JP4374580B2 - Case structure of mobile terminal equipment - Google Patents

Description

  The present invention relates to a housing structure of a mobile terminal device, and particularly preferably applied to a housing structure of a mobile terminal device such as a mobile phone that forms a housing by combining a plurality of members manufactured by different methods. Can do.

  2. Description of the Related Art Conventionally, a housing structure of a general folding portable terminal device such as a mobile phone has a structure as shown in a perspective view of FIG. For example, as shown in Japanese Patent Application Laid-Open No. 2000-224278 “Structure of Electronic Equipment Housing” in Patent Document 1, a plurality of members manufactured by different methods are combined using a hook mechanism. It is configured. FIG. 5 is a perspective view showing a housing structure of a conventional foldable portable terminal device, and FIG. 5A shows a front perspective view of the foldable portable terminal device 100A in an open state, and FIG. FIG. 4 shows a rear perspective view of the folding portable terminal device 100A in a closed state.

  As shown in FIG. 5, in the mobile terminal device 100A, an upper housing 50 and a lower housing 51A are pivotally supported by a rotation shaft 52, and the upper housing 50 is rotatable with respect to the lower housing 51A. Is assembled. The upper housing 50 includes a display unit 41 having a screen display function and a sound output unit 42 such as a speaker. The lower housing 51 includes an operation unit 43 such as operation buttons and a sound input unit 44 such as a microphone. Is provided.

  Here, the lower housing 51A will be described. As described above, the lower housing 51A is assembled using a plurality of members, and finally, the two case members of the upper case 30A and the lower case 31A are combined to be integrated. Formed. Focusing on the lower case 31A, as shown in the sectional view of FIG. 6, the lower case 31A is configured by combining two members of the member 20A and the member 21, and the member 20A is fixed to the member 21. As a fixing means for this purpose, the member 20A is provided with a hook 3A, and a hook hole 4 is formed in the side wall 2 of the member 21.

That is, when the member 20A and the member 21 are combined, the member 20A and the member 21 are integrated by the hook 3A on the member 20A side being inserted into the hook hole 4 of the member 21 on the counterpart side and locked. Thus, the lower case 31A is configured. Thus, the lower casing 51A is configured by combining the assembled lower case 31A and upper case 30. FIG. 6 shows a cross-sectional structure of the lower casing 51A of the portable terminal device 100A shown in FIG.
JP 2000-224278 A (page 4)

  However, in the case structure of the conventional portable terminal device that constitutes the case by assembling a plurality of members manufactured by different methods using the hook mechanism as described above, the portable terminal device is dropped, etc. When an external force is applied to the case, the hook will come off from the hook hole, the members will be separated and the components in the case will pop out, causing the mobile terminal device to fail or the hook claws to be damaged Problems such as have occurred.

  In order to solve this problem, a coping method that increases the number of hooks and hook holes installed has been proposed, but not only the assembly work of the members becomes complicated during the production, but the production man-hours are not only generated. However, there is a drawback in that deformation occurs at the time of manufacturing, resulting in a deterioration in manufacturing efficiency.

  Therefore, an object of the present invention is to form a case by integrating a plurality of members manufactured by different methods using a hook mechanism, and further combine at least two cases to form a case of the final portable terminal device. When a case structure of a portable terminal device configured as described above is adopted, a case structure is provided that is easy to manufacture and that does not easily come off the hook even when an external force is applied to the completed case.

  In order to solve the above-described problem, the casing structure of the mobile terminal device according to the present invention employs the following characteristic configuration.

(1) a plurality of members one of the case formed by integrally combining, with housing structure of the mobile terminal devices constituting the casing in at least two cases of the other case to be combined in one case the There ,
As a fixing means for combining and integrating the first and second members of the plurality of members to form the one case, a hook disposed on the first member is used as the second member . It has a hook mechanism that inserts and locks into a hook hole drilled in the member ,
Contact with the hook when the combination of said other case with the one case, pressing rib which the hook to suppress the movement in a direction deviating from the hook hole is provided with the other case,
The hook is provided on a standing wall portion of the first member;
The hook hole is provided in a side wall of the second member;
The holding rib is a housing structure of a portable terminal device, which is an edge portion of a side wall extending from an end portion of the other case to the one case side .
(2) A casing structure of a mobile terminal device in which a casing is configured by at least two cases of one case formed by combining a plurality of members and the other case combined with the one case. And
As a fixing means for combining and integrating the first and second members of the plurality of members to form the one case, a hook disposed on the first member is used as the second member. It has a hook mechanism that inserts and locks into a hook hole drilled in the member,
A pressing rib that contacts the hook when the one case and the other case are combined and prevents the hook from moving in a direction away from the hook hole is provided in the other case.
The upper end surface of the hook provided in the one case is provided with a notch portion, and when the one case and the other case are combined, the notch portion and the tip end portion of the pressing rib are mutually connected. Enclosure structure of a mobile terminal device to be engaged.

  According to the housing structure of the mobile terminal device of the present invention, a structure is adopted in which a holding rib for suppressing the movement of the hook is provided in the other case combined with a case formed by combining a plurality of members using a hook. Therefore, even when an external force is applied to the case of the mobile terminal device in the direction in which the hook is released, the mobile terminal device does not move in the direction in which the hook is released, and the mobile terminal device fails or the hook is damaged. Can be prevented.

  Furthermore, even when a hook mechanism is used as a fixing means for a plurality of members, there is no need to unnecessarily increase the number of hooks installed, and the case member can be combined with a plurality of members without deteriorating the production efficiency. To the housing can be easily manufactured.

  Hereinafter, a preferred embodiment of a housing structure of a portable terminal device according to the present invention will be described with reference to the accompanying drawings.

<Case structure>
In this embodiment showing an example of the case structure of a portable terminal device according to the present invention, the case structure will be described based on a foldable portable terminal device that is common in, for example, a mobile phone or a PDA. FIG. 1 is a perspective view showing an external appearance of a mobile terminal device having a housing structure for a mobile terminal device according to the present invention, and FIG. FIG. 1B shows a rear perspective view of the folding portable terminal device in the closed state.

  As shown in FIG. 1, a mobile terminal device 100 to which the housing structure of the present invention is applied includes an upper housing 50 having a display unit 41 such as a liquid crystal panel and an audio output unit 42 such as a speaker, operation buttons, and the like. The operation unit 43, a voice input unit 44 such as a speaker, a control unit for controlling the overall operation, and the like are constituted by a lower casing 51. The upper casing 50 and the lower casing are rotated. The upper housing 50 is pivotally supported by a shaft 52 and is attached to the lower housing 51 so as to be rotatable about the rotation shaft 52.

  2 is an exploded perspective view in which the components of the mobile terminal device shown in FIG. 1 are disassembled, and shows a state in which the components of the lower housing 51 of the mobile terminal device 100 in FIG. 1 are disassembled. In the front perspective view of FIG. 1 (A), it is shown as a case when viewed from the direction in which the top and bottom are switched, that is, the direction above the back of the paper. Various components arranged in the lower housing 51 shown in FIG. 1 are omitted, and only the portions constituting the housing of the present invention are extracted and illustrated.

  3 is an exploded perspective view showing the disassembled components of the mobile terminal device shown in FIG. 1 at an angle different from that in FIG. 2, and the lower casing 51 of the mobile terminal device 100 shown in FIG. The state of disassembling these components is shown as viewed from the same direction as the rear perspective view of FIG.

  The housing structure of the lower housing 51 of the mobile terminal device 100 in this embodiment will be described in detail with reference to the exploded perspective views of FIGS. 2 and 3. The lower casing 51 that houses the main body including various electronic components including the control unit of the mobile terminal device 100 is made of thermoplastic resin from the viewpoint of protecting internal components and improving the appearance design. It has at least a molded upper case 30 and a lower case 31, and is formed by combining and integrating both.

  In order to improve the appearance design, generally, a novel and complicated surface treatment is required, and using a plurality of means, that is, for each of the upper case 30 and the lower case 31, Furthermore, it is necessary to process the surface for each of a plurality of members forming each of the upper case 30 and the lower case 31 using a separate method suitable for each. As an example of the processing method, for example, painting, plating, vapor deposition and the like are properly used.

  For example, the lower case 31 also employs different surface treatments, such as the member 20 using the surface treatment α (eg, vapor deposition treatment) and the member 21 using the surface treatment β (eg, coating treatment). Further, the members that cannot be subjected to the same surface treatment are formed by being assembled and integrated with each other after the surface treatment is performed by each method.

  In addition, when the member 20 is assembled and integrated with the member 21, the protrusions 5 are erected at the four corners of the inner surface of the member 20 so that no lateral displacement occurs after the assembly. When the member 20 is assembled to the member 21, the protrusions 5 erected inside the member 20 are fitted into the hole portions 6 formed at corresponding positions on the member 21 side.

  Further, although the details will be described later, the fitting portion is subjected to a heat welding process after assembling so that the members 20 and 21 are fixed to each other. Note that, instead of performing the heat welding process, fixing the fitting portion between the protrusion 5 of the member 20 and the hole 6 of the member 21 with a double-sided tape is also an effective method for preventing the occurrence of lateral displacement. One. Furthermore, any other means may be used as the means for fixing the fitting portion as long as the object of preventing the occurrence of lateral deviation is achieved.

  It should be noted that when an impact is caused by dropping the mobile terminal device 100 or the like, the member 20 and the member 21 are not easily displaced laterally or separated from each other so that the protrusions 5 of the member 20 are separated from each other. It is desirable to arrange the fitting portions with the hole 6 of the member 21 at a plurality of locations (in FIGS. 2 and 3 of the present embodiment, four examples are shown as described above).

Further, one or a plurality of hooks 3 (three examples are shown in FIG. 2 ), which are means for realizing the present invention, are arranged inside the standing wall portion 1 that forms the side wall of the member 20 and can be elastically deformed. On the other hand, one or more hooks 3 disposed inside the standing wall 1 of the member 20 are inserted into the side wall 2 of the member 21 combined with the standing wall 1 of the member 20 and locked. Hook holes 4 (three places in FIG. 3) are drilled.

  In addition, the hook 3 provided on the standing wall 1 of the member 20 is connected to the hook hole 4 of the side wall 2 of the member 21 at the end 11 of the upper case 30 combined with the lower case 31 assembled by integrating the member 20 and the member 21. The retaining ribs 10 for preventing detachment are provided so as not to be easily detached even when an external force in the direction of detachment is applied.

  As a result of providing the holding rib 10, the standing wall 1 of the member 20 is deformed outward, and the hook 3 provided on the inside of the standing wall 1 is inserted into the hook hole 4 of the side wall 2 of the member 21 and locked. After assembling as the lower case 31, when the lower case 31 was combined with the upper case 30, the side surface of the hook 3 provided on the member 20 of the lower case 31 was provided to extend from the end 11 of the upper case 30. The holding rib 10 is brought into contact with each other so as to be in close contact with each other, and a situation in which the standing wall portion 1 is deformed by an external force and the hook 3 is detached from the hook hole 4 is prevented.

  Further, as shown in the cross-sectional view of FIG. 4, a notch portion 9 may be provided on the upper end surface of the hook 3 provided on the standing wall portion 1 of the member 20. FIG. 4 is a cross-sectional view showing a cross-sectional structure of the lower casing 51 of the portable terminal device 100 shown in FIG. Even when the notch portion 9 is provided, first, the hook 3 provided on the inner side of the standing wall 1 is inserted into the hook hole 4 of the side wall 2 of the member 21 by deforming the standing wall 1 of the member 20 to the outside and locking. As a result, the lower case 31 is assembled.

  Thereafter, when the lower case 31 is combined with the upper case 30, the two surfaces of the top portion and the side portion of the tip end portion of the holding rib 10 provided to extend to the end portion 11 of the upper case 30 are The hook 3 comes into contact with and engages with the notch 9 provided on the upper end surface of the hook 3 so that the hook 3 comes out of the hook hole 4. Both movements in the lateral direction will be suppressed.

<Description of assembly method>
Next, an assembling method of the portable terminal device 100 shown in FIGS. 1 to 3 as one embodiment of the portable terminal device having the casing structure of the portable terminal device according to the present invention will be described with reference to FIGS. Will be described in detail.

  First, a method for assembling the member 20 and the member 21 will be described with reference to FIG. In order to insert the hook 3 provided on the standing wall portion 1 of the member 20 into the hook hole 4 of the side wall 2 of the member 21 and lock it, the member 20 is overlapped on the member 21. At that time, when the standing wall 1 capable of elastic deformation of the member 20 is bent in the direction of arrow D in FIG. 2, the hook 3 is inserted into the hook hole 4 and the standing wall 1 is not bent and is locked. At the same time, the protrusions 5 erected at the four corners of the member 20 are fitted into the holes 6 formed in the member 21 for positioning, so that the member 20 and the member 21 are integrated, The case 31 can be assembled.

  Next, in order to more firmly fix the assembled member 20 and the member 21, the protrusion 5 fitted in the hole 6 is heated and melted at an appropriate temperature to be closely fixed to the member 21. As a result, the lower case 31 in which the member 20 and the member 21 are integrated and assembled is configured as one member. Thereby, in the static state of the portable terminal device 100, the member 20 and the member 21 can be made into one case member firmly fixed and integrated.

  However, with such a configuration of the lower case 31, when a large impact is applied to the lower case 31 as in the case where the mobile terminal device 100 is dropped, the hook mechanism is used as a fixing means. Since it is used, there is a possibility that the state as one case member in which the member 20 and the member 21 are integrated cannot be maintained.

  That is, when an impact is applied in the direction of arrow D described above with reference to FIG. 2, the standing wall 1 of the member 20 bends in the direction of arrow D, and the hook 3 provided on the standing wall 1 also moves in the direction of arrow D. May be removed from the hook hole 4 formed in the member 21, or in the worst case, the hook 3 may be damaged.

  In order to prevent the occurrence of such a situation, as shown in the cross-sectional view of FIG. 4, when the upper case 30 is combined with the lower case 31, the holding rib provided to extend to the end portion 11 of the upper case 30. 10 is brought into contact with the side surface of the hook 3, or the tip of the holding rib 10 is brought into contact with the notch 9 provided on the upper end surface of the hook 3. Thus, the deformation of the standing wall portion 1 and the movement of the hook 3 which are about to bend in the direction of the arrow D are suppressed and locked, and the failure of the mobile terminal device 100 and the breakage of the hook 3 at the time of impact can be prevented.

  That is, the case is formed by assembling at least two or more case members such as the upper case 30 and the lower case 31, and the case 20 and the member 21 of the lower case 31 are used. In the case where any one of the cases is formed by integrating a plurality of members, the plurality of members are arranged such that the hook 3 and the hook hole 4 are used as means for integrating the member 20 with the member 21. In the case of a structure in which one case is formed by fixing a plurality of members using a hook mechanism of hooks and hook holes as means for integration, the housing structure of the portable terminal device according to the present invention is preferably used Can be applied.

  In other words, in the present invention, when one case formed by fixing and integrating a plurality of members with hooks and hook holes is combined with the other case, it extends to the end portion 11 of the upper case 30. A hook used as an integral means for fixing a plurality of members constituting the one case to the other case side which is the counterpart of the one case is removed like the holding rib 10 which is present. A holding rib is added to prevent movement in the direction of the

  As a result, when assembling at least two cases to form a housing, the side surface of the hook in the direction in which the hook provided in one case is removed and the holding rib provided in the other case of the other party are in contact with each other. By touching, the other party's case can be used effectively to prevent the hook from moving out of the hook hole, and multiple members can be firmly integrated and fixed. No matter what external force is applied to the mobile terminal device, it is possible to prevent an accident that the hook is removed or the mobile terminal device is damaged.

  Furthermore, the notch 9 is provided on the upper end surface of the hook 3 provided on the member 20 of the lower case 31, and when the lower case 31 is combined with the upper case 30, the tip end of the holding rib 10 is notched with the notch 9. A hook provided to combine and integrate a plurality of members to form one case when assembling at least two or more cases to form a case so that the structure is engaged. When the one case is combined with the other case, the tip end portion of the holding rib provided on the other case of the other case is cut off on the hook upper end surface of the one case. By adopting a structure that engages with the notch, the hook and pressing rib are in close contact with each other on the two sides of the upper and lateral directions. Even when the one direction of the external force in the direction is applied, it can be more firmly fixed by the ribs holding the hooks.

  In addition, when a hook mechanism is used as a fixing means between members, it is not necessary to unnecessarily increase the number of hooks installed by adopting such a housing structure, and there is no need to deteriorate manufacturing efficiency. It is also possible to easily manufacture from the case member to the housing by combining these members.

  Further, as shown in the cross-sectional view of FIG. 4, the through hole 7 through which the screw 13 can be passed and the through hole through the corresponding positions of the bottom plate portion of the member 20 and the bottom plate portion of the member 21 of the lower case 31. It is good also as a structure which provides the cylinder 8 and provides the screw thread 12 in the outer surface of the side wall of the upper case 30, and the inner surface of the holding rib 10. FIG. With this structure, the screw 13 is inserted from the lower case 31 side through the through hole 7 of the member 20 of the lower case 31 and the through cylinder 8 of the member 21, and the screw of the upper case 30 is inserted. It can be set as the structure which can be screwed together in the peak 12.

  That is, after assembling the upper case 30 and the lower case 31, the screw 13 is screwed into the screw thread 12 of the upper case 30 through the through hole 7 and the through tube 8 of the lower case 31, thereby lowering the upper case 30 and the lower case 31. The case 31 can be fastened, and both the upper case 30 and the lower case 31 can be more firmly fixed and assembled, and it is possible to more safely prevent the occurrence of accidents where the hooks come off or the mobile terminal device is damaged. can do. Further, when such a structure is used, the head of the screw 13 is covered with the screw concealment cap 14 as shown in the sectional view of FIG. 4 so that the head of the screw 13 is not exposed to the outside in consideration of the design surface. Any configuration may be used.

  The difference between the structure shown in FIG. 4 provided with the holding rib 10 for suppressing the detachment of the hook 3 from the hook hole 4 which is a feature of the present invention and the structure provided with the hook in the prior art will be further described. First, in the case structure of the prior art described with reference to FIG. 5 as the prior art, the structure of the cross-section at the same position as the cross-section of FIG. 4 showing the cross-section of the lower case 51 in the case of the present invention. This will be described with reference to FIG. 6 is a cross-sectional view showing a cross-sectional structure of the lower casing 51A of the conventional portable terminal device 100A shown in FIG. 5 as viewed from the BB plane, as described above. The cross-section which is substantially the same as the cross-sectional structure of the lower housing | casing 51 which shows an example of this invention shown is shown. Here, members having the same shape as the cross-sectional structure of FIG. 4 are denoted by the same reference numerals, and members having shapes different from those of the cross-sectional structure of FIG. 4 are denoted by different signs.

  6 is different from the cross-sectional structure of FIG. 4 which is an example of the present invention in that the cross-sectional structure of the conventional case of FIG. 6 is not a structure capable of preventing the hook 3A from being detached from the hook hole 4. In the point. Specifically, in the cross-sectional structure of the prior art in FIG. 6, the holding rib 10 as in the case of FIG. 4 that prevents the hook 3 </ b> A from being detached from the hook hole 4 is provided at the end 11 </ b> A of the upper case 30 </ b> A. Since it does not extend and does not have a movement locking mechanism for the hook 3A in the left direction in FIG. 6, when an external force in the left direction in FIG. There is a risk that the member 20A may come off because the member 20A cannot resist the movement in the left direction.

  On the other hand, in the case of the structure of FIG. 4 shown as an example of the housing structure in the present invention, as described above, when the upper case 30 and the lower case 31 are assembled, they extend to the end portion 11 of the upper case 30. Since the end portions of the holding ribs 10 are engaged with each other so as to bite into the notches 9 of the hook 3, even when an external force in the left direction of FIG. It can resist the movement in the direction, and the member 20 is difficult to come off.

  That is, in the present invention, the shape of the meshing portion between the pressing rib 10 and the hook 3 is different from the structure of FIG. 6 showing the prior art. Further, according to the present invention, when the hook mechanism is adopted as the fixing means between the members for the other constituent members, the same structure is adopted so that the other case member to be combined is provided with the holding rib. Can be configured. As a result, even in the case where a plurality of members manufactured in separate processes are assembled into a single housing structure, a single housing in which each member is integrated more firmly than in the prior art. It can be set as the structure which forms.

  More specifically, in the embodiment described above, in order to make it easier to understand the gist of the present invention, the lower case 51 is further centered on the case structure of the lower case 51. Although the specific description has been given centering on the case where the hook mechanism is used when forming the 31, the present invention is not limited only to such a case, and the hook mechanism is not limited to other members of the lower casing 51. Even if it is used as a fixing means between the members of the upper housing 50 or between the members of the upper housing 50, it is possible to use the same holding rib.

  Furthermore, when forming the lower case 31 of the lower casing 51, not only the two members 20 and 21, but also a combination of two or more members, The same structure can be applied to the case 30 and the upper housing 50 even when two or more members are combined to form a case member.

  The configuration of the preferred embodiment of the present invention has been described above. However, it should be noted that such examples are merely illustrative of the invention and do not limit the invention in any way. Those skilled in the art will readily understand that various modifications and changes can be made according to a specific application without departing from the gist of the present invention.

It is a perspective view which shows the external appearance of the portable terminal device provided with the housing structure of the portable terminal device by this invention. It is the disassembled perspective view which decomposed | disassembled the component of the portable terminal device shown in FIG. FIG. 3 is an exploded perspective view showing the disassembled components of the mobile terminal device shown in FIG. 1 at a different angle from FIG. 2. FIG. 2 is a cross-sectional view showing a cross-sectional structure of the lower casing of the mobile terminal device shown in FIG. It is a perspective view which shows the housing structure of the conventional folding type | mold portable terminal device. It is sectional drawing which shows the cross-section when the lower side housing | casing of the conventional portable terminal device shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Standing wall part 2 Side wall 3,3A Hook 4 Hook hole 5 Protrusion 6 Hole part 7 Through hole 8 Through cylinder 9 Notch part 10 Pressing rib 11, 11A End part 12 Thread 13 Screw 14 Screw concealment cap 20, 20A, 21 Member 30, 30A Upper case 31, 31A Lower case 41 Display unit 42 Audio output unit 43 Operation unit 44 Audio input unit 50 Upper housing 51, 51A Lower housing 52 Rotating shaft 100, 100A Mobile terminal device

Claims (2)

A plurality of members one of the case formed by integrating a combination of, a housing structure of the mobile terminal devices constituting the casing in at least two cases of the other case to be combined in one case the,
As a fixing means for combining and integrating the first and second members of the plurality of members to form the one case, a hook disposed on the first member is used as the second member . It has a hook mechanism that inserts and locks into a hook hole drilled in the member ,
Contact with the hook when the combination of said other case with the one case, pressing rib which the hook to suppress the movement in a direction deviating from the hook hole is provided with the other case,
The hook is provided on a standing wall portion of the first member;
The hook hole is provided in a side wall of the second member;
The casing structure of the portable terminal device, wherein the pressing rib is an edge portion of a side wall extending from an end portion of the other case to the one case side . A casing structure of a mobile terminal device that forms a casing with at least two cases of one case formed by combining and integrating a plurality of members, and the other case combined with the one case,
As a fixing means for combining and integrating the first and second members of the plurality of members to form the one case, a hook disposed on the first member is used as the second member. It has a hook mechanism that inserts and locks into a hook hole drilled in the member,
A pressing rib that contacts the hook when the one case and the other case are combined and prevents the hook from moving in a direction away from the hook hole is provided in the other case.
The upper end surface of the hook provided in the one case is provided with a notch portion, and when the one case and the other case are combined, the notch portion and the tip end portion of the pressing rib are mutually connected. A housing structure of a mobile terminal device, characterized by being engaged.

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