JP5535039B2 - Biaxial hinge of electronic equipment - Google Patents

Description

  The present invention provides an electronic apparatus including a first housing having a relatively large keyboard portion and a second housing having a display portion, such as a notebook personal computer, and the second housing is used as the first housing. On the other hand, the present invention relates to a biaxial hinge that is suitable for use in mounting that can be opened and closed in the vertical direction and is rotatable in the horizontal direction.

  2. Description of the Related Art Conventionally, as a biaxial hinge of a small electronic device such as a mobile phone, the second housing is opened and closed with respect to the first housing as described in Patent Document 1 below, and an arbitrary opening and closing angle is provided. The opening / closing hinge that can be stopped and held at a predetermined angle, and the second housing with respect to the first housing in a direction perpendicular to the hinge shaft of the opening / closing hinge at a predetermined opening / closing angle of the second housing relative to the first housing It is known to have a rotating hinge that can be rotated by rotating.

JP 2007-177829 A

  In the biaxial hinge described in Patent Document 1, a pair of attachment members are attached to the first housing side at a predetermined interval, and a basic frame (base frame) is vertically attached to the attachment member via an opening / closing hinge. A support member that supports the second housing via a rotation hinge is attached to the basic frame so as to be rotatable in the horizontal direction. And since it is necessary to regulate the operation of the rotating hinge that rotates the second housing in the horizontal direction by the opening / closing angle in the vertical direction through the opening / closing hinge with respect to the first housing of the second housing, A link block is provided between the opening / closing hinge and the rotation hinge. Therefore, the length of the base frame (basic frame) on the side where the link block is provided is short. This configuration is good when the first housing and the second housing are small-sized electronic devices such as mobile phones, but the first housing and the second housing are medium-sized or large-sized notebook computers, etc. In such a case, there is a problem that the second casing is not supported stably by the base frame for the small electronic device. Therefore, it was considered to lengthen the entire length of the base frame and shorten the base frame on the side where the rotation hinge is provided. Since the lengths of the left and right sides of the hinges are increased and decreased, and the rigidity of the base frame is different, there is a risk that the second housing is twisted with the hinge shaft of the rotation hinge interposed therebetween.

  The purpose of the present application is to provide a biaxial hinge that can stably hold the second housing with respect to the first housing and that does not twist the second housing after many years of use. It is in.

  In order to solve the above problems, the present invention can open and close a second housing having a display portion in the vertical direction and horizontally in a first housing having a keyboard portion of an electronic device such as a notebook computer. An opening / closing hinge for connecting the base frame so as to be rotatable in the vertical direction between a pair of mounting members provided to be spaced apart and opposed to the first casing, and a central portion of the base frame. A rotation hinge for attaching a support member for supporting the second housing so as to be rotatable in a horizontal direction, and a link block for restricting the operation of the rotation hinge by an operation angle of the opening / closing hinge. The hinge shafts of the opening and closing hinges are both configured to be non-rotating, and the non-rotating hinge shaft and the link block are connected by a connecting shaft. To.

  In this case, according to the present invention, the opening / closing hinge can be constituted by a shaft hinge and a tilt hinge.

  In the present invention, the link block may be attached to a holding member suspended from the base frame so that the holding member can rotate, and the rotation of the link block is restricted by the connecting shaft. it can.

  The present invention is characterized in that the opening / closing hinge for attaching the link block is a tilt hinge, and the tilt hinge shaft of the tilt hinge is attached to the attachment member in a non-rotating manner.

By configuring the present invention as described above, the left and right lengths of the base frame with the rotation hinge shaft interposed therebetween can be made the same length. Since the difference does not occur and the length of the base frame can be obtained as much as necessary, the second housing can be stably held, and the second housing is twisted with respect to the first housing due to changes over time. Therefore, a good closed state and an open state can be maintained.

FIG. 6 is a front view of a notebook personal computer using a biaxial hinge according to the present invention in a state in which the second housing is opened 90 degrees with respect to the first housing. It is a side view of the state of FIG. It is a side view of the biaxial hinge in the state where the 2nd case was closed to the 1st case. It is a front view of the part of the biaxial hinge in the state of FIG. It is a disassembled perspective view in the state of FIG. 1 of the biaxial hinge which concerns on this invention. It is the disassembled perspective view which looked at the biaxial hinge in FIG. 5 from the rear part side. It is an expansion perspective view of the part of the hinge for rotation among the biaxial hinges concerning the present invention. It is explanatory drawing explaining operation | movement of the link block part of the biaxial hinge which concerns on this invention, (a) shows the state which opened the 2nd housing | casing to 90 degrees with respect to the 1st housing | casing, (b) Shows a state in which the second housing is opened to an intermediate angle not reaching 90 degrees with respect to the first housing. It is an expansion perspective view of a tilt hinge shaft. It is a perspective view of a friction washer. It is a perspective view of a 1st cam washer. It is a perspective view of a 2nd cam washer. It is an expansion perspective view of a link block. It is a longitudinal cross-sectional view of a connecting shaft.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In the following description, a notebook personal computer is taken as an example of an electronic device, but the present invention can be applied to other electronic devices such as a PDA, a mobile phone, a video camera, and a DVD monitor. Needless to say.

  In FIG. 1 to FIG. 4, what is indicated by an instruction symbol 1 is a notebook personal computer. The notebook personal computer 1 includes a first housing 2 having a keyboard portion 2a and a second housing having a display portion 3a. The body 3, the first housing 2 and the second housing 3 can be opened / closed in the vertical direction, and the second housing 3 is rotated in the horizontal direction with respect to the first housing 2 at a predetermined opening angle. It is composed of a biaxial hinge 4 that can be made.

As shown in FIGS. 1 and 5 to 6, the biaxial hinge 4 has a substantially angled cross section when attached to the upper side of the rear end of the first housing 2 at a predetermined interval. An opening / closing hinge A composed of a normal shaft hinge 7 and a tilt hinge 8 in which a base frame 9 having a substantially U-shaped cross section is rotatably mounted between a pair of mounting members 5 and 6, and a base frame 9, a rotation hinge B for attaching the support member 11 for attaching and supporting the second housing 3 to the attachment portion 11 b and supporting the second housing 3 to the attachment portion 11 b, and a lower portion of the base frame 9. The link block 13 is attached to the holding member 12 having a substantially angled cross section so that the holding member 12 can rotate, and the link block 13 is not connected between the link block 13 and the tilt hinge 8. It is composed of a connecting shaft 34 which connects to the rolling.

  In the drawing, the opening / closing hinge A connected to the link block 13 by the connecting shaft 34 is the tilt hinge 8, but of course the shaft hinge 7 may be used. That is, the hinge shaft 7 a of the shaft hinge 7 and the link block 13 may be connected by the connecting shaft 34.

As shown in FIGS. 1 to 6, the shaft hinge 7 includes a shaft support hole 9c provided in one side plate 9a of the base frame 9, a cylindrical spacer 9d, a shaft support hole 9c, and a cylindrical spacer. 9d and a circular mounting hole 5b provided in the side plate 5a of the mounting member 5, and a hinge shaft 7a with a flange portion 7b fixed by caulking the end 7c to the circular mounting hole 5b. The side plate 9a of the base frame 9 is connected to the side plate 5a of the mounting member 5 so as to be rotatable about the hinge shaft 7a. The configuration of the shaft hinge 7 is an example , and is not limited to that of the embodiment. It can replace with other well-known hinges. Furthermore, for example, the spacer 9d may be omitted. An instruction symbol 5 c is an attachment plate for attaching the attachment member 5 to the first housing 2. Furthermore, the reference symbol 9g of the base frame 9 is a rib portion, 9h is a mounting screw hole, and 9k is a bearing hole.

  Similarly, as shown in FIGS. 1 to 6, the tilt hinge 8 is not rotated by inserting and crimping its own deformation mounting portion 14 a into the deformation mounting hole 6 b provided in the side plate 6 a of the other mounting member 6. And a tilt mechanism 15 provided between the tilt hinge shaft 14 and the side plate 9 b of the base frame 9. The instruction symbol 6 c is a mounting plate for mounting the mounting member 6 to the first housing 2.

  As shown in FIG. 9, the tilt hinge shaft 14 is composed of a deformable mounting portion 14a, a large diameter portion 14b, and a deformed small diameter shaft portion 14c. The deformed small diameter shaft portion 14c is a circular shaft from the large diameter portion 14b side. 14d, a first deformation shaft portion 14e, a second deformation shaft portion 14f, and a third deformation shaft portion 14g.

  As shown in FIGS. 5 to 6 and 10, the tilt mechanism 15 has a circular insertion hole 16a in the axial direction of the central portion, a small hole for oil sump or a recess 16b is provided on the surface portion, and an outer edge portion. Includes a friction washer 16 having a locking piece 16c that engages with a locking groove 14h provided in the large-diameter portion 14b of the tilt hinge shaft 14, and a side plate 9b of the base frame 9 having a shaft support hole 9f and a locking hole 9e. In particular, as shown in FIG. 11, there is a locking piece 17b that engages with a locking hole 9e provided in the side plate 9b of the base frame 9 from the outer edge, and an arc-shaped first concave cam portion on the outer peripheral side thereof. A first cam washer 17 having an arc-shaped second concave cam portion 17d on the side of the circular insertion hole 17a, and a deformation insertion hole 18a in the axial direction of the central portion as shown in FIG. The first cam washer The first arcuate cam portion 18b and the arc-shaped first convex cam portion 18b provided on the opposite side of the first concave cam portion 17c provided on the outer peripheral side of the -17 and the second concave cam portion 17d provided on the circular insertion hole 17a side. A second cam washer 18 having two convex cam portions 18c, six disc springs 19 each having a circular insertion hole 19a in the axial direction of the central portion, and arranged in pairs, and a central shaft thereof A stopper plate 20 having a deformation insertion hole 20a provided in the direction and having a locking protrusion 20b for a stopper on the outer edge, a deformation insertion hole 21a provided in the axial direction of the central portion, and a pair of locking grooves 21b provided on the outer periphery. , 21b, and a presser washer 21.

  The tilt hinge shaft 14 passes the circular shaft portion 14d through a shaft support hole 9f provided in the side plate 9b of the base frame 9, and the circular insertion holes 16a and 17a of the friction washer 16 and the first cam washer 17 are inserted. Similarly, it is inserted through the circular shaft portion 14d. Next, the first deformation shaft portion 14 e of the tilt hinge shaft 14 is inserted into and engaged with the deformation insertion hole 18 a of the second cam washer 18, and the third deformation shaft portion 14 g is inserted into the circular insertion hole 19 a of each disc spring 19. I am letting.

  Further, the third deformation shaft portion 14g of the tilt hinge shaft 14 is inserted into and engaged with the deformation insertion hole 20a of the stopper plate 20 and the deformation insertion hole 21a of the presser washer 21, and the third protrusion protruding from the presser washer 21 is inserted. A predetermined friction torque is generated on both sides of the side plate 9b of the base frame 9 by the tilt mechanism 15 by caulking the end of the deformation shaft portion 14g.

  As shown in FIGS. 5 to 7, the rotation hinge 10 includes a cylindrical rotation hinge shaft 22 that is rotatably inserted into a bearing hole 9 k provided in the central portion of the base frame 9, and this rotation. The first deformation shaft portion 22a provided at the end portion of the hinge shaft 22 for insertion is inserted into the deformation attachment hole 11a provided at the center portion thereof, and then the end portion of the first deformation shaft portion 22a is caulked for the rotation. The support member 11 is fixed to the hinge shaft 22, and the friction click mechanism 23 is provided between the lower surface of the base frame 9 and the deformation flange portion 22 b of the rotation hinge shaft 22. The friction click mechanism 23 allows the rotation hinge shaft 22 to be rotatably inserted into an insertion hole 24a provided in the central axis direction of the friction click mechanism 23, and the tip ends of the mounting pieces 24b and 24b raised from both ends thereof to the base frame 9. The click base member 24 inserted and locked in the provided locking holes 9i, 9j, and the click base member while the rotation hinge shaft 22 is rotatably inserted into the circular insertion holes 25a, 26a provided in the central axis direction thereof. A pair of click plates 25, 26 in which locking pieces 25b, 25b, 26b, 26b provided in the locking holes 24c, 24c provided in the click base member 24 are inserted in the upper and lower sides of the click base member 24; Hinge shafts for rotation to the deformation insertion holes 27a, 28a, 29a, 30a provided in the center from the upper side to the lower side of the click plates 25, 26 Between the pair of spring plates 27, 28, 29, 30 provided by inserting and fixing the second deformed shaft portion 22 c of the flange 22 and the upper spring plate 28 and the base frame 9 in the axial direction of the center portion. It is composed of a friction plate 31 fixed to the base frame 9 after passing through the circular insertion hole 31a. The friction plate 31 has locking grooves 31b and 31b on both sides, and is provided with a locking piece 31c that is erected upward.

  Further, on the upper side of the base frame 9, a flat washer 32 in which a rotating hinge shaft 22 is rotatably inserted into a circular insertion hole 32a provided in the central portion axial direction, and an insertion hole 33a provided in the central portion axial direction. There is provided a spacer 33 through which a hinge shaft for rotation is rotatably inserted.

  The click plates 25, 26 are provided with recesses 25c, 25c, 26c, 26c at intervals of 180 °, and the spring plates 27, 28, 29, 30 are provided with recesses 25c, 25c, 26c, Protrusions 27b, 27b, 28b, 28b / 29b, 29b / 30b, 30b are provided to be fitted into 26c. The configuration of the rotation hinge 10 is not limited to that of the embodiment. In short, when the support member 11 is rotated together with the second housing 3 in the horizontal direction, the support member 11 is rotated with an appropriate friction torque, and preferably has a function of clicking and stopping at a rotation angle of 180 °. There is no.

  In particular, as shown in FIG. 13, the link block 13 includes a shaft portion 13a, an engaging protrusion 13b provided on one side of the shaft portion 13a, a circumferential groove 13c provided in the shaft portion 13a, The flange portion 13d is provided with a predetermined interval between the groove 13c and a D-cut portion 13e provided outside the flange portion 13d. The link block 13 is inserted into a circular insertion hole 12c provided in a side plate 12b of a holding member 12 composed of a mounting plate 12a having an angle cross section attached to the lower surface of the base frame 9 and a side plate 12b. Is held between the circumferential groove 13c and the flange portion 13d. An E-ring 13f is attached to the circumferential groove 13c. The E-ring 13f may be configured such that the link block 13 is omitted as a circular insertion hole of the side plate 12b by omitting the E-ring 13f. As shown in FIGS. 5 and 6, an indication symbol 12 d below the holding member 12 is an attachment screw for the holding member 12, and an indication symbol 12 e is an attachment hole.

A connecting shaft 34 is provided between the link block 13 and the tilt hinge 8. As shown in FIGS. 5, 6, and 14, the coupling shaft 34 engages the locking pieces 34 a and 34 a provided at one end with the locking grooves 21 b and 21 b of the presser washer 21 of the tilt hinge 8. At the same time, the engagement protrusion 13b of the link block 13 is inserted and engaged with the engagement grooves 34b and 34b provided at the other end. As described above, the link block 13 may be provided toward the shaft hinge 7.

  Next, the function and effect of the biaxial hinge 4 according to the present invention will be described.

  In the state shown in FIG. 3 in which the second housing 3 is closed with respect to the first housing 2, the base frame 9 and the support member 11 are connected to the hinge shaft 7a and the tilt hinge shaft 14 as shown in FIG. Rotating around the fulcrum, both have fallen forward. When the second housing 3 is pushed upward with respect to the first housing 2 from this closed state, the shaft hinge 7 and the tilt hinge 8 operate to open the second housing 3 with respect to the first housing 2. In addition, the second housing 3 can be stopped and held with respect to the first housing 2 at an arbitrary opening angle by the tilt mechanism 15. The opening angle in the vertical direction is restricted by the stopper plate 20 and is 180 ° at the maximum in the embodiment.

  That is, when the second housing 3 is opened and closed with respect to the first housing 2 in the vertical direction, the base frame 9 rotates together with the support member 11 via the opening / closing hinge A, and the side plate of the base frame 9 on the tilt hinge 8 side. A first cam fixed between the friction washer 16 in pressure contact with one side of 9b and one side of the side plate 9b of the base frame 9 and the other side of the side plate 9b on the tilt hinge 8 side of the base frame 9 Friction torque is generated between the second cam washer 18 and the second cam washer 18 in pressure contact with the washer 17, and the second housing 3 is opened and closed in a free stop.

  In the closed state shown in FIGS. 3 and 4 with respect to the first housing 2 of the second housing 3, the first concave cam portion 17 c and the second concave cam portion 17 d provided on the first cam washer 17. When the first convex cam portion 18b and the second convex cam portion 18c provided on the second cam washer 18 are lowered and locked, the second housing 3 is stabilized with respect to the first housing 2. It keeps the closed state.

  When the opening angle in the vertical direction of the second housing 3 reaches 90 °, the rotation hinge shaft 22 of the rotation hinge 10 rotates the D-cut of the link block 13 as shown in FIG. The second housing 3 can be rotated in the horizontal direction with respect to the first housing 2 because it is not regulated by the portion 13e. Until the opening angle of the second housing 3 reaches 90 °, the rotation hinge shaft 22 of the rotation hinge 10 is connected to the D-cut portion 13e of the link block 13 as shown in FIG. The rotation is restricted in contact with.

The rotation of the second housing 3 in the horizontal direction by the rotating hinge 10 opens the second housing 3 vertically by 90 ° with respect to the first housing 3, as shown in FIGS. From the above state, it can be in either direction of 180 °, but when rotated 180 °, the convex portions 27b, 27b, 28b, 28b, 29b, 29b, and the like of the spring plates 27, 28, 29, 30 of the friction click mechanism 23 When 30b and 30b are inserted into the recesses 25c, 25c, 26c, and 26c of the click plates 25 and 26, they rotate so as to be sucked, and click stop at 180 °. Note that the horizontal rotation angle of the second housing is restricted because there is a cord (not shown) that passes from the first housing 2 side to the second housing 3 side into the cylindrical hinge shaft 22. . It is preferable that the stopper is restricted when it is rotated 180 ° in either the left or right direction so that it does not rotate further .

  Further, when the rotating hinge 10 is operated, the deformed flange portion 22b of the rotating hinge shaft 22 is blocked by the D-cut portion 13e of the link block 13, and the vertical opening / closing operation by the tilt hinge 8 is restricted. .

  As described above, the connecting shaft 34 can be provided not on the tilt hinge 8 side but on the shaft hinge 7 side. Further, both the opening / closing hinges A can be tilt hinges instead of the shaft hinge 7.

  As described above in detail, the link block 13 is provided between the opening / closing hinge A and the rotation hinge 10, and the connecting shaft 34 is connected between the link block 13 and the rotation hinge shaft 22 of the rotation hinge 10. Since the length of the base frame 9 can be increased and the length of the base frame 9 can be made equal to the left and right with respect to the rotation hinge 10, the second casing 3 of the large notebook personal computer can be The base frame 9 can be prevented from being twisted while being stably supported with respect to the one housing 2.

  Since the present invention is configured as described above, the second housing of an electronic device or OA device such as a relatively large notebook personal computer can be opened and closed vertically with respect to the first housing, It is suitably used as a two-axis hinge that can rotate two housings in the horizontal direction with respect to the first housing.

DESCRIPTION OF SYMBOLS 1 Notebook-type personal computer 2 1st housing | casing 2a Keyboard part 3 2nd housing | casing 3a Display part 4 Biaxial hinge 5 Mounting member (right)
5a Side plate 5b Circular mounting hole 5c Mounting plate 6 Mounting member (left)
6a Side plate 6b Deformation mounting hole 6c Mounting plate 7 Shaft hinge 7a Hinge shaft 7b Flange
7c End 8 Tilt hinge 9 Base frame 9a Side plate (right)
9b Side plate (left)
9c Shaft support hole 9d Spacer 9e Locking hole 9f Shaft support hole 9g Rib 9h Mounting screw hole 9i, 9j Locking hole 9k Bearing hole 10 Rotating hinge 11 Support member 11a Deformation mounting hole 12 Holding member
12a Mounting plate 12b Side plate 12c Circular insertion hole 12d Mounting screw 12e Mounting hole 13 Link block 13a Shaft portion 13b Engaging projection 13c Circumferential groove 13d Flange portion 13e D cut portion 13f E ring 14 Tilt hinge shaft 14a Deformation mounting portion 14b Large diameter Portion 14c Deformation small diameter shaft portion 14d Circular shaft portion 14e First deformation shaft portion 14f Second deformation shaft portion 14g Third deformation shaft portion 14h Locking groove 15 Tilt mechanism 16 Friction washer 16a Circular insertion hole 16b Small hole or recess 16c Locking Piece 17 first cam washer 17a circular insertion hole 17b locking piece 17c first concave cam portion (outside)
17d Second concave cam part (inner side)
18 Second cam washer 18a Deformation insertion hole 18b First convex cam portion (outside)
18c Second convex cam part (inner side)
19 disc spring 19a circular insertion hole 20 stopper plate 20a deformation insertion hole 20b locking protrusion 21 presser washer 21a deformation insertion hole 21b locking groove 22 rotation hinge shaft 22a first deformation shaft portion 22b deformation flange portion 22c second deformation Shaft portion 23 Friction click mechanism 24 Click base member 24a Insertion hole 24b Mounting piece 24c Locking hole 25 Click plate 25a Circular insertion hole 25b Locking piece 25c Recessed part 26 Click plate 26a Circular insertion hole 26b Locking piece 26c Recessed part 27 Spring plate 27a Deformed insertion hole 27b Protruding portion 28 Spring plate 28a Deformed inserting hole 28b Convex portion 29 Spring plate 29a Deformed inserting hole 29b Convex portion 30 Spring plate 30a Deformed inserting hole 30b Convex portion 31 Friction Rate 31a circular through hole 31b engaging groove 31c engaging piece 32 flat washers 32a circular through hole 33 spacer 33a insertion hole 34 connecting shaft 34a engaging piece 34b engaging groove

Claims (4)

  A first housing having a keyboard portion of an electronic device such as a notebook personal computer is connected to the second housing having a display portion so as to be openable and closable in a vertical direction and rotatable in a horizontal direction. An opening / closing hinge for attaching the base frame so as to be rotatable in the vertical direction between a pair of attachment members provided to be spaced apart from the first housing, and a support member for supporting the second housing at the center of the base frame. It consists of a rotation hinge that is rotatably mounted in the horizontal direction, and a link block that regulates the operation of the rotation hinge according to the operation angle of the opening / closing hinge. Both the link block and the hinge shaft of the opening / closing hinge are not rotated. A two-axis hinge for an electronic device, wherein the non-rotating hinge shaft and the link block are connected by a connecting shaft.   2. The biaxial hinge for an electronic device according to claim 1, wherein the opening / closing hinge is composed of an axial hinge and a tilt hinge.   The link block is configured to be attached to a holding member suspended from the base frame so that the holding member can rotate, and the rotation of the link block is restricted by the connecting shaft. Item 2. A biaxial hinge of an electronic device according to item 1.   2. The electronic device according to claim 1, wherein the opening / closing hinge to which the link block is attached is a tilt hinge, and a tilt hinge shaft of the tilt hinge is non-rotatably attached to the attachment member. Axial hinge.

Images