Stress-free folding mechanism

Abstract

Provides a stress-free folding mechanism. [Solution] The disclosed stress-free folding mechanism of the present invention includes a base module and a folding module to which a flexible material is connected and which is rotatably connected to the base module to realize the folding operation of the flexible material. The folding module includes a folding body arranged at a distance from the base module, a rotating drive member having one end rotatably connected to the base module and the other end rotatably connected to the folding body, and an interlocking member slidably connected to the folding body via a slide member.

Description

[Technical field]

[0001] The present invention relates to a folding mechanism for stress-free operation, and more particularly to a folding mechanism for stress-free operation that minimizes stress acting on a flexible material being folded or prevents stress acting on the flexible material being folded when performing a folding durability test on the flexible material. [Background technology]

[0002] Generally, conventional display panels used for displays such as televisions, computer monitors, and various portable electronic devices use non-flexible glass substrates, and therefore have a flat structure and are monotonous, with limited applications.

[0003] With the development of science and technology, flexible display devices that can be bent using flexible materials such as plastics instead of inflexible glass substrates have been developed and produced recently. For example, flexible display panel technologies that can be folded or rolled up like a scroll have been developed.

[0004] As such, with the emergence of new products in which flexible displays are folded, there is a need for technology that can minimize the stress acting on a folded flexible display or prevent the stress acting on a folded flexible display when conducting a folding durability test of the flexible display. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Korean Patent No. 10-2255147 (Announced on May 24, 2021, Name of invention: Flexible material 360-degree bidirectional folding durability evaluation device) Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made to solve the above-mentioned problems, and its object is to provide a stress-free folding mechanism that minimizes the stress acting on the folded flexible material or prevents the stress acting on the folded flexible material when conducting a folding durability test of the flexible material. [Means for solving the problem]

[0007] A folding mechanism for stress-free operation according to a preferred embodiment of the disclosed present invention includes a base module and a folding module to which a flexible material is attached and which is rotatably connected to the base module to realize a folding operation of the flexible material, the folding module including a folding body arranged at a distance from the base module, a rotating drive member having one end rotatably connected to the base module and the other end rotatably connected to the folding body, and an interlocking member slidably connected to the folding body via a slide member.

[0008] As a result, when performing a folding durability test of a flexible material, the stress acting on the folded flexible material can be minimized or the stress acting on the folded flexible material can be prevented. Also, the folding operation of the flexible material can be clearly realized. Also, when the folding operation of the flexible material is realized, since the sliding method and the rotating method are performed in parallel, the moving path of the folding body and the moving path of the interlocking member form a smooth curved path, and the occurrence of stress on the flexible material can be prevented.

[0009] Here, the pivot drive member includes a folding bracket, a folding mounting module that rotatably connects one end of the folding bracket to the base module, and a pivot mounting module that rotatably connects the other end of the folding bracket to the folding body.

[0010] This makes the rotational movement of the folding bracket smooth with respect to the base module, and makes the rotational movement of the folding body smooth with respect to the folding bracket, so that a curved trajectory can be stably formed.

[0011] Here, the base module is provided with a folding support bracket, and the folding mounting module includes a folding hole portion provided on one end of the folding bracket and one of the folding support brackets, a folding shaft portion coupled to the one end of the folding bracket and the other of the folding support brackets, and a folding bearing fitted into the folding hole portion and rotatably coupled to the folding shaft portion.

[0012] This allows a clear rotational movement of the folding bracket relative to the base module.

[0013] Here, the rotatable mounting module includes a pivot hole portion provided in either the other end of the folding bracket or the folding body, a pivot shaft portion connected to the other end of the folding bracket and the other of the folding body via a pivot bracket, and a pivot bearing fitted into the pivot hole portion and rotatably connected to the pivot shaft portion.

[0014] This allows the rotational movement of the folding body to be clearly realized based on the folding bracket.

[0015] In this case, the sliding member includes an interlocking guide connected to one of the folding body and the interlocking member so as to form a sliding movement path of the interlocking member based on the folding body, and a plurality of interlocking sliders connected to the other of the folding body and the interlocking member so as to be slidably connected to the interlocking guide.

[0016] This allows the interlocking member to smoothly slide relative to the folding main body.

[0017] The sliding member further includes an interlocking bracket coupled to the other of the folding body and the interlocking member, and to which a plurality of interlocking sliders are coupled.

[0018] This allows multiple interlocking sliders to be modularized, making it possible to clearly define the sliding movement of the interlocking members relative to the folding main body, and to minimize the clearance caused by the sliding movement.

[0019] The stress-free folding mechanism according to a preferred embodiment of the disclosed invention further includes a jig module coupled to the folding module while being coupled to the base module so that the flexible material can be attached thereto.

[0020] This simplifies the attachment of the flexible material and enables the folding action of the flexible material to be clearly realized.

[0021] The stress-free folding mechanism according to a preferred embodiment of the disclosed invention further includes a jig attachment / detachment module for detachably coupling the jig module to the base module.

[0022] This allows the jig module to be replaced in a variety of ways depending on the type of flexible material or the type of test, and also makes it easy to attach and detach the jig module to and from the base module.

[0023] Here, the jig module is provided with a fixed jig connection portion, and the jig detachment module includes a detachment base provided with a member fixed position portion where the fixed jig connection portion is positioned, and a base detachment member that detachably connects the detachment base to the base module.

[0024] This allows the jig module to be positioned in a fixed position on the base module.

[0025] Here, the jig module includes a fixing member that is connected to the base module so as to support one side of the flexible material, a folding member that is positioned away from the fixing member and connected to the folding module so as to support the other side of the flexible material, and a rotating support member that connects adjacent ends of the fixing member and the folding member.

[0026] This allows the jig module to be stably connected to the base module and the folding module, and the folding operation of the flexible material can be clearly realized in accordance with the operation of the folding module, thereby suppressing or preventing stress on the flexible material.

[0027] Here, the rotatable support member includes a fixed support shaft that forms a rotation center of the rotatable support member based on the fixed member, and a folding support shaft that is arranged away from the fixed support shaft and forms a rotation center of the folding member based on the rotatable support member, and when the folding member is folded based on the fixed member, the rotatable support member rotates based on the fixed member in conjunction with the rotation of the folding member based on the rotatable support member.

[0028] This facilitates the coordinated operation between the fixed member, folding member and rotatable support member, and by the fixed member, folding member and rotatable support member rotating in coordination with each other, stress acting on the flexible material can be reduced or prevented.

[0029] Here, the rotatable support member includes a mounting bracket disposed between the fixed member and the folding member, a fixed support member connected to the fixed member and rotatably connected to the mounting bracket via the fixed support shaft, and a folding support member connected to the folding member and rotatably connected to the mounting bracket via the folding support shaft, and the fixed support member and the folding support member are gear-coupled to each other.

[0030] This clarifies the coordinated rotation between the mounting bracket, the fixed support member, and the folding support member, and reduces or prevents stress on the flexible material when it is folded.

[0031] Here, the jig module further includes a pair of rotors symmetrically spaced apart from each other and rotatably coupled to the rotary support member.

[0032] As a result, when the flexible material is folded, the area where the flexible material is bent is assisted to form a drop shape, and the area where the flexible material is bent is covered to protect the flexible material. In addition, when the folding of the flexible material is completed, the opposing flexible materials are ensured to be parallel and close to each other, and the thickness after folding is completed can be reduced. In addition, the bending marks in the area where the flexible material is bent can be minimized, and the flatness of the flexible material can be improved in the unfolded state where the flexible material is unfolded, making the surface of the flexible material smooth.

[0033] Here, the rotor is provided with an idle stopper that is engaged with the rotation support member when the flexible material is in an idle state where it is spread out.

[0034] This allows the fixing member, folding member and rotor to be arranged flat on the same plane when the flexible material is unfolded, thereby allowing the flexible material to be kept flat in the unfolded state.

[0035] Here, a side of the fixed member facing the folding member is provided with a fixed wing blocking portion that blocks rotation of the rotor when folding of the flexible material is completed, and a side of the folding member facing the fixed member is provided with a folding wing blocking portion that blocks rotation of the rotor when folding of the flexible material is completed, the fixed wing blocking portion and the folding wing blocking portion being symmetrical to each other.

[0036] As a result, when the folding of the flexible material is completed, the drop-shaped shape of the area where the flexible material is bent can be stably maintained, and deformation of the area where the flexible material is bent can be prevented.

[0037] Here, the side of the rotor is provided with a wing support portion that is supported by the fixed wing blocking portion and the folding wing blocking portion when the folding of the flexible material is completed.

[0038] As a result, when the folding of the flexible material is completed, the drop-shaped shape of the area where the flexible material is bent can be stably maintained, and deformation of the area where the flexible material is bent can be prevented.

[0039] Here, a fixed position groove portion is recessed into one of the side surface of the fixed member facing the folding member and the rotor, a folding position groove is recessed into one of the side surface of the folding member facing the fixed member and the rotor, and a wing position protrusion portion is protruded on the other of the side surface of the fixed member facing the folding member and the rotor, and on the other of the side surface of the folding member facing the fixed member and the rotor, which can be inserted into and removed from the fixed position groove portion and the folding position groove, respectively, in response to the folding operation of the flexible material.

[0040] This allows the fixed member, the folding member, and the rotor to be operated individually and allows the rotor to be positioned in a fixed position between the fixed member and the folding member. Effect of the Invention

[0041] According to the preferred embodiment of the present invention, the stress-free folding mechanism can minimize or prevent stress acting on the folded flexible material when performing a folding durability test of the flexible material. Also, the folding action of the flexible material can be clearly realized. Also, since the sliding method and the rotating method are performed in parallel when the folding action of the flexible material is realized, the moving path of the folding body and the moving path of the interlocking member form a smooth curved path, and the occurrence of stress on the flexible material can be prevented.

[0042] In addition, the present invention smoothes the rotational movement of the folding bracket with respect to the base module, and smoothes the rotational movement of the folding body with respect to the folding bracket, so that a curved trajectory can be stably formed.

[0043] Furthermore, the present invention can clearly realize the rotational movement of the folding bracket with respect to the base module.

[0044] In addition, the present invention can clearly realize the rotational movement of the folding body based on the folding bracket.

[0045] In addition, the present invention can facilitate the sliding movement of the interlocking member relative to the folding body. In addition, since multiple interlocking sliders are modularized, the sliding movement of the interlocking member relative to the folding body can be clarified, and the clearance caused by the sliding movement can be minimized.

[0046] In addition, the present invention simplifies the installation of the flexible material and clearly realizes the folding action of the flexible material.

[0047] In addition, the present invention allows the jig module to be replaced in various ways depending on the type of flexible material or the type of test, and allows the jig module to be easily attached and detached to and from the base module.

[0048] The present invention also allows the fixture module to be positioned in a fixed position on the base module.

[0049] In addition, the present invention stably connects the jig module to the base module and the folding module, and can clearly realize the folding operation of the flexible material in accordance with the operation of the folding module, thereby suppressing or preventing stress on the flexible material.

[0050] In addition, the present invention facilitates the coordinated operation between the fixed member, the folding member, and the rotatable support member, and by rotating the fixed member, the folding member, and the rotatable support member in coordination with each other, stress acting on the flexible material can be suppressed or prevented.

[0051] In addition, the present invention clarifies the coordinated rotation of the mounting bracket, the fixed support member, and the folding support member, and can reduce or prevent stress on the flexible material when the flexible material is folded.

[0052] In addition, the present invention can protect the flexible material by helping the flexible material bend into a drop shape when the flexible material is folded, and by covering the bent area of ​​the flexible material, it can reduce the thickness after folding is completed by ensuring that the opposing flexible materials are parallel and close to each other when the folding of the flexible material is completed. It can also minimize the bending marks in the bent area of ​​the flexible material, improve the flatness of the flexible material in the unfolded state where the flexible material is unfolded, and make the surface of the flexible material smooth.

[0053] In addition, the present invention allows the fixing member, folding member and rotor to be arranged flat on the same plane when the flexible material is unfolded, thereby allowing the unfolded flexible material to be kept flat.

[0054] In addition, the present invention can stably maintain the drop-shaped shape of the area where the flexible material is bent by completing the folding of the flexible material, thereby preventing deformation of the area where the flexible material is bent.

[0055] In addition, the present invention can stably maintain the drop-shaped shape of the area where the flexible material is bent by completing the folding of the flexible material, thereby preventing deformation of the area where the flexible material is bent.

[0056] In addition, the present invention clarifies the individual operations of the fixing member, the folding member, and the rotor, and allows the rotor to be positioned in a fixed position between the fixing member and the folding member. [Brief description of the drawings]

[0057] [Figure 1] FIG. 2 is a perspective view showing a folding mechanism for stress-free use according to one embodiment of the present invention. [Diagram 2] FIG. 2 is an exploded perspective view of FIG. [Diagram 3] FIG. 2 is a perspective view showing a base module in a stress-free folding mechanism according to one embodiment of the present invention. [Figure 4] FIG. 2 is a perspective view showing a folding module in a stress-free folding mechanism according to one embodiment of the present invention. [Diagram 5] FIG. 5 is an exploded perspective view of FIG. [Figure 6] FIG. 2 is a perspective view showing a jig module in a stress-free folding mechanism according to one embodiment of the present invention; [Figure 7]FIG. 7 is an exploded perspective view of FIG. 6. [Figure 8] 1A and 1B are perspective views showing a first folding state of a stress-free folding mechanism according to one embodiment of the present invention, in which (a) shows a state in which the flexible material is folded at 90 degrees, and (b) shows a state in which the jig module is folded at 90 degrees. [Figure 9] FIG. 9 is an enlarged cross-sectional view of part “A” in FIG. 8. [Figure 10] 1A and 1B are perspective views showing a second folding state of a folding mechanism for stress-free operation according to one embodiment of the present invention, in which (a) shows a state in which the flexible material is folded to 0 degrees, and (b) shows a state in which the jig module is folded to 0 degrees. [Figure 11] FIG. 11 is an enlarged cross-sectional view of part “B” in FIG. [Figure 12] FIG. 11 is an enlarged cross-sectional view of part "C" in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0058] The above-mentioned objects, other objects, features and advantages of the present invention will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein, and may be embodied in other forms. Rather, the embodiments described herein are provided so that the disclosed content will be thorough and complete, and so that the idea of ​​the present invention will be fully conveyed to those skilled in the art.

[0059] In this specification, when a component is referred to as being on another component, it means that it may be formed directly on the other component, or a third component may be interposed between them. Furthermore, in the drawings, the thickness of the components may be exaggerated for the purpose of effectively explaining the technical content.

[0060] In this specification, when terms such as "first" and "second" are used to describe components, these components should not be limited by these terms. These terms are merely used to distinguish a certain component from another component. The embodiments described and illustrated herein also include their complementary embodiments.

[0061] Additionally, when a first element (or component) is referred to as operating or executing on a second element (or component), it should be understood that the first element (or component) operates or executes in the environment in which the second element (or component) operates or executes, or operates or executes through direct or indirect interaction with the second element (or component).

[0062] When an element, component, device, or system is referred to as including a component consisting of a program or software, even if there is no explicit mention, the element, component, device, or system should be understood to include hardware (e.g., memory, CPU, etc.) or other programs or software (e.g., operating system or drivers necessary to drive the hardware) necessary for the program or software to execute or operate.

[0063] Furthermore, unless a specific reference is made to the implementation of a certain element (or component), it should be understood that the element (or component) can be implemented in the form of either software, hardware, or software and hardware.

[0064] In addition, the terms used in the present specification are for describing the embodiments and are not intended to limit the present invention. In the present specification, the singular form includes the plural form unless otherwise specified in the context. As used in the present specification, "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components in addition to the components mentioned.

[0065] An embodiment of the present invention has been described below, but a person having ordinary knowledge in the art may make various modifications and variations to the present invention by adding, changing, deleting or adding components without departing from the concept of the present invention described in the claims, and these modifications and variations should also be considered to be within the scope of the present invention.

[0066] 1 to 12, a folding mechanism for stress-free use according to one embodiment of the present invention may include a base module 10 and a folding module 20.

[0067] The base module 10 is coupled to a system body provided in a folding system that performs a folding test of a flexible material. One side of the flexible material is coupled to the base module 10 via a fixing member 31 of a jig module 30 described later. The base module 10 may include a plate-shaped base body 11 and a folding support bracket 12 protruding from the base body 11 so that the folding module 20 is rotatably coupled to the base body 11. A body opening is formed through the base body 11 to facilitate ventilation and heat dissipation due to the operation of the folding mechanism and to minimize the load on the base body 11. A pair of folding support brackets 12 are provided on the base body 11 so as to face each other with a space between them.

[0068] In addition, the base module 10 may further include a base coupling member 13 protruding from the base body 11 for coupling with the system body.

[0069] The folding module 20 is rotatably coupled to the base module 10 to realize the folding operation of the flexible material. The other side of the flexible material is coupled to the folding module 20 via a folding member 32 of the jig module 30, which will be described later.

[0070] The folding module 20 may include a folding body 21 arranged at a distance from the base module 10, a rotary drive member 22 having one end rotatably connected to the base module 10 and the other end rotatably connected to the folding body 21, and an interlocking member 24 slidably connected to the folding body 21 via a slide member 23.

[0071] The folding body 21 is flat, and the surface of the folding body 21 facing the interlocking member 24 is preferably provided with a reciprocating attachment portion 211 to which the slide member 23 is coupled.

[0072] The pivoting drive member 22 may include a folding bracket 221, a folding mounting module that rotatably connects one end of the folding bracket 221 to the base module 10, and a pivoting mounting module 225 that rotatably connects the other end of the folding bracket 221 to the folding body 21.

[0073] The folding brackets 221 may be arranged in pairs facing each other at a distance in correspondence with the folding support brackets 12 .

[0074] The folding mounting module may include a folding hole portion provided in one of the one end of the folding bracket 221 and the folding support bracket 12, a folding shaft portion 222 connected to the other of the one end of the folding bracket 221 and the folding support bracket 12, and a folding bearing 224 fitted into the folding hole portion and rotatably connected to the folding shaft portion 222.

[0075] The pivot mounting module 225 may include a pivot hole portion 2255 provided in either the other end of the folding bracket 221 or the folding body 21, a pivot shaft portion 2252 connected to the other end of the folding bracket 221 or the folding body 21 via the pivot bracket 2251, and a pivot bearing 2254 engaged with the pivot hole portion 2255 and rotatably connected to the pivot shaft portion 2252.

[0076] The interlocking member 24 is flat and supported by the folding main body 21 in a stacked manner.

[0077] The sliding member 23 may include an interlocking guide 241 connected to one of the folding body 21 and the interlocking member 24 so as to form a sliding movement path of the interlocking member 24 based on the folding body 21, and a plurality of interlocking sliders 243 connected to the other of the folding body 21 and the interlocking member 24 so as to be slidably connected to the interlocking guide 241.

[0078] The slide member 23 may further include an interlocking bracket 245 coupled to the other of the folding body 21 and the interlocking member 24, and to which the multiple interlocking sliders 243 are coupled. The interlocking bracket 245 may include a plurality of guide rods 246 coupled to the other of the folding body 21 and the interlocking member 24 in parallel with the interlocking guide 241, and to which the multiple interlocking sliders 243 are coupled, and a rod connecting frame 248 that connects the multiple guide rods 246 to each other.

[0079] In this way, in response to the folding action of the flexible material, the folding bracket 221 rotates based on the base module 10, the folding body 21 rotates based on the folding bracket 221, and the interlocking member 24 slides based on the folding body 21, so that the sliding action and the rotating action work in conjunction with each other, thereby making the folding action of the jig module 30 clear.

[0080] The stress-free folding mechanism according to an embodiment of the present invention may further include at least the jig module 30 among the jig module 30 and the jig detachable module 40. The jig module 30 is attached to the folding module 20 while being attached to the base module 10 so that a flexible material can be attached thereto. In addition, the jig detachable module 40 detachably attaches the jig module 30 to the base module 10. The jig detachable module 40 may include a detachable base 41 having a member fixed position part 411 where the fixing jig coupling part 312 of the jig module 30 is fixed, and a base detachable member 42 that detachably attaches the detachable base 41 to the base module 10.

[0081] The jig module 30 may include a fixed member 31 connected to the base module 10 so as to support one side of the flexible material, a folding member 32 arranged at a distance from the fixed member 31 and connected to the folding module 20 so as to support the other side of the flexible material, and a rotating support member 33 connecting adjacent ends of the fixed member 31 and the folding member 32.

[0082] The fixed member 31 has a flat plate shape. Both ends of the fixed member 31 may be provided with fixed support coupling parts 311 to which the fixed support members 332 of the pivot support member 33 are coupled. Both ends of the fixed member 31 may be provided with fixed jig coupling parts 312 to which the jig attachment / detachment module 40 is coupled, spaced apart from the fixed support coupling parts 311. A fixed position groove part 313 may be recessed at an end of the fixed member 31 facing the folding member 32. A fixed wing blocking part 314 that blocks the rotation of the rotor 34 described below when the folding of the flexible material is completed may be provided on a side of the fixed member 31 facing the folding member 32.

[0083] The folding member 32 has a flat plate shape and is disposed on the same plane as the fixed member 31 in an unfolded state where the flexible material is unfolded. Both ends of the folding member 32 may be provided with folding support coupling parts 321 to which the folding support members 333 of the pivot support member 33 are coupled. An end of the folding member 32 facing the fixed member 31 may be recessed with a folding fixed position groove part 323. A folding wing blocking part 324 that blocks the rotation of the rotor 34 when folding of the flexible material is completed may be provided on a side of the folding member 32 facing the fixed member 31.

[0084] At this time, it is preferable that the fixed support coupling part 311 and the folding support coupling part 321 are symmetrical to each other. Also, it is preferable that the fixed position groove part 313 and the folding position groove part 323 are symmetrical to each other. Also, it is preferable that the fixed wing blocking part 314 and the folding wing blocking part 324 are symmetrical to each other.

[0085] The pivotable support member 33 may include a fixed support shaft 334 forming a rotation center of the pivotable support member 33 with respect to the fixed member 31, and a folding support shaft 335 disposed apart from the fixed support shaft 334 and forming a rotation center of the folding member 32 with respect to the pivotable support member 33. In this case, it is preferable that the pivotable support member 33 rotates with respect to the fixed member 31 in conjunction with the rotation of the folding member 32 with respect to the pivotable support member 33 when the folding member 32 is folded with respect to the fixed member 31.

[0086] The pivoting support member 33 may include a mounting bracket 331 disposed between the fixed member 31 and the folding member 32, a fixed support member 332 coupled to the fixed member 31 and rotatably coupled to the mounting bracket 331 via a fixed support shaft 334, and a folding support member 333 coupled to the folding member 32 and rotatably coupled to the mounting bracket 331 via a folding support shaft 335. In this case, it is preferable that the fixed support member 332 and the folding support member 333 are coupled to each other by gears.

[0087] The mounting bracket 331 may include a mounting rod 3311 and mounting wings 3312 protruding from both ends of the mounting rod 3311. The mounting rod 3311 may be provided with a blade floating groove 3313 into which the rotor 34 described below can be inserted. A fixed support shaft 334 and a folding support shaft 335 are coupled to the mounting wing 3312.

[0088] The fixed support member 332 may include a fixed gear 3321 rotatably coupled to a mounting wing 3312 of the mounting bracket 331 via a fixed support shaft 334, and a fixed frame 3322 protruding from the fixed gear 3321. Teeth of the fixed gear 3321 for gear coupling are formed on the outer circumferential surface of the fixed gear 3321, and the fixed frame 3322 is coupled to a fixed support coupling part 311 provided on the fixed member 31.

[0089] The folding support member 333 may include a folding gear 3331 rotatably coupled to the mounting wing 3312 of the mounting bracket 331 via a folding support shaft 335, and a folding frame 3332 protruding from the folding gear 3331. Teeth of the folding gear 3331 that mesh with the teeth of the fixed gear 3321 are formed on the outer circumferential surface of the folding gear 3331, and the folding frame 3332 is coupled to a folding support coupling part 321 provided on the folding member 32.

[0090] The jig module 30 may further include a pair of rotors 34, which are spaced apart from each other to form a symmetrical pair, rotatably coupled to the pivoting support member 33 via a wing shaft 342. The rotors 34 may be divided into a fixed wing rotatably coupled to the fixed support member 332 via a first shaft of the wing shaft 342, and a folding wing rotatably coupled to the folding support member 333 via a second shaft of the wing shaft 342.

[0091] The rotor 34 includes a pair of wing bodies 341 formed long between the fixed member 31 and the folding member 32 and rotatably coupled to the fixed frame 3322 and the folding frame 3332 of the rotating support member 33 via the wing shaft 342, and may further include at least one of: an idle stopper 343 protruding from the wing body 341 so as to be engaged with the fixed frame 3322 and the folding frame 3332 of the rotating support member 33 in an idle state in which the flexible material is spread out; a wing support portion 344 provided on a side of the wing body 341 so as to be supported by the fixed wing blocking portion 314 and the folding wing blocking portion 324, respectively, when folding of the flexible material is completed; and a wing fixed position protrusion 345 protruding from an end of the rotor 34 so as to be insertable into and detachable from the fixed position groove portion 313 and the folding position groove portion 323, respectively, in response to the folding operation of the flexible material.

[0092] In summary, a fixed position groove 313 may be recessed into one of the side surface of the fixed member 31 facing the folding member 32 and the rotor 34, and a folding position groove 323 may be recessed into one of the side surface of the folding member 32 facing the fixed member 31 and the rotor 34. As a result, the other of the side surface of the fixed member 31 facing the folding member 32 and the rotor 34, and the other of the side surface of the folding member 32 facing the fixed member 31 and the rotor 34, are provided with a wing fixed position protrusion 345 that can be inserted into and removed from the fixed position groove 313 and the folding position groove 323, respectively, in response to the folding operation of the flexible material.

[0093] Thus, after the detachable base 41 is coupled to the fixed support coupling part 311, the detachable base 41 coupled to the fixed member 31 is coupled to the base module 10 using the base detachable member 42. Also, the folding member 32 is coupled to the interlocking member 24 of the folding module 20. Then, the fixed member 31, the folding member 32, and the rotor 34 are arranged in parallel on the same plane, so that the flexible material is expanded 180 degrees and coupled to the jig module 30.

[0094] When the folding module 20 is rotated in a state in which the fixed member 31 and the folding member 32 are arranged in parallel at 180 degrees as shown in Fig. 1, the folding member 32 is arranged at 90 degrees with respect to the fixed member 31 as a reference as shown in Fig. 8 and Fig. 9, and then, as shown in Fig. 10 to Fig. 12, the fixed member 31 and the folding member 32 overlap in parallel at 0 degrees. At this time, the folding member 32 rotates with respect to the fixed member 31 as a reference, so that the rotation drive member 22 rotates with respect to the base module 10, the folding member 32 rotates with respect to the rotation drive member 22, and the interlocking member 24 slides with respect to the folding member 32, so that the movement trajectory of the folding body 21 and the movement trajectory of the interlocking member 24 form a smooth curved trajectory, and stress on the flexible material can be prevented.

[0095] When folding of the flexible material is completed, as shown in FIG. 12, the fixed member 31 and the folding member 32 are parallel and facing each other, and the pair of rotors 34 extend outward toward the mounting bracket 331, so that the area where the flexible material is bent forms a drop shape.

[0096] According to the above-mentioned stress-free folding mechanism, when performing a folding durability test of a flexible material, the stress acting on the folded flexible material can be minimized or the stress acting on the folded flexible material can be prevented. In addition, the folding operation of the flexible material can be clearly realized. In addition, when the folding operation of the flexible material is realized, since the sliding method and the rotating method are performed in parallel, the moving path of the folding body 21 and the moving path of the interlocking member 24 form a smooth curved path, and the occurrence of stress on the flexible material can be prevented.

[0097] In addition, the rotational movement of the folding bracket 221 is made smooth with respect to the base module 10, and the rotational movement of the folding body 21 is made smooth with respect to the folding bracket 221, so that a curved trajectory can be stably formed.

[0098] In addition, the rotational movement of the folding bracket 221 with respect to the base module 10 can be clearly realized.

[0099] In addition, the rotational movement of the folding body 21 can be clearly realized based on the folding bracket 221.

[0100] In addition, the interlocking member 24 can smoothly slide relative to the folding main body 21. In addition, since the multiple interlocking sliders 243 are modularized, the interlocking member 24 can clearly slide relative to the folding main body 21, and the clearance caused by the slide movement can be minimized.

[0101] In addition, the attachment of the flexible material is simplified, and the folding action of the flexible material can be clearly realized.

[0102] In addition, the jig module 30 can be replaced in various ways depending on the type of flexible material or the type of test, and the jig module 30 can be easily attached and detached to the base module 10.

[0103] In addition, the jig module 30 can be positioned in a fixed position on the base module 10.

[0104] In addition, the jig module 30 can be stably connected to the base module 10 and the folding module 20, so that the folding operation of the flexible material can be clearly realized in accordance with the operation of the folding module 20, and stress on the flexible material can be suppressed or prevented.

[0105] In addition, the coordinated operation between the fixed member 31, the folding member 32, and the rotating support member 33 is smoothed, and the fixed member 31, the folding member 32, and the rotating support member 33 rotate in coordination with each other, thereby suppressing or preventing stress acting on the flexible material.

[0106] In addition, the coordinated rotation of the mounting bracket 331, the fixed support member 332, and the folding support member 333 is made clear, and stress on the flexible material when it is folded can be suppressed or prevented.

[0107] In addition, when the flexible material is folded, the flexible material is supported in a bent region to form a drop shape, and the flexible material is protected by covering the bent region. In addition, when the folding of the flexible material is completed, the flexible material facing each other is ensured to be parallel and close to each other, thereby reducing the thickness after folding is completed. In addition, the bending marks in the bent region of the flexible material are minimized, and the flatness of the flexible material is improved in the unfolded state in which the flexible material is unfolded, making the surface of the flexible material smooth.

[0108] In addition, when the flexible material is spread out, the fixing member 31, the folding member 32 and the rotor 34 are arranged flat on the same plane, so that the spread out state of the flexible material can be maintained flat.

[0109] In addition, by completing the folding of the flexible material, the drop-shaped area of ​​the flexible material can be stably maintained, and deformation of the area of ​​the flexible material can be prevented.

[0110] In addition, by completing the folding of the flexible material, the drop-shaped area of ​​the flexible material can be stably maintained, and deformation of the area of ​​the flexible material can be prevented.

[0111] In addition, the individual operations of the fixed member 31, the folding member 32, and the rotor 34 can be clearly defined, and the rotor 34 can be fixedly positioned between the fixed member 31 and the folding member 32. [Explanation of symbols]

[0112] 10 Bass Module 11 Base body 12 Folding Support Bracket 13 Base connecting member 20 Folding Module 21 Folding body 211 Reciprocating mounting part 22 Rotating drive member 221 Folding bracket 222 Folding shaft 224 Folding Bearing 225 Pivot Mounting Module 2251 Rotating bracket 2252 Rotating shaft 2254 Rotating bearing 2255 Rotating hole part 23 Slide member 24 Interlocking parts 241 Interlocking Guide 243 Interlocking Slider 245 Interlocking bracket 246 Guide Rod 248 Rod-connected frame 30 Jig Module 31 Fixing member 311 Fixed support joint 312 Fixed jig connection part 313 Fixed fixed position groove 314 Fixed wing blocking section 32 Folding member 321 Folding support joint 323 Folding position groove 324 Folding wing blocking section 33 Rotational support member 331 Mounting bracket 3311 Mounting rod 3312 Attachment wing 3313 Wing floating groove 332 Fixed support member 3321 Fixed Gear 3322 Fixed Frame 333 Folding support member 3331 Folding Gear 3332 Folding Frame 334 Fixed support shaft 335 Folding Support Axis 34 Rotor 341 Wing body 342 Wing axis 343 Idle Stopper 344 Wing support part 345 Wing fixed position protrusion 40 Jig attachment / detachment module 41 Detachable Base 411 Component positioning section 42 Base detachable member

Claims

1. The base module, a folding module rotatably coupled to the base module for realizing a folding operation of a flexible material; The folding module comprises: A folding body spaced apart from the base module; a rotation drive member having one end rotatably coupled to the base module and the other end rotatably coupled to the folding body; A stress-free folding mechanism comprising: a linking member slidably connected to the folding body via a slide member.

2. The rotation drive member is Folding bracket and a folding mounting module that rotatably connects one end of the folding bracket and the base module; The stress-free folding mechanism according to claim 1 , further comprising: a pivot mounting module for rotatably connecting the other end of the folding bracket and the folding body.

3. The base module is provided with a folding support bracket; The folding mounting module includes: a folding hole portion provided on one of one end of the folding bracket and the folding support bracket; a folding shaft portion coupled to one end of the folding bracket and the other of the folding support brackets; 3. The stress-free folding mechanism according to claim 2, further comprising: a folding bearing fitted in the folding hole portion and rotatably coupled to the folding shaft portion.

4. The pivot mounting module includes: A pivot hole portion provided in one of the other end portion of the folding bracket and the folding body; A pivot shaft portion coupled to the other end of the folding bracket and the other of the folding bodies via a pivot bracket; 3. The stress-free folding mechanism according to claim 2, further comprising: a rotation bearing fitted in the rotation hole portion and rotatably coupled to the rotation shaft portion.

5. The stress-free folding mechanism of any one of claims 1 to 4, further comprising a jig module that is coupled to the folding module while being coupled to the base module so that the flexible material can be attached.

6. The stress-free folding mechanism according to claim 5, further comprising a jig attachment / detachment module for detachably connecting the jig module to the base module.

7. The fixture module includes a fixture coupling portion; The jig attachment / detachment module includes: a detachable base provided with a member fixed position portion on which the fixing jig coupling portion is fixed; The stress-free folding mechanism according to claim 6, further comprising: a base detachable member for detachably connecting the detachable base to the base module.

8. The jig module includes: a fixing member coupled to the base module so as to support one side of the flexible material; a folding member disposed at a distance from the fixed member and coupled to the folding module such that the other side of the flexible material is supported; The stress-free folding mechanism according to claim 5, further comprising a pivoting support member connecting adjacent ends of the fixed member and the folding member.

9. The rotation support member includes: a fixed support shaft that forms a rotation center of the pivot support member relative to the fixed member; a folding support shaft disposed apart from the fixed support shaft and forming a rotation center of the folding member based on the rotating support member; The rotation support member is The stress-free folding mechanism according to claim 8, characterized in that when the folding member is folded based on the fixed member, it rotates based on the fixed member in conjunction with the rotation of the folding member based on the rotatable support member.

10. The rotation support member is a mounting bracket disposed between the fixed member and the folding member; a fixed support member coupled to the fixed member and rotatably coupled to the mounting bracket via the fixed support shaft; a folding support member coupled to the folding member and rotatably coupled to the mounting bracket via the folding support shaft; 10. The stress-free folding mechanism according to claim 9, wherein the fixed support member and the folding support member are gear-coupled to each other.

11. The jig module includes:

9. The stress-free folding mechanism according to claim 8, further comprising a pair of rotors rotatably coupled to the pivot support member, the pair being spaced apart from each other to form a symmetrical configuration.

12. The rotor includes: The stress-free folding mechanism according to claim 11, further comprising an idle stopper that is engaged with the pivot support member when the flexible material is in an idle state where the flexible material is unfolded.

13. The side surface of the fixing member facing the folding member is provided with: A fixed wing blocking portion is provided to block the rotation of the rotor when the folding of the flexible material is completed, The side of the folding member facing the fixing member has: A folding wing prevention portion is provided to prevent the rotation of the rotor when the folding of the flexible material is completed, The stress-free folding mechanism according to claim 11, wherein the fixed wing blocking portion and the folding wing blocking portion are symmetrical to each other.

14. On the side of the rotor, The stress-free folding mechanism according to claim 13, characterized in that, when the folding of the flexible material is completed, wing support parts are provided which are supported by the fixed wing blocking part and the folding wing blocking part, respectively.

15. A fixed position groove is formed in one of the side surface of the fixing member facing the folding member and the rotor blade, A folding fixed position groove is formed on one of the side surface of the folding member facing the fixed member and the rotor, A stress-free folding mechanism as described in claim 11, characterized in that a wing position protrusion that can be inserted and removed into the fixed position groove portion and the folding position groove portion, respectively, is protruded from the side of the fixed member facing the folding member and the other of the rotating wings, and from the side of the folding member facing the fixed member and the other of the rotating wings, in response to the folding operation of the flexible material.

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