Stress-free folding mechanism

Abstract

The present invention provides a stress-free folding mechanism comprising: a base module; and a folding module which is rotatably coupled to the base module to implement a folding motion of a flexible material and to which the flexible material is coupled, wherein the folding module includes: a folding body spaced apart from the base module; a rotational driving member having one end rotatably coupled to the base module and the other end rotatably coupled to the folding body; and a linkage member slidably coupled to the folding body via a sliding member.

Description

Folding mechanism for stress-free use

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

[0002] In general, conventional display panels used for displays such as televisions, computer monitors, or various portable electronic devices have a flat structure and are monotonous, and their applications are limited because they use inflexible glass substrates.

[0003] Thanks to advances in science and technology, bendable display devices are being developed and produced using flexible materials like plastic instead of inflexible glass substrates. For example, technology for flexible display panels that can be folded or rolled up is also being developed.

[0004] As foldable flexible displays are released, technologies are needed to minimize the stress applied to the foldable flexible display or prevent stress from being applied to the foldable flexible display when testing the folding durability of the flexible display.

[0005]

[0006] Prior art literature

[0007] Republic of Korea Patent Publication No. 10-2255147 (Published on May 24, 2021, Title of the Invention: 360-degree bidirectional folding durability evaluation device for flexible materials)

[0008]

[0009] The present invention has been derived to solve the above problems, and its purpose is to provide a stress-free folding mechanism that minimizes stress applied to a folded flexible material or prevents stress from being applied to a folded flexible material when conducting a folding durability test of a flexible material.

[0010] A folding mechanism for stress-free operation according to a preferred embodiment of the present invention includes a base module; and a folding module rotatably coupled to the base module to implement a folding operation of a flexible material and to which the flexible material is coupled; wherein the folding module includes a folding body spaced apart from the base module; a rotational driving member having one end rotatably coupled to the base module and the other end rotatably coupled to the folding body; and a linkage member slidably coupled to the folding body via a sliding member.

[0011] Accordingly, when conducting a folding durability test of a flexible material, the stress applied to the folded flexible material can be minimized or the stress applied to the folded flexible material can be prevented. In addition, the folding motion of the flexible material can be clearly implemented. In addition, when implementing the folding motion of the flexible material, since the sliding method and the rotating method are used in parallel, the movement trajectory of the folding body and the movement trajectory of the linkage member form a smooth curved trajectory, and the stress generated in the flexible material can be prevented.

[0012] Here, the rotational driving member includes a folding bracket; a folding mounting module that rotatably connects one end of the folding bracket and the base module; and a rotational mounting module that rotatably connects the other end of the folding bracket and the folding main body.

[0013] In this way, the rotational movement of the folding bracket with respect to the base module is made smooth, and the rotational movement of the folding body with respect to the folding bracket is made smooth, so that a curved trajectory can be formed stably.

[0014] Here, the base module is provided with a folding support bracket; and the folding mounting module includes a folding hole portion provided in one end of the folding bracket and one of the folding support brackets; a folding axis portion coupled to 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 axis portion.

[0015] In this way, the rotational movement of the folding bracket can be clearly implemented based on the base module.

[0016] Here, the rotation mounting module includes a rotation hole provided in one of the other end of the folding bracket and the folding body; a rotation shaft coupled to the other end of the folding bracket and the other of the folding body via the rotation bracket; and a rotation bearing fitted into the rotation hole and rotatably coupled to the rotation shaft.

[0017] In this way, the rotational movement of the folding body can be clearly implemented based on the folding bracket.

[0018] At this time, the sliding member includes a linkage guide coupled to one of the folding body and the linkage member to form a sliding movement path of the linkage member based on the folding body; and a plurality of linkage sliders coupled to the other of the folding body and the linkage member to be slidably coupled to the linkage guide.

[0019] This allows smooth sliding movement of the linking member relative to the folding body.

[0020] In addition, the sliding member further includes a linkage bracket that is connected to the folding body and another one of the linkage members, and to which a plurality of linkage sliders are connected.

[0021] By modularizing multiple linkage sliders, the sliding movement of the linkage member relative to the folding body can be clearly made, and the play resulting from the sliding movement can be minimized.

[0022] A folding mechanism for stress-free operation according to a preferred embodiment of the disclosed invention further includes a jig module coupled to the folding module while the flexible material is coupled to the base module.

[0023] This makes it possible to easily mount the flexible material and clearly implement the folding motion of the flexible material.

[0024] The folding mechanism for stress-free according to a preferred embodiment of the disclosed invention further includes a jig detachable module for detachably connecting the jig module to the base module.

[0025] This allows for a variety of jig modules to be replaced depending on the type of flexible material or test being performed. Furthermore, jig modules can be easily attached and detached from the base module.

[0026] Here, the jig module is provided with a fixed jig coupling portion; the jig detachment module includes a detachment base having a member positioning portion for fixing the fixed jig coupling portion; and a base detachment member for detachably coupling the detachment base to the base module.

[0027] This allows the jig module to be positioned correctly on the base module.

[0028] Here, the jig module includes a fixing member coupled to the base module so that one side of the flexible material is supported; a folding member spaced apart from the fixing member and coupled to the folding module so that the other side of the flexible material is supported; and a rotational support member connecting an end of the fixing member and an end of the folding member that are adjacent to each other.

[0029] In this way, the jig module can be stably connected to the base module and the folding module, the folding motion of the flexible material can be clearly implemented according to the motion of the folding module, and stress can be suppressed or prevented from being applied to the flexible material.

[0030] Here, the pivot support member includes a fixed support axis forming a center of rotation of the pivot support member with respect to the fixed member; and a folding support axis spaced apart from the fixed support axis and forming a center of rotation of the folding member with respect to the pivot support member; and the pivot support member rotates with respect to the fixed member in conjunction with the rotation of the folding member with respect to the pivot support member when the folding member is folded with respect to the fixed member.

[0031] In this way, the joint operation of the fixed member, the folding member, and the rotational support member can be smoothly performed, and the stress applied to the flexible material as the fixed member, the folding member, and the rotational support member are mutually connected and rotated can be suppressed or prevented.

[0032] Here, the rotational support member includes a mounting bracket arranged 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 axis; and a folding support member coupled to the folding member and rotatably coupled to the mounting bracket via the folding support axis; wherein the fixed support member and the folding support member are gear-coupled to each other.

[0033] In this way, the linked rotation of the mounting bracket, the fixed support member, and the folding support member can be clearly established, and stress applied to the flexible material when the flexible material is folded can be suppressed or prevented.

[0034] Here, the jig module further includes a pair of rotating blades spaced apart from each other to form a symmetry, and rotatably coupled to the rotating support member.

[0035] Accordingly, when the flexible material is folded, the bending area of ​​the flexible material can be supported to form a water droplet shape, and the bending area of ​​the flexible material can be covered to protect the flexible material. In addition, when the folding of the flexible material is completed, the facing flexible materials can be ensured to be parallel and close to each other, and the thickness after folding can be reduced. In addition, the bending traces in the bending area of ​​the flexible material can be minimized, the flatness of the flexible material can be improved in the unfolded state when the flexible material is spread out, and the surface of the flexible material can be made smooth.

[0036] Here, the above-mentioned rotary blade is provided with an idle stopper that is supported by being caught on the rotation support member when the above-mentioned flexible material is in an unfolded idle state.

[0037] In this way, the fixed member, the folding member, and the rotating blade can be arranged flat on the same plane when the flexible material is unfolded, and the unfolded state of the flexible material can be maintained flat.

[0038] Here, a fixed wing stopper is provided on the side of the fixed member facing the folding member to prevent rotation of the rotary blade when folding of the flexible material is completed, and a folding wing stopper is provided on the side of the folding member facing the fixed member to prevent rotation of the rotary blade when folding of the flexible material is completed, and the fixed wing stopper and the folding wing stopper are symmetrical to each other.

[0039] In this way, as the folding of the flexible material is completed, the shape of the water droplet in 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.

[0040] Here, on the side of the rotary blade, a wing support part is provided which is supported by the fixed wing support part and the folding wing support part respectively as the folding of the flexible material is completed.

[0041] In this way, as the folding of the flexible material is completed, the shape of the water droplet in 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.

[0042] Here, a fixed positioning groove is formed in a recessed manner in one of the side surfaces of the fixed member facing the folding member and the rotary blade, a folding positioning groove is formed in a recessed manner in one of the side surfaces of the folding member facing the fixed member and the rotary blade, and a wing positioning protrusion is formed in a protruding manner in the other of the side surfaces of the fixed member facing the folding member and the other of the side surfaces of the folding member facing the fixed member and the rotary blade, respectively, and is removably inserted into the fixed positioning groove and the folding positioning groove according to the folding operation of the flexible material.

[0043] This makes it possible to clearly define the individual movements of the fixed member, the folding member, and the rotary blade, and to position the rotary blade between the fixed member and the folding member.

[0044] According to a stress-free folding mechanism according to a preferred embodiment of the present invention, when performing a folding durability test of a flexible material, the stress applied to the folded flexible material can be minimized or the stress applied to the folded flexible material can be prevented. In addition, the folding motion of the flexible material can be clearly implemented. In addition, when implementing the folding motion of the flexible material, since the sliding method and the rotating method are performed in parallel, the movement trajectory of the folding body and the movement trajectory of the linkage member form a smooth curved trajectory, and stress can be prevented from being generated in the flexible material.

[0045] In addition, the present invention can form a curved trajectory stably by smoothly performing rotational movement of the folding bracket with respect to the base module and smoothly performing rotational movement of the folding body with respect to the folding bracket.

[0046] In addition, the present invention can clearly implement the rotational movement of the folding bracket based on the base module.

[0047] In addition, the present invention can clearly implement the rotational movement of the folding body based on the folding bracket.

[0048] Furthermore, the present invention facilitates smooth sliding movement of the linking member relative to the folding body. Furthermore, by modularizing multiple linking sliders, the sliding movement of the linking member relative to the folding body can be clearly achieved, and any play resulting from the sliding movement can be minimized.

[0049] In addition, the present invention can simplify the mounting of a flexible material and clearly implement the folding motion of the flexible material.

[0050] Furthermore, the present invention allows for a variety of jig modules to be replaced depending on the type of flexible material or test being performed. Furthermore, the jig module can be easily attached and detached from the base module.

[0051] Additionally, the present invention can position a jig module in a base module.

[0052] In addition, the present invention stably connects a jig module to a base module and a folding module, clearly implements a folding operation of a flexible material according to the operation of the folding module, and suppresses or prevents stress from being applied to the flexible material.

[0053] In addition, the present invention can facilitate the joint operation of a fixed member, a folding member, and a rotational support member, and suppress or prevent stress applied to a flexible material as the fixed member, the folding member, and the rotational support member are mutually connected and rotated.

[0054] In addition, the present invention can clearly establish the linked rotation of the mounting bracket, the fixed support member, and the folding support member, and can suppress or prevent stress from being applied to the flexible material when the flexible material is folded.

[0055] In addition, the present invention can support the flexible material to form a water droplet shape in the bending area when the flexible material is folded, and can protect the flexible material by covering the bending area. In addition, when the folding of the flexible material is completed, the facing flexible materials are ensured to be parallel and close to each other, and the thickness after the folding is completed can be reduced. In addition, the bending traces in the bending area of ​​the flexible material can be minimized, the flatness of the flexible material can be improved in the unfolded state when the flexible material is spread out, and the surface of the flexible material can be made smooth.

[0056] In addition, the present invention can ensure that the fixed member, the folding member, and the rotating blade are arranged flat on the same plane when the flexible material is unfolded, and can maintain the unfolded state of the flexible material flat.

[0057] In addition, the present invention can stably maintain the shape of a water droplet in an area where the flexible material is bent as the folding of the flexible material is completed, and prevent deformation of the area where the flexible material is bent.

[0058] In addition, the present invention can stably maintain the shape of a water droplet in an area where the flexible material is bent as the folding of the flexible material is completed, and prevent deformation of the area where the flexible material is bent.

[0059] In addition, the present invention clearly enables the individual operations of the fixed member, the folding member, and the rotary blade, and can position the rotary blade between the fixed member and the folding member.

[0060] FIG. 1 is a perspective view illustrating a folding mechanism for stress-free operation according to one embodiment of the present invention.

[0061] Figure 2 is an exploded perspective view of Figure 1.

[0062] FIG. 3 is a perspective view illustrating a base module in a folding mechanism for stress-free use according to one embodiment of the present invention.

[0063] FIG. 4 is a perspective view illustrating a folding module in a stress-free folding mechanism according to one embodiment of the present invention.

[0064] Figure 5 is an exploded perspective view of Figure 4.

[0065] FIG. 6 is a perspective view illustrating a jig module in a folding mechanism for stress-free operation according to one embodiment of the present invention.

[0066] Figure 7 is an exploded perspective view of Figure 6.

[0067] FIG. 8 is a perspective view showing a first folding state of a folding mechanism for stress-free operation according to one embodiment of the present invention, where (a) shows a state in which a flexible material is folded at 90 degrees, and (b) shows a state in which a jig module is folded at 90 degrees.

[0068] Figure 9 is an enlarged cross-sectional view of portion “A” of Figure 8.

[0069] FIG. 10 is a perspective view showing a second folding state of a folding mechanism for stress-free operation according to one embodiment of the present invention, where (a) shows a state in which a flexible material is folded at 0 degrees, and (b) shows a state in which a jig module is folded at 0 degrees.

[0070] Figure 11 is an enlarged cross-sectional view of portion “B” of Figure 10.

[0071] Figure 12 is a cross-sectional view of the abuse of the “C” portion of Figure 10.

[0072]

[0073] The above-described purposes, other purposes, features, and advantages of the present invention will be readily understood through the following preferred embodiments, illustrated in 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 introduced herein are provided to ensure that the disclosure is thorough and complete, and to ensure that the spirit of the present invention is fully conveyed to those skilled in the art.

[0074] 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 thicknesses of components may be exaggerated for the purpose of effectively explaining the technical content.

[0075] When terms such as "first," "second," etc. are used herein to describe components, these components are not intended to be limited by these terms. These terms are used solely to distinguish one component from another. The embodiments described and illustrated herein also encompass complementary embodiments.

[0076] Additionally, when it is said that a first element (or component) operates or executes on a second element (or component), it should be understood that the first element (or component) operates or executes in an environment in which the second element (or component) operates or executes, or that the second element (or component) operates or executes through direct or indirect interaction.

[0077] When an element, component, device or system is referred to as including a component consisting of a program or software, it should be understood that the element, component, device or system includes hardware (e.g., memory, CPU, etc.) or other programs or software (e.g., an operating system or drivers necessary to operate hardware) necessary for the program or software to run or operate, even if no explicit mention is made of it.

[0078] Additionally, unless specifically stated otherwise in the implementation of any element (or component), it should be understood that the element (or component) may be implemented in software, hardware, or both software and hardware.

[0079] Additionally, the terminology used herein is for the purpose of describing embodiments and is not intended to limit the present invention. As used herein, the singular forms also include plural forms unless specifically stated otherwise. As used herein, the terms "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components.

[0080] Hereinafter, an embodiment of the present invention has been described, but a person having ordinary skill in the art will be able to modify and change the present invention in various ways by adding, changing, deleting or adding components, etc., within the scope that does not depart from the spirit of the present invention described in the claims, and this will also be considered to be included within the scope of the rights of the present invention.

[0081]

[0082] Referring to FIGS. 1 to 12, a folding mechanism for stress-free operation according to one embodiment of the present invention may include a base module (10) and a folding module (20).

[0083] 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) that is protruded from the base body (11) so that the folding module (20) can be rotatably coupled. A main body opening is formed through the base body (11) to facilitate ventilation and heat dissipation according to the operation of the folding mechanism and to minimize the load of the base body (11). The folding support brackets (12) are provided on the base body (11) so that a pair faces each other while being spaced apart from each other.

[0084] In addition, the base module (10) may further include a base coupling member (13) that is formed protruding from the base body (11) for coupling with the system body.

[0085]

[0086] The folding module (20) is rotatably coupled to the base module (10) to implement the folding motion of the flexible material. The other side of the flexible material is coupled to the folding module (20) via the folding member (32) of the jig module (30) described later.

[0087] The folding module (20) may include a folding body (21) that is spaced apart from the base module (10), a rotational driving member (22) that is rotatably coupled to the base module (10) at one end and rotatably coupled to the folding body (21) at the other end, and a linkage member (24) that is slidably coupled to the folding body (21) via a sliding member (23).

[0088] The folding body (21) has a flat shape, and it is desirable that a reciprocating mounting portion (211) is provided on the surface of the folding body (21) facing the linking member (24) to which a sliding member (23) is coupled.

[0089] The rotational driving member (22) may include a folding bracket (221), a folding mounting module that rotatably connects one end of the folding bracket (221) and the base module (10), and a rotational mounting module (225) that rotatably connects the other end of the folding bracket (221) and the folding main body (21).

[0090] The folding bracket (221) can be arranged in pairs facing each other with a distance from each other in correspondence with the folding support bracket (12).

[0091] The folding mounting module may include a folding hole portion provided in one of one end of the folding bracket (221) and the folding support bracket (12), a folding axis portion (222) coupled to one end of the folding bracket (221) and the other of the folding support brackets (12), and a folding bearing (224) fitted into the folding hole portion and rotatably coupled to the folding axis portion (222).

[0092] The rotation mounting module (225) may include a rotation hole (2255) provided in one of the other end of the folding bracket (221) and the folding body (21), a rotation shaft (252) coupled to the other end of the folding bracket (221) and the other end of the folding body (21) via the rotation bracket (2251), and a rotation bearing (2254) fitted into the rotation hole (2255) and rotatably coupled to the rotation shaft (252).

[0093] The linkage member (24) has a flat shape and is supported by being laminated on the folding body (21).

[0094] The sliding member (23) may include a linkage guide (241) coupled to one of the folding body (21) and the linkage member (24) to form a sliding movement path of the linkage member (24) based on the folding body (21), and a plurality of linkage sliders (243) coupled to the other of the folding body (21) and the linkage member (24) to enable sliding movement to the linkage guide (241).

[0095] The sliding member (23) may further include a linkage bracket (245) that is coupled to the other of the folding body (21) and the linkage member (24) and to which a plurality of linkage sliders (243) are coupled. The linkage bracket (245) may include a plurality of guide rods (246) that are coupled to the other of the folding body (21) and the linkage member (24) so ​​as to be parallel to the linkage guide (241) and to which a plurality of linkage sliders (243) are coupled, and a load connection frame (248) that mutually couples the plurality of guide rods (246).

[0096] Then, according to the folding motion 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 linkage member (24) slides based on the folding body (21), so that the sliding motion and the rotational motion are mutually linked and operate, and the folding motion of the jig module (30) can be clearly performed.

[0097]

[0098] A stress-free folding mechanism according to one embodiment of the present invention may further include at least the jig module (30) among the jig module (30) and the jig detachment module (40). The jig module (30) is coupled to the folding module (20) in a state where it is coupled to the base module (10) so that a flexible material is mounted thereon. In addition, the jig detachment module (40) detachably couples the jig module (30) to the base module (10). The jig detachment module (40) may include a detachable base (41) having a member positioning part (411) for positioning a fixed jig coupling part (312) of the jig module (30), and a base detachment part (42) for detachably coupling the detachable base (41) to the base module (10).

[0099] The jig module (30) may include a fixing member (31) that is coupled to the base module (10) so that one side of the flexible material is supported, a folding member (32) that is spaced 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 rotational support member (33) that connects an end of the fixing member (31) and an end of the folding member (32) that are adjacent to each other.

[0100] The fixed member (31) has a flat shape. The fixed member (31) may be provided with a fixed support connecting portion (311) to which a fixed support member (332) of a rotational support member (33) is connected at both ends. The fixed member (31) may be provided with a fixed jig connecting portion (312) to which a jig detachment module (40) is connected, spaced apart from the fixed support connecting portion (311). A fixed positioning groove portion (313) may be formed by recessing at an end of the fixed member (31) facing the folding member (32). A fixed blade blocking portion (314) may be provided at a side of the fixed member (31) facing the folding member (32) to block the rotation of a rotary blade (34) described later when the folding of the flexible material is completed.

[0101] The folding member (32) has a flat shape and is spaced apart from the fixed member (31) on the same plane when the flexible material is unfolded. A folding support joining portion (321) to which a folding support member (333) of a rotational support member (33) is joined may be provided at both ends of the folding member (32). A folding positioning groove portion (323) may be recessed and formed at the end of the folding member (32) that faces the fixed member (31). A folding wing blocking portion (324) that blocks the rotation of the rotary blade (34) when the folding of the flexible material is completed may be provided at the side of the folding member (32) that faces the fixed member (31).

[0102] At this time, it is preferable that the fixed support joint (311) and the folding support joint (321) are symmetrical to each other. In addition, it is preferable that the fixed position groove (313) and the folding position groove (323) are symmetrical to each other. In addition, it is preferable that the fixed wing stopper (314) and the folding wing stopper (324) are symmetrical to each other.

[0103] The pivot support member (33) may include a fixed support axis (334) that forms a center of rotation of the pivot support member (33) with respect to the fixed member (31), and a folding support axis (335) that is spaced apart from the fixed support axis (334) and forms a center of rotation of the folding member (32) with respect to the pivot support member (33). Then, when the folding member (32) is folded with respect to the fixed member (31), it is preferable that the pivot 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 pivot support member (33).

[0104] The rotation support member (33) may include a mounting bracket (331) arranged 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, it is preferable that the fixed support member (332) and the folding support member (333) are mutually gear-coupled.

[0105] The mounting bracket (331) may include a mounting rod (3311) and mounting wings (3312) that are formed to protrude at both ends of the mounting rod (3311). The mounting rod (3311) may be provided with a wing flow groove (3313) into which a rotary wing (34) described later can be inserted. A fixed support shaft (334) and a folding support shaft (335) are coupled to the mounting wing (3312).

[0106] The fixed support member (332) may include a fixed gear (3321) that is rotatably coupled to the mounting wing (3312) of the mounting bracket (331) via the fixed support shaft (334), and a fixed rod that protrudes from the fixed gear (3321). A fixed gear (3321) tooth for gear coupling is formed on the outer circumferential surface of the fixed gear (3321), and the fixed rod is coupled to a fixed support coupling portion (311) provided on the fixed member (31).

[0107] The folding support member (333) may include a folding gear (3331) that is rotatably coupled to a mounting wing (3312) of a mounting bracket (331) via a folding support shaft (335), and a folding rod that is formed to protrude from the folding gear (3331). On the outer surface of the folding gear (3331), a folding gear (3331) tooth that engages with a fixed gear (3321) tooth is formed, and the folding rod is coupled to a folding support coupling portion (321) provided on the folding member (32).

[0108] The jig module (30) may further include a pair of rotary blades (34) that are spaced apart from each other to form a symmetry, and are rotatably coupled to a rotary support member (33) via a wing shaft (342). The rotary blades (34) may be divided into fixed blades that are rotatably coupled to a fixed support member (332) via a first axis of the wing shaft (342), and folding blades that are rotatably coupled to a folding support member (333) via a second axis of the wing shaft (342).

[0109] The rotary wing (34) includes a pair of wing bodies (341) that are formed long between the fixed member (31) and the folding member (32) and are rotatably connected to the fixed frame (3322) and the folding frame (332) of the rotational support member (33) via the wing shaft (342), and an idle stopper (343) that is protruded and formed on the wing body (341) so as to be supported by the fixed frame (3322) and the folding frame (332) of the rotational support member (33) respectively when the flexible material is in an unfolded idle state, and a wing support part (344) that is provided on the side of the wing body (341) so as to be supported by the fixed wing stop part (314) and the folding wing stop part (324) respectively as the folding of the flexible material is completed, and a fixed position groove part (313) and a folding position groove part (323) respectively according to the folding motion of the flexible material. At least one of the wing positioning projections (345) formed protruding at the end of the rotary blade (34) to enable insertion may be further included.

[0110] In summary, a fixed position groove (313) may be formed in a recessed manner in one of the side surfaces of the fixed member (31) facing the folding member (32) and the rotary blade (34), and a folding position groove (323) may be formed in a recessed manner in one of the side surfaces of the folding member (32) facing the fixed member (31) and the rotary blade (34). Accordingly, a wing position projection (345) that can be inserted and removed into the fixed position groove (313) and the folding position groove (323) is formed protrudingly in the other of the side surfaces of the fixed member (31) facing the folding member (32) and the rotary blade (34) facing the fixed member (31), respectively, according to the folding motion of the flexible material.

[0111]

[0112] Accordingly, the detachable base (41) is coupled to the fixed support joint (311), and then the detachable base (41) to which the fixed member (31) is coupled is coupled to the base module (10) using the base detachable member (42). In addition, the folding member (32) is coupled to the linkage member (24) of the folding module (20). Then, since the fixed member (31), the folding member (32), and the rotary blade (34) are arranged parallel to the same plane, the flexible material is spread out 180 degrees and coupled to the jig module (30).

[0113] When the folding module (20) is rotated at 180 degrees in a state where the fixed member (31) and the folding member (32) are arranged parallel to each other as shown in FIG. 1, the folding member (32) is arranged at 90 degrees with respect to the fixed member (31) as shown in FIGS. 8 and 9, and then, as shown in FIGS. 10 to 12, the fixed member (31) and the folding member (32) are arranged in a 0 degree state in which they overlap in parallel. At this time, as the folding member (32) rotates with respect to the fixed member (31), the pivoting member rotates with respect to the base module (10), the folding member (32) rotates with respect to the rotational member (22), and the linking 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 linking member (24) form a smooth curved trajectory, and stress can be prevented from being applied to the flexible material.

[0114] When the folding of the flexible material is completed, as shown in Fig. 12, the fixed member (31) and the folding member (32) face each other and are parallel, and a pair of rotary blades (34) are spread outward toward the mounting bracket (331), so that the area where the flexible material is bent has a water drop shape.

[0115]

[0116] According to the stress-free folding mechanism described above, when performing a folding durability test of a flexible material, the stress applied to the folded flexible material can be minimized or the stress applied to the folded flexible material can be prevented. In addition, the folding motion of the flexible material can be clearly implemented. In addition, when implementing the folding motion of the flexible material, since the sliding method and the rotating method are performed in parallel, the movement trajectory of the folding body (21) and the movement trajectory of the linkage member (24) form a smooth curved trajectory, and stress can be prevented from being generated in the flexible material.

[0117] 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 formed stably.

[0118] In addition, the rotational movement of the folding bracket (221) can be clearly implemented based on the base module (10).

[0119] In addition, the rotational movement of the folding body (21) can be clearly implemented based on the folding bracket (221).

[0120] In addition, the sliding movement of the linking member (24) can be smoothly performed based on the folding body (21). In addition, since a plurality of linking sliders (243) are modularized, the sliding movement of the linking member (24) can be clearly performed based on the folding body (21), and the play resulting from the sliding movement can be minimized.

[0121] In addition, it is possible to simplify the installation of flexible materials and clearly implement the folding motion of flexible materials.

[0122] In addition, the jig module (30) can be replaced in various ways depending on the type of flexible material or test type. In addition, the jig module (30) can be easily attached and detached from the base module (10).

[0123] Additionally, the jig module (30) can be positioned in the base module (10).

[0124] In addition, the jig module (30) can be stably connected to the base module (10) and the folding module (20), and the folding motion of the flexible material can be clearly implemented according to the motion of the folding module (20), and stress can be suppressed or prevented from being applied to the flexible material.

[0125] In addition, the joint operation of the fixed member (31), the folding member (32), and the rotational support member can be smoothly performed, and the stress applied to the flexible material can be suppressed or prevented as the fixed member (31), the folding member (32), and the rotational support member (33) are mutually connected and rotated.

[0126] In addition, the linked rotation of the mounting bracket (331), the fixed support member (332), and the folding support member (333) can be clearly established, and stress applied to the flexible material when the flexible material is folded can be suppressed or prevented.

[0127] In addition, when the flexible material is folded, the bending area of ​​the flexible material can be supported to form a water droplet shape, and the bending area of ​​the flexible material can be covered to protect the flexible material. In addition, when the folding of the flexible material is completed, the facing flexible materials can be ensured to be parallel and close to each other, and the thickness after folding can be reduced. In addition, the bending traces in the bending area of ​​the flexible material can be minimized, the flatness of the flexible material can be improved in the unfolded state, and the surface of the flexible material can be made smooth.

[0128] In addition, the fixed member (31), the folding member (32), and the rotary blade (34) can be arranged flat on the same plane while the flexible material is unfolded, and the unfolded state of the flexible material can be maintained flat.

[0129] In addition, as the folding of the flexible material is completed, the shape of the water droplet in 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.

[0130] In addition, as the folding of the flexible material is completed, the shape of the water droplet in 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.

[0131] In addition, the individual movements of the fixed member (31), the folding member (32), and the rotary blade (34) can be clearly defined, and the rotary blade (34) can be positioned between the fixed member (31) and the folding member (32).

[0132]

[0133] *** Explanation of symbols ***

[0134] 10: Base module 11: Base body 12: Folding support bracket

[0135] 13: Base joint member

[0136] 20: Folding module 21: Folding body 211: Reciprocating mounting part

[0137] 22: Rotating drive member 221: Folding bracket 222: Folding shaft

[0138] 224: Folding bearing 225: Rotating mounting module 2251: Rotating bracket

[0139] 2252: Rotating shaft 2254: Rotating bearing 2255: Rotating hole

[0140] 23: Sliding member 24: Linking member 241: Linking guide

[0141] 243: Linkage slider 245: Linkage bracket 246: Guide rod

[0142] 248: Load connecting frame

[0143] 30: Jig module 31: Fixed member 311: Fixed support joint

[0144] 312: Fixed jig joint 313: Fixed position groove 314: Fixed wing support

[0145] 32: Folding member 321: Folding support joint 323: Folding positioning groove

[0146] 324: Folding wing support member 33: Rotating support member 331: Mounting bracket

[0147] 3311: Mounting rod 3312: Mounting wing 3313: Wing flow groove

[0148] 332: Fixed support member 3321: Fixed gear 3322: Fixed frame

[0149] 333: Folding support member 3331: Folding gear 3332: Folding frame

[0150] 334: Fixed support shaft 335: Folding support shaft 34: Rotating blade

[0151] 341: Wing body 342: Wing shaft 343: Idle stopper

[0152] 344: Wing support part 345: Wing positioning protrusion 40: Jig removal module

[0153] 41: Detachable base 411: Non-fixed positioning part 42: Base detachable member

[0154] The present invention relates to a technology for a stress-free folding mechanism that minimizes stress applied to a folded flexible material or prevents stress from being applied to a folded flexible material when conducting a folding durability test of a flexible material.

Claims

1. Base module; and In order to implement a folding motion of a flexible material, a folding module is rotatably coupled to the base module and to which the flexible material is coupled; The above folding module, A folding body spaced apart from the above base module; A rotary driving member having one end rotatably coupled to the base module and the other end rotatably coupled to the folding body; and A stress-free folding mechanism, characterized by including a linkage member that is slidably connected to the folding body via a sliding member.

2. In paragraph 1, The above rotary drive member is, folding bracket; A folding mounting module that rotatably connects one end of the folding bracket to the base module; and A stress-free folding mechanism characterized by including a rotation mounting module that rotatably connects the other end of the folding bracket and the folding main body.

3. In paragraph 2, The above base module is provided with a folding support bracket; The above folding mounting module is, A folding hole provided at one end of the above folding bracket and one of the above folding support brackets; A folding axis portion connected to one end of the above folding bracket and the other end of the above folding support bracket; and A stress-free folding mechanism characterized by including a folding bearing that is fitted into the folding hole and rotatably coupled to the folding axis.

4. In paragraph 2, The above rotation mounting module is, A rotating hole provided in one of the other end of the above folding bracket and the above folding body; A rotating shaft portion connected to the other end of the folding bracket and the other one of the folding body via the rotating bracket; and A folding mechanism for stress-free operation, characterized by including a rotary bearing that is fitted into the rotary hole and rotatably coupled to the rotary shaft.

5. In any one of paragraphs 1 to 4, A stress-free folding mechanism, characterized in that it further includes a jig module coupled to the folding module while being coupled to the base module so that the flexible material is mounted thereon.

6. In paragraph 5, A stress-free folding mechanism, characterized by further comprising a jig detachment module that detachably attaches the jig module to the base module.

7. In paragraph 6, The above jig module is provided with a fixed jig joint; The above jig removal module is, A detachable base having a fixed positioning part for fixing the above-mentioned fixed jig joint; and A stress-free folding mechanism, characterized by including a base detachment member that detachably connects the detachable base to the base module.

8. In paragraph 5, The above jig module is, A fixed member coupled to the base module so that one side of the flexible material is supported; A folding member that is spaced apart from the above-mentioned fixed member and is coupled to the above-mentioned folding module so that the other side of the above-mentioned flexible material is supported; and A folding mechanism for stress-free operation, characterized by including a pivotal support member connecting an end of the fixed member and an end of the folding member that are adjacent to each other.

9. In paragraph 8, In the above-mentioned rotating support member, A fixed support axis forming the center of rotation of the pivot support member based on the fixed member; and A folding support axis is included, which is spaced apart from the fixed support axis and forms a center of rotation of the folding member based on the rotating support member; The above rotation support member is, A stress-free folding mechanism characterized in that when the folding member is folded based on the fixed member, the folding member rotates based on the fixed member in conjunction with the rotation of the folding member based on the pivotal support member.

10. In paragraph 9, The above rotation support member is, A mounting bracket arranged between the above-mentioned fixed member and the above-mentioned folding member; A fixed support member coupled to the above fixed member and rotatably coupled to the mounting bracket via the fixed support shaft; and It includes a folding support member that is coupled to the above folding member and is rotatably coupled to the mounting bracket via the folding support axis; A folding mechanism characterized in that the above-mentioned fixed support member and the above-mentioned folding support member are mutually gear-coupled.

11. In paragraph 8, The above jig module is, A stress-free folding mechanism, characterized in that it further includes a pair of rotating wings that are spaced apart from each other to form a symmetry and are rotatably connected to the rotating support member.

12. In paragraph 11, In the above rotary blade, A stress-free folding mechanism characterized in that it comprises an idle stopper that is supported by being caught on the rotating support member when the flexible material is in an unfolded idle state.

13. In paragraph 11, On the side of the fixed member facing the folding member, As the folding of the above flexible material is completed, a fixed wing stopper for preventing the rotation of the above rotary wing is provided; On the side of the folding member facing the fixed member, As the folding of the above flexible material is completed, a folding wing stopper is provided to prevent the rotation of the above rotary wing; A folding mechanism for stress-free operation, characterized in that the fixed wing support portion and the folding wing support portion are mutually symmetrical.

14. In paragraph 13, On the side of the above rotor blade, A stress-free folding mechanism characterized in that a wing support part is provided, which is supported by the fixed wing support part and the folding wing support part respectively as the folding of the flexible material is completed.

15. In paragraph 11, A fixed positioning groove is formed in a recess on one of the sides of the fixed member facing the folding member and the rotating blade; A folding positioning groove is formed in a recess on one of the sides of the folding member facing the fixed member and the rotating blade. A stress-free folding mechanism characterized in that a wing positioning projection, which can be removably inserted into the fixed positioning groove portion and the folding positioning groove portion, is formed protruding on one of the side surfaces of the fixed member facing the folding member and the other of the rotary blades, and on one of the side surfaces of the folding member facing the fixed member and the other of the rotary blades, according to the folding motion of the flexible material.

Images