JPS58177003A - Antenna device of composite electronic device - Google Patents

Abstract

PURPOSE:To use a built-in antenna for the TV and radio reception, by installing the built-in rotatable and expandablelcontractable antenna operated in common for the titled electronic device. CONSTITUTION:The built-in antenna 23 is used as an Fm antenna by expanding the antenna 23. In this case (radio reception), the screen of a CRT 5 is directed downward and faces a base 22, then the CRT 5 is protected and safe to damages. In listening an AM broadcasting by the radio receiver, the antenna 23 is incorporated in the case of a device main body 21, allowing to offer good besign performance and to avoid damages to the antenna touched with others. In listening an FM broadcasting, the crown 23a of the antenna 23 is pulled to expand an element 23b. Thus, the antenna 23 is expandable/contractable and rotatable freely the same as conventional rod antennas and the antenna functions are attained the same as the antenna for the TV receiver.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an antenna device that can be applied to a composite electronic device in which at least two different wireless electronic devices, such as a television receiver and a radio receiver, are incorporated into the same housing. This allows the installation state of each electronic device to be changed depending on the state in which it is used, and the change operation can be easily performed without being hindered by the antenna.

Recently, a radio receiver 2 clock is integrated into a television receiver, and a time display section 2, a speaker 3, and a radio indicator section 4 are arranged on one side of the cabinet 1, as shown in Figs. 1 and 2. A cathode ray tube 6° television indicator section 6. TV band switching knob7. A TV channel selection knob 8 is arranged, and a volume adjustment groove 9 is provided on the other side. Radio selection knob 1
0° Radio band switching knob 112 Clock knob 12
For example, when operating a radio receiver, place the cathode ray tube 6 on the bottom side as shown in FIG. 1, and place the time display section 2. With the side where speaker 3 etc. are placed facing the front,
On the other hand, when viewing a television receiver, as shown in FIG.
．． It has been proposed that the surface on which the speaker 3 and the like are arranged is used as the upper surface. At this time, although not shown, if the cabinet 1 is rotatably mounted on a base and can be rotated between the state shown in FIG. 1 and the second state, operability will be improved. Although we can provide composite electronic equipment,
When installing an antenna for receiving television broadcasts on such equipment, as shown in the figure, the time display section 2. It is conceivable to install the antenna 13 on the surface on which the speaker 3 and the like are arranged.

However, in this case, as shown in FIG. 1, when operating a radio receiver, for example, the exposed antenna 13 is visible, which impairs the design. Since the antenna 13 is installed on a flat surface despite the arrangement of the antenna 13, there is a drawback that other objects are likely to get caught on the protruding antenna 13.

The previously proposed method that eliminates the above disadvantages is to provide a recess in a part of the cabinet and install the antenna within this recess, while attaching a lid that can cover the antenna to the cabinet. It is rotatable and the antenna is shielded when the television receiver is not in use.

An example of this will be explained below using FIGS. 3 to 6.

Components in the drawings that are the same as those in FIGS. 1 and 2 will be described with the same reference numerals.

In FIG. 3, a recess 16 is formed across the surface of the cabinet 16 on which the time display section 2, the speaker 3, etc. are arranged, and a surface perpendicular to this surface, and an antenna 17 is attached to one wall of the recess 16. This antenna 17 is extendable and retractable like a general antenna.

It is rotatable and is housed in the recess 16 in a contracted state as shown in FIG. Reference numeral 18 denotes a lid body that covers this antenna 17, and is L-shaped and has support shafts 19 at both ends. A recessed groove 2o is provided in the cabinet 15 for this support shaft 19, and by inserting the support shaft 19 into this recessed groove 20, the lid body 18 is rotatably attached to the cabinet 16.

FIG. 4 shows the state when not using it as a television receiver, with the lid 18 closing the opening of the recess 16 and the antenna 17.
to shield. At this time, each surface of the lid 18 is connected to the cabinet 1.
Therefore, when arranging equipment as shown in Fig. 4 and operating a radio receiver, for example, the antenna 17 is not visible, so the design is not compromised, and the antenna 17 is flush with each side of the antenna. There is no chance of clothing or the like getting caught in the antenna and damaging the antenna.

FIG. 5 shows the state when the antenna 17 is used, and the support shaft 1 of the lid body 18 is in the closed state as shown in FIG.
Hold the lid 18 on the support shaft 1 by placing your finger on the end farthest from 9, or by placing your finger on the small protrusion on this end.
The antenna 1 and 7 can be taken out by rotating the antenna 9 around the antenna 9 and opening it.

As described above, the recess 16 is provided in the cabinet 16, and the antenna 17 is installed in the recess 16.
By rotatably attaching the lid 18 to the cabinet 16, which can close the opening of the antenna 6 and shield the antenna 17, the antenna 17 can be shielded when the antenna 17 is not in use. Since the antenna 17 can be flush with the cabinet 15, the antenna 17 is superior in terms of design, and there is no possibility that other objects will get caught on the antenna 17 and cause damage to it.

However, in this case, as shown in FIG.
There is an inconvenience in that the antenna 17 always needs to be retracted to the retracted state in order to install the antenna 17, and the antenna 17 cannot be used as a radio receiver. Although not shown in the diagram, special electronic components are used in the FM antenna input signal circuit of the radio receiver to connect it to the electromagnetic circuit, and measures are taken to obtain the antenna input signal to increase sensitivity. It had become.

This has the disadvantage of increasing the amount of materials used and increasing costs.

The present invention eliminates the above drawbacks, and is perpendicular to the first surface of the casing on which the first functional section is disposed, and opposite to the second surface on which the second functional section is disposed. The third side is equipped with a retractable antenna that is commonly used for all electronic devices and can be rotated twice, making it easy to use not only when using a television receiver but also when using a radio receiver. The aim is to realize an antenna device for an excellent composite electronic device.

An example of this will be described below with reference to FIGS. 6 to 9.

In the figures, the same items as in FIGS. 1 and 2 are designated by the same numbers, and their explanations will be omitted.

Figure 6 shows the state when operating the radio receiver.
The figures each show the state in which the television receiver is operated. In the figure, 22 is a base, a power transformer,
It has a built-in power supply circuit consisting of a rectifier/smoothing circuit, voltage stabilization circuit, etc.

21 has a built-in television receiver circuit, a radio receiver circuit, and an electronic clock on the main body of the device, and a speaker 3.21 that is shared by the television receiver and the radio receiver is mounted on the first surface. A time display section 2' for an electronic clock and an indicator 4' for a radio receiver are installed. Further, the device main body 21 has the cathode ray tube 6 installed so that the image projection surface of the cathode ray tube 6 appears on a second surface that is substantially orthogonal to the first surface, and a TV channel selection knob 8° on this second surface. Indicators 6 and '11. for television receivers.
1 A UHF and VHF band switching knob 7 is also installed. Furthermore, the device main body 21 has a power switch/volume adjustment knob 9, a radio tuning knob 10, a radio band (AM
-FM) A switching knob 11 and a clock knob 12 are installed respectively, and a plurality of buttons 14 for setting the time are provided on a surface that is perpendicular to the first and third surfaces and facing the second surface. A retractable antenna 23 that can be expanded, contracted, and rotated is installed.

In the above configuration, the device main body 21 is rotatably attached to the base 22. The configuration of this rotating portion is shown in FIG. 9. The device main body 21 is rotatably attached to the base 22 by two plate-shaped swing arms 31 and 32. That is, both ends of the two swing arms 31 and 32 are rotatably connected to the base 229 and the device 21.

Figure 6 shows the state in which the radio receiver is ready for operation.
At this time, the first surface on which the speaker 39 time display section 2' and radio receiver indicator 4' are installed faces forward. In this state, the user can listen to the radio broadcast of a desired station by operating the power switch/volume adjustment knob 9 and the channel selection knob 1o. Of course, at this time, the electronic clock is also operating, and the time display section 2' indicates the current time. Furthermore, by extending the retractable antenna 23, it can be operated as an FM antenna. On the other hand, looking at the cathode ray tube 5 in this state, its image projection surface faces downward and faces the base 22;
The cathode ray tube 5 can be protected, improving safety. When listening to AM broadcasts with a radio receiver, the retractable antenna 23 shrinks into the housing of the device body 21, resulting in an excellent design, and also prevents other objects from getting caught on the antenna. There is no risk of damage. When listening to FM broadcasts, use antenna 2.
By pulling the number 3 decorative beads 23a and extending the element 23b, the element 23b becomes extendable and rotatable like a general one, and exhibits an antenna function like a television receiver. Therefore, in the previously proposed method, special electronic components in the y-antenna input signal circuit used can be eliminated.

If you wish to watch the television receiver next time from this state, rotate the main body 21 of the device relative to the base 22 in the direction of arrow A, and as shown in FIG. Indicator 6 and VHF.

The second side on which the USU F band switching knob 7 is installed faces the front. When the power switch is turned on and the device main body 21 is rotated, the operation automatically switches from radio receiver operation to television receiver operation, and further operates band switching knob 7 and tuning knob 8. By doing so, the television broadcast of the desired station can be received. Of course, the electronic clock continues to operate even in this state.

When using the antenna 23, it is necessary to pull out the ornament 23a and the base metal fitting 23b, the base metal fitting 23c, and the base metal fitting 23f so that they completely protrude from the guide pipe 23h.It is extendable and retractable in the same way as a general antenna, and can be rotated two times. It is set to .

Then, when the device main body 21 is rotated in the direction of arrow B relative to the base 22, the first surface on which the speaker 32 time display section 2' and radio indicator 4' are installed is facing forward again as shown in FIG. can be directed to.

According to this configuration, each indicator 4 is used in the usage state of the television receiver and the usage state of the radio receiver.
', 6 are located to face the front, and each operation function is independent, improving operability. In addition, two swing arms s1. ; s2 allows easy 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 21 is installed on the rotating shaft portions of the swing arms 31 and 32, the device main body 21 can be rotated more smoothly.

Next, the configuration of the retractable antenna 23 will be described in detail using FIG. 8. In the same figure, A is Niremen) 23b.

The base metal fitting 23c, two base metal fittings 23d, etc. are the guide pipe 23e.
Figure B is a plan view of the base metal fitting 23d pulled out so as to be located at the outermost end of the gyneid pipe 23e, and in normal use, the base metal fitting 23d is While located at the uppermost end of the guide pipe 23e, it rotates 3600 times around the circumference together with the element 23b and the like, and can be set at any desired position. element 23
b is composed of a plurality of circumferential pipes having different diameters. There is a decorative ball 23a at the tip of the pipe in the center.
are fitted and fixed. The tips of each pipe are embossed inward to prevent the inner pipe from protruding outward. Although not shown, a fitting slide spring is also used for this purpose.

Further, at the other end of the outermost pipe, the flat protruding piece of the base metal fitting 23c is fitted into the fitting recess of the base metal fitting 2sd, and by using a flat washer (not shown) and a tightening screw (not shown). Connect rotatably. In order to move smoothly within the guide pipe 23e, the base metal fitting 2ad has a structure in which it is in contact with the inner peripheral surface of the guide pipe 23e with a slide spring (not shown) interposed therebetween, and a part of the base metal fitting 2ad is completely attached to the guide pipe 23e.
The element 23b etc. can be expanded and contracted by protruding outward from e.

The shape is designed to take advantage of its rotatable function. The guide pipe 23e has one end subjected to a tightening process to prevent the base metal fitting 23d from protruding outward, while the other end has a guide metal fitting 23f.
are fitted and fixed. The guide fitting 23f forms an L-shaped fixed piece, and furthermore, a through hole for attaching the antenna is provided in the center of the fixed piece. Although details are omitted, a guide pipe 23. , e, and are attached to the housing by using screws that pass through the through holes of the guide fittings 23f. A guide pipe 23 is installed inside the housing of the device main body 21.
It is a simple structure that only requires a place for arranging the guide fittings 2af and the guide fittings 2af, and the antenna can be fixed with only one screw. When the antenna 23 is not in use, the parts other than the decorative beads 23a become an antenna device that is housed within the main body 21 of the device, so when the radio receiver is operated for receiving AM broadcasts, the exposed parts are visible. This also eliminates the drawback that the design aspect is compromised. Furthermore, to provide a composite electronic device at low cost and with high productivity that does not cause a decrease in sensitivity even if a multi-configured FM antenna input signal circuit is removed by using special electronic components for use in FM broadcast reception. It is something that can be done. All of the drawbacks of the previously proposed methods are resolved, and the practical effects of eliminating additional parts such as the lid are extremely large.

The most advantageous feature of the embodiment of the present invention is that it is possible to switch to the radio receiver usage state while the antenna 23 remains extended in the television receiver usage state. In the case of conventional methods and the methods proposed earlier, it was always necessary to retract the antenna, but in the unlikely event that the antenna was left extended and the operation was changed from TV to radio use. However, there is a drawback that the extended antenna's ornaments, etc., hit the user's face, making it extremely dangerous to use. On the other hand, in this example, by installing the antenna 23 in a retractable manner on a surface that is perpendicular to the surface on which the speaker 3 and the like are provided and opposite to the surface on which the cathode ray tube 4 is provided, the antenna 23 can be extended as described above. It is possible to rotate the main body of the device while keeping it in place.

In the above embodiment, a case was described in which a television receiver, a radio receiver, and an electronic clock were 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 wireless electronic devices are incorporated in one housing, and at least the main functional parts of each are arranged on two orthogonal surfaces of the housing. is rotatably installed so that the surface on which the functional section is arranged faces the front according to the usage state, and one functional section of the casing is orthogonal to the first surface on which the functional section is arranged and the other functional section is arranged so that the surface thereof faces the front. By installing an antenna that operates commonly to each electronic device on the third surface opposite to the second surface on which the parts are arranged, each functional part of each electronic device can be operated in its respective usage state. Operability is improved because the front face is now facing forward. In addition, by installing the housing so that it can be rotated, it is possible to easily switch from the usage state of one electronic device to the usage state of another electronic device, and it also expands the functionality of the antenna and improves operability. This makes it possible to provide an antenna device that is excellent and highly safe.

[Brief explanation of drawings]

! -11. FIG. 2 is a perspective view showing the state of use of an electronic device that integrates a television receiver, a radio receiver, and a nine-view meter;
FIG. 3 is an exploded perspective view of an antenna device for a composite electronic device proposed prior to the present invention, FIGS. 4 and 5 are perspective views showing the device and equipment equipped with the device in use, and FIG. 7 is a perspective view of an antenna device for a composite electronic device according to an embodiment of the present invention, FIG. 7 is a perspective view of the same antenna device in a usage state different from that shown in FIG. 6, and FIG. 8 is a configuration of an antenna used in the present invention. Figure A is a plan view of the element housed in the guide pipe, B is a partially cutaway plan view of the antenna in use, and Figure 9 is a schematic diagram of the rotation mechanism and antenna of the composite electronic device. FIG. 3 is a side view showing the configuration. 2'...Time display section, 3...Speaker, 4'...Radio indicator, 5...
... Cathode ray tube, 6 ... TV indicator, 8 ... TV channel selection knob, 9 ... Power switch and volume adjustment knob, 10 ...・Radio tuning knob, 21...Device body, 22...
...Base, 23...Antenna, 23a...
... Decorative ball, 23b... Element, 23c...
...Base metal fitting, 2sd...Base metal fitting, 23e
...Guide pipe, 23f...Guide metal fittings, 31.32...Swing arm. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 13 Figure 3 q Figure 4 Figure 5 Figure 6

Claims (3)

[Claims] (1) At least two different types of wireless electronic devices are incorporated into one housing, and the first . At least the main functional parts of each of the wireless devices are arranged on the second surface, and the first surface or the second surface on which each functional part is arranged faces the front depending on the state of use of the case. and a retractable antenna that operates commonly for each wireless electronic device on a third surface perpendicular to the first surface and opposite to the second surface of the housing. An antenna device for a composite electronic device characterized by being installed. (2) One of the wireless electronic devices is a television receiver, a cathode ray tube and a television indicator are installed on the second surface of the casing, and the second surface on which the cathode ray tube, etc. is installed is An antenna device for a composite electronic device according to claim 1, which is configured to face downward when the wireless electronic device is used. (3) One wireless electronic device is a radio receiver, the other wireless electronic device is a television receiver, a radio indicator and a video signal are arranged on the first side of the housing, and the second wireless electronic device is arranged on the first side of the housing. A base is provided on the surface of which a cathode ray tube, a television indicator, and an operation section are disposed, and a built-in power supply circuit for supplying power to the television receiver and radio receiver. An antenna device for a composite electronic device according to claim 1, wherein the housing is rotatably provided.