JPS6350804Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a semi-fixed volume support, and specifically aims to provide a semi-fixed volume support structure in which the semi-fixed volume attached to the panel surface of the device cannot be easily manipulated. be.

<Conventional structure> Semi-fixed volumes used in circuits that require adjustment operations in practical conditions generally have a driver insertion hole formed in the panel board, and the operating shaft is positioned opposite to this driver insertion hole. It can be mounted on a chassis etc. to do so.

<Disadvantages of the conventional method> Conventionally, the driver insertion hole was formed in the panel board, and the semi-fixed volume was operated through this driver insertion hole, so the driver insertion hole was present in the case of the device, and water etc. Even if the case is hung, water does not directly enter the inside of the case, which means that it cannot have a so-called drip-proof structure.

It is also conceivable to attach the semi-fixed volume directly to the panel board in order to achieve a drip-proof structure, but in this configuration, the operating shaft of the semi-fixed volume would be directly exposed to the outside. As a result, the operation shaft is easily touched by human hands, and there is a drawback that the setting position may be moved by mistake. Another disadvantage is that if a semi-fixed volume is directly attached to the panel surface, the appearance will be poor.

<Purpose of the invention> The purpose of this invention is to provide a semi-fixed volume support that is not easily touched by human hands and can make the case of the device drip-proof.

<Example of the invention> An example of the invention is shown in FIGS. 1 and 2. In the figure, 1 indicates a cylindrical support. This cylindrical support 1 has a male thread 1a on its outer peripheral surface and a flange 1b on one end thereof. 2 indicates nuts. The nut 2 is screwed into the male thread 1a of the cylindrical support 1, and the panel plate 3 is tightened between the nut 2 and the flange 1b, and the cylindrical support 1 is attached to the panel plate 3.

A semi-fixed volume 4 is screwed into the rear end side of the nut 2 to support it. At this time, the longitudinal dimension L of the nut 2 and the longitudinal dimension M of the cylindrical support 1 are set so that L>M so that the cylindrical support 1 and the semi-fixed volume 4 do not come into contact even when the nut 2 is fully tightened toward the panel plate 3. Select. The center hole 1c of the cylindrical support 1 is selected to be slightly larger than the outer diameter of the adjustment shaft 4a of the semi-fixed volume 4.

A disk-shaped lid 5 is attached to the front side of the flange 1b of the cylindrical support 1. This lid 5 is assembled by tightening a pin 6 installed on the front surface of the flange 1b.
Supports rotatably. For example, a recessed hole 7 is formed on the flange surface facing the pin 6 at an angle of 180 degrees, and a projection 8 is formed on the lid 5 so as to engage with this recessed hole 7 in the closed position.
form.

<Operations and Effects of the Invention> According to the semi-fixed volume support according to this invention described above, after the cylindrical support 1 is attached to the panel plate 3 with the nut 2, the semi-fixed volume 4 is screwed into the rear end of the nut 2. , a semi-fixed volume 4 can be attached to the rear end of the nut 2. Alternatively, the semi-fixed volume 4 may be attached to the rear end of the nut 2 in advance, and the nut 2 may be screwed onto the cylindrical support 1 in this state. In any case, by attaching the semi-fixed volume 4 to the rear end of the nut 2, the adjustment shaft 4a of the semi-fixed volume 4 is held in alignment with the axis of the center hole 1c of the cylindrical support 1.

Therefore, by rotating the lid 5 and opening the front side of the cylindrical support 1, the semi-fixed volume 4 can be opened from the outside.
The adjustment shaft 4a can be seen, and the adjustment shaft 4a can be rotated using a screwdriver.

The lid 5 elastically presses the portion where the protrusion 8 is formed by the pin 6 and the elasticity of the lid itself. Therefore, the protrusion 8 is elastically pressed against the recessed hole 7. As a result, the lid 5 will not easily rotate due to the engagement between the protrusion 8 and the recessed hole 7 simply by applying a rotation operating force to the lid 8.
To rotate the lid 5, the free end side of the lid 5 may be slightly lifted to disengage the protrusion 8 and the recessed hole 7, and then the lid 5 may be rotated.

Therefore, according to this invention, since the lid 5 cannot be easily rotated in the direction of opening, it is prevented that a person who does not know how to handle the lid 5 accidentally rotates the lid 5 and operates the semi-fixed volume 4 with a screwdriver. can.

Further, since the hole formed in the panel plate 3 is closed by the lid 5, even if liquid accidentally splashes on the panel plate 3, the liquid will not enter the inside of the case. Thus, a drip-proof mechanism can be obtained.

In addition, since the holes formed in the panel board 3 are closed by the lid 5, the appearance is not impaired.
A design effect that can improve the appearance of the case can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a sectional view for explaining an embodiment of a semi-fixed volume support according to this invention, and FIG. 2 is a front view thereof. 1... Cylindrical support body, 1a... Male thread, 1b...
Flange, 1c... Center hole, 2... Nut, 3...
...Panel board, 4...Semi-fixed volume, 4a...
Adjustment shaft, 5... Lid, 6... Pin, 7... Recessed hole, 8
……protrusion.

Claims (1)

[Scope of Claim for Utility Model Registration] A. A cylindrical support body with a male thread formed on its circumferential surface and a flange formed on one end; B. A female thread screwed into the male thread formed on the cylindrical support body. The cylindrical support body is supported by the panel plate by tightening the panel plate between the panel plate and the flange, and when the panel plate is tightened, the female thread is long so that it has an excess portion at the rear that is not screwed into the cylindrical support body. C. a nut that supports a semi-fixed volume in the surplus portion of the female thread; and C. a lid that is rotatably supported by a pin planted on the flange surface of the cylindrical support. A semi-fixed volume support.