JPH032424Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structure for mounting a speaker in the interior of an automobile.

[Prior Art] As shown in FIG. 6, the speakers of audio devices such as radios installed in automobiles are attached to an instrument panel 10, and in particular, the instruments and their wiring attached to the instrument panel 10 are attached to the instrument panel 10. It is installed at the upper part of the instrument panel 10 for reasons such as this.

Incidentally, in order to improve the acoustic characteristics of the speaker in the bass range, it is preferable to provide a large resonant space on the back side of the speaker. For this reason, conventionally, a box 12 that covers the back side of the speaker is generally attached to the back side of the speaker.

However, as shown in FIG. 6, a reinforcement 16 fixed to the cowl 14 is disposed inside the upper part of the instrument panel 10, so that the box body 12 does not interfere with the instrument panel 10. Therefore, it was necessary to reduce the volume of the box 12, and it was not possible to secure a sufficient resonance space. Furthermore, depending on the vehicle model, the mounting space between the top surface of the instrument panel 10 and the reinforcement 16 is narrow, and the speaker cannot be installed on the top surface of the instrument panel 10, so the placement of the speaker is limited. was.

These problems can be solved by changing the shape, size, or arrangement of the reinforcement 16, but it is difficult to do so from the viewpoint of ensuring the rigidity of the vehicle body.

In addition, as a technique for improving the acoustic effect of speakers, there are
There is a technique shown in No. 39299.

[Problems to be Solved by the Invention] Taking the above facts into consideration, the present invention aims to provide a mounting structure for an automobile speaker that can secure a sufficient resonance space on the rear side of the speaker.

[Means for Solving the Problems] In the automobile speaker mounting structure according to the present invention, the speaker is attached to a reinforcement that is fixed to the cowl and forms a closed cross section with the cowl.

[Function] In the automotive speaker mounting structure configured as described above, the sound emitted from the rear side of the speaker is resonated with the sound emitted from the front side of the speaker in the space between the cowl and the reinforcement. The acoustic characteristics in the bass range are improved.

[Example] FIGS. 1 and 2 show an example of a mounting structure for an automobile speaker according to the present invention.

In this embodiment, the speaker 18 is disposed inside the upper part of the instrument panel 20 between it and the cowl 22, as shown in FIGS. 1 and 2.

The instrument panel 20 is disposed in front of the driver's seat, and instruments (not shown) and audio equipment such as a radio are attached to the front portion on the driver's seat side. Speaker grills 21 are provided on the left and right sides of the upper surface of this instrument panel 20, respectively.
is fitted.

The cowl 22 is disposed below the front windshield glass 24, is formed from a cowl inner panel 26 and a cowl outer panel 28, and is used to introduce outside air into the vehicle interior. A dash panel 30 is fixed to the lower surface of the cowl 22, and a reinforcement 32 is fixed to the surface on the driver's seat side.

The reinforcement 32 has a U-shaped cross section, and both ends are fixed to the driver's seat side surface and the lower surface of the cowl inner panel 26, respectively, to form a closed cross section with the cowl inner panel 26, improving vehicle body rigidity. are doing.

The speaker 18 is attached to the upper surface of the reinforcement 32 via bolts 34.
The speakers 18 are arranged directly below the speaker grille 21, so that sound emitted from the front of the speaker 18 flows into the vehicle interior through the speaker grille 21.

Further, the rear side of the speaker 18 is arranged in the space between the cowl inner panel 26 and the reinforcement 32, so that the sound emitted from the back of the speaker 18 resonates with the sound emitted from the front of the speaker 18. ing.

Note that the speaker 18 is connected to an output section of an audio device (not shown), and generates sound when the audio device is operated.

As described above, in this embodiment, since the rear side of the speaker 18 is arranged in the space between the cowl inner panel 26 and the reinforcement 32, a sufficient resonance space is secured on the rear side of the speaker 18. The acoustic characteristics of the speaker 18 in the bass range are improved. As a result, there is no need to provide a box for securing a resonance space as in the conventional case, so the number of parts is reduced, and cost and weight are reduced. Further, since there is no need to provide a box body and the rear side of the speaker 18 is disposed in the space between the cowl inner panel 26 and the reinforcement 32, the speaker 18
The space required for installation is reduced, and the degree of freedom in the installation position of the speaker 18 is improved, and the degree of freedom in design is improved by changing the placement position of the speaker grill 21 in accordance with the installation position of the speaker 18. .

Further, in this embodiment, since the speaker 18 is attached to the reinforcement 32 fixed to the cowl inner panel 26, the rigidity of the vehicle body does not decrease.

In this embodiment, the speaker 18 is configured so that the sound flowing from the front flows through the speaker grille 21 and into the vehicle interior from the top surface of the instrument panel 10. Other structures may be used, such as changing the position so that the sound flowing from the front of the speaker 18 flows from the front of the instrument panel 20 on the driver's seat side into the vehicle interior.

Further, in this embodiment, the speaker 18 is directly attached to the reinforcement 32 with bolts 34, but as shown in FIG. 3, it can be attached indirectly to the reinforcement 32 via a bracket 36. You can.

Furthermore, as shown in FIG. 4, the end of the cowl inner panel 26 on the driver's seat side may be extended, and the speaker 18 may be attached to this extension 26A.

Alternatively, as shown in FIG. 5, an opening 38 may be provided on the surface of the reinforcement 32 facing the back surface of the speaker 18, and this opening 38 may be covered with a paper cone 40. In this case, the sound coming from the back of the speaker 18 not only resonates with the sound coming from the front of the speaker 18 in the space between the reinforcement 32 and the cowl inner panel 26, but also causes the paper cone 40 to vibrate. Instrument panel 20 and darts panel 30
Since resonance also occurs in the space between the two, the acoustic characteristics of the speaker 18 in the bass range are further improved.

[Effects of the invention] As explained above, in the automotive speaker mounting structure according to the invention, the speaker is attached to the reinforcement that is fixed to the cowl and forms a closed cross section with the cowl. This has the excellent effect of ensuring a sufficient resonance space on the back side.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the speaker area showing an embodiment of the automotive speaker mounting structure according to the present invention;
Fig. 2 is an exploded perspective view of Fig. 1, Figs. 3 to 5 are cross-sectional views showing other embodiments and correspond to Fig. 1, and Fig. 6 shows a conventional speaker mounting structure. FIG. 18...Speaker, 22...Cowl, 32...
…Lean reinforcement.

Claims (1)

[Scope of utility model registration request] A mounting structure for a speaker in a vehicle interior, characterized in that the speaker is mounted on a reinforcement that is fixed to a cowl and forms a closed cross section with the cowl.