JP6525233B2 - 2-axis hinge and terminal device using the 2-axis hinge - Google Patents

Description

  The present invention relates to a two-axis hinge suitable for use in terminal devices such as notebook computers, mobile computers, and PDAs.

  In a terminal device such as a notebook computer, a mobile personal computer, or a PDA having a first housing provided with a keyboard unit and a second housing provided with a display unit, the first housing and the second housing are opened and closed vertically. In order to be able to rotate the second housing in the horizontal direction with respect to the first housing after opening the first housing and the second housing 90 degrees in the vertical direction, and the uniaxial hinge consisting of one axis which enables the connection. And a two-axis two-axis hinge. The present invention relates to this biaxial hinge.

  Conventionally, as a biaxial hinge of such a configuration, one described in Patent Document 1 below is known. The two-axis hinge described in Patent Document 1 connects a shaft attached to a first member (first housing) and a shaft attached to a second member (second housing) by a connecting arm. Although a friction torque generating means is provided on each shaft and a link arm is further provided, the first member and the second member are not configured to be opened 180 degrees or more, and the first It is not configured to be able to open and close the member and the second member with regularity.

JP, 2009-063039, A

In recent years, needs to be sought to the terminal device such as a laptop and diversification, it is also diversified functions of the terminal equipment accordingly. In such a case, for example, in order to be able to be used as a tablet at the same time as being usable as a notebook computer, the first case and the second case constituting the terminal device are closed at 0 degrees via a hinge. In order to be able to regulate the opening and closing operation of the other casing from the state to 360 degrees from the state, and to restrict the order of the opening and closing manipulation to either the first casing or the second casing There is a need for a hinge that can be opened and closed with a predetermined regularity.

  Therefore, in the previous patent application (Japanese Patent Application No. 2012-123093), the applicant of the present invention is configured such that the first housing and the second housing can be opened 360 degrees in total by 180 degrees in the vertical direction. I proposed a hinge. Although the present invention has no difference in its usefulness at this time, it has subsequently been sought to be able to adjust the opening and closing angle more gradually.

  Therefore, the object of the present invention is to open and close the first housing and the second housing of a terminal device such as a notebook personal computer with regularity alternately from 0 degrees to 360 degrees, and stabilize at any opening angle. An object of the present invention is to provide a two-axis hinge that can be held in a stopped state.

In order to achieve the above-mentioned object, a biaxial hinge according to claim 1 is a biaxial hinge for opening and closing a first housing and a second housing relative to each other, and is attached to the first housing side. A first hinge shaft and a second hinge shaft attached to the second housing side are connected in parallel by at least a first connection member and a second connection member, and are rotatably provided to each other; the first selective rotation restricting means and the second selective rotation restricting means for selectively rotating the first hinge shaft and the second hinge shaft between the second hinge shaft is provided, the first selective rotation restricting means A lower portion and an upper portion provided slidably in the vertical direction between the second connection member and a slide guide member rotatably inserting the first hinge shaft and the second hinge shaft A lock member having a first cam convex portion and a second cam convex portion, and the first hinge shaft and the second hinge shaft are respectively inserted and engaged with the lock member interposed therebetween, and the first A cam concave portion and the first B cam respectively. It has a first A lock cam member and a first B lock cam member having a recess, a second A cam recess and a second B cam recess, and the second selective rotation restricting means comprises the first hinge shaft and the second hinge shaft. It is rotatably provided between the second A lock cam member and the second B lock cam member mounted with their rotation restricted, and the second A lock cam member and the second B lock cam member, and the second A lock cam member and the second A lock cam member A movable stopper engaged with the second B lock cam member, the first hinge shaft and the second hinge A first stopper lever and a second stopper which are rotatably attached to the shaft and engaged with the movable stopper, and are brought into pressure contact with the second A lock cam member and the second B lock cam member by the first A elastic means and the first B elastic means. by as having a lever, by the first selective rotation restricting means and said second selective rotation restricting means, the first housing and the second housing can be opened and closed alternately Datte order Thus, it is characterized in that it is configured to be able to open and close between 0 degree in the closed state and 360 degrees in the fully open state.

According to a second aspect of the present invention, in addition to the first selective rotation restricting means and the second selective rotation restricting means, friction torque generating means are respectively provided to the first hinge shaft and the second hinge shaft. The friction torque is generated at the time of the opening and closing operation of the first housing and the second housing by the friction torque generating means.

According to a third aspect of the invention, the first hinge shaft and the second hinge shaft are provided with suction means in addition to the first selective rotation restricting means and the second selective rotation restricting means. The respective suction means make the first housing and the second housing open from a predetermined opening angle between 0 degrees in the closed state of the first housing and the second housing to 360 degrees in the fully open state. It is characterized in that it has a configuration capable of automatically opening and closing the case.

At that time, in addition to the first selective rotation restricting means and the second selective rotation restricting means, the biaxial hinge according to a fourth aspect of the present invention has a stopper means respectively for the first hinge shaft and the second hinge shaft. The present invention is characterized in that the relative opening / closing angle of the first housing and the second housing is restricted to a predetermined opening angle by the respective stopper means.

According to a fifth aspect of the present invention, friction torque generating means, suction means and stopper means are respectively provided on the first hinge shaft and the second hinge shaft, and the friction torque generating means is provided with the friction torque generating means. Friction torque is generated at the time of opening and closing operation of the first case and the second case, and the suction means perform 360 degrees in the fully open state from 0 degree of the closed state of the first case and the second case. The first housing and the second housing can be automatically opened and closed from a predetermined opening angle between the first housing and the second housing by the respective stopper means. The second embodiment is characterized in that the relative open / close angle of the housings is restricted to a predetermined open angle.

In the biaxial hinge according to claim 6, further, the friction torque generating means is provided between the first connecting member and a friction plate rotatably inserted through the first hinge shaft and the second hinge shaft. A first A friction washer part and a first B friction washer part provided to be restricted in rotation by the first hinge shaft and the second hinge shaft, and between the friction plate and the second selective rotation restricting means, It is characterized by having a first A hinge shaft and a second A friction washer part and a second B friction washer part which are provided to be restricted in rotation by the second hinge shaft.

Further, in the two-axis hinge according to claim 7, the suction means further includes a slide guide member rotatably inserted through the first hinge shaft and the second hinge shaft, and the slide guide member The first A curved cam recess and the first B curved cam recess, the second A curved cam recess and the second B curved cam recess provided corresponding to the first hinge shaft and the second hinge shaft, and the first A curved cam recess and the first B The first A curved cam convex portion and the first B curved cam convex portion, the second A curved cam convex portion, and the second B curved cam convex portion respectively provided to face the curved cam concave portion and the second A curved cam concave portion and the second B curved cam concave portion A first cam shaft axially movable on the first hinge shaft and the second hinge shaft but restricted in rotation. Having a earth and a second cam follower, and a second 2A resilient means and the 2B elastic means provided in correspondence with the first cam follower and the second cam follower in the said first hinge shaft second hinge shaft It is characterized by

Further, in the biaxial hinge according to an eighth aspect, the stopper means is provided with a first stopper piece and a second stopper piece provided on outer circumferences of the first A lock cam member and the first B lock cam member, and the slide guide member It has the 1st stopper part and the 2nd stopper part which were provided in.

The terminal device according to claim 9, characterized by using the two-axis hinge of each according to the claims 1-8.

  Since the present invention is configured as described above, according to the first aspect of the present invention, the first hinge shaft and the second hinge shaft are alternately rotated by the first selective rotation restricting means and the second selective rotation restricting means. Thus, the first housing and the second housing can be alternately selected and opened regularly over the range of 0 degrees to 360 degrees.

  According to the second aspect of the present invention, the first casing and the second hinge shaft are alternately rotated by the first selective rotation restricting means and the second selective rotation restricting means. The two cases can be selectively opened and closed regularly alternately from 0 degrees to 360 degrees, and the rotational torque is controlled by the friction torque generating means, and the operation sense at the time of opening and closing is made perfect. Furthermore, the first housing and the second housing can be stopped and held at any opening and closing angle.

  According to the third aspect of the invention, by alternately rotating the first hinge shaft and the second hinge shaft by the first selective rotation restricting means and the second selective rotation restricting means, the first housing and The second housing can be selectively opened and closed regularly and alternately over the range of 0 degree to 360 degrees, and the suction means is automatically urged to open and close in the opening and closing direction at a predetermined opening angle, and then stopped. It is possible to give the operator a sense of click operation.

Furthermore, according to the fourth aspect of the invention, the first hinge shaft and the second hinge shaft are alternately and regularly selected and rotated by the first selective rotation restricting means and the second selective rotation restricting means. The first selective rotation restricting means is operable to open and close the first housing and the second housing alternately over a range of 0 degrees to 360 degrees, and the first selective rotation restricting means is provided between the second connection member and the slide guide member. A lock member having a first cam convex portion and a second cam convex portion at upper and lower portions slidably provided in the vertical direction between the first hinge shaft and the second hinge shaft; The first A lock cam portion having the first A cam recess, the first B cam recess, the second A cam recess, and the second B cam recess, with the first hinge shaft and the second hinge shaft inserted and engaged with each other. And depending on a first 1B locking cam member, it is capable of controlling the rotation of the first hinge shaft and the second hinge shaft.

  Furthermore, according to the fifth aspect of the present invention, the first casing and the second hinge shaft are alternately rotated by the first selective rotation restricting means and the second selective rotation restricting means. The second selective rotation restricting means comprises the first hinge shaft and the second hinge shaft, wherein the second housing can be selectively opened and closed alternately with regularity over the range of 0 degree to 360 degrees. It is rotatably provided between the second A lock cam member and the second B lock cam member and the second A lock cam member and the second B lock cam member, each of which is rotationally restrained and attached, and the second A lock cam member and the second A lock cam member A movable stopper engaged with the 2B lock cam member, and rotatably mounted on the first hinge shaft and the second hinge shaft A first selective rotation by a first stopper lever and a second stopper lever engaged with the cutter and brought into pressure contact with the second A lock cam member and the second B lock cam member by the second A elastic means and the second B elastic means By cooperating with the control means, the rotation of the first hinge shaft and the second hinge shaft can be controlled.

  According to the sixth aspect of the invention, since the friction torque is generated when the first hinge shaft and the second hinge shaft rotate by the friction torque generating means, the opening and closing operations of the first housing and the second housing are performed. Sometimes, it can be stably stopped and held at any opening and closing angle.

  According to the seventh aspect of the present invention, even if any of the first hinge shaft and the second hinge shaft is rotated by the suction means in connection with the opening and closing operation of the first housing and the second housing, the closed position thereof. The first A curved cam convex portion and the first B curved cam concave portion, the first B curved cam concave portion, the second A curved cam concave portion, and the second B curved cam concave portion by the elastic means together with the first hinge shaft and the second hinge shaft in the open position. Since the 1B curved cam convex portion, the 2A A curved cam convex portion, and the 2B curved cam convex portion are dropped, the first housing and the second housing immediately before reaching the predetermined opening angle of the first housing and the second housing Is closed so as to be sucked, and it is possible to confirm a predetermined opening / closing angle with a click operation feeling.

  According to the eighth aspect, the first housing and the second housing can be stably stopped and held at the predetermined opening / closing angle by the stopper means.

  Then, when configured as in claim 9, it is possible to provide a terminal device capable of alternately opening and closing the first housing and the second housing with a regularity and a predetermined angle by a maximum of 360 degrees in total.

The notebook computer which is an example of a terminal device which attached the biaxial hinge which concerns on this invention, for example is shown, (a) is the perspective view which looked at the state which opened the 2nd case with respect to the 1st case from the front (B) is the perspective view which looked at the state which closed the 1st housing | casing and the 2nd housing | casing from the back. It is a perspective view of a biaxial hinge concerning the present invention. It is a front view of a biaxial hinge concerning the present invention. It is an exploded perspective view of a biaxial hinge concerning the present invention. The 2nd A lock cam member of the biaxial hinge which concerns on this invention is shown, (a) is the top view, (b) is the side view, (c) is the sectional view on the AA line of (b). The 2B lock cam member of the biaxial hinge which concerns on this invention is shown, (a) is the top view, (b) is the side view, (c) is a BB sectional view taken on the line of (b). It is a perspective view of a moving stopper of a biaxial hinge concerning the present invention. The 1st and 2nd stopper lever of the biaxial hinge which concerns on this invention is shown, (a) is the top view, (b) is the perspective view. It is a perspective view of the 1A and 1B elastic means of a biaxial hinge concerning the present invention. It is a perspective view of the 1st and 2nd spacer member of the biaxial hinge concerning the present invention. It is a perspective view of a slide guide member of a biaxial hinge concerning the present invention. It is a perspective view of the 1A and 1 B lock cam member of a biaxial hinge concerning the present invention. The lock member of the biaxial hinge which concerns on this invention is shown, (a) is the one side view, (b) is the perspective view. The 2nd connection member of the biaxial hinge which concerns on this invention is shown, (a) is the one side view, (b) is the perspective view. The upper 1st cam follower of the biaxial hinge which concerns on this invention is shown, (a) is the side view, (b) is the perspective view. The 2nd cam follower below the biaxial hinge which concerns on this invention is shown, (a) is the side view, (b) is the perspective view. The hinge case of the biaxial hinge which concerns on this invention is shown, (a) is the side view, (b) is the CC sectional view taken on the line of (a). The state before the operation start of the two-axis hinge according to the present invention, that is, for explaining the state of the angle of 0 degree of the closed state with respect to the first case of the second case, (a) is a first selective The state of a rotation control means is shown, (b) shows the state of a 2nd selective rotation control means, (c) is a partially expanded view of (b). The purpose of this description is to explain the operating state of the two-axis hinge according to the present invention, that is, the operating state from the 0 degree angle to the 90 degree angle of the closed state of the second case with respect to the first case, (A) shows the state of a 1st selective rotation control means, (b) shows the state of a 2nd selective rotation control means, (c) is the elements on larger scale of the part of (b). The operation state of the two-axis hinge according to the present invention, that is, the state of an opening angle of 90 degrees with respect to the first case of the second case is described, and (a) is a first selective rotation restricting means. A state is shown, (b) shows the state of a 2nd selective rotation control means, (c) is the elements on larger scale of the part of (b). This is to explain the operating state of the two-axis hinge according to the present invention, that is, the operating state of the second housing from the opening angle of 90 degrees to 180 degrees with respect to the first housing, (a) Shows the state of the first selective rotation restricting means, and (b) shows the state of the second selective rotation restricting means. This is for explaining the operating state of the two-axis hinge according to the present invention, that is, the opening angle of 180 degrees with respect to the first housing of the second housing, and the one in FIG. 21 is rotated 90 degrees counterclockwise. I displayed it. Among them, (a) shows the state of the first selective rotation restricting means, (b) shows the state of the second selective rotation restricting means, (c) is a partially enlarged view of the portion of (b) is there. This is to explain the operating state of the two-axis hinge according to the present invention, that is, the operating state of the second housing from 180 degrees to 270 degrees relative to the first housing, (a) Shows the state of the first selective rotation restricting means, and (b) shows the state of the second selective rotation restricting means. The operation state of the two-axis hinge according to the present invention, that is, the state of an opening angle of 270 degrees with respect to the first case of the second case is described, and (a) is a first selective rotation restricting means. The state is shown, and (b) shows the state of the second selective rotation restricting means. This is to explain the operating state of the two-axis hinge according to the present invention, that is, the operating state from the opening angle of the second housing to the first housing from 270 degrees to 360 degrees, (a) Shows the state of the first selective rotation restricting means, and (b) shows the state of the second selective rotation restricting means. It is for explaining the state during operation of the two-axis hinge according to the present invention, that is, the state of the opening angle of 360 degrees with respect to the first case of the second case, and the one shown in FIG. . Among them, (a) shows the state of the first selective rotation restricting means, and (b) shows the state of the second selective rotation restricting means.

  An embodiment in the case where the two-axis hinge according to the present invention is used for a notebook computer which is an example of a terminal device will be described based on the drawings, but those using the two-axis hinge according to the present invention are limited to a notebook computer Also, it can be used as a mobile personal computer having a first housing and a second housing that are connected so as to be able to open and close in the vertical direction in the range of 180 degrees or more, terminal equipment such as PDA, and other things. .

  FIGS. 1A and 1B show a notebook computer 1 as an example of a terminal device using a biaxial hinge according to the present invention. The notebook computer 1 has a pair of biaxial hinges 4 and 5 according to the present invention on the left and right portions of the rear of the first housing 2 provided with the keyboard portion 2a and the second housing 3 provided with the display portion 3a. It is connected so that it can be opened and closed.

  The constructions of the biaxial hinges 4 and 5 are the same as each other, so only one of the indication symbols 4 will be described, and the explanation of the one indicated by the other indication symbol 5 will be omitted. Of course, in the case where there is no problem in the operation, the structure of the hinge indicated by the reference symbol 5 may be different.

  2 to 17 show an embodiment of a biaxial hinge 4 according to the present invention. In particular, in FIGS. 2 to 4, those indicated by reference signs 10 and 12 are a first hinge shaft and a second hinge shaft. Among them, the first hinge shaft 10 will be described in particular. As shown in FIG. 4, the mounting plate portion has a flat shape in cross section from one end side and mounting holes 10b, 10b and 10b formed on the surface thereof. 10a, a first circular shaft portion 10c provided following the mounting plate portion 10a, a second circular shaft portion 10d provided subsequent to the first circular shaft portion 10c, and the second circular shaft portion 10d And a first deformation shaft portion 10e having a substantially elliptical cross-section with a diameter slightly smaller than that of the second circular shaft portion 10d, and a first deformation shaft portion 10e provided subsequently to the first deformation shaft portion 10e. A second deformation shaft portion 10f having a smaller diameter than that of the deformation shaft portion 10e and having a substantially elliptical cross section and a male screw portion 10g provided subsequent to the second deformation shaft portion 10f.

  The first attachment plate 11 is attached to the attachment plate portion 10a. The attachment method of the first attachment plate 11 to the attachment plate portion 10a is the attachment holes 10b, 10b and 10b of the first hinge shaft 10 and the first attachment plate 10a. (1) It is made by caulking the end portions of the mounting pins 10h, 10h and 10h with the flange portion through the mounting holes (not shown) of the mounting plate 11. The first mounting plate 11 is mounted on the first housing 2 by means of mounting screws (not shown) via mounting holes 11b, 11b... (Partially shown) provided in the first mounting plate 11. It is a structure attached to the upper surface side. The mounting pins 10h, 10h and 10h may be used as mounting screws.

  Next, what is indicated by a reference symbol 12 is a second hinge shaft disposed in parallel in the vertical direction with respect to the first hinge shaft 10, and this second hinge shaft 12 is particularly shown in FIG. A mounting plate 12a having a flat shape in cross section from one end side thereof and mounting holes 12b, 12b and 12b formed on the surface thereof, and a first circular shaft 12c provided following the mounting plate 12a A second circular shaft portion 12d provided following the first circular shaft portion 12c, and a cross-sectional substantially elliptical shape slightly smaller in diameter than the second circular shaft portion 12d provided subsequent to the second circular shaft portion 12d A second deformation shaft portion 12e having a shape similar to that of the first deformation shaft portion 12e having a diameter smaller than that of the first deformation shaft portion 12e provided next to the first deformation shaft portion 12e; Shaft 12f and this second deformation Following section 12f and a male screw portion 12g provided.

The second attachment plate 13 is attached to the attachment plate portion 12a. The attachment method of the second attachment plate 13 to the attachment plate portion 12a is the attachment holes 12b, 10b and 12b of the second hinge shaft 12, and 2 is done by caulking the end portions of the mounting pins 12h, 12h, 12h with the flanges through the mounting holes 13a, 13a, 13a of the mounting plate 13. The second mounting plate 13 is mounted on the lower surface side of the second housing 3 using mounting screws (not shown) via the mounting holes 13b, 13b, ... provided in the second mounting plate 13. It is. The mounting pins 12h, 12h and 12h may be used as mounting screws.

  As shown in FIGS. 2 and 3, the first hinge shaft 10 and the second hinge shaft 12 have their respective second circular shaft portions 10d, 12d provided at the upper and lower positions of the first connecting member 14. First selective bearing rotation 14a and first B bearing hole 14b, a pair of second A bearing hole 16a and second B bearing hole 16b provided at the upper and lower positions of friction plate 16 of friction torque generating means 15 described later, and first selective rotation A pair of third A bearing holes 21d and a third B bearing hole 21e provided at upper and lower positions of the slide guide member 21 of the restricting means 22, and a pair of fourth A bearing holes provided at upper and lower positions of the second connecting member 37 of the suction means 46 The bearings 37d and the 4B bearing holes 37e are disposed parallel to each other and rotatably. Then, the first hinge shaft 10 and the second hinge shaft 12 attach the first mounting plate 11 and the second mounting plate 13 to the first housing 2 and the second housing 3 to thereby form the first mounting plate 11 and the second hinge shaft 12. (2) The mounting plate 13 is arranged vertically and parallel to the axial direction in the closed state of the first housing 2 and the second housing 3.

  Next, what is indicated by the reference symbol 6 in FIG. 1 to FIG. 4 and FIG. 17 is a hinge case, and a first connecting member attached to the first hinge shaft 10 and the second hinge shaft 12 in the hinge case 6 The part from 14 is accommodated.

  The hinge case 6 is a cylindrical one having a cross-sectionally elongated hole shape as shown in FIGS. 2 and 17 in particular, and the friction provided on the first hinge shaft 10 and the second hinge shaft 12 in the inside thereof. The torque generating means 15, the second selective rotation restricting means 23, the first selective rotation restricting means 22, the stopper means 47, and the suction means 46 are accommodated, and are provided in the hinge case 6 as particularly shown in FIG. The partition wall 6a having the insertion hole 6b is attached to the female screw hole 37f of the projecting portion 37g provided at the center of the second connection member 37 of the first selective rotation restricting means 22 by the mounting screw 7. The hinge case 6 is housed in the housing recesses 2b and 3b provided in the first housing 2 and the second housing 3 as particularly shown in FIG. Also, the other hinge case 8 has the same configuration.

Next, the first selective rotation restricting means 22 will be described. The first selective rotation restricting means 22 is, as particularly shown in FIG. 4, the first A selective rotation restricting means 22a on the lower side of the first hinge shaft 10 and the first B selective rotation restricting means 22b on the upper side. However, since the configuration is the same except that they are vertically symmetrical , they are collectively described here. The first selective rotation restricting means 22 comprises a second connection member 37, a lock member 36, a slide guide member 21, and a pair of first A lock cam members 34 and first B lock cam members 35. The second connecting member 37 has a side surface including a first bearing portion 37a and a second bearing portion 37b having a substantially disc shape in the upper and lower portions, and a connecting portion 37c connecting the first and second bearing portions 37a and 37b. The first bearing portion 37a and the second bearing portion 37b are substantially wedge-shaped, and are respectively provided with a fourth A bearing hole 37d and a fourth B bearing hole 37e having a circular cross section. The first bearing holes 4A and 4B are provided. The second deformed shaft portions 10f and 12f of the first hinge shaft 10 and the second hinge shaft 12 are inserted into the bearing holes 37e and rotatably supported. The second connecting member 37 is provided with a projection 37g provided with a female screw hole 37f, and the projection 37g is attached to the partition 6a of the hinge case 6 by the attachment screw 7 as described above.

  The lock member 36 has a first cam convex portion 36a and a second cam convex portion 36b on the left and right of its central portion, as particularly shown in (a) and (b) of FIG. A first guide groove 36c and a second guide groove 36d are provided on both sides of the convex portion 36a and the second cam convex portion 36b. The connecting portion 37 c of the second connecting member 37 is fitted in the first guide groove 36 c of the lock member 36 to guide the sliding movement of the lock member 36 in the vertical direction.

  The slide guide member 21 is, as particularly shown in FIG. 11, a first bearing portion 21a and a second bearing portion 21b having a substantially disc shape at the upper and lower portions, and the first bearing portion 21a and the second bearing portion 21b. The first bearing portion 21a and the second bearing portion 21b are provided with a third A bearing hole 21d and a third B bearing hole 21e, and these third A bearing holes 21d are provided. The first hinge shaft 10 and the first deformation shafts 10e and 12e of the second hinge shaft 12 are inserted into the third bearing hole 21e and rotatably supported. The connecting portion 21 c is fitted into the other second guide groove 36 d of the lock member 36 and guides the sliding movement of the lock member 36 in the vertical direction. A first stopper portion 21f and a second stopper portion 21g are provided on the outer peripheral portion of the first bearing portion 21a and the second bearing portion 21b of the slide guide member 21 so as to project in the axial direction.

Next, the first 1A locking cam member 34 is first 1B locking cam member 35 intended vertical pair, on the lower side of the 1A locking cam member 34 and the upper first 1B locking cam member 35, respectively deformed insertion holes 34a, 35a are provided The first A lock cam member 34 and the first B lock cam member are engaged by inserting and engaging the first hinge shafts 10 and the first hinge shafts 12 of the first hinge shaft 12 to the hinge insertion holes 34a, 35a. The reference numeral 35 is attached to the first hinge shaft 10 and the first deformation shaft 10 e and the first deformation shaft 12 e of the second hinge shaft 12 while being restricted in rotation. The first A lock cam member 34 and the first B lock cam member 35 have the same shape in the left-right symmetry, and particularly, as shown in FIG. The slide guide member 34b is provided with a second A cam recess 34c, a first B cam recess 35b and a second B cam recess 35c, and a side located on the slide guide member 21 side when assembled, depending on its rotation angle. A first stopper piece 34d and a second stopper piece 35d which abut on the first stopper portion 21f and the second stopper portion 21g provided on the surface 21 are provided. The first A lock cam member 34 and the first B lock cam member 35 are axially sandwiched between the second connection member 37 and the slide guide member 21 and positioned on the upper side and the lower side with the lock member 36 interposed therebetween. The first A cam recess 34b, the second A cam recess 34c, the first B cam recess 35b, and the second B cam recess 35c correspond to the first cam protrusion 36a and the second cam protrusion 36b of the lock member 36, respectively. And are configured to be opposed and fitted by the rotation angle.

  Next, as shown in FIGS. 2 to 4 in particular, the second selective rotation restricting means 23 is provided with the second A selective rotation restricting means 23a on the lower side provided on the side of the first hinge shaft 10, and It is composed of an upper second B selective rotation restricting means 23b provided on the hinge shaft 12 side, and is adjacent to the second A friction washer part 19 and the second B friction washer part 20, respectively. The second A selective rotation restricting means 23a on the lower side and the second B selective rotation restricting means 23b on the upper side have the same structure except that the structure is vertically symmetrical, so that they will be described together here. Do. The second selective rotation restricting means 23 inserts the deformation insertion holes 24c, 25c provided in the axial direction of the central portion in the first deformation shaft portions 10e, 12e of the first hinge shaft 10 and the second hinge shaft 12, respectively. A pair of second A lock cam member 24 and second B lock cam member 25 provided in combination, and a female screw provided in the central portion of the friction plate 16 between the second A lock cam member 24 and the second B lock cam member 25 The movable stopper 26 rotatably attached to the hole 16c via the stopper holder 27, the cylindrical portions 32b and 33b, the insertion holes 32a and 33a, and the flange portions 32c and 33c, respectively, and the insertion holes 32a and 33a are inserted. A first spacer member 32 and a second spacer member 33 attached to the first deformed shaft portions 10e and 12e; The first A elastic means 30 and the first B made of disc springs provided on the flanges 32c and 33c side by inserting the cylindrical parts 32b and 33b of the bearing member 32 and the second spacer member 33 into the insertion holes 30a and 31a. Between the second A lock cam member 24 and the second B lock cam member 25 while making contact with the elastic means 31 and the first A and first B elastic means 30, 31 and inserting the cylindrical parts 32b, 33b into the respective insertion holes 28a, 29a. It is comprised by the provided 1st stopper lever 28 and the 2nd stopper lever 29. As shown in FIG.

  The second A lock cam member 24 and the second B lock cam member 25 are, as particularly shown in FIGS. 5 and 6, groove a to groove d and groove e to groove h on the outer peripheral portion on the side surface 24a, 25a side respectively Are provided, and a plurality of locking portions i to m and locking portions n to s are provided on the side of the other side surface portions 24b and 25b, and the grooves a to d and the grooves e are provided. The position of the groove h is the same on the first hinge shaft 10 side and the second hinge shaft 12 side, but the locking portion i to the locking portion m and the locking portion n to the locking portion s The shape of is slightly different. The reason why the shapes of the locking portions i to m and the locking portions n to r are different from each other is the first hinge shaft according to the opening / closing direction of the first housing 2 and the second housing 3 as described later. This is because the rotational directions of the second hinge shaft 12 and the second hinge shaft 12 are different.

  As shown in FIG. 7 in particular, the movable stopper 26 is protruded outward at an interval of 180 degrees from the outer periphery of the cylindrical portion 26b provided with the insertion hole 26a in the axial direction of the central portion thereof. A pair of engaging pieces 26c, 26c and a pair of engaging pieces 26d, 26d having a circular arc shape protruding in the axial direction from the engaging pieces 26c, 26c are inserted into the insertion holes 26a. It is rotatable about an axis around a shaft portion 27b of the stopper holder 27 with the flange portion 27a. A first engagement portion 26c1, a second engagement portion 26c2, a third engagement portion 26c3, and a fourth engagement portion 26c4 are provided on the engagement pieces 26c, 26c.

  The pair of first stopper levers 28 and the second stopper lever 29 have the same shape, and in particular, as shown in (a) and (b) of FIG. 8, a ring shape provided with insertion holes 28a and 29a respectively. While pressing pieces 28c and 29c are protruded outward from the respective main body portions 28b and 29b, a pair of protruding portions 28d, 28d and 29d and 29d are provided on the main body portions 28b and 29b at intervals of 180 degrees, respectively. The cylindrical portions 32b and 33b of the first and second spacer members 32 and 33 are inserted into the insertion holes 28a and 29a.

  The pair of first spacer members 32 and the second spacer members 33 have the same shape, as particularly shown in FIG. 10, and have cylindrical portions 32b and 33b provided with insertion holes 32a and 33a, and cylindrical portions 32b and 33b, respectively. The flange portions 32c and 33c provided on the upper and lower sides of the first hinge shaft 10 and the second hinge shaft 12 are inserted into the insertion holes 32a and 33a, respectively.

  The pair of first A elastic means 30 and the first B elastic means 31 have a frusto-conical shape with a low height, as shown particularly in FIG. The cylinder portions 32b and 33b of the spacer members 32 and 33 are inserted, and the body portions 28b and 29b of the first stopper lever 28 and the second stopper lever 29 and the flanges of the first spacer member 32 and the second spacer member 33 The first stopper lever 28 and the second stopper lever 29 are in contact with each other between the second A lock cam member 24 and the second B lock cam member 25. , Friction torque is generated.

  Next, friction torque generating means 15 for generating friction torque when the first hinge shaft 10 and the second hinge shaft 12 rotate will be described. The friction torque generating means 15 comprises a first friction generating means 15a on the first hinge shaft 10 side and a second friction generating means 15b on the second hinge shaft 12 side, and the first hinge shaft 10 and the second hinge respectively. A friction plate 16 having a single-sided, substantially wedge shape, in which the first deformation shaft portions 10e and 12e of the shaft 12 are supported by the second A bearing hole 16a and the second B bearing hole 16b, and one side of the friction plate 16 Between the first connection member 14 and in the central axial direction, and the first deformation shaft portions 10e and 12e are inserted into and engaged with the deformation insertion holes 17e and the deformation insertion holes 18e, respectively. In the example, a first A-flick comprising three friction washers 17a, 17b, 17c and 18a, 18b, 18c, respectively. Between the second A lock cam member 24 and the second B lock cam member 25 of the second selective rotation restricting means 23 to be described later and the second side of the friction plate 16 and the second side of the friction plate 16 In the embodiment, the second A friction washer portion 19 and the first friction shaft portion 19 are formed by inserting the first deformation shaft portions 10e and 12e into the deformation insertion holes 19a and 20a provided in the central axial direction, respectively. A second B elastic means 40 and a second B elastic means 41 of suction means 46 described later for pressing the second B friction washer part 20 and the first A friction washer part 17 and the first B friction washer part 18 into pressure contact with the friction plate 16 It is done. In FIG. 4, those indicated by reference symbols 17d, 18d, 19b and 20b are oil reservoirs for lubrication.

  Next, although the suction means 46 comprises the first suction means 46a on the lower first hinge shaft 10 side and the second suction means 46b on the upper second hinge shaft 12 side, the construction is the same. Here, we will explain together. The first suction means 46a and the second suction means 46b are provided on the outer and inner sides of the side portions of the first and second bearing portions 37a and 37b of the second connection member 37, respectively. The 1B curved cam concave portion 37i, the second A curved cam concave portion 37j, the second B curved cam concave portion 37k, and the respective deformation insertion holes 38a and 39a thereof are used as the second deformation shaft portions 10f and 12f of the first hinge shaft 10 and the second hinge shaft 12, respectively. And the first A curved cam convex portion 38b and 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 provided on the outer side and the inner side of the side surface thereof. The first and second curved cam recesses 37h and the first B curved cam recesses 37i and the second A provided on the outside and the inside of the side surfaces of the first and second bearings 37a and 37b of the second connecting member 37. A first cam follower 38 and a second cam follower 39 provided opposite to the curved cam recess 37j and the second B curved cam recess 37k, and a central axis in contact with the first cam follower 38 and the second cam follower 39 Second A-elasticity composed of a plurality of disc springs 40b and 41b provided by inserting the second hinged shafts 10f and 12f of the first hinge shaft 10 and the second hinge shaft 12 into the insertion holes 40a and 41a provided in the same direction. Means 40 and the second B elastic means 41, and the first hinge shaft 10 and the second hinge shaft in the deformation insertion holes 42a and 43a provided in the central axial direction in contact with the second A elastic means 40 and the second B elastic means 41 A first pressing washer 42 and a second pressing washer 43, which are provided by inserting and engaging the second deformation shaft portion 10f and the second deformation shaft portion 12f; Male screw 10g provided on the free end side of each of the second deformation shaft 10f and 12f of the shaft 10 and the second hinge shaft 12, and a first tightening nut 44 and a second screw fixed to the male screw 12g. It consists of an attached nut 45.

  And although the stopper means 47 also consists of the 1st stopper means 47a by the side of the 1st hinge shaft 10, and the 2nd stopper means 47b by the side of the 2nd hinge shaft 12, since both configurations are the same, they are collectively explained here. Do. The first stopper means 47a and the second stopper means 47b comprise a first stopper piece 34d and a second stopper piece 35d provided on the first A lock cam member 34 and the first B lock cam member 35, and a first bearing portion of the slide guide member 21. 21a and a second stopper portion 21g provided on the second bearing portion 21b, and the position (0 degree) of the closed state of the first housing 2 and the second housing 3 It regulates the position in the fully open state (180 degrees).

Next, the operation of the biaxial hinge 4 according to the present invention described above will be described below. First, the biaxial hinge 4 according to the present invention is a biaxial hinge that relatively opens and closes the first housing 2 and the second housing 3 that constitute the notebook computer 1 that is an example of the terminal device. The feature is that the first hinge shaft 10 attached to the first housing 2 side and the second hinge shaft 12 attached to the second housing 3 are at least the first connecting member 14 and the second connecting member 37. The first selective rotation restricting means 22 and the second selective rotation restricting means are connected to each other in a parallel state and provided rotatably relative to each other, when the first housing 2 and the second housing 3 are opened and closed relative to each other. 23 sequentially operate alternately and open and close in a predetermined order, and open and close the first casing 2 and the second casing 3 over a range of 0 degrees to 360 degrees relative to each other. However, the order of opening and closing is not limited to that of the following embodiment.

That is, first, when the first case 2 and the second case 3 of the notebook computer 1 are opened or closed from 0 degrees to 90 degrees in the closed state of the notebook computer 1 , FIGS. As shown, since the first selective rotation restricting means 22 enables the clockwise rotation of the first hinge shaft 10 and prevents the rotation of the second hinge shaft 12, the second housing 3 is provided. In contrast, the first case 2 is opened and closed. At the time of opening and closing from 90 degrees to 180 degrees, as shown in FIGS. 21 and 22, the first hinge shaft 10 and the second hinge shaft 12 can be rotated together by the first selective rotation restricting means 22 this time. However, since the second selective rotation restricting means 23 prevents further clockwise rotation of the first hinge shaft 10, the counterclockwise rotation of the second hinge shaft 12 is enabled, so that the first housing It is possible to open the second housing 3 with respect to the body 2 and the second housing 3 is opened with respect to the first housing 2 until the opening angle between the two is 180 degrees.

  At the time of opening and closing from 180 degrees to 270 degrees, as shown in FIGS. 23 and 24, the first hinge shaft 10 and the second hinge shaft 12 can be rotated together by the first selective rotation restricting means 22. However, as a result of the counterclockwise rotation of the second hinge shaft 12 being restricted by the second selective rotation restricting means 23, the clockwise rotation of the first hinge shaft 10 becomes possible this time, and the first housing 2 Is opened with respect to the second housing 3 until the opening angle of the both is 270 degrees.

When it is opened to 270 degrees, as shown in FIGS. 25 and 26, the first hinge shaft 10 and the second hinge shaft 12 can rotate together by the first selective rotation restricting means 22, but As a result of the clockwise rotation of the first hinge shaft 10 being restricted by the selective rotation restricting means 23, the counterclockwise rotation of the second hinge shaft 12 becomes possible this time, and the second housing 3 becomes the first housing. It will be opened up to 360 degrees to the body 2 . Then, when the hinge shaft is opened up to 360 degrees, as shown in FIG. 26, the rotation of the first hinge shaft 10 is restricted by the first selective rotation restricting means 22, and the second selective rotation restricting means 23 in turn Clockwise rotation of the second hinge shaft 12 is permitted in the closing direction.

  As described in more detail below, in the case of the biaxial hinge 4 according to the present invention, the operation of the second selective rotation restricting means 23 is complicated, so this operation will be described first. The rotation of the movable stopper 26 of the second selective rotation restricting means 23 restricts or allows the rotation of the first hinge shaft 10 and the second hinge shaft 12, but the movable stopper 26 is rotated as follows: The first and second stopper levers 28 and 29 are provided. The first A elastic means 30 and the first B elastic means 31 press-contact the side surfaces 24 a and 25 a of the second A lock cam member 24 and the second B lock cam member 25. Accordingly, when the second A lock cam member 24 and the second B lock cam member 25 rotate, the first and second stopper levers 28 and 29 rotate together by the friction torque. As described above, the first and second stopper levers 28, 29 are provided with a pair of protrusions 28d, 28d, 29d, 29d at an interval of 180 degrees. As shown in FIGS. 5 and 6 (a), the grooves a to d on the second A lock cam member 24 and the grooves e to h in the second B lock cam member 25 correspond to the first housing 2 and In the closed state where the second housing 3 is closed, the protrusions 28d, 28d provided on the first stopper lever 28 fall into the grooves a and c of the second A lock cam member 24, and the second stopper The protrusions 29 d, 29 d provided on the lever 29 are depressed into the grooves e and g of the second B lock cam member 25. On the other hand, the first engagement portion 26c1 of the engagement pieces 26c and 26c of the moving stopper 26 engages with the engagement portion i of the second A lock cam member 24, and the fourth engagement portion 26c4 is a second B lock cam member 25. Engaging with the locking part n of Therefore, as can be understood from the shapes of the locking portions i and n in (b) of FIGS. 5 and 6, also in the second selective rotation restricting means 23, the second A lock cam member 24 rotates clockwise. The second B lock cam member 25 is restricted from rotating in the counterclockwise direction.

The second A lock cam member 24 is allowed to rotate at the time of opening from 0 ° to 90 °, 180 ° to 270 ° with respect to the second housing 3 of the first housing 2, but the projection 28 d of the first stopper lever 28 , 28d fall into the grooves b and d at 90 degrees and fall into c and a at 270 degrees . At the time of closure, the opposite is true.

On the other hand, the second B lock cam member 25 is allowed to rotate at the time of opening from 90 degrees to 180 degrees, 270 degrees to 360 degrees with respect to the first housing 2 of the second housing 3, and the projection 29 d of the second stopper lever 29 , 29d fall into the grooves f, h at 180 degrees and fall into the grooves g, e at 360 degrees. At the time of closure, the opposite is true.

  In any of the above cases, the protrusions 28d, 28d and 29d, 29d of the first and second stopper levers 28, 29 are grooves a to d and e to h of the second A lock cam member 24 and the second B lock cam member 25. From this, friction torque is generated when the second A lock cam member 24 and the second B lock cam member 25 rotate on the respective side surface portions 24a and 25a, and the frictional force causes the locking pieces of the moving stopper 26 to be engaged. 26d and 26d are pushed and rotated.

  On the other hand, the first engagement portion 26c1 to the fourth engagement portion 26c4 of the engagement pieces 26c and 26c of the movable stopper 26 are the second A lock cam members when the first case 2 and the second case 3 are opened. When the clockwise rotation of 24 and the counterclockwise rotation of the second B lock cam member 25 are restricted, it engages with a locking portion (designated symbol will be described later) whose rotation is restricted. At the time of closure, the opposite is true.

  The opening and closing operations of the first housing 2 and the second housing 3 will be described in more detail. First, in the closed state shown in FIG. 1 in which the first housing 2 and the second housing 3 are closed, FIG. As shown in (a), the first cam convex portion 36a of the lock member 36 of the first selective rotation restricting means 22 is in contact with the outer peripheral surface of the first A lock cam member 34, and the second cam convex portion 36 b is engaged with the first B cam recess 35 b of the first B lock cam member 35. Therefore, in the closed state, it is the side of the first hinge shaft 10 to which the first A lock cam member 34 is attached that can be rotated and the side of the second hinge shaft 12 can not be rotated. On the other hand, the first housing 2 is rotated clockwise with the first hinge shaft 10 to be opened. The first engaging portions 26c1 of the engaging pieces 26c and 26c of the movable stopper 26 of the second selective rotation restricting means 23 in this state are engaged with the engaging portions i on the second A lock cam member 24 as described above. However, as the engagement direction does not restrict the clockwise rotation of the second A lock cam member 24 but allows this, as shown in the drawing, the engagement direction of the first hinge shaft 10 Do not disturb the rotation. On the other hand, the fourth engaging portion 26c4 of the engaging piece 26c of the moving stopper 26 is engaged with the locking portion n of the second B lock cam member 25 on the second hinge shaft 12 side. Since the second selective rotation restricting means 23 also locks the second hinge shaft 12 in the counterclockwise direction, the second hinge shaft 12 is restricted in the counterclockwise direction because it is locked to the side that restricts the counterclockwise rotation. The two hinge shafts 12 do not rotate from 0 degrees to 90 degrees.

  Thus, the clockwise rotation of the first hinge shaft 10 is performed, and the state in which the first housing 2 is being opened relative to the second housing 3 is shown in FIG. According to the drawing, the first housing 2 is opened with respect to the second housing 3 with the first hinge shaft 10 as a fulcrum, and at this time, the first housing 2 is made of the second selective rotation control means 23. As a result of the movement stopper 26 being pushed by the pressing pieces 28c and 29c of the first and second stopper levers 28 and 29, it can be understood that the movement stopper 26 rotates in the counterclockwise direction.

  Next, a state in which the first housing 2 is opened up to 90 degrees with respect to the second housing 3 is shown in FIG. According to the drawing, in this state, the first cam convex portion 36a of the lock member 36 of the first selective rotation control means 22 faces the second A cam concave portion 34c of the first A lock cam member 34, and the second cam convex portion 36 b is opposed to the first B cam concave portion 35 b of the first B lock cam member 35.

  Therefore, although it seems that the first housing 2 continues to be opened, the moving stopper 26 of the second selective rotation restricting means 23 rotates counterclockwise as described above, as shown in FIG. 20C. The first engaging portion 26c1 and the third engaging portion 26c3 of the engaging pieces 26c, 26c engage with the locking portions k and o to restrict further rotation of the first hinge shaft 10. As a result, the first housing 2 can not rotate. On the other hand, in the second housing 3, the third engaging portion 26 c 3 of the engaging piece 26 c of the movable stopper 26 of the second selective rotation restricting means 23 engages with the engaging portion o of the first B lock cam member 35. However, since the counterclockwise direction of rotation is not restricted, the second hinge shaft 12 is allowed to rotate 90 degrees or more. Therefore, after the first housing 2 and the second housing 3 are opened 90 degrees, the second housing 3 is opened relative to the first housing 2. On the other hand, since the first housing 2 opened up to 90 degrees with respect to the second housing 3 can be rotated in the closing direction, the first housing 2 is closed to the second housing 3 be able to.

  Next, the state in the middle of the second housing 3 being opened in the direction of 90 degrees to 180 degrees with respect to the first housing 2 is shown in FIG. According to the drawing, it can be seen that the moving stopper 26 is now rotated clockwise by the first and second stopper levers 28 and 29.

  The state in which the second housing 3 is opened up to 180 degrees with respect to the first housing 2 is shown in FIG. According to the drawing, the first cam convex portion 36a and the second cam convex portion 36b of the lock member 36 of the first selective rotation restricting means 22 are respectively the second A cam concave portions of the first A lock cam member 34 and the first B lock cam member 35. The first hinge shaft 10 and the second hinge shaft 12 appear to be rotatable, as opposed to the 34c and the second B cam recess 35c. However, the moving stopper 26 of the second selective rotation restricting means 23 is rotated clockwise by the first and second stopper levers 28 and 29 as shown in FIG. The first engaging portion 26c1 and the fourth engaging portion 26c4 of 26c and 26c engage with the locking portions j and q of the second A lock cam member 24 and the second B lock cam member 25. The counterclockwise rotation of the second housing 3 is restricted. As a result, clockwise rotation of the first housing 2 relative to the second housing 3 to 270 degrees is possible this time.

  Next, a state in which the first housing 2 is opened to 270 degrees with respect to the second housing 3 is shown in FIG. According to the drawing, the movable stopper 26 of the second selective rotation restricting means 23 is rotated in the counterclockwise direction by the first and second stopper levers 28 and 29 this time.

  When the first housing 2 is opened relative to the second housing 3 and is opened up to 270 degrees, as shown in FIG. 24, the first cam of the lock member 36 of the first selective rotation restricting means 22 Although the convex portion 36a and the second cam convex portion 36b face the first A cam concave portion 34b and the second B cam concave portion 35c of the first A lock cam member 34 and the first B lock cam member 35, respectively, the second selective The moving stopper 26 of the rotation restricting means 23 is the second engaging portion 26c2 and the third engaging portion 26c3 of the engaging pieces 26c and 26c, and the engaging portions l and s of the second A lock cam member 24 and the second B lock cam member 25 , And restricting clockwise rotation on the side of the first hinge shaft 10, so that counterclockwise rotation of the second hinge shaft 12 becomes possible, and the second housing 3 becomes the first housing 2 Against rotating Ri, the second housing 3 can rotate in the direction of 360 degrees relative to the first housing 2.

  The state in the middle of the rotation from 270 degrees to 360 degrees is shown in FIG. 25 and the moving stopper 26 of the second selective rotation restricting means 23 pushes the first and second stopper levers 28 and 29 this time. Being turned clockwise.

  In the state where the second housing 3 is opened up to 360 degrees with respect to the first housing 2, as shown in FIG. 26, the first cam convex portion of the lock member 36 of the first selective rotation restricting means 22 36a is engaged with the first A cam recess 34b of the first A lock cam member 34, and the first engagement portion 26c1 of the engagement piece 26c, 26c of the movement stopper 26 of the second selective rotation restricting means 23 is engaged with the fourth engagement portion 26c1. As a result of the engagement portion 26c4 engaging with the locking portions l and s, the counterclockwise rotation of the first hinge shaft 10 is blocked, and the clockwise rotation of the second hinge shaft 12 is permitted this time. As a result, the first housing 2 is blocked from rotating, and the second housing 3 is allowed to rotate clockwise. Therefore, the first housing 2 and the second housing 3 opened up to 360 degrees are rotated in the clockwise direction of the second hinge shaft 12 and the counterclockwise direction of the first hinge shaft 10 by the reverse movement. Rotation, clockwise rotation of the second hinge shaft 12, and clockwise rotation of the first hinge shaft 10, sequentially returning to the original position, and the first housing 2 and the second housing 3 In the closed state, the first selective rotation restricting means 22 and the second selective rotation restricting means 23 are in the state shown in FIG.

  During 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 It operates when the second hinge shaft 12 rotates alternately and operates between the friction plate 16 and the first A friction washer 17 and the first B friction washer 18 and the second A friction washer 19 and the second B friction washer 20. A friction torque can be generated to perform a stable stop operation at an arbitrary angle when the first housing 2 and the second housing 3 are opened and closed.

  In addition, the stopper means 47 is a first stopper piece 34d and a second stopper piece of the first A lock cam member 34 and the first B lock cam member 35 when the first housing 2 and the second housing 3 are opened 180 degrees and 360 degrees. By bringing 35d into contact with the first stopper portion 21f and the second stopper portion 21g of the slide guide member 21, the open state of the first housing 2 and the second housing 3 can be stably held. is there.

  Further, the suction means 46 is provided from the first A curved cam convex portion 38 b and the first B curved cam of the first cam follower 38 from slightly before the opening angle of the first housing 2 and the second housing 3 at 0 degrees and 180 degrees. The convex portion 38c, the second A curved cam convex portion 39b and the second B curved cam convex portion 39c of the second cam follower 39, the first A curved cam concave portion 37h of the second connecting member 37 and the first B curved cam concave portion 37i and the second A curved By falling into the cam recess 37j and the second B-curved cam recess 37k, the suction function is exerted, and the second housing 3 is automatically rotationally biased relative to the first housing 2 in the opening direction and the closing direction. It is.

  Therefore, as is apparent from the above description, the biaxial hinge 4 according to the present invention alternates the first housing 2 and the second housing 3 via the first hinge shaft 10 and the second hinge shaft 12, respectively. Although the opening and closing operation can be performed in total by 360 degrees by rotating each by 180 degrees, the opening and closing angle is not particularly limited.

  The first case 2 can be bent in the same direction with respect to the second case 3 so that the notebook computer can be used in its original usage, and can be formed into a substantially L-time shape or a mountain shape. The second housing 3 can be used in various ways as a tablet by directing the second housing 3 to the operator side.

  As apparent from the above description, the present invention can, for example, make the second A and second B elastic means 40, 41 act on both the friction torque generating means 15 and the suction means 46 in addition to those described above. Therefore, the lock member 36, the first A lock cam member 34 and the first B lock cam member 35 can be used efficiently, and the first cam follower 38 and the second cam follower of the suction means 46 can be used. Arbitrary changes in the shape of the cam follower cam 39 make it easy to design the cam characteristics, so that the opening angle of the second housing 3 with respect to the first housing 2 does not fluctuate at a specific angle. It is also possible to have a suction function at a specific opening angle.

As other embodiments, each first A curved cam concave portion 37h and first B curved cam concave portion 37i, second A curved cam concave portion 37j and second B curved cam concave portion 37k provided in the second connecting member 37, and a first cam follower The first A curved cam convex portion 38b and 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 provided on the second cam follower 39 and the second cam follower 39 It is possible to change to the cam convex part and cam concave part provided radially from the axial center part of the 1A and 1 B lock cam members 34 and 35 to the outer periphery. Also, the 2A and the 2B elastic means 40, 41 consist of disc springs, which spring washer, helical compression spring, can be replaced by such as those made of synthetic resin for the rubber having elasticity and beginning to, the The first and second tightening nuts 44 and 45 can be replaced by caulking the ends of the first hinge shaft 10 and the second hinge shaft 12. Furthermore, the first A cam recess 34b and the second A cam recess 34c, and the first B cam recess 35b and the second B cam recess 35c provided on the first A lock cam member 34 and the first B lock cam member 35 are changed in position. It is also possible to configure so that the second housing 3 can be opened and closed earlier than the first housing 2 when the housing 2 and the second housing 3 are closed. In addition, the hinge cases 6 and 8 do not cause any trouble especially in the function of the two-axis hinges 4 and 5 without this, but if the hinge cases 6 and 8 are present, the two-axis hinges 4 and 5 are attached to the notebook computer 1 In this case, the first and second selective rotation restricting means 22, 23, friction torque generating means 15, suction means 46, stopper means 47, etc. are not exposed to the outside, so the appearance becomes clear. It has the advantage of

  Since the present invention is configured as described above, the first housing and the second housing are alternately opened according to a predetermined sequence, and the range is relatively 360 degrees, particularly in a terminal device such as a notebook personal computer and the like. The hinge is preferably used as a two-axis hinge in the case of opening and closing at the time of opening and closing. However, it is particularly preferable to use a notebook computer as a tablet at the same time.

DESCRIPTION OF SYMBOLS 1 notebook computer 2 first housing 3 second housing 4 two-axis hinge 5 two-axis hinge 10 first hinge shaft 12 second hinge shaft 14 first connecting member 15 friction torque generating means 16 friction plate 17 first A friction washer part 18 first B friction washer portion 19 second A friction washer portion 20 second B friction washer portion 21 slide guide member 21 f first stopper portion 21 g second stopper portion 22 first selective rotation restricting means 23 second selective rotation restricting means 24 first 2A lock cam member 25 second B lock cam member 26 moving stopper 28 first stopper lever 29 second stopper lever 30 first A elastic means 31 first B elastic means 34 first A lock cam member 34 b first A cam concave 34 c 2A cam recess 34d first stopper piece 35 first B lock cam member 35b first B cam recess 35c second B cam recess 35d second stopper piece 36 lock member 36a first cam protrusion 36b second cam protrusion 37 second connecting member 37h 1A curved cam recessed portion 37i 1st B curved cam recessed portion 37j 2nd A curved cam recessed portion 37k 2nd B curved cam recessed portion 38 1st cam follower 38b 1st A curved cam convex portion 38c 1st b curved cam convex portion 39 2nd cam follower 39b 2nd A curved Cam convex portion 39c Second B curved cam convex portion 40 Second A elastic means 41 Second B elastic means 46 Suction means 47 Stopper means

Claims (9)

A two-axis hinge for relatively opening and closing a first housing and a second housing, the first hinge shaft attached to the first housing side, and the second hinge shaft attached to the second housing side The first hinge shaft and the second hinge shaft are provided between the first hinge shaft and the second hinge shaft such that the first hinge shaft and the second hinge shaft are rotatably connected to each other in a parallel state by at least a first connection member and a second connection member. First selective rotation restricting means and second selective rotation restricting means for selectively rotating are provided, and the first selective rotation restricting means comprises the second connecting member, the first hinge shaft, and the second hinge shaft. A lock member having a first cam convex portion and a second cam convex portion at a lower portion and an upper portion provided slidably in the vertical direction between the slide guide members through which The first A lock cam member and the first A lock cam member having the first A cam recess, the first B cam recess, the second A cam recess, and the second B cam recess, respectively, by inserting and engaging the first hinge shaft and the second hinge shaft with the members interposed therebetween And a second A lock cam member and a second B lock cam member attached to the first hinge shaft and the second hinge shaft with their rotation restricted, respectively. A movable stopper rotatably provided between the second A lock cam member and the second B lock cam member, and engaged with the second A lock cam member and the second B lock cam member according to the rotation angle, the first hinge shaft, and the first hinge shaft 2 rotatably mounted on the hinge shaft and engaged with the moving stopper Together is, by those having a first 1A resilient means and the first stopper lever and a second stopper lever which is brought into pressure contact with the first 2B locking cam member and the second 2A locking cam member by a 1B elastic means, the first selection manner by the rotation restriction means and said second selective rotation restricting means, the first housing and the second housing form so that it can be opened and closed alternately Datte order fully open from 0 degrees closed state A two-axis hinge characterized in that it has a configuration adapted to be able to open and close between 360 degrees in a state of formation. In addition to the first selective rotation restricting means and the second selective rotation restricting means, friction torque generating means are respectively provided on the first hinge shaft and the second hinge shaft, and each of the friction torque generating means The biaxial hinge according to claim 1, characterized in that friction torque is generated at the time of opening and closing operation of one case and the second case. In addition to the first selective rotation restricting means and the second selective rotation restricting means, suction means are respectively provided to the first hinge shaft and the second hinge shaft, and each suction means is provided with the first housing and The first housing and the second housing can be automatically opened and closed from a predetermined opening angle between 0 degrees in the closed state of the second housing and 360 degrees in the fully open state. The biaxial hinge according to claim 1, characterized in that: In addition to the first selective rotation restricting means and the second selective rotation restricting means, the first hinge shaft and the second hinge shaft are respectively provided with stopper means, and the respective stopper means make it possible to The biaxial hinge according to claim 1, wherein the relative open / close angle of the second housing is restricted to a predetermined open angle. The first hinge shaft and the second hinge shaft are respectively provided with friction torque generating means, suction means, and stopper means, respectively, and the friction torque generating means causes the first housing and the second housing to be provided. A friction torque is generated at the time of opening and closing operation of the body, and a predetermined opening and closing angle between 0 degree of the closed state of the first case and the second case and 360 degree of the fully open state is generated by each suction means The first casing and the second casing can be automatically opened and closed, and the relative opening and closing angle of the first casing and the second casing can be determined by the respective stopper means. The biaxial hinge according to claim 1, wherein the hinge is restricted to a predetermined opening angle .

  The friction torque generating means is configured to connect the first hinge shaft and the second hinge between the first connection member and a friction plate rotatably provided through the first hinge shaft and the second hinge shaft. The first hinge shaft and the second hinge shaft are provided between a first A friction washer portion and a first B friction washer portion provided with rotation restricted by the shaft, and between the friction plate and the second selective rotation restricting means. The biaxial hinge according to claim 2, characterized in that it has a second A friction washer part and a second B friction washer part provided with rotation restriction.   The suction means corresponds to a slide guide member provided by rotatably inserting the first hinge shaft and the second hinge shaft, and the first hinge shaft and the second hinge shaft of the slide guide member. The first A curved cam concave and the first B curved cam concave, the second A curved cam concave and the second B curved cam concave, the first A curved cam concave and the first B curved cam concave, and the second A curved cam concave and the second B It has a first A curved cam convex portion and a first B curved cam convex portion, a second A curved cam convex portion and a second B curved cam convex portion respectively provided to be opposed to the curved cam concave portion, and the first hinge shaft and the second A first cam follower and a second cam follower, each axially movable on the hinge shaft but restricted in rotation, and the first jaw 4. The apparatus according to claim 3, further comprising second A elastic means and second B elastic means provided on the first shaft and the second hinge shaft in correspondence with the first cam follower and the second cam follower. Axis hinge. The stopper means includes a first stopper piece and a second stopper piece provided on the outer peripheries of the first A lock cam member and the first B lock cam member, and a first stopper portion and a second stopper portion provided on the slide guide member. The biaxial hinge according to claim 4 , characterized in that:   A terminal device characterized in that the biaxial hinge according to each of claims 1 to 8 is used.

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