JP6313103B2 - cabinet - Google Patents

Description

  The present invention relates to, for example, a cabinet that houses electrical equipment, and more particularly to a cabinet that can be installed on a wall surface.

  Electrical devices such as circuit breakers and switches are often stored in a box (cabinet) installed on a wall surface. Many of the boxes installed on such a wall surface are configured to be attached to a hook projecting on the wall surface or using a screw hole formed on the back plate or screwed (for example, Patent Document 1).

JP 2011-101477 A

Since the cabinet of the above-mentioned Patent Document 1 is relatively small, it is manufactured by resin molding, and a daruma hole is formed at the time of resin molding. Therefore, the troublesome work of drilling holes at the site is not necessary, but when the cabinet is made of metal, the harpoon hole may not be formed at the time of factory shipment. This is to reduce the number of openings in the cabinet as much as possible, and to prevent insects and dust from entering. However, since there is a high need for daruma holes, in order to facilitate drilling at the site, positioning marks that assist the production of daruma holes are recessed or drilled at multiple locations such as the center of the back of the cabinet. A daruma hole was drilled at the installation site using this mark.
However, since the Daruma hole fabrication process is created by opening round holes (small holes at the top and large holes at the bottom) at the top and bottom and connecting the two holes, misalignment occurs in certain hole processing, The connection work was difficult and not easy.

  Therefore, in view of such a problem, an object of the present invention is to provide a cabinet capable of producing a daruma hole by performing a minimum hole processing on site.

In order to solve the above-mentioned problem, the invention of claim 1 is a cabinet provided with at least one guide processing part for guiding the production of the daruma hole, the guide processing part having a small diameter round which forms one end of the daruma hole. A first auxiliary point for forming a hole and a second auxiliary point for forming a large-diameter round hole forming the other end of the dharma hole are recessed or drilled. It is characterized in that it has a pair of slits formed on both sides of the center line to be connected with the same interval as the diameter of the small-diameter round hole formed parallel to the center line.
According to this configuration, it is possible to produce a daruma hole by connecting both holes with a slit only by drilling a round hole with a drill or the like using two auxiliary points formed in the guide processing portion. It becomes possible. Therefore, even if the daruma hole is not formed, the daruma hole can be produced by simple processing, and the burden on the operator at the installation site can be reduced. Further, in the state where no daruma hole is formed, the opening is a small portion, and entry of dust or the like can be prevented.

According to a second aspect of the present invention, in the configuration of the first aspect, the slit is formed up to a position extending to the left and right of the first auxiliary point.
According to this configuration, when the first auxiliary point is used to make a round hole, the hole can be formed satisfactorily by simply determining the diameter of the round hole according to the slit width and machining the hole. Because of this, it is possible to easily and accurately make a daruma hole.

  According to the present invention, it is possible to produce a daruma hole in which both holes are connected by a slit only by drilling a round hole with a drill or the like using two auxiliary points formed in the guide processing portion. It becomes possible. Therefore, even if the daruma hole is not formed, the daruma hole can be produced by simple processing, and the burden on the operator at the installation site can be reduced. Further, in the state where no daruma hole is formed, the opening is a small portion, and entry of dust or the like can be prevented.

An example of the cabinet which concerns on this invention is shown, (a) is the perspective view seen from the back direction, (b) is the A section enlarged view. It is a top view which shows the specific shape of a guide process part. It is a top view of the daruma hole formed using the guide process part.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below in detail with reference to the drawings. 1A and 1B show an example of a cabinet according to the present invention, in which FIG. 1A is a perspective view seen from the back side, and FIG.

  The cabinet is composed of a main body 1 that stores electrical equipment and the like and a door plate (not shown) that closes the front surface of the main body. The main body 1 has a back plate 1a, a top plate 1b, a bottom plate 1c, and left and right side plates 1d and 1d. Is formed as an opening.

  And in FIG. 1, the guide process part 2 for making preparation of a daruma hole easy is formed in the center upper part and lower part of the main body back surface 1a. The guide processing portion 2 has recessed auxiliary points 3 (first auxiliary point 3a and second auxiliary point 3b) for use as centers when drilling round holes in two upper and lower portions, and slits 4 on the left and right sides thereof. Are paired. In addition, the number and the formation place of the guide process part 2 are arbitrary by the installation form and magnitude | size of a cabinet.

FIG. 2 is a front view of the guide processing portion 2 and shows an example of dimensions. As shown in FIG. 2, the two auxiliary points 3a and 3b are formed as, for example, concave portions having a diameter (diameter) of 2 mm, and are formed with an interval of 10 mm vertically. The slits 4 are formed in parallel to the center line M passing through the centers of the auxiliary points 3a and 3b, and two slits 4 are arranged at symmetrical positions of the center line M.
The slit 4 is formed with a width of 0.5 mm and a length of 6 mm, and both the slits 4 and 4 are formed with an interval that matches the width of a small-diameter round hole formed around the first auxiliary point 3a. Yes. Specifically, the distance between the inner ends is 6 mm, and the distance between the outer ends is 7.0 mm. Further, the upper end of the slit 4 is formed up to a position reaching the left and right of the first auxiliary point 3a.

FIG. 3 shows a front view of the daruma hole 10 produced using this guide processed portion. The small-diameter round hole 10a formed using the first auxiliary point 3a is formed with a diameter of 7 mm, and coincides with the distance between the outer end portions of both the slits 4 and 4.
The diameter L of the large-diameter round hole 10b formed using the second auxiliary point 3b is, for example, 11 mm. In FIG. 3, a site indicated by S is a site formed by the slit 4.
In addition, when the diameter L of the large-diameter round hole 10b is set to 11 mm, the Daruma hole 10 thus manufactured passes through the M6 pan head (φ10.5 mm) and the M6 plain washer (φ12.5 mm) is excellent. Can be hung.

In this way, both the holes 10a and 10b are connected by the slit 4 only by drilling the round holes 10a and 10b with a drill or the like using the two auxiliary points 3a and 3b formed in the guide processing portion. The daruma hole 10 is formed. Therefore, even if the daruma hole 10 is not formed, the daruma hole 10 can be produced by simple processing, and the burden on the operator at the installation site can be reduced. Moreover, in the state where the daruma hole 10 is not formed, the opening is a small portion, and entry of dust or the like can be prevented. .
And since the slit 4 is formed to the position which reaches the right and left of the 1st auxiliary | assistant point 3a, when drilling a round hole using the 1st auxiliary | assistant point 3a, according to the width | variety of the slit 4, A hole can be satisfactorily produced simply by determining the diameter and being drilled, and at the same time, since it is connected to the slit 4, a daruma hole can be easily and accurately processed.
The auxiliary point for forming the round hole may not be a concave portion, but may be a hole having a diameter of about 2 mm.

  Although the said embodiment demonstrated the cabinet which accommodates an electric equipment, what is accommodated is not limited, The cabinet used for another use may be sufficient, The said guide process part is a metal plate of a cabinet. It can be applied well to the site where it is formed.

  1. ・ Main body, 2. ・ Guide processing part, 3. ・ Auxiliary point, 3a ・ ・ First auxiliary point, 3b ・ ・ Second auxiliary point, 4 ・ ・ Slit, 10 ・ ・ Daruma hole, 10a ・ ・ Small diameter Round hole, 10b ... Large diameter round hole.

Claims (2)

A cabinet provided with at least one guide processing portion for guiding the production of the daruma hole,
The guide processing portion includes a first auxiliary point for forming a small-diameter round hole that forms one end of the daruma hole, and a second auxiliary point for forming a large-diameter round hole that forms the other end of the daruma hole. Is formed by being recessed or drilled,
A pair of slits formed on both sides of a center line connecting both the auxiliary points are provided in parallel with the center line and with the same interval as the diameter of the small-diameter round hole to be formed. And cabinet. The cabinet according to claim 1, wherein the slit is formed to a position extending to the left and right of the first auxiliary point.

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