JP2005027117A - Speaker device for display stand - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speaker device for a display stand which can reproduce high tone quality stereo voice and to which a thin display panel can be attached. <P>SOLUTION: The speaker device for a display stand comprises a pair of longitudinal stands 11 having a built-in speaker 15 respectively, fixing clamps 18 and 19 provided at each of the pair of stands 11 for attaching and fixing both of the side surfaces of a display panel 21, and a built-in sound route 22 for reproducing and outputting low-pitched sound zone of output sound from each speaker 15 in the pair of stands 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a speaker device for a display stand that holds and fixes a display panel such as a plasma display panel or a liquid crystal display panel using a stand with a built-in speaker.
[0002]
[Prior art]
In recent years, plasma display panels (hereinafter referred to as PDPs), liquid crystal display panels, and the like have been developed and put into practical use in order to reproduce and display images on a large screen. The PDP and the liquid crystal display panel can realize a large screen and a thin thickness, which are difficult to realize with a conventional cathode ray tube.
[0003]
When this PDP or liquid crystal display panel is used as a television receiver, for example, a dedicated display stand is required to support the display due to an increase in the screen size.
[0004]
An example of such a dedicated display stand is described in Patent Document 1. The display stand described in Patent Document 1 has a rear leg having casters, a front leg having casters connected so as to be able to approach or separate from the rear legs, and a base for mounting and fixing the display panel. Provided with a rear leg and a fixed part supported by the front leg so as to be slidable up and down, and when adjusting the height of the display panel attached and fixed to the pedestal, The height position is adjusted by sliding up and down between the rear leg and the front leg and adjusting the longitudinal length by moving the rear leg and the front leg closer to or away from each other. I can do it.
[0005]
Further, since the display panel can be enlarged and thinned, the peripheral portion of the display panel is relatively simplified. For example, the television signal reception processing unit is provided inside the display panel, and the speakers are arranged on the back side of the display panel and in the frames on the left and right sides of the display panel.
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 2003-61010
[Problems to be solved by the invention]
Conventionally, in order to install a display panel, a dedicated display stand as proposed in Patent Document 1 has been used. This dedicated display stand has a relatively heavy weight because the display panel is relatively heavy. Depending on the height position, the front leg and the rear leg are moved closer to or away from each other to prevent the body from falling. Therefore, there is a problem that the installation space cannot be reduced even if the display stand itself is large and the depth of the display panel is thin.
[0008]
In addition, the video that is reproduced and displayed due to the large screen of the display panel becomes a powerful video, and it is desired to reproduce a powerful sound with respect to the powerful video. However, if a speaker is provided on the back side of the display panel, or if the speaker is built in the display panel, high-quality sound cannot be reproduced. Therefore, in order to reproduce high sound quality and powerful sound, it is necessary to take measures such as installing separately sold high sound quality speakers on the left and right of the display panel.
[0009]
On the other hand, the separately sold high sound quality speakers need to be accurately placed on the left and right sides of the display panel. If the installation position is incorrect or the installation position is shifted, the sound output from the left and right speakers will not be heard. There was a problem that the stereo effect was halved without being accurately transmitted to the viewer.
[0010]
Furthermore, in the separately sold speaker box for high sound quality, the sound may be deteriorated by the sound output from the speaker, causing the box to vibrate back and forth. For this reason, when installing an optional speaker box, it was necessary to install it firmly so as not to cause displacement or vibration of the installation position.
[0011]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a speaker device for a display stand that can be attached to a display panel and can perform stereo reproduction with high sound quality.
[0012]
[Means for Solving the Problems]
A speaker device for a display stand according to the present invention comprises a pair of vertically long stands with built-in speakers, and attachment fixing means provided on the pair of stands, respectively, for attaching and fixing both side surfaces of the display panel. And
[0013]
In addition, the display stand speaker device of the present invention includes a pair of vertically long stands with built-in speakers, attachment fixing means for attaching and fixing both side surfaces of the display panel, and the pair of stands. And a connector for connecting comrades.
[0014]
According to the speaker device for the display stand of the present invention, it is possible to provide the speaker device for the display stand that can stably attach and hold the display panel and can reproduce a sound with high sound quality and good stereo feeling.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2 show a first embodiment of a speaker device for a display stand according to the present invention. FIG. 1 is a perspective view showing the overall configuration, and FIG. 2 is a cross-sectional view showing the internal configuration of the speaker device. .
[0016]
As shown in FIG. 1, the display stand speaker device of the present invention includes a pair of stands 11 a and 11 b for attaching and fixing the left and right side surfaces of the display panel 21.
[0017]
The pair of stands 11a and 11b are provided on substantially spherical head portions 12a and 12b, cylindrical support portions 13a and 13b suspended from the head portions 12a and 12b, and lower ends of the support portions 13a and 13b, respectively. Leg portions 14a and 14b.
[0018]
Speakers 15a and 15b are built in the heads 12a and 12b, and an opening for outputting sound from the speakers 15a and 15b is provided on the front side.
[0019]
The spaces in the head portions 12a and 12b communicate with the leg portions 14a and 14b through the internal spaces of the cylindrical column portions 13a and 13b.
[0020]
The leg portions 14a and 14b are formed to have an outer diameter slightly larger than the outer diameter of the column portions 13a and 13b, and sound emitting holes 16a and 16b are formed at lower ends of the leg portions 14a and 14b. Has been. The leg portions 14a and 14b are fixed to pedestals 17a and 17b made of rectangular flat plates, respectively.
[0021]
On the side surfaces of the heads 12a and 12b of the pair of stands 11a and 11b, upper fixtures 18a and 18b for attaching and fixing upper portions on both side surfaces of the display panel 21 are provided. Further, lower fixtures 19a and 19b for attaching and fixing lower portions of both side surfaces of the display panel 21 are provided on the outer circumferences of the support columns 13a and 13b. The lower fixtures 19a and 19b are slidable up and down along the support pillars 13a and 13b and can be fixed at a desired position.
[0022]
Further, connecting rods 20a and 20b for holding and fixing the pedestals 17a and 17b are provided between the pedestals 17a and 17b of the stands 11a and 11b. The connecting rods 20a and 20b have a length. Can be adjusted.
[0023]
Next, a method of attaching the display panel 21 to the stands 11a and 11b having such a configuration will be described. First, the stands 11a and 11b are set apart from each other in accordance with the lateral dimension of the display panel 21, and the upper fixtures 18a and 18b provided on the heads 12a and 12b of the stands 11a and 11b are used to mount the display panel 21. Mount and fix the upper part of both sides. Further, the lower fixtures 19a and 19b provided on the support columns 13a and 13b are fixed by sliding adjustment according to the vertical dimension of the display panel 21, and the display panels are fixed by the lower fixtures 19a and 19b. The lower part of both side surfaces of 11 is attached and fixed. Thereby, the display panel 21 can be attached between the stands 11a and 11b. Further, after fixing, the lengths of the connecting rods 20a and 20b are adjusted and fixed between the bases 17a and 17b.
[0024]
Accordingly, the display panels 21 having different sizes can be attached and fixed to the pair of stands 11a and 11b, and the display panel 21 can be stably attached and fixed against vibrations and pressing forces in the front and rear, right and left directions. be able to.
[0025]
Next, the internal configuration of the pair of stands 11a and 11b will be described with reference to FIG. The pair of stands 11a and 11b are symmetrically structured, and will be described as the stand 11.
[0026]
The head 11 of the stand 11 has a spherical space. A speaker opening 15x is provided in front of the head 12, and the speaker 15 is attached and fixed to the inner side of the speaker opening 15x.
[0027]
The space inside the head portion 12 is drilled on the lower end side of the leg portion 14 through the inner space of the cylindrical column portion 13 and the inner space of the leg portion 14 provided at the lower end of the column 13. The sound emitting hole 16 communicated with each other. A space communicating with the head portion 12, the column portion 13, and the leg portion 14 forms a sound path 22.
[0028]
The sound path 22 guides the sound output from the rear side of the speaker 15, and the mid-high range is reduced while the sound propagates through the sound path 22, so that the sound in the low range is transmitted from the sound output hole 16. It is output.
[0029]
The sound emission holes 16 formed in the leg portion 14 communicating with the sound path 22 are openings provided at predetermined angular intervals in at least a front side semi-cylindrical portion of the leg portion 14. That is, the sound output from the front of the speaker 15 is output to the viewer located in front of the display panel 21 and output from the rear of the speaker 15 as indicated by a dotted arrow X in the figure. As shown by the dotted arrow Y in the figure, the sound is output from the sound emission hole 16 to the viewer side via the sound path 22.
[0030]
The sound output from the front of the speaker 15 is mainly in the middle and high range, and the sound output from the rear of the speaker 15 is attenuated in the middle and high range by the sound path 22 and the low range component is emitted. Output from the hole 16. Therefore, the viewer can listen to a sound having a wide sound range from a middle to high sound range to a low sound range.
[0031]
As described above, the stands 11a and 11b of the present invention are speaker devices that can realize the mounting of the display panel 21 and the reproduction of a wide sound range sound.
[0032]
Further, although the pair of stands 11a and 11b are vertically long, the display panel 21 is relatively heavy, so that the entire speaker device becomes heavy, and the stands 11a and 11b are output by the sound output from the speakers 15a and 15b. Can be prevented from vibrating, and a sound with good sound quality can be reproduced. That is, a high-quality sound can be output using the weight of the display panel.
[0033]
In addition, the height position of the display panel 21 can be changed according to the viewer's desire by making the support columns 13a and 13b extendable and fixable at a desired position.
[0034]
Next, a second embodiment of the speaker device for the display stand according to the present invention will be described with reference to FIGS. 3 is a perspective view showing the overall configuration, and FIG. 4 is a cross-sectional view showing the internal configuration of the speaker device.
[0035]
As shown in FIG. 3, the second embodiment of the present invention includes a pair of stands 31 a and 31 b for attaching and fixing the left and right side surfaces of the display panel 21.
[0036]
The pair of stands 31a and 31b are respectively provided with vertically long and substantially rectangular column portions 32a and 32b and lower ends of the column portions 32a and 32b. It consists of 33b.
[0037]
Inside the front surfaces of the support columns 32a and 32b, for example, high-frequency speakers 34a and 34b, mid-range speakers 35a and 35b, and low-frequency speakers 36a and 36b are built-in, respectively. An opening for outputting sound from the speakers 34a, 34b, 35a, 35b, 36a, 36b is provided.
[0038]
The internal spaces of the support columns 32a and 32b communicate with the internal spaces of the legs 33a and 33b. Inside the legs 33a and 33b, a sound path 43 to be described later is provided, and sound emission holes 38a and 38b are formed in the lower front part. Further, pedestals 37a and 37b are attached and fixed to the bottom surfaces of the leg portions 33a and 33b.
[0039]
Fixing tools (not shown) capable of mounting and fixing both side surfaces of the display panel 21 are provided on the side surfaces of the pair of column portions 32a and 32b facing each other. The longitudinal lengths of the pair of support columns 32 a and 32 b are formed substantially the same in accordance with at least the longitudinal dimension of the display panel 21.
[0040]
The leg portions 33a and 33b provided at the lower ends of the column portions 32a and 32b are formed to have a larger width and depth than the column portions 32a and 32b, and the outer side surfaces of the leg portions 33a and 33b are formed on the columns. It is formed so as to be flush with the outer surfaces of the portions 32a and 32b. The left and right lower ends of the display panel 21 are placed on the upper surfaces of the legs 33a and 33b.
[0041]
In addition, a connecting rod 39 is provided to connect the pedestals 37a and 37b to each other. The connecting rod 39 maintains the distance between the stands 31a and 31b after the display panel 21 is attached and fixed to the stands 31a and 31b. The length of the connecting rod 39 is adjustable, although not shown.
[0042]
A method of attaching the display panel 21 to the stands 31a and 31b having such a configuration will be described. First, the stands 31a and 31b are juxtaposed according to the horizontal dimension of the display panel 21, and the left and right lower ends of the display panel 21 are placed on the upper surfaces of the legs 33a and 33b of the stands 31a and 31b. Next, in order to attach and fix both side surfaces of the display panel 21 with fixtures provided on the opposite side surfaces of the support columns 32a and 32b, and to maintain the distance between the stands 31a and 31b, the connecting rod Adjust the length of 39. Thereby, the display panel 21 can be attached to a pair of stands 31a and 31b.
[0043]
Next, the internal configuration of the pair of stands 31a and 31b will be described with reference to FIG. The pair of stands 31a and 31b are symmetrically structured, and will be described as the stand 31.
[0044]
As described above, the column portion 32 of the stand 31 has a vertically long outer shape and a rectangular space inside. Openings for emitting sound from the plurality of speakers 34, 35, 36 are provided on the front surface of the support column 32, and the plurality of speakers 34, 35, 36 are attached and fixed inside the openings.
[0045]
The internal space of the column portion 32 communicates with the internal space of the leg portion 33, and the sound path 43 is formed in the leg portion 33 by the first sound path wall 41 and the second sound path wall 42. Has been. The first sound path wall 41 is suspended from the upper surface of the leg portion 33, and the second sound path wall 42 is planted from the bottom surface of the leg portion 33. That is, the internal space of the leg 33 is partly divided by the first and second sound path walls 41 and 42 to form a sound path 43 that is a sound propagation path. The sound path 43 communicates with a sound emission hole 38 provided in front of the leg portion 33.
[0046]
Similar to the first embodiment, the sound path 43 guides the sound output from the rear of the speakers 34 to 36, and the middle / high range is generated while the sound propagates through the sound path 43. The sound of the low frequency range is reduced and output from the sound emission hole 38.
[0047]
That is, the sound output from the front of the speakers 34 to 36 is output as indicated by a dotted arrow X in the figure, and the sound output from the rear of the speakers 34 to 36 is indicated by a dotted arrow Y in the figure. As described above, the mid-high range is attenuated by the internal space of the support column 32 and the sound path 43, and the low range is output from the sound emission hole 38.
[0048]
Further, the pair of stands 31a and 31b can attach a large and heavy display panel 21 to make the entire speaker device heavier, prevent the stands 31a and 31b from vibrating, and have good sound quality. Sound can be played.
[0049]
In addition, the height position of the display panel 21 can be adjusted by allowing the column portions 32a and 32b to be inserted into and removed from the internal space of the leg portion 33, for example.
[0050]
Furthermore, the distance of the sound path 43 can be adjusted according to the installation position and the number of installation of the sound path walls 41 and 42, and the reproduction effect of the low sound range can also be adjusted.
[0051]
Next, application examples of the speaker device for the display stand of the present invention will be described with reference to FIGS. 5 to 6 are perspective views showing the overall configuration, and the same parts as those in FIGS. 1 to 4 are denoted by the same reference numerals and detailed description thereof is omitted.
[0052]
FIG. 5 is an application example of the embodiment of FIG. 1, and column fixing portions 23a and 23b that are slidably mounted and fixed to the column portions 13a and 13b of the stands 11a and 11b, and these column fixing portions 23a and 23b. The gantry 24 is integrally provided so as to connect the two.
[0053]
The gantry 24 holds and fixes the lower surface of the display panel 21, and a center speaker 25 is built in the central portion of the gantry 24.
[0054]
By incorporating the center speaker 25 in the central portion of the gantry 24 as described above, the center speaker 25 can be accurately placed in the central portion.
[0055]
The gantry 24 may be formed in a substantially rectangular shape, and a signal processing circuit such as a tuner or a video / audio signal processing circuit may be incorporated therein.
[0056]
FIG. 6 is an application example of the embodiment of FIG. 3. A rectangular connection housing 50 is provided between the legs 33 a and 33 b of the pair of stands 31 a and 31 b. A super woofer speaker 51 for low frequency is built-in. It is possible to incorporate a signal processing circuit such as a tuner or a video / audio signal processing circuit in the connection housing 50. According to this example, the weight of the super woofer 51 makes it difficult for the stands 31a and 31b to fall over, further increasing the weight of the speaker device, preventing the stands 31a and 31b from vibrating, and providing good sound quality. Sound can be played.
[0057]
Further, by arranging the shelf plate 52 on the upper side of the connection housing 50, for example, various electronic devices such as a video device and an amplifier device can be placed.
[0058]
Thus, by making it possible to install the center speaker 25 and the super woofer speaker 51, it can be used as a center speaker for multi-channel stereo broadcasting, for example, 5.1 channel stereo broadcasting.
[0059]
Various other application examples are also conceivable. For example, instead of the gantry 24 of FIG. 5, in order to firmly connect the column portions 13a and 13b of the stands 11a and 11b, they may be mechanically coupled using a steel material or the like. Thereby, it can prevent that two speaker apparatuses each vibrate separately.
[0060]
In addition, the speakers 15a and 15b can be fixed at a predetermined angle toward the viewer, thereby realizing more accurate stereo reproduction. Further, by attaching the speakers 15a and 15b at the same height as the center of the display panel 21, the center of the image can coincide with the center of the sound image, and more effective sound reproduction is possible.
[0061]
Furthermore, in order to avoid the sound generated from the speaker device from hitting the surface of the display panel 21 and being reflected, a transparent sound insulation panel is attached between the speaker device and the display panel 21 or when only sound is desired to be heard from the speaker device. In order to prevent the generated sound from hitting and reflecting on the surface of the display panel 21, a sound absorbing material may be placed on the surface of the display panel 21 when the display panel 21 is not used.
[0062]
As described above, the speaker device for the display stand of the present invention can mount and fix the display panel, and guides the low frequency sound output from the rear of the speaker in the pair of stands. By providing a sound path for reproduction and output, it is possible to reproduce sound in a wide sound range, to prevent the vibration of the stand using the weight of the display panel, and to provide a speaker device with excellent stereo effect.
[0063]
【The invention's effect】
The speaker device for the display stand of the present invention can attach and fix the display panel at a desired height position, and can set the speaker at an accurate position. Further, by utilizing the weight of the display panel, it is possible to increase the weight of the entire speaker device, thereby suppressing unnecessary vibrations and reproducing high quality sound.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an overall configuration of a first embodiment of a speaker device for a display stand according to the present invention.
FIG. 2 is a cross-sectional view showing an internal configuration of the first embodiment of the speaker device for the display stand according to the present invention.
FIG. 3 is a perspective view showing an overall configuration of a second embodiment of a speaker device for a display stand according to the present invention.
FIG. 4 is a cross-sectional view showing an internal configuration of a speaker device for a display stand according to a second embodiment of the present invention.
FIG. 5 is a perspective view showing the overall configuration of an application example of the first embodiment of the speaker device for the display stand of the present invention.
FIG. 6 is a perspective view showing the overall configuration of an application example of the second embodiment of the speaker device for the display stand of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Stand, 12 ... Head part, 13 ... Support | pillar part, 14 ... Leg part, 15 ... Speaker, 16 ... Sound emission hole, 17 ... Base, 18 ... Upper fixing tool, 19 ... Lower fixing tool, 21 ... Display panel.

Claims (6)

A pair of vertically long stands with built-in speakers,
Mounting and fixing means provided on each of the pair of stands and mounting and fixing both side surfaces of the display panel;
A speaker device for a display stand, comprising: The pair of stands has a sound path that reproduces and outputs low-frequency sound from the rear of the speaker, and the stand is provided with an opening that emits sound that passes through the sound path. The display stand speaker device according to claim 1. 3. The display stand speaker device according to claim 1, wherein each of the pair of stands includes a plurality of speakers having a plurality of sound range characteristics. 4. A display stand according to claim 1, wherein a center speaker is mounted and disposed at a lower center portion of the display panel fixed and fixed between the pair of stands by the mounting and fixing means. Speaker device. 5. The display stand speaker device according to claim 1, wherein the pair of stands is configured such that a height of an attachment position of the display panel can be adjusted. A pair of vertically long stands with built-in speakers,
Mounting and fixing means provided on each of the pair of stands and mounting and fixing both side surfaces of the display panel;
A speaker device for a display stand, comprising: a connector for connecting the pair of stands.

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