JPS6328545Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connector conversion device for public listening equipment in the UHF band and VHF band.

In general, there are two types of connectors for public listening equipment in the UHF band and VHF band: the fitting type and the F type. As shown by reference numeral 1 in FIG. 1, the fitting type connector is provided with a male threaded portion 2 at one end, and this male threaded portion 2 is used for mounting near the fitting portion of the housing 3 of the public listening device. Screw hole 4
By screwing into the housing 3, the fitting type connector 1 is fixed to the housing 3 and connected to the connecting portion. The F-type connector has a male threaded portion 6 at one end, as shown by reference numeral 5 in FIG. 2, and a portion of this male thread 6 is cut off, as shown by reference numeral 7, to have a non-circular cross section. A similar non-circular mounting hole 8 into which the above-mentioned one end can be fitted is bored in the housing 3 of the public listening device to which the F-type connector 5 is attached, near the connection part of the F-type connector. Combined above F
A washer 9 is inserted into one end of the type connector 5,
and the nut 10 is screwed together to form the F-type connector 5.
is fixed to the housing 3 and connected to the connecting portion. In FIGS. 1 and 2, reference numeral 11 indicates a connection pin of the connectors 1 and 5, which are connected to an electric circuit (not shown) at the connection portion.

As mentioned above, the fitting type and F type connectors have different specifications, so a corresponding connector connection and mounting structure is required. Conventionally, a dedicated connection and mounting structure for each connector was manufactured independently. Alternatively, a method has been adopted in which a connection mounting structure corresponding to each connector is provided in one housing, and connection is made by selecting the connector according to the connector to be used.

By the way, in the former method, it is necessary to commercialize the connector connection and mounting structure corresponding to each connector according to the type of connector, and in the latter method, it is necessary to create an electrically open line in the connection and mounting structure of the connector that is not used. The state is the same as when the terminal is connected, and it is electrically unstable. In particular, problems arose when it was shared with the UHF band, and there was a risk that it would be difficult to use.

This invention was made in view of the above points, and is a connector conversion for public listening equipment that allows connection of fitting type and F type connectors in one housing, and can be manufactured at low cost due to its simple configuration. It provides equipment.

An embodiment of the present invention will be described in detail below with reference to FIG. In FIG. 3, reference numeral 3 denotes the above-mentioned casing, and the casing has a substantially oval-shaped mounting hole 8 into which one end of the above-mentioned F-type connector 5 can be fitted. Furthermore, fitting holes 12a and 12b are bored near the outer periphery of this mounting hole 8. Reference numeral 13 denotes an adapter, and one end thereof has a part that can be connected to the connection part of the F-type connector 5, that is, a male screw part 6' and a cut-off part 7' similar to the above, and an oval-shaped mounting hole 8.
and the fitting holes 12a, 12.
protrusions 14a and 14b that can be fitted into the connector b, and the other end is provided with a part that becomes a connection attachment part of the fitting type connector 1, that is, a female thread part 15 into which the male thread part 2 can be screwed. . 16
is a connecting pin, and when the male threaded portion 2 of the fitting type connector 1 is screwed into the female threaded portion 15, the connecting pin 11 is electrically contacted;
The connecting pin 11 is connected to the electric circuit via the connecting pin 16 .

In the above-described connector conversion device for public listening equipment, when the fitting type connector 1 is used, the male screw portion 6' and the protrusion 1 of the adapter 13 are inserted into the oval-shaped mounting hole 8 and the fitting holes 12a, 12b, respectively.
4a and 14b, and then insert the washer 9 into the male threaded part 6' and screw the nut 10 to attach the adapter 13 to the housing 3. Then, connect the male threaded part 2 of the fitting type connector 1 to the female threaded part. By screwing into the part 15, the fitting type connector 1 is mechanically attached to the housing 3 via the adapter 13, and the connecting pin 11 is electrically connected to the electrical circuit via the connecting pin 16 of the adapter 13. connected to. When using the F-type connector 5, remove the adapter 13 from the housing 3, screw the male screw part 6 of the connector 5 into the oval-shaped hole 8, insert the washer 9 as described above, and tighten the nut 10. By screwing together, the F-type connector 5 is attached to the housing 3.

As mentioned above, the present invention uses an adapter that has a male screw part similar to the F type connector at one end and a fitting part for the fitting type connector at the other end. The connector can be used by converting the connector as desired.In particular, the fitting between the fitting hole of the housing and the protrusion of the adapter completely prevents the adapter from rotating relative to the housing, which prevents excessive rotation when installing a large diameter fitting type connector. As a result, the adapter can be stably and easily attached to the casing, since no rotational force or the like is applied to the male threaded portion 6'.

If the above-mentioned fitting hole and protrusion are not provided, the above-mentioned adapter may be forcibly turned when a fitting-type connector is attached to the adapter, which may cause the small-diameter male thread part to be twisted and damaged. However, in the present invention, this can be effectively prevented.

[Brief explanation of drawings]

Figures 1 and 2 are perspective views showing conventional examples;
The figure is a perspective view showing an embodiment of the present invention. 3... Housing, 6'... Male screw part, 8... Oval shaped mounting hole, 12a, 12b... Fitting hole, 13...
Adapter, 14a, 14b...Protrusion.

Claims (1)

[Scope of utility model registration request] In a fitting type and F type connector connection mounting structure used for public listening equipment, a fitting hole bored near the outer periphery of the F type connector connection mounting hole provided in the device housing, and one end of the F type connector connection mounting structure are provided. an adapter that is provided with a male screw portion that can be attached to the connection attachment hole of the connector and a protrusion that can be fitted into the fitting hole, and a female screw portion that constitutes the connection attachment portion of the fitting type connector at the other end; By connecting the fitting type connector to this adapter, the fitting type connector is connected to an electric circuit inside the device via the adapter, and the fitting type connector and the F type connector are connected by attaching and detaching the adapter. 1. A connector conversion device for public listening equipment, characterized in that it can be used for arbitrary conversion.