JPS6141319Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust cap used to prevent dust, water droplets, etc. from entering external telephone jacks, etc. of portable communication equipment.

FIG. 2 is a partial sectional view showing the structure of a conventional BNC plug.

Conventionally, the dust cap that covers the BNC connector is used when attaching the external handset connector 3' to the operating surface of the portable communication device 1', as shown in Figure 2.
Insert the mounting ring 2'a of the dust cap 2' between the connector seat 3'a of the external handset connector 3' and the casing of the portable communication device 1', and tighten together with the nut 7 from the inside. The structure was such that In this structure, when using an external handset, the dust cap 2' remains detached from the connector 3' and protrudes outside the operating section of the portable communication device 1', which often gets in the way during operation. Generally, dust caps are made of soft plastic or rubber, so they can easily get caught on surrounding objects when carried, and if they break, the external handset plug will be disconnected.
It was not easy to replace the dust cap 2' because it was fastened together with the dust cap 2'. Furthermore, in order to attach the dust cap 2' to the portable communication device 1', first pass the mounting ring 2'a of the dust cap 2' through the external handset connector 3' from inside the casing of the portable communication device 1'. Since the wire rod 8 is wired to the printed board 9 after passing through the washer 6 and fixing it with the nut 7, it is very troublesome to install the dust cap 2', and it is difficult to assemble and wire the portable communication device 1'. In addition, since the dust cap 2' is attached, the dust cap 2' hangs out and becomes a nuisance, impairs work efficiency, and has drawbacks such as requiring time and man-hours.

The purpose of this invention is to eliminate the above-mentioned drawbacks, and its purpose is to attach the dust cap to the antenna BNC connector on the operating surface of a portable communication device. To provide a rotary dust cap which can be easily attached and replaced, and which can fix the dust cap which becomes a nuisance when using an external handset.

In order to achieve the above object, the rotary dust cap according to the present invention is a dust cap that prevents dust from entering the external handset connector of a portable communication device, etc., which is located on the same operation surface as the BNC connector for the antenna. In the cap, the dust cap body, a mounting ring having an inner diameter that is approximately the same as the outer diameter of the antenna BNC connector, and a notch that escapes the pin of the antenna BNC connector, and the dust cap body and the mounting ring are integrated. the dust cap body is rotatably attached to the antenna BNC connector by loosely inserting the mounting ring into the antenna BNC connector, and is removed from the external handset connector. The dust cap body is configured to be able to be attached to a cylindrical dust cap holder provided on the rotation locus drawn by the dust cap body.

According to the above structure, the object of the present invention is completely achieved.

Hereinafter, the present invention will be explained in more detail with reference to the drawings.

FIG. 1 is a diagram for explaining an embodiment of a rotary dust cap according to the present invention. This figure shows a perspective view of a portable communication device, which has a BNC connector 4 for an antenna and a connector 3 for an external handset on its upper operation surface. The dust cap 2 integrally bridges the dust cap body 2a that is attached to the external handset connector 3, the mounting ring 2b that is loosely inserted into the antenna BNC connector 4, the dust cap body 2a, and the attachment ring 2b. It is composed of connecting parts that connect. The dust cap main body 2a has the same shape as the conventional one. Also, the inner diameter of the mounting ring 2b is slightly larger than the outer diameter of the BNC connector 4 for the antenna.
Grooves 2c are provided at two locations on the inner edge for the pins of the BNC connector 4 for the antenna to escape. Connecting part 2
Mounting ring 2c integrally connected by d
The distance between the BNC connector 4 and the dust cap main body 2a is the same as the distance between the BNC connector 4 for the antenna and the connector 3 for the external handset.

Mounting ring 2 on the operating surface of dust cap 2
Complete by simply inserting the dust cap body 2.
A is rotatable around the antenna BNC connector 4. When no external handset is attached to the external handset plug 3, the dust cap main body 2a is attached. A cylindrical dust cap receiver 5 having the same diameter as the external handset connector 3 is further provided on the operating surface of the portable communication device. This dust cap holder is made by integral molding with the housing, and its installation position is set at the radius of the distance between the antenna BNC connector 4 and the external handset connector 3, and with the antenna BNC connector 4 as the axis. It is on a coaxial circle. When an external handset is used and the dust cap main body 2a is not needed, it is rotated around the antenna BNC connector 4 and placed over the dust cap receiver 5. The dust cap holder of this embodiment is formed around the earphone terminal into a cylindrical shape having the same diameter as the external handset connector 3, and also has the function of protecting the earphone terminal. When removing the dust cap 2, it can be easily removed by aligning the notch 2c of the mounting ring 2b with the pin 4a of the antenna BNC connector 4 and pulling it out. In general use, the dust cap 2 will not fall off because the mounting ring 2b is always under the antenna. Furthermore, even if the antenna is not attached, it will not easily fall off under normal conditions.

As explained above, the rotary dust cap according to the present invention is not left unplugged from the connector when using an external handset, but is rotated and fixed to another receiver, so that the user can operate the portable communication device. It is less likely to get in the way or break due to getting caught on surrounding objects when carrying, and even if it breaks, it can be easily replaced with a new one by simply inserting the dust cap's mounting ring into the BNC connector for the antenna. can be exchanged. It also has excellent practical features, such as improving work efficiency when assembling and wiring portable communication equipment.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of a rotary dust cap according to the present invention, and FIG. 2 is a sectional view showing the structure of a conventional dust cap. 1, 1'...Portable communication device, 2, 2'...Dust cap, 2a...Dust cap body, 2'
a, 2b...Mounting ring, 2c...Notch, 2d
... Connecting part, 3, 3' ... External handset connector,
3'a...Connector seat, 4...BNC connector for antenna,
4a...Pin, 5...Dust cap holder, 6...
Watshiya, 7... Nut, 8... Wire rod, 9... Printed board.

Claims (1)

[Scope of utility model registration request] In a dust cap that prevents dust from entering the external handset connector of a portable communication device that is on the same operation surface as the BNC connector for the antenna, the dust cap itself and the outside of the BNC connector for the antenna are BNC for antenna with inner diameter almost same as diameter
It consists of a mounting ring with a notch that escapes the pin of the connector, and a connecting part that integrally connects the dust cap main body and the mounting ring, and the antenna can be attached by loosely inserting the mounting ring into the BNC connector for the antenna. The dust cap body is rotatably attached to the BNC connector for the external handset, and the dust cap body removed from the external handset connector can be attached to a cylindrical dust cap holder provided on the rotation trajectory drawn by the dust cap body. A rotary dust cap with the following features.