JP4513693B2 - Sound playback device - Google Patents

Description

  The present invention is a small-sized sound reproducing apparatus in which a sound reproducing apparatus main body such as a portable sound reproducing apparatus is attached to a speaker apparatus having a speaker unit, and the reproduced music of the sound reproducing apparatus main body can be listened to by the speaker apparatus. It is about.

  In order to listen to a recording medium such as a cassette tape or MD (mini disk) on which sound information such as music is recorded by a portable sound reproducing device, this type of portable sound reproducing device usually does not include a speaker. Or, since a small speaker is provided, an earphone or a headphone is usually connected for listening.

  Further, as a method of connecting a speaker to this type of portable sound reproducing apparatus and listening to music from the speaker, there is a method as shown in Patent Document 1, but here, a conventional example of Patent Document 1 is described. (FIG. 11) and invention of patent document 1 itself are demonstrated.

  In the conventional example of FIG. 11 (FIG. 11), a speaker device 60 is connected to a portable sound reproducing device 90 for listening, and the speaker device 60 includes a left speaker unit in which a left speaker 61 is built. 62, a right speaker unit 64 in which a right speaker 63 is built, an AC adapter 65 connected to a household AC power source 80, and the like. In addition, one speaker unit, for example, the left speaker unit 62 includes an amplifier circuit (not shown) for amplifying the input acoustic signal and a battery housing, and a connection cord 66 for inputting the acoustic signal. A speaker connection cable 67 to the right speaker box 64, and a power input terminal 68 connected to a power supply terminal 65a provided at the tip of the power supply cord 65b of the AC adapter 65; A power switch 69 is provided. In addition, 92 is an information recording medium such as a cassette tape or MD mounted on the portable sound reproducing device 90, and 80 is an AC power source.

  When using the speaker device 60, the power supply terminal 65 a from the AC adapter 65 is connected to the power input terminal portion 68 of the speaker device 60 with the left and right speaker units 62, 64 arranged at appropriate positions. (Or, a battery is put in the battery storage section of the speaker unit 62), and the speaker connection output terminal 67a provided at the tip of the speaker connection cable 67 is connected to the speaker connection input terminal 64a of the right speaker unit 64. Further, an acoustic signal input terminal 66a provided at the tip of the connection cord 66 for inputting the acoustic signal is inserted into an acoustic signal output terminal 91 provided in the portable acoustic reproduction device 90, and the power switch of the speaker device 60 is connected. It can be used by turning 69 to the ON state and operating the portable sound reproducing device 90 to be in the reproducing state.

  In Patent Document 1, the sound player main body 2 is configured to be attachable to a connecting portion 30 that connects the left and right speaker units 23 and 24 in the speaker device 3, and the sound reproducing device main body is connected to the connecting portion 30. A guide rib 34 that engages with an engaged recess provided in 2 to regulate the mounting position of the sound player main body 2 and a magnet that is attracted to the rechargeable battery 11 built in the sound player main body 2 when mounted. So that the sound reproducing device main body 2 is attracted to the connecting portion 30 by the magnet portion at the time of mounting, and the sound signal output terminal of the sound reproducing device main body 2 is in direct contact with the sound signal input terminal of the speaker device. What has been configured is disclosed.

Then, by mounting the sound player main body 2 on the connecting portion 30 of the speaker device 3 and using it, the reproduction signal of the sound player main body 2 can be output from the left and right speaker units 23 and 24 and listened to.
JP 2004-118955 A

  However, in the conventional example of Patent Document 1, the left and right speaker units 62 and 64 are arranged, and the connection cord 66 for inputting the acoustic signal and the connection cord 67 for connecting the speaker must be connected. When the AC adapter 65 is used, the power supply cord 65b of the AC adapter 65 must be connected to the left speaker unit 62 with the AC adapter 65 connected to the AC power source 80 (instead of the AC power source 80). When the battery is used, the battery must be put in the battery housing portion of the speaker unit 62), and there is a problem that much time and effort are required. Further, when the left and right speaker units 62 and 64 are disposed, the connection cord 66 for inputting the acoustic signal and the connection cord 67 for connecting the speaker may be entangled with each other, and the AC adapter 65 is used. In some cases, the power supply cord 65b may also get involved. In addition to the portable sound reproducing device 90, there is a problem that a power source (such as an AC power source or a battery) that supplies power to the speaker device 60 is required.

  Moreover, in the thing of patent document 1, from the front direction shown in FIG. 1, the control and sound signal input / output terminal 17 (FIG. 1) of the sound player main body 2 which inputs the operation signal for operating the said sound player main body 2 remotely. 4 (a)) cannot be directly connected to the connection terminal 4c of the remote control unit 4 or the input terminal 7a of the earphone connection cord 7, and as shown in FIG. The opening / closing window 40 is opened and the control / acoustic signal input / output terminal 17 is directly exposed to the outside, so that it has to be performed on the back side. That is, the connection terminal 4c of the remote control unit 4 is once disconnected from the sound player main body 2, the sound player main body 2 is attached to the speaker device 3, and then the rear opening / closing window 40 is opened to control and input / output sound signals. There is a problem that it takes time to expose the terminal 17 and then to insert the connection terminal 4c of the remote control unit 4 again.

  The present invention solves the above-mentioned problems, and can be easily set so that it can be output from a speaker without much effort and time. In addition, a connection cord for inputting an acoustic signal and a connection cord for connecting a speaker are provided. It is an object of the present invention to provide a small-sized sound reproducing apparatus that does not get entangled with each other, does not require a power supply for a speaker device, and has good operability.

  In order to solve the above-mentioned problems, an audio reproduction device according to the present invention is an audio reproduction device including an audio reproduction device main body and a speaker device section in which the audio reproduction device main body is configured to be detachable. The main body has sound reproducing means, and is provided with a main body side acoustic signal output terminal for outputting the reproduced sound signal. The speaker device section includes a main body mounting section for mounting the sound reproducing apparatus main body, and the main body mounting Left and right speaker units that can be opened and closed via a connecting part at both ends of the part, and a notch formed in the connecting part corresponding to the connecting plug mounting part when the sound reproducing apparatus main body is mounted can be opened and closed freely And a sound signal input terminal connectable to the sound signal output terminal on the main body side when the sound reproducing device main body is mounted, and the left and right speaker units are When the sound reproduction device main body is not attached, the sound reproduction device main body can be closed so as to overlap the main body attachment portion, and in the open state, the sound reproduction device main body can be attached to the main body attachment portion by opening left and right respectively, and the connecting portion When the left and right speaker units are in the open state with the cover provided in the open state, the connection plug is disposed in the cutout portion with the connection plug attached to the connection plug attachment portion of the sound reproduction apparatus main body. The reproducing apparatus main body is configured to be mountable on the main body mounting portion.

  According to the present invention, with the above configuration, in the opening operation of the left and right speaker units, the speaker units are separated from each other left and right by rotating at the connecting portion, and the sound reproducing device main body is mounted in the space generated at this time The sound reproducing device main body can be mounted even when the connection plug is inserted into the sound reproducing device main body when the cover of the notch formed in the connecting portion is open. Further, in the closing operation of the left and right speaker units, the left and right speaker units can be brought into close contact with each other by rotating at the connecting portion, so that much trouble and The sound reproducing device main body can be easily set so that sound can be produced from the speaker without taking time. This makes it easy to grasp the operation of the device and its state, and if the cover is closed when the connection plug is not attached to the main body of the sound reproduction device or the speaker unit is closed, the notch can be hidden and the design is impaired. It will not be.

  Further, in the sound reproducing device according to claim 2, the connection plug mounting unit is a jack for inputting an operation signal for remotely operating the sound reproducing device main body, and the connection plug performs remote operation. The remote control unit that outputs the operation signal is connected, and the sound reproduction device main body can be remotely controlled and operated while the sound reproduction device main body is attached to the speaker device unit. Has an effect.

  Further, the sound reproducing device according to claim 3 is configured such that the opening / closing operation of the cover can be performed only when the speaker unit connected to at least the connecting portion on the side where the cover is provided is closed. The cover can be opened and closed only in correspondence with the opening and closing of one speaker unit.

  As described above, according to the present invention, the main body mounting portion of the speaker device having the speaker unit that can be opened / closed and rotated via the connecting portion can output the sound from the speaker without much effort and time. The sound reproduction device main body can be easily set with the speaker unit opened, and the cutout portion cover formed in the connection portion of the speaker unit is in the open state with the connecting plug attached to the sound reproduction device main body. In addition, the sound reproducing device main body can be directly mounted on the speaker device. This makes it easy to grasp the operation of the device and its state, and if the cover is closed when the connection plug is not attached to the main body of the sound reproduction device or the speaker unit is closed, the notch can be hidden and the design is impaired. It is possible to provide a sound reproducing apparatus that does not.

  Hereinafter, the best mode for carrying out the sound reproducing apparatus of the present invention will be described with reference to the drawings.

  As shown in the figure, a small-sized sound reproducing device 1 according to an embodiment of the present invention includes a portable small-sized sound reproducing device main body 2, a speaker device 3 that is configured to detachably attach the sound reproducing device main body 2, And a remote control unit 4 for controlling the reproduction operation of the sound reproduction apparatus main body 2. A plug 7 connected with a headphone connection cord having a headphone (not shown) at the tip is connected to the remote control unit 4. ing. The sound of the reproduction signal of the sound reproducing apparatus main body 2 can be emitted by a speaker provided in the speaker device 3 while being attached to the speaker device 3. In addition, the sound reproducing device main body 2 can be listened to the sound of the reproduction signal through headphones at the tip thereof by connecting the plug 7 to the remote control unit 4 in a single state separated from the speaker device 3. .

  The sound reproducing device main body 2 is mounted on the speaker device 3 and can be mounted with a mini-disc (MD) 8 as a recording medium through an insertion opening formed on the upper surface portion 2a which is the upper surface in the figure. The sound reproduction means for making it possible to reproduce the sound signal recorded in the MD8 is built in, and the speaker itself is not provided. In addition, the rechargeable battery 11 can be stored inside the sound reproducing device main body 2 by opening and closing the battery lid 21. In addition, a sound reproduction device side power source / acoustic signal input / output terminal 22 is provided on the back surface portion 2b serving as a mounting surface to the speaker device 3, and a jack-type operation / acoustic signal input / output terminal 23 is provided on the right side surface portion 2c. Is provided. Further, concave portions 24 and 25 for positioning when the sound reproducing device main body 2 is attached to the speaker device 3 are provided on the back surface portion 2b and the bottom surface portion 2d of the sound reproducing device main body 2. Reference numeral 26 denotes an operation control operation unit on the front surface portion 2a of the sound reproducing device main body 2. Reference numeral 27 denotes an opening / closing lever that opens the lid of the sound reproducing device main body 2 so that the recording medium can be attached and detached. It is.

  Next, as shown in FIG. 3, the speaker device 3 has a box-like shape in which a main body mounting portion 30 for mounting the sound reproducing device main body 2 and speakers 31 and 32 for generating sound are provided on both the left and right sides thereof. Left and right speaker units 33 and 34 and connecting portions 36 and 37 that connect the left and right speaker units 33 and 34 at both end portions of the main body mounting portion 30 in a state where the left and right speaker units 33 and 34 can be opened and closed. Here, the left and right speaker units 33 and 34 are pivoted around the connecting portions 36 and 37 as shown in FIG. 4 from the open state shown in FIG. 3 when the sound reproducing device main body 2 is not attached. It is possible to make it a closed state so that it may overlap with the mounting part 30.

  The main body mounting portion 30 of the speaker device 3 is provided with a speaker device side power source / acoustic signal input / output terminal 35 at a position corresponding to the power source / acoustic signal input / output terminal 22 on the acoustic playback device main body 2 side. Protruding portions 38 and 39 for fitting are provided at positions corresponding to the concave portions 24 and 25 for positioning of the apparatus main body 2. In addition, an amplifier circuit 30a (see a circuit diagram to be described later) for amplifying an acoustic signal input from the acoustic reproduction apparatus main body 2 side via a power source / acoustic signal input / output terminal 35 is provided inside the main body mounting portion 30 of the speaker device 3. And a circuit board including a charging circuit 30b (see a circuit diagram to be described later) for charging the rechargeable battery 11 housed in the sound reproducing device main body 2 is incorporated. Further, a magnet 30c is provided for holding the sound reproducing device main body 2 in a mounted state.

  A jack-type operation / acoustic signal input / output terminal 23 provided on the right side surface portion 2c of the sound reproducing apparatus main body 2 has a remote control section for controlling the reproducing operation of the sound reproducing apparatus main body 2, as shown in FIGS. 4 is connected to a connection plug 4b provided via a cord 4a. Further, the remote control unit 4 has an operation unit 4a and a display unit 4b and can be operated, and an acoustic for connecting a plug 7 to which a headphone connection cord having a headphone (not shown) at the tip is connected. A jack 4e is provided as a signal output terminal. Therefore, the operation / acoustic signal input / output terminal 23 functions as an operation signal terminal for inputting / outputting an operation signal including an operation signal for performing a remote operation of the sound reproduction apparatus main body 2, and a main body side sound for outputting an acoustic signal. It functions as a signal output terminal.

  In one connecting portion 37 of the speaker device 3, a notch portion 10 is formed in a portion facing the operation / acoustic signal input / output terminal 23 provided in the sound reproducing device main body 2, and an outer shape is formed so as to cover the notch portion 10. The cover 9 is provided in the same manner as the connecting portion 37. As shown in FIGS. 4 and 5, the cover 9 is pivotally fixed to the end of the main body mounting portion 30 of the speaker device 3 at a fulcrum 9a, from the closed state shown in FIG. 4 (a). (B) It can be opened as shown in the figure. Here, the opening and closing of the cover 9 can be performed with the left and right speaker units 33 and 34 closed, and at least the speaker unit 34 connected to the connecting portion 37 formed with the notch 10 is always closed. It is necessary to keep.

  Then, as shown in FIG. 5, by opening the cover 9 of the notch 10, with the connection plug 4 b attached to the operation / acoustic signal input / output terminal 23 provided in the sound reproducing device main body 2, The sound reproducing device main body 2 can be mounted on the main body mounting portion 30 of the speaker device 3 with the mounting portion of the connection plug 4 b corresponding to the notch portion 10.

  FIG. 6 is a diagram showing the open / closed state of the left and right speaker units 33, 34 from above. FIG. 6A shows the left speaker unit 33 after closing the right speaker unit 34 in the open state as shown in FIG. (B) can be closed so as to overlap with the main body mounting portion 30 side as shown in (b), and in this state, (c) the cover 9 of the notch 10 is opened as shown in FIG. Can do.

  As shown in FIG. 7, a power jack 41 is provided on the back of the main body mounting portion 30 of the speaker device 3 and is connected to a power source household AC power source 5 to supply power to the sound reproducing device main body 2 and the speaker device 3. A plug 6 a connected via a cord 6 b is connected to the AC adapter 6 that can be supplied, and the DC power converted by the AC adapter 6 is supplied to the speaker device 3.

  Further, as shown in the block diagram of FIG. 8, in a state where the sound reproduction device main body 2 is mounted on the speaker device 3, the circuit of the sound reproduction device main body 2 and the speaker are connected by electrically connecting the opposing terminals. The amplifier circuit 30a and the charging circuit 30b built in the main body mounting portion 30 of the device 3 are connected to reproduce the music signal of the sound reproducing device main body 2 by the speaker device 3, and supply power from the speaker device 3 to the sound reproducing device main body 2. Thus, the rechargeable battery 11 can be charged.

  When the sound reproducing device main body 2 is used alone, the operation unit of the sound reproducing device main body 2 is stored in the state in which the rechargeable battery 11 is stored and the headphones are attached or the headphones are attached via the remote control unit 4. 26 and the operation unit 4c of the remote control unit 4 can be used to listen to music reproduced by the sound reproducing apparatus main body 2 with headphones.

  Further, when the sound reproducing device main body 2 is mounted between the main body mounting portions 30 of the left and right speaker units 33 and 34, the concave portions 24 and 25 provided on the sound reproducing device main body 2 side and the speaker device 3 side are provided. The position is determined by the convex portions 38 and 39 and can be fixed by the magnetic force of the magnet 30c provided in the main body mounting portion 30 on the speaker device 3 side.

  Then, the left and right speaker units 33 and 34 are separated from each other by the main body mounting portion 30 so that the sound reproducing device main body 2 can be mounted between the left and right speaker units 33 and 34, and the speaker units 33 and 34 It is comprised so that it may become the attitude | position of the closed state in which 34 rotated toward the center and was accommodated.

  Further, at the time of charging, as shown in FIG. 7, with the power supply terminal plug 6a connected to the power input terminal jack 41, the sound reproduction device main body 2 is mounted, and the sound reproduction device side power supply / acoustic signal input / output is installed. By electrically connecting the terminal 22 and the speaker device side power source / acoustic signal input / output terminal 35, the rechargeable battery 11 built in the sound reproducing device main body 2 can be charged.

  Further, as shown in FIG. 7, a foldable stand 42 is pivotally supported at the upper end so that the small sound reproducing device 1 can be erected on the back surface of the main body mounting portion 30.

  In such a configuration, when the speaker device 3 is used, the left and right speaker units 33, 34 are connected to the connecting portions 36, 37 so that the left and right speaker units 33, 34 of the speaker device 3 are in the mounting posture. The position is determined by the concave portions 24 and 25 provided on the side of the sound reproducing device main body 2 and the convex portions 38 and 39 provided on the speaker device 3 side, and fixed by the magnetic force of the magnet 30c provided on the speaker device 3 side. Then, the power source / acoustic signal input / output terminal 22 on the sound reproducing apparatus main body 2 side and the power source / acoustic signal input / output terminal 35 on the speaker apparatus side are electrically connected.

  FIGS. 9 to 11 show this wearing state, and in this state, by operating the operation unit 26 of the sound reproducing device main body 2 to instruct reproduction, music and the like reproduced by the sound reproducing device main body 2 are Are emitted from the speaker units 33 and 34.

  Here, FIGS. 9 and 10 are examples in which the remote control unit 4 is not connected to the sound reproducing device main body 2, and at this time the cover 9 is in a state in which the notch 10 is closed, and this cover 9 is connected An outer shape substantially the same as that of the portion 37 will appear.

  FIG. 11 is an example in which the remote control unit 4 is connected to the sound reproduction apparatus main body 2 and is used by being attached to the speaker apparatus 3. By opening the cover 9 in advance, the sound reproduction apparatus main body 2 is shown. Even when the connection plug 4b of the remote control unit 4 is mounted on the side surface of the main body, only the sound reproducing device main body 2 is mounted from the front side of the main body mounting unit 30, and as shown in FIG. The connection plug 4b is accommodated in the cutout portion 10 formed in the above and can be mounted.

  In this state, it is possible to confirm the number of the music (number of tracks), the mode, and the performance time during the music while viewing the display unit 4d of the remote control unit 4. It is also possible to listen to music from the speakers 31 and 32 of the speaker device 3 by operating the operation unit 4c. The operation can also be performed on the operation unit 26 of the sound reproducing apparatus main body 2.

  Further, if the rechargeable battery 11 is housed in the sound reproducing device main body 2, it is possible to supply the power from the rechargeable battery 11 to the sound reproducing device main body 2 and the speaker device 3, and further, the AC By connecting the power supply cord 6 b of the AC adapter 6 connected to the power source 5, it is also possible to drive the sound reproduction device main body 2 and the speaker device 3 with the power converted from the home AC power source 5.

  As described above, according to the sound reproducing device of the present invention, a sound reproducing device body that can be used as it is, such as a portable sound reproducing device, is attached to a speaker device having a speaker unit, and the reproduced music of the sound reproducing device body is reproduced. The present invention is advantageous when applied to a small-sized sound reproducing device that can be heard by the speaker device.

The perspective view of the state which isolate | separated the speaker apparatus and sound reproduction apparatus main body of the sound reproduction apparatus concerning embodiment of this invention (A) The figure is a front perspective view of the main body of the sound reproducing apparatus, and (b) is the rear perspective view of the same. The perspective view of the state which opened the speaker unit of the speaker apparatus It is the perspective view of the state which closed the speaker unit of the speaker apparatus, (a) A figure is a perspective view of the state which closed the cover of a notch part, (b) A perspective view of the state which opened the same cover Sectional view showing the cover open / closed state It is a top view which shows the opening-and-closing state of the speaker unit in the speaker apparatus of the sound reproduction apparatus, (a) The figure is a top view of the state which opened the speaker unit, (b) The figure is a top view of the closed state, (c) The figure is a top view of the notch cover with the cover closed Rear perspective view showing a state in which the sound reproducing device main body of the sound reproducing device is mounted on the speaker device Block diagram of the sound reproducing device Rear perspective view showing a state in which the main body of the sound reproducing device is mounted on the speaker device The top view which shows the state which mounted | wore the speaker apparatus with the sound reproducing device main body The perspective view which shows the state which mounted | wore the speaker apparatus with this sound reproducing apparatus main body in the state which mounted | wore the side surface of the same sound reproducing apparatus main body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sound reproduction apparatus 2 Sound reproduction apparatus main body 2a Upper surface part of sound reproduction apparatus main body 2b Back surface part of sound reproduction apparatus main body 2c Side surface part which arrange | positioned plug type operation and sound signal input / output terminal of sound reproduction apparatus main body 2d Sound reproduction apparatus main body Bottom part 3 Speaker device 4 Remote control part 7 Headphone connection cord 8 MD (mini disc)
DESCRIPTION OF SYMBOLS 9 Cover 9a Rotation fulcrum of a cover 10 Notch part 11 Rechargeable battery 22 Power supply / acoustic signal input / output terminal on the sound reproducing device 23 Jack type operation / acoustic signal input / output terminal 24, 25 Recessed part provided on the sound reproducing device main body side 26 Operation 30 Amplifying circuit 30 b Charging circuit 30 c Magnet 31 Left speaker 32 Right speaker 33 Left speaker unit 34 Right speaker unit 35 Speaker device side power supply / acoustic signal input / output terminal 36 Left connecting portion 37 Right connecting portion 38, 39 Speaker Concave provided on the device side

Claims (3)

A sound reproducing device including a sound reproducing device main body and a speaker device unit configured to be detachable from the sound reproducing device main body,
The sound reproduction apparatus main body has sound reproduction means and a main body side sound signal output terminal for outputting the reproduced sound signal,
The speaker device section includes a main body mounting section for mounting the sound reproducing apparatus main body, left and right speaker units that are connected to each other at both ends of the main body mounting section via a connecting section so as to be capable of opening and closing, and the sound reproducing apparatus main body. A cover that allows opening and closing of a notch formed in the connecting portion of the connection plug mounting portion corresponding portion when mounted, and an acoustic signal input terminal that can be connected to the body-side acoustic signal output terminal when the sound reproducing device body is mounted And
The left and right speaker units can be closed so as to overlap the main body mounting portion when the sound reproducing device main body is not mounted, and in the opened state, the left and right speaker units are opened to the left and right, respectively, and the main body mounting portion is mounted with the sound reproducing device main body. When the left and right speaker units are open with the cover provided on the connecting portion open, the connection plug is connected with the connection plug attached to the connection plug attachment portion of the sound reproduction apparatus main body. A sound reproducing device, wherein the sound reproducing device main body is configured to be mounted on the main body mounting portion by being disposed in the cutout portion. The connection plug mounting unit is a jack for inputting an operation signal for remotely operating the sound reproduction apparatus main body, and the connection plug is connected to a remote control unit for outputting an operation signal for performing remote operation. The type sound reproducing apparatus according to claim 1, wherein the type sound reproducing apparatus is provided. 2. The type sound reproducing apparatus according to claim 1, wherein the opening / closing operation of the cover can be performed only when the speaker unit connected to at least the connecting portion on the side where the cover is provided is closed.

Images