JP2000270422A - Watthour meter accommodating board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a watthour meter accommodating board, wherein watthour meters different in size can be freely exchanged and accommodated with satisfactory appearance, and with little chance of a window frame being detached carelessly. SOLUTION: An accommodating board main body is constituted of a base 1 and a cover 20. A window frame 30 is detachably fixed to a window hole 21 in the front surface of the cover 20. Slant surfaces 25a, 25b inclined toward the window hole 21 to the inside of the cover 20 are formed in the vicinity of the window hole 21 periphery. Slant surfaces 32a, 32b which are inclined toward the exposure hole 31 to the rear side are formed in the vicinity of the exposure hole 31 periphery. Inclination angles of the slant surfaces 32a and 32b are made nearly equal to inclination angles of the slant surfaces 25a and 25b of the cover 20, respectively. As a result, when the window frame 30 is fixed to the window hole 21, the front surface of the window frame 30 and the front surface of the cover 20 (accommodating board main body) turn into a flat-topped state, and step difference is not generated between them, so that the occurrence such as the window frame coming off carelessly can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a watt-hour meter storage panel for storing a watt-hour meter with a part thereof exposed from a window hole.

[0002]

2. Description of the Related Art Heretofore, there has been provided a distribution board in which a watt-hour meter is housed in a free space of a box in which breakers such as a main switch and a branch switch are arranged (for example, Japanese Patent Application Laid-Open No. H9-1997). 163521). In this device, a cover having a large-diameter and small-diameter knockout hole is attached to the front side of the free space of the box, and a large-diameter or small-diameter knockout hole corresponding to the size of the wattmeter is formed. Part of the watt hour meter (ie,
The front of the watt-hour meter where the watt-hour supporting portion can be seen is exposed.

However, in the above distribution board, once a large-diameter knockout hole is formed in the cover in accordance with a large-sized watt-hour meter, the large-sized knockout hole is replaced with a small-sized watt-hour meter. Since the watt hour meter is unnecessarily exposed from the knockout hole and its appearance is deteriorated, it is impossible to store the watt hour meter having a small size.

Further, a window hole corresponding to a large-sized watt-hour meter is formed on the front surface of the storage panel main body, and a window frame having an exposure hole corresponding to the small-sized watt-hour meter is detachably attached to the window hole. There has already been proposed a watt-hour meter storage panel that solves the above-mentioned problem by putting on. In this watt-hour meter storage panel, the window frame is hooked and attached inside the periphery of the window hole so as to partially overlap the front surface of the periphery of the window hole.

[0005]

In the conventional watt-hour meter storage panel, a part of the window frame is partially attached to the storage panel main body around the window hole in a state where the window frame is attached to the storage panel main body. Since they overlap, a step is formed between the front surface of the storage panel body and the window frame, and there is a problem that the appearance is very poor. In addition, due to such a step, there is a possibility that an object may be caught on the step and the window frame may be accidentally detached.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has as its object the purpose of being able to freely replace watt-hour meters having different dimensions and to house them with a good appearance and to carelessly arrange a window frame. An object of the present invention is to provide a watt-hour meter storage panel that is less likely to come off.

[0007]

According to the first aspect of the present invention, there is provided a storage panel body for storing a watt-hour meter with a part thereof being exposed from a window opening in a front surface, A watt-hour storage panel having an exposure hole for exposing a part of the watt-hour meter and a window frame detachably attached to the periphery of the window hole, and falls from the periphery of the window hole toward the inside of the storage panel body. A concave portion is provided, and the front surface of the window frame and the peripheral portion of the window hole of the storage panel body are substantially flush with each other in a state where the window frame is attached to the concave portion. When the window frame is removed and a small-sized watt-hour meter is stored, the window frame is attached to the window hole so that the watt-hour meter with a different size can be freely replaced and stored with a good appearance. Window frame is careless because there is no step with the storage panel body It can be prevented from being disconnected.

According to a second aspect of the present invention, in the first aspect of the present invention, an inclined surface inclined toward the inside of the storage panel main body as approaching the window hole and the exposure hole is formed around the periphery of the window hole and the window frame outside the recess. It is characterized by being formed on the periphery of the exposed hole,
The thickness of the window frame from the front to the back increases,
The strength of the window frame can be improved.

A third aspect of the present invention is characterized in that, in the second aspect of the present invention, a plurality of window holes are provided on the front surface of the storage panel main body, and the shape of the inclined surface around each of the window holes is substantially the same. When a plurality of watt-hour meters are stored in the storage panel body, the same window frame can be attached to any of the window holes, so that the window frames can be shared and the manufacturing cost can be reduced.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS.

The watt-hour meter storage panel of the present embodiment has a watt-hour meter 6 with a part thereof exposed from a window hole 21 opened at the front.
The power storage device includes a storage panel main body for storing the zero and a window frame 30 having an exposure hole 31 for exposing a part of the watt hour meter 60 and detachably attached to a periphery of the window hole 21.

The storage board main body is composed of a base 1 and a cover 20 made of synthetic resin having an insulating property. Base 1 is
A watt hour meter 60 is mounted on the front and
Plate-shaped base body 2 having an electric wire insertion hole 4 through which an electric wire 40 to be connected to the rear side is inserted from the back side to the front side, and a plate-shaped peripheral wall portion 3 vertically suspended from the periphery of the base body 2 to the back side.
And a screw insertion hole 5 through which an attachment screw (not shown) for attaching the base body 2 to a construction surface such as a wall surface is provided, from the back of the four corners of the base body 2 to a position substantially the same as the tip of the peripheral wall 3. A protruding substantially cylindrical boss portion 6 is formed integrally. In addition, a stepped portion 7 that retreats to the back side is formed on the entire periphery of the front surface of the base body 2,
The periphery of the screw insertion hole 5 on the front surface of the base body 2 has an inner diameter not smaller than at least the outer dimension of the tip portion of the boss portion 6 and has a substantially circular fit in plan view, which is set back to the rear side by substantially the same size as the step portion 7. A joint 8 is formed. Furthermore, the base body 2
The upper part of the center is provided with a Daruma hole 2a, and the head of a screw (not shown) attached to the construction surface can be locked to the Daruma hole 2a to temporarily fix the base 1. And
The mounting screws are inserted into the four screw insertion holes 5 of the temporarily fixed base 1, and the base 1 is fixed by these four mounting screws.
Is fixed to the construction surface.

Here, a substantially cylindrical concealing member 13 as shown in FIG. 6 is detachably fitted to the fitting portion 8 respectively.
A projection 13a protrudes from an upper peripheral edge of the hidden member 13, and a positioning mark 13b is formed on a lower front surface. An escape portion 8a for allowing the projection 13a to escape is recessed in the upper peripheral surface of the fitting portion 8, and a positioning portion corresponding to the mark 13b of the hidden member 13 is provided on the front surface of the base body 2 below the fitting portion 8. Mark 8b is formed. Thus, by matching the marks 13b and 8b, the hidden member 13 can be easily positioned and fitted to the fitting portion 8, and the hidden member 13 can be fitted and the fitted portion 8 can be closed. The head of the mounting screw is not visible from the front surface of the base 1, and the appearance can be improved. When removing the hidden member 13 from the fitting portion 8, the hidden member 13 can be easily removed by inserting a jig such as a flathead screwdriver into a gap between the projection 13a and the escape portion 8a and prying.

A terminal portion to which the electric wire 40 is connected is provided at the lower end of the wattmeter 60, and the terminal portion is covered with a terminal cover 61 made of an insulating synthetic resin or the like. A mounting bracket 62 bent substantially in an L shape is welded at one end to the upper end surface of the watt hour meter 60. A mounting hole 62 (not shown) is formed on the surface of the mounting bracket 62 facing the base 1 (the back surface of the watt-hour meter 60), and four screw holes 2b formed in the base body 2 are formed.
The head of a fixing screw (not shown) screwed into any of the above is inserted and locked in the above-mentioned Daruma hole. Further, the base body 2 is provided with substantially letter-shaped screw insertion grooves 2c, 2c, and fixing screws (not shown) inserted into the screw insertion grooves 2c, 2c from the back side of the base body 2 are measured by a watt-hour meter. The watt hour meter 60 is attached to the upper portion of the front surface of the base body 2 by screwing into a screw hole (not shown) provided on the back surface of the 60. It should be noted that which of the four screw holes 2b is to be screwed with the fixing screw is determined by the watt-hour meter 6.
It depends on the size of 0.

An electric wire insertion hole 4 formed in the lower part of the front surface of the base body 2 is separated into two right and left parts by a central wall 4a. At the periphery of the electric wire insertion holes 4 and 4 on the front surface of the base body 2, there is formed a mounting recess 9 which recedes on the rear side of the base body 2.
Is fitted. The electric wire insertion hole cover 10 is formed of a synthetic resin into a rectangular plate shape, and two types of knockout holes 10a having different diameters are provided at positions overlapping the right and left electric wire insertion holes 4 and 4, respectively. The mounting recess 9 of the base body 2
There are four locking projections 10b which are locked on the locking portions 9a formed on the upper surface of the electric wire insertion hole cover 10 and two on the lower end surface thereof. Stop 9
The wire insertion hole cover 10 is detachably fitted to the mounting recess 9 of the base body 2 by engaging with the base body 2. The electric wire insertion hole cover 1 sandwiched between each pair of knockout holes 10a.
A substantially central portion of 0 has an elongated hole 10c into which a ridge 4b projecting from the front surface of the central wall 4a is fitted.

Since the electric wire insertion hole 4 of the base body 2 is formed to have a size sufficiently larger than the diameter of the electric wire 40, an extra gap is provided in the electric wire insertion hole 4 in a state where the electric wire 40 is inserted. There is a possibility that dust or dust may enter the inside due to the occurrence of dust. However, by closing an extra gap of the wire insertion hole 4 with the wire insertion hole cover 10, it is possible to prevent dust or dust from entering. Here, the electric wire 40 is inserted into the knockout hole 10a of the electric wire insertion hole 4. In the case of the electric wire 40 having a relatively large diameter, the electric wire 40 is inserted into the knockout hole 10a having a larger diameter as shown in FIG. A relatively small diameter electric wire 40
In this case, as shown in FIG. 5, it may be inserted into the knockout hole 10a having a smaller diameter. In other words, a single type of wire insertion hole cover 10 can handle a plurality of types of wires 40 having different diameters, and there is no need to prepare a plurality of types of wire insertion hole covers corresponding to the diameter of the wires 40, thereby reducing costs. It can be achieved.

On the other hand, the cover 20 is formed in a substantially box shape having an open rear surface, and is attached to the front surface of the base 1. A substantially rectangular shape through which a part of the watt hour meter 60 is inserted and exposed is provided at the upper front surface. Window hole 21 is provided. A pair of locking holes 22, 22 are provided at the upper open end of the cover 20, and a substantially semi-circular plate in a plan view having an insertion hole 23a through which a fixing screw (not shown) is inserted from near the open end at the center of the lower surface. A projecting portion 23 is provided to project downward. When the cover 20 is attached to the front surface of the base 1 such that the opening edge of the cover 20 is engaged with the step 7 of the base body 2, the cover 20 protrudes from the upper end side of the base body 2. The locking projections 11, 11 are inserted and locked in the locking holes 22, 22 of the cover 20. Furthermore, base 1
At the substantially lower center of the peripheral wall portion 3 of the cover 2, a rectangular plate-shaped fixing bracket 12 is attached so as to partially project downward.
The base 1 and the cover 20 are firmly fixed by screwing a fixing screw inserted into the insertion hole 23a of the zero protrusion 23 into a screw hole 12a formed in the fixing bracket 12.

By the way, a recess 24 is formed on the entire periphery of the window hole 21 on the front surface of the cover 20 so as to fall inward, and a window frame 30 is detachably mounted in the recess 24. In the vicinity of the periphery of the window hole 21 on the front surface of the cover 20, an inclined surface 2 that is inclined toward the inside of the cover 20 toward the window hole 21.
5 are formed, and the inclined surface 25a located below the window hole 21 is formed with respect to the inclined surface 25a located above the window hole 21.
The inclination angle of b is made gentle.

On the other hand, the window frame 30 is made of a synthetic resin and has a rectangular exposure hole 31 through which a part of the watt-hour meter 60 is inserted and exposed.
The front surface has an inclined surface 32 inclined toward the rear surface toward the exposure hole 31, and the inclination angle of a pair of inclined surfaces 32 a and 32 b opposed to each other with the exposure hole 31 interposed therebetween is set to the window hole of the cover 20. The inclination angles of the inclined surfaces 25a and 25b in the vicinity of the periphery of 21 are substantially matched. Further, a concave portion 2 provided on the periphery of the window hole 21 of the cover 20 from the peripheral edge on the back side of the window frame 30.
A plate-shaped protruding wall 33 that abuts on the rear surface 4 is vertically provided rearward, and has a locking claw 34 a that locks on a tip portion of the concave portion 24 near both ends of the protruding wall 33 that is vertically opposed. Locking pieces 34 are provided to project along the protruding walls 33, respectively. Note that a tapered surface 34b that slopes outward toward the front side of the window frame 30 is formed at the tip of the locking claw 34a.

When the rear side of the window frame 30 is inserted into the window hole 21 of the cover 20 from the front, the tapered surface 34b of the locking claw 34a abuts on the tip of the concave portion 24, and the window frame 30 is By pressing the locking member 34 inward, the locking piece 34 bends inward along the tapered surface 34b, and the locking claw 34a rides over and locks the distal end of the recess 24, whereby the window frame 30 is attached to the recess 24, and 20 is fitted into the window hole 21 (see FIGS. 7 and 10). The window frame 30 can be easily removed from the cover 20 by releasing the engagement between the recess 24 and the engagement claw 34a.

That is, when the external dimensions of the portion that is inserted into and exposed through the window hole 21 of the watt hour meter 60 are large, the one of the watt hour meter 60 is directly passed through the window hole 21 of the cover 20 without using the window frame 30. In the case where the external dimensions of the portion that is inserted and exposed through the window 21 of the watt hour meter 60 are small, the window frame 30 is inserted into the window 21 as shown in FIG. A power meter 6 is mounted on the exposed hole 31 of the window frame 30.
0 may be inserted and exposed. By thus detachably attaching the window frame 30 to the window hole 21 of the cover 20, the watt-hour meters 60 having different dimensions can be freely replaced and housed with a good appearance. Moreover, the exposed hole 3
Since the inclination angles of the pair of inclined surfaces 32a and 32b opposed to each other with the first and second surfaces substantially coincide with the inclination angles of the inclined surfaces 25a and 25b near the periphery of the window hole 21 of the cover 20, respectively, as shown in FIG. When the window frame 30 is attached to the hole 21, the front surface of the window frame 30 and the front surface of the cover 20 (storage panel body) are flush with each other, so that no step is formed between the two, and the storage panel body is different from the conventional example. It can be prevented that the window frame is accidentally detached due to the thing caught on the step generated between the window frame and the window frame.

The window frame 30 can be mounted upside down with respect to the window hole 21.
Since the inclination angles of the pair of inclined surfaces 32a and 32b opposed to each other with the inclination angle in the vicinity of the periphery of the window hole 21 of the cover 20 substantially coincide with the inclination angles of the inclined surfaces 25a and 25b different from each other, the window frame 30 is formed. Is mounted upside down, as shown in FIG.
a, 25b and the inclined surfaces 32a, 32 of the window frame 30
Since the inclination angles of b do not match, it can be easily determined that the window frame 30 is mounted in the wrong direction, and the window frame 30 can be prevented from being mounted in the wrong direction (upside down). By forming the inclined surfaces 32a and 32b on the window frame 30, the thickness from the front surface to the rear surface of the window frame 30 becomes larger as compared with the case where the window frame 30 is flat.
There is an advantage that the strength of the steel is improved.

By the way, as shown in FIG.
And the cover 20 'is formed to have approximately twice the size in the left-right direction, and the window holes 21', 21 'having the same shape are formed in the cover 20'.
The two watt-hour meters 60 may be housed side by side at the top of the front. Thus, the plurality of wattmeters 6
If 0 is stored, the cost can be reduced as compared with using a plurality of watt-hour meter storage panels that store one watt-hour meter 60. At this time, each window hole 21 'of the cover 20',
If the shape of the inclined surface 25 'formed near the periphery of 21' is the same, the same window frame 30 can be attached to any of the window holes 21 'and 21', and the window frame 30 can be shared. Therefore, there is an advantage that the manufacturing operation becomes easy and the manufacturing cost can be suppressed.

When the thickness of the erection material such as the wall material to which the base 1 is attached is small and the diameter of the electric wire 40 is larger than the thickness of the erection material, the electric wire 40 is pulled out from the hole of the erection material. Hard to bend, electric wire 40 to base 1
May not be able to be inserted into the electric wire insertion hole 4.
In such a case, it is conceivable to interpose a spacer between the base 1 and the erection surface in order to compensate for the thickness of the erection material, but in such a case, a spare spacer must be created one by one according to the thickness of the erection material. However, there is a disadvantage that a mold dedicated to the spacer is required, and the manufacturing cost is increased.

Therefore, in this embodiment, the step 7 is formed on the entire periphery of the front surface of the base body 2 and has an inner diameter not smaller than the outer dimension of the tip of the boss 6 and is substantially the same as the step 7. Fitting portion 8 retracted to the back by the same dimension
Is formed. That is, as shown in FIGS. 16 and 17, when another base 1 is superimposed on the front surface of the base 1, the peripheral wall 3 of the front base 1 is engaged with the step 7 of the rear base 1, and The front base 1 is attached to the fitting portion 8.
In this state, the electric power meter is inserted into the electric wire insertion hole 4 of each of the bases 1 and 1 and attached to the front base 1 as shown in FIG. Wire 4 to 60
0 can be connected. Therefore, even if the thickness of the erection material is small and the diameter of the electric wire 40 is larger than the thickness of the erection material, the electric wire 40 is easily bent by overlapping the bases 1 and 1 as described above. It is not necessary to use a separate member such as a spacer, and it is possible to cope with a small construction surface without increasing the cost. Note that the peripheral wall 3 of the front base 1 is engaged with the step 7 of the rear base 1 and the tip of the boss 6 of the front base 1 is fitted into the fitting portion 8 of the rear base 1. Therefore, there is an advantage that the two bases 1 and 1 that are superimposed can be prevented from being displaced from each other, and the appearance is improved without any step between the peripheral wall portions 3 and 3.

[0026]

According to the first aspect of the present invention, a storage panel main body for storing a watt-hour meter with a part thereof being exposed from a window hole opened on the front surface, and an exposure hole for partially exposing the watt-hour meter are provided. A wattmeter storage panel having a window frame detachably attached to a peripheral edge of the window hole, a concave portion which falls from the peripheral edge of the window hole toward the inside of the storage panel body is provided, and the window frame is attached to the concave portion. In this state, the front of the window frame and the periphery of the window hole of the storage panel body are substantially flush with each other. Therefore, when storing a large-sized watt-hour meter, remove the window frame and store a small-sized watt-hour meter. In this case, by attaching a window frame to the window hole, the watt-hour meter with different dimensions can be freely replaced and stored with good appearance, and there is no step between the window frame and the storage panel body, so the window frame Has the effect of preventing accidental removal According to the second aspect of the present invention, an inclined surface inclined toward the inside of the storage panel body as approaching the window hole and the exposure hole is formed on the periphery of the window hole outside the concave portion and the periphery of the exposure hole of the window frame. The thickness of the window frame from the front surface to the rear surface increases, and the strength of the window frame can be improved. The invention according to claim 3, wherein a plurality of window holes are provided on the front surface of the storage panel main body, and each of the window hole peripheral edges is provided. Since the shape of the inclined surface is substantially the same, the same window frame can be attached to any window hole when a plurality of watthour meters are stored in the storage panel body,
There is an effect that window frames can be shared and manufacturing costs can be reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment.

FIG. 2 is a perspective view of the same.

FIG. 3 is a rear view of the base in the above.

FIG. 4 is a front view of the base in the above.

FIG. 5 is a front view of the base in the above.

FIG. 6 is an exploded perspective view of a main part of the above.

FIG. 7 is a side sectional view of the cover with the window frame attached thereto in the same.

FIG. 8 is a top cross-sectional view of the cover with the window frame attached thereto in the same.

FIG. 9 is a front view of the cover with the window frame attached thereto in the same.

FIG. 10 is a rear view of the cover with the window frame attached thereto in the same.

FIG. 11 is a front view of the cover in a state where the window frame in the above is mounted upside down.

FIG. 12 is a perspective view showing another configuration of the above.

FIG. 13 is a top sectional view showing another configuration of the cover in the above.

FIG. 14 is a bottom sectional view showing another configuration of the cover in the above.

FIG. 15 is a perspective view showing a state in which the two bases in the above are overlapped.

FIG. 16 is an exploded perspective view of a main part of the base in the above.

FIG. 17 is a side cross-sectional view showing a state in which the two bases in the above are overlapped.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 20 Cover 21 Window hole 24 Depression 25a, 25b Inclined surface 30 Window frame 31 Exposure hole 32a, 32b Inclined surface

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Tsuyoshi Yano 1048 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Inventor Toshiyuki Koshino 55, Haruki Labu, Toriyacho, Kashima-gun, Ishikawa Pref. In-house F-term (reference) 5G016 AA03 CD07 CD10 5G357 CA05 CB03 CC10

Claims (3)

[Claims] 1. A storage panel main body for storing a watt hour meter with a part thereof being exposed from a window hole opened on a front surface, and an exposure hole for exposing a part of the watt meter, and a peripheral portion of the window hole. In a watt-hour meter storage panel equipped with a detachable window frame,
A recess is provided that falls from the periphery of the window hole toward the inside of the storage panel main body, and the front surface of the window frame and the periphery of the window hole of the storage panel main body are substantially flush with the window frame attached to the recess. Electricity meter storage panel. 2. The method according to claim 1, wherein a slope inclined toward the inside of the storage panel body as approaching the window hole and the exposure hole is formed on a periphery of the window hole outside the recess and a periphery of the exposure hole of the window frame. The electricity meter storage panel according to claim 1. 3. A plurality of window holes are provided on a front surface of the storage panel main body,
The watt-hour meter storage panel according to claim 2, wherein the shape of the inclined surface at the periphery of each window hole is substantially the same.