TW201521556A - Two-shaft hinge and terminal apparatus using the same - Google Patents

Abstract

The invention providing a two-shaft hinge, which makes a first casing and a second casing of a terminal apparatus opening and closing alternatively with a regularity and a mincing action, and in an angle range of 0 DEG to 360 DEG. Wherein, a first hinge shaft disposed on the first casing and a second hinge shaft disposed on the second casing are linked rotatably and parallelly at least by a first link element and a second link element. A first selective-rotation regulation means and a second selective-rotation regulation means are disposed between the first hinge shaft and the second hinge shaft, which make the first hinge shaft and the second hinge shaft rotating selectively. The two-shaft hinge makes the first casing and the second casing opening and closing alternatively and regularly, by motions of the first selective-rotation regulation means and the second selective-rotation regulation means, and could be rotating in the angle range of 0 DEG to 360 DEG.

Description

Two-axis hinge and terminal machine using the same

The present invention relates to a biaxial hinge suitable for use in a terminal computer such as a notebook computer, a mobile computer or a personal digital assistant (PDA).

In a terminal machine having a first casing and a second casing, and the first casing is provided with a keyboard portion, and the second casing is provided with a display portion such as a notebook computer, a mobile computer or a personal digital assistant (PDA), The hinge comprises a single-axis hinge and a two-axis hinge, wherein the single-axis hinge connects the first housing and the second housing to the up-and-down direction, and is composed of a single shaft, and the double-axis hinge It is composed of a two-axis rod, and the first housing and the second housing are opened 90 degrees in the up-and-down direction, so that the second housing can be rotated in the horizontal direction with respect to the first housing. Provided herein is a biaxial hinge.

In the conventional technique, the biaxial hinge having such a configuration can be referred to, for example, the contents described in Patent Document 1 (Japanese Patent Laid-Open Publication No. 2009-063039). The biaxial hinge described in Patent Document 1 connects a shaft assembled to a first member (first housing) and a shaft assembled to a second member (second housing) to each other by a connecting arm. Each of the shafts is provided with a friction torque generating means and a connecting rod is provided. However, the first element and the second element of Patent Document 1 cannot be opened to 180 degrees or more, and the first element and the second element cannot be opened regularly. .

In recent years, the demand for terminal devices such as notebook computers has become more diverse, and the functions of terminal devices have also increased. For example, in order to enable the notebook computer to be used as a tablet computer at the same time, it is necessary to provide a hinge when the first casing and the second casing constituting the terminal machine pass through the hinge to be closed by 0 degrees. When opening to 360 degrees, the hinge must restrict the opening operation of the other housing when one of the housings is opened, and must be able to limit the order of the opening operation to the first housing or the first One of the two housings is such that the terminal machine can be opened with a specific law.

Here, the enterprise to which the applicant of the present invention belongs is the prior application (Japanese specialization) Patent Application No. 2012-123093 proposes a biaxial hinge that allows the first housing and the second housing to be opened 180 degrees in the up and down direction, for a total of 360 degrees. Although the invention of this prior application can also satisfy the practicality at the use level, the present invention further proposes a biaxial hinge which can finely adjust the opening angle.

In view of the above problems, an object of the present invention is to provide a biaxial hinge which enables a first casing and a second casing of a terminal machine such as a notebook computer to be alternately and regularly in an angular range of 0 to 360 degrees. The opening is opened, the opening angle can be finely adjusted, and the stable stop state can be maintained at any opening angle.

To achieve the above object, a biaxial hinge of the present invention opens a first housing opposite to a second housing. Wherein the biaxial hinge comprises a first hinge rod and a second hinge rod, the first hinge rod is assembled to one side of the first housing, and the second hinge rod is assembled to one side of the second housing, the first hinge The rod and the second hinge rod are coupled to each other in a parallel state by at least a first connecting element and a second connecting element, and a first selective rotation limiting means is disposed between the first hinge rod and the second hinge rod A second selective rotation limiting means, the first selective rotation limiting means and the second selective rotation limiting means selectively rotating the first hinge rod and the second hinge rod. The two-axis hinges alternately open the first housing and the second housing in sequence by the first selective rotation limiting means and the second selective rotation limiting means, and are in a closed state from 0 degrees to a fully open state. Open between the next 360 degrees.

Moreover, in order to achieve the above object, a biaxial hinge of the present invention opens a first casing and a second casing. Wherein the biaxial hinge comprises a first hinge rod and a second hinge rod, the first hinge rod is assembled to one side of the first housing, and the second hinge rod is assembled to one side of the second housing, the first hinge The rod and the second hinge rod are coupled to each other in a parallel state by at least a first connecting element and a second connecting element, and a first selective rotation limiting means is disposed between the first hinge rod and the second hinge rod a second selective rotation limiting means, and the first selective rotation limiting means and the second selective rotation limiting means are provided with a friction torque generating means, the first selective rotation limiting means and the second selective rotation limiting means making the first The hinge rod and the second hinge rod are selectively rotated. The biaxial hinge alternates the first housing and the second housing sequentially with a specific frictional moment by the first selective rotation limiting means and the second selective rotation limiting means 阖, and open between 0 degrees in the closed state and 360 degrees in the fully open state.

Moreover, in order to achieve the above object, a biaxial hinge of the present invention opens a first housing opposite to a second housing. Wherein the biaxial hinge comprises a first hinge rod and a second hinge rod, the first hinge rod is assembled to one side of the first housing, and the second hinge rod is assembled to one side of the second housing, the first hinge The rod and the second hinge rod are coupled to each other in a parallel state by at least a first connecting element and a second connecting element, and a first selective rotation limiting means is disposed between the first hinge rod and the second hinge rod a second selective rotation limiting means and a suction means, the first selective rotation limiting means and the second selective rotation limiting means selectively rotating the first hinge rod and the second hinge rod, and the attracting means makes the first hinge The rod and the second hinge rod automatically rotate at a particular opening angle. The two-axis hinge is configured to alternately open the first housing and the second housing in sequence by the first selective rotation limiting means and the second selective rotation limiting means, and is turned from 0 degree to fully open in the closed state. The opening is performed between 360 degrees in the state, and at the same time, the first casing and the second casing are automatically opened at a specific opening angle.

At this time, in an embodiment, the first selective rotation restricting means includes a locking member, a first A-locking cam member and a first B-locking cam member. The locking member is slidably disposed between the second connecting member and the sliding guiding member. The sliding guiding member rotatably penetrates the first hinge rod and the second hinge rod, and the lower portion and the upper portion of the locking member respectively have a a first cam protrusion and a second cam protrusion. The first A-locking cam element and the first B-locking cam element are respectively engaged with the locking element and are respectively engaged by the first hinge rod and the second hinge rod. The first A-locking cam element has a first A cam recess and a first a B cam recess, and the first B-lock cam member has a second A cam recess and a second B cam recess.

Further, in an embodiment, the second selective rotation limiting means comprises a second A-locking cam element and a second B-locking cam element, a moving stop, and a first stop lever and a first Two stop levers. The second A-lock cam element and the second B-lock cam element are respectively assembled to the first hinge rod and the second hinge rod, and are respectively restricted from rotating by the first hinge rod and the second hinge rod. The moving stopper is rotatably disposed between the second A-locking cam member and the second B-locking cam member, and the moving stopper is engaged with the second A-locking cam member and the second B-locking cam according to the rotation angle thereof element. The first stopping rod and the second stopping rod are respectively rotatably disposed on the first hinge rod and the second hinge rod and are engaged with the movement stopping member, wherein the first stopping rod and the second stopping rod are respectively a first A elastic means and a first B elastic means are crimped to the second A The locking cam member and the second B locking cam member.

Further, in an embodiment, the friction torque generating means comprises a first A friction washer portion and a first B friction washer portion, and a second A friction washer portion and a second B friction washer portion. The first A friction washer portion and the first B friction washer portion are disposed between the first connecting member and a friction plate, and the first hinge rod and the second hinge rod are rotatably disposed through the friction plate, and the first A friction washer portion And the first B friction washer portion is respectively restricted by the first hinge rod and the second hinge rod. The second A friction washer portion and the second B friction washer portion are disposed between the friction plate and the second selective rotation restricting means, and the second A friction washer portion and the second B friction washer portion are respectively the first hinge rod and The second hinge rod limits rotation.

Further, in an embodiment, the attraction means comprises a sliding guiding element, a first A bending cam recess and a first B bending cam recess, a second A bending cam recess and a second B bending cam recess, a first cam follower and a second cam follower, and a second A elastic means and a second B elastic means. The first hinge rod and the second hinge rod are rotatably disposed through the sliding guide member. The first A-bend cam recess, the first B-bend cam recess, the second A-bend cam recess, and the second B-bend cam recess are respectively disposed corresponding to the first hinge lever and the second hinge lever positioned on the slide guiding member. The first cam follower has a first A curved cam protrusion and a first B curved cam protrusion, and the first A curved cam protrusion and the first B curved cam protrusion are respectively associated with the first A curved cam recess And corresponding to the first B bending cam recess. The second cam follower has a second A-curved cam projection and a second B-curved cam projection, and the second A-curved cam projection and the second B-curved cam projection are respectively associated with the second A-curved cam recess And the second B bending cam recess is correspondingly disposed, the first hinge bar and the second hinge bar respectively restrict rotation of the first cam follower and the second cam follower and respectively make the first cam follower and the second cam from The moving member moves in the axial direction. The second A elastic means and the second B elastic means are respectively disposed on the first hinge bar and the second hinge bar corresponding to the first cam follower and the second cam follower.

Further, in order to achieve the above object, a biaxial hinge of the present invention further includes a stopping means, the stopping means having a first stopping piece, a second stopping piece, a first stopping part and a second Stop section. The first stop piece and the second stop piece are respectively disposed on the outer circumferences of the first A-lock cam element and the first B-lock cam element, and the first stop part and the second stop part are disposed on the sliding guide element .

Furthermore, in order to achieve the above object, a terminal device of the present invention uses the above A biaxial hinge as claimed in any of the preceding claims.

According to the configuration of the biaxial hinge of the present invention, the first hinge rod and the second hinge rod are alternately rotated by the operation of the first selective rotation restricting means and the second selective rotation restricting means, so that The first housing and the second housing may alternately and regularly perform selective opening within an angular range of 0 to 360 degrees.

Moreover, according to the configuration of a biaxial hinge of the present invention, the first hinge rod and the second hinge rod are alternately rotated by the operation of the first selective rotation restricting means and the second selective rotation restricting means to make the first shell The body and the second housing can alternately and regularly perform selective opening within an angular range of 0 to 360 degrees, and at the same time, by the operation of the friction torque generating means, the rotational torque is controlled to be opened during operation The operational feeling is relatively clear, and the first housing and the second housing can be kept stopped at any opening angle.

Moreover, according to the configuration of a biaxial hinge of the present invention, the first hinge rod and the second hinge rod are alternately rotated by the operation of the first selective rotation restricting means and the second selective rotation restricting means to make the first shell The body and the second housing may alternately and regularly perform selective opening in an angular range of 0 to 360 degrees, and at the same time, the first housing and the second housing may be specific by the operation of the attraction means The opening angle is automatically forced in the opening direction, and the click feeling at the stop is transmitted to the operator.

Further, according to an embodiment of the present invention, the first hinge bar and the second hinge bar are alternately and regularly selected by the operation of the first selective rotation limiting means and the second selective rotation limiting means Rotating so that the first housing and the second housing can be alternately opened within an angle range of 0 to 360 degrees, while the first selective rotation limiting means is by the locking member, the first A-locking cam member and the first A B lock cam member is disposed to control rotation of the first hinge bar and the second hinge bar between the second link member and the slide guide member. The locking element is slidably disposed between the first hinge rod and the second hinge rod in the up-and-down direction, and has a first cam protrusion and a second cam protrusion respectively below and above the locking element, the first A The locking cam member and the first B-locking cam member are respectively engaged with the locking member and are respectively engaged by the first hinge rod and the second hinge rod. The first A-lock cam member has a first A cam recess and a first B cam. a recess, and the first B-lock cam member has a second A cam recess and a second B cam recess.

Further, according to an embodiment of the present invention, the first hinge rod and the first The two hinge rods are alternately rotated by the operation of the first selective rotation limiting means and the second selective rotation limiting means, so that the first housing and the second housing can alternate between 0 degrees and 360 degrees The selective opening is performed regularly, and the second selective rotation limiting means is performed by the second A locking cam member and the second B locking cam member, the moving stopper, and the first stopping lever and the second stopping The setting of the moving rod cooperates with the first selective rotation limiting means to control the rotation of the first hinge rod and the second hinge rod. The second A-locking cam element and the second B-locking cam element are respectively assembled to the first hinge rod and the second hinge rod, and are respectively restricted by the first hinge rod and the second hinge rod, and the movement stopper is rotated. Between the second A-locking cam element and the second B-locking cam element, the moving stop is engaged with the second A-locking cam element and the second B-locking cam element according to the angle of rotation thereof, the first stop The rod and the second stopping rod are respectively rotatably disposed on the first hinge rod and the second hinge rod and are engaged with the moving stopper, and the first stopping rod and the second stopping rod are respectively respectively by a first A The elastic means and a first B elastic means are crimped to the second A-lock cam element and the second B-lock cam element.

Further, according to the configuration of an embodiment of the present invention, by the operation of the friction torque generating means, the first hinge rod and the second hinge rod will generate a friction torque when rotating, so the first housing and the second housing are When each of the opening operations is performed, it can be stably maintained at a stop state at an arbitrary opening angle.

Further, according to an embodiment of the present invention, when one of the first hinge lever or the second hinge lever is rotated by the opening operation of the first housing and the second housing by the operation of the attraction means, In the open position and the closed position, the first hinge rod and the second hinge rod are simultaneously operated by the elastic means to make the first A bending cam protrusion, the first B bending cam protrusion and the second A bending cam protrusion The second B curved cam protrusions respectively fall into the first A curved cam recess, the first B curved cam recess and the second A curved cam recess, and the second B curved cam recess, thereby making the first housing and the second The housing is subjected to the attraction effect before the specific opening angle is reached, and the specific opening angle can be confirmed with a clear click feeling.

Further, according to the configuration of a biaxial hinge of the present invention, the first housing and the second housing can be stably maintained in a stopped state at a specific opening angle by the operation of the stopping means.

Furthermore, the present invention also provides that the first housing and the second housing can be alternated and The opening of a specific angle is regularly performed, and the total number of terminals that can be opened up to 360 degrees in total is available.

1‧‧‧Note Computer

10‧‧‧First hinge rod

10a, 12a‧‧‧ Assembly board

10b, 11b, 12b, 13a, 13b‧‧‧ assembly holes

10c, 12c‧‧‧ first circular shaft

10d, 12d‧‧‧second circular shaft

10e, 12e‧‧‧ first deformation axis

10f, 12f‧‧‧ second deformation shaft

10g, 12g‧‧‧ external thread

10h, 12h‧‧‧assembly pin

11‧‧‧First assembled board

12‧‧‧Second hinge rod

13‧‧‧Second assembled board

14‧‧‧ First connecting element

14a‧‧‧First A bearing bore

14b‧‧‧First B bearing bore

15‧‧‧ Friction torque generation means

15a‧‧‧First friction torque generation means

15b‧‧‧Second friction torque generation means

16‧‧‧ Friction plate

16a‧‧‧Second A bearing bore

16b‧‧‧Second B bearing hole

16c, 37f‧‧‧ threaded holes

17‧‧‧First A Friction Washer

17a, 17b, 17c, 18a, 18b, 18c‧‧‧ friction washers

17d, 18d, 19b, 20b‧‧‧ oil storage department

17e, 18e, 19a, 20a, 24c, 25c, 34a, 35a, 38a, 39a, 42a, 43a‧‧‧ deformed through holes

18‧‧‧First B Friction Washer

19‧‧‧Second A Friction Washer

2‧‧‧First housing

2a‧‧‧ Keyboard Department

2b, 3b‧‧‧ housing recess

20‧‧‧Second B Friction Washer

21‧‧‧Sliding guide elements

21a, 37a‧‧‧ first bearing

21b, 37b‧‧‧second bearing

21c, 37c‧‧‧ link

21d‧‧‧Third A bearing bore

21e‧‧‧3rd B bearing hole

21f‧‧‧First stop

21g‧‧‧second stop

22‧‧‧First selective rotation limit

22a‧‧‧First A selective rotation limit

22b‧‧‧First B selective rotation limit

23‧‧‧Second selective rotation limit

23a‧‧‧Second A selective rotation restriction

23b‧‧‧Second B selective rotation restriction

24‧‧‧Second A locking cam element

24a, 25a‧‧‧ one side face

24b, 25b‧‧‧the other side

25‧‧‧Second B locking cam element

26‧‧‧Moving stop

26a, 28a, 29a, 30a, 31a, 32a, 33a, 40a, 41a, 6b‧‧‧ through holes

26b‧‧‧Cylinder

26c‧‧‧Clocks

26c1‧‧‧First engagement

26c2‧‧‧Second engagement department

26c3‧‧ Third third joint

26c4‧‧ Fourth Clamping Department

26d‧‧‧ card stop

27‧‧‧Stop fasteners

27a, 32c, 33c‧‧‧Flange

27b‧‧‧Axis

28‧‧‧First stop lever

28b, 29b‧‧‧ Body Department

28c, 29c‧‧‧ push tablets

28d, 29d‧‧‧ protrusions

29‧‧‧Second stop lever

3‧‧‧ second housing

3a‧‧‧Display Department

30‧‧‧First A elastic means

31‧‧‧First B elastic means

32‧‧‧First spacer element

32b, 33b‧‧‧ tube

33‧‧‧Second spacer element

34‧‧‧First A-locking cam element

34b‧‧‧First A cam recess

34c‧‧‧Second A cam recess

34d‧‧‧First stop piece

35‧‧‧First B locking cam element

35b‧‧‧First B cam recess

35c‧‧‧Second B cam recess

35d‧‧‧second stop piece

36‧‧‧Locking components

36a‧‧‧First cam lobe

36b‧‧‧Second cam projection

36c‧‧‧First guiding groove

36d‧‧‧Second guiding groove

37‧‧‧Second connection element

37d‧‧‧Four A bearing bore

37e‧‧‧Four B bearing bore

37g‧‧‧Protruding

37h‧‧‧First A Bending Cam Recess

37i‧‧‧First B bending cam recess

37j‧‧‧Second A curved cam recess

37k‧‧‧Second B bending cam recess

38‧‧‧First cam follower

38b‧‧‧First A curved cam lobe

38c‧‧‧First B curved cam lobe

39‧‧‧Second cam follower

39b‧‧‧Second A curved cam projection

39c‧‧‧Second B bending cam projection

4, 5‧‧‧ biaxial hinge

40‧‧‧Second A elastic means

40b, 41b‧‧‧ disc spring

41‧‧‧Second B elastic means

42‧‧‧First push washer

43‧‧‧Second push washer

44‧‧‧First lock nut

45‧‧‧Second lock nut

46‧‧‧ attraction

46a‧‧‧First attraction

46b‧‧‧second attraction

47‧‧‧stop means

47a‧‧‧first stop means

47b‧‧‧second stop means

6, 8‧‧‧ Hinged shell

6a‧‧‧ next door

7‧‧‧Assembled screws

A~h‧‧‧ditch

i~s‧‧‧ card stop

1 is a schematic view of a notebook computer as an example of a terminal machine, which is assembled with a biaxial hinge of the present invention, wherein (a) is a squint when the second housing is in an open state with respect to the first housing as viewed from the front. (b) is a perspective view when the first casing and the second casing are in a closed state as viewed from the rear.

Figure 2 is a perspective view of the biaxial hinge of the present invention.

Figure 3 is a front elevational view of the biaxial hinge of the present invention.

Figure 4 is an exploded perspective view of the biaxial hinge of the present invention.

Figure 5 is a schematic view of the second A-lock cam member of the biaxial hinge of the present invention, wherein (a) is a plan view, (b) is a side view, and (c) is a cross-sectional view taken along line A-A of (b).

Figure 6 is a schematic view of the second B-lock cam member of the biaxial hinge of the present invention, wherein (a) is a plan view, (b) is a side view, and (c) is a cross-sectional view taken along line B-B of (b).

Figure 7 is a perspective view of the moving stopper of the biaxial hinge of the present invention.

Figure 8 is a schematic view showing the first stopper rod and the second stopper rod of the biaxial hinge of the present invention, wherein (a) is a plan view and (b) is a perspective view.

Figure 9 is a perspective view of the first A elastic means and the first B elastic means of the biaxial hinge of the present invention.

Figure 10 is a perspective view of the first spacer member and the second spacer member of the biaxial hinge of the present invention.

Figure 11 is a perspective view of the sliding guide member of the biaxial hinge of the present invention.

Figure 12 is a perspective view of the first A-lock cam member and the first B-lock cam member of the biaxial hinge of the present invention.

Figure 13 is a schematic view of the locking element of the biaxial hinge of the present invention, wherein (a) is a side view, (b) is an oblique view.

Figure 14 is a schematic view of the second coupling member of the biaxial hinge of the present invention, wherein (a) is a side view and (b) is a perspective view.

Figure 15 is a schematic view of the first cam follower above the biaxial hinge of the present invention, wherein (a) is a side view and (b) is a perspective view.

Figure 16 is a schematic view of the second cam follower below the biaxial hinge of the present invention, wherein (a) is a side view and (b) is a perspective view.

Figure 17 is a schematic view of the hinge housing of the biaxial hinge of the present invention, wherein (a) is a side view and (b) is a cross-sectional view along line C-C of (a).

Figure 18 is an explanatory view of the state of the biaxial hinge of the present invention before the start of operation, that is, when the second casing is in a closed state with an angle of 0 degrees with respect to the first casing, wherein (a) is the first choice A schematic diagram of the state of the sexual rotation limiting means, (b) is a state diagram of the second selective rotation limiting means, and (c) is a partially enlarged schematic view of (b).

Figure 19 is a view showing a state in which the biaxial hinge of the present invention is in operation, that is, a state in which the second casing is opened from 0 degrees to 90 degrees from the closed state with respect to the first casing, wherein (a (b) is a state diagram of the first selective rotation restricting means, (b) is a state diagram of the second selective rotation restricting means, and (c) is a partially enlarged schematic view of (b).

Figure 20 is a view showing a state in which the biaxial hinge of the present invention is in operation, that is, a state in which the opening angle of the second casing with respect to the first casing is 90 degrees, wherein (a) is the first selective rotation A schematic diagram of the state of the restriction means, (b) is a state diagram of the second selective rotation restriction means, and (c) is a partially enlarged schematic view of (b).

Figure 21 is a state in which the biaxial hinge of the present invention is in operation, that is, a state in which the second housing is opened from 90 degrees to 180 degrees with respect to the first housing, wherein (a) is the first a schematic diagram of the state of the selective rotation limiting means, and (b) is a second selective rotation limiting means State diagram.

Figure 22 is a view showing a state in which the biaxial hinge of the present invention is in operation, that is, a state in which the opening angle of the second casing with respect to the first casing is 180 degrees, which reverses the state shown in Figure 21 The hour hand is rotated by 90 degrees, wherein (a) is a state diagram of the first selective rotation restricting means, (b) is a state diagram of the second selective rotation restricting means, and (c) is a partially enlarged schematic view of (b).

Figure 23 is a view showing the state of the biaxial hinge of the present invention in operation, that is, a state in which the second casing is opened from 180 degrees to 270 degrees with respect to the first casing, wherein (a) is the first A schematic diagram of the state of the selective rotation limiting means, and (b) is a schematic diagram of the state of the second selective rotation limiting means.

Figure 24 is a state in which the biaxial hinge of the present invention is in operation, that is, a state in which the opening angle of the second housing with respect to the first housing is 270 degrees, wherein (a) is the first selective rotation A schematic diagram of the state of the restriction means, and (b) is a schematic diagram of the state of the second selective rotation restriction means.

Figure 25 is a view showing the state of the biaxial hinge of the present invention in operation, that is, a state in which the second casing is opened from 270 degrees to 360 degrees with respect to the first casing, wherein (a) is the first A schematic diagram of the state of the selective rotation limiting means, and (b) is a schematic diagram of the state of the second selective rotation limiting means.

Figure 26 is a view showing a state in which the biaxial hinge of the present invention is in operation, that is, a state in which the opening angle of the second casing with respect to the first casing is 360 degrees, which rotates the state shown in Figure 24 90 degrees, wherein (a) is a state diagram of the first selective rotation limiting means, and (b) is a state diagram of the second selective rotation limiting means.

Hereinafter, an embodiment of a notebook computer in which a biaxial hinge of the present invention is used in one example of a terminal device will be described with reference to the related drawings. It should be particularly noted that the present invention The two-axis hinge can be used only on a notebook computer, and can also be used on other terminal devices such as a mobile computer or a personal digital assistant (PDA), as long as the terminal device has a first housing and a first connection. The two casings may have an angle range in which the first casing and the second casing are relatively open to the upper and lower directions by 180 degrees or more.

Embodiment 1 (a) and (b) of FIG. 1 are schematic views of a notebook computer 1 using a biaxial hinge of the present invention, and the notebook computer 1 is an example of a terminal machine. The notebook computer 1 includes a first casing 2 provided with a keyboard portion 2a and a second casing 3 provided with a display portion 3a, and the pair of biaxial hinges 4 and 5 of the present invention are openably coupled to the first casing The left and right ends of the body 2 and the second casing 3 are respectively rearward.

Since the configurations of the biaxial hinges 4 and 5 are the same, only the configuration of one of the biaxial hinges 4 will be described below, and the other biaxial hinge 5 will not be described. Of course, in other embodiments, the biaxial hinge 5 can also adopt other different configurations as long as it does not affect the operation.

2 to 17 are schematic views of a biaxial hinge 4 according to an embodiment of the present invention. Wherein, as particularly shown in Figures 2 to 4, the elements labeled 10 and 12 are the first hinge rod and the second hinge rod, respectively. Here, the description will be made first from the configuration of the first hinge rod 10. As shown in FIG. 4, the first hinge lever 10 is composed of an assembled plate portion 10a, a first circular shaft portion 10c, a second circular shaft portion 10d, a first deformed shaft portion 10e, a second deformed shaft portion 10f, and an external thread. The part 10g is composed. One end of the assembled plate portion 10a has a flat cross section, and the surface of the assembled plate portion 10a is provided with assembly holes 10b, 10b, 10b, and the first circular shaft portion 10c is connected to the assembled plate portion 10a, and the second The circular shaft portion 10d is connected to the first circular shaft portion 10c, and the first deformed shaft portion 10e is connected to the second circular shaft portion 10d. The diameter of the first deformed shaft portion 10e is slightly smaller than the second circular shape. The shaft portion 10d has a slightly elliptical cross section, and the second deforming shaft portion 10f is connected to the first deforming shaft portion 10e. The diameter of the second deforming shaft portion 10f is smaller than the first deforming shaft portion 10e, and the second deforming axis Similarly to the first deforming shaft portion 10e, the cross section of the portion 10f is slightly elliptical, and the male screw portion 10g is connected to the second deforming shaft portion 10f.

The first assembly plate 11 is assembled to the assembly plate portion 10a, and the first assembly plate 11 passes through the assembly holes 10b, 10b, 10b of the first hinge bar 10 through the assembly pins 10h, 10h, 10h having the flange portions, respectively. The assembly holes (not shown) of the first assembly plate 11 are fixed to one end of each of the assembly pins 10h, 10h, and 10h, and assembled to the assembly plate portion 10a. In addition, the first assembled board 11 The assembly shafts 11b, 11b, which are not shown, are assembled through the assembly holes 11b, 11b, ... (only a part of which is shown) of the first assembly board 11, and are assembled on the upper surface of the first casing 2. Among them, the assembly pins 10h, 10h, 10h can also be replaced by assembly screws.

Next, the element denoted by reference numeral 12 is a second hinge rod, and the second hinge rod 12 is arranged in parallel with respect to the first hinge rod 10 in the vertical direction. Specifically, as shown in FIG. 4, the second hinge lever 12 is composed of the assembled plate portion 12a, the first circular shaft portion 12c, the second circular shaft portion 12d, the first deformed shaft portion 12e, the second deformed shaft portion 12f, and the outside. The threaded portion 12g is formed. One end of the assembled plate portion 12a has a flat cross section, and the surface of the assembled plate portion 12a is provided with assembly holes 12b, 12b, and 12b, and the first circular shaft portion 12c is connected to the assembled plate portion 12a, and the second The circular shaft portion 12d is connected to the first circular shaft portion 12c, and the first deformation shaft portion 12e is connected to the second circular shaft portion 12d. The diameter of the first deformation shaft portion 12e is slightly smaller than the second circular shape. The shaft portion 12d has a slightly elliptical cross section, and the second deforming shaft portion 12f is connected to the first deforming shaft portion 12e. The diameter of the second deforming shaft portion 12f is smaller than the first deforming shaft portion 12e, and the second deforming axis Similarly to the first deforming shaft portion 12e, the cross section of the portion 12f is slightly elliptical, and the male screw portion 12g is connected to the second deforming shaft portion 12f.

The second assembly plate 13 is assembled to the assembly plate portion 12a, and the second assembly plate 13 passes through the assembly holes 12b, 12b, and 12b of the second hinge rod 12 through the assembly pins 12h, 12h, and 12h having the flange portions, respectively. The assembly holes 13a, 13a, and 13a of the second assembled board 13 are brought into close contact with one of the assembly pins 12h, 12h, and 12h to be assembled to the assembled board portion 12a. Further, the second assembled board 13 is assembled to the lower surface of the second casing 3 by passing assembly screws (not shown) through the assembly holes 13b, 13b, ... provided in the second assembled board 13. Among them, the assembly pins 12h, 12h, 12h can also be replaced by assembly screws.

Further, as shown in FIGS. 2 and 3, the second circular shaft portions 10d and 12d of the first hinge rod 10 and the second hinge rod 12 are pivotally supported by the first A bearing hole 14a and the first portion, respectively. a B bearing hole 14b, a second A bearing hole 16a and a second B bearing hole 16b, a third A bearing hole 21d and a third B bearing hole 21e, and a fourth A bearing hole 37d and a fourth B bearing hole 37e, and The first hinge lever 10 and the second hinge lever 12 are disposed in parallel with each other and rotatably provided. The first A bearing hole 14a and the first B bearing hole 14b are disposed on the upper and lower sides of the first coupling element 14, and the second A bearing hole 16a and the second B bearing hole 16b are paired and disposed in a friction torque to be described later. The upper and lower sides of the friction plate 16 of the generating means 15, the third A bearing hole 21d and the third B bearing hole 21e are paired and disposed on the sliding guiding member 21 of the first selective rotation restricting means 22. The upper and lower sides, the fourth A bearing hole 37d and the fourth B bearing hole 37e are paired and disposed on the upper and lower sides of the second connecting member 37 of the suction means 46. At the same time, the first hinge rod 10 and the second hinge rod 12 are assembled to the first housing 2 and the second housing 3 by the first assembly board 11 and the second assembly board 13, respectively, so that the first housing 2 is When the second casing 3 is in the closed state, the first assembled plate 11 and the second assembled plate 13 are made to be perpendicular to the axial direction and parallel to each other.

Next, as shown in FIG. 1 to FIG. 4 and FIG. 17, the symbol designated as 6 is a hinge housing for accommodating the first connecting member assembled by the first hinge rod 10 and the second hinge rod 12. After the 14th part.

As shown in FIG. 2 and FIG. 17, the hinge housing 6 is cylindrical and has a long hole in cross section. The inside of the hinge housing 6 accommodates friction assembled on the first hinge rod 10 and the second hinge rod 12. The torque generating means 15, the second selective rotation restricting means 23, the first selective rotation restricting means 22, the stopping means 47, and the attracting means 46, as shown in Fig. 17, are provided with a through hole 6b inside the hinge housing 6. The partition wall 6a is assembled to the female screw hole 37f via the assembling screw 7, and the female screw hole 37f is located in the protruding portion 37g provided at the central portion of the second connecting member 37 of the first selective rotation restricting means 22. Further, as shown in FIG. 2, the hinge housing 6 is housed in the housing recesses 2b and 3b provided in the first housing 2 and the second housing 3. Further, the other hinge housing 8 is also constructed in the same manner as the hinge housing 6.

Next, the configuration of the first selective rotation restricting means 22 will be described. As shown in FIG. 4, the first selective rotation restricting means 22 is constituted by a first A selective rotation restricting means 22a and a first B selective rotation restricting means 22b, wherein the first A selective rotation restricting means 22a is located at the Below the hinge rod 10, the first B selective rotation restricting means 22b is located above the first hinge rod 10, however, the first A selective rotation restricting means 22a and the first B selective rotation restricting means 22b constitute a vertical symmetry. Other than the rest, the composition is the same, so it is unified here. The first selective rotation restricting means 22 is constituted by the second coupling member 37, the locking member 36, the sliding guide member 21, and the pair of first A-lock cam members 34 and the first B-lock cam member 35. The second connecting member 37 has a first bearing portion 37a and a second bearing portion 37b, and a connecting portion 37c. The side surface of the second connecting member 37 is approximately in the shape of a gourd, wherein the first bearing portion 37a and the second bearing portion 37b are respectively located The second connecting element 37 has a substantially disk shape above and below, and the connecting portion 37c connects the first bearing portion 37a and the second bearing portion 37b. The first bearing portion 37a and the second bearing portion 37b are respectively provided with a fourth A-axis having a circular cross section. The through hole 37d and the fourth B bearing hole 37e, the second deforming shaft portion 10f of the first hinge rod 10 and the second deforming shaft portion 12f of the second hinge rod 12 are respectively rotatably penetrated and the shaft pivot is received by the fourth A A bearing hole 37d and a fourth B bearing hole 37e. The second connecting member 37 is further provided with a protruding portion 37g. The protruding portion 37g is provided with a female screw hole 37f. As described above, the protruding portion 37g is assembled to the partition wall 6a of the hinge housing 6 by assembling the screw 7.

As shown in FIGS. 13(a) and (b), the left and right sides of the central portion of the locking member 36 have a first cam convex portion 36a and a second cam convex portion 36b, respectively, and the locking member 36 is further provided with a first guide. In the guiding groove 36c and the second guiding groove 36d, the first guiding groove 36c and the second guiding groove 36d are interposed with the first cam convex portion 36a and the second cam convex portion 36b. Further, the coupling portion 37c of the second coupling member 37 is fitted into the first guiding groove 36c of the locking member 36 to guide the sliding operation of the locking member 36 in the up and down direction.

As shown in FIG. 11, the sliding guide member 21 has a first bearing portion 21a and a second bearing portion 21b, and a coupling portion 21c. The sliding guide member 21 has a gourd shape, wherein the first bearing portion 21a and the second bearing portion 21b Each of them is located above and below the sliding guide element 21 and has a substantially disk shape, and the connecting portion 21c connects the first bearing portion 21a and the second bearing portion 21b. The first bearing portion 21a and the second bearing portion 21b are respectively provided with a third A bearing hole 21d and a third B bearing hole 21e, a first deformation shaft portion 10e of the first hinge rod 10 and a first deformation of the second hinge rod 12 The shaft portions 12e are respectively penetrating and rotatably received by the third A bearing hole 21d and the third B bearing hole 21e. The joint portion 21c is fitted into the second guide groove 36d of the lock member 36 to guide the sliding operation of the lock member 36 in the up and down direction. The outer peripheral edges of the first bearing portion 21a and the second bearing portion 21b of the sliding guide member 21 are respectively provided with a first stopper portion 21f and a second stopper portion 21g in the axial direction.

Next, the first A-lock cam element 34 and the first B-lock cam element 35 are provided in pairs, and the first A-lock cam element 34 located below and the first B-lock cam element 35 located above are respectively provided with deformation The through holes 34a and 35a, the first hinge shafts 10 and 12e of the first hinge rod 10 and the second hinge rod 12 are respectively engaged with the deformation through holes 34a and 35a so that the first A lock cam member 34 and The first B-lock cam member 35 is restricted in rotation by the first hinge shaft portion 10e of the first hinge lever 10 and the second hinge lever 12 and the first deformation shaft portion 12e, respectively. The first A-lock cam member 34 and the first B-lock cam member 35 are bilaterally symmetrical and identical in shape, as shown in particular in FIG. 12, the first A-lock cam member 34 and the first B-lock cam member. The outer circumference of 35 is provided with a first A cam recess 34b, a second A cam recess 34c, a first B cam recess 35b, and a second B cam recess 35c, respectively, at both ends in the axial direction at intervals of 90 degrees. The first A-lock cam member 34 and the first B-lock cam member 35 are disposed on one side of the sliding guide member 21, and are respectively provided with a first stopper piece 34d and a second stopper piece 35d. When assembled, the first The stopper piece 34d and the second stopper piece 35d abut against the first stopper portion 21f and the second stopper portion 21g provided by the slide guiding member 21 in accordance with the rotation angle thereof. Further, the first A-lock cam member 34 and the first B-lock cam member 35 are interposed between the second coupling member 37 and the sliding guide member 21 and sandwiched in the axial direction, and the first A-lock cam member 34 and the first B-locking cam member 35 are respectively located above and below the locking member 36 and sandwich the locking member 36. Further, the first A cam cam portion 34 and the first A cam recess portion 34b, the second A cam recess portion 34c, the first B cam recess portion 35b, and the second B cam recess portion 35c of the first A lock cam member 34 are rotated according to the first A cam recess portion 34b. The first cam convex portion 36a and the second cam convex portion 36b of the lock member 36 are opposed to each other at an angle.

Next, as shown in FIGS. 2 to 4, the second selective rotation restricting means 23 is constituted by the second A selective rotation restricting means 23a and the second B selective rotation restricting means 23b, and the second A selective rotation restricting The means 23a is disposed on one side of the first hinge rod 10 and located below, and the second B selective rotation restricting means 23b is disposed on one side of the second hinge rod 12 and located above, and the second A selective rotation restricting means 23a and the The two B selective rotation restricting means 23b are adjacent to the second A friction washer portion 19 and the second B friction washer portion 20, respectively. The second A selective rotation restricting means 23a located below and the second B selective rotation restricting means 23b located above are all identical except that they are respectively vertically symmetrical, and therefore will be described together. The second selective rotation restricting means 23 is composed of a second A-locking cam member 24 and a second B-locking cam member 25, a moving stopper 26, a first spacing member 32 and a second spacing member 33, and a first A elastic means 30. The first B elastic means 31 and the first stop lever 28 and the second stop lever 29 are formed. Wherein, the second A-lock cam element 24 and the second B-lock cam element 25 are paired and the central portion axial direction is respectively provided with the deformation through-holes 24c and 25c, and the first deformation of the first hinge rod 10 and the second hinge rod 12 The shaft portions 10e and 12e are respectively engaged with the deformation through holes 24c and 25c. The movement stopper 26 is fastened between the second A-lock cam element 24 and the second B-lock cam element 25, and the movement stopper 26 is rotatably assembled to the central portion of the friction plate 16 through the stopper fixing member 27. The internally threaded hole 16c is provided. The first spacer element 32 and the second spacer element 33 respectively have The tubular portions 32b and 33b, the through holes 32a and 33a, and the flange portions 32c and 33c are formed, and the first deformed shaft portions 10e and 12e are respectively fitted through the through holes 32a and 33a. The first A elastic means 30 and the first B elastic means 31 are respectively formed of disc springs and have through holes 30a and 31a, respectively, and the first spacer element 32 and the tubular portions 32b and 33b of the second spacer element 33 are respectively penetrated. The through holes 30a and 31a are provided on one side of the flange portions 32c and 33c. The first stopping lever 28 and the second stopping lever 29 are connected to the first A elastic means 30 and the first B elastic means 31, and the cylindrical parts 32b and 33b respectively penetrate the first stopping lever 28 and the second stopping lever Each of the through holes 28a and 29a is provided, and the first stopper lever 28 and the second stopper lever 29 are disposed between the second A lock cam member 24 and the second B lock cam member 25.

As shown in FIGS. 5 and 6, the outer peripheral edges of the one side surface portions 24a and 25a of the second A-lock cam member 24 and the second B-lock cam member 25 are provided with a groove portion a to a groove portion d and a groove portion e to a groove portion h, respectively. And the other side surface portions 24b and 25b are respectively provided with a plurality of locking portions i to a locking portion m and a locking portion n to a locking portion s, and the groove portion a to the groove portion d and the groove portion e to the groove portion h are first Although the position of one side of the hinge lever 10 and the side of the second hinge lever 12 are the same, the shape of the locking portion i to the locking portion m and the locking portion n to the locking portion s are slightly different. The shape of the locking portion i to the locking portion m and the locking portion n to the locking portion r are designed to be different, as will be described later because of the rotation directions of the first hinge lever 10 and the second hinge lever 12. It will vary depending on the opening direction of the first casing 2 and the second casing 3.

As shown in Fig. 7, the movement stopper 26 is composed of a tubular portion 26b, a pair of engaging pieces 26c and 26c, and a pair of locking pieces 26d and 26d, wherein the central portion of the cylindrical portion 26b is axially oriented. A through hole 26a is provided, and the engaging pieces 26c and 26c are protruded outward at an outer circumference of the tubular portion 26b at an interval of 180 degrees, and the locking pieces 26d and 26d are arc-shaped and protruded in the axial direction. Engagement pieces 26c and 26c. The shaft portion 27b of the stopper fixing member 27 having the flange portion 27a penetrates through the through hole 26a of the movement stopper 26, so that the movement stopper 26 can pivot about the shaft portion 27b of the stopper fixing member 27 as a center. . Further, the engaging pieces 26c and 26c are further provided with a first engaging portion 26c1, a second engaging portion 26c2, a third engaging portion 26c3, and a fourth engaging portion 26c4.

The first stopper rod 28 and the second stopper rod 29 are paired and have the same shape. Specifically, as shown in FIGS. 8(a) and 8(b), the annular body portions 28b and 29b are respectively provided with through holes 28a. And the pressing pieces 28c and 29c are respectively protruded outward in the direction of 29a, and the body portions 28b and 29b are respectively provided with the pair of protrusions 28d and 28d at intervals of 180 degrees. 29d and 29d, and the cylindrical portions 32b and 33b of the first spacer element 32 and the second spacer element 33 pass through the through holes 28a and 29a, respectively.

As shown in FIG. 10, the first spacer member 32 and the second spacer member 33 are paired and have the same shape, and are respectively provided with the cylindrical portions 32b and 33b and the flange portions 32c and 33c, wherein the cylindrical portions 32b and 33b are respectively provided. There are through holes 32a and 33a, and flange portions 32c and 33c are provided in the cylindrical portions 32b and 33b, respectively, and the first deformed shaft portion 10e of the first hinge rod 10 and the first deformed shaft portion 12e of the second hinge rod 12 are connected. In the through holes 32a and 33a.

The first A elastic means 30 is arranged in pairs with the first B elastic means 31, as shown in particular in FIG. 9, which is a short-cut conical shape, the first spacer element 32 and the second spacer element 33. The portions 32b and 33b are respectively penetrated through the through holes 30a and 31a provided in the first A elastic means 30 and the first B elastic means 31, and the first A elastic means 30 and the first B elastic means 31 are elastically provided. The main body portions 28b and 29b of the one stopper lever 28 and the second stopper lever 29 are interposed between the first spacer member 32 and the flange portions 32c and 33c of the second spacer member 33. The first A elastic means 30 and the first B elastic means 31 abut against the first stop lever 28 and the second stop lever 29, respectively, so that the second A lock cam member and the second B lock cam member 25 face each other Frictional moments are generated.

Next, a friction torque generating means 15 for causing the first hinge lever 10 and the second hinge lever 12 to generate a friction torque when rotating will be described. The friction torque generating means 15 is composed of a first friction torque generating means 15a and a second friction torque generating means 15b, wherein the first friction torque generating means 15a is located on one side of the first hinge rod 10, and the second friction torque is generated. The means 15b are located on one side of the second hinge rod 12. The friction torque generating means 15 is composed of the friction plate 16, the first A friction washer portion 17, the first B friction washer portion 18, the second A friction washer portion 19 and the second B friction washer portion 20, and the suction means 46 which will be described later. The second A elastic means 40 and the second B elastic means 41 are formed. The side surface of the friction plate 16 is approximately a gourd shape, and the first deformation shaft portions 10e and 12e of the first hinge rod 10 and the second hinge rod 12 are respectively pivotally received by the second A bearing hole 16a provided in the friction plate 16 and The second B bearing hole 16b. The first A friction washer portion 17 and the first B friction washer portion 18 are disposed between one side surface of the friction plate 16 and the first coupling member 14 and are respectively disposed in the central portion axial direction, and the first deformation shaft portion 10e and 12e is respectively engaged with the deformation through hole 17e and the deformation through hole 18e, and in the present embodiment, the first A friction washer portion 17 and the first B friction washer portion 18 are respectively composed of three friction washers 17a, 17b, 17c and 18a, 18b, 18c are constructed. The second A friction washer portion 19 and the second B friction washer portion 20 are provided on the other side of the friction plate 16 and the second A lock cam member 24 and the second B lock of the second selective rotation restricting means 23 to be described later. Between the respective side faces of the cam member 25, the first deforming shaft portions 10e and 12e penetrate through the deformed through holes 19a and 20a provided in the axial direction of the center portion of the second A friction washer portion 19 and the second B friction washer portion 20, respectively. Meanwhile, in the present embodiment, the second A friction washer portion 19 and the second B friction washer portion 20 are each constituted by a friction washer. The second A elastic means 40 and the second B elastic means 41 are used to press the first A friction washer portion 17 and the first B friction washer portion 18 to the friction plate 16, respectively. Further, in Fig. 4, the elements denoted by reference numerals 17d, 18d, 19b, and 20b are oil reservoirs for lubrication.

Next, the attraction means 46 is composed of a first attraction means 46a and a second attraction means 46b, wherein the first attraction means 46a is located below and on one side of the first hinge rod 10, and the second attraction means 46b is located above and The one side of the second hinge rod 12 is the same as the first suction means 46a and the second suction means 46b, and will be described together. The first attraction means 46a and the second suction means 46b are driven by the first A bending cam recess 37h and the first B bending cam recess 37i, the second A bending cam recess 37j and the second B bending cam recess 37k, and the first cam follower 38 and second cam follower 39, second A elastic means 40 and second B elastic means 41, first push washer 42 and second push washer 43, and first lock nut 44 and second The locking nut 45 is constructed. The first A-bend cam recess 37h and the first B-bend cam recess 37i are unequal in size and are respectively disposed on the outer side and the inner side of the side portion of the first joint portion 37a of the second joint member 37, and the second A-bend cam recess 37j and the The two B-bend cam recesses 37k are unequal in size and are provided on the outer side and the inner side of the side portions of the second link portion 37b of the second joint member 37, respectively. The deformed through holes 38a and 39a provided by the first cam follower 38 and the second cam follower 39 are respectively penetrated by the first deformed shaft portions 10f and 12f of the first hinge rod 10 and the second hinge rod 12, respectively. At the same time, the first cam follower 38 has a first A curved cam protrusion 38b and a first B curved cam protrusion 38c of different sizes on the inner side and the outer side of the side surface, and the second cam follower 39 The inner side and the outer side of the side surface are provided with second A curved cam convex portions 39b and second B curved cam convex portions 39c of different sizes, and the first A curved cam convex portion 38b and the first B curved cam convex portion 38c are The first bearing portion 37a of the second connecting member 37 is provided correspondingly to the first A-curved cam recess 37h and the first B-curved cam recess 37i of the outer side and the inner side of the side surface portion, and the second A-curved cam projection 39b and the second B curved cam protrusion 39c are the same as the second connecting member 37 The second bearing portion 37b is provided corresponding to the second A-curved cam recess 37j and the second B-curved cam recess 37k of the outer side and the inner side of the side surface portion having different sizes. The second A elastic means 40 and the second B elastic means 41 are connected to the first cam follower 38 and the second cam follower 39, and the second hinge shaft of the first hinge rod 10 and the second hinge rod 12 10f and 12f are respectively penetrated through the through holes 40a and 41a provided in the axial direction of the central portion of each of the second A elastic means 40 and the second B elastic means 41, and the second A elastic means 40 and the second B elastic means 41 are attached. They are composed of a plurality of disc springs 40b and 41b, respectively. The first pressing washer 42 and the second pressing washer 43 are connected to the second A elastic means 40 and the second B elastic means 41, and the second deforming shaft portion 10f and the second hinge rod 12 of the first hinge rod 10 are provided. The second deforming shaft portion 12f passes through the deformed through holes 42a and 43a provided in the axial direction of the center portion of each of the first pressing washer 42 and the second pressing washer 43, respectively. The first lock nut 44 and the second lock nut 45 are respectively screwed to the external thread portions provided at the free ends of the second deformation shaft portions 10f and 12f of the first hinge rod 10 and the second hinge rod 12 10g and external thread portion 12g.

Further, the stopper means 47 is also constituted by the first stopper means 47a and the second stopper means 47b, and the first stopper means 47a is located on one side of the first hinge rod 10, and the second stopper means 47b is located. The one side of the second hinge lever 12 has the same configuration as the first stopper means 47a and the second stopper means 47b, and therefore will be described together. The first stop means 47a and the second stop means 47b are composed of a first stop piece 34d and a second stop piece 35d, and a first stop portion 21f and a second stop portion 21g, wherein the first stop The movable piece 34d and the second stopper piece 35d are respectively disposed on the first A-lock cam element 34 and the first B-lock cam element 35, and the first stop portion 21f and the second stop portion 21g are respectively disposed on the sliding guide The first bearing portion 21a of the element 21 and the second bearing portion 21b. The first stopping means 47a and the second stopping means 47b are for limiting the positions of the first casing 2 and the second casing 3 in the closed state (0 degree) and in the fully open state (180 degrees). position.

Next, the operation of the above-described biaxial hinge 4 will be described. First, the biaxial hinge 4 of the present invention is used to open the first casing 2 and the second casing 3 constituting the notebook computer 1, and the notebook computer is an example of the terminal device. The biaxial hinge 4 is characterized in that it has a first hinge rod 10 and a second hinge rod 12, wherein the first hinge rod 10 is assembled to one side of the first housing 2, and the second hinge rod 12 is assembled to One side of the second housing 3, the first hinge rod 10 and the second hinge rod 12 are connected to the second link by at least the first connecting element 14 The elements 37 are coupled to each other in a parallel state. When the first housing 2 and the second housing 3 are opened relative to each other, the first selective rotation restricting means 22 and the second selective rotation restricting means 23 are The first housing 2 and the second housing 3 are opened in a specific order, and the first housing 2 and the second housing 3 are relatively 0 to 360 degrees. Open the angle range. However, it should be noted that the order of opening is not limited to the following embodiments.

In other words, in the present embodiment, first, when the first casing 2 and the second casing 3 of the notebook computer 1 are opened between a closed state of 0 degrees and a degree of opening of 90 degrees, as shown in the figure. 18 to 20, by the operation of the first selective rotation restricting means 22, the first hinge lever 10 will be able to rotate in the clockwise direction, and the rotation of the second hinge lever 12 will be prevented, so the first shell The body 2 can be opened relative to the second housing 3. When the opening is performed between 90 degrees and 180 degrees, as shown in FIG. 21 and FIG. 22, by the operation of the first selective rotation restricting means 22, both the first hinge rod 10 and the second hinge rod 12 can be used at this time. Rotation is performed, but by the operation of the second selective rotation restricting means 23, further clockwise rotation of the first hinge rod 10 will be prevented, and the second hinge rod 12 can be rotated counterclockwise, so that the second shell The body 3 can be opened relative to the first housing 2, and the second housing 3 can be opened relative to the first housing 2 until the opening angle between the two reaches 180 degrees.

When the opening is performed between 180 degrees and 270 degrees, as shown in FIGS. 23 and 24, the first hinge lever 10 and the second hinge lever 12 can be performed by the operation of the first selective rotation restricting means 22. Rotating, but by the operation of the second selective rotation restricting means 23, the rotation of the second hinge rod 12 in the counterclockwise direction will be restricted, so that the first hinge rod 10 can be rotated clockwise, the first shell The body 2 will be able to open relative to the second housing 3 until the opening angle between the two reaches 270 degrees.

When it is opened to 270 degrees, as shown in FIG. 25 and FIG. 26, the first hinge rod 10 and the second hinge rod 12 can be rotated by the operation of the first selective rotation restricting means 22, but by the The operation of the second selective rotation limiting means 23, the rotation of the first hinge rod 10 in the clockwise direction will be limited, so that the second hinge rod 12 can be rotated counterclockwise, and the second housing 3 is opposite to the first The housing 2 will be able to open until the opening angle between the two reaches 360 degrees. Then, when the opening angle reaches 360 degrees, as shown in FIG. 26, by the operation of the first selective rotation restricting means 22, the rotation of the first hinge lever 10 is restricted, and by the second selective rotation limitation The operation of the means 23, at which time the second hinge rod 12 will be able to close The direction is rotated clockwise.

The above embodiment will be further described in detail below. Since the second selective rotation limiting means 23 operates in a complicated manner in the biaxial hinge 4 of the present invention, the second selective rotation limitation will be described first. The operation of means 23. The second selective rotation restricting means 23 restricts or permits the rotation of the first hinge lever 10 and the second hinge lever 12 by the rotation of the movement stopper 26, but causes the movement stopper 26 to rotate. It is a first stop lever 28 and a second stop lever 29. The first stop lever 28 and the second stop lever 29 are crimped to the second A lock cam member 24 and the second B lock cam member 25 by the first A elastic means 30 and the second A elastic means 31, respectively. One of the side faces 24a and 25a. Therefore, when the second A-lock cam member 24 and the second B-lock cam member 25 are rotated, the first stopper lever 28 and the second stopper lever 29 will rotate together with the action of the friction torque. As described above, the first stopper lever 28 and the second stopper lever 29 are provided with a pair of projections 28d, 28d and 29d, 29d at intervals of 180 degrees, respectively. As shown in FIG. 5(a) and FIG. 6(a), the groove portions a to d positioned on the second A-lock cam element 24 and the groove portions e on the second B-lock cam element 25 side are shown. h, when the first housing 2 and the second housing 3 are slammed and in the closed state, the projections 28d and 28d provided by the first stopper lever 28 will fall into the second A-lock cam member 24. Among the groove portions a and c, the projection portions 29d and 29d provided in the second stopper lever 29 are dropped into the groove portions e and g of the second B-lock cam member 25. On the other hand, among the pair of engaging pieces 26c and 26c of the moving stopper 26, the first engaging portion 26c1 will be engaged with the locking portion i of the second A-locking cam member 24, and the fourth engaging portion The portion 26c4 is engaged with the locking portion n of the second B-lock cam element 25. Therefore, as can be seen from the shapes of the locking portions i and n shown in (b) of FIG. 5 and (b) of FIG. 6, among the second selective rotation restricting means 23, the second A-locking cam member 24 Rotation in the clockwise direction will be tolerated, and rotation of the second B-lock cam member 25 in the counterclockwise direction will be limited.

When the first housing 2 is opened from 0 degrees to 90 degrees and from 180 degrees to 270 degrees with respect to the second housing 3, although the rotation of the second A-lock cam member 24 is allowed, the first stop lever The projections 28d and 28d of 28 will fall into the grooves b and d when the opening angle is 90 degrees, and fall into the grooves c and a when the opening angle is 270 degrees. Also, when it is closed, it is the opposite.

On the other hand, when the second housing 3 is opened from 90 degrees to 180 degrees with respect to the first housing 2 and from 270 degrees to 360 degrees, the rotation of the second B-lock cam member 25 is It will be tolerated, but the projections 29d and 29d of the second stopper lever 29 will fall into the groove portions f and h when the opening angle is 180 degrees, and fall into the groove portions g and e when the opening angle is 360 degrees. in. Also, when it is closed, it is the opposite.

In either of the above cases, when the projections 28d, 28d and 29d, 29d of the first stopper lever 28 and the second stopper lever 29 are from the second A-lock cam member 24 and the second B-lock cam member 25, respectively Among the groove portions a to d and e to h, a friction is generated as the second A-lock cam member 24 and the second B-lock cam member 25 are moved up to their respective side faces 24a and 25a. The moment, the protrusions 28d, 28d and 29d, 29d of the first stopper lever 28 and the second stopper lever 29 push the respective locking pieces 26d and 26d of the movement stopper 26 by the frictional force, and It turns.

In this regard, when the first housing 2 and the second housing 3 are opened, the rotation of the second A-lock cam member 24 in the clockwise direction and the rotation of the second B-lock cam member 25 in the counterclockwise direction are both affected. In the case of the restriction, the first engaging portion 26c1 to the second engaging portion 26c4 of the engaging pieces 26c and 26c of the moving stopper 26 are engaged with the locking portion whose rotation is restricted (the element symbol will be described later). Also, when it is closed, it is the opposite.

Further, if the opening operation of the first casing 2 and the second casing 3 is described in further detail, first, when the first casing 2 and the second casing 3 are placed in a closed state as shown in FIG. As shown in (a) of FIG. 18, the first selective rotation restricting means 22 has its first cam convex portion 36a of the locking member 36 abutting against the outer peripheral surface of the first A-lock cam member 34, and the second cam convex portion. The portion 36b is engaged with the first B cam recess 35b of the first B-lock cam member 35. Therefore, since only the first hinge lever 10 in which the first A-lock cam member 34 is assembled can be rotated in this closed state, the second hinge lever 12 cannot be rotated, so the first housing 2 will be The first hinge lever 10 is commonly turned in a clockwise direction with respect to the second housing 3 to be opened. In this state, as described above, the first engaging portion 26c1 of the engaging pieces 26c and 26c of the moving stopper 26 of the second selective rotation restricting means 23 is engaged with the second A-locking cam member 24. The locking portion i on one side, but it is apparent from the engaging direction shown in the drawing that the card combination does not restrict the rotation of the second A-locking cam member 24 in the clockwise direction, but allows the second A-locking. The cam member 24 is rotated in the clockwise direction, so that the rotation of the first hinge lever 10 does not cause an obstacle thereby. On the other hand, the fourth engaging portion 26c4 of the movement stopper 26 whose engaging piece 26c is engaged with the locking portion n of the second B-lock cam member 25 positioned on one side of the second hinge rod 12, And is engaged in limiting the second B lock The rotation of the cam member 25 in the counterclockwise direction, therefore, by the operation of the second selective rotation restricting means 23, the rotation of the second hinge lever 12 in the counterclockwise direction will be limited, and the second hinge lever 12 does not rotate when it is turned from 0 degrees to 90 degrees.

Thereby, the first hinge lever 10 is rotated in the clockwise direction, and the state in which the first housing 2 is opened relative to the second housing 3 has been drawn in FIG. As can be seen from FIG. 19, when the first housing 2 is rotated relative to the second housing 3 with the first hinge lever 10 as a fulcrum, the movement stopper 26 of the second selective rotation restricting means 23 is A stopper lever 28 and the pressing pieces 28c and 29c of the second stopper lever 29 are pushed to rotate in the counterclockwise direction.

Next, a state in which the first casing 2 is opened to 90 degrees with respect to the second casing 3 has been drawn in FIG. As can be seen from FIG. 20, in this state, the first selective rotation restricting means 22 has its first cam convex portion 36a of the locking member 36 opposed to the second A cam concave portion 34c of the first A-lock cam member 34, and The second cam convex portion 36b is opposed to the first B cam concave portion 35b of the first B-lock cam member 35.

As described above, although the first housing 2 is continuously opened at a glance, as described above, since the movement stopper 26 of the second selective rotation restricting means 23 is rotated counterclockwise, as shown in FIG. As shown in (c), the first engaging portion 26c1 and the third engaging portion 26c3 of the engaging pieces 26c and 26c are engaged with the locking portions k and o, and the first hinge lever 10 is restricted from rotating further. Therefore, when the opening angle reaches 90 degrees, the first housing 2 will no longer be able to rotate. In this regard, with respect to the level of the second casing 3, the movement stopper 26 of the second selective rotation restricting means 23 has the first engaging portion 26c1 and the third engaging portion 26c3 of the engaging pieces 26c and 26c, although Engaged in the locking portion o of the first B-lock cam member 35, but the rotation of the first B-lock cam member 35 in the counterclockwise direction is not restricted, so the rotation of the second hinge lever 12 after 90 degrees is allowed. of. Therefore, after the first housing 2 is opened to 90 degrees with respect to the second housing 3, the second housing 3 can be continuously opened relative to the first housing 2. It should be added here that when the first housing 2 is opened to 90 degrees with respect to the second housing 3, the first housing 2 can still rotate in the closing direction, so that the first housing 2 can still be opposite The second housing 3 performs a closing operation.

Next, a state in which the second casing 3 is opened from 90 degrees to 180 degrees with respect to the first casing 2 has been drawn in FIG. As can be seen from Fig. 21, the movement stopper 26 is rotated clockwise by the operation of the first stopper lever 28 and the second stopper lever 29.

The second housing 3 is drawn to a state of 180 degrees with respect to the first housing 2 In Figure 22. According to FIG. 22, the first selective rotation restricting means 22 has the first cam convex portion 36a and the second cam convex portion 36b of the locking member 36 and the second A cam concave portion 34c of the first A lock cam member 34, respectively. The second B cam recess 35c of the first B lock cam member 35 is opposed to each other, and both the first hinge lever 10 and the second hinge lever 12 are rotatable at a glance. However, actually, as shown in (c) of FIG. 22, at this time, the movement stopper 26 of the second selective rotation restricting means 23 is operated by the operation of the first stopper lever 28 and the second stopper lever 29 Rotation in the clockwise direction, and the first engaging portion 26c1 and the fourth engaging portion 26c4 of the engaging pieces 26c and 26c are engaged with the locking of the second A-locking cam member 24 and the second B-locking cam member 25. Parts j and q, therefore, as seen by the direction in which they are engaged, the rotation of the second housing 3 in the counterclockwise direction will be limited. Thereby, the first casing 2 is rotated in a clockwise direction with respect to the second casing 3 in a direction of 270 degrees.

Next, a state in which the first casing 2 is opened from 180 degrees to 270 degrees with respect to the second casing 3 has been drawn in FIG. As can be seen from Fig. 23, the movement stopper 26 of the second selective rotation restricting means 23 is rotated counterclockwise by the operation of the first stopper lever 28 and the second stopper lever 29.

When the first housing 2 is continuously opened relative to the second housing 3 and the opening angle reaches 270 degrees, as shown in FIG. 24, the first selective rotation restricting means 22 has the first cam projection 36a of the locking member 36, The second cam lobe 36b is opposite to the first A cam recess 34b of the first A-lock cam member 34 and the second B cam recess 35c of the first B-lock cam member 35, respectively, but the second selective rotation restricting means 23 The second stopper portion 26c2 and the third engagement portion 26c3 of the movement stopper 26 of the engagement pieces 26c and 26c are engaged with the locking portion 1 of the second A-lock cam member 24 and the second B-lock cam member 25. And s, and restricting the rotation of the first hinge rod 10 in the clockwise direction, so that the second hinge rod 12 will be able to rotate in the counterclockwise direction, when the second housing 3 continues to rotate relative to the first housing 2, The second housing 3 will be rotatable relative to the first housing 2 in a direction of 360 degrees.

The state in which the rotation is from 270 degrees to 360 degrees is as shown in FIG. 25, and the movement stopper 26 of the second selective rotation restricting means 23 is here the first stopper lever 28 and the second stopper lever 29. Push and turn clockwise.

When the second housing 3 is opened to 360 degrees with respect to the first housing 2, as shown in FIG. 26, the first selective rotation restricting means 22 has its first cam convex portion 36a of the locking member 36 fitted to the first A locks the first A cam recess 34b of the cam member 34, the second selective rotation limit The movement stopper 26 of the manufacturing means 23 engages the first engaging portion 26c1 and the fourth engaging portion 26c4 of the engaging pieces 26c and 26c with the locking portions 1 and s, whereby the first hinge rod 10 faces The rotation in the counterclockwise direction will be blocked, and the rotation of the second hinge lever 12 in the clockwise direction will be allowed, so that the first housing 2 is in a non-rotatable state, and the second housing 3 is in a clockwise direction. Make a turn. Therefore, the first housing 2 and the second housing 3, which are opened to 360 degrees, are capable of rotating the second hinge rod 12 in the clockwise direction in a manner opposite to the above, and the first hinge rod 10 is facing Rotating in the counterclockwise direction, and then rotating the second hinge rod 12 in the clockwise direction to rotate the first hinge rod 10 in the counterclockwise direction, and sequentially returning the first housing 2 and the second housing 3 to the original position. When the first casing 2 and the second casing 3 return to the closed state, the states of the first selective rotation restricting means 22 and the second selective rotation restricting means 23 are as shown in FIG.

In the relative rotation operation of the first housing 2 and the second housing 3 described above, the first friction torque generating means 15a and the second friction torque generating means 15b of the friction torque generating means 15 are respectively at the first hinge lever 10 and When the second hinge lever 12 rotates alternately, the friction plate 16 is interposed between the first A friction washer portion 17, the first B friction washer portion 18, and the first A friction washer portion 17, the first B friction washer portion. A frictional torque is generated between the first frictional portion 19 and the second friction washer portion 20, and the first housing 2 and the second housing 3 are opened, and the opening can be stably stopped. Under the 阖 angle.

Moreover, when the opening angles of the first housing 2 and the second housing 3 are 180 degrees and 360 degrees, the stopping means 47 is performed by the first stopper piece 34d of the first A locking cam member 34 and the first The second stopper piece 35d of the B-lock cam member 35 abuts against the first stopper portion 21f and the second stopper portion 21g of the slide guide member 21, respectively, and can stably maintain the first housing 2 and the second housing The open state of the body 3.

Further, when the opening angles of the first housing 2 and the second housing 3 are to reach 0 degrees and 180 degrees, the attraction means 46 is such that the first A-curved cam projection 38b of the first cam follower 38, The first B curved cam convex portion 38c and the second A curved cam convex portion 39b and the second B curved cam convex portion 39c of the second cam follower 39 respectively fall into the first A curved cam of the second joint member 37 The concave portion 37h, the first B curved cam concave portion 37i, the second A curved cam concave portion 37j, and the second B curved cam concave portion 37k function to attract the second housing 3 to the first housing 2 automatically. Rotate in the direction of opening and closing.

Therefore, as apparent from the above description, the biaxial hinge 4 of the present invention is capable of The first housing 2 and the second housing 3 are respectively rotated through the first hinge rod 10 and the second hinge rod 12 by 180 degrees, and the opening operation can be performed in a range of 360 degrees. However, the present invention does not The opening angle of the biaxial hinge 4 is limited.

In addition, the biaxial hinge 4 of the present invention can not only use the notebook computer in the original use manner, but also bend the first housing 2 in the same direction with respect to the second housing 3, so that the notebook computer can roughly display the L character. The type, the mountain shape, or the overlapping shape and the flat shape, and the second casing 3 can face the operator and be used as a tablet computer or the like.

As apparent from the above description, in addition to the above-described embodiments, the second A elastic means 40 and the second B elastic means 41 can act on both the friction torque generating means 15 and the attracting means 46, thereby being more efficient. A preferred advantage, while, for example, the locking element 36, the first A-lock cam element 34, and the first B-lock cam element 35 may also be used directly in their own shape, or the first cam of the attraction means 46 The shape of the follower 38 and the second cam follower 39 is arbitrarily changed arbitrarily, and the characteristics of the cam become easier to design, so that the second casing 3 can be made specific to the first casing 2 No sway occurs when the angle is opened, or the second housing 3 and the first housing 2 can have a suction function at a specific opening angle.

Further, in other embodiments, the first A bending cam recess 37h, the first B bending cam recess 37i and the second A bending cam recess 37j, the second B bending cam recess 37k, and the second connecting element 37 are provided. The first A curved cam convex portion 38b provided by one cam follower 38, the first B curved cam convex portion 38c and the second A curved cam convex portion 39b provided by the second cam follower 39, and the second B curved The cam convex portion 39c can also be replaced by a cam convex portion and a cam concave portion radially provided from the axial center portion toward the outer peripheral edge of the second joint member 37 and the first A lock cam member 34 and the first B lock cam member 35. . Further, in the above embodiment, the second A elastic means 40 and the second B elastic means 41 which are constituted by the disc springs may be various spring washers, compression coil springs or elastic rubbers in other embodiments. Instead of the one of the first hinge rod 10 and the second hinge rod 12, the first lock nut 44 and the second lock nut 45 may be replaced by a synthetic resin material. Further, the first A cam recess 34b, the second A cam recess 34c and the first B cam recess 35b, the second B may be provided by the first A lock cam member 34 and the first B lock cam member 35. Position where the cam recess 35c is provided When the first housing 2 and the second housing 3 are in the closed state, the second housing 3 can be opened earlier than the first housing 2. Moreover, the absence of the hinge housings 6 and 8 does not hinder the operation of the biaxial hinges 4 and 5, but the biaxial hinges 4 and 5 are assembled to the notebook computer with the hinge housings 6 and 8 provided. At 1 o'clock, since the first selective rotation restricting means 22, the second selective rotation restricting means 23, the friction torque generating means 15, the attracting means 46, and the stopping means 47 are not exposed to the outside, Simple and degenerate appearance.

As described above, the present invention provides a biaxial hinge suitable for use in a terminal device such as a notebook computer or other devices by the above configuration. The biaxial hinge enables the first housing and the second housing to be alternately opened in a specific order and can be relatively opened within an angle of 360 degrees. Further, the biaxial hinge of the present invention is also suitable for use in a case where a notebook computer is simultaneously used as a tablet computer.

10‧‧‧First hinge rod

10a, 12a‧‧‧ Assembly board

10c, 12c‧‧‧ first circular shaft

10g, 12g‧‧‧ external thread

10h, 12h‧‧‧assembly pin

11‧‧‧First assembled board

12‧‧‧Second hinge rod

13‧‧‧Second assembled board

14‧‧‧ First connecting element

16‧‧‧ Friction plate

17‧‧‧First A Friction Washer

18‧‧‧First B Friction Washer

19‧‧‧Second A Friction Washer

20‧‧‧Second B Friction Washer

21‧‧‧Sliding guide elements

24‧‧‧Second A locking cam element

25‧‧‧Second B locking cam element

26‧‧‧Moving stop

28‧‧‧First stop lever

29‧‧‧Second stop lever

30‧‧‧First A elastic means

31‧‧‧First B elastic means

32‧‧‧First spacer element

33‧‧‧Second spacer element

34‧‧‧First A-locking cam element

35‧‧‧First B locking cam element

37‧‧‧Second connection element

38‧‧‧First cam follower

39‧‧‧Second cam follower

4‧‧‧Biaxial hinge

40‧‧‧Second A elastic means

41‧‧‧Second B elastic means

42‧‧‧First push washer

43‧‧‧Second push washer

44‧‧‧First lock nut

45‧‧‧Second lock nut

6‧‧‧Hinged shell

Claims (13)

A two-axis hinge, the first housing is opposite to a second housing, wherein the biaxial hinge comprises a first hinge rod and a second hinge rod, the first hinge rod is assembled to One side of the first housing, the second hinge rod is assembled to one side of the second housing, and the first hinge rod and the second hinge rod are connected by at least a first connecting element and a second connecting element And being coupled to each other in a parallel state, a first selective rotation limiting means and a second selective rotation limiting means are disposed between the first hinge bar and the second hinge bar, the first selective rotation limiting means and The second selective rotation limiting means selectively rotates the first hinge rod and the second hinge rod, wherein the two-axis hinge is caused by the first selective rotation limiting means and the second selective rotation limiting means The first casing and the second casing are alternately opened in sequence, and are opened between 0 degrees in the closed state and 360 degrees in the fully open state. The biaxial hinge according to claim 1, wherein the first selective rotation restricting means comprises: a locking member slidably disposed in the up and down direction at the second connecting member and a sliding guiding member The sliding guiding member rotatably penetrates the first hinge rod and the second hinge rod, and the locking element has a first cam protrusion and a second cam protrusion respectively below and above; and a first An A-locking cam member and a first B-locking cam member sandwiching the locking member and being respectively engaged by the first hinge rod and the second hinge rod, the first A-lock cam member having a first A cam recess and a first B cam recess, and the first B-lock cam member has a second A cam recess and a second B cam recess. The biaxial hinge according to claim 1, wherein the second selective rotation limiting means comprises: a second A-locking cam member and a second B-locking cam member are respectively assembled to the first hinge rod and the second hinge rod, and are respectively restricted by the first hinge rod and the second hinge rod; a moving stopper rotatably disposed between the second A-locking cam member and the second B-locking cam member, the moving stopper being engaged with the second A-locking cam according to a rotation angle thereof And the second B-lock cam member; and a first stop lever and a second stop lever respectively rotatably disposed on the first hinge bar and the second hinge bar and engaged with the movement The first stop lever and the second stop lever are respectively crimped to the second A lock cam element and the second B lock by a first A elastic means and a first B elastic means Cam element. A two-axis hinge, the first housing is opposite to a second housing, wherein the biaxial hinge comprises a first hinge rod and a second hinge rod, the first hinge rod is assembled to One side of the first housing, the second hinge rod is assembled to one side of the second housing, and the first hinge rod and the second hinge rod are connected by at least a first connecting element and a second connecting element And being coupled to each other in a parallel state, a first selective rotation limiting means and a second selective rotation limiting means are disposed between the first hinge bar and the second hinge bar, and the first selective rotation limiting means And the second selective rotation limiting means is provided with a friction torque generating means, the first selective rotation limiting means and the second selective rotation limiting means selectively rotating the first hinge rod and the second hinge rod, The two-axis hinges alternately open the first housing and the second housing in sequence with a specific frictional moment by the first selective rotation limiting means and the second selective rotation limiting means, and 0 degrees in the closed state Open between 360 degrees in the fully open state. The biaxial hinge according to claim 4, wherein the first selective rotation limit hand The segment system includes: a locking member slidably disposed between the second connecting member and a sliding guiding member, wherein the sliding guiding member rotatably penetrates the first hinge bar and the second hinge a first cam projection and a second cam projection respectively below and above the locking member; and a first A-lock cam member and a first B-lock cam member for clamping the locking member Separatingly engaged by the first hinge rod and the second hinge rod, the first A-lock cam member has a first A cam recess and a first B cam recess, and the first B-lock cam member has a first a second A cam recess and a second B cam recess. The biaxial hinge of claim 4, wherein the second selective rotation limiting means comprises: a second A locking cam element and a second B locking cam element respectively assembled to the first hinge rod and The second hinge rod is respectively restricted by the first hinge rod and the second hinge rod; a moving stopper is rotatably disposed on the second A-lock cam member and the second B-lock cam member The movement stopper is engaged with the second A-lock cam element and the second B-lock cam element according to the rotation angle thereof; and a first stop lever and a second stop lever The first hinge rod and the second hinge rod are respectively rotatably engaged with the movement stopper, and the first stopper rod and the second stopper rod are respectively coupled by a first A elastic means and A first B elastic means is crimped to the second A locking cam element and the second B locking cam element. The biaxial hinge according to claim 4, wherein the friction torque generating means comprises: a first A friction washer portion and a first B friction washer portion, which are disposed on the first connecting element The first hinge rod and the second hinge rod are rotatably disposed through the friction plate, and the first A friction washer portion and the first B friction washer portion are respectively the first hinge a rod and the second hinge rod restricting rotation; and a second A friction washer portion and a second B friction washer portion disposed between the friction plate and the second selective rotation limiting means, the second A The friction washer portion and the second B friction washer portion are respectively restricted from rotating by the first hinge rod and the second hinge rod. A two-axis hinge, the first housing is opposite to a second housing, wherein the biaxial hinge comprises a first hinge rod and a second hinge rod, the first hinge rod is assembled to One side of the first housing, the second hinge rod is assembled to one side of the second housing, and the first hinge rod and the second hinge rod are connected by at least a first connecting element and a second connecting element And being coupled to each other in a parallel state, a first selective rotation limiting means and a second selective rotation limiting means are disposed between the first hinge bar and the second hinge bar, and a suction means is provided, the first selection The first rotation lever and the second hinge lever selectively rotate the first hinge lever and the second hinge lever, and the attraction means causes the first hinge lever and the second hinge lever to be opened at a specific time The first housing and the second housing are alternately opened in sequence by the first selective rotation limiting means and the second selective rotation limiting means. And in the closed state, 0 degrees to fully open The opening is performed between 360 degrees in the state, and at the same time, the first casing and the second casing are automatically opened at the specific opening angle. The biaxial hinge according to claim 8, wherein the first selective rotation limiting means comprises: a locking member slidably disposed in the up and down direction at the second connecting member and a sliding guiding member The sliding guiding member rotatably penetrates the first hinge rod and the second hinge rod, and the locking element has a first cam protrusion and a second protrusion respectively below and above a first A-locking cam member and a first B-locking cam member are respectively engaged with the locking member and are respectively engaged by the first hinge rod and the second hinge rod, the first A The locking cam member has a first A cam recess and a first B cam recess, and the first B locking cam member has a second A cam recess and a second B cam recess. The biaxial hinge according to claim 8, wherein the second selective rotation limiting means comprises: a second A locking cam element and a second B locking cam element respectively assembled to the first a hinge rod and the second hinge rod, and are respectively restricted from being rotated by the first hinge rod and the second hinge rod; a moving stopper rotatably disposed on the second A-lock cam member and the second B Between the locking cam members, the moving stopper is engaged with the second A locking cam member and the second B locking cam member according to the rotation angle thereof; and a first stopping lever and a second stopping lever The first hinge rod and the second hinge rod are respectively rotatably engaged with the movement stopper, and the first stopper rod and the second stopper rod are respectively respectively by a first A The elastic means and a first B elastic means are crimped to the second A-lock cam element and the second B-lock cam element. The biaxial hinge according to claim 8, wherein the attraction means comprises: a sliding guiding member, the first hinge rod and the second hinge rod are rotatably disposed through the sliding guiding member; a first A curved cam recess, a first B curved cam recess, a second A curved cam recess, and a second B curved cam recess respectively associated with the first hinge rod and the sliding hinge member The second hinge rod is correspondingly disposed; a first cam follower and a second cam follower, the first cam follower has a first a bending cam protrusion and a first B bending cam protrusion, and the first A bending cam protrusion and the first B bending cam protrusion are respectively associated with the first A bending cam recess and the first B bending cam Correspondingly, the second cam follower has a second A curved cam convex portion and a second B curved cam convex portion, and the second A curved cam convex portion and the second B curved cam convex portion are respectively Corresponding to the second A-bend cam recess and the second B-bend cam recess, the first hinge bar and the second hinge bar respectively restrict rotation of the first cam follower and the second cam follower And moving the first cam follower and the second cam follower in an axial direction; and a second A elastic means and a second B elastic means respectively corresponding to the first cam follower And the second cam follower is disposed on the first hinge bar and the second hinge bar. A biaxial hinge, which is a biaxial hinge according to any one of claims 1 to 11, wherein the biaxial hinge comprises a stop means, the stop means having a first stop a first stop piece and a second stop piece, wherein the first stop piece and the second stop piece are respectively disposed on the first A-lock cam element and the first A B locks an outer circumference of the cam member, and the first stop portion and the second stop portion are disposed on the sliding guide member. A terminal machine using the biaxial hinge according to any one of claims 1 to 12.