JPS6319119B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-way speaker system, in which characteristics suitable for the installation conditions of the speaker system can be obtained by easily changing the position of speakers for mid-high range, which have strong directivity. At the same time, the speaker for middle and high ranges can be moved to any desired position.

A conventional multi-way speaker system simply has a woofer, squawker, tweeter, etc. fixedly attached to a butt-full plate on the front of a speaker box. For this reason, when the speaker box is installed in a horizontal position due to the space of the room, the installation position of the speaker box, etc., a problem arises in that the playback characteristics deviate from the design intention due to the directivity of the squawker or tweeter.

The present invention solves these conventional problems by making it possible to easily change the position of a mid-high range speaker such as a squawker or tweeter, and also enables the mid-high range speaker to be changed to an arbitrary position. The present invention provides a speaker system in which sound quality characteristics can be finely varied.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In Figures 1 to 4, 1 is a speaker box, 2 is a baffle plate in front of it, 3 is a woofer attached directly to the buffle plate 2, and 4 is a buffle plate 2.
A sub-button full plate rotatably attached to the 5.
Reference numeral 6 denotes a squawker and tweeter attached to the sub-buffer plate 4, 7 a bass reflex port formed on the buff-full plate 2, 8 an operating knob for parts such as an attenuator attached to the but-full plate 2, and 9 fixing the sub-buffer plate 4. This is a screw for

When the above configuration is installed in a normal room, the sub-buffle plate 4 may be rotated as shown in FIG. 2, and the woofer 3, squawker 5, and tweeter 6 may be arranged in a vertical line. In this way, it can be handled in the same way as a conventional, very common speaker system.

On the other hand, when installing it inside a car, it is often installed horizontally as shown in FIG. 1 due to space and stability considerations. At this time, the sub-buffle plate 4 is rotated as shown in FIG. 1 so that the squawker 5 and tweeter 6 are arranged perpendicularly to the longitudinal direction of the speaker box 1. In this way, even if two stereo speaker boxes 1 are arranged side by side, the squawker 5 and tweeter 6, which have strong directivity, are placed in the center, making it possible to achieve sound quality characteristics suitable for a narrow vehicle interior.

By the way, when the sub-buffle plate 4 is rotatably mounted in this way, it is not possible to finely change the sound quality characteristics unless it is fixed at an arbitrary rotation angle.

Therefore, in this embodiment, a configuration as shown in FIGS. 3 and 4 is adopted so that the sub-buffle plate 4 can be fixed at any angle. In FIGS. 3 and 4, 2a is a circular mounting hole provided in the buttful plate 2, 2b is a counterbore provided on the inner periphery, 2c is a ridge protruding around the back surface of the mounting hole 2a, and 4a 4b is a protrusion protruding from the back surface of the sub-buttful plate 4; 10 is a fixture made of a metal plate with one end 10a bent; This is a screw hole provided in the fixture 10. In this way, the fixture 10
One end 10a is engaged with the protrusion 2c of the buttful plate 2, the other end is placed on the protrusion 4b of the sub-buttful plate 4,
By tightening the tip of a screw 9 inserted from the front through the through hole 4a of the sub-buffle plate 4 into the screw hole 10b of the fixture 10, the sub-buffle plate 4 can be attached to the buffle plate 2. Since the fixture 10 and the screws 9 can be fixed at any position around the mounting hole 2a, the sub-buffle plate 4 can be rotated at any angle.

Incidentally, as shown in FIG. 5, if a protrusion 10c is provided at one end of the fixture 10, and this protrusion 10c is fitted into a recess 2d provided in the protrusion 2c of the buttful plate 2, the screw 9 is tightened. , it can also be fixed at a predetermined desired rotation angle. In this case, by providing a large number of recesses 2d, the sub-buffle plate 4 can be fixed at substantially any angle.

Also, if the screw 9 completely comes off when loosening the screw 9, the sub-buttful plate 4 will be removed from the butt-full plate 2.
This causes problems such as the wires to the squawker 5 and tweeter 6 breaking. To prevent this, a nut 11 may be screwed onto the tip of the screw 9 as shown in FIGS. 6 and 7, and this may be locked with adhesive or the like. In addition, as shown in Figs.
When fixing the stopper 13 with the pins 2e and 2e provided on the back side of the buttful plate 2 and fixing the sub-buffle plate 4 at any angle within this range, What is necessary is just to fit the recessed part 13a into the narrow diameter part 9a provided in the pin 9.

As described above, according to the present invention, the sub-broadcast plate can be fixed at any rotation angle, so that the sound quality characteristics can be finely varied in accordance with the installation conditions of the speaker system. Moreover, since only the heads of the screws are visible on the front side of the sub-button full plate, it has an excellent appearance.

[Brief explanation of the drawing]

1 and 2 are front views of an embodiment of the present invention,
3 and 4 are rear views and sectional views of the essential parts, FIG. 5 is an exploded perspective view of the second embodiment of the present invention, and FIGS. 6 and 7 are the third embodiment of the present invention. FIG. 3 is a back view and a cross-sectional view of the example. 1... Speaker box, 2... Buff board, 2
a...Mounting hole, 3...Woofer, 4...Sub-button full plate, 5...Squawker, 6...Tweeter, 7...
Bass reflex port, 8... Parts knob, 9... Screw, 10... Fixture, 11... Nut, 12...
Bis, 13... Stoppa.

Claims (1)

[Claims] 1. A plurality of speakers for medium and high ranges are attached to a disc-shaped sub-buff-full plate, and the periphery of this sub-buff-full plate is attached to the counterbore around the circular mounting hole provided in the buff-full plate of the speaker box, and the speaker box is attached to the speaker box. Place a fixing tool in a position that spans both the sub-buttful plate and the butt-full plate on the inside of the board, insert a screw from the front side of the sub-buttful plate through the through hole provided in the sub-buttful plate, and fix the tip of this screw to the above. A speaker system characterized by being tightened into a screw hole of a tool.