CN101534331A - Biaxial hinge device and electronic device - Google Patents
Biaxial hinge device and electronic device Download PDFInfo
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- CN101534331A CN101534331A CN200910128174A CN200910128174A CN101534331A CN 101534331 A CN101534331 A CN 101534331A CN 200910128174 A CN200910128174 A CN 200910128174A CN 200910128174 A CN200910128174 A CN 200910128174A CN 101534331 A CN101534331 A CN 101534331A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
- G06F1/1681—Details related solely to hinges
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
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Abstract
The invention provides a biaxial hinge device having simple structure, low cost and reducing the number of parts on the basis of rotating according to a certain rotating sequence, and an electronic device having the biaxial hinge device; the biaxial hinge device connects a first frame provided with operation portions such as keyboards on the upper surface and a second frame provided with displaying portion on the lower surface in open and closing way; the device is characterized in that the biaxial hinge device comprises a hinge casing and a first shaft fixed to the end of the first frame and a second shaft fixed to the end of the second frame; the first and second shafts are separated and oppositely placed corresponding to a hinge casing and rotate along the same direction. A rotating control unit confirms rotating sequence of the shafts during opposite opening and closing for the frame bodies, and is fixed between the shafts. The rotating control unit utilizes the torque difference between a torque generated by winding one of the shafts and another torque generated by winding another shaft.
Description
Technical field
The present invention relates to a kind of biaxial hinge device and electronic equipment that first framework and second framework is opened and closed with certain rotation order.
Background technology
At PDA, notebook computer, ザ ウ Le ス (trade mark, Zaurus) and in the miniaturized electronics such as pocket telephone, known just like lower device: as to have second framework that first framework that upper surface is provided with operating portions such as keyboard and lower surface are provided with display parts such as LCD, and described first framework and second framework are coupled together in the mode that can open and close mutually by hinge means.Described electronic equipment constitutes by hinge means: via hinge means the upper end with respect to first framework, the upper end of second framework can be coupled together rotationally, thereby the lower surface that comprises display part of second framework is overlapped with the upper surface that comprises operating portions such as keyboard of first framework, and can open and make operating portion and display part to expose from coincidence status with respect to first framework second framework.
For this hinge means, motion has the biaxial hinge device (for example with reference to patent documentation 1,2) that uses two hinge axis that first framework and second framework are coupled together in the mode that can rotate.This biaxial hinge device comprises hinge housing, can be located at first hinge of hinge housing one end rotationally and can be located at second hinge of hinge housing the other end rotationally, via first hinge first framework and hinge housing can be coupled together rotationally, and via second hinge second framework and hinge housing can be coupled together rotationally, thereby first framework and second framework can be coupled together rotationally via biaxial hinge device.
Patent documentation 1: TOHKEMY 2005-83462 communique
Patent documentation 2: U.S. Patent Application Publication 2007/0234521A1 communique
In the biaxial hinge device that patent documentation 1 is put down in writing, with first hinge and second hinge first framework and second framework can be coupled together rotationally, yet first hinge and second hinge are made of fixed part, hinge axis, rotatable parts, movable part, helical spring, spheroid and engaging recessed part respectively, and the rotational action when second framework is opened and closed with respect to first framework is with certain rotation in sequence.That is, first hinge comprises: fixed part, its chimeric being fixed on first framework; Hinge axis, it can be supported in fixed part rotationally; Rotatable parts, it is installed on this hinge axis, and chimeric being fixed on the hinge housing; Movable part, it contacts with this rotatable parts face, and is run through by hinge axis, and engages with fixed part, only can moving axially along hinge axis; Helical spring, it is located between this movable part and the fixed part, and to movable part to the rotatable parts side application of force; Two spheroids, they be embedded in movable part with the opposed opposed faces of rotatable parts; And two kinds and every kind of each engaging recessed part of two, they engage with described two spheroids respectively, and be located at rotatable parts with the opposed opposed faces of movable part, when hinge housing rotated with respect to first framework, the spheroid of movable part moved towards the opposing party from a side in the engaging recessed part of rotatable parts.The structure of second hinge and first hinge are roughly the same, and when hinge housing rotated with respect to second framework, the spheroid of the movable part of second hinge moved towards the opposing party from a side in the engaging recessed part of the rotatable parts of second hinge.Therefore, the angle of inclination on the inclined plane of the engaging recessed part of the inclined plane of the engaging recessed part of first hinge that moves by the spheroid of regulating for first hinge and second hinge that moves for the spheroid of second hinge, can be set at: the rotational action when second framework is opened and closed with respect to first framework can be carried out in proper order with certain rotation.Yet,, therefore exist the problem that the more and complex structure of components number, cost increase because first hinge and second hinge be made of fixed part, hinge axis, rotatable parts, movable part, helical spring, spheroid and engaging recessed part respectively.
In addition, in the biaxial hinge device that patent documentation 2 is put down in writing, with first hinge and second hinge first framework and second framework can be coupled together rotationally, the rotational action when yet not record does not make second framework open and close with respect to first framework is with certain rotation detailed structure in sequence, for example, though proposed so that rotational action with certain rotation in sequence mode the scheme of the holding section that engages with first framework and second framework is set respectively, yet, except biaxial hinge device, also need the structure that the holding section is set respectively on first framework and second framework, and the device that is used to make this structure, and exist the problem that complex structure and cost increase.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, biaxial hinge device that components number is less and cost reduces and electronic equipment on the basis that can carry out rotational action with certain rotation in proper order, realized with this biaxial hinge device.
In order to reach above-mentioned purpose, biaxial hinge device of the present invention is provided with first framework of the such operating portion of keyboard and second framework that lower surface is provided with display part coupling together in the mode that can open and close with upper surface, it is characterized in that this biaxial hinge device comprises: hinge housing; And be fixed to first of the end of described first framework and be fixed to second of end of described second framework, described first and second are separated from each other and opposite disposed with respect to described hinge housing, and can rotate to same direction together, between described first and described second, be provided with the rotation control unit, described rotation control unit is used to determine: carry out described first and described second order of rotating when opening and closing at the state that described first framework and described second framework are overlapped from them, this rotation control unit utilization be first torque and the torque differences between second torque of described second generation around described first generation.
Biaxial hinge device of the present invention is characterised in that, described rotation control unit is made of cam mechanism that produces described first torque and described second torque and the limit rotation unit that limits described first and described second rotational angle.
According to the present invention, biaxial hinge device comprises: hinge housing; And be fixed to first of the end of first framework and be fixed to second of end of second framework, described first and described second is separated from each other and opposite disposed with respect to described hinge housing, and can rotate to same direction together, the rotation control unit is set between first and second, described rotation control unit is used to determine: the order of rotating of carrying out when opening and closing first and second at the state that first framework and second framework are overlapped from them, thereby first and second rotational action is carried out in proper order with certain rotation, and, rotate control unit by to first and second cam mechanism that acts on, and the limit rotation unit that limits first and second rotational angle constitutes, thereby realized simple in structure, components number reduces and cost reduces.
In biaxial hinge device of the present invention, preferably, described cam mechanism is by constituting with lower member: first cam body and second cam body, and they are located in the described hinge housing, and are mounted respectively on described first and described second in separated from one another and opposed mode; First cam follower and second cam follower, they are located in the described hinge housing equally, and respectively with described first cam body and the described second cam body sliding contact, thereby control described first cam body and the rotation separately of described second cam body; And Flexible element, it is flexibly set between described first cam follower and second cam follower.
In addition, in biaxial hinge device of the present invention, preferably, on the periphery of described first cam body of described cam mechanism and described second cam body, be respectively equipped with a plurality of recesses, be respectively equipped with protuberance on described first cam follower and described second cam follower, described protuberance is embedded in each described recess according to described first and described second rotational angle.
In addition, in biaxial hinge device of the present invention, preferably, described limit rotation unit be located between described first and the described hinge housing and described second and described hinge housing between.In addition, in biaxial hinge device of the present invention, preferably, described limit rotation unit is by constituting with the lower part: be located at the first limit rotation unit between described first and the described hinge housing and be located at the second limit rotation unit between described second and the described hinge housing.In addition, in biaxial hinge device of the present invention, preferably, the described first limit rotation unit is by constituting with the lower part: first limit rotation body and the 1B rotation restrictor, the described first limit rotation body is installed on described first and has 1A limit rotation protuberance, and described 1B rotation restrictor is located on the hinge housing and with described 1A limit rotation protuberance and is engaged; The described second limit rotation unit is by constituting with the lower part: second limit rotation body and the 2B rotation restrictor, the described second limit rotation body is installed on described second and has 2A limit rotation protuberance, and described 2B rotation restrictor is located on the hinge housing and with described 2A limit rotation protuberance and is engaged.In addition, in biaxial hinge device of the present invention, preferably, described rotation control unit comprises the sliding action limiting unit, is that fulcrum carries out in the rotational action process in described second framework with any one among described first and described second, described sliding action limiting unit limits the sliding action of first cam follower and second cam follower, is the rotational action that fulcrum carries out thereby limit described second framework with any another in described first and described second.
In addition, in biaxial hinge device of the present invention, preferably, be provided with the cable through hole respectively vertically on described first and described second, the cable in these cable through holes is electrically connected described first framework and described second framework.In addition, in biaxial hinge device of the present invention, preferably, the cover portion that this hinge housing and described cable are covered together can be installed on described hinge housing with loading and unloading.
In addition, in biaxial hinge device of the present invention, preferably, described rotation control unit constitutes: when the closure state that described first framework and described second framework are overlapped from them is opened, be that the fulcrum rotation is opened with described second framework with first at first by making described hinge housing, after the rotation of described hinge housing is limited by the described first limit rotation unit of described limit rotation unit, described second framework is rotated with described second and is opened, when turning to predetermined rotational angular, limit this rotation by means of the described second limit rotation unit.In addition, in biaxial hinge device of the present invention, preferably, described rotation control unit constitutes: when the open mode that makes described first framework and described second framework more than their use angle is closed, be the fulcrum closure with described second at first with second framework, after having limited this rotation by means of the described second limit rotation unit, described second framework is the fulcrum closure with described hinge housing with described first then.
In addition, electronic equipment of the present invention is characterised in that, this electronic equipment is provided with first framework of the such operating portion of keyboard and lower surface by upper surface and is provided with the second such framework of display part and constitutes, and uses a pair of above-mentioned biaxial hinge device of the present invention that described first framework and described second framework are coupled together in the mode that can open and close.According to the present invention, ground same as described above, described biaxial hinge device is characterised in that described biaxial hinge device comprises: hinge housing; And be fixed to first of the end of first framework and be fixed to second of end of second framework, described first and described second is separated from each other and opposite disposed with respect to described hinge housing, and can rotate to same direction together, between first and second, be provided with the rotation control unit, described rotation control unit is used to determine: first framework and second framework are being carried out when opening and closing first and second the order of rotating, this rotation control unit has utilized around first torque of described first generation and the torque differences between second torque of described second generation, therefore can carry out in proper order also having realized simple in structure on the basis of rotational action with certain rotation, components number reduces and cost reduces.
As above-mentioned illustrated because biaxial hinge device of the present invention is by constituting with the lower part: hinge housing; And be fixed to first of the end of first framework and be fixed to second of end of second framework, described first and described second is separated from each other and opposite disposed with respect to this hinge housing, and can rotate to same direction together, between first and second, be provided with the rotation control unit, described rotation control unit is used to determine: the order of rotating of carrying out when opening and closing first and second at the state that first framework and second framework are overlapped from them, rotate control unit by to first and second cam mechanism that acts on, and the limit rotation unit that limits described first and second rotational angle constitutes, therefore can carry out rotational action in proper order with certain rotation, and realize simple in structure, components number reduces and cost reduces.
Description of drawings
Fig. 1 is the exploded perspective view that an example of the electronic equipment with biaxial hinge device of the present invention is shown.
Fig. 2 be have biaxial hinge device of the present invention electronic equipment an example and the stereogram of closure state is shown.
Fig. 3 be have biaxial hinge device of the present invention electronic equipment an example and illustrate in the middle of the stereogram of open mode.
Fig. 4 be have biaxial hinge device of the present invention electronic equipment an example and the stereogram of first open mode is shown.
Fig. 5 be biaxial hinge device of the present invention the rotation control unit an example and the structure chart of closure state is shown.
Fig. 6 be biaxial hinge device of the present invention the rotation control unit an example and closure state is shown and middle open mode between the structure chart of state.
Fig. 7 be biaxial hinge device of the present invention the rotation control unit an example and illustrate in the middle of the structure chart of open mode.
Fig. 8 be biaxial hinge device of the present invention the rotation control unit an example and illustrate in the middle of the structure chart of state between open mode and first open mode.
Fig. 9 be biaxial hinge device of the present invention the rotation control unit an example and the structure chart of first open mode is shown.
Figure 10 be biaxial hinge device of the present invention the rotation control unit an example and the structure chart of second open mode is shown.
Figure 11 is an example of biaxial hinge device of the present invention and the stereogram that closure state is shown.
Figure 12 is an example of biaxial hinge device of the present invention and the stereogram that middle open mode is shown.
Figure 13 is the exploded perspective view that an example of biaxial hinge device of the present invention is shown.
Figure 14 is the cutaway view of an example that the limit rotation unit of biaxial hinge device of the present invention is shown, and Figure 14 (a) is the figure that closure state is shown, and Figure 14 (b) is the figure of open mode in the middle of illustrating, and Figure 14 (c) is the figure that second open mode is shown.
Embodiment
Below, be described in detail with reference to the example of accompanying drawing biaxial hinge device of the present invention and electronic equipment.
Fig. 1 to Fig. 4 is the figure that an example of the electronic equipment with biaxial hinge device of the present invention is shown.Fig. 5 to Figure 14 is the figure that an example of biaxial hinge device of the present invention is shown.To shown in Figure 10, biaxial hinge device of the present invention can couple together first framework 11 that upper surface is provided with the such operating portion of keypad portion 13 rotationally with second framework 12 that lower surface is provided with display part 14 as Fig. 1.In addition, first framework 11 and second framework 12 are represented by dotted lines in Fig. 2 to Figure 10.
As electronic equipment 10 of the present invention, especially to PDA (Personal Digital Assistant: palmtop PC) describe, yet be not limited thereto, for example also can be notebook computer, ザ ウ Le ス (trade mark, Zaurus) mobile terminal device such as grade, pocket telephone, calculator, pocket computer, portable game machine etc.Below situation about implementing in the PDA as an example of electronic equipment 10 is described, yet be not limited thereto.
As Fig. 1～shown in Figure 13, biaxial hinge device 1 of the present invention comprises: hinge housing 2; And be fixed on first framework, 11 ends first 3 and be fixed on second framework, 12 ends second 4, be separated from each other and opposite disposed with respect to hinge housing 2 for described first 3 and second 4, and can rotate to same direction together, between first 3 and second 4, be provided with and rotate control unit 5, described rotation control unit 5 is used to determine: carry out first 3 and second 4 orders of rotating when opening and closing at the state that first framework 11 and second framework 12 are overlapped from them, this rotation control unit 5 is by first 3 and second 4 cam mechanisms that act on 7 are constituted with the limit rotation unit 9 that limits first 3 and second 4 rotational angle.
Hinge housing 2 forms the cylindrical shell shape of essentially rectangular, and two relative limits at its both ends extend out and form respectively the first hinge support sheet 21 and the second hinge support sheet 22 respectively.On the described first hinge support sheet 21 and the second hinge support sheet 22, be respectively equipped with circular hinge support hole 23,24.The leading section of the first hinge support sheet 21 and the second hinge support sheet 22 forms semicircle.In addition, on hinge housing 2, be provided with the cover installing hole 28 that is used for installing knuckle guard 18 by for example Screw 29 grades.Knuckle guard 18 covers hinge housing 2 and cables described later 17, and this knuckle guard 18 has the through hole 18a that passes for Screw 29 etc.
When being in the closure state that first framework 11 and second framework 12 overlap, hinge housing 2 becomes the state that extends along the thickness direction of first framework 11 or second framework 12 at the leading section of first framework 11 and second framework 12.The length of the long side direction of hinge housing 2 forms the short size of thickness after ratio overlaps as first framework 11 and second framework 12.The hinge support hole 23 of running through the first hinge support sheet 21 of these hinge housing 2 belows for first 3, and the second 4 hinge support hole 24 of running through the second hinge support sheet 22 of these hinge housing 2 tops.
First 3 is quill shaft.This inside of first 3 is formed with cable through hole 3b, and the cable 17 that this cable through hole 3b power supply connects first framework 11 and second framework 12 runs through.Be provided with the diameter flange part 3a bigger than the diameter in hinge support hole 23 an end of first 3.First 3 axial length forms the size longer than the length between the first hinge support sheet 21.First 3 profile forms the substantially elliptical (declaring shape for a short time) that opposed two positions are cut abreast.In addition, the periphery the other end (being leading section) of first 3 also forms opposed two substantially ellipticals that the position is cut abreast.At this leading section of first 3 first support 35 is installed.
Periphery at first cam body 71 is provided with for example two first cam recesses 76, and these two first cam recesses 76 engage with first nose of cam 77 on being located at first cam follower 72.The first cam recess 76 (being called 1A cam recess 81 sometimes) of one of described first cam recess 76 is formed at the position that engages with first nose of cam 77 when rotational angle is 0 ° (comprising being roughly 0 °, down together).In addition, rotational angle among the present invention is meant the angle of second framework 12 with respect to first framework 11, the straight line angulation that for example to be the straight line that extends along the long side direction of first framework 11 extend with long side direction along second framework 12 is to be 0 ° angle when described straight line parallel.1A cam recess 81 be preferably formed for: be 0 ° with rotational angle and compare that rotational angle engages fully with first nose of cam 77 during for example for-10 ° (comprise being roughly-10 °, down with).By so forming, when rotational angle is 0 °, first nose of cam 77 and 1A cam recess 81 are not to engage fully but be in engaging midway, promptly become the state midway on the inclined plane (the first inclined plane 81a) that first nose of cam 77 is positioned at 1A cam recess 81.In addition, the first inclined plane 81a of 1A cam recess 81 is being that the mode that 19 ° (comprise being roughly 19 °, down with) rise with first nose of cam 77 begins to engage gently forms from rotational angle for example.
In addition, another first cam recess 76 (is called 1B cam recess 82 sometimes.) be formed at the position that when rotational angle is 76 ° (comprise being roughly 76 °, down with), engages with first nose of cam 77.In addition, the rotational angle of 1B cam recess 82 is not limited to 76 °, can at random set, for example the rotational angle that engages with first nose of cam 77 of 1B cam recess 82 can 76 ° of less than or is surpassed 76 °, can certainly be 90 ° or above 90 °.In addition, though be provided with two first cam recesses 76 in the periphery of first cam body 71, be not limited thereto, also can be provided with more than three.
In addition, be provided with for example three second cam recesses 78 in the periphery of second cam body 73, these three second cam recesses 78 engage with second nose of cam 79 on being located at second cam follower 74.First second cam recess 78 (being called 2A cam recess 83 sometimes) in the described second cam recess 78 forms and be positioned at the position that engages with second nose of cam 79 when rotational angle is 0 °.Second second cam recess 78 (being called 2B cam recess 84 sometimes) is formed at when opening the direction rotation, 2A cam recess 83 when rotating with respect to hinge housing 2 than second 4 leaves the position of for example 84 ° (comprise being roughly 84 °, down with) to rotation direction the place ahead.The 3rd second cam recess 78 (being called 2C cam recess 85 sometimes) is formed at when opening the direction rotation, 2A cam recess 83 when rotating with respect to hinge housing 2 than second 4 leaves the position of for example 104 ° (comprise roughly 104 °, down with) to rotation direction the place ahead.Preferably, 2C cam recess 85 be preferably formed for: for example (comprise and be roughly 180 ° in that second framework 12 is limited in 0 °～180 ° with respect to the rotational angle range of first framework 11, under the situation down together), engaging fully with second nose of cam 79 when rotation direction the place ahead turns to 114 ° (comprising being roughly 114 °, down together) from 104 ° with respect to 2A cam recess 83.In addition, the position of 2B cam recess 84 and 2C cam recess 85 is not particularly limited, and also can be located at other positions.In addition, be provided with three second cam recesses 78 in the periphery of second cam body 73, yet be not limited thereto, also can be provided with more than two or four.
The first inclined plane 83a (inclined planes of 2B cam recess 84 sides) of first inclined plane 81a of 1A cam recess 81 and 2A cam recess 83 forms: for example, to second framework, 12 application of forces so that its begin with respect to first framework 11 (with reference to Fig. 2 and Fig. 5) when opening direction and rotate from closure state, first torque that between first framework 11 (first 3) and hinge housing 2, produces, less than second torque that produces between second framework 12 (second 4) and the hinge housing 2, for example, make the angle of inclination of the first inclined plane 81a of 1A cam recess 81 form more gently than the angle of inclination of the first inclined plane 83a of 2A cam recess 83.Thus, serve as that axle makes second framework 12 rotate to opening direction with respect to first framework 11 with hinge housing 2 with first 3.At rotational angle is 76 °, and when promptly first nose of cam 77 engaged with 1B cam recess 82, this rotation stopped.This state is intermediateness (with reference to Fig. 3 and Fig. 7).
The first inclined plane 82a (away from the inclined plane of 1A cam recess 81 sides) and the first inclined plane 83a of 2A cam recess 83 of 1B cam recess 82 form: for example second framework, 12 application of forces are made it begin with respect to first framework 11 further when opening direction and rotate from middle state, second torque of first torque ratio is big.And, the first inclined plane 82a of 1B cam recess 82 forms with the first inclined plane 84a (away from the inclined plane of 2A cam recess 83 sides) of 2B cam recess 84: for example second framework, 12 application of forces are made its since first nose of cam 77 and 1B cam recess 82 engages and second nose of cam 79 engages with 2B cam recess 84 state (being called first open mode sometimes) with respect to first framework 11 further when opening direction and rotate, second torque of first torque ratio is big.Thus, make that second framework 12 serves as that axle further rotates to opening direction with respect to first framework 11 with second 4.In described rotation, be 160 ° at rotational angle and (comprise roughly 160 °, down with) time second nose of cam 79 engage with 2B cam recess 84 also and temporarily stop operating, thereby become first open mode (with reference to Fig. 4 and Fig. 9), and then, turn to rotational angle and be 180 ° and (comprise roughly 180 °, down together), promptly stop behind second nose of cam 79 and 2C cam recess 85 engages and first nose of cam 77 engages with 1B cam recess 82 the state (being called second open mode sometimes), form second open mode (with reference to Figure 10).
In addition, the second inclined plane 85b (inclined planes of 2B cam recess 84 sides) of the second inclined plane 82b of 1B cam recess 82 (inclined planes of 1A cam recess 81 sides) and 2C cam recess 85 forms: for example since second framework 12 with respect to first framework 11 with rotational angle be 180 ° of second open modes of opening to second framework 12 effects make second framework 12 with respect to first framework 11 when the power that closing direction rotates, first torque is rotated greater than second, for example make the angle of inclination of the second inclined plane 85b of 2C cam recess 85 form more gently than the angle of inclination of the second inclined plane 82b of 1B cam recess 82.And, the second inclined plane 84b (inclined planes of 2A cam recess 83 sides) of second inclined plane 82b of 1B cam recess 82 and 2B cam recess 84 forms: since first open mode to second framework 12 effect make its with respect to first framework 11 further when the power that closing direction rotates, make first torque greater than second torque, the second inclined plane 84b that for example makes 2B cam recess 84 forms more gently than the angle of inclination of the second inclined plane 82b of 1B cam recess 82.Thus, second framework 12 serves as that axle rotates to closing direction with respect to first framework 11 with second 4.In described rotation, be 160 ° at rotational angle and (comprise roughly 160 °, down with) time second nose of cam 79 engage with 2B cam recess 84 also and temporarily stop operating, and then, turning to rotational angle is 76 °, promptly stops after second nose of cam 79 and the intermediateness that 2A cam recess 83 engages.
In addition, the second inclined plane 82b of 1B cam recess 82 and the second inclined plane 83b (away from the inclined plane of 2B cam recess 84 sides) of 2A cam recess 83 form: from middle state begin to second framework 12 effect make second framework 12 with respect to first framework 11 when the power that closing direction rotates, make first torque greater than second torque.Under this situation, it is the trend that axle rotates to closing direction with respect to first framework 11 that second framework 12 has with second 4, yet to be used to limit second framework serve as the limit rotation unit 9 that axle rotates with second 4 like this owing to be provided with, and makes that thus second framework 12 serves as spool to rotate to closing direction with respect to first framework 11 with hinge housing 2 with first 3.This rotation is 0 ° at rotational angle, promptly stops under the closure state that first framework 11 and second framework 12 are adjacent to mutually.In addition, from second framework 12 with respect to open and close in the middle of the closed action process of first framework 11 angle to second framework 12 effects make second framework 12 with respect to first framework 11 when the power that closing direction rotates, also can need not limit rotation unit 9 under this situation so that first torque forms second inclined plane 82b of 1B cam recess 82 and the second inclined plane 83b of 2A cam recess 83 less than the mode of second torque.
The first limit rotation unit 91 is for example by constituting with the lower part: be located at the first limit rotation body 93 on first 3 periphery between first support 35 and the hinge housing 2; Be located at the lip-deep 1A limit rotation protuberance 94 of hinge housing 2 sides of this first limit rotation body 93; And be located on the hinge housing 2 and the 1B limit rotation protuberance 95 that engages with this 1A limit rotation protuberance 94.The restriction of the rotational angle of this first limit rotation unit 91, for example be with hinge housing 2 with respect to the limit rotation of first support 35 the state that engages with 1A cam recess 81 from first nose of cam 77 to state that 1B cam recess 82 engages till 76 ° slewing area in.
The first limit rotation body 93 forms roughly ring-type.The interior shape of the first limit rotation body 93 forms the substantially elliptical of installing under it is embedded in first 3 the state of periphery of leading section, thereby the first limit rotation body 93 rotates with first 3 (first support 35).On the surface of hinge housing 2 sides of this first limit rotation body 93, opposed two positions on all ends are respectively equipped with the 1A limit rotation protuberance 94 that extends vertically.1A limit rotation protuberance 94 forms roughly circular arc along the first limit rotation body 93.With the surface of these first limit rotation body, 93 opposed hinge housings 2, promptly near opposed two positions the hinge support hole 23 of the outer surface of the first hinge support sheet 21, be respectively equipped with the 1B limit rotation protuberance 95 that extends vertically.1B limit rotation protuberance 95 and 1A limit rotation protuberance 94 are located on the roughly same circumference.
1A limit rotation protuberance 94 and 1B limit rotation protuberance 95 form: when first nose of cam 77 engages with 1A cam recess 81,1B limit rotation protuberance 95 is positioned near the end (being called first end 94a sometimes) of 1A limit rotation protuberance 94 (with reference to Figure 11 and Figure 14 a), and, the state that engages with 1A cam recess 81 since first nose of cam 77 make hinge housing 2 with respect to first support 35 (first 3) when opening direction and rotate, after 1B limit rotation protuberance 95 leaves the first end 94a of 1A limit rotation protuberance 94 and rotates 76 °, first nose of cam 77 engages with 1B cam recess 82 and the other end (being called the second end 94b sometimes) butt of 1B limit rotation protuberance 95 and 1A limit rotation protuberance 94, thereby this rotation is limited (with reference to Figure 12 and Figure 14 (b), Figure 14 (c)).Thus, the first limit rotation unit 91 hinge housing 2 is limited in respect to the slewing area of first support 35 state that engages with 1A cam recess 81 from first nose of cam 77 to state that 1B cam recess 82 engages till 76 ° slewing area in.
The second limit rotation unit 92 is for example by constituting with the lower part: be located at the second limit rotation body 96 on second 4 periphery between second support 45 and the hinge housing 2; Be located at the lip-deep 2A limit rotation protuberance 97 of hinge housing 2 sides of this second limit rotation body 96; And be located on the hinge housing 2 and the 2B limit rotation protuberance 98 that engages with this 2A limit rotation protuberance 97.The restriction of the rotational angle of this second limit rotation unit 92, for example be with hinge housing 2 with respect to the limit rotation of second support 45 the state that engages with 2A cam recess 83 from second nose of cam 79 to state that 2C cam recess 85 engages till 104 ° slewing area in.
The second limit rotation body 96 forms general toroidal.The interior shape of the second limit rotation body 96 forms the substantially elliptical of installing under it is embedded in second 4 the state of periphery of leading section, thereby the second limit rotation body 96 rotates with second 4 (second support 45).On the surface of hinge housing 2 sides of this second limit rotation body 96, opposed two positions on all ends are respectively equipped with the 2A limit rotation protuberance 97 that extends vertically.2A limit rotation protuberance 97 forms roughly circular arc along the second limit rotation body 96.With the surface of these second limit rotation body, 96 opposed hinge housings 2, promptly near opposed two positions the hinge support hole 24 of the outer surface of the second hinge support sheet 22, be respectively equipped with the 2B limit rotation protuberance 98 that extends vertically.2B limit rotation protuberance 98 and 2A limit rotation protuberance 97 are located on the roughly same circumference.
2B limit rotation protuberance 98 and 2A limit rotation protuberance 97 form: when second nose of cam 79 engages with 2A cam recess 83, one end (the being called first end 98a sometimes) butt of 2A limit rotation protuberance 97 and 2B limit rotation protuberance 98, thus second support 45 (second 4) is limited (with reference to Figure 11, Figure 12 and Figure 14 (a), Figure 14 (b)) with respect to hinge housing 2 to the rotation of closing direction.In addition, 2B limit rotation protuberance 98 and 2A limit rotation protuberance 97 form: the state that engages with 2A cam recess 83 since second nose of cam 79 make second support 45 (second 4) with respect to hinge housing 2 when opening direction and rotate, 2A limit rotation protuberance 97 leaves the first end 98a of 2B limit rotation protuberance 98, after rotating 104 °, second nose of cam 79 engages with 2C cam recess 85 and the other end (being called the second end 98b sometimes) butt of 2A limit rotation protuberance 97 and 2B limit rotation protuberance 98, thereby this rotation is limited (with reference to Figure 14 (c)).Thus, the second limit rotation unit 92 second support 45 is limited in respect to the slewing area of hinge housing 2 state that engages with 2A cam recess 83 from second nose of cam 79 to state that 2C cam recess 85 engages till 104 ° slewing area in.Therefore, limit rotation unit 9 is limited in 76 ° with hinge housing 2 with respect to the slewing area of first support 35, and second support 45 (second 4) is limited in 104 ° with respect to the slewing area of hinge housing 2, thereby the slewing area of biaxial hinge device 1 integral body has been limited in 180 °.That is, second framework 12 being limited in rotational angle for example with respect to the slewing area of first framework 11 is in 0 °～180 ° the scope.
In addition, preferably, limit rotation unit 5 has sliding action limiting unit 8 (illustrating with cue mark among Fig. 6～Fig. 8), this sliding action limiting unit 8 any in first 3 and second 4 is in the rotational action of fulcrum, and restriction is the rotational action of fulcrum with any another in first 3 and second 4.Sliding action limiting unit 8 also can use the end 72b of first cam follower 72 for example and the end 74b of second cam follower 74 to constitute.Promptly, the length of first cam follower 72 and second cam follower 74 is set to: first nose of cam 77 engage with the first cam recess 76 and second nose of cam 79 when the second cam recess 78 breaks away from, perhaps break away from and second nose of cam 79 when engaging the mutual butt of each end face (with reference to Fig. 6 and Fig. 8) of both ends 72b, the 74b of first cam follower 72 and second cam follower 74 with the second cam recess 78 from the first cam recess 76 at first nose of cam 77.Thus, engage with the first cam recess 76 and second nose of cam 79 breaks away from from the second cam recess 78 at first nose of cam 77, and to make second support 45 serve as axle when rotating with respect to hinge housing 2 with second 4, and can avoid making first nose of cam 77 to break away from and make first support 35 from the first cam recess 76 serve as that axle is with respect to hinge housing 2 rotations with first 3.And, engage with the second cam recess 78 from 76 disengagings of the first cam recess and second nose of cam 79 at first nose of cam 77, and to make first support 35 serve as axle when rotating with respect to hinge housing 2 with first 3, and can avoid making second nose of cam 79 to break away from and make second support 45 from the second cam recess 78 serve as that axle is with respect to hinge housing 2 rotations with second 4.
Then, the effect to biaxial hinge device 1 of the present invention and electronic equipment 10 describes.
In addition, when being in closure state, though first nose of cam 77 engages with 1A cam recess 81, yet this engaging is not first nose of cam 77 and 1A cam recess 81 chimeric states fully (comprising roughly complete), but the leading section of first nose of cam 77 is positioned at the state (with reference to Fig. 5) of half-way of the first inclined plane 81a of 1A cam recess 81.Thus, owing to compress spring 75a so that first framework 11 applies elastic force with the mode that second framework 12 overlaps, therefore first framework 11 and second framework 12 can not rocked, and are kept closed again.
Under the situation of using this electronic equipment 10, for example, pushing with hand under the state of first framework 11,12 effects make it to opening the power that direction is rotated to second framework.At this moment, because first torque is little less than second torque, therefore second framework 12 is that fulcrum rotates to opening direction with respect to first framework 11 with hinge housing 2 with first 3.Promptly, first cam follower 72 overcome compression spring 75a elastic force and in hinge housing 2 to second cam follower, 74 side shiftings, first nose of cam 77 of first cam follower 72 breaks away from from 1A cam recess 81 simultaneously, and (with reference to Fig. 6) slides on the side face of first cam body 71.At this moment, second nose of cam 79 engages with 2A cam recess 83 and first nose of cam 77 breaks away from from 1A cam recess 81, and mutual opposed both ends 72b, the 74b of first cam follower 72 and second cam follower 74 connect, thereby second nose of cam 79 can not broken away from from 2A cam recess 83, therefore limited second 4 rotation, thus can only carry out reliably second framework 12 with first 3 serve as axle with hinge housing 2 with respect to first framework 11 to the rotational action of opening the direction rotation.
And then, when second framework 12 is 76 ° with respect to the rotational angle of first framework 11, first cam follower 72 moves to the direction of leaving from second cam follower, 74 sides under the elastic force effect of compression spring 75a, first nose of cam 77 enters in the 1B cam recess 82 and with it and engages, second framework 12 serves as that an opening action with respect to first framework 11 stops with first 3, thus open mode (with reference to Fig. 3 and Fig. 7) in the middle of becoming.At this moment,, therefore can produce touching (click) sense, can easily hold the situation of open mode in the middle of whether arriving because first nose of cam 77 enters into 1B cam recess 82.In addition, after arriving middle open mode, the 1B limit rotation protuberance 95 of the first limit rotation unit 91 and the second end 94b butt of 1A limit rotation protuberance 94, limited hinge housing 2 with respect to first support 35 (first 3) to the rotation of opening direction (with reference to Figure 14 (b)).
Make second framework 12 further after the power of opening the direction rotation from middle open mode effect, because hinge housing 2 is limited to the rotation of opening direction with respect to first support 35 (first 3), current second framework 12 is that fulcrum rotates to opening direction with second 4.Promptly, second cam follower 74 overcomes the elastic force of compression spring 75a, to first cam follower, 72 side shiftings, and second nose of cam 79 of second cam follower 74 breaks away from from 2A cam recess 83 in hinge housing 2, and (with reference to Fig. 8) slides on the side face of second cam body 73.
And, after rotational angle reaches 160 °, second cam follower 74 moves to the direction of leaving first cam follower, 72 sides under the elastic force effect of compression spring 75a, and then second nose of cam 79 enter in the 2B cam recess 84 and and engage with it, second framework 12 serves as that a rotation with respect to first framework 11 stops with second 4, thereby forms first open mode (with reference to Fig. 4 and Fig. 9).At this moment, because second nose of cam 79 enters into 2B cam recess 84, therefore can produce the striking sense, thereby can easily hold the situation that whether arrives first open mode.
Thus, expose to the state that can operate owing to will be located at the operating portions such as keypad portion 13 of first framework, 11 upper surfaces, and display part 14 is exposed to visual state, therefore can be in laterally than using electronic equipment 10 under the long status at display part 14.At this moment, first nose of cam 77 engages with 1B cam recess 82 and second nose of cam 79 engages with 2B cam recess 84, and this fastening state kept by the elastic force of compression spring 75a, therefore display part 14 can be remained on first open mode.
And then, make second framework 12 after the power of opening the direction rotation from the first open mode effect, making second framework 12 is that fulcrum further rotates to opening direction with second 4, after rotational angle reaches 180 °, the 2A limit rotation protuberance 97 of the second limit rotation unit 92 and the second end 98b butt of 2B limit rotation protuberance 98 make this rotation stop (with reference to Figure 14 (c)).At this moment, elastic force that first cam follower 72 and second cam follower 74 are compressed spring 75a respectively by the state that is pressed on first cam body 71 and second cam body 73 under, because second nose of cam 79 engages with 2C cam recess 85 and first nose of cam 77 engages with 1B cam recess 82, therefore first framework 11 and second framework 12 are maintained at second open mode.Under this second open mode, because also will be located at the operating portions such as keypad portion 13 of first framework, 11 upper surfaces exposes to the state that can operate, and display part 14 is exposed to visual state, therefore also can be in laterally than using electronic equipment 10 under the long status at display part 14.
In addition, under second open mode,, (comprise roughly complete fully yet this engaging is not second nose of cam 79 and 2C cam recess 85 though second nose of cam 79 engages with 2C cam recess 85.) chimeric state, but the leading section of second nose of cam 79 is positioned at the state (with reference to Figure 10) of half-way of the second inclined plane 85a of 2C cam recess 85.Thus, since the compression spring 75a so that second framework 12 is opened, promptly, make the mode of the other end butt of 2A limit rotation protuberance 97 and 2B limit rotation protuberance 98 apply elastic force, therefore first framework 11 and second framework 12 can not rocked, thereby remain on second open mode.
Like this, when the electronic equipment 10 of closure state is opened, at first, is that fulcrum rotate with hinge housing 2 with first 3 with torque official post second framework 12 of second torque by first torque, after this rotates beginning, mutual opposed two mutual butts of end 72b, 74b of first cam follower 72 and second cam follower 74 are to limit second 4 rotation, because second framework 12 does not serve as that axle rotates with second 4, therefore arrive till the middle open mode, only carrying out with first 3 is the rotation of axle.Then, from middle open mode, by the 1B limit rotation protuberance 95 of the first limit rotation unit 91 and the butt of 1A limit rotation protuberance 94, thereby with first 3 is that the rotation of axle is limited, and is the rotation of fulcrum only carrying out with second 4 till first open mode and second open mode.Thereby, in 0～76 ° rotational angle range, only carry out with first 3 be the rotation of fulcrum, in 76～180 ° rotational angle range, only carry out with second 4 be the rotation of fulcrum, therefore can carry out opening action with the rotational action of predefined procedure always.
Make second framework 12 return to the home position when being closure state, for example pushing with hand under the state of first framework 11, the power that 12 effects make it rotate to closing direction to second framework from second open mode.So, common generation torque on first 3 and second 4, yet because required second torque required first torque when first nose of cam 77 is broken away from from 1B cam recess 82 when second nose of cam 79 is broken away from from 2C cam recess 85, i.e. first torque ratio, second torque is big, and therefore second framework 12 is that fulcrum rotates to closing direction with respect to first framework 11 with second 4.When rotational angle reaches 160 °, second nose of cam 79 enters into 2B cam recess 84 and engages with 2B cam recess 84 from 2C cam recess 85 and makes this rotation temporarily stop, yet owing to also have above-mentioned torque differences this moment, it serves as that axle rotates to closing direction with respect to first framework 11 that second framework 12 is continued with second 4.So, because both ends 72b, the 74b butt of first cam follower 72 and second cam follower 74, so described these slips are limited, consequently, first nose of cam 77 can not break away from (with reference to Fig. 8) from 1A cam recess 81, therefore 12 of second frameworks are that fulcrum rotates to closing direction with respect to first framework 11 with second 4.
And when rotational angle reached 76 °, second nose of cam 79 entered into 2A cam recess 83 and engages with it, thereby became intermediate closed state (with reference to Fig. 3 and Fig. 7).At this moment, produce the touching sense.In addition, the first end 98a butt of 2A limit rotation protuberance 97 and 2B limit rotation protuberance 98 serves as that axle is with respect to the rotation (with reference to Figure 14 (b)) of hinge housing 2 to closing direction thereby limited second support 45 (second framework 12) with second 4.Thus, make second framework 12 further when the power that closing direction rotates from middle closure state effect, second support 45 (second framework 12) is that fulcrum is limited with respect to the rotation of hinge housing 2 to closing direction with second 4, and second framework 12 is that fulcrum rotates to closing direction with respect to first framework 11 with hinge housing 2 with first 3 only.And, when rotational angle is 0 °, form that first nose of cam 77 engages with 1A cam recess 81 and closure state that second framework 12 and first framework 11 are adjacent to mutually and overlap, thereby this rotation stops (with reference to Fig. 2 and Fig. 5).
Like this, with 10 closures of the electronic equipment under the open mode time, at first, torque differences by first torque and second torque is that fulcrum rotates with second 4, after this rotated beginning, the both ends 74b of the both ends 72b of second cam follower 72 and second cam follower 74 connected limiting this slip, thereby can be not the fulcrum rotation with first 3, therefore arrive till the intermediate closed state, carrying out with second 4 is the rotation of fulcrum.Then, from middle closure state, by 2A limit rotation protuberance 97 and 2B limit rotation protuberance 98 butts, only carry out with first 3 be the rotation of fulcrum, until reaching closure state.Therefore, in 180～76 ° rotational angle range, only carry out with second 4 be the rotation of fulcrum, in 76～0 ° rotational angle range, only carry out with first 3 be the rotation of fulcrum, therefore can carry out closed action with the rotational action of predefined procedure always.
Thereby, biaxial hinge device 1 of the present invention and electronic equipment 10 carry out rotational action with following predefined procedure: when the electronic equipment under the closure state 10 is opened, be that fulcrum makes second framework 12 open mode in the middle of hinge housing 2 turns to respect to first framework 11 only with first 3, beginning to make second framework 12 from this centre open mode is that fulcrum turns to first open mode or second open mode with respect to first framework 11 with second 4 only, and, with 10 closures of the electronic equipment under the described open mode time, making second framework 12 at first is that fulcrum turns to the intermediate closed state with respect to first framework 11 with second 4 only, and then only to begin with first 3 from this intermediate closed state be that fulcrum makes second framework 12 rotate with hinge housing 2 with respect to first framework 11.As above-mentioned detailed description, on the basis of having realized the simple structure that components number minimizing, cost reduce, the opening and closing operations of first framework 11 and second framework 12 is carried out in proper order with predetermined switching, therefore also can realize the raising of operability.In addition, by changing the different compression spring 75a of elastic force into, can be used to be kept closed, the confining force of first open mode and second open mode adjusts.
In addition, in embodiments of the present invention, when middle open mode is further opened second framework 12 with respect to first framework 11, rotate to opening direction with respect to first 3 by the second limit rotation unit, 92 restriction hinge housings 2, and then, make second framework 12 with respect to first framework 11 when middle dwell angle degree begins closure, rotate to closing direction by the first limit rotation unit, 91 restriction hinge housings 2, yet be not limited thereto, for example also can be only by utilizing the torque differences of first torque and second torque, and limit hinge housing 2 by sliding action limiting unit 8 and rotate to opening direction with respect to first 3.
In addition, in embodiments of the present invention, carry out rotational action in proper order with following certain rotation: when the electronic equipment under the closure state 10 is opened, be that fulcrum makes second framework 12 open mode in the middle of hinge housing 2 turns to respect to first framework 11 only with first 3, beginning to make second framework 12 from this centre open mode is that fulcrum turns to first open mode or second open mode with respect to first framework 11 with second 4 only, and, with 10 closures of the electronic equipment under the open mode time, making second framework 12 is that fulcrum turns to the intermediate closed state with respect to first framework 11 with second 4 only, beginning from this intermediate closed state is that fulcrum makes second framework 12 rotate with hinge housing 2 with respect to first framework 11 with first 3 only, yet be not limited to this rotation order, also can open and close in proper order with other rotations.For example, also can constitute: when the electronic equipment under the closure state 10 is opened, making second framework 12 at first is open mode in the middle of fulcrum turns to respect to first framework 11 with second 4 only, beginning from this centre open mode is that fulcrum makes second framework 12 turn to open mode with hinge housing 2 with respect to first framework 11 with first 3 only, and, with 10 closures of the electronic equipment under the open mode time, be that fulcrum makes second framework 12 turn to the intermediate closed state with hinge housing 2 with respect to first framework 11 with first 3 only, beginning to make second framework 12 from this intermediate closed state is that fulcrum rotates with respect to first framework 11 with second 4 only.
As top detailed description the in detail, the present invention includes: hinge housing; And be fixed to first of the end of first framework and be fixed to second of end of second framework, described first and second are separated from each other and opposite disposed with respect to hinge housing, and be configured to rotate to same direction together, between first and second, be provided with the rotation control unit, described rotation control unit is used to determine: the order of rotating of described first framework and second framework being carried out when opening and closing first and second at the state that overlaps from first framework and second framework, this rotation control unit is made of the limit rotation unit to first and second cam mechanism that acts on and restriction described first and second rotational angle, therefore can carry out on the basis of rotational action in proper order with certain rotation, also realized simple in structure, and components number reduces and cost reduces, so be best suited in the electronic equipment, particularly PDA, notebook computer etc.
Claims (13)
1. biaxial hinge device, upper surface is provided with first framework of the such operating portion of keyboard to this biaxial hinge device and second framework that lower surface is provided with display part couples together in the mode that can open and close, it is characterized in that,
This biaxial hinge device comprises: hinge housing; And be fixed to first of the end of described first framework and be fixed to second of end of described second framework, described first and second are separated from each other and opposite disposed with respect to described hinge housing, and can be together to same direction rotation,
Be provided with the rotation control unit between described first and described second, described rotation control unit is used to determine: when described first framework is carried out relative the switching with described second framework, and described first and described second rotation order,
This rotation control unit utilization be first torque and the torque differences between second torque of described second generation around described first generation.
2. biaxial hinge device according to claim 1 is characterized in that,
Described rotation control unit is made of cam mechanism that produces described first torque and described second torque and the limit rotation unit that limits described first and described second rotational angle.
3. biaxial hinge device according to claim 2 is characterized in that,
Described cam mechanism is by constituting with lower member:
First cam body and second cam body, they are located in the described hinge housing, and opposed mode is mounted respectively on described first and described second to be separated from each other also;
First cam follower and second cam follower, they are located in the described hinge housing equally, and respectively with described first cam body and the described second cam body sliding contact, thereby control described first cam body and the rotation separately of described second cam body; And
Flexible element, its elasticity are arranged between described first cam follower and second cam follower.
4. biaxial hinge device according to claim 3 is characterized in that,
On the periphery of described first cam body of described cam mechanism and described second cam body, be respectively equipped with a plurality of recesses, be respectively equipped with protuberance on described first cam follower and described second cam follower, described protuberance is embedded in each described recess according to described first and described second rotational angle.
5. biaxial hinge device according to claim 2 is characterized in that,
Described limit rotation unit be located between described first and the described hinge housing and described second and described hinge housing between.
6. biaxial hinge device according to claim 2 is characterized in that,
Described limit rotation unit is by constituting with the lower part: be located at the first limit rotation unit between described first and the described hinge housing and be located at the second limit rotation unit between described second and the described hinge housing.
7. biaxial hinge device according to claim 6 is characterized in that,
The described first limit rotation unit is by constituting with the lower part: first limit rotation body and the 1B rotation restrictor, the described first limit rotation body is installed on described first and has 1A limit rotation protuberance, and described 1B rotation restrictor is located on the hinge housing and with described 1A limit rotation protuberance and is engaged;
The described second limit rotation unit is by constituting with the lower part: second limit rotation body and the 2B rotation restrictor, the described second limit rotation body is installed on described second and has 2A limit rotation protuberance, and described 2B rotation restrictor is located on the hinge housing and with described 2A limit rotation protuberance and is engaged.
8. biaxial hinge device according to claim 2 is characterized in that,
Described rotation control unit comprises the sliding action limiting unit, is that fulcrum carry out in rotational action process with respect to described first framework with any one among described first and described second in described second framework, first cam follower of this sliding action limiting unit restriction cam mechanism and the sliding action of second cam follower are the rotational action that fulcrum carries out thereby limit described second framework with any another in described first and described second.
9. biaxial hinge device according to claim 1 is characterized in that,
Be provided with the cable through hole respectively vertically on described first and described second, the cable in these cable through holes is electrically connected described first framework and described second framework.
10. biaxial hinge device according to claim 1 is characterized in that,
The cover portion that this hinge housing and described cable are covered together can be installed on described hinge housing with loading and unloading.
11. biaxial hinge device according to claim 1 is characterized in that,
Described rotation control unit constitutes: when the closure state that described first framework and described second framework are overlapped from them is opened, be that the fulcrum rotation is opened with described second framework with first at first by making described hinge housing, after the rotation of described hinge housing is limited by the described first limit rotation unit of described limit rotation unit, described second framework is rotated with described second and is opened, when turning to predetermined rotational angular, limit this rotation by means of the described second limit rotation unit.
12. biaxial hinge device according to claim 1 is characterized in that,
Described rotation control unit constitutes: when the open mode more than their use angle is closed with described first framework and described second framework, second framework is rotated and closure with described second, after having limited this rotation by means of the described second limit rotation unit, described second framework is the fulcrum closure with described hinge housing with described first then.
13. an electronic equipment is characterized in that,
This electronic equipment is provided with first framework of the such operating portion of keyboard by upper surface and second framework that lower surface is provided with display part constitutes, and the biaxial hinge device that uses a pair of described claim 1 to put down in writing couples together described first framework and described second framework in the mode that can open and close.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-064338 | 2008-03-13 | ||
| JP2008064338A JP5112121B2 (en) | 2008-03-13 | 2008-03-13 | Biaxial hinge device and electronic equipment |
| JP2008064338 | 2008-03-13 |
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| CN101534331A true CN101534331A (en) | 2009-09-16 |
| CN101534331B CN101534331B (en) | 2012-02-01 |
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| CN2009101281745A Expired - Fee Related CN101534331B (en) | 2008-03-13 | 2009-03-12 | Biaxial hinge device and electronic device |
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| Country | Link |
|---|---|
| JP (1) | JP5112121B2 (en) |
| KR (1) | KR101031731B1 (en) |
| CN (1) | CN101534331B (en) |
| TW (1) | TWI398209B (en) |
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- 2009-03-12 CN CN2009101281745A patent/CN101534331B/en not_active Expired - Fee Related
- 2009-03-13 TW TW098108112A patent/TWI398209B/en not_active IP Right Cessation
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| CN104613089B (en) * | 2013-11-05 | 2017-04-12 | 昆山万禾精密电子有限公司 | Stable opening and closing biaxial hinge |
| CN104613089A (en) * | 2013-11-05 | 2015-05-13 | 昆山万禾精密电子有限公司 | Stable opening and closing biaxial hinge |
| US10019038B2 (en) | 2015-05-05 | 2018-07-10 | Apple Inc. | Electronic device with dynamic hinge gap cover |
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| CN112888867A (en) * | 2018-12-28 | 2021-06-01 | 三菱制钢株式会社 | Hinge and electronic equipment |
| CN111997991A (en) * | 2020-07-29 | 2020-11-27 | 华为技术有限公司 | Rotating shaft mechanism and electronic equipment |
| CN112612324A (en) * | 2020-12-29 | 2021-04-06 | 广东虹勤通讯技术有限公司 | Angle adjusting assembly and electronic equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI398209B (en) | 2013-06-01 |
| TW200946002A (en) | 2009-11-01 |
| KR101031731B1 (en) | 2011-04-29 |
| KR20090098686A (en) | 2009-09-17 |
| CN101534331B (en) | 2012-02-01 |
| JP5112121B2 (en) | 2013-01-09 |
| JP2009222079A (en) | 2009-10-01 |
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