Manufacturing method of belt body structure and belt body structure

Abstract

The invention provides a manufacturing method of a belt body structure and the belt body structure, which can improve the bonding property and the structural strength of a rope part and a resin part. The manufacturing method of the belt body structure comprises the following steps: providing a mold; a rope member supply step of conveying the elongated rope member into the chamber so as to supply the rope member to the chamber; and an injection molding step of injecting a resin material into the chamber to form a resin member around the cord member, in which the cord member is partially fixed to assume a stretched state while being conveyed into the chamber, and the resin member is injection-molded from a resin material and fixed to the stretched portion of the cord member when the cord member is in the stretched state. The belt body structure comprises: an elongated rope member; and a resin member formed around the cord member by injection molding of a resin material, the cord diameter of a portion of the cord member located inside the resin member being smaller than the cord diameter of a portion of the cord member located outside the resin member.

Description

Technical Field

[0001] The present invention relates to the technology of the field of fabric product manufacturing, and in particular to a belt structure that can be used as an accessory of a fabric product and a manufacturing method thereof. Background Art

[0002] In the prior art, common fabric products (e.g., clothing, bags, shoes) may be provided with accessories (e.g., drawstrings for zipper pulls, drawstrings for the edges of clothing, buckles for bag covers or the openings of clothing, etc.), and these belt-shaped accessories may be formed by a belt structure. For example, a slender rope component may be used to provide the belt portion, and the rope component may be fixed to the main body. In this case, it is necessary to provide a through hole in the main body, pass the rope component through the through hole, and then tie a knot to fix the rope component to the main body. Currently, a method has been developed in which the main body is formed on the rope component by injection molding a resin material, thereby omitting the steps of punching holes in the main body and tying the rope component. However, although the main body is tightly bonded to the outer peripheral surface of the rope component by injection molding a resin material, when the belt structure is used as an accessory, the rope component may become thinner due to stretching, thereby falling off from the pre-formed through hole of the resin component. Therefore, it is necessary to improve the bonding property (ie, structural strength) between the string member and the resin member (main body) of the belt structure. Summary of the Invention

[0003] The present invention provides a method for manufacturing a belt structure and the belt structure, which can improve the bonding property and structural strength of a rope component and a resin component.

[0004] The present invention provides a method for manufacturing a belt structure, which includes: a mold providing step, providing a mold having a cavity for forming a resin part; a rope part supplying step, conveying an elongated rope part into the cavity along the length direction of the rope part to supply the rope part to the cavity; and an injection molding step, injecting resin material into the cavity to form the resin part around the rope part, wherein the rope part is partially fixed during the process of being conveyed into the cavity, so that at least a part of the rope part is in a stretched state in the conveying direction in the cavity, and the resin part is fixed to the stretched part of the rope part by injection molding of the resin material when the rope part is in the stretched state.

[0005] In an embodiment of the present invention, in the rope component supplying step, the rope component transported into the chamber is fixed on opposite sides of the transporting direction of the mold so that the portion between the two opposite fixed ends of the rope component is in a stretched state along the transporting direction, and in the injection molding step, the resin component is formed between the two opposite fixed ends of the rope component in the transporting direction.

[0006] In an embodiment of the present invention, the method for manufacturing the belt structure further includes a cutting step of cutting an end portion of the string component close to the resin component after the injection molding step.

[0007] In an embodiment of the present invention, in the cutting step, the string member is cut along one side surface of the resin member in the conveying direction so that the resin member is located at an end portion of the string member after the cutting.

[0008] In an embodiment of the present invention, in the injection molding step, at least two resin members are formed around the string member so as to be spaced apart from each other, and in the cutting step, the string member is cut between the at least two resin members.

[0009] In an embodiment of the present invention, in the mold providing step, the cavity of the mold includes an elongated rope passing portion for the rope component to pass continuously along the conveying direction, and a resin material forming portion extending from one portion of the rope passing portion to a direction different from the conveying direction. In the rope component supplying step, the rope component conveyed to the rope passing portion is in a stretched state in the rope passing portion, and in the injection molding step, resin material is injected into the resin material forming portion so that the resin component formed by the resin material filled in the resin material forming portion is directly covered on the stretched portion of the rope component passing through the rope passing portion.

[0010] In an embodiment of the present invention, in the rope component supplying step, the rope diameter of the stretched portion of the rope component is smaller than the rope diameter of other unstretched portions of the rope component, and the resin component is formed on the stretched portion with a small rope diameter.

[0011] The present invention also provides a belt structure, which includes: a slender rope component; and a resin component, which is formed around the rope component by injection molding of resin material, and the rope diameter of the rope component at the part inside the resin component is smaller than the rope diameter of the rope component at the part outside the resin component.

[0012] In an embodiment of the present invention, the resin member has a through hole, and one end portion of the string member in the longitudinal direction is closely arranged in the through hole and exposed to the outside from the through hole.

[0013] In an embodiment of the present invention, the rope diameter of the portion of the rope member located inside the resin member is less than 60% of the rope diameter of the portion of the rope member located outside the resin member.

[0014] Based on the above, in the method for manufacturing a belt structure of the present invention, the rope component is partially fixed during transportation into the mold cavity, so that at least a portion of the rope component is stretched in the cavity along the transportation direction, and the resin component is injection-molded from the resin material while the rope component is stretched and fixed to the stretched portion of the rope component. Similarly, in the belt structure of the present invention, the rope diameter of the portion of the rope component located inside the resin component is smaller than the rope diameter of the portion of the rope component located outside the resin component. In this way, when the belt structure is used as an accessory, even if the rope diameter of the rope component becomes thinner due to stretching, the rope component is not likely to fall off from the pre-formed through-hole of the resin component (corresponding to the rope diameter of the portion of the rope component that becomes thinner due to stretching). Accordingly, the method for manufacturing a belt structure of the present invention and the belt structure can improve the bonding and structural strength of the rope component and the resin component.

[0015] In order to make the above features and advantages of the present invention more clearly understood, embodiments are given below with reference to the accompanying drawings for detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a flow chart of a method for manufacturing a belt structure according to one embodiment of the present invention;

[0017] Figure 2 yes Figure 1 A schematic side cross-sectional view of a mold used in the method for manufacturing the belt structure shown;

[0018] Figure 3 yes Figure 2 A schematic plan view of the movable portion of the die shown;

[0019] Figure 4 is a three-dimensional schematic diagram of a belt structure according to an embodiment of the present invention;

[0020] Figure 5 yes Figure 4 A partial enlarged schematic diagram of the belt structure shown;

[0021] Figure 6 yes Figure 1 The figure is a plan view of the movable part of another mold used in the method for manufacturing the belt structure.

[0022] Description of reference numerals:

[0023] 50, 50A: mold;

[0024] 52: chamber;

[0025] 52a: Rope passing part;

[0026] 52b: resin material forming portion;

[0027] 54: fixed part;

[0028] 56: movable part;

[0029] 58: supply channel;

[0030] 60: fixture;

[0031] 100: belt structure;

[0032] 110: rope component;

[0033] 112: stretching area;

[0034] 114A, 114B: fixed end;

[0035] 116: Cut off the end face;

[0036] 120: resin parts;

[0037] 122: through hole;

[0038] L: length direction;

[0039] R1, R2: rope diameter;

[0040] S1: providing mold step;

[0041] S2: Rope component supply step;

[0042] S3: injection molding step;

[0043] S4: Cutting step. DETAILED DESCRIPTION

[0044] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Figure 1 is a flow chart of a method for manufacturing a belt structure according to one embodiment of the present invention. Figure 2 yes Figure 1 A schematic side cross-sectional view of a mold used in the method for making a belt structure is shown. Figure 3 yes Figure 2 A schematic plan view of the movable part of the mold is shown. Figure 4 is a three-dimensional schematic diagram of a belt structure according to an embodiment of the present invention. Figure 5 yes Figure 4 The partially enlarged schematic diagram of the belt structure shown is Figure 6 yes Figure 1 The following is a schematic plan view of the movable part of another mold used in the method for making the belt structure. Figures 1 to 6 A method for manufacturing the belt structure 100 and a specific structure of the belt structure 100 according to an embodiment of the present invention are described, but the present invention is not limited thereto and can be adjusted according to needs.

[0045] Please refer to Figures 1 to 3 In this embodiment, the method for manufacturing the belt structure 100 includes a mold providing step S1, a string member supplying step S2, and an injection molding step S3. First, in the mold providing step S1, a mold 50 having a cavity 52 for forming a resin member (later, resin member 120) is provided. In the string member supplying step S2, an elongated string member 110 is conveyed into the cavity 52 along the length direction L of the string member 110 to supply the cavity 52 with the string member 110. In the injection molding step S3, resin material is injected into the cavity 52 to form the resin member 120 around the string member 110. In which, the rope component 110 is partially fixed during the process of being transported into the chamber 52, so that at least a portion of the rope component 110 is in a stretched state along the transport direction (i.e., the length direction L in the accompanying drawings) in the chamber 52, and the resin component 120 is injection-molded by the resin material when the rope component 110 is in a stretched state and is fixed on the stretched portion 112 of the rope component 110.

[0046] Specifically, in this embodiment, Figure 2 As shown, in the mold providing step S1, the provided mold 50 includes a fixed portion 54 and a movable portion 56, and the movable portion 56 is movable relative to the fixed portion 54. When the mold 50 is closed (i.e., the movable portion 56 is brought close to the fixed portion 54 and in contact with each other), the concave-convex structures on the inner side surfaces of the fixed portion 54 and the movable portion 56 correspond to form a cavity 52. ​​In this way, in the rope component supplying step S2, as shown in FIG. Figure 3 As shown, the elongated rope member 110 can be wound along the length direction L of the rope member 110 (in the direction L) by a conveying mechanism (eg, a winding machine) not shown. Figure 2 In the direction perpendicular to the drawing, Figure 3The string member 110 is continuously transported (in the left-right direction) into the cavity 52 of the mold 50. In the injection molding step S3, while the portion of the string member 110 where the resin member 120 is to be formed passes through the cavity 52, resin material is supplied through the supply channel 58 of the mold 50 (formed in the movable portion 56 and / or the fixed portion 54). Thus, the resin member 120 is formed at the portion of the string member 110 where the resin member 120 is to be formed through the injection molding process. Subsequently, when the mold 50 is opened (i.e., the movable portion 56 is separated from the fixed portion 54), the belt structure 100 including the string member 110 and the resin member 120 can be removed from the mold 50. However, the specific structure of the mold 50 (including the shape of the cavity 52, etc.) and the supply method for the string member 110 (which may also be discontinuous transport or staged placement into the cavity 52) are not limited by the present invention and can be adjusted as needed.

[0047] Furthermore, in this embodiment, if Figure 3 As shown, in the string member supply step S2, the string member 110 is partially fixed during transportation into the chamber 52. For example, a detachable clamp 60 is used to fix the portion of the string member 110 corresponding to the chamber 52, so that at least a portion of the string member 110 (i.e., the fixed portion) is stretched in the chamber 52 along the transportation direction (i.e., the longitudinal direction L in the figure). In other words, the string member 110 is first stretched, and then the clamp 60 is used to fix the portion of the string member 110 corresponding to the chamber 52, so that the fixed portion is stretched. In the injection molding step S3, the resin member 120 is injection-molded from the resin material while the string member 110 is stretched, and is fixed to the stretched portion 112 of the string member 110. Furthermore, in the string member supply step S2, the string diameter R1 of the stretched portion 112 of the string member 110 is smaller than the string diameter R2 of the other unstretched portions of the string member 110, and the resin member 120 is formed on the stretched portion 112 having the smaller diameter. Subsequently, the clamp 60 is released, the mold 50 is opened, and the belt structure 100 including the string member 110 and the resin member 120 is removed from the mold 50. At this time, even if the string diameter of the portion of the string member 110 outside the resin member 120 (including the stretched portion 112) returns to its pre-stretched state after the clamp 60 is released, the string diameter of the portion of the string member 110 inside the resin member 120 is restricted by the already formed resin member 120 and does not return to its pre-stretched diameter (i.e., the string diameter remains small).

[0048] Please refer to Figure 4 and Figure 5In this embodiment, through the above-mentioned method for manufacturing the belt structure 100, the belt structure 100 includes an elongated rope component 110 and a resin component 120. The resin component 120 is formed around the rope component 110 by injection molding of a resin material, and the rope diameter R1 of the rope component 110 located inside the resin component 120 is smaller than the rope diameter R2 of the rope component 110 located outside the resin component 120. Among them, although the resin component 120 of the belt structure 100 is shown as a roughly cubic structure, its specific structure can be adjusted according to actual needs, and a connecting portion can also be formed to facilitate the connection of other components not shown. As an example, Figure 5 As shown, the rope diameter R1 of the portion of the rope component 110 located within the resin component 120 (i.e., the smaller rope diameter in the stretched state) is less than 60% of the rope diameter R2 of the portion of the rope component 110 located outside the resin component 120 (i.e., the larger rope diameter in the unstretched state). For example, a rope component 110 with a rope diameter R2 of 2.5 centimeters (cm) is stretched to a rope diameter R1 of 1.5 cm, but this is not a limitation. At this point, the size of the through-hole 122 in the resin component 120 through which the rope component 110 passes corresponds to the smaller rope diameter of the stretched portion 112 in the stretched state. Consequently, the size of the through-hole 122 (i.e., corresponding to the smaller rope diameter R1) is smaller than the rope diameter R2 of the remaining unstretched portions of the rope component 110.

[0049] It can be seen from this that, through the above-mentioned arrangement, in this embodiment, when the belt structure 100 is used as an accessory, even if the rope component 110 becomes thinner due to stretching, the rope component 110 is not easy to fall off from the shaped through-hole 122 of the resin component 120 (corresponding to the rope diameter of the portion where the rope component 110 becomes thinner due to stretching). That is, it is difficult for the rope component 110 to become thinner due to stretching to a size smaller than the through-hole 122 (corresponding to the small rope diameter R1 in the stretched state) during the use of the belt structure 100, so that the rope component 110 and the resin component 120 can maintain a tight bond during the use of the belt structure 100. Accordingly, the manufacturing method of the belt structure 100 and the belt structure 100 can improve the bonding and structural strength of the rope component 110 and the resin component 120. However, as Figures 1 to 3 The manufacturing method of the belt structure 100 shown is not limited to manufacturing the belt structure 100 as shown in FIG. Figure 4 and Figure 5 The belt structure 100 shown in FIG. Figure 4 and Figure 5 The belt structure 100 shown is not limited to the Figures 1 to 3 The belt structure 100 is manufactured by the manufacturing method shown, and other manufacturing methods may also be used. The present invention is not limited to this, and it can be adjusted according to needs.

[0050] Furthermore, in this embodiment, if Figure 3As shown, in the mold providing step S1, the cavity 52 of the mold 50 includes an elongated rope passing portion 52a through which the rope member 110 continuously passes along the conveying direction, and a resin material forming portion 52b extending from one portion of the rope passing portion 52a in a direction different from the conveying direction (for example, the up and down direction in the drawing). In the rope member supplying step S2, the rope member 110 conveyed to the rope passing portion 52a is stretched in the rope passing portion 52a, and in the injection molding step S3, resin material is injected into the resin material forming portion 52b, so that the resin member 120 formed by the resin material filled in the resin material forming portion 52b directly covers the stretched portion 112 of the rope member 110 passing through the rope passing portion 52a. With the above arrangement, the rope member 110 can be continuously conveyed to the chamber C via the rope passage 52a (for example, the elongated rope member 110 can be continuously conveyed to the chamber C along the rope passage 52a by a winding machine (not shown), and the resin member 120 directly covering the rope member 110 can be formed by the resin material forming portion 52b connected to the rope passage 52a. However, the present invention is not limited to the specific shape of the mold 50, which can be adjusted as needed.

[0051] In addition, in this embodiment, Figure 3 As shown, in the rope component supply step S2, the rope component 110 conveyed into the cavity 52 is fixed (for example, by the above-mentioned clamp 60) on opposite sides of the conveying direction of the mold 50 (i.e., the longitudinal direction L in the drawings), so that the portion between the two opposite fixed ends 114A, 114B of the rope component 110 is in a stretched state along the conveying direction (i.e., the stretched portion 112), and in the injection molding step S3, the resin component 120 is formed between the two opposite fixed ends 114A, 114B of the rope component 110 in the conveying direction. With the above-mentioned arrangement, it is possible to ensure that the rope components 110 conveyed into the cavity 52 of the mold 50 are all in a stretched state, and it is possible to ensure that the resin component 120 formed by injection molding in the cavity C is formed in the stretched portion 112 of the rope component 110 (located between the two opposite fixed ends 114A, 114B of the rope component 110). Furthermore, the structure for securing the string member 110 at its two opposite fixed ends 114A and 114B (e.g., the aforementioned clamps 60) is located on opposite sides of the mold 50 (specifically, outside the mold 50), so that the securing means (i.e., the clamps 60) do not interfere with the opening and closing operation of the mold 50 (i.e., the movement of the movable portion 56 relative to the fixed portion 54). However, the present invention is not limited to the securing means for the string member 110, and such means may be adjusted as needed.

[0052] Furthermore, in this embodiment, if Figure 1As shown, the method for manufacturing the belt structure 100 further includes a cutting step S4. After the injection molding step S3, in the cutting step S4, the end of the string component 110 close to the resin component 120 is cut. Figure 3 As shown, after the injection molding step S3, the portion of the rope member 110 on which the resin member 120 is formed (eg, Figure 3 As shown by the dotted arrow), the cut rope component 110 and the resin component 120 constitute the belt structure 100 (as shown in FIG. Figure 4 The strip structure 100 shown in FIG. The cutting step S4 can also be performed within the mold 50. After the cutting step S4, the mold 50 is opened to remove the strip structure 100, including the string member 110 and the resin member 120. Alternatively, the cutting step S4 can be performed outside the mold 50. For example, after the mold 50 is opened, the string member 110 is moved out of the chamber 52. The cutting step S4 is performed only after the portion of the string member 110 on which the resin member 120 is formed is moved out of the chamber 52. The present invention does not limit the method for performing the cutting step S4, and it can be adjusted according to needs.

[0053] In addition, in this embodiment, Figure 3 As shown, in the cutting step S4, it is preferred that the rope component 110 is cut along one side of the resin component 120 in the conveying direction (i.e., the longitudinal direction L of the figure) so that the resin component 120 is located at the end of the rope component 110 after cutting (e.g., Figure 3 Thus, in Figure 4 and Figure 5 In the illustrated belt structure 100, the resin component 120 has a through-hole 122. One end of the string component 110 in the longitudinal direction L is closely aligned with the through-hole 122 and protrudes outward from the through-hole 122. However, the cut end surface 116 of the string component 110 may be flush with the surface of the resin component 120, or may protrude further outward from the surface of the resin component 120 (i.e., the string component 110 is not cut along one side of the resin component 120). The present invention does not limit the location of the string component 110 cut in the cutting step S4; as long as the resin component 120 is formed on the string component 110 after cutting to facilitate the formation of the belt structure 100, it is sufficient. Furthermore, in other embodiments not shown, the cutting step S4 may be omitted. Instead, the string component 110 of the desired length may be transferred into the chamber 52 to form the resin component 120, thereby obtaining the desired belt structure 100 after the injection molding step S3. The present invention is not limited to this and can be adjusted according to requirements.

[0054] Although the method of forming the resin member 120 by injection molding the resin material on the rope member 110 has been described so far, the present invention is not limited thereto. Figure 6 As shown, in the injection molding step S3, at least two resin members 120 are formed around the string member 110 and spaced apart from each other, and in the cutting step S4, the string member 110 is cut between the at least two resin members 120. Figure 6 As shown, the cavity 52 of the mold 50A includes a rope passing portion 52a and at least two resin material forming portions 52b spaced apart from each other, so that two resin parts 120 can be simultaneously formed by injection molding of the resin material on the stretched portion 112 of the rope part 110 that is transported into the cavity 52 and fixed in a stretched state. Subsequently, in the cutting step S4, the rope part 110 (as described above) can be cut from between the at least two resin parts 120 inside the mold 50A or outside the mold 50A (as described above). Figure 6 (Indicated by the dashed arrows). In this manner, at least two resin components 120 can be simultaneously formed on the continuously conveyed string component 110 using mold 50A, and two belt structures 100 can be obtained through the same manufacturing process, thereby improving the production efficiency of the belt structure 100. However, in other embodiments not shown, at least two resin components 120 can be formed around the string component 110 in the injection molding step S3, but the cutting step S4 is not performed to obtain a belt structure having at least two resin components 120. The present invention is not limited to this and can be adjusted according to needs.

[0055] In summary, in the method for manufacturing a belt structure according to the present invention, the cord component is partially fixed during transport into the mold cavity, causing at least a portion of the cord component to be stretched in the transport direction within the cavity. Furthermore, the resin component is injection-molded from the resin material while the cord component is stretched and fixed to the stretched portion of the cord component. Similarly, in the belt structure according to the present invention, the cord diameter of the portion of the cord component located within the resin component is smaller than the cord diameter of the portion of the cord component located outside the resin component. In particular, during the cord component supply step, the cord diameter of the stretched portion of the cord component is smaller than the cord diameter of the remaining unstretched portion of the cord component, and the resin component is formed in the stretched portion with the smaller cord diameter. For example, the cord diameter of the portion of the cord component located within the resin component is less than 60% of the cord diameter of the portion of the cord component located outside the resin component. Thus, when the belt structure is used as an accessory, even if the cord component becomes thinner due to stretching, the cord component is less likely to fall out of the pre-formed through-holes (corresponding to the cord diameter of the thinned portion of the cord component) in the resin component. Therefore, the manufacturing method of the belt structure and the belt structure of the present invention can improve the bonding and structural strength of the rope component and the resin component.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for manufacturing a belt structure, characterized in that: include: A mold providing step (S1) is to provide a mold (50, 50A) having a cavity (52) for forming a resin part (120); a rope component supplying step (S2), conveying the elongated rope component (110) into the chamber (52) along the length direction (L) of the rope component (110) to supply the rope component (110) to the chamber (52); and Injection molding step (S3), injecting resin material into the cavity (52) to form the resin part (120) around the rope part (110), wherein The rope member (110) is partially fixed during the process of being transported into the chamber (52), so that at least a portion of the rope member (110) is in a stretched state along the transport direction in the chamber (52), and The resin component (120) is injection-molded from the resin material when the rope component (110) is in a stretched state and is fixed to the stretched portion (112) of the rope component (110).

2. The method for manufacturing a belt structure according to claim 1, characterized in that: In the rope component supplying step (S2), the rope component (110) conveyed into the chamber (52) is fixed on opposite sides of the conveying direction of the mold (50, 50A), so that the portion between the two opposite fixed ends (114A, 114B) of the rope component (110) is stretched along the conveying direction, and In the injection molding step (S3), the resin component (120) is formed between two opposite fixed ends (114A, 114B) of the string component (110) in the conveying direction.

3. The method for manufacturing a belt structure according to claim 1, characterized in that: Also includes: A cutting step (S4) is performed after the injection molding step (S3), wherein the end portion of the string component (110) close to the resin component (120) is cut.

4. The method for manufacturing a belt structure according to claim 3, characterized in that: In the cutting step (S4), the string component (110) is cut along one side surface of the resin component (120) in the conveying direction so that the resin component (120) is located at the end of the string component (110) after the cutting.

5. The method for manufacturing a belt structure according to claim 3, characterized in that: In the injection molding step (S3), at least two resin parts (120) are formed around the string part (110) so as to be spaced apart from each other, and In the cutting step (S4), the string member (110) is cut between at least two of the resin members (120).

6. The method for manufacturing a belt structure according to claim 1, characterized in that: In the mold providing step (S1), the cavity (52) of the mold (50, 50A) includes an elongated rope passing portion (52a) for the rope member (110) to continuously pass along the conveying direction, and a resin material forming portion (52b) extending from one portion of the rope passing portion (52a) in a direction different from the conveying direction. In the rope component supplying step (S2), the rope component (110) conveyed to the rope passing portion (52a) is in a stretched state in the rope passing portion (52a), and In the injection molding step (S3), resin material is injected into the resin material molding portion (52b), so that the resin component (120) formed by the resin material filled in the resin material molding portion (52b) is directly covered on the stretching portion (112) of the rope component (110) passing through the rope passing portion (52a).

7. The method for manufacturing a belt structure according to any one of claims 1 to 6, characterized in that: In the rope component supplying step (S2), the rope diameter (R1) of the stretched portion (112) of the rope component (110) in a stretched state is smaller than the rope diameter (R2) of the other unstretched portions of the rope component (110), and The resin component (120) is formed on the stretching portion (112) where the rope diameter is small.

8. A belt structure, characterized in that: include: an elongated rope member (110); as well as The resin component (120) is formed around the rope component (110) by injection molding of a resin material, and The rope diameter (R1) of the rope component (110) located inside the resin component (120) is smaller than the rope diameter (R2) of the rope component (110) located outside the resin component (120).

9. The belt structure according to claim 8, characterized in that: The resin component (120) has a through hole (122), One end portion of the rope component (110) in the length direction (L) is closely arranged with the through hole (122) and is exposed to the outside from the through hole (122).

10. The belt structure according to claim 8 or 9, characterized in that: The rope diameter (R1) of the rope component (110) located inside the resin component (120) is less than 60% of the rope diameter (R2) of the rope component (110) located outside the resin component (120).

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