JP4414281B2 - Mobile terminal device - Google Patents

Description

  The present invention relates to a mobile terminal device such as a mobile phone, a simple mobile phone, a PDA (Personal Digital Assistants), a digital camera, and a playback device for video and music, which are configured by connecting two casings in a rotatable manner. .

Conventionally, as a mobile terminal device having two casings, two casings arranged so as to be superposed on each other are rotated around each other around an axis along the overlapping direction of the two casings. There is one provided with a connecting portion that is movably connected (for example, see Patent Document 1). In the portable terminal device, in a state where both housings are overlapped, an operation unit including a plurality of pressable operation keys is provided on the surface of the other housing that is covered with one housing. 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. When making a call or operating the operation unit from this closed state, hold one case with one hand and hold the other case against the other case with the other hand. To rotate about the axis.
JP-A-7-288860

However, since the conventional portable terminal device is configured to open the two cases with both hands, it is difficult to open the two cases with each other when one hand is blocked by luggage or the like. There is a problem.
An object of the present invention is made in view of the above-described circumstances, and an object of the present invention is to provide a mobile terminal device that can easily open two housings with one hand.

In order to solve the above problems, the present invention proposes the following means.
The portable terminal device according to the present invention includes two housings that can be overlapped in the thickness direction, the two housings being rotatable about a first reference axis extending in the thickness direction, Connecting means for oscillating about the second reference axis perpendicular to the first reference axis with respect to the other casing, and the one casing to the other casing An urging means for urging in one rotation direction about the first reference axis, and the two urgings of the two cases by the urging means being restricted, And a lock mechanism that holds the two in a closed state, wherein the lock mechanism is fixed to one housing and protrudes along the first reference axis direction, and the other It is fixed to the housing and is recessed in the direction of the first reference axis so that the two housings overlap each other. And a holding recess to accommodate the sliding portion, the two closed state the casing closed to each other, about said second axis, relative to the other housing to the one housing When the locking mechanism is released by releasing the sliding portion from the holding recess, the one casing is moved by the biasing means with respect to the other casing. It is characterized in that it is rotated around its axis and is in an open state .
The state in which the two casings are closed to each other means that the two casings are at an angular position where the two casings overlap with each other with the widest overlapping area, and that the two casings are around the second reference axis. A state is shown in which the facing surfaces of two housings facing each other by overlapping two housings are in the closest positions.

Further, the portable terminal device according to the present invention, the connecting means comprises a base member fixed to the housing of the other side, rotatably mounted on said first reference axis direction with respect to said base member a shaft member fixed to the housing of the hand, and a slider member which is rotatably connected to the second reference axis direction with respect to the shaft body, forming the sliding portion on the slider member is, the holding recess is formed in the base member, the locking mechanism, the front SL sliding portion, characterized in that it further comprises pressing means for pressing the holding recess.

Further, in the mobile terminal device according to the present invention, the slider member includes the sliding portion and a chamfered portion provided on the opposite side with respect to the sliding portion with respect to the first reference axis, The one housing includes a second chamfered portion along the chamfered portion, and the base member slides the sliding portion when rotating the slider member around the first axis. And an inclined surface for swinging the slider member around the second reference axis with respect to the base member.

  Further, the mobile terminal device according to the present invention opens the two casings by rotating them around the first reference axis from the closed state where the two casings are overlapped with each other. In this state, there is provided a regulating means for stopping the mutual rotation of the two casings based on the urging force of the urging means.

  According to the present invention, when the lock mechanism is released from the state in which the two casings are mutually closed, the two casings are mutually rotated about the first reference axis by the biasing means, and are opened to each other. It becomes a state. That is, for example, the two casings automatically open by simply moving the other casing that overlaps the casing around the second reference axis with a finger of a hand that holds one casing. Thus, it becomes possible to easily open the two casings.

  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 2c and 3c (hereinafter referred to as the base end portions 2c and 3c) of the two casings 2 and 3, respectively.

  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 two casings 2 and 3 are overlapped and closed. Further, a microphone portion 9 is provided at the distal end portion 2b of the first housing 2 located on the opposite surface 2a on the opposite side of the base end portion 2c.

  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 at the distal end portion 3b of the second casing 3 located on the opposite side of the base end portion 3c in the outer surface 3a.

As shown in FIG. 3, the connecting means 5 includes a base member 15 fixed to the first housing 2, a shaft body 17 that is rotatably attached to the base member 15 around the first axis L <b> 1, And a slider member 19 fixed to the second housing 3.
The base member 15 is formed in a substantially annular shape having a through hole 15a in the center. The base member 15 is formed with an inclined surface 21 whose height changes in the direction of the first axis L1 over a range of about 180 ° on the outer peripheral side in the radial direction. The inclined surface 21 faces the second housing 3 and is formed such that its height decreases from the proximal end 2c side to the distal end side of the first housing 2. . Further, a recessed portion (holding recessed portion) 23 cut out along the direction of the first axis L1 is formed at a circumferential position where the inclined surface 21 is lowest. Furthermore, an abutting portion (regulating means) 25 protruding along the first axis L1 direction is formed at a circumferential position where the inclined surface 21 is highest.

  The shaft body 17 includes a shaft cylindrical portion 27 formed in a substantially cylindrical shape having a through hole 17a at the center, and a flange portion 29 extending outward in the radial direction of the shaft cylindrical portion 27 over the circumferential direction. The shaft cylindrical portion 27 has an outer diameter dimension that is fitted into the through hole 15a of the base member 15 so as to be rotatable around the first axis L1. The flange portion 29 comes into contact with the end portion of the base member 15 in a state where the shaft cylindrical portion 27 is inserted into the through hole 15a of the base member 15, and the shaft with respect to the base member 15 in the first axis L1 direction. The body 17 can be positioned. In addition, the shaft body 17 is configured so that the slider member 19 can rotate about the second axis (second reference axis) L2 orthogonal to the first axis L1 with respect to the base member 15 and the shaft body 17. The connecting pin 31 is provided.

The slider member 19 is formed in a substantially annular shape having a through hole 19a through which the base member 15 and the shaft body 17 can be inserted, and is attached to the connecting pin 31 so as to be rotatable around the second axis L2. Yes. A sliding portion 33 that protrudes in the direction of the first axis L1 is formed on one end surface 19e of the slider member 19 that faces the base member 15. The sliding portion 33 is disposed at a radial position substantially equal to the radial dimension of the inclined surface 21 of the base member 15 with respect to the center of the through hole 19a. The sliding portion 33 is disposed so as to be accommodated in the holding recess 23 of the base member 15 at a position where the two casings 2 and 3 are overlapped with each other.
As shown in FIG. 4, two connecting pins 31 of the shaft body 17 protrude radially outward from the shaft cylindrical portion 27 with an interval of 180 ° in the circumferential direction, and the other end surface 19 f of the slide member 19. It is inserted into the groove 19b formed in this. The groove 19 b has a width dimension equal to the diameter dimension of the connecting pin 31.

The sliding portion 33 of the slider member 19 described above is pressed toward the holding recess 23 and the inclined surface 21 of the base member 15 by the pressing means 35. The pressing means 35 includes a pair of coil springs 37 and a columnar shaft portion 39 that fixes one end 37a of each coil spring 37 to each other. The coil spring 37 and the columnar shaft portion 39 are integrally formed. Has been. The pair of coil springs 37 are disposed at symmetrical positions with the connecting means 5 interposed therebetween, and each of the other ends 37 b is fixed to the second housing 3 together with the slider member 19.
The cylindrical shaft portion 39 extends in the direction of the second axis L2, and is inserted into a groove 19c formed on the other end surface 19f of the slider member 19 along the second axis L2. The columnar shaft portion 39 presses the end surface 17b of the shaft body 17 facing substantially the same direction as the other end surface 19f of the slider member 19 by the urging force of the pair of coil springs 37, so that the base member 15 or The shaft body 17 is urged in one direction (C direction) around the second axis L2. In other words, the sliding portion 33 is pressed against the holding recess 23 and the inclined surface 21 by this urging force.

As shown in FIGS. 5 and 6, the through holes 15a and 19a of the base member 15 and the slider member 19 are provided with torsion springs (biasing means) 41 wound around the first axis L1. Yes. One end 41 a of the torsion spring 41 is inserted into a groove 19 d formed in the other end surface 19 f of the slider member 19, and the other end 41 b of the torsion spring 41 is the inner peripheral surface of the through hole 15 a of the base member 15. It is sandwiched by a pair of protrusions 15b formed on the surface.
The torsion spring 41 urges the base member 15 so that the slider member 19 rotates in the direction (A direction) from the holding recess 23 toward the inclined surface 21, that is, fixed to the slider member 19. The second casing 3 is urged in the one rotation direction (A direction) around the first axis L <b> 1 with respect to the first casing 2 fixed to the base member 15. Further, the torsion spring 41 is configured such that the urging force thereof becomes weaker as the sliding portion 33 of the slider member 19 moves from the holding recess 23 of the base member 15 in the A direction. The torsion spring 41 is also inserted through the through hole 17a of the shaft body 17 as shown in FIG.
The pressing means 35, the holding recess 23 of the base member 15, and the sliding portion 33 of the slider member 19 restrict the mutual rotation of the two casings 2 and 3 by the torsion spring 41, thereby A lock mechanism is configured to hold the bodies 2 and 3 in a state of being superposed on 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 with each other and closed as shown in FIGS. In this state, the sliding portion 33 is inserted into the holding recess 23 by the pressing force of the pressing means 35, and the two casings 2 and 3 are engaged with each other. For this reason, even if an external force that rotates the two casings 2 and 3 around the first axis L1 is applied, the relative positions of the two casings 2 and 3 are not easily shifted. The two cases 2 and 3 can be held at relatively accurate positions.
In this state, when the mobile phone 1 is used, the first casing 2 is gripped with one hand, and the second casing 3 is held by the fingers gripping the first casing 2 with the first casing 2. Is swung in the C direction. At this time, as shown in FIG. 7, the sliding portion 33 comes out of the holding recess 23, that is, the lock mechanism is released. In this state, the second housing 3 together with the slider member 19 is centered on the first axis L <b> 1 with respect to the first housing 2, the base member 15, and the shaft body 17 by the biasing force of the torsion spring 41. The sliding portion 33 comes into contact with the inclined surface 21 of the base member 15.

Further, during this rotation, the sliding portion 33 is always in the state where the inclined surface 21 is pressed by the pressing force of the pressing means 35, so that the second portion follows the inclined surface 21 without leaving the inclined surface 21. 1 is lifted in the direction of the axis L1. For this reason, the slider member 19 gradually increases the inclination angle. As shown in FIGS. 1 and 8, the slider member 19 is larger than the base member 15 in the open state rotated 180 ° from the closed state. Will be tilted. That is, the second housing 3 is greatly inclined with respect to the first housing 2.
In the state where the second casing 3 is rotated 180 ° around the first axis L1 with respect to the first casing 2 from the closed state and the two casings 2 and 3 are opened to each other. Since the sliding part 33 contacts the abutting part 25 of the base member 15, the slider member 19 does not further rotate in the A direction. That is, it is possible to stably hold the two casings 2 and 3 in an open state.

  As described above, according to the cellular phone 1, the second casing 3 is moved to the first casing against the pressing force of the pressing means 35 from the state where the two casings 2 and 3 are closed to each other. The two housings 2 and 3 are automatically opened with each other by the biasing force of the torsion spring 41 simply by rotating in the C direction with respect to 2, so that the two housings can be easily opened with one hand. it can.

Further, in a state where the two casings 2 and 3 are overlapped and closed, the sliding portion 33 is inserted into the holding recess 23 by the pressing means 35 and the two casings 2 and 3 are engaged with each other. Therefore, relative rotation of the two casings 2 and 3 can be suppressed, and the two casings 2 and 3 can be reliably held in a closed state. 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.
Further, in a state where the two casings 2 and 3 are opened to each other by the biasing force of the torsion spring 41, the second casing 3 can be largely inclined with respect to the first casing 2, so When performing the operation, the microphone unit 9 and the speaker unit 13 can be arranged in a positional relationship suitable for a call.

In the above embodiment, the torsion spring 41 is disposed in the through holes 15a, 17a, 19a of the base member 15, the shaft body 17, and the slider member 19. However, the present invention is not limited to this, and at least the slider member 19 is disposed. It is only necessary that an urging means for urging the base member 15 in the A direction is provided.
In addition, although the inclined surface 21 is formed on the base member 15, when the two casings 2 and 3 are not swung around the second axis L <b> 2, they are orthogonal to the first axis L <b> 1 instead of the inclined surface 21. A flat surface may be formed.

Furthermore, the present invention is not limited to the mobile phone 1 and may be a mobile terminal device in which two casings are connected to each other by a connecting means and can be opened and closed like a PDA or a notebook computer.
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.

1 is a schematic plan view showing a state in which first and second casings constituting a mobile phone that is an example of a mobile terminal device according to an embodiment of the present invention are opened from each other; FIG. 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. FIG. 2 is a schematic cross-sectional view showing connection means in a state in which the first and second housings are mutually closed in the mobile phone of FIG. 1. FIG. 2 is an enlarged perspective view showing a connecting means and a pressing means in the mobile phone of FIG. 1. FIG. 2 is an enlarged perspective view showing connecting means and a torsion spring in the mobile phone of FIG. 1. FIG. 2 is an enlarged perspective view showing connecting means and a torsion spring in the mobile phone of FIG. 1. FIG. 2 is a schematic cross-sectional view showing the connecting means in a state where two casings are swung around a second axis from a state in which the two casings are mutually closed in the mobile phone of FIG. 1. FIG. 2 is a schematic cross-sectional view showing the connecting means in a state where two casings are opened from each other in the mobile phone of FIG. 1.

Explanation of symbols

1 Mobile phone (mobile terminal device)
2 First housing 3 Second housing 5 Connecting means 15 Base member 17 Shaft body 19 Slider member 21 Inclined surface 23 Holding recess 25 Abutting portion (regulating means)
33 Sliding part 35 Pressing means 41 Torsion spring (biasing means)
L1 first axis (first reference axis)
L2 Second axis (second reference axis)

Claims (4)

Two casings that can be superposed in the thickness direction, the two casings being rotatable around a first reference axis extending in the thickness direction, and the one casing being the other casing Connecting means for swingably connecting around a second reference axis perpendicular to the first reference axis, and the first reference axis relative to the other casing. A state in which the biasing means biasing in one rotation direction centered on the center and the two casings by the biasing means are restricted from rotating relative to each other, and the two casings are overlapped with each other and closed And a locking mechanism for holding the
The lock mechanism is fixed to one housing and protrudes along the first reference axis direction, and the locking mechanism is fixed to the other housing, and is recessed in the first reference axis direction and the 2 A holding recess that can accommodate the sliding portion at a position where two casings are overlapped,
From the closed state in which the two casings are closed to each other, one casing is swung with respect to the other casing around the second axis, and the sliding portion is released from the holding recess. Thus, when the lock mechanism is released, the biasing means causes the one casing to rotate around the first reference axis with respect to the other casing to be in an open state. A portable terminal device. Said connecting means comprises a base member fixed to the housing of the other hand, a shaft member rotatably mounted on said first reference axis direction with respect to the base member, the housing of the hand A slider member fixed and connected to the shaft body so as to be rotatable around the second reference axis;
The sliding portion is formed in the slider member, and the holding recess is formed in the base member;
The locking mechanism, the portable terminal apparatus according to pre SL sliding portion to claim 1, further comprising a pressing means for pressing the holding recess. The slider member includes the sliding portion and a chamfered portion provided on the opposite side of the sliding portion with respect to the first reference axis;
The one casing includes a second chamfered portion along the chamfered portion,
When the base member rotates the slider member around the first reference axis, the slider slides to slide the slider member relative to the base member around the second reference axis. The mobile terminal device according to claim 2, further comprising an inclined surface to be swung.   The biasing force of the biasing means is in a state in which the two casings are mutually opened around the first reference axis line from the closed state where the two casings are overlapped with each other. The mobile terminal device according to claim 1, further comprising a restricting unit that stops mutual rotation of the two casings based on the above.

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