JPH0336257B2 - - 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. This makes it possible to easily switch the operation of the radio receiver and radio receiver with excellent operability.

At least a television receiver circuit and a radio receiver circuit are incorporated into one housing, and a cathode ray tube of the television receiver and an indicator and an operation unit for the television receiver are installed on one side of the housing, A speaker and a radio receiver indicator that are shared by both the television receiver and the radio receiver are installed on a second surface perpendicular to this one surface, while the housing is rotatable relative to the base. When using a television receiver, the first side with the cathode ray tube etc. should face the front, and when operating the radio receiver, the second side with the speakers etc. should face the front. A complex electronic device that rotates the housing to face the camera and switches the supply of power supply voltage to the television receiver and radio receiver in conjunction with the rotation of the housing, thereby switching the operation of each electronic device. equipment is proposed.

This composite electronic device will be explained below using the attached drawings. Figures 1 to 3 show the basic configuration of the composite electronic device. In the figure, 1 is a housing (hereinafter referred to as the device body) in which a television receiver circuit and a radio receiver circuit are incorporated. A cathode ray tube 2 for the television receiver, a channel indicator 3 for the television receiver, a channel selection knob 4 for the television receiver, and a VHF/UHF band switching knob 5 are installed on the first surface. Also, the device body 1
A speaker 6 shared by the television receiver and the radio receiver, and an indicator 7 for the radio receiver are installed on a second surface perpendicular to the first surface. The device body 1 has a power switch/volume adjustment variable resistor knob 8 and a radio receiver tuning knob 9 installed on a third surface perpendicular to the first and second surfaces. There is. Reference numeral 10 denotes a base, which contains a power supply circuit including a power transformer, a rectifying and smoothing circuit, a voltage stabilizing circuit, and the like. The device main body 1 is rotatably connected to the base 10 using two plate-like swing arms 11 and 12. These two swing arms 1
1 and 12 have both ends connected to the device body 1 and the base 10.
is rotatably coupled to each of the first
Place the device body 1 so that the second side on which the speaker 6 etc. are installed faces the front, as shown in the figure, and so that the first side on which the cathode ray tube 2 etc. are installed faces the front, as shown in Figure 2. It is provided so as to be rotatable with respect to the base 10. At this time, the device main body 1 is stably set in the state shown in FIG. 1 and the state shown in FIG. 2, respectively.

Therefore, when operating the radio receiver, as shown in FIG. Set to .
Here, by operating the power switch/volume adjustment variable resistor knob 8 and the channel selection knob 9, it is possible to listen to the radio broadcast of a desired broadcast station. In FIG. 3, the state of the device main body 1 and swing arms 11, 12 at this time is shown by solid lines.

On the other hand, when viewing a television receiver, the swing arms 11 and 12 are used to
By rotating the , the first surface on which the cathode ray tube 2 and the like are installed is set to face the front. At this time, the second surface on which the speaker 6 and the like are installed faces upward. In FIG. 3, the state of the main body 1 and the swing arms 11, 12 at this time is shown by dashed lines.

In the state shown in FIG. 1, the cathode ray tube 2 faces downward and faces the base 10, so that it can be protected. Furthermore, in each of the states shown in FIGS. 1 and 2, the indicators 3 and 7 face the front, and when the television receiver is reached, the operating section is also located in the front, improving operability. In addition, switching (rotating) the television receiver and radio receiver to their respective usage states can be easily performed, and at this time, the device body 1 is rotated so that it is positioned at the rotation axis of the swing arms 11 and 12. If an elastic body is installed that exerts a biasing force on the device body 1,
The rotation operation can be performed more smoothly.

This composite electronic device is configured to automatically switch the supply of power supply voltage to the television receiver circuit and the radio receiver circuit when the main body of the device rotates. Therefore, when the radio receiver is operating as shown in Fig. 1, if the main unit 1 is rotated and set as shown in Fig. 2, power is supplied to the television receiver circuit instead of the radio receiver circuit. After voltage is supplied and the device is rotated, the television receiver can be operated without having to operate a switch again.

The configuration of this changeover switch section will be explained using FIGS. 4 to 6. In the figure, 13 is a television-radio changeover switch, which is fixed to a mounting bracket 14. This mounting bracket 14 is fixed to a cabinet constituting the device body 1 with a plurality of screws 15 to secure the television-radio changeover switch 13 to the device body 1. The changeover switch 13 includes a projecting piece 16 and an elastic contact piece 17.
When the contact piece 17 presses the protrusion 16, 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 17 of the changeover switch 13, an opening 21 is provided in the cabinet of the device main body 1, and the contact piece 17 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 11 to project, and the contact piece 17 is controlled by the swing arm 11 and the pusher 22.

FIG. 4 shows a case where the device main body 1 is set so that the radio receiver can operate as shown in FIG.
2 enters into the device main body 1 through the opening 21 and presses the contact piece 17, and further presses the protruding piece 16, so that the changeover switch 13 switches the + from the power supply circuit 19.
B voltage is supplied to the radio receiver circuit 18. In order to watch the television receiver next time from this state, when the device body 1 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 of the rotation, this state does not change even after the device main body 1 has been completely rotated as shown in FIG. Therefore, assuming that the tuning knob 4 has been tuned in advance, it is possible to receive television broadcasts and display images on the cathode ray tube 2 at the same time as the rotation. This also applies when viewing a television receiver and switching to a radio receiver.

However, in this case, as shown in FIGS. 4 to 6, the range in which the changeover switch 13 operates as the radio receiver circuit 18 is extremely narrowly limited, so if the base 10 is It has the disadvantage that it cannot be used if it is installed in a place where the front surface is low and sloping, and also when switching to a radio receiver after watching a television receiver, the image projection surface of the cathode ray tube 2 is almost always facing downward. Base 10
Since the circuit operates as the television receiver circuit 20 until it faces the television receiver circuit 20, it is not possible to discern changes in the image projection surface of the cathode ray tube 2 under normal operating conditions, and the operation of the television and radio selector switch 13 can be clearly confirmed. There is a drawback that it cannot be done. Furthermore, the setting position of the changeover switch 13 is restricted by movable parts such as the pusher 22 of the swing arm 11, the contact piece 17 of the hole 21, the protruding piece 16, etc., and the dimensions of the interrelationships between the parts are machined with extremely high precision. However, there was a problem in that it required assembly work, which was disadvantageous in terms of mass production and cost.

The present invention eliminates the above-mentioned drawbacks by providing a mercury switch inside the device body and operating the mercury switch in conjunction with the rotation of the device body, thereby controlling the operation of the television receiver and the radio. This allows the operation of the receiver to be easily switched with excellent operability.

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

FIG. 7 is a schematic side sectional view showing the basic configuration of a mercury switch 70, which is an important component used in an embodiment of the present invention. Band-shaped fixed electrodes 72, _72R , _72T are arranged at predetermined intervals on the inner wall of the chamber, and an appropriate amount of mercury, which will become the movable electrode 73, is injected to form a closed chamber 75. Connection terminals 74, 74 _R , 74 _T are connected to the mercury switch case 71 from the fixed electrodes 72, 72 _R , 72 _T , respectively.
It is electrically connected so as to protrude from the outside. The operation of the mercury switch is generally the same as in conventional use. The mercury that becomes the movable electrode 73 has its own weight and is always pulled by gravity (downward in the figure), so the mercury switch 70
corresponds to the installation state of each of the fixed electrodes 72-72.
It operates to open and close connections between _R and _72-72T . In one embodiment of the present invention, the connection terminals of the mercury switch ₇₀ are as shown in _FIG . Each is electrically connected to the circuit 20.

FIG. 7A is a side sectional view showing the connection state of the movable electrode 73 when the switching operation is in the middle of the switching operation (intermediate point), and FIG. 7B shows the connection state of the movable electrode 73 when used as a radio receiver. C is a side sectional view showing the connection state of the movable electrode 73 when used as a television receiver. Electrical connections are shown by solid lines, dotted lines, and dash-dot lines in the block diagram showing the electrical system in FIG. 8, respectively. The mercury switch 70 can be attached to the main body 1 of the device in any place and by any method as long as the connection conditions shown in FIG. 7 are ensured, and illustration thereof is omitted.

In one embodiment of the present invention, the rotating range is shown as having a substantially right angle structure, so the fixed electrodes 72, _72R , _72T of the mercury switch 70 are also shown as being arranged at substantially right angles. When used for objects with greatly different rotation ranges or as an operation changeover switch for multiple circuits, this can be easily achieved by changing the arrangement width of the fixed electrodes or increasing the number of electrodes. .

Moreover, although the shape of the mercury switch 70 has been described as being approximately cylindrical, it may also be approximately spherical or ring-shaped. Furthermore, by adjusting the amount of mercury 73 injected and the electrode spacing, the mercury 73 evaporates into the closed chamber 75 during overload use (load shot), contributing to a safety design that opens the circuit. Become something. By selecting the placement location of the mercury switch 70, the effect can be further enhanced.

Another embodiment of the invention includes a mercury switch 70.
The mercury switch is not limited to the above-mentioned mercury switch, and various directional switches, relays, etc. can be used as long as there is an operation of the directional switch that corresponds to the arrangement state that fulfills the role. For example, this can be realized by using a magnetic switch or a location sensor in consideration of the combination with a metal body that is an internal component of the main body 1 of the device.

Therefore, with this configuration, there is no possibility of the problems shown in Figures 4 and 5 occurring, and the ease of assembly work is improved, and the operational status of the changeover switch is clarified, making it possible to greatly improve the design of the equipment itself. The degree of freedom is increased, and a complex electronic device with a unique design and excellent operability can be provided at a low cost.

In the above embodiments, a combination of a television receiver and a radio receiver has been described, but the present invention is not limited to this and can be applied to combinations of other electronic devices.

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 put into use. The housing is rotatably installed so that the surface on which the functional parts are arranged faces the front, and a directionality changeover switch such as a mercury switch is provided to select each functional part arranged on two sides of the housing. By configuring this directional selector switch to operate in conjunction with the rotation of the casing, each functional section is automatically switched when the casing is rotated, and there is no need to operate the switch again. This makes it extremely convenient in practice.

[Brief explanation of drawings]

Figures 1 and 2 are perspective views showing different states of the composite electronic device, Figure 3 is a schematic side view showing the basic configuration of rotating parts, and Figures 4 and 5 are main parts of the device. 6 is a block diagram showing the configuration of the electrical system of the device; FIG. 7 is a mercury switch used in a composite electronic device according to an embodiment of the present invention. These are schematic side sectional views showing the basic configuration, A is a side sectional view with the switching operation at an intermediate point, B is a side sectional view showing the state when used as a radio receiver, and C is a side sectional view showing the state when used as a television receiver. FIG. 8 is a block diagram showing the configuration of the electrical system of the electronic device according to the present invention. 1... Housing, 2... Cathode ray tube, 3... TV indicator, 4... TV tuning knob, 5...
...TV band selection knob, 6...Speaker, 7
... Radio indicator, 8 ... Power switch and volume adjustment knob, 9 ... Radio station selection knob, 10 ... Base, 11, 12 ... Swing arm, 18 ... Radio receiver circuit, 19 ... ...Power supply circuit, 20...Television receiver circuit, 70...
Mercury switch, 71...Mercury switch case, 7
2,72 _R , 72 _T ... Fixed electrode, 73... Movable electrode (mercury), 74,74 _R , 74 _T ... Connection terminal,
75...Secret room.

Claims (1)

[Claims] 1 At least two types of mutually different electronic devices are built into one housing, and at least the main functional parts of each are arranged on two sides of the housing, and the housing is used to adjust the function of each of the functional parts according to the usage state. It is rotatably installed so that the surface on which it is placed faces the front, and a directionality changeover switch such as a mercury switch is provided to select each functional section placed on the two sides of the casing. A composite electronic device in which a switch is configured to operate in conjunction with rotation of the casing.