JPH11191678A - Case structure and its disassembly method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent disassembly treatment efficiency from deteriorating when recycle treatment is made by providing a plurality of recessed parts which are formed thinly around a part near the root of a boss for fixing and a rib for separating the recessed parts in case structure for joining the upper and lower cases of a molding by the boss for fixing and a fixing screw. SOLUTION: In a case structure in which upper and lower cases 10 and 20 formed by a molding are joined, a plurality of bosses 11 for fixing are normally formed inside the upper case 10. At the boss 11 for fixing, a hole 12 and a ceiling surface 13 are provided at a center part and a tip part, respectively. Then, a plurality of recessed parts 14 which are formed thinly and a rib 15 for separating the recess parts 14 are provided around a part near a root, thus easily separating the boss 11 for fixing from the case 10 and quickly and surely performing the disassembly treatment of recycling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing structure in which electronic devices and the like are easily disassembled for recycling and a disassembly method thereof.

[0002]

2. Description of the Related Art Conventionally, a housing structure in which two upper and lower cases formed of a molded product are fastened with fixing bosses and fixing screws, and two inner and outer cases formed of a metal plate are fixed with fixing screws and screw holes. The housing structure to be fastened is often used for electronic devices, home electric appliances and the like.

[0003]

However, in the conventional housing structure, when the recycling process is performed, the fixing screw cannot be turned by a screwdriver due to corrosion of the fixing screw, or the groove of the head of the fixing screw is not formed. It was so bad that it couldn't be turned by a driver, and it was troublesome to disassemble. In severe cases, disassembly was sometimes very difficult.

[0004] In such a case, there have been problems such as an increase in the cost of the decomposition treatment and a decrease in the efficiency of the decomposition treatment.

[0005]

In order to solve the above-mentioned problems, in the case of a housing structure in which the upper and lower cases of a molded product are fastened to fixing bosses with fixing screws, a plurality of thin walls are formed around the root of the fixing boss. The formed concave portion and a rib for separating the concave portion are provided.

In the case of a housing structure in which the inner and outer cases of a metal plate are fastened by a fixing means, a plurality of holes and a rib for separating the holes are provided around the fixing means of the outer case, and a position visible from the holes of the outer case. A plurality of holes and a rib separating the holes are provided around the fixing means of the inner case.

The fixing boss or the fixing means can be separated from the case.

[0008]

FIG. 1 is a sectional view of a main part of a first embodiment of the present invention, and FIG. 2 is an exploded partial cross-sectional perspective view of a fastening portion of the first embodiment.

The first embodiment has a housing structure in which an upper case 10 and a lower case 20 formed of a molded product are fastened.
Usually, a plurality of fixing bosses 11 are formed inside the upper case 10.

The fixing boss 11 has a hole 12 at the center and a top surface 13 at the tip, and a plurality of thin recesses 14 formed around the base and ribs 15 for separating the recesses 14.
Is provided.

A receiving boss 21 is formed in the lower case 20 at a position facing the fixing boss 11, and a hole 22 and a recess 23 into which a fixing screw 30 is inserted are provided in the center of the receiving boss 21. Is provided with a top surface 24.

In order to fasten the upper case 10 and the lower case 20, the top surface 13 of the fixing boss 11 and the top surface 24 of the receiving boss 21 are aligned as shown in FIG.
The boss 11 is inserted into the recess 23, further penetrated through the hole 22, and screwed into the hole 12 of the fixing boss 11 to be fixed.

When the life of the product is completed, a decomposition process is performed for recycling. In this case, it is sufficient that the fixing screw 30 is removed, but the fixing screw 30 is corroded and cannot be turned with a screwdriver. Therefore, the fixing screw 30 is pressed down from below with a rod-like shape, and the cylindrical destruction shown in FIG. A recess 14 in which a jig 40 is provided around a fixing boss 11 of the upper case 10
Then, the concave portion 14 and the rib 15 are cut by hitting with a hammer.

As a result, the fixing boss 1 is removed from the upper case 10.
1 can be separated, the upper case 10 and the lower case 20 can be opened, and the housing can be disassembled.

The reason why the ribs 15 are formed in the concave portions 14 of the fixing boss 11 is to improve the fluidity when resin is poured by a molding machine at the stage of manufacturing the upper case 10. After the lower case 20 is fastened to the fixing boss 11 and the receiving boss 21 with the fixing screw 30, the lower case 20 is also for reinforcing against an external force received by the housing during transportation and use.

In the above description, the upper case and the lower case are used. However, it is needless to say that the front side corresponds to the upper case and the rear side corresponds to the lower case in the wall-mounted type. .

As described above, according to the first embodiment,
By providing a plurality of thin concave portions 14 and a rib 15 for separating the concave portions 14 around the root of the fixing boss 11 of the molded product, the fixing boss 11 can be easily separated from the case 10 and disassembled for recycling. An effect that the processing can be surely performed in a short time can be expected. In addition, the molded product has a concave portion 14
It is not necessary to make a hole only by providing a hole, so that an effect of maintaining a good appearance can be expected.

FIG. 3 is a cross-sectional view of a main part of a second embodiment of the present invention, and FIG. 4 is an exploded partial cross-sectional perspective view of a fastening portion of the second embodiment.

The second embodiment has a housing structure in which an outer case 50 and an inner case 60 formed of a metal plate are fastened.
A fixing means for fixing with the fixing screw 70 and the screw hole 62 provided in the inner case 60 is employed.

A plurality of mounting holes 52 are provided in the side surface 51 of the outer case 50, and a plurality of holes 53 are formed around the mounting holes 52.
Is provided.

On the side surface 61 of the inner case 60, the outer case 5
A screw hole 62 is provided at a position opposing the mounting hole 52 of the “0”, and a plurality of holes 63 and a rib 64 for separating the hole 63 are provided around the screw hole 62.

The holes 63 and ribs 64 of the inner case 60 are provided at positions visible from the plurality of holes 53 of the outer case 50.

To fasten the outer case 50 and the inner case 60, the side surface 51 of the outer case 50 and the side surface 61 of the inner case 60 are aligned as shown in FIG. The screw 70 is screwed into the screw hole 62 and fixed.

When the life of the product is completed, a decomposition process is performed for recycling. In this case, the fixing screw 70 only needs to be removed, but since the fixing screw 70 is corroded and cannot be turned with a screwdriver, the rib 54 of the outer case 50 provided around the fixing screw 70 and the inner case 60 that can be seen from the hole 53 The rib 64 is cut with a cutting tool such as a nipper.

Thus, the fixing screw 70 and the screw hole 62 are separated from the outer case 50 and the inner case 60, and the outer case 50 and the inner case 60 can be opened, so that the housing can be disassembled.

As described above, according to the second embodiment,
A plurality of holes 5 are provided around the mounting holes 52 of the outer case 50 made of a metal plate.
3 and a rib 54 for separating the hole 53 are provided.
A plurality of holes 63 and ribs 64 for separating the holes 63 around a screw hole 62 of the inner case 60 provided at a position facing
Are provided so that they can be seen through a plurality of holes 53 provided around the mounting holes 52 of the outer case 50,
The fixing means for fixing the fixing screw 70 and the screw hole 62 can be easily separated from 0, 60, and the effect that the disassembly process for recycling can be reliably performed in a short time can be expected.

In the above description, the fixing screw is employed as the fixing means. However, the fixing means may be caulking, rivets, welding or the like.

In this case, a plurality of holes and ribs for separating the holes are provided around the fixing means in the inner and outer cases, and when disassembling, the ribs may be cut in the same manner as described above.

[0029]

As described above, according to the present invention, in the case of a molded product, a plurality of recesses and ribs are provided around the root of the fixing boss, and in the case of a metal plate, a plurality of recesses and ribs are provided around the fixing means. By providing the holes and the ribs, the disassembly process for recycling can be performed reliably in a short time.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a first embodiment of the present invention.

FIG. 2 is an exploded partial cross-sectional view of the first embodiment.

FIG. 3 is a sectional view of a main part of a second embodiment of the present invention.

FIG. 4 is a partial cross-sectional exploded view of the second embodiment.

[Explanation of symbols]

 Reference Signs List 10 upper case 11 fixing boss 14 recess 15 rib 20 lower case 21 receiving boss 30, 70 fixing screw 40 destruction jig 50 outer case 52 mounting hole 53, 63 hole 54, 64 rib 60 inner case 62 screw hole

Claims (5)

[Claims] 1. A housing structure in which upper and lower cases formed by molding are fastened to fixing bosses with fixing screws, wherein a plurality of thin recesses are formed around the root of the fixing boss provided in the upper case. And a rib for separating the recess, and the fixing boss can be separated from the upper case. 2. The housing structure according to claim 1, wherein the fixing screw is pressed from below, and the concave portion and the rib are cut by hitting with a cylindrical breaking jig, and the fixing boss is removed from the upper case. A method for disassembling a housing, comprising separating the housing. 3. A housing structure in which an inner and outer case formed of a metal plate is fastened by a fixing means, wherein a plurality of holes and a rib for separating the holes are provided around the fixing means of the outer case. A plurality of holes and a rib separating the holes are provided around the fixing means of the inner case at positions visible from the holes, and the fixing means can be separated from the two cases. 4. A housing structure in which an inner and outer case formed of a metal plate is fastened with fixing screws and screw holes, a plurality of holes and a rib separating the holes are provided around a mounting hole provided in the outer case. Providing the screw hole at a position facing the mounting hole of the inner case, and providing a plurality of holes and a rib separating the hole around the screw hole of the inner case at a position visible from the hole of the outer case. A housing structure wherein the fixing screw and the screw hole fixing means can be separated from the two cases. 5. The housing structure according to claim 3, wherein the ribs of the outer case and the ribs of the inner case are cut with a cutting tool, and the fixing means is separated from the two cases. Disassembly method for the housing.