JP3830086B2 - In-vehicle speaker device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle-mounted speaker device including a speaker such as a woofer installed and installed in a vehicle.
[0002]
[Prior art]
When an in-vehicle speaker device such as a woofer is installed in a vehicle such as an automobile, it is often attached to an invisible position such as under a trunk room or a seat. FIG. 3 shows an example of a conventional vehicle-mounted speaker device in which a vehicle acoustic speaker 33 is installed in the automobile 30, and FIG. 3A is in the trunk room 31 behind the rear seat 32 of the automobile 30. FIG. 3B is an example in which the speaker 33 is attached at a position below the front seat 34 or the rear seat 32.
[0003]
[Problems to be solved by the invention]
However, the conventional in-vehicle speaker device has the following problems.
-If a large in-vehicle speaker such as a subwoofer for bass reproduction is installed in the trunk room of an automobile, a considerably large space is occupied, so that a space for loading luggage or the like is reduced.
・ Installing on-board speakers in the trunk room makes it easier for sound to leak out of the vehicle, which may cause noise in the surrounding environment.
-Automobiles such as sedans and coupes have a structure that can be divided into a trunk room (cargo compartment) and a passenger compartment, and when a speaker is incorporated in the trunk room, the seats and cushions act as sound shields and absorb sound Has been acoustically not good. The same applies to the underside of the seat. Sound is absorbed by the seat and the like, so that it is not acoustically sound and the structure of the seat and the like is complicated.
[0004]
The present invention has been made in view of the above points, and can be appropriately installed with a speaker such as a woofer in a vehicle, is acoustically excellent, has good space efficiency, and does not occupy other spaces. An object is to provide a speaker device.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems and achieve a desired object, the vehicle-mounted speaker device of the present invention is configured as follows.
(1) A vehicle-mounted speaker device comprising: a speaker installed and output in a vehicle; and a tubular acoustic duct that transmits sound output from the speaker in cooperation with the speaker, wherein the tubular acoustic duct includes: comprises at least one opening for opening output sound to the outside, is disposed at a position in the vehicle, the tubular acoustic duct, utilizing the mounting hole portion after the assist grip provided in a vehicle is removed Thus , the vehicle-mounted speaker device is configured.
( 2 ) In the vehicle-mounted speaker device according to ( 1 ), the tubular acoustic duct includes a linear shape portion and / or a curved shape portion.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Next, with reference to FIGS. 1-2, embodiment of the vehicle-mounted speaker apparatus by this invention is described in detail.
FIG. 1 is an explanatory diagram of the general condition inside a vehicle showing an embodiment of a vehicle-mounted speaker device according to the present invention. FIG. 2 is an external perspective view showing an example of a tubular acoustic duct according to the vehicle-mounted speaker device of the present invention. FIG. 2 (a) shows a U-shape and FIG. 2 (b) shows a long-type. .
[0007]
As shown in FIG. 1, a speaker 10 that outputs sound is disposed in the vehicle, and a tubular acoustic duct 20 that transmits sound output from the speaker 10 is disposed in the vehicle in cooperation with the speaker 10. ing. The tubular acoustic duct 20 has a long insertion pipe-like structure suitable for transmitting sound waves emitted from the speaker 10 with the inside as a cavity.
This tubular acoustic duct 20 has a speaker cooperation portion 22 having an enlarged diameter cross section on the side of the speaker 10 located at the base end portion, and receives the speaker 10 here, toward the opening portion 21 on the distal end side. It can be arranged and set to increase the effect. And it has the structure which is extended from the speaker cooperation part 22 to the linear shape part 20b through the curved shape part 20a, has the opening part 21 in the front end side, and outputs sound to the exterior from here. .
[0008]
In order to link the tubular acoustic duct 20 and the speaker 10, the entire speaker 10 is received in the tubular acoustic duct 20 as shown in FIG. 1, but the present invention is not limited to this. As the structure here, it is preferable that the circular end portion of the speaker 10 and the end portion of the speaker cooperation portion 22 are adapted to form a structure that can be firmly and closely coupled without leaking sound. For such a structure, a conventionally known technique is appropriately adopted, and various connection joining structures may be designed and applied.
[0009]
The structure of the tubular acoustic duct 20 may have various shapes such as a circle, a square, and a triangle, and any shape may be adopted as long as it is acoustically soundable. You may combine the thing of a shape. In addition, the length, combination of linear and curved shapes, and the structure of branching (branching) can be set freely, such as the setting position of the speaker in the vehicle, the position of the occupant, the open position of the sound, etc. In view of this, the tubular acoustic duct 20 may be appropriately designed and set in the vehicle. Furthermore, the number of openings 21 is not limited to one, and a plurality of openings 21 may be provided. The openings 21 may be provided in the middle of the duct as well as at the front end side. .
[0010]
In this way, the tubular acoustic duct 20 is arranged so as to extend from the position of the speaker 10 in cooperation with the speaker 10, so that it may be directly attached to the side wall surface or the ceiling surface of the vehicle, It can also pass through the vehicle floor. At that time, the arrangement of the opening 21 should be considered so that it can be heard acoustically well by the occupant. In some cases, the tubular acoustic duct 20 is embedded in a vehicle wall surface, a seat seat or the like. Only the opening may be arranged so as to come to a position on the outer surface side where the acoustic effect is high.
Further, the tubular acoustic duct 20 can be arranged in the vehicle seat (front seat 12, rear seat 14) or in the trunk room where the speaker 10 is arranged, and the sound propagates through the inserted duct. Therefore, no problem occurs acoustically wherever the speaker 10 is arranged.
[0011]
When the tubular acoustic duct 20 is mounted in the vehicle, it can be mounted at an arbitrary position in the vehicle by using the duct mounting portions (23a, 23b). The duct mounting portions (23a, 23b) are members that are fixed to a wall surface or the like while holding the tubular acoustic duct 20, and mounting bolts (24a, 24b) that penetrate the duct mounting portion are attached to the vehicle inner wall surface or the like. The mounting arrangement of the tubular acoustic duct 20 can be completed by fastening and fixing to the provided mounting holes (25a, 25b) with screws or the like. The arrow x here indicates the direction of attachment.
[0012]
Now, the mounting holes (25a, 25b) provided in the inner wall surface or the like may be newly set, but existing equipment in the vehicle can also be used. FIG. 1 shows an existing assist grip 13, and it is convenient to utilize this mounting structure. The assist grip 13 is a safety member for a vehicle occupant to hold and support the body, and is often installed near the roof near the position of the occupant head, but the dashboard in front of the door or passenger seat Or attached to the back of the seat. The grip part includes a straight bar type and a ring type.
[0013]
The assist grip 13 has mounting projections (13a, 13b) that engage with the mounting holes (25a, 25b), and is mounted in the vehicle. The assist grip 13 seen in FIG. 1 shows the one that has already been removed, and the arrow y here is the direction in which it is removed. Since the mounting holes (25a, 25b) are left on the inner wall surface of the vehicle after being removed, this mounting hole (25a, 25b) is used to newly install the tubular acoustic duct 20. Can do. The tubular acoustic duct 20 can also have a structure that also serves as the assist grip 13. At this time, the tubular acoustic duct 20 has a material and a fixing structure that can sufficiently satisfy standards such as strength as a grip safety member. The design must be made to be
[0014]
In arranging the tubular acoustic duct, it is possible to leave the assist grip 13 without removing it and provide a new tubular acoustic duct 20 as well. In that case, mounting holes (25a, 25b) may be formed in the vicinity of the assist grip 13 and disposed here, or the existing assist grip 13 may be connected to the tubular acoustic via a connector / fastener. The duct 20 may be fixed directly.
[0015]
FIG. 2 is an external perspective view showing an example of a tubular acoustic duct according to the present invention, where (a) shows a U-shape and (b) shows a long shape.
The tubular acoustic duct shown in FIG. 2 (a) includes an opening 21a on one side, a linear shape portion 20b1, a curved shape portion 20a1, a linear shape portion 20b2, a curved shape portion 20a2, and a curved shape portion 20a2 on the other side. It has a structure in which the linear shape portion 20b3 on the side and the opening portion 21b on the other side are connected, and is configured as an integral tubular acoustic duct having an outer U-shape as a whole. The linear shape portion 20b1 on one side has a duct attachment portion (23e, 23f), and the linear shape portion 20b3 on the other side has a duct attachment portion (23g, 23h). Can be attached and fixed to the inner wall of the vehicle. Here, the duct mounting portions (23e, 23f) and the duct mounting portions (23g, 23h) can be designed to match existing assist grips installed in the vehicle, and both the left and right sides of the vehicle can be designed. The assist grip on the wall surface can be removed, and these duct mounting portions can be arranged and set at the same position.
[0016]
The tubular acoustic duct shown in FIG. 2 (b) is a long type, and the end portion side opening 21c, linear shape portion 23b4, curved shape portion 20a3, and speaker cooperation portion 22a continuously form a series of duct shapes. is doing. Here, duct mounting portions (23i, 23j, 23k, 23m) are arranged in the linear shape portion 23b4. These duct attachment parts are divided into two sets, such as attachment parts (23i, 23j) and attachment parts (23k, 23m), and are matched to the existing assist grips installed in the vehicle. If the mounting part (23i, 23j) and the mounting part (23k, 23m) are arranged together on the rear seat side, after removing the assist grip, place these duct mounting parts in the same position. The tubular acoustic duct can be set and configured.
[0017]
The point of the in-vehicle speaker device of the present invention is in the following configuration.
-The vehicle-mounted speaker apparatus of this invention contains a speaker and a tubular acoustic duct, and these are arrange | positioned and comprised in the vehicle.
The vehicle has an existing assist grip, but the in-vehicle speaker device according to the present invention can be attached at the same position or in the vicinity thereof.
-An extendable tubular acoustic duct is configured to propagate the sound of the speaker. Therefore, the speaker itself can be installed at a position that is not visible to the human eye, such as under the seat or in the trunk, and the performance of the speaker is not impaired by dust or vibration.
[0018]
As described above, according to the in-vehicle speaker device of the present invention, the following excellent features can be obtained.
-A speaker such as a woofer can be installed at an appropriate location in the vehicle interior of the vehicle, and the sound can be heard directly by the occupant, thereby providing an acoustically superior device.
-Space efficiency in installing the device is good, and it does not occupy other spaces such as cargo spaces and narrow.
・ Since there is no need to install the speaker directly on the floor that is in the way of space, there is no worry of being covered with dust or dirt, and the performance of the speaker is not deteriorated.
-Even if a small speaker is adopted, low-frequency sound can be reproduced by the duct structure, and an in-vehicle speaker device that is acoustically excellent can be provided.
[0019]
【The invention's effect】
According to the in-vehicle speaker device of the present invention, the speaker can be installed at an appropriate place in the vehicle, and an excellent in-vehicle speaker device that is acoustically excellent and space efficient can be provided.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an explanatory diagram of a general situation in a vehicle showing an embodiment of a vehicle-mounted speaker device according to the present invention.
FIG. 2 is an external perspective view showing an example of a tubular acoustic duct according to the vehicle-mounted speaker device of the present invention, in which FIG. 2 (a) shows a U-shape and FIG. 2 (b) shows a long-type.
FIGS. 3A and 3B show a conventional example in which a vehicle acoustic speaker 33 is installed in an automobile 30. FIG. 3A shows a state in which the speaker 33 is attached to a trunk room 31, and FIG. 3B shows a seat seat 32 (34). The manner in which the speaker 33 is attached under the) is shown.
[Explanation of symbols]
10 Speaker 10
11 Front seat 12 Rear seat 13 Assist grip 13
13a, 13b Mounting convex portion 14 Trunk room 20 Tubular acoustic duct 20a Curved shape portion 20b Linear shape portion 21 Opening portion 22 Speaker linkage portion 23 Duct mounting portion 24 Mounting bolt 25 Mounting hole

Claims (2)

A speaker installed in the vehicle for output;
In-vehicle speaker device comprising a tubular acoustic duct that transmits sound output from the speaker in cooperation with the speaker,
It said tubular acoustic duct, comprises at least one opening for opening output sound to the outside, is disposed at a position in the vehicle,
The tubular acoustic duct is configured to be attached and configured using an attachment hole after an assist grip provided in a vehicle is removed . The in-vehicle speaker device according to claim 1 ,
The in-vehicle speaker device characterized in that the tubular acoustic duct includes a linear shape portion and / or a curved shape portion.

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