TWI706710B - Folding screen device - Google Patents

Abstract

An outward-folding screen device includes two hinge mechanisms, a housing unit and a screen protection module. The housing unit includes two housings connected to the hinge mechanism. The casing is divided into a first casing and a second casing. The second casing also has a plurality of buffer grooves and a plurality of hollow areas, and each buffer groove has a normal end and a buffer end. The housing unit also includes a carrying plate slidably disposed on the second housing and connected with the first housing to the flexible screen. The screen protection module includes a plurality of buffer blocks respectively slidably arranged in the buffer groove and connected to the carrying plate, and a plurality of elastic members respectively arranged in the hollow area and respectively connected to the second casing and the carrying plate at two ends. The buffer block relatively moves in the direction from the normal end to the buffer end, and the elastic member constantly provides an elastic expansion force to the second casing.

Description

Folding screen device

The invention relates to a screen device, in particular to an outward-folding screen device.

With the evolution of the times, smart phones have almost become electronic devices with one hand, and coupled with the improvement of processor and battery performance, people are not changing their phones as frequently as when these products first came out. In order to bring more freshness to consumers and meet the needs of large screens and convenient portability, foldable smart phones have also appeared on the market. Foldable smartphones can be divided into internal folding and external folding. The internal folding means that when the screen is folded into two parts, the two parts of the screen are folded in the case face to face, while the outward folding type is Means that the two parts of the screen are folded back to back. Among them, the size of an outward-folding smart phone in the folded state is about the size of the existing common smart phone. Consumers can directly operate and use it in the folded state, and it can be expanded to improve the visual experience when watching movies or playing mobile games. , It is the external foldable smart phone that is more expected by the public. However, during the folding process of some outward-folding smartphones, the difference between the inner and outer diameters of the screen and the bottom case may cause the screen to be pulled. Some outward-folding smartphones are not supported by the hinge at the center of the screen after folding. It may cause damage to the screen.

Therefore, one of the objectives of the present invention is to provide an outward-folding screen device that can overcome the problems of the prior art.

Therefore, in some embodiments of the present invention, the outward-folding screen device is suitable for connecting a flexible screen. The outward-folding screen device includes two hinge mechanisms, a housing unit, and a screen protection module. The hinge mechanisms are arranged at intervals along a front-to-back direction. The housing unit defines a joint surface and a folding surface on opposite sides, and the joint surface is suitable for connecting the flexible screen. The shell unit includes two casings and a carrying board. The casings are connected to the hinge mechanisms in a left-to-right direction, and can be rotated between a flat position where the joint surface is in a flat state and a folded position where the joint surface is located opposite to the folded surface, Each casing has a first side connected to the hinge mechanisms and a second side opposite to the first side, defining a reset direction from the second side to the first side The casings are divided into a first casing and a second casing. The second casing also has a plurality of buffer grooves extending along the reset direction, and a plurality of hollow areas, and each buffer groove has an opposite position A normal end and a buffer end of the end, the normal end is farther from the first side than the buffer end. The carrier plate is slidably disposed on the second casing and is connected to the flexible screen with the first casing, so that a part of the flexible screen is fixedly connected to the first casing , The other part is slidably connected to the supporting board relative to the second casing. The screen protection module is arranged in the second casing and includes a plurality of buffer blocks and a plurality of elastic parts. The buffer blocks are respectively slidably arranged in the buffer grooves and connected to the carrying board. The elastic pieces are respectively arranged in the hollow areas and are respectively connected to the second casing and the supporting plate at two ends. When the buffer blocks move relative to the direction from the normal end to the buffer end, the The elastic member constantly provides an elastic expansion force resetting along the reset direction to the second casing.

In some embodiments, each casing further has a base wall, the top surface of the base wall of the second casing is lower than the top surface of the base wall of the first casing, and the buffer grooves are arranged in two rows. Placed in the second The base wall of the casing is respectively adjacent to the first side and the second side.

In some embodiments, the hollow areas are arranged on the base wall of the second casing and located between the two rows of buffer grooves.

In some embodiments, the second casing further has a plurality of limiting holes respectively connected to the hollow areas, and the screen protection module further includes a plurality of limiting holes respectively connected to the corresponding One end of the elastic piece is connected to the linkage block of the carrying board.

In some embodiments, the base wall has two connecting grooves recessed from the first side edge for the hinge mechanisms.

In some embodiments, the housing unit further includes a housing plate located between the housings and covering the hinge mechanisms, and the first housing, the housing plate and the carrying plate jointly define the joint surface.

The present invention has at least the following effects: through the design of the screen protection module, a part of the flexible screen is fixedly connected to the first casing, and the other part is slidably connected relative to the second casing In the carrying plate, once the hinge mechanism has a defect that causes the cabinet to be unable to rotate normally to the folded position, the screen protection module can prevent the flexible screen from being excessively pulled, and the second machine can be protected by the elastic member. The shell provides an elastic expansion force along the reset direction, so that the second shell can move back to the position when the shells are in the folded position relative to the bearing plate.

100: Folding screen device

1: housing unit

11: Chassis

11a: The first housing

11b: second case

111: upper shell

112: lower shell

112a: Folding surface

113: installation space

114: basal wall

114a: first side

114b: second side

114c: connection slot

114d: buffer slot

1141: Normal End

1142: buffer end

114e: hollow area

114f: limit hole

115: Wall

12: Shell

13: Carrying board

14: Joint surface

2: Screen protection module

21: buffer block

22: Linkage block

23: Elastic

3: Hinge mechanism

31: Tube seat

311: Connecting Board

312: Socket

313: Lock Block

32: drive shaft

321: Transmission rod

321a: tangent plane segment

321b: arc surface segment

322: Sync Rod

322a: guide groove

323: Extension rod

323a: side surface

323b: Guide block

33: Sync

34: Torque film

35: connection unit

351: connection end

352: Chain Block

352a: chain plate

353: Bolt

36: linkage unit

361: Rotating Plate

361a: Board body

3611: upper surface

3612: lower surface

3613: first outer edge

3614: track hole

3615: sector slot

3615a: Center of circle

3615b: radius side

3615c: arc edge

3616: Shaft hole

3617: curved hole

3618: unfold end

3619: folded end

361b: Shaft sleeve

3611: piercing

361c: guide plate

362: Sliding Block

363: Linkage

363a: connecting rod

363b: Shaft

363c: The first guide

363d: The second guiding part

364: drive plate

364a: Side convex joint

364b: second outer side

364c: drive hole

365: driven seat

365a: driven board

365b: track block

365c: driven hole

365d: track groove

37: Shaft cap

371: first fixing hole

4: connecting pipe

41: second fixing hole

5: Skeleton structure

51: The first steel bar

52: steel plate

53: The second steel bar

54: even board

6: bezel

B1: bending direction

D1: Left and right direction

D2: front and rear direction

R1: Reset direction

d1: the first predetermined distance

d1’: the first predetermined distance

d2: second predetermined distance

L1: first axis

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is a perspective view of an embodiment of the outward-folding screen device of the present invention, illustrating one of the embodiments The two casings of the housing unit are located in a flat position; Figure 2 is a side view showing that when the casings are in the flat position, the two baffles of this embodiment are exposed on the folding surface; Figure 3 is A perspective view illustrating that the casings are in a folded position; FIG. 4 is another angle view of FIG. 3; FIG. 5 is a side view of the casings in the folded position; FIG. 6 is a perspective exploded view of the embodiment Figure 7 is a perspective exploded view illustrating one of the casings, a carrier plate of the housing unit and a screen protection module of this embodiment; Figure 8 is a perspective view illustrating two hinge mechanisms of this embodiment , A connecting pipe and two baffles; Figure 9 is a perspective exploded view of Figure 8; Figure 10 is a perspective view of one of the hinge mechanisms of this embodiment; Figure 11 is a perspective exploded view of Figure 10; Figure 12 is A perspective view illustrating a drive shaft of the hinge mechanism; FIG. 13 is another angle view of FIG. 12; FIG. 14 is a perspective view illustrating a synchronizer of the hinge mechanism; FIG. 15 is a linkage unit of the embodiment 3D exploded view; Figure 16 is a perspective view of a linkage of the linkage unit; Figure 17 is a perspective view illustrating that a skeleton structure of this embodiment is covered on the hinge mechanisms and the connecting pipe; Figure 18 is a three-dimensional exploded view of Figure 17; Figure 19 is a schematic top view illustrating that when the casings are in the flat position, a first outer edge of a rotating plate of the linkage unit is aligned with the linkage unit A second outer side of a drive plate; Figure 20 is a bottom view, illustrating that when the casings are in the flat position, a second guide portion of the linkage is located in an arc-shaped hole of the rotating plate An unfolded end; Figure 21 is a schematic side view illustrating that the casings are bent along the bending directions; Figure 22 is a schematic side view illustrating that when the casings are bent along the bending directions, The frame structure and the state of the hinge mechanisms; Figure 23 is a three-dimensional view illustrating the state of each hinge mechanism when the casings are bent along the bending directions; Figure 24 is a schematic top view illustrating the machines During the rotation of the shell, the first outer side of the rotating plate and the second outer side of the transmission plate move a first predetermined distance relative to each other, and a first guide portion of the linkage is driven by the transmission plate to move the The first predetermined distance; Figure 25 is a schematic bottom view illustrating that the second guide portion of the linkage moves a second predetermined distance along the arc-shaped hole during the rotation of the casings; Figure 26 is a perspective view illustrating When the cabinets are rotated to the folded position, the state of the skeleton structure and the hinge mechanisms; Figure 27 is a perspective view illustrating the state of each hinge mechanism when the cabinets are rotated to the folded position; Figure 28 is A schematic top view illustrating that when the casings are rotated to the folded position, the linkage of the A connecting rod portion is close to one of the radius sides of the arc-shaped slot; and Figure 29 is a bottom view, illustrating that when the casings are rotated to the folded position, the second guide portion of the linkage moves to the arc-shaped hole One folded end.

1 to 5, an embodiment of the outward-folding screen device 100 of the present invention is suitable for connecting a flexible screen (not shown), and can be folded outward along the bending direction B1 as shown in FIG. 2 Fold the flexible screen to the state shown in FIGS. 3 to 5. In this embodiment, "flexible" means that the structure and material can bend and deform to a certain extent after being stressed. Therefore, the flexible screen can also be called a flexible screen or a flexible screen. Is limited.

With reference to FIGS. 6 and 7, the outward-folding screen device 100 includes a housing unit 1, a screen protection module 2, two hinge mechanisms 3, a connecting pipe 4, a skeleton structure 5, and two baffles 6.

The housing unit 1 includes two housings 11, a housing 12, and a supporting board 13. The casings 11 are respectively connected to the left and right sides of the hinge mechanisms 3 in a left and right direction D1. In this embodiment, each casing 11 has an upper casing 111 and a lower casing 112 assembled on the bottom side of the upper casing 111, and the bottom side of the upper casing 111 defines an installation space. In the process of manufacturing the outward-folding screen device 100, a plurality of electronic components (not shown) can be pre-arranged in the installation space 113 and electrically connected with the flexible screen, and then the lower casing 112 is assembled to the upper shell 111. However, in other implementation aspects, each housing 11 may also be a one-piece and integrated structure, which is not limited to this embodiment. The upper shell 111 has a base wall 114 and a surrounding wall 115 extending upward from the periphery of the base wall 114. The base wall 114 has a first side 114a adjacent to the hinge mechanisms 3, and a second side opposite to the first side 114a The side 114b and the two connecting grooves 114c that are spaced apart from the first side 114a toward the second side 114b are recessed to provide the connecting grooves 114c for the hinge mechanisms 3 respectively.

In this embodiment, the casings 11 are divided into a first casing 11a located on the left side of the figure and a second casing 11b located on the right side of the figure. The height of the top surface of the base wall 114 of the second casing 11b is slightly lower than the top surface of the base wall 114 of the first casing 11a, so that the supporting board 13 can be provided correspondingly. The base wall 114 of the second housing 11b also has a plurality of buffer grooves 114d arranged in two rows and adjacent to the first side 114a and the second side 114b, and a plurality of buffer grooves 114d arranged in the two rows The hollow areas 114e in between, and a plurality of limiting holes 114f respectively connected to the hollow areas 114e. The direction from the second side 114b to the first side 114a is defined as a reset direction R1. The extending direction of each buffer groove 114d is parallel to the reset direction R1, and has a normal end 1141 and a buffer end 1142 located at opposite ends. The normal end 1141 is farther from the first side 114a than the buffer end 1142 . The lower shell parts 112 of the casings 11 jointly define a folding surface 112a. The shell plate 12 is located between the casings 11 and covers the skeleton structure 5 and the hinge mechanisms 3, and can be bent in cooperation with the hinge mechanisms 3.

The carrying plate 13 is disposed on the top surface of the base wall 114 of the second casing 11b, and together with the top surface of the base wall 114 of the first casing 11a and the top surface of the casing plate 12, defines a connection to the flexible The joint surface of the screen 14. The bottom side of the supporting board 13 is connected to the screen protection module 2 so as to be slidable relative to the second casing 11b. Specifically, in this embodiment, the screen protection module 2 includes a plurality of buffer blocks 21, a plurality of linkage blocks 22 and a plurality of elastic members 23. The buffer blocks 21 are respectively slidably disposed in the buffer grooves 114 d of the second casing 11 b and connected to the bottom side of the supporting board 13. The linkage blocks 22 are respectively arranged in the limiting holes 114f and connected to the bottom side of the carrying plate 13 (in order to clearly show the position of the limiting holes 114f, the center of FIG. 7 The elastic member 23 and the linkage block 22 are hidden and displayed). The elastic members 23 are respectively disposed in the hollow areas 114e, and two ends of each elastic member 23 are respectively connected to the second casing 11b and the corresponding linkage block 22. In this embodiment, each elastic member 23 is pre-compressed and arranged in the hollow areas 114e. When the buffer blocks 21 move from the normal end 1141 to the buffer end 1142, the elastic members 23 Both ends of the second housing 11b, the linkage block 22, and the supporting plate 13 can be constantly provided with elastic expansion force to reset the second housing 11b in the reset direction R1. The screen protection module 2 is used to prevent the flexible screen from being pulled and damaged when the outward-folding screen device 100 is abnormally bent. The specific method will be detailed in the following paragraphs.

The hinge mechanisms 3 are arranged at intervals between the casings 11 in a front-rear direction D2 and are connected to the casings 11 in the left-right direction D1, so that the casings 11 can be shown in FIGS. 1 and 2 As shown, the joint surface 14 rotates between a flat position in which the joint surface 14 is in a flat state and a folded position of the joint surface 14 located on the opposite outer side of the folding surface 112a as shown in FIGS. 3 to 5.

Referring to FIGS. 8 to 11, each of the hinge mechanisms 3 in the front-rear direction D2 has one end through the connecting tube 4 to be connected to each other. Each hinge mechanism 3 includes a tube base 31, two transmission shafts 32, a synchronizing member 33, a plurality of torsion plates 34, a connecting unit 35, two linkage units 36, and a shaft cap 37.

The tube base 31 has a connecting plate portion 311 extending in the front-rear direction D2, two socket portions 312 connected to the front and rear ends of the connecting plate portion 311 at intervals, and two sleeve portions 312 arranged at intervals on the connecting plate portion 311 Lock block 313 on the top side. With reference to Figures 12 to 14, the transmission shafts 32 each pass through the sleeve portions 312 along the front and rear direction D2, and each transmission shaft 32 has a transmission rod portion located between the sleeve portions 312 321. A synchronization rod portion 322 adjacent to one end of the transmission shaft 32, and another adjacent to the transmission shaft 32 The end of the extension rod 323. The transmission rod portion 321 has two vertically connected tangent plane sections 321a, and a circular arc section 321b connected to the tangent plane sections 321a. The synchronization lever 322 has two guide grooves 322a. The extension rod portion 323 has a polygonal cross-section, and the extension rod portions 323 of the transmission shafts 32 respectively pass through the two ends of the connecting tube 4 to connect the hinge mechanisms 3 to each other. The synchronizing member 33 is disposed between the synchronizing rod portions 322 of the transmission shafts 32, and has two arc-shaped concave side surfaces 323a on opposite sides to respectively engage the synchronizing rod portions 322, and Four guide blocks 323b respectively disposed on the side contact surfaces 323a in pairs corresponding to the guide grooves 322a of the synchronization rod portions 322. The synchronizing member 33 is used to make the transmission shafts 32 rotate synchronously. In a modified embodiment, the number of guide grooves 322a of the synchronization rod 322 can also be one, and the number of guide blocks 323b on each side surface 323a can also be adjusted to one correspondingly. The torsion plates 34 are stacked in the front-rear direction D2 and sleeved on the extension rod portions 323, and each torsion plate 34 is sleeved on the extension rod portions 323 at the same time, by controlling the The number can adjust the torque of the transmission shafts 32 accordingly.

10 and 11, the connecting unit 35 is bendably fixed between the lock block portions 313 along the left-right direction D1, and the connecting unit 35 has two connecting end portions 351 respectively located at the left and right ends. In this embodiment, the connecting unit 35 is illustrated by taking a chain as an example, and has a plurality of chain blocks 352 arranged along the left-right direction D1, and a plurality of bolts 353 connected in series with the chain blocks 352. The chain blocks 352 are alternately arranged in two rows in the front-rear direction D2, and each chain block 352 is formed by superimposing a plurality of chain plates 352a in the front-rear direction D2. Two of the plug pins 353 respectively located at the connecting end portions 351 of the connecting unit 35 are also pin-connected to the linkage units 36, and one of the plug pins 353 located at the center of the connecting unit 35 passes through the lock block portions 313 along a line. And parallel to and on the drive shafts 32 The square first axis L1 is pin-connected to the lock block parts 313. In a modified embodiment, the connecting unit 35 can also be other rigid and bendable elements, and is not limited to a chain.

Referring to FIGS. 6, 10 and 11, the two linkage units 36 are respectively connected to the transmission shafts 32, the casings 11 and the connecting ends 351 of the connecting unit 35 in the left-right direction D1. 15, specifically, each linkage unit 36 has a rotating plate 361, two sliding blocks 362, a linkage 363, a transmission plate 364, and a driven seat 365.

The rotating plate 361 has a plate body 361a, a sleeve portion 361b connected to one side of the plate body 361a, and two guide plate portions 361c respectively protruding from the front and rear sides of the plate body 361a. The board body 361a has an upper surface 3611 and a lower surface 3612 located on opposite sides, a first outer side 3613 located at the opposite position of the sleeve portion 361b, two penetrating through the upper surface 3611 and the lower surface 3612 and extending The direction is parallel to the rail holes 3614 of the guide plate portions 361c, and a fan-shaped slot 3615 formed on the upper surface 3611 and located between the rail holes 3614. The sliding blocks 362 are respectively slidably disposed in the track hole 3614. The fan-shaped groove 3615 defines a center 3615a, two radius sides 3615b, and an arc side 3615c connected to the radius sides 3615b. The plate body 361a also has a shaft hole 3616 located in the fan-shaped slot 3615 and adjacent to the center 3615a of the fan-shaped slot 3615, and a shaft hole 3616 located in the fan-shaped slot 3615 and away from the center 3615a of the fan-shaped slot 3615 and along the center of the fan-shaped slot 3615. The arc 3615 c penetrates the arc holes 3617 of the upper surface 3611 and the lower surface 3612. The arc-shaped hole 3617 has an expanded end 3618 and a folded end 3619. The sleeve portion 361b defines a through slot 3611 formed along the front and rear direction D2, and the shape of the through slot 3611 matches the corresponding tangent plane sections 321a and the arc surface section 321b of the transmission rod portion 321, For the transmission rod 321 to penetrate and drive the rotating plate 361 correspondingly.

With reference to FIG. 16, the linkage 363 is disposed in the fan-shaped groove 3615, and has a connecting rod portion 363a with the same length as the radius sides 3615b, and a connecting rod portion 363a located on the bottom side of the connecting rod portion 363a and adjacent to the connecting rod portion. One end of 363a is pivoted on the shaft portion 363b of the shaft hole 3616, a first guide portion 363c located on the top side of the connecting rod portion 363a, and a first guide portion 363c located on the bottom side of the connecting rod portion 363a and compared to the first guide The portion 363c is away from the shaft portion 363b and penetrates the second guiding portion 363d of the arc hole 3617.

The transmission plate 364 is connected to the corresponding connecting end 351 and is slidably disposed on the upper surface 3611 of the plate body 361a. In detail, the bottom side of the transmission plate 364 is connected to the sliding blocks 362 and can slide along the track holes 3614 relative to the rotating plate 361. In addition, the transmission plate 364 has a side protruding portion 364a, a second outer side 364b located opposite to the side protruding portion 364a, and a transmission hole 364c adjacent to the second outer side 364b. The side protruding portion 364a is provided for the corresponding pin connection of the plug 353 located at the connecting end portion 351 of the connecting unit 35. The transmission hole 364c has an oval shape and is correspondingly penetrated by the first guiding portion 363c of the linkage 363. In a modified embodiment, the number of track holes 3614 and sliding blocks 362 can also be adjusted to only one, as long as the transmission plate 364 can slide relative to the rotating plate 361.

The driven seat 365 is disposed in the corresponding connecting groove 114c, and has a driven plate 365a located on the side of the lower surface 3612 of the plate body 361a and connected to the casing 11, and two driven plates 365a in the front-rear direction D2 The upper rail blocks 365b are provided at intervals on the driven plate 365a. The driven plate 365a has an elliptical driven hole 365c corresponding to the arc-shaped hole 3617. The second guiding portion 363d of the linkage 363 passes through the arc-shaped hole 3617 and penetrates the driven hole correspondingly. 365c. Each rail block 365b has a rail groove 365d facing the other rail block 365b, and the guide plate portions 361c of the rotating plate 361 are movably inserted in the Wait for the track groove 365d of the track block 365b.

The shaft cap 37 covers the synchronization rod portions 322 of the transmission shafts 32 and the synchronization member 33 along the front-rear direction D2. The shaft cap 37 has a first fixing hole 371 facing upward, and the connecting pipe 4 has two second fixing holes 41 facing upward.

Referring to FIG. 6, FIG. 8, FIG. 17 and FIG. 18, the skeleton structure 5 is disposed on the hinge mechanisms 3 and the connecting pipe 4 along the front-rear direction D2. In detail, the skeleton structure 5 includes a first steel bar 51, two steel plates 52, two second steel bars 53, and two connecting plates 54. The first steel strip 51 extends along the front-rear direction D2 and covers the connecting tube 4 and the shaft caps 37, and is locked to the first fixing holes 371 and the shaft caps by four locking members (not shown). The second fixing hole 41 is relatively fixed to the connecting tube 4 and the shaft cap 37. Each steel plate 52 is elongated and extends along the front and rear direction D2 to cover the area between the linkage units 36 on the same side of the hinge mechanism 3 and the front and rear sides of the track blocks 365b of the driven seats 365 . The second steel bars 53 are respectively located on the left and right sides of the first steel bar 51 and between the steel plates 52. The connecting plates 54 respectively extend along the front and rear direction D2 and are respectively covered on the steel plates 52 and the driven seats 365 and lock the casings 11. In this embodiment, the second steel bars 53 are not directly connected to the first steel bars 51 or the steel plates 52, but are embedded in the soft layer of the skeleton structure 5 by an injection molding method ( (Not shown in the figure), the first steel bars 51, the steel plates 52, the second steel bars 53, and the connecting plates 54 are embedded in the soft layer to relatively fix the positions of the second steel bars 53. In this embodiment, the material of the soft layer is rubber. The frame structure 5 is located under the shell plate 12, so that the shell plate 12 is constantly supported by the frame structure 5 during the rotation of the shells 11, so as to stably support the flexible screen.

The baffles 6 respectively extend along the front and rear direction D2 and are located on the left and right sides of the connecting pipe 4 Side, each baffle 6 is connected to the lower surface 3612 of the rotating plates 361 of the linkage units 36 on the same side, and the baffles 6 are located in the machines when the cabinets 11 are in the flat position. Between the shells 11 and exposed on the folding surface 112a.

Referring to Figure 1, Figure 6, Figure 10 and Figure 17, when the casings 11 are in the flat position, the joint surface 14 is in a flat state, and the frame structure 5 also abuts against the shell plate in a flat state 12; The linkage units 36 of each hinge mechanism 3 are located on the same horizontal plane, the connecting unit 35 extends in a straight line along the left and right direction D1, the synchronization member 33 is close to the tube base 31, and the rotating plate 361 of each linkage unit 36 The first outer side 3613 of the drive plate 364 is aligned with the second outer side 364b of the transmission plate 364; see also Figures 19 and 20, the connecting rod portion 363a of the linkage 363 abuts against one of the radial sides of the sector groove 3615 3615b, the second guiding portion 363d is located at the expanded end 3618 of the arc hole 3617.

Referring to Figures 21 to 25, when the casings 11 are forced to rotate and fold along the bending direction B1 from the flat position to the folded position, each rotating plate 361 of each hinge mechanism 3 corresponds to the The transmission shaft 32 rotates on the axis, and each connecting end 351 of the connecting unit 35 and each transmission plate 364 rotate with the first axis L1 as the axis. Therefore, during the rotation, the rotation plate 361, the transmission The plate 364, the linkage 363, the driven base 365, and the casing 11 will synchronously move relative to each other until the casings 11 rotate to the folded position. In detail, since the first axis L1 is located relatively above the transmission shafts 32, the distance between the first outer side 3613 of each rotating plate 361 and the first axis L1 will increase as the rotating plate 361 The rotation angle of the transmission plate 364 and the rotation angle of the transmission plate 364 and the rotation plate 361 are gradually increased. When the arc length of the second outer side 364b of the transmission plate 364 and the first axis L1 plus the total length of the transmission plate 364 remains unchanged, the transmission plate 364 and the rotation plate 361 Relative movement occurs, so that the first outer side 3613 and the second outer side that are originally aligned with each other 364b is moved by a first predetermined distance d1 due to the relative movement of the transmission plate 364 and the rotation plate 361. At the same time, the first guide portion 363c of the linkage 363 located between the transmission plate 364 and the rotation plate 361 is also affected The transmission plate 364 drives to move the first predetermined distance d1 in the direction of the first axis L1, and the second guiding portion 363d simultaneously moves along the arc-shaped hole 3617 from the unfolded end 3618 to the folded end 3619. The second predetermined distance d2. It should be particularly noted that the first predetermined distance d1 and the second predetermined distance d2 are displacements parallel to the extending directions of the guide plate portions 361c and the track holes 3614, and since the first guide portion 363c and the track holes 3614 extend The second guide portion 363d moves around the shaft portion 363b as the axis, so the actual movement of the first guide portion 363c still needs to be combined to calculate the displacement in the elliptical transmission hole 364c along the forward and backward direction D2 The actual movement of the second guide portion 363d must also be combined to calculate the displacement of the elliptical driven hole 365c in the forward and backward direction D2. The first predetermined distance d1 and the second predetermined distance d2 are proportional, and the second predetermined distance d2 is greater than the first predetermined distance d1, so the second guide portion 363d simultaneously drives the driven seat 365 to be connected When the casing 11 moves the second predetermined distance d2 in the direction of the corresponding transmission shaft 32, the difference between the inner and outer diameters between the joining surface 14 and the closing surface 112a can not only be overcome, and the casing plate 12 During the bending process, it will not be pulled in the left and right direction D1, and the hinge mechanisms 3 and the skeleton structure 5 are linked by the casing 11 and interact with the casing plate 12 during the rotation of the casing 11 Keep the same distance between them so as to be able to constantly support the shell 12.

Referring to Figures 3 to 5, and Figures 26 to 29, when the casings 11 are rotated to the folded position, the part of the joint surface 14 located on the first casing 11a and the portion located on the carrier plate 13 are back to back In appearance, the shell plate 12 is bent into a curved surface, and is constantly supported by the skeleton structure 5 so as to stably support the center of the flexible screen. The connecting unit 35 is along the surface of the connecting plate portion 311 and the rotating plate 361 of the pipe socket 31 Bend, the synchronizing member 33 is far away from the tube base 31, the first outer side 3613 of the rotating plate 361 of each linkage unit 36 and the second outer side 364b of the transmission plate 364 are separated by the first predetermined distance d1', The connecting rod portion 363 a of the linkage member 363 abuts on the other radial side 3615 b of the fan-shaped slot 3615 and the second guiding portion 363 d is located at the folded end 3619 of the arc-shaped hole 3617.

Referring again to FIGS. 6 and 7, since the carrying board 13 is relatively fixed by the flexible screen being connected to the first casing 11a and the casing 12, the first casing 11a and the casing 12 are connected to The second casing 11b is relatively fixed by the hinge mechanisms 3. Therefore, during the normal rotation of the casings 11, the bearing plate 13 and the second casing 11a will not move relative to each other. The blocks 21 are held at the normal end portions 1141 of the buffer grooves 114d. However, when the hinge mechanism 3 is due to manufacturing tolerances, man-made assembly errors, or other defects, it may cause insufficient movement during the rotation of the casings 11 to be unable to smoothly move the second predetermined distance d2 (see FIG. 25). Since one end of the flexible screen is fixedly connected to the first casing 11a, when the casing 11 is rotated, the amount of movement is insufficient, and the other end of the flexible screen is connected to the carrying plate 13 and the buffers. The block 21, the linkage blocks 22 and the second casing 11b move relative to each other, so as to prevent the flexible screen from being pulled and damaged by the casings 11 jointly. During the relative movement, the buffer blocks 21 relatively move from the normal end portion 1141 to the buffer end portion 1142, and the linkage blocks 22 relatively move away from the limiting holes 114f. The elastic members 23 simultaneously enable the second casing 11b to move to the second predetermined distance d2 by the reaction force of the elastic expansion force, so that the buffer blocks 21 move back to the normal end portions 1141, the Wait for the linkage block 22 to move back to the limit holes 114f and return to the normal position when the casings 11 are in the folded position. In a modified implementation aspect, the second housing 11b and the screen protection module 2 are not limited to being installed in the outward-folding screen device 100 of this embodiment, and may also It can be assembled and matched with other types of hinges, hinge devices and shells.

To sum up, the outward-folding screen device 100 of the present invention is designed on the transmission shafts 32 to cooperate with the synchronization rod 322 and the synchronization member 33, so that the transmission shafts 32 rotate synchronously, and a hinge mechanism is added. 3 The stability during rotation prevents the two casings 11 from pivoting at different angles to avoid pulling the screen and causing damage; in addition, when the casings 11 rotate from the flat position to the folded position, the rotation plate 361 The corresponding transmission shaft 32 rotates on the axis, and the transmission plate 364 rotates with the first axis L1 located above the transmission shaft 32 as the axis, so that the transmission plate 364 and the rotating plate 361 have an inner and outer diameter difference, that is, the transmission The plate 364 will move a first predetermined distance d1 relative to the rotating plate 361, and by the design of the sector groove 3615 and the transmission member, the second guide portion 363d of the transmission member can move a first predetermined distance d1 larger than the first predetermined distance d1. Two predetermined distances d2, the motor housing 11 should move in the direction of the corresponding drive shaft 32 to compensate for the risk of screen damage caused by the difference between the inner and outer diameters, so it can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

11: Chassis

11b: second case

114: basal wall

114a: first side

114b: second side

114c: connection slot

114d: buffer slot

1141: Normal End

1142: buffer end

114e: hollow area

114f: limit hole

13: Carrying board

2: Screen protection module

21: buffer block

22: Linkage block

23: Elastic

D1: Left and right direction

D2: front and rear direction

R1: Reset direction

Claims (5)

An outward-folding screen device is suitable for connecting a flexible screen. The outward-folding screen device includes: two hinge mechanisms arranged at intervals along a front-to-back direction; and a housing unit that defines a joint surface on the opposite side and A folding surface, the joint surface is suitable for connecting the flexible screen, the housing unit includes two casings connected to the hinge mechanisms in a left-to-right direction, and the joint surface is in a flat state Rotate between the flat position and a folded position where the joint surface is located on the opposite outer side of the folding surface. Each casing has a first side connected to the hinge mechanisms and a first side opposite to the first side. Two sides and a base wall define a reset direction from the second side to the first side. The housings are divided into a first housing and a second housing. The second housing It also has a plurality of buffer grooves extending along the reset direction and a plurality of hollow areas. Each buffer groove has a normal end and a buffer end at opposite ends, and the normal end is farther from the first buffer end than the buffer end. On the side, the top surface of the base wall of the second casing is lower than the top surface of the base wall of the first casing, and the buffer grooves are arranged in two rows on the base wall of the second casing and are adjacent to each other. The first side, the second side, and a supporting board are slidably disposed on the second casing, and are connected to the flexible screen with the first casing, so that the flexible screen One part is fixedly connected to the first casing, and the other part is slidably connected to the carrier board relative to the second casing; and a screen protection module is arranged in the second casing and includes A plurality of buffer blocks are respectively slidably arranged in the buffer grooves and connected to the The carrying plate and the plurality of elastic members are respectively arranged in the hollow areas and respectively connected with the second casing and the carrying plate at two ends, when the buffer blocks are in the direction from the normal end to the buffer end Relatively moving, the elastic members constantly provide an elastic expansion force to the second casing to reset along the reset direction. The outward-folding screen device according to claim 1, wherein the hollow areas are arranged on the base wall of the second casing and located between the two rows of buffer grooves. The outward-folding screen device according to claim 1 or 2, wherein the second casing further has a plurality of limiting holes respectively connected to the hollow areas, and the screen protection module further includes a plurality of Equivalent limit holes and connected to the corresponding linkage block of one end of the elastic piece and the carrying plate. The outward-folding screen device according to claim 1, wherein the base wall has two connecting grooves recessed from the first side edge for the hinge mechanisms. The outward-folding screen device according to claim 1, wherein the housing unit further includes a housing plate located between the housings and covering the hinge mechanisms, the first housing, the housing plate and the bearing The plates collectively define the joint surface.

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