JPH08126088

Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPH08126088
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker with improved directivity, and in particular, it is possible to easily improve horizontal
directivity regardless of whether the speaker cabinet is vertically or horizontally placed. It relates
to a speaker.
[0002]
2. Description of the Related Art In a conventional speaker system, the frequency characteristics
at any listening point except for the front axis of the speaker differ depending on how the cabinet
is placed (longitudinal or horizontal), and the conventional speaker system is essentially vertical
In the loudspeaker designed on the premise, the horizontal directivity is particularly likely to be
deteriorated when the speaker is placed horizontally.
[0003]
Therefore, an object of the present invention is to provide a speaker which can prevent
deterioration of horizontal directivity by a simple variable attachment operation regardless of the
placement of the speaker system. It is to provide.
[0004]
[Means for Solving the Problems]
03-05-2019
1
[0005]
The speaker according to the present invention is configured to form a tweeter block in which a
plurality of tweeters are arranged, and this tweeter block can be connected to the front of the
speaker cabinet by changing the mounting angle arbitrarily.
[0006]
A plurality of tweeters are arranged in a straight line on the tweeter block, and when the speaker
cabinet is placed vertically as a normal installation form, the tweeter blocks are attached to the
front of the cabinet so that the tweeters are aligned in the vertical direction Even when the
speaker cabinet is installed horizontally, it is attached to the cabinet by changing the direction of
the tweeter block so that the tweeters line up in the vertical direction.
Electrical connection and fixation of the speaker cabinet and the tweeter block are made by the
terminal hole and the banana plug.
In addition, the tweeter block is provided with a hole corresponding to the squawker disposed in
the speaker cabinet.
[0007]
[Operation] When the speaker cabinet is vertically installed as a normal installation mode, the
tweeter block is attached to the front of the cabinet so that the tweeters are aligned in the
vertical direction, and the speaker cabinet is installed horizontally Also, attach the tweeter block
to the cabinet by changing the direction of the tweeter so that the tweeters line up vertically.
[0008]
As described above, by arranging the tweeters so as to be always aligned in the vertical direction,
the arrangement of the squawker and tweeter for reproducing the middle to high range becomes
constant regardless of whether the speakers are placed vertically or horizontally, and the
tweeters interfere with each other. There is no interference between the tweeter and the
squawer, and the deterioration of the horizontal directivity is reduced.
03-05-2019
2
As for the woofer, since the reproduction frequency is sufficiently low, the distance between the
woofer is sufficiently small compared to the wavelength, and substantially the same horizontal
directivity can be obtained in the vertical and horizontal directions.
That is, the woofer does not have to consider the directivity very much.
[0009]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 is a perspective view of the
case where the speaker is placed vertically, and FIG. 2 is a perspective view of the case where the
speaker is placed horizontally. Woofers 7 and 7 are arranged to be positioned up and down in
the lower state, and a squawker 8 is arranged at the center.
Reference numeral 2 denotes a tweeter block attached to the front of the cabinet 1, which has
two hollow tweeters 4, 4 in a straight line on a ring body 3 having a hole 3a corresponding to the
squawer 7 formed in the center. It is arranged to be located.
[0010]
At the front of the speaker cabinet 1, four tweeter terminal holes 6 are provided so as to
surround the squawker 8, the distances between the respective terminal holes 6 are equal, and
the positions are set at the corners of the square. It is arranged to be. On the other hand, on the
back side of the tweeter block 2, terminal plugs 5 made of banana plugs are provided at four
positions at the same pitch as the terminal holes 6 so as to correspond to the terminal holes 6.
[0011]
FIG. 3 is a cross-sectional view of the main part showing the attached state of the tweeter block
2. In the figure, 5a indicates a banana plug male and 5b indicates a banana plug female. As
described above, by using a banana plug as the terminal plug 5, the mounting operation with the
direction of the tweeter block 2 changed is extremely easy.
03-05-2019
3
[0012]
FIG. 4 shows the frequency characteristics of a state in which the speaker according to the
present invention is placed horizontally and the tweeter block 2 is attached so that the tweeters
4, 4 are vertically arranged (state of FIG. 2). The frequency characteristics when the type speaker
is placed horizontally, the solid line is the characteristic at an angle from the front of 0 °, the
broken line is at 15 °, and the dotted line is at 30 °. As apparent from the comparison of the
characteristics, the loudspeaker of the present invention is remarkably flattened in the middle
and high frequencies.
[0013]
According to the present invention, since the tweeter block in which a plurality of tweeters are
arranged can be arbitrarily connected to the front of the speaker cabinet by changing the
mounting angle, the speaker cabinet is installed horizontally However, it is possible to change the
direction of the tweeter block and attach it to the cabinet so that the tweeters line up vertically.
Thus, by arranging the tweeters so as to be always aligned in the vertical direction, the
arrangement of squawkers and tweeters for reproducing middle and high tone ranges becomes
constant regardless of whether the speakers are placed vertically or horizontally, interference
between tweeters, tweeters There is no interference with the squawker, and degradation of
horizontal directivity can be reduced.
[0014]
Brief description of the drawings
[0015]
1 is a perspective view showing an embodiment of the speaker according to the present
invention, when the speaker is vertically placed.
[0016]
2 is a perspective view showing an embodiment of the speaker according to the present
invention, when the speaker is placed horizontally.
[0017]
03-05-2019
4
3 is a cross-sectional view of the main part showing the attached state of the tweeter block.
[0018]
Fig. 4 Frequency characteristics in the state where the speaker according to the present invention
is placed horizontally and the tweeter block is attached so that the tweeters are vertically
arranged.
[0019]
Fig. 5 Frequency characteristics when the conventional vertical speaker is placed horizontally.
[0020]
Explanation of sign
[0021]
DESCRIPTION OF SYMBOLS 1 cabinet 2 tweeter block 3 block main body 3a hole 4 tweeter 5
terminal plug by banana plug 6 terminal hole 7 woofer 8 squawker
03-05-2019
5