in the present invention,
A bumper armature is fixed to the front of the vehicle body with its rear face facing the horn, and an intake port for introducing sound is provided in the portion of the bumper armature that faces the horn. A discharge port for emitting sound is provided in the front side wall of the bumper armature, and a sound guide path is formed in the bumper armature to communicate the intake port and the discharge port.

(Function) In the present invention, the sound of the horn is guided from the intake port provided in the bumper armature of the front bumper to the sound guide path, and the sound is emitted from the discharge port after passing through the sound guide path. When driving on a snowy road, the intake and outlet are covered by the bumper facia, so snow does not directly adhere to the horn. Additionally, the sound guide path formed in the front bumper functions as a resonant cylinder, improving sound quality.

(Example) The present invention will be explained below based on the illustrated example. In FIG. 1 showing a front bumper according to an embodiment of the present invention, 1 is a front bumper attached to the front part of a vehicle (not shown), and this front bumper 1 is roughly connected to a bumper armature 2 and a bumper armature 2. The bumper fascia 3 is supported at a predetermined interval. A horn 4 is disposed behind the front bumper 1 so as to face the rear surface of the bumper armature 2. The bumper armature 2 is formed into a closed box cross-sectional shape by joining an armature inner 21 and an armature outer 22 as a front side wall. The armature inner 21 has a substantially U-shaped cross section that opens rearward, and has a front part 21a, an upper edge extending rearward from the upper and lower edges of the front part 21a, and lower edge flanges 21b, 2.
1c. This armature inner 2
The lower edge flange 21c of 1 is shorter than the upper edge flange 21b, and the lower edge of the front portion 21a is an inclined surface portion 21e that slopes rearward. The tips of the upper and lower flanges 21b and 21c are folded back, and the tips of the upper and lower flanges 31 and 32 of the bumper facia 3, which will be described later, are fixed by the folded portions 21d and 21d. On the other hand, the armature outer 22 is a substantially flat member, and furthermore,
The lower edge is above the armature inner 21, the folded part 21d at the tip of the lower edge flange 21b, 21c,
21d to form a closed box cross section. The above-mentioned alarm 4 of this armature outer 22
An intake port 5 for taking in the sound from the alarm horn 4 is bored in the facing portion. An annular rib 51 is provided on the periphery of the intake port 5 to protrude toward the horn 4 side. On the other hand, the armature inner 21 is provided with a discharge port 7 at a portion facing the intake port 5 provided in the armature outer 22.

Further, the bumper faceia 3 has a substantially U-shaped cross section that opens toward the rear similarly to the armature inner 21, and the front part 21 of the armature inner 21 has a substantially U-shaped cross section.
a front part 3 extending substantially perpendicularly to a with a predetermined distance therebetween;
0 and upper and lower edge flanges 31 and 32 extending from the upper and lower edges of this front part 30 toward the rear of the vehicle.
The tips of the lower edge flanges 31 and 32 are locked by the folded parts 21d and 21d provided on the armature inner 21 and the lower edge flanges 21b and 21c, so that the bumper fascia 3 is supported on the bumper armature 2. has been done. Front part 3 of bumper facia 3
The lower end of the armature inner 21 has an inclined surface portion 3 that slopes toward the rear of the vehicle.
It is set to 0a. A slit portion 6 is provided in this inclined surface portion 30a. Each slit 6a of the slit portion 6 is bored in the longitudinal direction of the vehicle. The position of the slit portion 6 is vertically offset from the position of the intake port 5 provided in the armature outer 22. That is, the intake port 5 faces the upper vertical surface portion 30b of the front surface portion 30 of the bumper facia 3. On the other hand, the slit portion 6 provided on the sloped surface portion 30b of the bumper faceia 3 faces the sloped surface portion 21e of the armature inner 21.

Thus, a sound guiding path 8 is formed in the bumper armature 2. The sound guide path 8 connects the armature inner 21 and armature outer 2 of the bumper armature 2.
2 and the internal empty space 23 and armature outer 22
Inlet 5 and armature inner 21 provided in
and a discharge port 7 formed in the.

In the case of the front bumper of a car having the above configuration, when the horn 4 is sounded, the sound is transmitted from the intake port 5 of the armature outer 22 of the bumper armature 2 to the hollow space 23 in the hollow interior of the bumper armature 2. The sound is emitted toward the front of the vehicle from the slit portion 6 of the bumper faceia 3 through the sound guide path 8 constituted by the ejection port 7, thereby preventing a drop in sound pressure. In addition, a rib 51 is provided on the periphery of the intake port 5 provided in the armature outer 22.
, the sound from the horn 4 is guided by the rib 51 and is efficiently guided to the intake port 5, thereby making it possible to reduce the drop in sound pressure as much as possible. Furthermore, since each slit 6a of the slit portion 6 provided in the bumper faceia 3 is bored in the longitudinal direction of the vehicle, the sound is emitted forward and can be transmitted to a long distance. Furthermore, by passing the sound taken in from the intake port 5 of the armature outer 22 through the sound guide path 8, the sound guide path 8 can be used as a resonator cylinder, making the sound quality softer and giving a sense of luxury. .

In addition, even if snow enters the interior through the slit portion 6 of the bumper fascia 3 when driving on a snowy road, the intake port 5 provided in the armature outer 22 of the bumper armature 2 can be replaced by a hole formed in the armature inner 21. Since it is covered by the exit 7 and the bumper facia 3, snow does not directly adhere to the horn 4.

Next, FIG. 2 shows another embodiment of the present invention, in which the same components as in the above embodiment are designated by the same reference numerals.In this embodiment, the bumper armature 2 armature your outer 2
The intake port 5 provided in the armature inner 21 and the discharge port 7 provided in the armature inner 21 are offset in the width direction of the vehicle. In this way, the length of the sound guide path 8 can be increased, so that the sound quality of the sound emitted from the alarm can be made softer.

(Effects of the invention) The present invention has the above-mentioned structure and function, and the sound of the alarm goes from the intake of the bumper armature, through the sound guide path, and the outlet, and is emitted from the slit part of the bumper facia. Therefore, a decrease in sound pressure is prevented without sound insulation by the front bumper. In addition, the outlet and intake ports of the bumper armature will be covered by the bumper armature, so
When driving on a snowy road, snow does not enter through the outlet and adhere directly to the horn, and sufficient sound pressure can be ensured even when driving on a snowy road. Furthermore, since the bumper armature can function as a resonant cylinder, various effects can be obtained, such as a luxurious and soft sound quality even with a normal horn.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a main part of a front bumper for an automobile according to an embodiment of the present invention, FIG. 2 is a schematic perspective view of a front bumper for an automobile according to another embodiment of the present invention, and FIG. 3 is a conventional one. FIGS. 4 and 5 are longitudinal cross-sectional views of main parts of the conventional front bumper of an automobile. Explanation of symbols, 1...Front bumper, 2...Bumper armature, 3...Bumper facia, 4
...Alarm horn, 5...Intake port, 6...Slit part,
7...Emission port, 8...Sound guiding path.

Claims (1)

[Scope of claim for utility model registration] A bumper armature is provided at the front of the vehicle body with the rear facing the horn, and the sound is introduced into the part of the bumper armature that faces the horn. The bumper armature is characterized in that an intake port is provided, and a discharge port for emitting sound is provided in the front side wall of the bumper armature, and a sound guide path is formed in the bumper armature to communicate the intake port and the discharge port. front bumper of a car.