JP6195781B2 - Sound equipment - Google Patents

Description

  The present invention relates to an acoustic device, and more particularly to an acoustic device that can be installed on a ceiling surface in combination with a lighting fixture.

In recent years, due to the diversification of lifestyles, an increasing number of people live in such a way that they do not place items such as appliances in their homes. For this reason, there is a constant need to place objects as little as possible in the room or to make them less noticeable.
Regarding music appreciation and the like, there is a method of installing an audio set in an inconspicuous form as much as possible, such as embedding a speaker in a wall or ceiling, instead of installing the audio set in a conspicuous form. However, in order to install a speaker or the like in an embedded type, it is necessary to consider the embedding from the time of building the building, and it is difficult to retrofit the existing building.

  There is also a method of saving installation space by fixing a speaker or the like to a ceiling or a wall. For example, in a store or the like, a plurality of speakers are often fixed to a ceiling, a wall, or the like using speaker mounting brackets in consideration of space saving and preventing customers from coming into contact with each other. However, in this case as well, it is necessary to add a wiring for connecting to the speaker, which is troublesome and may damage the aesthetic appearance. In addition, an audio signal can be transmitted to the speaker by radio or the like, but power is required to reproduce the signal, and connection is actually required.

In order to solve this problem, a device that reproduces an audio signal by obtaining power via a power line for a lighting fixture has been announced. As an example of such a device, there is one that enables installation on a ceiling surface while supplying power by installing a lighting apparatus and an acoustic device in the same row.
For example, Patent Document 1 discloses a speaker arrangement system that arranges speakers on an indoor ceiling without causing the ceiling to be messy due to exposure of cables. This system has a lighting duct installed on the ceiling or wall of a room in a house, to which a lighting device can be attached, and an infrared receiver that receives a wirelessly transmitted audio signal. A speaker device that outputs the sound indicated by the audio signal received by the infrared receiver upon receiving power supply via the digital audio player that generates the audio signal, and the audio signal generated by the digital audio player And an infrared transmitter that wirelessly transmits the signal to the receiver.

Japanese Patent No. 5168632

According to the configuration in which the lighting apparatus and the audio device are installed in the same row as described above, the audio device can be installed on the ceiling surface, and an inconspicuous installation is possible. However, the speaker is still exposed on the ceiling surface, which may give the impression that the lighting fixture has failed and is not lit. Moreover, although the above-mentioned audio equipment can be installed at the place where the lighting duct is installed, construction is necessary to newly install the lighting duct, which is not easy.
Although a configuration in which a ceiling light attached to a ceiling surface and an audio device are integrated may be considered, if a lighting fixture is designed so that the speaker is not actually conspicuous, the speaker cannot always be installed at an acoustically favorable position. Directing the speaker directly to the listener creates a shadow in the illumination, which is difficult, and thus the speaker must be installed in the shadow of the illumination. At this time, the sound with high frequency has high straightness, and if there is an obstacle on the axis of the speaker, the high-pitched sound will be attenuated and heard by the listener in the axial direction. It becomes difficult to reproduce sound.

In order to avoid the influence of the lighting device, there is a method in which the arm of the acoustic device is extended outside the outer periphery of the lighting device, and the speaker is installed toward the listener outside the outer periphery of the lighting device. In this case, since the axis of the speaker can be directed to the listener, sound can be reproduced with excellent frequency characteristics.
However, lighting fixtures equipped with such speakers are designed only for exclusive use, but the ones that are preferred for the user are not necessarily released, and it is necessary to replace the lighting fixtures. turn into.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide an acoustic device that can be installed on a ceiling surface in combination with a lighting fixture and can transmit sound to a listener with excellent frequency characteristics. .

  In order to solve the above problems, a first technical means of the present invention includes a body part, a plurality of movable parts provided to be displaceable with respect to the body part, a speaker attached to the movable part, An audio signal processing unit that outputs an audio signal from the speaker, and further comprising: a lighting fixture mounting portion for mounting a lighting fixture on a lower side of the acoustic device, wherein the movable portion includes the body The position of the speaker can be set according to the shape of the luminaire attached to the acoustic device by being displaced in the horizontal direction with respect to the portion.

  The second technical means is characterized in that, in the first technical means, the movable part is provided so as to be displaceable in a direction in which the movable part is moved away from the body part.

  According to a third technical means, in the first or second technical means, the plurality of movable parts are interlocked so as to have a symmetric shape with the centroid position as a symmetric point so that the centroid position of the acoustic device does not change. It is characterized by displacement.

  A fourth technical means is any one of the first to third technical means, an operation input unit that enables an operation input to the acoustic device, and a drive unit that drives and displaces the movable unit. A control unit that controls the drive unit, and the control unit drives the drive unit based on a state of the acoustic device that changes according to an operation input to the operation input unit, and changes the position of the speaker. It is characterized by doing.

  ADVANTAGE OF THE INVENTION According to this invention, the acoustic apparatus which can be installed in a ceiling surface in combination with a lighting fixture and can transmit a sound to a listener with the outstanding frequency characteristic can be provided.

It is a figure which shows the external appearance of Embodiment 1 of the audio equipment by this invention. It is a figure explaining the internal structure of the audio equipment of FIG. It is a figure which shows the function structural example of the principal part of the audio equipment concerning this invention. It is a figure which shows the structural example which further attached the lighting fixture with respect to the audio equipment attached to the ceiling. It is a figure which shows the other example of the structural example which further attached the lighting fixture with respect to the audio equipment attached to the ceiling. It is a figure which shows the function structural example by Embodiment 2 of the audio equipment by this invention. It is a figure which shows the external appearance of Embodiment 3 of the audio equipment by this invention.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an acoustic device according to the present invention will be specifically described with reference to the accompanying drawings. Note that in all the drawings for describing the embodiments, the same reference numerals are given to portions having the same functions, and repeated description thereof is omitted.
1A and 1B are views showing an external appearance of a sound device according to a first embodiment of the present invention. FIG. 1A is a side view of the sound device, and FIG. 1B is a bottom view of the sound device. 2 is a diagram for explaining the internal configuration of the acoustic device of FIG. 1, FIG. 2 (A) is a diagram showing the internal configuration of the acoustic device viewed from the side, and FIG. 2 (B) is the acoustic device from below. It is a figure which shows an internal structure when it sees.

The acoustic device 1 includes a body unit 10, two speaker units 20, and a rosette adapter 30.
The two speaker units 20 are attached to the body unit 10. Each of these two speaker units 20 includes a speaker unit housing 21, a speaker unit 22, and a rack arm 23. Each speaker unit 20 is slidably held inside the body unit 10 and is displaced by expanding and contracting in the horizontal direction with respect to the body unit 10. The speaker unit 20 corresponds to the movable unit of the present invention, and is provided so as to be displaceable with respect to the body unit 10 as described above, and the speaker unit 22 according to the shape of the lighting fixture attached to the acoustic device 1. The position of can be set. The speaker unit 22 corresponds to the speaker of the present invention.

The body unit 10 includes a body unit housing 11, a receptacle 12 for attaching a lighting fixture below the body unit 10, a substrate 13, and a gear 14. The receptacle 12 corresponds to the lighting fixture mounting portion of the present invention.
Inside the body part 10, a gear 14 is pivotally supported at the center position of a circular body part housing 11 in a rotatable manner. Then, the rack arms 23 of the two speaker units 20 engage with the gear 14, and the rack arms 23 move in parallel with each other as the gear 14 rotates.

As a result, the two speaker units 20 expand and contract symmetrically in the radial direction with respect to the body unit housing 11 around the rotational axis position of the gear 14. The direction of displacement due to the expansion and contraction is a direction in which the speaker unit 22 is moved away from or closer to the body unit housing 11.
Here, the two speaker units 20 are displaced in association with each other so as to have a point-symmetric shape with the center of gravity position of the acoustic device 1 as a symmetric point, so that the speaker unit 20 is expanded and contracted without changing the center of gravity position of the acoustic device 1. be able to. Therefore, when the acoustic device 1 is attached to the receptacle 41 installed on the ceiling 40, the shape of the speaker unit 20 can be changed in a balanced state, which is safe.

  Moreover, the speaker unit 20 can position the speaker unit 22 outside the lighting fixture attached to the receptacle 12 (outside the lighting fixture when the acoustic device and the lighting fixture are viewed in plan). Since it is possible to create a state in which there is no obstruction on the 22 speaker axes, it is possible to reproduce sound with excellent frequency characteristics.

  FIG. 3 is a diagram illustrating a functional configuration example of a main part of the acoustic device according to the present invention. The acoustic device 1 includes an input unit 101, an audio signal processing unit 102, a control unit 104, a power supply unit 105, a remote control light receiving unit 106, a speaker unit 22, and the like. The functions of the input unit 101, the audio signal processing unit 102, the control unit 104, the power supply unit 105, and the like are realized by a processor or the like mounted on the substrate 13 of the body unit 10.

  An audio signal is input to the input unit 101 from the outside. The audio signal to be input may be input from an external device connected by wire, or may be one that reproduces a recording medium by the audio device 1 and inputs the audio signal. Moreover, it is good also as a structure which receives the audio | voice signal transmitted by radio | wireless communication, or the input part 101 of the audio equipment 1 is equipped with the network connection mechanism, and can acquire an audio | voice signal from the content hold | maintained at the server etc. on a network. You may do it. In this case, it may be configured to connect to a network via a power line for power supply. In the following, it is assumed that the input unit 101 inputs an audio signal by wireless communication.

  The audio signal processing unit 102 performs audio signal processing for outputting the audio signal input to the input unit 101 from the speaker unit 22. The audio signal processing unit 102 includes an amplification unit 103, which amplifies the audio signal input from the input unit 101 and outputs the signal to the speaker unit 22. Further, the amplification unit 103 may be configured such that the amplification factor can be varied. The variable range is preferably variable from infinite attenuation (silent state), and more preferably the sound quality can be changed.

  The control unit 104 controls each unit of the device such as the input unit 101, the audio signal processing unit 102, and the power supply unit 105 in order to control the acoustic device 1. The control unit 104 has a register that holds a set value of each unit, and transmits the contents of the register to each unit when the sound device 1 is activated or when the setting is changed, and reflects the set value in each unit. In addition, the remote control light receiving unit 106 receives a remote control signal transmitted from the remote control 107 that is an operation input unit attached to the acoustic device 1 and transmits the received remote control signal to the control unit 104. The control unit 104 changes the setting of each unit by changing the setting value of the register according to the signal from the remote controller. The remote control 107 and the remote control light receiving unit 106 correspond to the operation input unit of the present invention.

The power supply unit 105 supplies power to each unit of the audio device 1. Further, the power supply unit 105 is provided with a power supply unit that supplies power to be supplied to the luminaire 2 that is used in combination with the acoustic device 1, and the power supply unit 105 of the acoustic device 1 controls the illumination power supply of the luminaire. May be.
More specifically, the power supply unit 105 performs energization / shutdown control of the power supplied to the lighting fixture 2 attached to the receptacle 12, or has a short-time power shutoff function for switching operation of the light emission mode. May be. Some lighting fixtures 2 have a function of switching a light emission mode by a power-off operation in a short time of about 1 second, for example, a function of sequentially selecting a light emission mode such as bright lighting, dark lighting, and nightlight. Assuming such a lighting fixture, the light emission mode of the lighting fixture can be changed by performing power-off control for about one second with respect to the lighting fixture 2 on the acoustic device 1 side.

FIG.4 and FIG.5 is a figure which respectively shows the structural example which further attached the lighting fixture with respect to the audio equipment attached to the ceiling. The configurations shown in FIGS. 4 and 5 are different in the shape of the lighting fixture 2, but both can attach the lighting fixture 2 to the acoustic device 1 with the same configuration and mounting procedure.
When installing the acoustic device 1 between the lighting fixture 2 and the ceiling 40, first, the user installs the acoustic device 1 at a target position. Here, for example, the user attaches the rosette adapter 30 (see FIGS. 1 to 2) of the audio device 1 to the receptacle 41 installed on the ceiling 40 of the room. The rosette adapter 30 can be fixed to the receptacle by engaging with the receptacle and rotating about 30 °.
Then, the user attaches the body portion 10 to the attached rosette adapter 30. The torso part 10 can be attached by fitting the torso part 10 into the claws provided in the rosette adapter 30. Thereby, the acoustic device 1 can be attached to the ceiling 40 of the room.

  In addition, suppose that the nail | claw provided in the rosette adapter 30 can be cancelled | released so that the trunk | drum 10 can be removed. The body portion 10 may be divided so that the rosette adapter 30 can be operated, or the claws provided on the rosette adapter 30 can be pushed from the outside of the body portion 10. .

  After attaching the acoustic device 1 to the receptacle 41 on the ceiling 40 of the room in the above procedure, the user attaches the lighting fixture 2 to the lower part of the acoustic device 1. Although the method of attachment varies depending on the lighting fixture 2, the rosette adapter of the lighting fixture 2 is attached to the receptacle 12 (see FIGS. 1 to 2) of the sound device 1 and the lighting fixture is attached to the rosette adapter in substantially the same procedure as described above. The lighting fixture 2 can be attached by fitting. Through these operations, the acoustic device 1 and the lighting fixture 2 can be attached to the ceiling 40 as shown in FIGS. In other words, the acoustic device 1 can be interposed between the ceiling 40 and the lighting fixture 2.

In this state, the user pulls out the speaker unit 20 from the body unit housing 11 and sets the speaker unit 22 built in the speaker unit 20 to be located outside the outer periphery of the lighting fixture 2. Thereby, the positional relationship which the lighting fixture 2 used as a shielding object does not interpose between the listener who exists under the lighting fixture 2, and the speaker unit 22 is realizable.
When the installation of the lighting fixture 2 is completed, the user can perform audio reproduction using the acoustic device 1. For example, the user can operate a wireless transmitter that holds a sound source to transmit an audio signal from the wireless transmitter to the acoustic device 1 for reproduction output.

  Specifically, for example, the user operates a remote controller attached to the audio device 1 and a portable music player as a wireless transmitter holding a sound source, and is built into the audio device 1 and the portable music player. Execute the wireless connection function and set the connection establishment mode. Then, the audio device 1 and the portable music player are mutually authenticated to establish a communication connection so that the audio device 1 can receive the audio signal transmitted from the portable music player.

Next, the user operates the portable music player to cause the audio device 1 to transmit an audio signal. More specifically, the user operates the portable music player, adjusts the volume, reproduces the sound source file, and wirelessly transmits an audio signal from the portable music player to the acoustic device 1.
In the acoustic device 1, the wireless connection module configuring the input unit 101 receives the audio signal and transmits it to the amplification unit 103. The amplifying unit 103 adjusts the volume and sound quality of the received audio signal and amplifies the audio signal with a preset amplification factor. The amplified audio signal is reproduced and output by the speaker unit 22.

The amplification unit 103 adjusts the volume and sound quality of the audio signal, but the user can change the adjustment value of the volume and sound quality using the remote controller 107. Here, the user can adjust the volume with the portable music player on the transmission side, but can also adjust the volume with the acoustic device 1 on the reception side using the remote controller 107.
When the user is not adjusting the volume, the initial setting value is applied, and the volume setting value is such that the audio device 1 is played at the maximum volume when the volume setting of the portable music player is maximized.

Also, the sound quality setting may be changed according to user preference. The sound quality setting can be selected from treble enhancement, bass enhancement, treble attenuation, bass attenuation, passage, and the like, but it is better that the speaker characteristics are corrected even in the passage setting.
When the user operates the remote control, the remote control light receiving unit of the audio device 1 receives the remote control signal and transmits it to the control unit 104. The control unit 104 decodes the remote control signal and changes the setting value held in the control unit 104 to change the operation of the acoustic device 1.

  Through these series of operations, the user can play back the sound signal of the sound source file recorded in the portable music player with the sound device 1. As a result, the speaker unit 22 can be installed inconspicuously even if a lighting fixture having a different external shape is attached, and the sound from the speaker unit 22 directly reaches the listener's ear, thereby reproducing high-quality sound. An audio device that can be realized can be realized.

  FIG. 6 is a diagram illustrating a functional configuration example according to the second embodiment of the acoustic device according to the invention. In the present embodiment, in addition to the configuration of the first embodiment, a driving unit 108 for driving and displacing the speaker unit 20 is provided. For example, a motor is built in the acoustic device 1 as the drive unit 108, and the speaker unit 20 is driven to expand and contract by the power of the motor. The driving operation of the driving unit 108 can be arbitrarily set by the user using the remote controller 107.

In this case, the control unit 104 can drive the speaker unit 20 and change the position of the speaker unit 22 based on the state of the acoustic device 1 that changes according to the operation input from the remote controller 107.
For example, when the acoustic device 1 is not used, the speaker unit 22 can be brought close to the body unit 10 to hide the speaker unit 22 behind the lighting fixture 2. At this time, the control unit 104 controls the driving unit 108 so as to displace the speaker unit 20 in the direction of the body unit 10 according to the stop operation of the audio device 1 by the remote controller 107, and the audio reproduction of the audio device 1 by the remote controller 107. When the operation for starting the operation is performed, the drive unit 108 is controlled to extend the speaker unit 20 outward from the body unit 10.

  The length when the speaker unit 20 extends may be set to the maximum length that the speaker unit 20 can extend, but the state when the speaker unit 22 is located outside the lighting fixture is stored in advance. The control unit 104 may perform control so as to extend the speaker unit 20 in accordance with the position information. The state when the speaker unit 22 is located outside the luminaire may be determined by providing a position sensor in the speaker unit 20 and detecting the result, or in order to extend the speaker unit 20 for a predetermined length, A stepping motor may be used.

7A and 7B are views showing an external appearance of a sound device according to a third embodiment of the present invention. FIG. 7A is a side external view of the audio device, and FIG. 7B is a bottom external view of the audio device. The acoustic device 1 according to the present embodiment is configured by configuring a swinging speaker unit in place of the configuration of the telescopic speaker unit according to the first and second embodiments.
As shown in FIG. 7, the acoustic device 1 of the present embodiment includes a body unit 10, two speaker units 20, and a rosette adapter 30. The body unit 10 includes a body unit housing 11, a receptacle 12 for attaching a lighting fixture below the body unit 10, and a substrate 13.

  The two speaker units 20 are attached to the body unit 10. Each of these two speaker units 20 includes a speaker unit housing 21 and a speaker unit 22. Each speaker unit 20 is pivotally supported so as to swing in the direction of arrow M with respect to the body unit 10.

  Accordingly, the two speaker units 20 can be swung between a position approaching the body unit 10 and a position moving away from the body unit 10, and the speaker unit 22 can be positioned at an arbitrary position. At this time, since the two speaker units 20 are configured to swing symmetrically (point-symmetric) in conjunction with each other, the speaker unit 20 is swung without changing the position of the center of gravity of the sound device 1. Can be made. Therefore, when the acoustic device 1 is attached to the receptacle installed on the ceiling, the shape of the speaker unit 20 can be changed in a balanced state, which is safe.

The speaker unit 20 can be positioned outside the luminaire attached to the receptacle 12 (outside the luminaire when the unit of the acoustic device and the luminaire is viewed in plan), and on the axis of the speaker unit 22 Therefore, it is possible to create a state in which there is no shielding object, so that high-quality sound reproduction is possible.
In the configuration of the present embodiment, the driving unit 108 shown in FIG. 6 can be provided, and the speaker unit 22 can be driven by the control unit 104. At this time, the drive unit 108 can be controlled so as to displace the speaker unit 20 in accordance with a stop operation or start operation of the audio device 1 by the remote controller 107.

  In each of the embodiments described above, two speaker units 22 are attached to the acoustic device 1, but three or more speaker units 22 may be attached. Also in this case, it is preferable that the speaker unit that performs the expansion / contraction operation or the swinging operation with respect to the body part 10 operates in a point-symmetric manner with the center of the body part 10 as a symmetry point. Thereby, since the center of gravity of the acoustic device 1 does not change even if the position of the speaker unit 20 changes, it can be safely attached and installed.

Moreover, in each embodiment, you may give the control function of the lighting fixture 2 attached to the audio equipment 1 to the remote control 107 attached to the audio equipment 1. FIG. For example, when a user operates an illumination on / off button provided on the remote controller 107, a remote control signal is transmitted from the remote controller 107, and the control unit 104 supplies power to the lighting fixture 2 or stops supplying power. Control.
In addition, when the user operates an illumination dimming button provided on the remote controller 107, the control unit 104 performs dimming of the lighting fixture 2 by cutting off the power supplied to the lighting fixture 2 for about 1 second. Further, if an illuminance sensor is attached to the tip of the speaker unit 20 so that the brightness of the lighting fixture 2 can be detected, more reliable light control can be performed. In addition, it is possible to control such that the sound device 1 has a built-in timer so that the illumination is dimmed when a certain time comes, and then switched to a night light and turned off.

  The technical features (configuration requirements) described in each of the above embodiments can be combined with each other, and a new technical feature can be formed by combining them.

DESCRIPTION OF SYMBOLS 1 ... Sound apparatus, 2 ... Lighting fixture, 10 ... Body part, 11 ... Body part housing | casing, 12 ... Receptacle, 12 ... Speaker, 13 ... Board | substrate, 14 ... Gear, 20 ... Speaker part, 21 ... Speaker part housing | casing, DESCRIPTION OF SYMBOLS 22 ... Speaker unit, 23 ... Rack arm, 30 ... Rosette adapter, 40 ... Ceiling, 41 ... Receptacle, 101 ... Input part, 102 ... Audio signal processing part, 103 ... Amplification part, 104 ... Control part, 105 ... Power supply part, 106: Remote control light receiving unit, 107: Remote control, 108: Drive unit.

Claims (4)

An acoustic system comprising: a body part; a plurality of movable parts provided to be displaceable with respect to the body part; a speaker attached to the movable part; and an audio signal processing unit for outputting an audio signal from the speaker. A device,
A lighting fixture mounting portion for mounting a lighting fixture on the lower side of the body portion is provided, and the movable portion is displaced in a horizontal direction with respect to the body portion, thereby the shape of the lighting fixture attached to the acoustic device. A sound device characterized in that the position of the speaker can be set according to.   The acoustic device according to claim 1, wherein the movable portion is provided so as to be displaceable in a direction in which the movable portion is closer to a direction away from the speaker.   3. The sound according to claim 1, wherein the plurality of movable parts are displaced in association with each other so as to have a symmetric shape with respect to the center of gravity position so that the center of gravity position of the acoustic device does not change. apparatus. An operation input unit that enables operation input to the acoustic device, a drive unit that drives and displaces the movable unit, and a control unit that controls the drive unit,
The said control part drives the said drive part based on the state of the said audio apparatus which changes according to the operation input with respect to the said operation input part, The position of the said speaker is changed, The one of Claims 1-3 characterized by the above-mentioned. The acoustic device according to 1.

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