JP2010171764A - Rotation hinge and mobile device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide strength to a load in the peeling direction, to make appearance successful and to also make a rotating operation successful in a rotation hinge. <P>SOLUTION: The rotation hinge includes: two flat plates 4/5 having circular circumferences 4a/5a centering around the centers of rotation; an axis 6 which freely rotatably connects the centers of rotation of the two flat plates 4/5; two sliding parts 4b/5b provided so as to sandwich the circular circumferences 4a/5a of one flat plate 4/5 in the circular circumferences of the other flat plate 4/5 so as to mutually slide along the circular circumferences 4a/5a of one flat plate 4/5 in relative rotation of the two flat plates 4/5; stoppers 4c/4b/5b which regulate rotation movement of the two flat plates 4/5; and an elastic member 11 which controls rotation force according to rotation of the two flat plates 4/5. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a rotary hinge capable of rotating a display unit vertically and horizontally with respect to an operation unit, and a portable device including the rotary hinge.

  Some portable information terminals are provided with a rotating hinge that can rotate the display unit vertically and horizontally with respect to the operation unit, and those provided with a rotating hinge formed by two fan-shaped members supported at two points are disclosed in Patent Document 1. ing. Further, Patent Document 2 discloses a rotating hinge that engages two arc-shaped grooves of the display unit and two pins of the operation unit with each other.

JP 2006-19925 A Japanese Patent Laid-Open No. 2007-60059

However, these rotary hinges have problems in strength and appearance.
That is, in the rotation hinge of Patent Document 1, when the display unit is in the horizontally long state, since the two support portions are positioned in the horizontal direction, the load in the direction in which the horizontally long display unit is peeled off from the operation unit. There is a weak problem.
In addition, the rotating hinge of Patent Document 2 has a problem in that the arc-shaped groove on the back surface of the display unit is exposed, so that dust is easily mixed and the appearance is not good.
Furthermore, none of the rotating hinges has a rotating operation force assist mechanism, and the rotating operation is inconvenient.

  An object of the present invention is to provide a rotary hinge with strength against a load in the peeling direction, good appearance, and good rotation operation.

  In order to solve the above-described problems, the invention according to claim 1 includes two flat plates having an arcuate outer periphery centering on the rotation center, and a shaft that rotatably connects the rotation centers of the two flat plates. When the two flat plates rotate relative to each other, the other flat plate is provided so as to sandwich the circular arc outer periphery of the one flat plate so as to slide along the circular arc outer periphery of the one flat plate. The rotary hinge includes two slide portions, a stopper that restricts rotational movement of the two flat plates, and an elastic member that controls rotational force according to the rotation of the two flat plates.

  A second aspect of the present invention is the rotary hinge according to the first aspect, wherein the arcuate outer periphery of the two flat plates is formed in a stepped portion having a step on the plate surface. .

  A third aspect of the present invention is the rotary hinge according to the first or second aspect, wherein the slide portion can be separated from and abutted with each other by relative rotation of the two flat plates. It is also characterized by serving.

  A fourth aspect of the present invention is the rotary hinge according to any one of the first to third aspects, wherein the shaft is a hollow shaft.

  Invention of Claim 5 is a rotation hinge as described in any one of Claim 1 to 4, Comprising: The said slide part is formed by bending the circular arc outer periphery of said other flat plate, A sliding member that slides while sandwiching an arcuate outer periphery of one flat plate is provided inside.

  A sixth aspect of the present invention is the rotating hinge according to any one of the first to fifth aspects, wherein the stopper is formed integrally with the flat plate.

  A seventh aspect of the present invention is the rotary hinge according to any one of the first to sixth aspects, wherein the two flat plates are fan-shaped.

  The invention according to an eighth aspect is the rotary hinge according to any one of the first to sixth aspects, wherein the two flat plates are discs.

  The invention according to claim 9 includes a first housing having an operation portion, a second housing having a display portion, and the rotary hinge according to any one of claims 1 to 8, wherein The mobile device is characterized in that one of two flat plates is fixed to the first casing and the other is fixed to the second casing.

  According to the present invention, the three-point support is strong against a load in any direction, and the hinge is not exposed to the outside, so that the appearance is good, and the rotation operation is improved by the assist force of the elastic member.

BRIEF DESCRIPTION OF THE DRAWINGS It is the front view which showed the structure of one Embodiment of the portable apparatus to which this invention is applied, and showed the display part vertical state of the mobile telephone. It is the front view which showed the display part horizontal state of the mobile telephone of FIG. It is a disassembled perspective view of a housing | casing and a rotation hinge. FIG. 4 is an exploded perspective view of the rotary hinge of FIG. 3. It is a front view corresponding to the display part vertically long state of a rotation hinge. It is sectional drawing (a) along the arrow AA line of FIG. 5, and sectional drawing (b) along the arrow BB line. It is the figure which showed the rotation intermediate state of the rotation hinge. It is a figure corresponding to the display part landscape state of a rotation hinge. It is sectional drawing along the arrow AA of FIG. It is the front view which showed the display part horizontal state of the mobile telephone as a modification. FIG. 9 is a front view showing the vertically long state of the display unit of the mobile phone according to the second embodiment. It is the enlarged front view which showed the state of the rotation hinge of the state of FIG. It is the front view which showed the display part rotation intermediate state of the mobile telephone of FIG. It is the enlarged front view which showed the state of the rotation hinge of the state of FIG. It is the front view which showed the display part horizontal state of the mobile telephone of FIG. FIG. 16 is an enlarged front view showing a state of the rotary hinge in the state of FIG. 15. It is a disassembled perspective view of a rotation hinge.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
(Embodiment 1)
1 and 2 show a mobile phone as a configuration of an embodiment of a mobile device to which the present invention is applied. FIG. 3 is an exploded view of the casing and a rotating hinge. Reference numeral 1 denotes a housing, 2 denotes a second housing, 3 denotes a rotary hinge, 4 denotes an operation side flat plate, and 5 denotes a display side flat plate.

  As shown in the figure, an operation unit 1a is provided on the upper surface of the first housing 1, and a display unit 2a is provided on the upper surface of the second housing 2. The second housing 2 is coupled to each other via a rotary hinge 3 so as to be rotatable. The rotating hinge 3 is screwed on the operation side flat plate 4 screwed and fixed on the upper half side of the operation unit 1a on the first case 1 and the upper and lower intermediate parts of the rear case 2b of the second case 2. A display-side flat plate 5 to be fixed is provided.

  4 is an exploded view of the rotary hinge 3. 6 is a central shaft, 7 is a flange, 8 is a spacer, 11 is an elastic member, 12 and 13 are fixing pins, and 14 and 15 are sliding members.

  As shown in the figure, the rotary hinge 3 includes an operation side flat plate 4, a display side flat plate 5, a central shaft 6, an elastic member 11, sliding members 14 and 15 and the like. That is, the operation side flat plate 4 and the display side flat plate 5 are rotatably connected to each other by a central shaft 6 formed by a hollow shaft, and both have a fan-shaped outer shape. A flange 7 is coupled and fixed to the lower end of the center shaft 6.

  Between the operation side flat plate 4 and the display side flat plate 5, a spacer 8 is provided around the central axis 6 and an assisting torsion coil spring 11 as an elastic member is provided. One end of the assisting torsion coil spring 11 is fixed to the operation side flat plate 4 by a fixing pin 12, and the other end is fixed to the display side flat plate 4 by a fixing pin 13.

  The fan-like operation side flat plate 4 is secured by an integrally formed stepped portion in which an arc-shaped outer periphery 4a centering on the central axis 6 is raised one step, and one end portion (the left end portion in the drawing) is folded upward. It is formed in the U-shaped slide part 4b opened inward. A sliding member 14 having a slide groove for sandwiching the arc-shaped outer periphery 5a of the display-side flat plate 5 is incorporated in the U-shaped slide portion 4b, and is fixedly secured by flanges at both ends thereof.

  Further, a stopper 4c is formed integrally with a small protrusion to the outside at the other end (upper end in the figure) of the arc-shaped outer periphery 4a of the operation side flat plate 4.

  Further, the fan-shaped display-side flat plate 5 has rigidity secured by an integrally formed step portion in which an arc-shaped outer periphery 5a centering on the central axis 6 is lowered, and one end portion (the left end portion in the drawing) is downward. It is formed in a U-shaped slide portion 5b that is folded back and opened inward. A sliding member 15 having a slide groove for sandwiching the arcuate outer periphery 4a of the operation side flat plate 4 is incorporated in the U-shaped slide portion 5b, and is fixed to be fixed by flanges at both ends thereof.

  FIG. 5 is a view corresponding to the vertically long state of the display portion of the rotary hinge 3. FIGS. 6 (a) and 6 (b) show cross sections along the arrows AA and BB.

  In the vertically long state of the display unit 2a shown in FIG. 1, the rotary hinge 3 described above has a positional relationship in which the operation side flat plate 4 and the display side flat plate 5 spread vertically as shown in FIG. The slide portions 4b and 5b come into contact with each other, and are located at a limit position where the display side flat plate 5 is rotated counterclockwise with respect to the operation side flat plate 4, and also function as a stopper.

  When the second housing 2 is rotated clockwise with respect to the first housing 1 from the state of FIG. 1, the display-side flat plate 5 is moved along the arcuate outer periphery 4a of the operation-side flat plate 4 as shown in FIG. At the same time as the slide part 5b slides, the arcuate outer periphery 5a of the display side flat plate 5 slides on the slide part 4b of the operation side flat plate 4. At this time, the assisting torsion coil spring 11 is accumulated in the coil portion so as to be temporarily contracted and then released again, thereby assisting the force required for the rotating operation, and the rotating operation is quickly performed with a simple operation. .

  FIG. 8 is a diagram corresponding to the horizontally long state of the display portion of the rotary hinge 3. In the horizontally long state of the display portion 2 a shown in FIG. 2, the operation side flat plate 4 just overlaps the display side flat plate 5 as shown in the figure. Due to the positional relationship, the slide portion 5b of the display side flat plate 5 comes into contact with the stopper 4c integrated with the operation side flat plate 4, and is at a limit position where the display side flat plate 5 is rotated clockwise with respect to the operation side flat plate 4.

  FIG. 9 shows a cross section taken along the line AA in FIG. 1. As shown in the drawing, in the hollow portion of the central shaft 6, an operation side substrate (not shown) in the first housing 1 and the second substrate are shown. A thin coaxial cable 16 is connected to electrically connect a display-side substrate (not shown) in the housing 2 of FIG.

  As described above, according to the mobile phone of the embodiment, in the rotating hinge 3, the two fan-shaped operation-side flat plates 4 and the display-side flat plate 5 are sandwiched between the two arc-shaped outer peripheries 4a and 5a. With the three-point support of 4b and 5b and the central shaft 6, it is strong against the load in the direction of peeling the second housing 2 from the first housing 1 with the display portion 2a being in the horizontally long state. Can achieve a strong rotating hinge structure.

  In addition, since the rotary hinge 3 is not exposed to the outside, the appearance is good and there is little mixing of dust.

  Furthermore, the advantage that rotation operation becomes favorable with the assist force of the torsion coil spring 11 can also be exhibited.

  Further, since it is not necessary to provide guide grooves and slide pins in the plate surfaces of the operation side flat plate 4 and the display side flat plate 5, there is an advantage that the degree of freedom of arrangement of the assist torsion coil spring 11 is high.

(Modification)
FIG. 10 shows a display unit in a horizontally long state as a modified example. By fixing the display side flat plate 5 to the upper half of the rear case 2b of the second casing 2 with screws, As shown in the figure, the second casing 2 protrudes on one side with respect to the first casing 1 so that the display portion 2a is in a horizontally long state.

(Embodiment 2)
11 to 16 show the second embodiment, and FIG. 17 is an exploded view of the rotary hinge. As in the first embodiment, 1 is the first casing, and 1a is the operation unit. 2 is a second housing, 2a is a display unit, 3 is a rotating hinge, 4 is an operation side plate, 4a is an arc-shaped outer periphery by a stepped portion, 4b is a slide portion also serving as a stopper, 5 is a display side plate, and 5a is Arc-shaped outer periphery by stepped portion, 5b is a sliding portion also serving as a stopper, 6 is a central shaft, 7 is a flange, 8 is a spacer, 11 is a torsion coil spring for assisting, 12 and 13 are fixed pins, and 14 and 15 are sliding members. .

  In the second embodiment, as shown in the figure, the rotary hinge 3 is configured such that two slide portions 4b and 5b are separately provided on the operation side flat plate 4 and the display side flat plate 5 which are both discs. Sliding members 14 and 15 provided on 4b and 5b are respectively engaged with arcuate outer peripheries 4a and 5a formed by stepped portions.

  In the illustrated example, the arc-shaped outer peripheries 4a and 5a formed by the stepped portions are provided beyond the half peripheries of the operation-side flat plate 4 and the display-side flat plate 5 formed of discs, and two slide portions 4b and 5b are provided at both ends thereof. Are provided. The operation-side flat plate 4 made of a disk is screwed and fixed on the upper half of the operation unit 1 a on the first housing 1, and the display-side flat plate 5 made of a disk is a rear case of the second housing 2. It is fixed with screws to the upper half.

  In the vertically long state of the display unit 2a shown in FIG. 11, the rotary hinge 3 described above is shown in the state shown in FIG. 12 in a state where the operation side flat plate 4 and the display side flat plate 5 are overlapped as shown in FIG. Thus, the slide portions 4b and 5b come into contact with each other and are at the limit positions where the display side flat plate 5 is rotated counterclockwise with respect to the operation side flat plate 4, and also function as stoppers.

  When the second casing 2 is rotated clockwise with respect to the first casing 1 as shown in FIG. 13 from the state of FIG. 11, as shown in FIG. The two slide portions 5b of the display-side flat plate 5 slide along the arc-shaped outer periphery 4a, and at the same time, the arc-shaped outer periphery 5a of the display-side flat plate 5 by the disc slides along the two slide portions 4b of the operation-side flat plate 4 by the disc. To do. At this time, the assisting torsion coil spring 11 is accumulated in the coil portion so as to spread once and then released again, whereby the force required for the rotation operation is assisted, and the rotation operation can be performed quickly with a simple operation. Is called.

  In the horizontally long state of the display unit 2a shown in FIG. 15, as shown in FIG. 16, the slide part 5b of the display side flat plate 5 made of a disc is placed on the slide part 4b on the upper side of the operation side flat plate 4 made of a disc. At the end, it is at a limit position where the display side flat plate 5 is rotated clockwise with respect to the operation side flat plate 4.

  As described above, also in the mobile phone of the second embodiment, in the rotary hinge 3, the four slides on the operation side flat plate 4 and the display side flat plate 5 made of discs and the four slides sandwiching the arc-shaped outer peripheries 4a and 5a by the stepped portions. With the five-point support of the parts 4b and 5b and the central shaft 6, it is particularly resistant to the load in the direction of peeling the second casing 2 from the first casing 1 with the display unit 2a in the horizontally long state. In addition, it is possible to realize a rotating hinge structure that is stronger than the three-point support of the first embodiment described above. In addition, the same effects as those of the first embodiment can be obtained.

(Other variations)
In the above embodiment, the cellular phone is used. However, the present invention is not limited to this, and the present invention is not limited to this, and can be applied to all devices including a rotating hinge such as a camera, a PDA, a notebook computer, a wearable computer, a calculator, and an electronic dictionary. Can be used.
Further, a slide mechanism may be provided on the rotary hinge.
Furthermore, in the embodiment, the arcuate outer periphery of the flat plate is formed in the stepped portion, but may be flat.
Further, the material of the sliding member, the type of the elastic member for controlling the rotational force, and the like are arbitrary, and it is needless to say that other specific detailed structures can be appropriately changed.

DESCRIPTION OF SYMBOLS 1 1st housing | casing 1a Operation part 2 2nd housing | casing 2a Display part 3 Rotating hinge 4 Flat plate 4a Arc-shaped outer periphery (step part)
4b Slide part (stopper)
4c Stopper 5 Flat plate 5a Arc outer periphery (step)
5b Slide part (stopper)
6 Shaft 7 Flange 8 Spacer 11 Elastic member 12 Fixing pin 13 Fixing pin 14 Slide member 15 Slide member 16 Coaxial cable

Claims (9)

Two flat plates having an arcuate outer periphery centered on the center of rotation;
A shaft that rotatably connects the rotation centers of the two flat plates;
Two of the two flat plates are provided so as to sandwich the arc-shaped outer periphery of one flat plate with the arc-shaped outer periphery of the other flat plate so that the two flat plates slide relative to each other along the arc-shaped outer periphery of the one flat plate. Slide part,
A stopper for restricting rotational movement of the two flat plates;
An elastic member that controls a rotational force according to the rotation of the two flat plates.   The rotating hinge according to claim 1, wherein the arcuate outer peripheries of the two flat plates are formed in a stepped portion having a step on the plate surface.   3. The rotary hinge according to claim 1, wherein the slide portion can be separated and contacted by relative rotation of the two flat plates and also serves as the stopper.   The rotary hinge according to claim 1, wherein the shaft is a hollow shaft.   The slide portion is formed by bending an arc-shaped outer periphery of the other flat plate, and a sliding member is provided inside the slide portion so as to slide while sandwiching the arc-shaped outer periphery of the one flat plate. The rotation hinge as described in any one of 1-4.   The rotary hinge according to any one of claims 1 to 5, wherein the stopper is formed integrally with the flat plate.   The rotary hinge according to any one of claims 1 to 6, wherein the two flat plates are fan-shaped.   The rotary hinge according to any one of claims 1 to 6, wherein the two flat plates are discs. A first housing having an operation unit;
A second housing having a display portion;
A rotary hinge according to any one of claims 1 to 8,
One of the two flat plates is fixed to the first casing, and the other is fixed to the second casing.

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