JPS58170189A - Speaker cabinet - Google Patents

Abstract

PURPOSE:To connect several speakers in good order and to improve the directivity, by tilting both top and bottom surfaces of a speaker cabinet so that these two surfaces get closer to each other toward the rear edge of the cabinet. CONSTITUTION:Both top surface 4a and bottom surface 4b are tilted so that they cross each other with 45 deg. at their extended rear edges. A woofer 5 is attached to a baffle surface 4c, and a sub-baffle plate 6 is also attached rotatably to the surface 4c. A squawker 7 and tweeter 8 are attached to the plate 6. Therefore the locations are changed for the squawker 7 having intensive directivity and the tweeter 8 by turning the plate 6. Thus the desired characteristics can be simply obtained. Then the surface 4b of a speaker cabinet 4 is set on a floor, a desk 9, etc. as shown in the figure so that the radiating axis of the sound wave formes 22.5 deg. to the surface 9. Thus the sound wave is transmitted directly to a listener.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speaker cabinet which improves directivity by connecting several speaker cabinets in an orderly manner by tilting the top and bottom surfaces to each other.

Most conventional speaker systems have speakers 2.3 attached to a rectangular parallelepiped speaker cabinet 1, as shown in FIG. For this reason, the radiation axis of the sound source is fixed in the horizontal direction, and even when several speaker systems are connected to form a part of the speaker system, it is only possible to connect them horizontally or vertically. .

Some methods are known in which the rear lower surface of the speaker cabinet 1 is cut diagonally and the cut surface 11L is placed on the floor, etc., as shown in FIG. 2, so that the speaker 2°3 is tilted. This type of speaker system has the problem that it is difficult to arrange several speaker systems one on top of the other in the vertical direction, and if they are arranged side by side in the horizontal direction, the system becomes flat.

The present invention provides a speaker system that solves these conventional problems.

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

In Figs. 3 and 4, 4 is a subica cabinet integrally molded from resin, aluminum diecast, etc.), 41L,
4b is the top surface and bottom surface, 40 is the baffle surface, 4d is the rear surface, and 4151 and 415 are the side surfaces. And the above top surface 4a
and the bottom surface 4b are inclined to each other at an angle such that their extended rear ends intersect at 46 degrees. Further, the Uno 6 is attached to the baffle surface 4C, and a sub-baffle plate 6 is rotatably attached to the sub-baffle plate 6, and a squawker 7 and a tweeter 8 are attached to the sub-baffle plate 6. That is,
By rotating the sub-baffle plate 6, the positions of the highly directional squawker 7 and tweeter 8 are changed, making it easy to obtain the desired characteristics.

In this way, if the bottom surface 4b of the speaker cabinet 4 is installed on the floor surface or the top surface 9 of a desk as shown in FIG. , the sound waves are transmitted directly to the listener 10.

Also, when installing speaker systems on the left and right sides for stereo playback as shown in Figure 6, the bottom 1
If the speaker 4b is attached to the wall 11 of the room, the radiation axis of the sound waves will be oriented at 22.6 degrees from the wall 11, and in this case as well, the sound waves will be transmitted directly to the listener 1o.

Also, as shown in Figure 7, two speaker cabinets 4, 4
are stacked up and down, and the sound waves from the KR[ii扛"・each"■"' stem propagate in the direction of the arrows between the two orthogonal slave surfaces of the room, resulting in the total directivity and sound energy can be improved.

In addition, if four speaker cabinets are connected and installed closely against one wall 14 as shown in Figure 8, the sound waves from each speaker system will be radiated approximately 180 degrees across the wall 14 as shown by the arrow. improved directivity,
At the same time, the sound can be improved by the panfuru effect of the wall surface 14.

Furthermore, by stacking eight speaker systems in the structure shown in FIG. 9, it is possible to construct a complete omnidirectional speaker system with seven stems.

In addition, in FIGS. 8 and 9, if 4i+a of each speaker cabinet 4 is detachably attached to the annular holder 16 using well-known fixing devices such as screws, a group of speaker systems can be stably installed. be able to.

In addition, in the above embodiment, the top surface 4a and the bottom surface 4b are inclined so that they intersect at an angle of 46 degrees, but if the slopes are made more gentle, when stacked vertically like the 10th row,
The entire system curves into a gentle arch. Even in this way, directivity and sound energy can be improved.

In any case, since the speaker cabinet can be made axially symmetrical, there is no need to configure separate cabinets for the left channel and the right channel, and in this respect it is possible to reduce costs and increase production.

As described above, in the present invention, the top and bottom surfaces of the speaker cabinet are inclined toward each other in the direction K toward the rear end, so that several speaker systems can be connected in an orderly manner to improve the directivity of the entire system. can be improved.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views of conventional examples, and Figures 3 and 2 are perspective views of conventional examples. 4 is a perspective view and a front view of one embodiment of the present invention 1flJ,
6 to 9 are side views showing examples of its use, and FIG. 10 is a perspective view of another embodiment of the present invention. 4...Speaker cabinet, 41L...°
°°Top surface, 4b...Bottom surface, 40...Baffle surface, 4d...Rear surface, 46...Side surface, 6...Uno 1.6...Sub baffle plate, 7...Squawker, 8...Tweeter, 9...Floor surface, 10-14... Wall surface, 15...Annular holder/Name of agent: Patent attorney Toshio Nakao and 1 other person
2513 Figure 4 4 Figure 7 Figure 8 Figure 9 Figure 10

Claims (1)

[Claims] (1) A speaker cabinet characterized in that the top surface and the bottom surface are inclined toward each other toward the rear end. (2) The speaker cabinet according to claim 1, wherein the top surface and the bottom surface are inclined to each other at an angle such that a surface obtained by extending the rear end of the main surface intersects at 46 degrees.