TW202102970A - Outward-folding display device having hinge units - Google Patents

Abstract

An outward-folding display device includes two flat casings adapted to be connected to a flexible display, and two hinge units connected between the casings such that the casings are convertible between unfolded and folded positions. Each of the hinge units includes two rotatable drive shafts, and two compensation subunits each including a rotating plate that is co-rotatably connected to a respective one of the drive shafts, and a driven plate that is slidable relative to the rotating plate and that is connected to a respective one of the casings, such that during conversion of the casings, the driven plate and the respective one of the casings slide relative to the rotating plate to prevent the flexible display from being stretched and damaged.

Description

Folding screen device

The present 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, battery and other performance, people are not changing the phones as frequently as when these products first came out. In order to bring consumers more freshness and meet the needs of large-size screens and convenient portability, foldable smart phones have also appeared on the market one after another. Foldable smartphones can be divided into two types: inside-folding and outside-folding. The inside-folding type 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 outside-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 unfolded to improve the visual experience when watching movies or playing mobile games. , It is the external foldable smart phone that is more popular. 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 is likely to 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, the outward-folding screen device of the present invention is suitable for connecting a flexible screen. The outward-folding screen device includes a housing unit and two hinge mechanisms. The casing unit includes two casings and defines a joint surface and a folding surface on opposite sides, and the joint surface is suitable for connecting the flexible screen. The hinge mechanisms are connected between the casings in a left-to-right direction, so that the casings can be at a flat position where the joint surface is in a flat state and the joint surface is located on the opposite outer side of the folding surface Rotate between one of the folded positions. Each hinge mechanism includes a pipe seat, two transmission shafts, a synchronization piece, a connection unit and two linkage units. The tube base has a connecting plate part extending in a front-to-rear direction, two sleeve connecting parts connected to the connecting plate part at intervals, and two locking block parts arranged at the top side of the connecting plate part at intervals. Each of the transmission shafts passes through the socket parts along the front-rear direction, and each transmission shaft has a transmission rod part and a synchronization rod part, and the synchronization rod part has a guiding groove. The synchronizing member is arranged between the synchronization rod parts of the transmission shafts, and has two guide blocks respectively extending into the guide grooves of the synchronization rod parts, so that the transmission shafts rotate synchronously. The connecting unit is bendably fixed between the lock block portions along the left and right direction, and the connecting unit has two connecting end portions respectively located at the left and right ends. The linkage units are respectively connected to the transmission shafts, the casings, and the connecting ends of the connecting unit in the left-right direction. Each linkage unit has a rotating plate, a transmission plate, a driven seat, and A linkage. The rotating plate is connected to the corresponding transmission shaft, and has a plate body, and two guide plate portions respectively protruding from the front and rear sides of the plate body. The plate body has an upper surface and an upper surface on the opposite side. A lower surface, a first outer side, a fan-shaped groove formed on the upper surface and defining a circle center, a shaft hole located in the fan-shaped groove and adjacent to the center of the fan-shaped groove, and a shaft hole located in the fan-shaped groove and far away The circle center of the fan-shaped groove penetrates through the arc-shaped hole on the upper surface and the lower surface, and the arc-shaped hole has an unfolded end and a folded end. The transmission plate is connected to the corresponding connecting end and is slidably arranged on the upper surface of the plate body. The transmission plate has a transmission hole and a second outer side. The driven seat has a driven board located on the side of the lower surface of the board body and connected to the corresponding casing, and two track blocks spaced apart from the driven board, the driven board has A driven hole corresponding to the arc-shaped hole, each track block has a track groove facing the other track block, and the track grooves of the track blocks are respectively movably inserted into the guide plate parts. The linkage is disposed in the fan-shaped slot, and has a shaft portion pivoted on the shaft hole, a first guiding portion penetrating through the transmission hole, and a shaft portion that is farther away from the first guiding portion and The second guiding part penetrates the arc hole and the driven hole. Define a first axis that passes through the lock block portions and is parallel to the drive shafts. The first axis is closer to the joint surfaces of the housing unit than the drive shafts and is located above the drive shafts; When the shell is rotated from the flat position to the folded position, each rotating plate rotates with the corresponding transmission shaft as the axis, and each transmission plate rotates with the first axis as the axis, and the transmission plate The second outer side moves a first predetermined distance relative to the first outer side of the rotating plate, so that the first guide portion of the corresponding linkage is driven by the transmission plate to move the first predetermined distance, and at the same time, the second The guide portion moves along the arc-shaped hole from the expanded end to the collapsed end by a second predetermined distance greater than the first predetermined distance, and at the same time, the second guide portion drives the driven seat to connect to the casing Move to the corresponding direction of the drive shaft.

In some embodiments, each plate body further has a track hole that penetrates the upper surface and the lower surface and extends in parallel to the guide plate portions, and each linkage unit also has a track hole connected to the transmission plate and can be A sliding block slidably arranged in the track hole.

In some embodiments, each transmission plate further has a side convex connection part, the connection unit is a chain, and has a plurality of chain blocks arranged along the left and right direction, and a plurality of pins connecting the chain blocks in series. Two of the plug pins are respectively located at the connecting ends of the connecting unit and are respectively pinned to the side protruding portions of the driving plates, and one of the plug pins is pinned to the side protruding portions along the first axis. The lock block part.

In some embodiments, the transmission rod portion of each transmission shaft has two connected tangent plane sections and an arc surface section connected to the tangent plane sections, and each rotating plate also has a connection to the The shaft sleeve portion of the plate body opposite to the first outer side, and the shaft sleeve portion defines a shape that matches the tangent plane sections and the arc surface section of the transmission rod portion for the transmission rod portion Corresponding to the piercing slot.

In some embodiments, the transmission rod portion is located between the sleeve portions, the transmission shaft further has an extension rod portion, and the same rod portion and the extension rod portion are respectively adjacent to two opposite ends of the transmission shaft , Each hinge mechanism also has a plurality of torsion plates, and each torsion plate is sleeved on the extension rod parts of the transmission shafts.

In some embodiments, the transmission rod portion is located between the sleeve portions, the transmission shaft further has an extension rod portion, and the same rod portion and the extension rod portion are respectively adjacent to two opposite ends of the transmission shaft , The outward-folding screen device also includes a connecting tube through which the extension rods of the drive shafts of the hinge mechanisms pass through to connect the hinge mechanisms at both ends, and a cover along the front and back direction In the frame structure of the connecting pipe and the hinge mechanisms, the housing unit further includes a shell plate covering the frame structure and connected between the cabinets, the shell plate being suitable for connecting to the flexible screen And it is constantly supported by the skeleton structure during the rotation of the casings.

In some embodiments, the skeleton structure includes a first steel bar extending in the front-rear direction and covering the connecting pipe, and two interlocking units extending in the front-rear direction and respectively covering the same side. , Two second steel bars located on both sides of the first steel bar and between the steel plates, and two extending along the front and rear directions and respectively covering the steel plates and the casings Connecting plates, the outward-folding screen device also includes a soft layer covering the skeleton structure.

In some embodiments, the material of the soft layer is rubber.

In some embodiments, the housing unit further includes two baffles extending in the front-rear direction and located on the left and right sides of the connecting pipe, and each baffle is connected to the rotating plates of the linkage units on the same side. , The baffles are located between the cabinets and exposed on the folding surface when the cabinets are in the flat position.

In some embodiments, each case has a first side connected to the hinge mechanisms, and a second side opposite to the first side, defining a side from the second side toward the In the reset direction of the first side, the casings are divided into a first casing and a second casing, and the casing unit further includes a casing plate located between the casings and covering the hinge mechanisms, and A bearing plate slidably disposed on the second casing and connected to the flexible screen, the first casing, the casing plate and the bearing plate jointly define the joint surface, and the second casing has a plurality of A buffer slot and a plurality of hollow areas, each buffer slot has a normal end and a buffer end at opposite ends, the outward-folding screen device also includes a screen protection module, the screen protection module includes a plurality of respective The buffer blocks slidably arranged in the buffer grooves and connected to the carrying plate, and a plurality of elastic members respectively arranged in the hollow areas and connected to the second casing and the carrying plate at both ends, when The buffer blocks relatively move from the normal end to the direction of the buffer end, and the elastic members constantly provide an elastic expansion force 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. It is arranged on the base wall of the second casing and 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 implementation aspects, 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 disposed in the limiting holes and connected to the corresponding One end of the elastic piece is connected to the linkage block of the carrying plate.

The present invention has at least the following effects: by designing the synchronization rods on the transmission shafts to cooperate with the synchronization piece, the transmission shafts are rotated synchronously, the stability of the hinge mechanism is increased, and the two The casing cannot be pivoted at different angles to avoid pulling the screen and causing damage; in addition, when the casing is rotated from the flat position to the folded position, because the rotating plate rotates with the corresponding drive shaft as the axis, the drive plate Rotating with the first axis located above the transmission shaft as the axis, the transmission plate and the rotating plate produce a difference between the inner and outer diameters, that is, the transmission plate will move a first predetermined distance relative to the rotating plate, and the sector groove and The design of the transmission member enables the second guide portion of the transmission member to move a second predetermined distance greater than the first predetermined distance. The motor housing should move in the direction of the corresponding transmission shaft to compensate for the difference between the inner and outer diameters, which may cause screen damage. risks of.

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.

Referring to FIGS. 6 and 7 in conjunction, 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 member 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, a second side 114b opposite to the first side 114a, and two spaced apart from the first side 114a toward the The second side 114b is recessed in the direction 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 on the left side of the figure and a second casing 11b 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 casing 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 respectively, and a plurality of buffer grooves 114d arranged in the two rows of buffer grooves 114d. There are 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 extension direction of each buffer groove 114d is parallel to the reset direction R1, and has a normal end 1141 and a buffer end 1142 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 frame 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 define 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 interlocking blocks 22 are respectively disposed 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 hole 114f, the elastic member 23 and the interlocking block 22 in the center of FIG. 7 are hidden and shown). The elastic pieces 23 are respectively disposed in the hollow areas 114e, and two ends of each elastic piece 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 respectively, so that the second housing 11b is reset 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 described in detail in the following paragraphs.

The hinge mechanisms 3 are arranged at intervals between the casings 11 in a front-to-back direction D2 and are connected to the casings 11 in the left-to-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 where 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 penetrated 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 the connecting plate portion at intervals 311 The lock block 313 on the top side. With reference to FIGS. 12-14, the transmission shafts 32 each pass through the sleeve portions 312 along the front-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 an extension rod portion 323 adjacent to the other end of the transmission shaft 32. 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 The four guide blocks 323b are respectively disposed on the side contact surfaces 323a in pairs to correspond to the guide blocks 323b extending into 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 portion 322 can also be one, and the number of guide blocks 323b on each side contact 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 torsion plates 34 The number can be adjusted correspondingly to the torque of the transmission shafts 32.

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 pins 353 connected in series with the chain blocks 352. The chain blocks 352 are alternately arranged in two rows in the front-to-rear direction D2, and each chain block 352 is formed by superimposing a plurality of chain plates 352a in the front-to-rear direction D2. Two of the bolts 353 respectively located at the connecting end portions 351 of the connecting unit 35 are also respectively pin-connected to the linkage units 36, and one of the bolts 353 located at the center of the connecting unit 35 passes through the lock block portions 313 along a line. The first axis L1 parallel to the transmission shafts 32 and located above the transmission shafts 32 is pin-connected to the lock block portions 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. In conjunction with FIG. 15, specifically, each linkage unit 36 has a rotating plate 361, two sliding blocks 362, a linkage member 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 outward 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 3615c penetrates through 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-shaped 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 at the opposite position of 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 guide 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 into the rail grooves 365d of the rail blocks 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 arranged 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 bar 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-rear direction D2 and are respectively covered on the steel plates 52 and the driven seats 365 to 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-rear direction D2 and are located on the left and right sides of the connecting pipe 4. Each baffle 6 is connected to the lower surfaces 3612 of the rotating plates 361 of the linkage units 36 on the same side, and the The baffle plate 6 is located between the casings 11 when the casings 11 are in the flat position and is 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 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 synchronizing 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 drive 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-shaped 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 as a shaft center. Each connection end 351 of the connection unit 35 and each transmission plate 364 rotate with the first axis L1 as the shaft center. 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 angle of rotation of the transmission plate 364 increases gradually. Under the condition that 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 364b, which are originally aligned with each other, move a first predetermined distance d1 due to the relative movement of the transmission plate 364 and the rotating plate 361, and are located at the same time. The first guide portion 363c of the linkage 363 between the transmission plate 364 and the rotation plate 361 is also driven by the transmission plate 364 to move the first predetermined distance d1 in the direction of the first axis L1, and the second guide The leading portion 363d simultaneously moves along the arc-shaped hole 3617 from the expanded end 3618 to the collapsed end 3619 by a 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 in 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 in a proportional relationship, 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 of the joint surface 14 and the folding 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 12 is bent into a curved shape, and is constantly supported by the skeleton structure 5 to stably support the center of the flexible screen. The connecting unit 35 is curved along the surface of the connecting plate portion 311 of the pipe socket 31 and the rotating plate 361, the synchronizing member 33 is away from the pipe socket 31, and the first outer side 3613 of the rotating plate 361 of each linkage unit 36 is connected to the surface of the rotating plate 361. The second outer side 364b of the transmission plate 364 is separated by the first predetermined distance d1', the connecting rod portion 363a of the linkage 363 is abutted against the other radial side 3615b of the sector groove 3615, and the second guide portion 363d is located at the folded end 3619 of the arc-shaped hole 3617.

6 and 7 again, because the carrier plate 13 is relatively fixed by the flexible screen connected to the first housing 11a, the housing 12, the first housing 11a, the housing 12 and 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 and cannot 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 and the linkage blocks 22 move relative to the second casing 11b, so as to prevent the flexible screen from being damaged by the joint pulling of the casings 11. In the process of relative movement, the buffer blocks 21 relatively move from the normal end 1141 to the buffer end 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 elastic expansion force, so that the buffer blocks 21 move back to the normal end portions 1141, and the linkage blocks 22 moves back to the limit holes 114f, and restores 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 can also be combined with other types of hinges, hinge devices, and housings. Assemble and use with each other.

In summary, 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 synchronizing 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 are rotated 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 greater 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 the purpose of the invention can indeed be achieved.

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.

100: Folding screen device 1: housing unit 11: Chassis 11a: The first housing 11b: second chassis 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 parts 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: Synchronous lever 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 part 3611: piercing 361c: guide plate 362: Sliding Block 363: Linkage 363a: connecting rod 363b: Shaft 363c: The first guiding part 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: Baffle 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: 1 is a perspective view of an embodiment of the outward-folding screen device of the present invention, illustrating that the two casings of a housing unit of this embodiment are in a flat position; Figure 2 is a side view illustrating 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; Figure 4 is another angle view of Figure 3; Figure 5 is a side view of the casings in the folded position; Figure 6 is a three-dimensional exploded view of the embodiment; FIG. 7 is a three-dimensional exploded view illustrating one of the casings, a carrying plate of the casing unit, and a screen protection module of the embodiment; Figure 8 is a perspective view illustrating two hinge mechanisms, a connecting tube and two baffles of this embodiment; Figure 9 is a perspective exploded view of Figure 8; Figure 10 is a perspective view of one of the hinge mechanisms of the 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; Figure 13 is another angle view of Figure 12; Figure 14 is a perspective view illustrating a synchronizer of the hinge mechanism; Figure 15 is a perspective exploded view of a linkage unit of this embodiment; 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 the embodiment is covered on the hinge mechanisms and the connecting pipe; Figure 18 is a perspective exploded view of Figure 17; 19 is a schematic top view illustrating that a first outer side of a rotating plate of the linkage unit is aligned with a second outer side of a transmission plate of the linkage unit when the casings are in the flat position; 20 is a schematic bottom view illustrating that a second guide portion of the linkage is located at an unfolded end of an arc-shaped hole of the rotating plate when the casings are in the flat position; 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 the state of the skeleton structure and the hinge mechanisms when the casings are bent along the bending directions; Figure 23 is a perspective view illustrating the state of each hinge mechanism when the casings are bent along the bending directions; FIG. 24 is a schematic top view illustrating that during the rotation of the casings, the first outer side of the rotating plate and the second outer side of the transmission plate move relative to each other by a first predetermined distance, and a first of the linkage member A guiding part is driven by the transmission plate to move the first predetermined distance; 25 is a schematic bottom view illustrating that during the rotation of the casings, the second guide portion of the linkage moves a second predetermined distance along the arc-shaped hole; Figure 26 is a perspective view illustrating the state of the skeleton structure and the hinge mechanisms when the casings are rotated to the folded position; Figure 27 is a perspective view illustrating the state of each hinge mechanism when the casings are rotated to the folded position; FIG. 28 is a schematic top view illustrating that when the casings are rotated to the folded position, a connecting rod portion of the linkage member is close to one of the radius sides of the arc-shaped groove; and FIG. 29 is a schematic bottom view illustrating that when the casings are rotated to the folded position, the second guide portion of the linkage member moves to a folded end of the arc-shaped hole.

100: Folding screen device

1: housing unit

11: Chassis

11a: The first housing

11b: second chassis

111: upper shell

112: lower shell

113: installation space

114: basal wall

114a: first side

114b: second side

114c: connection slot

115: Wall

12: Shell

13: Carrying board

2: Screen protection module

21: Buffer block

22: Linkage block

23: Elastic parts

3: Hinge mechanism

36: linkage unit

4: connecting pipe

5: Skeleton structure

51: The first steel bar

52: steel plate

53: The second steel bar

54: even board

6: Baffle

D1: Left and right direction

D2: front and rear direction

Claims (13)

An outward-folding screen device suitable for connecting to a flexible screen. The outward-folding screen device includes: A housing unit, including two housings, and defining a joint surface and a folding surface on opposite sides, the joint surface is suitable for connecting the flexible screen; and Two hinge mechanisms are connected between the casings in a left-to-right direction, so that the casings can be at a flat position where the joint surface is in a flat state and the joint surface is located opposite to the folding surface Rotate between a folding position on the outside, each hinge mechanism includes A pipe socket with a connecting plate portion extending in a front-to-rear direction, two sleeve connecting portions connected to the connecting plate portion at intervals, and two locking block portions arranged at intervals on the top side of the connecting plate portion , Two transmission shafts respectively pass through the socket parts along the front and rear direction, each transmission shaft has a transmission rod part and a synchronization rod part, and the synchronization rod part has a guide groove; A synchronizing piece is arranged between the synchronization rods of the transmission shafts and has two guide blocks respectively extending into the guide grooves of the synchronization rods, so that the transmission shafts rotate synchronously when they rotate; A connecting unit which is bendably fixed between the lock block portions along the left and right direction, the connecting unit has two connecting end portions located at the left and right ends, and Two linkage units are respectively connected to the transmission shafts, the casings and the connecting ends of the connecting unit in the left-right direction, and each linkage unit has A rotating plate is connected to the corresponding transmission shaft and has a plate body and two guide plate portions protruding outward from the front and rear sides of the plate body. The plate body has an upper surface on the opposite side And a lower surface, a first outer side, a fan-shaped groove formed on the upper surface and defining a circle center, a shaft hole located in the fan-shaped groove and adjacent to the center of the fan-shaped groove, and a shaft hole located in the fan-shaped groove and An arc-shaped hole that is far from the center of the fan-shaped groove and penetrates the upper surface and the lower surface, and the arc-shaped hole has an unfolded end and a folded end, A transmission plate connected to the corresponding connecting end and slidably arranged on the upper surface of the plate body, the transmission plate having a transmission hole and a second outer side, A driven seat has a driven board located on the side of the lower surface of the board body and connected to the corresponding casing, and two track blocks arranged on the driven board at intervals, the driven board There is a driven hole corresponding to the arc-shaped hole, each track block has a track groove facing the other track block, and the track grooves of the track blocks are respectively for the guide plate parts to be movably inserted, A linkage member is disposed in the fan-shaped slot, and has a shaft portion pivoted on the shaft hole, a first guide portion penetrating through the transmission hole, and a portion farther from the shaft portion than the first guide portion And pass through the arc-shaped hole and the second guide portion of the driven hole; Among them, define a first axis that passes through the lock block portions and is parallel to the transmission shafts, and the first axis is closer to the joint surfaces of the housing unit than the transmission shafts and is located above the transmission shafts; When the casing is rotated from the flat position to the folded position, each rotating plate rotates with the corresponding transmission shaft as the axis, and each transmission plate rotates with the first axis as the axis, and the transmission The second outer edge of the plate moves a first predetermined distance relative to the first outer edge of the rotating plate, so that the first guide portion of the corresponding linkage is driven by the transmission plate to move the first predetermined distance, and at the same time, the The second guiding portion moves along the arc-shaped hole from the expanded end to the collapsed end by a second predetermined distance greater than the first predetermined distance, and at the same time the second guiding portion drives the driven seat to connect to the The housing should move to the corresponding direction of the drive shaft. The outward-folding screen device according to claim 1, wherein each plate body further has a rail hole that penetrates the upper surface and the lower surface and extends in parallel to the guide plate portions, and each linkage unit further has A sliding block connected to the transmission plate and slidably arranged in the track hole. The outward-folding screen device according to claim 1, wherein each transmission plate further has a side protruding part, the connection unit is a chain, and has a plurality of chain blocks arranged along the left and right direction, and a plurality of strings The bolts connected to the chain blocks, two of the bolts are located at the connecting ends of the connecting unit and are respectively pinned to the side protruding parts of the drive plates, one of the bolts Pins are connected to the lock block parts along the first axis. The outward-folding screen device according to claim 1, wherein the transmission rod of each transmission shaft has two connected tangent plane sections, and a circular arc section connected to the tangent plane sections, each The rotating plate also has a sleeve portion connected to the plate body at a position opposite to the first outer side, and the sleeve portion defines a shape and the tangent plane sections of the transmission rod portion and the arc surface section Are matched to provide the transmission rod with corresponding through slots. The outward-folding screen device according to claim 4, wherein the transmission rod portion is located between the sleeve portions, the transmission shaft further has an extension rod portion, and the same rod portion and the extension rod portion are respectively opposite to each other Adjacent to the two opposite ends of the transmission shaft, each hinge mechanism further has a plurality of torsion plates, and each torsion plate is sleeved on the extension rod parts of the transmission shafts. The outward-folding screen device according to claim 1, wherein the transmission rod portion is located between the sleeve portions, the transmission shaft further has an extension rod portion, and the same rod portion and the extension rod portion are respectively opposite to each other Adjacent to the two opposite ends of the drive shaft, the outward-folding screen device also includes a connecting pipe for connecting the hinge mechanisms with the extension rods of the drive shafts of the hinge mechanisms at both ends, respectively, And a skeleton structure covering the connecting pipe and the hinge mechanisms along the front and rear direction, the shell unit further includes a shell plate covering the skeleton structure and connected between the casings, the shell plate being suitable for It is connected to the flexible screen and is constantly supported by the skeleton structure during the rotation of the casings. The outward-folding screen device according to claim 6, wherein the skeleton structure includes a first steel bar extending in the front-to-rear direction and covering the connecting pipe, and two steel bars extending in the front-to-rear direction and covering the same The steel plates between the linkage units on the side, two second steel bars located on both sides of the first steel bar and between the steel plates, and two extending along the front-rear direction and respectively covering the The outer-folding screen device also includes a soft layer covering the frame structure. The outward-folding screen device according to claim 7, wherein the material of the soft layer is rubber. The outward-folding screen device according to claim 6, wherein the housing unit further includes two baffles respectively extending in the front and rear direction and located on the left and right sides of the connecting pipe, and each baffle is connected to the same side of the For the rotating plates of the equivalent linkage unit, the baffles are located between the casings and exposed on the folding surface when the casings are in the flat position. The outward-folding screen device according to claim 1, wherein each casing has a first side connected to the hinge mechanisms, and a second side opposite to the first side, defining a From the second side to the reset direction of the first side, the housings are divided into a first housing and a second housing, and the housing unit further includes a housing located between the housings and covering the housing. A housing plate with a hinge mechanism, and a bearing plate slidably disposed on the second housing and connected to the flexible screen. The first housing, the housing plate and the bearing plate jointly define the joint surface , The second casing has a plurality of buffer slots and a plurality of hollow areas, each buffer slot has a normal end and a buffer end at opposite ends, the outward-folding screen device also includes a screen protection module, the The screen protection module includes a plurality of buffer blocks respectively slidably arranged in the buffer grooves and connected to the carrying plate, and a plurality of buffer blocks respectively arranged in the hollow areas and connected to the second casing and the second casing with two ends respectively. The elastic parts of the supporting board, when the buffer blocks relatively move from the normal end to the buffer end, the elastic parts constantly provide an elastic expansion force along the reset direction to the second casing. The outward-folding screen device according to claim 10, wherein each casing further has a base wall, and 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 equal buffer grooves are arranged in two rows on the base wall of the second casing and are respectively adjacent to the first side and the second side. The outward-folding screen device according to claim 11, 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 10 or 12, 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 link block of one end of the elastic piece and the carrying plate.

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