CN112128216B - Folding screen device and hinge mechanism - Google Patents
Folding screen device and hinge mechanism Download PDFInfo
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- CN112128216B CN112128216B CN201910556315.7A CN201910556315A CN112128216B CN 112128216 B CN112128216 B CN 112128216B CN 201910556315 A CN201910556315 A CN 201910556315A CN 112128216 B CN112128216 B CN 112128216B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 86
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000005452 bending Methods 0.000 claims description 11
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
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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
- G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
- G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Mathematical Physics (AREA)
- Telephone Set Structure (AREA)
Abstract
A folding screen and a hinge mechanism are provided, the hinge mechanism is suitable for connecting two housings, and the housings are suitable for connecting a flexible screen. The hinge mechanism comprises a bottom shell, a transmission unit and two rotating pieces. The bottom shell defines a track area and two installation areas adjacent to the track area, and each installation area is defined by a second arc-shaped bottom plate part, a second rib part and a corresponding first rib part. The transmission unit comprises two transmission shafts and a synchronizing piece. The rotating parts are respectively arranged in the installation areas of the bottom shell. The second bottom plate part of the bottom shell is designed into an arc shape, so that the arc-shaped plate bodies of the two rotating parts of the hinge mechanism can rotate along the second bottom plate part by taking the corresponding transmission shaft as the axle center, the smoothness of the hinge mechanism during rotation is increased, the transmission shaft is synchronously rotated during rotation through the synchronizing part, and the stability of the hinge mechanism during rotation is increased.
Description
Technical Field
The present invention relates to a folding screen device, and more particularly, to a folding screen device and a hinge mechanism.
Background
Along with the evolution of market trend, the screen of palm-type electronic devices such as smart phones and tablet computers is continuously improved towards the direction of high resolution and large size, so that consumers can obtain better ornamental effect and operability both on film appreciation and on hand game entertainment, and the huge body is also extended to the trouble of inconvenient carrying. Therefore, the flexible screen is increasingly paid attention to by mobile phone manufacturers, and is applied from the fields of home televisions and computer screens to the fields of smart phones, tablet computers and the like, so that folding smart phones and tablet computers are developed, and the effects of large-size screens and convenience in carrying are achieved. Besides requiring the flexible screen to have high resolution and material characteristics capable of bearing repeated folding and unfolding, the body bearing the flexible screen and the rotating shaft connected with the body play important roles, so that how to manufacture a folding intelligent mobile phone and a tablet personal computer to fold smoothly and achieve sufficient stability is an important problem to be achieved in the industry.
Disclosure of Invention
One of the objects of the present invention is to provide a hinge mechanism which has high stability and can pivot smoothly.
In some embodiments, the hinge mechanism of the present invention is adapted to connect two housings adapted to connect a flexible screen. The hinge mechanism comprises a bottom shell, a transmission unit and a rotating piece. The bottom shell is provided with a first bottom plate part, two first ribs, two second bottom plate parts and two second ribs, the first ribs are arranged on the first bottom plate part at intervals and jointly define the track area with the first bottom plate part, the second bottom plate parts are arc-shaped and connected with the first bottom plate part, the second ribs are respectively arranged on the second bottom plate part and are mutually spaced with the first ribs in the left-right direction, and each second bottom plate part, each second rib and the corresponding first rib jointly define the installation area. The transmission unit is arranged on the bottom shell in a covering mode and comprises a base, two transmission shafts and a synchronizing piece. The base is provided with two assembling parts extending in the left-right direction, the bottom side of each assembling part is upwards provided with a containing groove, and the base is provided with an upper pivot block positioned at one end of the containing groove. The transmission shafts are respectively arranged in the accommodating grooves, each transmission shaft is provided with a pin joint end part and a toothed end part which are positioned at opposite ends, and a spiral rod part which is arranged between the pin joint end part and the toothed end part, the pin joint end parts are pin-jointed with the corresponding upper pin joint blocks, and the spiral rod parts define spiral guide grooves. The synchronous piece is arranged in the track area and is provided with two arc-shaped joint parts which are respectively jointed with the spiral rod part, two first guide parts which are respectively arranged at the arc-shaped joint parts and respectively extend into the spiral guide grooves, and a connecting plate part which is connected between the arc-shaped joint parts and is movably arranged in the track area, and the synchronous piece is used for enabling the transmission shaft to synchronously rotate when rotating. The rotary parts are respectively arranged in the mounting areas of the bottom shell and can drive the transmission shafts to rotate, each rotary part comprises an arc-shaped plate body which is arranged on the corresponding second bottom plate part and can rotate along the second bottom plate part by taking the corresponding transmission shaft as the axis, and a connecting plate body which extends outwards from one side of the arc-shaped plate body, is suitable for connecting the bottom shell with the transmission unit and is used for connecting one of the machine shells, and the arc-shaped plate body is provided with tooth groove parts which face upwards and are meshed with the toothed end parts of the corresponding transmission shafts. The rotating piece can rotate relative to the bottom shell between an unfolding position where the connecting plate bodies are positioned on the same horizontal plane and a folding position where the connecting plate bodies oppositely rotate at least 90 degrees.
In some embodiments, the mounting area is adjacent to the left and right ends of the track area in the left and right direction, each second bottom plate portion has a front side and a rear side spaced apart in a front-rear direction perpendicular to the left and right direction, one of the second bottom plate portions forms a slot from the front side to the rear to form an arc-shaped supporting section on the left and right sides of the slot, the other second bottom plate portion forms a slot from the rear side to the front to form an arc-shaped supporting section on the left and right sides of the slot, the arc-shaped plate body of each rotating member further has a guiding face portion facing downward and disposed on the corresponding slot, and two sliding contact portions disposed on the left and right sides of the guiding face portion and disposed on the corresponding arc-shaped supporting section.
In some embodiments, the arcuate plate body further has a limiting groove facing upward and arranged in the tooth groove portion, the limiting groove has a first clamping end portion and a second clamping end portion located at opposite ends, the transmission unit further includes two elastic positioning members disposed on the base and respectively corresponding to the limiting groove, when the rotating member rotates to the unfolding position, the elastic positioning members elastically press against the first clamping end portion respectively to elastically position the rotating member to the unfolding position, and when the rotating member rotates to the folding position, the elastic positioning members elastically press against the second clamping end portion respectively to elastically position the rotating member to the folding position.
In some embodiments, each assembly portion further has a hollow area, a cross bar section transversely arranged in the hollow area, and a stop section positioned at one end of the hollow area, the elastic positioning members are respectively arranged in the hollow areas of the assembly portion, and each elastic positioning member has a bending portion arranged at one end of the corresponding cross bar section in a crossing manner, an abutting portion arranged at one end of the bending portion and used for abutting against the corresponding stop section, and a spring portion arranged at the other end of the bending portion and used for elastically pressing against the first clamping end or the second clamping end.
In some embodiments, the first base plate portion has a track groove in the track area, and the synchronizing member further has a second guide portion disposed at the bottom side of the link plate portion and extending into the track groove to enable the synchronizing member to move along the track groove.
In some embodiments, the base further has a plate portion connected between the assembly portions and aligned with the bottom side of the assembly portions, the plate portion of the synchronizing member being movable in the rail groove in cooperation with the bottom side of the plate portion and the top side of the first bottom plate portion.
In some aspects, a center of rotation is defined centrally of the hinge mechanism, and a central axis passing through the center of rotation and extending in the left-right direction to divide the hinge mechanism into upper and lower halves that are 180 degree rotationally symmetric about the center of rotation.
Another object of the present invention is to provide a foldable screen device with high stability by using the hinge mechanism
In some embodiments, the folding screen device of the present invention is suitable for connecting with a flexible screen. The folding screen device comprises two shells and a plurality of hinge mechanisms. Each shell comprises an outer shell body and a bearing plate body arranged on the inner side of the outer shell body, and the bearing plate body of the shell is suitable for being connected with the flexible screen. The hinge mechanisms are arranged between the machine shells along the left-right direction, and the connecting plate body of the rotating piece of each hinge mechanism is respectively connected with the bearing plate body.
In some embodiments, the folding screen device further includes a side back shell for accommodating the bottom shell of the hinge mechanism in the left-right direction, and a plurality of connecting rods for connecting the hinge mechanisms to each other and fixing the hinge mechanisms to the side back shell.
In some aspects, each hinge mechanism defines a center of rotation located centrally of the hinge mechanism, and a central axis passing through the center of rotation and extending in the left-right direction to divide the hinge mechanism into upper and lower halves that are 180 degree rotationally symmetric about the center of rotation.
The beneficial effects of the invention are that: through designing the second bottom plate portion of drain pan into the arc, the arc plate body that makes two rotating parts of hinge mechanism can use corresponding transmission shaft as the axle center and rotate along the second bottom plate portion, increases the smooth degree when hinge mechanism rotates, and makes the transmission shaft rotate in step when rotating through the synchronizing piece, increases the stability when hinge mechanism rotates, reduces the risk of screen damage.
Drawings
Other features and advantages of the present invention will become apparent from the following description of the embodiments with reference to the drawings, in which:
FIG. 1 is a perspective view of an embodiment of a folding screen device of the present invention, illustrating the two housings of the embodiment unfolded to be horizontal;
FIG. 2 is a perspective view illustrating the housing folded in an inward fold;
FIG. 3 is an exploded perspective view of the embodiment;
FIG. 4 is another angular view of FIG. 3;
FIG. 5 is a perspective view illustrating the plurality of hinge mechanisms of the embodiment disposed on a side back shell of the embodiment;
FIG. 6 is a perspective view of the hinge mechanism illustrating two rotating members of the hinge mechanism in an extended position;
FIG. 7 is a top view of FIG. 6;
FIG. 8 is a lower view of FIG. 6;
FIG. 9 is an exploded perspective view of the hinge mechanism illustrating a bottom shell of the hinge mechanism;
FIG. 10 is another angular view of FIG. 9;
FIG. 11 is another exploded perspective view of the hinge mechanism illustrating the swivel of the hinge mechanism;
FIG. 12 is another angular view of FIG. 11;
FIG. 13 is yet another exploded perspective view of the hinge mechanism illustrating a drive unit of the hinge mechanism;
FIG. 14 is another angular view of FIG. 13;
FIG. 15 is a side view illustrating the swivel member spaced from the outer plate portion of the base of the drive unit;
FIG. 16 is a cross-sectional view taken along line XVI-XVI of FIG. 7;
FIG. 17 is a perspective view of the hinge mechanism illustrating the two rotating members of the hinge mechanism in a retracted position;
FIG. 18 is a top view of FIG. 17;
FIG. 19 is a lower view of FIG. 17; and
Fig. 20 is a cross-sectional view taken along line XX-XX in fig. 18.
Detailed Description
Referring to fig. 1 and 2, an embodiment of a foldable screen device 100 of the present invention is suitable for being connected to a flexible screen (not shown), and capable of folding the flexible screen in a manner of being folded inwards along a folding direction B1 shown in fig. 1. In this embodiment, "flexible" means that the structure and the material can be bent and deformed to a certain extent after being stressed, so that the flexible screen can also be called a flexible screen or a flexible screen, and is not limited to this embodiment.
Referring to fig. 3 to 5, one embodiment of the folding screen device 100 includes two chassis 1, a side back case 2, and a plurality of hinge mechanisms 4. Each housing 1 includes an outer housing 11 and a carrier plate 12. Each outer shell 11 has a base plate 111, three coamings 112 respectively connected to a long side edge and two short side edges of the base plate 111, and a plurality of positioning posts 113 disposed on the base plate 111. The inner surface of the shroud 112 defines a receptacle 112a. The carrying plates 12 are respectively disposed inside the outer casing 11, and each carrying plate 12 abuts against the positioning column 113 and the corresponding receiving portion 112a inside the enclosing plate 112, so as to separate an installation space 13 from the base plate 111, and is fixed to the positioning column 113 by a plurality of locking members (not shown). The carrier plate 12 is adapted to be connected to the flexible screen. The side back shell 2 is located between the machine shells 1 in a manner of extending along a left-right direction D1, and is used for accommodating the hinge mechanism 4 in a manner of being aligned along the left-right direction D1. When the housing 1 is unfolded to a horizontal state as shown in fig. 1,3 and 4, the side back shell 2 is shielded by the outer shell 11 and is accommodated in the installation space 13, and when the housing 1 is folded to an upright state as shown in fig. 2, the side back shell 2 is exposed to one side of the outer shell 11.
With continued reference to fig. 3 to 5, the hinge mechanism 4 is disposed in the left-right direction D1, is accommodated in the side back shell 2, and partially extends into the mounting space 13 to be connected to the bottom side of the carrier plate 12. The folding screen device 100 further includes a plurality of link members 3, where the link members 3 are used to connect and fix the hinge mechanisms 4 to the side back shell 2 in pairs. In the present embodiment, the number of the hinge mechanisms 4 is 4, and the number of the link members 3 is 2, but not limited to the present embodiment.
Referring to fig. 6 to 8, in the present embodiment, each hinge mechanism 4 defines a rotation center P located at the center of the hinge mechanism 4, and a central axis C1 passing through the rotation center P and extending in the left-right direction D1 to divide the hinge mechanism 4 into upper and lower halves, and the upper and lower halves of the hinge mechanism 4 are rotationally symmetrical about the rotation center P by 180 degrees, and the detailed structure and advantages of this design will be described in detail in the following paragraphs.
Referring to fig. 9 and 10, each hinge mechanism 4 includes a bottom case 5, two rotating members 6, and a transmission unit 7. The bottom case 5 defines a centrally located track area 51, and two mounting areas 52 adjacent to the left and right ends of the track area 51 in the left and right direction D1, respectively. The bottom case 5 includes a first bottom plate portion 53, two first rib portions 54, two second bottom plate portions 55, and two second rib portions 56. The first bottom plate 53 and the second bottom plate 55 are integrally connected to each other in the left-right direction D1 in a downwardly concave arc-shaped structure. The first rib portions 54 are provided at both ends of the first bottom plate portion 53 with a spacing therebetween in the left-right direction D1, and define the track area 51 together with the first bottom plate portion 53. The first bottom plate 53 has a rail groove 531 located at the center of the rail area 51 and extending to the first rib 54 in the left-right direction D1, and the rail groove 531 has a first end 531a and a second end 531b. The second bottom plate portions 55 are located at both right and left ends of the first bottom plate portion 53, and each second bottom plate portion 55 has a front side 551 and a rear side 552 spaced apart in a front-rear direction D2 perpendicular to the right-left direction D1, and a fixing section 553 connecting the first bottom plate portion 53 in the right-left direction D1. The second bottom plate 55 on the right of the drawing in fig. 9 has a slot 554 formed rearward from the front side 551, and further has arc-shaped supporting sections 555 on the left and right sides of the slot 554, and the fixing sections 553 of the second bottom plate 55 on the right of the drawing are connected to the rear side 552. The second bottom plate 55 on the left side of the drawing in fig. 9 is formed with another slot 554 from the rear side 552, and further formed with arc-shaped supporting sections 555 on the left and right sides of the slot 554, and the fixing sections 553 of the second bottom plate 55 on the left side of the drawing are connected with the front side 551. The fixing section 553 is used for fixing with the transmission unit 7 by two locking parts (not shown). The second ribs 56 are provided at outermost ends of the second bottom plate portion 55 in the left-right direction D1, respectively, and are spaced apart from the first ribs 54 in the left-right direction D1. Each second bottom plate portion 55, each second rib portion 56 and the corresponding first rib portion 54 together define the aforementioned mounting area 52. In this embodiment, the bottom case 5 further has two lower pivot blocks 57 respectively disposed on the fixing sections 553, and the function thereof will be described in detail in the following paragraphs.
Referring to fig. 11 and 12, the rotating members 6 are respectively disposed in the mounting areas 52 of the bottom case 5. Each rotating member 6 includes an arcuate plate 61 and a connecting plate 62 extending outwardly from one side of the arcuate plate 61 and extending outwardly from the bottom housing 5 and the transmission unit 7. The arcuate plate body 61 is disposed on the corresponding second bottom plate portion 55, and has a downward-facing guiding surface portion 611, two downward-facing sliding surface portions 612 disposed on the left and right sides of the guiding surface portion 611, an upward-facing spline portion 613, and a limit groove 614 disposed on the upward side and parallel to the spline portion 613. In this embodiment, the guiding surface 611 is disposed in the corresponding slot 554, so that the rotating member 6 can be limited to the mounting area 52 in the left-right direction D1, and the stability of the rotating member 6 during rotation is improved. In an alternative embodiment, the second bottom plate 55 may not have the slot 554 formed therein, and the arcuate plate 61 may be similarly disposed on the mounting region 52 and slide over the second bottom plate 55 without the slot 554. The sliding contact surface portions 612 are respectively disposed on the corresponding arc-shaped support sections 555, and the sliding contact surface portions 612 are matched with the arc-shaped support sections 555 in an arc shape, so that the smoothness of the rotating member 6 during rotation is increased. The connection plate 62 is connected to the bottom surface of the carrying plate 12 (see fig. 4), so that the rotary member 6 is connected to the casing 1. The functions of the tooth groove portion 613 and the limit groove 614 will be described in detail in the following paragraphs.
Referring to fig. 13 and 14, the transmission unit 7 covers the bottom case 5 and the rotating member 6, and includes a base 71, two transmission shafts 72, a synchronization member 73, and two elastic positioning members 74. The base 71 has two assembling portions 711 extending in the left-right direction D1, a web portion 712 connected between the assembling portions 711 and aligned with the bottom side of the assembling portions 711, and two outer plate portions 713 connected to the left and right ends of the assembling portions 711, respectively. Each assembly part 711 is formed in a substantially semi-cylindrical shape, and a receiving groove 711a extending in the left-right direction D1 is formed upward from the bottom side. Each assembly part 711 has an upper pivot block 711b located at one end of the accommodating groove 711a, a hollow region 711c adjacent to the other end of the accommodating groove 711a, a cross bar section 711d transversely disposed in the hollow region 711c, and a stop section 711e located at one end of the hollow region 711c away from the cross bar section 711 d. The driving shafts 72 are disposed in the accommodating grooves 711a, respectively, and each driving shaft 72 has a pivot end 721 and a toothed end 722 at opposite ends, and a screw portion 723 interposed between the pivot end 721 and the toothed end 722. The pivot end 721 is pivotally connected to the upper pivot block 711b and the lower pivot block 57, which are opposite to each other and are engaged with each other in the up-down direction D3, and the toothed end 722 is engaged with the corresponding tooth groove portion 613 of the rotating member 6, so that the transmission shaft 72 can be positioned in the accommodating groove 711a by the upper pivot block 711b and the lower pivot block 57 and driven by the rotating member 6 to pivot in the accommodating groove 711a. The screw rod 723 defines a screw guide groove 723a.
With continued reference to fig. 11 to 14, the synchronizing member 73 is disposed in the track area 51 and is abutted against the transmission shaft 72, so that the transmission shaft 72 rotates synchronously when rotating. Specifically, the synchronizing member 73 has two arc-shaped engaging portions 731, four first guide portions 732, a connecting plate portion 733, and a second guide portion 734. The arc-shaped engagement portions 731 are engaged with the screw portions 723, respectively. The first guide portions 732 are disposed in the arc-shaped engaging portions 731 in pairs, and extend into the corresponding spiral guide grooves 723a, so that when at least one of the driving shafts 72 rotates, the spiral guide grooves 723a guide the first guide portions 732 to move in the left-right direction D1, and further drive the entire synchronizing member 73 to move in the left-right direction D1, so that the two driving shafts 72 rotate synchronously. The connecting plate portion 733 is connected between the arc-shaped engaging portions 731 in the front-rear direction D2, and is located between the connecting plate portion 712 of the base 71 and the first bottom plate portion 53 of the bottom case 5 in the up-down direction D3. The second guide portion 734 is disposed at the bottom side of the connecting plate portion 733 and extends into the track groove 531, so that the synchronizing member 73 can move along the track groove 531 in the track area 51 when the transmission shaft 72 rotates, and stability of the synchronizing member 73 during movement is improved. It should be noted that, by designing the connecting plate portion 733 of the synchronizing member 73 to move in the track area 51 so as to vertically attach the connecting plate portion 712 and the first bottom plate portion 53, the height of the synchronizing member 73 in the vertical direction D3 is reduced, and thus the overall height of the hinge mechanism 4 can be reduced, so that the overall thickness of the hinge mechanism 4 is not increased by the attachment of the synchronizing member 73. In addition, the curved plate 61 of the rotating member 6 is engaged with the curved contour of the bottom of the assembling portion 711 of the base 71, which not only helps to reduce the overall thickness of the hinge mechanism 4, but also helps to reduce the overall thickness of the hinge mechanism 4 and strengthen the structural stability of the hinge mechanism 4, wherein the rotating member 6 is spaced from the outer plate 713 by a gap 714 as shown in fig. 15 for the second rib 56 of the bottom shell 5 to extend into and be engaged with the assembling portion 711.
Referring to fig. 11 to 14, the limiting slot 614 of each rotating member 6 has a first clamping end 614a and a second clamping end 614b at opposite ends. The elastic positioning members 74 are respectively disposed in the hollow areas 711c of the base 71 and respectively correspond to the limiting grooves 614 of the rotating member 6. In this embodiment, each elastic positioning member 74 is formed by connecting a plurality of elastic sheets, and has a bending portion 741, an abutting portion 742 at one end of the bending portion 741, and a pressing portion 743 at the other end of the bending portion 741. The bent portion 741 is disposed across the corresponding cross bar section 711d, the abutting portion 742 abuts against the corresponding stop section 711e, and the spring portion 743 is configured to elastically press against the first engaging end 614a or the second engaging end 614b to achieve a locking effect.
Referring to fig. 6 to 8 and 16 to 20, in detail, the rotating member 6 can rotate relative to the bottom case 5 between an unfolded position as shown in fig. 6 to 8 and 16 and a folded position as shown in fig. 17 to 20. When the rotary member 6 is in the extended position, the casing 1 assumes a horizontal state as shown in fig. 1, and the connection plate body 62 of the rotary member 6 is located on the same horizontal plane as shown in fig. 6. The synchronizing member 73 is adjacent to the rotating member 6 on the left side of the drawing of fig. 10, and the second guide portion 734 of the synchronizing member 73 is located at the first end portion 531a of the rail groove 531 as shown in fig. 8. The spring portions 743 of the elastic positioning members 74 are respectively elastically pressed against the first engaging end portions 614a of the limiting grooves 614 of the rotating member 6 as shown in fig. 16, so that the rotating member 6 can be elastically positioned at the extended position by the elastic positioning members 74, and the housing 1 is locked in a horizontal state.
Referring to fig. 1 and fig. 17 to fig. 20, when the user wants to fold the flexible screen, the user can apply a force to pull the casing 1 to rotate in the bending direction B1, and when the applied force exceeds the elastic force applied by the elastic positioning member 74 to the first clamping end 614a, the connecting plate 62 of the rotating member 6 is forced to drive the arc-shaped plate 61 to separate from the elastic pressing of the first clamping end 614a, so that the arc-shaped plate 61 can rotate along the second bottom plate 55 with the corresponding transmission shaft 72 as the axis; in the process of rotating the arc-shaped plate 61, the toothed end 722 (see fig. 12) of the transmission shaft 72 is linked through the toothed groove part 613, and the rotation stroke of the transmission shaft 72 is controlled through the synchronizing piece 73, so that the transmission shaft 72 synchronously rotates; further, the second guide portion 734 of the synchronizing member 73 moves from the first end portion 531a of the rail groove 531 to the second end portion 531b along the rail groove 531 during the rotation of the transmission shaft 72 until the link plate bodies 62 are rotated at least 90 degrees toward each other, so that the rotating member 6 is rotated to the retracted position, and the second guide portion 734 moves to the second end portion 531b. In the present embodiment, the rotating member 6 and the housing 1 are rotated by more than 90 degrees to reach the retracted position and the upright state, but in other embodiments, the rotating member 6 and the housing 1 may be rotated by only 90 degrees to reach the retracted position and the upright state.
As described above with reference to fig. 6 to 8, the upper and lower halves of each hinge mechanism 4 are rotationally symmetrical by 180 degrees about the rotation center P. The design has the advantages that the two rotating parts 6 of each hinge mechanism 4 are not required to be designed into symmetrical structures, the rotating parts 6 with the same shape can be uniformly used, and the cost of die opening manufacturing is reduced; in addition, the two rotating members 6 of each hinge mechanism 4 are respectively disposed at the upper right corner of the drawing in fig. 7 and the lower left corner of the drawing in fig. 7, and when the hinge mechanisms 4 are arranged as shown in fig. 4, the connecting plate bodies 62 of the hinge mechanisms 4 are staggered like a saw-tooth, which is helpful for the hinge mechanisms 4 to improve the connection stability between the hinge mechanisms 4 and the housing 1 in the same number.
Of course, in alternative embodiments, the hinge mechanism 4 may not be rotationally symmetrical. In this embodiment, the mounting areas 52 are respectively adjacent to the left and right ends of the track area 51, but when the hinge mechanism 4 is not rotationally symmetrical, the mounting areas 52 may be adjacent to one of the ends of the track area 51, i.e. the slots 554 may be formed in the second bottom plate 55 located at the left side of fig. 9 or the right side of fig. 9, and the fixing sections 553 may be disposed in the other second bottom plate 55 located at the left side of fig. 9 or the right side of fig. 9.
In summary, in the folding screen device of the present invention, the second bottom plate 55 of the bottom case 5 is designed into an arc shape, so that the arc-shaped plate 61 of the two rotating members 6 of the hinge mechanism 4 can rotate along the second bottom plate 55 with the corresponding transmission shaft 72 as the axis, which increases the smoothness of the hinge mechanism 4 when rotating, and the transmission shaft 72 rotates synchronously through the synchronizing member 73, which increases the stability of the hinge mechanism 4 when rotating, and reduces the risk of screen damage, thus the present invention can be achieved.
The foregoing is merely illustrative of the present invention and is not intended to limit the scope of the invention, which is defined by the appended claims and their equivalents.
Claims (10)
1. A hinge mechanism adapted to connect two housings adapted to connect a flexible screen, the hinge mechanism comprising:
A bottom case defining a track area and two mounting areas adjacent to the track area in a left-right direction, the bottom case including a first bottom plate portion, two first ribs, two second bottom plate portions, and two second ribs, the first ribs being disposed at intervals to the first bottom plate portion and defining the track area together with the first bottom plate portion, the second bottom plate portions being arc-shaped and connected to the first bottom plate portion, the second ribs being disposed at the second bottom plate portions and spaced from the first ribs in the left-right direction, respectively, each of the second bottom plate portions, each of the second ribs, and the corresponding first rib defining the aforementioned mounting area together;
The transmission unit is covered on the bottom shell and comprises
A base having two assembling parts extending in the left-right direction, each assembling part having a receiving groove formed upward at a bottom side thereof and having an upper pivot block at one end of the receiving groove,
Two transmission shafts respectively arranged in the accommodating groove, each transmission shaft is provided with a pin joint end part and a toothed end part which are positioned at opposite ends, and a screw rod part which is arranged between the pin joint end part and the toothed end part, wherein the pin joint end part is pin-jointed with the corresponding upper pin joint block, the screw rod part defines a screw guide groove, and
The synchronous piece is arranged in the track area and is provided with two arc-shaped joint parts which are respectively jointed with the spiral rod part, two first guide parts which are respectively arranged at the arc-shaped joint parts and respectively extend into the spiral guide grooves, and a connecting plate part which is connected between the arc-shaped joint parts and is movably arranged in the track area, and the synchronous piece is used for synchronously rotating when the transmission shaft rotates; and
The two rotating parts are respectively arranged in the mounting area of the bottom shell and can drive the transmission shaft to rotate, each rotating part comprises an arc-shaped plate body which is arranged on the corresponding second bottom plate part and can rotate along the second bottom plate part by taking the corresponding transmission shaft as an axle center, and a connecting plate body which extends outwards from one side of the arc-shaped plate body, is suitable for connecting the bottom shell with the transmission unit and is used for connecting one of the machine shells, and the arc-shaped plate body is provided with a tooth groove part which faces upwards and is meshed with the toothed end part of the corresponding transmission shaft;
the rotary piece can rotate relative to the bottom shell between an unfolding position where the connecting plate bodies are positioned on the same horizontal plane and a folding position where the connecting plate bodies oppositely rotate at least 90 degrees.
2. The hinge mechanism of claim 1, wherein: the installation area is adjacent to the left end and the right end of the track area in the left-right direction respectively, each second bottom plate part is provided with a front side and a rear side which are spaced in the front-rear direction perpendicular to the left-right direction, one second bottom plate part backwards forms a slot from the front side to form arc-shaped support sections positioned at the left side and the right side of the slot, the other second bottom plate part forwards forms a slot from the rear side to form arc-shaped support sections positioned at the left side and the right side of the slot, the arc-shaped plate body of each rotating part is also provided with a guiding face which faces downwards and is arranged at the corresponding slot, and two sliding contact faces which are respectively positioned at the left side and the right side of the guiding face and are arranged at the corresponding arc-shaped support sections.
3. The hinge mechanism of claim 1, wherein: the arc-shaped plate body is further provided with a limiting groove facing upwards and arranged on the tooth groove part side by side, the limiting groove is provided with a first clamping end part and a second clamping end part which are positioned at opposite ends, the transmission unit further comprises two elastic positioning parts which are arranged on the base and respectively correspond to the limiting groove, when the rotating part rotates to the unfolding position, the elastic positioning parts are respectively and elastically pressed against the first clamping end part to enable the rotating part to be elastically positioned at the unfolding position, and when the rotating part rotates to the folding position, the elastic positioning parts are respectively and elastically pressed against the second clamping end part to enable the rotating part to be elastically positioned at the folding position.
4. A hinge mechanism according to claim 3, wherein: each assembly part is further provided with a hollowed-out area, a cross rod section transversely arranged in the hollowed-out area and a stop section positioned at one end of the hollowed-out area, the elastic positioning parts are respectively arranged in the hollowed-out area of the assembly part, and each elastic positioning part is provided with a bending part, an abutting part and a spring part, wherein the bending part is used for being arranged on the corresponding cross rod section in a crossing mode, the abutting part is positioned at one end of the bending part and is used for being abutted against the corresponding stop section, and the spring part is positioned at the other end of the bending part and is used for being elastically pressed against the first clamping end part or the second clamping end part.
5. The hinge mechanism of claim 1, wherein: the first bottom plate part is provided with a track groove positioned in the track area, and the synchronizing piece is further provided with a second guiding part which is arranged at the bottom side of the connecting plate part and stretches into the track groove so that the synchronizing piece can move along the track groove.
6. The hinge mechanism of claim 5, wherein: the base is also provided with a connecting plate part which is connected between the assembling parts and is aligned with the bottom side of the assembling parts, and the connecting plate part of the synchronizing piece moves in the track groove in a matched mode with the bottom side of the connecting plate part and the top side of the first bottom plate part.
7. The hinge mechanism according to any one of claims 1 to 6, wherein: defining a rotation center located at the center of the hinge mechanism, and a central axis passing through the rotation center and extending in the left-right direction to divide the hinge mechanism into upper and lower halves, the upper and lower halves of the hinge mechanism being rotationally symmetrical by 180 degrees about the rotation center.
8. A folding screen device adapted to be connected to a flexible screen, the folding screen device comprising:
Each shell comprises an outer shell body and a bearing plate body arranged at the inner side of the outer shell body, and the bearing plate bodies of the shells are suitable for being connected with the flexible screen; and
A plurality of hinge mechanisms according to any one of claims 1 to 6, being arranged between the housings in the left-right direction, the connection plate bodies of the rotating members of each hinge mechanism being connected to the carrier plate bodies, respectively.
9. The folding screen device of claim 8, wherein: the hinge mechanism also comprises a side back shell for arranging and accommodating the bottom shell of the hinge mechanism along the left-right direction, and a plurality of connecting rods for connecting the hinge mechanisms in pairs and fixing the hinge mechanisms on the side back shell.
10. The folding screen device of claim 8, wherein: each hinge mechanism defines a rotation center located at the center of the hinge mechanism, and a central axis passing through the rotation center and extending in the left-right direction to divide the hinge mechanism into upper and lower halves, the upper and lower halves of the hinge mechanism being rotationally symmetrical by 180 degrees about the rotation center.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910556315.7A CN112128216B (en) | 2019-06-25 | 2019-06-25 | Folding screen device and hinge mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910556315.7A CN112128216B (en) | 2019-06-25 | 2019-06-25 | Folding screen device and hinge mechanism |
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| CN112128216B true CN112128216B (en) | 2024-04-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20220115349A (en) * | 2021-02-10 | 2022-08-17 | 삼성전자주식회사 | Electronic device including hinge module |
| CN115705074A (en) * | 2021-08-12 | 2023-02-17 | 北京小米移动软件有限公司 | Hinge assembly and electronic device |
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| CN104879377A (en) * | 2015-06-08 | 2015-09-02 | 象山智欧机械有限公司 | Homodynamic double-shaft hinge simple and easy to locate |
| CN206309767U (en) * | 2016-10-07 | 2017-07-07 | 富世达股份有限公司 | Supporting device and flexible display equipment |
| CN206972747U (en) * | 2017-06-16 | 2018-02-06 | 深圳市富世达通讯有限公司 | Twin axle drive module |
| CN207018340U (en) * | 2017-06-13 | 2018-02-16 | 富世达股份有限公司 | Hinge and the folding-type electronic device with the hinge |
| CN210423406U (en) * | 2019-06-25 | 2020-04-28 | 深圳市富世达通讯有限公司 | Folding screen device and hinge mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM498451U (en) * | 2014-10-06 | 2015-04-01 | Jarllytec Co Ltd | Hinge device |
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2019
- 2019-06-25 CN CN201910556315.7A patent/CN112128216B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879377A (en) * | 2015-06-08 | 2015-09-02 | 象山智欧机械有限公司 | Homodynamic double-shaft hinge simple and easy to locate |
| CN206309767U (en) * | 2016-10-07 | 2017-07-07 | 富世达股份有限公司 | Supporting device and flexible display equipment |
| CN207018340U (en) * | 2017-06-13 | 2018-02-16 | 富世达股份有限公司 | Hinge and the folding-type electronic device with the hinge |
| CN206972747U (en) * | 2017-06-16 | 2018-02-06 | 深圳市富世达通讯有限公司 | Twin axle drive module |
| CN210423406U (en) * | 2019-06-25 | 2020-04-28 | 深圳市富世达通讯有限公司 | Folding screen device and hinge mechanism |
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