JP2002330199A - Portable information terminal and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable information terminal with improved manufacturing efficiency thereof by preventing from occurring production process delay even when a liquid crystal module are not prepared in the production process. SOLUTION: The portable information terminal S having a liquid crystal module D includes a case consisting of a front case 11 and a rear case 12, and a printed board 5 sandwiched by the front case 11 and the rear case 12. The liquid crystal module D includes engagement portions 7, 8. The front case 11 includes an aperture 4 through which the liquid crystal module D can be inserted. The printed board 5 has portions 9, 10 to be engaged with the engagement portions 7, 8. The liquid crystal module D can be housed in the case by engaging the engagement portions 7, 8 on the liquid crystal module D inserted from the aperture 4 with the portions 9, 10 on the printed board 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a portable telephone and a PHS
The present invention relates to a portable information terminal having a display unit and a method for manufacturing the portable information terminal.

[0002]

2. Description of the Related Art FIG. 9 is an example of an exploded view of a housing 101 having a liquid crystal module (display unit) D in a conventional foldable portable telephone. As shown in FIG.
Has a front case 105 having an opening 104 and a rear case 106 connected to overlap the front case 105. The printed circuit board 107 and the liquid crystal module D are arranged between the front case 105 and the rear case 106 so as to be sandwiched therebetween. The liquid crystal module D and the printed circuit board 107 are connected to each other by
It is connected and fixed by hooking it on the side.

When assembling the housing 101 having the liquid crystal module D, first, the liquid crystal module D and the printed circuit board 107 are connected and fixed by the claws 108. Next, the rear case 106 and the printed circuit board 107 are connected to each other by disposing screws in the screw holes 106a and 107a provided respectively. When the liquid crystal module D, the printed circuit board 107, and the rear case 106 are connected, the front case 105 and the rear case 106 are connected using screws. At this time, the liquid crystal module D is fixed so as to be sandwiched between the front case 105 and the rear case 106. The surface of the liquid crystal module D is exposed from the opening 104 of the front case 105.

[0004]

As described above, in the conventional portable telephone, the liquid crystal module D has a structure sandwiched between the front case 105 and the rear case 106.
This is a configuration in which the housing 101 is housed inside the housing 101 before assembling. In such a configuration, the casing 101 cannot be assembled without the liquid crystal module D during the assembling process. Therefore, if the delivery of the liquid crystal module D is delayed in the assembling process, the process is stopped at that point. As described above, since the progress of the assembling process of the mobile phone is affected by the delivery of the liquid crystal module D, the manufacturing efficiency is low.

[0005] In addition, when a failure occurs in the liquid crystal module D in the product mobile phone, it is necessary to take out the liquid crystal module D from the housing 101 for repair. When the liquid crystal module D is taken out, the housing 1 is fixed because it is fixed between the front case 105 and the rear case 106 with screws.
01 needs to be disassembled, and the work efficiency is low. Further, the housing 101 may be damaged due to the disassembly.

The present invention has been made in view of such circumstances, and when manufacturing a portable information terminal having a liquid crystal module (display unit), the liquid crystal module is prepared in a manufacturing process such as when the delivery of the liquid crystal module is delayed. Even if it is not performed, it is possible to improve the manufacturing efficiency without delaying the progress of the process, and also when it is desired to take out only the liquid crystal module from the completed portable information terminal, it is possible to take out the portable information terminal with good workability and its production The aim is to provide a method.

[0007]

In order to solve the above-mentioned problems, a portable information terminal according to the present invention comprises a portable information terminal having a housing and a display unit housed inside the housing. The unit has an engaging portion, and the housing is provided at an opening through which the display portion can be inserted, and at a position corresponding to the opening, and engages with the engaging portion to form the engaging portion. A fixing portion to be fixed, wherein the engagement portion of the display portion inserted from the opening and the engagement portion engage with each other, whereby the display portion is provided inside the housing. Is fixed.

According to a method of manufacturing a portable information terminal of the present invention, in the method of manufacturing a portable information terminal including a housing and a display unit housed in the housing, an opening provided in the housing is provided. By inserting the display unit from above, and engaging an engaging portion provided on the display unit with an engaged portion provided at a position corresponding to the opening in the housing. A display unit and the housing are fixed.

According to the present invention, the engaged portion is provided at the position corresponding to the opening provided in the housing to be engaged with and fixed to the engaging portion provided on the display portion. The display unit can be fixed inside the housing by inserting the display unit from the opening and engaging the engagement unit and the engaged unit. As described above, since the display unit can be accommodated inside the housing after the housing is assembled, the display unit is prepared in the manufacturing process when manufacturing the portable information terminal, for example, when the delivery of the display unit is delayed. Even if not performed, the production efficiency can be improved without delaying the progress of the process.

The housing has a first member and a second member connected so as to overlap the first member, and a substrate portion is provided so as to be sandwiched between the first member and the second member. Since the engaged portion is provided on the substrate portion, after assembling the first member and the second member with the substrate portion interposed therebetween, the display portion is inserted from the opening, and the display portion is inserted. The display unit is housed inside the housing by engaging the engaging portion of the base member with the engaged portion provided at a position corresponding to the opening provided in the first member of the substrate portion. be able to.
As described above, since the display unit can be accommodated inside the housing after the first member and the second member are connected to assemble the housing, when the portable information terminal is manufactured, the display unit is delivered. Even when the display unit is not prepared in the manufacturing process, such as when it is delayed, the manufacturing efficiency can be improved without delaying the progress of the process.

The engaging portion has a convex portion, and the engaged portion has a concave portion to be fitted with the convex portion, so that the fixing portion is provided on the display portion when the display portion is fixed to the substrate portion. It can be easily fixed simply by pushing the convex portion into the concave portion provided in the substrate portion.

A hole is provided at the boundary between the housing and the display unit so that the engaging portion can be accessed from the outside. Therefore, when the display unit is to be taken out of the housing, For example, a rod-shaped member may be inserted into the hole to access the engaging portion and release the engagement between the engaging portion and the engaged portion.
As described above, by providing the holes, it is possible to improve the workability when it is desired to take out only the display unit from the housing.

[0013] Since at least one of the first member and the second member is provided with a positioning member for positioning with respect to the substrate portion, the substrate portion is stably positioned and the connection between the substrate portion and the display portion is established. Can be performed stably.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A portable information terminal and a method for manufacturing the portable information terminal according to the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of a portable information terminal S according to an embodiment of the present invention, and FIG. 2 is an exploded view of a housing 1 having a display unit D in the portable information terminal S. In FIG. 1, a portable information terminal S includes a first housing 1 having a liquid crystal module (display unit) D and a second housing having a key button (operation input unit) K.
It has a housing 2 and a fold 3 connecting the first housing 1 and the second housing 2. In the present embodiment, the portable information terminal S is a mobile phone, and can be folded by the folding unit 3. In addition, as the portable information terminal S, in addition to a mobile phone, any device having a display unit such as a PHS and a PDA may be used. Instead of a folding type, the operation input unit and the display unit may be housed in one housing.

The key button K is a power ON key button, a power OFF key button, various function key buttons,
It comprises a cross function key button, numeric key buttons, and the like, and protrudes from the outer surface of the second housing 2 by a predetermined amount. Further, the second housing 2 is also provided with a microphone M. The second housing 2 has a front case 21 on which the key buttons K are arranged, and a rear case 22 connected so as to overlap the front case 21. A printed circuit board (not shown) is accommodated between the front case 21 and the rear case 22.

The first housing (housing) 1 includes a front case (first member) 11 where the liquid crystal display D is exposed,
A rear case (second member) 12 is connected to the front case 11 so as to overlap with the front case 11.

As shown in FIG. 2, the housing 1 includes a front case (first member) 11 having an opening 4 and a rear case (second member) 12 connected so as to overlap the front case 11. Have. A printed circuit board (substrate unit) 5 having a predetermined wiring pattern is disposed between the front case 11 and the rear case 12 so as to be sandwiched therebetween. When the liquid crystal module D is arranged inside the housing 1,
The liquid crystal module D is exposed from the opening 4 of the front case 11.
A window 6 which is a transparent plate for protecting the liquid crystal module D exposed from the opening 4 is connected.
The opening 4 of the front case 11 is formed slightly larger than the liquid crystal module D so that the liquid crystal module D can be inserted.

As shown in FIG. 2 and FIG.
Can be accommodated inside the rear case 12. The rear case 12 is provided with a rib (positioning member) 13 for positioning with respect to the printed circuit board 5. Further, the rear case 12 is provided with a cylindrical portion (positioning member) 14 having a screw hole 12a. In the present embodiment, four ribs 13 and four cylindrical portions 14 are provided. The printed circuit board 5 housed inside the rear case 12 includes the rib 13 and the cylindrical part 1.
The movement is regulated by 4 and is positioned at a predetermined position. At this time, the printed circuit board 5 is provided with an arc portion 5a corresponding to the cylindrical portion 14, and the positioning accuracy is improved by abutting the arc portion 5a and the cylindrical portion 14.

As shown in FIGS. 2 and 4, a claw portion (convex portion, engaging portion) 7 and a convex portion (engaging portion) 8 are provided below the liquid crystal module D. In the present embodiment, three claw portions 7 are provided, and four convex portions 8 are provided. The printed circuit board 5 has a claw portion 7 corresponding to the claw portion 7.
A hole (recess, engaged portion) 9 that can be engaged with the hole is provided. Further, the printed circuit board 5 is provided with a concave portion (engaged portion) 10 in which the convex portion 8 can be fitted, corresponding to the convex portion 8. Note that the recess 10 may be a through hole or may have a bottom. Then, the hooks 7 of the liquid crystal module D are hooked into the holes 9 of the printed circuit board 5 while being bent inward, and the projections 8 of the liquid crystal module D are fitted into the recesses 10 of the printed circuit board 5, as shown in FIG. As shown, the liquid crystal module D and the printed circuit board 5 are connected and fixed while being positioned.

As shown in FIG.
A groove (hole) 30a is formed on the side surface of the liquid crystal module D from the front surface side toward the claw portion 7. on the other hand,
A groove (hole) 30b is formed in the opening 4 of the front case 11 at a position facing the groove 30a provided on the side surface of the liquid crystal module D from the front surface to the rear surface of the front case 11. The front case 11 is provided with four screw holes 11a. On the other hand, the rear case 12 is also provided with four screw holes 12a.
When the front case 11 and the rear case 12 are overlapped, the screw holes 11a and the screw holes 12a are arranged at the same position. In addition, a step portion 32 for arranging the window portion 6 is formed on the surface of the front case 11.

Next, a procedure for assembling the housing 1 of the portable communication terminal S having the above-described configuration will be described. First, the front case 11 and the rear case 12 are connected so as to overlap with the printed circuit board 5 therebetween. That is, first, as shown in FIG.
The printed circuit board 5 is positioned while being positioned using the positioning members 13 and 14 inside. Next, the rear case 12
The front case 11 is overlapped with the screw holes 11a,
A screw is screwed into 12a, and the front case 11 and the rear case 12 are connected and fixed. Thus, the housing 1 in which the printed circuit board 5 is disposed as shown in FIG. 5 is assembled.

Here, when the printed circuit board 5 is fixed so as to be sandwiched between the front case 11 and the rear case 12, holes (engaged parts) 9 and recesses (engaged parts) provided in the printed circuit board 5 are provided. 10 is a front case 11
Is set at a position corresponding to the opening 4.

Next, the liquid crystal module D is inserted through the opening 4 of the front case 11. Then, the claw portion 7 provided on the liquid crystal module D is hooked into the hole 9 of the printed circuit board 5, and the convex portion 8 of the liquid crystal module D is fitted into the concave portion 10 of the printed circuit board 5. The engaging portion (claw portion 7, convex portion 8) of liquid crystal module D engages with the engaged portion (hole portion 9, concave portion 10) provided at a position corresponding to opening 4 in printed circuit board 5. By doing so, the liquid crystal module D and the printed board 5 are fixed. Thus, the liquid crystal module D is housed inside the housing 1.

When the liquid crystal module D is accommodated in the housing 1, the step 32 of the front case 11 is protected in order to protect the surface of the liquid crystal module D exposed from the opening 4.
The window portion 6 is mounted while being positioned. Thus, as shown in FIG. 6, the liquid crystal module D
Is completed.

Here, the groove 30a formed from the surface side of the liquid crystal module D toward the claw portion 7 and the opening 4 of the front case 11 from the surface of the front case 11 so as to face the groove 30a. The liquid crystal module D is formed by the groove 30b formed toward the rear surface.
A hole 30 (see FIG. 6) accessible to the claw portion (engaging portion) 7 is formed in a boundary between the housing 1 and the housing 1.

Next, for example, when a defect occurs in the liquid crystal module D, the liquid crystal module D is removed from the housing 1 for repair.
The procedure for taking out is described with reference to FIG.
FIG. 7 is a cross-sectional view of the vicinity of the claw portion 7 of the liquid crystal module D. When taking out the liquid crystal module D from the housing 1, first, as shown in FIG. 7A, the window 6 is removed. Then, as shown in FIG. 7 (b), a key-shaped rod-shaped member B is inserted into the hole 30 formed by the groove 30 a of the liquid crystal module D and the groove 30 b of the front case 11, and Access to bend the claws 7 inward. Then, the engagement between the claw portion 7 and the hole portion 9 is released. The engagement with the hole 9 is released, and the printed circuit board 5 is released.
The liquid crystal module D, which can be separated from the liquid crystal module D, is removed from the housing 1 by being lifted by the key-shaped portion of the rod-shaped member B.

As described above, the nail 7 and the projection 8 provided in the liquid crystal module D are engaged with the printed board 5 at a position corresponding to the opening 4 provided in the front case 11. The front case 11 and the rear case 1 are provided by providing the fixing holes 9 and the recesses 10.
After assembling 2 with the printed circuit board 5 interposed therebetween,
The liquid crystal module D can be housed in the housing 1 by inserting the liquid crystal module D from the opening 4 and engaging the claws 7, the projections 8 with the holes 9, and the recesses 10. Thus, the front case 11 and the rear case 12
The liquid crystal module D can be accommodated inside the housing 1 after the housing 1 is assembled by connecting the liquid crystal module D to the mobile information terminal S. Therefore, even when the liquid crystal module D is not prepared, the production efficiency can be improved without delaying the progress of the process.

The projection 8 is provided on the liquid crystal module D as the engaging portion, and the recess 10 is formed on the printed circuit board 5 as the engaged portion. At the time of fixing, the protrusions 8 provided on the liquid crystal module D can be easily fixed simply by pushing them into the recesses 10 provided on the printed circuit board 5. Also, when hooking the claw portion 7 into the hole portion 9, the claw portion 7 can be hooked while being bent inward only by pushing the liquid crystal module D into the printed circuit board 5, thereby improving the workability. Connection can be made.

Liquid crystal module D and front case 11
Are provided with grooves 30a and 30b, respectively, so that when the liquid crystal module D is housed in the housing 1, the hole 30 is formed so as to be accessible to the claws 7.
If you want to take out the liquid crystal module D from the housing 1,
The rod member B is inserted into the hole portion 30 to access the claw portion 7 so that the engagement between the claw portion 7 and the hole portion 9 can be released. Can be. The hole portion 30 may be any hole that allows the bar-shaped member B to be accessible to the claw portion 7 from the outside of the housing 1. Therefore, the hole portion 30 may be provided in only one of the liquid crystal module D and the front case 11. can do. Further, a hole may be provided in the rear case 12 so that the claw 7 can be accessed.

Positioning members (rib portion 13, cylindrical portion 1) for positioning with respect to printed circuit board 5 are provided on rear case 12.
By providing 4), the printed circuit board 5 is stably positioned with respect to the rear case 12. In addition, since the liquid crystal module D is positioned with respect to the printed board 5 by the engaging portions 7 and 8, when the mobile communication terminal S is assembled, the printed board 5 and the liquid crystal module D are also stably positioned. Therefore, the connection operation between the printed circuit board 5 and the liquid crystal module D can be performed stably.

In the above embodiment, the engaged portions (holes 9 and concave portions 10) are provided on the printed circuit board 5, but as shown in FIG.
The recess 50 may be provided on the inner peripheral surface of the opening 4. In this case, the engagement portion is configured by, for example, a claw portion 51 provided on a side surface of the liquid crystal module D. Here, the claw portion 51 can be housed in the liquid crystal module D side and has a biasing force in a protruding direction. Further, the engaged portion can be provided on the inner surface of the rear case 12. In this case, of the printed circuit board 5, the rear case 1
A through hole is formed in a portion corresponding to the engaged portion provided on the inner surface of the second. Further, when the engaged portion is provided on the inner surface of the rear case 12, the liquid crystal module D and the printed board 5 are connected in advance outside the housing 1, and the liquid crystal module D and the printed board 5 are connected through the opening 4. It may be inserted inside the housing 1. At this time, the size of the printed circuit board 5 is set to an extent that the opening 4 can be inserted. In this case, the housing may not be configured to connect the front case 11 and the rear case 12, but may be integrally formed from the beginning.

In the above embodiment, the positioning members (ribs 13 and cylindrical portion 14) for positioning the printed circuit board 5 and the housing 1 are provided on the rear case 12, but are not provided on the front case 11. It may be provided.

In the above embodiment, the front case 11 and the rear case 12 are connected by screws.
A hook may be provided on the rear case 12 (front case 11), and the front case 11 and the rear case 12 may be connected using these.

[0034]

As described above, according to the present invention,
At the position corresponding to the opening provided in the housing, by providing an engaged portion that is engaged with and fixed to the engaging portion provided in the display unit, the display unit is inserted from the opening, The display section can be fixed inside the housing by engaging the engagement section with the engaged section. As described above, since the display unit can be accommodated inside the housing after the housing is assembled,
When manufacturing a portable information terminal, even when the display unit is not prepared in the manufacturing process, such as when the delivery of the display unit is delayed, the manufacturing efficiency can be improved without delaying the progress of the process.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an embodiment of a portable information terminal of the present invention.

FIG. 2 is an exploded view of the portable information terminal of the present invention.

FIG. 3 is a view in which a substrate and a second member are assembled.

FIG. 4 is a view in which a display unit and a substrate unit are assembled.

FIG. 5 is a diagram illustrating a method for manufacturing a portable information terminal according to the present invention.

FIG. 6 is a diagram illustrating a method for manufacturing a portable information terminal according to the present invention.

FIG. 7 is a diagram illustrating a state in which a display unit is removed from a housing.

FIG. 8 is an external perspective view showing another embodiment of the portable information terminal of the present invention.

FIG. 9 is an exploded view for explaining a conventional portable information terminal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 4 Opening 5 Printed circuit board (board part) 7 Claw part (engagement part) 8 Convex part (engagement part) 9 Hole part (engaged part) 10 Depression (engaged part) 11 Front case ( 1st member) 12 rear case (2nd member) 13 rib part (positioning member) 14 cylindrical part (positioning member) 30 hole part 30a groove part (hole part) 30b groove part (hole part) D liquid crystal module (display part, liquid crystal display) ) S portable information terminal

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4E353 AA15 AA16 AA25 BB02 BB05 CC01 CC05 CC12 DD02 DD05 DD08 DR04 DR05 DR13 DR24 DR27 DR46 DR56 GG21 5B019 BA00 BB08 5K023 AA07 BB04 PP01 PP11

Claims (6)

[Claims] 1. A portable information terminal including a housing and a display unit housed in the housing, wherein the display unit has an engagement unit, and the housing is capable of inserting the display unit. And an engaged portion which is provided at a position corresponding to the opening and is engaged with the engaging portion and capable of fixing the engaging portion, wherein the engaged portion is inserted through the opening. The portable information terminal, wherein the display section is fixed inside the housing by the engagement of the engagement section and the engaged section of the display section. 2. The housing has a first member and a second member connected so as to overlap with the first member, and a substrate portion sandwiched between the first member and the second member. The portable information terminal according to claim 1, wherein the engaged portion is provided on the substrate portion. 3. The portable information terminal according to claim 1, wherein the engaging portion has a convex portion, and the engaged portion has a concave portion fitted with the convex portion. 4. The apparatus according to claim 1, wherein a hole is provided at a boundary between the housing and the display unit so that the engagement unit can be externally accessed. The portable information terminal described in Crab. 5. The portable information terminal according to claim 2, wherein at least one of said first member and said second member is provided with a positioning member for positioning with respect to said substrate portion. 6. A method for manufacturing a portable information terminal including a housing and a display unit housed in the housing, wherein the display unit is inserted through an opening provided in the housing, The display unit and the housing are fixed by engaging an engagement unit provided on the display unit with an engaged portion provided at a position corresponding to the opening in the housing. A method for manufacturing a portable information terminal.