JPH0442736Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an improvement in the mounting structure of a scale plate of a rim-shaped electric meter.

[Conventional technology]

A conventional scale plate mounting structure of this type is shown in FIG. 7 (for example, see Japanese Utility Model Application No. 48-63769). In other words, FIG. 7 is an exploded perspective view of a conventional edge-shaped electric meter, especially showing the vicinity of the scale plate attachment, where 50 is a case, 11 is a top cover, 12 is a top cover mounting screw, 4 is a scale plate, 13 is a guideline,
Reference numerals 61a and 61b indicate scale plate mounting bases integrally formed with the case portion 50, 51 indicates a front cover having a transparent portion 63, and 52 indicates front cover mounting screws.

Next, a method of attaching the scale plate 4 will be explained. In the figure, the scale plate 4 includes the scale plate mounting base 61a,
Insert into grooves 62a and 62b formed in 61b,
It is held with appropriate friction. After inserting the scale plate 4 as described above, insert the front cover 51 into the case part 50.
and secure it using the front cover mounting screws 52.

Next, in order to remove the scale plate 4 from the case part 50 in order to replace it, etc., remove the front cover mounting screws 52 and pull out the front cover 51 from the case part 50, contrary to the above-mentioned mounting method. After removing it, pull out the scale plate 4 in the thickness direction indicated by the arrow to replace it.

Next, referring to FIG. 8, the mounting structure of the edge-shaped electric meter on the panel will be explained. 91 is the mounting panel,
94 is a mounting bracket, and 95 is a mounting screw. Further, 64a and 64b shown in FIG. 7 are panel contact surfaces formed on the front cover 51. The edge-shaped indicator electric meter is attached to the mounting hole provided in the panel 91 on the front side of the panel 91a.
The mounting bracket 94 is held by suitable means on the edge-shaped instrument, and the mounting screws 95 are screwed into the mounting bracket 94, so that the panel contact surfaces 64a, 6
4b and the mounting screws 95, the panel 91 is mounted in a sandwiched state. Also, instrument terminal 9
Reference numeral 6 is located on the back side of the panel 91b, and a conducting wire for giving input to the meter is connected to this.

[Problem that the invention attempts to solve]

The scale plate of the conventional rim-shaped electric meter is constructed as described above, so when the rim-shaped electric meter is mounted on a panel, the scale plate can be exposed, for example, to add a mark to a specific scale. If the scale plate needs to be removed from the case, or if the scale plate needs to be removed from the case in order to change the scale specifications or replace it with a new scale plate, the replacement method described above must be used. That is, in order to remove the front cover 51 from the case 50, first cut off the electrical circuit input to the edge-shaped electric meter, remove the conductor from the meter terminal 96, loosen the mounting screws 95, and then There was a problem in that the scale plate could not be replaced until after the edge-shaped indicating electric meter had been removed from the panel, which required a considerable amount of effort and time.

This idea was made to solve the above-mentioned problems, and when the edge-shaped electric meter is installed on a panel, etc., it is possible to disconnect the conductor from the meter terminal, loosen the mounting screws, and attach the mounting bracket. To provide a rim-shaped indicating electric meter whose scale plate can be replaced without requiring any effort such as removing the rim.

[Means for solving problems]

The edge-shaped indicating electric meter according to this invention has scale plate mounts 21a and 21b that support both ends of the scale plate and said scale plate mounts 21a and 21b facing each other with an appropriate distance between them, so as to be able to slide. Scale plate presser 5
and 6 sandwich both end portions of the scale plate.

In addition, the instrument cover is provided with a transparent part for reading the value on the scale plate indicated by the pointer, and in combination with the protruding part that holds the scale plate holder 5 and the scale plate mounting base 21b, the scale plate is displayed. It has a fixing surface part provided with a fixing means for holding the plate holder 6 and holding the instrument cover itself, and is fixed facing the protruding part of the instrument cover at an appropriate distance from the protruding part. A protruding part of the instrument cover is inserted into the gap between the scale plate holder 5 and the bridge part, and the scale plate holder 6 is inserted into the gap between the scale plate holder 5 and the bridge-shaped part.
is held between the bridge-shaped part and the scale plate mounting base 21a, and the fixed surface part side provided on one instrument cover is fixed, and the scale plate holder 6
is held between the scale plate mounting base 21b and the fixed surface portion.

[Effect]

Since the instrument cover according to this invention can be removed from the front of the edge-shaped electric meter, the scale plate holders 5 and 6 held by the instrument cover can be removed, and the scale plate holders 5 and 6 can be removed. The clamped scale plate can be replaced from the front of the edge-shaped electric meter.

〔Example〕

An embodiment of this invention will be described below with reference to FIGS. 1 to 6. Figure 1 is an exploded perspective view of the vicinity of the scale plate attached according to this invention, Figure 2 is an assembled perspective view of Figure 1, showing the front of the edge-shaped electric meter, and Figure 3 shows the scale plate installed. FIG.

In the figure, 1 is a case part, 2 is an outer frame, 3 is an outer frame mounting screw, 4 is a scale plate, 5 and 6 are scale plate holders, 7 is an instrument cover, 8 is an instrument cover mounting screw,
9 is the upper name version, 10 is the lower name version, 11 is the top cover 1
2 is a top cover mounting screw, and 13 is a pointer.

Further, 21a and 21b are scale plate mounting bases formed on the case portion 1, 22 is a female screw portion for holding the instrument cover 7, 23 is a bridge-shaped portion formed on the outer frame 2, and 24 is the instrument cover. a mounting hole through which a mounting screw is passed; 25 is a protruding portion that clamps the scale plate holder 5; 26 is a fixed surface portion that clamps the scale plate holder 6 and holds the instrument cover 7; 27;
is a mounting hole through which the instrument mounting screw 8 is passed. Further, 30a and 30b are panel mounting surfaces.

The scale plate 4 is a scale plate mounting base 2 provided on the case part 1.
1a and 21b and slidable scale plate holders 5 and 6, an instrument cover 7 is disposed on the upper surface of the scale plate holders 5 and 6, and a projection 25 provided on this instrument cover 7 is held by the scale plate holders 5 and 6. 5 and outer frame 2
The instrument cover 7 is inserted into the gap 31 formed by the bridge-shaped part 23 formed in the instrument cover, and the fixed surface part 26 of the instrument cover 7 is brought into contact with the scale plate holder 6, and the instrument cover mounting screw 8 is inserted into the fixed surface part 26 of the instrument cover. The instrument cover 7 is fixed by screwing it through the mounting hole 27 and the mounting hole 24 of the scale plate holder 6 to the female threaded portion 22 of the scale plate mounting base 21b. Then, an upper name plate 9 is attached to the instrument cover mounting screw 8 side, and a lower name plate 10 is attached to the bridge-shaped portion 23 side.

Next, a method of attaching the scale plate 4 will be explained with reference to FIG. Scale plate mounting base 21 formed on the case part 1
The terminal ends 4a and 4b of the scale plate 4 are placed on the scale plate holding surfaces 32a and 32b of the scale plate holding surfaces 32a and 21b.
The terminal end portion 4a of the scale plate 4 is inserted into the guide hole 33 provided at the scale plate 4, and the terminal end portion 4a of the scale plate 4 is held together with the scale plate mounting base 21a. Further, the scale plate end portion 4b is held together with the scale plate mounting base 21b by the other scale plate holder 6.

Next, the protrusion 2 formed on one side of the instrument cover 7
5 is inserted into the gap 31 formed by the bridge-like part 23 formed on the outer frame 2 and the scale plate holder 5, and the other fixed surface part 26 is attached in contact with the upper surface of the scale plate holder 6. Then, pass the instrument mounting screw 8 through the mounting hole 27 provided in the fixed surface portion 26 of the instrument cover 7 and the mounting hole 24 provided in the scale plate holder 6,
The instrument cover 7 and the scale plate holder 6 are held on the scale plate mount 21b by screwing into the internal threaded part 22 provided on the scale plate holder 21b, and at the same time, the scale plate holding part 6a of the scale plate holder 6 is attached to the scale plate. Mounting stand 21
b together with the scale plate holding surface 32b and the scale plate end portion 4.
Hold b.

Further, when the instrument cover mounting screw 8 is screwed, the protrusion 25 of the instrument cover 7 is attached to the outer frame 2.
The movement is regulated by the bridge-shaped portion 23, and the arched surface portion 25a of the protruding portion 25 presses the scale plate holder 5 and is clamped together with the scale plate mounting base 21a, and the scale plate holding portion 5a of the scale plate holder 5 Plate mounting base 21a
The scale plate end portion 4a is between the scale plate holding surface 32a and the scale plate holding surface 32a.
, in which the scale plate 4 is completely held.

Next, a method for replacing the scale plate will be explained with reference to FIGS. 4 and 5. First, remove instrument cover mounting screw 8,
As shown in FIG. 4, the fixed surface portion 26 of the instrument cover 7 is tilted forward using the bridge-like portion 23 of the outer frame 2 as a fulcrum, and then the instrument cover 7 is removed.

Next, remove the scale plate holder 6 from the scale plate mount 21b, and at the same time slide one scale plate holder 5 toward the bridge-shaped portion 23 as shown in FIG.
The scale plate terminal end 4a is freed. Then, using the scale plate terminal end 4a as a fulcrum, hold the other scale plate terminal end 4b, fold it toward you, and pull out the scale plate 4 upward.

In addition, the dashed-dotted line shown in FIG. 3 indicates the outer frame 2,
The two-dot chain line indicates the instrument mounting panel 91. Furthermore, even when the edge-shaped electric meter is attached to the panel 91 or the like in the figure, the instrument cover 7 and scale plate holder 6 can be attached and removed from the front of the edge-shaped electric meter, that is, from the front 91a side of the panel 91, as described above. Therefore, the scale plate 4 can be attached and detached in the same way.

In the above embodiment, the bridge-shaped portion 23 formed on the outer frame 2 and acting as a fulcrum when the instrument cover 7 is removed has a structure in which the left and right sides of the outer frame 2 are connected. It may be a divided piece, that is, a protruding piece protruding from each of the left and right sides of the outer frame 2, and the mounting hole 27 of the fixed surface portion 26 of the instrument cover 7 and the mounting hole 24 of the scale plate holder 6 may be formed from the upper part. Even if the U-shaped groove is opened, the same effect as in the above embodiment can be obtained.

[Effect of idea]

As described above, according to this invention, the instrument cover 7 and the scale plate holders 5 and 6 are provided which are detachable from the front of the edge-shaped indicating electric meter, and the instrument cover 7 and the scale plate holders 5 and 6 can be removed from the front. Since the configuration is such that the scale plate 4 can be replaced, when replacing the scale plate with the edge-shaped electric meter attached to the mounting panel 91 etc., it is necessary to connect the conductor and the meter terminal. The effort and time required to remove the edge-shaped indicator electric meter from the mounting panel 91 is omitted, and the scale plate can be replaced with a simple operation.

[Brief explanation of the drawing]

Figures 1 to 6 show an embodiment of this invention; Figure 1 is an exploded perspective view of the scale plate mounting structure;
Fig. 2 is an assembled perspective view, Fig. 3 is a sectional view showing the scale plate attached, Fig. 4 is a partial sectional view showing the instrument cover removed, and Fig. 5 shows the scale plate removed. Partial sectional view, Figure 6a is a side view of the meter cover, Figure 6b is a rear view, Figure 7 is an exploded perspective view of a conventional scale plate mounting structure, and Figure 8 is a panel-mounted state of the edge-shaped electric meter. FIG. In the figure, 1 is a case part, 2 is an outer frame, 4 is a scale plate, 5 and 6 are scale plate holders, 7 is an instrument cover, and 9
10 is an upper name plate, 21a and 21b are scale plate mounting bases, 23 is a bridge-like part, 25 is a protrusion-like part, and 26 is a fixed surface part. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A scale plate mount supporting the scale plate formed on the upper and lower edges of the case part, a slidable scale plate holder installed in parallel to both scale plate mounts, and a scale plate holder that is attached to the outer frame at a position near one of the scale plate holders. a removable instrument cover, which is provided with a bridge-shaped part, a protruding part inserted between the one scale plate holder and the bridge-shaped part, and a fixing surface part that holds the other scale plate holder and has a fixing means; , an upper name plate and a lower name plate are removably attached to cover the protruding portion and the fixed surface portion of the instrument cover, and both ends of the scale plate are provided with the scale plate mounting base and the corresponding scale plate holder. An edge-shaped indicating electric meter, characterized in that the scale plate holder is held by the meter cover.