TWM469726U - Synchronous rotatable biaxial hinge - Google Patents

Description

Synchronous rotary biaxial hinge

This creation relates to a biaxial hinge, especially a synchronous rotary biaxial hinge.

Generally, a clamshell electronic device such as a notebook computer, a mobile phone, etc., is provided with a hinge between the screen and the keyboard of the electronic device to connect the screen and the keyboard and provide the torque required when the screen is opened relative to the keyboard. It was first installed on a clamshell electronic device with a single-axis hinge. Although it can pivot the keyboard to the keyboard, it is limited by the design of the screen and keyboard appearance, the screen casing and the keyboard casing. When it is opened to a certain angle, it will interfere with each other and limit the range of angles of opening.

In order to enable the screen housing and the keyboard housing to be flipped to the required angle as desired by the user, the industry has developed a two-axis hinge, as disclosed in the WO 2007/029546 patent publication, which discloses a biaxial hinge device. The two-axis hinge device is connected to the two frames of the electronic device, and mainly adopts a rotating cam to pierce the two switch shafts, and a fixed cam and a spring are arranged on the switch shaft, so that the two single-axis hinges are arranged side by side in an integrated manner. The double-axis hinge device enables the two frames to generate various postures when the two-axis hinge is opened, and increases the degree of freedom of the rotation angle of the two frames when rotating.

However, in the conventional two-axis hinge, the two single-axis hinges are independently rotated. When the user opens the electronic device and opens the screen casing, the two single-axis hinges may be caused by uneven force or hinge torque. The rotation angle is different, which affects the smoothness of opening the screen casing. Even because of the different frequencies and extents of the two single-axis hinges, the two-axis hinge may reduce its life due to overuse of a single hinge.

Many of the linked biaxial hinges, such as the Republic of China No. M326330, M388823, M391012, M392529, M396575, M428642, and M437038, are provided with a gear structure disposed on the two rotating shafts and an additional gear is disposed between the two rotating shafts. The structurally engaged gear set overcomes the aforementioned problems with conventional two-axis hinges. However, these interlocking two-axis hinges, because the complex gear arrangement of the gear set is complicated, requires a relatively precise design to accurately mesh, so that the two rotating shafts can be interlocked with each other, which undoubtedly increases the difficulty in manufacturing and assembly.

The main purpose of this creation is to solve the problem that the traditional double-axis hinges need to add a relatively complicated gear set, which makes the manufacture and assembly of the overall two-axis hinge more difficult, which is not conducive to mass production.

In order to achieve the above object, the present invention provides a synchronous rotary biaxial hinge, comprising a support frame body, a first rotation axis and a second rotation axis disposed on the support frame body and parallel to each other, and a first A connecting rod is connected between the rotating shaft and the second rotating shaft. The support frame body includes a first pivot hole and a second pivot hole. The first rotating shaft is disposed on the first pivoting hole and relatively pivoted relative to the supporting frame body. The first rotating shaft includes a first receiving portion and a first pivoting shaft is disposed on the first rotating shaft. a first gear portion of the first rotating shaft. The second rotating shaft is disposed in the second pivoting hole and relatively pivoted relative to the supporting frame body. The second rotating shaft includes a second receiving portion and a second rotating shaft is disposed on the second rotating shaft a second gear portion of the second rotating shaft. The linkage rod includes a first engaging portion for engaging the first gear portion, a second engaging portion for engaging the second gear portion, and a first engaging portion and the second engaging portion for connecting the first engaging portion a connecting portion that rotates in synchronization with the second engaging portion, whereby the first rotating shaft and the second rotating shaft are correspondingly inverted.

In one embodiment, the synchronous rotary biaxial hinge further includes a fixing frame body corresponding to the supporting frame body to form a receiving space for accommodating the connecting rod. The fixing frame body comprises two blocking walls extending in the direction of the supporting frame body.

In an embodiment, the first engaging portion and the second rod portion are respectively disposed at two ends of the interlocking rod with the interlocking rod as an axis. The diameters of the first engaging portion and the second engaging portion are respectively reduced toward the corresponding end portions.

In an embodiment, the first rotating shaft includes a first shaft connected to the first receiving portion, and the first gear portion includes a first through hole for the first shaft to pass through, the first through hole and the first through hole The first shafts respectively have a first limiting wall and a first engaging ridge corresponding to each other to prevent the first gear portion from rotating relative to the first shaft.

In an embodiment, the second rotating shaft includes a second shaft connected to the second receiving portion, and the second gear portion includes a second through hole for the second shaft to pass through, the second through hole and the second through hole The second shafts respectively have a second limiting wall and a second engaging ridge corresponding to each other to prevent the second gear portion from rotating corresponding to the second shaft.

In an embodiment, the first rotating shaft includes a first torsion adjusting portion, and the second rotating shaft includes a second torsion adjusting portion.

In an embodiment, the diameter of the first gear portion decreases toward the first meshing portion.

In an embodiment, the diameter of the second gear portion decreases toward the second meshing portion.

The present synchronous rotary biaxial hinge uses only a linkage rod having a meshing gear structure at both ends thereof, so that the first rotation shaft and the second rotation shaft can be rotated synchronously, so that no precise design such as a conventional interlocking double shaft is required. The hinge needs to add a gear set with a plurality of gear combinations, so that the overall two-axis hinge structure is quite simple, which facilitates assembly and production, and also makes the first rotating shaft and the second rotating shaft reversely move relatively smoothly.

10‧‧‧Support frame

11‧‧‧First pivot hole

12‧‧‧Second pivot hole

20‧‧‧First axis of rotation

21‧‧‧First Undertaking

22‧‧‧First gear department

221‧‧‧ first perforation

222‧‧‧First limit wall

23‧‧‧First Torque Adjustment Department

24‧‧‧First shaft

241‧‧‧ First card contract

30‧‧‧second axis of rotation

31‧‧‧Second Undertaking

32‧‧‧Second gear department

321‧‧‧Second perforation

322‧‧‧Second wall

33‧‧‧Second Torque Adjustment Department

34‧‧‧Second shaft

341‧‧‧Second card

40‧‧‧ linkage rod

41‧‧‧First meshing section

42‧‧‧Second joint

43‧‧‧Connecting Department

50‧‧‧Fixed frame

51‧‧‧Blocking wall

60‧‧‧ Included space

FIG. 1 is a perspective view showing the appearance of an embodiment of a synchronous rotary biaxial hinge according to the present invention.

2 is a structural exploded view of an embodiment of a synchronous rotary biaxial hinge according to the present invention.

FIG. 3-1 to FIG. 3-3 are schematic diagrams showing the operation flow of an embodiment of the synchronous rotary biaxial hinge of the present invention.

The detailed description and technical content of this creation are as follows:

Please refer to FIG. 1 and FIG. 2 , which are schematic diagrams showing the appearance and structure of the embodiment of the present invention. As shown in the figure, the present invention is a synchronous rotary biaxial hinge mainly comprising a support frame 10 . a first rotating shaft 20 and a second rotating shaft 30 that are parallel to each other and respectively mounted on the supporting frame body 10, and a linkage between the first rotating shaft 20 and the second rotating shaft 30 Rod 40. The support frame body 10 includes a first pivot hole 11 and a second pivot hole 12 . The first rotating shaft 20 is disposed in the first pivoting hole 11 , and the second rotating shaft 30 is disposed in the second pivoting hole 12 . The first rotating shaft 20 and the second rotating shaft 30 are respectively opposite to the second rotating shaft 30 . The support frame 10 pivots. The first rotating shaft 20 includes a first receiving portion 21, a first gear portion 22 pivotally disposed on the first rotating shaft 20 with the first rotating shaft 20 as an axis, and a first rotating shaft 20 is provided. The first torsion adjusting portion 23 that pivots the torsion relative to the support frame body 10. The second rotating shaft 30 includes a second receiving portion 31. The second rotating shaft 30 is axially disposed on the second gear portion 32 of the second rotating shaft 30, and a second rotating shaft 30 is provided. The second torsion adjusting portion 33 that pivots the torsion relative to the support frame body 10. The first receiving part 21 and the second receiving part 31 are respectively fixed to the display screen of the portable electronic device and the base host, and the present invention is applied to a portable electronic device (such as a notebook computer). .

In the present invention, the linkage rod 40 disposed between the first rotating shaft 20 and the second rotating shaft 30 includes a first engaging portion 41 that engages the first gear portion 22, and engages the second gear. The second engaging portion 42 of the portion 32 and a connecting portion 43 connecting the first engaging portion 41 and the second engaging portion 42 to rotate the first engaging portion 41 and the second engaging portion 42 in synchronization. The first meshing portion 41 and the second meshing portion 42 are respectively disposed at the two end portions of the interlocking lever 40 with the interlocking lever 40 as an axis.

The first gear portion 22 of the first rotating shaft 20 and the second gear portion 32 of the second rotating shaft 30 can be coupled to the first engaging portion 41 and the second engaging portion 32 of the interlocking lever 40. The diameter of the first gear portion 22 and the second gear portion 32 are reduced toward the first engaging portion 41 and the second engaging portion 42 to form a bevel gear structure, and the interlocking rod 40 is formed. The diameters of the first engaging portion 41 and the second engaging portion 42 are respectively reduced toward the opposite ends of the interlocking rod 40, so that the interlocking rod 40 forms a shuttle-like structure.

Furthermore, in the present embodiment, the present invention also includes a fixed frame body 50 that is combined with the support frame body 10 to form a receiving space 60 for accommodating the interlocking rod 40. The fixing frame body 50 includes two blocking walls 51 extending in the direction of the supporting frame body 10. In this manner, the linkage rod 40 is rotatably coupled to the first rotating shaft 20 and the second rotating shaft 30 in the receiving frame body 10 and the receiving space 60 of the fixing frame body 50.

In the present invention, the first rotating shaft 20 includes a first shaft 24 connected to the first receiving portion 21, and the first gear portion 22 includes a first through hole 221 for the first shaft 24 to pass through. The first through hole 221 and the first shaft 24 respectively have a first limiting wall 222 and a first engaging ring 241 corresponding to each other to prevent the first gear portion 22 from rotating relative to the first shaft 24 . The second rotating shaft 30 includes a second shaft 34 connected to the second receiving portion 31. The second gear portion 32 includes a second through hole 321 for the second shaft 34 to pass through. The second shaft 34 has a second limiting wall 322 and a second engaging jaw 341 respectively corresponding to each other to prevent the second gear portion 32 from rotating relative to the second shaft 34.

Please refer to FIG. 3-1 to FIG. 3-3, which is a schematic diagram of the operation flow of an embodiment of the synchronous rotary biaxial hinge of the present invention, as shown in the figure: in the initial state, the first rotating shaft 20 The first receiving portion 21 and the second receiving portion 31 of the second rotating shaft 30 are parallel to each other, as shown in FIG. 3-1. The first shaft 24 of the first rotating shaft 20 and the first gear portion 22 fixed to the first shaft 24 rotate counterclockwise when an upward turning force is applied to the first receiving portion 21 As shown in Figure 3-2. At this time, the first engaging portion 41 of the interlocking lever 40 engaged with the first gear portion 22 is also rotated from right to left. Since the first engaging portion 41 and the second engaging portion 42 are connected to each other through the connecting portion 34, the second engaging portion 42 is rotated from the right to the left in synchronization with the first engaging portion 41. Therefore, the second gear portion 32 of the second rotating shaft 30 and the second rotating shaft 34 that mesh with the second engaging portion 42 are rotated in a clockwise direction, so that the second receiving portion 31 is rotated downward. As the angle at which the first receiving portion 21 is rotated upward, the second receiving portion 31 is turned down at the same opening angle. Conversely, when a downward turning force is applied to the one of the joint portions 21, the first shaft 24 of the first rotating shaft 20 and the first gear portion 22 fixed to the first shaft 24 Rotate clockwise as shown in Figure 3-3. At this time, the first engaging portion 41 of the interlocking lever 40 engaged with the first gear portion 22 is also rotated from left to right. Since the first engaging portion 41 and the second engaging portion 42 are connected to each other through the connecting portion 34, the second engaging portion 42 is rotated from left to right in synchronization with the first engaging portion 41. Therefore, the second gear portion 32 of the second rotating shaft 30 and the second rotating shaft 34 that mesh with the second engaging portion 42 are rotated in a counterclockwise direction, so that the second receiving portion 31 is rotated upward. As the angle at which the first receiving portion 21 is rotated downward is larger, the second receiving portion 31 is turned up at a speed of the same opening angle.

The present synchronous rotary biaxial hinge uses only a linkage rod having a meshing gear structure at both ends thereof, so that the first rotation shaft and the second rotation shaft can synchronously rotate at the same speed. Compared with the traditional interlocking two-axis hinge, it is necessary to add a gear set with a plurality of gear combinations. The overall two-axis hinge structure of the present invention is quite simple, which is convenient for assembly and production, and can also enable the first rotating shaft and the second rotation. The flipping of the shaft is smooth and stable.

The above description has been made in detail, but the above is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the creation of the creation, that is, the equality of the patent application scope according to the present creation. Changes and modifications are still covered by the patents of this creation.

10‧‧‧Support frame

11‧‧‧First pivot hole

12‧‧‧Second pivot hole

20‧‧‧First axis of rotation

21‧‧‧First Undertaking

22‧‧‧First gear department

221‧‧‧ first perforation

222‧‧‧First limit wall

23‧‧‧First Torque Adjustment Department

24‧‧‧First shaft

241‧‧‧ First card contract

30‧‧‧second axis of rotation

31‧‧‧Second Undertaking

32‧‧‧Second gear department

321‧‧‧Second perforation

322‧‧‧Second wall

33‧‧‧Second Torque Adjustment Department

34‧‧‧Second shaft

341‧‧‧Second card

40‧‧‧ linkage rod

41‧‧‧First meshing section

42‧‧‧Second joint

43‧‧‧Connecting Department

50‧‧‧Fixed frame

51‧‧‧Blocking wall

Claims (10)

A synchronous rotary biaxial hinge includes:
a support frame body includes a first pivot hole and a second pivot hole;
a first rotating shaft is disposed on the first pivoting hole and relatively pivoted relative to the supporting frame body, the first rotating shaft includes a first receiving portion and a ring centered on the first rotating shaft a first gear portion of the first rotating shaft;
a second rotating shaft parallel to the first rotating shaft and passing through the second pivoting hole and relatively pivoting relative to the supporting frame body, the second rotating shaft includes a second receiving portion and a second a rotating shaft is a second gear portion of the second rotating shaft; and an interlocking rod is disposed between the first rotating shaft and the second rotating shaft, and includes a first meshing portion An engaging portion, a second engaging portion that engages the second gear portion, and a connecting portion that connects the first engaging portion and the second engaging portion to rotate the first engaging portion and the second engaging portion synchronously The first rotating shaft is correspondingly inverted in conjunction with the second rotating shaft.
The synchronous rotary biaxial hinge according to claim 1, further comprising a fixing frame body corresponding to the supporting frame body to form a receiving space for accommodating the connecting rod.
The synchronous rotary biaxial hinge according to claim 2, wherein the fixing frame body comprises a blocking wall extending in the direction of the supporting frame body.
The synchronous rotary biaxial hinge according to claim 1, wherein the first engaging portion and the second engaging portion are respectively disposed at two ends of the interlocking rod with the interlocking rod as an axis.
The synchronous rotary biaxial hinge according to claim 4, wherein the diameters of the first engaging portion and the second engaging portion are respectively decreased toward the corresponding end portions.
The synchronous rotary biaxial hinge according to claim 1, wherein the first rotating shaft includes a first shaft connected to the first receiving portion, and the first gear portion includes a first shaft for wearing And a first through hole, the first through hole and the first shaft respectively have a first limiting wall and a first engaging ridge corresponding to each other to prevent the first gear portion from rotating relative to the first shaft.
The synchronous rotary biaxial hinge according to claim 1, wherein the second rotating shaft includes a second shaft connected to the second receiving portion, and the second gear portion includes a second shaft for wearing And a second through hole, the second through hole and the second shaft respectively have a second limiting wall and a second engaging ridge corresponding to each other to prevent the second gear portion from rotating the second shaft.
The synchronous rotary biaxial hinge according to Item 1, wherein the first rotating shaft includes a first torsion adjusting portion, and the second rotating shaft includes a second torsion adjusting portion.
The synchronous rotary biaxial hinge according to claim 1, wherein the diameter of the first gear portion decreases toward the first meshing portion.
The synchronous rotary biaxial hinge according to claim 1, wherein the diameter of the second gear portion decreases toward the second engaging portion.