JP2000307264A - Case, metal fittings for disassembling case, and method for disassembling case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a case to be safely and easily disassembled and requiring no useless power in disassembling itself, such as a closure, a metal fittings for disassembling a case used for opening the case, and a method for disassembling a case using the case and the metal fittings for disassembling the case. SOLUTION: A method for disassembling cases comprises the steps of, putting the first disassembling metal fittings 21 and the second disassembling metal fittings 24 of a closure disassembling metal fittings 20 together and inserting them into a gap 10c, screwing a hexagonal-hole bolt 2b into a female screw section 23 of the first disassembling metal fittings 21 by inserting it into a hole 10f of a projecting section 10b of the case, screwing the hexagonal-hole bolt 2b in a manner which a projection section 10a of the case and a projection section 10b of a lid may leave, and disassembling the case.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing such as a closure for protecting internal machinery from an external environment, a housing disassembly fitting used to open and close the housing, and a housing disassembly fitting. The present invention relates to a housing disassembling method which is a method of disassembling a housing by using the housing disassembly method.

[0002]

2. Description of the Related Art A closure will be described as a conventional example of a housing. The closure is a machine (hereinafter, simply referred to as a machine) such as a cable or a connection unit related to electric power or telecommunication.
Is a storage device for housing the inside of the device and installing it outdoors, such as underground or underground. And the role of closures is
The purpose is to prevent the internal machinery from deteriorating due to gas, liquid, or solid entering the inside of the closure from the outside, and to prevent outflow of gas or the like injected into the closure for insulation or the like.

For this reason, it is necessary to maintain the waterproofness, drip-proofness, and airtightness of the closure (hereinafter, the performance of maintaining the waterproofness, drip-proofness, and airtightness is collectively referred to as airtightness). Rubber packing or the like is often used to maintain the airtightness of the closure. Rubber packing has excellent airtightness, is inexpensive, and is most often used.

[0004]

However, if the airtightness-enhanced closure is installed for a long period of time outdoors, such as underground or underground, the rubber packing is eroded from external environments such as water droplets. Change.
When it was necessary to open the closure, the rubber packing was sometimes welded to the closure, making it difficult to open the closure.

[0005] Further, when a flat screwdriver or the like is stabbed in a rubber packing or the like to open it, in addition to the rubber packing, the closure itself and the machinery housed inside the closure may be damaged. There has been a demand to easily open the closure without damaging the closure itself or the machinery housed inside the closure.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a housing for safely and easily disassembling a housing such as a closure without using unnecessary force when disassembling the housing such as a closure. An object of the present invention is to provide a housing disassembly metal fitting used for opening a housing and a housing dismantling method using the housing and the housing dismantling metal fitting.

[0007]

According to a first aspect of the present invention, there is provided a housing comprising a box portion and a lid portion, wherein the housing is sealed from an external environment to seal an internal storage portion. The body comprises a box projection projecting from the box to the outside and having a groove, and a cover projection projecting from the lid to the outside and having a groove, and the housing is formed using the box and the lid. When the body is closed, the box protrusion and the cover protrusion are arranged so as to face each other, and two grooves are arranged so that a gap is formed between the box protrusion and the cover protrusion that face each other. A hole penetrating the gap along the direction in which the box protrusion and the cover protrusion are arranged is provided in the box protrusion and / or the cover protrusion.

Further, according to the second aspect of the present invention, the first disassembly fitting provided with the screw hole, the screw inserted into the screw hole of the first disassembly fitting, and the tip of the screw are provided. And a second disassembly metal fitting for abutting the.

According to a third aspect of the present invention, there is provided the metal fitting for disassembling the casing according to the second aspect, wherein the screw is used for fastening a band and a lid of the casing. It is a bolt.

According to the housing disassembly method of the fourth aspect, the first disassembly metal fitting and the second disassembly metal fitting of the case disassembling metal fitting of the second or third aspect are overlapped. The screw is screwed into the screw hole of the first disassembly fitting while being inserted into the gap of the body and inserted through the hole of the box protrusion or the cover protrusion, and the box protrusion and the cover protrusion are aligned. The box is separated from the lid by screwing so as to be detached, and the housing is disassembled.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a description will be given of a closure which is an embodiment of the housing of the present invention. FIG. 1 is a configuration diagram showing the overall configuration of the closure according to the embodiment, FIG. 2 is a cross-sectional view taken along line AA of the closure according to the embodiment, FIG. 3 is a side perspective view of the closure according to the embodiment, and FIG. 5 is a side perspective view when the closure according to the present embodiment is disassembled, and FIG.
FIG. 3 is an enlarged view of a disassembled portion of the closure according to the embodiment.

A closure which is an embodiment of the housing of the present invention is formed by combining a box closure corresponding to the box of the present invention and a lid closure corresponding to the lid of the present invention. In the present embodiment, the box closure and the lid closure are a semi-cylindrical shape obtained by dividing the sleeve into halves on a plane through which the bottom diameter of the cylindrical sleeve passes, and include the box closure and the lid closure. Are both semi-cylindrical and have substantially the same shape.

The closure 1 is constructed by combining a box closure 1a and a lid closure 1b. As shown in FIG. 1, a half-cylindrical box closure 1a and a lid closure 1b are combined to form a completely cylindrical sleeve. And this sleeve, closure 1
Are fastened and fixed by four fastening portions 2, 3, 4, and 5, thereby fixing the closure 1. As shown in FIG. 2, these fastening portions 2 to 5 are specifically configured to fix the fastening band 2 a by tightening the fastening band 2 a with a hexagon socket head bolt 2 b.

A housing 6 is provided inside the closure 1 as shown in FIG. Machines (not shown) are arranged in the storage unit 6. In the present embodiment, it is assumed that a connection portion of a communication cable such as an optical fiber cable or a metal cable is arranged. The communication cable is inserted through communication cable holes 7 and 8 provided on both right and left sides as viewed in FIG. 1 via an end face rubber packing (not shown) and wired to the connection portion. The communication cable holes 7, 8 and the communication cable (not shown) are kept airtight by rubber packing at the end face.

In order to maintain the airtightness of the storage portion 6 of the closure 1, a closure packing 9 is placed in the packing mounting groove as shown in FIG. 2 in addition to the end face rubber packing. The closure packing 9 is made of an elastic material such as rubber or synthetic resin. Fastening part 2
Since the closure 1 is strongly fastened and fixed by the steps (5) to (5) so that the closure packing 9 is deformed, it is possible to avoid a situation in which a gap is formed at the joint between the box closure 1a and the lid closure 1b, and the airtightness is broken. Is done.

On the left and right sides of the closure 1, in addition to the communication cable holes 7, 8, a disassembly section 10 is provided. Hereinafter, assuming that the left and right sides of the closure 1 have the same shape, only the disassembly section 10 provided on one side will be described with reference to FIGS. 3 and 4, and the other description will be omitted. As shown in FIGS. 3 and 4, the disassembly section 10 of the closure 1 has a box closure 1 a.
And a lid projection 10b projecting from the lid closure 1b.

The box protrusion 10a and the cover protrusion 10b are formed in a substantially H shape, and as shown in FIGS. 4 and 5 (a), the box protrusion 10a, the cover protrusion 10b Are provided at respective positions facing each other. Box closure 1
a and the lid closure 1b are assembled into the closure 1, the disassembly section 10 has a gap 10 as shown in FIG.
c is formed. The gap 10c is formed between the side wall 10d and the groove bottom 1
0e, and a hole 10f is provided to penetrate the groove bottom 10e as shown in FIGS. 5 (a) and 5 (b). In FIGS. 3 and 4, the illustration of the hole 10f is omitted to avoid complication. The disassembly unit 10 is configured as described above.

Next, a description will be given of a closure disassembly fitting which is an embodiment of the housing disassembly fitting of the present invention. FIG. 6 is a configuration diagram showing the entire configuration of the closure disassembly fitting according to the present embodiment. FIG. 6A shows an embodiment of a closure disassembly fitting. In the closure disassembly fitting 20, the first disassembly fitting 21 is a metal plate such as stainless steel, and has a hole 22 as a drilled hole and a screw hole 23 as a screw hole. The second disassembly metal fitting 24 is a metal plate such as stainless steel, and has only the hole 22 that is a drilled hole.

In the screw hole 23 provided in the first metal fitting 21, the hexagon socket head cap screw 2
b to 5b can be screwed. After disassembling the fastening parts 2 to 5 using a hexagon wrench (not shown), one of the hexagon socket head bolts 2b to 5b is selected and attached. A discrete prevention pin 25 as a discrete prevention unit is inserted into the hole 22 of the first metal fitting 21 and the second metal fitting 24.
Thereby, the situation where the first metal fitting 21 and the second metal fitting 24 are separated and the location becomes unknown is prevented.

FIG. 6B shows another embodiment of the metal fitting for disassembling the closure. In the above-described embodiment, the discrete prevention pin 25 is used as the discrete prevention unit. However, in the closure disassembly fitting 20 of the present embodiment, the discrete prevention ring 26 is used as the discrete prevention unit. The present invention can be implemented even in this manner. In addition, as the discrete prevention unit,
Strings, wires and the like can be used. Instead of the hexagon socket head cap bolt 2b used for fastening, a hexagon socket head cap bolt (not shown) provided exclusively for disassembly may be used as a closure disassembly bracket which is always screwed into the screw hole 23 of the first bracket 21. In this way, the separation is prevented. Which hexagon socket head bolt to use is appropriately selected

Next, as an embodiment of the housing disassembly method of the present invention, a closure disassembly method using the closure and the closure disassembly fitting of this embodiment will be described. 7, 8 and 9 show the closure disassembly fitting 2
It is explanatory drawing explaining the closure disassembly method using 0. The closure disassembly fitting 20 is inserted along the direction indicated by the arrow a in FIG. 7 into the closure 1 in which the closure packing is welded and the disassembly is difficult with the fastening portions 2 to 5 removed. The metal fitting 20 for disassembling the closure is arranged in the gap 10c.

After arranging the closure disassembly bracket 20,
A hexagon socket head bolt (in the present embodiment, for example, a hexagon socket head bolt 2b) that has been used for fastening the closure 1 is screwed into the screw hole 23 of the first disassembly metal fitting 21, and FIG. Feed the screw as shown. In this case, the hexagon socket head cap screw 2b is inserted into one of the holes 10f of either the box projection 10a or the lid projection 10b. In FIG. 8, since the side into which the first disassembly metal fitting 21 is inserted is on the upper side, the hole 10f of the lid projection 10b is used.

In this state, when the hexagonal socket head bolt 2b is rotated using a hexagonal wrench (not shown) and the hexagonal socket head bolt 2b is screwed in the direction of arrow b in FIG. 8, the first disassembly bracket 21, the second bracket No. 24 tends to rotate by a reaction force to the rotation force of the hexagon socket head cap screw 2b. However, rotation is prevented by contacting the side wall 10d of the box protrusion 10a and the lid protrusion 10b.

Then, as the screw feed of the hexagon socket head cap screw 2b proceeds, the groove bottom 10e of the box projection 10a is closed by the second disassembling metal fitting 24, and the groove bottom 10e of the lid projection 10b.
Are respectively pressed by the first metal fittings 21 to move up and down, and the welded packing 9 for the closure, the box closure 1a and the lid closure 1b are peeled off. Finally, as shown in FIG. 9, the box closure 1a and the lid closure 1b are completely separated from each other and the disassembly operation is completed.

With the closure 1 and the closure disassembly fitting 20 having such a configuration, by applying a small rotational force to the hexagon socket head cap screw 2b, it can be converted into a large force for disassembly and applied. Can be performed easily and reliably. The box projection 10a and the lid projection 1
0b is provided directly with a screw hole or the hexagon socket head bolt 2b is contacted via a metal fitting so that the tip of the bolt does not directly contact, so that the box projection 10a and the lid projection 10b may be damaged during disassembly. Is prevented.

As described above, according to the present embodiment, even if the closure packing 9 is welded and it becomes difficult to disassemble the closure 1, the closure 1 can be disassembled safely and reliably without being damaged. A closure, a closure disassembly fitting, and a closure disassembly method can be provided.

In the present embodiment, the case where the housing is a cylindrical closure has been particularly described, but it is needless to say that the housing may have another shape. For example, although not shown, the box may be a rectangular parallelepiped box and the lid may be a flat plate. Examples of such a housing include a closure for accommodating a connection portion of a communication cable or an optical fiber or a surplus portion, and an optical fiber composite cable, which is a cable in which an optical fiber is combined with an overhead ground wire installed in an overhead transmission line. There is a housing of an OPGW optical connection box provided for an overhead ground wire (OPGW).

The box may be a cylindrical body having a bottom, and the lid may be a disk. As such a housing, there is a housing of a protector for protecting against a lightning surge and an induced voltage that enter from a transmission line. As described above, the housing, the housing disassembly fitting, and the housing disassembly method of the present invention can be used in various housings that require airtightness without being limited to the closure. The lid and the box of the housing can be designed in various shapes.

Further, in the present embodiment, the case where the sleeve is formed in a cylindrical shape, and the case where the disassembly portion including the box protrusion and the cover protrusion is provided on the upper surface and the lower surface of the sleeve has been described. However, the disassembly portion is not limited to the upper surface portion or the lower surface portion, and the disassembly portion may be provided on the outer peripheral side surface portion of the sleeve. The disposition of the disassembly section is appropriately selected.

[0030]

As described above, according to the present invention, when disassembling a housing such as a closure, no unnecessary force is required, the housing can be safely and easily disassembled, and the housing is used for opening the housing. A housing disassembly metal fitting and a housing disassembly method using the housing and the housing dismantling metal fitting can be provided.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating an overall configuration of a closure that is an embodiment of a housing of the present invention.

FIG. 2 is a sectional view taken along line AA of a closure as one embodiment of the housing of the present invention.

FIG. 3 is a side perspective view of a closure as one embodiment of the housing of the present invention.

FIG. 4 is a side perspective view when a closure as one embodiment of the housing of the present invention is disassembled.

FIG. 5 is an enlarged view of a disassembled portion of a closure as one embodiment of the housing of the present invention.

FIG. 6 is a configuration diagram showing an overall configuration of a closure disassembly fitting according to an embodiment of the present invention.

FIG. 7 is an explanatory diagram illustrating a closure disassembly method using the closure disassembly fitting according to the embodiment of the present invention.

FIG. 8 is an explanatory diagram illustrating a closure disassembly method using the closure disassembly fitting according to the embodiment of the present invention.

FIG. 9 is an explanatory diagram illustrating a closure disassembly method using the closure disassembly fitting according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Closure 1a Box closure 1b Lid closure 2,3,4,5 Fastening part 2a Fastening band 2b Hexagon socket head cap screw 6 Storage part 7,8 Communication cable hole 9 Closure packing 10 Dismantling part 10a Box protrusion 10b Lid projection 10c Gap 10d Side wall 10e Groove bottom 10f Hole 21 First disassembly fitting 22 Hole 23 Screw hole 24 Second dismantling fitting 25 Discrete prevention pin 26 Discrete prevention ring

 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Atsushi Aizawa 1-2-2 Oshima, Koto-ku, Tokyo F-term (reference) 3C030 BA02 3C031 EE31 4E360 AA03 AB12 AB33 BC07 BD03 BD05 ED03 ED29 ED30 FA20 GA06 GA23 GA29 GA47 GB21

Claims (4)

[Claims] 1. A housing comprising a box portion and a lid portion, which is shielded from an external environment and hermetically seals an internal storage portion, wherein a box portion projection portion protruding from the box portion to the outside and having a groove portion; And a lid protrusion that has a groove and protrudes to the outside, and is arranged such that the box protrusion and the cover protrusion face each other when the housing is closed using the box and the cover. A hole penetrating the gap along a direction in which the box projection and the lid projection are arranged such that a gap is formed between the opposing box projection and the lid projection. The housing is characterized in that the portion is provided on the box protrusion and / or the lid protrusion. A first disassembly fitting provided with a screw hole, a screw inserted into the screw hole of the first disassembly fitting, and a second disassembly fitting for abutting a tip of the screw. A housing disassembly fitting characterized by the above-mentioned. 3. The housing disassembly metal fitting according to claim 2, wherein the screw is a bolt for a fastening band for fastening a box part and a lid part of the housing. 4. The first disassembly metal fitting and the second disassembly metal fitting of the housing disassembly metal fitting according to claim 2 or 3 are overlapped.
Screw into the screw hole of the first disassembly fitting while inserting the screw into the hole of the box protrusion or the cover protrusion, thereby inserting the box protrusion and the cover protrusion. A housing disassembly method, comprising: disassembling the housing by screw-feeding to separate the housing and the lid from each other.