JPH0641396Y2 - Antenna device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an indoor antenna device which is effective when a portable receiver such as a small crystal television (LCTV) is used indoors.

[Prior Art and its Problems] In a portable receiving device such as a small liquid crystal television, a dry battery having a predetermined capacity as a driving power source is generally built in the device body. As described above, in a portable receiving device using a dry battery as a driving power source, the receiving function is lost with the life of the dry battery, and a new dry battery must be replaced in order to continue the receiving function. In the case of a small liquid crystal television with a built-in battery having a relatively small capacity to improve portability, its image receiving function is limited to about 2 hours.

By the way, when such a portable receiving device, for example, a small liquid crystal television is used indoors, an indoor antenna device is normally used for high-performance reception, and an AC adapter power source is used for long-term image reception. However, when the liquid crystal television, the antenna device, and the AC adapter power supply are systematized in this way, when changing the viewing place in the room (for convenience such as changing the location of the outlet to which the AC adapter power supply is connected), those 3 There was a problem that it was inconvenient because people had to carry around with them one by one, and it was inconvenient if they were away from the outlet.

[Purpose of Invention] This invention was made in view of the above circumstances.
The purpose is to provide an antenna device that is designed to be convenient to move indoors when a portable receiving device such as a small liquid crystal television is used indoors with high performance and capable of receiving for a long time. To provide.

[Summary of the Invention] In order to achieve the above object, the antenna device according to the present invention is provided with a power supply for supplying radio waves and power to other receiving devices to the device body with an antenna facing upward from the device body. The main point is to provide the means and a battery housing portion for driving another receiving device, which can store at least a battery having a larger capacity than that of the driven receiving device itself.

[Embodiment] An embodiment of the indoor antenna device according to the present invention will be described below with reference to FIGS. 1 to 4.

In the figure, reference numeral 1 is a device main body in which left and right VHF rod antennas 2 and 3 and a UHF loop antenna 4 are attached. The apparatus main body 1 is a molded product made of synthetic resin and has a substantially square block body. The left and right rod antennas 2 and 3 are attached to the upper surfaces of both sides of the rear portion of the apparatus body 1 such that the inclination angles thereof can be changed in the left and right directions. Further, the loop antenna 4 is fixedly attached to the central upper surface behind the rod antennas 2 and 3.

In addition to the rod antennas 2 and 3 and the loop antenna 4, a battery storage portion 5 and a cord storage portion 6 which are formed in a concave shape are provided on the upper surface of the apparatus body 1, and the reception sensitivity and the like are adjusted on the front surface. A select switch 7 is provided.

The battery storage unit 5 includes, for example, a storage unit 12 that stores four dry batteries 8 to 11 in a parallel state and a storage unit 15 that stores two dry batteries 13 and 14 in a serial state, which are partition walls.
It is defined by 16. In this case, the output jack 17 for the 6V power source having the capacity of the four dry batteries 8 to 11 housed in the housing 12 and the four dry batteries 8 to 11 and the housing 15 housed in the housing 12 are An output jack 18 for a 9V power source, which uses the two stored dry batteries 13 and 14 as a power source capacity, is provided in a space 19 on the lower surface side of the apparatus main body 1. The power supply to these jacks 17 and 18 is performed by switching a regulator (not shown), and the selection of the jacks 17 and 18 is performed according to the receiving device using this antenna device. 2 in the figure
Reference numerals 9 and 30 denote positive and negative contact points provided in the storage sections 12 and 15, which are connected to the regulator. Such a battery housing 5 is closed by a plate-like lid 21 made of synthetic resin, which is attached to the upper surface of the apparatus main body 1 so as to be openable and closable. The lid 21 has protrusions 22 and 23 provided on the front side thereof correspondingly fitted into a groove (not shown) provided on the inner surface of the front wall 31 of the apparatus body 1, and the fitting portion is used as a rotation center. It is designed to rotate in the vertical direction. And
The battery accommodating portion 5 is closed by being fitted into the step portion 24 formed on the upper surface of the battery accommodating portion 5. In this way, the lid 21 that closes the battery storage portion 5 can be opened by inserting a finger into the notches 25 and 26 provided on the upper side and lifting it. Although the lid 21 shown here closes the battery storage portion 5, it also closes the cord storage portion 6 integrally. Even if the lid 21 is closed, the notch 25, You can pull out the code from 26.

The cord housing 6 is formed between the rod antennas 2 and 3 behind the battery housing 5, and the cord housing 6 includes an antenna cord 27 connected to the rod antennas 2 and 3 and the loop antenna 4, and an output jack. A power cord 28 connected to 17, 18 is stored. The antenna cord 27 and the power cord 28 are pulled out from the bottom of the cord storage portion 6, have a predetermined length, and are stored in the cord storage portion 6 in a small bundle as shown in the drawing.

The select switch 7 is for adjusting reception by combining radio waves received by the rod antennas 2 and 3 and the loop antenna 4 so that the directivity and sensitivity are optimized, and the rod antennas 2, 3 and It is connected to the loop antenna 4 and attached to the outer surface of the front wall 31 of the apparatus body 1. The select switch 7 is a slide switch, and can be slid left and right to move the rod antenna 2 and
If the radio waves received by 3 and the loop antenna 4 are fixed at a position where the directivity and the sensitivity are optimally mixed by the mixing circuit, a good image can be obtained on the screen of a liquid crystal television, for example.

When the indoor antenna device of the embodiment having such a configuration is used for reception when a small liquid crystal television is used indoors, the small liquid crystal television has a dry battery housed in the battery housing portion 5 of the indoor antenna device. 8 ~
It is possible to use 11 6V power supply or dry batteries 8-14 9V power supply, it is no longer necessary to use AC adapter power supply as in the past, and AC adapter power supply is used by using a large capacity battery such as A1 type. As in the case, it is possible to view for a long time (about 3 to 4 times the viewable time by a battery such as an AA battery built in itself). In this case, since the small liquid crystal television and the indoor antenna device are systemized, they can be easily moved when the viewing place changes in the room. Further, the small liquid crystal television may be mounted on the closed cover 21 on the upper surface of the device body 1 of the indoor antenna device and viewed in a state of being integrated with the antenna device.
It is also possible to pull out the antenna cord 27 and the power cord 28, which are bundled and stored in the cord storage portion 6, for a required length and place them in a place apart from the indoor antenna device for viewing. In addition, this antenna device changes the power capacity (6V or
9V), it can be widely used in various portable receivers, and the radio waves mixed by the mixing circuit can be adjusted to the optimum state in both directivity and sensitivity by the select switch 7. Therefore, good reception can be performed. Needless to say, this indoor antenna device can be used as an indoor antenna of an indoor television as usual, but even in that case, the device body becomes significantly larger than the previous one due to the provision of the battery housing. Since this does not cause any trouble, the indoor antenna device, which tends to be unstable in mounting due to the weight of the battery housed inside, increases in stability, which is a preferable state.

[Advantages of the Invention] As described above, the mounting antenna device according to the present invention is for supplying radio waves and power to another receiving device to the device body to which the antenna facing upward from the device body is attached. Since the supply means and the battery housing portion for driving another receiving device, which can store a battery having a capacity larger than that of at least the driven receiving device itself, are provided, the receiver is installed near the antenna device, for example. When used, the receiver that is supplied with radio waves and power from the antenna device can receive well for a long time with a battery having a larger capacity than the battery of the receiving device itself, and if the receiver is removed from the antenna device, reception is possible. It can also be used by itself.

Further, the mountable antenna device according to the present invention can be stably mounted because the battery is housed in the device body even though the antenna faces upward from the device body.

[Brief description of drawings]

The drawings each show an embodiment of the present invention. FIG. 1 is a perspective view of an indoor antenna device according to the present invention, and FIG.
FIG. 3 is a schematic cross-sectional view taken along line II-II of FIG. 3, FIG. 3 is a schematic plan view of the antenna device, and FIG. 4 is a schematic side view in which a part of the antenna device is cut away. 1 ... Device body, 2, 3 ... Rod antenna, 4 ... Loop antenna, 5 ... Battery compartment.

Claims (1)

[Scope of utility model registration request] 1. A device main body to which an antenna facing upward from the device main body is attached, supply means for supplying radio waves and power to another receiving device, and another receiving device provided in the device main body. A stationary antenna device for driving, comprising a battery housing unit capable of housing at least a battery having a larger capacity than a battery included in the driven receiving device itself.