JP4186053B2 - Speaker device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a speaker device, and more particularly to a speaker device in which a speaker body is attached to an opening of a bottom plate constituting a baffle plate of a cabinet.
[0002]
[Prior art]
A speaker device is widely used as an audio output device for audio equipment or video equipment. In particular, in order to enhance the acoustic effect, it is preferable to use a speaker corresponding to each of the high frequency band, the mid frequency band, and the low frequency band. In particular, a speaker composed of a bass woofer can enhance the acoustic effect by reflecting on the floor surface. Therefore, with regard to the woofer, whether the speaker is attached to the opening of the intermediate plate or the bottom plate of the cabinet, and the sound is emitted from the sound emission port formed on the lower side of the intermediate plate and the side of the bottom plate? The sound is emitted from the opening provided in the bottom plate.
[0003]
[Patent Document 1]
JP-A-60-259086 [Patent Document 2]
JP 2000-48637 A [Problems to be Solved by the Invention]
In particular, a low-frequency speaker woofer is attached to the opening part of the baffle plate that also serves as the bottom plate of the cabinet, and the sound is emitted downward. Can be put out to the side. In this case, however, the reflection of sound may change depending on the material of the floor surface and the surface properties. In particular, when a carpet or carpet is laid on the floor and a speaker device is placed on it, the sound emitted from the woofer is absorbed by the carpet or carpet, and the low-frequency sound is not transmitted to the side. There is a problem.
[0004]
The present invention has been made in view of such a problem, and an object of the present invention is to provide a speaker device in which sound emitted downward is effectively spread to the side surface.
[0005]
[Means for Solving the Problems]
The main invention of this application is:
In the speaker device in which the speaker body is attached to the opening of the baffle plate of the cabinet,
Said baffle plate is composed of a bottom plate of the cabinet, it is attached to the speaker main body downward to the opening of the bottom plate, so as to distribution of the reflection plate for reflecting sound from the speaker body to the underside of the bottom plate ,
The present invention relates to a speaker device, wherein the reflecting plate is formed of a transparent or translucent light guide plate, and light from a light emitting element attached to a side surface of the support leg is incident on the reflecting plate to shine at a predetermined position. Is.
[0006]
Here, it is preferable that a supporting leg is attached to the bottom plate of the cabinet, the reflecting plate is supported by a side surface of the supporting leg, and a gap is formed between the reflecting plate and the floor surface. Moreover, it is preferable that a duct is provided in the cabinet.
[0007]
Another major invention of the present application is:
Attach the speaker body facing downward in the opening of the bottom plate of the cabinet,
A reflector is disposed on the lower side of the bottom plate so as to face the speaker body, and the reflector is supported by the side surfaces of the support legs of the cabinet ,
The reflecting plate is composed of a transparent or translucent light guiding plate, a speaker apparatus in which a predetermined position light is incident on the reflector from the light emitting element mounted on a side surface of said support legs and said light Rukoto It is about.
[0008]
Here, it is preferable that the reflection plate is formed of a transparent or semi-transparent light guide plate, and light from a light emitting element attached to a side surface of the support leg is incident on the reflection plate to shine at a predetermined position. Further, it is preferable that a predetermined position on the surface of the reflecting plate is a rough surface, and the rough surface is illuminated by light from the light emitting element. Moreover, it is preferable that the rough surface of the said reflecting plate is comprised from a satin surface.
[0009]
In general, when a speaker woofer is arranged downward on the bottom plate of a cabinet, the sound emitted is absorbed by the carpet under installation conditions where floor properties, particularly carpets, are present. Therefore, in order to prevent a change in sound quality, a reflecting plate is provided to reflect the sound laterally from below, and the reflecting plate is made of a transparent material and has a lighting function. In particular, by fixing the reflecting plate to the support leg and mounting the light emitting element inside the support leg, it is possible to achieve a structure that does not impair the function in terms of design.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The invention included in the present application will be described below with reference to the illustrated embodiments. 1-5 has shown the external appearance of the speaker apparatus of this Embodiment. That is, as apparent from the comparison between FIG. 2 and FIG. 5, the speaker device has an elongated rectangular shape with a constant width on the front surface and the upper surface. On the other hand, the back and bottom are trapezoidal. And when it mounts with the bottom face down, and when it mounts with the back face down, the shape becomes exactly the same, and it has a high design.
[0011]
As shown in FIGS. 1 and 6, a partition plate 11 is provided on the upper side of the cabinet 10, and the opening on the front side of the partition plate 11 is closed by the partition plate 12, so that the rear side of the partition plate 11 is Is closed by a rear partition plate 13 to form a speaker box 15. The bottom of the cabinet 10 is composed of a bottom plate 14.
[0012]
A speaker box 15 is formed by the partition plates 11, 12, 13 and the bottom plate 14 as described above. A circular opening 16 is formed in the bottom plate 14 at the bottom of the speaker box 15, and a low-frequency speaker 17 including a woofer is attached to the circular opening 16 from the lower side of the bottom plate 14. A reflector 18 is disposed below the low-frequency speaker 17.
[0013]
As shown in FIGS. 7 and 8, a single support leg 21 is attached to the front side of the cabinet 10 and the bottom plate 14, and a pair of support legs 22 is provided to the rear side. Is provided. Three intermediate support legs 23 are provided between the support legs 21 on the front side and the support legs 22 on the rear side. The reflector 18 is supported by the three intermediate support legs 23.
[0014]
The reflection plate 18 is made of, for example, a transparent acrylic resin, and notches 26 are formed in portions supported by the support legs 23, so that these notches 26 are held by the holding portions 27 of the support legs 23. It has become. In particular, as shown in FIG. 9, a printed circuit board 28 is attached to the support leg 23 in the vertical direction, and a light emitting diode 29 mounted on the printed circuit board 28 faces the notch 26 of the reflector 18. It is supposed to be. Therefore, according to such a configuration, light from the light emitting diode 29 is introduced into the reflecting plate 28 through the notch 26. A rough surface 30 is formed at a predetermined position of the reflector 18 as shown in FIGS. The rough surface 30 is formed from, for example, a satin surface. The portions other than the rough surface 30 are mirror-finished so that the light from the light emitting diode 29 is totally reflected.
[0015]
As shown in FIGS. 1 and 4, a chassis 36 is held on the upper side of the speaker box 15 of the cabinet 10. The chassis 36 holds a pair of printed circuit boards 37 and 38. Here, one printed circuit board 37 forms a signal circuit, and the other printed circuit board 38 forms a power supply circuit. These chassis 36 are attached to a mounting plate 40 provided in the cabinet 10. The rear side portion of the cabinet 10 covers the terminal plate 33 with the rear cover 32 shown in FIG. 4, thereby closing the rear side opening of the cabinet 10.
[0016]
In the configuration as described above, low-frequency sound is emitted downward from the low-frequency speaker 17 constituting the woofer as shown in FIG. This sound is reflected by the reflecting plate 18 disposed on the lower side and guided to the side. That is, the sound is reflected by the reflector 18 without being reflected by the floor below the bass speaker 17.
[0017]
The speaker device composed of the low-frequency speaker 17 constitutes a so-called bass reflex type speaker device. That is, a duct 41 is provided in the speaker box 15 so as to penetrate the bottom plate 14, and the sound wave emitted backward from the diaphragm of the speaker 17 by this duct 41 is rotated by 180 degrees when passing through the duct 41, thereby The sound output from the front side of the speaker 17 is in phase.
[0018]
By using such a reflector 18, the sound from the bass speaker 17 is not reflected on the floor surface. Therefore, it is not affected by the installation conditions of the speaker device, particularly the structure of the floor surface and its properties. For example, even on a carpet or carpet floor, the sound from the speaker 17 is not absorbed by the carpet or carpet, and the sound quality is not changed. Therefore, it is possible to reliably emit low-frequency sound without impairing the acoustic effect.
[0019]
In addition, the reflecting plate 18 exhibits an illumination effect. That is, since the light emitting diode 29 mounted in the support leg 23 is turned on, the light from the light emitting diode 29 is introduced into the reflecting plate 18 through the notch 26 of the reflecting plate 18 as shown in FIG. 9A. Here, the reflecting plate 18 is made of a transparent material such as acrylic resin, and the outer surface is mirror-finished. Further, as described above, the reflecting plate 18 is at a predetermined position, for example, a portion close to the outer peripheral side of the upper surface and a substantially center of the lower surface. Each rough surface 30 is formed as shown in FIG. 9B. Therefore, the light emitted from the light emitting diode 29 is totally reflected on the surface of the reflecting plate 18 as shown in FIG. 9A, and also shines on the rough surface 30 to generate light outside. The other light is emitted from the outer peripheral edge at a position opposite to the notch 26 of the reflector 18 (see FIG. 8).
[0020]
Therefore, it is possible to generate a high illumination effect by selecting an optimal color for the light emitting diode 29 provided on the printed circuit board 28 of the support leg 23, and an extremely high quality design. It becomes possible to demonstrate.
[0021]
Although the invention included in the present application has been described with the illustrated embodiment, the invention included in the present application is not limited to the above-described embodiment, and various modifications are possible within the scope of the technical idea of the invention included in the present application. Is possible. For example, in the said embodiment, although the reflecting plate 18 is comprised from the acrylic resin which is a transparent material, you may comprise the reflecting plate 18 from a glass plate. Various modifications can be made to the mounting position or mounting means of the reflecting plate 18. Further, the arrangement of the rough surface 30 formed thereon can be arbitrarily changed.
[0022]
【The invention's effect】
The main invention of the present application is a speaker device in which a speaker body is attached to an opening portion of a baffle plate of a cabinet, the baffle plate is composed of a bottom plate of the cabinet, and the speaker body is attached downward to the opening portion of the bottom plate, the bottom plate so as to distribution of the reflection plate for reflecting sound from the speaker body to the lower side of the reflection plate is composed of a transparent or translucent light guiding plate, light from the light emitting element mounted on the side surface of the supporting leg is reflected The light is incident on the plate so that a predetermined position shines .
[0023]
Therefore, according to such a speaker device, the sound emitted from the speaker main body attached to the opening portion of the baffle plate constituted by the bottom plate is reflected by the lower reflection plate and spreads to the side.
[0024]
Another main invention of the present application is that a speaker main body is attached downward to an opening of a bottom plate of a cabinet, and a reflector is arranged on the lower side of the bottom plate so as to face the speaker main body. is supported by the side of the support leg, reflector is made of a transparent or translucent light guiding plate, light from the light emitting element mounted is incident on the reflection plate to the light so that a predetermined position on the side surface of the supporting leg It is a thing.
[0025]
Therefore, according to such a speaker device, the sound emitted from the speaker body attached to the opening of the bottom plate is reflected to the side by the reflecting plate. Therefore, the sound from the speaker body is absorbed even when there is a carpet or carpet, for example, without being affected by the installation conditions of this speaker device, that is, the material and properties of the floor, or the presence or absence of carpets or carpets. This eliminates the change in sound quality.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an overall configuration of a speaker device.
FIG. 2 is a plan view of the speaker device.
FIG. 3 is a side view of the speaker device.
FIG. 4 is a rear view of the speaker device in a state where a rear cover on the back side is not attached and in a state where the rear cover is attached.
FIG. 5 is a front view of the speaker device.
6 is a longitudinal sectional view of the speaker device, which is a sectional view taken along line AA in FIG.
FIG. 7 is a bottom view of the speaker device.
FIG. 8 is a bottom view of the speaker device showing a state of light emission from the light emitting diode.
FIG. 9 is a longitudinal sectional view of a main part showing a light emitting operation of a reflecting plate.
[Explanation of symbols]
10 ... Cabinet, 11 ... Partition plate (upper side), 12 ... Partition plate (front side), 13 ... Partition plate (rear side), 14 ... Bottom plate, 15 ... Speaker box, 16 ... Circular opening , 17 ... Low-frequency speaker (woofer), 18 ... Reflector, 21 ... Support leg (front side), 22 ... Support leg (rear side), 23 ... Support leg (intermediate side), 26 ... Notches, 27 ... Holding section, 28 ... Printed circuit board, 29 ... Light emitting diode, 30 ... Rough surface (pear surface), 32 ... Rear cover, 33 ... Terminal board, 36 ... Chassis, 37 ... Printed circuit board (signal circuit), 38 ... Printed circuit board (power circuit), 40 ... Mounting plate, 41 ... Duct

Claims (6)

In the speaker device in which the speaker body is attached to the opening of the baffle plate of the cabinet,
Said baffle plate is composed of a bottom plate of the cabinet, it is attached to the speaker main body downward to the opening of the bottom plate, so as to distribution of the reflection plate for reflecting sound from the speaker body to the underside of the bottom plate ,
The reflecting plate is composed of a transparent or translucent light guiding plate, a speaker apparatus in which a predetermined position light is incident on the reflector from the light emitting element mounted on a side surface of said support legs and said light Rukoto .   The support leg is attached to the bottom plate of the cabinet, the reflection plate is supported by a side surface of the support leg, and a gap is formed between the reflection plate and a floor surface. Speaker device.   The speaker device according to claim 1, wherein a duct is provided in the cabinet. Attach the speaker body facing downward in the opening of the bottom plate of the cabinet,
A reflector is disposed on the lower side of the bottom plate so as to face the speaker body, and the reflector is supported by the side surfaces of the support legs of the cabinet ,
The reflecting plate is composed of a transparent or translucent light guiding plate, a speaker apparatus in which a predetermined position light is incident on the reflector from the light emitting element mounted on a side surface of said support legs and said light Rukoto . The speaker device according to claim 4 , wherein a predetermined position of the surface of the reflector is a rough surface, and the rough surface is illuminated by light from the light emitting element. 6. The speaker device according to claim 5 , wherein the rough surface of the reflecting plate is formed of a satin surface.

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