JP2020088167A - cabinet - Google Patents

Abstract

To provide a cabinet in which the thickness of a packing does not become a predetermined amount or less when closed with a lid plate.SOLUTION: A drainer frame 12 is provided around an opening 11 of a main body 10, and a flat contact surface 12a is formed on the drainer frame 12 to which a packing 21 adheres, and an edge portion 12b obtained by extending the contact surface 12a is formed around the contact surface 12a, and the edge portion 12b is bent in the direction of a lid plate 20 and has a certain protrusion amount W, and the end portion thereof can be brought into contact with the back surface of the closed lid plate 20, and the edge portion 12b is brought into contact with the back surface of the closed lid plate 20 to prevent the thickness of the packing 21 that is in close contact with the contact surface 12a from becoming a predetermined amount or less.SELECTED DRAWING: Figure 3

Description

The present invention relates to a cabinet for housing equipment such as electric equipment and communication equipment, and more particularly to a cabinet configured to provide packing on a rear surface of a lid plate that closes an opening so as to prevent rainwater and dust from entering the interior and seal the enclosure.

The cabinet that houses electrical and communication equipment has a large opening on the front side that is open to facilitate the storage and operation of equipment, and the cabinet body is hinged to form an open body. There are those having a lid plate for closing the opening of the cabinet body (for example, refer to Patent Document 1), and those having a structure in which a lid plate separable from the cabinet body is screwed and closed to the cabinet body (for example, , Patent Document 2).
Such a cabinet has packing around the back of the lid plate to prevent rainwater from entering when it is installed outdoors and to prevent dust from entering when it is installed indoors. It is configured so that there is no gap in.

JP, 2010-272723, A JP, 2004-103938, A

Since the packing is made of foamed rubber material, it has elasticity and closes the gap well.However, due to deformation caused by cabinet manufacturing variations, lid plate shoulder drop, stress at sealing, etc., part of the packing May be compressed significantly, and if so, the thickness of the packing may not be restored due to the fatigue of the packing, and the function as the packing may be lost.
In particular, in the structure in which the cover plate is screwed like the cabinet of Patent Document 2, a strong stress is easily applied to the packing, and in that case, the deterioration is rapid.

Therefore, in view of such problems, an object of the present invention is to provide a cabinet in which the thickness of the packing does not become a predetermined amount or less when closed by the cover plate.

In order to solve the above-mentioned problems, the invention of claim 1 has a cabinet body having an opening at least on the front surface and a lid plate that closes the opening, and packing is provided around the back surface of the lid plate. A cabinet capable of sealing the opening when closed, wherein a draining frame is provided around the opening of the cabinet body, and a flat contact surface is formed on the draining frame to which the packing adheres. An edge extending from the contact surface is formed on the entire periphery of the contact surface or at an appropriate portion, and the edge is bent toward the lid plate and has a certain amount of protrusion, and the lid is closed at its end. By making it possible to contact the back surface of the plate and contacting the edge portion with the back surface of the lid plate, it is possible to prevent the thickness of the packing that is in close contact with the close contact surface from falling below a predetermined amount.
According to this structure, the distance between the contact surface of the draining frame and the back surface of the cover plate is prevented from becoming a predetermined amount or less due to the amount of protrusion of the edge portion, so that the packing can be prevented from being greatly compressed, and the packing can be prevented. Can be prevented from deteriorating.

According to a second aspect of the present invention, in the structure according to the first aspect, a screw hole is provided in an appropriate portion of the contact surface, and a screw insertion hole is provided in a portion of the cover plate corresponding to the screw hole. Can be screwed and fixed to the cabinet body, and the edge portion is provided at least in the vicinity of the screw hole.
According to this configuration, even if the lid plate is screwed to the cabinet body, the thickness of the packing does not fall below the predetermined amount. Therefore, deterioration of the packing can be prevented.

The invention of claim 3 has a cabinet main body having an opening at least on the front surface, and a lid plate that closes the opening, and packing is provided around the back surface of the lid plate to seal the opening when closed. In the cabinet, a draining frame is provided around the opening of the cabinet main body, and a flat contact surface is formed on the draining frame to which the packing adheres, while being adjacent to the packing of the lid plate. A concave portion, which has a certain amount of indentation and comes into contact with the contact surface when closed, is formed in an appropriate portion or in a continuous shape in the portion, and the concave portion abuts the contact surface, so that the packing tightly adheres to the contact surface. Is prevented from falling below a predetermined amount.
According to this configuration, the recess formed in the lid plate prevents the distance between the contact surface of the draining frame and the back surface of the lid plate from becoming less than or equal to a predetermined amount, and it is possible to prevent the packing from being significantly compressed. Can be prevented from deteriorating.

According to a fourth aspect of the present invention, in the structure according to the third aspect, a screw hole is provided at a timely portion of the contact surface, and a screw insertion hole is provided at a portion corresponding to the screw hole of the lid plate. Can be screwed and fixed to the cabinet body, and the screw insertion hole is formed in the recess.
According to this structure, even if the lid plate is screwed to the cabinet body, the thickness of the packing does not become a predetermined amount or less due to the presence of the recess. In addition, even if the lid plate is screwed and sealed to the draining frame, the screwing portion comes into close contact with the close contact surface, so that the lid plate is not distorted by the pressing force due to the screw tightening.

According to the present invention, the protrusion amount of the edge portion or the concave portion of the lid plate keeps the distance between the close contact surface of the draining frame and the back surface of the lid plate constant, so that the packing can be prevented from being largely compressed. It is possible to prevent deterioration of packing.

It is a front explanatory view showing the 1st form of a cabinet, and the left half shows a cover plate through it. In the bottom view of FIG. 1, the left half shows a cross section taken along the line AA. It is a B section enlarged view. It is a front explanatory view showing the 2nd form of a cabinet, and the left half shows the cover plate through it. In the bottom view of FIG. 4, the left half shows a cross section taken along the line CC. It is a D section enlarged view. It is sectional explanatory drawing which shows the other structure of a screwing part.

Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. 1 to 3 show a first embodiment of a cabinet according to the present invention, FIG. 1 is a front explanatory view of the cabinet, and a left half is an explanatory view in which a cover plate is seen through. FIG. 2 is a bottom view of the cabinet, and the left half is taken along the line AA. FIG. 3 is an enlarged view of part B.

The cabinet 1 is formed by bending a steel plate, and has a cabinet main body (hereinafter, simply referred to as “main body”) 10 having an opening formed on the entire front surface, and a lid plate 20 that closes the opening 11 on the opened front surface. The cover plate 20 is separable from the main body 10.

The main body 10 has a back plate 10a, left and right side faces 10b, a bottom face 10c, and a top face 10d around the back plate 10a, and is largely open to the front face. A draining frame 12 is provided around the opening 11 formed on the front surface.
The draining frame 12 is formed by bending the side surface of the main body 10 in a U shape and is uniformly formed around the opening 11. The front surface formed so as to spread outward is formed flat and constitutes a contact surface 12a with which the packing 21 provided on the cover plate 20 adheres.

Further, an edge portion 12b is continuously formed around the contact surface 12a, and the edge portion 12b is formed so as to project further forward from the contact surface 12a. Specifically, the edge portion 12b is bent forward at a right angle to the contact surface 12a as shown in FIG. 3, and has a constant width (protrusion amount W). The edge portion 12b is uniformly formed on each of the four sides having the contact surface 12a.

On the other hand, the cover plate 20 has a flat front surface 20a and a side surface 20b formed by bending the periphery of the front surface 20a, and a packing 21 is provided around the rear surface along the side surface 20b. The packing 21 is made of foamed rubber and has elasticity and flexibility, and is provided around the side surface 20b at a certain distance so as to come into contact with the contact surface 12a. When the opening 11 is attached to the main body 10 and is closed, the opening 11 is closely attached to the opening 11.

Further, the cover plate 20 has a screwing portion 22 and is screwed and fixed to the main body 10, and is completely separated from the main body 10 by removing the screw. The screwing portion 22 is provided on the outside of the packing 21, and a screw insertion hole 22a for screwing the cover plate 20 to the main body 10 is formed at an appropriate portion. Here, they are provided at four corners and eight places in total at the center of each side.
On the other hand, a screw hole 13 is formed in the main body 10 corresponding to the screw insertion hole 22a. The screw hole 13 is formed on the contact surface 12a that is outside the portion where the packing 21 is in contact.

The width (protrusion amount W) of the edge portion 12b is set so that the packing 21 of the lid plate 20 is in close contact with the contact surface 12a and compression of a predetermined amount or more is not performed. The end of the edge portion 12b is brought into contact with the back surface of the cover plate 20, whereby the distance between the cover plate 20 and the contact surface 12a is regulated so as not to be W or less. As a result, the packing 21 is prevented from being compressed by a predetermined amount or more.

Thus, in order to prevent the distance between the contact surface 12a of the draining frame 12 and the back surface of the cover plate 20 from becoming less than a certain value due to the protrusion amount W of the edge portion 12b, the cover plate 20 or the like is deformed and the cover is closed. Even if the space between the plate 20 and the main body 10 becomes non-uniform, it is possible to correct the deformation and prevent the packing 21 from being greatly compressed, and prevent the packing 21 from deteriorating.
Further, even if the lid plate 20 is screwed to the main body 10 and a strong adhesion force is generated between the lid plate 20 and the main body 10, the thickness of the packing 21 does not become a predetermined amount or less, and the packing 21 deteriorates. Can be prevented.

FIG. 7 shows another example of the screwing portion 22 and the edge portion 12b. In FIG. 7, the screw hole 13 provided in the contact surface 12a is formed by disposing the nut 4. Further, the bending angle of the edge portion 12b is approximately 30 degrees.
In this way, by forming the screw holes 13 of the draining frame 12 by fixing the nuts 4, it is possible to make the structure robust against screw tightening. Further, the bending angle of the edge portion 12b does not have to be a right angle, and may be about 30 degrees in this way, or may be another angle.

Although the edge portion 12b is uniformly formed on each side, it may be formed at least in the vicinity of the screwing portion 22 and may not be uniformly provided on each side.

4 to 6 show a second form of the cabinet. FIG. 4 is a front explanatory view of the cabinet 1, and the left half is an explanatory view in which the cover plate 20 is seen through. FIG. 5 is a bottom view of the cabinet 1, and the left half is taken along the line CC. FIG. 6 is an enlarged view of part D. ..
This embodiment is different from the above-described embodiment in that the contact surface 12a of the draining frame 12 is not provided with an edge portion, and the cover plate 20 side is provided with a structure for keeping the distance from the main body 10 constant. I will explain mainly. However, common components are assigned the same reference numerals and explanations thereof are omitted.

The cabinet 1 has a main body 10 and a cover plate 20 that closes the opening 11 formed in the front surface of the main body 10, as in the above-described embodiment, and the cover plate 20 can be separated from the main body 10. Further, the opening 11 is provided with a draining frame 12 on the periphery thereof, and a contacting surface 12a to which the packing 21 provided on the lid plate 20 is closely attached is provided on the draining frame 12, and the packing 21 is provided on the back surface of the lid plate 20. Are installed around.

However, the screwing portion 22 for screwing the cover plate 20 to the main body 10 is provided in the recess 23 when the screw insertion hole 22 a provided in the cover plate 20 forms a circular recess 23 in the cover plate 20. ing. The recess 23 is formed on the outside of the packing 21 and has a certain depth so that the rearward protruding amount W becomes a predetermined amount.
A screw hole 13 is formed in the contact surface 12a of the corresponding main body 10, and the screw fastening portions 22 are provided at a total of eight places at the four corners and the center of each side.

The protrusion amount W of the recess 23 is set so that the packing 21 of the lid plate 20 is in close contact with the contact surface 12a and compression of a predetermined amount or more is not performed, and the back surface of the recess 23 contacts the contact surface 12a, as in the above embodiment. By making contact with each other, the distance between the cover plate 20 and the contact surface 12a is regulated so as not to fall below a predetermined amount. As a result, the thickness of the packing 21 is prevented from being compressed to a predetermined amount or less.

In this way, the packing 21 is prevented from being largely compressed in order to prevent the distance between the contact surface 12a of the draining frame 12 and the back surface of the cover plate 20 from becoming smaller than a predetermined amount by the recess 23 formed in the cover plate 20. It is possible to prevent the deterioration of the packing 21.
Even if the lid plate 20 is screwed to the main body 10, the thickness of the packing 21 does not become a predetermined amount or less due to the presence of the recess 23, and the lid plate 20 is screwed to the draining frame 12 and sealed. Since the screwing portion 22 comes into close contact with the close contact surface 12a, even if the cover plate 20 is corrected by the pressing force due to the screw tightening, it is not distorted.

Although the recess 23 is formed in a circular shape centering on the screw insertion hole 22a, the formation portion of the recess 23 is not limited to the screw fastening portion 22, and may be formed linearly including the screw fastening portion 22. However, they may be continuously formed along the packing 21.
Further, in the above-described embodiment, the lid plate 20 is screwed, but the lid plate 20 may be hinged to the main body 10 and the handle may be arranged at the open end to be closed by operating the handle. By applying the configuration in which the portion 12b is provided in the draining frame 12 or the configuration in which the recess 23 is provided in the lid plate 20, extreme compression of the packing 21 can be limited.
Further, although the lid plate 20 is arranged only on the front surface of the main body 10, when the lid plate which has an opening portion on the side surface of the main body and is closed is also used, the same applies to the packing provided on the lid plate. The above configuration can be applied to.

1... Cabinet, 10... Main body (cabinet body), 11... Opening part, 12... Draining frame, 12a... Adhesive surface, 12b... Edge part, 13... Screw hole, 20... Lid plate, 21...Packing, 22...Screw fastening part, 22a...Screw insertion hole, 23...

Claims (4)

It has a cabinet main body having an opening at least on the front surface, and a lid plate that closes the opening, and packing is provided around the back surface of the lid plate to enable the opening to be closed when closed. A cabinet,
A draining frame is provided around the opening of the cabinet body, and a flat contact surface is formed on the draining frame to which the packing adheres.
An edge extending from the contact surface is formed on the entire periphery of the contact surface or at an appropriate portion,
The edge portion is bent and formed in the lid plate direction to have a certain amount of protrusion, and the end portion can be brought into contact with the back surface of the lid plate,
A cabinet characterized in that the thickness of the packing that is in close contact with the close contact surface is prevented from falling below a predetermined amount by contacting the back surface of the lid plate with the edge portion. A screw hole is provided in an appropriate portion of the contact surface, and a screw insertion hole is provided in a portion of the lid plate corresponding to the screw hole, and the lid plate can be screwed and fixed to the cabinet body. ,
The cabinet according to claim 1, wherein the edge portion is provided at least in the vicinity of the screw hole. It has a cabinet main body having an opening at least on the front surface, and a lid plate that closes the opening, and packing is provided around the back surface of the lid plate to enable the opening to be closed when closed. A cabinet,
A draining frame is provided around the opening of the cabinet body, and a flat contact surface on which the packing is in close contact is formed on the draining frame,
In a portion of the lid plate adjacent to the packing, a concave portion having a certain amount of dent and abutting against the contact surface when closed is formed in an appropriate portion or in a continuous shape,
A cabinet characterized in that the thickness of the packing that is in close contact with the contact surface is prevented from falling below a predetermined amount by the contact of the recess with the contact surface. A screw hole is provided in a timely portion of the contact surface, and a screw insertion hole is provided in a portion of the lid plate corresponding to the screw hole, and the lid plate can be screwed and fixed to the cabinet body. ,
The cabinet according to claim 3, wherein the screw insertion hole is formed in the recess.

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