Stress-free folding mechanism

Abstract

To provide a stress-free folding mechanism.SOLUTION: A stress-free folding mechanism according to the present disclosure includes a base module, and a folding module rotatably coupled to the base module to implement a folding action of a flexible material, and to which the flexible material is coupled. The folding module includes a folding main body disposed spaced apart from the base module, a rotational drive member, a first end of which is rotatably coupled to the base module and a second end of which is rotatably coupled to the folding main body, and an interlocking member slidably coupled to the folding main body via a sliding member.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a folding mechanism for stress-free. In particular, the present invention relates to a folding mechanism for stress-free that minimizes the stress acting on a flexible material to be folded or prevents the stress from acting on the flexible material to be folded when performing a folding durability test on the flexible material.

Background Art

[0002] Generally, a conventional display panel used for displays such as televisions, computer monitors, or various portable electronic devices uses a non-flexible glass substrate, so it has a flat structure and is monotonous, and its application also has limitations.

[0003] With the development of science and technology, recently, instead of a non-flexible glass substrate, a flexible material such as plastic is used to develop and produce a so-called flexible display device that can be bent. For example, a flexible display panel technology that can be folded or rolled like a scroll has been developed.

[0004] As such, with the emergence of new products in which flexible displays are folded, when performing a folding durability test on a flexible display, a technology is required to minimize the stress acting on the flexible display to be folded or prevent the stress from acting on the flexible display to be folded.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention has been made to solve the above-described problems, and its object is to minimize the stress acting on the flexible material to be folded or prevent the stress from acting on the flexible material to be folded when performing the folding durability test of the flexible material, and to provide a stress-free folding mechanism.

Means for Solving the Problems

[0007] The stress-free folding mechanism according to a preferred embodiment of the disclosed present invention includes a base module and a folding module rotatably coupled to the base module to realize the folding operation of the flexible material, to which the flexible material is coupled. The folding module includes a folding body disposed at a distance from the base module, a rotation driving member having one end rotatably coupled to the base module and the other end rotatably coupled to the folding body, and an interlocking member slidably coupled to the folding body via a slide member.

[0008] Accordingly, when performing the folding durability test on the flexible material, the stress acting on the flexible material to be folded can be minimized or the stress acting on the flexible material to be folded can be prevented. In addition, the folding operation of the flexible material can be clearly realized. Further, when realizing the folding operation of the flexible material, since the sliding method and the rotation method are performed in parallel, the movement locus of the folding main body and the movement locus of the linkage member form a smooth curved locus, and the generation of stress on the flexible material can be prevented.

[0009] Here, the rotation drive member includes a folding bracket, a folding attachment module that rotatably couples one end of the folding bracket and the base module, and a rotation attachment module that rotatably couples the other end of the folding bracket and the folding main body.

[0010] Accordingly, the rotational movement of the folding bracket is smoothed with reference to the base module, and the rotational movement of the folding main body is smoothed with reference to the folding bracket, so that a curved locus can be stably formed.

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

[0012] Accordingly, the rotational movement of the folding bracket can be clearly realized with reference to the base module.

[0013] Here, the rotation mounting module includes a rotation hole portion provided on either one of the other end portion of the folding bracket and the folding body, a rotation shaft portion coupled to the other of the other end portion of the folding bracket and the folding body via a rotation bracket, and a rotation bearing fitted into the rotation hole portion and rotatably coupled to the rotation shaft portion.

[0014] Thereby, the rotational movement of the folding body with respect to the folding bracket can be clearly realized.

[0015] At this time, the slide member includes an interlocking guide coupled to either one of the folding body and the interlocking member so as to form a slide movement path of the interlocking member with respect to the folding body, and a plurality of interlocking sliders coupled to the other of the folding body and the interlocking member so as to be slidably movable on the interlocking guide.

[0016] Thereby, the slide movement of the interlocking member with respect to the folding body can be made smooth.

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

[0018] Thereby, since a plurality of interlocking sliders are modularized, the slide movement of the interlocking member with respect to the folding body can be made clear, and the play due to the slide movement can be minimized.

[0019] The stress-free folding mechanism according to the 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.

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

[0021] The folding mechanism for stress-free according to a preferred embodiment of the disclosed invention further includes a jig detaching / attaching module that detachably couples the jig module to the base module.

[0022] This allows the jig module to be diversely replaced according to the type of the flexible material or the type of the test. Also, the detachment and attachment of the jig module in the base module can be simplified.

[0023] Here, the jig module is provided with a fixed jig coupling portion, and the jig detaching / attaching module includes a detaching / attaching base provided with a member positioning portion where the fixed jig coupling portion is positioned, and a base detaching / attaching member that detachably couples the detaching / attaching base to the base module.

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

[0025] Here, the jig module includes a fixing member that is coupled to the base module so that one side of the flexible material is supported, a folding member that is disposed at a distance from the fixing member and is coupled to the folding module so that the other side of the flexible material is supported, and a rotation support member that connects the end of the fixing member and the end of the folding member that are adjacent to each other.

[0026] This enables the jig module to be stably coupled to the base module and the folding module, clearly realizes the folding operation of the flexible material according to the operation of the folding module, and can suppress or prevent the stress acting on the flexible material.

[0027] Here, the rotation support member includes a fixed support shaft that forms the rotation center of the rotation support member with respect to the fixed member, and a folding support shaft that is disposed at a distance from the fixed support shaft and forms the rotation center of the folding member with respect to the rotation support member. When the folding member is folded with respect to the fixed member, the rotation support member rotates with respect to the fixed member in association with the rotation of the folding member with respect to the rotation support member.

[0028] Thereby, the interlocking operation of the fixed member, the folding member, and the rotation support member is smoothed, and by the fixed member, the folding member, and the rotation support member rotating in mutual interlock, the stress acting on the flexible material can be suppressed or prevented.

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

[0030] Thereby, the interlocking rotation of the mounting bracket, the fixed support member, and the folding support member is clarified, and when the flexible material is folded, the stress acting on the flexible material can be suppressed or prevented.

[0031] Here, the jig module further includes a pair of rotating wings that are symmetrically arranged at a distance from each other and are rotatably coupled to the rotation support member.

[0032] This enables, when the flexible material is being folded, the region where the flexible material is bent to form a droplet shape, covering the region where the flexible material is bent to protect the flexible material. Further, when the folding of the flexible material is completed, it ensures that the opposing flexible materials are parallel and close to each other, reducing the thickness after folding is completed. Also, it minimizes the bending marks in the region where the flexible material is bent, improves the flatness of the flexible material in the unfolded state where the flexible material is spread out, and can smooth the surface of the flexible material.

[0033] Here, the rotary blade is provided with an idle stopper that is locked to the pivot support member in the idle state where the flexible material is spread out.

[0034] This enables the fixing member, the folding member, and the rotary blade to be arranged flat in the same plane in the state where the flexible material is spread out, and can maintain the spread-out state of the flexible material flat.

[0035] Here, on the side surface of the fixing member facing the folding member, when the folding of the flexible material is completed, there is provided a fixed blade stopper that blocks the rotation of the rotary blade, and on the side surface of the folding member facing the fixing member, when the folding of the flexible material is completed, there is provided a folding blade stopper that blocks the rotation of the rotary blade, and the fixed blade stopper and the folding blade stopper are symmetric to each other.

[0036] This enables, when the folding of the flexible material is completed, the droplet shape in the region where the flexible material is bent to be stably maintained, preventing deformation in the region where the flexible material is bent.

[0037] Here, on the side surface of the rotary blade, when the folding of the flexible material is completed, wing support portions respectively supported by the fixed blade blocking portion and the folding blade blocking portion are provided.

[0038] Thereby, when the folding of the flexible material is completed, the droplet shape in the region where the flexible material is bent can be stably maintained, and the deformation of the region where the flexible material is bent can be prevented.

[0039] Here, a fixed position groove portion is recessed in either one of the side surface of the fixed member facing the folding member and the rotary blade, and a folding fixed position groove is recessed in either one of the side surface of the folding member facing the fixed member and the rotary blade. Wing fixed position protrusions that can be inserted into and removed from the fixed position groove portion and the folding fixed position groove respectively according to the folding operation of the flexible material are protruded on the other of the side surface of the fixed member facing the folding member and the rotary blade and the other of the side surface of the folding member facing the fixed member and the rotary blade.

[0040] Thereby, the individual operations of the fixed member, the folding member, and the rotary blade are clarified, and the rotary blade can be positioned at a fixed position between the fixed member and the folding member.

Effects of the Invention

[0041] According to the folding mechanism for stress-free according to a preferred embodiment of the present invention, when performing a folding durability test on a flexible material, the stress acting on the flexible material to be folded can be minimized, or the stress acting on the flexible material to be folded can be prevented. In addition, the folding operation of the flexible material can be clearly realized. Further, when realizing the folding operation of the flexible material, since the sliding method and the rotation method are performed in parallel, the movement locus of the folding main body and the movement locus of the linkage member form a smooth curve locus, and the generation of stress on the flexible material can be prevented.

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

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

[0044] In addition, the present invention can clearly realize the rotational movement of the folding main body with reference to the folding bracket.

[0045] In addition, the present invention can smooth the sliding movement of the linkage member with reference to the folding main body. Further, since a plurality of linkage sliders are modularized, the sliding movement of the linkage member with reference to the folding main body can be clarified, and the play due to the sliding movement can be minimized.

[0046] In addition, the present invention simplifies the attachment of the flexible material and can clearly realize the folding operation of the flexible material.

[0047] In addition, according to the type of flexible material or the type of test, the jig module can be replaced in various ways in the present invention. Also, the attachment and detachment of the jig module in the base module can be made simple and convenient.

[0048] In addition, in the present invention, the jig module can be positioned at a fixed position in the base module.

[0049] In addition, in the present invention, the jig module can be stably coupled to the base module and the folding module, and the folding operation of the flexible material can be clearly realized according to the operation of the folding module, and the stress acting on the flexible material can be suppressed or prevented.

[0050] In addition, in the present invention, the interlocking operation of the fixing member, the folding member, and the rotation support member is made smooth, and the stress acting on the flexible material can be suppressed or prevented by the mutual interlocking rotation of the fixing member, the folding member, and the rotation support member.

[0051] In addition, in the present invention, the interlocking rotation of the mounting bracket, the fixed support member, and the folding support member is made clear, and when the flexible material is folded, the stress acting on the flexible material can be suppressed or prevented.

[0052] In addition, when the flexible material is folded, the present invention can assist the area where the flexible material is bent to form a drop shape, cover the area where the flexible material is bent to protect the flexible material. Also, when the folding of the flexible material is completed, it can ensure that the flexible materials facing each other are in a state of being parallel and close to each other, and the thickness after folding can be reduced. Also, the bending marks can be minimized in the area where the flexible material is bent, the flatness of the flexible material can be improved in the unfolded state where the flexible material is unfolded, and the surface of the flexible material can be made smooth.

[0053] Further, in the present invention, the flexible material is arranged flat in the same plane as the fixing member, the folding member, and the rotating blade in the unfolded state, and the unfolded state of the flexible material can be maintained flat.

[0054] Further, in the present invention, when the folding of the flexible material is completed, the droplet shape in the region where the flexible material is bent can be stably maintained, and the deformation of the region where the flexible material is bent can be prevented.

[0055] Further, in the present invention, when the folding of the flexible material is completed, the droplet shape in the region where the flexible material is bent can be stably maintained, and the deformation of the region where the flexible material is bent can be prevented.

[0056] Further, in the present invention, the individual operations of the fixing member, the folding member, and the rotating blade are clarified, and the rotating blade can be positioned at a fixed position between the fixing member and the folding member.

Brief Description of the Drawings

[0057]

Figure 1

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Figure 12

Embodiments for Carrying Out the Invention

[0058] The above-described objects, other objects, features, and advantages of the present invention will be easily understood through the following preferred embodiments related to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and can be embodied in other forms. Rather, the embodiments introduced here are provided so that the disclosed content is thorough and complete and that the idea of the present invention is sufficiently 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 directly formed on the other component or a third component may be interposed therebetween. Further, in the drawings, the thickness of the components may be exaggerated for an effective explanation of the technical content.

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

[0061] Also, when it is mentioned that a first element (or component) operates or executes on a second element (or component), the first element (or component) should be understood to operate or execute in the environment where the second element (or component) operates or executes, or the first element (or component) operates or executes through direct or indirect interaction with the second element (or component).

[0062] When an element, component, device, or system is mentioned as including a component consisting of a program or software, even without an explicit mention, that element, component, device, or system should be understood to include the hardware (e.g., memory, CPU, etc.) or other programs or software (e.g., operating mechanisms or drivers necessary to drive the hardware) necessary for that program or software to execute or operate.

[0063] Also, unless otherwise specified in the realization of an element (or component), that element (or component) should be understood to be realizable in any form of software, hardware, or a combination of software and hardware.

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

[0065] Hereinafter, although one embodiment of the present invention has been described, those having ordinary knowledge in the art can make various modifications and variations to the present invention by adding, changing, deleting, or adding components without departing from the idea of the present invention described in the claims, and these should also be included within the scope of the rights of the present invention.

[0066] Referring to FIGS. 1 to 12, a folding mechanism for stress-free according to an embodiment of the present invention can include a base module 10 and a folding module 20.

[0067] The base module 10 is coupled to the system main body provided in a folding system that performs a folding test on 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 can include a plate-shaped base main body 11 and a folding support bracket 12 protruding from the base main body 11 so that the folding module 20 is rotatably coupled. A main body opening is formed through the base main body 11 to facilitate ventilation and heat dissipation due to the operation of the folding mechanism and minimize the load on the base main body 11. The folding support brackets 12 are provided on the base main body 11 so that a pair of them face each other in a separated state.

[0068] In addition to this, the base module 10 can further include a base coupling member 13 protruding from the base main body 11 for coupling to the system main 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 a jig module 30 described later.

[0070] The folding module 20 can include a folding body 21 disposed at a distance from the base module 10, a rotation driving member 22 having one end rotatably coupled to the base module 10 and the other end rotatably coupled to the folding body 21, and an interlocking member 24 slidably coupled to the folding body 21 via a slide member 23.

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

[0072] The rotation driving member 22 can include a folding bracket 221, a folding attachment module that rotatably couples one end of the folding bracket 221 and the base module 10, and a rotation attachment module 225 that rotatably couples the other end of the folding bracket 221 and the folding body 21.

[0073] A pair of folding brackets 221 may be arranged to face each other with a distance therebetween corresponding to the folding support brackets 12.

[0074] The folding attachment module can include a folding hole portion provided on either one of one end of the folding bracket 221 and the folding support bracket 12, a folding shaft portion 222 coupled to the other of 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 coupled to the folding shaft portion 222.

[0075] The pivoting attachment module 225 can include a pivoting hole portion 2255 provided on either the other end of the folding bracket 221 or the folding body 21, a pivoting shaft portion 2252 coupled to the other of the other end of the folding bracket 221 and the folding body 21 via a pivoting bracket 2251, and a pivoting bearing 2254 fitted into the pivoting hole portion 2255 and rotatably coupled to the pivoting shaft portion 2252.

[0076] The interlocking member 24 is flat plate-shaped and is stacked and supported on the folding body 21.

[0077] The slide member 23 can include an interlocking guide 241 coupled to either the folding body 21 or the interlocking member 24 so as to form a slide movement path of the interlocking member 24 with respect to the folding body 21, and a plurality of interlocking sliders 243 coupled to the other of the folding body 21 and the interlocking member 24 so as to be slidably movable on the interlocking guide 241.

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

[0079] Then, in response to the folding operation of the flexible material, the folding bracket 221 rotates with respect to the base module 10, the folding body 21 rotates with respect to the folding bracket 221, and the interlocking member 24 slides with respect to the folding body 21. Therefore, the sliding motion and the rotational motion are interrelated and operate, and the folding operation of the jig module 30 can be clarified.

[0080] The folding mechanism for stress-free 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 attachment / detachment module 40. The jig module 30 is coupled to the folding module 20 in a state of being coupled to the base module 10 such that a flexible material can be attached. Further, the jig attachment / detachment module 40 detachably couples the jig module 30 to the base module 10. The jig attachment / detachment module 40 may include a detachment base 41 provided with a member positioning portion 411 where a fixed jig coupling portion 312 of the jig module 30 is positioned, and a base detachment member 42 that detachably couples the detachment base 41 to the base module 10.

[0081] The jig module 30 may include a fixing member 31 coupled to the base module 10 so that one side of the flexible material is supported, a folding member 32 disposed apart from the fixing member 31 and coupled to the folding module 20 so that the other side of the flexible material is supported, and a rotation support member 33 that connects the ends of the fixing member 31 and the folding member 32 adjacent to each other.

[0082] The fixing member 31 is flat. Fixing support coupling portions 311 to which fixing support members 332 of the rotation support member 33 are coupled may be provided at both ends of the fixing member 31. Fixing jig coupling portions 312 to which the jig attachment / detachment module 40 is coupled may be provided at both ends of the fixing member 31, spaced apart from the fixing support coupling portions 311. A fixed positioning groove portion 313 may be recessed at an end of the fixing member 31 facing the folding member 32. A fixed wing blocking portion 314 that blocks the rotation of a rotating wing 34, which will be described later, may be provided on a side surface of the fixing member 31 facing the folding member 32 when the folding of the flexible material is completed.

[0083] The folding member 32 is in a flat plate shape and is arranged at a distance from the fixed member 31 in the same plane in the unfolded state where the flexible material is unfolded. Folding support coupling portions 321 to which the folding support members 333 of the rotation support member 33 are coupled may be provided at both ends of the folding member 32. A folding fixed position groove portion 323 may be recessed at an end of the folding member 32 facing the fixed member 31. A folding blade blocking portion 324 that blocks the rotation of the rotary blade 34 may be provided on a side surface of the folding member 32 facing the fixed member 31 when the folding of the flexible material is completed.

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

[0085] The rotation support member 33 may include a fixed support shaft 334 that forms the rotation center of the rotation support member 33 with respect to the fixed member 31, and a folding support shaft 335 that is arranged at a distance from the fixed support shaft 334 and forms the rotation center of the folding member 32 with respect to the rotation support member 33. Then, when the folding member 32 is folded with respect to the fixed member 31, the rotation support member 33 preferably rotates with respect to the fixed member 31 in association with the rotation of the folding member 32 with respect to the rotation support member 33.

[0086] The swing support member 33 can 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. At this time, the fixed support member 332 and the folding support member 333 are preferably gear-coupled to each other.

[0087] The mounting bracket 331 can 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 wing play groove 3313 into which a rotating wing 34 to be described later can be inserted. The fixed support shaft 334 and the folding support shaft 335 are coupled to the mounting wings 3312.

[0088] The fixed support member 332 can include a fixed gear 3321 rotatably coupled to the mounting wing 3312 of the mounting bracket 331 via the 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 peripheral surface of the fixed gear 3321, and the fixed frame 3322 is coupled to a fixed support coupling portion 311 provided on the fixed member 31.

[0089] The folding support member 333 can include a folding gear 3331 rotatably coupled to the mounting wing 3312 of the mounting bracket 331 via the 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 peripheral surface of the folding gear 3331, and the folding frame 3332 is coupled to a folding support coupling portion 321 provided on the folding member 32.

[0090] The jig module 30 can further include a rotating blade 34 that is arranged in a pair with a distance therebetween to be symmetric and is rotatably coupled to the rotating support member 33 via a blade shaft 342. The rotating blade 34 can be divided into a fixed blade that is rotatably coupled to the fixed support member 332 via the first shaft of the blade shafts 342 and a folding blade that is rotatably coupled to the folding support member 333 via the second shaft of the blade shafts 342.

[0091] The rotating blade 34 includes a pair of blade bodies 341 that are formed long between the fixed member 31 and the folding member 32 and are rotatably coupled to the fixed frame 3322 and the folding frame 3332 of the rotating support member 33 via the blade shaft 342, an idle stopper 343 that protrudes from the blade body 341 so as to be locked to the fixed frame 3322 and the folding frame 3332 of the rotating support member 33 in an idle state where the flexible material is expanded, a blade support portion 344 provided on the side surface of the blade body 341 so as to be supported by the fixed blade stopper portion 314 and the folding blade stopper portion 324 respectively when the folding of the flexible material is completed, and at least one of blade positioning protrusions 345 that protrude from the end of the rotating blade 34 so as to be insertable into and removable from the fixed positioning groove portion 313 and the folding positioning groove portion 323 respectively according to the folding operation of the flexible material.

[0092] In summary, a fixed positioning groove portion 313 is recessed in either one of the side surface of the fixed member 31 facing the folding member 32 and the rotating blade 34, and a folding positioning groove portion 323 can be recessed in either one of the side surface of the folding member 32 facing the fixed member 31 and the rotating blade 34. Thereby, blade positioning protrusions 345 that are insertable into and removable from the fixed positioning groove portion 313 and the folding positioning groove portion 323 respectively according to the folding operation of the flexible material protrude from the other of the side surface of the fixed member 31 facing the folding member 32 and the rotating blade 34 and the other of the side surface of the folding member 32 facing the fixed member 31 and the rotating blade 34.

[0093] Thereby, after the detachable base 41 is coupled to the fixed support coupling portion 311, the detachable base 41 to which the fixing member 31 is coupled is coupled to the base module 10 using the base detaching member 42. Further, the folding member 32 is coupled to the interlocking member 24 of the folding module 20. Then, since the fixing member 31, the folding member 32, and the rotary blades 34 are arranged in parallel on the same plane, the flexible material is expanded 180 degrees and coupled to the jig module 30.

[0094] As shown in FIG. 1, when the folding module 20 is rotated in a 180-degree state where the fixing member 31 and the folding member 32 are arranged in parallel, as shown in FIGS. 8 and 9, the folding member 32 is arranged at 90 degrees with respect to the fixing member 31. Subsequently, as shown in FIGS. 10 to 12, a 0-degree state is shown where the fixing member 31 and the folding member 32 overlap in parallel. At this time, as the folding member 32 rotates with respect to the fixing member 31, the rotation driving member 22 rotates with respect to the base module 10, the folding member 32 rotates with respect to the rotation driving member 22, and the interlocking member 24 slides with respect to the folding member 32. Therefore, the movement locus of the folding main body 21 and the movement locus of the interlocking member 24 form a smooth curved locus, and stress acting on the flexible material can be prevented.

[0095] When the folding of the flexible material is completed, as shown in FIG. 12, the fixing member 31 and the folding member 32 are parallel while facing each other, and the pair of rotary blades 34 spread outward toward the mounting bracket 331. Therefore, the region where the flexible material is bent shows a drop shape.

[0096] According to the folding mechanism for stress-free described above, when performing a folding durability test on a flexible material, the stress acting on the flexible material to be folded can be minimized or the stress acting on the flexible material to be folded can be prevented. In addition, the folding operation of the flexible material can be clearly realized. Further, when realizing the folding operation of the flexible material, since the sliding method and the rotating method are carried out in parallel, the movement locus of the folding body 21 and the movement locus of the linking member 24 form a smooth curved locus, and the generation of stress on the flexible material can be prevented.

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

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

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

[0100] In addition, the sliding movement of the linking member 24 can be smoothed with respect to the folding body 21. Further, since a plurality of linking sliders 243 are modularized, the sliding movement of the linking member 24 with respect to the folding body 21 can be clarified, and the play due to the sliding movement can be minimized.

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

[0102] In addition, the jig module 30 can be replaced in various ways according to the type of flexible material or the type of test. Also, the attachment and detachment of the jig module 30 in the base module 10 can be made convenient.

[0103] Also, the jig module 30 can be positioned at a fixed position in the base module 10.

[0104] Also, the jig module 30 can be stably coupled to the base module 10 and the folding module 20, and the folding operation of the flexible material can be clearly realized according to the operation of the folding module 20, and the stress acting on the flexible material can be suppressed or prevented.

[0105] Also, the interlocking operation of the fixing member 31, the folding member 32, and the rotation support member 33 is smoothed, and the fixing member 31, the folding member 32, and the rotation support member 33 rotate in mutual interlock, so that the stress acting on the flexible material can be suppressed or prevented.

[0106] Also, the interlocking rotation of the mounting bracket 331, the fixed support member 332, and the folding support member 333 is clarified, and when the flexible material is folded, the stress acting on the flexible material can be suppressed or prevented.

[0107] Also, when the flexible material is folded, it can assist the area where the flexible material is bent to form a drop shape, cover the area where the flexible material is bent to protect the flexible material. Also, when the folding of the flexible material is completed, it can ensure that the flexible materials facing each other are in a state of being parallel and close to each other, and the thickness after folding can be reduced. Also, the bending marks can be minimized in the area where the flexible material is bent, the flatness of the flexible material can be improved in the unfolded state where the flexible material is unfolded, and the surface of the flexible material can be made smooth.

[0108] Also, in a state where the flexible material is spread out, the fixing member 31, the folding member 32, and the rotating blade 34 are arranged flat in the same plane, and the spread state of the flexible material can be maintained flat.

[0109] Also, when the folding of the flexible material is completed, the droplet shape in the region where the flexible material is bent can be stably maintained, and the deformation of the region where the flexible material is bent can be prevented.

[0110] Also, when the folding of the flexible material is completed, the droplet shape in the region where the flexible material is bent can be stably maintained, and the deformation of the region where the flexible material is bent can be prevented.

[0111] Also, the individual operations of the fixing member 31, the folding member 32, and the rotating blade 34 are clarified, and the rotating blade 34 can be positioned at a fixed position between the fixing member 31 and the folding member 32.

Explanation of Reference Numerals

[0112] 10 Base Module 11 Base Body 12 Folding Support Bracket 13 Base Coupling Member 20 Folding Module 21 Folding Body 211 Reciprocating Mounting Port 22 Rotation Driving Member 221 Folding Bracket 222 Folding Shaft Port 224 Folding Bearing 225 Rotation Mounting Module 2251 Rotation Bracket 2252 Rotation Shaft Port 2254 Rotation Bearing 2255 Rotation Hole Port 23 Slide Member 24 Linkage Member 241 Linkage Guide 243 Linkage Slider 245 Linkage Bracket 246 Guide Rod 248 Rod Connection Frame 30 Fixture Module 31 Fixing Member 311 Fixed Support Joint 312 Fixed Fixture Joint 313 Fixed Positioning Groove 314 Fixed Wing Block 32 Folding Member 321 Folding Support Joint 323 Folding Positioning Groove 324 Folding Wing Block 33 Rotation Support Member 331 Mounting Bracket 3311 Mounting Rod 3312 Mounting Wing 3313 Wing Free Movement 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 Shaft 34 Rotating Wing 341 Wing Body 342 Wing Shaft 343 Idle Stopper 344 Wing Support 345 Wing Positioning Protrusion 40 Fixture Detachment Module 41 Detachment Base 411 Member Positioning Part 42 Base Detachment Member

Claims

1. The base module, a folding module rotatably coupled to the base module to realize a folding operation of the flexible material, the folding module being coupled to the 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, 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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