JP2010249209A - Biaxial hinge of small electronic equipment and small electronic equipment using this biaxial hinge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a biaxial hinge and small electronic equipment using this biaxial hinge, constituted so that part of a hinge shaft and a hinge cover of the hinge does not project to an external part, when opening a first casing and a second casing of the small electronic equipment. <P>SOLUTION: This biaxial hinge of the small electronic equipment makes a closing state of covering an upper surface of an operation part by mutually superposing the first casing and the second casing, and an opening state of exposing the upper surface of the operation part by mutually opening the first casing and the second casing in the vertical direction, by mutually openably-closably connecting the first casing and the second casing. This biaxial hinge is solved by a base member, a suction hinge made to act on a first bracket installed in a first installing part of this base member and installed in the first casing, a tilt hinge made to act on a second bracket installed in a second installing part of the base member and installed in the second casing, and an operation control means arranged between the suction hinge and the tilt hinge and determining order of operation of the suction hinge and the tilt hinge. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  INDUSTRIAL APPLICABILITY The present invention provides a biaxial shaft suitable for use when relatively opening and closing a first casing provided with an operation unit constituting a small electronic device and a second casing provided with a display unit in a vertical direction. The present invention relates to a hinge and a small electronic device using the biaxial hinge.

  Conventionally, in a small electronic device, a first casing provided with an operation unit on the upper surface and a second casing provided with a display unit on the lower surface are connected so as to be openable and closable in the vertical direction. As a hinge for forming a closed state in which the upper surface of the operation unit of the first case is covered with the second case and an open state in which the operation unit of the first case is exposed to make the display unit easier to see. The thing of the structure described in the following patent document 1 is well-known.

  The hinge described in Patent Document 1 has one hinge shaft, and has a suction function and a tilt function by providing a cam mechanism. However, since there is only one hinge shaft, as shown in FIGS. 43 and 44, when the first casing 60 and the second casing 65 are opened, the hinge body 70 (hinge shaft, hinge cover, or cam mechanism) is used. Part of the elastic member or the like) protrudes to the front side, and the opened first housing 60 and the second housing 65 are not in a flat state between the first housing 60 and the second housing 65. There was a problem that the design was also restricted.

JP-A-2005-140152

  The present invention has been made to solve the above-described problems, and an object of the present invention is to connect the end portions of the first housing and the second housing of the above-described small electronic device so that they can be opened and closed in the vertical direction. This is a two-axis hinge of a small electronic device configured so that the hinge shaft and the hinge cover portion of the hinge do not protrude to the front side when the first housing and the second housing are opened. A small electronic device using a biaxial hinge is to be provided.

  In order to achieve the above object, according to the present invention, a first casing having an operation unit on an upper surface and a second casing having a display unit on a lower surface are connected to each other so as to be openable and closable. And the second casing are overlapped with each other to cover the upper surface of the operation section, and the first casing and the second casing are opened in the vertical direction so that the upper surface of the operation section is covered. A biaxial hinge of a small electronic device that creates an open state to be exposed, the biaxial hinge being attached to a base member and a first attachment portion of the base member and attached to the first housing. A suction hinge portion that is applied to the bracket; a tilt hinge portion that is attached to the second attachment portion of the base member and is attached to the second housing; and that is applied to the second bracket; the suction hinge portion; Provided between tilt hinges Is characterized in that it is constituted by an operation control means for determining the sequence of operation of the suction hinge tilt hinge portion.

  In that case, this invention can make the said base member into a flat plate shape, and can make the said 1st attachment part and 2nd attachment part adjoin to the plane part of the said base member.

  In the present invention, the operation control means may be configured to first operate the suction hinge portion during the opening operation of the first casing and the second casing, and then operate the tilt hinge section and when the closing operation is performed. First, the tilt hinge part is operated, and then the suction hinge part is operated.

  The present invention further includes a stopper portion having a flange portion at one end portion where the operation control means is rotatably inserted into the base member, and a stopper piece coaxially attached to the other end portion of the stopper portion. And a driven gear having a driven tooth portion, the flange portion of the stopper portion and the rotation angle of the base member to contact each other to prevent the stopper portion from rotating and the first bracket to prevent the second bracket from rotating. The contact portion provided at the edge of the first bearing portion of the bracket, the engagement recess that engages with the flange portion according to the rotation angle of the base member, and the driven tooth portion of the driven gear that meshes with the rotation angle. It can comprise with the drive tooth part provided in the 2nd bracket.

  The present invention also provides a suction hinge portion in which the biaxial hinge is applied to a base member, a third bracket attached to the third attachment portion of the base member and attached to the first housing, and the base. A tilt hinge portion attached to a fourth mounting portion of the member and acting on a fourth bracket attached to the second housing; and the suction hinge portion provided between the suction hinge portion and the tilt hinge portion. And an operation control means for determining the order of operations of the tilt hinge portion.

  In the present invention, the base member can be provided with the third attachment portion and the fourth attachment portion on the substrate portion and the side plate bent from the substrate portion, respectively. This side plate can be separately provided on the substrate portion.

  In this case, the present invention provides the operation control means with a guide plate having a pointed head and slidably attached to the second base member in the same direction as the rotation direction of the first hinge shaft, and an axial position of the outer periphery. A guide shaft having a notch portion and a guide groove provided in the radial direction by shifting the guide shaft and attached by being slidably biased in one direction between the support portion provided in the fourth attachment portion, and a second base It is attached to a guide slot provided in the third attachment portion of the member so that it can move up and down, and its one end is opposed to a stopper provided at the edge of the third bearing portion of the third bracket, and the other end The control pin can be configured to face the inclined portion side of the guide plate, and the engagement edge provided on the edge of the fourth bearing portion of the fourth bracket.

  And this invention can comprise a small electronic device using the above-mentioned biaxial hinge as a connection means of a 1st housing | casing and a 2nd housing | casing.

  According to the present invention, the first casing having the operation unit on the upper surface and the second casing having the display unit on the lower surface are connected to each other so as to be openable and closable, and the first casing and the second casing are connected to each other. A closed state in which the casings are overlapped with each other to cover the upper surface of the operation unit, and an open state in which the first casing and the second casing are opened in the vertical direction to expose the upper surface of the operation unit. A biaxial hinge of a small electronic device to be produced is a base member, a suction hinge portion that is attached to a first attachment portion of the base member and is applied to a first bracket attached to the first housing, and the base member A tilt hinge part that is attached to the second attachment part and acts on a second bracket that is attached to the second housing, and is provided between the suction hinge part and the tilt hinge part, and the suction hinge part Tilt hinge Since the operation control means for determining the order of the operation is used, when the first housing and the second housing are opened, the two-axis hinges are connected to the operation unit side of the first housing and the second housing. Protruding to the display unit side (that is, the front side 9) can be prevented, and a small electronic device having such a configuration can be provided.

  The biaxial hinge includes a base member, a suction hinge portion attached to a third attachment portion of the base member and attached to the first housing, and a suction hinge portion of the base member. A tilt hinge part that is attached to the four attachment parts and acts on a fourth bracket that is attached to the second housing, and is provided between the suction hinge part and the tilt hinge part, and the suction hinge part and the tilt hinge part In addition to the above effects, it is possible to prevent a gap from being generated at the connecting end portion of the first casing and the second casing that are opened at 180 degrees. Moreover, the small electronic device comprised in that way can be provided.

It is a perspective view of the middle open state of the 1st case and the 2nd case of the small electronic equipment using the biaxial hinge concerning the present invention. It is a perspective view of the fully opened state of the 1st housing | casing and 2nd housing | casing of a small electronic device using the biaxial hinge which concerns on this invention. It is the perspective view which looked at the biaxial hinge in the closed state of the 1st housing | casing and 2nd housing | casing of the small electronic device shown in FIG. 1 and FIG. 2 from the right rear side. It is the perspective view which looked at the biaxial hinge shown in FIG. 3 from the left rear side. FIG. 5 is an exploded perspective view of the biaxial hinge shown in FIGS. 3 and 4. It is the perspective view which looked at the biaxial hinge in the 60 degree open state of the 1st housing | casing and 2nd housing | casing of the small electronic device shown in FIG. 1 and FIG. 2 from the right back side. It is the perspective view which looked at the biaxial hinge shown in FIG. 6 from the left rear side. It is the perspective view which looked at the biaxial hinge in the 90 degree open state of the 1st housing | casing and 2nd housing | casing of a small electronic device shown in FIG. 1 and FIG. 2 from the right back side. It is the perspective view which looked at the biaxial hinge shown in FIG. 8 from the left rear side. It is the side view which looked at the biaxial hinge in the open / closed state of 150 degree | times of the 1st housing | casing and 2nd housing | casing of the small electronic device shown in FIG. 1 and FIG. 2 from the one side. It is the perspective view which looked at the biaxial hinge shown in FIG. 10 from the other side. It is the side view which looked at the biaxial hinge in the open / closed state of 180 degree | times of the 1st housing | casing and 2nd housing | casing of the small electronic device shown in FIG. 1 and FIG. 2 from the one side. It is the perspective view which looked at the biaxial hinge shown in FIG. 12 from the other side. It is a perspective view in the closed state in the state where the biaxial hinge concerning the present invention was built in the small electronic equipment. It is a perspective view of the fully opened state in the state which incorporated the biaxial hinge which concerns on this invention in a small electronic device. It is a perspective view of the base member of the biaxial hinge which concerns on this invention. It is a perspective view of the 1st bracket of the biaxial hinge concerning the present invention. It is a perspective view of the 2nd bracket of the biaxial hinge concerning the present invention. It is a perspective view of the 1st shaft of the biaxial hinge which concerns on this invention. It is a perspective view of the 2nd shaft of the biaxial hinge which concerns on this invention. It is a perspective view of the driven gear of the biaxial hinge concerning the present invention. It is a perspective view of the stopper part of the biaxial hinge which concerns on this invention. It is a perspective view of the control stopper of the biaxial hinge which concerns on this invention. It is the perspective view which looked at the other Example of the biaxial hinge which concerns on this invention from the right front. It is the perspective view which looked at the biaxial hinge shown in FIG. 24 from the left front. FIG. 26 is an exploded perspective view of the biaxial hinge shown in FIGS. 24 and 25. FIG. 26 is a perspective view of the biaxial hinge shown in FIGS. 24 and 25 in the middle of opening (90 degrees). FIG. 26 is a perspective view of the biaxial hinge shown in FIGS. 24 and 25 in a fully opened state (180 degrees). It is a perspective view for demonstrating operation | movement of the operation control means of the biaxial hinge shown to FIG. 24 and FIG. It is a perspective view for demonstrating operation | movement of the operation control means of the biaxial hinge shown to FIG. 24 and FIG. It is a perspective view for demonstrating operation | movement of the operation control means of the biaxial hinge shown to FIG. 24 and FIG. It is a perspective view for demonstrating operation | movement of the operation control means of the biaxial hinge shown to FIG. 24 and FIG. FIG. 26 is a perspective view of a base member of the biaxial hinge shown in FIGS. 24 and 25. FIG. 26 is a perspective view of a third bracket of the biaxial hinge shown in FIGS. 24 and 25. FIG. 26 is a perspective view of a fourth bracket of the biaxial hinge shown in FIGS. 24 and 25. FIG. 26 is a perspective view of a control pin of the biaxial hinge shown in FIGS. 24 and 25. FIG. 26 is a perspective view of a guide pin of the biaxial hinge shown in FIGS. 24 and 25. FIG. 26 is a perspective view of a guide plate of the biaxial hinge shown in FIGS. 24 and 25. FIG. 26 is a perspective view of a locking ring of the biaxial hinge shown in FIGS. 24 and 25. FIG. 26 is a perspective view of a guide shaft of the biaxial hinge shown in FIGS. 24 and 25. FIG. 26 is a side view of the guide shaft of the biaxial hinge shown in FIGS. 24 and 25. FIG. 26 is a perspective view of a fully opened state in a state in which the biaxial hinge shown in FIGS. 24 and 25 is incorporated into a small electronic device. It is a perspective view of the intermediate open state of the small electronic device using the conventional 1 axis hinge. It is a perspective view of the fully opened state of the small electronic device using the conventional 1 axis hinge.

    Embodiments of the present invention will be described below in detail with reference to the drawings.

  1 to 23 show a biaxial hinge 1 according to the present invention and a small electronic device 2 using the biaxial hinge 1. The small electronic device 2 is exemplified by a notebook personal computer, but is not limited to this. Mobile phones, PDAs, and other small electronic devices are included.

  In particular, in FIGS. 1 to 2, a notebook personal computer as an example of the small electronic device 2 includes a first housing 3 provided with an operation unit 3a made of, for example, a keyboard on its upper surface, and a liquid crystal display device on its lower surface. 1 and FIG. 2 as means for connecting the end portions of the first casing 3 and the second casing 4 to each other. The biaxial hinge 1 shown in FIG. 3 and subsequent figures is used in the portion indicated by A in FIG. The operation unit 3a of the first housing 3 may be a touch panel type display unit, and a plasma display other than the liquid crystal display device, EL, or other display means can be used as the display unit.

  According to the drawing, the base member 5 constituting the biaxial hinge 1 is in the form of a flat plate, particularly as shown in FIG. 16, and the deformed first attachment with the constricted portion 5a interposed therebetween. The first attachment portion 5c provided with the hole 5b and the second attachment portion 5e provided with the modified second attachment hole 5d, and the stopper piece 5f provided on one side of the first attachment portion 5c side, Locking holes 5g and 5h are provided near the mounting hole 5b and the modified second mounting hole 5d, respectively. Furthermore, large and small mounting holes 5i and 5j described later are provided.

  The suction hinge portion 6 has a first hinge shaft 7, and this first hinge shaft 7 has a flange portion 7 a and a large deformation provided subsequent to the flange portion 7 a as shown in FIG. 19 in particular. A diameter portion 7b, a circular shaft portion 7c provided subsequent to the deformed large diameter portion 7b, a deformed medium diameter portion 7d provided subsequent to the circular shaft portion 7c, and the deformed medium diameter portion 7d. It is comprised from the deformation | transformation small diameter part 7e provided.

  This first hinge shaft 7 has its deformed large diameter portion 7b inserted and locked into the deformed first mounting hole 5b provided in the first mounting portion 5c of the base member 5, and is provided subsequent to the deformed large diameter portion 7b. The circular shaft portion 7c is inserted through and locked to the locking hole 5g of the base member 5 through the insertion hole 9a provided in the axial direction of the central portion and the locking piece 9b provided at the edge thereof. A friction washer 9 is attached. Subsequently, the first hinge shaft 7 pivotally supports the deformed intermediate diameter portion 7 d on the first bearing portion 8 b of the first bracket 8.

As shown in FIG. 17, the first bracket 8 is provided on the mounting plate portion 8a, the first bearing portion 8b raised from one side portion of the mounting plate portion 8a, and the first bearing portion 8b. It consists of a first bearing hole 8c, an engaging recess 8d provided at the edge of the first bearing portion 8b, and a contact portion 8e, and the circular shaft portion 7c of the first hinge shaft 7 can be rotated to the first bearing hole 8c. To penetrate. Note that in FIG. 17, what is indicated by an instruction symbol 8 f is an attachment hole for attachment to the first housing 3. The first hinge shaft 7 is attached so that the deformed medium diameter portion 7d is inserted into a deformation insertion hole 11a provided in the slide cam 11, and the slide cam 11 is slidable in the axial direction while restricting its rotation. A second cam portion 12 is formed on the slide cam 11 on the first bearing portion 8b side of the first bracket 8, and the second cam portion 12 surrounds the first bearing hole 8c of the first bearing portion 8b. It opposes the 1st cam part 10 provided in this. Following the slide cam 11, an elastic means 13 composed of a plurality of (5 in the embodiment) disc springs is being deformed into the insertion hole 13a provided in the axial direction of each central portion of the deformation middle diameter portion 7d. The presser washer 14 is attached by inserting the deformed insertion hole 14a provided in the axial direction of the center of the deformed small diameter part 7e into the deformed small diameter part 7e. A caulking portion 7f is provided on the plate in which the deformed small diameter portion 7e is exposed from the presser washer 14 by caulking so that the presser washer 14 does not come out.

  That is, the suction hinge portion 6 according to the above-described embodiment has a first hinge shaft 7 formed by inserting and deforming the deformed large diameter portion 7b into the deformed first mounting hole 5b of the first mounting portion 5c provided in the base member 5. And a first bearing hole 8c provided in the first bearing portion 8b raised from one side of the mounting plate portion 8a and the mounting plate portion 8a, and the deformation of the first hinge shaft 7 in the first bearing hole 8c. A first bracket 8 in which the middle diameter portion 7 d is rotatably inserted, and a locking piece 9 b are locked to a locking hole 5 g provided in the base member 5, and the circular shaft portion 7 c of the first hinge shaft 7 is locked. A first friction washer 9 provided between the base member 5 and the first bearing portion 8b of the first bracket 8 by inserting a circular insertion hole 9a provided in the central axis direction, and a first bearing hole 8c. On the side opposite to the side where the first friction washer 9 is provided. The first cam portion 10 provided to surround the first bearing hole 8c and the deformation middle diameter portion 7d of the first hinge shaft 7 are provided by being inserted into and engaged with the deformation insertion hole 11a provided in the central portion axial direction. The first camshaft, the second cam portion 12 provided on the side where the slide cam 11 faces the first cam portion 10, and the insertion hole 13 a provided adjacent to each slide cam 11 and the first camshaft 7 is formed by inserting the deformed small diameter portion 7e through the elastic means 13 composed of a plurality of disc springs provided by inserting the deformed medium diameter portion 7d and the deforming insertion hole 14a provided in the axial direction of the central portion. The presser washer 14 and a presser washer 7f provided so that the presser washer 14 does not come out by caulking the end of the deformed small diameter portion 7e exposed from the presser washer 14.

  The first cam portion 10 is formed of recesses 10a provided at intervals of 90 degrees on the end surface of the first bearing portion 8b, and the second cam portion 12 is formed of protrusions 12a provided at intervals of 90 degrees on the end surface of the slide cam 11. The suction means 15 is constituted by the elastic means 13.

  Next, the tilt hinge portion 20 has the second hinge shaft 21 as described above, and the second hinge shaft 21 continues to the flange portion 21a and the flange portion 21a as shown in FIG. The deformed large diameter portion 21b is provided, and the circular shaft portion 21c is provided following the deformed large diameter portion 21b. The deformed large diameter portion 21 b is inserted and locked into the deformed second mounting hole 5 d provided in the base member 5. The circular shaft portion 21c of the second hinge shaft 21 is inserted through the insertion hole 23a provided in the central axis direction, and the locking piece 23b provided at the edge thereof is inserted and locked into the locking hole 5h. A second friction washer 23 is attached. Subsequently, the second hinge shaft 21 rotatably supports the circular shaft portion 21 c on the second bearing portion 22 b of the second bracket 22. As shown in FIG. 18 in particular, the second bracket 22 includes a mounting plate portion 22a, a second bearing portion 22b suspended from the mounting plate portion 22a, and a second bearing provided on the second bearing portion 22b. It consists of a hole 22c, a drive tooth portion 22d provided at the edge of the second bearing portion 22b, and a locking hole 22e provided in the second bearing portion 22b, and the circular shape of the second hinge shaft 21 to the second bearing hole 22c. The shaft portion 21c is rotatably penetrated, and a third friction washer 24 is provided on the penetrating side through an insertion hole 24a provided in the axial direction of the central portion, and a locking piece provided on the edge portion thereof. 24 b is locked to the locking hole 22 e of the base member 5. Note that the support symbol 22 f is an attachment hole for attaching the second bracket 22 to the second housing 4. An elastic means 25 such as a spring washer and a presser washer 26 are attached to the circular shaft portion 21c through an insertion hole 25a and a deformation insertion hole 26a provided in each, and the circular shaft portion 21c is attached to a presser washer. By providing the caulking portion 21d by caulking the side protruding from 26, friction torque is generated at the portion where the second bearing portion 22b comes into pressure contact with the second friction washer 23 and the third friction washer 24 when the second bracket 22 rotates. Is configured to do.

  That is, the tilt hinge portion 20 according to the above embodiment includes the second hinge shaft 21 formed by inserting and deforming the deformed large diameter portion 21b into the deformed second mounting hole 5d of the second mounting portion 5e provided in the base member 5. The circular shaft portion 21c of the second hinge shaft 21 is rotatably inserted into the second bearing hole 22c provided in the mounting plate portion 22a and the second bearing portion 22b raised from one side of the mounting plate portion 22a. A circular insertion hole provided in the axial direction of the central portion of the circular shaft portion 21c of the second hinge shaft 21 by locking the locking piece 23b to the second bracket 22 and the locking hole 5h provided in the base member 5. 23a is inserted, and the second friction washer 23 provided between the base member 5 and the second bearing portion 22b of the second bracket 22 and the circular shaft portion 21c of the second hinge shaft 21 in the axial direction of the center portion thereof. Provided A third friction washer 24, which is inserted into and engaged with the insertion hole 24a of the shape and the locking piece 24b protruding from the edge thereof is locked to the locking hole 22e provided in the second bracket 22; 3. An elastic means 25 such as a spring washer provided by inserting the circular shaft portion 21c into the insertion hole 25a adjacent to the three friction washer 24, and an insertion hole provided in the central portion axial direction adjacent to the elastic means 25 The presser washer 26 provided by inserting the circular shaft portion 21c into the guide 26a and the end of the circular shaft portion 21c exposed from the presser washer 26 are caulked to prevent the presser washer 26 from coming out. It consists of a caulking portion 21d.

  The second friction washer 23, the third friction washer 24, and the elastic means 25 arranged on both sides of the second bearing portion 22b of the second bracket 22 constitute a tilt mechanism 34.

  Next, the motion control means 30 for determining the operation order of the suction hinge portion 6 and the tilt hinge portion 20 has the shaft portion 31a rotatably inserted into the large mounting hole 5i provided in the constricted portion 5a of the base member 5. In particular, a restriction stopper 31 having a flange portion 31b as shown in FIG. 22, and a modified insertion hole 32a and a stopper piece, particularly as shown in FIG. 21, fixed to the shaft portion 31a of the restriction stopper 31. 32 b and a driven gear 32 having a driven tooth portion 32 c and a flange portion 31 b of the restriction stopper 31 are provided at the edge of the first bearing portion 8 b of the first bracket 8 in order to receive the flange portion 31 b of the restriction stopper 31. The edge of the second bearing portion 22b of the second bracket 22 that meshes with the engaging recess 8d, the driven tooth portion 32c of the driven gear 32, and the rotation angle thereof. And a driving tooth portion 22d provided. The indication symbol 33 attached to the small attachment hole 5j provided in the base member 5 is a stopper portion for restricting the rotation angle of the second bracket 22, and particularly as shown in FIG. 33a and a flange portion 33b.

  Next, the operation of the biaxial hinge 1 of the small electronic device 2 described above will be described.

  The biaxial hinge 1 according to the present invention may be a single one depending on what is to be attached, but in the present embodiment, the small electronic device 2 is located in the portion of the A view shown in FIGS. 1 and 2. One set (two pieces) is used, and as shown in FIG. 14, the first bracket 8 is attached to the rear portion of the first housing 3 so that it cannot be seen from the outside, and the second bracket 22 is attached to the second housing. The figure which the attachment to small electronic equipment 2 was completed by attaching to the rear part of body 4 so that it was not visible from the outside, and the portion of the back of base member 5 was provided in the 1st case 3 and 2nd case 4 It will be exposed to the outside through a slit not shown. In the following description of the operation, the operation of one of the two-axis hinges 1 will be described, but the left and right operations are the same. It goes without saying that the suction torque and tilt torque described below can be created by a pair of left and right biaxial hinges.

  Therefore, first, in a state where the first housing 3 and the second housing 4 are closed and overlap each other, the operation of the tilt hinge portion 20 is performed by the flange portion 31b of the restriction stopper 31 of the operation control means 30. However, since the second bracket 22 is prevented from rotating via the driven gear 32 by being in contact with the contact portion 8e of the first bracket 8, the suction hinge portion 6 is stably closed by the suction mechanism 15. The state is maintained.

  When the second housing 4 starts to open in the vertical direction with respect to the first housing 3 from this closed state, the tilt hinge portion 20 is locked to the first bracket 8 as described above. Without rotating, the base member 5 starts to rotate together with the first hinge shaft 7 of the suction hinge portion 6 with respect to the first bracket 8, and as shown in FIGS. At the opening angle, the stopper piece 5f provided on the base member 5 comes into contact with the end of the mounting plate portion 8a of the first bracket 8 as shown in FIGS. The movement can be stopped. At this time, as shown in FIG. 1 in particular, the portion of the biaxial hinge 1 does not protrude outside. When the second housing 4 is further opened with respect to the first housing 3, the contact of the first bracket 8 of the restriction stopper 33 that has prevented the rotation of the second bracket 22 of the tilt hinge portion 20 this time. Since the rotation restriction on the part 8e is released, the rotation restriction on the tilt hinge part 20 is released, and the second bracket 22 is opened with respect to the base member 5, so that the second housing 4 has 90 degrees or more. Opening is allowed.

  At an opening angle of 90 degrees or more where the second casing 4 is opened with respect to the first casing 3, the tilt mechanism 34 of the tilt hinge unit 20 operates and the second casing 4 is free-stopped. To be opened.

  As shown in FIGS. 12 and 13, when the second casing 4 is opened to 180 degrees with respect to the first casing 3, the edge of the second bearing portion 22 b of the second bracket 22 is stopped by the stopper. Further contact with the portion 31 prevents further opening operation. At this time, as shown in FIG. 2 in particular, the portion of the biaxial hinge 1 does not protrude to the outside, and the first housing 3 and the second housing 4 are in a flat state.

  At the same time, the restriction stopper 31 is fitted into the engaging recess 8d of the first bracket 8 via the driven gear 32 rotated by the drive tooth portion 22d provided on the second bracket 22, and the base member 5 rotates with respect to the first bracket 8. Will be blocked. Therefore, when the second housing 4 is to be closed from the 180 degree opened state, first, the second bracket 22 rotates in the opposite direction with respect to the base member 5 together with the second housing 4. The base member 5 is raised and rotated by being closed, and the second housing 4 is closed with respect to the first housing 3. When it is closed to 90 degrees, the regulating stopper 31 is rotated by the rotating second bracket 22 via the driven gear 32 and is disengaged from the engaging recess 8d of the first bracket 8, so that the rotation of the base member 5 is now performed. The suction mechanism 15 of the suction hinge portion 6 operates near the closed position, and the second housing 4 cannot be closed with respect to the first housing 3 via the suction hinge portion 6. Thus, the second housing 4 is automatically closed and locked in the closed state.

  24 to 42 show another embodiment of the biaxial hinge according to the present invention and a small electronic device using the biaxial hinge. The configurations of the suction hinge portion 49 and the tilt hinge portion 48 are almost the same as those of the first embodiment, and the same reference symbols as those of the first embodiment represent the same members. Therefore, the description of the configuration will be omitted, and will be described as necessary in the description of the operation.

  The biaxial hinge 35 of the second embodiment differs from that of the first embodiment in the configuration of the base member and the configuration of the operation control means. According to the drawing, as shown in FIG. 33, the second base member 36 has a pair of third plates provided on the substrate portion 36a and each side plate bent at a position shifted from one side portion of the substrate portion 36a. The mounting portion 36b and the fourth mounting portion 36c, and a support portion 37 raised on the other surface of the substrate portion 36a on the opposite surface of the fourth mounting portion 36c, are deformed to the third mounting portion 36b. A mounting hole 36d and a locking hole 36e are provided, and a deformation mounting hole 36f and a locking hole 36g are provided in the fourth mounting portion 36c, respectively. The support portion 37 is provided with a deformation insertion hole 37a. Further, a guide long hole 36h is provided in the third attachment portion 36b, a circular insertion hole 36i is provided in the fourth attachment portion 36c, and an attachment hole 36j is provided in the substrate portion 36a. Note that the third mounting portion 36b and the fourth mounting portion 36c may be provided on one side plate instead of separate side plates as illustrated.

  Each configuration of the suction hinge portion 49 and the tilt hinge portion 48 is the same as that of the first embodiment as described above. However, the third bracket 46 of the suction hinge portion 49 includes a mounting plate portion 46a, a third bearing portion 46b raised from one side of the mounting plate portion 46a, and a first bearing provided on the third bearing portion 46b. The cam portion 10 and the mounting hole 46e are the same as those of the previous embodiment, but the point that the stopper portion 46d is provided at the edge of the third bearing portion 46b is the first embodiment of the first embodiment. Different from 1 bracket 8. Further, the configuration of the fourth bracket is the same as that of the second bracket 22 of the first embodiment in that it has a mounting plate portion 47a, a fourth bearing portion 47b, and a mounting hole 47f, particularly as shown in FIG. However, the fourth bearing portion 47b is different from the second bracket 22 of the first embodiment in that the engagement edge portion 47d and the engagement portion 47e are provided. The slide cam 11 of this embodiment is provided with a second cam portion 12.

  As shown in FIG. 38, the operation control means 40 has a pointed head 41a, a guide long hole 41b, and an inclined part 41c, and a guide pin inserted through the guide long hole 41b. The guide plate 41 is slidably attached to the second base member 36 in the same direction as the rotation direction of the first hinge shaft 7 via 52, and particularly, as shown in FIG. 40 and FIG. For example, a compression spring formed between a circular insertion hole 36i provided in the fourth mounting portion 36c and a modified insertion hole 37a provided in the support portion 37. The guide shaft 42 attached by being slid and urged in one direction by applying the means 43 and the guide long hole 36h provided in the third attachment portion 36b of the second base member 36 are moved up and down. The one end side is made to face the stopper portion 46d provided at the edge of the third bearing portion 46b of the third bracket 46, and the other end portion faces the inclined portion 41c side of the guide plate 41. The control pin 44 and an engagement edge portion 47 d provided at the edge portion of the fourth bearing portion 47 b of the fourth bracket 47 are configured.

  As shown in FIG. 37, the guide pin 52 is composed of a flange portion 52a, a deformable portion 52b, and an attachment shaft portion 52c. The deformable portion 52b is inserted into the guide long hole 41b of the guide plate 41. However, the second base member 36 is attached to the attachment hole 36j provided in the substrate portion 36a. Further, as shown in FIG. 40, the guide shaft 42 has a flange portion 42a and a deformed small diameter portion 42d in addition to the notch portion 42b and the guide groove 42c, and the side on which the flange portion 42a is provided is the second base. The member 36 is inserted through the circular insertion hole 36i provided in the fourth attachment portion 36c, the deformation small diameter portion 42d is inserted through the deformation insertion hole 37a provided in the support portion 37, and between the flange portion 42a and the fourth attachment portion 36c. The elastic means 43 is elastically mounted, and a locking ring 45 having a deformation mounting hole 45a at the end of the support portion 37 on the side where the deformation small diameter portion 42d protrudes from the deformation insertion hole 37a is shown in FIG. It is attached by crimping. Further, as shown in FIG. 36, the control pin 44 is provided with a pair of flange portions 44a and 44b, which are inserted from the enlarged diameter portion 36k of the guide long hole 36h and engaged with the narrow diameter portion 36m. Therefore, it is devised so that it does not escape.

  Next, the operation of the biaxial hinge 35 of the second embodiment will be described.

  First, when the second housing 4 is closed with respect to the first housing 3, the guide shaft 42 of the operation control means 40 slides toward the flange portion 42 a by the elastic force of the elastic means 43. Further, the tip 41a of the guide plate 41 is guided by the guide groove 42c and moved to the guide shaft 42 side.

  Therefore, when the second housing 4 is opened with respect to the first housing 3 in this state, the engagement edge portion 47d provided on the fourth bearing portion 47b of the fourth bracket 47 of the tilt hinge portion 48 is formed. Since it hits the outer periphery of the guide shaft 42, the fourth housing 47 and thus the second housing 4 attached to the fourth bracket 47 cannot rotate. Accordingly, the suction hinge portion 49 operates and the second casing 4 is opened with respect to the first casing 3 together with the second base member 36.

  When the second casing 4 is opened to 90 degrees with respect to the first casing 3, the suction mechanism 50 of the suction hinge portion 49 operates at this position, and the second casing 4 is moved to the first casing 3. It opens automatically to the body 3 and stops at the opening angle of 90 degrees.

  When the second housing 4 is opened to 90 degrees with respect to the first housing 3, the guide plate 41 slidably attached to the rotating second base member 36 is attached to the mounting plate portion 46 a of the third bracket 46. Since the tip 41 a slides into the guide groove 42 c of the guide shaft 42, the guide shaft 42 slides against the elasticity of the elastic means 43. The control pin 44 slides in the guide long hole 36h by the inclined portion 41c and is lifted to the upper surface of the guide plate 41, and the control pin 44 is engaged with the stopper portion 46d provided on the third bearing portion 46b of the third bracket 46. At the same time, the rotation of the second base member 36 is locked and locked, and at the same time, the operation of the suction hinge portion 49 is stopped. At the opening angle of 90 degrees, the biaxial hinge 35 does not protrude outward from the connecting portion of the first housing 3 and the second housing 4.

  At the same time, the notch portion 42b of the guide shaft 42 that has been slid through the guide plate 41 comes to the position of the engagement edge portion 47d provided in the fourth bearing portion 47b of the fourth bracket 47. The second casing 4 can be opened by the tilt hinge portion 48 with the second hinge shaft 21 as a fulcrum.

  In this way, the second casing 4 can be opened from the opening angle of 90 degrees to the free stop with respect to the first casing 3, and when it is opened to 180 degrees, the mounting plate portion 47a of the fourth bracket 47 is opened. Abutting against the mounting plate portion 36a of the second base member 36, the opening operation of 180 degrees or more is prevented. At the opening angle of 180 degrees, the biaxial hinge 35 does not protrude outward from the connecting portion of the first housing 3 and the second housing 4, and the first housing 3 and the second housing 4. The connecting portion of is in a flat state. In the opening / closing range of 90 ° to 180 °, the tilt mechanism 51 of the tilt hinge portion 48 can stop the free stop at an arbitrary opening / closing angle.

  As described above, when the second casing 4 is closed with respect to the first casing 3 from the state where the second casing 4 is opened 180 degrees with respect to the first casing 3, Since the rotation of the base member 36 is still prevented, the tilt hinge portion 48 operates and the second housing 4 is closed to an angle of 90 degrees, so that the base member 36 is provided on the fourth bearing portion 47b of the fourth bracket 47. Since the engaging edge 47d contacts the guide shaft 42, the rotation of the fourth bracket 47 is prevented. Then, since the control pin 44 does not prevent the second base member 36 from rotating in the closing direction, the second base member 36 rotates with respect to the third bracket 46 together with the first hinge shaft 7 of the suction hinge portion 49. Thus, the closing operation of the second housing 4 is possible.

  In this way, the second housing 4 is closed with respect to the first housing 3 via the suction hinge portion 49, and the second base member 36 is brought into contact with the guide plate 41 as the second base member 36 rotates. Since it is released, the guide plate 41 slides back to the original position, and at the same time, the guide shaft 42 slides by the elastic force of the elastic means 43 to return to the original position. At the same time, as the guide plate 41 returns to the original position, the control pin 44 descends the inclined portion 41c and returns to the original position. When the second housing 4 is closed with respect to the first housing 3, the suction mechanism 50 of the suction hinge portion 49 operates immediately before that, and the convex portion 12 a of the second cam portion 12 of the slide cam 11 is moved to the first position. The suction torque that fits into the recess 10 a of the one cam portion 10 is generated, and the second housing 4 is automatically closed with respect to the first housing 3.

  When configured as in the second embodiment, the gap between the second housing 4 and the first housing 3 opened 180 degrees is larger than in the case shown in FIG. 15 of the first embodiment. As shown in FIG. 42, there is an advantage that it can be narrow.

  Next, in the first and second embodiments described above, the configurations of the suction hinge portion and the tilt hinge portion are not limited to those of the respective embodiments. First, for example, suction, the second cam portion may be an independent single cam portion other than the first bearing portion 8b and the third bearing portion 46b of the first bracket 8 and the third bracket 46. The elastic means can be changed to a spring washer other than a disc spring, a compression spring or the like. The number of disc springs can be increased or decreased as necessary. The presser washer can be a clamping nut.

  Next, the configuration of the tilt hinge portion is not limited to the number and configuration of the friction washers, and the disc spring as the elastic means can be replaced with a spring washer, a compression spring, or the like. Can be a tightening nut.

  As described above in detail, the present invention can be used as a hinge that connects the first housing and the second housing constituting the small electronic device so as to be openable and closable in the vertical direction. The hinge can be used for a small electronic device including a first housing and a second housing.

DESCRIPTION OF SYMBOLS 1, 35 2 axis | shaft hinge 2 Small electronic device 3 1st housing 3a Operation part 4 2nd housing 4a Display part 5 Base member 5c 1st attachment part 5e 2nd attachment part 5f, 32b Stopper piece 6, 49 Suction hinge part 7 1st hinge shaft 7a, 21a, 31b, 33b, 42a, 44a, 44b, 52a Flange part 8 1st bracket 8b 1st bearing part 8e Contact part 8d Engaging recessed part 20, 48 Tilt hinge part 22 2nd bracket 22d Drive Tooth part 30, 40 Operation control means 36h, 41b Guide long hole 31, 46d Stopper part 32 Driven gear 32c Driven tooth part 36 Second base member 36a Substrate part 36b Third attachment part 36c Fourth attachment part 37 Support part 41 Guide plate 41a Pointed portion 41c Inclined portion 42 Guide shaft 42b Notched portion 42c De groove 44 control pin 46 third bracket 46b third bearing portion 47 fourth bracket 47b fourth bearing portion 47d engagement edge

Claims (9)

A first housing having an operation portion on the upper surface and a second housing having a display portion on the lower surface are connected to each other so as to be openable and closable, and the first housing and the second housing are overlapped with each other. A small electronic device that creates a closed state that covers the upper surface of the operation unit and an open state that opens the first housing and the second housing in the vertical direction to expose the upper surface of the operation unit. An axial hinge,
The biaxial hinge is attached to the base member, the suction bracket portion attached to the first attachment portion of the base member and attached to the first housing, and the second attachment of the base member. A tilt hinge portion that is attached to a second bracket and that acts on a second bracket that is attached to the second housing, and is provided between the suction hinge portion and the tilt hinge portion, and the operation of the suction hinge portion and the tilt hinge portion A two-axis hinge of a small electronic device, characterized in that it is configured with an operation control means for determining the order.   2. The small electronic device according to claim 1, wherein the base member has a flat plate shape, and the first attachment portion and the second attachment portion are provided side by side on a flat portion of the base member. Axial hinge.   The operation control means first operates the suction hinge portion during the opening operation of the first casing and the second casing, then operates the tilt hinge portion, and first operates the tilt hinge portion during the closing operation. 2. The two-axis hinge of the small electronic device according to claim 1, wherein the suction hinge unit is operated next.   The operation control means includes a stopper portion having a flange portion at one end portion that is rotatably inserted into the base member, and a stopper piece and a driven tooth portion that are coaxially attached to the other end portion of the stopper portion. A first bearing of the first bracket for preventing the rotation of the second bracket by contacting the driven gear with the flange portion of the stopper portion and the rotation angle of the base member to prevent the rotation of the stopper portion. Provided in the second bracket that meshes with the abutment portion provided at the edge of the portion, the engagement recess that engages with the flange portion according to the rotation angle of the base member, and the driven tooth portion of the driven gear according to the rotation angle. The two-axis hinge of the small electronic device according to claim 1, wherein the two-axis hinge is configured with a drive tooth portion.   The biaxial hinge is attached to a base member, a third bracket attached to the first housing and attached to the third attachment portion of the base member, and a suction hinge portion acting on the third bracket, and a fourth attachment of the base member The tilt hinge part that is attached to the second housing and acts on the fourth bracket that is attached to the second housing, and is provided between the suction hinge part and the tilt hinge part, and the operation of the suction hinge part and the tilt hinge part A two-axis hinge of a small electronic device, characterized in that it is configured with an operation control means for determining the order.   6. The small electronic device according to claim 5, wherein the base member is provided with the third attachment portion and the fourth attachment portion, respectively, on the substrate portion and the other side plate bent from the substrate portion. Axial hinge.   The biaxial hinge for a small electronic device according to claim 6, wherein the side plates are provided separately.   The operation control means further includes a guide plate having a pointed head and slidably mounted on the second base member in the same direction as the rotation direction of the first hinge shaft, and a radial direction by shifting the position in the axial direction of the outer periphery. A guide shaft having a notch portion and a guide groove provided in the first mounting portion and slidably biased in one direction between the support portion provided in the fourth mounting portion and the third base member. It is attached to a guide slot provided in the attachment part so that it can move up and down, and its one end is opposed to a stopper provided at the edge of the third bearing part of the third bracket, and the other end is the guide plate. 6. The small electronic device according to claim 5, comprising a control pin facing the inclined portion side and an engaging edge provided at an edge of a fourth bearing portion of the fourth bracket. 2-axis hinge.   9. A small electronic device, wherein the biaxial hinge according to claim 1 is used as a connecting means between the first housing and the second housing.

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