JPS61132443A - Loudspeaker mounting structure for vehicle - Google Patents

Abstract

PURPOSE:To prevent a sound from working inside and improve easiness to hear by providing the sound discharge sport of a loudspeaker in parallel to an inner panel and in close vicinity to a sound discharge section and partitioning the front space of the sound discharge port in a cavity section as the cavity space. CONSTITUTION:A part of an interior material 3 that covers the car room side of the inner panel 2 of a door 1 is protruded to the car room side and a box type cavity section 10 is formed. In addition, a sound discharge section 7 made of a number of permeation holes 6 is formed on the side wall of this protrusion section, that is a loudspeaker trim section 4. Besides, a partition body 16 is arranged in the cavity section 10 and consists of a cylindrical main body 16a a leg body 16b formed on the base end of the main body 16a secured with a screw 15 around the insertion hole 8 of the inner panel 2, a flange 16c to which a spacer 12 for preventing an annular sound leak formed on the tip of the main body 16a and adhering to the inner surface around the sound discharge section 7, and a number of loudspeakers mounting section 16d that is protruded nearer the tip of the internally circumferential surface of the main body 16a and on which a mounting hole 17 is formed.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a vehicle speaker mounting structure.

2. Description of the Related Art Conventionally, as shown in FIG. 3, a speaker trim part 4 is formed to protrude toward the passenger compartment at the lower part of the front side of an interior material 3 that is loosely attached to the passenger compartment side of the inner panel 2 of an automobile door 1. A device in which a speaker 5 is built into the trim portion 4 is known. This is shown, for example, in "Nirasan Service Broadcast, No. 385" (June 1978), page 122.

By the way, as the mounting structure of the speaker 5, 84~
Various structures are possible as shown in Figure 7.

That is, in the case shown in FIG. 4, a sound emitting section 7 consisting of a large number of through holes 6 is formed on the side wall of the speaker trim section 4, while
An insertion hole 8 is made in the inner panel 2 corresponding to the sound emitting part 7, and the main body of the speaker 5 is inserted into the insertion hole 8.
A flange 5a formed around the sound emitting port of the speaker 5 is fixed to the inner panel 2 with screws 9, and the sound of the speaker 5 is transmitted between the box-shaped cavity 10 formed inside the speaker trim part 4 and the sound emitting part. 7 and radiates into the vehicle interior. The one shown in FIG. 5 has a leg body 11 at the base end.
A cylindrical partition body 11 having a diameter is formed, and this partition body 11
The leg body 11a of the door 1 is tightened around the insertion hole 8 of the inner panel 2 of the door 1 with the flange 5a of the subveaker 5 by means of screws 9, while the flange ll formed at the tip of the partition body 11 is
A sound emitting space 13 is partitioned in the cavity 10 by interposing annular sound leakage prevention spacers 12 in close contact with each other between the sound emitting portion 7 and the inner surface of the speaker trim portion 4 around the sound emitting portion 7. What is shown in Figure 6 is the inner panel 2 of door 1.
The support body 14 is fixed with screws 15, and the 7 flange 5a of the speaker 5 is fixed with the screws 9 to the tip of this support body 14, so that the sound emitting port of the speaker 5 is approximately parallel to the inner panel 2 and the sound emitting part 7 is fixed.
It is placed close to. The one shown in Figure 7 is door 1.
The tip of the support 14A fixed to the inner panel 2 with screws 15 is extended to the sound emitting part 7 side, and the 7 langes 5a of the speaker 5 are fixed with the screws 9 to the tip of the support 14A, and the sound emitting port of the speaker 5 is connected to the speaker trim. It is arranged substantially parallel to the inner surface of the section 4 and closer to the sound emitting section 7.

Problems to be Solved by the Invention However, in the one shown in FIG. 4, the sound emitting port of the speaker 5 is placed on the inner panel 2 side and is far away from the sound emitting part 7, so that the sound from the speaker 5 is It is easy to get trapped inside the cavity 10. Similarly, in the case of the one shown in FIG. 5, the distance from the sound emitting port of the speaker 5 to the sound emitting part 7 in the sound emitting space 13 is long, and there is a possibility that the sound emitting part 7 will be attenuated in the sound emitting space 13. In the case of the one shown in FIG. 6, part of the sound enters the space around the support 14 from the space in front of the speaker 5 in the cavity 10 as shown by the arrow, and it is not possible to prevent the sound from being muffled. Furthermore, in the case of the one shown in Fig. 7, there are design considerations such as reducing the protruding window when the door 1 is opened and the balance with other trim parts of the door 1, and improving comfort by securing leg space when getting on the vehicle. Generally, the side wall of the speaker trim part 4 having the sound emitting part 7 is formed diagonally downward, and the sound emitting port of the speaker 5 is arranged substantially parallel to the side wall. Because of this, the direction of sound emission is directed toward the occupant's feet, making it difficult to hear.

Therefore, the present invention can prevent sound from being muffled,
An object of the present invention is to provide a vehicle speaker mounting structure that can also improve ease of listening.

Means for Solving the Problems In the present invention, a partition wall body that partitions a sound emitting space is placed inside a cavity formed by projecting a part of the interior material covering the passenger compartment side of the vehicle body inner panel toward the passenger compartment side. It is fixedly supported on the inner panel and its tip is disposed closely around the sound emitting part formed on the side wall of the protruding molded part, and a speaker mounting part is formed on the inner peripheral surface of this partition body to emit the speaker. A sound port is arranged close to the sound emitting section.

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, with the same reference numerals given to the same parts as the conventional structure.

That is, as shown in FIGS. 1 and 2, a box-shaped cavity 10 is formed by molding a part of the interior material 3 that covers the passenger compartment side of the inner panel 2 of the door 1 serving as the vehicle body inner panel to protrude toward the passenger compartment side. and its protruding molded part, specifically the speaker) IJ
A sound emitting part 7 consisting of a large number of through holes 6 is formed on the side wall of the sound emitting part 4. Reference numeral 16 indicates a partition body disposed in the cavity 10, which includes a cylindrical main body 16a, a leg body 16b formed at the base end of this main body 16a and fixed with screws 15 around the insertion hole 8 of the inner panel 2, and a main body. A flange 16c formed at the tip of the speaker trim portion 4 and having an annular sound leakage prevention spacer 12 bonded thereto made of ureon foam that is in close contact with the inner surface around the sound emitting portion 7 of the speaker trim portion 4, and a flange 16c close to the tip of the inner circumferential surface of the main body 16H. A plurality of speaker mounting portions 16d having mounting holes 17 projecting from the speaker mounting portions 16d are provided. By fixing the flange 5a of the speaker 5 to the speaker mounting portions 16d with screws 9, the sound emitting port of the speaker 5 is arranged approximately parallel to the inner panel 2 and close to the sound emitting portion 7, and the speaker 5 The space in front of the sound emitting port is hollow part 1.
0, a sound emitting space 13A communicating with the sound emitting port and the sound emitting part 7.
It is a partition.

The plurality of speaker mounting portions 16d are attached to the legs 1 of the partition body 16.
It is designed so that it does not overlap with the screw insertion hole 18 opened in 6b when viewed from the side.

According to the structure of the above embodiment, the legs 16b of the partition wall 16 are fixed to the interior panel 20 by the screws 15, and the speaker 5
After inserting the main body part of the speaker 5 between the speaker mounting parts 16d and fixing the flange 5a of the speaker 5 to the speaker mounting part 16d with screws 9, the interior material 3 is installed so that the partition wall 16 is covered with the speaker trim part 4. By attaching the speaker 5 to the passenger compartment side of the inner panel 2 of the door 1, the sound emitting port of the speaker 5 is arranged approximately parallel to the inner panel 2 and close to the sound emitting part 7, and the sound emitting port of the speaker 5 is placed close to the sound emitting part 7, and The space is sound emitting space 13A
Since the sound from the speaker 5 does not go around to the part of the cavity 1o located outside the bulkhead body 16 or is directed toward the feet of the passenger, the sound from the speaker 5 can be partitioned into the small space. The sound is quickly radiated from the sound space 13A through the sound emitting section 7 into the vehicle interior. Further, since the positions of the speaker mounting portion 16d and the screw insertion holes 18 are shifted in the circumferential direction so that they do not overlap, when the partition wall body 16 is fixed to the inner panel 2 with the screws 15, the speaker mounting portion 16d is The partition body 16 can be easily and reliably installed without interfering with the installation work of the partition wall 15.

Note that the present invention can also be applied to the case where the speaker 5 is arranged in a part other than the door 1 of the vehicle body.

Effects of the Invention As described above, according to the present invention, the speaker sound is transmitted from the sound emitting port of the speaker disposed close to the sound emitting part without being influenced by the inclination of the side wall of the protruding molded part to the outside of the partition body in the cavity. The sound can be quickly radiated into the vehicle interior through the sound emitting space and the sound emitting part in front of the sound emitting part without going around the area or directing it to the feet of the passengers, thereby preventing the feeling of sound being muffled. This has the practical effect of improving listenability.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention, Fig. 2 is a side view of the partition wall body in the same embodiment as seen from the inside of the vehicle, and Fig. 3 is a perspective view of the area around the door in which a conventional speaker is incorporated. Figures 4 to 7 show six different examples of conventional speaker mounting structures.
FIG. 3 is a cross-sectional view taken along line A-A in the figure. DESCRIPTION OF SYMBOLS 1... Door, 2... Inner panel, 3... Interior material, 4... Speaker trim part, 5... Speaker, 7...
...Sound emitting part, 10...Cavity part, 13A...Sound emitting space, 16...Partition body, 16d...Speaker mounting part.

Claims (1)

[Claims] A part of the interior material that covers the passenger compartment side of the vehicle body inner panel is molded to protrude toward the passenger compartment side to form a box-shaped cavity, and a sound emitting part consisting of a large number of through holes is formed on the side wall of the protruding molded part. On the other hand, a partition wall that partitions a sound emitting space within the cavity is fixedly supported on the inner panel of the vehicle body, and its tip is disposed closely around the sound emitting section, and a speaker is installed on the inner peripheral surface of the partition wall. 1. A vehicle speaker mounting structure, characterized in that a mounting portion is formed and a sound emitting port of the speaker is disposed close to the sound emitting portion.