JP2003114180A - Portable terminal device and method of detecting shock of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal device which can obtain a shock value even when the terminal device cannot fulfill all functions due to a shock acting on a mainframe case and to provide a method of detecting the shock of the terminal device. SOLUTION: The portable terminal device is provided with a shock detection part 9 which can detect an applied shock value when it is broken due to the shock at a definite value or more. The part 9 is constituted in such a way that a plurality of shock detection parts broken by different shock values are arranged and installed, and it is provided with a control part 8 which specifies the range of the applied shock value by confirming the existence of the break of the part 9 due to the shock.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal device and a shock detection method for detecting a shock caused by a fall of a main body of a mobile communication terminal or a mobile phone.

[0002]

2. Description of the Related Art In recent years, the number of mobile terminal devices such as mobile phones has been rapidly increasing, and the number of failures of these mobile terminal devices is also increasing. On the other hand, as the size and weight of this mobile terminal device have become smaller and smaller, users often inadvertently drop it from the bag, pocket, etc. in which it is stored. The shock is increasing.

Usually, a drop impact that does not exceed a certain limit rarely causes a failure. Therefore, as an agreement in the explanation of handling, if the user gives a shock exceeding a limit that may lead to a failure, the manufacturer is not responsible for it, and it is the responsibility of the user.

However, in reality, it is difficult to obtain evidence that a shock is applied by dropping the main body of the portable terminal device. For this reason, when the user says that it is a failure, there is no choice but to check the surface of the case of the mobile terminal device for scratches, cracks, etc., and it is not possible to determine whether it is due to a drop impact or another cause. It was

Therefore, as a conventional impact detection method for a portable terminal device, a method disclosed in Japanese Patent Laid-Open No. 35680/1993 has been proposed. This portable input / output device with a shock detection function has a built-in shock sensor to notify the user of the shock by issuing an alarm,
It is stored in the memory.

[0006]

However, in the conventional portable terminal device, even if the function of detecting the impact due to a drop is added, if all the functions of the device body are broken by the impact due to the drop, the display unit There was a problem that it was not possible to display that there was a shock in the memory or to store it in the memory.

In view of the above-mentioned circumstances, the present invention provides a portable terminal device capable of obtaining an impact value even if it is impossible to fulfill all the functions of the device main body due to the impact acting on the main body case. It is an object of the present invention to provide an impact detection method.

[0008]

SUMMARY OF THE INVENTION The present invention is a portable terminal device having a shock detecting means for detecting an applied shock value by breaking by a shock of a certain value or more, wherein the shock detecting means is , A plurality of pieces that break at different impact values, and these are orthogonal to each other on the X-axis and Y-axis.
The shock absorbers are arranged along the axes of the three axes, the Z axis and the Z axis, respectively. By checking the presence or absence of breakage of the impact detecting means in each direction, the range of the impact value applied by the impact and the impact applied It is characterized in that a control means for detecting the direction is provided.

As a result, even if the main body of the apparatus fails and cannot perform its function, it is possible to obtain the received shock value and the direction of the shock depending on the broken state of the shock detecting means.

Further, in the present invention, each of the impact detecting means is configured to detect when the impact detecting means breaks itself due to an impact caused by the dropping of the main body case of the portable terminal device. Rupture detection means,
It is preferable to include storage means for storing the break information from the break detection means and display means for displaying the break information from the break detection means.

As a result, if the shock received by the main body case of the portable terminal device is not fatal and if it is a partial failure, any function of the breakage detection means, the storage means, the display means, etc. will work. The magnitude and direction of the impact can be displayed on the display unit, and the information stored in the storage unit can be confirmed.

Further, in the present invention, each of the impact detecting means is a plurality of cantilever beams having one end fixed and different lengths, and the other end is fixed with a weight having an equal weight for receiving an impact force. Is preferred.

Thus, the impact can be detected with a simple structure in which a weight having the same weight as the cantilever is fixed.

Further, in the present invention, it is preferable that each of the shock detecting means is a beam having the same length with both ends fixed, and a weight having a different weight for receiving a shock force is fixed to the center thereof.

Thus, the impact can be detected with a simple structure in which the weights are fixed by the support beams having the same length.

Further, the present invention is a shock detecting method in a portable terminal device equipped with the shock detecting means according to any one of the above for detecting an applied shock value, wherein the shock detecting means is broken by a shock. A shock detecting step for detecting a shock, a break detecting step for detecting that the shock detecting means has broken, a storing step for storing break information of the shock detecting means, and a break information for the shock detecting means are displayed. And a display step.

As a result, the magnitude of the shock received by the device can be retrieved from the memory or displayed.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. [First Embodiment] FIG. 1 and FIG. 2 show a mobile phone to which the mobile terminal device of the present invention is applied. A free antenna 1, a receiving speaker 2 provided on the operation surface 10A side which is the surface of the main body case 10, a transmitting microphone 3, a key operation unit 4, and a display 5.
In addition to the wireless communication unit 6, the memory 7, the control unit 8 and the like provided inside the main body case 10, an impact detection unit 9 is provided.

Among them, the key operation unit 4 is provided with a ten-key pad 41 for inputting a telephone number, a sentence, etc., a power source ON / OFF,
It has a function key 42 for operating a call start, a call end, etc., and as shown in FIG. 2, its output is connected to the input of the control unit 8. Then, when the telephone number or the character information is input by the key operation unit 4, a control signal for operating or controlling the transmission / reception and other functions is output via the control unit 8. ing.

The display 5 is adapted to display received information such as the telephone number, mail, text and the like of the other party, and its input is connected to the output of a display control unit 81, which will be described later, on the control unit 8 side.

The wireless communication section 6 is adapted to carry out transmission and reception processing of wireless communication signals, and is connected to the control section 8. For example, the radio wave received by the antenna 1 is demodulated by the wireless communication unit 6 and the demodulated data is output to the control unit 8.

The control section 8 has an MPU for controlling each section and signal processing, and has a breakage detection section 81 and a display control section 82. The breakage detector 81 has an input connected to the output of the impact detector 9 and an output connected to the input of the display controller 82. On the other hand, the breakage detection unit 8
The display control unit 82, whose input is connected to the output of 1, has its output connected to the display 5.

In addition, in the control unit 8, the reception information relating to the call is converted into a voice signal and the voice signal is output from the receiving speaker 2 as a voice, and the voice of the user received by the transmission microphone 3 is converted into an electric signal. The converted signal is output to the control unit 8, modulated by the wireless communication unit 6, and then wirelessly transmitted from the antenna 1 to the other party.

The breakage detection unit 81 detects the breakage of the shock detection unit 9 when a shock is applied by dropping the main body case 10 of the mobile phone, and outputs the breakage information to the display control unit 82. Then, the received impact information is displayed on the display 5. The breakage detection unit 81 is also adapted to store breakage information in the memory 7 at the same time.

The memory 7 is a ROM for storing information.
And RAM and the like, and is connected to the control unit 8. The memory 7 stores a control program and other information such as a telephone number, and the necessary information is read and written under the control of the control unit 8.

Next, the mechanical structure of the impact detector 9 of the mobile phone according to the first embodiment will be described with reference to FIGS. Note that FIG. 7 shows a state in which an impact force acts on the impact detection unit 9 in FIG. In FIG. 3, the impact detector 9 is a wall surface 10B inside the main body case 10.
In this configuration, a weight 92 that receives an inertial force due to an impact is fixed via a holding section 90 and a cantilever 91 provided in the above, and three sets of impact detection sections 9A to 9C are provided.

Cantilever beam 9 of each impact detector 9A-9C
1A to 91C are parallel to each other and have different lengths, and are made of a brittle material having a large electric resistance value such as glass or ceramic mixed with conductive flakes. Further, each of the cantilevers 91A to 91C is formed of a uniform material so that local destruction does not occur.

The weights 92A to 92C are made of the same material having a large specific gravity and have the same weight. Since they have the same weight, they are cantilevers 91A to 91C when they receive an impact.
Breaks depending on the magnitude of the impact depending on the length of the. The cross-sectional shapes of the cantilevers 91A to 91C are circular so that the cantilevers 91A to 91C are less likely to be affected by the impact direction.
This makes it possible to detect impacts of the cantilevers 91A to 91C in all directions other than the longitudinal direction.

As shown in FIGS. 5 to 7, recesses 911A are formed on the fixed end faces of the cantilevers 91A to 91C, respectively.
To 911C (only the concave portion 911A is shown) are formed, and the holding portion 90 for fixing the concave portion 911A to 911C has a protrusion 901A fitted to the holding portion 90 that fixes the concave portion 911A to 911C. ~ 901
C (however, only the protrusion 901A is shown) is formed.

Further, the holding portion 90 and the cantilever 91A.
~ 91C are integrally fixed with a conductive adhesive 903, but from each of the cantilevers 91A to 91C, as shown in FIG.
As shown in FIG. 5, the breakage detection unit 81 is electrically connected to the breakage detection unit 81 via wirings 93A to 93C drawn out from a pair of insulated contacts, and the breakage detection unit 81 is a cantilever beam 91A to 91C. The electric resistance value of is monitored.

In this embodiment, the contact points of each pair are insulated from each other. However, in this insulated state, the projection portion, which is the fitting portion between the holding portion 90 and the cantilever beams 91A to 91C. It is realized by not applying (interposing) the conductive adhesive 903 to the portions 901A to 901C and the concave portions 911A to 911C.

Therefore, the cantilevers 91A to 91A are caused by the impact.
When the fixed end of C breaks as shown in FIG. 7, the contacts 902A-9 of the fixed ends of the cantilevers 91A-91C that break.
There is a disconnection state between 02C and the breakage detection unit 81. Further, it is also possible to detect where the breakage occurs first by the fastest increase in the electrical resistance value between the cantilever beams 91A to 91C that break the fastest. The breakage detection unit 81 stores the breakage information in the memory 7 and instructs the display control unit 82 to display the breakage information. Accordingly, the display control unit 82 can display the break information on the display 5.

Next, the function and operation of the impact detecting section 9 and the breakage detecting section 81 having the above-mentioned configurations will be described. It is assumed that, for example, when the operator drops the mobile phone, an inertial force acts on the weight 92 of the shock detection unit 9 due to a shock, and at least one of the cantilevers 91A to 91C is broken. The three cantilever beams 91A to 91C are set to break at different impact values A, B, and C (A <B <C), and are configured to break in order from the smallest value. There is. In the present embodiment, the three cantilever beams 91A to 91C have the same cross-sectional area and the lengths thereof are changed, so that the impact value at break is changed.

(1) When only one piece is broken, the cantilever beam 91A having a small impact value is broken. At this time, the shock value X received by the body case 10 of the mobile phone is in the range of A <X <B. (2) On the other hand, 2 of cantilever 91A and cantilever 91B
When only the book breaks, the impact value X is in the range of B <X <C. (3) When all three cantilevers are broken, the impact value X is C <X.

The operation of this embodiment will be described below with reference to FIG.
A description will be given according to the flowchart shown in FIG. (1) The breakage detection unit 81 constantly checks the breakage of the impact detection unit 9 (first step S51). (2) Impact is applied here, and cantilever beams 91A to 91C.
Check if any of the breaks. For example, if it is determined here that the cantilever beam 91C is broken, the third
Go to step. On the other hand, when it is determined that the cantilever beam 91C is not broken, the process proceeds to the fourth step (second
Step S52).

(3) In the third step, the breakage detecting section 81 determines that the impact value X is at least X> C (third step S53). (4) Next, in a fourth step, the presence or absence of breakage of the cantilever beam 91B is checked. When it is determined that the cantilever beam 91B is broken, the process proceeds to the fifth step.
On the other hand, when the cantilever beam 91B is not broken, the process proceeds to the sixth step S56 (fourth step S54).

(5) In the fifth step, the fracture detecting section 81
Thus, it is finally determined that the shock value X is B <X <C (fifth step S55). (6) On the other hand, in the sixth step, the presence or absence of breakage of the cantilever beam 91A is checked. When it is determined that the cantilever beam 91A is broken, the process proceeds to the seventh step S57. On the other hand, if the cantilever beam 91A is not broken, the process proceeds to the eighth step S58 (sixth step S56).

(7) In this seventh step S57, since the cantilever beam 91A is broken, its impact value X is A <
It is finally determined that X <B (seventh step S57). (8) On the other hand, in the eighth step S58, the cantilever beam 91A
Since it is not broken, it is finally determined that the impact value X is X <A (eighth step S58).

(9) Next, the breaking information is stored in the memory 7 connected to the control unit 8. (9th Step S5
9). (10) Furthermore, the breakage detection unit 81 outputs the breakage information to the display control unit 82 (10th step S60). (11) Then, it is displayed on the display 5 such as an LCD that the mobile phone body has been impacted (11th step S61). When the display 5 fails to function due to a shock, the shock history stored in the memory 7 can be directly read to retrieve the history of the shock received by the body case 10 of the mobile phone. .

In the mobile phone of this embodiment, when the impact detection unit 9 is completely broken down, the number of broken cantilever beams 91A to 91C of the impact detection unit 9 is confirmed so that the impact detection unit 9 is dropped. The range of impact values can be specified. Although the impact detection value at the time of breaking can be appropriately changed by changing the lengths of the cantilevers 91A to 91C, as shown in FIG.
~ 94C) have the same length, and the weight 95 (95A to 95C)
C) may have different weights.

Although the cantilever beams 91A to 91C and the like are used as the impact detector 9 in this embodiment, the impact detector 9 is not limited to this. For example, as shown in FIG. 10, as the impact detection unit 9 composed of a plurality of sets, both-end support beams 98 (98A to 98) held by a holding unit 96 and having different lengths, respectively.
C) and the weights 99 (99A to 99C) of equal weight provided in the intermediate portion of the both ends supporting beams 98 (98A to 98C).
You may comprise by C) and.

In the impact detecting section 9 of FIG. 10, the wiring 97 is drawn out from the contact points 961 and 962 provided at both ends of the both-end supporting beams 98 (98A to 98C) to the breakage detecting section 81. It is connected.

Further, as shown in FIG. 11, as a plurality of sets of impact detectors 9, both-end support beams 101 of equal length held by a holder 100 and weights 102 having different weights are held.
It may be configured by and. Alternatively, the cross-sectional shape of the beam may be rectangular, and the direction of impact may be limited to be detected.

As described above, according to this embodiment, a plurality of impact detectors 9 that break at different impact values are provided.
By confirming whether or not the shock detector 9 is broken due to a shock, the range of the applied shock value can be specified.

[Second Embodiment] Next, the second embodiment of the present invention will be described.
Embodiments will be described with reference to FIGS. 12 and 13. In this embodiment, the same parts as those in the first embodiment are designated by the same reference numerals to avoid redundant description.
The mobile phone according to this embodiment is different from the mobile phone according to the first embodiment in that the impact detection unit 21 has a three-dimensional structure.

The impact detector 12 has one end fixed to the holder 13 and extends in the X, Y, and Z directions orthogonal to each other, and has three cantilevers 14A to 14C which can be broken by an impact.
And the weights 15A to 15C fixed to the free ends of the cantilevers 14A to 14C.

Each of the cantilevers 14A to 14C has a high electric resistance value and is made of a brittle material, and the critical impact value is set so that the cantilever beams 14A to 14C break at different impact magnitudes depending on the length of the beam. The settings are configured so that they can be easily adjusted. In addition, each cantilever 14A-1 of this embodiment is used.
The length of 4C is set so that the cantilever beams 14A to 14C are broken at the limit impact value that the body case of the mobile phone can withstand.

Further, the cantilevers 14A to 1 of this embodiment are used.
4C is formed to have a rectangular cross section, and is configured to bend only in the directions indicated by A, B, and C in FIG. 12, respectively. That is, the cantilever 14A is only in the XY plane direction, and the cantilever 14B is only in the YZ plane direction.
4C can be bent only in the ZX plane direction,
That is, it is configured so that it can be broken.

Incidentally, in the cantilever beams 14A to 14C,
In order to impart flexibility only in a specific direction, for example, the cantilever beams 14A to 14C are sandwiched by a guide plate formed of a rigid body along both surfaces parallel to the flexibility allowable direction. With the configuration, the displacement may be allowed only along the guide plate.

On the other hand, the weights 15A to 15C have the same weight. Also, each cantilever 1
4A to 14C are connected to the holding portion 13 through contact points (not shown) and wirings 16 provided between the cantilever beams 14A to 14C and the holding portion 13, respectively, and the breakage detecting portion 8 is provided.
1 is electrically connected.

Next, the impact detector 12 and the breakage detector 81
The operation of will be described. It is assumed that the user drops the mobile phone from the X direction. In this case, an inertial force acts on each of the weights 15B and 15C on the cantilever beams 14B and 14C arranged on the axes of the Y-axis and Z-axis directions.

However, among them, the cantilever beam 14B is constructed so as to be bent only in the YZ plane direction as described above, and in this case, since it is not affected by the force in the X direction that falls, it breaks. Never.

On the other hand, since the cantilever 14C is constructed so as to bend only in the YZ plane direction, it is affected by the force in the X direction which is the inertial force when it falls. And
When the impact force in this direction exceeds the limit impact value, the cantilever 14C is broken.

If the impact force in that direction exceeds the limit impact value when dropped in the Y direction, the cantilever 1
4A will be broken. Similarly, when dropped in the Z direction, if the impact force in that direction exceeds the limit impact value, the cantilever beam 14B will break.

Next, the operation of this embodiment will be described with reference to FIG.
A description will be given along the flowchart shown in FIG. (1) The breakage detection unit 81 constantly checks the breakage of the impact detection unit 12 (first step S101). (2) Here, a shock is applied to the cantilever beams 14A to 14C.
Check if any of the breaks. For example, if it is determined here that the cantilever 14A is broken, the third
Control goes to step S103. On the other hand, if it is determined that the holding beam 14A has not been broken, the fourth step S104
The process proceeds to (second step S102).

(3) Then, in the third step, the fracture detecting section 81 determines that the impact direction includes the Y direction (third step S103). (4) On the other hand, in the fourth step, the presence or absence of breakage of the cantilever 14B is checked. When it is determined that the cantilever 14B is broken, the fifth step S105
Move to. On the other hand, when it is determined that the cantilever 14B is not broken, the process proceeds to the sixth step S106 (fourth step S104).

(5) In the fifth step, the breakage detector 81
Thus, it is determined that the impact direction includes the Z direction (fifth step S105). (6) In the sixth step, the presence or absence of breakage of the cantilever 14C is checked. Then, when it is determined that the cantilever 14C is broken, the process proceeds to the seventh step S107. On the other hand, when it is determined that the cantilever 14C is not broken, the process proceeds to the eighth step S108 (sixth step S106).

(7) In this seventh step S107, since the cantilever 14C is broken, the impact direction is
It is determined that the X direction was included (7th
Step S107). (8) On the other hand, in the eighth step S108, the cantilever 14
Since C also did not break, it is finally determined that the impact direction in this case could not be detected. Also,
At the same time, in the impact in this case, it is determined that the impact values in all the X, Y, and Z directions are less than or equal to the limit impact value (eighth step S108).

(9) Next, the breaking information is stored in the memory 7 (see FIG. 2) connected to the control unit 8. (9th step S109). (10) Furthermore, the breakage detection unit 81 outputs the breakage information to the display control unit 82 (see FIG. 2) (tenth step S110).

(11) Then, the fact that the main body case 10 of the mobile phone is shocked is displayed on the display 5 such as an LCD.
(See FIGS. 1 and 2) (11th step S11)
1). Further, when the display 5 fails to function due to a shock, the shock information stored in the memory 7 is directly read out, so that the main body case 10 of the mobile phone can be read.
It is possible to extract the history of the impact received by (see FIG. 1).

Even in the mobile phone of this embodiment, when the impact detection unit 12 is completely broken down, the number of the broken cantilever beams 14A to 14C of the impact detection unit 12 is confirmed, so that it can be dropped. The impact direction can be specified. Further, as described above, by changing the length of the cantilevers 14A to 14C, or by changing the weight of the weight, the breaking limit value at the time of impact may be appropriately changed and adjusted. Good.

The impact detecting section 12 may be composed of a plurality of fracture limit values which are different from each other in order to detect the impact force in each direction in detail.
For example, for each of the X, Y, and Z directions, FIG.
, The cantilevers 94 have the same length, and the weight 9
You may comprise from 3 types which made 5 different weights.

Alternatively, in each of the X, Y, and Z directions, as shown in FIG. 10, it is composed of three types of support beams 98 having different lengths and weights 99 having the same weight. You may. Further, in each of the X, Y, and Z directions, as shown in FIG. 11, both end support beams 101 having the same length and weights 102 having different weights are used.
You may comprise with a thing of a kind.

Further, the cross-sectional shape of the beam may be circular, and the direction of impact may be the entire circumferential direction. When the cross-sectional shape of this beam is circular, for example, when the user drops the mobile phone in the X-axis direction, the cantilever beams 14B and 14C arranged along the axes of the Y-axis and Z-axis directions. An inertial force acts on each of the weights 15B and 15C. If the impact at the time of this drop is equal to or greater than the limit impact value, both the cantilevers 14B and 14C are broken.

Similarly, when the user drops the mobile phone in the Y-axis direction, inertial forces are applied to the weights 15A and 15C of the cantilever beams 14A and 14C arranged along the X-axis and Z-axis directions, respectively. To work. If the impact at the time of this drop is equal to or greater than the limit impact value, both the cantilevers 14A and 14C are broken. Similarly, when the user drops the mobile phone in the Z-axis direction, both the cantilevers 14A and 14B are broken if the impact at the time of this drop is equal to or greater than the limit impact value.

Further, when the user drops the mobile phone in the intermediate direction between the X-axis and Y-axis directions, the impact at the time of this drop is at least [2] ^1/2 times the limit impact value. Since the cantilever beams 14A and 14B act only on the 45-degree component of the impact force, the cantilever beams 14C and 14C do not break.
Only breaks.

Similarly, when the mobile phone is dropped in the intermediate direction between the Y-axis and Z-axis directions, if the impact at the time of this drop is up to [2] ^1/2 times the critical impact value, it is cantilevered. Beam 14A
Only breaks. Furthermore, when the mobile phone is dropped in the intermediate direction between the X-axis and Z-axis directions, if the impact at the time of this drop is up to [2] ^1/2 times the critical impact value, the cantilever 1
Only 4B breaks.

As described above, according to this embodiment, when the portable radio device breaks down, the impact detection section 12 detects which cantilever beam is broken.
It becomes possible to specify the direction of impact when dropped.

[0069]

As described above, the present invention is
What is claimed is: 1. A mobile terminal device comprising a shock detecting means capable of detecting an applied shock value by breaking due to a shock of a certain value or more, wherein the shock detecting means comprises a plurality of pieces that break at different shock values. In addition, the control means is provided for identifying the range of the impact value applied by the impact by confirming the presence or absence of breakage of each impact detection means.

Therefore, according to the present invention, since the impact value can be detected specifically, even if the portable terminal device is damaged or damaged due to the impact at that time, the user drops it to cause a failure. Since it is possible for the manufacturer or the like to confirm later from the impact value whether or not it is a failure due to a drop, it is possible for the manufacturer to easily confirm whether or not it should be guaranteed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a mobile phone according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing an electrical configuration of the mobile phone according to the first embodiment.

FIG. 3 is a schematic configuration diagram showing an impact detection unit of the mobile phone according to the first embodiment.

FIG. 4 is an explanatory diagram showing an electrical configuration of an impact detection unit of the mobile phone according to the first embodiment.

FIG. 5 is an explanatory diagram showing a main part of an impact detection unit of the mobile phone according to the first embodiment.

FIG. 6 is a perspective view of a main part showing a holding unit of an impact detection unit of the mobile phone according to the first embodiment.

FIG. 7 is an explanatory diagram showing a state when the impact detection unit of the mobile phone according to the first embodiment is broken.

FIG. 8 is a flowchart showing an operation of the mobile phone according to the first embodiment.

FIG. 9 is an explanatory diagram showing a modified example of the impact detection unit of the mobile phone according to the first embodiment.

FIG. 10 is an explanatory diagram showing still another modified example of the impact detection unit of the mobile phone according to the first embodiment.

FIG. 11 is an explanatory diagram showing still another modified example of the impact detection unit of the mobile phone according to the first embodiment.

FIG. 12 is a schematic configuration diagram showing an impact detection unit of a mobile phone according to a second embodiment of the present invention.

FIG. 13 is a flowchart showing an operation of the mobile phone according to the second embodiment.

[Explanation of symbols]

1 antenna 2 earpiece speaker 3 Talking microphone 4 key operation part 5 display 6 Wireless communication section 7 memory 8 control unit 81 Display control unit 82 Display control unit 9 Impact detector 90 Hold 901 protrusion 902 contacts 903 conductive adhesive 91 cantilever 92 Weight 93 wiring 94 cantilever 95 weight 96 holding part 961 contact 962 contacts 97 wiring 98 both ends support beam 99 weight 100 holding part 101 both ends support beam 102 weight 10 body case 12 Impact detector 13 Holder 14 cantilever 15 weights 16 wiring

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04M 1/725 G01P 15/00 C (72) Inventor Akitoshi Mori 4-3 Tsunashima-higashi, Kohoku-ku, Yokohama-shi, Kanagawa No. 1 F term in Matsushita Communication Industrial Co., Ltd. (reference) 2G061 AA07 AB01 BA04 CA20 CB03 DA01 EB03 5K023 AA07 BB21 BB23 HH04 HH07 MM00 MM25 5K027 AA11 BB04 EE11 FF12 FF22 MM04

Claims (5)

[Claims] 1. A mobile terminal device comprising a shock detecting means for detecting an applied shock value by breaking by a shock of a certain value or more, wherein the shock detecting means breaks at different shock values. X-axis composed of a plurality of things, which are orthogonal to each other,
They are arranged along the axes of the Y-axis and the Z-axis in three directions, respectively. By checking the presence or absence of breakage of the impact detection means in each direction, the range of the impact value applied by the impact and the applied impact A mobile terminal device comprising control means for detecting the direction of the mobile terminal. 2. Each of the shock detecting means is configured to detect itself by being broken by a shock caused by a drop of the main body case of the portable terminal device, and detect that the shock detecting means is broken. The mobile terminal according to claim 1, further comprising: a breakage detection unit, a storage unit that stores breakage information from the breakage detection unit, and a display unit that displays the breakage information from the breakage detection unit. apparatus. 3. The impact detection means is a plurality of cantilever beams having one end fixed and different lengths, and a weight having the same weight for receiving an impact force is fixed to the other end. The mobile terminal device according to claim 1. 4. The impact detection means is a beam having the same length with both ends fixed, and a weight having a different weight for receiving an impact force is fixed to the center thereof.
The mobile terminal device according to. 5. The method according to claim 1, wherein the applied impact value is detected.
5. A shock detection method in a mobile terminal device comprising the shock detection means according to any one of 4, wherein a shock detection step detects a shock when the shock detection means breaks due to a shock, and the shock detection means. A shock detecting method comprising: a break detecting step for detecting that the shock has broken; a storing step for storing break information of the shock detecting means; and a display step for displaying break information of the shock detecting means.