JPS58184804A - Rod antenna device - Google Patents

Abstract

PURPOSE:To fix a rod antenna and cabinets split into two as well, by connecting both rod antenna and antenna connecting metallic fixture electrically with one screw tightening work. CONSTITUTION:An antenna base 12a is inserted to a recess 13 of an upper cabinet 10, the tip of the base 12a is projected externally from a bottom hole 14, and in matching a hole 15c of a connecting piece 15b of an antenna connecting metallic fixture 15 mounted on a printed wiring board 17 fixed to a lower cabinet 11 to a hole 12b of the base 12a, a screw 16 is tightened from a screw hole 11d of the lower cabinet 11, a hole 15c of the piece 15b and the hole 12b of the base 12a to connect the rod antenna 12 and the antenna connecting metallic fixture 15. In screwing the screw 16 to the screw hole 12b of the base 12a, the upper and lower cabinets 10, 11 are fixed also.

Description

[Detailed Description of the Invention] The present invention relates to a rod antenna device for radio equipment, and an object of the present invention is to provide a rod antenna device that simplifies installation work, improves serviceability, and improves performance. .

Taking a portable composite electronic device as an example, a conventional example is shown in FIGS. 1 to 6. In the figure, 1 is a cabinet with a recess 3 that houses the base 2a of the rod antenna 2.
・A rectangular hole 4 is opened at the bottom of the four parts 3. 6 is the antenna connection fitting, as shown in Figure 3~
As shown in FIG. 6, a U-shaped portion 5a into which the tip of the antenna base 2a fits.

It consists of a lead connection piece part 5b formed by cutting out a part of this U-shaped part 5a, and collar parts 6c, 5c which are vertically protruding from both ends of the U-shaped part 6a. A screw insertion hole 5d is formed in a part of the U-shaped portion 5a, and
A lead connection hole 6e is provided at the tip of the lead connection piece 6b.

In the above configuration, when fixing the rod antenna 2 and the antenna connection fitting 6 to the cabinet 1, first place the antenna connection fitting 5 into the recess 3, and then shape the U-shaped part 6a and lead connection piece 6b into a rectangular shape. 1. In this state, insert the base 2a of the rod antenna 2 into the recess 3, and then insert the tip of the base 2a into the U-shaped part 6a of the antenna connection fitting 5.
Insert inside. At this time, the screw insertion hole 6d of the U-shaped portion 5a
The screw hole 2b of the antenna base 2a coincides with the screw hole 2b of the antenna base 2a, and both holes 2b and 5d coincide with the screw hole 1a provided in the cabinet 1, and the flanges 5c and 5 located on the bottom surface of the recess 3 coincide with each other.
c is held between the antenna base 2a and the antenna base 2a. Here, the antenna base 2a and the antenna connection fitting 5 are fixed to the cabinet 1 by screwing the screw 6 into the antenna base 2a through the screw hole 1a. Of course, the screw 6 may be screwed into the screw insertion hole 6d. Then, one end of a lead wire (not shown) can be connected to a cheese (not shown), and the other end of the lead wire (not shown) is connected to the lead connecting piece 6b by soldering or the like.

According to the F radiation means, the rod antenna 2 and the antenna connection fitting 6 could be fixed to the cabinet 1 with a single screw 6.

However, this configuration requires a process of attaching the rod antenna 2 and a process of electrically connecting the rod antenna 2 and the antenna input circuit, resulting in poor work efficiency.
Furthermore, the antenna connection fitting 5 is required separately, which increases the number of parts and increases the cost. Furthermore, in order to secure the cabinet to other items, a separate method must be used, which is inconvenient.

The present invention solves these drawbacks, and aims to simplify the installation work and improve performance.

An embodiment of the present invention will be described below with reference to FIGS. 6 to 10. In FIG. 6, the portable electronic device 60 is a composite radio device consisting of a television receiver and a radio receiver, and the upper cabinet 10 is divided into two parts.
and lower cabinet 11° and Niskajoy...1
8 is combined to form one □ housing. The upper cabinet 10, the lower cabinet 11, and the rod antenna 12 have a plurality of screws 16 (see FIG. In the example shown, 4 bottles) Niskat 7yo/18 for stool use
It is fixed in the fitted state.

FIG. 8 shows an exploded perspective view of the internal structure. The antenna base 12a of the rod antenna 12 is inserted from above into the recess 13 of the upper cabinet 10 with the screw hole 12b parallel to both side wall surfaces of the lower cabinet 11, and its position is regulated by the rib 11b of the lower cabinet 11 in the final assembled state. This makes it easier to align the screw 16 with the tapped hole 12b. At the rear end of the lower cabinet 11, there are various locking ribs (not shown) for fixing the printed wiring board 17, including ribs 11a, 11b, and 11c for temporarily holding the antenna connection fitting 16 attached to the printed wiring board 17. i is formed. The printed wiring board 17 along with the valley line electronic components (J
f (F tuner 17a, VHF, tuner 17b as well as antenna socket 17c.

Rigid printed wiring board section 17 on which antenna connection fitting 16 is mounted
It consists of a flexible/pull printed wiring board section 17bb which is divided into aa and electrically connects each section when assembled. A hole 11 for inserting a screw 16 is provided in the outer peripheral wall of the lower cabinet 11.
Holding boss 1 for fixing nut with 3 d and 16 screws
1e is provided at one location. Similarly upper cab;])
Each insertion hole 11 of the lower cabinet 11 is also provided on the outer peripheral wall of the lower cabinet 11.
A holding boss 10e and a screw hole 10d are provided at positions corresponding to the holding boss 11e and the holding boss 11e, respectively. However, since the threaded hole 12b provided in the base 12a of the rod antenna 12 functions as a fixing nut for the screw 16, the NAND holding boss is omitted at one location in the rod antenna mounting portion.

FIG. 9 is a plan view of the printed wiring board 17 fixed to the lower cabinet 11, and shows the UHF tuner 17a and VH
The F tuner 17b, the antenna socket 17C, and the antenna connection fitting 16 can be arranged on the printed wiring board 17 at a close distance from each other and can be connected with a half-HJ, thereby improving the characteristics of the rod antenna when in use. . Furthermore, each of the ribs 11a to 11C of the lower cabinet 11 is attached to the connecting piece 16b of the antenna connection fitting 16, which is fixed to the printed wiring board 17 with a part protruding outward from the printed wiring board 17.
printed wiring board 1 for position regulation and temporary holding.
This prevents the foil lifting defect of the copper foil pattern No. 7.

Note that 17d is a cathode ray tube.

Next, a method of assembling the rod antenna device will be explained using the side sectional view of FIG. 10 showing the main part configuration. rod antenna 1
2 and to connect the rod antenna 12 and the antenna connection fitting 15 by inserting the antenna base 12a into the recess 13 of the upper cabinet 1o and protruding the tip of the antenna base 12a to the outside of the recess 13 through the hole 14 on the bottom surface. , With the hole 15c of the connection piece 1sb of the antenna connection fitting 16 attached to the printed wiring board 17 fixed to the lower cabinet 11 aligned with the hole 12b of the antenna base 12a, insert the connection piece further from the screw hole 11d of the cabinet 11. 15
Screw 1 into hole 16C of antenna base 12b and hole 12b of antenna base 12a.
This is achieved by screwing together the parts 6 and 6. By screwing the screws 16 into the threaded holes 12b of the antenna base 12a, the upper and lower cabinets 10 and 11 can be fixed at the same time. In addition, 16
a is a soldered terminal of the antenna connection fitting 15 ○Here, when operating the rod antenna 12, the screw 16 may come off due to vibrations transmitted through the antenna connection fitting 15, or the foil of the soldered terminal 16a may be defective. Ribs 11a to 11C are provided on the lower cabinet 11 for the purpose of preventing this from occurring.
The antenna connecting fitting 16 also has a substantially U-shaped cross section, with a portion thereof protruding outward from the printed wiring board 17. Furthermore, the reason why the upper end of the connecting piece 16b of the antenna connecting fitting 16 is bent toward the outside of the housing is to guide the base 12a of the rod antenna 12 when it is inserted.

As described above, according to this configuration, the function of the fixing screw of the rod antenna 12 is expanded.

F cabinet) 10.11 fixing screw can be reduced by one': (It is possible to reduce the number of fixing screws in 10. There is no performance deterioration or disconnection due to wire routing.Furthermore, the lower cabinet 11
Since the temporary holding ribs 11a, 11b, and 11c attached to the rod antenna joint 16 restrict the position of the connecting piece 15b of the antenna connecting fitting 16, the screw 16 is inserted into the screw hole 12b of the rod antenna base 12a.
In the work of screwing together the connecting fittings 15 due to vibration,
It also has the effect of preventing foil lifting of the printed wiring board copper foil pattern. Also, cabinet 10.1
In order to attach the rod antenna 12 to the cabinet 10, the two divided cabinets 10 and 11 and the rod antenna 12 can be fixed with one screw without forming a separate holder, simplifying the assembly work. 0 In Figures 6 to 8, 21 is a cathode ray tube, 22 is a TV dial indicator, 23 is a TV channel selection hole, 24 is a foldable stand, and 25 is a TV that can be turned on and off. -Radio selection switch, 26 is radio station selection knob,
27 is a volume adjustment knob, 28 is a radio indicator, 2
9 is a hand strump.

As explained above, according to the present invention, tightening the screws two times electrically connects both the rod antenna and the antenna connection fitting, and not only fixes the rod antenna but also secures the cabinet divided into two parts. They can also be fixed to each other, improving workability, and can be constructed at low cost. Furthermore, by directly connecting the antenna input circuit of each tuner mounted on the printed wiring board to the rod antenna, the reception sensitivity is improved.

[Brief explanation of the drawing]

Fig. 1 is a front view of a conventional rod antenna device, Fig. 2 is a cross-sectional view of the same, and Figs. 3, 4, and 6 are front views, side views, and plan views of antenna connection fittings used in the device. , FIG. 6, and FIG. 7 are respectively external perspective views of a portable radio device to which a rod antenna device according to an embodiment of the present invention is applied;
FIG. 8 is an exploded perspective view showing the internal structure of a rod antenna device according to an embodiment of the present invention, FIG. 9 is a plan view of the main part of the same device, and FIG. 10 is a part showing the main part structure of the same device. FIG. 1o... Upper cabinet, 11... Lower cabinet, 11a, 11b, 11c... Position regulating rib, 11d... Hole, 12...・
・Rod antenna, 12a... Antenna base,
12b...screw hole, 13...recess, 1
4...hole, 16...antenna connection fitting, 16a...soldering terminal, 16b...
Connection piece part, 15c...hole, 16...screw, 17...printed wiring board, 17a...
UHF tuner, 17b...VHF tuner,
17C...Antenna socket, 18...
・Niskanjon. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4 Figure 6 Figure 7

Claims (1)

[Claims] A cabinet divided into two parts is provided, one cabinet is provided with a recessed part for storing the base of the rod antenna, holes are provided in the bottoms of the four parts, a printed wiring board is mounted on the other cabinet, and the antenna input of the printed wiring board is provided. The antenna connection fitting is fixed directly to the circuit, and the hole provided in the connection piece of this antenna connection fitting is retracted into the recess of one of the cabinets. Screw the screws together,
A rod antenna device characterized in that the rod antenna and both cabinets are fixed together, and the rod antenna and an antenna input circuit of a printed wiring board are electrically connected.