JP4869185B2 - Mobile terminal device - Google Patents

Description

  The present invention relates to a mobile terminal device such as a mobile phone and a PDA (Personal Digital Assistant) configured by connecting two housings in a rotatable manner.

  Conventionally, as a mobile terminal device in which two casings are connected by a connecting means so as to be openable and closable, for example, as shown in a mobile phone shown in Patent Document 1, two casings can be arranged to overlap each other. Some of them are rotatable with respect to each other about a reference axis along the body overlapping direction.

  In a state in which the two casings are overlapped, an operation unit including a plurality of pressable operation keys is provided on the surface of the other casing that is covered with one casing. In addition, a display portion is provided on the surface of the one casing facing in the same direction as this surface, and this display portion is always exposed to the outside regardless of the open / closed state of the two casings. ing.

When the portable terminal device having such a configuration is carried in a bag or a pocket of clothes, the two casings are overlapped with each other and closed. In this state, in consideration of minimizing the occupied volume of the mobile terminal device, the two housings are in contact with each other without any gap.
JP-A-7-288860

  However, in the above-described conventional mobile terminal device, the two casings are in contact with each other with the two casings closed, and therefore, when the two casings are opened and closed with respect to each other about the reference axis, There is a problem that two casings rub against each other, and an operation unit provided on the other casing is damaged by the one casing.

  In addition, since the two housings are connected to each other so as to be rotatable around the reference axis, for example, when the external force is applied from the side surface of the housing when being accommodated in a bag or pocket, the user's intention is On the contrary, there are cases where the two housings open to each other, and if an external force is further applied in this state, there is a possibility that stress is generated around the connecting means and is damaged.

  The present invention has been made in view of the above-mentioned circumstances, and suppresses the two housings from rubbing when the two housings are opened and closed, thereby protecting the operation unit and carrying the same. An object of the present invention is to provide a portable terminal device that can prevent two casings from being opened unexpectedly.

  In order to solve the above problems, the present invention proposes the following means.

The mobile terminal device includes two housings that can be overlapped in the thickness direction, one housing and the other housing in an open state and a closed state with a first reference axis extending in the thickness direction as a center. A connecting portion that rotatably connects between the first housing, a recess formed on a facing surface of the one housing that faces the other housing in the closed state, and the one housing in the closed state. It is provided on the opposite surface of the other casing opposite to be inserted into the recess in the closed state, and at least a part of the side wall on the rotation direction side from the closed state to the open state is a side wall of the recess possess at least a portion substantially in contact with projections, of the recess, the side wall portion in the rotation direction from the closed state to the open state, the opposing surface of the one housing from a bottom wall of the recess An inclined surface that gradually expands toward the Through holes are formed in the interior of the through hole in the one housing, a microphone or speaker is provided, characterized in that.

  Moreover, it is preferable that the said connection part has a guide means to gradually space apart said one housing | casing and said other housing | casing in the said thickness direction in response to rotation from the said closed state to the said open state. .

  Further, the facing surface of the one housing and the facing surface of the other housing each have a substantially rectangular shape, and the connecting portion includes one end of the one housing and one end of the other housing. And urging means for urging the other end portion of the one casing and the other end portion of the other casing close to each other, and the recess is the one casing Preferably, the protrusion is provided at the other end of the other casing.

  Further, the facing surface of the one housing and the facing surface of the other housing each have a substantially rectangular shape, and the connecting portion includes one end of the one housing and one end of the other housing. And a biasing means for biasing the other end of the one casing and the other end of the other casing toward each other, and a rotation from the closed state to the open state. In conjunction with the movement, the other end of the one casing and the other end of the other casing are gradually separated in the thickness direction against the biasing force of the biasing means, and Interlocking with the rotation from the open state to the closed state, the guide means for bringing the other end of the one casing and the other end of the other casing close to each other in the thickness direction, Preferably, the recess is formed at the other end of the one casing, and the protrusion is provided at the other end of the other casing.

  In addition, it is preferable to include an operation unit provided on the facing surface of the one housing and a display unit provided on the outer surface opposite to the facing surface of the other housing.

  Moreover, it is preferable that the said protrusion part consists of elastic bodies.

According to the present invention, Oite the two housings in the closed state together, hold the two housings in relatively accurate position, an external force in a direction to rotate the two housings are also act The two housings can be prevented from opening unexpectedly.

Further, according to the present invention, the two housings when Ru is rotated to each other from a closed state to an open state, the opposing surface of one of the housing, rubbed by projections provided on the other housing it being damaged Te can be suppressed.

  1 to 5 show a first embodiment according to the present invention, and the embodiment described here is a case where the present invention is applied to a mobile phone. As shown in FIGS. 1 and 2, the cellular phone (mobile terminal device) 1 according to this embodiment includes a first casing 2 and a first casing 2 that can be overlapped in the thickness direction of the first casing 2. 2 housings 3 and connecting means 5 for connecting the two housings 2 and 3 so as to be rotatable around a first axis (first reference axis) L1 extending in the thickness direction. ing. The connecting means 5 is arranged so as to connect the end portions (one end portions) 2c, 3c (hereinafter referred to as the base end portions 2c, 3c) of the two casings 2, 3. Further, in a state where the two casings 2 and 3 are overlapped with each other, the facing surfaces 2a and 3d of the opposing casings 2 and 3 are both formed in a substantially rectangular shape.

  On the surface 2a facing the second casing 3 that is substantially orthogonal to the thickness direction of the first casing 2, there is provided an operation section 7 that includes various pressable operation keys such as a call key and an end key. The operation unit 7 is covered with the second casing 3 in a state where the first and second casings 2 and 3 are overlapped and closed. In addition, a microphone portion 9 is provided at the distal end portion (the other end portion) 2b of the first casing 2 located on the opposite side of the base end portion 2c in the facing surface 2a, and a concave portion that is recessed in the thickness direction. 10 is formed.

  A display unit 11 for displaying various types of information is provided on the outer surface 3a of the second housing 3 that faces in substantially the same direction as the facing surface 2a of the first housing 2. Regardless of whether the two casings 2 and 3 are opened or closed, they are exposed to the outside. In addition, a speaker portion 13 is provided on the distal end portion (other end portion) 3b of the second casing 3 located on the opposite side of the base end portion 3c in the outer surface 3a.

  Further, as shown in FIG. 3A, a protrusion 15 protruding from the facing surface 3d of the second housing 3 located on the opposite side of the outer surface 3a is affixed to the tip portion 3b. The protrusion 15 is formed of an elastic body such as rubber, and is inserted into the recess 10 formed in the first casing 2 in a state where the two casings 2 and 3 are overlapped and closed. It is like that.

  As shown in FIG. 3B, the side wall surface 10 a of the recess 10 extends from the bottom wall surface 10 b of the recess 10 along the rotational direction (AB direction) of the two casings 2, 3 to the first casing 2. The inclined surface gradually expands toward the facing surface 2a. Further, the tip 15a of the protrusion 15 is formed in a tapered shape so that the width in the AB direction gradually decreases toward the tip. The recess 10 and the protrusion 15 constitute an engagement means 20 that engages the two casings 2 and 3 with each other and holds them in a closed state.

  As shown in FIG. 4, the connecting means 5 includes a substantially cylindrical tubular member 21 that protrudes from the facing surface 2 a of the first housing 2, and a first axis L <b> 1 with respect to the tubular member 21. And a connecting portion 23 that is pivotably mounted around the center.

  The lower end of the cylindrical member 21 in the axial direction is attached to a frame 25 fixed inside the first housing 2 so as not to move. Further, the upper end portion in the axial direction of the cylindrical member 21 is inserted into the inside from the facing surface 3 d of the second housing 3 together with the connecting portion 23.

  As shown in FIG. 5, the connecting portion 23 includes a substantially cylindrical first rotating portion 25 that is attached to the cylindrical member 21 so as to be rotatable around the first axis L <b> 1, and the first rotating portion 25. A flat plate portion 27 formed on the upper end portion 25a side and having a plane orthogonal to the first axis L1, and a second axis (first axis) provided on the upper surface 27a side of the flat plate portion 27 and orthogonal to the first axis L1. And a pair of urging means 30 for urging the two casings 2 and 3 around each other around the second reference axis line L2.

  The first rotating portion 25 has an outer diameter that is substantially the same as the inner diameter of the cylindrical member 21, and the upper end portion 25 a is held so as to protrude from the upper end portion 21 a of the cylindrical member 21. . The flat plate portion 27 is formed integrally with the first rotating portion 25, and a through hole 28 penetrating in the direction of the axis L1 is formed by the cylindrical member 21, the first rotating portion 25, and the flat plate portion 27. Has been. Through the through holes 28, the internal spaces of the two casings 2 and 3 are communicated with each other.

  The pair of urging means 30 are arranged at symmetrical positions across the first axis L1. Each urging means 30 is fixed to the upper surface 27a of the flat plate portion 27 and has a U-shaped shaft body 31 having a columnar shaft portion 31a disposed in the second axis L2 direction, and around the second axis L2. A second rotating portion 33 that is rotatably attached to the cylindrical shaft portion 31a, and is wound around the cylindrical shaft portion 31a, and the second rotating portion 33 is rotated around the second axis L2 with respect to the flat plate portion 27. And a torsion spring 35 for urging in one direction (C direction).

  As shown in FIG. 4, the second rotating portion 33 is arranged so that the second axis L2 is orthogonal to the longitudinal direction of the two casings 2 and 3 from the base end portions 2c and 3c to the tip end portions 2b and 3b. The frame 37 fixed inside the second casing 3 is attached so as not to move.

By configuring the urging means 30 in this way, the second casing 3 is rotated in the C direction around the second axis L2 with respect to the first casing 2 by the urging force of the torsion spring 35. It is energized to do. Therefore, in a state where the two casings 2 and 3 are overlapped with each other and closed, the tip portions 2b and 3b of the two casings 2 and 3 are brought close to each other by this urging force, and the protrusion 15 is reliably secured. It can be inserted into the recess 10.

  In addition, the connecting means 5 has two housings 2 and 3 connected to the second housing 2 and 3 in conjunction with an operation of opening and closing the two housings 2 and 3 around the first axis L1. Guide means 40 is provided for rocking each other about the axis L2.

  That is, the guide means 40 includes an end face 21 b on the upper end side of the cylindrical member 21 and a rod-like member 41 fixed inside the second housing 3. The rod-shaped member 41 can be brought into contact with the end surface 21 b of the cylindrical member 21 by the urging force of the torsion spring 35, and the end surface 21 b is inclined in the longitudinal direction of the two casings 2 and 3.

  For this reason, when the two casings 2 and 3 are rotated and opened relative to each other about the first axis L 1, the second casing 3 is twisted with respect to the first casing 2. The tip portions 2b and 3b of the two casings 2 and 3 are separated from each other by swinging in a direction against the urging force (D direction). Further, when the two casings 2 and 3 are rotated and closed with respect to each other about the first axis L 1, the second casing 3 is connected to the first casing 2 by the torsion spring 35. The tip portions 2b and 3b of the two casings 2 and 3 come close to each other by swinging in the urging direction (C direction).

  However, in a state where the two casings 2 and 3 are overlapped and closed, the rod-like member 41 does not come into contact with the end surface 21b. That is, as shown in FIG. 5, a recess 43 that is recessed from the end surface 21b in the first axis L1 direction is formed in the end surface 21b where the rod-like member 41 is located in a state where the two casings 2 and 3 are closed. In the state where the two casings 2 and 3 are closed, the rod-like member 41 enters the recess 43. When the rod-like member 41 enters the recess 43, the rod-like member 41 is not in contact with the end face 21b, and the tip portions 2b, 3b of the two casings 2, 3 are moved by the urging force of the torsion spring 35. They are designed to hold each other.

  A method of using the mobile phone 1 configured as described above will be described.

When the cellular phone 1 is carried in a bag or a pocket of clothes, the two casings 2 and 3 are overlapped and closed as shown in FIG. In this state, as shown in FIG. 3, the tip portions 2 b and 3 b of the two casings 2 and 3 are close to each other by the biasing force of the biasing means 30, and the protrusion 15 is inserted into the recess 10. Yes. For this reason, the two housings 2 and 3 are engaged with each other, and even if an external force that rotates the two housings 2 and 3 around the first axis L1 is applied, The relative positions of the housings 2 and 3 are not easily shifted, and the two housings 2 and 3 can be held at relatively accurate positions.

  In this state, when the mobile phone 1 is used, the second housing 3 is rotated 180 ° around the first axis L1 with respect to the first housing 2 as shown in FIG. The two cases 2 and 3 are opened to each other.

  At this time, the tip portion 15a of the projecting portion 15 formed in a tapered shape moves along the side wall surface 10a of the concave portion 10 having an inclined surface. Further, at this time, the front end portions 2b and 3b of the two casings 2 and 3 are gradually moved in the direction away from each other about the second axis L2 by the guide means 40, and the first casing 2 is opposed to the first casing 2. Since a minute gap is generated between the surface 2 a and the protrusion 15, the protrusion 15 does not rub against the facing surface 2 a of the first housing 2.

In this state, for example, when making a call, the operation unit 7 is operated, and the call is started through the microphone unit 9 and the speaker unit 13. For example, when a mail is received, the operation unit 7 is operated to display the content of the received mail on the display unit 11.

  As described above, according to the mobile phone 1, the two casings 2, 2 are provided by providing the casings 2, 3 with the recesses 10 and the protrusions 15, and the connecting means 5 with the biasing means 30. 3 can be kept closed from each other, and the two casings 2 and 3 can be held in relatively accurate positions. Therefore, when the two casings 2 and 3 are closed to each other and the mobile phone 1 is carried, the two casings 2 and 3 can be prevented from opening unexpectedly.

  In addition, in the state where the two casings 2 and 3 are closed to each other, the two casings 2 and 3 do not rotate unexpectedly when the display unit exposed to the outside is visually recognized. 1 good use environment can be secured.

  Further, when the two casings 2 and 3 are rotated and opened with respect to each other, the leading end portions 2b and 3b of the two casings 2 and 3 are separated from each other around the second axis L2 by the guide means 40. Since it gradually moves in the direction, the facing surface 2a of the first housing 2 and the operation portion 7 provided on the facing surface 2a are prevented from being damaged by the protrusion 15 provided on the second housing 3. it can.

  When the two casings 2 and 3 are rotated and opened from the closed state, the tip 15a of the projecting portion 15 formed in a tapered shape moves along the side wall surface 10a of the recess 10. Therefore, the protrusion 15 can be smoothly escaped from the recess 10.

  Next, FIG. 6 shows a second embodiment according to the present invention. Although this embodiment has the same basic configuration as the mobile phone 1 shown in FIGS. 1 to 5, the configuration of the engaging means 20 is different, so the configuration of the engaging means 20 will be described. 5 are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 6, the engaging means 20 is configured by using a microphone portion 9 provided on the distal end side of the facing surface 2 a of the first housing 2.

That is, the microphone unit 9 includes a recess 51 that is recessed inward from the facing surface 2 a of the first housing 2, a through-hole 53 formed in the bottom wall surface 51 b of the recess 51, and the first housing 2. A microphone 55 provided inside and fixed to a position facing the through hole 53 is provided. The microphone 55 converts sound that reaches from the outside through the through-hole 53 into an electric signal, and is fixed to a circuit board 57 disposed inside the first housing 2. The recess 51 has an inclined surface that gradually spreads from the bottom wall surface 51b toward the facing surface 2a of the first housing 2 in order to efficiently collect sound from the outside.

  A projecting portion 59 to be inserted into the concave portion 51 of the microphone unit 9 is attached to the facing surface 3d of the second housing 3 in a state where the two housings 2 and 3 are closed. The protruding portion 59 is formed of an elastic body such as rubber similarly to the protruding portion 15 of the first embodiment, and the tip end portion 59a is tapered. The engaging means 20 is constituted by the concave portion 51 of the microphone portion 9 and the protruding portion 59 that can be inserted into the concave portion 51.

  As described above, according to the mobile phone 1, the same effects as those of the first embodiment can be obtained, and the through hole 53 of the microphone unit 9 can be blocked by the protrusion 59. Accordingly, when the mobile phone 1 is carried with the two casings 2 and 3 closed, foreign substances such as dust, dust, and liquid enter the first casing 2 from the through hole 53. Therefore, the microphone 55 can be prevented from being damaged.

  In the second embodiment, the engaging means 20 is configured using the microphone unit 9 as the recess 51. However, the engaging unit 20 may be configured using a speaker unit, for example. In this case, instead of the microphone 55, a speaker that converts an electrical signal into sound may be disposed to face the through hole of the recess. Further, for example, the engaging means 20 may be configured using a light emitting unit for notifying information such as incoming call, reception of e-mail, alarm, etc. by light emission. In this case, a light emitting element made of a light emitting diode instead of the microphone 55 may be arranged to face the through hole of the recess.

  Even when the engaging means 20 is configured using the speaker unit and the light emitting unit, in the same manner as the microphone unit 9, the speaker and the light emitting element are in a state where the two casings 2 and 3 are closed to each other. Can prevent damage.

  In the first and second embodiments, the protrusions 15 and 59 are attached to the facing surface 3d of the second housing 3. However, the present invention is not limited to this, and the protrusions 15 and 59 are not limited thereto. May not be easily detached from the facing surface 3d. Therefore, for example, as shown in FIG. 7, the second casing 3 in which the engaging portions 61 and 62 formed in a hook shape are formed on the base end side of the protruding portions 15 and 59 and the protruding portions 15 and 59 are attached. The engaging portions 61 and 62 may be engaged with the through holes 63 and 64 formed in the facing surface 3d.

  Furthermore, although the guide means 40 is provided in the connecting means 5, it does not need to be provided. In the case of this configuration, even when the two casings 2 and 3 are rotated and opened from the closed state, the tip portions 2b and 3b of the two casings 2 and 3 are brought close to each other by the biasing means 20. By being urged in the direction, the protrusions 15 and 59 come into contact with the facing surface 2 a of the first housing 2. However, since the projections 15 and 59 are formed of an elastic body such as elastically deformable rubber, the opposing surface 2a of the first housing 2 and the operation portion 7 provided on the opposing surface 2a are rubbed and damaged. Can be prevented.

  Moreover, although the operation part 7 was provided in the opposing surface 2a of the 1st housing | casing 2, and the display part 11 was provided in the outer surface 3a of the 2nd housing | casing 3, it is not restricted to this, For example, the display part 11 May be provided on the facing surface 2 a of the first housing 2, and the operation unit 7 may be provided on the outer surface 3 a of the second housing 3. In the case of this configuration, since the two casings 2 and 3 do not rotate unexpectedly when the operation unit 7 is operated with the two casings 2 and 3 closed, the mobile phone 1 good operability can be secured. Further, the projections 15 and 59 do not damage the display unit 11 when the two cases are rotated and opened.

  Further, the mobile phone 1 is not limited to the mobile phone 1, and any mobile terminal device may be used such as a PDA or a notebook computer in which two housings are connected to each other by a connecting means so as to be opened and closed.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

It is a schematic plan view which shows the state which opened the 1st, 2nd housing | casing which comprises the mobile telephone which is an example of the portable terminal device which concerns on 1st Embodiment of this invention mutually. FIG. 2 is a schematic plan view showing a state in which the first and second housings are mutually closed in the mobile phone of FIG. 1. 1 shows a state in which the first and second housings are closed with each other, (a) is a schematic front view, and (b) shows the main part of (a). It is an enlarged front view. FIG. 2 is a cross-sectional view showing an engaging means and a connecting means in the mobile phone of FIG. 1. FIG. 2 is an enlarged perspective view showing connecting means in the mobile phone of FIG. 1. It is an expanded sectional view which shows the engaging means of the mobile telephone based on 2nd Embodiment of this invention. It is an expanded sectional perspective view which shows the engaging means of the mobile telephone based on other Embodiment of this invention.

Explanation of symbols

1 Mobile phone (mobile terminal device)
2 1st housing | casing 2a Opposing surface 2b Tip part (other end part)
2c Base end (one end)
3 2nd housing | casing 3a outer surface 3b front-end | tip part (other end part)
3c Base end (one end)
3d Opposing surface 5 Connecting means 7 Operating section 10, 51 Recess 10a Side wall surface (inclined surface)
10b, 51b Bottom wall surface 11 Display portion 15, 59 Protrusion portion 30 Energizing means 40 Guide means 53 Through hole 55 Microphone L1 First axis (first reference axis)
L1 second axis (second reference axis)

Claims (6)

Two housings that can be stacked in the thickness direction;
A connecting portion that rotatably connects one housing and the other housing between an open state and a closed state around a first reference axis extending in the thickness direction;
A recess formed in the facing surface of the one housing that faces the other housing in the closed state;
Provided on the facing surface of the other housing facing the one housing in the closed state, inserted into the recess in the closed state, and on the rotation direction side from the closed state to the open state At least part of the side wall is perforated and a protrusion substantially in contact with at least a portion of the side wall of the recess,
The concave portion is formed with an inclined surface that gradually spreads from the bottom wall surface of the concave portion toward the opposing surface of the one casing on the side wall portion on the rotation direction side from the closed state to the open state. A through hole is formed in
A portable terminal device, wherein a microphone or a speaker is provided inside the through hole in the one casing .   The connecting portion includes guide means for gradually separating the one housing and the other housing in the thickness direction in conjunction with the rotation from the closed state to the open state. The portable terminal device according to claim 1. The opposing surface of the one casing and the opposing surface of the other casing each have a substantially rectangular shape,
The connecting portion connects one end of the one casing and one end of the other casing, and connects the other end of the one casing and the other end of the other casing to each other. Biasing means for biasing in the direction of approaching
The recess is formed in the other end of the one casing,
The portable terminal device according to claim 1, wherein the protrusion is provided on the other end of the other casing. The opposing surface of the one casing and the opposing surface of the other casing each have a substantially rectangular shape,
The connecting portion connects one end of the one casing and one end of the other casing, and connects the other end of the one casing and the other end of the other casing to each other. An urging means for urging in a direction to approach the urging means, and the other end portion of the one casing against the urging force of the urging means in conjunction with the rotation from the closed state to the open state. The other end of the other casing is gradually separated from the other end in the thickness direction, and the other end of the one casing and the other are interlocked with the rotation from the open state to the closed state. And a guide means for bringing the other end of the housing close to the thickness direction,
The recess is formed in the other end of the one casing,
The portable terminal device according to claim 1, wherein the protrusion is provided on the other end of the other casing. An operation unit provided on an opposing surface of the one housing;
Portable terminal device according to any one of claims 1 to 4, characterized in that it comprises a display unit provided on the external surface opposite said other housing surface facing. Portable terminal device according to any one of claims 1 to 5 wherein the protruding portion is characterized by comprising an elastic body.

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