JP2004336582A - Mobile communication terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal which can be modified to an individual mobile communication terminal by easily replacing a key sheet by an attaching cover and changing the appearance so as not to make a user tired of the same device type. <P>SOLUTION: A key switch 7 is arranged on the front surface of an enclosure of the mobile communication terminal, and a key sheet 10 covering the key switch 7 is so constituted that it can be attached without using a tool or the like by an attaching cover 4 independent of the enclosure, and thus the key sheet 4 is easily replaced without requiring decomposition of the enclosure itself. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mobile communication terminal such as a mobile phone and a PHS, and more particularly to a mobile communication terminal that can change its appearance by a simple operation.
[0002]
[Prior art]
BACKGROUND ART Conventionally, a surface decoration device capable of replacing a decoration sheet is described in Patent Literature 1 in order to prevent a mobile phone of the same model from being mistaken for the owner and to avoid getting tired. .
[0003]
[Patent Document 1]
Utility Model Registration No. 3054414 [0004]
This mobile phone comprises a mobile communication device main body having operation buttons in a case on a back side, a rubber sheet, a main body cover on a front side, a decorative sheet arranged on the front side of the main body cover, and a cover for holding the same. The screw head is assembled with specially shaped mounting bolts that are not commercially available plus or minus ones, and a plurality of button pressing parts are projected on the surface of the rubber sheet corresponding to the operation buttons. Characters, numbers, symbols, and the like are displayed on the surface of each button pressing portion. This rubber sheet is described as having various designs and colors available in bulk or set sales (see paragraphs 0009 and 0010), and a plurality of decorative sheets having different designs such as designs and colors are provided. It is described that sheets can be prepared and replaced (see paragraph 0012).
[0005]
[Problems to be solved by the invention]
The mobile phone described in Patent Literature 1 allows a decorative sheet to be replaced, and various designs and colors of rubber sheets can be prepared. However, even if the rubber sheet is replaced, a special driver is required. The complicated and difficult work of removing and assembling the main body cover itself constituting the housing of the mobile phone by using is required.
[0006]
As described above, the input keyboard and key sheet of the conventional mobile phone have a configuration that is housed in the housing, and replacement of the key sheet requires disassembly of the housing itself by a special driver. The replacement was extremely difficult.
(Purpose)
An object of the present invention is to make it possible to easily replace a key sheet, which has been difficult to replace with a mounting cover, by using an attachment cover, to prevent a change in the appearance even of the same model and to avoid getting tired, and to provide a unique mobile communication terminal. And a mobile terminal that can be changed.
[0007]
[Means for Solving the Problems]
A mobile communication terminal according to the present invention includes a mobile communication terminal body having a plurality of key switches and a housing-side engaging concave and convex portion on a front surface of a housing, and a rubber having a pressing button portion protruding to a position corresponding to each of the key switches. A cover for attaching the rubber sheet to the front surface of the housing so as to cover the plurality of key switches, and a cover for engaging with the insertion hole for inserting the button portion and the housing-side engaging concave and convex portion (hook) on the front surface of the housing. And a mounting cover having a side engaging concave / convex portion (hook), wherein the rubber sheet can be replaced. The plurality of key switches may be disposed on a base integrally formed on the front surface of the housing, or may be disposed on a circuit board mounted in the housing exposed from an opening provided on the front surface of the housing. It is characterized by having been done.
[0008]
Further, the housing has a folding structure of first and second housings configured to be rotatable by a hinge portion, and the first and second housings are respectively a front half housing and a rear half housing. Wherein the mounting cover has a substantially rectangular front portion, a skirt portion extending in a substantially perpendicular direction from at least two sides of the front portion corresponding to the sides of the housing, and an end of the skirt portion. And a cover-side engaging concave / convex portion provided on the portion, and slides from the end direction of the housing to engage with the housing-side engaging concave / convex portion of the housing, and latch-joins on the hinge side having a check function. The key switch is composed of an electrode pair, and the back surfaces of the button portions of the rubber sheet each independently have conductivity.
[0009]
(Action)
By arranging a key switch on the front surface of the housing of the mobile communication terminal and configuring a key sheet covering the key switch by a mounting cover independent of the housing so that the key sheet can be mounted without using tools or the like, The replacement does not require disassembly of the housing itself, and can be easily replaced.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the mobile communication terminal of the present invention will be described in detail.
FIG. 1 is a diagram showing an appearance of a mobile communication terminal according to an embodiment of the present invention. In the present embodiment, the first housing on the side on which the keyboard is arranged and the second housing (not shown) on which the liquid crystal display screen is arranged are hinged by the hinge portion having the hinge shaft 3. Is an example of a foldable mobile phone that is rotatably connected around a mobile phone.
[0011]
A rear half housing (hereinafter, referred to as a rear cover) 2 such as a rear cover, which is a rear cover, which is located on the outside in a state where the first and second housings of the mobile phone are folded, and the housing in a folded state. A front half case (hereinafter referred to as a front case) 1 such as a front case, which is a front case, which is located inside; a key sheet for covering keys on the front case 1; And a mounting cover 4 for mounting the same.
[0012]
FIG. 2 is a diagram showing a configuration of a first housing in which a keyboard with a mounting cover removed is arranged. In the present embodiment, as shown in FIG. 2A, a structure having a base 6 on the front surface of the front case 1 formed by integral molding or the like, and a key switch 7 for input is arranged on the base 6. A step is formed around the surface of the base 6 except for the hinge shaft 3 side and the front case 1, and the stepped front case 1 is provided with one or more hooks or the like in the longitudinal direction. An engagement concave / convex portion 8 is provided.
[0013]
As shown in FIG. 2B, the first housing has a hinge shaft 3 side with a step formed on the hinge portion side of the base 6 with the base 6, and an upper part of the base 6. A slit-shaped through hole 9 is formed on the inside of the front case 1, and an engaging claw of the mounting cover 4 can be inserted into the through hole 9.
[0014]
FIG. 3 is a diagram showing a configuration of the key sheet. The key sheet 10 is a rubber-like sheet that covers a plurality of key switches 7 such as numeric keys and various function keys on a base 6 on the front case 1 side, and is pressed at a position corresponding to each of the key switches 7. The button 12 protrudes, and the four corners are provided with mounting through-holes 11 having dimensions that allow the mounting protrusions formed on the back surface of the mounting cover 4 to penetrate with a predetermined friction.
[0015]
4 and 5 are views showing the configuration of a mounting cover for attaching a key sheet to a housing, wherein FIG. 4 is a front side and FIG. 5 is a back side. The mounting cover 4 has a substantially rectangular front surface, a substantially U-shaped exterior plate having a cross section in a direction perpendicular to the longitudinal direction, and a position corresponding to the button portion 12 of the key sheet 10 as shown in FIG. An insertion hole 14 for inserting the button portion 12 is provided. A skirt portion 15 is provided at both ends along the longitudinal direction of the mounting cover 4 and extends substantially perpendicularly from a substantially rectangular front surface. One or more skirt portions 15 are provided at the end of the skirt portion 15 in the longitudinal direction of the front case 1. And a cover-side engaging uneven portion 16 such as one or a plurality of hooks that engages with the housing-side engaging uneven portion 8 at a position corresponding to the longitudinal end of the front case 1 on the hinge shaft 3 side. An engaging claw 13 having a hook having an inclined surface formed on the front surface side of the mounting cover 4 is provided at the tip, and a sheet mounting projection 17 is provided inside the mounting cover 4 at a position corresponding to the key sheet insertion hole 11. Is provided.
[0016]
The key sheet 10 is mounted by the mounting cover 4 so that the back surface of each button portion 12 overlaps each key switch 7. By pressing the button portion 12 of the key sheet 10, the key switch 7 is pressed and the key sheet 7 is pressed. Implement key input function.
(Description of operation)
Next, the mounting operation of the key sheet to the housing by the mounting cover according to the present embodiment will be described in detail below with reference to FIGS. Attachment of the key sheet 10 of the mobile phone according to the present embodiment includes attachment of the key sheet 10 to the attachment cover 4 and attachment of the attachment cover 4 with the key sheet 10 attached to the front case 1.
[0017]
First, as shown in FIG. 4, the key sheet 10 is attached to the mounting cover 4 with the back surface of the mounting cover 4 turned upward, and the key sheet 10 shown in FIG. The key sheet 10 is positioned by penetrating the key sheet mounting projections 17 at the four corners shown in FIG. 5 through the mounting insertion hole 11, and each button part 12 of the key sheet 10 fits into the insertion hole 14 of the mounting cover 4. The key sheet 10 is held by the predetermined friction between the protrusions 17 of the mounting cover 4 and the mounting holes 11 of the key sheet 10 in a penetrating state.
[0018]
Next, when the mounting cover 4 on which the key sheet 10 is mounted is mounted on the housing, the mounting cover 4 is turned upside down in the direction shown in FIG. 3, is mounted on the front case 1 with a slight shift in a direction opposite to that of the hinge 3, and then is moved (slid) so as to slide in the direction of the hinge 3 from the direction opposite to the hinge 3, so that the hook of the mounting cover 4 and the hook of the front case are moved. Are engaged with each other so that the opening sides of both hooks are engaged with each other, and the engaging claws 13 of the mounting cover are inserted into the through holes 9 on the hinge shaft 3 side of the front case shown in FIG. When the engaging claw 13 is inserted into the through hole, the inclined surface of the claw portion slides on the upper portion of the through hole, and the claw portion penetrates while the engaging claw deflects downward, and the tip passes through the rear surface of the housing of the through hole 9. By the way, the mounting cover 4 is fixed by the latch mechanism by which the tip of the claw meshes with the upper side of the rear surface of the housing wall. By the above procedure, the key sheet and the mounting cover are mounted on the mobile phone body.
[0019]
Further, when the key sheet 10 and the mounting cover 4 of the mobile phone shown in FIG. 1 are replaced, the vicinity of the engaging claw of the mounting cover 4 is pressed from the front side so that the engaging claw 13 is reversed from the through hole 9 of the front case 1. The locking mechanism is released, and the mounting cover 4 is slid in the direction opposite to the hinge shaft 3 to release the engagement between the hooks of the mounting cover 4 and the hooks of the front case 1. 4 is removed from the front case 1. Then, the key sheet 10 and / or the mounting cover 4 having different colors, shapes, and patterns are replaced, and the key sheet 10 and the mounting cover 4 are replaced in the above-described manner.
[0020]
Here, as the replacement key sheet 10, a variety of types having different designs and textures are prepared, so that the number of replacement variations can be increased. Similarly, as for the mounting cover 4, it is possible to increase the number of replacements by preparing a plurality of mounting covers 4 having different designs, materials, shapes, and textures.
[0021]
(Other embodiments)
In the above embodiment, the example in which the mounting cover 4 with the key sheet 10 mounted thereon is slid and mounted on the base 6 having the key switch of the front case 1 is shown. Various embodiments can be configured depending on differences in the configuration, the mounting method, and the like.
[0022]
FIG. 6 is a diagram illustrating an example of the second embodiment. In the present embodiment, the hinge shaft 23 is provided on the front case 21 side, and the front case 21 has an opening 24 having a large overall size of a plurality of key switches 22. On the front case 21, an electronic circuit board 25 on which a key switch 22 which is an electrode pair constituting an electric switch is disposed on one surface is mounted so that the electrode pair side is exposed from the opening 24.
[0023]
FIG. 7 is a diagram showing the shape and structure of the key sheet according to the second embodiment. The key input switch according to the present embodiment is a key switch in which individual conductive materials 28 whose back surfaces of the respective button portions 27 are electrically insulated from each other when the button portions 27 of the key sheet 29 are pressed are electrode pairs. This is an example in which the pressure contact with the electrode 22 and the reduction of the electric resistance between the electrode pairs are used for key input. The entire shape and size of the key sheet 29 are the same as those of the opening 24 of the front case 21, and the button portion 27 has a structure in which an insulated seed-like conductive material 28 is adhered to the back surface thereof.
[0024]
FIG. 8 is a diagram showing the shape and structure of the mounting cover according to the second embodiment. The mounting cover 30 is provided with an insertion hole 31 corresponding to the button portion 27 of the key sheet 29, and is inserted into and engaged with an engagement hole 26 which forms a housing-side locking concave / convex portion on the front surface of the front case 21 on the back surface. It has a cover-side engaging concave / convex portion 33 and a hook portion 32 on the hinge shaft 23 side.
[0025]
In the attachment or replacement of the key sheet in the present embodiment, the key sheet 29 shown in FIG. 7 is placed in the opening 24 of the front case 21 shown in FIG. This is realized by fitting the key switch 22 as a pair so as to face the key switch 22 and mounting the mounting cover 30 shown in FIG. Here, the mounting cover 30 can be fixed by providing a latch mechanism having an appropriate check function and latching and coupling to a step portion on the hinge portion 31 side of the front case 21.
[0026]
The second embodiment can be further modified. For example, in the first embodiment, a circuit board having an electrode pair is used, a part of the board is exposed from the upper surface of a base, and a key sheet provided with a conductive material on the back surface of each button portion is used. FIG. 1 shows a structure of a mobile phone mounted with a mounting cover as shown in FIG.
[0027]
Furthermore, as the housing structure of the mobile phone, the case for mounting the circuit board is changed from the front side to the rear side to form a structure including a front cover and a rear case, and a hinge axis of a hinge portion is provided on the rear case side, The cover is provided with openings of the overall size of the key switch, and after mounting the switch structure such as the electrode pair of the circuit board on the rear case facing the front side, the key sheet is mounted on the circuit board having the electrode pair etc. It is also possible to configure so as to be attached by a cover.
[0028]
In the above embodiment, the housing-side engaging unevenness and the cover-side engaging unevenness, which are the mounting means of the mounting cover, are hook-like or groove-and-claw-like engaging with each other without using bolts or the like. Obviously, engagement structures are available.
[0029]
【The invention's effect】
According to the present invention, the key switch is arranged on the front surface of the housing, and the key sheet covering the key switch is mounted by an engaging means such as a hook by a mounting cover independent from the housing, so that the key sheet is The user does not need to disassemble the housing for replacement, and the user can easily replace the key sheet. Various key sheets are prepared and replaced appropriately to prevent the appearance of getting tired, A completely different personality can be obtained even with a mobile communication terminal of this type, and it can be used as a mobile communication terminal with a different sense.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an appearance of a mobile communication terminal according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a configuration of a housing in which a keyboard with a mounting cover removed is arranged.
FIG. 3 is a diagram showing a configuration of a key sheet.
FIG. 4 is a diagram illustrating a configuration of a front side of a mounting cover.
FIG. 5 is a diagram showing the configuration of the back side of the mounting cover.
FIG. 6 is a diagram illustrating a configuration of a second embodiment.
FIG. 7 is a diagram illustrating a shape and a structure of a key sheet according to a second embodiment.
FIG. 8 is a diagram illustrating the shape and structure of a mounting cover according to a second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Front half housing 2 Rear half housing 3 Hinge shaft 4, 30 Mounting cover 6 Base 7, 22 Key switch 8, 26 Housing side locking unevenness 9 Through hole 10, 29 Key sheet 11 Insertion hole for mounting 13, 32 Hook or latch mechanism with check function 14, 31 Insertion hole 15 for button part Skirt 16, 33 Concavo-convex part 17 for cover-side engagement Key sheet mounting projection 25 Circuit board

Claims (6)

A mobile communication terminal main body having a plurality of key switches and a housing-side engaging concave / convex portion on a front surface of the housing, a rubber sheet having a pressing button portion protruding to a position corresponding to each of the key switches, and the rubber sheet; Attaching to the front surface of the housing so as to cover the plurality of key switches, a mounting cover having an insertion hole through which the button portion is inserted and a cover-side engagement unevenness portion engaging with the housing-side engagement unevenness portion on the front surface of the housing, Wherein the rubber sheet can be replaced. The mobile communication terminal according to claim 1, wherein the plurality of key switches are arranged on a base integrally formed on a front surface of a housing. 2. The mobile communication terminal according to claim 1, wherein the plurality of key switches are arranged on a circuit board mounted in a housing exposed from an opening provided on a front surface of the housing. The housing has a folded structure of first and second housings that are rotatable by hinge portions, and the first and second housings each include a front half housing and a rear half housing. 4. The mobile communication terminal according to claim 1, wherein the mobile communication terminal is configured. The mounting cover includes a substantially rectangular front portion, a skirt portion extending in a substantially right angle direction from at least two sides of the front portion corresponding to the sides of the housing, and a cover side member provided at an end of the skirt portion. And a latching part having a check function on the hinge part side by sliding from the end direction of the housing to engage with the housing-side engaging unevenness part of the housing. 5. The mobile communication terminal according to 3 or 4. The mobile communication terminal according to any one of claims 1 to 5, wherein the key switch is configured by an electrode pair, and a back surface of the button portion of the rubber sheet has conductivity independently of each other.

Images