JPH0617432Y2 - Speaker device for passenger compartment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a speaker device for a passenger compartment which is attached to a vehicle such as an automobile.

It is necessary for the speaker device for a vehicle compartment to be compactly mounted in the vehicle compartment with as few protrusions as possible into the vehicle compartment so as not to block the driver's view. Further, it is desired that the speaker device be constructed so that a low tone from the woofer and a high tone from the tweeter are appropriately adjusted to create a sound field suited to the listener.

[Conventional technology]

As a method of appropriately adjusting the low tone from the woofer and the high tone from the tweeter with the in-vehicle speaker device to create a sound field that suits the listener's taste, currently, the frequency characteristic of the speaker output sound is electrically changed by using a tone or an equalizer. The mainstream method is to adjust the high range and low range by changing the level. As another method, as shown in FIG. 3, there is known a so-called pop-up method in which the tweeter grill 40 is usually used by covering it on the woofer 2.

In addition, a woofer 20 and tweeter 41, as shown in Fig. 4, are often used for mounted speakers for vehicles.
There is a double cone type or a 2-way type that integrates the two.

[Problems to be solved by the invention]

The method of electrically adjusting the frequency characteristic makes the device expensive. Further, the pop-up type has a problem that the bass range is cut off because the tweeter grill 40 covers the woofer 2. Further, the mount type two-way speaker has a problem that the tweeter having a strong directivity is not directed toward the listener 5 due to the restriction of the mounting position in the vehicle interior.

[Means for solving problems]

In order to solve the above-mentioned problems, in the present invention, a board that defines a compartment of a vehicle is formed with an opening, and a low range speaker is attached so that the opening can be opened and closed. There is provided a speaker device for a vehicle compartment in which a high-frequency range speaker is mounted so as to face the direction of an occupant in the vehicle compartment through the opening.

[Action]

By changing the degree of opening and closing the opening with the low range speaker, the volume of the high range sound from the high range speaker is adjusted to create a sound field that suits the listener. In this case, since the low-range speaker has little directivity, and the high-range speaker is oriented toward the listener even if it has directivity, it is possible to create a good sound field from the viewpoint of directivity. it can.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side sectional view of a vehicle interior speaker device according to an embodiment of the present invention. This speaker device is incorporated in the sun deck on the rear seat side of the automobile.

In FIG. 1, reference numeral 1 denotes a sun deck, which has an opening 1a formed therein. At the edge 1b of the opening 1a, attach the woofer 2 to the shaft 1
It is attached in a hinge shape so as to be rotatable with the edge portion 1b as a fulcrum by c. The woofer 2 is configured to be rotated by a motor 3, and the opening 1a can be opened or closed by tilting the woofer 2.

The woofer 2 is arranged so that its front plane is substantially parallel to the surface of the sundeck 1 when the opening 1a is closed. At the rear position of the sun deck 1, a tweeter 4 is fixed by a supporting portion 1d so as to face the listener in the passenger compartment through the opening 1a. As shown in FIG. 2, the woofer 2 is tilted over to open the opening 1a. When opened, the output sound from the tweeter 4 is directly transmitted to the listener 5.

When the device is configured as described above, the volume of the high-pitched sound output from the tweeter 4 can be adjusted at the position of the listener 5 by adjusting the opening / closing degree of the opening 1a by the woofer 2, and according to the preference of the listener 5. It is possible to adjust the high frequency range. In this case, the woofer 2 is not facing the listener, but there is no problem because the directional characteristics of the woofer 2 are weak.

Various modifications can be made in implementing the present invention. For example, in the above-described embodiment, the opening and closing of the opening is performed by rotating the woofer in a hinge shape, but not limited to this, the woofer may be moved in a direction parallel to the surface of the sundeck, or vertically up and down with respect to the surface of the sundeck. It is also possible to open and close the opening by moving it. The place where the speaker device is attached is not limited to the sun deck on the rear seat side, but may be mounted on the instrument panel or the side surface of the door on the front seat side.

[Effect of device]

According to the present invention, there is provided a device capable of easily adjusting a sound range by a mechanism on a speaker side as compared with a conventional method of electrically changing a frequency characteristic. This is also advantageous in terms of cost.

Compared to the conventional pop-up speaker, the bass range is not interrupted, the volume of the treble range can be adjusted by the tilt angle of the woofer, and the visibility is not obstructed because there is no protrusion into the passenger compartment.For example, it can be mounted on the rear sun deck. Since there is no protruding portion when an object is placed on it, there is an advantage that it does not hinder the rear view.

Further, in the present invention, since the directivity in the high frequency range is sufficiently taken into consideration, a good sound field can be created. In addition, it is possible to create a sound field suitable for the interior space of the setting vehicle type. It is also innovative in terms of design, and can also provide a novel device in terms of the function of changing the sound field mechanically.

[Brief description of drawings]

1 and 2 are side sectional views showing a speaker device for a vehicle compartment as an embodiment of the present invention, FIG. 3 is a view showing a conventional pop-up type speaker device, and FIG. 4 is a conventional 2-way type. It is a figure which shows a speaker. 1 ... Sundeck, 1a ... Opening 2 ... Woofer, 3 ... Motor 4 ... Tweeter

Claims (4)

[Scope of utility model registration request] 1. An opening is formed in a board for partitioning a vehicle compartment of a vehicle, a low-range speaker is attached so as to be able to open and close the opening, and a high-range speaker is provided at a rear position of the board through the opening. A speaker device for a passenger compartment installed so as to face the passenger. 2. The bass speaker is hinged to the edge of the opening so that the plane in front of the bass speaker is substantially parallel to the board surface when the bass speaker is closed. The speaker device for vehicle compartment according to claim 1, wherein the high-frequency range speaker is exposed to the vehicle interior through the opening in the opened state. 3. The speaker device for a vehicle compartment according to claim 1, wherein the board is a shelf board of a rear seat of an automobile. 4. The vehicle interior speaker device according to claim 1, wherein the board is an instrument panel of an automobile.