Hinge device and display device comprising same

Abstract

The invention provides a hinge device and a display device formed by the hinge device, which are characterized in that a plurality of bracket units which are arranged in parallel at equal intervals are combined on one surface side of a flexible sheet which can be elastically bent, a plurality of pivots are respectively embedded on the bracket units, and a plurality of first torsion sheets are respectively provided with first shaft holes and first long shaft holes; the plurality of second torsion sheets are respectively provided with a second shaft hole corresponding to the first long shaft hole and a second long shaft hole corresponding to the first shaft hole, and the second torsion sheets and the first torsion sheets are arranged in an overlapping manner by penetrating and pivoting the pivots in series; when the flexible sheet responds to external force operation to change the movable state, the support unit can synchronously link the pivots to move in the first long shaft hole and the second long shaft hole so as to adapt to the connection length change generated by the first torsion sheet and the second torsion sheet along with the movement of the flexible sheet. A flexible screen is combined on one surface side, far away from the support units, of the flexible sheet, so that a display device can be formed.

Description

Technical Field

[0001] This invention relates to a hinge device and a display device composed thereof, and more particularly to a hinge device and a display device composed thereof that can be bent synchronously and positioned in a fully extended and bent state, and can effectively prevent gravity from sagging when fully extended. Background Technology

[0002] With the increasing widespread application of wrist-worn flexible screens, various corresponding pivot torque mechanisms have also been disclosed. For example, Chinese Patent Application No. CN 111556687B discloses a cover and a smart bracelet, mainly featuring a synchronization component between a housing and a cover that are joined together. The housing has a first housing, two third housings, and a plurality of second housings arranged side by side. The cover has a first cover, two third covers, and a plurality of second covers, which are respectively joined to the first, third, and second housings. The synchronization component has a plurality of partially overlapping and staggered hinge bases, each hinge base having a shaft component that can pass through the staggered first, second, and third hinge groups and a damping chain. The damping chain has... A plurality of partially overlapping and staggered strips are arranged, each strip having an elongated damping groove and a shaft hole, which are respectively fitted onto adjacent shaft components. The damping groove has a first position groove and a second position groove at both ends, and has an open notch at the end near the first position groove. By using the damping groove to clamp the shaft component, a resistance (torsional) force can be generated during pivoting. When the synchronization component is in a fully extended state, each shaft component is located in the first position groove, and when the synchronization component is in a fully bent state, each shaft component is located in the second position groove, thereby absorbing the amount of change in the inner length of the synchronization component.

[0003] The above structure has the following disadvantages in practical applications:

[0004] 1. Since most of the aforementioned wrist-worn flexible screens (or smart bracelets) require the screen to be unfolded into a flat state for operation, the damping grooves of the damping chain and the shaft component only provide simple torque (frictional resistance) without guiding movement or locking at specific angles (fully unfolded or fully bent). Therefore, it cannot be positioned when the flexible screen is fully bent or fully extended, and when force is applied to touch the unfolded flexible screen, the damping chain is prone to bending and deformation due to the inability to withstand the applied force, directly affecting the user's operation of the flexible screen and resulting in serious application deficiencies.

[0005] 2. Since the housing is formed by connecting the first, second, and third housings with flat top surfaces, when the housing is bent, a bent, pointed protrusion will be formed at the joint between the first, second, and third housings. This uneven pointed protrusion will not only affect the flatness of the flexible screen set on the top surface of the housing, but more seriously, it will cause wear and damage to the bottom of the flexible screen.

[0006] 3. Since the adjacent hinge bases of the synchronization component are connected by plugging in each other with local parts to form a movable connection, the adjacent hinge bases will not only generate large frictional resistance during the movement; at the same time, when the adjacent hinge bases are extended, retracted and bent, they are very likely to get stuck at certain specific angles, affecting the smoothness of the overall unfolding or bending operation.

[0007] 4. Since the various strips of the damping chain are linked only by the torque (frictional resistance) between the damping groove and the shaft component, when the housing begins to bend, the first, second, and third housings in each part often cannot maintain synchronous bending, which can easily cause uneven curvature of the bending of each part of the housing, affecting the product's refinement and overall quality.

[0008] In view of the aforementioned drawbacks of the pivot torque mechanism commonly used in wrist-worn flexible screens in practical applications, the inventors researched ways to improve these drawbacks, and finally the present invention was developed. Summary of the Invention

[0009] The main objective of this invention is to provide a hinge device comprising a plurality of equally spaced parallel support units connected to one side of an elastically bendable flexible sheet. A plurality of pivots are respectively embedded in at least one end of each support unit. A plurality of first torsion plates are respectively provided with a first shaft hole and a first long shaft hole, and a plurality of second torsion plates are respectively provided with a second shaft hole corresponding to the first long shaft hole and a second long shaft hole corresponding to the first shaft hole. These are pivotally connected by the pivots, causing the second torsion plates to overlap with the first torsion plates. The first and second long shaft holes are respectively provided with stop portions. When the flexible sheet responds to an external force, it... By changing the activity state, the flexible plate and each support unit can synchronously move each pivot in the first and second long shaft holes to adapt to the change in the connection length between the first and second torsion plates as the flexible plate moves. In conjunction with the interference between each pivot and each stop in the first and second long shaft holes, a self-locking or positioning mechanism is established between the first and second torsion plates. When the flexible plate is fully extended, each pivot can locally interfere with each of the first and second shaft holes, so that each pivot can be pushed by each torsion plate to generate a force to keep the flexible plate straight, so that the flexible plate has the structural strength required to withstand the operating force.

[0010] Another object of the present invention is to provide a hinge device, wherein the first and second long shaft holes are respectively provided with first and second arc-shaped protrusions in the middle section. The first and second arc-shaped protrusions enable the first and second long shaft holes to form first and second front spaces close to the first and second shaft holes, and first and second rear spaces away from the first and second shaft holes, respectively. The first and second arc-shaped protrusions are respectively provided with first and second front stop portions and first and second rear stop portions, respectively corresponding to the first and second front spaces and the first and second rear spaces. By pivoting and moving in the first and second front spaces or the first and second rear spaces, and by using the first and second front stop portions or the first and second rear stop portions to form a stop and position, the flexible piece can be positioned in different positions of complete bending or complete extension.

[0011] Another object of the present invention is to provide a hinge device in which each pivot has a flat surface, and the first and second shaft holes are respectively provided with first and second straight edges. When the flexible sheet is fully extended, the flat surface of each pivot rotates to a position that partially interferes with the first and second straight edges, so that each pivot can be linked to the flexible sheet to generate a force that keeps it straight.

[0012] Another object of the present invention is to provide a display device using the above-mentioned hinge device, wherein a flexible screen is attached to a side of the flexible sheet away from each of the support units, so that the flexible screen can be expanded or bent synchronously with the flexible sheet, and the flexible screen can be supported by the flexible sheet to have structural strength to withstand the operating touch pressure.

[0013] This invention provides a hinge device, characterized in that it comprises:

[0014] A flexible sheet that can be bent elastically;

[0015] A support assembly having a plurality of equally spaced elongated support units arranged side by side, each support unit being coupled to one side of the flexible sheet;

[0016] Multiple pivots are respectively embedded in each of the support units;

[0017] A torsion chain assembly has a first torsion component and a second torsion component extending parallel to each other; the first torsion component has a plurality of first torsion plates, each of which has a first shaft hole and a first long shaft hole; the second torsion component has a plurality of second torsion plates, each of which has a second shaft hole and a second long shaft hole, the second shaft hole corresponding to the first long shaft hole, and the second long shaft hole corresponding to the first shaft hole, and is pivotally connected by each of the pivots, so that the second torsion plates are arranged in an overlapping state with the first torsion plates via each of the pivots; the flexible plate can move between a straight and bent state in response to external force operation, and each pivot can adapt to the change in the distance between the pivots connected to the first torsion component and the second torsion component caused by the straight and bent movements of the flexible plate through the displacement space provided by the first long shaft hole and the second long shaft hole.

[0018] The hinge device, wherein: the first long shaft hole and the second long shaft hole are respectively provided with an inwardly protruding first arc-shaped protrusion and a second arc-shaped protrusion on at least one side of the middle section of the pivot displacement path; the first arc-shaped protrusion can define the interior of the first long shaft hole as a first front space close to the first shaft hole and a first rear space away from the first shaft hole; the second arc-shaped protrusion can define the interior of the second long shaft hole as a second front space close to the second shaft hole and a second rear space away from the second shaft hole.

[0019] The hinge device, wherein: the first arcuate protrusion is provided with a first front stop portion facing the first front space and a first rear stop portion facing the first rear space, and the second arcuate protrusion is provided with a second front stop portion facing the second front space and a second rear stop portion facing the second rear space; when the flexible sheet is in a bent state, each pivot is located in the first front space and the second front space of the first long shaft hole and the second long shaft hole, and is respectively abutted by the first front stop portion and the second front stop portion, thereby forming a positioning function to push the flexible sheet to maintain the bent state; when the flexible sheet is extended to be straight, each pivot is located in the first rear space and the second rear space of the first long shaft hole and the second long shaft hole, and is respectively abutted by the first rear stop portion and the second rear stop portion, thereby forming a positioning function to push the flexible sheet to maintain the straight state.

[0020] The hinge device wherein: the first long shaft hole and the second long shaft hole are respectively provided with a first front recess and a second front recess at one end close to the first shaft hole and the second shaft hole, and are respectively provided with a first rear recess and a second rear recess at one end away from the first shaft hole and the second shaft hole.

[0021] The hinge device, wherein: the edge of the first shaft hole is provided with a first external notch and a first straight edge, the edge of the second shaft hole is provided with a second external notch and a second straight edge, and each pivot is provided with a flat surface; when the flexible sheet is in a fully extended straight state, each flat surface rotates to a position that partially interferes with the first straight edge and the second straight edge at an angle, so that each of the first torque component and the second torque component generates a force that pushes each pivot toward keeping the flexible sheet straight.

[0022] The hinge device wherein: one end of the first shaft hole and the second shaft hole away from the first outer notch and the second outer notch respectively connects to a first hollow hole and a second hollow hole via a first inner notch and a second inner notch.

[0023] The hinge device, wherein: the first torque component and the second torque component are respectively coupled to a first stop component and a second stop component, the first stop component and the second stop component each having a plurality of first stop plates and second stop plates; each of the first stop plates is respectively stacked on each of the first torque plates, and each of the first stop plates is respectively provided with a first limiting hole corresponding to the first shaft hole and a first limiting elongated hole corresponding to the first long shaft hole; each of the second stop plates is respectively stacked on each of the second torque plates, and each of the second stop plates is respectively provided with a second limiting hole corresponding to the second shaft hole and a second limiting elongated hole corresponding to the second long shaft hole.

[0024] The hinge device wherein: each support unit is provided with at least one branch, each branch is provided with a through-hole, and each pivot is provided with a through-hole and moves synchronously with each support unit.

[0025] The hinge device wherein: each pivot has a connecting hole on an end face away from each branch, and a through hole is provided on a plurality of pressure caps, and a plurality of connecting members pass through each through hole and are detachably fixed in each connecting hole, so that each pressure cap covers the end portion of each pivot.

[0026] The hinge device wherein: a frame strip is attached to the periphery of the flexible sheet, and a groove is provided around the inner periphery of the frame strip; each support unit has an axially extending protrusion at at least one end, the protrusion being able to be inserted into the groove, so that each support unit can be attached to the surface of the flexible sheet via the frame strip.

[0027] The hinge device wherein: the support assembly has at least one base that is connected in parallel to each of the support units.

[0028] The hinge device wherein: the support assembly has at least one base that is connected in parallel to each of the support units.

[0029] A display device utilizing the hinge mechanism, wherein: a flexible screen is attached to the flexible sheet on a side away from the support assembly.

[0030] The present invention provides a hinge device in which a flexible sheet can move between a straight and a bent state in response to an external force operation, and each pivot can adapt to the change in the distance between the first and second torsion components that occurs as the flexible sheet moves between straight and bent states by means of the displacement space provided by the first and second long shaft holes.

[0031] To provide a more concrete understanding of the above-mentioned objectives, effects, and features of the present invention, the following description is provided with reference to the accompanying drawings. Attached Figure Description

[0032] Figure 1 This is an overall combined appearance diagram of the present invention.

[0033] Figure 2 yes Figure 1 An exploded 3D view showing the separation of the support frame assembly, torsion chain assembly, flexible sheet, and flexible screen.

[0034] Figure 3 yes Figure 2 A schematic diagram of the combination of the central support assembly and the pivot.

[0035] Figure 4 yes Figure 3 Exploded view of the intermediate torsion chain assembly.

[0036] Figure 5 This is a side view schematic diagram of the arrangement of the first and second torsion plates and the relative positions of each pivot in the present invention.

[0037] Figure 6 This is a schematic diagram of the usage state of the present invention (I); it reveals the first and second torsion components in a fully bent and coiled state.

[0038] Figure 7 yes Figure 6 Enlarged diagram of part A.

[0039] Figure 8 This is a schematic diagram (II) of the usage state of the present invention; it reveals the first and second torque components in a fully extended and flat state.

[0040] Figure 9 yes Figure 8 Enlarged diagram of part B.

[0041] Reference numerals in the attached figures: 1-Flexible sheet; 10-Flexible screen; 11-Frame strip; 12-Groove; 2-Support assembly; 20-Support unit; 200-Base; 21-Support; 22-Interlocking hole; 23-Protrusion; 3-First torque assembly; 30-First torque plate; 31-First shaft hole; 311-First outer notch; 312-First straight edge; 313-First inner notch; 314-First hollow hole; 32-First long shaft hole; 321-First arc-shaped protrusion; 3211-First front stop; 3212-First rear stop; 322-First front space; 3221-First front arc edge; 3222-First front recess; 323-First rear space; 3231-First rear arc edge; 3232-First rear recess; 4-Second torque assembly; 40-Second torque plate; 41-First... Two-axis hole; 411-Second outer notch; 412-Second straight edge; 413-Second inner notch; 414-Second hollow hole; 42-Second long shaft hole; 421-Second arc-shaped protrusion; 4211-Second front stop; 4212-Second rear stop; 422-Second front space; 4221-Second front arc edge; 4222-Second front recess; 423-Second rear space; 4231-Second rear arc edge; 4232-Second rear recess; 5-First stop assembly; 50-First stop piece; 51-First limiting hole; 52-First limiting long hole; 6-Second stop assembly; 60-Second stop piece; 61-Second limiting hole; 62-Second limiting long hole; 7-Pivot; 71-Connecting hole; 72-Cut surface; 8-Grantor; 81-Through hole; 82-Connecting part; C-Torque chain assembly. Detailed Implementation

[0042] Please refer to Figures 1 to 5 As shown, the main structure of the present invention includes: a flexible sheet 1, a support assembly 2, a pivot 7, and a torsion chain assembly C; wherein the flexible sheet 1 is an elastically bendable sheet, and a frame strip 11 is attached to the periphery of the flexible sheet 1, and a groove 12 is provided around the inner periphery of the frame strip 11; in a feasible embodiment, a flexible screen 10 is attached to the side of the flexible sheet 1 away from the groove 12, and the flexible screen 10 can bend or stretch synchronously with the flexible sheet 1.

[0043] The bracket assembly 2 has a plurality of equally spaced parallel elongated bracket units 20. Each bracket unit 20 has an axially extending protrusion 23 and a laterally bent support 21 at both ends. The protrusion 23 can be inserted into the groove 12, so that each bracket unit 20 can be connected to the flexible sheet 1 on the side away from the flexible screen 10 via the frame strip 11. Each support 21 is provided with a through hole 22.

[0044] In one feasible embodiment, the support assembly 2 has at least one base 200 arranged parallel to each of the support units 20, on which circuit components necessary for operating the flexible screen 10 are provided.

[0045] A plurality of pivots 7 are respectively inserted into each of the fitting holes 22, so that the connecting line L formed by connecting the centers of each pivot 7 can extend parallel to the flexible sheet 1. Each pivot 7 has a flat surface 72 along the axial direction on its periphery, and each pivot 7 has a connecting hole 71 on its end face away from the support 21.

[0046] The torsion chain assembly C is composed of a first torsion component 3 and a second torsion component 4 connected in series. The first torsion component 3 has a plurality of first torsion plates 30, each of which is provided with a first shaft hole 31 and a first long shaft hole 32, respectively fitted onto each of the adjacent pivots 7. The first long shaft hole 32 has an inwardly protruding first arc-shaped protrusion 321 on at least one side of the middle section. The first arc-shaped protrusion 321 enables the first long shaft hole 32 to form a first front space 322 close to the first shaft hole 31 and a first rear space 323 away from the first shaft hole 31 inside the first long shaft hole 32.

[0047] In the above structure, the first long shaft hole 32 is provided with a first front arc edge 3221 at one end near the first shaft hole 31, and a first rear arc edge 3231 at one end away from the first shaft hole 31; the first front arc edge 3221 is respectively provided with a first front recess 3222, and the first rear arc edge 3231 is respectively provided with a first rear recess 3232. The first front recess 3222 and the first rear recess 3232 can not only provide elasticity for the expansion and deformation of the first long shaft hole 32, but also accommodate the grease required for lubrication; and the first arc-shaped protrusion 321 is respectively provided with a first front stop 3211 facing the first front space 322 and a first rear stop 3212 facing the first rear space 323.

[0048] In one feasible embodiment, the first shaft hole 31 has an externally open first outer notch 311 and a first straight edge 312 at its edge. The end of the first shaft hole 31 away from the first outer notch 311 is connected to a first hollow hole 314 via a first inner notch 313. The first inner notch 313 and the first hollow hole 314 can not only provide elasticity for the expansion and deformation of the first shaft hole 31, but also accommodate the grease required for lubrication.

[0049] The second torque assembly 4 has a plurality of second torque plates 40, each of which is provided with a second shaft hole 41 and a second long shaft hole 42. Each second shaft hole 41 corresponds to a first long shaft hole 32, and each second long shaft hole 42 corresponds to a first shaft hole 31. They are respectively fitted onto each of the adjacent pivots 7, so that each second torque plate 40 can be connected to each of the first torque plates 30 in an overlapping arrangement via each of the pivots 7. The second long shaft hole 42 is provided with a protruding second arc-shaped protrusion 421 in the middle section. The second arc-shaped protrusion 421 can form a second front space 422 close to the second shaft hole 41 and a second rear space 423 away from the second shaft hole 41 inside the second long shaft hole 42.

[0050] In the above structure, the second long shaft hole 42 is provided with a second front arc edge 4221 at one end near the second shaft hole 41, and a second rear arc edge 4231 at one end away from the second shaft hole 41; the second front arc edge 4221 is respectively provided with a second front recess 4222, and the second rear arc edge 4231 is respectively provided with a second rear recess 4232. The second front recess 4222 and the second rear recess 4232 can not only provide elasticity for the expansion and deformation of the second long shaft hole 42, but also accommodate the grease required for lubrication; and the second arc-shaped protrusion 421 is respectively provided with a second front stop 4211 facing the second front space 422 and a second rear stop 4212 facing the second rear space 423.

[0051] In a feasible embodiment, the edge of the second shaft hole 41 is provided with a second external notch 411 and a second straight edge 412. The end of the second shaft hole 41 away from the second external notch 411 is connected to a second hollow hole 414 via a second internal notch 413. The second internal notch 413 and the second hollow hole 414 can not only provide elasticity for the expansion and deformation of the second shaft hole 41, but also accommodate the grease required for lubrication.

[0052] In practical applications, when each pivot 7 is positioned within the first and second front spaces 322 and 422 respectively, a gap can be left between the first and second front arcuate edges 3221 and 4221 and the partial surface of the pivot 7. This gap, combined with the expansion of the first and second front recesses 3222 and 4222, allows the first and second front spaces 322 and 422 to temporarily expand elastically, ensuring that the pivot 7 can completely pass through the first and second arcuate protrusions 321 and 421 into the first and second front spaces 322 and 422. Similarly, when each of the pivots 7 is positioned in the first and second rear spaces 323 and 423 respectively, a gap may be left between the first and second rear arc edges 3231 and 4231 and the partial surface of the pivot 7. By using this gap in conjunction with the expansion of the first and second rear recesses 3232 and 4232, the first and second rear spaces 323 and 423 can be temporarily elastically expanded to ensure that the pivot 7 can completely pass through the first and second arc protrusions 321 and 421 into the first and second rear spaces 323 and 423.

[0053] In a feasible embodiment, the first and second torque components 3 and 4 can be combined with the first and second stop components 5 and 6 as needed; wherein the first and second stop components 5 and 6 each have a plurality of first and second stop plates 50 and 60; each first stop plate 50 is respectively stacked on each of the first torque plates 30, and each first stop plate 50 is respectively provided with a first limiting hole 51 corresponding to the first shaft hole 31 and a first limiting elongated hole 52 corresponding to the first long shaft hole 32, respectively fitted onto each of the adjacent pivots 7; each second stop plate 60 is respectively stacked on each of the second torque plates 40, and each second stop plate 60 is respectively provided with a second limiting hole 61 corresponding to the second shaft hole 41 and a second limiting elongated hole 62 corresponding to the second long shaft hole 42, respectively fitted onto each of the adjacent pivots 7, thereby preventing each pivot 7 from loosening from each of the first and second torque plates 30 and 40.

[0054] In this embodiment, each pivot 7 is provided with a connecting hole 71 on the end face away from each branch 21, and a pressure cap 8 is provided next to the connecting hole 71. Each pressure cap 8 is provided with a through hole 81. By means of a connecting member 82 passing through each through hole 81 and extending into each connecting hole 71, each pressure cap 8 can be connected and fixed to the end of each pivot 7.

[0055] Please refer to Figures 6 to 9 As shown, in practical applications, when the user applies force to bend the flexible screen 10 (flexible sheet 1) to a fully bent, rolled-up state (such as...), Figure 6When (as shown), the flexible sheet 1 can synchronously move each of the support units 20 via the frame strip 11, driving each of the pivots 7 to move; wherein, part of the pivot 7 is located in the first front space 322 in the first long shaft hole 32, and is positioned by the first front stop 3211 and the first front arc edge 3221 abutting against each other, and at the same time, the flat surface 72 of the part of the pivot 7 rotates to a position where it partially interferes with the second straight edge 412 of the second shaft hole 41 at a large angle; while the adjacent pivot 7 is located in the second front space 422 in the second long shaft hole 42, and can be positioned by the second front stop 4211 and the second front arc edge 4221 abutting against each other, and at the same time, the flat surface 72 of the adjacent pivot 7 rotates to a position where it partially interferes with the first straight edge 312 of the first shaft hole 31 at a large angle (as shown). Figure 7 As shown, since the guiding force generated by the large-angle interference between the first and second straight edges 312, 412 and the flat surface 72 is relatively small, the mechanism by which each pivot 7 is positioned in the first and second front spaces 322, 422 allows the first and second torsion plates 30, 40 to form a self-locking (fixed position) state in a bent and rolled-up state. Furthermore, each pivot 7 can (via each support unit 20) link the flexible screen 10 (flexible sheet 1) to maintain the bent and positioned state, so that the flexible screen 10 (flexible sheet 1) can be fitted onto the wrist or other parts of the body for easy carrying.

[0056] When the user applies force to fully extend the flexible screen 10 (flexible sheet 1) to a flat state (e.g.) Figure 8 When (as shown), the flexible sheet 1 can synchronously move each of the support units 20 via the frame strip 11, driving each of the pivots 7 to move; wherein, part of the pivot 7 is located in the first rear space 323 in the first long shaft hole 32, and is positioned by the first rear stop 3212 and the first rear arc edge 3231 abutting against each other, and at the same time, the flat surface 72 of the part of the pivot 7 rotates to a position where it partially interferes with the second straight edge 412 of the second shaft hole 41 at a small angle; while the adjacent pivot 7 is located in the second rear space 423 in the second long shaft hole 42, and is positioned by the second rear stop 4212 and the second rear arc edge 4231 abutting against each other, and at the same time, the flat surface 72 of the adjacent pivot 7 rotates to a position where it partially interferes with the first straight edge 312 of the first shaft hole 31 at a small angle (e.g. Figure 9(As shown); by means of the mechanism in which each of the pivots 7 is positioned in the first and second rear spaces 323 and 423, the first and second torsion plates 30 and 40 can be self-locked (locked and fixed) in a straight and extended state; and the first and second straight edges 312 and 412 have the function of guiding the flat surface 72 to rotate to a completely flat position, which can drive each of the pivots 7 to (via each of the support units 20) to drive the flexible screen 10 (flexible sheet 1) to generate a force to keep it straight, so that the flexible screen 10 (flexible sheet 1) has sufficient structural strength to withstand the finger touch pressure operation force.

[0057] When applied in practice, the structure of the present invention has the following characteristics:

[0058] 1. When the flexible screen 10 (flexible sheet 1) is stretched flat, each of the pivots 7 is positioned in the first and second rear spaces 323 and 423. In conjunction with the characteristics of the first and second straight edges 312 and 412 guiding the flat surface 72 to rotate to a completely flat position, each of the pivots 7 can drive the flexible screen 10 (flexible sheet 1) to generate a force to keep it flat, so as to maintain the structural strength required to withstand the finger touch pressure operation force.

[0059] 2. The first and second long shaft holes 32 and 42 are respectively provided with first and second arc-shaped protrusions 321 and 421 in the middle section. The first and second arc-shaped protrusions 321 and 421 can respectively stop and position each pivot 7 in the first and second front spaces 322 and 422 or the first and second rear spaces 323 and 423, so that the flexible screen 10 (flexible sheet 1) can form a self-locking (locking position) state in different positions such as bending and rolling or straight extension.

[0060] 3. Each pivot 7 is spaced apart on the flexible sheet 1. Therefore, when each pivot 7 moves in conjunction with the first and second torque components 3 and 4, there will be no bending or sharp protrusions. Combined with the bending elasticity of the flexible sheet 1 itself, the flexible sheet 1 can maintain a smooth arc surface between each pivot 7, so as to effectively avoid wear and damage to the flexible screen 10.

[0061] 4. During the unfolding or bending process of the flexible screen 10 (flexible sheet 1), each pivot 7 is driven synchronously by each support unit 20, so that each of the first and second torsion plates 30 and 40 can move synchronously. Since there is no direct contact mechanism between the fixed parts (support units 20) of each pivot 7, there will be no movement jamming when the flexible screen 10 (flexible sheet 1) is unfolded or bent, which can ensure the smooth operation of the overall unfolding or bending.

[0062] In summary, the hinge device of the present invention and the display device composed thereof can indeed achieve synchronous bending activity and be stably fixed in the fully extended and bent state. At the same time, it can generate a pre-tightening force when fully extended, effectively preventing the sagging due to gravity. The above description is only a description of the preferred embodiment of the present invention. Any variations, modifications, alterations or equivalent substitutions that are extended based on the technical means and scope of the present invention should also fall within the protection scope of the present invention patent.

Claims

1. A hinge device, characterized in that, include: A flexible sheet that can be bent elastically (1); A support assembly (2) has a plurality of equally spaced elongated support units (20) arranged side by side, each support unit (20) being attached to one side of the flexible sheet (1); Multiple pivots (7) are respectively embedded in each of the support units (20); A torsion chain assembly (C) has a first torsion component (3) and a second torsion component (4) extending parallel to each other; the first torsion component (3) has a plurality of first torsion plates (30), each of the first torsion plates (30) having a first shaft hole (31) and a first long shaft hole (32); the second torsion component (4) has a plurality of second torsion plates (40), each of the second torsion plates (40) having a second shaft hole (41) and a second long shaft hole (42), the second shaft hole (41) corresponding to the first long shaft hole (32), and the second long shaft hole (42) corresponding to the first long shaft hole (32). The first shaft hole (31) is connected to each of the pivots (7) so that the second torsion plate (40) is arranged in an overlapping manner with the first torsion plate (30) via each of the pivots (7); the flexible plate (1) can move between a straight and bent state in response to external force operation; each pivot (7) can adapt to the change in the distance between the pivots (7) caused by the straight and bent movements of the first torsion assembly (3) and the second torsion assembly (4) as the flexible plate (1) moves through the displacement space provided by the first long shaft hole (32) and the second long shaft hole (42).

2. The hinge device as claimed in claim 1, characterized in that: The first long shaft hole (32) and the second long shaft hole (42) are respectively provided with an inwardly protruding first arc-shaped protrusion (321) and a second arc-shaped protrusion (421) on at least one side of the middle section of the displacement path of the pivot (7). The first arc-shaped protrusion (321) can define the interior of the first long shaft hole (32) as a first front space (322) close to the first shaft hole (31) and a first rear space (323) away from the first shaft hole (31). The second arc-shaped protrusion (421) can define the interior of the second long shaft hole (42) as a second front space (422) close to the second shaft hole (41) and a second rear space (423) away from the second shaft hole (41).

3. The hinge device as described in claim 2, characterized in that: The first arc-shaped protrusion (321) is provided with a first front stop (3211) facing the first front space (322) and a first rear stop (3212) facing the first rear space (323), and the second arc-shaped protrusion (421) is provided with a second front stop (4211) facing the second front space (422) and a second rear stop (4212) facing the second rear space (423); when the flexible sheet (1) is in a bent state, each of the pivots (7) is located in the first front space (322) of the first long shaft hole (32) and the second long shaft hole (42). In the second front space (422), and respectively abutted by the first front stop (3211) and the second front stop (4211), a positioning function is formed to push the flexible piece (1) to maintain a bent state; when the flexible piece (1) is stretched into a straight state, each of the pivots (7) is located in the first rear space (323) and the second rear space (423) of the first long shaft hole (32) and the second long shaft hole (42), and is respectively abutted by the first rear stop (3212) and the second rear stop (4212), a positioning function is formed to push the flexible piece (1) to maintain a straight state.

4. The hinge device as described in claim 3, characterized in that: The first long shaft hole (32) and the second long shaft hole (42) are respectively provided with a first front recess (3222) and a second front recess (4222) at one end close to the first shaft hole (31) and the second shaft hole (41), and respectively provided with a first rear recess (3232) and a second rear recess (4232) at one end away from the first shaft hole (31) and the second shaft hole (41).

5. The hinge device as described in claim 2, characterized in that: The first shaft hole (31) has an externally open first outer notch (311) and a first straight edge (312) at its edge, and the second shaft hole (41) has an externally open second outer notch (411) and a second straight edge (412) at its edge. Each pivot (7) has a flat surface (72). When the flexible sheet (1) is in a fully extended straight state, each flat surface (72) rotates to a position that has an angle of partial interference with the first straight edge (312) and the second straight edge (412), so that each of the first torque assembly (3) and the second torque assembly (4) generates a force that pushes each pivot (7) toward keeping the flexible sheet (1) straight.

6. The hinge device as described in claim 5, characterized in that: The ends of the first shaft hole (31) and the second shaft hole (41) away from the first outer notch (311) and the second outer notch (411) are respectively connected to a first hollow hole (314) and a second hollow hole (414) via a first inner notch (313) and a second inner notch (413).

7. The hinge device as described in claim 1, 2, 3, 4, 5, or 6, characterized in that: The first torque assembly (3) and the second torque assembly (4) are respectively coupled to a first stop assembly (5) and a second stop assembly (6). The first stop assembly (5) and the second stop assembly (6) have a plurality of first stop plates (50) and second stop plates (60). Each first stop plate (50) is superimposed on each first torque plate (30). Each first stop plate (50) is provided with a first limiting hole (51) corresponding to the first shaft hole (31) and a first limiting elongated hole (52) corresponding to the first long shaft hole (32). Each second stop plate (60) is superimposed on each second torque plate (40). Each second stop plate (60) is provided with a second limiting hole (61) corresponding to the second shaft hole (41) and a second limiting elongated hole (62) corresponding to the second long shaft hole (42).

8. The hinge device as described in claim 1, 2, 3, 4, 5, or 6, characterized in that: Each support unit (20) is provided with at least one branch (21), and each branch (21) is provided with a through hole (22). Each pivot (7) is inserted into each through hole (22) and moves synchronously with each support unit (20).

9. The hinge device as claimed in claim 7, characterized in that: Each support unit (20) is provided with at least one branch (21), and each branch (21) is provided with a through hole (22). Each pivot (7) is inserted into each through hole (22) and moves synchronously with each support unit (20).

10. The hinge device as claimed in claim 8, characterized in that: Each pivot (7) has a connecting hole (71) on one end face away from each branch (21), and a through hole (81) is provided on each of the plurality of pressure caps (8). By means of the plurality of connecting parts (82) passing through each of the through holes (81) and being detachably fixed in each of the connecting holes (71), each of the pressure caps (8) can cover the end of each pivot (7).

11. The hinge device as claimed in claim 9, characterized in that: Each pivot (7) has a connecting hole (71) on one end face away from each branch (21), and a through hole (81) is provided on each of the plurality of pressure caps (8). By means of the plurality of connecting parts (82) passing through each of the through holes (81) and being detachably fixed in each of the connecting holes (71), each of the pressure caps (8) can cover the end of each pivot (7).

12. The hinge device as described in claim 1, 2, 3, 4, 5, or 6, characterized in that: The flexible sheet (1) is joined to a frame strip (11) around its periphery, and a groove (12) is provided around the inner periphery of the frame strip (11); each support unit (20) has an axially extending protrusion (23) at at least one end, and the protrusion (23) can be inserted into the groove (12), so that each support unit (20) can be joined to the surface of the flexible sheet (1) via the frame strip (11).

13. The hinge device as described in claim 1, 2, 3, 4, 5, or 6, characterized in that: The support assembly (2) has at least one base (200) that is connected in parallel to each of the support units (20).

14. The hinge device as claimed in claim 7, characterized in that: The support assembly (2) has at least one base (200) that is connected in parallel to each of the support units (20).

15. The hinge device as claimed in claim 8, characterized in that: The support assembly (2) has at least one base (200) that is connected in parallel to each of the support units (20).

16. The hinge device as claimed in claim 10, characterized in that: The support assembly (2) has at least one base (200) that is connected in parallel to each of the support units (20).

17. A display device comprising a hinge mechanism according to any one of claims 1 to 6, characterized in that: The flexible sheet (1) has a flexible screen (10) attached to one side away from the support assembly (2).

18. A display device comprising the hinge device according to claim 7, characterized in that: The flexible sheet (1) has a flexible screen (10) attached to one side away from the support assembly (2).

19. A display device comprising the hinge device as described in claim 8, characterized in that: The flexible sheet (1) has a flexible screen (10) attached to one side away from the support assembly (2).

20. A display device comprising the hinge device of claim 10, characterized in that: The flexible sheet (1) has a flexible screen (10) attached to one side away from the support assembly (2).

21. A display device comprising the hinge device of claim 13, characterized in that: The flexible sheet (1) has a flexible screen (10) attached to one side away from the support assembly (2).

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