JPH05103390A - Loudspeaker adapter - Google Patents

Abstract

PURPOSE:To make the setting angle of a loudspeaker freely changeable in the forward and backward directions against a fixing base so that a listener can always obtain the optimum sound image. CONSTITUTION:This loudspeaker adapter is constituted of a hinge plate 1 and a cover 2 and the plate 1 is bent to a chevron at a hinge section 3 and, at the same time, the bent angle is made freely changeable. Then a loudspeaker 4 is mounted on the plate 1 and the bottom surface of the plate 1 is fixed to a fixing base 5. In addition, the cover 2 is constituted so that the cover 2 can cover the plate 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker adapter capable of mounting speakers such as tweeters (treble loudspeakers) and woofers (bass loudspeakers) on a fixed base such as a board of a car so that the installation angle can be changed. It is a thing.

[0002]

2. Description of the Related Art In order to obtain an optimum sound image from a speaker system, it is necessary to set the installation angle of the speaker to be suitable for the listener. Conventionally, in view of these points, in a speaker system incorporating a tweeter and a woofer, as shown in FIGS. 10 and 11, a tweeter (speaker 4) is assembled on one side of a case 17, and the case
There is a product that changes the sound image by making the tweeter movable by making 17 rotatable.

[0003]

In such a conventional product, although the tweeter can be changed in angle to the left or right with respect to the cabinet (fixed base), it cannot be changed in the front-rear direction, so that the optimum sound image is always obtained. It is impossible to get.

The present invention was devised in view of these problems, and a speaker adapter whose speaker installation angle can be changed in the front-rear direction with respect to a fixed base so that a listener can always obtain an optimum sound image. The purpose is to provide.

[0005]

To achieve the above object, the speaker adapter of the present invention comprises a hinge plate 1 and a cover 2. The hinge plate 1 is bent in a dogleg shape at the hinge portion 3 and the bending angle can be freely changed. The speaker 4 is installed on the upper surface of the hinge plate 1 and the lower surface is fixed to the fixed base 5. Further, the cover 2 is configured to cover the hinge plate 1.

[0006]

The bending angle of the hinge plate 1 can be freely changed, so that the bending angle can be reduced by pressing the speaker 4 installed on the upper surface of the hinge plate 1.
The angle is enlarged by pulling in the opposite direction. As a result, the installation angle of the speaker 4 changes, and a sound image suitable for the listener can be obtained as appropriate.

[0007]

1 to 3 show an embodiment of the present invention. The hinge plate 1 of the speaker adapter of this embodiment is formed of a thin iron plate, and a substantially middle portion thereof is bent into a dogleg shape as a hinge portion 3, and a tweeter (speaker 4) is provided on the upper surface thereof.
Is fixed with screws 6, and the lower surface thereof is also fixed with screws 6 to the car board (fixed base 5). In the hinge plate 1, a screw hole 7 for passing a screw 6, a cord hole 9 for passing a cord (not shown) of the tweeter 4, and a tweeter 4 are provided.
A driver hole 11 is also provided which is used as a through hole for the cord when the screwdriver 6 is fixed with the screw 6. The hinge portion 3 is composed of two pieces sandwiching the notch portion 12 in order to obtain stable mechanical strength and to be easily bent by a pressing force. As the material of the hinge plate 1, besides the iron plate, a material having excellent bending strength such as brass can be used.

The cover 2 is made of bellows-shaped rubber and covers the upper surface and the side surface of the hinge plate 1. When assembling the hinge plate 1 to the fixed base 5 with screws 6,
This can be easily done by pushing the cover 2 into the hinge plate 1 or flipping it up as shown in FIG.

As the structure of the hinge portion 3, as shown in FIG. 9, it is conceivable that two steel plates are clamped and assembled with the spring washer 16 sandwiched therebetween. It is advantageous to bend and form a single plate.

FIG. 4 and FIG. 5 show a case where the tweeter having the attachment fittings 15 is attached to the speaker adapter of the present invention. In this case, the accessory 15 is first fixed to the upper surface of the hinge plate 1 with the screw 6, and then the tweeter is pressed against the accessory 15 and rotated to be fixed.

FIGS. 6 to 8 show another embodiment of the present invention, in which the entire surface of the hinge plate 1 (FIG. 8) is covered with a rubber cover 2. The cover 2 has a screw covering portion 13 and a bellows-shaped cylindrical portion 14, and covers the heads of the screws 6 assembled to the tweeter (speaker 4) and the fixed base 5, and the cord 8 of the tweeter, respectively. With such a configuration, the appearance is improved, and when the hinge plate 1 is cut due to metal fatigue, the hinge plate 1
It contributes to the improvement of safety such that it can be prevented from falling off. At the same time, when the speaker adapter of the present invention is attached to the fixed base 5 with double-sided tape or the like, the attaching force is improved as compared with the case where the hinge plate 1 is directly attached, and vibration is covered. Since it is absorbed by 2, the tweeter can be protected, the cord 8 can be protected from damage during repeated bending, and peeling of the paint of the hinge portion 3 can be prevented.

[0012]

As described above, according to the present invention, since the installation angle of the speaker can be changed in the front-back direction with respect to the fixed base, the listener can easily obtain a sound image suitable for himself / herself.

[Brief description of drawings]

FIG. 1 is a sectional view showing a configuration of an embodiment of a speaker adapter of the present invention.

FIG. 2 is an assembled perspective view showing the configuration of the speaker adapter shown in the embodiment of FIG.

FIG. 3 is a side view showing a method of assembling the speaker adapter shown in the embodiment of FIG.

FIG. 4 is a side sectional view showing the assembly of the speaker adapter of the present invention and the accessory of the tweeter.

5 is a side sectional view showing a state in which a tweeter is assembled in the embodiment of FIG.

FIG. 6 is a cross-sectional view showing the configuration of another embodiment of the speaker adapter of the present invention.

7 is a perspective view showing the configuration of the speaker adapter shown in the embodiment of FIG.

8 is a perspective view showing a configuration of a hinge plate of the speaker adapter shown in the embodiment of FIG.

FIG. 9 is a plan view showing a configuration of an embodiment of a hinge portion of the speaker adapter of the present invention.

FIG. 10 is a cross-sectional view showing a configuration of an example of a conventional rotary speaker.

11 is a perspective view showing a configuration of a speaker system incorporating the speaker of FIG.

[Explanation of symbols]

 1 hinge plate 2 cover 3 hinge part 4 speaker 5 fixed base 6 screw 7 screw hole 8 cord 9 cord hole 10 driver 11 driver hole 12 notch 13 screw cover 14 cylinder part 15 fittings 16 spring washer 17 case

Claims (1)

[Claims] 1. A hinge plate, which is bent in a dogleg shape at a hinge portion, is capable of changing a bending angle, has a speaker installed on an upper surface, and a lower surface is fixed to a fixed base, and a cover for covering the hinge plate. Speaker adapter.