Sequential switching dual-shaft hinge roller-type switching motion mechanism

Abstract

Provided is a sequential switching dual-shaft hinge roller-type switching motion mechanism, comprising a first shaft (11) and a second shaft (12). The roller-type switching motion mechanism comprises: one or more sets of cams (21, 22; 23, 24), each set of cams (21, 22; 23, 24) comprising first cams (21, 23) connected to and rotating synchronously with the first shaft (11) and second cams (22, 24) connected to and rotating synchronously with the second shaft (12); and further comprises connecting frames (41, 42), two ends of the connecting frames (41, 42) being rotatably connected to the first shaft (11) and the second shaft (12). One or more transition wheels (3) are provided between the first cams (21, 23) and the second cams (22, 24) of one set of cams, and one or more transition wheels (3) are configured to be controlled by the first cams (21, 23) and the second cams (22, 24) in one set of cams (21, 22; 23, 24) to lock the first cams (21, 23) or unlock the first cams (21, 23). The transition wheels (3) are slidably and rotatably mounted on the connecting frames (41, 42), and the connecting frames (41, 42) are provided with sliding limiting grooves (5) for the transition wheels (3), in order to adaptively cushion, so as to eliminate the sense of jerking when the sequential switching dual-shaft hinge switches between locking and unlocking, thereby improving the user experience.

Description

Sequential switching dual-axis hinge roller type switching motion mechanism Technical Field

[0001] This invention relates to hinges for portable mobile terminals, such as hinges for laptops, flip phones, etc., and hinges for mobile terminal stands. Background Technology

[0002] Some laptops use a dual-axis hinge, where the upper hinge connects to the screen housing and the lower hinge connects to the main unit. In some dual-axis hinges, the upper and lower hinges rotate synchronously in opposite directions. Other dual-axis hinges require sequential switching of rotation. Currently, this switching is achieved by locking and unlocking through a slider that can move between two cams that are synchronized with the upper and lower hinges respectively. This structure produces a jerky feeling when switching between locking and unlocking, affecting the user experience. Summary of the Invention

[0003] The purpose of this invention is to provide a sequential switching dual-axis hinged roller type switching motion mechanism to solve the jerking sensation during switching in the prior art. To this end, this invention adopts the following technical solution:

[0004] A sequential switching dual-axis hinged roller-type switching motion mechanism includes a first axis and a second axis. The roller-type switching motion mechanism includes one or more sets of cams. The same set of cams includes a first cam connected to the first axis and rotating synchronously, and a second cam connected to the second axis and rotating synchronously. The roller-type switching motion mechanism also includes a connecting frame, both ends of which are rotatably connected to the first axis and the second axis. The mechanism is characterized in that one or more ferry wheels are provided between the first cam and the second cam in the same set of rollers. The one or more ferry wheels are used to lock or unlock the first cam according to the control of the first cam and the second cam in the same set of cams. The ferry wheels are slidably and rotatably mounted on the connecting frame, and the connecting frame is provided with sliding limit grooves for the ferry wheels.

[0005] Based on the above technical solutions, the present invention may also employ the following further technical solutions, or combine these further technical solutions:

[0006] The number of ferries set between the first and second cams in the same group of cams is two or more, an even number.

[0007] The connecting frame includes a front connecting frame and a rear connecting frame, both of which are provided with ferry sliding limit grooves. The front connecting frame and the rear connecting frame are respectively located on both sides of the ferry. Guide shafts are respectively provided on both sides of the ferry, and the guide shafts are slidably connected to the ferry sliding limit grooves.

[0008] The first cam and the second cam are respectively fitted onto the first shaft and the second shaft, and rotate synchronously with the first shaft and the second shaft through a flat fit.

[0009] The first cam has a cylindrical surface and a groove for locking, and the second cam has a first cylindrical surface corresponding to the first cam in the locked state; when the ferry engages with the groove, the first cam is locked, and the connecting frame is synchronized with the first cam; when the ferry engages with the cylindrical surface of the first cam, the first cam is in the unlocked state, and the connecting frame and the first cam can rotate relative to each other.

[0010] When multiple sets of cams are provided, the second cam has a second cylindrical surface corresponding to the unlocked state of the first cam and a rotation limit that cooperates with the ferry. The diameter of the second cylindrical surface is smaller than the diameter of the first cylindrical surface.

[0011] The sequential switching dual-axis hinge is applied to a laptop computer, where the first axis is connected to the laptop's screen housing and the second axis is connected to the laptop's main unit.

[0012] With the closed state as a reference state, the first axis is the upper axis, the second axis is the lower axis, the first cam is the upper cam, and the second axis is the lower cam.

[0013] Because of the technical solution of this invention, the ferry can adaptively buffer and eliminate the jerking sensation when switching between locking and unlocking the sequential switching dual-axis hinge, thus improving the user experience. Attached Figure Description

[0014] Figure 1 is a schematic diagram of an embodiment of the present invention.

[0015] Figure 2 is an exploded view of the structure of an embodiment of the present invention.

[0016] Figure 3 is a schematic diagram of the dual-axis sequential switching process during the opening process of an embodiment of the present invention.

[0017] Figure 4 is a schematic diagram illustrating the dual-axis sequential switching process during hinge opening, using the AA and BB cross-sections of Figure 1 during various rotational switching operations, according to an embodiment of the present invention. The left column shows the AA cross-section, and the right column shows the BB cross-section. Detailed Implementation

[0018] Referring to the accompanying drawings, the sequential switching dual-axis hinged roller type switching motion mechanism provided by the present invention includes an upper shaft 11 and a lower shaft 12. The roller type switching motion mechanism includes one or more sets of cams; in this embodiment, two sets of cams are provided.

[0019] The same set of cams includes an upper cam that is connected to the upper shaft 11 and rotates synchronously, and a lower cam that is connected to the lower shaft 12 and rotates synchronously. Reference numerals 21 and 22 are the upper and lower cams of the first set of cams, respectively. Reference numerals 23 and 24 are the upper and lower cams of the second set of cams, respectively. Each set of cams can provide one locking and unlocking switch, and the two sets of cams can provide two locking and unlocking switches.

[0020] One or more ferry wheels 3 are provided between the upper and lower cams of the same set of rollers, as shown in Figure 4. The one or more ferry wheels are used to lock or unlock the upper cam according to the control of the upper and lower cams in the same set of cams.

[0021] The roller-type switching motion mechanism also includes a connecting frame, which comprises a front connecting frame 41 and a rear connecting frame 42, both of which are provided with ferry sliding limit grooves 5 to define the movement trajectory of the ferry 3. The front connecting frame 41 and the rear connecting frame 42 are respectively located on both sides of the ferry 3. Guide shafts 31 are respectively provided on both sides of the ferry 3, and the guide shafts 31 are slidably connected to the ferry sliding limit grooves 5. The ferry 3 is slidably and rotatably mounted on the connecting frame. The two ends of the front connecting frame 41 and the rear connecting frame 42 are rotatably connected to the upper shaft 11 and the lower shaft 12, respectively.

[0022] Preferably, the number of ferries arranged between the upper and lower cams of the same set of cams is an even number, with two ferries being more preferred.

[0023] The upper cams 21 and 23 are fitted onto the upper shaft 11 and connected to it via a flat fit, rotating synchronously. The lower cams 22 and 24 are fitted onto the lower shaft 12 and connected to it via a flat fit, rotating synchronously.

[0024] The upper cams 21 and 23 have cylindrical surfaces 91 and locking grooves 92. The lower cams 22 and 24 have a first cylindrical surface 95 corresponding to the locked state of the upper cam, a second cylindrical surface 93 corresponding to the unlocked state of the upper cam, and a rotation limit 94 that cooperates with the ferry. The diameter of the second cylindrical surface 93 is smaller than the diameter of the first cylindrical surface 95. When the ferry 3 cooperates with the groove 92 of the upper cam 21 or upper cam 23, the connecting brackets 41 and 42 are synchronized with the corresponding upper cam 21 or upper cam 23 to lock the corresponding upper cam 21 or upper cam 23. When the ferry 3 cooperates with the cylindrical surface 91 of the upper cam 21 or upper cam 23, the corresponding upper cam 21 or upper cam 23 is in the unlocked state, and the connecting brackets 41 and 42 can rotate relative to the corresponding upper cam 21 or upper cam 23.

[0025] The sequential switching dual-axis hinge is applied to a laptop computer. The upper hinge 11 is connected to the laptop's screen housing, and the lower hinge 12 is connected to the laptop's main body (i.e., the body where the keyboard is located). Reference numeral 71 indicates the part of the upper hinge used to connect to the laptop's screen housing, and reference numeral 72 indicates the part used to connect to the connecting bracket 8 of the laptop's main body.

[0026] The reference numerals 61 and 62 are the torque mechanisms installed on the upper and lower shafts, respectively.

[0027] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the protection scope of the present invention.

[0028] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "installed," "set," "equipped with," "connected," "connected," and "sleeve-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral construction; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] In the description of this invention, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

Claims

1. A sequential switching dual-axis hinged roller-type switching motion mechanism, comprising a first axis and a second axis, wherein the roller-type switching motion mechanism comprises one or more sets of cams, the same set of cams comprising a first cam connected to the first axis and rotating synchronously therewith, and a second cam connected to the second axis and rotating synchronously therewith; the roller-type switching motion mechanism further comprises a connecting frame, both ends of which are rotatably connected to the first axis and the second axis; characterized in that, One or more ferries are provided between the first cam and the second cam of the same set of rollers. The one or more ferries are used to lock or unlock the first cam according to the control of the first cam and the second cam in the same set of rollers. The ferries are slidably and rotatably mounted on the connecting frame, and the connecting frame is provided with sliding limit grooves for the ferries.

2. The sequential switching dual-axis hinged roller type switching motion mechanism as described in claim 1, characterized in that, The number of ferries set between the first and second cams in the same group of cams is two or more, an even number.

3. The sequential switching dual-axis hinged roller type switching motion mechanism as described in claim 1, characterized in that, The connecting frame includes a front connecting frame and a rear connecting frame, both of which are provided with ferry sliding limit grooves. The front connecting frame and the rear connecting frame are respectively located on both sides of the ferry. Guide shafts are respectively provided on both sides of the ferry, and the guide shafts are slidably connected to the ferry sliding limit grooves.

4. The sequential switching dual-axis hinged roller type switching motion mechanism as described in claim 1, characterized in that, The first cam and the second cam are respectively fitted onto the first shaft and the second shaft, and rotate synchronously with the first shaft and the second shaft through a flat fit.

5. The sequential switching dual-axis hinged roller type switching motion mechanism as described in claim 1, characterized in that, The first cam has a cylindrical surface and a groove for locking, and the second cam has a first cylindrical surface corresponding to the first cam in the locked state; when the ferry engages with the groove, the first cam is locked, and the connecting frame is synchronized with the first cam; when the ferry engages with the cylindrical surface of the first cam, the first cam is in the unlocked state, and the connecting frame and the first cam can rotate relative to each other.

6. The sequential switching dual-axis hinged roller type switching motion mechanism as described in claim 1, characterized in that, When multiple sets of cams are provided, the second cam has a second cylindrical surface corresponding to the unlocked state of the first cam and a rotation limit that cooperates with the ferry. The diameter of the second cylindrical surface is smaller than the diameter of the first cylindrical surface.

7. The sequential switching dual-axis hinged roller type switching motion mechanism as described in claim 1, characterized in that, The sequential switching dual-axis hinge is applied to a laptop computer, where the first axis is connected to the laptop's screen housing and the second axis is connected to the laptop's main unit.

8. The sequential switching dual-axis hinged roller type switching motion mechanism as described in claims 1, 2, 3, 4, 5, 6, or 7, characterized in that, With the closed state as a reference state, the first axis is the upper axis, the second axis is the lower axis, the first cam is the upper cam, and the second axis is the lower cam.

Images