JPS6242551Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a case for high-frequency equipment in which various high-frequency circuits such as an amplifier circuit and a converter circuit are housed.

Conventionally, a configuration is known in which an operation member such as a knob or a test connector is provided inside the case body, and a through hole with a rotating lid is provided in the case to operate this from the outside (for example, in practice) 1978-
157109, Utility Model Publication No. 52-56727). However, since the above-mentioned lid is an opening/closing lid that pivots at one point, it has the serious drawback of allowing water to seep in when wind and rain blow on the lid, which is a drawback that it cannot be used outdoors at all. .

Therefore, the present invention makes it possible to easily remove the small lid attached to the hole for operating the above-mentioned operating member or connector provided inside the case body, and also prevents loss of the lid removed during the above-mentioned operation. The purpose of the present invention is to provide a case for high frequency equipment that can prevent the loss of the lid, has good watertightness after the lid is attached, and can maintain the loss prevention effect of the lid over a long period of use. .

The drawings showing the embodiments of the present application will be described below. In FIGS. 1 to 4, reference numeral 1 denotes a converter of an SHF receiver shown as an example of high-frequency equipment, and is fixed to an antenna main body 2 of the receiver with a set screw 3. In this converter 1, reference numeral 4 denotes a case body, which is made of aluminum, for example. In this case body 4, 5 is a support column erected from the inner surface of the case body, 6 is a through hole for operation, and is bored at a position facing an operation member to be described later. A female thread 7 is formed.

Next, reference numeral 8 shows a high-frequency electronic circuit housed in the hollow part of the case body 4, which includes a circuit board 9 fixed to the support column 5 with a threaded rod as well as a large number of circuit elements 10 attached to the circuit board 9. It consists of Note that 11 is a circuit element to be adjusted, and a variable resistor is shown as an example. Reference numeral 11a denotes its rotation axis, which is shown as an example of an operating member.

Next, reference numeral 12 denotes a lid, which is made of aluminum and has a size sufficient to close the through hole 6 as shown in the figure. Reference numeral 13 indicates a male thread, which is formed to be screwed into the female thread 7. Reference numeral 14 indicates a fitting groove formed on the surface side of the lid body 12. 15 indicates an O-ring for waterproofing.

Next, 16 indicates a connecting member, in which 17
is a string made of synthetic resin material (for example, nylon or polyethylene). Reference numeral 18 denotes a slip-out prevention bead, which is fitted into a recess 20 formed on the back surface of the lid body 12 (the surface facing the hollow part of the case body), and then the periphery of the recess 20 is caulked, and the caulking portion 21 prevents it from coming off. It is arranged so that it is done. As is clear from this structure, the lid 12 and the string 17 can rotate relative to each other. 19 indicates a retaining piece. Reference numeral 22 denotes a fastening piece, which is made of the same material as the string 17. Reference numeral 23 denotes a fitting hole into which the support column 5 is inserted. Reference numeral 24 denotes a small through hole, which is formed in a size such that the retaining piece 19 can be caught therein to prevent the cord 17 from being pulled out.

When it is desired to operate the operating member 11a in the structure described above, the lid 12 is rotated by applying, for example, a screwdriver to the fitting groove 14 of the lid 12 in the state shown in FIG. , remove this from the case body 4 as shown in FIG. After that, the operation member 11a
perform operations.

When the operation is completed, the cord 17 is inserted into the case body through the through hole 6 again, and the lid 12 is screwed into the through hole 6.

Next, FIG. 5 shows a different embodiment of the present invention, in which a slide switch operating knob 31 is provided as an operating member. Further, the fastening piece 22e of the connecting member 16e is fastened to the support column 5e at a position above the through hole 6e.

It should be noted that the same reference numerals as those in the previous figure are given the same reference numerals as those in the previous figure, and the letter "e" is added to the parts that are functionally the same or equivalent to those in the previous figure, and redundant explanations are omitted.

Also, in the following figure, the same concept is used, and the alphabet f is added to omit the redundant explanation.

Next, FIG. 6 shows an example in which a connector for checking the level etc. is provided. For level checking, a corresponding plug is inserted through the operating hole 6f and connected to measure the level.
After completing the level check, remove the plug from the connector, recover it, and cover the operating hole 6f.

As described above, in this invention, the case body 4 is provided with a through hole 6 for operating the operating member or for connecting/disconnecting the connector, and the through hole 6 is provided with the cover body 1.
2 is removably screwed on, so when you want to perform operation work, you can easily turn the lid body 12 and remove it to open the operation hole 6, and the work is completed. Then, the lid body 12 can be screwed again to close the through hole 6 with high watertightness, and the operation work of the operating member can be started and finished extremely easily and quickly.

In addition, since the lid 12 can be left in the through hole 6, it is possible to eliminate the risk of dust accumulating on the outdoor side of the lid 12 and corroding the lid.
It also has the effect of extending its lifespan even when used outdoors.

Moreover, when the lid 12 is removed for the above-mentioned work, the lid 12 can be held in place by the string 17, which has one end connected to the case body 4 and the other end connected to the lid 12. This is highly effective in preventing accidents such as losing the lid 12 during the above-mentioned work.

Furthermore, since the string 17 has one end connected to the inner surface of the case body 4 and the other end connected to the inner surface of the lid 12, the through hole 6 is closed with the lid 12 after the above work is completed. Sometimes, the string 17 is attached to the case body 4.
By storing it inside, it can be protected from wind, rain, and sunlight, and it also has the effect of preventing the cord 17 from tearing due to damage, allowing it to be used for a long time.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a perspective view of the converter, FIG. 2 is a diagram showing the relationship between the lid and the connecting member, FIG. 3 is a partially cutaway perspective view of the converter, and FIG. 4 is a perspective view of the converter. The figures are longitudinal sectional views of the same, Figures 5 and 6.
The figures are partially cutaway perspective views showing different embodiments. 4...Case body, 6...Through hole, 7...Female thread, 12...Lid, 13...Male thread, 11a...
Operation member, 17... string.

Claims (1)

[Scope of utility model registration request] In a hollow case body that has an operating member or connector inside, a through hole for operating the operating member or for connecting and separating the connector is bored in the wall surface facing the operating member or connector, and the inner circumferential surface of the through hole is for high frequency equipment, wherein a female thread is formed in the through hole, and a lid body is removably screwed into the through hole, the lid body having a size that can close the through hole and a male screw that can be screwed into the female screw. In the case, one end of a string is connected to the inner surface of the case body, and the other end of the string is connected to a position facing the hollow part of the case body in the lid body, so that the lid body is connected to the case body. When the lid body is separated from the through hole of the case body, the string body is pulled out through the through hole, and when the lid body is screwed into the through hole of the case body, the cord body is stored in the hollow part of the case body. A case for high frequency equipment characterized by: