JP2001339785A - Audio apparatus with timer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To establish a control measure against dust and sound collection in an arrangement of a big loudspeaker. SOLUTION: An operation part 20 and a display part 16 to select an operating mode of an audio apparatus at a front part 12a of an apparatus body 12 shaped like a box. At a side of a top view part 12f, a loudspeaker 30 is arranged and also a retractable cover 32 is arranged to close the loudspeaker 30. At the apparatus body 12, a detecting element 48 to make on-off action responding to an opening and closing of the cover 32, so that an opening status of the cover 32 is controlled, based on an output from a timer placed at the apparatus body 12. An open space of the top part of the apparatus body 12 is enough large so as to install a large-diameter loudspeaker in it. The cover 32 is also used for dust prevention and for an acoustic reflecting board for the loudspeaker 30. The cover 32 is also useful for a control button for a timer mode.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio device with a timer having a speaker. More specifically, an opening / closing lid that covers the speaker is provided as an operation unit for interrupting an alarm, as well as for dust prevention when a speaker is arranged on the upper surface of the audio device main body. When the speaker is used, this opening / closing lid can be used as an acoustic reflector.

[0002]

2. Description of the Related Art In recent years, in addition to the original functions of a radio receiving circuit section, an acoustic section (speaker) and the like in a box-shaped main body, a single housing equipped with a timer function for realizing an alarm mode has been developed. Smaller acoustic devices have been developed.

[0003] As shown in FIG. 11, an external appearance of an acoustic device with a timer of this type is a box-like body 12 having a substantially cubic shape.
Is configured, an operation unit 20 including a plurality of operation keys (operation buttons) for realizing various operation modes is arranged on the front surface 12a, and the operation mode is displayed.
In general, a display unit 16 for displaying a reception frequency and, in some cases, a frequency display unit 14 having a slide indicator for displaying the reception frequency in an analog manner are provided.

In addition to the above, a pair of speakers 30, 30 are disposed on both left and right sides of the front portion 12a. On the left and right side parts 12b and 12c of the main body 12, for example, a left side part 12b is provided with a switch 24 for switching a reception band, a switch 22 for turning on / off a radio mode and setting / resetting an alarm mode, and the like. A knob for tuning, a knob for volume adjustment (both not shown), and the like are arranged on the right side portion 12c, and the timer-equipped audio device 10 is configured.

[0005]

By the way, when the acoustic device 10 is configured as shown in FIG. 11, since the operation unit 20, the display unit 16 and the like are originally installed in a narrow space of the arrangement space,
The speakers 30, 30 attached to the front part 12a are, for example, small and donut-shaped as shown in the figure. This does not ensure sufficient sound quality. To incorporate a speaker of a certain size (large-diameter speaker),
There is no other way but to sacrifice the size of the operation unit 20 and the display unit 16 or to install the operation unit 20 and the display unit 16 in a place other than the front part 12a.

Since the apparatus body 12 is not so large from the beginning,
When the operation unit 20 and the display unit 16 are sacrificed, problems such as poor operation convenience and difficulty in confirming display contents are caused. Therefore, reducing the size of the operation unit 20 and the display unit 16 is not a very effective solution.

If a speaker having a size that does not degrade the sound quality is incorporated while securing a sufficient space for the operation unit 20 and the display unit 16, it is conceivable that either of the left and right side surfaces 12 b and 12 c of the main body 12 is used. Is. Left and right side parts 12
Since a certain amount of installation space can be ensured in b and 12c, music and the like can be enjoyed without sacrificing sound quality by incorporating the speaker 30 on either the left or right side.

However, in this case, since the speaker 30 does not face the viewer, it is difficult to hear the broadcast sound from the front. In addition to the left and right side surfaces 12b and 12c, the rear surface 12d and the bottom surface 12e are not conceivable, but all of them have a problem that the reproduced sound becomes difficult to hear.

What can be considered there is an upper surface portion 12f of the apparatus main body 12, as shown in FIG. This upper surface part 12
This is because f can secure a relatively large space. However, when such a sound device 10 is provided with a timer function, an alarm operated by the timer, in particular, a set key for repeatedly issuing an alarm for waking up is set differently from other keys (buttons). In most cases, a target button 36 is used. It is better to arrange such an operation button at a position away from other buttons and at a place with good operability. Therefore, the location of such operation buttons is usually the device body 12
Is often selected.

In such a case, the size (diameter) of the speaker 30 to be incorporated may be restricted by the operation button 36. In addition, when the speaker 30 is disposed on the upper surface 12f of the main body 12, the speaker 30 is exposed, so that even if the dustproof cover is attached, the dust falling down for a long time may affect the acoustic characteristics. Can be

In view of the above, the present invention solves such a conventional problem. In particular, the operation buttons are arranged on the upper surface without changing the size of the operation section and the display section including the apparatus main body. It is an object of the present invention to provide a timer-equipped audio device in which a speaker having a diameter as large as possible can be arranged on the upper surface side even in a state in which the speaker is mounted.

[0012]

In order to solve the above-mentioned problems, in the acoustic device with a timer according to the present invention as set forth in claim 1, the operation mode of the acoustic device is set on the front surface of the box-shaped acoustic device main body. An operation unit and a display unit for selection are provided, a speaker is arranged on the upper surface side, and an opening / closing lid for closing the speaker is provided. The audio device main body is used for opening and closing the opening / closing lid. A detection element for turning on and off is provided in connection therewith, and an opening state of the open / close lid is controlled based on an output from a main control unit provided in the audio device main body.

In the present invention, the speaker is arranged on the upper surface of the main body. An opening / closing lid that covers the speaker is provided on the upper surface. A lock mechanism for locking and unlocking the lid on and off the main body is provided in association with the lid. The opening / closing lid functions not only as a dustproof lid, but also as an operation part of an operation button for temporarily stopping an alarm. That is,
The opening / closing lid itself is also used as an alarm operation lid. A detection element is associated with the lock mechanism, and a detection signal related to the opening and closing of the opening / closing lid is obtained. The operation mode is controlled using the detection signal.

If the opening / closing lid itself is also used as an alarm operation plate (operation button), there is no need to arrange a dedicated alarm operation button, so that the space on the upper surface can be effectively utilized and a large-diameter speaker can be incorporated. Can be.

When listening to the radio, since the open / close lid is open, the open / close lid also functions as a kind of acoustic reflection plate (reverberation plate). Makes the sound easier to hear. It is also effective when an alarm is sounded by a speaker.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an audio device with a timer according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of an audio device with a timer 10 according to the present invention. In this embodiment, a box-shaped main body 12 having a substantially cubic shape is provided. Frequency display means 1 having a sliding pointer
4. In addition to the display unit 16 using a flat display element such as a liquid crystal, an operation unit 20 including a plurality of operation keys for setting various operation modes is arranged in a well-balanced manner.

At a predetermined location in the left side view 12b of the main body 12, in this example, a radio reception band (for example, AM and F)
M), and a radio / alarm switch 22 for selecting a radio reception mode (on / off) or for selecting several types of alarm modes as described later. You. On the other hand, a tuning knob 26 for selecting a receiving station, a volume adjusting knob 28, and the like are arranged on the right side portion 12c.

An opening / closing lid 32 is provided on the upper surface 12f of the main body 12 so as to be freely opened and closed. In this case, the back portion 12d is selected to be the opening / closing fulcrum side, and when the opening / closing lid 32 is opened, the front portion 12a is released as shown in FIG. Although the release angle is arbitrary, a certain opening angle (30 to 6) is required to concentrate the sound of the speaker on the front side.
(About 0 °).

A speaker 30 as shown in FIG. 2 is incorporated into the upper surface 12f such that the cone (not shown) faces upward. Reference numeral 30a denotes a mesh-shaped dustproof cover. In the illustrated example, the dustproof cover 30a is attached such that the curved portion of the dustproof cover 30a slightly protrudes from the concave portion 12g provided on the upper surface portion 12f. As will be described later, a speaker having a relatively large diameter that covers almost the entire upper surface portion 12f is attached as the speaker 30.

The opening / closing lid 32 is provided with a speaker 3 as described later.
In addition to functioning as a dust proof function for 0, it also functions as an operation button (operation lid) for temporarily interrupting the repetition alarm mode used when setting the alarm to sound repeatedly at the same time. ,
Further, in the radio reception mode, the opening / closing lid 32 is open as shown in FIG. 2, and in this case, the sound of the speaker 30 is efficiently guided to the viewer located on the front side 12a side (shown by a chain line). Also functions as an acoustic reflector.

When the alarm mode for sounding the alarm at the time set by the timer is set or when the radio is set to the off mode, the opening / closing lid 32 is closed. When the radio reception mode is selected or when the alarm mode is executed and an alarm sound (buzzer sound) sounds, the open / close lid 32 is automatically opened so that the open / close lid 32 is automatically opened. A lock mechanism 40 (to be described later with reference to FIGS. 4 and 5) is provided.

The set of the radio reception mode and the alarm mode will be described with reference to FIG. 3. In this example, the radio and alarm switch 22 can take three operation modes.

When the changeover switch 22 is at the first changeover position a, it is in the radio reception mode and also functions as a power switch. In this case, the band changeover switch 24
The desired broadcast station selected from among the selected bands can be received.

In the first switching position a, the operation unit 20
When the alarm set key ASK provided in the is set, the mode is the radio reception mode and the alarm mode (radio on / buzzer alarm mode). Therefore, at the set time of the timer, an alarm sound is emitted. In this example, since the speaker 30 is also used, the buzzer sound at that time is heard from the speaker 30 so as to overlap the broadcast sound.

When in the second switching position b, the radio reception is off and only the buzzer alarm mode is set. However, also in this case, it is necessary that the alarm set key ASK is set to the ON state. When the timer set time (alarm time) comes, a buzzer sounds as an alarm. This second switching position b is also a state where the power to the radio receiving circuit unit (described later) is turned off.

When in the third switching position c, a radio alarm mode is set. In this case, when the alarm time comes, the operating power is supplied to the radio receiving circuit unit, the radio receiving circuit unit is set to the radio receiving mode, and the broadcasting receiving state is set. The broadcast sound at this time replaces the alarm sound.

Since the power supply to the radio receiving circuit is also turned off at the third switching position c, the power-off mode for the radio receiving circuit is switched between the buzzer alarm mode and the radio alarm mode (the second and third switching positions). (Third switching position) can be selected.

The above-mentioned opening / closing lid 32 is provided with a lock mechanism 40 for locking and unlocking the lid. This lock mechanism 40 will be described with reference to FIG. In this example, as shown in FIG. 2, the tip of the opening / closing lid 32 is slightly bent downward, so that the bent portion 36 serves as an operation button for temporarily interrupting (releasing) the alarm mode. Become. Therefore, a repeated alarm display such as "snooze" as shown in FIG. 2, for example, is provided on the surface of the bent portion 36, and the repeated alarm mode can be temporarily interrupted by pressing the bent portion 36.

The repetitive alarm mode means that when the cover 32 is closed (temporarily interrupted) after an alarm sounds, a preset time interval (every n minutes, for example, every 9 minutes)
Is the mode in which the alarm is executed again.

A lock mechanism 40 utilizing the bent portion 36
Is configured. As shown in FIG.
A substantially L-shaped lock claw 42 is integrally formed on the rear surface of the lock claw.
Is provided on the main body 12 side. The lock release lever 44 is also a lever that is not substantially L-shaped, and one end thereof is a fulcrum 44a.
And a spring 46 for urging the release lever 44 clockwise is attached to a part of the release lever 44.

Further, a plunger 48 in this example, which functions as a lock release means (lever control means), is provided on a part of the release lever 44 opposite to the spring 46. When the plunger 48 is urged by the short-time energization of the plunger 48, the release lever 44 is slightly returned counterclockwise. Release lever 44
The unlocking of the lock claw 42 is released by a slight rotation of the opening / closing lid 32. Therefore, the opening / closing lid 32 is provided with a predetermined angle as shown in FIG. Open to the extent. As the lock release means 48, a solenoid, a drive motor (stepping motor), or the like can be used instead of the plunger.

In order to lock the opening / closing lid 32, it is only necessary to push down the opening / closing lid 32 and push back the release lever 44 partially counterclockwise at the tip of the lock claw 42. Thereafter, the lock claw 42 can be locked by the release lever 44 by the action of the spring 46.

The detection element SNK is arranged in connection with the rotation of the release lever 44. The detection element SNK is an element for repeatedly detecting the setting and release of an alarm. In this example, a detection switch is used, and the rod is arranged so as to abut one side surface of the release lever 44.

When the lock claw 42 is in the locked state, that is, when the opening / closing lid 32 is closed as shown in FIG.
The detection switch SNK is turned on, and a normal alarm or a repeated alarm is set. Therefore, as shown in FIG. 5, when the opening / closing lid 32 is in the open state (unlocked state), the alarm mode or the like is repeatedly released.

FIG. 6 shows an embodiment of a circuit configuration of the acoustic device 10. A signal received by the antenna 52 is tuned to one broadcast station by the radio receiving circuit unit 54, and the tuned broadcast signal is emitted from the speaker 30. In addition, a buzzer sound generating unit 58 is provided, and the generated buzzer signal is transmitted to the speaker 3.
Output from 0 produces a buzzer sound.

The microcomputer 60 is a main control unit that controls the entire sound apparatus 10. The microcomputer 60 is supplied with outputs of a plurality of operation keys from the operation unit 20, and displays necessary information on the display unit 16. A signal is provided. Buzzer sound generator 5
8, a power control signal AL-ON for the power control switch SWA for the power control switch 8 and an open / close control signal CTL for the lock control means 48 for controlling the opening and closing of the open / close lid 32 are generated.

A description will be given of typical operation keys as the operation section 20. A plurality of operation keys related to a timer are provided.
A clock set key TSK is provided. After setting the clock, the hour key HK and the minute key MK can be used to set the alarm time “hour / minute”. Whether to set or cancel the alarm is performed by an alarm set key ASK. The detection output of the detection switch SNK for setting or canceling the above-described repetition alarm is also input to the main control unit 60, and the repetition alarm mode is controlled. When the normal alarm mode is set, the alarm set mode is displayed on the display 16 as shown.

Radio receiving circuit 54 and buzzer sound generator 5
The above-mentioned radio / alarm switch 22 is provided on the power supply path of the power supply + B to the power supply 8. The changeover switch 22 is constituted by a pair of switches SW1 and SW2 configured by a two-circuit three-contact system, and each is switched in conjunction with each other.

At the first switching position a, the radio receiving circuit 5
Since the power of + B is supplied to both 4 and the buzzer sound generation unit 58, each of them is in the operating state. Second switching position b
Then, only the radio receiving circuit unit 54 is in a power supply state.
Then, at the third switching position c, power is supplied only to the buzzer sound generating section 58.

A power control switch SWA is provided between the second switch SW2 and the power supply + B, and is controlled by a power control signal AL-ON from the main control unit 60. The power control signal AL-ON is a control signal generated by the main control unit 60 when an alarm time (timer set time) or a repeated alarm time comes. Further, a confirmation signal RX-ON indicating that the power supply + B has been supplied is generated from the radio receiving circuit unit 54, and this is returned to the main control unit 60. When the confirmation signal RX-ON is obtained, the plunger 48 is activated by the opening / closing control signal CTL.
Thereby, the locked state of the opening / closing lid 32 is released.

Subsequently, the acoustic device 1 thus configured
The operation mode of 0 will be described with reference to FIG.

FIG. 7 shows an operation mode at the first switching position a, and it is assumed that a timer time is set in the main control unit 60 in advance. The opening / closing lid 32 is in a closed state.

When the radio / alarm switch 22 is switched to the first switching position a under such preconditions (FIG. 7A), the operating power supply + B is supplied to the radio receiving circuit 54, so that the radio receiving mode is set. And broadcast can be received (FIG. 7D). When the radio receiving circuit unit 54 is in the operating state, the confirmation signal RX-ON is output (FIG. 7G), and the main control unit 60 outputs the opening / closing control signal CTL by the confirmation signal RX-ON. The lock is released (FIGS. 7B and 7C). Therefore, the opening / closing lid 32 is automatically opened, and the broadcast sound can be viewed in that state. At this time, since the opening / closing lid 32 functions as an acoustic reflector, the speaker 3
Since the sound from 0 can be collected on the front side 12a of the main body, the broadcast can be enjoyed with a loud sound.

At the time of the timer in the radio reception mode, a power supply control signal AL-ON is generated (FIG. 7).
E) This turns on the power control switch SWA,
The driving power supply + B is also supplied to the buzzer sound generation unit 58, and the speaker 30 outputs a buzzer sound in addition to the broadcast sound at the same time. In other words, this state is the buzzer alarm mode, and the user can recognize from the buzzer sound that it is time to set the timer.

When the user closes the opening / closing lid 32 while the buzzer sound is being output, the detection switch SNK is turned on by the rotation of the release lever 44 at that time (FIG. 7F).
When the detection signal is obtained, the main control unit 60 turns off the power control signal AL-ON (FIG. 7E). When the power is turned off, the power control switch SWA is opened, so that the operation of the buzzer sound generating unit 58 stops. Therefore, the buzzer stops. However, the radio reception mode continues.

When the cover 32 is closed, the alarm mode is repeatedly set. Therefore, a timer (not shown) of the main control unit 60 is operated from the time when the detection switch SNK is turned on, and after a predetermined time (n minutes) elapses, the power supply is turned on again. Control signal AL-O
By N, the power control switch SWA is closed, a buzzer sound is output from the speaker 30, and the buzzer alarm mode is restarted. To release this mode, for example, the radio / alarm switch 22 may be switched to another position. When set to the first switching position a in this way,
You can execute the alarm mode (buzzer alarm mode) while listening to the radio.

FIG. 8 shows a radio / alarm changeover switch 2
2 is an explanation of the operation mode when 2 is set to the second switching position b. This operation mode is only the buzzer alarm mode, and the radio reception mode is off.

At a preset timer time, a power control signal AL-ON is obtained, whereby the power control switch SWA is closed, and the driving power + B is supplied to the buzzer sound generating section 58. As a result, a buzzer sound is output from the speaker 30 (FIGS. 8A and 8E). That is, the buzzer alarm mode is set.

Also in this buzzer alarm mode, the plunger 48 as lever control means is energized by the opening / closing control signal CTL from the main controller 60 (FIG. 8).
B) The release lever 44 is slightly rotated counterclockwise by the plunger 48 to release the lock of the lock claw 42. This opens the opening / closing lid 32 (FIG. 8D).
Therefore, even in the buzzer alarm mode, since the opening / closing lid 32 functions as an acoustic reflector, the buzzer sound output from the speaker 30 can be effectively concentrated on the front side of the main body.

To stop the buzzer sound, the open / close lid 32 is closed. When the lid 32 is closed, the detection switch SN
Since K is turned on (FIG. 8C), the main control unit 60 recognizes that the detection output of FIG.
Turn ON off (FIG. 8A). As a result, the supply of the drive power to the buzzer sound generation unit 58 is cut off, so that the buzzer sound is stopped and the alarm mode is temporarily interrupted (FIG. 8E).

When the opening / closing lid 32 is closed, the alarm mode is repeatedly set from that time. Therefore, even if the buzzer sound is stopped, the power control signal A
L-ON is obtained again, and a buzzer alarm mode is output in which a buzzer sound is output.

When the timer is set while the radio reception mode is turned off, the buzzer alarm mode is set, and the buzzer can be sounded with the opening / closing lid 32 opened at the set time. Then, by closing the opening / closing lid 32, the mode automatically and repeatedly shifts to the alarm mode.

FIG. 9 shows a case where a radio broadcast sound is used instead of a buzzer sound as an alarm, and the operation mode is a radio alarm mode. The radio alarm mode can be set by switching the radio / alarm switch 22 to the third switching position c.

In this alarm operation mode, at the time set by the timer, the power control signal AL-ON is obtained, so that the power control switch SWA is turned on and the predetermined operation power + B is applied to the radio receiving circuit unit 54. (FIG. 9A). Thus, the radio broadcast sound can be heard from the speaker 30. Since the radio broadcast sound substitutes for the alarm sound, the radio alarm mode is executed.

When the radio receiving circuit unit 54 operates, a confirmation signal RX-ON is obtained (FIG. 9F), so that the opening / closing control signal CTL is generated and the plunger 48 is energized, thereby unlocking the opening / closing lid 32. (FIG. 9B)
2 opens as shown in FIG. 2 (FIG. 5) (FIG. 9D). The opening / closing lid 32 allows the radio broadcast sound output from the speaker 30 to be effectively concentrated on the front side of the main body.

When the cover 32 is closed in the radio reception state, the detection switch SNK is turned on (FIG. 9).
C) When the main control unit 60 recognizes the detection output at this time, the power control signal AL-ON is turned off (FIG. 9A). As a result, the supply of operating power to the radio receiving circuit unit 54 is cut off, so that the radio is stopped and the mode repeatedly switches to the alarm mode (FIG. 9E). Therefore, the predetermined time n
, The radio alarm again occurs and the broadcast sound is output.

As described above, the upper surface 12f of the apparatus main body 12
The speaker 30 is incorporated in the apparatus, and an opening / closing lid 32 is arranged so as to cover the speaker 30. In this example, the opening / closing lid 32 is configured to be able to be used also as an alarm operation button repeatedly.

The relatively large-diameter speaker 30 can be used because the comparatively large space can be used as an area for arranging the speaker 30 because the upper surface of the main body 12f is used, and the space for arranging the repetition alarm operation button can be omitted. It can be incorporated on the upper surface 12f side.

FIG. 10 shows another embodiment of the present invention. In this example, a cover 70 such as a side plate is provided on both sides of the open / close lid 32. The shielding unit 70 can be made of a cloth, a flexible plastic plate, a mesh product, or the like, and is configured such that when the opening / closing lid 32 is closed, the shielding unit 70 is completely housed inside the main body 12. . Therefore, the shielding portion 70 has a fan shape.

The shielding section 70 allows the reproduced sound of the speaker 30 to be more effectively concentrated on the viewer facing the viewer.

In the above-described embodiment, the present invention is applied to a small-sized audio device having a radio receiving unit having an alarm function. However, the present invention can be applied to other audio devices with a timer.

[0063]

As described above, according to the present invention, a speaker is incorporated into the upper surface of the audio apparatus main body, and an opening / closing lid is provided so as to cover the speaker. The opening / closing lid is used as an operation button for executing a timer function. Is also configured to function.

According to this, even if the operation buttons for temporarily interrupting the alarm are arranged on the upper surface without changing the size of the operation section and the display section, especially in the apparatus main body, even if the operation button is arranged on the top section, the size is as large as possible. A speaker having a diameter can be arranged on the upper surface side.

By using the operation button such as the alarm set button repeatedly as the open / close lid, a large empty space can be taken up on the upper surface, and a speaker having a relatively large diameter is arranged on the upper surface. be able to. When the speaker is used, the opening / closing lid is always opened, so that the opening / closing lid can be used as a reflection plate of the reproduced sound, so that the sound of the speaker can be effectively concentrated on the front side of the main body.

Of course, when the speaker is not used, the lid is closed, so that dust does not collect on the cone of the speaker.

Therefore, the audio device with a timer according to the present invention is extremely suitable for application to an audio device having a small single housing having the above-mentioned radio receiving section.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing one embodiment of an audio device with a timer according to the present invention.

FIG. 2 is a perspective view of the acoustic device with an opening / closing lid opened.

FIG. 3 is an explanatory diagram of a changeover switch.

FIG. 4 is a partially cutaway view of the main body of the acoustic device in a state where an opening / closing lid is closed.

FIG. 5 is a partially cutaway view of the main body of the acoustic device in a state where an opening / closing lid is opened.

FIG. 6 is a circuit block diagram of the acoustic device.

FIG. 7 is an explanatory diagram of a radio-on / buzzer alarm mode.

FIG. 8 is an explanatory diagram of a radio off / buzzer alarm mode.

FIG. 9 is an explanatory diagram of a radio alarm mode.

FIG. 10 is a perspective view of a main part showing another embodiment of the present invention.

FIG. 11 is a perspective view showing a conventional example.

FIG. 12 is another perspective view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Acoustic apparatus, 12 ... Main body, 12a ... Front part, 12b, 12c ... Side part, 12f ... Top part, 20 ... Operation part, 30 ... Speaker, 32・ ・
・ Open / close lid, 36 ・ ・ ・ Repeat alarm set button,
40: Lock mechanism, 48: Plunger, SN
K: detecting element, 54: radio receiving circuit, 58
... Buzzer sound generator, 60 ... Main controller

Claims (11)

[Claims] An operation unit and a display unit for selecting an operation mode of an audio device are provided on a front portion of a box-shaped audio device main body, and a speaker is provided on an upper surface portion thereof. An opening / closing lid for closing is provided, and the sound device main body is provided with a detection element that is turned on / off in connection with opening / closing of the open / close lid, and based on an output from a main control unit provided in the audio device main body. An acoustic device with a timer, wherein the open state of the open / close lid is controlled. 2. The acoustic device with a timer according to claim 1, wherein the opening / closing lid is for dustproofing the speaker. 3. The acoustic device with a timer according to claim 1, wherein the opening / closing lid is an acoustic reflector for the speaker. 4. The audio device with a timer according to claim 1, wherein the detection element is a release key for a mode for repeatedly performing an alarm operation. 5. The audio device with a timer according to claim 1, wherein the detection element is a detection switch, and is associated with a lock mechanism of the opening / closing lid. 6. The lock mechanism includes: a lock claw provided on a lower surface side of the opening / closing lid; a release lever provided on the main body side for locking and releasing the lock claw; 6. The sound-equipped acoustic device according to claim 5, further comprising lever control means for controlling. 7. The acoustic device with a timer according to claim 6, wherein the detection element is provided in association with the release lever. 8. The lever control means includes a plunger,
The acoustic device according to claim 6, wherein the acoustic device is configured by one of a solenoid and a drive mode. 9. An alarm set button is provided on the operation unit. In an alarm set mode, a control signal for automatically opening the opening / closing lid as an output from the main control unit at a set time is output from the lever. 7. The audio device with a timer according to claim 6, wherein the audio device is supplied to a control unit. 10. The audio device with a timer according to claim 1, wherein the opening / closing lid is an operation unit for temporarily interrupting a repetition alarm. 11. The audio device with a timer according to claim 9, wherein the alarm sound in the alarm mode is one of a buzzer sound and a radio broadcast sound.