Double-shaft pivot device capable of enhancing torsion at specific angle

Abstract

The utility model provides a double-shaft pivot device for enhancing torsion at a specific angle, which comprises a first rotating component, a second rotating component, a driving component and a sliding block component, a first rotating shaft of the first rotating component is provided with a first thread, a second rotating shaft of the second rotating component is provided with a second thread, and the driving component is disc-shaped and is provided with a sliding rail. The distance between the wall face, close to the circle center, of the sliding rail and the circle center is not equal, the sliding block component comprises an elastic element, a sliding column and a connecting rod sliding block, and the sliding block component rotates on any one of the first rotating shaft and the second rotating shaft to drive the driving component to rotate to drive the other one of the first rotating shaft and the second rotating shaft to rotate to a preset angle. And the sliding column interferes with the rotating motion of the driving component so as to enhance the torsion required by rotation. The double-shaft pivot device capable of enhancing the torsion at the specific angle can provide different operation torsion handfeel.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double shaft hinge, more particularly to a double shaft hinge with enhanced torque at a specific angle. BACKGROUND

[0002] Devices such as notebook computers and foldable mobile phones have a structure with an upper cover and a base that can be opened and closed relative to each other. The operation mode is to drive the upper cover and the base to open and close relative to each other by a double shaft hinge.

[0003] The current double shaft hinge cannot change the required torque when rotating at a specific opening angle. That is, the torque of the current double shaft hinge changes linearly or gently when rotating, and cannot increase the rotating feeling at a specific angle. SUMMARY

[0004] Therefore, in order to solve the various problems of the existing double shaft hinge, the utility model provides a double shaft hinge with enhanced torque at a specific angle.

[0005] To achieve the above object and other objects, the utility model provides a double shaft hinge with enhanced torque at a specific angle, which comprises: a first rotating member including a first rotating shaft and a first rotating arm, the surface of the first rotating shaft is provided with a first thread, one end of the first rotating arm is connected to the first rotating shaft; a second rotating member is arranged in parallel with the first rotating member, the second rotating member includes a second rotating shaft and a second rotating arm, the surface of the second rotating shaft is provided with a second thread, one end of the second rotating arm is connected to the second rotating shaft; a driving member in the shape of a disc is arranged between the first rotating shaft and the second rotating shaft and is engaged with the first thread and the second thread, the driving member has a sliding rail, the distance between the wall surface adjacent to the center of the sliding rail and the center is not equidistant; and a sliding block member includes a resilient element, a sliding column and a connecting rod sliding block, the sliding column is arranged through the sliding rail and can move relatively in the sliding rail, the connecting rod sliding block is connected to both ends of the sliding column, and the resilient element abuts against the connecting rod sliding block to push the connecting rod sliding block towards the driving member, wherein when the driving member rotates to a predetermined angle, the rotational movement of the driving member interferes with the sliding column to enhance the required torque for rotating either of the first rotating shaft and the second rotating shaft.

[0006] In an embodiment of the utility model, a fixing frame is further included, and the first rotating shaft, the second rotating shaft and the resilient element abut against the fixing frame.

[0007] In an embodiment of the utility model, the sliding block member further includes an adjusting screw arranged on the fixing frame, and the resilient element indirectly abuts against the fixing frame through the adjusting screw.

[0008] In an embodiment of the present utility model, the driving member is a idler wheel, the periphery of the idler wheel is surrounded by a toothed portion, the toothed portion engages the first screw thread and the second screw thread.

[0009] In an embodiment of the present utility model, the first rotating member further comprises a first spring sleeve set on the first rotating shaft, and the second rotating member further comprises a second spring sleeve set on the second rotating shaft.

[0010] In an embodiment of the present utility model, the elastic element is a compression spring.

[0011] Therefore, the dual-axle hinge device for enhancing torque at a specific angle can enhance the operation feeling of the rotating shaft at the specific angle. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a perspective view of the dual-axle hinge device for enhancing torque at a specific angle according to an embodiment of the present utility model.

[0013] Figure 2 It is an exploded view of the dual-axle hinge device for enhancing torque at a specific angle according to an embodiment of the present utility model.

[0014] Figure 3A It is a side view of the dual-axle hinge device for enhancing torque at a specific angle according to an embodiment of the present utility model at a 0-degree stage.

[0015] Figure 3B It is a top view along the A-A' section line. Figure 3A

[0016] It is a side view of the dual-axle hinge device for enhancing torque at a specific angle according to an embodiment of the present utility model at a 90-degree stage. Figure 4A

[0017] It is a top view along the B-B' section line. Figure 4B Figure 4A

[0018] Figure 5A It is a side view of the dual-axle hinge device for enhancing torque at a specific angle according to an embodiment of the present utility model at a 180-degree stage.

[0019] Figure 5B It is a top view along the C-C' section line. Figure 5A

[0020] It is a partial enlarged view of the driving member according to an embodiment of the present utility model. Figure 6

[0021] Figure 7 ​​​The angle-torque relationship diagram of the dual-axle hinge device for enhancing the torque at a specific angle according to the embodiment of the present application.

[0022] Reference signs

[0023] 100 dual-axle hinge device for enhancing the torque at a specific angle

[0024] 1 first rotating member

[0025] 11 first rotating shaft

[0026] 111 first thread

[0027] 12 first rotating arm

[0028] 13 first elastic piece

[0029] 2 second rotating member

[0030] 21 second rotating shaft

[0031] 211 second thread

[0032] 22 second rotating arm

[0033] 23 second elastic piece

[0034] 3 driving member

[0035] 31 idler gear

[0036] 311 tooth portion

[0037] 314 slide rail

[0038] 314a wall surface

[0039] 32 housing

[0040] 4 sliding block member

[0041] 41 connecting rod sliding block

[0042] 42 elastic element

[0043] 43 adjusting screw

[0044] 44 slide post

[0045] 5 fixing frame

[0046] A-A' line segment

[0047] B-B' line segment

[0048] C-C' line segment DETAILED DESCRIPTION

[0049] To fully understand the present application, the following specific examples are described in detail, and the accompanying drawings, the purpose, features and effects of the present application can be understood by the disclosure of the present application. It should be noted that the present application can be implemented or applied by other different specific embodiments, and the details in the specification can be modified and changed based on different views and applications without departing from the spirit of the present application. The following embodiments will further illustrate the related technical content of the present application, but the disclosed content is not used to limit the patent application range of the present application. The following is described:

[0050] As shown in Figure 1 and Figure 2 The dual-axle hinge 100 of the present application comprises a first rotating member 1, a second rotating member 2, a driving member 3 and a sliding member 4.

[0051] The first rotating member 1 comprises a first rotating shaft 11 and a first rotating arm 12, and the second rotating member 2 is arranged in parallel with the first rotating member 1. The second rotating member 2 comprises a second rotating shaft 21 and a second rotating arm 22. The first rotating member 1 and the second rotating member 2 are substantially symmetrical structures. The first rotating arm 12 and the second rotating arm 22 are arranged on the base and the upper cover of a device (such as a notebook computer or a folding mobile phone) respectively. When the user opens or closes the base and the upper cover, the first rotating arm 12 and the second rotating arm 22 arranged on the base and the upper cover are also relatively rotated.

[0052] Next, how to make one of the first rotating arm 12 and the second rotating arm 22 rotate synchronously when only one of them is rotated is described.

[0053] As shown in Figure 3B , Figure 4B , Figure 5B The surface of the first rotating shaft 11 is provided with a first thread 111, and one end of the first rotating arm 12 is connected to the first rotating shaft 11. The surface of the second rotating shaft 21 is provided with a second thread 211, and one end of the second rotating arm 22 is connected to the second rotating shaft 21.

[0054] The driving member 3 is in the form of a disc, and is disposed between the first shaft 11 and the second shaft 21 and engaged with the first screw thread 111 and the second screw thread 211. In this embodiment, the driving member 3 is in the form of a freewheel 31, and the two sides of the freewheel 31 are engaged with the first screw thread 111 and the second screw thread 211 respectively. When either the first rotating arm 12 or the second rotating arm 22 rotates, the first shaft 11 / second shaft 21 rotates directly; when either the first shaft 11 or the second shaft 21 rotates, the driving member 3 (freewheel 31) rotates through the first screw thread 111 or the second screw thread 211, and the driving member 3 (freewheel 31) drives the other of the first shaft 11 and the second shaft 21 to rotate. Therefore, as long as either the first rotating arm 12 or the second rotating arm 22 is pulled, the other will rotate accordingly.

[0055] Referring to Figure 6 In order to increase the rotation feeling at a specific angle, that is, to increase the required torque for rotating either the first shaft 11 or the second shaft 21, the driving member 3 (freewheel 31) has a slide rail 314 that penetrates the disc surface of the freewheel 31 and is not connected to the periphery of the freewheel 31. The wall surface 314a adjacent to the center of the slide rail 314 is not equidistant from the center. The slide rail 314 can have a straight line, a spiral, or an arc shape, and in this embodiment, has a spiral shape. In addition, the sliding block member 4 includes a resilient element 42, a slide column 44, and a connecting rod sliding block 41. The resilient element 42 is an element that can store elastic potential energy, such as a spring, and in this embodiment, is a compression spring. The slide column 44 penetrates the slide rail 314 and can move relatively in the slide rail 314, and the connecting rod sliding block 41 connects the two ends of the slide column 44. In detail, one end of the connecting rod sliding block 41 is forked to connect the two ends of the slide column 44, and the other end of the connecting rod sliding block 41 is abutted by the resilient element 42, which continuously pushes the connecting rod sliding block 41 towards the driving member 3 through a pre-pressing force.

[0056] As Figure 3A and Figure 3B shown, in this embodiment, when the included angle between the first rotating arm 12 and the second rotating arm 22 is 0 degrees (the base and the upper cover are closed), the slide column 44 is located at one end of the slide rail 314. When the first rotating arm 12 and the second rotating arm 22 want to increase the angle, the first rotating arm 12 and the second rotating arm 22 are rotated from Figure 3A and Figure 3B to the state shown in Figure 4A and Figure 4B (90 degrees), as shown in Figure 6As shown, the pushing force (upward arrow) of the elastic element 42 to the slide post 44 through the connecting link slider 41 will interfere with the clockwise rotation of the driving member 3 (idler 31), preventing the driving member 3 (idler 31) from rotating. Therefore, a greater torque must be applied to generate a downward component (downward arrow) to overcome the elastic force of the elastic element 42, allowing the slide post 44 to retreat to allow the driving member 3 (idler 31) to rotate. Thus, a special rotation feel can be provided at a specific angle.

[0057] As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44. Figure 4A As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44. Figure 4B As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44. Figure 5A As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44. Figure 5B As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44. As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44.

[0058] As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44. Figure 7 As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44. As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44.

[0059] As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44. As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44.

[0060] As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44. As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44.

[0061] As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44. As shown in FIG. 1, the slide post 44 of the double shaft pivot device 100 is connected to the first rotating shaft 11 and the second rotating shaft 21 through the connecting link slider 41. The elastic element 42 is connected to the connecting link slider 41 and the slide post 44.

[0062] Further, the slider member 4 further comprises an adjusting screw 43, which is arranged on the fixed frame 5, and the elastic element 42 indirectly abuts against the fixed frame 5 through the adjusting screw 43. In detail, one end of the elastic element 42 abuts against the connecting rod slider 41, and the other end abuts against the adjusting screw 43, and the position of the elastic element 42 on the fixed frame 5 is adjusted along the axial direction of the first rotating shaft 11 and the second rotating shaft 21 through the adjusting screw 43, so that the compression degree of the elastic element 42 is changed, and the force on the connecting rod slider 41 is adjusted.

[0063] Further, in the embodiment, the driving member 3 is in the form of a freewheel 31, and the tooth portion 311 of the freewheel 31 engages the first thread 111 and the second thread 211. However, the present application is not limited thereto, and the driving member 3 can also be in other forms. Any mechanism that can transmit power from the first rotating shaft 11 to the second rotating shaft 21 can be used as the driving member 3.

[0064] In addition, as shown in Figs. 1 and 2, the driving member 3 can further comprise a housing 32 to carry the freewheel 31. Figure 1 and Figure 2 In addition, as shown in Figs. 1 and 2, the driving member 3 can further comprise a housing 32 to carry the freewheel 31.

[0065] Further, in the embodiment, the first rotating member 1 further comprises a first spring 13, which is sleeved on the first rotating shaft 11, and the second rotating member 2 further comprises a second spring 23, which is sleeved on the second rotating shaft 21. The first spring 13 and the second spring 23 can provide friction force to maintain a specific angle during rotation of the first rotating member 1 and the second rotating member 2.

[0066] The utility model has been disclosed in the foregoing with an embodiment, but those skilled in the art should understand that the embodiment is only used to depict the utility model and should not be interpreted as limiting the scope of the utility model. It should be noted that any equivalent changes and substitutions of the embodiment should be considered as falling within the scope of the utility model. Therefore, the protection scope of the utility model should be defined by the patent application range.

Claims

1. A dual-axis pivot that enhances torque at a specific angle, characterized in that, The utility model relates to a rotating device, comprising: a first rotating member, including a first rotating shaft and a first rotating arm, the surface of the first rotating shaft is provided with a first thread, one end of the first rotating arm is connected to the first rotating shaft; a second rotating member, arranged in parallel with the first rotating member, including a second rotating shaft and a second rotating arm, the surface of the second rotating shaft is provided with a second thread, one end of the second rotating arm is connected to the second rotating shaft; a driving member, in the shape of a disc, arranged between the first rotating shaft and the second rotating shaft and engaged with the first thread and the second thread, the driving member has a sliding rail, the distance between the wall surface adjacent to the center of the sliding rail and the center is not equidistant; and a sliding block member, including a resilient element, a sliding column and a connecting rod sliding block, the sliding column is arranged through the sliding rail and can move relatively in the sliding rail, the connecting rod sliding block is connected to both ends of the sliding column, the resilient element abuts against the connecting rod sliding block to push the connecting rod sliding block towards the driving member, wherein, when the driving member rotates to a predetermined angle, the rotational movement of the driving member interferes with the sliding column to enhance the required torque for rotating either of the first rotating shaft and the second rotating shaft.

2. The dual axis hinge of claim 1, wherein, Further comprising a fixing frame, the first rotating shaft, the second rotating shaft and the resilient element abut against the fixing frame.

3. The dual axis hinge of claim 2, wherein, The sliding block member further comprises an adjusting screw arranged on the fixing frame, and the resilient element indirectly abuts against the fixing frame through the adjusting screw.

4. The dual axis hinge of claim 1, wherein, The driving member is a idler wheel, the periphery of the idler wheel is surrounded by a toothed portion, and the toothed portion engages the first thread and the second thread.

5. The dual axis hinge of claim 1, wherein, The first rotating member further comprises a first spring sleeve arranged on the first rotating shaft, and the second rotating member further comprises a second spring sleeve arranged on the second rotating shaft.

6. The dual axis hinge of claim 1, wherein, The resilient element is a compression spring.

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