JPH0752034Y2 - Container joint structure - Google Patents

Description

[Detailed Description of the Invention] Overview In a storage container for electronic equipment or the like, a joint between a cylindrical storage container body and a pair of lid members is combined with a ridge and a recess for waterproofing and dustproofing. It is configured by. In this case, a protrusion is formed on the upper side, that is, the lower surface of the upper first lid member and the lower surface of the container body, and the lower side of the combination, that is, the upper surface of the container body and the second lid. A recess is formed in the upper surface of the member. Of the outer wall and the inner wall that form the recess, the inner wall is formed lower than the outer wall, and the joint surface between the container body and the lid member is assembled without a gap by the outer wall.

As a result, of the adhesive applied to the joint surface, the surplus in the upper part of the container body flows down along the inner peripheral surface of the container main body, and the surplus in the lower part of the container body is the second lid below. It is blocked by the second inner wall of the member. In this way, it is possible to prevent the adhesive from flowing out to the outer peripheral surface of the container body, improve the aesthetic appearance, and simultaneously heat the container body and the pair of lid members to complete the bonding step at once. .

INDUSTRIAL APPLICABILITY The present invention is applied to a cylindrical container body for housing electronic devices, etc.
The present invention relates to a structure for joining a pair of lid members using a thermosetting adhesive.

2. Related Art FIG. 5 is a sectional view of a typical prior art storage container 1. At both ends of the cylindrical container body 2, a pair of lid members 3 and 4 are provided.
Are airtightly adhered by the adhesive.

At one end of the container body 2, an outer wall 5a is provided upright over the entire circumference of the outer peripheral edge of the container body 2, and an inner wall 5b is provided upright over the entire circumference of the inner peripheral edge. Has been done. These walls
The annular groove 6 formed by 5a and 5b has the groove 6
After the thermosetting adhesive is filled in the vicinity, the protrusion 7 standing on the lid member 3 is fitted and heated.

Similarly, at the other end of the container body 2, the outer wall 8a and the inner wall
8b is provided upright, and the protrusion 10 that is provided upright on the lid member 4 is fitted into the groove 9 formed by these walls 8a and 8b. In this way, the electronic components stored in the storage container 1 are held airtight.

FIG. 6 is a cross-sectional view of another conventional storage container 11.
In this storage container 11, outer walls 13 and 14 are erected on both ends of the container body 12 over the entire circumference of the outer peripheral edge of the container body 12, respectively. The lid members 17 and 18 are fitted into the step surfaces 15 and 16 that are formed.

Problems to be Solved by the Invention In the storage container 1 shown in FIG. 5, the adhesive for joining the container body 2 and the lid members 3 and 4 has a high viscosity at room temperature,
By heating, the viscosity is once lowered, and then the resin is cured. Therefore, when the adhesive is sufficiently applied to secure the airtightness inside the container body 2 as described above, the outer walls 5a, 8
It flows out from between a and the lid members 3 and 4, and adheres to the outer peripheral surface of the container main body 2, impairing the appearance.

In the storage container 11 shown in FIG. 6, the excess adhesive is notched 19, formed in the outer peripheral edge of the lid members 17, 18.
It is stored in the concave grooves 21 and 22 formed by 20 and the outer walls 13 and 14, and the above-mentioned problems can be prevented.

However, in these two conventional techniques, a pair of lid members is used.
It is not possible to bond 3,4; 17,18 and the container bodies 2,12 at the same time, and this bonding process requires a relatively long time of 30 minutes to 1 hour.

On the other hand, in the method of fixing the lid members 3, 4; 17, 18 by screwing, the container main body 2, 12 needs a screw receiving portion, and the area of the substrate that can be stored becomes small. Furthermore, in such a structure, rubber packing or the like is required to provide a waterproof structure, and the number of parts increases.

An object of the present invention is to provide a container joint structure capable of reducing the number of parts and the number of manufacturing steps without impairing the aesthetics.

Means for Solving the Problems The present invention provides a structure in which a pair of lid members are joined to both openings of a tubular container body having both axial ends open, wherein the container body has a tubular side wall, A first outer wall that is erected over the entire circumference of the outer peripheral edge of one side end of the side wall, and a first inner wall that is formed inward of the first outer wall and has an axial height smaller than that of the first outer wall. And a first protrusion provided upright over the entire circumference of the inner peripheral edge of the other end of the side wall, wherein the first lid member attached to the one end is the first outer wall. A second lid member fitted into a recess defined by the first inner wall and the second inner end wall, and the second lid member mounted on the other end portion is formed over the entire circumference of the outer peripheral edge portion. An outer wall and a second inner wall that is erected at a position spaced apart from the second outer wall by at least the thickness of the first ridge, When a recess defined by a first inner wall,
After assembling the thermosetting adhesive into the recess defined by the second outer wall and the second inner wall of the second lid member and assembling the first lid member and the second lid member to the container body The bonding structure of the container is characterized in that the adhesive is cured by heating.

According to the present invention, a pair of lid members are joined to both openings of a tubular container body having both ends in the axial direction opened to form a container, and the joined portion is a combination of a ridge and a recess. Configured according to the combination.

An upper part of the combination, that is, a second ridge is provided upright on the first lid member arranged above, and over the entire circumference of the inner peripheral edge of the lower end of the container body, Establish the first ridge.

On the other hand, a first outer wall is provided on the lower side of the combination, that is, on the upper end of the container body, over the entire circumference of the outer peripheral edge, and a first inner wall is provided further inward than the first outer wall. To stand. In addition, similarly for the second lid member arranged below,
A second outer wall is provided upright over the entire circumference of the outer peripheral edge portion, and a second inner wall is erected at a position spaced from the second outer wall by at least the thickness of the first ridge. In this way, a recess is formed in the upper surface of the container body 2 and the upper surface of the second lid member. Among the outer wall and the inner wall forming the recess, the inner wall is formed lower than the outer wall.

After filling the entire circumference of this recess with a thermosetting adhesive,
The container body and the lid member are assembled together by the outer wall without any gap between the joint surfaces. The assembled container is heated to cure the adhesive. At this time, of the adhesive applied to the joint surface, the surplus in the upper portion of the container body flows down along the inner peripheral surface of the container body, and the surplus in the lower portion of the container body is the second portion.
It is blocked by the second inner wall of the lid member.

In this way, prevent the adhesive from flowing out to the outer peripheral surface of the container body,
The aesthetic appearance can be improved, and the container body and the pair of lid members can be heated at the same time with a simple structure, and the bonding step can be completed at once.

Embodiment FIG. 1 is an exploded perspective view of a storage container 31 according to an embodiment of the present invention, and FIG. 2 is a sectional view showing the storage container 31 assembled. The storage container 31 is made of aluminum or the like, and has a pair of lid members 33, 34 made of aluminum, synthetic resin, or the like in both openings of a cylindrical container body 32 having both ends in the axial direction opened.
Are constructed by joining.

At the upper end of the container body 32, an outer wall 35a is provided upright over the entire circumference of the outer peripheral edge portion, and an inner wall is provided inward of the outer wall 35a.
35b is erected. Similarly, an outer wall 36a is erected on the upper surface of the lid member 34 over the entire circumference of the outer peripheral edge portion, and an inner wall 36b is erected on the inner side of the outer wall 36a. The inner walls 35b and 36b are lower than the outer walls 35a and 36a, for example, the inner wall 36b is the outer wall 36a.
It is formed about 0.5 mm lower.

On the other hand, on the lower surface of the lid member 33, a protrusion 38 that is fitted in a groove 37 formed by the walls 35a and 35b is provided upright.
Similarly, at the lower end of the container body 32, a ridge 40 that is fitted in the groove 39 formed by the walls 36a and 36b is provided upright.
These ridges 38 and 40 are formed lower than the outer walls 35a and 36a, respectively. Further, the inner wall 36b is erected at a position where a gap W of, for example, about 0.5 mm can be generated in a state where the protrusion 40 is fitted in the concave groove 39.

The container body 32 and the lid members 33, 34 formed as described above
In the container body 32, the circuit board on which electronic components and the like have been mounted is fixed, and after an adhesive agent made of a material such as silicon is applied to the entire circumference in the vicinity of the concave grooves 37 and 39,
It is assembled. The assembled storage container 31 is heated in an atmosphere of about 120 ° C. for about 30 minutes to 1 hour.

At this time, the surplus adhesive near the upper end of the container body 32 flows out from the gap 45 between the inner wall 35b and the lid member 33, travels along the inner peripheral surface of the container body 32, and flows down into the concave groove 39. In addition, the excess adhesive near the lower end of the container body 32 is
It is stored inside.

In this way, the adhesive can be prevented from flowing out to the outer peripheral surface of the container body 32, and the appearance can be improved.
Moreover, the lid members 33 and 34 can be simultaneously joined to the container body 32, and the number of steps can be reduced. Furthermore,
By sufficiently filling the adhesive, the inside of the storage container 31 can be kept airtight, without using other parts such as packing, and screwed as described in the section of the prior art. The structure can be simplified as compared with the structure, and the storage space can be expanded.

FIG. 3 is a sectional view of a storage container 51 according to another embodiment of the present invention. This embodiment is similar to the above-mentioned embodiment, and the same reference numerals are attached to corresponding parts. In this embodiment, the inner wall 36
While b is arranged apart from the ridge 40 by a gap W, the gap W is made smaller and an inclined surface 52 is formed at the tip of the ridge 40.

Accordingly, as in the above-described embodiment, the adhesive does not flow out from the joint surface between the outer wall 36a and the container body 32, and the adhesive can be stored in the groove 39, and the storage container 51 The space inside can be expanded.

FIG. 4 is a sectional view of a storage container 61 according to still another embodiment of the present invention, in which parts corresponding to those of the above-mentioned embodiment are designated by the same reference numerals. This embodiment is performed when the adhesive may flow onto the lid member 34, and the height of the inner walls 35b and 36b is set to zero. As a result, the thickness of the container body 32 can be reduced by about 1 mm, and the storage space can be further expanded.

As described above, according to the present invention, the joint between the cylindrical storage container body and the pair of lids is formed by the combination of the protrusion and the recess, and the upper portion is formed. That is, a protrusion is formed on the lower surface of the upper first lid member and the lower surface of the container body, and a recess is formed on the lower side of the combination, that is, the upper surface of the container body and the upper surface of the second lid member. Since the inner wall defining the recess is formed lower than the outer wall, the surplus of the adhesive applied to the joint surface at the upper part of the container body flows down along the inner peripheral surface of the container body. Further, the surplus in the lower portion of the container body is blocked by the second inner wall of the lower second lid member.

Therefore, with a simple structure, it is possible to prevent the adhesive from flowing out to the outer peripheral surface of the container body and improve the aesthetic appearance, and at the same time, heat the container body and the pair of lid members at the same time to perform the bonding process. You can finish it in one go.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a storage container 31 according to an embodiment of the present invention,
2 is a sectional view of a storage container 31, FIG. 3 is a sectional view of a storage container 51 of another embodiment of the present invention, and FIG. 4 is a sectional view of a storage container 61 of yet another embodiment of the present invention. FIG. 5 is a sectional view of the storage container 1 of the prior art, and FIG. 6 is another storage container 11 of the prior art.
FIG. 31,51,61 …… Storing container, 32 …… Container body, 33,34 …… Lid member, 35a, 36a …… Outer wall, 35b, 36b …… Inner wall, 37,39 ……
Grooves, 38,40 ... Ridges

Claims (1)

[Scope of utility model registration request] 1. A structure in which a pair of lid members are joined to both openings of a cylindrical container body having both ends in the axial direction opened, wherein the container body has a cylindrical side wall and one side end of the side wall. A first outer wall that is erected over the entire circumference of the outer peripheral edge of the portion, a first inner wall that is formed inward of the first outer wall and has an axial height smaller than that of the first outer wall, and the other of the side walls A first protrusion that is provided upright over the entire circumference of the inner peripheral edge of the side end, and the first lid member that is attached to the one side end includes the first outer wall and the first inner wall. The second lid member provided with the second protrusion that fits in the defined recess, and the second lid member attached to the other end portion has the second outer wall formed over the entire circumference of the outer peripheral edge portion, and the second outer wall portion. A second inner wall that is erected at a position spaced from the outer wall by at least the thickness of the first ridge, and is defined by the first outer wall and the first inner wall of the container body. A recess,
After assembling the thermosetting adhesive into the recess defined by the second outer wall and the second inner wall of the second lid member and assembling the first lid member and the second lid member to the container body A joint structure for a container, characterized in that the adhesive is cured by heating.