Elastic sheet type flexible pivot mechanism

Abstract

The utility model relates to an elastic sheet type flexible pivot mechanism, which is provided with two pivot units which are symmetrically arranged, each pivot unit comprises a base, and the base is provided with a plurality of shaft grooves and a plurality of rotating grooves; a plurality of rotating frames, wherein each rotating frame is rotatably arranged in each rotating groove; the two sides of each spring piece are provided with a shaft groove and a rotating frame respectively; the connecting pieces are provided with a plurality of sliding grooves, and the sliding ends of the rotating frames are movably arranged in the sliding grooves in a penetrating mode; one side of each balancing piece is fixedly arranged on each connecting piece, the other side of each balancing piece is provided with a rib part in a protruding mode, and the rib part can be selectively attached to the outer side of one rotating frame or located in the groove part; the upper cover covers the base and shields the inner shaft rod; when a user performs a folding action, clear hand feeling can be generated by means of the spring piece and the balance piece, and the folding mechanism has the advantages of small size, light weight, few elements and capability of reducing cost.

Description

Technical Field

[0001] The utility model relates to a pivot mechanism, especially an elastic sheet type flexible pivot mechanism. Background Art

[0002] In the folding handheld electronic devices of the prior art, whether it is an in-folding type or an out-folding type, its pivot mechanism plays an important role. How to be able to open and close smoothly and at the same time have a suitable feel is one of the goals pursued by the current industry.

[0003] For the currently common hinge mechanisms, most of them use multiple linear springs and multiple roller assemblies to be assembled with each other. When pivoting, the torsion is generated by changing the expansion and contraction amount of the linear springs. However, the components composed of the foregoing linear springs have more and more complex overall mechanism elements, and the assembly process is more complicated and time-consuming. Therefore, it is necessary to improve the foregoing problems. Summary of the Utility Model

[0004] In view of the disadvantages and deficiencies of the prior art, the utility model provides an elastic sheet type flexible pivot mechanism, which achieves the purpose of having a feel during opening and closing and reducing components by arranging a spring sheet and a balance member between a base and a rotating frame.

[0005] To achieve the above object, the technical means adopted by the utility model is to design an elastic sheet type flexible pivot mechanism, which has two pivot units symmetrically arranged, and each pivot unit includes:

[0006] A base, which has a plurality of shaft grooves and a plurality of rotating grooves, and each shaft groove is located between each rotating groove;

[0007] A plurality of rotating frames, each rotating frame has a plurality of rotating ends, a sliding end and a groove portion. Each rotating end is arranged at intervals on one side of the sliding end. The groove portion is concave between each rotating end, and each rotating end is rotatably arranged in each rotating groove;

[0008] A plurality of spring sheets, one side of each spring sheet is connected with an inner shaft rod, the inner shaft rod is rotatably arranged in one of the shaft grooves, and the other side of each spring sheet is connected with an outer shaft rod, and the outer shaft rod is arranged at the sliding end of one of the rotating frames;

[0009] A plurality of connecting members, each connecting member has a plurality of sliding grooves, and the sliding end of each rotating frame is movably inserted through each sliding groove;

[0010] A plurality of balance members, one side of each balance member is fixed to each connecting member, and the other side of each balance member protrudes with a rib portion, and the rib portion can selectively abut against the outside of one of the rotating frames or be located in the groove portion;

[0011] An upper cover is provided on the base and shields the inner shaft rod.

[0012] Furthermore, in the elastic sheet type flexible pivot mechanism, each of the shaft grooves has a plurality of arc tracks, each of the arc tracks protruding from opposite ends of each of the shaft grooves, each of the arc tracks being concave arc-shaped, two ends of the inner shaft rod respectively abutting against each of the arc tracks, one end of each of the rotation grooves being recessed to form an arc groove, the arc groove being concave arc-shaped, each of the rotation brackets forming a plurality of arc convex portions, each of the arc convex portions being an arc-shaped sheet body, and each of the arc convex portions abutting against each of the arc grooves.

[0013] Furthermore, in the elastic sheet type flexible pivot mechanism, the sliding end is formed with a plurality of guiding portions, each of the guiding portions being arranged at intervals, and each of the guiding portions passing through each of the sliding grooves.

[0014] Furthermore, in the elastic sheet type flexible pivot mechanism, the spring sheet is an elastic long strip sheet body, and two sides thereof are respectively wound into hollow cylindrical shapes, and the inner shaft rod and the outer shaft rod respectively pass through two sides of the spring sheet.

[0015] Furthermore, in the elastic sheet type flexible pivot mechanism, each of the connecting members further has a through hole, the through hole penetrating the connecting member and located between each of the sliding grooves, and the rib portion of each of the balancing members can be selectively located in the through hole.

[0016] Furthermore, in the elastic sheet type flexible pivot mechanism, the balancing member is a sheet body with a Z-shaped cross section.

[0017] Furthermore, in the elastic sheet type flexible pivot mechanism, the balancing member is a spring sheet.

[0018] The advantages of the present utility model are that with the arrangement of each rotation bracket in cooperation with the spring sheet and the balancing member, a user can generate a distinct tactile sensation during the folding operation, namely, the step feeling or locking feeling generated during the folding process, and compared with the prior art, it further has the advantages of small volume, light weight, fewer components, which can reduce costs and is easy to maintain and repair. Description of the Drawings

[0019] Figure 1 It is a three-dimensional external view of the present utility model.

[0020] Figure 2 It is a partial enlarged view of the present utility model.

[0021] Figure 3 It is a partial exploded view of the present utility model.

[0022] Figure 4 It is another partial exploded view of the present utility model.

[0023] Figure 5 It is a partial top view of the present utility model.

[0024] Figure 6 This is a sectional view of the present utility model in a 180-degree state.

[0025] Figure 7 This is a sectional view of the present utility model in a 90-degree state.

[0026] Figure 8 This is a sectional view of the present utility model in a 0-degree state.

[0027] Figure 9 This is a schematic diagram of the trajectory state of the spring piece of the present utility model during the overall folding process. Detailed implementation manners

[0028] The following further elaborates on the technical means adopted by the present utility model to achieve the predetermined creative purpose in conjunction with the drawings and the preferred embodiments of the present utility model.

[0029] Please refer to Figure 1 As shown, the elastic sheet type flexible pivot mechanism of the present utility model has two pivot units 1 symmetrically arranged. Each pivot unit 1 includes a base 10, a plurality of rotating frames 20, a plurality of spring pieces 30, a plurality of connecting pieces 40, a plurality of balancing pieces 50 and an upper cover 60.

[0030] Please refer to Figures 2 to 3 As shown, the base 10 has opposite side portions and end portions. In the following description of each component, the sides referred to are based on the length direction of the base 10. The sides located on the left and right sides of the base 10 are called the two side edges, and the sides located in the front and rear directions of the base 10 are called the two ends. More specifically, with Figures 1 to 3 as the reference drawing, in each drawing, the direction from the lower left to the upper right is called the side, and the direction from the upper left to the lower right is called the end. The base 10 has a plurality of shaft grooves 11 and a plurality of rotating grooves 12. Each shaft groove 11 is located between the rotating grooves 12. An arc track 111 is respectively convexly provided at opposite ends of each shaft groove 11. The arc track 111 is in a downward concave arc shape. An arc groove 121 is concavely provided at one end of the rotating groove 12. The arc groove 121 is in a downward concave arc shape.

[0031] Please refer to Figures 3 to 4As shown, each rotating frame 20 has a plurality of rotating ends 21, a sliding end 22 and a groove portion 23. Each rotating end 21 is connected to the sliding end 22, and each rotating end 21 is spaced apart on one side of the sliding end 23. Each rotating end 21 is formed with an arc convex portion 211. The arc convex portion 211 is an arc-shaped sheet body, and its shape corresponds to the shape of the arc groove 121. Each rotating end 21 is rotatably disposed in each rotating groove 12, and the arc convex portion 211 abuts against the arc groove 121 and can slide along the arc groove 121; the sliding end 22 is formed with a plurality of guiding portions 221, and the guiding portions 221 are spaced apart; the groove portion 23 is recessed into the rotating frame 20 from the direction of the rotating end 21 towards the sliding end 22 and is located between the rotating ends 21.

[0032] Please refer to Figures 2 to 5 As shown, one side of each spring piece 30 is connected with an inner shaft rod 31. The inner shaft rod 31 is rotatably disposed in one of the shaft grooves 11. Specifically, the spring piece 30 is an elastic long strip body, and its two sides are respectively wound into a hollow column shape. The inner shaft rod 31 penetrates through one side of the spring piece 30 and both ends respectively abut against the arc rails 111 at this end. An outer shaft rod 32 is penetrated through the other side of the spring piece 30, and the outer shaft rod 32 is disposed at the sliding end 22 of the rotating frame 20.

[0033] Each connecting member 40 has a plurality of sliding grooves 41 and a through hole 42. The sliding grooves 41 are recessed at opposite ends of the connecting member 40 and the positions correspond to the positions of the guiding portions 221. The through hole 42 penetrates through the connecting member 40 and is located between the sliding grooves 41. In this embodiment, the through hole 42 is a rectangular hole, but it is not limited thereto. The guiding portions 221 of each rotating frame 20 are movably penetrated through the sliding grooves 41. The connecting member 40 is used for connecting with an external screen (not shown in the figure), and this is the prior art, so it will not be described in detail.

[0034] One side of each balancing member 50 is fixed to the connecting member 40, and the other side is formed with a rib portion 53. The other sides of the balancing members 50 abut against the rotating frames 20 and are located at the positions of the through holes 42. In this embodiment, the balancing member 50 is an element in the form of a spring piece, and its cross section is in a structure similar to a Z shape. A plurality of fixing holes 51 are penetrated through one side of the balancing piece 50, and the balancing piece 50 is fixed to the connecting member 40 by a plurality of locking members 52 penetrating through the fixing holes 51. The rib portion 53 protrudes upward and can movably abut against the outside of the rotating frame 20 or is located in the through hole 42, but it is not limited thereto. The form of the balancing member 50 can be changed according to the user's needs.

[0035] The upper cover 60 is covered on the base 10 and shields the inner shaft rod 31. The upper cover 60 is used to prevent the inner shaft rod 31 from disengaging from the shaft groove 11.

[0036] When the present utility model is in use, please refer to Figures 6 to 8 For Figure 5The cross-sectional view of the A-A sectional line position is described by hypothetically installing it on a folding electronic device (not shown in the figure) and performing continuous pivoting operations. Please refer to Figure 6 As shown, the present invention is in a form of being unfolded at 180 degrees. Among them, the spring piece 30 is in the most compressed state under the greatest pressure. The rib 53 of the balance member 50 abuts against the outer side of the rotating frame 20 to achieve the effect of preventing the connecting member 40 from retreating and balancing the rebound torque generated after the screen of the folding electronic device is bent. Please refer to Figure 7 As shown, the present invention is pivoted to a form where the included angle between the two connecting members 40 is approximately 90 degrees. The aforementioned included angle refers to the included angle between the two opposite side surfaces of the two connecting members 40. During the pivoting process, the connecting member 40 slides in the direction towards the base 10, and the rib 53 will continuously abut against and press the bottom side of the rotating frame 20, while the spring piece 30 gradually releases the elastic force. Please refer to Figure 8 As shown, the present invention is pivoted to a form where the included angle between the two rotating frames 20 is 0 degrees (i.e., the state of being parallel and closed to each other). During the pivoting process, the connecting member 40 slides in the direction towards the base 10, and the rib 53 moves to the groove 23 of the rotating frame 20 and does not exert force on the rotating frame 20. The spring piece 30 is in the state of the loosest torsion release and the maximum torque release.

[0037] Please also refer to Figure 9 As shown, it is a schematic diagram of the movement trajectory of the spring piece 30 of the present invention. It can be seen from the figure that the spring piece 30 is located on the movement path of the outer shaft rod 32, and the movement trajectory B is formed with the center B1. The center B1 and the axis of the inner shaft rod 31 of the spring piece 30 are not concentric. In other words, the axis of the outer shaft rod 32 of the spring piece 30 adopts an eccentric movement mode during the folding process of the present invention.

[0038] During the aforementioned process, with the cooperation of the settings of the rotating frames 20, the spring piece 30, and the balance member 50, the user can generate a clear hand feeling when performing the folding action. The aforementioned hand feeling refers to the step feeling or locking feeling generated during the folding process. And compared with the prior art, the same effect can be achieved by using the structure of the spring piece 30 and the balance member 50 (replaced in the form of a spring piece). It has the advantages of small volume, light weight, fewer components, lower cost, and easy maintenance and repair.

[0039] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field to which the present invention pertains, within the scope of the technical solution of the present invention, can make some changes or modifications using the above-disclosed technical content as equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A shrapnel-type flexible pivot mechanism, characterized in that, A two-pivot unit with a symmetric arrangement, each pivot unit comprising: A base having a plurality of shaft grooves and a plurality of rotation grooves, each shaft groove being located between each rotation groove; A plurality of rotating frames, each rotating frame having a plurality of rotating ends, a sliding end, and a groove portion, each rotating end being spaced apart on one side of the sliding end, the groove portion being recessed between each rotating end, and each rotating end being rotatably disposed in each rotation groove; A plurality of spring plates, one side of each spring plate being connected with an inner shaft rod, the inner shaft rod being rotatably disposed in one of the shaft grooves, the other side of each spring plate being connected with an outer shaft rod, the outer shaft rod being disposed at the sliding end of one of the rotating frames; A plurality of connectors, each connector having a plurality of sliding grooves, the sliding end of each rotating frame being movably inserted through each sliding groove; A plurality of balancing members, one side of each balancing member being fixedly provided on each connector, the other side of each balancing member protruding with a rib portion, the rib portion being selectively abutted against the outer side of one of the rotating frames or located in the groove portion; An upper cover covering the base and shielding the inner shaft rod.

2. The shrapnel type flexible pivot mechanism according to claim 1, wherein, Each shaft groove has a plurality of arc tracks, each arc track protruding at opposite ends of each shaft groove, each arc track being concave arc-shaped, two ends of the inner shaft rod respectively abutting against each arc track, one end of each rotation groove being recessed to form an arc groove, the arc groove being concave arc-shaped, each rotating frame forming a plurality of arc convex portions, each arc convex portion being an arc-shaped sheet body, each arc convex portion abutting against each arc groove.

3. The shrapnel type flexible pivot mechanism according to claim 2, characterized in that, The sliding end forms a plurality of guiding portions, each guiding portion being spaced apart, each guiding portion being inserted through each sliding groove.

4. The shrapnel type flexible pivot mechanism according to any one of claims 1 to 3, characterized in that The spring plate is an elastic long strip sheet body, opposite ends thereof being respectively wound into hollow cylindrical shapes, the inner shaft rod and the outer shaft rod being respectively inserted into the hollow cylindrical shapes at two ends of the spring plate.

5. The shrapnel type flexible pivot mechanism according to claim 4, characterized in that, Each connector has a through hole, the through hole penetrating the connector and being located between each sliding groove, the rib portion of each balancing member being selectively located in the through hole.

6. The shrapnel type flexible pivot mechanism according to claim 5, wherein, The balancing member is a sheet body with a Z-shaped cross-section.

7. The shrapnel type flexible pivot mechanism according to claim 6, characterized in that, The balancing member is a spring plate.

Images