JPS6319118B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-way speaker system, in which the position of a speaker for middle and high ranges, which has strong directivity, can be easily changed, and the speaker can be switched between a bass reflex type and a closed type in conjunction with the change in the position of the speaker. This makes it possible to obtain characteristics that match the installation conditions of the speaker system.

Conventional multi-way speaker systems
As shown in the figure, a woofer 3, a squawker 4, and a tweeter 5 are simply fixedly attached to a baffle plate 2 on the front side of a speaker box 1 in a line. For this reason, depending on the space of the room and the installation position of the speaker box, the speaker box 1 may be placed as shown in Figure 2.
When installed in a horizontal position, there is a problem that the reproduction characteristics are impaired due to the directivity of the squawker 4 and the tweeter 5.

In addition, as shown in FIGS. 1 and 2, the full board 2
A so-called bass reflex type speaker system is also known, in which a bass reflex port 6 is installed in the speaker box to enhance the reduction, but depending on where the speaker box is installed, there may be cases where you want to use it as a closed speaker system. However, there was a problem that it could not be easily used in this way.

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, 7 is a speaker box, 8 is a front butt-full plate, 9 is a woofer attached to a part of the speaker box, 10 is a sub-buffle plate rotatably attached to a part of the speaker box, 11, Reference numeral 12 denotes a squawker and tweeter attached to the sub-buffer plate 10, 13 and 14 sealing indicators provided protruding forward on the outer periphery of the sub-buffer plate 10, 15 a bass reflex port provided on the sub-buffer plate 8, and 16
is an opening/closing component mounted rotatably around a shaft 17. Note that this opening/closing component 16 is always biased in a direction in which one end thereof is removed from the bass reflex report 15.

In the above configuration, when listening in a normal sized room, the sub-battery board 10 is rotated as shown in FIG.
Just line them up in a vertical line. At this time, the opening/closing component 16 rotates as shown in FIG. 3, and its tip portion is removed from the bass reflex port 15. Therefore, in this case, it can be used as a bass reflex type speaker system completely similar to the speaker system shown in FIG.

On the other hand, when using this speaker system in a car, etc., in order to stabilize the installation state of the speaker box 7 and from the standpoint of space, it is necessary to
The speaker box 7 is often installed horizontally as shown in FIG. In this case, since the listening room is a relatively narrow space, the squawker 11, which has strong directivity,
It is desirable for the tweeter 12 to be as close to the center as possible, that is, as close to the woofer as possible, rather than spread out from side to side. Also, when listening in such a small space, it is better to suppress the low frequency range rather than increasing it more than necessary for stable playback.

Therefore, in this case, the sub-buffle plate 10 is rotated 90 degrees as shown in FIG. 4, so that the squawker 11 and tweeter 12 are brought as close to the woofer 9 as possible. At this time, one sealing indicator 13 pushes one end of the opening/closing component 16 outward, so its tip seals the bass reflex port 15 and switches the speaker system to a closed speaker system. In this way, regeneration characteristics suitable for the vehicle interior are achieved.

In the above embodiment, the opening/closing part 16 is rotated by the rotation of the sub-buffle plate 10, but a member provided inside the speaker box is rotated together with the sub-buffle plate 10 to close the bass reflex port 15. Good too.

As described above, the present invention changes the mounting position of the highly directional mid-high range speaker by rotating the sub-broadcast plate, and also seals the bass reflex port when the sub-broadcast board is rotated by a predetermined angle. Therefore, depending on the installation conditions of the speaker box, it is possible to change the speaker arrangement and to switch between a bass reflex type and a closed type very easily, and the best reproduction characteristics can always be achieved.

[Brief explanation of the drawing]

1 and 2 are front views of a conventional speaker system, and FIGS. 3 and 4 are front views of a speaker system according to an embodiment of the present invention. 7...Speaker box, 8...Bassful board,
9...wooha, 10...subbatsful board, 11...
...Squawka, 12...Tweeter, 13,14...
Sealing indicator, 15... Bass reflex port, 16...
Opening and closing parts.

Claims (1)

[Claims] 1. Attach multiple speakers for medium and high ranges to a sub-bump full board, and attach this sub-bump full board to the butt-full board of the speaker box so that it can rotate freely.
A speaker system characterized in that a bass reflex port is provided on the double full plate near the sub double full plate, and the bass reflex port is sealed when the sub double full plate is rotated by a predetermined angle.