TWM668314U - Double axis pivot with locking function - Google Patents

Abstract

A double-axis hinge with a locking function comprises: a first rotating member, a second rotating member, a driving member and a slider member, wherein the surface of the first rotating shaft of the first rotating member is provided with a first thread, the second rotating member is arranged parallel to the first rotating member, the surface of the second rotating shaft of the second rotating member is provided with a second thread, the driving member is engaged with the first thread and the second thread, the slider member comprises an elastic element and a push slider, the elastic element abuts against the push slider to push the push slider toward the driving member, and the driving member further comprises a receiving portion, when the driving member rotates to a predetermined angle, the push slider enters the receiving portion and interferes with the driving member. The double-axis pivot with locking function of this creation can provide locking force at a specific angle.

Description

Double axis pivot with locking function

This invention relates to a double-axis hinge, and more particularly to a double-axis hinge with a locking function.

Devices such as notebook computers and foldable mobile phones have a structure of a cover and a base that can be opened relative to each other, and their operation method is to drive the cover and the base to open relative to each other through a double-axis hinge.

The current dual-axis hinges are unable to provide a locking function at a specific opening angle; as a result, it is difficult for a device using such dual-axis hinges to maintain a specific opening angle or provide a locking force at a certain angle.

Therefore, in order to solve various problems of the known double-axis hinge, this invention proposes a double-axis hinge with a locking function.

To achieve the above-mentioned and other purposes, the invention proposes a double-axis hinge with a locking function, 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, and 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, the second rotating member comprises a second rotating shaft and a second rotating arm, the surface of the second rotating shaft is provided with a second thread, the second rotating arm One end of the rotating arm is connected to the second rotating shaft; a driving member is arranged between the first rotating shaft and the second rotating shaft and is engaged with the first thread and the second thread; and a slider member includes an elastic element and a push slider, the elastic element abuts against the push slider to push the push slider toward the driving member, wherein the driving member also has a receiving portion, when the driving member rotates to a predetermined angle, the push slider enters the receiving portion and interferes with the driving member.

In an embodiment of the present invention, a fixing frame is further included, and the first rotating shaft, the second rotating shaft and the elastic element are abutted against the fixing frame.

In one embodiment of the present invention, the slider assembly further includes an adjusting screw disposed on the fixing frame, and the elastic element indirectly abuts against the fixing frame through the adjusting screw.

In one embodiment of the present invention, the driving component is an idler wheel, and a tooth portion engaging with the first thread and the second thread is provided on the periphery of the idler wheel, and the receiving portion is provided in the notch of the tooth portion.

In an embodiment of the present invention, the first rotating component further includes a first elastic sheet mounted on the first rotating shaft, and the second rotating component further includes a second elastic sheet mounted on the second rotating shaft.

In one embodiment of the present invention, the elastic element is a compression spring.

In one embodiment of the present invention, the receiving portion is recessed inward from the periphery of the driving component.

Thereby, the double-axis hinge with locking function of the invention can provide locking force at a specific angle.

In order to fully understand the present invention, the present invention is described in detail through the following specific implementation examples and the attached drawings. Technical personnel in this field can understand the purpose, characteristics and effects of the present invention from the contents disclosed in this manual. It should be noted that the present invention can be implemented or applied through other different specific implementation examples, and the various details in this manual can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention. The following implementation method will further explain the relevant technical content of the present invention in detail, but the disclosed content is not used to limit the scope of the patent application for the present invention. The explanation is as follows:

As shown in FIG. 1 and FIG. 2 , the double-axis hinge 100 with a locking function of the present invention embodiment includes a first rotating component 1, a second rotating component 2, a driving component 3 and a sliding block component 4.

The first rotating member 1 includes a first rotating shaft 11 and a first rotating arm 12. The second rotating member 2 is arranged in parallel with the first rotating member 1. The second rotating member 2 includes 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 used to be respectively arranged on the base and the upper cover of a device (such as a laptop or a foldable mobile phone). When the user opens the base and the upper cover relative to each other, the first rotating arm 12 and the second rotating arm 22 respectively arranged on the base and the upper cover also rotate relative to each other.

Next, it will be described how to rotate only one of the first rotating arm 12 and the second rotating arm 22 while making the other one rotate synchronously.

As shown in FIG3B , FIG4B , and FIG5B , a first thread 111 is provided on the surface of the first rotating shaft 11 , and one end of the first rotating arm 12 is connected to the first rotating shaft 11 . A second thread 211 is provided on the surface of the second rotating shaft 21 , and one end of the second rotating arm 22 is connected to the second rotating shaft 21 .

The driving member 3 is disposed between the first rotating shaft 11 and the second rotating shaft 21 and is engaged with the first thread 111 and the second thread 211. Specifically, in this embodiment, the driving member 3 is in the form of an idler wheel 31, and a tooth portion 311 engaged with the first thread 111 and the second thread 211 is provided on the periphery of the idler wheel 31. When either the first rotating arm 12 or the second rotating arm 22 rotates, the first rotating shaft 11/the second rotating shaft 21 will be directly driven to rotate about the axis; when either the first rotating shaft 11 or the second rotating shaft 21 rotates, it drives the component 3 (idler wheel 31) to rotate via the first thread 111 or the second thread 211, and the driving component 3 (idler wheel 31) drives the other of the first rotating shaft 11 and the second rotating 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 also rotate accordingly.

In order to increase the locking force at a specific angle, the slider member 4 includes an elastic element 42 and a push slider 41. The elastic element 42 is, for example, an element that can store elastic potential energy, such as a spring, and is a compression spring in this embodiment. The elastic element 42 abuts against the push slider 41, and the push slider 41 is continuously pushed toward the driving member 3 through the pre-stress of the elastic element. Correspondingly, the driving member 3 also has a receiving portion 313, which is arranged in the notch of the tooth portion 311 and is recessed inward (rotation center) from the periphery of the driving member 3. When the driving member 3 rotates to a predetermined angle, the push slider 41 enters the receiving portion 313 from the periphery of the driving member 3 and interferes with the driving member 3.

As shown in FIG. 3A and FIG. 3B , in this embodiment, when the 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 receiving portion 313 is directly opposite to the push slider 41, so the push slider 41 enters the receiving portion 313 and drives the component 3 to interfere. In this state, a greater force is required to push the push slider 41 out of the receiving portion 313, so a greater locking force can be provided at 0 degrees compared to other angles.

As shown in FIG. 4A and FIG. 4B , when the external force overcomes the force of the push slider 41 and the elastic element 42 , the receiving portion 313 no longer faces the push slider 41 , driving the component 3 to rotate smoothly.

As shown in FIG. 5A and FIG. 5B , in the stage from 90 degrees to 180 degrees, there is no interference between the push slider 41 and the receiving portion 313.

In summary, the position, range, and number of the receiving portion 313 can be set to achieve the function of requiring more force to continue rotating at a specific angle. For example, in this embodiment, the receiving portion 313 is set at a position corresponding to the 0 degree angle of the two rotating arms to prevent the device from opening unexpectedly. However, it can also be set at a position of 90 degrees or 180 degrees so that the device can be fixed at a specific angle; or, multiple receiving portions 313 can be set to provide locking force at different angles.

In addition, the receiving portion 313 of the present embodiment is shaped so that interference with the push slider 41 can be released by adding an external force in the same direction as the operation. However, the present invention is not limited thereto, and the receiving portion can also be shaped so that once interference occurs, it enters a locked state (cannot be released by adding an external force in the same direction as the operation), and can only be released by disassembling or triggering a specific unlocking mechanism.

Furthermore, in this embodiment, the dual-axis hinge 100 with a locking function further includes a fixing frame 5, and the first rotating shaft 11, the second rotating shaft 21 and the elastic element 42 abut against the fixing frame 5. The fixing frame 5 serves as an anchor point for fixing the first rotating shaft 11, the second rotating shaft 21 and the elastic element 42.

Furthermore, the slider member 4 further includes an adjusting screw 43 disposed on the fixing frame 5, and the elastic element 42 indirectly abuts against the fixing frame 5 through the adjusting screw 43. Specifically, one end of the elastic element 42 abuts against the push slider 41, and the other end abuts against the adjusting screw 43, and by adjusting the position of the adjusting screw 43 on the fixing frame 5 along the axial direction of the first rotating shaft 11 and the second rotating shaft 21, the compression degree of the elastic element 42 can be changed, thereby adjusting the stacking force on the push slider 41.

Furthermore, in this embodiment, the driving member 3 is in the form of an idler wheel 31, and the receiving portion 313 is disposed in the notch of the tooth portion 311 and is recessed inward from the periphery of the driving member 3. However, the present invention is not limited thereto, and the receiving portion 313 may be disposed at other positions, and the driving member 3 may also be in the form of other structures. Any mechanism that can transmit from the first rotating shaft 11 to the second rotating shaft 21 may be used as the driving member 3.

In addition, as shown in FIG. 1 and FIG. 2 , the driving component may further include a housing 32 to carry the idler wheel 31 .

Furthermore, in this embodiment, the first rotating member 1 further includes a first elastic sheet 13, which is sleeved on the first rotating shaft 11; the second rotating member 2 further includes a second elastic sheet 23, which is sleeved on the second rotating shaft 21. The first elastic sheet 13 and the second elastic sheet 23 can provide friction force to maintain a specific angle during the rotation of the first rotating member 1 and the second rotating member 2.

The present invention has been disclosed in the above by way of an embodiment, but those skilled in the art should understand that the embodiment is only used to describe the present invention and should not be interpreted as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to the embodiment should be included in the scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to that defined by the scope of the patent application.

100: Double-axis pivot with locking function 1: First rotating member 11: First rotating shaft 111: First thread 12: First rotating arm 13: First spring 2: Second rotating member 21: Second rotating shaft 211: Second thread 22: Second rotating arm 23: Second spring 3: Driving member 31: Idle wheel 311: Tooth 313: Receiving part 32: Housing 4: Slider member 41: Push slider 42: Elastic element 43: Adjusting screw 5: Fixed frame A-A’: Line segment B-B’: Line segment C-C’: Line segment

FIG. 1 is a three-dimensional schematic diagram of a double-axis hinge with a locking function according to an embodiment of the present invention. FIG. 2 is an exploded view of a double-axis hinge with a locking function according to an embodiment of the present invention. FIG. 3A is a side view schematic diagram of a double-axis hinge with a locking function at a 0-degree stage according to an embodiment of the present invention. FIG. 3B is a top view schematic diagram along the A-A’ section line of FIG. 3A. FIG. 4A is a side view schematic diagram of a double-axis hinge with a locking function at a 90-degree stage according to an embodiment of the present invention. FIG. 4B is a top view schematic diagram along the B-B’ section line of FIG. 4A. FIG. 5A is a schematic side view of a double-axis hinge with a locking function at a 180-degree stage according to an embodiment of the present invention. FIG. 5B is a schematic top view along the C-C’ section line of FIG. 5A .

100: Double-axis pivot with locking function

1: First rotating component

11: First axis

111: First thread

12: First rotating arm

13: The first shrapnel

2: Second rotating component

21: Second axis

211: Second thread

22: Second rotating arm

23: Second shrapnel

3: Driving components

4: Slider components

41: Push the slider

42: Elastic element

43: Adjustment screw

5: Fixed bracket

Claims (7)

A double-axis hinge with a locking function, 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, and 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, 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, and one end of the second rotating arm is connected to the second rotating shaft; a driving member, arranged between the first rotating shaft and the second rotating shaft and engaged with the first thread and the second thread; and A slider member includes an elastic element and a push slider, wherein the elastic element abuts against the push slider to push the push slider toward the driving member, wherein the driving member also has a receiving portion, and when the driving member rotates to a predetermined angle, the push slider enters the receiving portion and interferes with the driving member. The double-axis hinge with locking function as described in claim 1 further includes a fixing frame, and the first rotating shaft, the second rotating shaft and the elastic element abut against the fixing frame. A double-axis pivot with a locking function as described in claim 2, wherein the slider assembly further includes an adjusting screw disposed on the fixing frame, and the elastic element indirectly abuts against the fixing frame through the adjusting screw. A double-axis pivot with a locking function as described in claim 1, wherein the driving component is an idler wheel, and a tooth portion engaging with the first thread and the second thread is provided on the periphery of the idler wheel, and the receiving portion is provided in the notch of the tooth portion. The double-axis hinge with locking function as described in claim 1, wherein the first rotating component further includes a first spring plate mounted on the first rotating shaft, and the second rotating component further includes a second spring plate mounted on the second rotating shaft. A double-axis pivot with locking function as described in claim 1, wherein the elastic element is a compression spring. A double-axis hinge with a locking function as described in claim 1, wherein the receiving portion is recessed inward from the periphery of the driving component.

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