JP2010014158A - Two-shaft hinge device and portable apparatus using this two-shaft hinge device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a two-shaft hinge device and a portable apparatus using this two-shaft hinge device, capable of reducing looseness in opening-closing operation, with sufficient strength, while reducing cost by reducing the number of part items, by reducing the size as a whole. <P>SOLUTION: This two-shaft hinge device comprises an installation frame having a substrate part and a pair of first bearing part and second bearing part erected in the mutually orthogonal direction from this substrate part, a first shaft formed by rotatably installing the first deformation head part side in the first bearing part, a second shaft formed by installing the second deformation head part side in the second bearing part, and a regulating means arranged between a first deformation head part and a second deformation head part. The problem is solved by constituting this regulating means of a crossing part and an uncrossing part arranged in respective side parts of the first deformation head part and the second deformation head part, and in the portable apparatus, the problem is solved by installing the two-shaft hinge device in a corner part between a first casing and a second casing. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is suitable for use when the first casing and the second casing constituting the portable device are opened and closed relatively in the two directions of the vertical direction and the horizontal direction from the closed state in which the first casing and the second casing are overlapped with each other. The present invention relates to an axial hinge device and a portable device using the biaxial hinge device.

  A mobile phone, which is a type of mobile device, has a first housing with a keyboard or the like provided on the top surface and a second housing with a display unit or the like provided on the bottom surface. Two-folded products that are connected to two housings in two directions so as to be openable and closable via hinge devices are on the market. In this two-fold mobile phone, the second casing is connected to the rear of the upper surface of the first casing via a biaxial hinge device so that the second casing can be opened and closed, and the second casing is attached to the upper surface of the first casing. A closed state in which the upper surface of the first housing is covered with the second housing, and an open state in which the upper surface of the first housing is exposed by rotating the second housing with respect to the first housing. Can be produced.

In recent years, mobile phones having a variety of functions such as a function for capturing and displaying various images using a communication line such as the Internet and a game function in addition to a call function are on the market. Such a cellular phone having various functions cannot sufficiently exhibit its functions unless the display unit such as a display can be used only in a portrait orientation. That is, the conventional hinge device connects the first housing and the second housing so that they can be opened and closed in the vertical direction. The hinge device can only be opened and closed in one direction, and the display unit can only be used vertically long. could not. For this reason, a biaxial hinge device that can be opened and closed in the left-right direction in addition to opening and closing the first housing and the second housing in the vertical direction and a mobile phone using the biaxial hinge device have been proposed. (For example, refer to Patent Document 1).
JP 2007-177829

  The biaxial hinge device described in Patent Document 1 has a U-shaped cross section formed by vertically standing a substrate portion and a pair of bearing portions having bearing holes from both ends of the substrate portion. A basic frame, an opening / closing shaft that is rotatably attached to the pair of bearing portions, a rotating shaft that is rotatably attached to a central portion of the substrate portion in a direction perpendicular to the opening / closing shaft, an opening / closing shaft and a bearing portion The cam mechanism for the opening and closing shaft that acts with the elastic means composed of a number of parts provided between the rotating shaft and the rotating shaft that acts with the elastic means composed of the same number of parts provided between the rotation shaft and the substrate portion And a restricting means provided between the heads of the opening / closing shaft and the rotating shaft.

  By the way, in recent years, mobile devices, particularly mobile phones, have been reduced in size and thickness in addition to the above-mentioned multifunctional functions, and the opening / closing devices of the mobile devices are also required to be reduced in size and cost. In this respect, the biaxial hinge device described in Patent Document 1 is still large in size and has a large number of parts. Therefore, the number of parts is small, and the number of parts is high. There was a problem that it was expensive. Furthermore, since the thing of patent document 1 is not the thing of the structure which opens and closes the 1st housing | casing and 2nd housing | casing which comprise a mobile telephone to 2 directions of an up-down direction and a left-right direction, 2 of an up-down direction and a left-right direction are There is a need for a small, inexpensive biaxial hinge that can be opened and closed in any direction.

  The present invention has been made in order to solve the above-described problems, and its purpose is to make the vertical and horizontal directions of the first and second casings constituting the portable device overlapped with each other. It has a function that can be opened and closed in two directions, and as a whole it has been reduced in size and cost, and it has sufficient strength and can reduce backlash during opening and closing operations. An object of the present invention is to provide an axial hinge device and a portable device including the biaxial hinge device.

  In order to achieve the above object, a two-axis hinge device for a portable device according to the present invention is erected in a direction orthogonal to each other from a board part and the board part, and has a first bearing at each diagonal position in the horizontal direction. A mounting frame having a pair of first bearing portions and second bearing portions each having a hole and a second bearing hole, a first deformable head portion and a first shaft portion; A first shaft formed by attaching the first shaft portion side to the first housing side, a second deformable head portion, and a second shaft portion while being rotatably attached to the first bearing portion; A second shaft formed by rotatably attaching the second deformable head side to the second bearing portion, and attaching the second shaft portion to the second housing side, and the first deformable head Restricting means provided between the second deformable head and the restricting means, the restricting means being used as the first deformable head. And a crossover portion and a non-crossover portion provided on each side of the second deformable head, so that when the first housing and the second housing are in a closed state, the non-crossover portions are mutually opposed. When the first casing and the second casing can be opened in either of the two directions at an angular position, and one of the first casing and the second casing is opened Is characterized in that each crossing portion and the non-crossing portion are in a diagonal position so as to restrict the opening of the other of the first housing and the second housing.

  In this case, the present invention may provide a rotation control means for controlling the rotation of the first shaft and the second shaft between the first shaft or the second shaft and the first bearing portion or the second bearing portion. preferable.

  Furthermore, the present invention can be a cam mechanism in which one or both of the rotation control means act on elastic means.

  Further, in the present invention, one or both of the elastic means can be a spring washer or a compression coil spring.

  Further, in the present invention, it is preferable that an insertion hole through which the cable passes in the axial direction is provided through the first shaft and the second shaft.

  Further, the present invention provides a fixed cam portion comprising a concave portion and a convex portion, wherein one or both of the cam mechanisms are provided on the surface portion of the first bearing portion or the second bearing portion so as to surround the first bearing hole or the second bearing hole. Rotation provided with a rotating cam portion comprising a concave portion and a convex portion provided on a surface portion opposed to the fixed cam portion, the rotation being restricted by the first and second shafts and slidable in the axial direction. It can consist of a cam.

  In the present invention, it is preferable that one or both of the first bearing portion and the second bearing portion of the mounting frame are formed by overlapping a plurality of plates.

  Furthermore, the present invention provides the substrate portion of the mounting frame formed by overlapping a plurality of plates, and the first portion and the second bearing portion between the end portion of the plate located on the upper side and the first and second bearing portions. The present invention is characterized in that an operation stabilizing groove for inserting the first deformable head and the end of the second deformable head of the first shaft and / or the second shaft is provided.

  Further, according to the present invention, a stopper portion that restricts an opening angle of the first casing and the second casing when the first casing and the second casing are opened can be provided at the end of the first casing.

    And this invention attaches either the 1st shaft of the biaxial hinge apparatus of each said structure to a 1st housing | casing, and the other to a 2nd housing | casing, and comprises a portable apparatus.

  According to the present invention, the biaxial hinge device is erected in a direction orthogonal to each other from the substrate portion and the substrate portion, and the pair of first bearing portions and second bearing portions are arranged at diagonal positions in the horizontal direction. The mounting frame includes a first deformable head and a first shaft portion, the first deformable head side is rotatably attached to the first bearing portion, and the first shaft portion side is attached to the first shaft portion. A first shaft mounted on the first housing side, a second deformable head and a second shaft portion, and the second deformable head side is rotatably attached to the second bearing portion; A second shaft formed by attaching the second shaft portion to the second housing side; and a restricting means provided between the first deformable head and the second deformable head. Since the restricting means is composed of a crossing portion and a non-crossing portion provided on each side of the first deformation head and the second deformation head, the vertical direction Even when the first housing and the second housing can be opened and closed in the left and right directions, the apparatus can be reduced in size and the number of parts can be omitted to reduce the cost. Is. In addition, when a double plate structure is employed for the substrate portion and the bearing portion, the required strength can be obtained even with a small size. Therefore, since the biaxial hinge device can be reduced in size, the portable device can be reduced in size and thickness.

  As described above, according to the two-axis hinge device of the portable device and the portable device using the two-axis hinge device according to the present invention, the two-axis hinge device can be reduced in size, and the number of parts is omitted. The required strength can be obtained after cost reduction, and the portable device using the biaxial hinge device can be reduced in size and thickness.

  Hereinafter, a portable device using the two-axis hinge device of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a diagram showing an example of a portable device provided with a two-axis hinge device for a portable device according to the present invention. 2-7 is a figure which shows an example of the biaxial hinge apparatus of the portable apparatus which concerns on this invention. As shown in FIGS. 1, 5, and 7, the two-axis hinge device for a portable device according to the present invention is a closed device in which a first housing 2 and a second housing 3 constituting the portable device 1 are overlapped with each other. From the completed state, it is opened and closed relatively in two directions, the up-down direction and the left-right direction.

  The mobile device 1 is not particularly limited, and examples thereof include a mobile phone, a PDA, a notebook personal computer, a mobile terminal such as a Zaurus (trademark), a calculator, a pocket computer, a portable game machine, and the like. Preferably there is. In the present invention, the portable device includes an ashtray, a case lid, and the like. That is, there is no particular limitation as long as the two casings can be opened and closed in two directions, the vertical direction and the horizontal direction. In the present embodiment, the portable device will be described without any particular limitation.

  In the case of a portable device such as a small electronic device, the first housing 2 has a keyboard or the like on the upper surface although not shown, and the second housing 3 is a display such as an LCD (not shown). It has a device etc. on the lower surface. The 1st housing | casing 2 and the 2nd housing | casing 3 are each formed in the substantially same substantially rectangular shape. The first casing 2 and the second casing 3 can be opened and closed relatively in the two directions of the vertical direction and the horizontal direction from the closed state where the first casing 2 and the second casing 3 are overlapped with each other. Are connected to each other via a biaxial hinge device 4 to form a portable device 1. That is, the portable device 1 is configured such that the lower surface of the second housing 3 is overlapped with the upper surface of the first housing 2 to close the upper surface of the first housing 2 and the second surface from the upper surface of the first housing 2 is second. The lower surface of the housing 3 is separated so that the upper surface of the first housing 2 can be exposed.

  The biaxial hinge device 4 according to the present invention connects the corner portions of the first housing 2 and the second housing 3 so as to be openable and closable in the vertical direction and the horizontal direction. And a pair of first bearing portion 5b and second bearing portion 5c having first bearing holes 5f and second bearing holes 5g at diagonal positions in the horizontal direction. And a first deformation head 6a and a first shaft portion 6b. The first deformation head 6a is rotatably attached to the first bearing portion 5b, and the first shaft A first shaft 6 formed by attaching the side of the portion 6b to the side of the second housing 3, a second deformable head 17a and a second shaft portion 17b, and the second deformable head 17a side being the second A second shaft 1 that is rotatably attached to the shaft portion 17b and has the second shaft portion 17b attached to the first housing 2 side. When, is characterized in that is configured to include a restricting means A provided between the first modified head 6a and the second modified head 17a, the.

  The mounting frame 5 is formed by pressing a metal plate such as SUS, for example, and the second bearing portion 5c is bent from the first plate 5d and the first bearing portion 5b which are bent from the substrate portion 5a. In addition, the second plate 5e is overlapped. Note that the mounting frame 5 is not limited to SUS, and may be made of a material having another strength, and may be arbitrarily made of a forged product or a sintered metal. Further, the double structure of the bearing portion is only the second bearing portion 5c in the embodiment, but the first plate 5d that forms the second bearing portion 5c is also provided on the first bearing portion 5b side, for example. A double structure can be obtained by bending and overlapping the one bearing portion 5b. Thus, when the bearing portion has a double structure, there is an advantage that the strength is increased. Furthermore, there is no limitation in particular about the means to make this double structure, For example, you may form by overlapping another plate and adhering to each bearing part. The point that the first bearing portion 5b and the second bearing portion 5c are erected in an orthogonal state with respect to the substrate portion 5a greatly contributes to downsizing the biaxial hinge device according to the present invention.

  In the first bearing hole 5f provided in the first bearing portion 5b, the first shaft 6 including the first deformable head portion 6a and the first shaft portion 6b rotates the first shaft portion 6b on the first deformable head portion 6a side. Bearings are possible. The first shaft 6 is made by processing a metal round bar such as SUS, for example, but the material and the way of making are not limited to this. It may be made of a forged product or sintered metal. In the axial direction of the central portion of the first shaft 6, an insertion hole 6 c through which the cable 7 passes is provided, and the first deformable head 6 a has a non-crossing portion 6 d cut at the outer peripheral end surface thereof, A crossing portion 6e that is not cut and a stopper portion 6f that is further formed on the crossing portion 6e are provided. The outer periphery of the first shaft portion 6b is provided with a rotation restricting portion 6g having a substantially elliptical cross section by scraping both sides thereof, and further provided with a mounting portion 6h having a substantially rectangular cross section on the free end side. It has been.

  The rotation restricting portion 6g of the first shaft portion 6b in which the first shaft 6 penetrates the first bearing hole 5f and protrudes outward from the first bearing portion 5b is in contact with the first bearing portion 5b. A rotation restricting portion 6g is inserted into a deformation insertion hole 8a provided in the axial direction of the central portion so as to rotate together with the first shaft 6, and is attached to a contact surface between the rotating cam 8 and the first bearing portion 5b. A first cam mechanism 9 is provided. Similarly, the first cam mechanism 9 is deformed and inserted into the fixed cam portion 10 including a pair of convex portions 10c and 10d provided at opposing positions across the first bearing hole 5f, and the first bearing portion 5b side of the rotating cam 8. A pair of convex portions 11a and 11b provided at opposing positions with the hole 8a interposed therebetween, and a rotating cam portion 11 comprising a pair of concave portions 11c and 11d provided at the opposing position with the deformation insertion hole 8a interposed therebetween. . In addition, the upper surface of each convex part 10c, 10d and 11a, 11b is formed flat.

  Next, in the first shaft portion 6b of the first shaft 6, the first shaft portion 6b is inserted into the respective insertion holes 12a, 13a, 14a provided in the central portion axial direction, and the three spring washers 12, 13 are inserted. , 14 is provided, and the elastic means 15 is configured such that the mounting hole 16a provided in the mounting member 16 is fitted into the mounting portion 6h of the first shaft portion 6b, and the first shaft portion 6b is thus mounted. By caulking the end of 6h, the rotating cam portion 11 of the rotating cam 8 is brought into pressure contact with the fixed cam portion 10 provided on the first bearing portion 5b side through the elastic means 15. The elastic means 15 may be constituted by a disc spring or the like in addition to the spring washer, or may be a compression coil spring. The cylindrical shape of the instruction symbol 15 a is a cover that covers the first cam mechanism 9 and the elastic means 15.

  Next, the first bearing hole 5f provided in the first bearing portion 5b provided in the second bearing portion 5c has the same height as the shaft core, and the second bearing hole is formed at a diagonal position in the horizontal direction. In 5g, the second shaft 17 including the second deformable head portion 17a and the second shaft portion 17b rotatably supports the second shaft portion 17b on the second deformable head portion 17a side. As described above, the first bearing holes 5f and the second bearing holes 5g are provided at the diagonal positions in the horizontal direction with the same height of the shaft core. Since the mounting direction is determined, it contributes to miniaturization of the biaxial hinge device. The second shaft 17 is a processed product of a metal round bar such as SUS, but the material is not limited to this. It may be made of a forged product or sintered metal. An insertion hole 17c through which the cable 7 passes is provided in the axial direction of the central portion of the second shaft 17, and the second deformable head 17a includes a non-crossing portion 17d cut at the outer peripheral end surface thereof, An uncut crossing part 17e and a stopper part 17f further formed on the crossing part 17e are provided. The outer periphery of the second shaft portion 17b is provided with a rotation restricting portion 17g having a substantially elliptical cross section by scraping both sides thereof, and a mounting portion 17h having a substantially quadrangular cross section is further provided on the free end side. It has been.

  The rotation regulating portion 17g of the second shaft portion 17b, in which the second shaft 17 passes through the second bearing hole 5g and protrudes outward from the second bearing portion 5c, is in contact with the second bearing portion 5c and the rotating cam 18 is in contact therewith. A rotation restricting portion 17g is inserted into a deformation insertion hole 18a provided in the axial direction of the core portion so as to rotate together with the second shaft 17, and a contact surface between the rotating cam 18 and the second bearing portion 5c. A second cam mechanism 19 is provided. The second cam mechanism 19 is provided at a pair of recesses 20a and 20b provided at opposite positions sandwiching the second bearing hole 5g on the second bearing portion 5c side, and at an opposite position sandwiching the second bearing hole 5g. The fixed cam portion 20 composed of a pair of convex portions 20c and 20d, and the pair of convex portions 21a and 21b provided at opposed positions across the deformation insertion hole 18a of the rotating cam 18, and the opposite across the deformation insertion hole 18a. The rotary cam portion 21 includes a pair of concave portions 21c and 21d provided at positions. In addition, the upper surface of each convex part 20c, 20d and 21a, 21b is comprised flat.

  Next, the second shaft portion 17b of the second shaft 17 is provided with elastic means 22 formed of a compression coil spring that is wound around the outer periphery thereof. The elastic means 22 is attached to the second shaft portion 17b. By fitting the mounting hole 23f provided in the mounting member 23 into the portion 17h and caulking the end portion of the mounting portion 17h with the second shaft portion 17b, the rotating cam portion 21 of the rotating cam 18 is fixed to the fixed cam portion of the bearing portion 5c. Pressed to the 20 side. The elastic means 22 may be constituted by a spring washer, a disc spring, or the like like the elastic means 15.

  The attachment member 23 includes a substrate portion 23a, a reinforcement portion 23b raised from the substrate portion 23a, and an attachment portion 23c. The attachment portion 23c is reinforced with the first plate 23d raised from the substrate portion 23a. It has a double structure in which the second plate 23e bent from the portion 23b is overlapped.

  The material of the mounting member 23 is SUS, but is not limited thereto. It is optional to use a metal other than SUS, or a sintered metal or a forged product. The cylindrical symbol 22a is a cover that covers the second cam mechanism 19 and the elastic means 22.

  Next, the function and effect of the present invention will be described. As shown in FIGS. 1 and 2, the attachment member 16 of the biaxial hinge device is attached to the end of the second housing 3, and the attachment member 23 is attached to the end of the first housing 2. The mounting frame 5 of the shaft hinge device 4 is housed in a housing portion 2 a formed at the corner of the first housing 2. In the state in which the first housing 2 and the second housing 3 of the portable device 1 are closed and overlapped in the vertical direction, the first cam mechanism 9 of the biaxial hinge device 4 is not fully illustrated. The convex portions 11 a and 11 b of the rotating cam portion 11 fall into the concave portions 10 a and 10 b of the fixed cam portion 10 provided on the first bearing portion 5 b of the mounting frame 5, and the rotating cam portion 21 of the second cam mechanism 19. Since the convex portions 21a and 21b of the mounting frame 5 fall into the concave portions 20a and 20b of the fixed cam portion 20 of the second bearing portion 5c of the mounting frame 5, the first housing 2 and the second housing 3 are vertically and horizontally As long as no external force is applied in either direction, the closed state is maintained without opening.

  In this closed state, as shown particularly in FIGS. 2 and 4, the non-crossing portion 6d of the first deformable head 6a of the first shaft 6 and the second deformable head 17a of the second shaft 17 are used. Since the non-crossover portion 17d is in a diagonal position and is in a non-crossover state, and the space portion a is formed, the first housing 2 and the second housing 3 are relatively in the vertical direction. It can be opened in either the left or right direction. That is, the first deformable head 6a and the second deformable head 17a of the first shaft 6 and the second shaft 17 are in a state in which neither rotation of the first shaft 6 nor the second shaft 17 is prevented. From this state, when the first casing 2 and the second casing 3 are opened in either the up-down direction or the left-right direction, the first shaft 6 and the second shaft 17 that rotate together in the opening direction cause the first casing 2 and the second casing 3 to rotate. Since one of the intersecting portions 6e or 17e of the first deformable head 6a and the second deformable head 17a enters the space a, either the first shaft 6 or the second shaft 17 is prevented from rotating. It will be. That is, when the first housing 2 and the second housing 3 are opened in the vertical direction, the crossing portion 17e of the second deformable head portion 17a of the second shaft 17 that rotates together enters the space portion a. Since the 1st deformation | transformation head 6a cannot rotate the 1st shaft 6, the opening operation to the left-right direction cannot be performed.

  Further, when the first housing 2 and the second housing 3 are relatively opened in the left-right direction, the crossing portion 6e of the first deformable head 6a of the first shaft 6 enters the space portion a. The second deformable head portion 17a of the shaft 17 cannot rotate, and the opening operation in the vertical direction of the first housing 2 and the second housing 3 cannot be performed.

  In this way, the first casing 2 and the second casing 3 are prevented from being simultaneously opened and closed in the vertical direction and the horizontal direction, thereby eliminating the inconvenience caused thereby.

  Next, when a display device or the like is attached to the lower surface of the second housing 3, the second housing 3 does not open up to 180 ° with respect to the first housing 2 when fully opened with respect to the first housing 2. It is desirable to restrict the opening angle to about 160 ° in order to make the display device easy to see, and the present invention restricts the opening angle to the first deformable head 6a of the first shaft 6 and the second shaft 17. And stopper portions 6f and 17f provided on the second deformation head 17a, respectively. That is, when the second housing 3 is opened in the vertical direction, the opening angle is restricted by the stopper portion 17f provided on the second deformable head portion 17a of the second shaft 17 contacting the inside of the first bearing portion 5b. When the second housing 3 is opened in the left-right direction with respect to the first housing 2, the stopper portion 6f provided on the first deformable head 6a of the first shaft 6 comes into contact with the second bearing portion 5c. The opening angle is regulated.

  Needless to say, here, the stopper portions 6f and 17f may be configured to abut against the substrate portion 5a. However, if the stopper portion 6f is configured to come into contact with the second bearing portion 5c that is doubled, there is an advantage that the stop holding state is stabilized. The rotation restriction angle is 160 ° in the embodiment, but is not limited to this angle.

  Next, the convex portions 11 a and 11 b of the rotating cam portion 11 of the rotating cam 8 of the first cam mechanism 9 and the convex portions 10 c and 10 d of the fixed cam portion 10, and the rotating cam portion 21 of the rotating cam 18 of the second cam mechanism 19. Since the upper surfaces of the convex portions 21a and 21b and the convex portions 20c and 20d of the fixed cam portion 20 are both flat, the first casing 2 and the second casing 3 are moved in either the vertical direction or the horizontal direction. Friction torque is generated even when opening and closing.

  The positions of the convex portions and the concave portions of the first cam mechanism 9 and the second cam mechanism 19 may be reversed. Furthermore, by appropriately selecting the installation position, it is possible to stop the click when the first casing 2 and the second casing 3 are opened and closed.

  FIG. 8 shows another embodiment of the biaxial hinge device according to the present invention. According to the drawing, in the biaxial hinge device 30 according to this embodiment, another reinforcing plate 32 is superimposed on the substrate portion 31a of the mounting frame 31, and the end surface of the reinforcing plate 32 and the first bearing portion 31b are overlapped. Operation stabilizing grooves 35a and 35b sandwiching the first and second deformed heads 33a and 34a of the first shaft 33 and the second shaft 34 are provided between the first shaft 33 and the second bearing portion 31c.

  With this configuration, the strength of the mounting frame 31 is increased, and the first shaft 33 and the second shaft 34 are opened and closed when the first housing 2 and the second housing 3 are opened and closed in the vertical and horizontal directions. Rotation and support operations are stable and have the advantage of not rattling.

  FIG. 9 shows another embodiment of the portable device according to the present invention. According to the drawing, a stopper protrusion 41a is formed at the rear end of the first casing 41 of the portable device 40 according to this embodiment, and when the second casing 42 is opened in the vertical direction. The rear end portion 42a of the second housing 42 is in contact with the stopper projection 41a at a predetermined opening angle so as to regulate the opening angle.

  If comprised in this way, when the 2nd housing | casing 41 is opened with respect to the 1st housing | casing 42, it has the advantage that it can prevent as much as possible that the biaxial hinge apparatus which is not shown in figure which receives a turning force deform | transforms. Have.

  As described above in detail, according to the present invention, since the two-axis hinge device is reduced in size and has a sufficient strength after the number of parts can be omitted, it is used for a portable device, particularly a cellular phone. It is most suitable as a shaft hinge device, and when the two-axis hinge device according to the present invention is used for a portable device, it is possible to make the housing thin. Especially suitable for mobile phones.

It is a perspective view of the portable apparatus using the biaxial hinge apparatus which concerns on this invention. 1 is a perspective view of a biaxial hinge device according to the present invention. The biaxial hinge apparatus which concerns on this invention is shown, (a) is the disassembled perspective view, (b) is the perspective view which looked at the attachment frame from the reverse direction. It is a plane sectional view of the biaxial hinge device concerning the present invention. It is explanatory drawing for demonstrating operation | movement of the portable apparatus which concerns on this invention. It is explanatory drawing explaining operation | movement of the biaxial hinge apparatus based on this invention. It is explanatory drawing for demonstrating operation | movement of the biaxial hinge apparatus and portable apparatus which concern on this invention. It is explanatory drawing for demonstrating the other Example of the biaxial hinge apparatus based on this invention. It is explanatory drawing for demonstrating the other Example of the portable apparatus which concerns on this invention.

Explanation of symbols

A restriction means a space 1 portable device 2 first housing 3 second housing 4 biaxial hinge device 5 mounting frame 5a substrate portion 5b first bearing portion 5c second bearing portion 5f first bearing hole 5g second bearing hole 6 First shaft 6a First deformation head 6c Insertion hole 6d Non-crossing portion 6e Crossing portion 6f Stopper portion 7 Cable 8 Rotating cam 9 First cam mechanism 10 Fixed cam portion 11 Rotating cam portion 15 Elastic means 17 Second shaft 17a First 2 Deformed head portion 17c Insertion hole 17d Non-crossing portion 17e Crossing portion 17f Stopper portion 18 Rotating cam 19 Second cam mechanism 20 Fixed cam portion 22 Elastic means 32 Reinforcing plate 41a Stopper protrusion

Claims (11)

A biaxial hinge device that opens and closes the first housing and the second housing in an alternative and relative direction from the closed state in which the first housing and the second housing are overlapped to each other in two directions, the vertical direction and the horizontal direction,
A pair of first bearing portions and a second bearing portion, which are erected in a direction orthogonal to each other from the substrate portion and have a first bearing hole and a second bearing hole at diagonal positions in the horizontal direction, respectively. The mounting frame includes a first deformable head and a first shaft portion, the first deformable head side is rotatably attached to the first bearing portion, and the first shaft portion side is attached to the first shaft portion. A first shaft mounted on the first housing side, a second deformable head and a second shaft portion, and the second deformable head side is rotatably attached to the second bearing portion; A second shaft formed by attaching the second shaft portion to the second housing; and a restricting means provided between the first deformable head and the second deformable head. ,
By configuring the restricting means with a crossover portion and a non-crossover portion provided on each side of the first deformable head and the second deformable head, the first housing and the second housing are closed. In this case, the non-crossing portions are diagonal to each other, and the first housing and the second housing can be opened in either of the two directions. The first housing and the second housing When either one of the housings is opened, the crossing portions and the non-crossing portions are in diagonal positions, and the opening of the other of the first housing and the second housing is restricted. A two-axis hinge device for a portable device, characterized by being configured as described above.   The rotation control means for controlling the rotation of the first shaft and the second shaft is provided between the first shaft or the second shaft and the first bearing portion or the second bearing portion. 2. The biaxial hinge device according to 1.   The biaxial hinge apparatus according to claim 2, wherein one or both of the rotation control means is a cam mechanism in which an elastic means is applied.   4. The biaxial hinge device according to claim 3, wherein one or both of the elastic means are spring washers.   4. The biaxial hinge apparatus according to claim 3, wherein one or both of the elastic means are compression springs.   2. The biaxial hinge device according to claim 1, wherein the first shaft and the second shaft are each provided with an insertion hole through which a cable passes in the axial direction.   One or both of the cam mechanisms includes a fixed cam portion including a concave portion and a convex portion provided on a surface portion of the first bearing portion or the second bearing portion so as to surround the first bearing hole or the second bearing hole, and the first cam portion. And a rotating cam having a rotating cam portion composed of a concave portion and a convex portion provided on a surface portion opposed to the fixed cam portion, the rotation of which is regulated by the second shaft so as to be slidable in the axial direction. The biaxial hinge device according to claim 3, wherein   2. The biaxial hinge device according to claim 1, wherein one or both of the first bearing portion and the second bearing portion of the mounting frame are formed by overlapping a plurality of plates.   The substrate portion of the mounting frame is formed by overlapping a plurality of plates, and the first shaft and / or between the end portion of the plate located on the upper side and one or both of the first and second bearing portions. The biaxial hinge device according to claim 1, further comprising an operation stabilization groove into which the first deformable head of the second shaft and the end of the second deformable head are fitted.   2. The biaxial hinge device according to claim 1, wherein a stopper portion that restricts an opening angle of the first casing and the second casing when the first casing and the second casing are opened is provided at an end of the first casing. . 11. A portable device, wherein one of the first shaft and the second shaft of the biaxial hinge device according to claim 1 is attached to the first housing, and the other is attached to the second housing.

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