JPS6185897A - Assembling of box body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of assembling a casing in which a lid is adhered to the casing to close an opening of the casing.

Conventional technology In a thin radio receiver 1 etc. as shown in Fig. 2,
In some cases, an opening 3 is provided in the frame 2 made of synthetic resin, and various parts 5 and the like fixed to the printed circuit board 4 are accommodated in the opening 3.

In this case, the back side of the opening 3 is closed by the back panel 6 so that the radio receiver 1 can be repaired. The front side of the opening 3 is also closed by a front panel 7 made of metal or particularly rigid synthetic resin, etc., in order to maintain the radio receiver l at a predetermined mechanical strength.
It is not obstructed by a very thin wall that is integral with the

By the way, unlike the back panel 6 for repair purposes, the front panel 7 does not need to be directly removable from the frame 2.

For this purpose, the front panel 7 has screws 11 and bag napfts 12.
is fixed to the frame 2 by
The space between the two is bonded to the frame 2 with an adhesive.

In order to adhere the front panel 7 to the frame 2, it is conceivable to use adhesive paper 13 as shown in FIGS. 3 and 4. The adhesive paper 13 has non-adhesive layers 15 and 16 made of paper that can be peeled off from the adhesive layer 14 laminated on both sides of an adhesive layer 14 made of a pressure-sensitive adhesive.

The adhesive layer 14 and the non-adhesive layer 15 have substantially the same shape as the front panel 7 as a whole, but the slit 17 separates the peripheral portion 21 along the edge of the front panel 7 from the It is completely separated into a central portion 22 surrounded by 21.

In order to adhere the front panel 7 to the frame 2 using the adhesive paper 13, first peel only the circumferential portion 21 from the non-adhesive layer 16, and then attach the circumferential portion 21 along the edge of the front panel 7 using adhesive Ji14. Glue. Next, this orbiting section 21
When the non-adhesive layer 15 is peeled off, only the adhesive layer 14 remains on the front panel 7, so that the front panel 7 can be adhered to the frame 2 using this adhesive layer 14.

Problems to be Solved by the Invention However, since the width l of the circumferential portion 21 is very narrow, the circumferential portion 21 deforms from a substantially rectangular shape to a diamond shape or the like when it is peeled off from the non-adhesive layer 16 and adhered to the front panel 7. Easy to do. Therefore, it is difficult to accurately adhere the adhesive layer 14 to the edge of the front panel 7, and the front panel 7 cannot be reliably adhered to the frame 2.

The adhesive layer 14 and the non-adhesive layer 1!115 are not separated into the surrounding part 21 and the central part 22 by the slit 17, but the surrounding part 21 and the central part 22 are integrated into the non-adhesive layer 1.
When peeled off from 6, these surrounding parts 21 and central part 22
is not easily deformed.

However, if this is done, the adhesive layer 14 will also be bonded to the portion of the front panel 7 that corresponds to the opening 3.

As a result, there is a possibility that the component 5 adheres to the adhesive layer 14 through the opening 3 and separates from the printed circuit board 4. Furthermore, when the front and rear panels 7.6 are held and pressed with fingers or the like, the adhesive layer 14 repeatedly adheres to and separates from the component 5 through the opening 3, and a separation sound is generated each time, resulting in quality problems. Undesirable.

Means for Solving the Problems The method for assembling a casing according to the present invention includes a step of providing the casing 2 with a protrusion 30 that protrudes from the edge of the opening 3 toward the center, and a removable non-adhesive layer 15. a step of bonding the adhesive layer 14 on which is laminated to the lid 7; A step of peeling off the non-adhesive layer 15 at a portion to be bonded to the casing 2, and bonding the lid 7 to the casing 2 using the adhesive layer 14 exposed by this peeling. The opening 3
The portion of the non-adhesive layer 15 corresponding to the protrusion 30
The husband is provided with a locking process.

Function: According to the method for assembling a casing according to the present invention, an integral adhesive layer 14 is bonded to both the portion of the lid 7 that is to be bonded to the casing 2 and the portion corresponding to the opening 3. Therefore, even if the area to be bonded to the housing 2 is narrow, the adhesive layer 14 will not easily deform when bonding the adhesive layer 14 to this area. Can be glued accurately.

Further, since the non-adhesive agent 7115 is left in the portion of the lid 7 corresponding to the opening 3, this portion has no adhesive force.

Moreover, since the non-adhesive layer 15 that remains without being peeled off is retained by the protrusion 30 provided on the housing 2,
The non-adhesive layer 15 will not separate from the adhesive JW 14 over time, and the portion of the lid 7 corresponding to the opening 3 will not have adhesive strength.

Embodiment Hereinafter, an embodiment of the present invention applied to the assembly of a radio receiver will be described with reference to FIG.

In the assembly of the radio receiver l shown in FIG. 2, in this embodiment, as shown in FIG. It was established in The protrusion 30 may be integral with the frame 2 or may be molded at the same time as the frame 2 is molded.

In order to adhere the front panel 7 to the frame 2 shown in FIG. 1A and close the opening 3, adhesive paper 31 as shown in FIG. 1B was used in this embodiment. This adhesive paper 31 has a plurality of connecting parts 32 for connecting the circumferential part 21 and the central part 22.
The adhesive paper 13 may have substantially the same structure as the adhesive paper 13 shown in FIG. 3, except that the adhesive paper 13 is formed in the slit 33.

In this example as well, the adhesive layer 14 and the non-adhesive layer 15 are peeled off from the non-adhesive layer 16. At this time, since the connecting portion 32 is formed in the slit 33, the circumferential portion 21 and the central portion 2
2 are not separated from each other by the slit 33 but are peeled off as one, and the circumferential portion 21 and the central portion 22 are not easily deformed.

Next, as shown in FIG. 1C, the frame 2 of the front panel 7 is
The circumferential portion 21 and the central portion 22 are adhered to the side surfaces using an adhesive layer 14. In this case, the circumferential portion 21 and the central portion 22
are not deformed, so these surrounding parts 21 and central part 2
2 can be accurately adhered to the front panel 7, and therefore the circumferential portion 21 can be accurately adhered to the edge of the front panel 7.

After that, leaving the non-adhesive layer 15 in the central part 22, the surrounding part 2 is
Only one non-adhesive layer 15 is peeled off along the slit 33. A plurality of connecting portions 32 are formed in the slit 33, but since these connecting portions 32 are very small, the non-adhesive layer 15 can be easily peeled off only from the circumferential portion 21.

Then, the front panel 7 is bonded to the frame 2 using the adhesive layer 14 of the circumferential portion 21 exposed by peeling.

At this time, as shown in the first diagram, the portions of the non-adhesive layer 15 corresponding to the openings 3 are locked by the protrusions 30 at a plurality of locations on the peripheral edge.

Therefore, although the non-adhesive layer 15 is easily peeled off from the adhesive layer 14, the non-adhesive layer 15 does not separate from the adhesive layer 4 over time.

In addition, as mentioned above, even if the front panel 7 is made of metal, the insulation between the front panel 7 and the component 5 is improved by leaving the adhesive layer 14 and the non-adhesive layer 15 in the central part 22. It can be done perfectly.

Effects of the Invention As described above, according to the method for assembling a casing according to the present invention, the adhesive layer can be accurately bonded to the part of the fluid that should be bonded to the casing, so that the lid body can be easily attached to the casing. Moreover, since there is no adhesive force on the part of the lid that corresponds to the opening of the housing, it is possible to prevent various parts fixed inside the housing from adhering to the lid. It can be prevented.

[Brief explanation of drawings]

1A to 1C are plan views sequentially showing steps in one embodiment of the present invention, the first drawing is an enlarged sectional view of main parts showing another step in one embodiment, and FIG. 2 is a plan view to which one embodiment is applied. FIG. 2 is an exploded perspective view showing a radio receiver. FIG. 3 is a plan view showing one step in a conventional example of the present invention, and FIG. 4 is an enlarged sectional view taken along the line IV--IV in FIG. In addition, in the symbols used in the drawings, 2-...--------1-------Frame 3-
・−・−−１１−−−・−・Open lower・−・−１−
−−−−−−−−・−Front panel 14−・−・−1−−
−−・−・−Adhesive layer 15・・・・・・−・−・・−・
...Non-adhesive layer 2 t--...--
・Rounding part 22------------Center part 3
0--------・・-・−・・−・−Protrusion portion 32・−・・
・・−・−・−−１−−・Connection part 33−・−・−・−
......- It is a slit.

Claims (1)

[Claims] A method for assembling a housing in which an opening of the housing is closed by bonding a lid to the housing, the step of providing the housing with a protrusion that projects from an edge of the opening toward a center;
a step of adhering an adhesive layer on which a peelable non-adhesive layer is laminated to the lid; Peeling off the non-adhesive layer of the part to be bonded to the casing, and bonding the lid to the casing with the adhesive layer exposed by this peeling, and also bonding the lid to the casing. A method for assembling a casing, comprising the steps of: locking the non-adhesive layer in a portion corresponding to the opening with the protrusion.