JP3058843B2 - Antenna structure for wireless remote control - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna used for opening and closing a building opening and closing device such as a shutter by remote control.

[0002]

2. Description of the Related Art Usually, an antenna element of a radio remote control antenna receives a radio wave transmitted from a remote controller, excites the radio wave with the antenna element, and receives an excited electric field via a coaxial cable or the like. To the machine.

In particular, since a wireless remote control antenna used for an architectural opening / closing device such as a shutter is installed outdoors, it is easily affected by climate and weather such as exposure to wind and rain.

[0004] A conventional wireless remote control antenna will be described with reference to FIG.

[0005] In Fig. 9, 1 indicates an antenna element, and 2 indicates an antenna support block. The antenna support block 2 has a hexagonal prism whose upper end is tapered, a screw hole (not shown) is formed in the bottom surface, and the antenna element body 1 extends from the tip of the antenna support block 2. The antenna element 1 and the antenna support block 2 constitute an antenna element 3.

One end of the coaxial cable 4 is connected to a receiver (not shown) via an antenna plug (not shown), and the other end of the coaxial cable 4 is connected to the coaxial cable 4 and the antenna element 3. Are connected by soldering or the like. The connector 5 is adapted to be screwed into a screw hole of the antenna support block 2.

A mounting base 6 for mounting the antenna element 3 is a metal plate bent in an L-shape at a required location, and has a mounting hole 7 at a required location.

When the antenna element 3 is installed, the connector 5 of the coaxial cable 4 is connected to the mounting base 6.
After the nut 9 is screwed to the connector 5 with the washer 8 interposed therebetween and the connector 5 is fixed to the mounting base 6 from the back side, the antenna support block 2 is attached to the connector 5. Screw.

Radio waves received by the antenna element 1 of the antenna element 3 are transmitted to the receiver (not shown) via the connector 5 and the coaxial cable 4.

[0010]

However, in the above-described conventional wireless remote control antenna structure, the antenna element 1,
Antenna support block 2, coaxial cable 4, connector 5
Are all separate parts, the number of parts is large, the connection between the antenna element 1 and the antenna support block 2, the coaxial cable 4
The number of man-hours such as connection by soldering between the connector and the connector 5 is large and the work is complicated. In addition, it is inconvenient to transport the antenna element 3 and the coaxial cable 4 if the antenna element 3 and the coaxial cable 4 are assembled on the mounting base 6 in advance. Met. In addition, deterioration due to aging, particularly the antenna support block 2 and the connector 5, which are metal parts, are susceptible to external environmental changes such as climate and weather, and may cause rust. A defect such as a defect has occurred.

The present invention has been made in view of the above circumstances, and has as its object to provide a wireless remote control antenna structure which is reduced in the number of parts and work steps and is not affected by environmental changes such as construction and weather.

[0012]

SUMMARY OF THE INVENTION According to the present invention, a net of a coaxial cable is folded back to expose a core, the net and the core are used as an antenna element, and the net is covered with a synthetic resin tube. , Insert the core wire into the antenna cover,
Form a small-diameter holder at the lower end of the antenna cover,
Press the coaxial cable into the holder section and
A fixing ring is fitted around the coaxial cable, and the coaxial cable and the
This is related to the antenna structure for wireless remote control that integrates the antenna cover and the antenna.The core wire and the net wire of the coaxial cable form the antenna body, so the number of parts is small, and the number of connection points is small, so the number of work steps is reduced. The element body is integrated with the coaxial cable, there are few connection points, construction errors are eliminated, and the core wire is covered with an antenna cover, and the mesh wire is covered with a synthetic resin tube, so that the environment, such as climate, weather, etc. Unaffected by change.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 15 denotes an antenna element,
Reference numeral 6 denotes a coaxial cable. A core wire 17 extends from one end of the coaxial cable 16, and the wire 20 covering the core wire 17 is folded to cover the tip of the coaxial cable 16. It is covered with a synthetic resin tube 22 such as an insulating tube, preferably a heat-shrinkable synthetic resin tube. Further, the core wire 17 is inserted into the antenna cover 18 and the coaxial cable 16 is inserted.
Is pressed into the antenna cover 18. Thus, the core element 17 and the mesh line 20 form an antenna element, and the antenna element and the antenna cover 18 form the antenna element 15.

An antenna plug 23 is attached to the other end of the coaxial cable 16, and the coaxial cable 16 is connected to a receiver (not shown) via the antenna plug 23.

The upper end of the antenna cover 18 is closed,
A core wire insertion portion 24 having a shape gradually increasing in diameter from the center portion to the lower end portion is provided. The core wire 17 of the coaxial cable 16 is accommodated in the core wire insertion portion 24.
A small-diameter holder portion 25 is formed below the core wire insertion portion 24, and a flange 27 is formed between the core wire insertion portion 24 and the holder portion 25. A groove 26 is formed between them. The flange 27 is chamfered, and a projection 28 protrudes from the center of the chamfered portion. The holder part 2
5 is fitted with a cable fixing ring 29.

An antenna mounting hole 31 is formed at both ends of the mounting base 19 which is a metal plate material and is bent in an L-shape at a required position. A part of the antenna mounting hole 31 is cut off, and the remaining portions of the end of the mounting base 19 where the antenna mounting hole 31 is cut off are antenna support pieces 32 and 33.

Core wire 1 extending from the coaxial cable 16
7 into the core wire insertion portion 24, press-fit the coaxial cable 16 into the holder portion 25, fit the cable fixing ring 29 into the holder portion 25, and connect the coaxial cable 16 and the antenna cover 18 to each other. Integrate.

In order to attach the integrated coaxial cable 16 and the antenna cover 18 to the mounting base 19, as shown in FIG.
9 in parallel with the antenna cover 18
Insert from the width direction. After the antenna cover 18 is completely inserted, the antenna cover 18 is rotated 90 degrees, and the antenna support pieces 32 and 33 are fitted into the grooves 26 (see FIG. 8B).

The antenna cover 18 is supported and fixed by the mounting base 19.

The core wire 17 and the net wire 20 of the coaxial cable 16
Is used as an antenna element, the coaxial cable 16 and the antenna element are integrated, the number of components is reduced, and connection work such as soldering between the antenna element and the coaxial cable 16 becomes unnecessary, and the number of work steps is reduced. In addition, since the transport of the coaxial cable 16 to the installation place is easy, and the distal end of the coaxial cable 16 is press-fitted into the antenna cover 18, the work of attaching the coaxial cable 16 to the mounting base 19 is easily performed via the antenna cover 18. I can do it. Furthermore, since the core wire 17 of the coaxial cable 16 is covered with the antenna cover 18 and the mesh wire 20 is covered with the synthetic resin tube 22, the infiltration of rainwater and the like is prevented, and it is affected by changes in the external environment such as climate and weather. And deterioration of antenna performance is prevented.

[0022]

As described above, according to the present invention, the core wire and the net wire of the coaxial cable serve as the antenna element, so that the number of parts is small and the number of working steps is reduced. Since the antenna element is integrated with the coaxial cable and covered with an antenna cover and a synthetic resin tube, no work such as soldering is required. It has excellent effects such as being hardly affected.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view showing the first embodiment.

FIG. 3 is a right side view showing the first embodiment.

FIG. 4 is a front view of the coaxial cable used in the first embodiment.

FIG. 5 is a front view of the coaxial cable used in the first embodiment.

FIG. 6 is a front view showing the first embodiment.

FIG. 7 is an enlarged view taken along the line AA of FIG. 6;

FIGS. 8A and 8B are explanatory diagrams of an operation when the antenna element according to the embodiment is mounted on a mounting base.

FIG. 9 is an exploded perspective view showing a conventional example.

[Explanation of symbols]

 Reference Signs List 15 antenna element 16 coaxial cable 17 core wire 18 antenna cover 19 mounting base 20 mesh wire 22 synthetic resin tube 24 core wire insertion part 25 holder part 26 groove 27 flange 28 protrusion 29 cable fixing ring

Claims (1)

(57) [Claims] 1. A wire of a coaxial cable is folded back and a core wire is exposed, the mesh wire and the core wire are used as an antenna element, the mesh wire is covered with a synthetic resin tube, and the core wire is covered with a synthetic resin tube.
Insert it into the antenna cover and attach it to the lower end of the antenna cover.
A small-diameter holder is formed, and the coaxial cable is connected to the holder.
Press-fit into the holder and externally fit the fixing ring to the holder
And the coaxial cable and the antenna cover are integrated.
Wireless remote control antenna structure, characterized in that the.