TWM487374U - Hinge assembly with interlinked gears - Google Patents

Description

Pivot assembly with interlocking gear set

The present invention relates to a pivot assembly and, more particularly, to a pivot assembly having a linked gear set.

With the maturity of touch screen technology, there are many portable devices that are normally configured with a touch screen, such as a notebook computer that can function as a tablet computer, including a first board and a second board. The first board is, for example, an upper cover on which a touch screen is mounted, and the second board is, for example, a base on which computer components, a battery, and a keyboard are mounted. In order to allow the notebook computer to operate as a tablet computer, it is necessary to convert the screen to the first panel with the screen facing outward, and the first panel and the second panel are closed together to form a tablet-like aspect. . In order to achieve the above object, there is now a pivot assembly having a first shaft and a second shaft, and connecting the first shaft and the second shaft to the first plate and the second plate, respectively, so that the first plate and the first plate The second plate body can be flipped between 0 degrees and 360 degrees. However, since the first axis and the second axis rotate asynchronously, the rotation order of the first axis and the second axis is likely to be inconsistent, which affects the smoothness during operation.

In view of this, the purpose of the present invention is to propose a pivot assembly with a linkage gear set, in order to allow the first shaft and the second shaft to rotate synchronously, to improve the smoothness of the operation, and to save time and effort. efficacy.

In order to achieve the above object, the present invention proposes a pivot assembly having a linked gear set including a bracket, a first shaft, a second shaft, a third shaft, a first gear, a second gear, a third gear and a fourth gear . The first shaft is pivotally mounted on the bracket, the second shaft is pivotally mounted on the bracket and parallel to the first shaft, and the third shaft is pivotally mounted on the bracket and perpendicular to the first shaft and the second shaft, the first gear Engaged in the first shaft, the second gear is fitted to the second shaft, the third gear is fitted to the third shaft and meshes with the first gear, and the fourth gear is fitted to the third shaft and meshes with the first shaft Two gears.

In an embodiment of the present invention, the first gear, the second gear, the third gear, and the fourth gear are bevel gears.

In an embodiment of the present invention, the first gear has the same number of teeth as the second gear, and the third gear has the same number of teeth as the fourth gear, and the number of teeth of the first gear is smaller than the number of teeth of the third gear.

In an embodiment of the present invention, the bracket includes a first bracket, a second bracket and a third bracket. The first bracket and the second bracket are spaced apart from each other and parallel to each other, and the third bracket is vertically connected to the first bracket. The second bracket is pivotally disposed on the first bracket and the second bracket, the second shaft is pivotally disposed on the first bracket and the second bracket, and the third shaft is pivotally disposed on the third bracket.

In an embodiment of the present invention, the third bracket is located between the first bracket and the second bracket, the third shaft is located between the first shaft and the second shaft, the third gear and the fourth A gear is located at both ends of the third shaft and on both sides of the third bracket.

In an embodiment of the present invention, the first gear and the second gear are in contact with the first bracket.

In an embodiment of the present invention, the pivot assembly having the interlocking gear set further includes two fixing sleeves, and the two fixing sleeves are respectively sleeved on the first shaft and the second shaft, and the two fixing sleeves are located at the first Between a bracket and the second bracket, one ends of the two fixing sleeves respectively abut the first gear and the second gear.

In an embodiment of the present invention, the fixing sleeve is hollow cylindrical, and the side surface of the fixing sleeve has an opening extending from one end of the fixing sleeve to the other end, and the sides of the fixing sleeve respectively abut the first Three gears with the fourth gear.

In an embodiment of the present invention, a side of the third bracket adjacent to the first bracket has a notch, the notch is U-shaped, and the third shaft is pivotally disposed on the notch.

In an embodiment of the present invention, the pivot assembly having the interlocking gear set further includes at least one torsion assembly including an axial movable member, an elastic member and a fixing member, the axial movement The elastic member and the fixing member are sleeved on the first shaft or the second shaft, and the elastic member is sandwiched between the axial movable member and the fixing member, and the axial movable member abuts the bracket.

The pivot assembly of the interlocking gear set proposed by the present invention, wherein the first shaft and the second shaft are synchronously rotated by the linkage structure of the first gear, the second gear, the third gear and the fourth gear, Improve the smoothness of the operation, but also save time and effort.

To make the objects, features, and advantages of the present invention more comprehensible to those of ordinary skill in the art, the following description of the preferred embodiments and the accompanying drawings are set forth below.

10‧‧‧Electronic devices

11‧‧‧ first board

12‧‧‧Second plate

20‧‧‧ pivot assembly

21‧‧‧first axis

211‧‧‧First fixed plate

22‧‧‧second axis

221‧‧‧Second fixed plate

23‧‧‧ Third axis

25‧‧‧ fixed set

251‧‧‧ openings

31‧‧‧First gear

32‧‧‧second gear

33‧‧‧ Third gear

34‧‧‧fourth gear

41‧‧‧First bracket

42‧‧‧second bracket

421‧‧‧ Groove

43‧‧‧ Third bracket

431‧‧‧ gap

50‧‧‧Torque assembly

51‧‧‧Axial moving parts

511‧‧‧Bumps

52‧‧‧Flexible parts

53‧‧‧Fixed parts

54‧‧‧shims

FIG. 1 is a schematic diagram of an electronic device according to a preferred embodiment of the present invention.

2 is a schematic view of a pivot assembly of a preferred embodiment of the present invention.

Figure 3 is a schematic exploded view of the pivot assembly of a preferred embodiment of the present invention.

Figure 4 is a schematic view of a third bracket and a third shaft of a preferred embodiment of the present invention.

FIG. 5 is a schematic view showing a second bracket and an axial movable member according to a preferred embodiment of the present invention.

Figure 6 is a schematic view showing the pivot assembly of the preferred embodiment of the present invention unfolded at 90 degrees.

Figure 7 is a schematic view showing the pivot assembly of the preferred embodiment of the present invention unfolded by 180 degrees.

Figure 8 is a schematic view showing the pivot assembly of the preferred embodiment of the present invention unfolded 360 degrees.

Please refer to FIG. 1. FIG. 1 shows an electronic device 10 according to an embodiment of the present invention. In the embodiment, the electronic device 10 is a notebook computer that can function as a tablet computer, but is not limited thereto. The electronic device 10 includes a first plate body 11, a second plate body 12 and two pivot assemblies 20. The first board body 11 is an upper cover on which a touch screen is mounted, and the second board body 12 is a base on which computer components, a battery and a keyboard are mounted, but is not limited thereto. The two pivot assemblies 20 are respectively connected to one side of the first plate body 11 and the second plate body 12 and are symmetrically disposed to each other. The first plate body 11 and the second plate body 12 can be relatively unfolded by the pivot assembly 20, and the deployment range thereof can be from 0 degrees to 360 degrees, wherein, at 0 degrees, the electronic device 10 is in a closed state, at 360 degrees. The electronic device 10 is in a state of simulating a tablet.

Please refer to FIG. 2 and FIG. 3 again. FIG. 2 and FIG. 3 are respectively a pivot assembly 20 and an exploded view thereof according to an embodiment of the present invention. The pivot assembly 20 has a linkage gear set and a pivot. The assembly 20 includes a bracket, a first shaft 21, a first fixing plate 211, a second shaft 22, a second fixing plate 221, a third shaft 23, two fixing sleeves 25, a first gear 31, a second gear 32, and a third The gear 33, the fourth gear 34 and the two torque assemblies 50. The first shaft 21 is pivotally mounted on the bracket, the second shaft 22 is pivotally mounted on the bracket and parallel to the first shaft 21, and the third shaft 23 is pivotally mounted on the bracket and perpendicular to the first shaft 21 and the second shaft 22, the first fixed The plate 211 is fixed to the first shaft 21, and the first fixing plate 211 is used for connecting the first plate body 11, the second fixing plate 221 is fixed to the second shaft 22, and the second fixing plate 221 is used for connecting the second plate body 12. .

Specifically, the bracket includes a first bracket 41, a second bracket 42 and a third bracket 43. The first bracket 41 and the second bracket 42 are spaced apart from each other and parallel to each other, and the third bracket 43 is perpendicularly connected to the second bracket 42, and the first bracket The second bracket 42 and the third bracket 43 are fixed to each other, and the first bracket 41, the second bracket 42 and the third bracket 43 are all plate-shaped. The first shaft 21 is pivotally disposed on the first bracket 41 and the second bracket 42 . The second shaft 22 is pivotally disposed on the first bracket 41 and the second bracket 42 . In other words, the first bracket 41 and the second bracket 42 are disposed through the first bracket 41 and the second bracket 42 . a shaft hole (not labeled), the first shaft 21 is rotatably disposed in the corresponding shaft hole of the first bracket 41 and the second bracket 42 , and the second shaft 22 is also rotatably disposed through the first bracket 41 and the first bracket In the corresponding shaft hole on the second bracket 42.

Please refer to FIG. 2, FIG. 3 and FIG. 4 at the same time. FIG. 4 is a schematic view showing the third bracket 43 and the third shaft 23 according to an embodiment of the present invention, and FIG. 4 omits some components to facilitate The third bracket 43 and the third shaft 23 are shown. The third bracket 43 is located between the first bracket 41 and the second bracket 42 . The third shaft 23 is located between the first shaft 21 and the second shaft 22 , and the third shaft 23 is pivoted to the third bracket 43 . A side of the third bracket 43 adjacent to the first bracket 41 has a notch 431. The notch 431 has a U shape, and a middle portion of the third shaft 23 is rotatably disposed in the notch 431. The first gear 31 is fitted to the first shaft 21, the second gear 32 is fitted to the second shaft 22, and the two fixing sleeves 25 are respectively sleeved on the first shaft 21 and the second shaft 22, and the two fixing sleeves 25 are located on the first bracket. Between the first bracket 31 and the second bracket 42 , one end of the two fixing sleeves 25 respectively abuts the first gear 31 and the second gear 32 , and the other ends of the two fixing sleeves 25 respectively abut against the second bracket 42 . The axial position of the second gear 32 can be clamped and fixed between the fixing sleeve 25 and the first bracket 41 such that the first gear 31 and the second gear 32 are normally in contact with the first bracket 41.

The third gear 33 is fitted to the third shaft 23 and meshes with the first gear 31. The fourth gear 34 is fitted to the third shaft 23 and meshes with the second gear 32. The third gear 33 and the fourth gear 34 are fixed to the third gear. Both ends of the shaft 23, and thus the third shaft 23, the third gear 33 and the fourth gear 34 form a structure having an I-shaped cross section. When assembled, the middle portion of the third shaft 23 can be mounted along the opening side of the notch 431. After the loading, the third gear 33 and the fourth gear 34 are sandwiched on both sides of the third bracket 43 , and the third gear 33 and the fourth gear 34 are respectively engaged by the first gear 31 and the second gear 32 . For this reason, the third shaft 23 is pushed in and the normality is located inside the notch 431.

The first gear 31, the second gear 32, the third gear 33 and the fourth gear 34 are bevel gears, the first gear 31 and the third gear 33 are vertically meshed with each other, and the second gear 32 and the fourth gear 34 are also perpendicular to each other. Engage. In the present embodiment, the number of teeth of the first gear 31 and the second gear 32 is the same, the number of teeth of the third gear 33 and the fourth gear 34 is the same, and the number of teeth of the first gear 31 is smaller than the number of teeth of the third gear 33. The fixing sleeve 25 has a hollow cylindrical shape, and the side of the fixing sleeve 25 has an opening 251. The opening 251 extends from one end of the fixing sleeve 25 to the other end, and the sides of the two fixing sleeves 25 respectively abut the third gear 33 and the fourth gear 34. Thereby, the stability when the third gear 33 and the fourth gear 34 are rotated is ensured.

The two torque assemblies 50 are respectively sleeved at one ends of the first shaft 21 and the second shaft 22, and the torque assembly 50 includes an axial movable member 51, an elastic member 52, a fixing member 53 and a spacer 54, an axial movable member 51, The elastic member 52, the fixing member 53 and the spacer 54 are sleeved on the first shaft 21 and the second shaft 22. The elastic member 52 is sandwiched between the axial movable member 51 and the fixing member 53, and the elastic member 52 and the axial direction A spacer 54 is disposed between the movable member 51, and a spacer 54 is also disposed between the elastic member 52 and the fixing member 53, and the spacer 54 can be used for reducing wear between the components. The two axial movable members 51 are abutted against the second bracket 42 , and the two axial movable members 51 are respectively fitted to the first shaft 21 and the second shaft 22 , that is, the axial movable member 51 can be the first shaft 21 or the second The shaft 22 drives the rotation. The fixing member 53 is for maintaining the spacing between it and the second bracket 42. The elastic member 52 can force the axial movable member 51 against the second bracket 42 to generate an appropriate frictional force between the axial movable member 51 and the second bracket 42 as a frictional force for maintaining the first shaft 21 A supporting force with respect to the second shaft 22 at a relative angle to each other.

Please refer to FIG. 2, FIG. 3 and FIG. 5 at the same time. FIG. 5 shows a second bracket 42 and an axial movable member 51 according to an embodiment of the present invention. A groove 421 is disposed on a side of the second bracket 42 facing the axial movable member 51, and a side of the axial movable member 51 facing the second bracket 42 is provided with a bump 511 when the first shaft 21 and the second shaft 22 are When rotated, the axial movable member 51 will rotate relative to the second bracket 42 and rub against each other, and when rotated to a predetermined angle, the projection 511 will fall into the recess 421, thereby producing a positioning effect.

When the user pulls the first plate 11, the first plate 11 drives the first fixed plate 211 to rotate with the first shaft 21, and when the first shaft 21 rotates, the first gear 31 rotates, synchronously, A gear 31 drives the third gear 33 to rotate, the third gear 33 drives the third shaft 23 to rotate, the third shaft 23 drives the fourth gear 34 to rotate, the fourth gear 34 drives the second gear 32 to rotate, and the second gear 32 drives the second gear 32. When the shaft 22 rotates, the second shaft 22 and the second fixing plate 221 drive the second plate body 12 to rotate (ie, expand or close with respect to the first plate body 11), whereby the first gear 31 and the second gear 32, The third gear 33 and the fourth gear 34 together form an interlocking gear set, and the first shaft 21 and the second shaft 22 can be synchronously rotated, and when the user pulls the first plate 11 or the second plate 12 In one of the cases, the other of the first plate 11 or the second plate 12 will be simultaneously unfolded or closed at the same amplitude, which is more time- and labor-saving. In other embodiments, since the first shaft and the second shaft are interlocked with each other, the torque assembly may have only one set and be sleeved on one of the first shaft and the second shaft.

Please refer to FIG. 6 to FIG. 8 at the same time, and the state in which the pivot assembly is unfolded at 90 degrees, 180 degrees, and 360 degrees in sequence as shown in FIGS. 6 to 8 is also shown. When the first fixing plate 211 is rotated by 45 degrees, the second fixing plate 221 is synchronously rotated by 45 degrees, so that the first fixing plate 211 and the second fixing plate 221 are coextensively rotated by 90 degrees, as shown in FIG. When the first fixing plate 211 is rotated by 90 degrees, the second fixing plate 221 is synchronously rotated by 90 degrees, so that the first fixing plate 211 and the second fixing plate 221 are expanded by 180 degrees, as shown in FIG. When the first fixing plate 211 is rotated by 180 degrees, the second fixing plate 221 is synchronously rotated by 180 degrees, so that the first fixing plate 211 and the second fixing plate 221 are expanded 360 degrees together, as shown in FIG.

In summary, the present invention provides a pivot assembly having a linked gear set, which allows the first shaft and the second by the linkage structure of the first gear, the second gear, the third gear and the fourth gear. The shaft can be rotated synchronously, which not only improves the smoothness of the operation, but also saves time and effort.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and anyone skilled in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of protection is subject to the definition of the scope of the patent application.

20‧‧‧ pivot assembly

21‧‧‧first axis

211‧‧‧First fixed plate

22‧‧‧second axis

221‧‧‧Second fixed plate

23‧‧‧ Third axis

25‧‧‧ fixed set

251‧‧‧ openings

31‧‧‧First gear

32‧‧‧second gear

33‧‧‧ Third gear

34‧‧‧fourth gear

41‧‧‧First bracket

42‧‧‧second bracket

43‧‧‧ Third bracket

50‧‧‧Torque assembly

51‧‧‧Axial moving parts

52‧‧‧Flexible parts

53‧‧‧Fixed parts

54‧‧‧shims

Claims (10)

A pivot assembly having a linked gear set comprising:
a bracket
a first shaft pivotally mounted on the bracket;
a second shaft pivotally mounted on the bracket and parallel to the first shaft;
a third shaft pivotally disposed on the bracket and perpendicular to the first shaft and the second shaft;
a first gear is fitted to the first shaft;
a second gear is fitted to the second shaft;
a third gear is fitted to the third shaft and engages the first gear; and a fourth gear is fitted to the third shaft and engages the second gear. A pivot assembly having a linked gear set according to claim 1, wherein the first gear, the second gear, the third gear and the fourth gear are bevel gears. The pivot assembly having a linked gear set according to claim 2, wherein the first gear has the same number of teeth as the second gear, and the third gear has the same number of teeth as the fourth gear. The number of teeth of a gear is smaller than the number of teeth of the third gear. The pivot assembly of the linked gear set of claim 1, wherein the bracket comprises a first bracket, a second bracket and a third bracket, the first bracket and the second bracket are mutually The second bracket is vertically connected to the second bracket, the first shaft is pivotally disposed on the first bracket and the second bracket, and the second shaft is pivotally disposed on the first bracket and the second bracket The third shaft is pivotally disposed on the third bracket. A pivot assembly having a linked gear set according to claim 4, wherein the third bracket is located between the first bracket and the second bracket, the third shaft being located at the first shaft and the Between the second shafts, the third gear and the fourth gear are located at both ends of the third shaft and on both sides of the third bracket. A pivot assembly having a linked gear set according to claim 5, wherein the first gear and the second gear abut against the first bracket. The pivot assembly having the interlocking gear set according to claim 6 further includes two fixing sleeves respectively sleeved on the first shaft and the second shaft, and the two fixing sleeves are located at the same Between the first bracket and the second bracket, one ends of the two fixing sleeves respectively abut the first gear and the second gear. The pivot assembly of the interlocking gear set of claim 7, wherein the fixing sleeve is hollow cylindrical, and the side of the fixing sleeve has an opening extending from one end of the fixing sleeve to At the other end, the sides of the two fixing sleeves respectively abut the third gear and the fourth gear. The pivot assembly of the interlocking gear set of claim 7, wherein the third bracket has a notch adjacent to the first bracket, the notch is U-shaped, and the third shaft is pivoted. In the gap. The pivot assembly having the interlocking gear set according to claim 1, further comprising at least one torque assembly, the torsion assembly comprising an axial movable member, an elastic member and a fixing member, the axial direction The movable member, the elastic member and the fixing member are sleeved on the first shaft or the second shaft, and the elastic member is sandwiched between the axial movable member and the fixing member, the axial movable member abuts the bracket .