JP2009111694A - Rotating hinge structure and portable electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotating hinge structure capable of rotating a display part both to the right and left from a vertical state or a horizontal state to get to the horizontal state or the vertical state with a simple component structure, and to provide a portable electronic device. <P>SOLUTION: The rotating hinge structure can mutually switch the display part 4 between the vertical state and horizontal state with respect to a first casing 1 by rotating the display part 4 and the first casing 1 relatively in a right or left direction. The first casing 1 includes: a rotor housing 5 having a vertical groove 54 and upper and lower inner wall surfaces 511, 512 for restricting rotation of more than a predetermined angle of the display part 4; a rotor 6 connected to the display part 4 and connected to a pin 7 communicated with the vertical groove 54, and moving the pin 7 in the vertical groove 54, and freely rotating in the right or left direction with respect to the rotor housing 5; and a spring 8 for connecting the rotor 6 and the rotor housing 5, and for biasing the rotor 6 with respect to the vertical groove 54 so as to hold the display part 4 in the vertical or horizontal state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a rotary hinge structure and a portable electronic device in which a display unit can be switched between a vertically long state and a horizontally long state.

In a foldable mobile phone in which a second casing provided with a display unit and a second casing provided with an operation unit are foldably connected by a hinge unit, the display unit is connected to the first casing. In the vertically long state, the second guide pin moves along the longitudinal guide groove, and the second guide pin moves along the left and right direction guide groove so that it rotates in the right direction and is switched to the horizontally long state. (For example, refer to Patent Document 1).
In addition, there is a display unit that is rotated 90 degrees to the left or right and the display state is automatically changed according to the rotation (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 2006-21576 JP-A-9-159467

However, the foldable mobile phone described in Patent Document 1 only considers right rotation, and has a problem that it cannot be rotated left according to the dominant hand. Moreover, in the said patent document 2, although it described that the display part could rotate both right and left, it is not disclosed what the mechanism is.
The present invention has been made in view of the above circumstances, and a rotating hinge structure capable of turning a display unit left and right from a vertically long state or a vertically long state to a horizontally long state or a vertically long state with a simple component configuration. And it aims at providing a portable electronic device.

In order to solve the above problems, the invention of claim 1 includes a display unit,
A first housing provided with the display unit,
The display unit and the first housing rotate relative to each other in the right direction or the left direction, so that the display unit is moved between the vertically long state and the horizontally long state with respect to the first housing. A switchable rotary hinge structure,
The first housing is
A rotation support portion having a vertical groove extending vertically and a rotation restriction portion for restricting rotation of the display portion by a predetermined angle or more;
The pin is connected to the display unit and connected to a pin connected to the vertical groove so that the pin moves in the vertical groove and is rotatable in the right direction or the left direction with respect to the rotation support unit. A cam member,
An elastic member that connects the cam member and the rotation support portion, and urges the cam member against the vertical groove so that the display portion maintains the vertically long state or the horizontally long state;
From the vertically long state or the horizontally long state, the pin moves in the vertical direction along the vertical groove by rotating the display unit in the right direction or the left direction against the biasing force of the elastic member. The cam member is restricted in rotation by the rotation restricting portion and is held in the horizontally long state or the vertically long state.

The invention of claim 2 is the rotary hinge structure according to claim 1,
The cam member is in contact with the rotation restricting portion when rotating in the right direction, and the second contact portion and the fourth contact portion are restricted in rotation when rotating in the left direction. A first contact portion and a third contact portion to be provided,
The first contact part and the third contact part do not contact the rotation restricting part when rotating in the right direction,
The second contact portion and the fourth contact portion do not contact the rotation restricting portion during the leftward rotation.

The invention of claim 3 is the rotary hinge structure according to claim 1 or 2,
The rotation restricting portion is provided with an engaging portion that engages with an outer peripheral surface of the cam member,
In the vertically long state and the horizontally long state, the outer peripheral surface of the cam member and the engaging portion are engaged with each other.

Invention of Claim 4 is a portable electronic device.
The rotary hinge structure according to any one of claims 1 to 3,
A second housing provided with an operation unit;
And a hinge portion that folds and connects the first housing and the second housing so as to be freely opened and closed.

  According to the present invention, the display unit can be rotated in either the right direction or the left direction with a simple component configuration, and switching between the vertically long state and the horizontally long state can be performed smoothly.

The best mode for carrying out the present invention will be described below with reference to the drawings. However, although various technically preferable limitations for implementing the present invention are given to the embodiments described below, the scope of the invention is not limited to the following embodiments and illustrated examples.
FIG. 1 shows a foldable mobile phone 100 as a portable electronic device to which the present invention is applied. The foldable mobile phone 100 includes a first housing 1 and a second housing 2 that have a hinge portion 3. It is connected via a foldable opening and closing. A key operation unit 21 is provided in the second casing 2, and a separate display unit 4 is provided in the first casing 1 via a rotating hinge structure.
FIG. 1A is a perspective view of a folded state in which the first casing 1 and the second casing 2 are folded and overlapped by the hinge portion 3, and FIG. 1B is a perspective view of the first casing 1 and the second casing 2. The perspective view which made the display part 4 the vertically long state in the state which opened the housing | casing 2 by the hinge part 3, (c) is the perspective view which turned the display part 4 to the left direction from the state of (b), and made the horizontally long state FIG.

FIG. 2 is an exploded perspective view in which the display unit 4 and the second housing 2 are disassembled as a configuration of an embodiment of the rotary hinge structure, and FIG. 3 is a front case 11 of the display unit 4 and the first housing 1. 3 is an exploded perspective view of a rotor 6. FIG.
The first housing 1 includes a front case 11 positioned on the inner side (the key operation unit 23 side) when folded and a rear case 12 positioned on the outer side. The front case 11 has a flat plate shape, and the rear case 12 has a substantially box shape that is recessed outward. And the 1st housing | casing 1 is comprised by joining the front case 11 and the rear case 12 mutually.
In a space formed by joining the front case 11 and the rear case 12, a rotor housing (rotation support portion) 5 and a rotor (cam member) that enable the display unit 4 to rotate on the surface of the front case 11. 6 is housed. Further, in the space, wiring to the display unit 4 (see an arrow in FIG. 8), a speaker (not shown), and the like are accommodated.
The second housing 2 also includes a front case located inside when folded and a rear case located outside, and an operation key hole group 23 exposing the operation key group 22 is formed in the front case. In the space formed by joining the front case and the rear case, a circuit board provided with an operation key group 22 and a main processor (not shown) for controlling the entire folding cellular phone 100 is supported. A case, a key sheet, a microphone, a battery, a camera unit, and the like are accommodated.

4 is an exploded perspective view of the rotor 6, the rotor housing 5, the pin 7 and the spring 8. FIG. 5A is a view of the rotor 6 and the rotor housing 5 fixed by the pin 7 and viewed from the surface side of the rotor housing 5. FIG. 5 (b) is a cross-sectional view taken along the cutting line VV, and FIG. 5 (c) is an enlarged view of the main part of FIG. 5 (b).
6 is a perspective view when the rear case 12 of the first housing 1 is removed with the foldable mobile phone 100 folded, and FIG. 7 is a plan view of FIG. In the following description, the vertical direction and the horizontal direction will be described with reference to FIG.
The rotor housing 5 is a mountain-shaped plate that protrudes upward, and a recess 51 is formed on the surface thereof. The planar shape of the recess 51 is formed in a mountain shape that protrudes upward along the outer shape of the rotor housing 5 except for its lower end. The inner wall surface (rotation restricting portion) 511 at the lower end portion of the inner wall surface forming the recess 51 is formed in an arc shape so as to protrude upward. Then, when rotating in the right direction, rotation is regulated by a second contact portion 62 of the rotor 6 described later coming into contact with the lower end inner wall surface 511, and the upper end inner wall surface (rotation regulating portion) 512 is The rotation is regulated by contact of the four contact portions 64. Further, when rotating in the left direction, the rotation is regulated by the first contact portion 61 coming into contact with the lower end inner wall surface 511, and the rotation is caused by the third contact portion 63 coming into contact with the upper end inner wall surface 512. Is regulated.
Further, the lower end inner wall surface 511 is an engaging portion 511 a that engages with the outer peripheral surfaces 65, 66, and 67 of the rotor 6. Further, the first contact portion 61 of the rotor 6 is inserted into the left inner wall surface of the inner wall surface forming the recess 51 and excluding the upper end inner wall surface 512 when rotating in the right direction. A slit portion 52 into which the fourth contact portion 64 is inserted when rotating in the direction is formed. Further, the right wall portion facing the slit portion 52 has a second contact portion 63 when the third contact portion 63 of the rotor 6 rides on the surface when rotating in the right direction, and the second wall portion when rotating in the left direction. The height of the contact portion 62 is lower than the other wall portions (the left wall portion, the lower end wall portion, and the upper end wall portion) so that the contact portion 62 can get on and move, and a stepped portion 53 is formed. . The length of the stepped portion 53 and the length of the slit portion 52 are substantially equal.
In addition, a vertically long vertical groove 54 that allows the rotor 6 to be rotated by the movement of a pin 7 described later is formed on the bottom surface at the substantially center of the recess 51.
Note that screw holes 55 and 55 for fixing the rotor housing 5 and the front case 11 with screws N1 and N1 are formed on the left and right sides of the upper end portion of the rotor housing 5, respectively. The lower end of the rotor housing 5 has screw holes 56a for fixing the rotor housing 5 and the front case 1 with screws N2, and screw holes 56b and 56b for fixing the front case 11 and the rear case 12 with screws N3 and N3. Is formed.

The rotor 6 has a substantially X-shaped plate shape in plan view, and extends to the lower left, lower right, upper right, and upper left, respectively, and forms an inner wall surface that forms the recess 51 of the rotor housing 5 (specifically, an upper end that forms the recess 51). A first contact portion 61, a second contact portion 62, a third contact portion 63, and a fourth contact portion 64 that are restricted from rotating by contacting the inner wall surface 512 or the lower inner wall surface 511). Yes. An outer peripheral surface 65 between the first contact portion 61 and the fourth contact portion 64 is formed in an arc shape in the same shape along the engagement portion 511a of the rotor housing 5, and can be engaged with the engagement portion 511a. It is said that. The outer peripheral surface 66 between the second contact portion 62 and the third contact portion 63 and the outer peripheral surface 67 between the first contact portion 61 and the second contact portion 62 are also engaged with the rotor housing 5. It is formed in an arc shape in the same shape along the portion 511a, and can be engaged with the engaging portion 511a. Therefore, when the display unit 4 is rotated to the right or left to be in the horizontally long state, the outer peripheral surface 65 or the outer peripheral surface 66 of the rotor 6 is engaged with the engaging unit 511a so that the rotational movement is stopped. It has become. Even when the display unit 4 is in the vertically long state, the outer peripheral surface 67 of the rotor 6 is engaged with the engaging unit 511a, and the rotational movement is stopped. As described above, the rotor 6 is restricted by the engaging portion 511a from rotating 90 degrees or more in the right direction and the left direction from the state shown in FIG. 5 (a).
The first to fourth contact portions 61 to 64 (points Ma, Mb, Mc, Md) are displayed as the center point A on two diagonal lines of the display unit 4 shown in FIG. It is located at a midpoint between the points P1 to P4 which are corner portions of the portion 4.

Further, a pin hole 68 into which the pin 7 is inserted is formed in the approximate center of the rotor 6, and screw holes 69, 69,... For fixing the rotor 6 and the display unit 4 are formed below the pin hole 68. Is formed. The screw N4 inserted through the screw hole 69 is fixed by a boss 41 (see FIG. 3) fixed in advance on the display unit 4 side.
The rotor 6 and the rotor housing 5 are fixed to each other by inserting the pin 7 through the vertical groove 54. The pin 7 has a fixing plate 71 fixed on the back surface of the rotor housing 5 so as not to come out of the vertical groove 54, and a pin portion 72 formed on the fixing plate 71 and inserted into the vertical groove 54 and the pin hole 67 of the rotor 6. And a locking portion 73 that is formed at the tip of the pin portion 72 and locks into the pin hole 68. Therefore, the pin portion 72 is fixed by being inserted into the vertical groove 54 and the pin hole 67 and being locked to the pin hole 68 by the locking portion 73. The back surface of the fixed plate 71 and the back surface of the rotor housing 5 are connected to the left and right by springs 8 and 8 respectively, and always urge the pin 7 downward in the vertical groove 54. That is, one end 81 of the spring 8 is fixed to the back surface of the fixing plate 71 and the other end 82 is fixed to the back surface of the rotor housing 5.

FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG.
As shown by the arrows in FIG. 8, the wiring path to the display unit 4 is from the circuit board (not shown) provided in the second housing 2 via the hinge portion 3 to the first housing 1. It passes through the space between the rear case 12 and the front case 11, is inserted into the pin portion 72 of the pin 7, and is pulled out and connected to the display portion 4 side.

FIGS. 9A to 9C are diagrams showing the rotational movement of the rotor 6 when the display unit 4 is rotated clockwise. FIGS. 10A to 10C show the display unit 4. It is the figure which showed the rotational movement of the rotor 6 at the time of rotating to left direction.
First, an operation when the display unit 4 is rotated rightward will be described.
9A, the display unit 4 is in a vertically long state. At this time, the first contact unit 61 and the second contact unit 62 are in contact with a lower end inner wall surface 511 that forms the recess 51 of the rotor housing 5, and The outer peripheral surface 67 between the first contact portion 61 and the second contact portion 62 and the engaging portion 511a are engaged. The third contact portion 63 is in contact with the inner wall surface in the vicinity of the stepped portion 53, and the fourth contact portion 64 is in contact with the inner wall surface in the vicinity of the entrance of the slit portion 52. Thereby, the movement of the rotor 6 is stopped, and the display unit 4 is held in the vertically long state.
FIG. 9 (b) shows a state in the middle of rotating 90 degrees rightward from the state of FIG. 9 (a). When rotating rightward against the biasing force of the spring 8, the pin 7 is While moving to the upper end part of the longitudinal groove 54, the first contact part 61 is inserted into the slit part 52, and the second contact part 62 moves along the inner wall surface 511 of the lower end part. The third contact portion 63 rides on the stepped portion 53 and moves on the stepped portion 53, and the fourth contact portion 64 moves along the upper end inner wall surface 512. At this time, since the second contact portion 62 and the fourth contact portion 64 are in contact with the lower end inner wall surface 511 and the upper end inner wall surface 512, the movement of the rotor 6 is restricted thereby.
FIG. 9C shows a case where the display unit 4 is in the horizontally long state by further rotating in the right direction from the state of FIG. 9B. At this time, the pin 7 is moved to the lower end portion of the longitudinal groove 54 by the biasing force of the spring 8, the first contact portion 61 abuts against the inner wall surface of the slit portion 52, and the second contact portion 62 is the lower end portion inner wall surface. Move to the left end of 511. The third contact portion 63 moves to the right end portion of the lower end portion inner wall surface 511, and the fourth contact portion 64 contacts the inner wall surface of the step portion 53. Thereby, the movement of the rotor 6 is stopped, and the display unit 4 is held in the horizontally long state.

Next, an operation when the display unit 4 is rotated leftward will be described.
In FIG. 10 (a), the display unit 4 is held in a vertically long state as in FIG. 9 (a).
FIG. 10B shows a state in the middle of rotating 90 degrees to the left from the state of FIG. 10A. When the pin 7 is rotated counterclockwise against the biasing force of the spring 8, the pin 7 is While moving to the upper end part of the longitudinal groove 54, the first contact part 61 moves along the inner wall surface 511 of the lower end part, and the second contact part 62 rides on the step part 53 and moves on the step part 53. The third contact part 63 moves along the upper end inner wall surface 512, and the fourth contact part 64 is inserted into the slit part 52. At this time, since the first contact portion 61 and the third contact portion 63 are in contact with the lower end inner wall surface 511 and the upper end inner wall surface 512, the movement of the rotor 6 is restricted thereby.
FIG. 10 (c) shows a case where the display unit 4 is in the horizontally long state by further rotating leftward from the state of FIG. 10 (b). At this time, the pin 7 is moved to the lower end portion of the vertical groove 54 by the biasing force of the spring 8, and the first contact portion 61 is further rotated leftward from the state of FIG. Is in a horizontally long state. At this time, the pin 7 is moved to the lower end portion of the vertical groove 54 by the urging force of the spring 8, the first contact portion 61 is moved to the right end portion of the lower end inner wall surface 511, and the second contact portion 62 is a stepped portion. 53 abuts against the inner wall surface. The third contact portion 63 contacts the inner wall surface of the slit portion 52, and the fourth contact portion 64 moves to the left end portion of the lower end inner wall surface 511. Thereby, the movement of the rotor 6 is stopped, and the display unit 4 is held in the horizontally long state.

Here, the locus | trajectory in the 1st-4th contact parts 61-64 of the rotor 6 is demonstrated. 11A to 11C are diagrams showing the trajectories of the display unit 4 and the rotor 6, FIG. 11A is a case where the display unit 4 is in a vertically long state, and FIG. FIG. 11C shows a locus when the display unit 4 is rotated 90 degrees in the right direction. FIG. 11C shows a locus when the display unit 4 is rotated 90 degrees in the left direction. For example, in FIG. 11B, “Ma−45 °” indicates the position of the point Ma when the display unit is rotated 45 ° in the left direction.
11A to 11C, the first contact portion 61 of the rotor 6 is a point Ma, the second contact portion 62 is a point Mb, the third contact portion 63 is a point Mc, and a fourth contact portion 64. Is described as a point Md. The dotted line m is the center line in the horizontal direction of the display unit 4, the dotted line n is the vertical center line of the display unit 4, the point A is the intersection of the center line m and the center line n, and the circle C is the trajectory of the point Ma or the point Mb A circle and a point O indicate the center point of the circle C, a curve Q indicates the locus of the point Mc, and a curve R indicates the locus of the point Md. Point Ma is the midpoint between point A and point P1, point Mb is the midpoint between point A and point P2, point Mc is the midpoint between point A and point P3, and point Md is This is the midpoint between point A and point P4.
When rotating 90 degrees rightward from FIG. 11A, the point Mb moves 90 degrees to the left on the circumference of the circle C, and the point Md moves rightward on the curve Q.
When rotating 90 degrees to the left from FIG. 11A, the point Ma moves 90 degrees to the right on the circumference of the circle C, and the point Mc moves to the left on the curve R.
In this way, both the points Ma and Mb move on the circumference of the circle C centered on the point O, and both the points Mc and Md move along a line trajectory that is symmetric with respect to the center line m in the left-right direction. The point Ma and the point Mb, the point Mc and the point Md pass the same trajectory by the rotation in the right direction and the rotation in the left direction.

As described above, according to the embodiment of the present invention, the pin 7 is moved along the vertical groove 54 by rotating the display unit 4 rightward or leftward against the biasing force of the spring 8 from the vertically long state. Is moved in the vertical direction, and the first and third contact portions 61 and 63 of the rotor 6 or the second and fourth contact portions 62 and 64 form the recess 51 of the rotor housing 5 and the lower end inner wall surface 511 and the upper end. The rotation is restricted by contacting the inner wall surface 512, and thereafter, the outer peripheral surface 65 or the outer peripheral surface 66 of the rotor 6 is held in the horizontally long state by engaging with the engaging portion 511 a of the rotor housing 5. In addition, by rotating in the right direction or the left direction from the horizontally long state, the first and third contact portions 61 and 63 or the second and fourth contact portions 62 and 64 are placed in the lower end portion inner wall surface 511 and the upper end portion. The rotation is regulated by contacting the wall surface 512, and thereafter, the outer peripheral surface 67 of the rotor 6 is held in the vertically long state by engaging with the engaging portion 511a. In this way, the display unit 4 can be rotated in either the right direction or the left direction with a simple component configuration, and switching between the vertically long state and the horizontally long state can be performed smoothly.
The rotor 6 includes first to fourth contact portions 61 to 64, and the second and fourth contact portions 62 and 64 contact the lower end inner wall surface 511 and the upper end inner wall surface 512 when rotating in the right direction. The first contact portion 61 is inserted into the slit portion 52, and the third contact portion 63 rides on the stepped portion 53 and is brought into a free state without contacting the inner wall surfaces 511 and 512. The first and third contact portions 61 and 63 are in contact with the lower end portion inner wall surface 511 and the upper end portion inner wall surface 512 during rotation in the left direction, and the fourth contact portion 64 is inserted into the slit portion 52, The contact portion 62 rides on the step portion 53 and is brought into a free state without contacting the inner wall surfaces 511 and 512. As described above, one of the four contact portions 61 to 64 of the rotor 6 is in a point-symmetrical relationship with the pin 7 as a center and two sets of points are in contact with each other, and the other two points are in a free state. With the configuration, the rotation in the right direction or the left direction can be smoothly performed.
Further, the rotor housing 5 is provided with an engaging portion 511a that engages with the outer peripheral surfaces 65, 66, and 67 of the rotor 6, and when the rotor housing 5 is in the vertically long state or the horizontally long state, the rotor housing 5 is connected to any one of the outer peripheral surfaces 65, 66, and 67. Since the engaging part 511a is engaged, it can be stopped in the vertically long state and the horizontally long state, and the state can be reliably maintained.
The foldable mobile phone 100 can be opened and closed by folding the above-described rotary hinge structure, the second casing 2 provided with the operation key unit 23, and the first casing 1 and the second casing 2. And the hinge part 3 connected to the head, so that the operator can easily rotate and operate even when the operator is right-handed or left-handed.

In addition, this invention is not limited to the said embodiment, In the range which does not deviate from the summary, it can change suitably.
For example, the foldable mobile phone 100 is applied as the portable electronic device in the above embodiment, but the foldable mobile phone 100 is not limited to the foldable type, and the first casing 1 and the second casing 2 are slid relative to each other. Then, it may be configured to switch from the vertically long state to the horizontally long state by rotating rightward or leftward. In addition to the folding type and the sliding type, the present invention may be applied to a straight type mobile phone in which the display unit 4 and the operation key unit 23 are on the same plane.
In addition, it can be used for all portable electronic devices such as digital cameras, video cameras, PDAs, notebook computers, wearable computers, calculators, and electronic dictionaries.

Further, as a means for urging the display unit 4 and the rotor 6 downward, an elastic member such as rubber may be used in addition to the spring 8, and other specific detailed structures can be appropriately changed. Of course.
Further, the shape of the rotor may be a Y shape other than the X shape, and other shapes. In this case, the shape of the rotor housing may be changed in accordance with the shape of the rotor.

(a) is the perspective view of the folded state which folded the 1st housing | casing 1 and the 2nd housing | casing 2 by the hinge part 3, and overlapped, (b) is the 1st housing | casing 1 and the 2nd housing | casing. 2 is a perspective view in which the display unit 4 is in a vertically long state with the hinge 2 opened, and (c) is a perspective view in which the display unit 4 is rotated leftward from the state of (b) to be in a horizontally long state. is there. FIG. 2 is an exploded perspective view in which the display unit 4 and the second casing 2 are disassembled as a configuration of one embodiment of the rotary hinge structure. 4 is an exploded perspective view of the display unit 4, the front case 11 of the first housing 1, and the rotor 6. FIG. 3 is an exploded perspective view of a rotor 6, a rotor housing 5, a pin 7, and a spring 8. FIG. (a) is a plan view when the rotor 6 and the rotor housing 5 are fixed by pins 7 and viewed from the surface side of the rotor housing 5, and (b) is an arrow view when cut along the cutting line V-V. Sectional drawing, (c) is an enlarged view of the main part of (b). FIG. 3 is a perspective view when the rear case 12 of the first housing 1 is removed in a state in which the foldable mobile phone 100 is folded. FIG. 7 is a plan view of FIG. 6. It is arrow sectional drawing at the time of cut | disconnecting along the cutting line VIII-VIII of FIG. (a)-(c) is the figure which showed the rotational movement of the rotor 6 at the time of rotating the display part 4 to the right direction. (a)-(c) is the figure which showed the rotational movement of the rotor 6 at the time of rotating the display part 4 to left direction. (a)-(c) is the figure which showed the locus | trajectory of the display part 4 and the rotor 6, (a) is a case where the display part 4 is a vertically long state, (b) A trajectory when rotating 90 degrees in the direction, (c) shows a trajectory when rotating the display unit 4 90 degrees to the left.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st housing | casing 2 2nd housing | casing 3 Hinge part 4 Display part 5 Rotor housing (rotation support part)
6 Rotor (cam member)
7 pin 8 spring (elastic member)
21 Key operation part 54 Vertical groove 61 1st contact part 62 2nd contact part 63 3rd contact part 64 4th contact part 65,66,67 Outer peripheral surface 100 Folding-type mobile telephone 511 Lower end part inner wall surface (rotation regulation) Part)
512 inner wall surface of the upper end (rotation restricting part)
511a engaging portion

Claims (4)

A display unit;
A first housing provided with the display unit,
The display unit and the first housing rotate relative to each other in the right direction or the left direction, so that the display unit is moved between the vertically long state and the horizontally long state with respect to the first housing. A switchable rotary hinge structure,
The first housing is
A rotation support portion having a vertical groove extending vertically and a rotation restriction portion for restricting rotation of the display portion by a predetermined angle or more;
The pin is connected to the display unit and connected to a pin connected to the vertical groove so that the pin moves in the vertical groove and is rotatable in the right direction or the left direction with respect to the rotation support unit. A cam member,
An elastic member that connects the cam member and the rotation support portion, and urges the cam member against the vertical groove so that the display portion maintains the vertically long state or the horizontally long state;
From the vertically long state or the horizontally long state, the pin moves in the vertical direction along the vertical groove by rotating the display unit in the right direction or the left direction against the biasing force of the elastic member. The rotation hinge structure characterized in that the cam member is restricted in rotation by the rotation restricting portion and held in the horizontally long state or the vertically long state. The cam member is in contact with the rotation restricting portion when rotating in the right direction, and the second contact portion and the fourth contact portion are restricted in rotation when rotating in the left direction. A first contact portion and a third contact portion to be provided,
The first contact part and the third contact part do not contact the rotation restricting part when rotating in the right direction,
2. The rotating hinge structure according to claim 1, wherein the second contact portion and the fourth contact portion do not contact the rotation restricting portion when rotating in the left direction. The rotation restricting portion is provided with an engaging portion that engages with an outer peripheral surface of the cam member,
3. The rotary hinge structure according to claim 1, wherein an outer peripheral surface of the cam member and the engaging portion are engaged in the vertically long state and the horizontally long state. The rotary hinge structure according to any one of claims 1 to 3,
A second housing provided with an operation unit;
A portable electronic device comprising: a hinge portion that folds and connects the first housing and the second housing so as to be freely opened and closed.

Images