JPS5824740Y2 - Panel instrument mounting structure - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a mounting structure for panel instruments.

Indicators, recorders, etc. are generally used by being attached to a panel board.

Instruments used by being attached to a panel board in this manner are generally referred to as panel instruments.

As is well known, the panel instrument has a flange on the front edge of the casing, and the panel plate is held between the flange and the tightening means attached to the casing, so that the panel instrument is supported on the panel plate. There is.

FIG. 1 shows an example of a conventional mounting structure.

In the figure, 1 indicates the casing of the panel instrument, and 2 indicates the flange attached to its front edge.

3 is a panel board. A hole through which the casing 1 passes is formed in the panel plate 3, and the flange portion 2 comes into contact with the front surface of the panel plate 3.

In this example, a pair of tapped holes, for example, are formed in the housing 1, and bolts 4-4 are screwed into the tapped holes to tighten the metal fittings 5 to the wall surface of the housing 1.

The metal fitting 5 is formed with a through hole having a long axis in a direction inclined to the plate surface of the panel plate 3. When tightening the bolt 4-4, the metal fitting 5 is pressed against the panel plate 3 while the bolt 4-4 is tightened. Tighten.

In this way, by sandwiching the panel plate 3 between the metal fitting 5 and the flange 2, the instrument is supported by the panel plate 3.

According to this mounting structure, it is necessary to use a tool to tighten the bolts 4-4, so when other panel instruments are placed adjacent to each other, the distance between them must be large, resulting in the need for many panels. When the instruments are mounted on the same panel board, there is a disadvantage that the area of the panel board becomes large.

For this reason, a mounting structure as shown in FIG. 2 has also been proposed.

In the example shown in FIG. 2, U-shaped metal fittings 6-
6, form a female threaded hole in the protruding piece of this U-shaped metal fitting 6-6, screw the threaded rod 7-7 into this female threaded hole, and feed the threaded rod 7-7. By bringing the tip into contact with the back surface of the panel board 3 and tightening it, the housing 1 is biased backward,
The panel board 3 is held between the tip of the threaded rod 7-7 and the flange 2.

According to this mounting structure, it is only necessary to rotate the threaded rod 7-7 from the rear end side of the housing 1, so that the distance between the instruments can be narrowed.

However, it is difficult to design the U-shaped metal fitting 6-6 to be strong enough, and if the metal fitting 6-6 is tightened too strongly, the metal fitting 6-6 will deform, making it unsuitable for mounting heavy instruments.

As shown in Fig. 3, the structure for mounting a heavy instrument is to attach a fixing nut 8 to the side of the housing 1, screw the bolt 44 into the female thread formed in the fixing nut 8, and then tighten the bolt 4.
-4, the triangular metal fitting 9 is pressed against the panel board 3.

With this configuration, since only a compressive force is applied to the metal fitting 9, the metal fitting 9 will not be deformed, and even a heavy instrument can be stably supported.

However, in order to increase the strength of the metal fitting 9, the shape becomes larger, the weight of the metal fitting itself becomes heavier, and the cost increases.

The purpose of this invention is to provide a panel instrument mounting structure that is inexpensive, lightweight, and capable of stably mounting heavy instruments.

FIG. 4 shows an embodiment of this invention.

In this invention, a fixing nut 8 is detachably attached to the side surface of the casing 1.

The fixing nut 8 has a female screw hole whose axis is parallel to the wall surface of the housing 1 when it is attached to the housing 1.

The threaded rod 7 is screwed into the female screw hole formed in the fixing nut 8, and a holder 10 is attached to the rear end side of the fixing nut 8, so that the holder 10 supports the rear end side of the threaded rod 7.

The holder 10 is made of a resin material, and for example, as shown in FIG.
It can be attached and removed by press-fitting it into a hole 1a formed in the housing 1.

As shown in FIG. 6, the fixing nut 8 has a small diameter portion 8a formed at one end of a cylindrical block, and a ring-shaped groove 8b is formed between the small diameter portion 8a and the large diameter portion.

Note that 8C indicates a female screw hole.

On the other hand, as shown in FIG. 7, the housing 1 has a large diameter hole 11 having a diameter larger than the diameter of the small diameter portion 8a of the fixing nut 8 and smaller than the diameter of the large diameter portion, and a small diameter hole 12 communicating with the large diameter hole 11. form.

Therefore, the fixing nut 8 first has its small diameter portion 8a connected to the large diameter hole 11.
The ring-shaped groove 8b is inserted through the large diameter hole 11 into engagement with the periphery of the small diameter hole 12, and the fixing nut 8 is detachably attached to the housing 1.

With this configuration, the screw 7 can be rotated from the rear end side,
By screwing the threaded rod 7 forward and bringing the tip of the threaded rod 7 into pressure contact with the panel plate 3, the panel plate 3 can be sandwiched between the threaded rod 7 and the flange 2, and the casing 1 can be supported. can be done.

Therefore, the intervals between instruments can be narrowed and many instruments can be mounted on a small panel board.

Further, according to this invention, the threaded rod 7 is simply held by the fixing nut 8 and the holder 10, so the structure is simple and can be manufactured at low cost.

Furthermore, since the fixing nut 8 and the holder 10 are made detachable from the housing 1, when the housing 1 is inserted into the hole formed in the panel board 3, the fixing nut 8 and the holder 10 pass through the notch through which the panel is penetrated. It is not necessary to form a hole, and a through hole can be easily formed.

In addition, in this invention, the fixing nut 8 is attached to the front end of the housing 1, so that the load is only applied to the threaded rod 7 over a short distance, so even if the threaded rod 7 is tightened with a relatively strong force, the threaded rod 7 It does not buckle and can therefore stably support even heavy instruments.

Furthermore, since the parts for mounting are comprised of the threaded rod 7, fixing nut 8, and holder 10, the weight of the parts for mounting is light, so that the overall weight can be reduced.

[Brief explanation of drawings]

Figures 1 and 3 are side views for explaining the mounting structure of a conventional panel instrument, Figure 2 is a plan view for explaining the mounting structure of a conventional panel instrument, and Figure 4 is an example of this invention. 5 is a sectional view showing an example of a holder used in the mounting structure of this invention; FIG. 6 is a perspective view showing an example of a fixing nut used in the mounting structure of this invention; FIG. 7 is a side view showing the fixing nut and the mounting hole of the holder. 1: Housing, 2: Flange, 3: Panel board, 7: Threaded rod, 8:
Fixing nut, 10: Holder.

Claims (1)

[Scope of utility model registration request] A first mounting hole having a large diameter hole provided in the casing and a small diameter hole communicating with the large diameter hole, and a ring-shaped groove formed between the large diameter part and the small diameter part, and the large diameter part a fixing nut having a female threaded hole having an axis in a direction parallel to the wall surface of the casing;
a second mounting hole provided in the housing behind the first mounting hole; and an elastic holder having one end open and a pair of lock-shaped legs formed at the open end; The small diameter part of the fixing nut is inserted through the large diameter hole of the first mounting hole, the ring-shaped groove is engaged with the edge of the small diameter hole that communicates with the large diameter hole, and the small diameter part of the fixing nut is inserted into the second mounting hole. A lock-shaped leg of the holder is inserted into the holder to engage the leg with the inner wall of the casing, and a threaded rod is provided that passes through the holder and is screwed into the female screw hole of the fixing nut. . A mounting structure for a panel instrument, characterized in that the casing is fixed to a panel.