close

Вход

Забыли?

вход по аккаунту

?

JPH08317486

код для вставкиСкачать
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 JPH08317486
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
bass reflex type speaker apparatus in which a bass reflex duct is provided at least on a front
baffle plate.
[0002]
2. Description of the Related Art In a conventional bass reflex type loudspeaker apparatus, as
shown in the perspective view of FIG. 7 and the cross sectional view of FIG. 8, a casing is formed
by a front baffle 1 and a rear box 2 opposed thereto.
[0003]
The front baffle 1 is provided with a bass speaker 3 and a treble speaker 4, and a bass reflex duct
5 is provided side by side with these speakers.
Further, at the center, a support post 1a is provided which connects the front baffle 1 and the
rear box 2 to increase the rigidity of the entire casing.
[0004]
SUMMARY OF THE INVENTION The conventional bass reflex type speaker apparatus having
02-05-2019
1
such a configuration requires a space and a member for providing a bass reflex port with respect
to a normal loudspeaker apparatus without a bass reflex duct. Not only has a negative impact on
the compactness, but also has the problem of causing an increase in cost.
[0005]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a bass reflex
type speaker device which solves the problems of the conventional example and allows the
compactness of the device by combining the bass reflex duct with an action other than the
original bass reflex action.
[0006]
According to a first aspect of the present invention, there is provided a bass reflex type speaker
device comprising: a front baffle on which a bass loudspeaker is supported; and a bass reflex duct
provided on the front baffle. A gist of the present invention is a high-pitched speaker mounted on
the tip end side of the bass reflex duct so as not to close the bass reflex duct.
[0007]
A bass reflex type speaker device according to a second aspect of the present invention includes
a front baffle on which a bass loudspeaker is supported, and a bass reflex duct provided on the
front baffle, at least a part of the bass reflex duct being opposed to the front baffle It is
summarized that it is connected to the rear box.
[0008]
According to the configuration of the first aspect of the invention, the bass reflex duct is also
used as the horn of the high-tone speaker, so there is no need to separately provide the high-tone
speaker installation portion on the front baffle, and furthermore, the high-tone speaker horn
There is no need to add a new one, and the device can be made compact.
[0009]
Further, according to the configuration of the second aspect of the invention, at least a part of
the bass reflex duct is connected to the rear box, so that the bass reflex duct has the function of a
strut and can reduce struts and the like for enhancing the overall rigidity of the speaker device. It
is possible to make it compact.
[0010]
02-05-2019
2
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present
invention will be described below with reference to the drawings of FIGS.
[0011]
The same reference numerals are given to the same action members as in the prior art, and the
details will be omitted.
[0012]
1 is a perspective view of a bass reflex type speaker device showing a first embodiment of the
present invention, FIG. 2 is a cross sectional view showing a bass reflex duct portion of FIG. 1,
and FIG. 3 is a front view showing a bass reflex duct portion of FIG. Reference numeral 6 denotes
a tapered cylindrical bass reflex duct arranged side by side with the bass speaker 3 of the front
baffle 1, and its diameter gradually becomes smaller toward the rear box.
The high-pitched speaker 4 is attached to the rear box side end of the bass reflex duct 6.
[0013]
As shown in FIG. 3, the mounting foot 4 a for the bass reflex duct 6 is projected to the left and
right, and the mounting foot 4 a is attached to the tip of the bass reflex duct 6, as shown in FIG. A
gap 7 is secured, and the low frequency sound radiated from the low frequency speaker 3 into
the bass reflex type speaker device is emitted to the outside from the gap 7 through the bass
reflex duct 6.
[0014]
On the other hand, the high sound radiated forward from the high sound speaker 4 attached to
the bass reflex duct 6 is amplified by the horn effect by the tapered bass reflex duct.
[0015]
Although the example in which the high-tone speaker 4 is attached to the end of the bass reflex
duct 6 is shown in the above embodiment, the high-tone loudspeaker 4 may be attached to the
middle of the bass reflex duct 6 as shown in FIG.
02-05-2019
3
At that time, it is desirable that the rear side of the bass reflex duct 6 with respect to the
mounting portion of the high-tone speaker 4 be a normal cylinder without being tapered.
[0016]
Next, FIG. 5 is a perspective view of a bass reflex type speaker device showing a second
embodiment of the present invention, and FIG. 6 is a cross sectional view showing the bass reflex
duct portion of FIG. The bass reflex duct 8 mounted vertically to 1 is connected in a state of
being joined to the rear box 2 at the tip end side 8 a.
[0017]
Furthermore, the bass reflex duct 8 is bent parallel to the surface of the rear box 2 at the front
end side 8a, and the front end portion 8b is configured to be opened inside the apparatus.
[0018]
In the case of the second embodiment, since the bass reflex duct 8 reaches the rear box, the
longitudinal rigidity of the speaker device can be enhanced.
Moreover, by bending the duct, it is possible to secure a long duct length, and it is also possible
to suppress high-frequency sound while the duct is discharged to the outside.
[0019]
As mentioned above, although the bass reflex type speaker device concerning the present
invention was explained in full detail based on the example considered to be representative, the
mode of the duct part of the bass reflex type speaker device according to the present invention is
limited to the structure of each above-mentioned example Rather, they can be appropriately
modified and implemented as long as they have the configuration requirements described in the
above-described claims, exhibit the effects of the present invention, and have the effects
described below.
[0020]
According to the bass reflex type speaker device according to the present invention, since the
02-05-2019
4
bass reflex duct has the function other than the bass reflex duct, the space required for arranging
the bass reflex duct is reduced, and the enlargement of the loudspeaker device is realized. While
being able to prevent, cost control by being able to share a member is also attained.
[0021]
Brief description of the drawings
[0022]
1 is a perspective view of a bass reflex type speaker device showing a first embodiment of the
present invention.
[0023]
2 is a cross-sectional view showing the bass reflex duct portion of FIG.
[0024]
3 is a front view showing the bass reflex duct portion of FIG.
[0025]
4 is a cross-sectional view showing a modification of the bass reflex duct portion of FIG.
[0026]
5 is a perspective view of a bass reflex type speaker device showing a second embodiment of the
present invention.
[0027]
6 is a cross-sectional view showing the bass reflex duct portion of FIG.
[0028]
7 is a perspective view of a conventional bass reflex type speaker device.
[0029]
8 is a cross-sectional view of a conventional bass reflex type speaker device.
02-05-2019
5
[0030]
Explanation of sign
[0031]
1 front baffle 2 rear box 3 bass speaker 4 treble speaker 6, 8 bass reflex duct
02-05-2019
6
Документ
Категория
Без категории
Просмотров
0
Размер файла
12 Кб
Теги
jph08317486
1/--страниц
Пожаловаться на содержимое документа