JP2004032271A - Mobile terminal equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide mobile terminal equipment provided with an imaging unit that can attain compatibility between the mountability of the imaging unit inside an enclosure and the surety of the electric characteristic of the imaging unit. <P>SOLUTION: The mobile terminal equipment is provided with: the enclosure 3 comprising a pair of cases 41, 42 that are divided in the thickness direction and can be opened / coupled to each other in the thickness direction; and the imaging unit 10 including: an imaging element 23 and a lens unit 22 placed inside the enclosure 3; and a board 24 on which the imaging element 23 and the lens unit 22 are mounted. A recess 16b that permits the imaging unit 10 to be freely inserted inside the enclosure 3 in the thickness direction and inhibits the inserted imaging unit 20 from moving in a direction orthogonal to the thickness direction is formed inside the enclosure 3, and an energizing member 45 energizing and fixing the imaging unit 10 to the other case is interposingly provided among the recess 16b, one of the pair of the cases 41, 42, and the imaging unit 10. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a portable terminal device such as a portable telephone, a simple portable telephone, a PDA (Personal Data Assistant), and a portable personal computer having an imaging unit for photographing a subject.
[0002]
[Prior art]
As a portable terminal device, there is a portable terminal device having an imaging unit for photographing a subject. The imaging unit includes an imaging element that captures an image of a subject, a lens unit that forms an image of the subject on the imaging element, and a board on which the imaging element and the lens unit are mounted. For example, there is an imaging unit that can be detachably attached to the outside of the portable terminal device body.
In this mobile terminal device, the imaging unit is mounted on the main body of the mobile terminal device, and the imaging by the imaging unit is performed.
[0003]
[Problems to be solved by the invention]
However, in the above-described portable terminal device, since the imaging unit is configured to be mounted on the outside of the main body of the portable terminal device, there is a possibility that the imaging unit may be lost.
In view of this, there has been proposed a device in which the imaging unit is mounted inside the housing. However, there has been a problem that it is difficult to achieve both the mountability of the imaging unit inside the housing and the securing of the characteristics of the imaging unit.
In other words, when the imaging unit is pressed down by excessive force and fixed inside the housing, the imaging unit can be firmly fixed inside the housing, and the mountability inside the housing can be ensured. When the substrate is distorted, the image taken by the imaging unit is disturbed, and the original characteristics of the imaging unit cannot be ensured, and it is difficult to achieve both the mounting property of the imaging unit and the securing of the characteristics. In addition, when the configuration is such that the imaging unit is simply held in order to ensure the characteristics of the imaging unit, the imaging unit moves inside the housing, and the mountability of the imaging unit cannot be ensured.
[0004]
The present invention has been made in view of the above-described circumstances, and in a portable terminal device including an imaging unit, a portable terminal device capable of ensuring both the mountability of the imaging unit inside a housing and the securing of electrical characteristics of the imaging unit. It is intended to provide a terminal device.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention proposes the following means.
The invention according to claim 1 is a housing comprising a pair of cases divided in a thickness direction and openable and connectable to each other in the thickness direction, an imaging device arranged inside the housing, and the imaging device A lens unit that forms an image of a subject on the top, and an imaging unit including a substrate on which the imaging element and the lens unit are mounted, and the imaging unit is freely insertable from the thickness direction inside the housing, A recess is formed to prevent the inserted imaging unit from moving in a direction perpendicular to the thickness direction, and further, any one of the recess and the pair of cases may be provided between the imaging unit. A portable terminal device has been proposed in which an urging member for urging and fixing the imaging unit toward the other case and interposed therebetween is provided.
[0006]
ADVANTAGE OF THE INVENTION According to the portable terminal device which concerns on this invention, when the imaging part is inserted in the recessed part, it is prevented that an imaging part moves in the direction orthogonal to the thickness direction of a housing | casing. Then, when the pair of cases are coupled to each other from this state, the imaging unit is sandwiched between the urging member and the other case inside the housing, so that the imaging unit is prevented from moving in the thickness direction of the housing. . As described above, the imaging unit is fixed inside the housing.
Accordingly, the force for sandwiching the imaging unit between the urging member and the other case can be used only to prevent the movement of the imaging unit in the thickness direction of the housing, and therefore, the force for sandwiching the imaging unit due to excessive force. Eliminates the need.
[0007]
According to a second aspect of the present invention, in the portable terminal device according to the first aspect, a protrusion extending in the thickness direction is formed on one of the concave portion and the imaging unit. The portable terminal device according to claim 1, wherein a concave ridge portion engageable with the ridge portion is formed on the mobile terminal device.
ADVANTAGE OF THE INVENTION According to the portable terminal device which concerns on this invention, it can prevent easily that an imaging part moves in the direction orthogonal to the thickness direction of a housing | casing by engaging a ridge and a concave ridge. it can.
[0008]
According to a third aspect of the present invention, in the portable terminal device according to the second aspect, the substrate is provided with a rib, and the rib is formed with the protrusion or the recess. The device is proposed.
ADVANTAGE OF THE INVENTION According to the portable terminal device which concerns on this invention, since a board | substrate is reinforced by a rib, and since the ridge part or the concave ridge part is formed in the rib, while attaching an imaging part to a recessed part, an attachment Even when the case is urged by the urging member, distortion of the substrate can be prevented.
[0009]
According to a fourth aspect of the present invention, in the portable terminal device according to any one of the first to third aspects, the imaging unit includes an insertion-side connection terminal provided on a front surface in the insertion direction. A mobile terminal device is proposed in which a receiving-side connection terminal connectable to an insertion-side connection terminal of the imaging unit is provided inside the body toward a rear side in the insertion direction.
According to the portable terminal device of the present invention, when the imaging unit is inserted into the concave portion, the insertion-side connection terminal is oriented in the same direction as the insertion direction of the imaging unit, and the receiving side provided inside the housing. Since the image pickup unit can be connected to the connection terminal, the image pickup unit can be easily attached to the inside of the housing.
[0010]
According to a fifth aspect of the present invention, in the portable terminal device according to any one of the first to fourth aspects, the rigidity of the casing is reinforced inside the casing, and the reinforcement is detachable from the case. The mobile terminal device according to any one of claims 1 to 4, wherein a frame is provided and the recess is formed in the reinforcing frame.
ADVANTAGE OF THE INVENTION According to the portable terminal device which concerns on this invention, since the recessed part which inserts an imaging part is formed in a reinforcement frame, the structure of a case becomes simple and manufacture of a portable terminal device becomes easy.
[0011]
The invention according to claim 6 proposes the portable terminal device according to claim 5, wherein the reinforcing frame is made of magnesium.
ADVANTAGE OF THE INVENTION According to the portable terminal device which concerns on this invention, since the reinforcement frame is formed from magnesium, high rigidity is acquired and the deformation | transformation and damage of an imaging part can be prevented, and the merit that an imaging part is hard to be charged is obtained. There is.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 11 show an embodiment according to the present invention. The embodiment described here is a case where the present invention is applied to a mobile phone. As shown in FIGS. 1 and 2, a mobile phone (portable terminal device) 1 according to this embodiment connects a first housing 2 and a second housing 3 to each other by a hinge 4 so as to be freely rotatable. It is made. Various operation keys 5 such as a call key and an end key and a microphone 6 are provided inside the first housing 2, and these are exposed on the inner surface 7 side of the first housing 2. .
[0013]
The display unit 8, the speaker 9, and the imaging unit 10 are provided inside the second housing 3. The display surface 8 a and the speaker 9 of the display unit 8 are located on the inner surface 11 side of the second housing 3. It is exposed. The imaging unit 10 is exposed on the outer surface 12 side of the second housing 3, and a mirror 13 is provided on the outer surface 12 adjacent to the imaging unit 10.
[0014]
The operation keys 5 perform operations such as switching of a call state and photographing of the imaging unit 10. The display unit 8 displays a communication state between the base station and the mobile phone 1, a video captured by the imaging unit 10, and the like. It is for displaying information. Further, the microphone 6 and the speaker 9 perform a call with the first and second housings 2 and 3 being opened from each other. The mirror 13 is for confirming a photographing state such as a photographing range when the user of the mobile phone 1 takes a picture of the self with the image pickup unit 10 as a subject.
[0015]
As shown in FIG. 3, in addition to the display unit 8 and the imaging unit 10, a display unit cover 14, a control board 15, and a reinforcing frame 16 are provided inside the second housing 3. . When housed inside the second housing 3, the display unit cover 14, the display unit 8, the control board 15, and the reinforcing member extend from the inner surface 11 side to the outer surface 12 side of the second housing 3. The frame 16 and the imaging unit 10 are sequentially stacked, and the display unit 8, the control board 15, and the reinforcing frame 16 are fixed to each other by a plurality of screws 17.
[0016]
The display unit cover 14 protects the periphery of the display surface 8a of the display unit 8.
The control board 15 has various electronic components mounted thereon, and controls the operation of each of these sections while being electrically connected to the display section 8, the operation keys 5, the microphone 6, the speaker 9, and the imaging section 10. It has the function of doing. Of the surface of the control board 15, a connection terminal (receiving-side connection terminal) 15b for electrically connecting to the imaging unit 10 is provided on an outer surface 15a facing the outer surface 12 of the second housing 3. ing.
[0017]
The reinforcing frame 16 is made of magnesium and protects the control board 15 and the display unit 8 from external impacts and the like. An opening 16a and a recess 16b are formed in the reinforcing frame, and the opening 16a is connected to the connection terminal with the control board 15 and the display unit 8 being overlapped as shown in FIG. 15b faces the outer surface 16c side of the reinforcing frame 16.
[0018]
The concave portion 16b is formed for attaching the imaging unit 10, and includes the side wall portions 17a to 17d and the bottom wall portions 18 and 19 as shown in FIGS. An opening 20 is formed between these bottom walls 18 and 19. Protrusions 21a to 21c extending in the thickness direction of the reinforcing frame 16 from the upper surfaces 18a and 19a of the bottom walls 18 and 19 are formed in the recess 16b.
[0019]
As shown in FIGS. 6 to 8, the imaging unit 10 includes a lens unit 22, an imaging element 23, and a substrate 24 on which the lens unit 22 and the imaging element 23 are mounted.
As shown in FIGS. 6 and 8, the lens unit 22 is fixed to the surface 24a of the substrate 24, and includes a case 25 and a lens housed therein. This lens is for forming an image on the image sensor 23.
[0020]
The case 25 includes a cylindrical main body 26 having a bottom, an L-shaped holding wall (rib) 27 provided to protrude from one of the main bodies 26, and a block-shaped formed on the other side of the main body 26. And a holding wall (rib) 28. Grooves (concave stripes) 29 a to 29 c extending in the thickness direction of the substrate 24 are formed in the ends 27 a, 28 a, 28 b of the holding wall portions 27, 28 and the substrate 24, respectively.
In addition, the bottom surface 26a of the bottomed cylindrical main body 26 forms the upper end surface 22a of the lens unit 22 which is coplanar with the surfaces 27c and 28c of the holding walls 27 and 28.
[0021]
An opening 30 is formed in the bottom surface 26 a of the main body 26. Light from the outside enters the main body 26 through the opening 30, passes through the lens, and reaches the substrate 24 side.
The substrate 24 has an opening for transmitting light transmitted through the lens, and reaches the image sensor 23 mounted on the back surface 24b side of the substrate 24 as shown in FIG. The imaging device 23 is a so-called CCD (Charge-Coupled Device) that receives light from the outside and outputs an electric signal proportional to the brightness of the light.
[0022]
A connection terminal (insertion-side connection terminal) 32 is connected to the substrate 24 via a flexible printed wiring board 31. The flexible printed wiring board 31 extends upright in the thickness direction of the substrate 24. An upright portion 31a, a flat portion 31b extending from the upright portion 31a to the side of the substrate 24 in parallel with the back surface 24b of the substrate 24, and a protruding portion 31c protruding from the side of the flat portion 31b. I have.
[0023]
The connection terminal 32 is for electrically connecting to the connection terminal 15b of the control board 15, and is provided at an end of the protruding portion 31c. As shown in FIG. 8, the connection terminal 32 is attached with its attachment surface 31d facing the surface 24a of the substrate 24, and then the end of the protruding portion 31c is bent at the bent portion 31e. Thus, as shown in FIG. 7, the substrate 24 faces the back surface 24b of the substrate 24.
[0024]
In the imaging unit 10 configured in this manner, the substrate 24, the lens unit 22 mounted on the substrate 24, and the imaging element 23 face the back surface 24a of the substrate 24 to the bottom wall portions 18 and 19 of the recess 16b. In this state, as shown in FIG. 9, the lens unit 22 and the grooves 29a to 29c of the substrate 24 are inserted into the recesses 16b of the reinforcing frame 16 so as to engage with the ridges 21a to 21c, respectively. Has become. In this insertion state, the imaging unit 10 is prevented from moving in a direction orthogonal to the insertion direction.
[0025]
In this inserted state, the connection terminal 32 of the imaging unit 10 is fixed to the connection terminal 15b of the control board 15, and the control board 15 and the imaging unit 10 are electrically connected.
As described above, the imaging unit 10 is fixed to the reinforcing frame 16 and the display unit 8, the display unit cover 14, the control board 15, and the reinforcing frame 16 are integrally connected as shown in FIG. Thus, the housing built-in unit 51 is configured.
[0026]
The second housing 3 incorporating the housing built-in unit 51 is composed of a front case 41 and a rear case 42 divided in the thickness direction, and the front case 41 and the rear case 42 are open to each other. -Can be combined. The front case 41 has an opening 43 for exposing the display surface of the display unit 8 on the inner surface 11 side of the second housing 3, and the rear case 42 has the opening 30 of the imaging unit 10. An opening 44 for exposing to the outer surface 12 side of the second housing 3 is formed. A biasing member 45 made of rubber is provided on the inner surface 41 a side of the front case 41.
[0027]
In a state in which the front case 41 and the rear case 42 are connected to each other with the housing built-in unit 51 sandwiched therebetween, as shown in FIG. The upper end surface 22a of the lens unit 22 comes into contact with the inner surface 42a of the rear case 42 by being urged toward the rear case 42. This prevents the imaging unit 10 from moving in the thickness direction of the second housing 3.
A dustproof packing 46 is provided between the upper end surface 22a and the inner surface 42a so that dust does not enter the inside of the second housing 3 from outside. The opening 44 is provided with a transparent member 47 such as glass or acrylic for protecting the lens of the imaging unit 10.
[0028]
A method of fixing the imaging unit 10 inside the second housing 3 in the mobile phone 1 configured as described above will be described.
First, as shown in FIG. 9, with the back surface 24a side of the substrate 24 facing the bottom wall portions 18 and 19 of the concave portion 16b, the grooves 29a to 29c of the lens unit 22 and the substrate 24 are respectively formed with the ridge portions 21a. The substrate 24 and the lens unit 22 and the image sensor 23 mounted on the substrate 24 are inserted into the recesses 16b of the reinforcing frame 16 so as to engage with the components 21c. In this insertion state, the grooves 29a to 29c engage with the ridges 21a to 21c, respectively, so that the imaging unit 10 is prevented from moving in a direction perpendicular to the insertion direction.
At the same time as the insertion, the connection terminal 32 of the imaging unit 10 is fixed to the connection terminal 15b of the control board 15, and the control board 15 and the imaging unit 10 are electrically connected.
[0029]
Next, the front case 41 and the rear case 42 are connected to each other with the housing unit 51 sandwiched between the front case 41 and the rear case 42. At this time, as shown in FIG. 11, the urging member 45 urges the imaging element 23 projecting downward from the opening 20 toward the rear case 42, and the upper end surface 22 a of the lens unit 22 is It comes into contact with the inner surface 42a. This prevents the imaging unit 10 from moving in the thickness direction of the second housing 3. As described above, the imaging unit 10 is fixed inside the second housing 3.
[0030]
As described above, according to the mobile phone 1, since the imaging unit 10 is inserted into the recess 16a, the imaging unit 10 is prevented from moving in a direction orthogonal to the insertion direction. The urging force that the urging member 45 urges toward the rear case 42 can be used only to prevent the imaging unit 10 from moving in the thickness direction of the second housing 3. Therefore, it is not necessary to pinch the imaging unit 10 with an excessive force, and it is possible to easily achieve compatibility between the mounting of the imaging unit 10 inside the second housing 3 and ensuring the characteristics of the imaging unit 10.
[0031]
Further, by engaging the ridges 21 a to 21 c of the recess 16 a with the grooves 29 a to 29 c of the lens unit 22 and the substrate 24, the imaging unit 10 can move in the direction orthogonal to the thickness direction of the second housing 3. Can be easily prevented from moving.
Further, by providing the holding walls 27 and 28 on the surface 24a of the substrate 24, the rigidity of the substrate 24 is improved. Therefore, even when the imaging unit 10 is mounted in the recess 16b and the imaging unit 10 is urged toward the rear case 42 by the urging member 45, the distortion of the substrate 24 can be prevented. Characteristic can be more reliably maintained.
[0032]
Further, by forming the concave portion 16a for inserting the imaging unit 10 in the reinforcing frame 16, the structure of the front case 41 and the rear case 42 constituting the second housing 3 is simplified, and the manufacture of the portable terminal device 1 is simplified. It will be easier.
Further, since the reinforcing frame 16 is made of magnesium, high rigidity can be obtained, and deformation and damage of the imaging unit 10 can be prevented, and the imaging unit 10 is less likely to be charged.
[0033]
In the above-described embodiment, the biasing member 45 is provided on the inner surface 41 a of the front case 41. However, the present invention is not limited to this, and the imaging unit 10 may be disposed in the thickness direction of the second housing 3. It suffices if it urges the inner surface 41a of the front case 41 or the inner surface 42a of the rear case 42 toward it. Therefore, the biasing member may be provided on, for example, the bottom walls 18 and 19 of the recess 16b, or may be provided on the inner surface 42a of the rear case 42.
The biasing member 45 is made of rubber, but is not limited to this, and may be a coil spring.
[0034]
Further, the ridges 21a to 21c are provided in the recess 16b, and the grooves 29a to 29c are provided in the holding walls 27, 28. However, the present invention is not limited to this. Alternatively, a groove may be provided in the recess 16b to be provided in the recess 24b.
Further, the number of the ridges and the grooves is not limited to this, and it is sufficient that at least one or more ridges and the grooves that engage with the ridges are provided.
[0035]
Furthermore, the concave portion 16b for mounting the imaging unit 10 is formed in the reinforcing frame 16, but is not limited thereto. For example, the concave portion 16b may be formed on the inner surface of the front case 41 or the rear case 42.
The bottom surface 26a of the main body 26 and the surfaces 27c, 28c of the holding walls 27, 28 form the same plane. However, the present invention is not limited to this, and at least the surfaces 27c, 28c form the same plane. Just do it. Further, for example, the front surfaces 27c and 28c may be located higher than the bottom surface 26a of the main body 26 with respect to the front surface 24a of the substrate 24.
[0036]
Further, the holding walls 27 and 28 are provided on one side and the other side of the main body 26, respectively. However, the present invention is not limited to this. For example, the surface 24a of the substrate 24 is formed so as to surround the main body 26 of the case 25. May be provided on the entire end portion. The image pickup device 20 is a so-called CCD, but is not limited thereto. The image pickup device 20 receives light from a subject, converts the image into an electric signal, and converts the image into an electric signal. What is necessary is just to output to the storage device provided in the inside. Therefore, the imaging element 20 may be, for example, a CMOS.
[0037]
Furthermore, although the mobile phone is configured such that the two housings are foldably connected to each other, the present invention is not limited to this, and a mobile phone including one housing may be used. Further, the present invention is not limited to a mobile phone, but may be any mobile terminal device such as a simple mobile phone, a PDA (Personal Data Assistant), and a portable personal computer.
[0038]
As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes a design change or the like without departing from the gist of the present invention.
[0039]
【The invention's effect】
As described above, according to the first aspect of the invention, the force for sandwiching the imaging unit between the urging member and the other case is used only to prevent the imaging unit from moving in the thickness direction of the housing. It can be used and does not need to be pinched by excessive force. Therefore, it is possible to easily achieve compatibility between the mountability of the imaging unit inside the housing and the securing of characteristics of the imaging unit.
[0040]
According to the second aspect of the present invention, it is possible to easily prevent the imaging unit from moving in the direction orthogonal to the thickness direction of the housing by engaging the protrusions and the recesses. Can be.
[0041]
According to the third aspect of the present invention, the substrate is reinforced by the ribs, and the ribs are formed with the ridges or the ridges. Even when the case is urged by the urging member, distortion of the substrate can be prevented, and therefore, it is possible to more reliably maintain the characteristics of the imaging unit.
[0042]
According to the fourth aspect of the present invention, when inserting the imaging section into the recess, the insertion-side connection terminal is oriented in the same direction as the insertion direction of the imaging section, and the receiving section is provided inside the housing. Since the image pickup unit can be connected to the side connection terminal, it is easy to attach the imaging unit to the inside of the housing.
[0043]
Further, according to the fifth aspect of the present invention, by forming the recess for inserting the imaging unit in the reinforcing frame, the structure of the case is simplified, and the manufacture of the portable terminal device is facilitated.
[0044]
According to the sixth aspect of the present invention, since the reinforcing frame is formed of magnesium, high rigidity is obtained, and deformation and damage of the imaging unit can be prevented, and the imaging unit is hardly charged. There are benefits.
[Brief description of the drawings]
FIG. 1 is a plan view showing a state in which a first housing and a second housing are mutually opened in a mobile terminal device according to an embodiment of the present invention.
FIG. 2 is a plan view showing a state in which a first housing and a second housing are mutually opened in the portable terminal device of FIG. 1;
FIG. 3 is an exploded perspective view showing a state in which a housing built-in unit provided inside a second housing is disassembled in the portable terminal device of FIG.
FIG. 4 is a plan view showing a state before an imaging unit is inserted into a recess in the portable terminal device of FIG. 1;
FIG. 5 is a sectional view taken along the line AA of FIG. 4;
FIG. 6 is an enlarged perspective view showing an imaging unit in the portable terminal device of FIG.
FIG. 7 is an enlarged perspective view showing an imaging unit in the portable terminal device of FIG.
FIG. 8 is an enlarged perspective view showing an imaging unit in the portable terminal device of FIG.
9 is a plan view showing a state after an imaging unit is inserted into a concave portion in the portable terminal device of FIG.
FIG. 10 is a perspective view showing a state before the housing built-in unit provided inside the second housing is sandwiched between the front case and the rear case in the portable terminal device of FIG. 1;
FIG. 11 is an enlarged cross-sectional view showing a state in which the imaging unit is fixed inside the second housing in the portable terminal device of FIG.
[Explanation of symbols]
1 Mobile phone (mobile terminal device)
2 First housing 3 Second housing (housing)
10 imaging unit 15b connection terminal (receiving side connection terminal)
16 Reinforcement frame 16b Recesses 21a to 21c Ridge 22 Lens unit 23 Image sensor 24 Substrates 27, 28 Holding wall (rib)
29a-29c groove (concave stripe)
32 connection terminal (insertion side connection terminal)
41 front case 42 rear case 45 biasing member

Claims (6)

A casing that is divided in the thickness direction and includes a pair of cases that can be opened and coupled to each other in the thickness direction;
An image sensor, a lens unit that forms an image of a subject on the image sensor, and an image pickup unit including a substrate on which the image sensor and the lens unit are mounted are provided inside the housing.
A recess is formed inside the housing to allow the imaging unit to be freely inserted from the thickness direction, and to prevent movement of the inserted imaging unit in a direction perpendicular to the thickness direction,
Further, an urging member is provided between one of the concave portion and the pair of cases and the imaging unit to urge the imaging unit toward the other case and to fix the imaging unit. A portable terminal device characterized in that: A ridge extending in the thickness direction is formed on one of the concave portion and the imaging unit, and a ridge that can be engaged with the ridge is formed on the other. The mobile terminal device according to claim 1, wherein: The mobile terminal device according to claim 2, wherein a rib is provided on the substrate, and the rib or the ridge is formed on the rib. The imaging unit is provided with an electrical insertion-side connection terminal having a connector on a front surface in the insertion direction,
4. The housing according to claim 1, wherein a receiving-side connection terminal connectable to an insertion-side connection terminal of the imaging unit is provided inside the housing toward a rear side in the insertion direction. 5. The mobile terminal device according to any one of the above. 2. The frame according to claim 1, further comprising a reinforcing frame provided inside the housing to reinforce the rigidity of the housing and detachable from the case, and the concave portion being formed in the reinforcing frame. The portable terminal device according to any one of claims 1 to 4. The mobile terminal device according to claim 5, wherein the reinforcing frame is made of magnesium.

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