TWM650027U - Flexible screen pivot that simplifies structure - Google Patents

Abstract

This creation is about a flexible screen pivot that can simplify the structure. The flexible screen pivot includes a base, a pair of fixed brackets and a pair of sliding brackets. The base includes an upper and lower base and a Upper cover; the above pair of fixed brackets are arranged on both sides of the base; one end of each sliding frame group is pivotably connected to a fixed bracket and the other end is connected to the base through a virtual axis structure, each virtual axis structure It includes arc-shaped grooves opened from the top of each base and the bottom of each upper cover and arc-shaped swing arms extending from each sliding frame group. Each arc-shaped swing arm is rotatably slidably connected to each arc-shaped groove. In this way, the flexible screen pivot device has the advantages of simplified structure and convenient manufacturing.

Description

Flexible screen pivot that simplifies structure

The invention relates to a pivot device, and in particular to a flexible screen pivot that can simplify the structure.

As the screen size of smart phones or tablets gradually increases, mobile phones or tablets with foldable screens are launched on the market. The foldable screen consists of a flexible screen that can be expanded or folded according to needs. Therefore, in mobile phones or tablets The body must also be equipped with a pivot that can carry the flexible screen.

However, although the flexible screen can be bent, if the bending degree is too large, damage such as screen breakage will still occur. Moreover, the pivot device cannot rotate stably, and there are common problems such as complex structure and excessive volume. Therefore, how to avoid the pivot structure being too complex, the curvature being too large when folded and closed, and how to reduce the size and weight is an important issue in the industry.

In view of this, the author has devoted himself to research on the above-mentioned existing technology and cooperated with the application of academic theory to try his best to solve the above-mentioned problems, which has become the goal of the author's improvement.

This invention provides a flexible screen pivot that can simplify the structure. It uses a virtual axis structure to include arcuate grooves opened from the top of each base and the bottom of each upper cover and extending from each sliding frame group. Each arc-shaped swing arm is rotatably slidably connected to each arc-shaped groove, so that the flexible screen pivot device has the advantages of simplified structure and convenient manufacturing.

In the embodiment of this invention, this invention provides a flexible screen pivot that can simplify the structure, including: a base, including a base and an upper cover assembled up and down; a pair of fixed brackets, On both sides of the base; and a pair of sliding frame groups, one end of which is pivotably connected to a fixed bracket and the other end of which is connected to the base through a virtual axis structure, each of the virtual axis structures It includes an arc-shaped groove opened from the top of each base and the bottom of each upper cover and an arc-shaped swing arm extending from each sliding frame group. Each arc-shaped swing arm is rotatably slidably connected to each arc-shaped groove.

Based on the above, the size of the arcuate groove and the arcuate swing arm on one side of the base is larger than the size of the arcuate groove and the arcuate swing arm on the other side of the base, making the flexible screen pivot a A large axis is formed on one side and a small axis is formed on the other side, so that the flexible screen pivot device of this invention has the design of large and small axes on both sides, and maintains rotation stability through the design of the large axis on one side, and through the small axis on one side. The design reduces the overall volume, allowing the flexible screen pivot to have a slim, lightweight and simple appearance.

Based on the above, arc-shaped grooves are opened from the top of the base and the bottom of the upper cover to simplify the structure of the virtual axis structure, so that the flexible screen pivot device has the advantages of simplified structure and convenient manufacturing.

10: Flexible screen pivot

1: base

11: Base

12: Upper cover

13:Front seat body

14:Rear seat body

15: Fixed piece

2: Fixed support frame

21: Container

22:Sleeve body

221:Socket

3:Sliding frame group

31:Sliding rack

311: Pivot hole

32:Screen bracket

321: Arc-shaped hole

4: Virtual axis structure

41:Arc groove

411: Arc groove

412:convex arc block

413:Bump

42:Arc swing arm

421: Curved piece

422:Arc guide trench

5: Auxiliary virtual axis structure

51:Arc rib

52:Arc groove

6:Rotation axis

61:Main gear

7: Swing link

8: Linkage mechanism

81: Driven gear

A:Cam group

A1: Rotating cam

A2: Fixed cam

D: Pivot axis

N: Nut

S: spring group

Figure 1 is a three-dimensional exploded view of the flexible screen pivot device of this invention.

Figure 2 is another three-dimensional exploded view of the flexible screen pivot device of this invention.

Figure 3 is another three-dimensional exploded view of the flexible screen pivot device of this invention.

Figure 4 is a three-dimensional assembled view of the flexible screen pivot device of this invention.

Figure 5 is another three-dimensional assembled view of the flexible screen pivot device of this invention.

Figure 6 is a schematic diagram of the first use state of the flexible screen pivot device of this invention.

Figure 7 is a schematic diagram of the second use state of the flexible screen pivot device of this invention.

Figure 8 is a schematic diagram of the third usage state of the flexible screen pivot device of this invention.

Figure 9 is a schematic diagram of the fourth usage state of the flexible screen pivot device of this invention.

Figure 10 is a schematic diagram of the fifth usage state of the flexible screen pivot device of this invention.

Figure 11 is a schematic diagram of the sixth usage state of the flexible screen pivot device of this invention.

Figure 12 is another three-dimensional assembled view of the flexible screen pivot device of this invention.

Figure 13 is a schematic diagram of the seventh usage state of the flexible screen pivot device of this invention.

Figure 14 is a schematic diagram of the eighth usage state of the flexible screen pivot device of this invention.

Figure 15 is a schematic diagram of the ninth usage state of the flexible screen pivot device of this invention.

Figure 16 is a schematic diagram of the tenth usage state of the flexible screen pivot device of this invention.

Figure 17 is a schematic diagram of the eleventh usage state of the flexible screen pivot device of this invention.

Figure 18 is a schematic diagram of the twelfth usage state of the flexible screen pivot device of this invention.

Figure 19 is another three-dimensional assembled view of the flexible screen pivot device of this invention.

Figure 20 is a schematic diagram of the thirteenth usage state of the flexible screen pivot device of this invention.

Figure 21 is a schematic diagram of the fourteenth usage state of the flexible screen pivot device of this invention.

Figure 22 is a schematic diagram of the fifteenth usage state of the flexible screen pivot device of this invention.

Figure 23 is a schematic diagram of the sixteenth usage state of the flexible screen pivot device of this invention.

Figure 24 is a schematic diagram of the seventeenth usage state of the flexible screen pivot device of this invention.

Figure 25 is a schematic diagram of the eighteenth usage state of the flexible screen pivot device of this invention.

The detailed description and technical content of this creation will be described below with the help of drawings. However, the attached drawings are only for illustrative purposes and are not intended to limit this creation.

Please refer to Figures 1 to 25. This invention provides a flexible screen pivot with a simplified structure. The flexible screen pivot 10 mainly includes a base 1, a pair of fixed brackets 2 and One pair of sliding racks 3.

As shown in Figures 1 to 25, the base 1 includes a base 11 and an upper cover 12 assembled from the upper and lower parts. Detailed description is as follows. The base 1 includes a front base 13, a rear base 14 and a set of components arranged side by side. There are a plurality of fixing pieces 15 between the front seat body 13 and the rear seat body 14. The front seat body 13 is composed of the above-mentioned base 11 and the upper cover 12 assembled up and down.

As shown in Figures 3 to 25, the pair of fixed supports 2 are arranged on both sides of the base 1. Each fixed support 2 is provided with a receiving slot 21 and an extended set of bodies 22. Each set 22 is away from the fixed supports. One end of the frame 2 is provided with a socket 221.

As shown in Figures 2 to 5, Figures 8 to 12, Figures 15 to 19, and Figures 22 to 25, one end of each sliding frame group 3 is pivotably connected to a fixed bracket 2 and the other end is connected to the base. The bases 1 are connected by a virtual axis structure 4. Each virtual axis structure 4 includes an arc-shaped groove 41 opened from the top of each base 11 and the bottom of each upper cover 12 and an arc-shaped swing arm 42 extending from each sliding frame group 3. , the arc surface of the arc-shaped groove 41 can define a virtual axis, and each arc-shaped swing arm 42 is rotatably slidably connected to each arc-shaped groove 41 with the virtual axis defined by the arc-shaped groove 41 as the center point.

Detailed description is as follows. Each arc-shaped groove 41 is composed of an arc-shaped groove 411 recessed from the top of each base 11 and a convex arc block 412 protruding from the bottom of each upper cover 12 toward each arc-shaped groove 411. The arc-shaped swing arm 42 is an arc-shaped piece 421 whose shape matches each arc-shaped groove 411 and each convex arc block 412 .

In addition, the two arc-shaped grooves 411 in this embodiment are arranged offset from each other, but this is not a limitation. Two protrusions 413 respectively protrude from the inner bottom walls of the two arc-shaped grooves 411 on the side away from each other. The bottom of the arc-shaped piece 421 is provided with two arc-shaped guide grooves 422. Each of the two protruding points 413 can be slidably accommodated in each of the two arc-shaped guide grooves 422 relative to the two arc-shaped guide grooves 422, so that the arc-shaped swing arm 42 It is limited by the two protrusions 413 and swings stably relative to the arc-shaped groove 41 .

Among them, the size of the arc-shaped groove 41 and the arc-shaped swing arm 42 on one side of the base 1 is larger than the size of the arc-shaped groove 41 and the arc-shaped swing arm 42 on the other side of the base 1, that is, the size of the arc-shaped groove 41 and the arc-shaped swing arm 42 on one side of the base 1 1 The inner arc length of the arcuate groove 411 on one side is greater than the inner arc length of the arcuate groove 411 on the other side of the base 1, and the outer arc length of the arcuate piece 421 on one side of the base 1 It is longer than the outer arc length of the arc-shaped piece 421 located on the other side of the base 1 .

Further description is as follows. Each sliding frame group 3 includes a sliding frame 31. One end of each sliding frame 31 is pivotally connected to each fixed support frame 2, and the other end is formed with arc-shaped swing arms 42 and is provided with a fixed frame 31. There is a pivot hole 311 between the support frame 2 and each arc-shaped swing arm 42 .

Furthermore, each sliding frame group 3 further includes a screen bracket 32. One end of each screen bracket 32 is provided with an arc-shaped strip hole 321, and the other end is connected to each fixed bracket 2 through an auxiliary virtual axis structure 5. , the auxiliary virtual axis structure 5 includes one or a plurality of arc-shaped ribs 51 protruding from one of each fixed bracket 2 and each screen bracket 32, and the other of each fixed bracket 2 and each screen bracket 32 One or a plurality of arc-shaped grooves 52 are opened. The arc surface of the arc-shaped groove 52 can define a virtual axis. The arc-shaped rib 51 can rotate and slide with the virtual axis defined by the arc-shaped groove 52 as the center point. Connected to the arc groove 52.

Among them, the number of arc-shaped ribs 51 and arc-shaped grooves 52 in this embodiment is two respectively. Each two arc-shaped ribs 51 protrudes from the two inner walls of each receiving groove 21 , and each two arc-shaped grooves 52 protrudes from each screen bracket 32 . Two outer side walls of the screen bracket 32 are opened, so that each screen bracket 32 is rotatably embedded in each receiving slot 21 .

As shown in Figures 3, 8 to 12, 15 to 19, and 22 to 25, the flexible screen pivot 10 of the present invention further includes a pair of pivot shafts D, each pivot shaft D passing through each The arc-shaped strip holes 321 are pivotally connected to the pivot holes 311 , so that each screen bracket 32 can rotate and slide relative to each slidable frame 31 through each arc-shaped strip hole 321 .

As shown in Figures 1, 3 to 7, 12 to 14, and 19 to 21, the flexible screen pivot 10 of the present invention further includes a pair of rotating shafts 6, a pair of swing links 7 and a Linkage mechanism 8. The pair of rotating shafts 6 are pivotally connected to the base 1 and have two main gears 61 extending therefrom. One end of each swing link 7 is respectively sleeved on each rotating shaft 6 and rotates following each rotating shaft 6. Each swing link 7 The other end is slidably sleeved on each sleeve body 22, that is, each swing The other end of the connecting rod 7 is slidably inserted into each socket 221. The linkage mechanism 8 includes two driven gears 81 disposed between the two main gears 61 in meshing manner. The two driven gears 81 drive the two main gears 61 to rotate in opposite directions. Rotate synchronously.

Among them, each main gear 61 and each rotation shaft 6 are made of metal injection molding (Metal Injection Molding, MIM) and are integrally extended and molded with each other.

In addition, the two main gears 61 and the two driven gears 81 are pivotally connected between a plurality of fixed pieces 15 , and the pair of swing links 7 are provided between the rear seat body 14 and one of the fixed pieces 15 .

As shown in Figures 1, 3 to 5, 12, and 19, the flexible screen pivot 10 of the present invention further includes a cam group A. The cam group A includes a cam group A that is each sleeved on each rotation axis 6 and follows each Two rotating cams A1 that rotate on the rotating shaft 6, and two fixed cams A2 that are integrally formed and sleeved on each rotating shaft 6 and abut against the two rotating cams A1.

As shown in Figures 1, 3 to 5, 12, and 19, the flexible screen pivot 10 of the present invention further includes two nuts N and a spring group S. Each nut N is locked to each rotation axis. 6 end, the cam group A is arranged between the rear seat body 14 and the two nuts N, and the spring group S is sleeved on each rotating shaft 6 and sandwiched between the cam group A and each nut N.

Among them, the spring group S exerts force on the fixed cam A2, causing the fixed cam A2 to contact the rotating cam A1, and the cam surfaces provided by the rotating cam A1 and the fixed cam A2 push the spring group S, and the spring group S generates The reaction force is applied to the rotating shaft 6 and the swing link 7 via the rotating cam A1 to generate a torsion.

In addition, the size of the rotating shaft 6, swing link 7, cam group A, nut N and spring group S located on one side of the base 1 is larger than that of the rotating shaft 6, swing link 7 located on the other side of the base 1 7. Dimensions of cam group A, nut N and spring group S.

Please refer to Figures 4 to 11, which show the unfolded state of the flexible screen pivot 10, the electronic device 100 and the flexible screen 200 of this invention; please refer to Figures 12 to 18, which show the flexible screen pivot of this invention. device 10. The state when the electronic device 100 and the flexible screen 200 are rotated and folded; refer to Figures 19 to 25, which are the states of the flexible screen pivot 10, the electronic device 100 and the flexible screen 200 when they are folded to each other. condition. Among them, the front seat body 13 , the rear seat body 14 and the fixed bracket 2 are fixed to the electronic device 100 , and the screen bracket 32 is fixed to the flexible screen 200 .

Detailed description is as follows. During the process of the flexible screen pivot 10, the electronic device 100 and the flexible screen 200 rotating and folding to each other, the electronic device 100 will drive each fixed bracket 2 to rotate relative to the base 1. At the same time, Each fixed bracket 2 moves synchronously on the left and right sides through each swing link 7, each main gear 61 and each driven gear 81, and drives the sliding bracket 31 and the screen bracket 32 to rotate and fold together, wherein the sliding bracket 31 and the base bracket 32 are rotated and folded together. A virtual axis structure 4 is formed at the connection point of the base 1, and the arc-shaped swing arm 42 moves to an outside of the base 1 through the virtual axis structure 4 to form a wider accommodation space.

At the same time, because one end of the screen support 32 rotates and slides relative to the sliding frame 31 through the arc-shaped strip hole 321 and the pivot axis D, and the other end moves relative to the fixed support 2 through the auxiliary virtual axis structure 5, another wider one is formed. accommodation space.

Thereby, the slidable frame 31 can move to the outside of the base 1 through the virtual axis structure 4 , one end of the screen bracket 32 can rotate and slide relative to the slidable frame 31 , and the other end can be relatively fixed through the auxiliary virtual axis structure 5 The support frame 2 moves, thereby increasing the overall length of the flexible screen pivot 10, allowing the flexible screen 200 to bend smoothly and with enough space at the bend to form a water drop shape, so as to achieve the flexibility of the flexible screen 200. The curvature of the bending part is greatly reduced, thereby preventing the flexible screen 200 from being damaged due to excessive bending.

In addition, the size of the arc groove 41, the arc swing arm 42, the rotating shaft 6, the swing link 7, the cam group A, the nut N and the spring group S located on one side of the base 1 is larger than that of the base 1 The dimensions of the arc groove 41, arc swing arm 42, rotating shaft 6, swing link 7, cam group A, nut N and spring group S on the other side make the flexible screen pivot 10 form a There is a large axis and a small axis formed on the other side, so that the flexible screen pivot 10 of this invention has the design of large and small axes on both sides, and maintains rotation stability through the design of the large axis on one side. And through the design of a small axis on one side, the overall volume is reduced, so that the flexible screen pivot 10 has a simple and lightweight appearance.

Furthermore, an arc-shaped groove 411 is recessed on the top of the base 11 and the bottom of the upper cover 12 protrudes the convex arc block 412 into the arc-shaped groove 411 to form the arc-shaped groove 41. Therefore, the arc-shaped groove 41 is formed from the top of the base 11 and the upper cover. The opening at the bottom of 12 can simplify the structure of the virtual axis structure 4, so that the flexible screen pivot 10 has the advantages of simplified structure and convenient manufacturing.

To sum up, the flexible screen pivot device of this invention that can simplify the structure can indeed achieve the expected purpose of use, solve the deficiencies of conventional knowledge, and has industrial applicability, novelty and progress, and is fully consistent with the patent application. The essential requirement is to file an application in accordance with the patent law to protect the rights of the creator.

10: Flexible screen pivot

1: base

11: Base

12: Upper cover

13:Front seat body

14:Rear seat body

15: Fixed piece

2: Fixed support frame

21: Container

22:Sleeve body

221:Socket

3:Sliding frame group

31:Sliding rack

32:Screen bracket

411: Arc groove

42:Arc swing arm

421: Curved piece

5: Auxiliary virtual axis structure

51:Arc rib

52:Arc groove

61:Main gear

7: Swing link

8: Linkage mechanism

81: Driven gear

A:Cam group

A1: Rotating cam

A2: Fixed cam

N: Nut

S: spring group

Claims (15)

A flexible screen pivot device that can simplify the structure, including: a base, including a base and an upper cover assembled from the upper and lower parts; a pair of fixed brackets arranged on both sides of the base; and a pair of sliding The frame assembly has one end pivotably connected to the fixed bracket and the other end connected to the base through a virtual axis structure. Each virtual axis structure includes openings from the top of each base and the bottom of each upper cover. An arc-shaped groove and an arc-shaped swing arm extending from each sliding frame group, each arc-shaped swing arm is rotatably slidably connected to each arc-shaped groove. The flexible screen pivot with simplified structure as described in claim 1, wherein each arc-shaped groove is composed of an arc-shaped groove concave from the top of each base and an arc-shaped groove from the bottom of each upper cover. It is composed of a convex arc block protruding inward, and each arc-shaped swing arm is an arc-shaped piece shaped to match each arc-shaped groove and each convex arc block. The flexible screen pivot with a simplified structure as described in claim 2, wherein two protrusions respectively protrude from the inner bottom walls of the two arc-shaped grooves away from each other, and each of the arc-shaped pieces has Two arc-shaped guide grooves are provided at the bottom, and each of the two protrusions can be slidably accommodated in each of the two arc-shaped guide grooves relative to the two arc-shaped guide grooves. The flexible screen pivot with simplified structure as described in claim 2, wherein the two arc-shaped grooves are offset from each other. The flexible screen pivot with simplified structure as described in claim 1, wherein the arcuate groove and the arcuate swing arm on one side of the base are larger in size than those on the other side of the base. The dimensions of the arc-shaped groove and the arc-shaped swing arm. The flexible screen pivot with a simplified structure as claimed in claim 1, wherein each sliding frame group includes a sliding frame, one end of each sliding frame is pivotally connected to each of the fixed brackets, and the other The end is formed with each arc-shaped swing arm and is provided with a pivot hole located between each fixed bracket and each arc-shaped swing arm. The flexible screen pivot device with simplified structure as described in claim 6, wherein each sliding frame group further includes a screen bracket, and each screen bracket is provided with an arc-shaped strip hole at one end, and the other end is connected to Each fixed bracket is connected by an auxiliary virtual axis structure, the auxiliary virtual axis structure includes at least one arc-shaped rib protruding from one of each fixed bracket and each screen bracket, and each fixed bracket At least one arc-shaped groove is opened in the other one of the bracket and each screen bracket, and the at least one arc-shaped rib is rotatably slidably connected to the at least one arc-shaped groove. The flexible screen pivot device with a simplified structure as claimed in claim 7, further comprising a pair of pivot shafts, each pivot shaft passing through each arc-shaped strip hole and pivotally connected to the pivot hole, thereby Each of the screen brackets can rotate and slide relative to each of the slidable brackets through each of the arc-shaped strip holes. The flexible screen pivot with a simplified structure as described in claim 7, wherein the number of arc-shaped ribs and arc-shaped grooves is two respectively, each fixed bracket is provided with a receiving groove, and each of the two arc-shaped ribs is provided with a receiving groove. Two inner side walls of the receiving slot protrude, and each of the two arc-shaped grooves is opened from two outer side walls of the respective screen bracket, so that each of the screen brackets is rotatably embedded in each of the receiving slots. The flexible screen pivot device with a simplified structure as claimed in claim 1, which further includes a pair of rotating axes, a pair of swing links and a linkage mechanism, the pair of rotating axes are pivotally connected to the base and extend from Two main gears, one end of the pair of swing connecting rods is respectively sleeved on each of the rotation axes and rotates with each of the rotation axes. The linkage mechanism includes two driven gears that are disposed in mesh with each other between the two main gears. The two slave gears are engaged with each other. The moving gear drives the two main gears to rotate synchronously in opposite directions. The flexible screen pivot with a simplified structure as claimed in claim 10, wherein each of the fixed brackets extends with a set of bodies slidably sleeved on the other end of each of the swing links, and each of the sets An end of the body away from each fixed bracket is provided with a socket, and each swing link is slidably inserted into each socket. The flexible screen pivot with a simplified structure as claimed in claim 10, wherein the base includes a front base body, a rear base body and a plurality of spaced apart and juxtaposed front base bodies and a plurality of rear base bodies arranged between the front base body and the rear base body. Fixed piece, the front seat body is composed of the upper and lower assembly of the base and the upper cover, the two main gears and the two driven gears are pivotally connected between the plurality of fixed pieces, and the pair of swing links are arranged on the rear seat between the body and one of the fixed pieces. The flexible screen pivot with a simplified structure as described in claim 12 further includes a cam group, the cam group includes two rotating cams that are respectively sleeved on each of the rotational axes and follow the rotation of each of the rotational axes, and Two fixed cams are integrally formed with each other and are sleeved on each of the rotating shafts and abutted against the two rotating cams. The flexible screen pivot device with simplified structure as described in claim 13 further includes two nuts and a spring group, each of the nuts is locked at the end of each of the rotation shafts, and the cam group is arranged on the rear seat Between the body and the two nuts, the spring group is sleeved on each of the rotating shafts and sandwiched between the cam group and each of the nuts. The flexible screen pivot with a simplified structure as described in claim 14, wherein the rotation axis, the swing link, the cam group, the nut and the spring group located on one side of the base The size is larger than the size of the rotating shaft, the swing link, the cam set, the nut and the spring set on the other side of the base.

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