JP5194062B2 - Mobile device - Google Patents

Description

  The present invention relates to a portable terminal in which a rotation-side casing is rotatably supported from a vertically long state to a horizontally long state or from a horizontally long state to a vertically long state.

  In recent years, with the start of digital terrestrial television broadcasting, mobile terminals represented by mobile phones have come to have a TV reception function and an Internet connection function. For this reason, it is necessary for the portable terminal to improve both portability and to make the image easier to see by enlarging the display screen. Furthermore, due to the nature of TV images and Internet screens, there is a need to view TVs and connect to the Internet with the display screen in a horizontally long state.

  Therefore, for example, as in Patent Document 1, the first casing and the second casing are connected to each other so that the first casing and the second casing can be folded and opened freely, and the liquid crystal display unit is connected to the first casing in a vertically long state and a horizontally long state. There is known a foldable mobile phone which is supported so as to be switchable.

Japanese Patent Laid-Open No. 2006-21576

  However, in the portable terminal such as Patent Document 1, when the liquid crystal display unit is rotated from the vertically long state to the horizontally long state or from the horizontally long state to the vertically long state, the first guide pin and the second guide pin respectively move in the guide grooves. By sliding, the trajectory of the liquid crystal display unit is configured to be regulated, so that a certain amount of frictional resistance is inevitable between the guide pin and the guide groove.

  Further, since it is necessary to form the periphery of the guide groove on the guide plate in order to reliably regulate the locus of the guide pin, there is a limit to downsizing the guide plate.

  The present invention has been made in view of the above points, and an object of the present invention is to smoothly rotate the rotation-side casing from the vertically long state to the horizontally long state or from the horizontally long state to the vertically long state, and to make the portable terminal compact. It is to be made.

  In order to achieve the above object, in the present invention, two link members are provided in the rotation support mechanism.

Specifically, in the first invention,
A portable terminal including a rotation-side casing and a rotation support mechanism that rotatably supports the rotation-side casing from a vertically long state to a horizontally long state or from a horizontally long state to a vertically long state is an object.

And the rotation support mechanism is
A rotation support mechanism body;
A first link member having one end rotatably connected to the first supported portion of the rotation-side housing and the other end rotatably connected to the first support portion of the rotation support mechanism main body;
A position where one end is rotatably connected to a second supported portion at a position away from the first supported portion in the rotation side housing, and the other end is separated from the first support portion in the rotation support mechanism main body. and a second link member rotatably coupled to the second support portion in,
The rotation locus of the first supported portion and the rotation locus of the second supported portion intersect .

According to the above configuration, since the rotation side housing and the rotation support mechanism main body are rotatably connected by the first and second link members, it is necessary to slide the guide pin into the guide groove as in the past. The frictional resistance is remarkably reduced. Further, since it is not necessary to provide the guide groove in the rotation support mechanism main body, it is not necessary to secure the space of the rotation support mechanism main body by the peripheral edge of the guide groove, and the rotation support mechanism main body can be downsized . Further, in the conventional structure in which the guide pins are slid into the guide grooves, the guide grooves cannot be crossed. However, in the present invention, since the rotation-side casing is rotatably supported by the first and second link members, the degree of freedom in design is increased, and the locus of the first supported portion and the locus of the second supported portion are Can be crossed. For this reason, it is not necessary to separate the locus of the first supported portion from the locus of the second supported portion, and the rotation support mechanism main body is reduced in size.

In the second invention, the same portable terminal as the first invention is targeted,
The rotation support mechanism is
A rotation support mechanism body;
A first link member having one end rotatably connected to the first supported portion of the rotation-side housing and the other end rotatably connected to the first support portion of the rotation support mechanism main body;
A position where one end is rotatably connected to a second supported portion at a position away from the first supported portion in the rotation side housing, and the other end is separated from the first support portion in the rotation support mechanism main body. A second link member rotatably connected to the second support part at
At least one of the first link member and the second link member is provided with an urging mechanism for assisting the rotational movement of the rotation side housing ,
The biasing mechanism is a torsion coil spring having one end connected to a first spring support portion provided on the rotation support mechanism main body and the other end connected to a second spring support portion provided on the second link member ,
A notch is formed between the second spring support portion and the second support portion of the second link member to avoid interference with the second spring support portion when the second link portion rotates. Yes.

According to the above configuration, the urging mechanism facilitates rotation of the rotation-side casing and enables one-handed rotation operation, and the rotation-side casing is stable in the horizontally long state or the vertically long state. In addition, since the rotation-side casing is rotatably supported by the rotation support mechanism main body by the first and second link members, the rotation-side casing is smooth even if the urging force of the urging mechanism is small. It moves to. In addition, the urging mechanism is realized with a simple configuration, and since there is no guide groove and the frictional resistance is small, it is not necessary to increase the spring constant, and the coil portion of the torsion coil spring is reduced. Further, the torsion coil spring also rotates with the rotation of the rotation-side casing. However, since the notch is formed in the second link member, contact with the second spring support portion can be avoided by this notch. For this reason, the rotation angle of the second link member can be increased .

  As described above, according to the present invention, the first and second link members support the rotation-side casing on the rotation support mechanism main body so as to freely rotate from the vertically long state to the horizontally long state or from the horizontally long state to the vertically long state. As a result, the rotating housing can be smoothly rotated from the vertically long state to the horizontally long state or from the horizontally long state to the vertically long state, and the portable terminal can be made compact.

It is a perspective view which shows the mobile phone in the folded state concerning embodiment of this invention. It is the perspective view which looked at the cellular phone from which the rotation side housing | casing was in the vertically long state in the open state from the front side. It is the perspective view which looked at the mobile telephone in the middle of switching a rotation side housing | casing to a vertically long state or a horizontally long state from the front side. It is the perspective view which looked at the mobile telephone from the front side when the rotation side housing | casing is in a horizontally long state in the open state. It is the perspective view which looked at the mobile telephone with a rotation side housing | casing in a vertically long state from the back side. It is the perspective view which looked at the mobile telephone in the middle of switching a rotation side housing | casing to a vertically long state or a horizontally long state from the back side. It is the perspective view which looked at a mode that the rotation support mechanism of a mobile telephone moves in the opening for a movement from the back side. It is the perspective view which looked at the mobile telephone in the middle of switching a rotation side housing | casing to a vertically long state or a horizontally long state from the back side. It is the perspective view which looked at the mobile telephone in the middle of switching a rotation side housing | casing to a vertically long state or a horizontally long state from the back side. It is the perspective view which looked at the mobile telephone in the state where a rotation side case is horizontally long from the back side. It is a rear view which shows the mode of the rotation support mechanism in the rotation side housing | casing in a vertically long state. It is a rear view which shows the mode of the rotation support mechanism in the middle of the rotation side housing | casing switching to a vertically long state or a horizontally long state. It is a rear view which shows the mode of the rotation support mechanism in the middle of the rotation side housing | casing switching to a vertically long state or a horizontally long state. It is a rear view which shows the mode of the rotation support mechanism in the middle of the rotation side housing | casing switching to a vertically long state or a horizontally long state. It is a rear view which shows the mode of the rotation support mechanism in the rotation side housing | casing in a horizontally long state. It is a rear view of a rotation support mechanism. It is a perspective view which expands and shows a side shielding member. The side shielding member is shown enlarged, (a) is a rear view, and (b) is a side view. It is a perspective view which expands and shows a lower shielding member. It is a perspective view which expands and shows a lower shielding member. It is a perspective view which expands and shows a lower shielding member.

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

  1 to 10 show a foldable mobile phone 1 as a mobile terminal according to an embodiment of the present invention, and this mobile phone 1 includes a thin plate-like rotating side housing 3 in which a display display 2 is built in the front side. ing. The rotation-side housing 3 is foldably connected to the fixed-side housing 5 around the hinge portion 4. For this reason, as shown in FIG. 1, when the rotation side housing | casing 3 and the stationary side housing | casing 5 are folded, it becomes a thin rectangular parallelepiped shape. On the other hand, as shown in FIG. 2, when the rotation side housing 3 is opened around the hinge portion 4, the vertically long display 2 appears on the front.

  Each of the rotation-side housings 3 is formed by connecting a rectangular dish-shaped front side cabinet 3a and a back side cabinet 3b with a dividing surface 3c parallel to the thickness direction. The front side cabinet 3a and the back side cabinet 3b may be a resin molded product or a metal molded product, but in this embodiment, the front side cabinet 3a is made of a lightweight and highly rigid material such as a magnesium alloy. A display cover 9 made of an acrylic plate or a glass plate is covered from the front side with the display 2 including the display substrate 2a fitted in the front cabinet 3a. A rear display opening 6 for displaying time and the like is formed above the rear cabinet 3b.

  As shown in FIG. 2, the fixed housing 5 has an operation unit 7 for operating various functions of the cellular phone 1, and function keys 7a and character keys 7b are arranged on the front side. The characters drawn on these keys 7a and 7b are drawn so as to be easy to read when the stationary housing 5 is held vertically. A main board (not shown) is built in the back side of these keys 7a and 7b. As shown in FIG. 5, a rectangular battery cover 8 is provided on the back side of the fixed housing 5, and a battery (not shown) is built therein. Further, a camera function may be provided in the fixed housing 5, and a simple camera may be provided in the rotation housing 3. In addition, a TV tuner (not shown) is built in the rotation-side casing 3 or the fixed-side casing 5 and can receive TV.

  The rotation-side housing 3 is rotated clockwise from the vertically long state shown in FIG. 4 to the horizontally long state shown in FIG. 4 by the rotation support mechanism 10 and counterclockwise from the horizontally long state to the vertically long state. It is supported rotatably so that it can return to its original position. And the rotation side housing | casing 3 is comprised so that it may rotate, keeping a predetermined distance with the hinge part 4 (hinge boss | hub parts 17a and 18a and the bulging part 5a mentioned later). For this reason, it is not necessary to round the corners of the rotation-side casing 3, and the display 2 is formed large. Further, as shown in FIG. 4, the rear side of the fixed-side housing 5 can be placed on a placement surface such as a desktop with the rotation-side housing 3 in a horizontally long state and an open state.

  As shown in FIGS. 11-16, the rotation support mechanism 10 is provided with the support plate 16 as a rotation support mechanism main body. The support plate 16 is made of, for example, a stainless steel plate, and the lower end of the support plate 16 includes a pair of leg portions 16a and 16b extending downward (on the hinge portion 4 side).

  A first supported portion 11 and a second supported portion 12 are arranged at a predetermined interval on the back surface of the front side cabinet 3a. For example, the 1st supported part 11 and the 2nd supported part 12 are protrudingly provided from the back surface at the time of shaping | molding of the front side cabinet 3a, and consist of the boss | hub shape provided with the screw holes 11a and 12a in the center, respectively.

  And the rotation support mechanism 10 is provided with the 1st link member 31, and this 1st link member 31 consists of a stainless steel plate with which both ends were rounded, for example, and the through-hole 31a is formed in both ends, respectively. By fastening a screw hole 11a of the first supported portion 11 of the rotation side housing 3 through a screw (not shown) through a through hole 31a at one end of the first link member 31, one end of the first link member 31 is connected to the first covered member. The support part 11 is rotatably connected. The other end of the first link member 31 is rotatably connected to the first support portion 13 by caulking a pin or the like (not shown) in the through hole 13a of the first support portion 13 formed in the support plate 16. Yes. The first support portion 13 is disposed at the left and right middle lower portions of the rotation-side housing 3 when viewed from the back. Accordingly, as indicated by a two-dot chain line in FIG. 11 and the like, the first link member 31 draws an arcuate first rotation locus L1 around the through hole 13a of the first support portion 13. .

  The rotation support mechanism 10 includes a second link member 32. The second link member 32 is made of, for example, a stainless steel plate having a U shape with both ends rounded and a middle portion cut out. Each of the through holes 32a is formed. One end of the second link member 32 is rotatably connected to the second supported portion 12 by fastening the second through-hole 32a to the second supported portion 12 of the rotation side housing 3 through a screw (not shown). Yes. The other end of the second link member 32 is rotatably connected to the second support portion 14 by caulking a pin or the like (not shown) in the through hole 14a of the second support portion 14 formed in the support plate 16. Yes. The second support portion 14 is disposed at a position away from the first support portion 13, that is, at the upper right and lower middle of the rotation side housing 3 when viewed from the back. Accordingly, as shown by a two-dot chain line in FIG. 11 and the like, the second link member 32 draws an arcuate second rotation locus L2 around the through hole 14a of the second support portion 14. . For this reason, an opening 16c cut out in an arc shape so as to avoid the second rotation locus L2 is formed on the right side of the support plate 16. Further, as shown in FIG. 15, in the horizontally long state, the upper end of the second rotation locus L2 protrudes upward from the upper side of the rotation side housing 3 in the horizontally long state. And the 1st rotation locus L1 of the 1st supported part 11 and the 2nd rotation locus L2 of the 2nd supported part 12 cross | intersect. In addition, the connection method of the 1st and 2nd link members 31 and 32 is not specifically limited, For example, the 1st and 2nd supported parts 11 and 12 are comprised only by the screw holes 11a and 12a, and the 1st and 2nd You may project the boss | hub part in the link members 31 and 32 side toward the front side cabinet 3a.

  On the other hand, the second link member 32 is provided with a torsion coil spring 33 as an urging mechanism for assisting the rotational movement of the rotary housing 3. One end of the torsion coil spring 33 is connected to a first spring support portion 34 provided on the support plate 16, and the other end is connected to a second spring support portion 35 provided on the second link member 32. The first spring support portion 34 is disposed near the upper end of the opening 16 c of the support plate 16, and the second spring support portion 35 is disposed on the second supported portion 12 side of the second link member 32. For example, the first spring support portion 34 and the second spring support portion 35 have a pin shape, and rotatably support annular portions (not shown) formed at both ends of the torsion coil spring 33, respectively. As shown in FIGS. 11 and 15, the torsion coil spring 33 has a weak tensile force (a force for closing a pair of linear portions) when the rotation-side housing 3 is in a vertically long state or a horizontally long state, and is shown in FIG. Thus, it is set as the structure by which a tensile force is stored when the angle of a linear part opens most.

  Between the 2nd spring support part 35 and the 2nd support part 14 side in the 2nd link member 32, ie, the longitudinal direction middle part of the 2nd link member 32, it has the shape where it was bent in the shape of a substantial U, A cutout 36 is formed in the substantially U-shaped portion. As shown in FIG. 15, the cutout 36 prevents the second link member 32 and the second spring support portion 35 from contacting each other.

  As shown in FIGS. 1 to 10, the support plate 16 and the hinge part 4 are sandwiched between a front-side hinge part casing 17 and a rear-side hinge part casing 18 that are divided in the thickness direction. The front-side hinge housing 17 has left and right hinge bosses 17a constituting the hinge part 4, and decorative side parts 17b extending upward from the hinge bosses 17a and covering the left and right side surfaces of the support plate 16, respectively. The side is covered with a metal decorative thin plate 19. Similarly, the back-side hinge housing 18 has left and right hinge bosses 18 a that constitute the hinge 4, and the back side is covered with a metal decorative thin plate 19. The pair of front and back decorative thin plates 19 are formed with a plurality of ridges 19 a extending vertically or obliquely, and each is provided with a screw insertion hole 19 b for fixing the support plate 16. Further, a screw insertion hole 19c for fixing the front and back decorative thin plates 19 to each other is formed at the upper left position when viewed from the back. Then, in a state where the support plate 16 is sandwiched between the front hinge housing 17 and the rear hinge housing 18, the screw (through the screw insertion hole 16 d of the support plate and the screw insertion holes 19 b and 19 c of the decorative thin plate 19 are screwed ( The support plate 16 is connected to the hinge portion 4 by fastening (not shown). The first and second link members 31 and 32 are located above the decorative thin plate 19 and do not pass through the movement opening 25.

  As shown in FIG. 2 and the like, the hinge portion 4 includes left and right outer hinge boss portions 17a and 18a, and a bulging portion 5a formed on the upper side of the stationary housing 5 and sandwiched between the hinge boss portions 17a and 18a. ing. The pair of extension portions 16a and 16b of the support plate 16 are disposed in the hinge boss portions 17a and 18a, respectively. As shown in FIG. 16, the right outer end portion 4b of the hinge shaft 4a is fixed to the right extension portion 16a as viewed from the rear side so as not to rotate. The left end portion 4c of the hinge shaft 4a is inserted through the bulging portion 5a of the stationary housing 5 and is fixed so as not to rotate. The hinge shaft 4a includes an urging spring 4d, and is configured such that the rotation-side casing 3 easily opens with respect to the fixed-side casing 5 by the urging force of the urging spring 4d. A signal line 20 that electrically connects the display substrate 2a and the main substrate passes through the left hinge bosses 17a and 18a when viewed from the back side. The signal line 20 is connected to the decorative thin plate 19 on the front and back sides. It is protected so as not to be damaged when the rotation side housing 3 is rotated.

  As shown in FIG. 1 and the like, a movement opening 25 that allows the rotation support mechanism 10 to move is formed in the middle in the thickness direction on the side surface of the rotation-side housing 3. This moving opening 25 is formed at the edge of the rear surface side cabinet 3b on the dividing surface 3c side. When viewed from the back side, the opening for movement 25 is formed in an L-shape so as to straddle a lower opening 25a disposed on the lower side in a vertically long state and a side opening 25b disposed on the left side. . As shown in FIGS. 1 and 10, the movement opening 25 is covered with a side shielding member 40 and a lower shielding member 41 that open and close in accordance with the movement of the rotation support mechanism 10.

  As shown in FIGS. 17 and 18, the side shielding member 40 includes a side shielding member main body 40a that closes the side opening 25b, and is supported so as to be rotatable about a rotation fulcrum 40b. A spring accommodating portion 40c is formed inside the side shielding member main body 40a. A coil spring 40d is accommodated in the spring accommodating portion 40c. The side shield member main body 40a is urged by the coil spring 40d in a direction to close the side opening 25b. As shown in FIG. 11, the rotation end 40 e is accommodated in the recess 17 d of the upper end 17 c of the front-side hinge housing 17 in a vertically long state.

As shown in FIGS. 19 to 21, the lower shielding member 41 has an L shape, and has a lower appearance portion 41 a that shields the lower opening 25 a and a part of the side opening 25 b that is shorter than the lower appearance portion 41 a. Side appearance part 41b which shields the above. A tapered portion 41c is formed at the tip of the lateral appearance portion 41b. A leaf spring 43 is connected to the lower appearance portion 41a. The leaf spring 43 includes an embedded portion 43a molded in the lower external appearance portion 41a and a seesaw portion 43b accommodated in the lower end of the front side cabinet 3a. The embedded portion 43a and the seesaw portion 43b are connected to each other. It is connected only at 43c. The seesaw portion 43b is not coupled to the lower end of the front side cabinet 3a, and is housed so as to move freely within the lower end of the front side cabinet 3a. The seesaw portion 43b can swing like a seesaw by a triangular seesaw fulcrum 41d molded inside the lower external appearance portion 41a. With this configuration, as the rotation support mechanism 10 rotates, the lateral appearance portion 41b that is in contact with the taper portion 41c is gradually pressed in the thickness direction of the rotation-side housing 3 and rotates. When the lower appearance portion 41a side is pressed, the rotation support mechanism 10 is configured to pass smoothly by swinging around the connecting portion 43c. After passing through the rotation support mechanism 10, it is pushed back by the leaf spring 43 to again close a part of the lower opening 25a and the side opening 25b. The lower shielding member 41 also looks good if it is the same material and the same color as the back side cabinet 3b. As shown in FIG. 15 and the like, the lower shielding member 41 is covered with the rear cover 42 on the back side so as not to jump out from the front side cabinet 3a.

  With this configuration, in the vertically long state shown in FIGS. 1 and 2, the side opening 25b is closed by the decorative side surface portion 17b and the side shielding member 40, and the support plate 16 and the front surface are provided in the lower opening 25a. The lower side of the side hinge part housing | casing 17 and the back side hinge part housing | casing 18 is accommodated. In the horizontally long state shown in FIG. 10, the support plate 16, the front-side hinge housing 17 and the rear-side hinge housing 18 are accommodated in a part of the side opening 25b, and the remaining portion of the side opening 25b and the lower opening are opened. 25a is closed by a lower shielding member 41.

-Action-
Next, the operation of the mobile phone 1 according to the present embodiment will be described.

  First, as shown in FIG. 1, when the mobile phone 1 is not used or in a standby state, the rotation-side housing 3 and the fixed-side housing 5 are in a folded state. At this time, the rotation support mechanism 10 is accommodated in the movement opening 25 of the rotation side housing 3. That is, the side opening 25b is covered with the side shielding member 40 and the decorative side surface portion 17b, and the surface of the rotation side housing 3 looks almost continuous. Therefore, the rotation support mechanism 10 does not protrude, and at first glance, the rotation support mechanism 10 looks like a normal foldable mobile phone 1 without the rotation support mechanism 10 and looks good.

  As shown in FIG. 2, when the rotation-side housing 3 is opened with respect to the fixed-side housing 5, the display 2 and the operation unit 7 appear. When a normal call or mail transmission / reception is performed, the display 2 is set in a vertically long state and used while inputting keys on the operation unit 7. At this time, as shown in FIG. 11, the angle between the pair of linear portions of the torsion coil spring 33 is small, and the second housing member 32 is pulled downward by a relatively weak force so that the rotation-side housing 3 does not wobble. Hold on.

  On the other hand, when viewing a horizontally long image such as when viewing digital terrestrial television broadcasting or connecting to the Internet, the user rotates the display 2 to switch from the vertically long state to the horizontally long state.

  First, as shown in FIG. 3, the user moves the lower end side corner portion 2 b of the display 2 from the surface while resisting the tensile force of the torsion coil spring 33 in the direction of opening the angle between the pair of linear portions of the torsion coil spring 33. Rotate clockwise to see. At this time, as shown in FIGS. 11 and 12, the first supported member 11 side of the first link member 31 located at the left end of the first rotation locus L1 as viewed from the back of the mobile phone 1 gradually becomes the first. The second supported member 12 side of the second link member 32 moved to the right side on the rotation locus L1 and located at the middle of the second rotation locus L2 moves to the upper end side of the second rotation locus L2. At this time, the decorative side surface portion 17b pushes down the lower shielding member 41, so that the rotation of the rotation side housing 3 is not hindered. The side shielding member 40 rotates together with the rotation-side housing 3 by being regulated so as not to jump out from the movement opening 25. As shown in FIGS. 3 and 7, the rotation support mechanism 10 coming out from the movement opening 25 is covered with the decorative thin plate 19 at the front and back, so that it looks good.

  When the rotation-side housing 3 further rotates, as shown in FIG. 13, the first supported portion 11 reaches the left and right center of the first rotation locus L1, and at the same time, the second supported portion 12 is the upper end of the second rotation locus L2. To reach. At this time, since the upper end portion 17c of the front-side hinge housing 17 pushes in the rotation end 40e, the side shielding member 40 rotates and the torsion coil spring 33 is elastic to try to close the pair of linear portions. It will be in the state which stored energy most.

  Next, when the rotation-side casing 3 is further rotated, the torsion coil spring 33 pulls the second link member 32 to return to the original state, so that the rotation-side casing 3 is gradually rotated by the tensile force of the torsion coil spring 33. Then, it is switched to the horizontally long state shown in FIG. At this time, as shown in FIGS. 13 to 15, the second supported portion 12 that is at the upper end of the second rotation locus L2 as viewed from the back of the mobile phone 1 moves to the lower end of the second rotation locus L2, The first supported portion 11 located at the center of the first rotation locus L1 moves to the right end of the second rotation locus L2. Since the torsion coil spring 33 exerts a tensile force in the direction in which the second link member 32 is rotated downward, the horizontally long rotation-side casing 3 does not wobble.

  As described above, the first supported portion 11 of the display display 2 moves while drawing the arcuate first rotation locus L1 in the vertical direction with respect to the support plate 16 by the rotation support mechanism 10, and at the same time, 2 The supported part 12 moves while drawing an arcuate second rotation locus L2 in the left-right direction.

  The present embodiment is greatly characterized in that in the horizontally long state shown in FIG. 15, the upper end of the second rotation locus L2 protrudes from the upper side of the rotation-side housing 3 that is horizontally long. That is, in the conventional structure in which the guide pins are slid into the guide grooves, the guide grooves cannot be crossed, but in the present embodiment, the first and second link members 31, Since the rotation-side casing 3 is rotatably supported by 32, the degree of freedom in designing the first rotation locus L1 and the second rotation locus L2 is increased. As a result, the second rotation locus L2 can be brought as close as possible to the first rotation locus L1, and both the loci 11 and 12 intersect. Moreover, even if the upper end of the second rotation locus L2 is arranged above the upper side of the rotation-side casing 3 in the horizontally long state, the support plate 16 does not need to be provided with a guide groove. It is not necessary to secure a space for the plate 16, and the support plate 16 is downsized.

  In addition, although the torsion coil spring 33 rotates with the rotation of the rotation-side casing 3, the notch 36 is formed in the second link member 32, so that the notch 36 and the second spring support portion 35 in the horizontally long state are in contact with each other. Contact is avoided. For this reason, the rotation angle of the second link member 32 can be increased.

  6-10, the rotation support mechanism 10 moves while gradually pushing the side shielding member 40 and the lower shielding member 41, and after the movement, the side shielding member 40 and the lower shielding member are moved. 41 gradually returns to the original position.

  In the present embodiment, since the rotation-side casing 3 is rotatably supported by the support plate 16 by the first and second link members 31 and 32, the rattling in the thickness direction of the rotation-side casing 3 is particularly significant. However, since the rotation support mechanism 10 always moves in the movement opening 25, the rotation side housing 3 is only wobbled within the clearance with the movement opening 25 while the rotation side housing 3 is rotating. Even if an unexpected impact is applied to the housing 3, the load is transmitted to the periphery of the movement opening 25, so that the load is prevented from concentrating only on the rotation support mechanism 10, and the rotation support mechanism 10 is not easily damaged. .

  Further, the torsion coil spring 33 facilitates the rotation of the rotation-side casing 3 and enables one-handed rotation operation, and the rotation-side casing 3 is stable in a horizontally long state or a vertically long state. In addition, since the rotation side housing 3 is rotatably supported by the support plate 16 by the first and second link members 31 and 32, it is not necessary to slide the guide pin into the guide groove as in the prior art. The frictional resistance is greatly reduced. For this reason, since the rotation assist effect of the torsion coil spring 33 is increased, the rotation-side casing 3 moves smoothly even if the tensile force of the torsion coil spring 33 is small. Therefore, the coil portion of the torsion coil spring 33 is not enlarged, and the foldable mobile phone 1 can be made compact.

  Further, the lower end side corner portion 2b is guided and supported so as to move along a trajectory that maintains a certain gap with the hinge portion 4. For this reason, the display display 2 does not interfere with the hinge portion 4 even if the lower end of the display display 2 is not rounded along the radius centered on the support shaft as in the conventional case. For this reason, it is not necessary to round the corners of the rotation-side housing 3, the display display 2 can be enlarged, and the image is easy to see.

  Even in the horizontally long state shown in FIG. 4, the central portion in the left-right direction of the display display 2 is located substantially at the center in the left-right direction of the rotation-side housing 3. In this state, the rotation-side casing 3 in the horizontally long state can be viewed by holding the fixed-side casing 5 in the hand. Further, by placing the back side of the fixed-side housing 5 on a desk in a state where the rotation-side housing 3 is in a horizontally long state and opened, a TV image is displayed on the display device 2 in the horizontally long state for a long time. Can be viewed.

  Further, after use, contrary to the above, the display display 2 returns to the vertically long state by rotating the lower right corner portion 2b on the right side of the display 2 counterclockwise when viewed from the surface. Also in this case, the torsion coil spring 33 assists the rotation of the rotation side housing 3.

  And the rotation side housing | casing 3 and the stationary side housing | casing 5 are folded and it is set as the standby state shown in FIG.

  As described above, according to the present invention, the first and second link members 31 and 32 support the rotation-side housing 3 on the support plate 16 so as to be rotatable from a vertically long state to a horizontally long state or from a horizontally long state to a vertically long state. By doing so, the rotating side housing 3 can be smoothly rotated and the mobile phone 1 can be made compact.

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

  That is, the shapes of the first link member 31 and the second link member 32 in the above embodiment are merely examples. By optimizing the shapes of the first link member 31 and the second link member 32, an optimal rotation trajectory of the rotation side housing 3 can be obtained. For example, in the above embodiment, the first rotation locus L1 and the second rotation locus L2 are made to intersect, but it is not always necessary to intersect.

  In the above embodiment, the torsion coil spring 33 is provided on the second link member 32 side. However, the torsion coil spring 33 may be provided on the first link member 31 side. In this case, the elastic energy may be stored as the angle between the pair of linear portions decreases.

  In the above embodiment, the display 2 is built in the rotation-side casing 3. However, even if the display display 2 is provided in both the rotation-side casing 3 and the fixed-side casing 5, the fixed-side casing 5 is provided. You may provide only in one of these. Further, in the above embodiment, the operation unit 7 is provided only in the fixed housing 5, but the display unit 2 may be provided in the fixed housing 5 only in the rotation housing 3. Further, the display 2 may be provided on the rotation-side casing 3, and a simple operation unit 7 including function keys or the like may be provided in part.

  Further, in the above-described embodiment, the rotation-side housing 3 is rotated clockwise from the front to the horizontal state by the rotation support mechanism 10 when viewed from the front, and is rotatable to return from the horizontal to the vertical state. Although supported, it may be rotated counterclockwise when viewed from the front from the vertically long state to the horizontally long state. In that case, the rotation support mechanism 10 and the movement opening 25 may be disposed so as to be reversed left and right.

  In the above embodiment, the mobile terminal is the foldable mobile phone 1, but it may be a so-called straight-type mobile terminal in which the fixed housing 5 is connected to the rotating housing 3 so that it cannot be folded and opened. In that case, the rotation support mechanism 10 may be directly connected to the stationary housing 5. Even in this straight type portable terminal, the rotation support mechanism 10 can be accommodated in the movement opening 25 of the rotation-side casing 3, so that the appearance is good.

  Further, instead of the rotation support mechanism 10 moving through the movement opening 25 in the rotation side housing 3, the rotation support mechanism 10 is exposed to the back side of the rotation side housing 3, and You may make it rotate on the back side.

  In the above embodiment, the mobile terminal is a foldable mobile phone, but it may be a PHS, PDA, PC, mobile tool, electronic dictionary, calculator, game machine, or the like.

  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.

1 Mobile phone (mobile terminal)
DESCRIPTION OF SYMBOLS 3 Rotation side housing | casing 10 Rotation support mechanism 11 1st supported part 12 2nd supported part 13 1st support part 14 2nd support part 16 Support plate (support mechanism main body)
25 opening for movement 31 first link member 32 second link member 33 coil spring (biasing mechanism)
34 1st spring support part 35 2nd spring support part 36 Notch L1 1st rotation locus L2 2nd rotation locus

Claims (2)

A mobile terminal comprising: a rotation-side housing; and a rotation support mechanism that rotatably supports the rotation-side housing from a vertically long state to a horizontally long state or from a horizontally long state to a vertically long state,
The rotation support mechanism is
A rotation support mechanism body;
A first link member having one end rotatably connected to the first supported portion of the rotation-side housing and the other end rotatably connected to the first support portion of the rotation support mechanism main body;
A position where one end is rotatably connected to a second supported portion at a position away from the first supported portion in the rotation side housing, and the other end is separated from the first support portion in the rotation support mechanism main body. and a second link member rotatably coupled to the second support portion in,
A mobile terminal characterized in that a rotation locus of the first supported portion and a rotation locus of the second supported portion intersect . A mobile terminal comprising: a rotation-side housing; and a rotation support mechanism that rotatably supports the rotation-side housing from a vertically long state to a horizontally long state or from a horizontally long state to a vertically long state,
The rotation support mechanism is
A rotation support mechanism body;
A first link member having one end rotatably connected to the first supported portion of the rotation-side housing and the other end rotatably connected to the first support portion of the rotation support mechanism main body;
A position where one end is rotatably connected to a second supported portion at a position away from the first supported portion in the rotation side housing, and the other end is separated from the first support portion in the rotation support mechanism main body. A second link member rotatably connected to the second support part at
At least one of the first link member and the second link member is provided with an urging mechanism for assisting the rotational movement of the rotation side housing ,
The biasing mechanism is a torsion coil spring having one end connected to a first spring support portion provided on the rotation support mechanism main body and the other end connected to a second spring support portion provided on the second link member ,
A notch is formed between the second spring support portion and the second support portion of the second link member to avoid interference with the second spring support portion when the second link portion rotates. A portable terminal characterized by being.

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