JP2007110589A - Mobile communication device - Google Patents

Abstract

The present invention provides an ideal form that is stable even when a mobile communication device is placed on a desk, and that allows a user to comfortably view a television or make a videophone call.
A first casing having a display section, a second casing having an operation section, and a hinge section that connects the first casing and the second casing so as to be freely opened and closed. 11 are provided. The hinge portion 11 is provided with an opening / closing axis X and a rotation axis orthogonal to the opening / closing axis X, and the display portion 5 is supported so as to be able to be turned upside down around the rotation axis. When the first casing 2 is opened, an angle holding mechanism 52 is provided that holds the first housing 2 at a holding angle from the start of opening to 90 degrees.
[Selection] Figure 5

Description

  The present invention relates to a mobile communication device such as a mobile phone and a PHS, and more particularly to a mobile communication device including a camera and a TV tuner.

  In recent years, mobile communication devices have been reduced in size like mobile phones and PHS, and various functions such as a TV reception function, a videophone function, a digital camera function, and a digital video camera function have been installed. Yes. In this type of portable communication device, a first casing having a display unit, a second casing having an operation unit, and a hinge that connects the first casing and the second casing so as to be freely opened and closed. Some of the hinge portions have an opening / closing axis and a rotation axis orthogonal to the opening / closing axis. And in order to improve operativity, the technique in which the display part of a 1st housing | casing rotates in a direction orthogonal to a 2nd housing | casing via a hinge part is known.

  For example, in the mobile phone disclosed in Patent Document 1, the display unit can be exposed in a compact manner, and the display unit can be used, or the camera unit and the display unit can be both exposed to serve as a digital camera. It can be used.

  In the portable communication device of Patent Document 2, when the lid is closed, the apparatus main body provided with the objective lens at a position facing the operation unit and the rotation support that is rotatably supported around the first axis. And a display unit supported to be rotatable about a second axis orthogonal to the first axis with respect to the rotation support unit. As a result, it is possible to improve the operability at the time of photographing a landscape or the like by the camera unit and ensure good portability.

Patent Document 3 has a structure in which the hinge portion is rotated by the second rotation shaft, and the display surface of the first housing also rotates in the direction orthogonal to the operation surface of the second housing via the hinge portion. A portable electronic device that is made possible is described. In this portable electronic device, in a state where the first housing and the second housing are opened beyond a predetermined angle range, the portable electronic device is arranged around the second rotation axis of the first housing or the second housing. A rotation preventing means for preventing the rotation is provided so that the first casing and the second casing do not rotate around the second rotation axis. For this reason, it is described that the two cases are opened and stably held without wobbling.
JP 2003-125049 A Japanese Patent Laying-Open No. 2004-15703 (FIG. 1) JP 2004-138092 A

  However, in Patent Document 1, it is not possible to take a picture by placing it on a desk, and it is necessary to take it with a hand.

  In addition, when the photograph is taken while being placed on the desk in the state of FIG. 1 of Patent Document 2, the center of gravity of the first housing is detached from the second housing, and the state becomes unstable. In addition, if the first casing is heavier than the second casing, it becomes more unstable, and if it is placed on a desk, the second casing may float.

  Furthermore, in patent document 3, there is no description about the arrangement | positioning location of the camera in the state which mounted the apparatus, and the inclination of a display part.

  An object of the present invention is to provide an ideal form that is stable even when a mobile communication device is placed on a desk, and that allows a user to comfortably view a television or make a videophone call.

  In order to achieve the above object, in the present invention, the angle is held at a holding angle from the beginning of opening to 90 degrees.

Specifically, in the first invention, the first casing having the display unit, the second casing having the operation unit, and the first casing and the second casing are connected to be freely opened and closed. And a hinge part
The hinge portion has an opening / closing axis and a rotation axis orthogonal to the opening / closing axis, and is intended for a mobile communication device in which the display portion is supported so as to be turned upside down around the rotation axis.

  And when opening the said 1st housing | casing, the angle holding | maintenance mechanism hold | maintained with the holding | maintenance angle from the opening start to 90 degree | times opening is provided.

  That is, when the mobile phone is placed on a desk in an open state and the display unit is on the surface side (operation unit side) and the display unit is viewed at an appropriate angle, the open angle becomes greater than 90 degrees, The mobile communication device is not stable due to the weight of the first casing. In addition, if an attempt is made to hold the first casing from the beginning of opening until it opens 90 degrees, the first casing will be closed with the weight of the first casing if there is no holding mechanism. However, according to the above configuration, the angle holding mechanism opens the first casing of the mobile communication device to reverse the display unit to the opposite side of the operation unit, and the predetermined interval from the start of opening until 90 degrees is opened. It can be held at the holding angle. As a result, the first housing is placed on the desk in a stable state by hand, so that the display unit can be easily viewed at an appropriate angle during videophone, TV reception, video playback, and the like.

  In the second invention, the angle holding mechanism is provided in the hinge portion.

  According to the above configuration, it is not necessary to provide a mechanism for holding the angle separately, so that a compact portable communication device can be manufactured at low cost.

  In the third invention, a plurality of the holding angles are set.

  According to said structure, since it can hold | maintain at various angles from the opening start to 90 degree | times, a display part is stably hold | maintained in the position which is easy to see according to a mounting position.

  In the fourth invention, a television receiving function is provided. In the fifth invention, a moving image reproduction function is provided. Furthermore, the sixth invention has a videophone function.

  In these inventions, since the display unit can be used while being held at an appropriate angle, the respective functions can be used easily and comfortably.

  In a seventh aspect of the invention, the first casing includes a base portion on the hinge portion side, and the display portion is supported on the base portion so as to be turned upside down around the rotation axis.

  According to said structure, the main mechanism of a hinge part is arrange | positioned in a base part, and a screen can be provided in the frame of the display part hold | maintained at this base part.

  In the eighth invention, a videophone microphone is provided on the surface of the base portion of the first housing opposite to the operation portion of the second housing.

  In other words, in a normal mobile communication device, the call microphone is provided on the surface side of the second housing where the operation unit is located. Therefore, when the display unit is rotated, the call microphone is connected to the operation unit. It will not be on the opposite side. For this reason, it is difficult to pick up a conversation when using the videophone function while viewing the inverted display portion. However, according to the above configuration, even when the display unit is inverted, the videophone microphone is placed in front of the caller, and the voice is reliably picked up when using the videophone, so the videophone can be used comfortably. .

  In the ninth invention, speakers are provided on the left and right side surfaces of the first housing.

  According to said structure, even if it mounts on a desk, since the sound from a speaker is not obstruct | occluded and it becomes possible to hear stereo sound from right and left, comfortable use is attained.

  In a tenth aspect of the invention, the display unit is a liquid crystal display unit.

  According to the above configuration, the viewing angle of the liquid crystal display unit is likely to be limited. However, according to the present invention, the liquid crystal display unit can be stably held at an appropriate angle, which is highly convenient.

  In the eleventh invention, the display section is composed of an organic EL display section.

  According to said structure, since an organic electroluminescent display part can be formed thinly, the whole portable communication apparatus becomes thin and lightweight.

  In a twelfth aspect, the mobile communication device is a foldable mobile phone.

  According to said structure, it is excellent in portability and can place it by hand anywhere and can see a display part at an appropriate angle.

  As described above, according to the present invention, the first housing of the foldable mobile communication device is opened, the display unit is inverted, and is held at an angle from the start of opening until it is opened 90 degrees. When performing a videophone or the like, it is possible to see the inverted display portion in a state of being placed on a desk without being held in hand. In addition, the foldable mobile communication device itself has good self-supporting stability when placed on a desk.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a closed state of a mobile phone 1 as a mobile communication device according to an embodiment of the present invention as viewed from the left. FIG. 2 is a perspective view of the opened state of the mobile phone 1 as viewed from the left.

  As shown in FIGS. 1 and 2, the mobile phone 1 of the present embodiment has a first housing 2 and a second housing 3, which are formed by a hinge portion 11 (shown in FIG. 7). It is connected so as to be openable and closable so as to rotate about the opening and closing axis X.

  The first casing 2 includes a rectangular plate-like display unit 5, and a liquid crystal panel 5 a is provided on the front side of the display unit 5 in a full frame. In addition, a receiver 6 is provided above the liquid crystal panel 5 a on the surface side of the first housing 2.

  In the second casing 3, an operation unit 4, a first transmission unit 24, a second transmission unit 23, a charging terminal 25, and the like are installed. The operation unit 4 includes an input button 22, a function button 21, and the like.

  The first housing 2 includes a gate-shaped base portion 7 on the lower side of the display unit 5 (second housing 3 side). On the other hand, the second casing 3 includes a bulging portion 10 that protrudes vertically so as to be sandwiched between the base portions 7. The hinge portion 11 is accommodated in the cover 7 a of the base portion 7 and the cover 10 a of the bulging portion 10. As a result, the display unit 5 is supported on the base unit 7 so as to be reversible around the rotation axis Y.

  3 raises the first housing 2 90 degrees around the opening / closing axis X from the state where the first and second housings 2 and 3 of FIG. 1 are closed, and further rotates 90 degrees around the rotation axis Y. It is the perspective view seen from the left direction which shows the state which carried out. In this state, since the display unit 5 is perpendicular to the second casing 3, the display unit 5 is very difficult to see when the mobile phone 1 is placed on a desk.

  FIG. 4 shows a state in which the first housing 2 is further rotated 90 degrees around the rotation axis Y from the state of FIG. 3 so that the display unit faces the back, and the first housing 2 is slightly returned in the closing direction. It is. If the mobile phone 1 is placed on the desk in this state, the user can comfortably view the image displayed on the liquid crystal panel 5a.

  FIG. 5 is a diagram in which the cover 7a of the base portion 7 and the cover 10a of the bulging portion 10 in the state of FIG. 4 are removed so that the hinge portion 11 can be seen. FIG. 6 shows the configuration of the hinge portion 11. FIG. 7 shows the hinge portion 11 in which the components shown in FIG. 6 are assembled.

  The hinge part 11 includes a leg part 40 fixed to the second housing 3, a U-shaped base plate 51, and a rotating part 41 fixed to the display part 5. The base plate 51 is rotatably supported by the leg portion 40 around the shaft 55. The shaft 55 is at the center of the spring 58, and the shaft 55 forms an opening / closing axis X. The U-shaped base plate 51 rotates about the opening / closing axis X, whereby the first casing 2 and the second casing 3 can be opened and closed.

  In addition, a rotation axis Y that rotates in the direction perpendicular to the opening / closing axis X is provided at the center of the base plate 51, and the rotation unit 41 is disposed on the rotation axis Y, so that the display unit 5 is configured so that the rotation axis Rotation around Y is possible.

  An angle holding mechanism 52 is provided on one side of the opening / closing axis X (on the right side when opened). The angle holding mechanism 52 is fastened and fixed to the base plate 51 by screws 57. The tip of the shaft 55 is caulked after the washer 56 is inserted. Inside the angle holding mechanism 52, a movable cam 53 and a spring 58 are mainly incorporated. The spring 58 is located inside the angle holding mechanism 52, and always exerts a force that drives the movable cam 53 outward. The fixed cam 54 is covered so that the movable cam 53 does not come out. A recessed portion 54 a is formed in a contact portion between the fixed cam 54 and the movable cam 53. A flat portion 54b is formed in a contact portion with the movable cam 53 other than the concave portion 54a. Concave portions 54a similar to the concave portions 54a for videophones and the like are provided for the fully closed and fully opened first casing 2, respectively. That is, in the present embodiment, the recesses 54a are provided at three locations.

-Action-
Next, the operation of the mobile phone 1 of this embodiment will be described.

  First, in order to open and close the first housing 2 and the second housing 3, the first housing 2 and the second housing 3 are rotated about the opening / closing axis X. Thus, the movable cam 53 moves while being in contact with the concave portion 54a and the flat portion 54b of the fixed cam 54. The first casing 2 and the second casing 3 slide smoothly when the movable cam 53 slides on the flat surface portion 54b. Next, when the first casing 2 is further rotated with respect to the second casing 3, the movable cam 53 falls into the recess 54a. Then, a large force is required for the movable cam 53 to rise again to the flat surface portion 54b. That is, from the state in which the movable cam 53 falls into the recess 54a, the first housing 2 and the second housing 3 are used for predetermined videophones and the like because they do not move to the flat portion 54b unless a large force is applied. The display unit 5 is held at the holding angle and in the state shown in FIG. As shown in FIG. 5, by appropriately setting the position of the concave portion 54a of the fixed cam 54, a holding angle for a videophone or the like is set so that the first casing 2 stops at a fixed position during opening and closing. If it is placed on the desk in this state, it is possible to watch the video without hand when watching TV. The sound can be heard from the speakers 8 arranged on the left and right of the first housing 2.

  Similarly, when making a videophone call, the sound is heard from the speakers 8 on the left and right sides of the first housing 2 while watching the video, and the microphone on the back of the cover 7a of the first housing 2 is used as a microphone. A voice can be picked up and talked by the telephone microphone 9.

-Effect of the embodiment-
Therefore, according to the mobile phone 1 of the present embodiment, the first casing of the foldable mobile communication device is opened, the display unit is reversed, and held at an angle from the beginning of opening to 90 degrees to thereby When performing reception or videophone, the liquid crystal panel 5a can be viewed in a state of being placed on a desk without being held in hand. In addition, the foldable portable communication device itself has good self-supporting stability when placed on a desk.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, although the example of the mobile phone 1 is shown as the mobile communication device in the above embodiment, the present invention can be applied to a mobile communication device such as a PHS or PDA that includes a camera and a TV tuner.

  In the above embodiment, the display unit 5 includes the liquid crystal panel 5a. However, the display unit 5 may include an organic EL. In this case, since the organic EL display unit can be formed thin, the entire portable communication device is thin and lightweight.

  In the above embodiment, the holding angle for the videophone or the like of the display unit 5 is only one place, but it may be a plurality of places. In this case, four or more recesses 54a may be provided including when fully closed and when fully opened. As a result, the display unit 5 can be held at various angles from the beginning of opening until it opens 90 degrees, so that the display unit 5 is stably held at a position that is easy to see according to the mounting position.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

  As described above, the present invention is useful for mobile communication devices such as mobile phones and PHS equipped with cameras and TV tuners.

It is the perspective view which looked at the closed state of the mobile phone concerning the embodiment of the present invention from the left direction. It is the perspective view seen from the left direction which shows the open state of a mobile telephone. The first housing and the second housing in FIG. 1 are closed, the first housing is raised 90 degrees around the opening / closing axis, and the display unit is rotated 90 degrees around the rotation axis. It is the perspective view seen from the left direction shown. FIG. 3 is a perspective view of the state in which the first housing is rotated 180 degrees around the rotation axis from the state of FIG. 3 so that the display unit faces the back, and the first housing is returned to the closing direction, as viewed from the left. It is. It is the perspective view which removed the cover in the state of FIG. 4, and made the hinge part visible. It is a disassembled perspective view which shows the structure details of a hinge part. It is a perspective view which shows a hinge part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cellular phone 2 1st housing | casing 3 2nd housing | casing 4 Operation part 5 Display part 7 Base part 8 Speaker 9 Videophone microphone 11 Hinge part 52 Angle holding mechanism X Opening and closing axis Y Rotating axis

Claims (12)

A first casing having a display section; a second casing having an operation section; and a hinge section that connects the first casing and the second casing so as to be openable and closable.
The hinge part has an opening / closing axis and a rotation axis orthogonal to the opening / closing axis, and the display part is a portable communication device supported so as to be able to be turned upside down around the rotation axis,
A portable communication device comprising an angle holding mechanism for holding at a holding angle from the start of opening to 90 degrees when opening the first casing. The mobile communication device according to claim 1,
The said angle holding mechanism is provided with the said hinge part, The portable communication apparatus characterized by the above-mentioned. The mobile communication device according to claim 1 or 2,
A portable communication device characterized in that a plurality of the holding angles are set. The portable communication device according to any one of claims 1 to 3,
A portable communication device having a television reception function. The mobile communication device according to any one of claims 1 to 4,
A mobile communication device having a video playback function. The mobile communication device according to any one of claims 1 to 5,
A portable communication device having a videophone function. The mobile communication device according to any one of claims 1 to 6,
The first housing includes a base portion on a hinge portion side, and the display portion is supported on the base portion so as to be turned upside down about the rotation axis. The mobile communication device according to claim 7, wherein
A mobile communication device, wherein a videophone microphone is provided on a surface of the base portion of the first housing opposite to the operation portion of the second housing. The portable communication device according to any one of claims 1 to 8,
A portable communication device, characterized in that speakers are provided on the left and right side surfaces of the first housing. The portable communication device according to any one of claims 1 to 9,
The mobile communication device, wherein the display unit is configured by a liquid crystal display unit. The portable communication device according to any one of claims 1 to 9,
The mobile communication device, wherein the display unit is composed of an organic EL display unit. The mobile communication device according to claim 1, wherein the mobile communication device is a foldable mobile phone.

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