CN112228445A - Linkage mechanism, folding device and electronic equipment - Google Patents

Linkage mechanism, folding device and electronic equipment Download PDF

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Publication number
CN112228445A
CN112228445A CN201911004576.4A CN201911004576A CN112228445A CN 112228445 A CN112228445 A CN 112228445A CN 201911004576 A CN201911004576 A CN 201911004576A CN 112228445 A CN112228445 A CN 112228445A
Authority
CN
China
Prior art keywords
hinge
shaft
piece
frame
transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911004576.4A
Other languages
Chinese (zh)
Inventor
刘文俊
洪祝平
陈松亚
凡小飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Royole Technologies Co Ltd
Royole Corp
Original Assignee
Shenzhen Royole Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from PCT/CN2019/096011 external-priority patent/WO2021007750A1/en
Priority claimed from PCT/CN2019/103742 external-priority patent/WO2020211257A1/en
Application filed by Shenzhen Royole Technologies Co Ltd filed Critical Shenzhen Royole Technologies Co Ltd
Publication of CN112228445A publication Critical patent/CN112228445A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Mechanical Engineering (AREA)
  • Mathematical Physics (AREA)
  • Telephone Set Structure (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The invention provides electronic equipment which comprises a flexible piece, a shell and a folding device, wherein the shell comprises a first frame body and a second frame body, the folding device is arranged between the first frame body and the second frame body, the folding device comprises a hinge main body and at least one linkage mechanism arranged on the hinge main body, the hinge main body comprises a plurality of hinge joint units which are sequentially connected, the hinge joint units are driven by the linkage mechanism to rotate at the same side, the hinge joint units comprise connecting hinge joints positioned at least one side, and the connecting hinge joints are used for bending compensation of the folding device. The invention also provides a folding device and a linkage mechanism of the electronic equipment.

Description

Linkage mechanism, folding device and electronic equipment
Technical Field
The invention relates to the field of flexible piece supporting, in particular to a folding device for supporting a flexible piece, electronic equipment provided with the folding device and a linkage mechanism of the folding device.
Background
With the development of display devices, a bendable electronic screen, i.e., a flexible screen, has appeared. Compared with the traditional display device, the flexible screen has the advantages of being foldable, flexible and the like, and is widely favored by consumers. In the process of bending and unfolding, the flexible screen needs to be symmetrical left and right all the time, so a linkage mechanism is needed, and the structural symmetry of bending or unfolding of the flexible screen can be kept all the time in the process of bending and unfolding.
Disclosure of Invention
The invention provides a folding device capable of meeting the bending requirement of a flexible screen (which can be a flexible display screen or a flexible touch screen or the combination of the flexible display screen and the flexible touch screen), an electronic device provided with the folding device and a linkage mechanism of the folding device.
The invention provides a linkage mechanism which comprises two first connecting rod pieces, a first gear assembly, a second gear assembly, two first connecting shafts and two second connecting shafts, wherein the first gear assembly comprises a fixing piece and first transmission pieces positioned at two opposite ends of the fixing piece, the second gear assembly comprises two second transmission pieces, the two second transmission pieces are in gear fit, the two first connecting shafts are inserted into the fixing piece and the two second transmission pieces, the two second connecting shafts are respectively and fixedly inserted into the two first transmission pieces and the two second transmission pieces, the two first connecting shafts are positioned between the two second connecting shafts, and one ends of the two first connecting pieces are respectively fixed at one ends of the two first transmission pieces, which are far away from the fixing piece.
The invention also provides a folding device, which comprises a hinge main body and at least one linkage mechanism arranged on the hinge main body, wherein the hinge main body comprises a plurality of hinge joint units which are sequentially connected, the hinge joint units are driven by the linkage mechanism to rotate at the same side, the hinge joint units comprise connecting hinge joints positioned at least one side, and the connecting hinge joints are used for bending compensation of the folding device.
The invention also provides various folding devices, which comprise a hinge main body and at least one linkage mechanism arranged on the hinge main body; the hinge main body comprises a plurality of hinge joint units, and the hinge joint units synchronously rotate under the action of the linkage mechanism.
The invention also provides electronic equipment which comprises a flexible piece, a shell and a folding device, wherein the shell comprises a first frame body and a second frame body, the folding device is arranged between the first frame body and the second frame body, the folding device comprises a hinge main body and at least one linkage mechanism arranged on the hinge main body, the hinge main body comprises a plurality of hinge joint units which are sequentially connected, the hinge joint units are driven by the linkage mechanism to rotate on the same side, the hinge joint units comprise connecting hinge joints positioned on at least one side, and the connecting hinge joints are used for bending compensation of the folding device.
The folding device of the electronic equipment comprises a hinge main body and a linkage mechanism connected to the hinge main body, wherein the hinge main body comprises a plurality of hinge joint units which are sequentially connected, the hinge joint units comprise connecting hinge joints positioned on at least one side, and the connecting hinge joints are used for bending compensation of the folding device. The hinge joint unit is driven by the linkage mechanism to rotate at the same side, so that the folding device can be conveniently linked, bent and unfolded, and the connecting hinge joint is used for bending compensation of the folding device, so that the folding device can adapt to a supporting structure with the bending requirement of the flexible piece.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic perspective view of an electronic device in an embodiment of the invention.
Fig. 2 is an exploded perspective view of the flexible member and the housing of the electronic device in fig. 1.
Fig. 3 is an enlarged schematic perspective view of a folding device of the electronic apparatus in fig. 2.
Fig. 4 is a perspective view of the folding device in fig. 3 from another perspective.
Fig. 5 is a partially exploded perspective view of the folding device of fig. 3.
Fig. 6 is a perspective view of another view of the folding device of fig. 5.
Fig. 7 is an exploded perspective view of the central hinge and two support hinges of fig. 5.
Fig. 8 is an exploded perspective view of the central hinge and two support hinges of fig. 6.
Figure 9 is a perspective view of a portion of one of the connecting joints of figure 5.
Fig. 10 is a perspective view of a portion of one of the connecting joints of fig. 6.
Fig. 11 is a further exploded perspective view of the connecting joint of fig. 9.
Fig. 12 is a further exploded perspective view of the connecting joint of fig. 10.
Fig. 13 is an exploded perspective view of one of the linkages and corresponding bracelet mechanism of fig. 5.
Fig. 14 is an exploded perspective view of the linkage and the bracelet mechanism of fig. 13 from another perspective.
Fig. 15 is a further exploded perspective view of the linkage and the bracelet mechanism of fig. 13.
Fig. 16 is a further exploded perspective view of the linkage and the bracelet mechanism of fig. 14.
Fig. 17 is an exploded perspective view of a first gear assembly of the linkage of fig. 15.
FIG. 18 is an exploded perspective view of a second gear assembly of the linkage of FIG. 15.
Fig. 19 is an enlarged perspective view of the bracelet mechanism in fig. 15.
Fig. 20 is an enlarged perspective view of the bracelet mechanism in fig. 16.
Fig. 21 is a perspective view of the folding device of fig. 4 with the connecting tabs removed.
Fig. 22 is a schematic view of an end structure of the folding device of fig. 4.
Fig. 23 is a sectional view taken along line XXIII-XXIII in fig. 21.
Fig. 24 is a sectional view taken along line XXIV-XXIV in fig. 21.
Fig. 25 is a sectional view taken along line XXV-XXV in fig. 21.
Fig. 26 is a sectional view taken along line XXVI-XXVI in fig. 21.
Fig. 27 is a perspective view illustrating a folded state of the folding device of the electronic apparatus in fig. 1.
Fig. 28 is a perspective view of the folding device of the electronic apparatus of the present invention in a folded state.
FIG. 29 is a schematic end view of the folding device of FIG. 28
FIG. 30 is a cross-sectional view taken along line XXX-XXX in FIG. 28.
FIG. 31 is a cross-sectional view taken along line XXXI-XXXI in FIG. 28.
FIG. 32 is a cross-sectional view taken along line XXXII-XXXII in FIG. 28.
FIG. 33 is a cross-sectional view taken along line XXXIII-XXXIII in FIG. 28.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Furthermore, the following description of the various embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. Directional phrases used in this disclosure, such as, for example, "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," and the like, refer only to the orientation of the appended drawings and are, therefore, used herein for better and clearer illustration and understanding of the invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed at … …" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to fig. 6, an electronic device 100 according to an embodiment of the invention includes a housing 20 and a flexible element 30 disposed on the housing 20. The housing 20 includes a first frame 21, a second frame 23, and a folding device 24 connected between the first frame 21 and the second frame 23. The flexible material 30 is provided on the first frame 21, the second frame 23, and the folding device 24. The flexible element 30 is provided with a bendable region 31 corresponding to the folding means 24 and two non-bendable regions 33 connected to opposite sides of the bendable region 31. The folding device 24 is used to support the bendable region 31 of the flexible member 30, and the flexible member 30 is bent or flattened with the folding device 24. The folding device 24 comprises a hinge body 25. The hinge body 25 can be bent to drive the folding device 24 to be bent. Alternatively, the folding device 24 may further include at least one linkage 26 provided to the hinge body 25, and the hinge body 25 includes a plurality of connected hinge units, and the hinge units are rotated simultaneously by the linkage 26. Specifically, a number of the hinge units include a central hinge 250 at the middle, support hinges 253 attached to opposite sides of the central hinge 250, and connecting hinges 255 attached to each support hinge 253 on the side away from the central hinge 250. Two support hinges 253 are symmetrically disposed on opposite sides of the central hinge 250. Each connecting hinge joint 255 includes a mounting frame 257 attached to the corresponding support hinge joint 253 and a connecting frame 256 slidably attached to the mounting frame 257. The hinge units are driven by the linkage mechanism 26 to rotate on the same side, and the connecting frame 256 and the mounting frame 257 of each connecting hinge 255 move relatively to realize bending compensation. Each support hinge 253 is pivotally connected to the central hinge 250 and the corresponding connecting hinge 255, and the linkage 26 is disposed on the back of the central hinge 250. The folding device 24 further includes a bracelet mechanism 27 provided at opposite ends of the hinge main body 25, and a plurality of the hinge joint units are rotatably connected to one body by the bracelet mechanism 27. Each connecting frame 256 is slidably connected to a corresponding mounting frame 257. The first housing 21 and the second housing 23 are connected to the corresponding mounting frames 257, respectively. Each connecting frame 256 is slidably disposed on the corresponding mounting frame 257.
In this embodiment, the folding device 24 is a bendable hinge, and the bendable hinge includes a plurality of hinge units and a connecting frame disposed at two opposite sides of the hinge units; two opposite sides of the bendable hinge are connected with the first frame 21 and the second frame 23 respectively.
Specifically, opposite sides of the end of the middle hinge joint 250 are rotatably connected to two support hinge joints 253 by a watch chain mechanism 27, respectively, and the side of the end of each support hinge joint 253 facing away from the middle hinge joint 250 is rotatably connected to the corresponding connecting hinge joint 255 by the watch chain mechanism 27. The linkage mechanism 26 includes two first link members 266 disposed on opposite sides thereof, one end of each of the two first link members 266 away from the middle hinge joint 250 is slidably connected to the connecting frame 256 of the two connecting hinge joints 255, wherein one of the connecting hinge joints 255 rotates relative to one side of the middle hinge joint 250 away from the light-emitting surface of the flexible member 30 or towards one side of the light-emitting surface of the flexible member 30, so as to drive the corresponding first link member 266 and the corresponding support hinge joint 253 to rotate, and drive the other first link member 266 and the corresponding support hinge joint 253 and connecting hinge joint 255 to rotate also away from one side of the light-emitting surface of the flexible member 30 or towards one side of the light-emitting surface of the flexible member 30 through the linkage mechanism 26.
Specifically, when one of the connecting hinges 255 rotates towards a side away from the light-emitting surface of the flexible member 30, the corresponding first connecting rod 266 and the corresponding supporting hinge 253 are driven to rotate towards a side away from the light-emitting surface of the flexible member 30, the linkage mechanism 26 drives the other first connecting rod 266 to rotate towards a side away from the light-emitting surface of the flexible member 30, and the other first connecting rod 266 drives the other connecting hinge 255 and the other supporting hinge 253 to rotate towards a side away from the light-emitting surface of the flexible member 30, so as to synchronously bend the folding device 24, thereby realizing the bending of the bendable region 31 of the flexible member 30; when one of the connecting hinges 255 rotates towards one side of the light-emitting surface of the flexible member 30, the corresponding first link 266 and the corresponding support hinge 253 are driven to rotate towards one side of the light-emitting surface of the flexible member 30, the linkage mechanism 26 drives the other first link 266 to rotate towards one side of the light-emitting surface of the flexible member 30, and the other first link 266 drives the other connecting hinge 255 and the other support hinge 253 to rotate towards one side of the light-emitting surface of the flexible member 30, so that the folding device 24 is synchronously unfolded, and the foldable area 31 of the flexible member 30 is unfolded.
In this embodiment, two opposite ends of the hinge main body 25 are respectively provided with a linkage mechanism 26, the number of the middle hinge joint 250 is one, and the number of the connecting hinge joint 255 and the number of the supporting hinge joints 253 are two; the flexible member 30 comprises a flexible screen and a steel sheet attached to the back of the flexible screen corresponding to the bendable region 31, the flexible screen is attached to the first frame body 21, the second frame body 23 and the folding device 24, and the steel sheet is located between the flexible screen and the folding device 24. The flexible screen may be a flexible display screen or a flexible touch screen, or a combination of both.
In this embodiment, the electronic device 100 is, for example, but not limited to, a mobile phone, a tablet computer, a display, a liquid crystal panel, an OLED panel, a television, a smart watch, a VR head-mounted display, a vehicle-mounted display, and any other products and components with a display function.
The folding device 24 of the electronic device 100 of the present invention includes a hinge body 25 and at least one linkage 26 connected to the hinge body 25. Opposite sides of the middle hinge joint 250 of the hinge body 25 are rotatably connected to the support hinge joints 253, respectively, one side of each support hinge joint 253 remote from the middle hinge joint 250 is rotatably connected to the connecting hinge joint 255, the link mechanism 26 is disposed on the middle hinge joint 250, and the first link members 266 of opposite sides of the link mechanism 26 are slidably connected to the two connecting hinge joints 255, respectively. When one of the first link members 266 of the linkage mechanism 26 rotates toward one side along with the corresponding connecting hinge 255, the linkage mechanism 26 drives the other first link member 266 to rotate toward the same side, and the other first link member 266 drives the other connecting hinge 255 to rotate toward the same side, so as to facilitate bending and flattening of the folding device 24, so that the folding device 24 can adapt to a supporting structure required by bending of the flexible member 30, and the connecting frame 256 and the mounting frame 257 of each connecting hinge 255 move relative to each other to compensate for the bending.
In other embodiments, the hinge body 25 includes a central hinge joint and a plurality of support hinge joints symmetrically disposed on opposite sides of the central hinge joint, and the support hinge joints are configured to rotate toward or away from the central hinge joint in synchronization with the linkage mechanism.
Referring to fig. 7 and 8, the middle hinge joint 250 is a strip-shaped hinge joint, and includes a fixing strip 2501, the fixing strip 2501 includes a front 2500 with a circular arc cross section and a back facing away from the front 2500, two opposite ends of the back of the fixing strip 2501 are respectively provided with a mounting portion 2503, and the two mounting portions 2503 are used for mounting two linkage mechanisms 26. Each mounting portion 2503 includes the joint piece 2510 of protruding locate middle part hinge joint 250 tip and is close to the fixed block 2504 of joint piece 2510, is used for setting up a link gear 26 between joint piece 2510 and the fixed block 2504. The end surface of the fixing block 2504 facing the corresponding clamping block 2510 is provided with two positioning holes 2505 which are parallel at intervals, and each positioning hole 2505 is a kidney-shaped hole in the embodiment. The two opposite sides of each fixed block 2504 are respectively provided with a guide slot 2506, and the fixed block 2504 is provided with a circular arc-shaped guide sliding surface 2507 in each guide slot 2506. A countersunk hole 2508 is formed in the front 2500 of the middle hinge joint 250 near each fastener block 2510. The back of each snap-in piece 2510 is provided with two connection holes 2511 spaced from each other and a positioning hole 2513 located between the two connection holes 2511. The two opposite end faces of the middle hinge joint 250 are respectively provided with a clamping block 2509 in a protruding mode.
Each support hinge 253 is strip-shaped, and the support hinge 253 includes a front surface 2530 with a circular arc-shaped cross section and a back surface departing from the front surface 2530. Two slide guide projections 2531 are arranged on one side of the support hinge joint 253 facing the middle hinge joint 253, corresponding to the guide grooves 2506 of the two fixing blocks 2504, and each slide guide projection 2531 is slidably received in the corresponding guide groove 2506, namely, the slide guide projections 2531 and the guide grooves 2506 form a guide mechanism between the support hinge joint 253 and the middle hinge joint 250; the slide guide projection 2531 is provided with an arc slide guide surface 2533 which is slidably fitted on the slide guide surface 2507 in the guide groove 2506; the guide mechanism defines a rotation track rotating around a circle center, and the circle center is positioned on the flexible part 30; specifically, the rotation axis of slide guide surface 2507 and the rotation axis of slide guide surface 2533 are overlapped and positioned on flexible material 30, and preferably, the rotation axis of slide guide surface 2507 and the rotation axis of slide guide surface 2533 are overlapped and positioned on the neutral layer of flexible material 30. The back of the support hinge 253 is provided with a slide guide 2535 adjacent to each slide guide projection 2531, each slide guide 2535 is bent towards one side far away from the middle hinge 250, and the slide guide 2535 is provided with an arc slide guide surface 2536.
Two ends of the back surface of the support hinge 253, which are opposite to each other, are respectively provided with a clamping block 2532, and the back surface of each clamping block 2532 is provided with two connecting holes 2537 which are spaced from each other and a positioning hole 2538 which is positioned between the two connecting holes 2537. The two opposite end surfaces of the support hinge 253 are respectively provided with a clamping block 2539 in a protruding way.
Referring to fig. 9 to 12, the mounting frame 256 of each connecting hinge 255 includes a strip-shaped mounting plate 2561, two connecting pieces 2563 are respectively disposed at two opposite ends of the mounting plate 2561, and the two connecting pieces 2563 are located at a side away from the supporting hinge 253. Each connecting piece 2563 extends outwards along the length direction perpendicular to the mounting plate 2561, and two strip-shaped connecting holes 2564 are formed in each connecting piece 2563 along the length direction perpendicular to the mounting plate 2561. The back of the mounting plate 2561 is protruded with two abutting pieces 2565 spaced from each other, in this embodiment, the back of the mounting plate 2561 is protruded with two abutting pieces 2565 spaced from each other, the two abutting pieces 2565 are located on one side of the middle of the mounting plate 2561 close to the connecting piece 2563, and each abutting piece 2565 is parallel to the extending direction of the mounting plate 2561. The back of the mounting plate 2561 is provided with a connecting column 2566 near the middle of each abutting sheet 2565, each connecting column 2566 is located at one side far away from the connecting sheet 2563, and each connecting column 2566 is axially provided with a connecting hole 2567.
Each connecting frame 257 includes a fixing member 258 located at the middle portion thereof and two connecting members 259 located at two opposite ends of the fixing member 258, wherein the two connecting members 259 are respectively connected to the two opposite ends of the fixing member 258 to form a strip-shaped connecting frame 257. The front of the fixing member 258 is provided with a guide slot 2580, the guide slot 2580 penetrates through the side surface and the opposite two end surfaces of the fixing member 258 close to the middle hinge joint 250, and the mounting plate 2561 is slidably accommodated in the guide slot 2580. When the mounting plate 2561 is received within the chute 2580, the front face of the mounting plate 2561 is flush with the front face of the securing member 258. Two connecting holes 2581 are arranged at intervals on two opposite end faces of the fixing part 258, and the mounting hole 2582 is arranged between the two connecting holes 2581. An elastic piece 2583 and an abutting block 2584 are arranged in the mounting hole 2582, one end of the abutting block 2584 abuts against the end part of the elastic piece 2583, and the other end of the abutting block 2584 is exposed out of the end surface of the fixing piece 258. In this embodiment, the elastic member 2583 is a spring, and one end of the abutting block 2584 is inserted into the spring. The fixing member 258 has positioning grooves 2585 at two opposite ends of the front surface, and the fixing member 258 has positioning holes at the bottom surface of each positioning groove 2585. One side of the fixing member 258 facing away from the sliding guide groove 2580 is provided with a matching piece 2586 corresponding to the two sliding guide pieces 2535 of the support hinge 253, each matching piece 2586 slidably contacts the corresponding sliding guide piece 2535, that is, the matching piece 2586 and the corresponding sliding guide piece 2535 form a guide mechanism between the connection hinge 255 and the corresponding support hinge 253; each matching sheet 2586 is provided with an arc-shaped matching surface 2587 which is slidably attached to the sliding guide surface 2536 of the sliding guide sheet 2535; the guide mechanism defines a rotation track rotating around a circle center, and the circle center is positioned on the flexible part 30; specifically, the rotation axis of the engagement surface 2587 and the rotation axis of the sliding guide surface 2536 are coincident with each other and are located on the flexible member 30, and preferably, the rotation axis of the engagement surface 2587 and the rotation axis of the sliding guide surface 2536 are located on the neutral layer of the flexible member 30.
In this embodiment, two receiving grooves 2588 are formed at a position, adjacent to each positioning groove 2585, on the front surface of the fixing member 258, each receiving groove 2588 extends along a length direction perpendicular to the connecting frame 257, and ends, away from the mating piece 2586, of the two adjacent receiving grooves 2588 are communicated through the guide groove 2589. The front surface of the fixing member 258 is provided with a strip-shaped hole 25811 between two adjacent receiving grooves 2588, the strip-shaped hole 25811 extends along the length direction perpendicular to the fixing member 258, and the strip-shaped hole 25811 penetrates through the back surface of the fixing member 258.
The connecting frame 257 and the mounting frame 256 are elastically connected by a first elastic member 2570. Specifically, a plurality of first elastic members 2570 are disposed between the connecting frame 257 and the mounting frame 256, and the plurality of first elastic members 2570 elastically abut against between the connecting frame 257 and the mounting frame 256. The first elastic members 2570 are respectively received in the receiving grooves 2588 of the fixing member 258, and when the connecting frame 257 and the mounting frame 256 are assembled, one end of the first elastic member 2570 abuts against the corresponding abutting piece 2565 of the mounting frame 256, and the other end of the first elastic member 2570 opposite to the connecting piece abuts against the end surface of the receiving groove 2588 of the fixing member 258. In this embodiment, the first elastic member 2570 is a spring, and the four springs are respectively received in the four receiving grooves 2588 of the fixing member 258.
One end of the front surface of each connecting member 259 close to the fixing member 258 is provided with a connecting sheet 2591, and the connecting sheet 2591 is provided with a through hole. Two clamping columns 2592 are convexly arranged on the end surface of each connecting piece 259 facing the fixing piece 258, and a connecting hole 2593 is formed between the two clamping columns 2592 on the end surface of each connecting piece 259 facing the fixing piece 258. One end of each connecting member 259 far away from the fixing member 258 is provided with a clamping groove, and the bottom surface of each clamping groove of the connecting member 259 is provided with a plurality of fixing holes 2594. One side of the connecting member 259 is extended with a lug 2595 vertically, and the lug 2595 is opened with a sliding slot 2596 along the extending direction thereof for receiving the slide plate. The front surface of the connecting piece 259 is provided with a guide chute 2590, and the guide chute 2590 penetrates through the side surface of one side of the connecting piece 259, which is provided with a lug 2595, and the end surface which is close to the fixing piece 258; when the connecting member 259 is connected to the fixing member 258, the surface of the guide groove 2580 of the connecting member 259 is coplanar with the surface of the fixing member 258, and the mounting plate 2561 is slidably received in the guide grooves 2580, 2590. The back surface of each connecting member 259 is provided with a first guiding and sliding slot 2597 corresponding to the first connecting member 266, and the first connecting member 266 is slidably inserted into the first guiding and sliding slot 2597. One side surface of each connecting piece 259, which is far away from the lug 2595, is provided with a second guide sliding groove 2598 communicated with the sliding groove 2596, a first positioning surface 2599 is arranged between the second guide sliding groove 2598 and the corresponding sliding groove 2596 of the connecting piece 259, and the first positioning surface 2599 extends along the length direction inclined to the connecting piece 259; the connecting member 259 further has a second positioning surface 25901 connected to the first positioning surface 2599 between the second guiding slot 2598 and the sliding slot 2596, and the second positioning surface 25901 is parallel to the length direction of the connecting member 259. The back surface of the connecting piece 259 is provided with clamping grooves 25903 adjacent to the lugs 2595 at two opposite sides of the sliding groove 2596.
Each connecting hinge 255 further includes two sliding plates 252 slidably disposed in the sliding grooves 2596 of the two connecting members 259 respectively, and a connecting plate 254 covering each sliding plate 252. Each sliding plate 252 is a rectangular plate, and the sliding plate 252 has a plurality of connecting holes 2521. One end surface of the sliding plate 252 is provided with a protruding piece 2523 in a protruding manner, and the protruding piece 2523 is provided with a connecting hole 2524. The sliding plate 252 is provided with two positioning posts 2522 adjacent to the protruding tabs 2523, the two positioning posts 2522 are used for positioning two second elastic members 2525, one end of each second elastic member 2525 is connected to the sliding plate 252, and the other end is connected to the corresponding connecting member 259. In this embodiment, each of the second elastic members 2525 is a torsion spring, the torsion spring is sleeved on the corresponding positioning column 2522, one end of the torsion spring is clamped in the sliding plate 252, and the other end of the torsion spring is clamped in the corresponding clamping groove 25903. The lug 2523 is rotatably connected to a rectangular positioning piece 2526, one end of the positioning piece 2526 being provided with a rotation hole 2527, and the other end of the positioning piece 2526 opposite thereto being provided with a groove 2528 along the longitudinal direction thereof. The opposite ends of the positioning tab 2526 are respectively provided with a rounded surface, and the opposite sides of the positioning tab 2526 are parallel side surfaces.
The connecting piece 254 is used for being fixedly connected to the connecting frame 257 and covering the sliding plate 252, a guide groove 2541 is formed in the connecting piece 254 along the sliding direction of the sliding plate 252, a containing hole 2543 is formed in the middle of the connecting piece 254, and a plurality of through holes 2545 are formed in the periphery of the connecting piece 254.
Referring to fig. 13 to 16, each linkage 26 further includes a plurality of connecting shafts, each of which includes two first connecting shafts 261 arranged in parallel at intervals in the middle hinge joint 250, at least one first gear assembly 262 and at least one second gear assembly 264 sleeved on the second connecting shafts 261 respectively connected to the support hinge joints, two second connecting shafts 265 and two first link members 266; the two second connecting shafts 265 are respectively located at two opposite sides of the two first connecting shafts 261, each first connecting shaft 261 is respectively inserted into the first gear assembly 262 and the second gear assembly 264, each second connecting shaft 265 is rotatably connected with the first gear assembly 262, the second connecting shafts 265 are rotatably connected with the second gear assembly 264, one ends of the two first connecting rod members 266 are respectively connected to two opposite ends of the first gear assembly 262, and the other ends of the two first connecting rod members 266 are respectively slidably connected to the first guiding chutes 2597 of the two connecting hinges 255.
In this embodiment, the linkage mechanism 26 includes two first gear assemblies 262 and two second gear assemblies 264, two opposite ends of the first connecting shaft 261 and the second connecting shaft 265 are respectively provided with one first gear assembly 262 and one second gear assembly 264, the two second connecting shafts 265 are located between the two first gear assemblies 262, and two ends of one side of each first connecting rod 266 are fixedly connected to the two first gear assemblies 262.
In other embodiments, the number of the support joints 253 of the linkage mechanism 26 is several, and the linkage mechanism includes second connecting shafts respectively connected to the support joints.
As shown in fig. 17 and 18, each first gear assembly 262 includes a fixed member 2621 and two first transmission members 2625 disposed at opposite ends of the fixed member 2621, and each first transmission member 2625 is in gear engagement with the fixed member 2621. The two first connecting shafts 261 are inserted into the fixing members 2621, each second connecting shaft 265 is rotatably inserted into a corresponding first transmission member 2625 adjacent to the fixing member 2621, and each first link member 266 is fixedly connected to the corresponding first transmission member 2625 away from the fixing member 2621; the second gear assembly 264 includes two second transmission members 2641, the two second transmission members 2641 are engaged with each other, and each second transmission member 2641 is sleeved on the corresponding first connecting shaft 261 and the corresponding second connecting shaft 265.
Specifically, the fixing member 2621 is a rectangular body, two circular shaft holes 2622 are formed in the fixing member 2621 along a direction parallel to the axial lead of the first connecting shaft 261, two opposite end surfaces of the fixing member 2621 are respectively provided with a first gear 2623, and the first gear 2623 is a plurality of teeth in an annular array along the axial lead of the corresponding shaft hole 2622. A first stop surface 2624 is disposed on an end surface of the fixing member 2621 adjacent to each first gear 2623. Each first transmission member 2625 is generally rectangular, and two shaft holes 2626 are formed at two opposite ends of the first transmission member 2625 along a direction parallel to the axial line of the second connecting shaft 265. In this embodiment, each axial bore 2626 has a kidney-shaped cross-section. The end, facing the fixed member 2621, of the first transmission member 2625 is provided with a second gear 2627 engaged with the first gear 2623, the end face, facing the fixed member, of the first transmission member 2625 is provided with a second stop surface 2628 adjacent to the second gear 2627, and when the second stop surface 2628 is attached to the first stop surface 2624, the rotation between the first transmission member 2625 and the fixed member 2621 can be prevented, so as to prevent the flexible member 30 from being damaged due to reverse folding. An end surface of the first transmission member 2625 facing away from the second gear 2627 is configured as an arc surface.
Specifically, each of the second transmission members 2641 is substantially rectangular, and two shaft holes 2643 are formed at two opposite ends of the second transmission member 2641 along a direction parallel to the axial line of the first connecting shaft 261. Each second transmission member 2641 has a third gear 2645 at an end facing the other second transmission member 2641, the third gears 2645 of the two second transmission members 2641 are engaged with each other, and each third gear 2645 has a plurality of teeth annularly arrayed along an axial line of the corresponding axial hole 2643. The end surface of the second transmission member 2641 provided with the third gear 2645 is provided with a third stop surface 2648 adjacent to the third gear 2645, and when the two third stop surfaces 2648 are abutted against each other, the two second transmission members 2641 can be prevented from rotating relative to each other, so as to prevent the flexible member 30 from being folded back and damaged. An end surface of the second transmission member 2641 facing away from the third gear 2645 is configured as an arc surface.
As shown in fig. 15 and 16, each of the first connecting shafts 261 includes a connecting section 2611 at a middle portion thereof and positioning sections 2612 at opposite ends of the connecting section 2611, the connecting section 2611 has a circular cross-section, and the positioning sections 2612 have a kidney-shaped cross-section. Each second connecting shaft 265 includes a connecting section 2651 located at a middle portion thereof and positioning sections 2652 located at opposite ends of the connecting section 2651, the connecting section 2651 has a circular cross-section, and the positioning sections 2652 have a kidney-shaped cross-section.
Each first link member 266 includes a connecting rod 2661 slidably connected to the corresponding connecting hinge 255 and a fixing shaft 2663 disposed at one end of the connecting rod 2661, wherein opposite ends of the fixing shaft 2663 are respectively fixedly connected to the shaft holes 2626 of the corresponding first transmission members 2625 far away from the fixing member 2621. Specifically, the connecting rod 2661 is a rectangular connecting piece, the fixing shaft 2663 is fixed to one end of the connecting piece, two opposite ends of the fixing shaft 2663 extend out of the connecting rod 2661, and the cross section of the fixing shaft 2663 is kidney-shaped. The two opposite sides of the connecting rod 2661 are respectively sleeved with the guide rails 2665, the guide rails 2665 are positioned in the first guide slots 2597 of the corresponding connecting hinge 255, and the connecting rod 2661 is slidably engaged with the guide rails 2665.
Each linkage 26 further includes a first damper 267 disposed between each first connecting shaft 261 and the corresponding second connecting shaft 265, and the first damper 267 is used for providing resistance to the folding device 24 during rotation.
Specifically, the first damping member 267 includes a plurality of stacked damping pieces 2671, each damping piece 2671 is provided with two damping holes 2673 having an elastically stretchable aperture, and the first connecting shaft 261 and the second connecting shaft 265 are respectively inserted into the two damping holes 2673 in an interference fit manner.
Each of the damping pieces 2671 includes two hole circlips 2674 and a connecting portion 2675 connected between the two hole circlips 2674, that is, the two hole circlips 2674 are respectively located on opposite sides of the connecting portion 2675. Each of the hole circlips 2674 includes a first elastic shoulder protruding from one end of the connecting portion 2675, and a second elastic shoulder protruding from the other end of the connecting portion 2675. A damping hole 2673 is defined between the first elastic shoulder and the second elastic shoulder. The diameter of the damper hole 2673 is slightly smaller than the diameters of the first and second connecting shafts 261 and 265.
Each linkage 26 further includes a second damping member 268 disposed between each first connecting shaft 261 and the corresponding second connecting shaft 265, the second damping member 268 being made of an elastic material, the second damping member 268 being used for providing resistance to the rotation of the folding device 24. The second damping piece 268 is provided with two damping holes 2683 whose aperture can elastically stretch, and the first connecting shaft 261 and the second connecting shaft 265 are respectively inserted into the two damping holes 2683 in an interference fit manner. Specifically, the second damping member 268 includes two hole circlips 2684, and a connecting portion 2685 connected between the two hole circlips 2684. Each of the hole circlips 2684 includes a first elastic shoulder protruding from one end of the connecting portion 2685, and a second elastic shoulder protruding from the other end of the connecting portion 2685. A damping hole 2683 is defined between the first elastic shoulder and the second elastic shoulder. The diameter of the damper hole 2683 is slightly smaller than the diameters of the first and second connecting shafts 261 and 265.
Each linkage 26 further includes at least two second link members 269, one end of each of the two second link members 269 is connected to each of the two second connecting shafts 265, and the other end of each of the two second link members 269 is slidably connected to each of the two connecting hinges 255. Specifically, each second link 269 includes a strip-shaped link 2691 and a connecting post 2693 disposed at one end of the link 2691; one side of the connecting rod 2691 is provided with a coupling shaft 2694, the connecting column 2693 is provided with a connecting hole 2695 along the axial direction thereof, and the cross section of the connecting hole 2695 is kidney-shaped. The linkage mechanism 26 further includes a plurality of spacers 2697, each spacer 2697 defining a kidney-shaped positioning hole.
Referring to fig. 19-20, the bracelet mechanism 27 includes a first hinge 271, two second hinges 273 rotatably connected to opposite sides of the first hinge 271, and a third hinge 275 rotatably connected to each of the second hinges 273 on a side away from the first hinge 271. The first hinge 271 includes a first blocking piece 2711 with a generally triangular shape, an extending plate 2713 protruding from one side of the first blocking piece 2711, and a positioning block 2714 disposed at one end of the extending plate 2713 away from the first blocking piece 2711. The two opposite sides of one end of the first blocking piece 2711, which is far away from the extending plate 2713, are respectively provided with a convex piece 2715, the outer peripheral surface of each convex piece 2715 is provided with an arc surface, and each convex piece 2715 is provided with a shaft hole 2716 along the extending direction of the extending plate 2713. The side surface of the first blocking piece 2711 facing the positioning block 2714 is provided with a clamping hole 2712. The extending piece 2713 is provided with a through hole 2717, the end face of the positioning block 2714 departing from the first blocking piece 2711 is provided with two clamping holes 2718 at intervals, and each clamping hole 2718 is a waist-shaped hole.
Each second hinge 273 includes a second stop 2731 having a generally triangular shape and a latch 2733 protruding from one side of the first stop 2731. The two opposite sides of one end of the second blocking piece 2731, which is far away from the extension plate 2713, are respectively provided with a convex piece 2735, the outer peripheral surface of each convex piece 2735 is provided with an arc surface, the convex pieces 2735 of the second hinge piece 273 can be lapped on the convex pieces 2715 of the first hinge piece 271, and each convex piece 2735 is provided with a shaft hole 2736 along the extension direction of the extension plate 2733. The second stopper 2731 has a catching hole 2732 formed in a side surface facing the catching piece 2733. A through hole 2737 is formed in the extension piece 2733, and a clamping block 2738 is disposed on an end surface of the clamping piece 2733 away from the second retaining piece 2731.
Each third hinge member 275 includes a third stop 2751 rotatably connected to a side of the corresponding second stop 2731 away from the first hinge member 271, and a connecting piece 2753 protruding from a side of the third stop 2751. The third tab 2751 is provided with a protruding piece 2755 at one side close to the second tab 2731, the outer circumferential surface of the protruding piece 2755 is provided with an arc surface, the protruding piece 2755 of the third hinge 275 can be lapped on the protruding piece 2735 of the second hinge 273, and the shaft hole 2756 is formed in the protruding piece 2755. The connecting piece 2753 is provided with a through hole 2757.
Referring to fig. 13 and fig. 18, when the linkage mechanism 26 is assembled, the two first connecting shafts 261 and the two second connecting shafts 265 are inserted into the damping holes 2673 of the two first damping members 267, and the first connecting shaft 261 and the second connecting shaft 265 are inserted into each first damping member 267; after the third gears 2645 of the two second transmission members 2641 of one of the second gear assemblies 264 are engaged, the one of the second gear assemblies 264 is sleeved on one end of the first connecting shaft 261 and one end of the second connecting shaft 265 until the one of the second gear assemblies 264 is abutted on the first damping member 267; after the third gears 2645 of the two second transmission members 2641 of the other second gear assembly 264 are engaged, the other second gear assembly 264 is sleeved on the other ends of the first connecting shaft 261 and the second connecting shaft 265 until the other second gear assembly 264 is attached to the first damping member 267; at this time, the first damper 267 is located between the two second gear assemblies 264, and the two first connecting shafts 261 are located between the two second connecting shafts 265. Then, the second gears 2627 of the two first transmission members 2625 of each first gear assembly 262 are respectively engaged with the two first gears 2623 of the fixing member 2621, one of the first gear assemblies 262 is sleeved on the first connecting shaft 261 and one end of the second connecting shaft 265, so that the two first connecting shafts 261 are respectively inserted into the shaft holes 2622 of the fixing member 2621, and the two second connecting shafts 265 are respectively inserted into the shaft holes 2626 of the two first transmission members 2625 close to the fixing member 2621; sleeving the other first gear assembly 262 on the other ends of the first connecting shaft 261 and the second connecting shaft 265, so that the two first connecting shafts 261 are respectively inserted into the shaft holes 2622 of the fixing pieces 2621, and the two second connecting shafts 265 are respectively inserted into the shaft holes 2626 of the two first transmission pieces 2625 close to the fixing pieces 2621; the two first link members 266 are respectively disposed on two opposite sides of the two first damping members 267, such that two opposite ends of the fixed shaft 2663 of each first link member 266 are respectively inserted into the corresponding shaft holes 2626 of the second transmission member 2641. At this time, two opposite ends of the fixed shaft 2663 of each first link 266 are respectively and fixedly connected to the corresponding shaft hole 2626 of the first transmission member 2625 far away from the fixing member 2621, and two opposite ends of each second link 265 are respectively and fixedly connected to the corresponding shaft hole 2626 of the first transmission member 2625 near the fixing member 2621. The two second damping members 268 are respectively sleeved on the first connecting shaft 261 and the second connecting shaft 265 until the two second damping members 268 contact the corresponding first gear assembly 262; the two spacers 2697 are respectively sleeved on the two first connecting shafts 261, until the two spacers 2697 respectively contact the second damping piece 268; connecting posts 2693 of the two second connecting rod pieces 269 are respectively sleeved on the two second connecting shafts 265, so that the two second connecting shafts 265 are respectively and fixedly connected in the connecting holes 2695 of the two second connecting rod pieces 269.
When the linkage mechanism 26 is bent, the first link member 266 and the second link member 269 on one of the second connecting shafts 265 rotate toward the other first link member 266, the fixed shaft 2663 of the first link member 266 on one of the second connecting shafts 265 drives the second gear 2627 of the corresponding first transmission member 2625 to rotate along the corresponding first gear 2623, and meanwhile, the second link member 269 drives the second gear 2627 of the corresponding first transmission member 2625 to rotate along the corresponding first gear 2623 and drives the third gear 2645 of the corresponding second transmission member 2641 to rotate along the third gear 2645 of the corresponding other second transmission member 2641 through the corresponding second connecting shaft 265; because the fixed shaft 2663 is fixedly connected to the first transmission member 2625, the second connecting rod 269 is fixedly connected to the second connecting shaft 265, the second connecting shaft 265 is fixedly connected to the first transmission member 2625, and the second connecting shaft 265 is rotatably connected to the second transmission member 2641, the first connecting rod 266 and the second connecting rod 269 drive the corresponding first transmission member 2625 to rotate together, and the second connecting shaft 265 rotates in the shaft hole 2643 of the corresponding second transmission member 2641 and drives the second transmission member 2641 to rotate; the rotation of the second transmission member 2641 drives another second transmission member 2641 engaged therewith to rotate, the another second transmission member 2641 drives another second connection shaft 265 to rotate, and the another second connection shaft 265 drives a second gear 2627 of another first transmission member 2625 to rotate along a first gear 2623 corresponding to the fixed block 2621 and drive another first link member 266 to rotate, so that the two first link members 266 and the two second link members 269 approach each other and bend at the same time. In the linkage process, each of the first connecting shaft 261 and the second connecting shaft 265 is in interference fit with the corresponding damping hole 2673 of the damping piece 2671 and the corresponding damping hole 2683 of the second damping piece 268, so that the first damping piece 267 and the second damping piece 268 can rotate and position the two first connecting rod pieces 266 and the second connecting rod pieces 269 at any angle.
In another use mode, the two first link members 266 and the two second link members 269 can rotate together in opposite directions, and the fixed shafts 2663 of the two first link members 266 drive the second gears 2627 of the corresponding first transmission members 2625 to rotate along the corresponding first gears 2623 in opposite directions; meanwhile, the two second link members 269 also drive the second gear 2627 of the corresponding first transmission member 2625 to rotate in the opposite direction along the corresponding first gear 2623 through the corresponding second connection shaft 265, and the second connection shaft 265 drives the third gear 2645 of the corresponding second transmission member 2641 to rotate in the opposite direction along the third gear 2645 of the corresponding second transmission member 2641, so that the two first link members 266 and the two second link members 269 approach each other at the same time and are bent.
When the linkage mechanism 26 is unfolded from the bent state, one of the first link members 266 and the second link member 269 on the same side are rotated away from the other first link member 261, the fixed shaft 2663 of the one of the first link members 266 drives the second gear 2627 of the corresponding first transmission member 2625 to rotate along the corresponding first gear 2623, and meanwhile, the second link member 269 drives the second gear 2627 of the corresponding first transmission member 2625 to rotate along the corresponding first gear 2623 through the corresponding second link shaft 265 and drives the third gear 2645 of the corresponding second transmission member 2641 to rotate along the third gear 2645 of the corresponding other second transmission member 2641; because the fixed shaft 2663 is fixedly connected to the first transmission member 2625, the second connection shaft 265 is also fixedly connected to the first transmission member 2625, and the second connection shaft 265 is rotatably connected to the second transmission member 2641, the first connection rod 266 and the second connection rod 269 together drive the corresponding first transmission member 2625 to rotate away from the other first transmission member 2625, and the second connection shaft 265 rotates in the shaft hole 2643 of the corresponding second transmission member 2641 and drives the second transmission member 2641 to rotate away from the other second transmission member 2641; the rotation of the second transmission member 2641 drives another second transmission member 2641 engaged therewith to rotate, the another second transmission member 2641 drives another second connection shaft 265 to rotate, and the another second connection shaft 265 drives a second gear 2627 of another first transmission member 2625 to rotate towards the direction away from the fixed block 2621 along a first gear 2623 corresponding to the fixed block 2621 and drives another first link member 266 to rotate, so that the two first link members 266 and the two second link members 269 are simultaneously away from each other and are flattened. In the linkage process, each of the first connecting shaft 261 and the second connecting shaft 265 is in interference fit with the corresponding damping hole 2673 of the damping piece 2671 and the corresponding damping hole 2683 of the second damping piece 268, so that the first damping piece 267 and the second damping piece 268 can rotate and position the two first connecting rod pieces 266 and the second connecting rod pieces 269 at any angle.
In other usage manners, the two first link members 266 and the two second link members 269 can rotate together in opposite directions, and the fixed shafts 2663 of the two first link members 266 drive the second gears 2627 of the corresponding first transmission members 2625 to rotate along the corresponding first gears 2623 in opposite directions; meanwhile, the two second link members 269 also drive the second gear 2627 of the corresponding first transmission member 2625 to rotate in the opposite direction along the corresponding first gear 2623 through the corresponding second connection shaft 265, and the second connection shaft 265 drives the third gear 2645 of the corresponding second transmission member 2641 to rotate in the opposite direction along the third gear 2645 of the corresponding second transmission member 2641, so that the two first link members 266 and the two second link members 269 are away from each other and flattened at the same time.
Referring to fig. 5-6 and 9-12, when assembling each connecting hinge 255, two connecting members 259 are respectively connected to two opposite ends of the fixing member 258, so that the connecting sheet 2591 of each connecting member 259 is inserted into the positioning groove 2585 corresponding to the fixing member 258, the locking posts 2592 at two ends of the connecting member 259 are respectively inserted into the corresponding connecting holes 2581, the two abutting blocks 2584 are respectively inserted into the connecting holes 2593 of the two connecting members 259, and the plurality of locking members respectively pass through the through holes on the connecting sheet 2591 and are locked in the positioning holes at the bottom surfaces of the corresponding positioning grooves 2585. At this time, the inner surfaces of the guide grooves 2590 of the two connecting members 259 are flush with the inner surfaces of the guide grooves 2580 of the fixing member 258. The first elastic members 2570 are respectively accommodated in the accommodating grooves 2588, the mounting frame 256 and the connecting frame 257 are installed in a matched manner, the mounting plate 2561 of the mounting frame 256 is accommodated in a space surrounded by the guide groove 2590 of the connecting member 259 and the guide groove 2580 of the fixing member 258, the two connecting columns 2566 of the mounting frame 256 are respectively inserted into the two strip-shaped holes 25811 of the fixing member 258, and the two locking members respectively penetrate through the two strip-shaped holes 25811 and are locked on the corresponding connecting columns 2566. The locking member can slide in the strip-shaped hole 25811 along the length direction of the strip-shaped hole 25811. An inward convex annular step is formed on the inner side wall surface of the strip-shaped hole 25811, a gasket is sleeved on the locking piece, the diameter of the gasket is larger than the width of a strip-shaped groove hole defined by the annular step, and the gasket is contained in the strip-shaped hole 25811 and is slidably abutted against the top surface of the step. The locking member and the spacer are used to pull the mounting frame 256 and the connection frame 257 in the thickness direction, preventing them from being separated. The mounting frame 256 is slidable along the bar-shaped hole 25811 with respect to the connection frame 257. The two abutting pieces 2565 of the mounting frame 256 are respectively inserted into the guiding grooves 2589 of the fixing member 258, so that each first elastic member 2570 is elastically clamped between the corresponding abutting piece 2565 and the connecting frame 257, the front surface of the mounting plate 2561 is flush with the front surface of the fixing member 258, and each connecting column 2566 can slide along the corresponding strip-shaped hole 2567, i.e., the mounting frame 256 can slide along the strip-shaped hole 2567 relative to the connecting frame 257. The two positioning pieces 2526 are respectively connected to the two sliding plates 252, that is, the rotating hole 2527 of each positioning piece 2526 is opposite to the corresponding connecting hole 2524 of the sliding plate 252, and the two connecting members are respectively inserted into the rotating holes 2527 and the corresponding connecting holes 2524 of the two sliding plates 252. The two sliding plates 252 are slidably inserted into the sliding grooves 2596 of the two connecting members 259, and the two positioning pieces 2526 are respectively placed in a space surrounded by the sliding grooves 2596 and the second sliding guide grooves 2598. The second elastic members 2525 are respectively sleeved on the positioning posts 2522 of the sliding plate 252, such that one end of each second elastic member 2525 is connected to the corresponding sliding plate 252 in a clamping manner, and the other end is connected to the corresponding clamping groove 25903 in a clamping manner.
Assembling each watch chain mechanism 27, attaching one tab 2735 of the two second hinge parts 273 to the two tabs 2715 of the first hinge part 271 respectively, so that the shaft hole 2716 of each tab 2715 corresponds to the shaft hole 2736 of the corresponding tab 2735, and inserting the two rotating shafts into the shaft holes 2716 of the two tabs 2715 and the corresponding shaft holes 2736 respectively, so that the two second hinge parts 273 are rotatably connected to two opposite sides of the first hinge part 271 respectively; the tabs 2755 of the two third hinges 275 are respectively attached to the tabs 2735 on the side of the two second hinges 273 opposite to the first hinge 271, so that the shaft hole 2756 of each tab 2755 corresponds to the shaft hole 2736 of the corresponding tab 2735, the two rotating shafts are respectively inserted into the shaft holes 2756 of the two tabs 2755 and the corresponding shaft holes 2736, and the two third hinges 275 are respectively rotatably connected to the two third hinges 275.
As shown in fig. 13 and 14, the two watch chain mechanisms 27 are connected to the two linkage mechanisms 26, respectively, and the two first connecting shafts 261 of each linkage mechanism 26 at one end of the two second link members 269 are inserted into the two locking holes 2718 of the positioning block 2714 of the corresponding watch chain mechanism 27, respectively.
Referring to fig. 3 to fig. 26, when the folding device 24 is assembled, the two support hinges 253 are respectively disposed on two opposite sides of the middle hinge 250, so that the two slide guiding protrusions 2531 of each support hinge 253 are respectively slidably inserted into the guide slots 2506 of the two fixing blocks 2504 of the two middle hinges 250, and the slide guiding surface 2533 of each slide guiding protrusion 2531 is slidably attached to the slide guiding surface 2507 of the corresponding fixing block 2504 of the middle hinge 250. Placing the two linkage mechanisms 26 and the corresponding watch chain mechanisms 27 at two opposite ends of the back of the middle hinge joint 250, so that one end of each of the two first connecting shafts 261 connected to the mechanisms 26, which is far away from the corresponding watch chain mechanism 27, is inserted into the corresponding positioning hole 2505 of the fixed block 2504, the clamping blocks 2509 at two opposite ends of the middle hinge joint 250 are respectively clamped in the clamping holes 2712 of the two first hinge pieces 271, the clamping blocks 2510 at two opposite ends of the middle hinge joint 250 are respectively clamped between the positioning blocks 2714 and the first blocking pieces 2711 of the two first hinge pieces 271, and the clamping block of each first hinge piece 271 is clamped in the corresponding positioning hole 2513; a plurality of locking members are respectively inserted into the through holes 2717 of each first hinge member 271 and locked in the corresponding connecting holes 2511, so that each first hinge member 271 is fixedly connected to the middle hinge joint 250. Each second hinge part 273 connected to the mechanism 26 is connected to the end of the back of the corresponding support hinge joint 253, that is, the clamping piece 2733 of each second hinge part 273 is attached to the back of the corresponding clamping block 2532, the clamping blocks 2539 of the two opposite ends of each support hinge joint 253 are clamped in the clamping holes 2732 of the second retaining pieces 2731 of the corresponding second hinge part 273, the clamping block 2738 of each clamping piece 2733 is clamped in the corresponding clamping block 2532, and the plurality of locking members are inserted into the through holes 2737 of the second hinge parts 273 and locked in the corresponding connecting holes 2537, so that each second hinge part 273 is fixedly connected to the corresponding support hinge joint 253. At this time, the two support hinges 253 are rotatably connected to opposite sides of the middle hinge 250 by two bracelet mechanisms 27.
The two connecting hinges 255 are respectively arranged on one side of the two support hinges 253, which faces away from the middle hinge 250, so that the guide sliding surfaces 2536 of the two guide sliding pieces 2535 of each support hinge 253 are respectively and slidably attached to the corresponding matching surfaces 2587 of the matching pieces 2586; the two first link members 266 and the two second link members 269 of each linkage mechanism 26 are slidably inserted into the corresponding first guiding slot 2597 and second guiding slot 2598, respectively, and the adapting shaft 2694 of each second link member 269 is movably inserted into the corresponding strip-shaped slot 2528 of the positioning piece 2526; the clamping blocks at the two opposite ends of each connecting hinge joint 255 are respectively clamped in the third baffles 2751 of the third hinge parts 275 of the two linkage mechanisms 26, and the connecting sheets 2753 of each third hinge part 275 are respectively clamped in the clamping grooves at the ends of the corresponding connecting hinge joints 255; the two connecting pieces 254 are respectively covered on the back surfaces of the two sliding plates 252, the end of the adapting shaft 2694 of each second connecting rod 269 is slidably received in the guiding groove 2541, the connecting piece inserted in the connecting hole 2524 of the sliding plate 252 and the rotating hole 2527 of the corresponding positioning piece 2526 is opposite to the receiving hole 2543 of the connecting piece 254, and the plurality of locking pieces respectively pass through the through hole 2545 of the connecting piece 254 to be connected to the fixing hole 2594 of the corresponding connecting piece 259 so as to mount the positioning piece 2526 on the corresponding connecting piece 259, at this time, the two connecting hinges 255 are rotatably connected to the two supporting hinges 253 through the two watch chain mechanisms 27.
At this time, as shown in fig. 21 and 24, the two opposing watch chain mechanisms 27 hinge the two connecting hinges 255, the two supporting hinges 253, and the middle hinge 250 together, specifically, the two connecting hinges 255 are respectively hinged to the two corresponding supporting hinges 253, and one sides of the two supporting hinges 253 away from the corresponding connecting hinges 255 are respectively hinged to two opposing sides of the middle hinge 250. Specifically, each connecting hinge 255 rotates with the corresponding support hinge 253 through a first virtual axis a1, each support hinge 253 rotates with the middle hinge 250 through a second virtual axis a2, the two second virtual axes a2 are located between the two first virtual axes a1, and the distances from the two first virtual axes a1 to the corresponding second virtual axes a2 are the same and equal to the distance between the two second virtual axes a 2. The two connecting hinges 255 rotate about the corresponding first virtual axes a1, respectively; the two support hinges 253 rotate about the corresponding second virtual axes a2, respectively. Each first virtual axis A1 is spaced parallel to the second virtual axis A2, and the first virtual axis A1 has the same axis radius as the second virtual axis A2. In the flattened state, the distance between the two opposite side surfaces of the two connecting hinge joints 255 is L, that is, the linear distance between the two side surfaces of the two connecting hinge joints 255 at the bending outer sides when the two side surfaces are flattened is L. In this embodiment, the distance between the two opposite sides of the two connecting hinges 255 is equal to the width of the bendable region 31. The first virtual axis a1 and the second virtual axis a2 are both located outside the hinge body 25, and preferably, the first virtual axis a1 and the second virtual axis a2 are both located on the flexible element 30 covering the hinge body 25, so that the bending resistance of the flexible element 30 can be improved, and the flexible element 30 can be ensured not to be damaged to the maximum extent. Further, the first virtual axis a1 and the second virtual axis a2 may also be located on the neutral layer of the flexure. When the assembled folding device 24 is laid out flat, the front faces of the central hinge joint 250, the front faces of the two support hinge joints 253, and the front faces of the two connecting hinge joints 255 are in the same plane.
The neutral layer is that the outer layer of the flexible member 30 is stretched and the inner layer of the flexible member 30 is extruded during the bending process of the flexible member 30, and a transition layer which is not stretched and is not extruded or stretched or extruded has relatively small acting force is arranged on the section of the transition layer, the stress of the transition layer is small, and the transition layer is the neutral layer.
The flexible element 30 is attached to the top of the curved surface of each articulation hinge/swivel hinge/locating assembly/linkage in the deployed condition and is spaced from the area other than the top of each curved surface. By the above-mentioned virtual shaft scheme, the flexible member 30 can keep the length substantially unchanged when bending.
Because the straight gear is adopted for linkage in a meshing mode, compared with the mode of adopting the bevel gear for linkage in a meshing mode, the method does not need high manufacturing precision, can effectively reduce the production cost and improve the production efficiency.
Referring to fig. 1 to 4, the folding device 24 is disposed between the first frame 21 and the second frame 23, the two connecting hinges 255 and the two lugs 2595 are respectively accommodated in the first frame 21 and the second frame 23, the sliding plate 252 in the first frame 21 is fixedly connected to the first frame 21, and the sliding plate 252 in the second frame 23 is fixedly connected to the second frame 23. The mounting frame 256 and the connecting frame 257 of each connecting hinge 255 can slide relative to each other in a direction perpendicular to the first virtual axis a1, the first elastic member 2570 elastically pushes the mounting plate 2561 to slide toward a side away from the middle hinge 250, and the second elastic member 2525 elastically pushes between the corresponding sliding plate 252 and the connecting hinge 255 to move and reset the connecting hinge 255. At this time, the front surface of the folding device 24 is coplanar with the front surface of the first frame 21 and the front surface of the second frame 23, and there is a gap between the mounting plate 2561 and the corresponding connecting frame 257 along a direction perpendicular to the rotation axis of the folding device 24, that is, the first elastic member 2570 pushes the abutting piece 2565 of the mounting frame 256, so as to drive the corresponding mounting plate 2561 to move toward a side away from the middle hinge joint 250. The first frame body 21 and the second frame body 23 are pressed towards the folding device 24, so that the first elastic piece 2570 is pressed to generate elastic deformation, the two mounting plates 2561 are pressed towards the middle hinge joint 250, and the back surfaces of the two non-bending areas 33 of the flexible piece 30 are respectively attached to the front surfaces of the first frame body 21 and the second frame body 23; the back of the bendable region 31 of the flexible element 30 is attached to the front of the folding device 24, i.e. the back of the bendable region 31 of the flexible element 30 is attached to the front of two mounting plates 2561. At this time, the back of the flexible element 30 is fixed on the first frame 21, the second frame 23 and the folding device 24, the first elastic element 2570 is pre-compressed between the corresponding connecting frame 256 and the mounting frame 257, the bendable region 31 of the flexible element 30 can bend along with the bending of the folding device 24, the first elastic element 2570 pushes the mounting plate 2561 against the two opposite sides of the folding device 24 to drive the two mounting plates 2561 to push the flexible element 30 against the two opposite sides of the folding device 24, so that the flexible element 30 is always in a tensed state, and the flexible element 30 is prevented from being damaged due to arching. When the flexible member 30 is in the unfolded state, one side surface of each positioning tab 2526 is positioned to fit against the corresponding first positioning surface 2599, so that the folding device 24 is kept in the unfolded state.
Referring to fig. 27 to 33, when the electronic apparatus 100 is bent, a bending force is applied to at least one of the first frame 21 and the second frame 23 of the electronic apparatus 100, so that the connecting links 255 connected to the first frame 21 and the second frame 23 rotate in directions adjacent to each other, and the folding device 24 is bent through the linkage mechanism 26. Specifically, if a bending force is applied to the first frame body 21, the first frame body 21 drives the corresponding connecting hinge 255 to rotate relative to the supporting hinge 253 along the first virtual axis a1 toward the side away from the flexible member 30; the connecting hinge 255 drives the first link 266 and the second link 269 corresponding to the two linkage mechanisms 26 to rotate, so that the first link 266 slides along the corresponding first slide guide slot 2597, the second link 269 slides along the corresponding second slide guide slot 2598, and the second link 269 slidably pushes the positioning piece 2526 to rotate so that the positioning piece 2526 is disengaged from the first positioning surface 2599; since the fixing shaft 2663 of the first link 266 is fixedly connected to the first transmission member 2625, the second link 269 is fixedly connected to the second connecting shaft 265, the second connecting shaft 265 is fixedly connected to the first transmission member 2625, and the second connecting shaft 265 is rotatably connected to the second transmission member 2641. Therefore, the first link 266 and the second link 269 drive the second gear 2627 of the corresponding first transmission member 2625 to rotate along the corresponding first gear 2623, the second connection shaft 265 rotates in the shaft hole 2643 of the corresponding second transmission member 2641 and drives the second transmission member 2641 to rotate, so that the corresponding support hinge 253 rotates along the second virtual shaft a2 toward a side away from the flexible member 30, the sliding guide surface 2536 of the sliding guide piece 2535 slidably fits the fitting surface 2587 of the corresponding fitting piece 2586, and the sliding guide surface 2533 of the sliding guide projection 2531 slidably fits the sliding guide surface 2507 of the corresponding fixing block 2504; meanwhile, the second connecting shaft 265 also drives the first damping member 267 and the second damping member 268 to rotate along the corresponding first connecting shaft 261 towards the side far away from the flexible member 30; the third gears 2645 of the two second transmission members 2641 are respectively engaged with the other two second transmission members 2641 to rotate, so as to drive the other two second transmission members 2641 to rotate along the corresponding first connecting shafts 261 towards the side away from the flexible member 30, the other two second transmission members 2641 drive the corresponding other second connecting shafts 265 to rotate towards the side far away from the flexible element 30, since the fixing shaft 2663 of the first link 266 is fixedly connected to the first transmission member 2625, the second link 269 is fixedly connected to the second connecting shaft 265, the second connecting shaft 265 is fixedly connected to the first transmission member 2625, and the second connecting shaft 265 is rotatably connected to the second transmission member 2641, the other second connecting shaft 265 drives the first connecting rod 266 and the second connecting rod 269 to rotate towards the side away from the flexible member 30, to bring the corresponding support hinge 253 to rotate along the second virtual axis a2 towards the side away from the flexible element 30 and the connecting hinge 255 to rotate along the first virtual axis a2 towards the side of the flexible element 30; meanwhile, the first link 266 and the second link 269 slide in the corresponding first runner 2597 and second runner 2598, and the second link 269 slidably pushes the positioning piece 2526 to rotate, so that the positioning piece 2526 is separated from the first positioning surface 2599; until the second link rod 269 pushes the positioning piece 2526 to rotate until the opposite side surfaces of the positioning piece 2526 are positioned and attached to the second positioning surfaces 25901 respectively, so as to position the folding device 24 in a bent state, the bendable region 31 of the flexible member 30 bends along with the folding device 24 until the first frame 21 is attached to the back surface of the second frame 23. When the folding device 24 is unfolded again, the ends of the second link members 269 gradually move away from the side surfaces of the sliding plate 258 to separate from each other, and the side surfaces of the positioning pieces 2526 gradually move toward the first positioning surfaces 2599 from a state of being separated from the first positioning surfaces 2599 until the side surfaces abut against each other. Because the side surface of the positioning piece 2526 abuts against the first positioning surface 2599 in the unfolded state and the end of the second link member 269 abuts against the side surface of the sliding plate 258 in the bent state, the second frame 23 is limited in the unfolded state and the bent state, and the collapse caused by side impact (such as falling) is reduced or avoided. Of course, in other embodiments, the second frame 23 may be limited only in the bent state or the unfolded state, and the corresponding structure may also be simplified.
Alternatively, during the bending process, the two mounting frames 256 slide relative to the first frame 21 and the second frame 23, respectively. Alternatively, one of the mounting frames 256 slides relative to the first frame body 21 toward the first frame body 21, and the other mounting frame 256 slides relative to the second frame body 23 toward the second frame body 23. Alternatively, the sliding distance of the first frame body 21 with respect to the corresponding mounting frame 256 is equal to the sliding distance of the second frame body 23 with respect to the corresponding mounting frame 256. During the flattening process, the two mounting frames 256 slide with respect to the first frame body 21 and the second frame body 23, respectively. Alternatively, one of the mounting frames 256 slides away from the first frame body 21 relative to the first frame body 21, and the other mounting frame 256 slides away from the second frame body 23 relative to the second frame body 23. Alternatively, the sliding distance of the first frame body 21 with respect to the corresponding mounting frame 256 is equal to the sliding distance of the second frame body 23 with respect to the corresponding mounting frame 256.
At this time, the folding device 24 is bent, and the flexible member 30 is bent along with the folding device 24, so that the upper surface of the mounting plate 2561 on the connecting hinge 255, the upper surface of the support hinge 253 and the upper surface of the middle hinge 250 are connected to each other to form an arc-shaped arc surface, thereby facilitating the attachment of the flexible member 30. As shown in fig. 27, the distance between the two opposite sides of the connecting hinge joint 255 in the bent state along the bending outer side of the hinge main body 25 is also L, that is, the linear distance between the two connecting hinge joints 255 of the hinge main body 25 located on the bending outer side in the unfolded state is equal to the distance along the bending outer side of the hinge main body 25 in the folded state, so that the width of the bendable region 31 of the flexible member 30 covered on the hinge main body 25 in the bent state is equal to the width in the unfolded state, and the flexible member 30 can be prevented from being damaged by being extruded or stretched. When the hinge body 25 is in the bent state, the first virtual axis a1 and the second virtual axis a2 are both located outside the hinge body 25, and preferably, the first virtual axis a1 and the second virtual axis a2 are located on a neutral layer of the flexure 30 covering the hinge body 25. The first virtual axis a1 and the second virtual axis a2 of the hinge main body 25 of the present invention are both located on the neutral layer when the electronic device 100 is bent or flattened, so as to ensure that the flexible element 30 is not damaged to the maximum extent.
During the bending process of the folding device 24, the connecting frames 257 of the two connecting hinges 25 can slide relative to the first frame body 21 and the second frame body 23 along the direction perpendicular to the bending axis of the folding device 24, and the mounting frame 256 of each connecting hinge 25 can slide relative to the connecting frames 257, so that the connecting hinges 25 complete compensation movement; the two first connecting shafts 261 and the two second connecting shafts 265 respectively rotate in the damping holes 2673 of the two first damping members 267 and the damping holes 2683 of the two second damping members 268, the elastic retainer ring 2674 of each first damping member 267 is rotatably sleeved on the corresponding first connecting shaft 261 and the second connecting shaft 265, and the first connecting shaft 261 and the second connecting shaft 265 are respectively inserted in the corresponding first damping members 267 in an interference fit manner; the hole of each second damping piece 268 is rotatably sleeved on the corresponding first connecting shaft 261 and second connecting shaft 265 by circlips, and the first connecting shaft 261 and the second connecting shaft 265 are respectively inserted into the corresponding second damping piece 268 in an interference fit manner; therefore, the folding device 24 can be positioned at any angle during the bending process, the distance between the two opposite sides of the two connecting hinge joints 255 bent to any angle of the hinge main body 25 is not changed, that is, the width of the bendable region 31 of the flexible element 30 bent to any angle is not changed, and the mounting frames 256 of the two connecting hinge joints 255 keep the flexible element 30 in a tense state, so that the flexible element 30 can be prevented from being arched to damage the screen during the bending or flattening process, and the flexible element 30 can be ensured not to be damaged to the maximum extent.
In another bending manner of the electronic device 100, a bending force may be simultaneously applied to the first frame 21 and the second frame 23, and the first frame 21 and the second frame 23 respectively drive the corresponding connecting hinge 255 to rotate relative to the supporting hinge 253 towards a side away from the flexible part 30, so as to realize bending of the electronic device 100 through the linkage mechanism 26.
When the electronic apparatus 100 needs to be unfolded, the first frame 21 or the second frame 23 is pulled outward, and the connecting links 255 connected to the first frame 21 and the second frame 23 are rotated in directions away from each other. Specifically, when a force is applied to at least one of the first frame 21 and the second frame 23 of the electronic device 100 to pull the first frame 21 and the second frame 23 outward, the connecting links 255 connected to the first frame 21 and the second frame 23 rotate in a direction away from each other, the two first link members 266 of each linkage mechanism 26 rotate in a direction away from each other, and the two second link members 269 rotate in a direction away from each other. If a force pulling outward is applied to the first frame body 21, the first frame body 21 drives the corresponding connecting hinge 255 to rotate towards one side of the flexible member 30 relative to the supporting hinge 253; the connecting hinge 255 drives the first link member 266 and the second link member 269 of the two linkage mechanisms 26 to rotate, so that the first link member 266 slides along the corresponding first guide slot 2597, the second link member 269 slides along the corresponding second guide slot 2598, the second link member 269 slidably pulls the positioning piece 2526 to rotate, so that the positioning piece 2526 is separated from the joint with the second positioning surface 25901, because the fixing shaft 2663 of the first link member 266 is fixedly connected with the first transmission member 2625, the second link member 269 is fixedly connected with the second connecting shaft 265, the second connecting shaft 265 is fixedly connected with the first transmission member 2625, and the second connecting shaft 265 is rotatably connected with the second transmission member 2641; therefore, the first link 266 and the second link 269 drive the second gear 2627 of the corresponding first transmission member 2625 to rotate along the corresponding first gear 2623, the second connection shaft 265 rotates in the shaft hole 2643 of the corresponding second transmission member 2641 and drives the second transmission member 2641 to rotate, so that the corresponding support hinge 253 rotates along the second virtual shaft a2 toward one side of the flexible member 30, the sliding guide surface 2536 of the sliding guide piece 2535 slidably fits the fitting surface 2587 of the corresponding fitting piece 2586, and the sliding guide surface 2533 of the sliding guide projection 2531 slidably fits the sliding guide surface 2507 of the corresponding fixing block 2504; meanwhile, the second connecting shaft 265 also drives the first damping member 267 and the second damping member 268 to rotate along the corresponding first connecting shaft 261 towards one side of the flexible member 30; the third gears 2645 of the two second transmission members 2641 are respectively engaged with the third gears 2645 of the other two second transmission members 2641 to rotate, so as to drive the other two second transmission members 2641 to rotate along the corresponding first connecting shafts 261 towards one side of the flexible element 30, the other two second transmission members 2641 drive the corresponding other second connection shafts 265 to rotate towards one side of the flexible element 30, since the fixing shaft 2663 of the first link 266 is fixedly connected to the first transmission member 2625, the second link 269 is fixedly connected to the second connecting shaft 265, the second connecting shaft 265 is fixedly connected to the first transmission member 2625, and the second connecting shaft 265 is rotatably connected to the second transmission member 2641, the other second connecting shaft 265 drives the corresponding first connecting rod 266 and the second connecting rod 269 to rotate towards one side of the flexible member 30, to drive the corresponding support hinge 253 to rotate along the second virtual axis a2 toward one side of the flexible element 30 and the connecting hinge 255 to rotate along the first virtual axis a2 toward one side of the flexible element 30; meanwhile, the first link 266 and the second link 269 slide in the corresponding first runner 2597 and second runner 2598, and the second link 269 slidably pulls the positioning piece 2526 to rotate, so that the positioning piece 2526 is separated from the joint with the second positioning surface 25901; until the second link rod 269 pulls the positioning plate 2526 to rotate until the side surface of the positioning plate 2526 is positioned and attached to the first positioning surface 2599, so that the positioning and folding device 24 is in a flattened state, and the second stop surface 2628 of each first transmission member 2625 of each first gear assembly 262 is positioned and attached to the corresponding first stop surface 2624 and the third stop surfaces 2648 of the two second transmission members 2641 of each second gear assembly 264, so as to prevent the linkage mechanism 26 from being bent backwards, thereby preventing the flexible element 30 from being damaged. In addition, in the process of flattening the folding device 24, the two second connecting shafts 265 respectively rotate in the damping holes 2673 and 2683 of the first damping members 267 and the second damping members 268, each of the first damping members 267 and the second damping members 268 is rotatably sleeved on the corresponding first connecting shaft 265 far away from the elastic retainer ring of the corresponding second connecting shaft 261, and the first connecting shaft 261 and the second connecting shaft 265 are respectively inserted in the corresponding first damping member 267 and the second damping member 267 in an interference fit manner, so that the folding device 24 can be positioned at any angle in the process of flattening. Since the distance between the two opposite side surfaces of the two connecting hinge joints 255 bent or flattened to any angle is not changed, that is, the width of the bendable region 31 of the flexible member 30 bent or flattened to any angle is not changed, the flexible member 30 can be prevented from arching to damage the screen in the bending or flattening process of the flexible member 30, and the flexible member 30 can be ensured not to be damaged to the maximum extent.
In another way of flattening the electronic apparatus 100, only the second housing 23 may be applied with a force of pulling outward, and the second housing 23 may be flattened by the link mechanism 26 to the electronic apparatus 100.
In other bending modes of the electronic device 100, a force for pulling the first frame 21 and the second frame 23 outward may be applied simultaneously, and the first frame 21 and the second frame 23 respectively drive the corresponding connecting hinge 255 to rotate towards one side of the flexible component 30 relative to the supporting hinge 253, so as to flatten the electronic device 100.
The first elastic element 2570 and the second elastic element 2525 are compressed when the bendable hinge is unfolded and bent, the compression degree of the first elastic element 2570 when the bendable hinge is unfolded is smaller than the compression degree of the first elastic element 2570 when the bendable hinge is bent, and the compression degree of the second elastic element 2525 when the bendable hinge is unfolded is smaller than the compression degree of the second elastic element 2525 when the bendable hinge is bent. When the bendable hinge is bent, the amount of compression of the second elastic element 2525 is greater than that of the first elastic element 2570. When the bendable hinge is bent, the positions of the flexible members 30 corresponding to the first frame 21 and the second frame 23 are relatively fixed, and the positions corresponding to the bendable hinge are relatively slid.
The foregoing is illustrative of embodiments of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the embodiments of the present invention and are intended to be within the scope of the present invention.

Claims (34)

1. The utility model provides a folding device, its characterized in that, including the hinge main part and set up in an at least link gear of hinge main part, the hinge main part includes a plurality of hinge joint units that connect gradually, the hinge joint unit is in link gear's drive down homonymy rotates, and is a plurality of the hinge joint unit is including the connection hinge joint that is located at least one side, the connection hinge joint is used for folding device's the compensation of buckling.
2. The folding apparatus of claim 1, wherein the plurality of hinge units further include a central hinge at a central portion and support hinges connected to opposite sides of the central hinge, each support hinge connected to the connecting hinge at a side thereof remote from the central hinge, each connecting hinge including a mounting frame connected to the corresponding support hinge and a connecting frame slidably connected to the mounting frame, and the connecting frame of each connecting hinge and the mounting frame being moved relative to each other to compensate for bending.
3. The folding apparatus of claim 2, wherein each support hinge and corresponding connecting hinge rotate via a first virtual axis, and wherein the central hinge and each support hinge rotate via a second virtual axis, the first virtual axis being spaced parallel to the second virtual axis.
4. The folding apparatus of claim 3, wherein the first virtual axis has an axis radius that is the same as an axis radius of the second virtual axis.
5. The folding device of claim 3, wherein the axis of the first virtual shaft and the axis of the second virtual shaft are located on a flexible member that overlies the hinge body.
6. The folding apparatus of claim 2, wherein at least one of said linkages is disposed at said middle hinge, at least one of said linkages includes two first link members disposed at opposite sides thereof, and ends of the two first link members remote from said middle hinge are slidably connected to the mounting frames of the two connecting hinges, respectively, wherein one of the connecting hinges rotates relative to said middle hinge to rotate the corresponding first link member, and the other first link member and the other connecting hinge are also rotated toward the same side by said linkage.
7. The folding apparatus of claim 2, wherein a plurality of first elastic members are disposed between the connecting frame and the mounting frame of each connecting hinge joint, and the plurality of first elastic members elastically urge the connecting frame to slide relative to the mounting frame away from the central hinge.
8. The folding device of claim 7, wherein the front surface of the mounting frame is provided with a plurality of receiving grooves, a plurality of the first elastic members are respectively received in the plurality of receiving grooves, the connecting frame comprises a mounting plate covering the front surface of the mounting frame and a plurality of abutting pieces protruding from the back surface of the mounting plate, the plurality of abutting pieces are respectively inserted in the plurality of receiving grooves, one end of each first elastic member abuts against the corresponding abutting piece, and the other end of the first elastic member abuts against the end surface of the corresponding receiving groove far away from the abutting piece.
9. The folding apparatus as claimed in claim 2, wherein opposite ends of the mounting frame respectively extend to a side away from the middle hinge joint to form a protruding lug, each protruding lug is provided with a sliding slot along the extending direction thereof, a sliding plate is slidably disposed in the sliding slot, and a second elastic member is disposed between each sliding plate and the mounting frame, and the second elastic member is used for driving the mounting frame to move and return.
10. The folding apparatus as claimed in claim 9, wherein the linkage mechanism further comprises two spaced parallel first connecting shafts connected to the middle hinge joint, at least one first gear assembly and at least one second gear assembly sleeved on the two first connecting shafts, and two second connecting shafts, the two first connecting shafts are located between the two second connecting shafts, each second connecting shaft is respectively inserted into at least one first gear assembly and at least one second gear assembly, each second connecting shaft is fixedly connected to the first gear assembly, the second connecting shafts are rotatably connected to the second gear assembly, one ends of the two first connecting rods are respectively connected to two opposite ends of the at least one first gear assembly, and the other ends of the two first connecting rods are respectively slidably connected to the two connecting hinge joints.
11. The folding apparatus as claimed in claim 10, wherein said first gear assembly includes a fixed member and two first transmission members disposed at opposite ends of said fixed member, each first transmission member is in gear engagement with said fixed member, two first connecting shafts are inserted into said fixed member, each second connecting shaft is fixedly inserted into a corresponding first transmission member adjacent to said fixed member, and each first link member is fixedly connected to a corresponding first transmission member remote from said fixed member; the second gear assembly comprises two second transmission parts, the two second transmission parts are matched with each other through gears, and each second transmission part is sleeved on the corresponding first connecting shaft and the corresponding second connecting shaft.
12. The folding apparatus as claimed in claim 11, wherein the first transmission member has two opposite ends provided with respective axial holes along a direction parallel to an axial line of a second connecting shaft, the second connecting shaft is fixedly inserted into the axial holes of the adjacent fixing members, each first connecting member includes a connecting rod slidably connected to the corresponding connecting hinge and a fixing shaft disposed at one end of the connecting rod, and the fixing shaft is fixedly inserted into the axial hole of the corresponding first transmission member away from the fixing member.
13. The folding apparatus of claim 2, wherein each support hinge is rotatably connected to the corresponding mounting frame by a circular guide piece and a circular fitting piece, the guide piece slidably contacting the fitting piece, and an axis of the guide piece coincides with a rotation axis of the support hinge and the middle hinge.
14. The folding apparatus of claim 13, wherein each support hinge is provided with at least one said guide tab on a side facing the corresponding mounting frame, and wherein the side of the connecting frame facing the support hinge is provided with a mating tab corresponding to the guide tab.
15. The folding apparatus of claim 14, wherein said guide slide is provided with a guide slide surface having a circular arc shape, and said engagement piece is provided with an engagement surface slidably engaged with said guide slide surface.
16. The folding apparatus of claim 2 wherein a guide mechanism is disposed between each support hinge and the central hinge, the guide mechanism including an arcuate guide slot disposed on the central hinge facing the support hinge and a slide guide tab disposed on the support hinge corresponding to the guide slot, the slide guide tab being slidably received in the guide slot.
17. The folding apparatus of claim 16 wherein said slide guide projection is provided with an arcuate slide guide surface slidably engaging said guide slot, and wherein said slide guide surface has a rotational axis coincident with said slide guide surface rotational axis.
18. The folding apparatus as claimed in claim 10, wherein said linkage mechanism further comprises two second link members respectively connected to the two second connecting shafts, each second link member is connected to the corresponding slide plate via a positioning plate, one end of said positioning plate is movably connected to the corresponding second link member, and the other end of said positioning plate is rotatably connected to the corresponding slide plate.
19. The folding apparatus as claimed in claim 18, wherein a side of the mounting frame facing away from the lug is provided with a second guide slot communicating with each guide slot, each second link member is slidably inserted into the corresponding second guide slot, and each positioning plate is located between the corresponding second guide slot and the guide slot.
20. The folding apparatus of claim 19, wherein the connecting frame is provided with a first positioning surface between each second guiding slot and the corresponding slot, and the positioning plate is positioned on the first positioning surface to position the hinge body in a flattened state.
21. The folding apparatus of claim 20, wherein said connecting frame further comprises a second positioning surface connected to said first positioning surface, said positioning tab being positioned on said second positioning surface to position said hinge body in a folded state.
22. An electronic device comprising a flexible member, a housing and the folding device according to any one of claims 1 to 21, wherein the housing comprises a first frame and a second frame, the folding device is disposed between the first frame and the second frame, the flexible member is disposed on the housing and the folding device, and the flexible member is bent or flattened along with the folding device.
23. A linkage mechanism is characterized by comprising two first connecting rod pieces, a first gear assembly, a second gear assembly, two first connecting shafts and two second connecting shafts, wherein the first gear assembly comprises a fixing piece and first transmission pieces located at two opposite ends of the fixing piece, the second gear assembly comprises two second transmission pieces, the two second transmission pieces are in gear fit, the two first connecting shafts are inserted into the fixing piece and the two second transmission pieces, the two second connecting shafts are fixedly inserted into the two first transmission pieces and the two second transmission pieces respectively, the two first connecting shafts are located between the two second connecting shafts, and one ends of the two first connecting pieces are fixed at one ends, far away from the fixing piece, of the two first transmission pieces respectively.
24. The linkage mechanism according to claim 23, further comprising two second link members, the two second link members being fixed to the two second connecting shafts, respectively.
25. The linkage of claim 23 wherein each first link shaft is sleeved with a damping member adjacent to the second link shaft.
26. A folding device is characterized by comprising a hinge main body and at least one linkage mechanism arranged on the hinge main body; the hinge main body comprises a plurality of hinge joint units, and the hinge joint units synchronously rotate under the action of the linkage mechanism.
27. The folding apparatus of claim 26, wherein said plurality of hinge elements includes a central hinge and a plurality of support hinges symmetrically disposed on opposite sides of said central hinge, said plurality of support hinges being adapted to rotate synchronously toward and away from said central hinge by said linkage.
28. The folding apparatus of claim 27, wherein said linkage further comprises a connecting shaft including two spaced parallel first connecting shafts disposed at said central hinge, and second connecting shafts respectively connected to said support hinges.
29. The folding apparatus of claim 28, wherein said linkage further comprises at least one gear assembly having a plurality of gear members, each gear member defining an axial bore and a gear; the first connecting shaft and the second connecting shaft are respectively inserted into the shaft holes, so that the connection between two adjacent connecting shafts is realized; two adjacent connecting shafts are meshed and connected through gears, so that the two adjacent connecting shafts can synchronously rotate.
30. The folding apparatus of claim 29, wherein said support hinges are two in number.
31. The folding apparatus of claim 30, further comprising two connecting hinges, each supporting hinge connecting the connecting hinge on a side thereof remote from the central hinge, each connecting hinge including a mounting frame connected to the corresponding supporting hinge and a connecting frame slidably connected to the mounting frame, and the connecting frame and the mounting frame of each connecting hinge being movable relative to each other to compensate for bending.
32. The folding apparatus of claim 31, wherein said linkage further includes a first link member connected to said connecting hinge.
33. The folding apparatus of claim 32, wherein said gear assembly includes a stationary member, a first transmission member, a second transmission member; the first transmission piece is provided with a first shaft hole, a second shaft hole and a first gear; the second transmission piece is provided with a third shaft hole, a fourth shaft hole and a second gear; the fixed piece is provided with a fifth shaft hole, a sixth shaft hole, a third gear and a fourth gear.
34. The folding apparatus of claim 33, wherein said link member has a fixed shaft; the fixed shaft is fixedly connected with a first shaft hole of the first transmission piece; the connecting shaft is rotatably connected to the fourth shaft hole of the second transmission piece and is fixedly connected to the fifth shaft hole or the sixth shaft hole of the fixing piece; the second connecting shaft is rotatably connected to the second shaft hole of the first transmission piece and the third shaft hole of the second transmission piece.
CN201911004576.4A 2019-07-15 2019-10-21 Linkage mechanism, folding device and electronic equipment Pending CN112228445A (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
PCT/CN2019/096011 WO2021007750A1 (en) 2019-07-15 2019-07-15 Folding device and electronic apparatus
CNPCT/CN2019/096011 2019-07-15
CNPCT/CN2019/101253 2019-08-18
PCT/CN2019/101260 WO2021007914A1 (en) 2019-07-15 2019-08-18 Bendable device
CNPCT/CN2019/101260 2019-08-18
PCT/CN2019/101253 WO2021007907A1 (en) 2019-07-15 2019-08-18 Linkage mechanism, folding device, and electronic apparatus
PCT/CN2019/103742 WO2020211257A1 (en) 2019-04-18 2019-08-30 Covering mechanism, folding device and electronic apparatus
CNPCT/CN2019/103742 2019-08-30
PCT/CN2019/104429 WO2021007936A1 (en) 2019-07-15 2019-09-04 Linkage mechanism, folding device, and electronic device
CNPCT/CN2019/104429 2019-09-04

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CN201911009129.8A Pending CN112235439A (en) 2019-07-15 2019-10-21 Folding device and electronic equipment
CN201921780752.9U Active CN211778479U (en) 2019-07-15 2019-10-21 Folding device and electronic equipment
CN201911004576.4A Pending CN112228445A (en) 2019-07-15 2019-10-21 Linkage mechanism, folding device and electronic equipment

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CN201911009129.8A Pending CN112235439A (en) 2019-07-15 2019-10-21 Folding device and electronic equipment
CN201921780752.9U Active CN211778479U (en) 2019-07-15 2019-10-21 Folding device and electronic equipment

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CN112228446A (en) 2021-01-15

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Application publication date: 20210115