Handheld device

The present invention relates to a mobile terminal device provided with a plurality of side keys for performing predetermined operations such as volume adjustment, and in particular, by integrally connecting the side keys with a film sheet member, the mounting work is facilitated and miniaturized. It relates to a mobile terminal device capable of realizing the above.

In mobile phones, a movable side housing having a display panel and a fixed side housing having an operation panel are foldably connected by a connecting portion. In recent years, due to the spread of one-segment mobile phones and the like, when receiving radio and television broadcasts. A volume key (side key) for adjusting the volume is provided on the side surface of the fixed-side housing (for example, Patent Document 1). The side keys provided on the fixed-side housing of the mobile phone are attached to the side surface of the fixed-side housing of the mobile phone in a state of being connected to the side surface of the fixed-side housing by using a rubber plate or the like.

[Conventional side key configuration] Hereinafter, the attachment structure of the side key provided in the conventional mobile phone will be briefly described with reference to FIGS. 7-1 and 7-2. FIG. 7-1 shows a side view showing the state before the combination of the conventional side key and the rubber sheet member, and FIG. 7-2 shows the side view of the state after the combination of the side key and the rubber sheet member. ..

That is, as shown in FIG. 7-1, the side keys 40a and 40a are a substantially square side key main body 41, a bottom plate member 43 located below these side key main bodies 41, and the other (FIG. 7-1, It is provided with a pin member 44 that protrudes toward (the lower side of 2). On the other hand, the rubber sheet member 70 is a sheet-shaped plate member formed in a long shape, and circular holes 71 for inserting the pin member 44 of the side key 40a are formed on both sides of the main body. ..

Then, as shown in FIG. 7-2, these two side keys 40a and 40a are attached and fixed to a predetermined area of the rubber sheet member 70 with an adhesive applied to them to form an integrated key switch. can do.

Then, by operating the side keys 40a and 40a connected and fixed in this way, it is possible to turn on / off the operation switch provided on the circuit board (not shown) provided inside the fixed rear case 120. .. Specifically, for example, the volume volume can be adjusted according to the ON operation of the pin member 44.

<patcit num="1"><text>Japanese Patent Application Laid-Open No. 2005-252343</text></patcit>

<p> However, in the case of the side key mounting structure in the conventional mobile phone, as described above, the rubber sheet member 70 is used to connect the independent side keys 40a and 40a to each other, but this rubber sheet member 70 is used. In addition to the time and effort required to mold the rubber sheet member 70 into a predetermined size, the rubber sheet member 70 needs to be manufactured as a relatively thick sheet (thickness size t = 0.3 mm). Further, the dimensions of the rubber sheet member 70 after molding are the regions L at both ends.₁Since it becomes larger than the external dimensions L of the side keys 40a and 40a, it is a factor that hinders the miniaturization and thinning of mobile phones.</p><p> Therefore, the present invention has been made to solve the above-mentioned problems of the prior art, and it is possible to improve the workability of attaching the side key to the mobile terminal device and to reduce the size of the mobile terminal. The purpose is to provide a terminal device.</p>

<p> The side keys provided in the disclosed mobile terminal device are composed of a pair of side keys arranged with pin members for on / off operation of the operation switch on the circuit board provided in the movable side housing, and are composed of a pair of side keys. The key is connected and fixed by a film sheet member formed to have substantially the same length as the pair of side keys, and the film sheet member and the pair of side keys are connected and fixed on both sides having a sticking surface on both sides. The requirement is that it be done with a tape member.</p>

<p> The side keys provided in the disclosed mobile terminal device are composed of a pair of side keys in which a pin member for on / off operation of an operation switch on a circuit board provided in the movable housing is fixed. The side keys are connected and fixed by a film sheet member formed to have substantially the same length as the pair of side keys, and the film sheet members and the pair of side keys are connected and fixed on the lower surface of the side keys. Since it is performed by the double-sided tape member worn, the workability of attaching the side key to the mobile terminal device can be improved, and the size of the mobile terminal device can be reduced, whereby the side can be placed in a small space (small area). Keys can be placed.</p>

A preferred embodiment 1 of the mobile terminal device according to the present invention will be described in detail below with reference to the accompanying drawings. The first embodiment shows an application example to a mobile phone as a mobile terminal device. The present invention is not limited to the first embodiment.

Here, FIG. 1 is an external perspective view showing an open state of the mobile phone 10 according to the first embodiment of the present invention. As shown in the figure, the mobile phone 10 includes a palm-sized fixed side housing 100 and a movable side housing 200. Then, the fixed side housing 100 and the movable side housing 200 are assembled by the connecting portion 250.

That is, as shown in the figure, the mobile phone 10 is used for transmission and includes various operation keys such as a numeric keypad 111 having a number (0 to 9) key and a function key (mode setting key) 112. The fixed-side housing 100, the fixed-side housing 100, and the movable-side housing 200 having an LCD module (not shown) formed to have substantially the same size are foldably connected by a connecting portion 250. The fixed-side housing 100 and the movable-side housing 200 are formed in a box shape, and as the material thereof, for example, a lightweight and high-strength magnesium alloy is used.

Of these, the fixed-side housing 100 includes a fixed front case 110 on which an operation panel 115 having various operation keys such as a numeric keypad 111 is arranged, and a fixed rear case 120 located on the back side (lower side in FIG. 1). It has a two-piece structure.

As shown in the figure, the fixed front case 110 is provided with the above-mentioned numeric keypad 111, the function key 112, and the mouthpiece 113 in which the microphone for converting the user's voice into an electric signal is arranged inside. .. Both cases 110 and 120 are assembled by screwing and fixing with mounting screws (not shown) at four positions, respectively.

Of these, a foldable antenna 30 for external attachment is attached and fixed to the side plate case portion 116 of the fixed front case 110. Further, a pair of volume keys (side keys) 40 and 40 for adjusting the volume of a radio or the like are arranged on the side plate case portion 121 of the fixed rear case 120, respectively.

Similarly, the movable side housing 200 includes a movable front case 210 and a movable rear case 220 located on the back side (lower side in FIG. 1). As shown in the figure, a large display panel 211 and a display unit 212 for visually recognizing the LCD module (not shown) are provided at substantially the center of the surface of the movable front case 210.

Further, at the upper end of the movable front case 210, an earpiece 213 is provided for listening to the voice by touching the ear of the user of the mobile phone 10. Both cases 210 and 220 are also mounted and fixed at four positions by mounting screws (not shown), and a blind cover 214 for screws is provided at the upper position of the display panel 211.

[Structure of side key and film sheet member] Next, the details of the side key and the film sheet member will be described with reference to FIGS. 2 to 5. Here, FIG. 2 is a perspective view showing the state before the combination of the side key and the film sheet member, FIG. 3 is a side view showing the state after the combination of the side key and the film sheet member, and FIG. 4 is a side view. A side view showing the state before the key and the film sheet member are combined, FIG. 5-1 is an upper view showing the overall configuration of the side key, and FIG. 5-2 is a back view showing the overall configuration of the side key. Each is shown.

Here, as described above, the mobile phone 10 of the first embodiment is characterized in the configuration of the side key 40 and the film sheet member 50 arranged in the side plate case portion 121 of the fixed rear case 120. , The configuration of these side keys 40 and the film sheet member 50 will be described.

Briefly, in the mobile phone 10 of the first embodiment, the pair of side keys 40, 40 provided in the side plate case portion 121 of the fixed rear case 120 has the length dimension of the pair of side keys 40, 40. The film sheet members 50 formed to have substantially the same dimensions are connected and fixed, and the film sheet members 50 and the side keys 40 and 40 are connected and fixed by double-sided tape members 60 and 61 having adhesive surfaces at both ends. It is unique in that.

That is, as shown in FIGS. 2 to 5-2, the side keys 40 and 40 include a substantially square side key main body 41 and a bottom plate member 43 located below these side key main bodies 41. , These two side keys 40, 40 are connected and fixed by a film sheet member 50 so as to be an integrated key switch. An arrow icon (Fig. 5-1) indicating the volume adjustment direction is formed on the upper surface 42 of the side key main body 41 of the pair of side keys 40 and 40.

In addition, pin members 44 projecting toward one side (right side in FIG. 2, lower side in FIGS. 3 and 4) are fixedly fixed at substantially the center of the bottom plate member 43 located below the side key main body 41. Has been done.

The pin member 44 performs an on / off operation (level adjustment) of an operation switch on a circuit board (not shown) provided inside the fixed rear case 120. Specifically, the volume volume is adjusted according to the ON operation state of the pin member 44.

On the other hand, as shown in FIG. 4, the film sheet member 50 is long and thin (thickness dimension t).₁It is equipped with a transparent film sheet body 51 molded to (= about 0.1 mm), and the overall shape (length dimension) of this film sheet body 51 is almost the same as the shape and length of the pair of side keys 40, 40. It is molded to do so.

A long, transparent PET film sheet is used for the film sheet member 50. This PET film sheet is a polyethylene terephthalate resin material that is elastic and easy to process, which is used as a protective film for the surface of polarizing plates such as liquid crystal displays and plasma displays.

Here, since the film sheet member 50 is made of a soft material like the rubber sheet member conventionally used, the range of choices can be increased in terms of thickness and size. As a result, the side keys 40 and 40 can be arranged on the inner side of the outer dimensions.

Specifically, since the connecting portion can be configured smaller than the external dimensions of the conventional pair of side keys 40a and 40a shown in Fig. 7-1 and Fig. 7-2, the side keys can be arranged in a narrower design, and the side keys can be arranged next to each other. Since the distance between the pair of side keys 40a and 40a that match can be narrowed, the mobile phone 10 can be made smaller and thinner.

Then, on both end sides of the film sheet main body 51 constituting the film sheet member 50, a pair of circular holes for inserting a pair of pin members 44 fixed to the bottom plate members 43 of the side keys 40 and 40, respectively. 51a (Fig. 2) is formed.

Here, the film sheet member 50 is attached and fixed to the side keys 40 and 40 by adhering to both sides provided on one side (upper side of FIGS. 3 and 4) of the film sheet main body 51 constituting the film sheet member 50. This is done by double-sided tape members 60, 61 having faces.

That is, the other side (lower side of FIGS. 3 and 4) of the adhesive double-sided tape members 60 and 61 is attached and fixed to both end sides 52 and 52 of the film sheet body 51 of the film sheet member 50. ..

Here, the adhesive surface regions of the double-sided tape members 60 and 61 are on both end 63 sides (FIG. 4) of the film sheet member 50. Specifically, with the pair of pin members 44 and 44 of the side keys 40 and 40 inserted into the circular holes 51a (FIG. 2) of the film sheet member 50, the side keys 40 are formed by the double-sided tape members 60 and 61. , 40, the film sheet member 50 can be attached and fixed.

That is, since the central region 53 (FIG. 4) to which the double-sided tape members 60 and 61 are not attached and fixed is not the adhesive region of the double-sided tape members 60 and 61, these pair of side keys 40 and 40 are made of film. As shown in FIGS. 6-1 and 6-2, the seat member 50 can be moved up and down around the central region 53 while being connected and fixed.

[Operation mode of side key 40] FIGS. 6-1 and 6-2 are side views showing the operation mode of the side keys. That is, as shown in FIGS. 6-1 and 6-2, the sticking and fixing areas of the double-sided tape members 60 and 61 are the side keys 40 and 40 on both ends 52 and 52, so that the pair of sides For the keys 40 and 40, the central area 53 outside the sticking fixing area becomes a movable area, so that each of the side keys 40 and 40 can be independently directed in a predetermined direction (Fig. 6-1 and Fig. 6). It can be moved in the vertical direction of -2).

Specifically, as shown in FIG. 6-1 when the side key 40 on one side (right side in FIG. 6-1) is pressed, the film sheet member 50 is centered on the central region 53. Since it is transformed into, the side key 40 can be easily moved to a predetermined position by itself.

Similarly, when moving the side key 40 on the other side (left side in FIG. 6-2), when the side key 40 is pressed, the film sheet member 50 is deformed around the central region 53, so that this side key 40 is easily deformed. The side key 40 can be moved independently to a predetermined position.

In the first embodiment, as described above, the PET film sheet is used for the film sheet member 50, but the film sheet is not limited to this PET film sheet and has elasticity and is easy to process. If so, another film sheet may be used.

As described above, in the mobile phone 10 of the first embodiment, the pair of side keys 40, 40 provided in the side plate case portion 121 of the mobile phone 10 is substantially the same as the length dimension of the pair of side keys 40, 40. The film sheet members 50 formed to have the same dimensions are connected and fixed, and the connection and fixing of these film sheet members 50 and the pair of side keys 40 and 40 are performed by attaching sticking surfaces to both sides of the side keys 40 and 40. Since it is performed by the double-sided tape members 60 and 61, the side key attachment workability can be improved, and the side keys 40 and 40 can be arranged in a small space (small area) of the mobile phone 10, whereby the mobile phone can be carried. The telephone 10 can be made thinner and smaller.

(Other Examples) Although Example 1 of the present invention has been described so far, the present invention is carried out in various different examples in addition to the above-described examples within the scope of the technical idea described in the claims. You can also do it.

That is, in the first embodiment, the application example of the folding method using the hinge portion to the mobile phone has been described, but the application is not limited to the hinge structure shown in the illustrated example, and can be applied to various hinge structures, and further, the folding method is limited to the hinge structure. However, the present invention can be similarly applied even if the movable side housing can be freely overlapped with the fixed side housing by, for example, a slide type or an in-plane rotation type connecting portion configuration.

Further, in the first embodiment, the mobile terminal device has been described as an application example to a mobile phone, but the present invention is not limited to this, and a small information processing terminal such as a PDA (Personal Digital Assistants) can be used. It can be applied to side keys provided in various other portable terminal devices such as small music playback devices, mobile TVs, and portable game machines.

Further, in the first embodiment, the attachment structure of the side key is applied to the key as the volume key. In addition to the volume key, the side key can be used for radio broadcasting and television broadcasting programs of one-segment mobile phones. It can also be applied to channel keys that change.

The following additional notes will be further disclosed with respect to the embodiment including the above-mentioned Example 1.

(Appendix 1) A movable side housing having a display panel and a liquid crystal display unit, and a fixed side housing in which at least a plurality of numeric keypads are arranged and a pair of side keys for performing a predetermined operation are arranged. It is a mobile terminal device equipped with A mobile terminal device characterized in that the pair of side keys are integrally connected and fixed by a film sheet member formed having substantially the same length as the pair of side keys.

(Appendix 2) A pair having a movable housing having a display panel and a liquid crystal display, an operation panel key in which at least a plurality of numeric keys are arranged, and a pin member for operating an operation switch on a circuit board that performs a predetermined operation. It is a mobile terminal device including a fixed side housing in which the side keys of the above are arranged. A mobile terminal device characterized in that the pair of side keys are integrally connected and fixed by a film sheet member formed having substantially the same length as the pair of side keys.

(Appendix 3) The mobile terminal device according to Appendix 1 or 2, wherein the connection and fixing of the pair of side keys and the film sheet member are performed by a double-sided tape member having attachment surfaces on both sides.

(Appendix 4) Double-sided tape members having attachment surfaces on both sides are provided at both ends of the film sheet member, and the film sheet member and the pair of side keys are connected and fixed by the double-sided tape member. The portable terminal device according to Appendix 3, wherein both ends of the film sheet member and both ends of the pair of side keys are attached and fixed to each other.

(Supplementary Note 5) The description in Appendix 2, 3 or 4, wherein a through hole through which the pin member fixed to the pair of side keys is inserted is formed at a predetermined position of the film sheet member. Mobile terminal device.

(Supplementary Note 6) The mobile terminal device according to any one of Supplementary note 1 to 5, wherein the material of the film sheet member is a polyethylene terephthalate resin material.

<figref num="1">It is external perspective view which shows the open state of the mobile phone which concerns on Example 1. FIG.</figref><figref num="2">It is a perspective view which shows the state before the combination of a side key and a film sheet member.</figref><figref num="3">It is a side view which shows the state after the combination of a side key and a film sheet member.</figref><figref num="4">It is a side view which shows the state before the combination of a side key and a film sheet member.</figref><figref num="5-1">It is a top view which shows the whole structure of a side key.</figref><figref num="5-2">It is a back view which shows the whole structure of a side key.</figref><figref num="6-1">It is a side view which shows the operation mode of a side key. (1)</figref><figref num="6-2">It is a side view which shows the operation mode of a side key. (2)</figref><figref num="7-1">It is a side view which shows the state before the combination of the conventional side key and a rubber sheet member.</figref><figref num="7-2">It is a side view which shows the state after the combination of the conventional side key and a rubber sheet member.</figref>

Code description

10 mobile phones 40 side key 41 Side key body 42 Top surface 43 Bottom plate member 44 pin member 50 Film sheet member 51 Film sheet body 53 Both ends 54 Central area 60, 61 Double-sided tape member 100 Fixed side housing 110 fixed front case 115 Operation panel 116, 121 Side plate case 120 fixed rear case 200 Movable side housing 210 Movable front case 211 Display panel 220 movable rear case 250 connection