JPS6114237Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a speaker device for use in a vehicle.

Recently, more and more cars are equipped with audio equipment, but there are often problems with how and where to install speakers inside the car. Since it is not possible to install a large speaker box in a vehicle interior where space is limited, speakers are usually mounted on the rear tray of a vehicle as shown in FIG. In this case, since the speaker is mounted upward, the sound is emitted at right angles to the listener, which significantly reduces the acoustic effect.

FIG. 6 is a sectional view of a coaxial type two-way speaker attached to the rear tray of an automobile. 1' is the car rear tray board, 2' is the speaker mounting grill, 3' is the woofer speaker frame, 4' is the woofer speaker cone paper,
5' is a tweeter speaker frame, and 6' is a tweeter speaker cone paper. The woofer and tweeter speakers are connected and fixed using a non-magnetic material 17. A wire mesh 14' is attached to the front of the speaker. Conventionally, a coaxial type two-way speaker with such a configuration was mounted upward on the board of the rear tray.

From the viewpoint of acoustic effects, the position and direction of the speaker is not so critical in the bass range, but the positional relationship between the listener and the speaker is very important in the mid-to-high range. For example, if the speaker is mounted upward as in the conventional examples shown in FIGS. 5 and 6, the high frequency range will be attenuated, leaving the low frequency range attenuated, resulting in a significant deterioration of the acoustic effect. Particularly in the case of stereo sound, a lack of treble range causes the sound to spread out, lack a sense of presence, and cause a fatal problem in that the sound deviates from the Hi-Fi orientation.

The present invention has been made to eliminate the above-mentioned drawbacks, and embodiments thereof will be described in detail below with reference to the drawings. In Figures 1, 2, and 3, 1 is a board for the rear tray of an automobile;
A speaker mounting grill 2 is fixed here. A woofer speaker 3 is mounted inside this speaker mounting grill 2. The tweeter speaker 5 is stored in the mounting boxes 7 and 13,
A wire mesh 15 is attached to the front surface of the tweeter speaker 5, and struts 8 having a cylinder 9 at the tip are formed radially from the mounting box 7 in a T-shape.
A plurality of grooves 10 are formed on the outer periphery of the cylinder 9, and a bearing part 15 and a mounting piece 11 are provided on the cylinder part 9 as a part of the speaker mounting grille 2.
By clamping the tweeter speaker 5 with the screws 12 and fixing it with the screws 12, the tweeter speaker 5 is configured to be rotatable about the support point (the cylindrical portion 9) to the speaker mounting grille 2. Since a convex portion 16 is provided on the inside of the mounting piece 11, when the convex portion 16 and the groove 10 of the cylinder 9 match, an appropriate degree of moderation can be added to the rotation of the tweeter speaker 5. In addition,
The lead wire of the tweeter speaker 5 is connected to the column 8 and the cylinder 9.
By connecting the lead wire to the woofer speaker 3 through the inside, the lead wire is prevented from being seen from the outside. A wire mesh 14 is attached to the front of the woofer speaker 3, but the wire mesh 14 is attached to prevent it from hitting the mounting boxes 7, 13 that house the tweeter speaker 5 and the support 8.
It is dented. In this case, woofer speaker 3
Needless to say, care must be taken to prevent the wire mesh 14 from hitting the cone paper 4.

When actually using a speaker device with such a configuration, the tweeter speaker 5 is connected as shown in Fig. 3.
can be heard by raising the woofer speaker 3 to a position almost perpendicular to the mounting surface. When listening with the tweeter speaker 5 facing the listener in this way, the sound is transmitted directly to the listener compared to when the tweeter speaker 5 is facing upward, so it is possible to listen efficiently with less attenuation. Also, depending on the listener's preference, source, location, etc., if you want to hear the high frequency range with a little attenuation, you can tilt the tweeter speaker 5 a little or completely lay it down (horizontal). Another feature is that you can listen to the sound quality.

Furthermore, in some cases, such as when placing luggage on the board 1 of the rear tray, the tweeter speaker 5 can be stored completely lying down, and the speaker does not get in the way.

Furthermore, as shown in Figure 4, in the case of a light van or hatchback type vehicle that does not have a rear tray, the tweeter section can be installed on both sides of the vehicle interior so that it faces forward when it is upright. You will get a highly effective speaker system.

Note that it can be used not only as a speaker system for automobiles but also as a speaker system for home use. That is, according to the above embodiment, even if the speaker box is laid down, if the tweeter speaker is set up, it is possible to efficiently listen to high-frequency sounds.

Further, by configuring the tweeter speaker to rotate freely as in the embodiment, a novel design can be realized, and a product with high design appeal can be manufactured.

As described in the embodiments above, according to the speaker device of the present invention, the tweeter speaker can be made almost orthogonal to the woofer speaker,
Practically excellent effects can be expected, such as being able to obtain desired acoustic effects using various forms. Moreover, the tip of the support provided in the box housing the small-diameter speaker is attached to a part of the hole periphery of the mounting grill of the large-diameter speaker so that it can be rotated with moderation. When the aperture speaker is moved to a position almost perpendicular to the large aperture speaker, the small aperture speaker does not block the sound emitted by the large aperture speaker, and the acoustic effect of both large and small speakers can be improved. has advantages.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of one embodiment of the speaker device of the present invention, FIG. 2 is an exploded perspective view of the main parts, and FIG.
The figure is a side view of the speaker device of the present invention installed in the rear tray of a car, Figure 4 is a top view of the speaker device of the present invention installed in a light van type car, and Figure 5 is a side view of the speaker device of the present invention installed in the rear tray of a car. FIG. 6 is a side view of a conventional speaker device installed facing upward, and FIG. 6 is a sectional view of the main part thereof. 1... Rear tray board, 2... Speaker mounting grill, 3... Woof speaker, 4... Cone paper, 5... Tweeter speaker, 6... Cone paper, 7, 13... Mounting box, 8... Support column, 9...Cylinder, 10...Groove, 11...Mounting piece, 12...Screw, 14...Wire mesh, 15...Bearing portion, 16...Convex portion.

Claims (1)

[Scope of utility model registration request] It is equipped with a large-diameter speaker and a small-diameter speaker that can be arranged coaxially with the large-diameter speaker, and a shaft portion is provided at the tip of a support that projects radially from the outer periphery of a box housing the small-diameter speaker, This shaft part is rotatably attached to a bearing part provided on the periphery of the hole of the mounting grill of the large-diameter speaker, and a rotation moderation mechanism is provided between the shaft part and the bearing part. A speaker device configured such that the small-diameter speaker can be moved to a position at least substantially perpendicular to the mounting surface of the large-diameter speaker by rotating a support.