JP2004040567A - Speaker system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speaker system in which a user can adjust the height of the speaker system in accordance with its use environment and user's preference. <P>SOLUTION: This speaker system comprises a speaker unit 2 and a stand 3 connectable to the speaker unit 2. The height of the speaker unit 2 can be adjusted by configuring the stand 3 so as to make a plurality of joint units 6 connectable in the direction of its height. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a speaker device.
[0002]
[Prior art]
2. Description of the Related Art In recent years, an AV device used in a general home or the like uses a plurality of speakers such as a 5.1-channel surround system so as to obtain a sound effect full of a sense of reality as obtained in a movie theater or a music hall. Multi-channel audio system.
[0003]
FIG. 10 is a schematic explanatory diagram of a conventional multi-channel audio system. FIG. 10A is a three-dimensional view showing a relationship between a speaker arrangement position and a sound field in a multi-channel audio system (hereinafter, referred to as a “surround system”), and FIG. FIG. The surround system shown in FIGS. 10 (a) and 10 (b) is assumed to be configured using a total of four speakers, two on each of the front and rear sides of the user.
[0004]
In this case, speakers 100 and 100 are arranged on both sides of a video display device 110 such as a television receiver, respectively, and the speakers 100 and 100 are arranged on the back side of the viewing position where the user U views. . Thereby, the best sound field is provided to the user U at the viewing position, that is, the best sound effect is given to the user U.
[0005]
[Problems to be solved by the invention]
By the way, it is known that the sound effect by the surround system as described above changes when the installation position of the speaker is moved.
Therefore, when the four speakers 100 are installed, it is desirable that the location where the speakers 100 are installed and the height of the sound emission surface of the speakers 100 be set to an appropriate height.
[0006]
However, in the surround system up to now, although the installation position of the speaker 100 can be arbitrarily changed by the user, the height position cannot be changed. That is, the height position of the speaker 100 was fixed. Most of such speaker devices 100 are designed on the assumption that the user U sits on a sofa or a chair to watch and listen, and the height position of the sound emitting surface is determined by the user U sitting on the chair. The height (length) of the stand 101 is set so as to be the height position of the face.
[0007]
FIG. 11 is a diagram showing a configuration of a conventional speaker device.
In the speaker device 100 shown in FIG. 11, the speaker unit 2 is mounted on the upper portion of the stand 101. In this case, the height (length) of the stand 101 is set so that the height position of the speaker unit 2 is, for example, the height position of the face of the user U sitting on the chair. For this reason, the best sound field is provided when the user U changes the height of the line of sight, for example, by changing the layout of the room, or when the user U sets a sound field that suits his / her preference. Was unable to do so. That is, the conventional speaker 100 as described above has a low degree of freedom in terms of height adjustment.
[0008]
Therefore, the present invention has been made in view of the above points, and it is an object of the present invention to provide a speaker device that allows a user to easily adjust the height according to a use environment and a preference.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a speaker device according to the present invention includes a speaker unit and a stand on which the speaker unit can be attached on an upper surface side and whose height can be adjusted.
[0010]
According to the present invention, the height (length) of the stand on which the speaker unit is mounted can be adjusted, so that the height of the speaker unit can be adjusted to an appropriate height.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described.
FIG. 1 is a diagram showing a configuration of a speaker device according to a first embodiment of the present invention. FIG. 1A is a perspective view showing an overall configuration of the speaker device, and FIG. It is an exploded perspective view.
The speaker device 1 shown in FIG. 1A includes a speaker unit 2, a stand 3, and a base 4.
The speaker unit 2 is a unit part including a speaker, and converts an input audio signal into an audible audio and outputs the audible audio.
[0012]
The stand 3 is provided for installing the speaker unit 2 at a required height position. The speaker unit 2 is attached to an upper surface of the stand 3, and a base 4 is attached to a lower surface thereof. In this case, the body of the speaker unit 2 of the stand 3 has the same thickness.
[0013]
The base 4 is provided to support the columnar portion including the stand 3 and the speaker unit 2 in an upright state.
The base 4 is provided with a connector and the like for connecting a speaker cable for audio signals from an AV device body (not shown). Note that a lid 5 is attached to the upper surface of the speaker unit 2.
[0014]
In the speaker device 1 according to the present embodiment, as shown in FIG. 1B, the stand 3 is formed by, for example, connecting a plurality of joint units 6 in cascade.
In this way, the length (height) of the stand 3 can be adjusted by changing the number of joint units 6 to be used. Therefore, if the speaker unit 2 is mounted on the upper part of the stand 3, the height position of the speaker unit 2 can be adjusted.
For example, as shown in FIG. 2A, the height of the speaker unit 2 can be adjusted to be low by reducing the number of the joint units 6 constituting the stand 3 from three to two.
[0015]
Therefore, when a surround system for AV equipment is constructed using the speaker device 1 of the present embodiment, the speaker device 1 can be arranged in consideration of the height of the user U at the viewing position. That is, it is possible to provide a better sound field for the user U.
[0016]
For example, as shown in FIG. 3A, when an appropriate sound field setting is performed based on the height position of the face of the user U who views the video display device 61 such as a television receiver while sitting on a chair. For example, as shown in FIG. 1A, the number of joint units 6 used for the stand 3 is set to three.
[0017]
In addition, as shown in FIG. 3B, when the appropriate sound field setting is performed based on the height position of the face of the user U who sits on the floor and watches the video display device 62, for example, as shown in FIG. As shown in FIG. 2A, the number of the joint units 6 used for the stand 3 is reduced from three to two or one.
[0018]
Thereby, since the height position of the speaker unit 2 can be adjusted so as to match the height position of the face of the user U, a good sound field can be provided to the user U. In addition, the height adjustment operation can be said to be easy because the joint unit is simply attached / detached.
Therefore, according to the speaker device of the present embodiment, even if the usage mode of the speaker device of the present embodiment is changed, for example, the user U changes the height of the viewing position, the position of the speaker device is changed. If the height of the speaker unit 2 is adjusted in addition to the adjustment, the user U can obtain a sound effect having a sense of unity with the image.
[0019]
Note that, for example, as shown in FIG. 3A, the height of the user U who sits and watches on the floor as shown in FIG. In order to change the height of the speaker unit 2 to a lower position, that is, to adjust the height position of the speaker unit 2 lower, the unnecessary joint unit 6 is attached to the upper part of the speaker unit 2 as shown in FIG. You may do so.
[0020]
With this configuration, it is possible to save the trouble of storing the unneeded joint unit 6 and to make the speaker device 1 visually interesting. In addition, since the internal volume of the speaker device 1 is the same as described later, it is possible to expect an effect that deterioration of the bass characteristics of the speaker device 1 can be prevented.
Alternatively, the joint units 6 detached one by one from the front speaker may be attached to a stand of the rear speaker to raise the position of the rear speaker.
[0021]
In the present embodiment, the number of the joint units 6 constituting the stand 3 has been described as one, two, or three. However, this is merely an example, and the number of the joint units 6 is increased. It goes without saying that the stand 3 may be configured.
[0022]
In addition, as a method of attaching the speaker unit 2 to the stand 3, for example, as shown in FIG. 4, the speaker unit 2 may be rotated 90 ° to be attached vertically to horizontally.
[0023]
Here, the structures of the upper and lower portions of the joint unit 6 and the speaker unit 2 will be described with reference to FIGS.
First, the structure of the upper surface and the lower surface of the joint unit 6 will be described with reference to FIGS.
FIG. 5 is a diagram showing the structure of the upper surface and the lower surface of the joint unit 6.
FIG. 5A is a diagram showing the structure of the upper surface of the joint unit 6 indicated by the arrow A in FIG. 1B. FIG. 1B is a view showing the structure of the lower surface of the joint unit 6 also indicated by an arrow B in FIG. 1B.
[0024]
As shown in FIG. 5A, a coupling mechanism for coupling the upper surface of the joint unit 6 to the speaker unit 2 shown in FIG. 6B or the lower surface of the joint unit 6 shown in FIG. 5B. , A first lock receiving portion 11 and second lock receiving portions 12a and 12b are provided. When the upper surface of the joint unit 6 is attached to, for example, the lower surface of the speaker unit 2, the first lock receiving portion 11 is connected to the first lock portion 21 of the speaker unit 2 shown in FIG. And the second lock receiving portions 12a and 12b are engaged with the second lock portions 22a and 22b of the speaker unit 2. Thus, the speaker unit 2 is connected (fixed) to the upper surface of the joint unit 6.
[0025]
Although not shown, when the connection between the speaker unit 2 and the joint unit 6 is released, for example, the engagement between the first lock portion 21 of the speaker unit 2 and the first lock receiving portion 11 of the joint unit 6 is released. A mechanism is provided for moving the first lock portion 21 in the direction in which the first lock portion 21 moves.
[0026]
At four corners of the upper surface of the joint unit 6, storage portions 13a, 13b, 13c, and 13d are provided. The storage portions 13a to 13d store legs 23a to 23d provided on the lower surface of the speaker unit 2 shown in FIG. 6B.
The joint unit 6 has a hollow shape so that the inside thereof functions as an air chamber, and together with the internal volume of the speaker unit 2, a back air chamber of the speaker cabinet is formed as a whole. For this reason, an opening 14 is provided in the center of the speaker unit 2.
[0027]
A connector 15 is provided on the upper surface of the joint unit 6. At least two of the four terminals of the connector 15 shown in the figure are connected to the terminals of the connector 25 on the lower surface via a speaker cable (not shown) in the joint unit 6. .
[0028]
On the other hand, as shown in FIG. 5B, the lower surface of the joint unit 6 serves as a connection mechanism for connecting the upper surface of the joint unit 6 to the first lock receiving portion 11 of the joint unit 6 described above. 1 lock portion 21 and second lock portions 22a and 22b engaged with the second lock receiving portions 12a and 12b of the joint unit 6 are provided. Further, at the four lower corners of the speaker unit 2, legs 23a, 23b, 23c, and 23d are provided. Also in this case, an opening 24 is provided at the center. The connector 25 is provided on the lower surface of the joint unit 6.
[0029]
Next, the structure of the upper and lower portions of the speaker unit 2 will be described with reference to FIG. The same parts as those in FIG.
FIG. 6A is a diagram showing the structure of the upper surface of the speaker unit 2 indicated by arrow C in FIG. 1B. FIG. 2B is a diagram showing the structure of the lower surface of the speaker unit 2 indicated by an arrow D in FIG. 1B.
[0030]
The upper surface of the speaker unit 2 shown in FIG. 6A has substantially the same configuration as the above-described upper surface of the joint unit 6, and the structure of the joint unit 6 shown in FIG. The only difference is that the connector 15 is not provided.
The reason why the upper surface of the speaker unit 2 is configured in the same manner as the joint unit 6 in this manner is to take into consideration the connection of the joint unit 6 to the upper surface of the speaker unit 2 as described above. The upper surface of the unit 2 does not necessarily have to have a configuration as shown in FIG. 5A, and it is sufficient that at least the lid 5 can be attached.
[0031]
The lower surface of the speaker unit 2 shown in FIG. 6B has substantially the same configuration as the lower surface of the joint unit 6 described above. At the time of use, a cable connecting portion 26 for connecting a speaker cable (not shown) from the AV device is provided.
[0032]
Therefore, when the stand 3 is formed by connecting a plurality of joint units 6 in tandem while connecting the upper surface and the lower surface of the joint unit 6 as in the present embodiment, the connector 25 on the lower surface of the stand 3 is formed. And the connector 15 on the upper surface of the stand 3 can be electrically connected. That is, the speaker cables in the plurality of joint units 6 constituting the stand 3 can be electrically connected.
[0033]
Therefore, if the speaker unit 2 is connected to the upper surface of the stand 3 using the connection mechanism as in the present embodiment, the speaker unit 2 can be attached to the stand 3 and the connector 25 of the speaker unit 2 and the stand The signal connector 15 can electrically connect the speaker unit 2 and the stand 3.
[0034]
Although not shown, if the same configuration as the above-described upper surface portion of the joint unit 6 is provided substantially at the center of the base 4, the joint unit 6 can be connected to the base 4 and the base 4 can be connected to the base 4. The provided connector (not shown) and the stand 3 can be electrically connected.
In this way, if the signal supply to the speaker of the speaker unit 2 is performed using the speaker cable provided in the stand 3, the speaker cable connected to the speaker can be formed so as not to be seen from the outside. The appearance is not spoiled.
[0035]
Next, a configuration of a speaker device according to a second embodiment will be described with reference to FIG.
In the speaker device 31 shown in FIGS. 7A and 7B, a stand 32 to which the speaker unit 2 is attached is formed to be expandable and contractible.
[0036]
As shown, the stand 32 in this case has a first stand 32a and a second stand which is smaller than the inner diameter of the first stand 32a and has at least a columnar outer shape that can be inserted into the first stand 32a. It is formed by the stand 32b. Thereby, the stand 32 is configured such that the second stand 32b is slidably combined with the first stand 32a.
[0037]
Therefore, the stand 32 when the second stand portion 32b is stored inside the first stand portion 32a can be shown as in FIG. 7A. The stand 32 when the second stand 32b is slid out of the first stand 32a can be shown as in FIG. 7B.
[0038]
That is, in the stand 32 having such a configuration, the length of the stand 32 can be adjusted by adjusting the withdrawal amount (sliding movement amount) of the second stand portion 32b from the first stand portion 32a. Therefore, even when the speaker unit 2 is mounted on the upper part of the stand 32, the height position of the speaker unit 2 can be adjusted. In this case, also in this case, the configuration of the upper surface and the lower surface of the stand 32 can be realized by the configuration as shown in FIGS.
[0039]
Here, the structure of the stand shown in FIG. 7 will be described with reference to the cross-sectional view shown in FIG.
As shown in FIG. 8, a signal rail 36 is formed on the inner surface of the first stand 32a, and a signal rail 34 is formed on the inner surface of the second stand 32b. The signal rails 34, 36 are electrically connected, for example, via a contact 35 formed on the lower end side of the second stand 32b.
[0040]
In this way, even when the length of pulling out the second stand 32b from the first stand 32a is changed, it is possible to electrically connect the first stand 32a and the second stand 32b. . The method of electrically connecting the first stand portion 32a and the second stand portion 32b is merely an example. For example, the upper surface and the lower surface of the stand 32 can be connected by a speaker cable.
[0041]
The first stand 32a and the second stand 32b can be fixed with screws 33, for example, as shown. In addition, various fixing mechanisms for the first stand 32a and the second stand 32b are conceivable.
[0042]
Further, in the speaker device 31 shown in FIG. 8, the case where the stand 32 has a two-stage structure of the first stand portion 32a and the second stand portion 32b has been described as an example, but the speaker device 31 may have a multi-stage structure. Is also possible.
[0043]
FIG. 9 shows a configuration example of such a speaker device.
The speaker device 41 shown in FIG. 9 has a stand 42 provided with a first stand 42a and a second stand 42b which is slightly smaller than the first stand 42a and can be stored inside the first stand 42a. Have been. A third stand 42c, which is slightly smaller than the second stand 42b and can be stored inside the second stand 42b, is provided. That is, the case where the stand 42 in this case has a three-stage configuration is shown.
[0044]
When the stand 42 of the speaker device 41 is configured as described above and the speaker unit 2 is mounted on the upper portion of the stand 42, the height position of the speaker unit 2 can be easily adjusted.
[0045]
【The invention's effect】
As can be understood from the above description, the speaker device of the present invention includes a speaker unit and a stand to which the speaker unit can be attached. The height of the stand to which the speaker unit is attached is adjustable. Thereby, the height position of the speaker unit can be adjusted to an appropriate height, so that a speaker device having a high degree of freedom regarding the height position can be realized.
[0046]
Therefore, if an AV device is configured using such a speaker device of the present invention, the height of the speaker device can be adjusted when, for example, changing the layout of a room or setting a sound field to suit the user's preference. By doing so, it is possible to provide a sound field that is always good.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a speaker device according to a first embodiment of the present invention.
FIG. 2 is a diagram illustrating an example of a usage pattern of the speaker device according to the first embodiment;
FIG. 3 is a diagram illustrating a sound field that can be set by the speaker device according to the first embodiment.
FIG. 4 is a diagram showing another example of mounting the speaker unit.
FIG. 5 is a diagram showing a configuration of an upper surface portion and a lower surface portion of the joint unit.
FIG. 6 is a diagram illustrating a configuration of an upper surface portion and a lower surface portion of the speaker unit.
FIG. 7 is a diagram illustrating a configuration of a speaker device according to a second embodiment.
FIG. 8 is a cross-sectional view illustrating a structure of a speaker device according to a second embodiment.
FIG. 9 is a modification of the speaker device according to the second embodiment.
FIG. 10 is an explanatory diagram of a conventional multi-channel audio system.
FIG. 11 is a diagram showing a structure of a conventional speaker device.
[Explanation of symbols]
1 31 41 speaker device, 2 speaker unit, 3 stand, 4 base, 5 lid, 6 joint unit, 11 first lock receiving portion 12 second lock receiving portion, 13 storage portion, 14 24 opening portion, 15 25 connector, 21 1st lock section, 22 2nd lock section, 23 legs, 26 cable connection section, 32 42 stand, 33 screw, 34 36 signal rail, 35 contacts, 61 62 video display device

Claims (4)

A speaker unit,
A speaker device comprising: a stand on which the speaker unit can be attached on an upper surface side; and a height-adjustable stand. The above stand,
The speaker device according to claim 1, further comprising a joint unit that can be connected to each other in a height direction. The above stand,
At least a first stand and a second stand are provided, and the second stand is slidably combined with the first stand. The speaker device according to claim 1. The speaker device according to claim 1, wherein the speaker device is provided as at least one speaker among speakers used in an audio system.

Images