CN222229153U - Hinge - Google Patents

Abstract

The utility model provides a hinge to solve the problem of the large number of components of the current hinge. The hinge of the utility model includes: a fixed seat, having two arc guide rails, each arc guide rail defines a virtual axis; two rotating brackets, each rotating bracket has a first virtual axis structure and an actuator, the first virtual axis structure is pivotally connected to the corresponding arc guide rail, the actuator protrudes from the side edge of the rotating bracket, and the actuator has a tooth portion, the axis center line of the tooth portion coincides with the corresponding virtual axis, and the axis center line of the tooth portion is located above the top surface of the rotating bracket; a gear set, located on one side of the fixed seat, and meshing with the tooth portions of the actuators of the two rotating brackets; and a torque mechanism, connecting the gear set.

Description

Hinge

Technical Field

The present utility model relates to a hinge, and more particularly to a hinge for a flexible screen of an electronic device.

Background

In order to pursue a larger size screen for use and to provide a small size and portability, in recent years, folding mobile devices (such as mobile phones, tablet computers, notebook computers or electronic readers) having flexible screens have been developed on the market, which usually have a hinge connected between two bodies to enable the two bodies to be relatively unfolded or folded.

The conventional hinge includes a synchronization mechanism and a torsion mechanism, and the synchronization mechanism and the torsion mechanism are independent structures or are integrated together, and in the synchronization mechanism, a guide plate with a sliding slot is required to be additionally combined on the side of a rotating bracket connected with a screen, so that a lug of a swinging plate sleeved on a physical shaft penetrates into the sliding slot, and when the screen is pivoted, a gear set combined with the physical shaft is linked through the rotating bracket, the guide plate, the swinging plate and the physical shaft, so that the torsion mechanism is forced.

Disclosure of utility model

However, the conventional hinge has problems of high manufacturing and assembling costs, difficulty in reduction in volume and weight, and the like, because the number of constituent members of the hinge is large and the structure is complicated.

In view of the above-mentioned drawbacks of the prior art, the inventor has felt that the present invention is not perfect, and has focused on the study and overcoming the defects, and further developed a hinge, which can simplify and combine the functions of the physical shaft and the virtual shaft, and directly link the gear set by the rotating bracket, so as to greatly reduce the number of component members of the overall hinge.

The hinge comprises a fixed seat, two rotating brackets, a torsion mechanism and a torsion mechanism, wherein the fixed seat is provided with two arc-shaped guide rails, each arc-shaped guide rail is used for defining a virtual axis, each rotating bracket is provided with a first virtual shaft structure and an actuating piece, the first virtual shaft structure is pivoted with the corresponding arc-shaped guide rail, the actuating piece protrudes out of the side edge of the rotating bracket, the actuating piece is provided with a tooth part, the axis of the tooth part coincides with the corresponding virtual axis, the axis of the tooth part is positioned above the top surface of the rotating bracket, the gear set is positioned at one side of the fixed seat and meshed with the tooth parts of the actuating pieces of the two rotating brackets, the torsion mechanism is provided with two entity shafts and a spring group, the gear set is positioned between the fixed seat and the spring group, and the two entity shafts respectively penetrate through the spring group, the gear set and the fixed seat.

In the hinge, the fixing seat may have two arc guide blocks, the two arc guide blocks and the two arc guide rails may be coaxially disposed with the two virtual axes, each rotating bracket may have a second virtual shaft structure, and the fixing seat may be pivotally connected to the second virtual shaft structures of the two rotating brackets by the two arc guide blocks.

In the hinge, the gear set may have a first bevel gear and two second bevel gears, the fixing seat may have a shaft connection portion, the first bevel gear is rotatably disposed on the shaft connection portion, the two second bevel gears are penetrated by the two solid shafts respectively, the two second bevel gears are meshed with the tooth portions of the two rotating brackets, and the two second bevel gears are meshed with the first bevel gear.

In the hinge, the gear set may have two driving gears and two driven gears, where the two driving gears are penetrated by the two physical shafts and meshed with the teeth of the two rotating brackets, and the two driven gears are located between the two driving gears and meshed with the driving gears on the outer sides.

In the hinge, one side of the gear set away from the fixing seat may have at least one first cam portion, the torsion mechanism may have a cam seat and a spring fixing seat, the spring set may be clamped between the cam seat and the spring fixing seat, the cam seat may have at least one second cam portion, and the second cam portion may abut against the first cam portion.

In the hinge, the torsion mechanism may have a tightening plate, the two rotating brackets may be located between the tightening plate and the gear set, and the two physical shafts may penetrate the fixing base and the corresponding rotating brackets and be combined with the tightening plate.

In the hinge, the tightening plate may have a plurality of third cam portions facing the two rotating brackets, and the two rotating brackets may each have at least one fourth cam portion, so that the fourth cam portions of the two rotating brackets abut against the plurality of third cam portions of the tightening plate.

Therefore, the hinge can simplify and combine the functions of the physical shaft and the virtual shaft, and the rotating bracket directly links the gear set, so that the number of component members of the whole hinge is greatly reduced, the manufacturing and assembling cost of the hinge can be effectively reduced, the volume and the weight of the hinge are reduced, and the development trend of lightening and thinning of a mobile device is facilitated.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present utility model in an unfolded state.

Fig. 2 is an exploded perspective view of a first embodiment of the present utility model.

Fig. 3 is another perspective exploded view of the first embodiment of the present utility model.

Fig. 4 is a schematic front view of a fixing base according to a first embodiment of the present utility model.

Fig. 5 is a perspective view of a rotary bracket according to a first embodiment of the present utility model.

Fig. 6 is a schematic top view of a first embodiment of the present utility model.

Fig. 7 is a schematic cross-sectional view taken along line A-A in fig. 6.

Fig. 8 is a schematic cross-sectional view taken along line B-B in fig. 6.

Fig. 9 is a schematic cross-sectional view taken along line C-C of fig. 6.

Fig. 10 is a schematic plan view of a first embodiment of the present utility model in a folded state.

Fig. 11 is an exploded perspective view of a second embodiment of the present utility model.

Fig. 12 is a partially exploded perspective view of a second embodiment of the present utility model.

Fig. 13 is a schematic top view of a second embodiment of the present utility model.

Fig. 14 is a schematic cross-sectional view taken along line D-D in fig. 13.

Fig. 15 is a schematic cross-sectional view taken along line E-E of fig. 13.

Reference numerals

1. Fixing seat

11. Arc guide rail

12. Arc guide block

13. Shaft joint

2. Rotary bracket

21. First virtual shaft structure

22. Actuating member

221. Tooth part

23. Top surface

24. Second virtual shaft structure

25. Fourth cam part

3. 3' Gear set

31. First helical gear

32. Second helical gear

33. A first cam part

34. Driving gear

35. Driven gear

4. Torsion mechanism

41. Solid shaft

42. Spring set

43. Cam seat

431. A second cam part

44. Spring fixing seat

45. Packing plate

451. Third cam part

L1 virtual axis

L2 axis line

Detailed Description

For a full understanding of the objects, features and effects of the present utility model, reference should be made to the following detailed description of the utility model taken in conjunction with the accompanying drawings in which:

Please refer to fig. 1 and fig. 2, which are a first embodiment of the hinge of the present utility model, the hinge comprises a fixing base 1, two rotating brackets 2, a gear set 3 and a torsion mechanism 4, wherein the two rotating brackets 2 are pivoted to the fixing base 1, the gear set 3 is engaged with the two rotating brackets 2, and the torsion mechanism 4 is connected with the gear set 3.

In detail, referring to fig. 2 to 8, the fixing base 1 has two arc-shaped rails 11, and the two arc-shaped rails 11 each define a virtual axis L1 according to the center position of the arc. Each rotating bracket 2 has a first virtual shaft structure 21, and the two rotating brackets 2 are respectively pivoted to the two arc-shaped guide rails 11 by the first virtual shaft structures 21, so that the two rotating brackets 2 can respectively pivot relative to the fixed seat 1 by taking the two virtual axes L1 as the center. Each rotary support 2 further has an actuating member 22, wherein the actuating member 22 integrally protrudes from a side edge of the rotary support 2, the actuating member 22 has a tooth portion 221, an axial line L2 (shown in fig. 7, in which two-point chain line circles are top circles of the tooth portion 221) of the tooth portion 221 coincides with a corresponding virtual axis L1, and the axial line L2 of the tooth portion 221 is located above the top surface 23 of the rotary support 2. The gear set 3 is located at one side of the fixed seat 1 and is engaged with the teeth 221 of the actuating members 22 of the two rotating brackets 2. The torsion mechanism 4 has two physical shafts 41 and a spring set 42, the gear set 3 is located between the fixing base 1 and the spring set 42, and the two physical shafts 41 respectively penetrate the spring set 42, the gear set 3 and the fixing base 1 (as shown in fig. 8).

In use, the two rotary brackets 2 can be pivotally switched from the unfolded state shown in fig. 1 to the folded state shown in fig. 10, and in the pivoting process, the two rotary brackets 2 can be directly driven by the respective actuating members 22 to rotate the gear set 3, and the gear set 3 applies force to the spring set 42 of the torsion mechanism 4 to maintain moderate contact between components without shaking, and the two rotary brackets 2 can keep bilateral and synchronous movement through the gear set 3 meshed with the two actuating members 22 at the same time.

Therefore, the hinge of the embodiment can simplify and combine the functions of the physical shaft and the virtual shaft, and the two rotary brackets 2 directly link the gear set 3, so that the side edges of the two rotary brackets 2 do not need to be additionally combined with guide sheets with sliding grooves, and the two physical shafts 41 do not need to be penetrated and sleeved with swing sheets with protruding blocks.

Referring to fig. 4, 5 and 3, in addition to the above embodiment, in an embodiment of the present utility model, the fixing base 1 may have two arc-shaped guide blocks 12, and the two arc-shaped guide blocks 12 and the two arc-shaped guide rails 11 may be spaced apart in a front-rear direction and coaxially disposed along the two virtual axes L1 respectively. Each rotating bracket 2 may have a second virtual shaft structure 24, so that the fixing base 1 may be pivotally connected to the second virtual shaft structures 24 of the two rotating brackets 2by the two arc-shaped guide blocks 12. In this way, the two rotating brackets 2 of the present embodiment can pivot more firmly with respect to the fixed base 1 about the two virtual axes L1, respectively. In other embodiments, the arc guide 11 and the arc guide 12 of the fixing base 1 can also be interchanged, and the first virtual shaft structure 21 and the second virtual shaft structure 24 of the two rotating brackets 2 can only pivot relative to the corresponding arc guide 11 or arc guide 12, so the utility model is not limited to the disclosed form of the drawings.

Referring to fig. 2, 7 and 9, in addition to the above embodiment, in an embodiment of the present utility model, the gear set 3 may have a first bevel gear 31 and two second bevel gears 32, the fixing base 1 may have a shaft portion 13, the first bevel gear 31 is rotatably disposed on the shaft portion 13, the two second bevel gears 32 are respectively penetrated by the two solid shafts 41, wherein the two second bevel gears 32 are engaged with the teeth 221 of the actuating members 22 of the two rotating brackets 2 (as shown in fig. 7), and the two second bevel gears 32 are engaged with the first bevel gear 31 (as shown in fig. 9). Thus, the gear set 3 of the present embodiment only adopts three bevel gears, so as to achieve the aforementioned linkage action, and further reduce the number of component members of the integral hinge.

Referring to fig. 2 and 6, in addition to the above embodiment, in an embodiment of the present utility model, a side of the gear set 3 facing away from the fixing base 1 has at least one first cam portion 33, the torsion mechanism 4 has a cam seat 43 and a spring fixing base 44, the spring set 42 is sandwiched between the cam seat 43 and the spring fixing base 44, the cam seat 43 has at least one second cam portion 431, and the second cam portion 431 abuts against the first cam portion 33. Accordingly, when the gear set 3 rotates, the first cam portion 33 can push against the second cam portion 431, so that the cam seat 43 can approach the spring fixing seat 44 to compress the spring set 42. Therefore, the force can be transmitted between the gear set 3 and the torsion mechanism 4 by a simple structure to control the spring set 42 to be accurately compressed or elastically reset, so that the convenience of manufacturing and assembling can be improved, and the effect of stabilizing the hinge unfolding or folding by the torsion mechanism 4 can be improved.

For example, but not limiting to, in an embodiment of the present utility model, the first cam portion 33 may be provided at the ends of the two second bevel gears 32. Thus, the gear set 3 of the present embodiment can more smoothly transmit force to the torsion mechanism 4, and both the gear set 3 and the cam seat 43 can have a structure that is easy to manufacture and assemble.

Please refer to fig. 11 to 14, which illustrate a second embodiment of the hinge of the present utility model. The hinge of the present embodiment is substantially the same as the hinge of the first embodiment, and the main difference is that the torsion mechanism 4 of the hinge of the present embodiment can further increase the compression amount of the spring set 42 in a single stroke, and the present embodiment provides another gear set 3'.

In detail, the torsion mechanism 4 of the present embodiment may further have a tightening plate 45, the two rotating brackets 2 may be located between the tightening plate 45 and the gear set 3', and the two physical shafts 41 penetrate the fixing base 1 and the corresponding rotating brackets 2 and are combined with the tightening plate 45 (as shown in fig. 14). The packing plate 45 may have a plurality of third cam portions 451 facing the two rotating brackets 2, and the two rotating brackets 2 may each have at least one fourth cam portion 25, so that the plurality of fourth cam portions 25 of the two rotating brackets 2 abut against the plurality of third cam portions 451 of the packing plate 45.

Accordingly, when the two rotating brackets 2 pivot, the first cam portion 33 can push against the second cam portion 431 to make the cam seat 43 approach the spring fixing seat 44 to compress the spring set 42, and the fourth cam portion 25 can push against the corresponding third cam portion 451 to make the two rotating brackets 2, the fixing seat 1 and the gear set 3' translate synchronously in a direction away from the tightening plate 45, so that the compression amount of the spring set 42 is increased under a single stroke, the torsion force generated by the torsion mechanism 4 is further increased, and the contact area is increased between the first cam portion 33 and the second cam portion 431 and between the third cam portion 451 and the fourth cam portion 25 to reduce the torsion recession speed.

On the other hand, referring to fig. 11, 13 and 15, the gear set 3' of the present embodiment may have two driving gears 34 and two driven gears 35. The two driving gears 34 are penetrated by the two solid shafts 41, respectively, and are engaged with the teeth 221 of the actuating members 22 of the two rotating brackets 2, respectively. The two driven gears 35 may be located between the two driving gears 34, and the two driven gears 35 are engaged with each other and with the driving gears 34 on the outer sides, respectively. The present utility model is not limited to the two driving gears 34 and the two driven gears 35, and may be, for example, spur gears or helical gears.

In this way, the gear set 3 'of the present embodiment can be driven by the actuating members 22 of the two rotating brackets 2 to rotate when the two rotating brackets 2 pivot, and the gear set 3' applies force to the spring set 42 of the torsion mechanism 4. In addition, the gear set 3' of the present embodiment may have a larger number of gears, so the spring set 42 may be provided with a corresponding number of springs, or the first cam portion 33 may be provided at an end portion of each gear, and the second cam portion 431 may be provided at the cam seat 43, so as to help to promote the torsion force generated by the torsion mechanism 4 of the present embodiment.

It should be noted that the gear set 3 'of the present embodiment can be replaced with the gear set 3 of the first embodiment, i.e. the gear sets 3, 3' of the two embodiments can be used regardless of whether the hinge of the present utility model is provided with the urging plate 45.

The present utility model has been disclosed in the foregoing in terms of preferred embodiments, however, it will be appreciated by those skilled in the art that the embodiments are merely illustrative of the utility model and should not be construed as limiting the scope of the utility model. It should be noted that all changes and substitutions equivalent to the embodiment are intended to be included in the scope of the present utility model. Accordingly, the scope of the utility model is defined by the claims.

Claims (7)

1. A hinge, comprising:

The fixed seat is provided with two arc-shaped guide rails, and each arc-shaped guide rail defines a virtual axis;

the two rotary brackets are provided with a first virtual shaft structure and an actuating piece, the first virtual shaft structure is pivoted with the corresponding arc-shaped guide rail, the actuating piece protrudes out of the side edge of the rotary bracket, the actuating piece is provided with a tooth part, the axial lead of the tooth part is coincident with the corresponding virtual axis, and the axial lead of the tooth part is positioned above the top surface of the rotary bracket;

A gear set at one side of the fixed seat and meshed with the teeth of the actuating members of the two rotary brackets, and

The torsion mechanism is provided with two entity shafts and a spring set, the gear set is positioned between the fixed seat and the spring set, and the two entity shafts respectively penetrate through the spring set, the gear set and the fixed seat.

2. The hinge according to claim 1, wherein the fixing base has two arc guide blocks, the two arc guide blocks and the two arc guide rails are coaxially disposed along the two virtual axes, each rotating bracket has a second virtual shaft structure, and the fixing base is pivotally connected to the second virtual shaft structures of the two rotating brackets by the two arc guide blocks.

3. The hinge as claimed in claim 1, wherein the gear set has a first bevel gear and two second bevel gears, the fixing base has a shaft connection portion, the first bevel gear is rotatably disposed at the shaft connection portion, the two second bevel gears are penetrated by the two solid shafts respectively, the two second bevel gears are engaged with the teeth portions of the two rotating brackets, and the two second bevel gears are engaged with the first bevel gear.

4. The hinge as claimed in claim 1, wherein the gear set has two driving gears and two driven gears, the two driving gears are penetrated by the two solid shafts respectively and meshed with the teeth of the two rotating brackets respectively, the two driven gears are located between the two driving gears, and the two driven gears are meshed with the outer driving gears respectively.

5. The hinge according to claim 1, wherein the gear set has at least one first cam portion on a side facing away from the fixed base, the torsion mechanism has a cam base and a spring fixed base, the spring set is sandwiched between the cam base and the spring fixed base, the cam base has at least one second cam portion, and the second cam portion abuts against the first cam portion.

6. The hinge according to claim 1, wherein the torsion mechanism has a tightening plate, the two rotating brackets are located between the tightening plate and the gear set, and the two physical shafts penetrate the fixing base and the corresponding rotating brackets and are combined with the tightening plate.

7. The hinge according to claim 6, wherein the packing plate has a plurality of third cam portions facing the two rotating brackets, each of the two rotating brackets having at least one fourth cam portion, such that the plurality of fourth cam portions of the two rotating brackets abut the plurality of third cam portions of the packing plate.