JP2016169813A - Multiple spindle hinge and terminal equipment using multiple spindle hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multiple spindle hinge in which an inter-shaft distance of each of the hinge shafts is made short, its mounting space is eliminated, a twisting at the time of opening or closing is eliminated, a well-fit operating feeling is attained, the opening or closing operation is well adapted and a clearance is not generated as much as possible between each of rear ends of a first casing and a second casing at the time of opening.SOLUTION: A first main hinge shaft and a first sub-hinge shaft to fix fixing members are rotatably arranged within the first hinge case through a plurality of connecting members, a second main hinge shaft and a second sub-hinge shaft for use in fixing supporting members are rotatably arranged within the second hinge case through a plurality of connecting members. Each of the first sub-hinge shaft and the second sub-hinge shaft is rotatably connected to each other through relative connecting members arranged at each of their both sides, the fixing members and the supporting members are rotated in opposite direction in synchronous manner by a synchronous rotating mechanism, and each of the first main hinge shaft and the second main hinge shaft is provided with a friction torque generating mechanism and a friction torque sucking mechanism to resolve a problem described above.SELECTED DRAWING: Figure 5

Description

  The present invention connects, for example, a first housing having a keyboard portion of a terminal device such as a notebook computer and a second housing having a display portion so as to be able to be opened and closed over a relative 360 °. In particular, the present invention relates to a multi-axis hinge suitable for use in a tablet-type notebook computer having a display operation function at the same time, and a tablet-type notebook computer using the multi-axis hinge.

  Conventionally, as a multi-axis hinge of a tablet-type notebook personal computer, a configuration in which the first housing and the second housing can be opened / closed relative to each other by 360 ° is known from Patent Document 1 below. However, the conventionally known multi-axis hinge has a problem that the structure of the synchronous rotation mechanism is complicated and the number of parts is large. In addition, conventionally known multi-axis hinges require a large installation space due to the long distance between the shafts of the hinge shafts, and are twisted by the hinges themselves when opening and closing the first housing and the second housing. There was a problem that it was easy to occur. Furthermore, since the internal structure of the hinge itself is exposed to the outside, there is a problem that the appearance is rustic and lacks aesthetics. Further, since the distance between the axes of the hinge shafts is long, there is a problem that a large gap is generated between the rear end portions when the first casing and the second casing are opened. In addition, since there is no friction torque creation mechanism or suction mechanism, there are problems such as a comfortable operation feeling and no insufficiency in opening and closing operations.

US Pat. No. 87200111

  Therefore, the object of the present invention is to shorten the distance between the axes of the hinge shafts, thereby eliminating the installation space, eliminating twisting at the time of opening and closing, and further exposing the internal structure of the hinge to the outside. In order to prevent and provide a sensation of operation, the opening / closing operation is squeezed, and a gap is created between the first and second housings as much as possible during opening. There is a shaft hinge.

  In order to achieve the above-described object, the biaxial hinge according to the present invention is a multiaxial hinge that connects the first housing and the second housing of an electronic device so that they can be opened and closed using four hinge shafts arranged in parallel. The first main hinge shaft and the first sub hinge shaft constituting the hinge shaft are disposed in the first hinge case so as to be rotatable via a plurality of connecting members. An attachment member attached to the first housing is attached to the hinge shaft so that the second main hinge shaft and the second sub hinge shaft of the hinge shaft can be rotated through a plurality of connecting members in the second hinge case. And a support member attached to the second housing is attached to the second main hinge shaft, and the first sub hinge shaft and the second sub hinge shaft are connected to each other. The first main hinge shaft, the first sub-hinge shaft, the second main hinge shaft, and the second sub-hinge shaft are connected to each other through interconnecting members disposed on both sides of the first main hinge shaft, the first sub-hinge shaft, and the second main hinge shaft. A first synchronous rotation mechanism provided on one side, a first main hinge shaft, the first sub-hinge shaft, a second main hinge shaft, and a second sub-hinge shaft provided on the other side. The two synchronous rotation mechanisms are configured so that the attachment member and the support member rotate synchronously in opposite directions, and the first main hinge shaft and the second main hinge shaft rotate simultaneously, A friction torque generating mechanism and a suction mechanism are provided on the main hinge shaft and the second main hinge shaft, respectively. It is characterized in.

  In this case, the present invention includes a first mounting member and a second mounting member that are respectively mounted on the both ends of the first main hinge shaft, and the first mounting member and the second mounting member. The support member includes a first support member and a second support member attached to both end portions of the second main hinge shaft, and the first support members. It is characterized by comprising the third and fourth connection plates for connecting the member and the second support member.

  Further, according to the present invention, a cylindrical cover is attached to each end portion of the first sub-hinge shaft and the second sub-hinge shaft, and these cylindrical covers have outer end surfaces thereof as outer end surfaces of the mounting member and the support member. It is characterized by being flush with.

  Further, the present invention provides the first synchronous rotation mechanism, wherein the first sub-hinge shaft and the second sub-hinge shaft are rotatably inserted on one side of the first casing and the second casing. A first double gear, a first gear and a second gear, which are engaged with the respective tooth portions of the first double gear and inserted and engaged with the first main hinge shaft and the second main hinge shaft, and the first gear. A first swivel gear provided with a tooth portion on one end side where the main hinge shaft and the first sub hinge shaft are rotatably inserted, meshed with the first swivel gear, the second main hinge shaft, A second swivel gear having a tooth portion that meshes with the tooth portion of the first swivel gear on one end side where the second sub hinge shaft is rotatably inserted; It is characterized by comprising.

  Further, the present invention provides the second synchronous rotation mechanism, wherein the first sub-hinge shaft and the second sub-hinge shaft are rotatably inserted on the other side of the first casing and the second casing. A second swivel gear, a third gear and a fourth gear which are engaged with the respective teeth of the second swivel gear and are inserted and engaged with the first main hinge shaft and the second main hinge shaft; A third swiveling gear provided with a tooth portion on one end side where the first main hinge shaft and the first sub hinge shaft are rotatably inserted, and the second main hinge shaft meshing with the third swiveling gear. And a fourth swivel gear having a tooth portion meshing with the tooth portion of the third swivel gear on one end side where the second sub hinge shaft is rotatably inserted. It is characterized by that.

  Further, the present invention is configured such that the friction torque generating mechanism includes a first friction torque generating mechanism provided on the first main hinge shaft side and a second friction torque generating mechanism provided on the second main hinge shaft, The first friction torque creating mechanism acts on the first main hinge shaft, and the second friction torque creating mechanism acts on the second main hinge shaft.

  Further, the present invention is configured such that the suction mechanism includes a first suction mechanism provided on the first main hinge shaft side and a second suction mechanism provided on the second main hinge shaft side, The suction mechanism acts on the first main hinge shaft, and the second suction mechanism acts on the second main hinge shaft.

  An electronic apparatus according to the present invention includes the multi-axis hinge according to each of the above inventions.

Since the present invention is configured as described above, the components of the synchronous rotation mechanism can be omitted from the conventional one, and the first main hinge shaft and the first sub-hinge shaft of the four hinge shafts are the first. The second main hinge shaft and the second sub-hinge shaft are accommodated in the second hinge case, and both side portions of the first sub-hinge shaft and the second sub-hinge shaft are connected to the first connecting member and the first sub-hinge shaft. By connecting the synchronous rotation mechanism and the second synchronous rotation mechanism, the distance between the axes of the hinge shafts can be reduced, and the multi-axis hinge can be prevented from being twisted during opening and closing. Moreover, since the friction torque generating mechanism is provided at a position offset outward from the apparent center of rotation of the first casing and the second casing, the diameter of the hinge shaft is reduced, and the friction torque generated by each friction torque generating mechanism is reduced. However, the friction torque required to stably hold the second housing relative to the first housing at an arbitrary opening / closing angle can be created.
Further, the friction torque generating mechanism, suction mechanism, and synchronous rotation mechanism disposed on each hinge shaft are housed in the case, so that the appearance can be made clean.

  The present invention can also provide an electronic device that can open and close a maximum of 360 ° in total by synchronizing the first housing and the second housing using the multi-axis hinge according to the present invention.

The state which attached the multiaxial hinge which concerns on this invention to the tablet-type notebook personal computer is shown, (a) is the perspective view which opened the 2nd housing | casing with respect to the 1st housing | casing, and was seen from the front side, (b) was the 1st It is the perspective view which closed the housing | casing and the 2nd housing | casing and was seen from the back side. It is a perspective view which shows the attachment state of the multiaxial hinge which concerns on this invention. 1 is a perspective view of a multi-axis hinge according to the present invention. It is the perspective view which removed and looked at the 1st hinge case and the 2nd hinge case from the multiaxial hinge concerning the present invention. It is a disassembled perspective view of the whole multiaxial hinge which concerns on this invention. It is a disassembled perspective view by the side of the 1st hinge case of the multiaxial hinge which concerns on this invention. It is a disassembled perspective view by the side of the 2nd hinge case of the multi-axis hinge which concerns on this invention. It is a disassembled perspective view by the side of the 1st synchronous rotation mechanism of the multiaxial hinge which concerns on this invention. It is a disassembled perspective view by the side of the 2nd synchronous rotation mechanism of the multiaxial hinge which concerns on this invention. The 1st hinge case and the 2nd hinge case of the multi-axis hinge concerning this invention are shown, (a) is the perspective view seen from the lower side, (b) is the left view, (c) is the right view, (D) It is the longitudinal cross-sectional view. It is a plane sectional view of the 1st attachment member of the multiaxial hinge concerning the present invention, the 2nd attachment member, the 1st support member, and the 2nd support member. It is a plane sectional view of the 1st-the 4th cylindrical cover concerning the present invention. The 1st main hinge shaft and the 2nd main hinge shaft of the multiaxial hinge which concern on this invention are shown, (a) is the top view, (b) is the front view, (c) is the left view, (d ) Is the right side view. The 1st sub hinge shaft and the 2nd sub hinge shaft of the multi-axis hinge which concern on this invention are shown, (a) is the front view, (b) is the left view, (c) is the right view. The 1st friction plate and 2nd friction plate of the multi-axis hinge which concern on this invention are shown, (a) is the perspective view, (b) is the front view, (c) is the side view. The 4th connection member and the 9th connection member of the multi-axis hinge concerning the present invention are shown, (a) is the perspective view, and (b) is the side view. The 1st and 4th friction washer of the multiaxial hinge which concerns on this invention is shown, (a) is the front view, (b) is the side view, (c) is the back view. The cam follower of the multi-axis hinge which concerns on this invention is shown, (a) is the side view, (b) is the front view, (c) is the top view. It is explanatory drawing explaining operation | movement of the multi-axis hinge which concerns on this invention, (a) shows the closed state of a 1st housing | casing and a 2nd housing | casing, (b) is a 1st housing | casing and a 2nd housing | casing. Shows a state in which the first housing and the second housing are opened up to 180 °, and (d) shows a state in which the first housing and the second housing are 270. A state where the first housing and the second housing are opened up to 360 ° is shown, respectively.

  Hereinafter, an embodiment in which the multi-axis hinge according to the present invention is used in a tablet-type notebook personal computer which is an example of an electronic device will be described with reference to the drawings. However, the present invention can also be used for electronic devices such as mobile personal computers, PDAs and the like having a first housing and a second housing that are connected to each other so that they can be opened and closed within a range of 180 ° or more in the vertical direction. Is.

  1A and 1B show a notebook computer 1 as an example of an electronic apparatus using a multi-axis hinge according to the present invention. In the notebook computer 1, the first housing 2 provided with the keyboard portion 2a and the rear portions of the second housing 3 provided with the display portion 3a are connected to each other by a plurality of multi-axis hinges 4 according to the present invention. Let me. Although a total of six polyaxial hinges 4 are used in the drawing, the number of the multiaxial hinges 4 is not limited. One of the multi-axis hinges will be described below. In addition, when there is no trouble in operation, the configuration of other multi-axis hinges may be different.

  2 to 18 show an embodiment of a multi-axis hinge according to the present invention. According to the drawings, the multi-axis hinge 4 according to the present invention includes four hinge shafts (in the embodiment, the first main hinge shaft 7) in which the first housing 2 and the second housing 3 of the electronic device 1 are arranged in parallel. The first sub-hinge shaft 8, the second main hinge shaft 21, and the second sub-hinge shaft 22). The hinge is connected to the first hinge case 6 in an openable / closable manner. The first main hinge shaft 7 and the first sub hinge shaft 8 constituting the shaft are connected to a plurality of connecting members (in the embodiment, the side walls 6f and 6g (first connecting member) of the first hinge case 6), the first turning gear 19 (Second connection member), the first friction plate 35 (third connection member), the fourth connection member 37, and the third turning gear 28 (fifth connection member). Arranged in front An attachment member A for attaching to the first housing 2 is attached to the first main hinge shaft 7, and a plurality of second main hinge shafts 21 and second sub hinge shafts 22 of the hinge shaft are connected in a second hinge case 23. Members (in the embodiment, side walls 23f and 23g (sixth connecting member) of the second hinge case 23, fourth turning gear 30 (seventh connecting member), second friction plate 43 (eighth connecting member), ninth connection A support member that is disposed so as to be rotatable via a member 44 and a second turning gear 20 (tenth connecting member) and is attached to the second casing 3 on the second main hinge shaft 21. B is attached, and the first sub-hinge shaft 8 and the second sub-hinge shaft 22 are arranged on both sides of the interconnection member (the first double of the first interconnection member). The first main hinge shaft 7, the first sub-hinge shaft 8 and the second main hinge shaft 21. The first synchronous rotation mechanism 15 provided on one side of each of the second sub-hinge shaft 22, the first main hinge shaft 7, the first sub-hinge shaft 8, the second main hinge shaft 21, and the The mounting member A and the support member B are rotated in opposite directions synchronously by the second synchronous rotation mechanism 31 provided on the other side of each of the second sub hinge shafts 22, and the first main hinge shaft 7 and the second main hinge shaft 21 rotate at the same time, and the first main hinge shaft 7 and the second main hinge shaft 21 A friction torque generating mechanism D and a suction mechanism E are provided on the side of the shaft 21 respectively.

  Then, the mounting member A is attached to the both ends of the first main hinge shaft 7 respectively, and the first mounting member 9 and the second mounting member 10, and the first mounting member 9 and the second mounting member 10. The first connection plate 11 and the second connection plate 12 are connected to each other, and the support member B is attached to both end portions of the second main hinge shaft 21. And a third connection plate 39 and a fourth connection plate 40 for connecting the first support member 24 and the second support member 25.

  Furthermore, a first cylindrical cover 13, a second cylindrical cover 14, a third cylindrical cover 32, and a fourth cylindrical cover are provided at both ends of the first sub hinge shaft 8 and the second sub hinge shaft 22, respectively. 33 (sometimes simply referred to as a cylindrical cover) are attached, and these first cylindrical cover 13, second cylindrical cover 14, third cylindrical cover 32, and fourth cylindrical cover 33 (this specification) In this case, the outer end surface is simply flush with the outer end surfaces of the mounting member A and the support member B.

  In particular, in FIGS. 2 to 6 and FIG. 10, the reference symbol 6 indicates a first hinge case opened at one end, which is composed of a long portion 6 a and a short portion 6 b, particularly as shown in FIG. 10. The elongated portion 6a and the short portion 6b are provided with a long hole 6d in communication with each other from the opening 6c side on one end side, but the long portion 6a alone is a circular hole 6e from the middle. ing. The other side of the long portion 6a and the short portion 6b has side walls 6f and 6g (also referred to as first connecting members), and the side walls 6f and 6g have a first A bearing hole 6h and a first side, respectively. 1B bearing hole 6i is provided.

  In the first hinge case 6, an oval shape, which will be described later, has a first main hinge shaft 7 fitted into the long portion 6a and a first sub hinge shaft 8 fitted into the long hole 6d. A first swiveling gear 19 of the first synchronous rotation mechanism 15, a third connecting member that also serves as a first friction plate 35 of a first friction torque generating mechanism 34, which will be described later, and a friction portion 37a of the first friction torque generating mechanism 34. A fourth connecting member 37 having a fixed cam portion 37b of the first suction mechanism 36, which will be described later, and a third swivel gear 28 of the second synchronous rotating mechanism 31, which will be described later, also serving as a fifth connecting member, are provided respectively. 2A bearing hole 19a, 2B bearing hole 19b, 3A bearing hole 35a, 3B bearing hole 35b, 4A bearing hole 37c, 4B bearing hole 37d, 5A bearing hole 28 , 5B bearing hole 28b, and 1A bearing hole 6h provided in first hinge case 6 and 1B bearing hole 6i, respectively, are rotatably supported and accommodated, and each first main hinge shaft 7 and first The sub hinge shaft 8 has both end portions projecting outward from the first hinge case 6.

  And the 1st attachment member 9 and the 2nd attachment member 10 which are respectively attached to the 1st housing | casing 2 side at the both ends which the 1st main hinge shaft 7 protruded from the 1st hinge case 6, and these 1st and 2nd, An attachment member A composed of first and second connecting plates 11 and 12 attached to the upper surface side and the lower surface side of the second attachment members 9 and 10 is attached, and the first sub hinge shaft 8 penetrates the first hinge case 6. At both ends, a cylindrical first cylindrical cover 13 and a second cylindrical cover 14 are attached by mounting screws 13e and 14e, respectively.

  The first mounting member 9 and the second mounting member 10 constituting the mounting member A and the first supporting member 24 and the second supporting member 25 of the supporting member B which will be described later have the same shape and configuration, in particular the plane of FIG. As shown in the cross-sectional view, the flat plate portions 9a, 10a, 24a, 25a and the mounting cylinder portions 9b, 10b, 24b, 25b provided to be connected to the flat plate portions 9a, 10a, 24a, 25a 9a, 10a, 24a, 25a are provided with connecting holes 9c, 10c, 24c, 25c and mounting holes 9d, 10d, 24d, 25d. As shown in FIG. 11, the internal structure of each of the mounting tube portions 9b, 10b, 24b, and 25b is sandwiched between the partition walls 9f, 10f, 24f, and 25f provided with the mounting holes 9e, 10e, 24e, and 25e, Deformed mounting holes 9g, 10g, 24g, 25g for inserting and engaging the first deformed shaft portions 7a, 21a of the first main hinge shaft 7 and the second main hinge shaft 21 are provided on one side, and the circular holes 9h, 10h, 24h, and 25h are provided. In particular, as can be imagined from FIGS. 4 and 5, the first main hinge shaft 7, the first sub-hinge shaft 8, the second main hinge shaft 21, and the second sub-hinge shaft 22 are formed in the deformation mounting holes 9 g, 10 g, 24 g and 25 g. The first deformed shaft portions 7a, 8a, 21a, 22a and the third deformed shaft portion 7f, the second deformed shaft portion 8e, the third deformed shaft portion 21f, and the second deformed shaft portion 22e are inserted and engaged with each other. The mounting screws 9i, 10i, 24i, and 25i inserted through the holes 9h, 10h, 24h, and 25h are screwed and fixed to the female screw portions 7g, 7h, 21h, and 21g.

  Each of the connection plates including the first connection plate 11, the second connection plate 12, the third connection plate 39, and the fourth connection plate 40 includes connection holes 11a, 11a and 12a, 12a and 39a, 39a and 40a, and 40a. And mounting holes 11b, 11b, 12b, 12b, 39b, 39b, 40b, 40b, and the first mounting member 9, the second mounting member 10, the first support member 24, and the second support member 25 in the vertical direction. And the connecting holes 11a, 11a and 12a, 12a and 39a, 39a and 40a, 40a, the first mounting member 9, the second mounting member 10, and the first support member 24 and the second support member 25. 10c, 24c, and 25c are fixed by caulking pins 11c and 11c and 39c and 39c.

  Furthermore, the configuration of the cylindrical cover composed of the first cylindrical cover 13, the second cylindrical cover 14, the third cylindrical cover 32, and the fourth cylindrical cover 33 is the same, as shown in FIG. The partition walls 13a, 14a, 32a, 33a partitioning the inside are provided with deformation mounting holes 13b, 14b, 32b, 33b on one side and circular holes 13c, 14c, 32c, 33c on the other side, and each deformation mounting hole 13b, The first deformation shaft portion 8a and the second deformation shaft portion 8e of the first sub hinge shaft 8 and the first deformation shaft portion 22a and the second deformation shaft portion 22e of the second sub hinge shaft 22 are inserted into 14b, 32b and 33b. Then, the mounting screws 13e, 14e, 32e, 33e are inserted from the circular holes 13c, 14c, 32c, 33c, and the female screw portions 8f, 8g, through the mounting holes 13d, 14d, 32d, 33d, 2f, it is those made by a screw wearing to 22g. The outer end surfaces of the first cylindrical cover 13, the second cylindrical cover 14, the third cylindrical cover 32, and the fourth cylindrical cover 33 are flush with the outer end surfaces of the mounting member A and the support member B. Are aligned.

  As shown in FIGS. 6 and 13, the first main hinge shaft 7 has a first circular shaft portion 7 b, a first circular shaft portion 7 b, and a first circular shaft portion 7 b, following the first deformation shaft portion 7 a having a rectangular cross section from one end side. A flange portion 7c having a diameter larger than that of the portion 7b, a second deformation shaft portion 7d having a substantially elliptical cross section, a second circular shaft portion 7e, and a third deformation shaft portion 7f having a substantially rectangular cross section are provided. Female threaded portions 7g and 7h are provided on the portion 7a and the third deformed shaft portion 7f from the respective end portions in the axial direction. Further, the third deformation shaft portion 7f is provided with a male screw portion 7i. And the 1st deformation | transformation shaft part 7a and the 3rd deformation | transformation shaft part 7f which were provided in the both ends of this 1st main hinge shaft 7 of each attachment cylinder part 9b, 10b of the 1st attachment member 9 and the 2nd attachment member 10 are carried out. The deformation attachment holes 9g and 10g are inserted and engaged, and are fixed by attachment screws 9i and 10i attached to the respective partition walls 9f and 10f. The mounting screws 9i and 10i are inserted through circular holes 9h and 10h provided with the partition walls 9f and 10f interposed therebetween.

  As shown in FIGS. 6 and 14 in particular, the first sub-hinge shaft 8 includes a first deformed shaft portion 8a, a first circular shaft portion 8b, and a first circular shaft portion 8b having a substantially rectangular cross section from one end side. The second circular shaft portion 8c having a slightly larger diameter, the third circular shaft portion 8d having a slightly smaller diameter than the second circular shaft portion 8c, and the second deformation shaft portion 8e having a substantially rectangular cross section, The first deformation shaft portion 8a and the second deformation shaft portion 8e are respectively provided with female screw portions 8f and 8g in the axial direction, and the first deformation shaft portion 8a and the second deformation shaft portion 8e are inserted and engaged with each other to form a cylinder. The first cylindrical cover 13 and the second cylindrical cover 14 having a shape are attached by mounting screws 9i and 10i.

  Next, as shown in FIGS. 2 to 3, 7, and 10, what is indicated by an instruction symbol 23 is a second hinge case that is open at one end, and from the long portion 23 a and the short portion 23 b. The long portion 23a and the short portion 23b are provided with a long hole 23d in communication with each other in the opening 23c on one end side of the portion 23b. It has become. Side walls 23f and 23g (also referred to as sixth connecting members) are provided on the other end sides of the long portion 23a and the short portion 23b, respectively, and the side walls 23f and 23g are respectively provided with 6A bearing holes. 23h and a 6B bearing hole 23i are provided.

  In the second hinge case 23, a second main hinge shaft 21 and a second sub hinge shaft 22 are fitted into a long hole 23d, and a fourth turning gear 30 of a second synchronous rotation mechanism 31 described later on an oval shape. The eighth connecting member that also serves as the second friction plate 43 of the second friction torque generating mechanism 55, the friction portion 44a of the second friction torque generating mechanism 55 described later, and the fixed cam portion 45b of the second suction mechanism 45 described later are both surfaces. The seventh connecting bearing 30a, the seventh connecting bearing hole 30b, the eighth connecting bearing hole 43a, and the second rotating gear 20 that also serve as the tenth connecting member of the first synchronous rotating mechanism 15, respectively. 8B bearing hole 43b / 9A bearing hole 44c, 9B bearing hole 44d, 6A bearing hole 23h provided in second hinge case 23, 6B bearing hole 2 i, and the 10A bearing hole 20a and the 10B bearing hole 20b are rotatably supported by the bearings. The second main hinge shaft 21 and the second sub-hinge shaft 22 are connected to the second hinges at both ends. It protrudes outward from the case 23.

  At both ends where the second main hinge shaft 21 penetrates the second hinge case 23, there are a first support member 24 and a second support member 25 respectively attached to the second housing 3 side, and these first and second supports. Support members B made of third and fourth connecting plates 39 and 40 attached to the upper surface side and the lower surface side of the members 24 and 25 are attached, and both end portions where the second sub hinge shaft 22 penetrates the second hinge case 23 Each of them has a cylindrical third cylindrical cover 32 and a fourth cylindrical cover 33 attached by mounting screws 32e and 33e.

  As shown in FIGS. 5 and 7, the second main hinge shaft 21 has a first circular shaft portion 21 b, a first circular shaft portion 21 b, and a first circular shaft portion 21 b, following the first deformed shaft portion 21 a having a rectangular cross section from one end side. A flange portion 21c having a diameter larger than that of the portion 21b, a second deformation shaft portion 21d, a second circular shaft portion 21e, and a third deformation shaft portion 21f having a substantially rectangular cross section are provided. The first deformation shaft portion 21a and the third deformation shaft portion 21f are provided. The deformed shaft portion 21f is provided with female screw portions 21g and 21h from the respective end portions in the axial direction. Further, the third deformation shaft portion 21f is provided with a male screw portion 21i.

  As shown in FIGS. 5 and 7, the second sub-hinge shaft 22 includes a first deformed shaft portion 22a, a first circular shaft portion 22b, and a first circular shaft portion 22b that are substantially rectangular in cross section from one end side. The second circular shaft portion 22c having a slightly larger diameter, the third circular shaft portion 22d having a slightly smaller diameter than the second circular shaft portion 22c, and the second deformation shaft portion 22e having a substantially rectangular cross section, The first deformation shaft portion 22a and the second deformation shaft portion 22e are provided with female screw portions 22f and 22g in the axial direction, respectively, and are formed on the cylindrical shape that covers the first deformation shaft portion 22a and the second deformation shaft portion 22e. The 3rd cylindrical cover 32 and the 4th cylindrical cover 33 are attached with the attachment screws 32e and 33e.

  The synchronous rotation mechanism C includes a first synchronous rotation mechanism 15 provided on each side of each of the first main hinge shaft 7 and the first sub-hinge shaft 8 and the second main hinge shaft 21 and the second sub-hinge shaft 22. The first main hinge shaft 7 and the first sub-hinge shaft 8 and the second main hinge shaft 21 and the second sub-hinge shaft 22 are provided on the other side portions of the second synchronous rotating mechanism 31.

  Of these, the first synchronous rotation mechanism 15 includes a first A circular insertion hole 16a in which the first sub-hinge shaft 8 and the second sub-hinge shaft 22 are arranged side by side, as shown in FIGS. A first double gear 16 that also serves as a first interconnection member that rotatably connects the first sub-hinge shaft 8 and the second sub-hinge shaft 22 to the 1B circular insertion hole 16b. The first double gear 16 has a tooth portion 17b that meshes with a tooth portion 16c provided on one end portion side, and is provided by inserting and engaging the first deformation shaft portion 7a of the first main hinge shaft 7 with the deformation attachment hole 17a. The first gear 17 and the tooth portion 18b that meshes with the tooth portion 16d provided on the other end side of the first double gear 16 have a deformation mounting hole in the first deformation shaft portion 21a of the second main hinge shaft 21. The second gear 18 provided by inserting and engaging 8a, the first circular shaft portion 7b of the first main hinge shaft 7, and the first circular shaft portion 8b of the first sub hinge shaft 8 are connected to the second A bearing hole 19a. A first turning gear 19 having an oval shape and having a tooth portion 19c on one end side, and a first circular shaft portion of the second main hinge shaft 21 provided to be rotatably inserted into the second B bearing hole 19b. 21b and the first circular shaft portion 22b of the second sub-hinge shaft 22 are provided so as to be rotatably inserted into the 10A bearing hole 20a and the 10B bearing hole 20b. The second turning gear 20 also serves as a tenth connecting member having a tooth portion 20c that meshes with the tooth portion 19c of the first turning gear 19.

  As shown in FIGS. 4, 5, and 9, the second synchronous rotation mechanism 31 has a second A circular insertion hole in which the first sub-hinge shaft 8 and the second sub-hinge shaft 22 are provided in the central portion axial direction. 26a and a second double gear 26 also serving as a second interconnection member provided rotatably through the second B circular insertion hole 26b, and a tooth portion 27b meshing with a tooth portion 26c provided on one end side of the second double gear 26 Provided on the other end side of the second gear 26 and the third gear 27 provided by inserting and engaging the first deformation shaft portion 21a of the second main hinge shaft 21 into the deformation attachment hole 27a. A fourth gear 29 that has a tooth portion 29b that meshes with the tooth portion 26d and that is provided by inserting and engaging the third deformation shaft portion 7f of the first main hinge shaft 7 into the deformation attachment hole 29a; The first shaft 7 The shaft portion 7b and the first circular shaft portion 8b of the second sub-hinge shaft 8 are rotatably inserted into the 5A bearing hole 28a and the 5B bearing hole 28b, and have a planar oval shape. A third turning gear 28 that also serves as a fifth connecting member having a tooth portion 28c on one end side, and a tooth portion 30c that meshes with the tooth portion 28c of the third turning gear 28, and also has a planar oval shape The first circular shaft 21b of the second main hinge shaft 21 and the first circular shaft portion 22b of the second sub-hinge shaft 22 are rotatably provided through the seventh A bearing hole 30a and the seventh B bearing hole 30b. 7 and a fourth turning gear 30 that also serves as a connecting member.

  Next, the friction torque generating mechanism D includes a first friction torque generating mechanism 34 provided on the first main hinge shaft 7 side and a second friction torque generating mechanism 55 provided on the second main hinge shaft 21 side. It is configured.

  Among these, the first friction torque generating mechanism 34 is provided only on the first main hinge shaft 7 side, and the second deformation of the first main hinge shaft 7 is transferred to the third A bearing hole 35a and the third B bearing 35b, respectively. The shaft portion 7d and the third circular shaft portion 8d of the first sub-hinge shaft 8 are rotatably inserted to serve as a third connecting member that is opposed to the elongated hole 6d of the first hinge case 6 with a predetermined interval. The second deformation shaft portion 7d of the first main hinge shaft 7 and the third circular shaft portion 8d of the first sub hinge shaft 8 can be rotated to the first friction plate 35, the fourth A bearing hole 37c and the fourth B bearing hole 37d, respectively. To the deformed insertion hole 41a and the fourth connecting member 37 having a friction part 37a that is disposed at a predetermined interval in the elongated hole 6d of the first hinge case 6 A first friction washer 41 interposed between the flange portion 7c of the first main hinge shaft 7 and the first friction plate 35 by inserting and engaging the second deformation shaft portion 7d of the first main hinge shaft 7; A second friction washer 42 that is inserted between and engaged with the second deformation shaft portion 7d of the first main hinge shaft in the deformation insertion hole 42a and interposed between the friction portion 37a of the fourth connecting member 37, and will be described later. The first elastic means 38 is configured. Note that the spacer cylinder portions 35d and 37e have a common shaft center on the side of the third B bearing hole 35b and the fourth B bearing hole 37d through which the first friction plate 35 and the first sub hinge shaft 8 of the fourth connecting member 37 are inserted. It is provided integrally. Further, on both surfaces surrounding the 3A bearing hole 35a of the first friction plate 35, narrow rice processing portions 35c and 35e are provided, and the friction portion 37a of the fourth connecting member 37 is also particularly as shown in FIG. The Nanakome processing part 37f is provided. In addition, the both sides of the first friction washer 41 and the second friction washer 42 are provided with tongue-removed portions 41b, 41c and 42b, 42c, which are devised so as to create stable friction torque.

  The second friction torque generating mechanism 55 is provided only on the second main hinge shaft 21 side, and the second deformation shaft portion of the second main hinge shaft 21 is inserted into the respective 8A bearing hole 43a and 8B bearing hole 43b. 21d and the third circular shaft portion 22d of the second sub-hinge shaft 22 are rotatably inserted into the second hole 23d of the second hinge case 23 so as to face each other at a predetermined interval. The second deformed shaft portion 21d of the second main hinge shaft 21 and the third circular shaft portion 22d of the first sub hinge shaft 22 are rotatably inserted into the friction plate 43, the ninth A bearing hole 44c, and the ninth B bearing hole 44d, respectively. A ninth connecting member 44 having a friction portion 44a that is disposed at a predetermined interval in the long hole 23d of the second hinge case 23; A third friction washer interposed between the flange portion 21c of the second main hinge shaft 21 and the friction plate 43 by inserting and engaging the second deformation shaft portion 21d of the second main hinge shaft 21 into the shape insertion hole 56a. 56, and the second deformation shaft portion 21d of the second main hinge shaft 21 is inserted and engaged with the deformation insertion hole 57a so as to be interposed between the second friction plate 43 and the friction portion 44a of the ninth connecting member 44. The fourth friction washer 57 and second elastic means 58 to be described later are included. Note that the spacer cylinder portions 43d and 44e have a common shaft center on the side of the 8B bearing hole 43b and the 9B bearing hole 44d through which the second friction plate 43 and the second sub hinge shaft 22 of the ninth connecting member 44 are inserted. It is provided integrally. Furthermore, on the both surfaces surrounding the 8A bearing hole 43a of the second friction plate 43, Nanako rice processing parts 43c and 43e are provided, and the friction part 44a of the ninth connecting member 44, in particular, as shown in FIG. The Nanakome processing part 44f is provided. In addition, the both sides of the third friction washer 56 and the fourth friction washer 57 are provided with Nanako processing portions 56b, 56c and 57b, 57c, which are devised so as to create stable friction torque.

  Next, the suction mechanism E will be described. The suction mechanism E includes a first suction mechanism 36 provided on the first main hinge shaft 7 side on the first hinge case 6 side and a second suction provided on the second main hinge shaft 21 side on the second hinge case 23 side. Mechanism 45.

  First, the first suction mechanism 36 includes a fixed cam portion 37b provided on one side of the fourth connecting member 37 and a rotating cam portion 47b on the side facing the fixed cam portion 37b. A deformation insertion hole 47a provided in the axial direction of the axial center portion is inserted into and engaged with the second deformation shaft portion 7d of the second deformation shaft portion 7d, and the first main hinge shaft 7 is provided so as to be slidable in the axial direction while being restricted in rotation. 1 cam follower 47 and the 1st elastic means 38 of the elastic means F mentioned later are comprised.

  The second suction mechanism 45 includes a fixed cam portion 44b provided on one side of the ninth connecting member 44 and a rotating cam portion 51b on the side facing the fixed cam portion 44b. A second cam provided to be slidable in the axial direction while being constrained to rotate by the second main hinge shaft 21 by inserting and engaging a deformation insertion hole 51a provided in the axial direction of the axial center portion of the second deformation shaft portion 21d. The follower 51 and the second elastic means 58 of the elastic means F described later are configured.

  Next, the elastic means F includes a first elastic means 38 provided on the first main hinge shaft 7 side and a second elastic means 58 provided on the second main hinge shaft 21 side.

  Among these, the first elastic means 38 includes a plurality of disc springs formed by inserting the second circular shaft portion 7e of the first main hinge shaft 7 provided adjacent to the first cam follower 47 into each insertion hole 48a. 48, a presser washer 49 having a deformation insertion hole 49 a provided adjacent to the disc spring 48, and a nut 50 attached to the male thread portion 7 i of the first main hinge shaft 7. Then, by tightening the nut 50, the first elastic means 38 brings the first cam follower 47 of the first suction mechanism 36 into pressure contact with the fixed cam portion 37b of the fourth connecting member 37, and the first friction torque generating mechanism. A function of creating a friction torque is provided between one side of the first friction plate 35 and the flange portion 7c, and between the other side of the first friction plate 35 and the friction portion 37a.

  Next, the second elastic means 58 includes a plurality of disc springs formed by inserting the second circular shaft portions 21e of the second main hinge shaft 21 provided adjacent to the second cam follower 51 into the insertion holes 52a. 52, a presser washer 53 having a deformation insertion hole 53 a provided adjacent to the disc spring 52, and a nut 54 attached to the male thread portion 21 i of the second main hinge shaft 21. Then, by tightening the nut 54, the second elastic means 58 brings the second cam follower 51 of the second suction mechanism 45 into pressure contact with the fixed cam portion 44b of the ninth connecting member 44, and the second friction torque generating mechanism. The second friction plate 43 has a function of creating a friction torque between one side of the second friction plate 43 and the flange portion 21c and between the other side of the second friction plate 43 and the friction portion 44a.

  Next, the operation of the multi-axis hinge 4 will be described. In particular, as shown in FIG. 19A, the second housing 3 is moved to the first housing 2 from the closed state in which the second housing 3 is closed with respect to the first housing 2 at an opening / closing angle of 0 °. On the other hand, when the first synchronous rotating mechanism 15 and the second synchronous rotating mechanism 31 operate simultaneously, the first housing 2 is also opened. That is, as the second casing 3 is opened, the third turning gear 28 and the fourth turning gear 30 connected to the second main hinge shaft 21 and the second sub hinge shaft 22 support the second sub hinge shaft 22. The first swivel gear that also rotates in the clockwise direction and also serves as a second connecting member coupled to the first main hinge shaft 7 and the first sub hinge shaft 8 meshing with the third swivel gear 28 and the fourth swivel gear 30. 19 and the second turning gear 20 serving as the tenth connecting member rotate counterclockwise around the first sub-hinge shaft 8 as a fulcrum. As a result, the support member B and the attachment member A attached to the second main hinge shaft 21 and the first main hinge shaft 7 rotate in the opposite directions, and the second housing 3 and the first housing 2 are synchronized. Open in opposite directions.

  In FIGS. 19A to 19E, since the first casing 2 side is shown as a reference, only the second casing 3 seems to rotate. The housing 2 and the second housing 3 are opened and closed by rotating in the opening direction and the closing direction at the same angle by the first synchronous rotation mechanism 15 and the second synchronous rotation mechanism 31.

  In this way, the first housing 2 and the second housing 3 are opened from the closed state shown in FIG. 19A to 360 ° in total as shown in FIG. , It will be closed to the 0 ° position. That is, the second housing 3 and the first housing 2 opened to 360 ° are closed via the first synchronous rotation mechanism 15 and the second synchronous rotation mechanism 31 by rotating in the opposite direction to the previous one. And can be returned to the closed state at the original opening / closing angle of 0 °.

  During the opening / closing operation of the first casing 2 and the second casing 3, the first casing 2 and the first casing 3 are connected to the first casing 3 by the friction torque generated by the first friction torque generating mechanism 34 and the second friction torque generating mechanism 55. Since the housing 2 can be stopped in a free stop, and can be stopped and held more stably by the friction torque generated by the first and second friction torque generating mechanisms 34 and 55, the touch-type second housing 3 Even when a touch operation is performed on the, since the stop position of the second housing 3 is stable with respect to the first housing 2, the second housing 3 does not easily fall in the direction in which the second housing 3 is pushed. It is.

  In addition, the first suction mechanism 36 and the second suction mechanism 45 allow the first cam follower 47 to be used in the embodiment at an opening / closing angle of 0 ° and 360 ° between the first housing 2 and the second housing 3. And the convex portions of the rotating cam portions 47b and 51b of the second cam follower 51 fall into the concave portions of the fixed cam portion 44b of the fourth connecting member 37 and the ninth connecting member 44, and automatically rotate, The stop position can be kept stable (latchless function). The stable stop angle can be configured to function at other opening / closing angles by changing the cam shape and the installation position.

  The multi-axis hinge 4 according to the present invention reduces the inter-axis distance of each hinge shaft (the first main hinge shaft 7, the first sub hinge shaft 8, the second main hinge shaft 21, and the second sub hinge shaft 22). Therefore, when the first casing 2 and the second casing 3 are opened and closed, the gap generated between the rear end portions of the first casing 2 and the second casing 3 can be reduced as much as possible. Is.

  Further, the multi-axis hinge 4 according to the present invention has an inner structure of the first hinge case 6, the second hinge case 23, and the first cylindrical cover 13, particularly as shown in FIG. Since it is hidden by the second cylindrical cover 14, the third cylindrical cover 32, and the fourth cylindrical cover 33 and is not exposed to the outside, the appearance is neat and dust and dust are multiaxial during use. It is possible to prevent it from becoming unsightly or malfunctioning by adhering to the internal structure of the hinge 4.

  Therefore, according to the multi-axis hinge 4 according to the present invention, the notebook computer 1 can be used in its original manner, and the first housing 2 is connected to the second housing 3 with the multi-axis hinge 4. Are bent in the opposite direction to each other to form a substantially L hour shape, a mountain shape, or a flat plate shape by overlapping them. It can be used in various ways.

  Since the present invention is configured as described above, the first housing and the second housing are opened in synchronization with each other, and are opened and closed in a total range of 360 °, particularly in electronic devices such as notebook computers and others. In this case, it is preferably used as a multi-axis hinge. In particular, a notebook personal computer is preferably used for a tablet having a function as a tablet.

A Mounting member B Support member C Synchronous rotation mechanism D Friction torque creation mechanism E Suction mechanism F Elastic means 1 Notebook PC 2 First housing 3 Second housing 4 Multi-axis hinge 6 First hinge case 7 First main hinge shaft 8 1st sub hinge shaft 9 1st attachment member 10 2nd attachment member 11 1st connection plate 12 2nd connection plate 15 1st synchronous rotation mechanism 16 1st double gear (1st interconnection member)
16c, 16d, 19c, 20c, 26c, 26d, 28c, 30c Teeth 17 First gear 18 Second gear 19 First turning gear (second connecting member)
20 Second turning gear (tenth connecting member)
21 2nd main hinge shaft 22 2nd sub hinge shaft 23 2nd hinge case 24 1st support member 25 2nd support member 27 3rd gear 28 3rd turning gear (5th connection member)
29 4th gear 30 4th turning gear (seventh connecting member)
31 Second Synchronous Rotation Mechanism 34 First Friction Torque Creation Mechanism 36 First Suction Mechanism 39 Third Connection Plate 40 Fourth Connection Plate 45 Second Suction Mechanism 55 Second Friction Torque Creation Mechanism

Claims (8)

  A multi-axis hinge that is slidably connected using four hinge shafts in which a first housing and a second housing of an electronic device are arranged in parallel, wherein the hinge shaft is configured in a first hinge case. A main hinge shaft and a first sub-hinge shaft are disposed so as to be rotatable via a plurality of connecting members, and an attachment member attached to the first housing is attached to the first main hinge shaft, and a second A second main hinge shaft and a second sub hinge shaft of the hinge shaft are disposed in a hinge case so as to be rotatable via a plurality of connecting members, and the second main hinge shaft is attached to the second housing. A support member to be attached to each other is attached, and the first sub-hinge shaft and the second sub-hinge shaft can be rotated with each other via an interconnecting member disposed on each side. A first synchronous rotation mechanism provided on one side of each of the first main hinge shaft, the first sub-hinge shaft, the second main hinge shaft, and the second sub-hinge shaft; The attachment member and the support member are synchronized by a second synchronous rotation mechanism provided on the other side of each of the main hinge shaft, the first sub hinge shaft, the second main hinge shaft, and the second sub hinge shaft. And the first main hinge shaft and the second main hinge shaft rotate at the same time, and the friction torque is applied to the first main hinge shaft and the second main hinge shaft, respectively. A multi-axis hinge comprising a creation mechanism and a suction mechanism.   The attachment member includes a first attachment member and a second attachment member attached to both end portions of the first main hinge shaft, and first and second connections for connecting the first attachment member and the second attachment member. The support member includes a first support member and a second support member that are attached to both end portions of the second main hinge shaft, and connects the first support member and the second support member. The multi-axis hinge according to claim 1, wherein the multi-axis hinge is composed of third and fourth connecting plates.   Cylindrical covers are attached to both ends of the first sub-hinge shaft and the second sub-hinge shaft, and the outer end surfaces of these cylindrical covers are flush with the outer end surfaces of the mounting member and the support member. The multi-axis hinge according to claim 1, wherein:   The first synchronous rotation mechanism includes a first double gear formed by rotatably inserting the first sub hinge shaft and the second sub hinge shaft on one side of the first housing and the second housing, A first gear and a second gear which are engaged with the respective tooth portions of the first double gear and are inserted and engaged with the first main hinge shaft and the second main hinge shaft, and the first main hinge shaft and the A first swivel gear provided with teeth on one end side where the first sub hinge shafts are rotatably inserted, and meshed with the first swivel gear, the second main hinge shaft, and the second sub hinge shaft. And a second swivel gear having a tooth portion that meshes with the tooth portion of the first swivel gear on one end side of each of the first swivel gear. The symptom, multi axis hinge of claim 1. The second synchronous rotation mechanism includes a second turning gear formed by rotatably inserting the first sub hinge shaft and the second sub hinge shaft on the other side of the first housing and the second housing; A third gear and a fourth gear which are engaged with the respective teeth of the second swivel gear and are inserted and engaged with the first main hinge shaft and the second main hinge shaft, and the first main hinge shaft. And a third swivel gear provided with a tooth portion on one end side where the first sub hinge shaft is rotatably inserted, and meshed with the third swivel gear, the second main hinge shaft and the second sub The hinge shaft is constituted by a fourth swivel gear having a tooth portion meshing with the tooth portion of the third swivel gear on one end side where the hinge shafts are rotatably inserted. To multi-axis hinge of claim 1.   The friction torque generating mechanism includes a first friction torque generating mechanism provided on the first main hinge shaft side and a second friction torque generating mechanism provided on the second main hinge shaft, and the first friction generating mechanism. 2. The multi-axis hinge according to claim 1, wherein the actuator acts on the first main hinge shaft, and the second friction torque generating mechanism acts on the second main hinge shaft.   The suction mechanism includes a first suction mechanism provided on the first main hinge shaft side and a second suction mechanism provided on the second main hinge shaft side, and the first suction mechanism is the first suction mechanism. 2. The multi-axis hinge according to claim 1, wherein the multi-axis hinge acts on one main hinge shaft, and the second suction mechanism acts on the second main hinge shaft.   An electronic apparatus comprising the multi-axis hinge according to claim 1.

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