JPH0324798B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite electronic device in which at least two different electronic devices, such as a television receiver and a radio receiver, are incorporated into the same housing. The installation state can be changed in the usage state, and the change operation can be easily performed, and the switching between the television receiver operation and the radio receiver operation can be clearly indicated. It is.

For example, a device body that incorporates the circuits that make up a television receiver, radio receiver, and circuits that make up an electronic clock is placed on a base that has a built-in power supply circuit consisting of a rectifier/smoothing circuit, a power transformer, etc. The device is installed so that it can be rotated, and the image projection surface of the cathode ray tube appears on one side of the equipment body, and the television receiver and radio receiver are mounted on the other surface perpendicular to this surface and the direction of rotation. When the cathode ray tube, speaker, and clock are installed so that the shared speaker and time display of the clock are visible, and the device is set so that the image projection surface of the cathode ray tube faces the front, the television reception is not possible. machine and clock to work (at this time the radio receiver should not work), while
A composite electronic device has been proposed in which, when the main body of the device is set so that the speaker and the time display section of the clock face forward, the operation of the television receiver is stopped and the radio receiver and clock are enabled to operate.

The configuration of this composite electronic device will be explained below using the accompanying drawings. FIG. 1 shows the state in which a radio receiver is operated, and FIG. 2 shows the state in which a television receiver is operated. In the figure, reference numeral 1 denotes a base, which houses a power supply circuit consisting of a power transformer, a rectification/smoothing circuit, a voltage stabilization circuit, etc. Reference numeral 2 denotes the main body of the device, which contains a television receiver circuit, a radio receiver circuit, and an electronic clock.On one side, there is a speaker 3 that is shared by the television receiver and radio receiver, and a time display for the electronic clock. A section 4 and an indicator 5 for a radio receiver are installed. Further, the device main body 2 has the cathode ray tube 6 installed so that the image projection surface of the cathode ray tube 6 appears on a second surface substantially orthogonal to the first surface, and a television channel selection knob 7 on the second surface. , indicator 8 for television receivers
A UHF and VHF band switching knob 9 is also installed. Further, the device main body 2 has the first surface,
On the third surface perpendicular to the second surface, there is a power switch and volume adjustment variable resistor knob 10, a radio tuning knob 11, and a radio band (AM-FM).
A switching knob 12, a power switch switching knob 13, and a brightness switching knob 14 of the time display section 4 are installed respectively, and the time is set on a surface perpendicular to the first and third surfaces and facing the second surface. A plurality of buttons 15 are provided for use.

In the above configuration, the device main body 2 is rotatably attached to the base 1. The structure of this rotating part is shown in FIG. The device main body 2 is rotatably attached to the base 1 by two plate-shaped swing arms 16 and 17. That is, both ends of the two swing arms 16 and 17 are rotatably connected to the base 1 and the device main body 2.

FIG. 1 shows the radio receiver in an operable state, in which case the first surface on which the speaker 3, time display section 4, and radio receiver indicator 5 are installed faces forward. In this state, by operating the knob 10 of the power switch and variable resistor for volume adjustment, and further operating the channel selection knob 11, it is possible to listen to the radio broadcast of a desired station. Of course, at this time, the electronic clock is also operating, and the time display section 4 indicates the current time. On the other hand, when looking at the cathode ray tube 6 in this state, since its image projection surface faces downward and faces the base 1, the cathode ray tube 6 can be protected and safety is improved.

If you want to watch the television receiver next time from this state, rotate the device body 2 relative to the base 1 in the direction of arrow A, and as shown in Fig. indicator 8 and
The second section is equipped with a VHF/SHF band switching knob 9.
face. When the power switch is turned on and the device body 2 is rotated, the radio receiver operation is automatically switched to the television receiver operation, and further operation of the band switching knob 9 and the tuning knob 7 is performed. This allows you to receive the television broadcast of your desired station. Of course, the electronic clock continues to operate even in this state. Then, when the main body 2 of the device is rotated in the direction of arrow B with respect to the base 1, the speaker 3,
The first surface on which the time display section 4 and the radio indicator 5 are installed can face the front.

According to this configuration, both the indicators 5 and 8 are positioned so as to face the front when the television receiver is in use and the radio receiver is in use, and the operating functions of each are independent, so operability is improved. It will improve. Furthermore, the two swing arms 16 and 17 facilitate switching from one usage state to the other usage state. Here, if an elastic body that exerts an elastic force in the rotating direction of the device main body 2 is installed on the rotating shaft portions of the swing arms 16 and 17, the device main body 2 can be rotated more smoothly.

The configuration of the changeover switch section will be explained using FIGS. 4 to 6. In the figure, 23 is a television-radio changeover switch, which is fixed to a mounting bracket 24. This mounting bracket 24 is fixed to the cabinet constituting the device main body 2 with a plurality of screws 25 to secure the television-radio changeover switch 23 to the device main body 2. The changeover switch 23 includes a projecting piece 26 and an elastic contact piece 27.
When the contact piece 27 presses the protrusion 26, the radio receiver circuit 18 is connected to the power supply circuit 19 as shown in FIG. 20 is connected to the power supply circuit 19.

Opposed to the contact piece 27 of the changeover switch 23, an opening 21 is provided in the cabinet of the device main body 2, and the contact piece 27 can be accessed from the outside through this opening 21.
It is possible to control the In this example, a pusher 22 is integrally provided on one of the swing arms 17 to project, and the contact piece 27 is controlled by the swing arm 17 and the pusher 22.

FIG. 4 shows a case where the main body 2 of the device is set so that the radio receiver can operate as shown in FIG.
2 enters into the device main body 2 through the opening 21 and presses the contact piece 27, and further presses the protruding piece 26, so that the changeover switch 23 switches the + from the power supply circuit 19.
B voltage is supplied to the radio receiver circuit 18. In order to watch the next television receiver from this state, when the device body 2 is rotated as shown in FIG. 18
Instead, the +B voltage from the power supply circuit 19 is supplied to the television receiver circuit 20. Although FIG. 5 shows the state in the middle, this state does not change even after the device main body 2 has been completely rotated as shown in FIG. Therefore, assuming that the tuning knob 7 has been tuned in advance, it is possible to receive television broadcasts and display images on the cathode ray tube 6 at the same time as the rotation. The same is true when switching to a radio receiver while watching a television receiver.

However, in this case, as shown in FIGS. 4 to 6, the range in which the radio receiver circuit 18 operates in the operating state of the selector switch 23 is designed to be extremely narrow, so that the base 1 may be lowered forward even slightly. If it was installed on a slope, it would be difficult to use it as a radio receiver, and it would continue to function as a television receiver. Also, when watching a television receiver and switching to a radio receiver, the cathode ray tube 6
Until the image projection surface of the cathode tube 6 faces downward and faces the base 1, it operates as a television receiver, so it is not possible to discern changes in the image projection surface of the cathode tube 6 under normal operation. Therefore, there is a drawback that the operating state of the television and radio selector switch 23 cannot be clearly confirmed. Furthermore, when used as an electronic clock, a brightness adjustment switch (not shown), which is a dedicated component for adjusting the brightness of the time display section 4 in relation to the surrounding brightness and the usage status of the device main body 2, is installed on the brightness switching knob 14. This requires installation, which results in a complicated structure and disadvantages in terms of cost.

The present invention eliminates the above-mentioned drawbacks, and has a configuration in which a pilot lamp is lit on the first surface of the device main body in conjunction with the operation of a radio receiver, and the brightness of the time display section of an electronic clock is changed. This clarifies the display of operation classification between the television receiver and the radio receiver, and improves operability. A cathode ray tube of the television receiver is disposed on the second surface, and the image projection surface of the cathode ray tube serves to display the operation classification of the television receiver.

An embodiment of the present invention will be described below with reference to FIGS. 7 and 8. Components that are the same as those shown in FIGS. 1 to 6 are designated by the same numbers and their descriptions will be omitted.

FIG. 7 is a block diagram showing the configuration of an electrical system of a composite electronic device in an embodiment of the present invention,
The major difference from the previously proposed block diagram of FIG. 6 is that a pilot lamp 29 is provided on the first surface of the device body 2' to indicate the operating divisions of the radio receiver circuit 28. The second feature is that a mercury switch 30 functioning as a directional switch is installed inside the device body 2' to cut off the power supply to the television receiver circuit 20 as appropriate. FIG. 8 is a perspective view of the device. Here, 5' is a radio indicator with a pilot lamp. Although the figure shows an example in which the pilot lamp 29 is arranged independently, the pilot lamp of the pilot lamp-equipped radio indicator 5' may be shared for operation display and indicator illumination. . In addition, a mercury switch 30 that operates as a directional switch
By cutting off the power supply to the television receiver circuit 20 before the cathode ray tube 6 faces downward and facing the base 1, changes in the image projection surface of the cathode ray tube 6 can be clearly seen even in normal operating conditions. It has the function of becoming Note that this mercury switch 30 does not necessarily need to be installed, and may be omitted in some cases. Although not shown in the drawings, the mercury switch 30 is installed inside the main body 2' in such a manner that the circuit is connected only during use and installation as a television receiver.

According to the above configuration, even if there are structural weaknesses as shown in Figures 4 and 5, the user can correctly recognize the operating status of the radio receiver and television receiver, and the design of the swing mechanism can be improved. You will be satisfied with the correct operation, and you will be able to use it with confidence without any doubts.

Next, a composite electronic device according to another embodiment of the present invention will be described in detail with reference to FIGS. 9 to 11. Similarly to the above, parts that are the same as those in FIGS. 1 to 6 are designated by the same reference numerals, and their explanations will be omitted.

FIG. 9 is a block diagram showing the configuration of the electrical system of a composite electronic device according to another embodiment of the present invention, FIG. 10 is a perspective view of the same electronic device, and FIG.
This is a perspective view of a usage state different from that shown in Figure 0, and the major differences from the previously proposed composite electronic device are the brightness changeover switch (not shown) and the brightness changeover switch (not shown) of the time display section 4' of the electronic clock. The independent installation of the knob 14 is removed, and the switch 33 is configured with a brightness adjustment switch 33a and a power supply switch 33b that are linked, the brightness switch 14 that requires external operation is deleted, and the time display is changed. Part 4'
The structure is such that the operation is linked to the usage status of the device main body 2''.The power supply selector switch 3
3b connection is the same as the method proposed earlier. The watch power supply circuit 31 and one end of a fixed resistor R are connected to the input terminal of the brightness adjustment switch 33a. On one side of the output terminal of the changeover switch 33a, the other terminal of the fixed resistor R and the clock display drive circuit 32 are connected to a terminal that is linked to the usage status of the television receiver.
Connect. The terminals that are linked to the usage status of the radio receiver are empty terminals. The movable terminals of the respective switches 33a and 33b of the changeover switch 33 are interlocked by the presser 22 coming into pressure contact with the contact piece 27 of the changeover switch 33 and controlling the protrusion 26. In this embodiment, the supply voltage +BA from the watch power supply circuit 31 connects both ends of the fixed resistor R to the switch 3 when used as a television receiver.
3a is short-circuited, and the clock display drive circuit 32 has +BA.
=+BT voltage is supplied, and the time display section 4' displays a bright display. On the other hand, when used as a radio receiver, a fixed resistor R is connected in series to the supply voltage +BA, so the time display drive circuit 32 is connected to +BA.
>+BT is supplied, and the time display section 4' is connected to display a dark display. Therefore, with the above configuration, the time display section 4' can be used both in the state of operating as a radio receiver and in the state of operating as a television receiver.
Since the brightness of the display changes, the user can easily distinguish between the two usage states during operation. Moreover, when used as a radio receiver (Fig. 1, Fig. 8, Fig. 10), the brightness of the time display section of the clock is too noticeable when used in dark surroundings such as at night, so conventionally a dedicated This configuration also has the advantage of being able to eliminate the use of a brightness adjustment switch (not shown) and the provision of a dedicated brightness change knob 14 on the third surface of the device body 2.

In addition, in the embodiments of the present invention described above, each can be implemented independently, but
It goes without saying that the effect can be further enhanced by adding a pilot lamp 29 and a mercury switch 30, as well as using a brightness adjustment switch. Furthermore, when this device is used as a television receiver (Fig. 2), the time display section 4 of the clock is on the top side, which is different from the surface on which the cathode ray tube 6 is disposed, so the display state becomes brighter. Nevertheless, there is no need to reset the display of the time display section 4 to a dark state.

Further, in the above embodiment, a case has been described in which a television receiver, a radio receiver, and an electronic clock are incorporated in the same housing, but the invention is not limited to this. The present invention is also applicable to cases where other devices are integrated.

As described above, according to the present invention, at least two different types of electronic devices are built into one housing, at least the main functional parts of each are arranged on two sides of the housing, and the housing is placed in a state of use. By installing the functional parts in a rotatable manner so that the surface on which the functional parts are arranged faces the front, each functional part faces the front in each usage state of each electronic device, making it easy to operate. Improves sex. In addition, by installing the housing so that it can be rotated, it is possible to easily and reliably display the operation switching from the usage state of one electronic device to the usage state of the other electronic device.

[Brief explanation of drawings]

1 is a perspective view of a composite electronic device, FIG. 2 is a perspective view of the same electronic device in a usage state different from that shown in FIG. 1, and FIG. 3 is a side view showing a schematic configuration of a rotating mechanism of the same electronic device, 4 and 5 are partially cutaway side sectional views showing different configurations of the main parts of the same device, FIG. 6 is a block diagram showing the configuration of the electrical system in the same device, and FIG. 7 is the invention of the present invention. A block diagram showing the configuration of an electrical system of a composite electronic device in one embodiment, FIG. 8 is a perspective view of the same device, and FIG. 9 shows a configuration of an electrical system of a composite electronic device in another embodiment of the present invention. 10 is a perspective view of the same electronic device in the embodiment shown in FIG. 9, and FIG. 11 is a perspective view of the same device in a state of use different from that shown in FIG. 10. 1...Base, 2', 2''...Device body, 4'...
Time display section, 5'...Radio indicator with pilot lamp, 3...Speaker, 14...Brightness selection knob for time display section, 28...Radio receiver circuit, 29...Pilot lamp, 30...Mercury switch , 31... Clock power supply circuit, 32... Clock display drive circuit, 33... Changeover switch, 33a
...Brightness adjustment switch, 33b...Power supply switch.

Claims (1)

[Scope of Claims] 1. At least two types of different electronic devices are incorporated into one housing, and at least the main functional parts of each of the electronic devices are arranged on two sides of the housing,
This housing is installed so that it can be rotated so that the surface on which each of the functional parts is arranged faces the front according to the usage state, and display parts for displaying the operating status of each of the electronic devices are provided on two sides. Composite electronic equipment characterized by the following: 2 One electronic device is a television receiver, the other electronic device is a radio receiver, a cathode ray tube and a television indicator are installed on the first surface of the housing, and a first device equipped with the cathode ray tube, etc. The surface of the housing is configured to face downward when the radio receiver is used, and a radio indicator with a pilot lamp and a speaker are arranged on the second surface of the housing, and the television receiver and the radio are arranged on the second surface of the housing. 2. The composite electronic device according to claim 1, further comprising a base having a built-in power supply circuit for supplying power to the receiver, and wherein the casing is rotatable with respect to the base. 3. One electronic device is a television receiver, the other electronic device is a radio receiver,
Yet another device is a clock, and the first
A cathode ray tube, a television indicator case, and an operation unit are arranged on the second side of the case, and a radio indicator, a speaker, and a clock time display are arranged on the second side of the case. The composite electronic device according to claim 1, characterized in that the operating state of the radio receiver is displayed.