TWM615946U - Dual shaft type hinge - Google Patents

Abstract

A two-axis hinge includes a track seat, two supporting mechanisms and two synchronization mechanisms. The track seat includes a top surface, two pairs of arc-shaped inner slide rails and two pairs of arc-shaped outer slide rails that are symmetrically arranged on both sides of the center line. The supporting mechanism is symmetrically arranged on the rail seat and can relatively open and close and rotate between the unfolded position and the folded position. The supporting mechanism includes a sliding bracket and two simultaneous brackets. The sliding shaft of the sliding bracket can slide along the inner sliding rail. The simultaneous bracket is connected to the opposite sides of the sliding bracket and can slide relative to the sliding bracket and can slide along the outer sliding rail. Each synchronizing mechanism includes two pivots and two pivoting members respectively arranged on the pivots and capable of being pivoted synchronously, and the pivoting members are respectively slidably connected with adjacent synchronous brackets to enable the supporting mechanism to rotate synchronously.

Description

Two-axis hinge

The new model relates to a dual-axis hinge, in particular to a dual-axis hinge suitable for supporting a flexible screen.

In recent years, display screen technology has developed to bendable and foldable flexible screens, and portable electronic devices using flexible screens, such as folding screen mobile phones, notebook computers, etc., have also become an emerging technology field.

Current foldable electronic devices with flexible screens are classified into an in-folding type and an out-folding type according to whether the screen is located inside or outside the casing when the screen is folded. When the inward-folding electronic device is folded, the flexible screen is bent into a drop shape or a horseshoe shape, and the curved part of the flexible screen is easily squeezed by the casing and damaged.

Therefore, one of the objectives of the present invention is to provide a biaxial hinge that can solve the aforementioned problems.

Therefore, in some implementations of the new dual-axis hinge, a rail seat, two supporting mechanisms and two synchronizing mechanisms are included. The track seat includes a top surface, two pairs of inner slide rails symmetrically arranged on both sides of a centerline, and two pairs of outer slide rails symmetrically arranged on both sides of the centerline, and each pair of inner slide rails is located below the top surface , Along a first direction parallel to the center line opposite to each other and spaced apart and extending in a second direction perpendicular to the center line in an arc shape, each outer slide rail is located below the top surface, along the first direction are respectively located in the same The two opposite outer sides of the pair of inner slide rails extend in the second direction in an arc shape. The supporting mechanisms are respectively located on both sides of the center line, are symmetrically arranged on the rail seat and can open and close relative to each other between an expanded position and a folded position. Each supporting mechanism includes a sliding bracket and two simultaneous motions. Bracket, the sliding bracket has a bearing plate portion, a supporting body and a sliding shaft, the bearing plate portion has a supporting surface and a back surface opposite to the supporting surface, the supporting body is connected to the back surface and has a connection to the sliding shaft The connecting end of the shaft, the sliding shaft extends along the first direction, and both ends are respectively provided on one of the pair of inner slide rails to slide along the pair of inner slide rails, and the equivalent movable brackets are respectively connected to the support in the first direction The opposite sides of the body are slidable relative to the support body and respectively corresponding to one of the outer slide rails and can slide along the outer slide rail. The synchronization mechanisms are respectively connected to opposite sides of the rail seat in the first direction, and each synchronization mechanism includes two pivots respectively located on both sides of the center line and extending along the first direction, and two pivots respectively provided on the Pivoting parts that are equi-pivot and can be pivoted synchronously, and the pivot parts are respectively slidably connected with the adjacent synchronous brackets to make the supporting mechanisms rotate synchronously.

In some embodiments, the inner slide rails are arcs of non-equal curvature. When the supporting mechanisms are in the unfolded position, the sliding shafts of the slide brackets are located at one end of the corresponding inner slide rail close to the center line and the supporting surface Coplanar with the top surface of the rail seat. When the supporting mechanisms are in the folded position, the sliding shafts of the sliding brackets are located at the end of the corresponding inner sliding rail away from the center line, and the supporting surfaces are opposite to the top surface Gradually incline to approach and be spaced apart, so that the distance of the supporting surfaces on the side close to the top surface is greater than the distance on the side far away from the top surface.

In some embodiments, the support body further has two first sliding grooves located on opposite sides in the first direction and extending along the second direction. A sliding portion extending in an arc shape, and a supporting portion that abuts against the back surface of the supporting plate portion and can slide along one of the adjacent first sliding grooves.

In some embodiments, each synchronous bracket further has a second sliding groove extending along the second direction, and each pivoting member has a linkage part that can slide along the corresponding second sliding groove. The supporting mechanisms When in the unfolded position, the linkage portions are located at the end of the corresponding second slide groove away from the centerline, and when the support mechanisms are located in the retracted position, the linkage portions are located at the end corresponding to the second slide groove near the centerline .

In some embodiments, each synchronization mechanism further includes a gear base fixedly connected to the track base and a synchronizer that is rotatably arranged on the gear base, and the synchronizer has a synchronizing member along the second direction. An extended shaft portion and two bevel gears respectively connected to opposite ends of the shaft portion, the bevel gears are respectively arranged corresponding to the pivoting parts, and each pivoting part also has a pivoting part connected to the corresponding pivot , A main body part connecting the pivot part and the linkage part, and an umbrella tooth part formed on the pivot part and meshing with the corresponding bevel gear, and the synchronizing part makes the pivot parts pivot synchronously.

In some embodiments, each synchronization mechanism further includes two torsion units respectively arranged on the pivots to provide positioning torque.

In some embodiments, the gear base has a main member and a limiting member, and the main member has two holding holes for the pivots to pass through and limit the pivots, and an accommodation The limiting slot of the synchronizing member has a plate body and a limiting block protruding from the plate body toward the main member, and the limiting block and the main member jointly limit the synchronizing member.

In some embodiments, the rail seat is formed by combining two seat bodies side by side, and each pair of inner slide rails are respectively formed on the opposite inner sides of the seat bodies, and each outer slide rail is respectively formed on the opposite outer sides of the seat bodies. .

In some embodiments, the supporting plate portion extends to opposite sides of the supporting body along the first direction, so that the back surface of the supporting plate portion on both sides of the supporting body can be used for the movable support Leaning against.

The present invention has the following functions: when the sliding brackets are rotated to the folded position, the sliding shafts move along the inner sliding rails and retreat out of the space, which can ensure the flexibility supported by the biaxial hinge During the bending process of the screen, the actions of the sliding brackets will not pull or squeeze the flexible screen, and can prevent the flexible screen from being damaged. Moreover, the overall structure of the dual-axis hinge can be light, thin, and modular, corresponding to flexible screens with different flexural properties, and only need to replace the rail seat with inner slide rails corresponding to different flexible screen designs.

1 to 3, an embodiment of the new dual-axis hinge 100 is suitable for being installed in an electronic device (not shown) with a flexible screen S for connecting two relatively open and close housings ( (Not shown) and supporting the flexible screen S, the biaxial hinge 100 includes a rail base 10, two supporting mechanisms 2 and two synchronization mechanisms 3.

Referring to Figures 1, 2 and 4, the track base 10 includes a top surface 11, two pairs of inner slide rails 12 symmetrically arranged on both sides of a center line C, and two pairs of inner slide rails 12 symmetrically arranged on both sides of the center line C. The outer slide rail 13. Each pair of inner sliding rails 12 are located below the top surface 11, are opposite to and spaced from each other along a first direction D1 parallel to the center line C, and extend in an arc shape in a second direction D2 perpendicular to the center line C. Each outer slide rail 13 is located below the top surface 11, is located at two opposite outer sides of the pair of inner slide rails 12 on the same side along the first direction D1, and extends in an arc shape in the second direction D2. In this embodiment, the track base 10 is formed by combining two base bodies 1 side by side, and a connecting pin 14 is penetrated through the base bodies 1 to strengthen the bonding strength. Each pair of inner slide rails 12 is respectively formed on the relatively inner sides of the base bodies 1, and each outer slide rail 13 is respectively formed on the relatively outer sides of the base bodies 1.

Referring to Figures 1, 2 and 5, the supporting mechanisms 2 are respectively located on both sides of the center line C, are symmetrically arranged on the rail seat 10 and can be deployed in an unfolded position (as shown in Figures 1 and 3) and a The relative opening and closing rotation between the folded position (as shown in Figure 6). Each supporting mechanism 2 includes a sliding bracket 21 and two simultaneous brackets 22. The sliding bracket 21 has a supporting plate portion 211, a supporting body 212 and a sliding shaft 213. The supporting plate portion 211 has a supporting surface 211a and a back surface 211b opposite to the supporting surface 211a. The supporting body 212 is connected to the back surface 211b and has a connecting end 212a connected to the sliding shaft 213. The connecting end 212a protrudes toward the center line C relative to the bearing plate portion 211. The sliding shaft 213 extends along the first direction D1 and its two ends are respectively provided on a pair of inner sliding rails 12 to slide along the pair of inner sliding rails 12. The movable bracket 22 is respectively connected to the opposite sides of the support body 212 in the first direction D1 and can slide relative to the support body 212 and is respectively corresponding to one of the outer slide rails 13 and can slide along the outer slide rail 13.

In this embodiment, the bearing plate portion 211 of the sliding bracket 21 and the support body 212 are made integrally, and the sliding shaft 213 is made separately and passes through the connecting end portion 212a. However, in a modified embodiment, the sliding shaft 213 can also be integrally formed with the connecting end 212a, that is, the bearing plate portion 211, the support body 212, and the sliding shaft 213 of the sliding bracket 21 can also be integrally formed.

In this embodiment, the supporting body 212 further has two first sliding grooves 212b located on opposite sides in the first direction D1 and extending along the second direction D2. Compared with the supporting body 212, the supporting plate portion 211 extends to opposite sides along the first direction D1, so that the back surface 211b of the supporting plate portion 211 on both sides of the supporting body 212 can be used for the movable bracket 22 Leaning against. Each moving bracket 22 has a sliding portion 221 that can slide along the corresponding outer sliding rail 13 and extends in an arc shape, and a sliding portion 221 that abuts against the back surface 211b of the bearing plate portion 211 and can move along one of the adjacent first sliding grooves 212b Sliding support part 222. In addition, in this embodiment, each synchronous support 22 further has a second sliding groove 223 extending along the second direction D2.

As shown in FIG. 7, when the supporting mechanisms 2 are in the unfolded position, the sliding shafts 213 of the sliding brackets 21 are located at one end of the corresponding inner sliding rail 12 close to the center line C, and the supporting surface 211a is connected to the top of the rail seat 10. The surface 11 is coplanar to support the flat flexible screen S. As shown in FIG. 8, when the supporting mechanisms 2 are in the folded position, the sliding shafts 213 of the sliding brackets 21 are located at an end corresponding to the inner sliding rail 12 away from the center line C, and the supporting surfaces 211a are opposite to the top The surfaces 11 are gradually inclined toward each other and spaced apart, so that the distance L1 of the supporting surfaces 211a on the side close to the top surface 11 is greater than the distance L2 on the side far away from the top surface 11. In other words, when the sliding brackets 21 are rotated to the folded position, the sliding shafts 213 move along the inner sliding rails 12 and retreat out of space to accommodate the flexible screen S forming a horseshoe shape. In this embodiment, the inner sliding rails 12 guide the moving paths of the sliding shafts 213 and are arcs of non-equal curvature. The gradual curvature of the arcs is based on calculating the length of the flexible screen S during the bending process. The amount of change is obtained, so that the sliding brackets 21 can change the sliding track in accordance with the deflection and deformation of the flexible screen S. This ensures that during the bending process of the flexible screen S, the sliding brackets 21 will not be pulled or squeezed by the action of the flexible screen S, and the flexible screen S can be prevented from being damaged. The curvature changes of the inner slide rails 12 need to be adjusted to correspond to the flexural characteristics of different flexible screens S. If a similar flexible screen S is to be applied, only the track base 10 needs to be replaced, and other components need not be redesigned.

9 and 10, in this embodiment, the outer slide rails 13 are arc-shaped, the end close to the center line C is a closed end, and the end far away from the center line C is an open end. The shape and size of the sliding portion 221 of the equivalent movable support 22 is matched with the outer slide rails 13, as shown in FIG. The end of the corresponding outer slide rail 13 and close to the center line C is limited by the closed end of the corresponding outer slide rail 13. As shown in FIG. 10, when the supporting mechanisms 2 are in the folded position, a part of the sliding portion 221 of the movable bracket 22 moves out of the corresponding outer sliding rail 13.

Referring to FIGS. 2 and 11 to 13, the synchronization mechanisms 3 are respectively connected to opposite sides of the track base 10 in the first direction D1. Each synchronization mechanism 3 includes two pivot shafts 31 respectively located on both sides of the center line C and extending along the first direction D1 and two pivot members 32 respectively provided on the pivot shafts 31 and capable of being pivoted synchronously, The pivoting members 32 are respectively slidably connected with the adjacent synchronous support 22 and can drive the supporting mechanisms 2 to rotate synchronously. Since the synchronizing mechanisms 3 are located on both sides of the supporting mechanisms 2 and drive the supporting mechanisms 2 symmetrically on both sides, it is possible to avoid parts loss caused by uneven force applied on one side, and increase the service life and reliability.

In this embodiment, each synchronization mechanism 3 also includes a gear base 33 fixedly connected to the track base 10, a synchronizer 34 that is rotatably arranged on the gear base 33, and two synchronizing members 34 respectively arranged at The torsion unit 35 of the pivots 31 provides positioning torque. The gear base 33 has a main member 331 and a limiting member 332. The main member 331 has two retaining holes 331 a for the pivots 31 to pass through and limit the pivots 31, and a limit slot 331 b for accommodating the synchronizer 34. The limiting member 332 has a plate 332 a and a limiting block 332 b protruding from the plate 332 a toward the main member 331, and the limiting block 332 b and the main member 331 jointly limit the synchronization member 34. The pivots 31 also pass through the plate 332a for the torsion units 35 to be installed. The synchronizing member 34 has a shaft portion 341 extending along the second direction D2 and two bevel gears 342 respectively connected to opposite ends of the shaft portion 341, and the bevel gears 342 are respectively disposed corresponding to the pivoting members 32 . Each pivot member 32 has a linkage portion 321 slidable along the second sliding groove 223 of the corresponding synchronous support 22, a pivot portion 322 connected to the corresponding pivot shaft 31, and a pivot portion 322 connected to the linkage portion 322. The main body portion 323 of the portion 321 and an umbrella tooth portion 324 formed on the pivoting portion 322 and meshing with the corresponding bevel gear 342, the synchronizing member 34 makes the pivoting members 32 pivot synchronously. As shown in FIG. 3, when the supporting mechanisms 2 are in the unfolded position, the linkage portions 321 of the pivoting members 32 are located at an end corresponding to the second sliding groove 223 away from the center line C. As shown in FIG. 6, the When the supporting mechanism 2 is in the folded position, the linkage portions 321 are located at an end corresponding to the second sliding groove 223 close to the center line C.

Referring to Figures 2, 3, and 6, in this embodiment, when the user applies force to the supporting mechanism 2 on one side, the pivoting members 32 that pivot synchronously can be used to link the supporting mechanism on the other side. 2 is the same moving bracket 22, and then the same moving bracket 22 is linked to the sliding bracket 21 of the other side support mechanism 2, so that the support mechanism 2 located on both sides of the center line C can be between the expanded position and the folded position Synchronous opening and closing rotation.

In summary, when the sliding brackets 21 are rotated to the folded position, the sliding shafts 213 move along the inner sliding rails 12 and retreat out of space, which can ensure that the flexible screen S is bent During the process, the actions of the sliding brackets 21 will not pull or squeeze the flexible screen S, and can prevent the flexible screen S from being damaged. Moreover, the overall structure of the dual-axis hinge 100 can be made lighter, thinner, and modular. It corresponds to flexible screens S with different flexural properties, and it only needs to replace the rail base 10 with the inner slide rail 12 designed to correspond to different flexible screens S.

However, the above are only examples of the present model, and should not be used to limit the scope of implementation of the present model, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.

100: Double-axis hinge 10: Orbital seat 1: seat body 11: Top surface 12: inner slide 13: Outer slide 14: Connecting pin 2: Supporting mechanism 21: Sliding bracket 211: Bearing plate department 211a: Support surface 211b: Back 212: Support 212a: connecting end 212b: The first chute 213: Sliding shaft 22: Simultaneous moving bracket 221: Sliding part 222: Support Department 223: second chute 3: Synchronization mechanism 31: Pivot 32: pivot 321: Linkage Department 322: Pivot 323: Main Body 324: Umbrella Teeth 33: Gear seat 331: main component 331a: Holding hole 331b: Limit slot 332: limit piece 332a: Board body 332b: limit block 34: Synchronization 341: Shaft 342: Bevel Gear 35: Torque unit C: Centerline D1: First direction D2: second direction S: screen L1: distance L2: distance

The other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, among which: Figure 1 is a perspective view of an embodiment of the new dual-axis hinge; Figure 2 is a three-dimensional exploded view of the embodiment; Figure 3 is a side view of the embodiment in a deployed position; Figure 4 is a perspective exploded view of a rail seat of the embodiment; Figure 5 is a perspective exploded view of a supporting mechanism of the embodiment; Figure 6 is a side view of the embodiment in a folded position; Figure 7 is a side view illustrating the relative relationship between a sliding bracket of the support mechanism and the rail seat in the deployed position; Figure 8 is a side view illustrating the relative relationship between the sliding bracket and the rail seat in the folded position; FIG. 9 is a side view illustrating the relative relationship between the moving bracket of the supporting mechanism and the rail seat in the deployed position; Figure 10 is a side view illustrating the relative relationship between the co-moving bracket and the rail seat in the folded position; Figure 11 is a perspective exploded view of a synchronization mechanism of this embodiment; Figure 12 is another perspective exploded view of Figure 11; and Fig. 13 is an incomplete top view of the embodiment, in which the main member of a gear holder is removed to illustrate the meshing relationship between a synchronizer and two pivoting members.

10: Orbital seat

1: seat body

11: Top surface

12: inner slide

13: Outer slide

2: Supporting mechanism

21: Sliding bracket

211: Bearing plate department

211a: Support surface

211b: Back

212: Support

212a: connecting end

213: Sliding shaft

22: Simultaneous moving bracket

221: Sliding part

222: Support Department

223: second chute

3: Synchronization mechanism

31: Pivot

32: pivot

33: Gear seat

35: Torque unit

C: Centerline

D1: First direction

D2: second direction

Claims (9)

A two-axis hinge, including: A rail seat includes a top surface, two pairs of inner slide rails symmetrically arranged on both sides of a centerline, and two pairs of outer slide rails symmetrically arranged on both sides of the centerline, each pair of inner slide rails is located on the top surface The lower part is opposite to each other and spaced apart along a first direction parallel to the center line and extends in an arc shape in a second direction perpendicular to the center line. Each outer slide rail is located below the top surface and located along the first direction. Two opposite outer sides of the pair of inner slide rails on the same side extend in the second direction in an arc shape; Two supporting mechanisms are respectively located on both sides of the center line, are symmetrically arranged on the rail seat and can be opened and closed relative to each other between an expanded position and a closed position. Each supporting mechanism includes a sliding bracket and two simultaneous Movable support, the sliding support has a bearing plate portion, a support body and a sliding shaft, the bearing plate portion has a support surface and a back surface opposite to the support surface, the support body is connected to the back surface and has a connection to the The connecting end of the sliding shaft, the sliding shaft extends along the first direction and the two ends are respectively provided on one of the pair of inner slide rails to slide along the pair of inner slide rails, the equivalent movable bracket is respectively connected to the first direction The opposite sides of the supporting body are slidable relative to the supporting body and respectively corresponding to one of the outer slide rails and can slide along the outer slide rail; and Two synchronization mechanisms are respectively connected to the opposite sides of the rail seat in the first direction. Each synchronization mechanism includes two pivots located on both sides of the centerline and extending along the first direction, and two pivots respectively located at The pivots are pivotable pieces capable of being pivoted synchronously, and the pivoting pieces are respectively slidably connected with the adjacent synchronous brackets to enable the supporting mechanisms to rotate synchronously. Such as the two-axis hinge of claim 1, wherein the inner sliding rails are arcs of non-equal curvature, and when the supporting mechanisms are in the unfolded position, the sliding shafts of the sliding brackets are located near the center of the corresponding inner sliding rails The supporting surface is coplanar with the top surface of the rail seat. When the supporting mechanisms are in the folded position, the sliding shafts of the sliding brackets are located at the end of the corresponding inner sliding rail away from the center line, and the supporting surfaces are opposite to each other. The top surface is gradually inclined toward each other and spaced apart, so that the distance of the supporting surfaces on the side close to the top surface is greater than the distance on the side far away from the top surface. As claimed in claim 1, wherein the support body further has two first sliding grooves located on opposite sides in the first direction and extending along the second direction, and each synchronous support has a movable support The sliding part corresponding to the outer sliding rail sliding and extending in an arc shape, and a supporting part which abuts against the back of the bearing plate part and can slide along one of the adjacent first sliding grooves. According to claim 3, the two-axis hinge, wherein each synchronous bracket further has a second sliding groove extending along the second direction, and each pivoting member has a linkage that can slide along the corresponding second sliding groove When the supporting mechanisms are located in the unfolded position, the linkage portions are located at the end of the corresponding second sliding groove away from the center line, and when the supporting mechanisms are located in the retracted position, the linkage portions are located at the corresponding second sliding groove Near one end of the centerline. According to claim 4, the two-axis hinge, wherein each synchronization mechanism further includes a gear base fixedly connected to the track base and a synchronizer that is rotatably arranged on the gear base, and the synchronizer has A shaft portion extending along the second direction and two bevel gears respectively connected to opposite ends of the shaft portion, the bevel gears are respectively arranged corresponding to the pivoting parts, and each pivoting part also has a connection corresponding The pivot portion of the pivot, a main body portion connecting the pivot portion and the linkage portion, and an umbrella tooth portion formed on the pivot portion and meshed with the corresponding bevel gear, the synchronizing member makes the pivots The pieces pivot synchronously. According to claim 5, the two-axis hinge, wherein each synchronization mechanism further includes two torsion units respectively arranged on the pivots to provide positioning torque. According to claim 5, the two-axis hinge, wherein the gear seat has a main member and a limiting member, and the main member has two retaining members for the pivots to pass through and limit the pivots. Hole, and a limit slot for accommodating the synchronizer, the limiter has a plate body and a limit block protruding from the plate body toward the main member, the limit block and the main member jointly Synchronization part limit. The dual-axis hinge according to claim 1, wherein the rail seat is formed by combining two seat bodies side by side, each pair of inner slide rails are respectively formed on the opposite inner sides of the seat bodies, and each outer slide rail is respectively formed on the The relative outside of the seat body. The two-axis hinge according to claim 1, wherein the bearing plate portion extends to opposite sides in the first direction compared to the supporting body, and the back of the bearing plate portion is at the part on both sides of the supporting body The movable support can be leaned against.

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