Surf Leash Cuff and Surf Leash Assembly

The integrally molded surf leash cuff addresses manufacturing complexity and safety risks by improving connection strength and simplifying assembly, ensuring secure and rapid detachment.

JP2026035839AActive Publication Date: 2026-03-04NANTONG SHAKAMMA SPORTS GOODS CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-12-04
Publication Date
2026-03-04

AI Technical Summary

Technical Problem

Conventional surf leash cuffs have complex manufacturing processes and weak connections that can detach under stress, posing safety risks, especially during emergency removal.

Method used

An integrally molded surf leash cuff with enhanced bonding strength between the cuff body, cord connection, and pull tab, featuring a simplified assembly process and improved connection durability.

Benefits of technology

The integrally molded design increases connection strength and simplifies assembly, enhancing user safety by preventing detachment and facilitating quick removal in emergencies.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a surf leash cuff which can be manufactured easily and in which a cord connection part is not easily detached from the cuff. [Solution] The surf leash cuff (1) is a cuff body (11), which includes a first section (111), a second section (112), and a pull tab (113), the first section being connected to a first end of the second section, a first cord connection section (1111) being provided on the outer surface of the first section, and a second end of the second section being connected to the pull tab, and the cuff body is integrally molded. The cuff body includes a cuff body, a first fixing member fixed to the first section of the cuff body, and a second fixing member fixed to the second section of the cuff body, the second fixing member being detachably connected to the first fixing member, and the cuff body has an integrally molded structure.
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Description

[Technical Field]

[0001] The present invention relates to the field of surf leashes, and more particularly to surf leash cuffs and surf leash assemblies. [Background technology]

[0002] In surfing, a surf leash assembly is used to connect a surfboard to a surfer's body. Therefore, the surf leash assembly plays an important role in ensuring the surfer's safety. A conventional surf leash assembly generally includes a surf leash cuff, a cord (rope), and a board connection member, with the surf leash cuff and the board connection member connected to both ends of the cord. In use, the surf leash cuff is worn around the surfer's ankle, wrist, arm, leg, or other part of the body, and the board connection member is attached to the surfboard.

[0003] Conventional surf leash cuffs consist of a cuff body made primarily of fabric and two fastening members at both ends. A plastic cord connection and pull tab are fixed to the outside of the cuff body. Assembling the cuff requires sequential assembly of the cuff body, cord connection, pull tab, and fastening member, resulting in a complex manufacturing process. Furthermore, because the strength of the connections between each component is not guaranteed, applying a large force to the cord connection during use can cause the cord connection to come detached from the cuff, potentially posing a serious risk to the user's safety.

[0004] Furthermore, in an emergency when the Surf Leash Cuff needs to be quickly removed, a large amount of force is applied to the pull tab. However, if the pull tab itself comes off the cuff, the Surf Leash Cuff cannot be smoothly removed, which can also have a serious impact on the life and safety of the user.

[0005] The above description of the background art is provided to facilitate understanding of the background of the present invention, and may include techniques known to those skilled in the art. Summary of the Invention [Means for solving the problem]

[0006] The present invention provides a surf leash cuff and surf leash assembly that includes an integrally molded cuff body, thereby increasing the bonding strength between the main portion of the cuff body, the first cord connection portion, and the pull tab, and simplifying the assembly process.

[0007] One embodiment of the present invention provides a surf leash cuff, which includes a cuff body including a first section, a second section, and a pull tab, the first section being connected to a first end of the second section, the first section having a first cord connection portion on an outer surface thereof, and a second section being connected to the pull tab at a second end thereof, the cuff body being integrally molded; a first fastening member secured to the first section of the cuff body; and a second fastening member secured to the second section of the cuff body and separably connected to the first fastening member.

[0008] In some embodiments, a first end of the first fixation member is fixed to an end of the first section of the cuff body remote from the second section.

[0009] In some embodiments, the cuff further comprises a contact member, the contact member being at least partially disposed in intimate contact with the first section of the cuff body and the inner surface of the first fixation member.

[0010] In some embodiments, the inner surface of the contact member is provided with an anti-slip structure.

[0011] In some embodiments, when the first fixation member and the second fixation member are connected, an end of the second fixation member at least partially covers a first end of the first fixation member, and a second end of a second section of the cuff body at least partially covers a first end of the first section.

[0012] In some embodiments, the first section, second section, first cord connection portion and pull tab of the cuff body are formed in a single molding process.

[0013] In some embodiments, each component of the cuff body is obtained from the same molding apparatus.

[0014] In some embodiments, the first stage is pre-curved and / or the second stage is at least partially flexible.

[0015] In some embodiments, the second fastening member is at least partially disposed against the inner surface of the second section of the cuff body.

[0016] In some embodiments, the second section of the cuff body defines a longitudinally extending opening that exposes at least a portion of an outer surface of the second fixation member.

[0017] In some embodiments, the second section of the cuff body includes a first arm and a second arm extending longitudinally, with the opening formed therebetween, and opposite ends of the pull tab connected to the first arm and the second arm, respectively.

[0018] In some embodiments, the second section of the cuff body includes a connecting portion and an intermediate arm, a first end of the intermediate arm is connected to the first section of the cuff body via the connecting portion, a second end of the intermediate arm is provided on the pull tab, and a width of the intermediate arm is smaller than a width of the first section of the cuff body.

[0019] In some embodiments, after the cuff is applied to a body part, the insertion direction of the pull tab is parallel to or perpendicular to the longitudinal direction of the body part.

[0020] In some embodiments, the cuff body is formed entirely from a thermoplastic polyurethane elastomer material.

[0021] An embodiment of the present invention also provides a surf leash assembly including the surf leash cuff described above, a cord including a second cord connection portion and a third cord connection portion, the second cord connection portion being connected to the first cord connection portion of the cuff, a board connection member connected to the third cord connection portion, and a leash string detachably connected to the board connection member.

[0022] In some embodiments, the board connection member includes a board connection body including a fourth cord connection portion and a first support portion, the fourth cord connection portion being connected to the third cord connection portion, and the board connection body being a single-piece molded product; and a fixing portion, the fixing portion being at least partially provided on one side of the first support portion and connected to the leash string.

[0023] In some embodiments, the fixing component includes a third fixing member, a connecting strap, and a fourth fixing member, the third fixing member is provided on one side of the first support part, one end of the fourth fixing member is connected to a first end of the third fixing member via the connecting strap, a first surface of the fourth fixing member is detachably connected to a surface of the third fixing member, and the leash string is attached to the outer periphery of the connecting strap.

[0024] The board connection body further includes a second support portion, which is integrally formed with the first support portion and disposed outside the connecting strap.

[0025] In some embodiments, the board connection member further includes a fifth fixing member, one end of the fifth fixing member connected to a second end of the third fixing member, and a surface of the fifth fixing member detachably connected to a second surface of the fourth fixing member.

[0026] In some embodiments, both the first support portion and the second support portion are flexible and / or the width of the second support portion is smaller than the width of the first support portion.

[0027] In some embodiments, the board connection bodies are formed in a single molding step and / or obtained from the same molding apparatus.

[0028] In some embodiments, the board connection body is formed from a thermoplastic polyurethane elastomer material.

[0029] The surf leash cuff and surf leash assembly of the present invention have the following advantages:

[0030] By adopting an integrally molded cuff body, the bonding strength between the main part of the cuff body, the first cord connecting part, and the pull tab is increased, and the assembly process is simplified, resulting in a surf leash assembly with higher safety in use.

[0031] Other features, objects and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments of the invention, which is given with reference to the accompanying drawings. [Brief explanation of the drawings]

[0032] [Figure 1] FIG. 1 is a structural diagram of a surf leash assembly according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a diagram showing the connection structure of the surf leash cuff and the cord according to the first embodiment of the present invention. [Figure 3] FIG. 3 is a structural diagram of a surf leak cuff according to the first embodiment of the present invention. [Figure 4] FIG. 4 is an outer side view of the surf leak cuff in the deployed state according to the first embodiment of the present invention. [Figure 5] FIG. 5 is an exploded view of the surf leash cuff according to the first embodiment of the present invention. [Figure 6] FIG. 6 is an inner side view of the surf leak cuff in the deployed state according to the first embodiment of the present invention. [Figure 7] FIG. 7 is a structural diagram of the board connecting member according to the first embodiment of the present invention. [Figure 8] FIG. 8 is a diagram of the board connecting member in the unfolded state according to the first embodiment of the present invention. [Figure 9] FIG. 9 is an exploded view of the board connecting member according to the first embodiment of the present invention. [Figure 10] FIG. 10 is a diagram showing a connection structure between a board connecting member and a cord according to the first embodiment of the present invention. [Figure 11] FIG. 11 is a structural diagram of a surf leash cuff body according to a second embodiment of the present invention, which has a different pull tab shape. [Figure 12] FIG. 12 is a structural diagram of a surf leash cuff body according to a second embodiment of the present invention, which has a different pull tab shape. [Figure 13] FIG. 13 is a structural diagram of a surf leash cuff body according to a second embodiment of the present invention, which has a different pull tab shape. [Figure 14] FIG. 14 is a structural diagram of a surf leak cuff according to a third embodiment of the present invention. [Figure 15] FIG. 15 is a structural diagram of a surf leak cuff according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0033] Examples of embodiments will be described in more detail below with reference to the accompanying drawings. However, these embodiments may be implemented in various forms and should not be limited to the embodiments described herein. Rather, the disclosure of these embodiments is intended to provide a comprehensive and complete understanding of the present invention and to fully convey the concept to those skilled in the art. The same reference numerals in the figures indicate identical or similar structures, and redundant description thereof will be omitted. The terms "or" and "alternate" may also be used to include "and" where necessary. Terms such as "above," "below," and "between" are used herein to describe different exemplary features or components of the present invention; however, these terms are merely used for convenience based on the orientation of the illustrations and do not imply that the scope of the present invention is limited to any particular three-dimensional orientation. Furthermore, terms such as "first" and "second" are used for convenience in the description and do not limit the quantity or importance of those features.

[0034] As shown in Figures 1 and 2, a first embodiment provides a surf leash cuff 1 and a surf leash assembly including the cuff 1. The surf leash assembly includes the surf leash cuff 1, which is attached to the human body, a cord 2, and a board connection member 3 and leash string 4, which are connected to a surfboard. Both ends of the cord 2 are connected to the surf leash cuff 1 and the board connection member 3, respectively. In use, the surf leash cuff 1 is attached to a part of the human body, such as the ankle, wrist, arm, or leg, and the board connection member 3 is connected to the surfboard via the leash string 4. The surf leash cuff 1 includes a cuff body 11, a first fastening member 12, and a second fastening member 13. The first fastening member 12 and the second fastening member 13 are provided on both ends of the cuff body 11, and by connecting these members, the cuff 1 forms a ring-shaped structure that can be attached to a part of the human body.

[0035] As shown in FIGS. 2 to 6 , the cuff body 11 includes a first section 111, a second section 112, and a pull tab 113. The first section 111 has a first end and a second end, and the second section 112 also has a first end and a second end. The first end of the first fixing member 12 is fixed to the first end of the first section 111, and the second end of the first fixing member 12 corresponds to its terminal end. The second end of the first section 111 is connected to the first end of the second section 112. In another embodiment, the first fixing member 12 may be bonded to the first section 111 so as to partially overlap the first section 111. A first cord connection portion 1111 is provided on the outside of the first section 111 and protrudes outward from the outer surface of the first section 111. A second cord connection portion 21 is provided at one end of the cord 2 and is a part made of, for example, a metal member or another material having high hardness. The first cord connection portion 1111 is fixedly connected to the second cord connection portion 21. In this embodiment, the first cord connection portion 1111 is provided with a first pin hole 1112, and the second cord connection portion 21 is provided with a second pin hole 211. The second cord connection portion 21 is insertable into the first cord connection portion 1111, and a fixing pin passing through the first pin hole 1112 and the second pin hole 211 is used to fixedly connect the first cord connection portion 1111 and the second cord connection portion 21. The second cord connection portion 21 is rotatable relative to the end of the cord 2, thereby forming a rotatable connection between the cord 2 and the cuff 1. While one example of a connection between the first cord connection portion 1111 and the second cord connection portion 21 is shown in this specification, the present invention is not limited thereto. In other embodiments, other connection methods may be employed, such as a second cord connection portion made of a plastic member having a hole at its end, rather than metal, and the first cord connection portion being inserted into the second cord connection portion.

[0036] At least a portion of the second fastening member 13 is affixed to the inside of the second section 112, and a first end of the second fastening member 13 is affixed to a position adjacent to the first section 111. The second end of the second fastening member 13 corresponds to its terminal end. In another embodiment, the second fastening member 13 may be affixed to the outside of the second section 112 so as to partially overlap the second end of the second section 112. The outside of the second end of the second section 112 is connected to the pull tab 113. The cuff body 11 is an integrally molded component; that is, the first section 111, the second section 112, the first cord connection portion 1111, and the pull tab 113 are molded as an integral structure. Furthermore, they are obtained by a single molding process. Because the first section 111, the second section 112, the first cord connection portion 1111, and the pull tab 113 are formed using the same molding device, manufacturing the cuff body 11 is very easy. This significantly improves the production efficiency of the cuff body 11. The molding device may be an injection molding machine, in which a cavity is formed in a molding die, and a thermoplastic polyurethane elastomer material is injected into this cavity, thereby obtaining the cuff body 11 in a single injection molding process.

[0037] The outer surface 121 of the first fixing member 12 and the inner surface 131 of the second fixing member 13 can form a separable connection. For example, both the first fixing member 12 and the second fixing member 13 can be configured in the form of a hook-and-loop fastener (Velcro). The outer surface 121 of the first fixing member 12 can be a loop surface and the inner surface 131 of the second fixing member 13 can be a hook surface, or vice versa, where the first fixing member 12 has a hook surface and the second fixing member 13 has a loop surface. In other embodiments, the first fixing member 12 and the second fixing member 13 can adopt other connection structures, such as a button connection, a snap connection, or a screw connection. For example, a configuration in which the first fixing member 12 is a button and the second fixing member 13 is a buttonhole is also included.

[0038] To use the Surfleash cuff 1, first wrap the cuff body 11 around a predetermined part of the human body. Then, the outer surface 121 of the first fastening member 12 and the inner surface 131 of the second fastening member 13 are bonded together to form the Surfleash cuff 1 into a ring shape, completing the attachment to the human body. When the first fastening member 12 and the second fastening member 13 are connected, the end (second end) of the second fastening member 13 at least partially covers the first end of the first fastening member 12, and further, the second end of the second section 112 of the cuff body 11 at least partially covers the first end of the first section 111, thereby forming a ring-shaped structure that envelops the human body part 360 degrees. Therefore, when a force is applied to the first cord connection portion 1111, the force is distributed throughout the cuff body 11 and further distributed throughout the entire integrally molded ring-shaped structure of the cuff 1. When it is necessary to quickly remove the surf leash cuff 1 from the human body, the second fixing member 13 and the first fixing member 12 are separated by hooking a finger on the pull tab 113 and pulling it up, and the surf leash cuff 1 can be quickly removed from the human body.

[0039] In the present invention, the "inside" and "outside" of each component of the Surf Leash Cuff 1 are defined based on the part of the human body on which it is worn during use. That is, when the Surf Leash Cuff 1 is worn on the human body, the inside of the component refers to the side closer to the human body, and the outside refers to the side farther from the human body. Furthermore, the "length direction" and "width direction" of the Surf Leash Cuff 1 refer to the length direction and width direction, respectively, of the cuff 1 when it is deployed. As shown in Figure 4, direction D1 indicates the length direction of the cuff 1, and direction D2 indicates the width direction of the cuff 1.

[0040] In the present invention, by forming cuff body 11 into an integrally molded structure, the connection strength between the main portions of cuff body 11 (the arc-shaped portion of first section 111 and second section 112), first cord connection portion 1111, and pull tab 113 is improved. Both first cord connection portion 1111 and pull tab 113 can withstand large external forces. This significantly increases the connection strength between first cord connection portion 1111 and cord 2 when surf leash cuff 1 is in use. Furthermore, the connection strength between pull tab 113 and second section 112 of cuff body 11 is also improved, ensuring high overall safety. Furthermore, the assembly process for surf leash cuff 1 requires only connecting cuff body 11 to first fastening member 12 and second fastening member 13. There is no need to attach first cord connection portion 1111 and pull tab 113 separately. This significantly simplifies the assembly process and significantly improves manufacturing efficiency.

[0041] In this embodiment, the cuff body 11 may be integrally injection molded using a TPU (thermoplastic polyurethane elastomer) material. The entire cord 2 may also be made of a TPU material. However, the present invention is not limited to this. The cuff body 11 and the cord 2 may also be made of other types of materials that have high strength and a certain degree of flexibility. For example, the cuff body 11 and / or the cord 2 may be made of other materials such as PVC (polyvinyl chloride) or TPE (thermoplastic elastomer).

[0042] Conventional surf leash cuffs 1 generally have a flat structure during manufacturing, and while they are generally circular when worn on the body, they exhibit an irregular shape. In particular, the location of the cord connection portion is highly rigid, and the surface of that portion remains flat, resulting in a problem of the cuff body not fitting well to the curved surface of the body. In contrast, in this embodiment, as shown in FIG. 3 , the first section 111 is pre-formed into an arc shape. This allows the entire first section 111 to form an arc shape when the cuff 1 is wrapped around a body part. Furthermore, the second section 112 is at least partially flexible, allowing the entire surf leash cuff 1 to better adapt to the curvature of the user's body surface and form an arc shape that fits the body surface over a 360-degree range. Both the arc-shaped portion of the first section 111 and the second section 112 are relatively thin and have good flexibility, making them easy to bend and adjust the shape. In contrast, the first cord connection portion 1111 has a certain thickness and rigidity, allowing for more stable attachment to the cord 2. In other alternative embodiments, the first stage 111 may be generally planar in shape and have good flexibility, and still fall within the scope of the present invention.

[0043] As shown in FIG. 5 , in this embodiment, the second section 112 of the cuff body 11 has an opening 1123 extending along its length. A reinforcing tape may be provided on the outer surface of the second fastening member 13, with the reinforcing tape at least partially exposed through the opening 1123. The reinforcing tape may be made of a thin, high-strength fiber material and serves to reinforce a portion of the structure of the second fastening member 13. Alternatively, the second section 112 of the cuff body 11 may not have a reinforcing tape on its outer surface, and only a portion of the outer surface of the second fastening member 13 may be exposed through the opening 1123. Specifically, the second section 112 of the cuff body 11 includes a first arm 1121 and a second arm 1122 extending along its length, with the opening 1123 formed between them. The opening 1123 provides the second section 112 with improved flexibility and allows it to fit more easily to the surface of the human body during use. The provision of the opening 1123 also contributes to a reduction in overall weight of the surf leash cuff 1. In this embodiment, the opening 1123 is formed as a single rectangular slit, but in other embodiments, the opening 1123 may have other shapes, such as a lattice structure or a structure in which multiple horizontal or vertical slits are arranged in parallel.

[0044] Conventional pull tab manufacturing methods generally involve preparing a fabric or plastic tape-like material, forming it into a ring, and sewing the tape to the end of the fixing member with a sewing thread to form the pull tab. Such pull tabs rely on the bonding strength of the sewing thread, limiting their connection strength with the cuff body. Furthermore, the width of the pull tab insertion hole is very narrow, making it difficult for the user to accurately insert their finger into the space between the pull tab and the fabric. Fabric pull tabs lack stiffness and easily deform, making it difficult for them to maintain their ring shape. As a result, the insertion hole may become even narrower due to deformation. On the other hand, plastic pull tabs can alleviate the deformation problem to some extent, but their connection strength with the fixing member remains low, posing a risk of the pull tab becoming detached from the cuff body when force is applied during use. Furthermore, conventional pull tabs require separate processing and connection processes, resulting in a complex manufacturing process. In this embodiment, the pull tab 113 is integrally molded with the second section 112 of the cuff body, and both ends of the pull tab 113 are connected to the first arm 1121 and the second arm 1122, respectively. This allows the overall width of the pull tab 113 to be wide, allowing the user to easily insert their fingers into the pull tab 113 and pull it up without exerting force, greatly improving convenience in use.

[0045] As shown in FIGS. 3 to 6 , in this embodiment, the Surf Leash cuff 1 further includes a contact member 14 to enhance the user experience and increase the friction between the inside of the Surf Leash cuff 1 and the surface of the human body. At least a portion of the contact member 14 is attached to the inside of the first section 111 of the cuff body 11 and the first fastening member 12. When the Surf Leash cuff 1 is worn on the outside of a human body part, the contact member 14 directly contacts the surface of the human body. The inner surface of the contact member 14 is preferentially provided with anti-slip irregularities. For example, the illustrated anti-slip pattern may be a vertical stripe pattern, or a dotted pattern, a diagonal line pattern, or a combination of multiple patterns. The contact member 14 is preferably made of a material with shock absorption properties, such as a neoprene rubber sponge. This allows the user to enjoy a more comfortable fit and a stable fixation. In other embodiments, the contact member 14 may be made of other materials, such as EVA (ethylene-vinyl acetate copolymer), silicone, or TPE (thermoplastic elastomer).

[0046] As shown in FIGS. 4 to 6 , in this embodiment, the first fixing member 12, the second fixing member 13, the cuff body 11, and the contact member 14 have approximately the same width, giving the entire surf leash cuff 1 a streamlined appearance and making it easier to put on and use. Furthermore, the alignment of each component during assembly is also easy. "Almost the same width" means that even if there is a slight difference in the width of these components, it does not affect the overall streamlined appearance. The present invention is not limited to this; in other embodiments, the widths of each component may be different, and are set appropriately depending on the application. For example, in another alternative embodiment, the widths of the contact member 14 on both sides are designed to be 1 mm (or 2 mm, 1.5 mm, etc.) wider than the cuff body 11, the first fixing member 12, and the second fixing member 13. This prevents the edge of the plastic portion of the cuff body 11 from directly contacting the human body and also prevents the hard, thin edges of the hook surfaces of the first fixing member 12 or the second fixing member 13 from hitting the human body. Even with this configuration, the overall streamlined appearance is hardly affected. In yet another embodiment, a portion of the edge of the cuff body 11 may be slightly recessed inward to form a groove, making the width of the cuff body 11 smaller than the contact member 14 by a certain amount (e.g., 1 mm, 2 mm, 1.5 mm, etc.). When assembling the surf leash cuff 1, one end of the first fastening member 12 is aligned with a first end of the first section 111 of the cuff body 11, and the contact member 14 is attached to the inside of the first section 111 and the first fastening member 12. The second fastening member 13 is attached to the inside of the second section 112 of the cuff body 11, and then the first fastening member 12, the second fastening member 13, the cuff body 11, and the contact member 14 are integrally secured together with sewing thread. In other embodiments, these members may be secured together by adhesive, stapling, or a combination of multiple methods. For example, the first fastening member 12 and the second fastening member 13 may be secured to the cuff body 11 with sewing thread, and the cuff body 11 and the contact member 14 may be secured together with adhesive. The dotted lines in Figures 4 and 6 indicate sewing threads. Therefore, the assembly process for the Surf Leash Cuff 1 is simple, allowing for more efficient and rapid manufacturing. Furthermore, as shown in Figures 4 and 6, the entire Surf Leash Cuff 1 has a beautiful, streamlined appearance.

[0047] As shown in FIGS. 7 to 10 , in this embodiment, a third cord connection portion 22 is provided at the other end of the cord 2, and the board connection member 3 is connected to the third cord connection portion 22. The leash string 4 is detachably connected to the board connection member 3. When attaching the board connection member 3 to a surfboard, the leash string 4 is fixedly connected to both the board connection member 3 and the surfboard. In other embodiments, the leash string 4 may be fixedly connected to the board connection member 3, and the two may not be detachable. Conventional board connection members 3 generally have a method in which the cord connection portion and the main body portion are molded separately and then fastened together afterwards. However, this method poses a significant safety risk, as the cord connection portion may unintentionally detach from the main body portion (first support portion 312) of the board connection member 3 during use. Furthermore, the assembly process for conventional board connection members 3 is relatively complicated, resulting in low production efficiency. To address this issue, a new board connection member 3 is proposed in this embodiment, which has the advantage of preventing accidental separation of the cord connection portion and the main body portion (first support portion 312) of the board connection member 3, as well as simplifying the assembly process.

[0048] As shown in FIGS. 7 to 9 , in this embodiment, the board connection member 3 includes a board connection portion main body 31 and a fastening component. The board connection portion main body 31 includes a fourth cord connection portion 311 and a first support portion 312, and the fourth cord connection portion 311 is connected to the third cord connection portion 22 of the cord 2. The board connection portion main body 31 is an integrally molded part. The board connection portion main body 31 may be made of a TPU (thermoplastic polyurethane elastomer) material, but the present invention is not limited thereto. Other materials having high strength and a certain degree of flexibility can also be used to manufacture the board connection member 3. The first support portion 312 is a constituent element for supporting the fastening component. Specifically, at least a portion of the fastening component is disposed on one side of the first support portion 312, and the fastening component is connected to the leash string 4.

[0049] In the present invention, the length direction and width direction of the board connection member 3 refer to the length direction and width direction, respectively, when the board connection member 3 is unfolded. As shown in Fig. 9, the D3 direction is the length direction of the board connection member 3, and the D4 direction is the width direction.

[0050] 8 and 9, in this embodiment, the fixing component includes a third fixing member 32, a second connecting strap 36, and a fourth fixing member 33. The third fixing member 32 is attached to one side of the first support part 312, and one end of the fourth fixing member 33 is connected to a first end of the third fixing member 32 via the second connecting strap 36. A first surface of the fourth fixing member 33 is detachably connected to a surface of the third fixing member 32. The board connection part main body 31 further includes a second supporting part 313, which is integrally molded with the first supporting part 312 and disposed outside the second connecting strap 36. In this embodiment, both the first support portion 312 and the second support portion 313 have a certain degree of flexibility, and the width of the second support portion 313 is set smaller than the width of the first support portion 312. Therefore, the second support portion 313 is more flexible than the first support portion 312, can be bent more easily, and can be easily connected to the leash string 4.

[0051] In this embodiment, the board connection part body 31 is manufactured through a single molding process. The fourth cord connection part 311, the first support part 312, and the second support part 313 of the board connection part body 31 are formed using the same molding device. Therefore, the board connection part body 31 is extremely easy to manufacture and can be obtained through a single molding process, which significantly improves production efficiency. The molding device may be an injection molding machine, in which a cavity is formed in a mold, and a thermoplastic polyurethane elastomer material is injected into the cavity of the mold to obtain the board connection part body 31 through a single injection molding process. In other embodiments, the board connection part body 31 can be manufactured using other materials such as PVC (polyvinyl chloride) or TPE (thermoplastic elastomer).

[0052] The third fixing member 32 and the fourth fixing member 33 may be connected by hook-and-loop fasteners (Velcro). The outer surface of the third fixing member 32 opposite the first support portion 312 and the first surface of the fourth fixing member 33 may form a hook-and-loop fastener connection. For example, the outer surface of the third fixing member 32 may be a loop surface and the first surface of the fourth fixing member 33 may be a hook surface, or vice versa, with the third fixing member 32 being a hook surface and the fourth fixing member 33 being a loop surface. In other embodiments, the third fixing member 32 and the fourth fixing member 33 may be connected by other structures, such as buttons, snap buttons, or screw connections. For example, a configuration in which the third fixing member 32 is a button and the fourth fixing member 33 is a buttonhole is also included. The second connecting strap 36 may be made of fabric and is used to connect the ends of the third fixing member 32 and the fourth fixing member 33. The leash string 4 is attached by fitting it onto the outside of the second connecting strap 36. The inner surface of the second connecting strap 36 is preferably smooth, which can prevent wear on the leash string 4. The leash string 4 may be made of a cloth cord or a loop-shaped member made of other materials.

[0053] As shown in FIGS. 8 and 9 , the board connection member 3 further includes a fifth fixing member 34 to further improve the connection strength between the board connection member 3 and the leash string 4. One end of the fifth fixing member 34 is connected to the second end of the third fixing member 32, and a surface of the fifth fixing member 34 is separably connected to the second surface of the fourth fixing member 33. For example, the inner surface of the fifth fixing member 34 facing the fourth fixing member 33 may be a loop surface, and the second surface of the fourth fixing member 33 may be a hook surface, or vice versa, the fifth fixing member 34 may be a hook surface and the second surface of the fourth fixing member 33 may be a loop surface. As shown in FIG. 9 , the third fixing member 32 and the fifth fixing member 34 may be formed from a single hook-and-loop fastener. When assembling the board connection member 3, the fifth fixing member 34, the third fixing member 32, the second connecting strap 36, and the fourth fixing member 33 form a continuous tape. After being positioned in a predetermined position on the board connection body 31, the components are sewn together with sewing thread. The dashed lines in FIG. 8 represent sewing threads. Therefore, the assembly method of this board connecting member 3 is simpler. Furthermore, because the fourth cord connecting portion 311, the first support portion 312, and the second support portion 313 are integrally molded, the connection strength between the fourth cord connecting portion 311 and the first support portion 312 is improved, preventing unintentional separation between them. When attaching the leash string 4 to the fixing component, first, the leash string 4 is passed through the fourth fixing member 33 and fitted onto the outside of the second connecting strap 36. Then, the first surface of the fourth fixing member 33 is connected to the outer surface of the third fixing member 32 with a hook-and-loop fastener. Next, the inner surface of the fifth fixing member 34 is connected to the second surface of the fourth fixing member 33. To remove the leash string 4, first disconnect the inner surface of the fifth fixing member 34 from the second surface of the fourth fixing member 33, then disconnect the first surface of the fourth fixing member 33 from the outer surface of the third fixing member 32, and remove the leash string 4 from the end of the fourth fixing member 33.

[0054] 9 and 10 , this embodiment shows a method of connecting the third cord connection portion 22 and the fourth cord connection portion 311. A first cloth connecting strap 35 is inserted into the third pin hole 221 of the third cord connection portion 22. Then, both ends of the first connecting strap 35 are aligned and inserted together into the through-hole 3111 of the fourth cord connection portion 311. The ends of the first connecting strap 35 reach the first support portion 312, and the first connecting strap 35 and the first support portion 312 are secured together with sewing thread. After the third fixing member 32 and the fifth fixing member 34 are secured to the first support portion 312, the third fixing member 32 is positioned to cover the surface of the first connecting strap 35. The method of connecting the cord 2 and the board-connecting member 3 shown here is merely an example. In other embodiments, other connection structures, such as the first cord connection portion 1111 and the second cord connection portion 21, may be used, and all of these are within the scope of protection of the present invention. In one embodiment, the first connecting strap 35 and the second connecting strap 36 may be made of the same tape-like fabric, and the first connecting strap 35 is inserted into the through hole 3111 of the fourth cord connecting portion 311, and then extended to the position of the second support portion 313 and connected to the fourth fixing member 33, functioning as the second connecting strap 36. In another embodiment, the first connecting strap 35 and the second connecting strap 36 may be made of two different cloth straps.

[0055] FIGS. 11 to 13 show the structure of a cuff body of a surf leash cuff according to a second embodiment of the present invention. This embodiment is characterized by a difference in the structure of the second section 112 of the cuff body 11 and the pull tab 113 compared to the first embodiment shown in FIGS. 1 to 10. In the second embodiment, the second section 112 of the cuff body 11 includes a transition section 1125 and an intermediate arm 1124. A first end of the intermediate arm 1124 is connected to the first section 111 of the cuff body 11 via the transition section 1125. Specifically, the transition section 1125 is connected to the center of the first section 111 in the width direction. A pull tab 113 is provided at a second end of the intermediate arm 1124. The width of the intermediate arm 1124 is smaller than the width of the first section 111 of the cuff body 11. For example, a configuration in which the width of the intermediate arm 1124 is 1 / 2 or 1 / 3 of the width of the first section 111 is also included. In the second embodiment, the width of the second section 112 is narrowed to increase its flexibility, and the device is designed to fit more easily to the curved surface of the human body when worn.

[0056] 11, 12, and 13 illustrate three different shapes of pull handle 113. The shape of pull handle 113 may be a sector as shown in FIG. 11, a diamond as shown in FIG. 12, a circle as shown in FIG. 13, or other shapes such as a triangle or a trapezoid. The shape of transition portion 1125 may or may not match the shape of pull handle 113.

[0057] 14 and 15 show the cuff body structure of a surf leash cuff according to a third embodiment of the present invention. Similar to the second embodiment, this third embodiment has a second section 112 of a cuff body 11 including a transition section 1125 and an intermediate arm 1124. A first end of the intermediate arm 1124 is connected to the widthwise center of the first section 111 of the cuff body 11 via the transition section 1125. Furthermore, this third embodiment is characterized by a different insertion direction of the pull tab hole compared to the first embodiment.

[0058] The pull tab 113 can be used in three different scenarios. In the first scenario, a user puts on the cuff 1 before surfing and removes it after surfing. In this scenario, the user has a relatively ample amount of time and is highly focused, so the user can easily find the insertion hole of the pull tab 113 and insert a finger. In the second scenario, a user participates in multiple different sports and needs to move on to the next sport immediately after finishing a surfing competition. In such a scenario, quick removal is extremely important. Therefore, it is important for the user to be able to quickly find the insertion hole of the pull tab 113, insert a finger, and remove the cuff 1. In the third scenario, a user encounters a dangerous situation while surfing. In such a situation, even if the user's attention is distracted, the user needs to quickly find the insertion hole of the pull tab 113, insert a finger, and remove the cuff 1. The ease of use of the pull tab 113 is directly related to the safety of the cuff 1 in such an emergency.

[0059] As shown in FIGS. 1 to 3, in the first embodiment, after the cuff 1 is worn on a human body part, the insertion direction of the hole of the pull tab 113 is perpendicular to the longitudinal direction of the human body part. Here, the "hole insertion direction" refers to the direction in which a user inserts their finger into the hole of the pull tab 113 when operating the pull tab 113. For example, when the cuff 1 is worn on the ankle, the insertion direction of the hole of the pull tab 113 is perpendicular to the longitudinal direction of the leg. In the cuff 1 structure of the first embodiment, such a perpendicular insertion setting may make it difficult for the user to quickly find the insertion hole, and may not fully meet the needs, particularly in the second or third usage scenario described above.

[0060] For this reason, in the third embodiment, the structure of the pull tab 113 is further improved. As shown in Figures 14 and 15, in the third embodiment, after the cuff 1 is attached to a body part, the insertion direction of the hole of the pull tab 113 is parallel to the longitudinal direction of the body part. For example, when the cuff 1 is attached to the ankle, the insertion direction of the hole of the pull tab 113 is parallel to the longitudinal direction of the leg. With this configuration, even in situations where the user needs to quickly separate from the surfboard, the insertion hole can be quickly found without consciously changing the orientation of the fingers, and the cuff 1 can be quickly removed from the body part, further improving safety.

[0061] The above description is a more detailed explanation based on specific preferred embodiments of the present invention, and the specific implementation of the present invention is not limited to these descriptions. Those skilled in the art to which the present invention pertains can make various simple modifications and substitutions without departing from the spirit of the present invention, and it should be understood that all of these are included in the technical scope of the present invention. [Explanation of symbols]

[0062] 1: Cuff 11: Cuff body 111:First stage 1111: First cord connection 1112: First pin insertion hole 112:Second stage 1121: First Arm 1122: Second Arm 1123: Opening 1124: Intermediate arm 1125: Connection 113: Pull handle 12: First fixing member 121: Outer surface of first fixing member 13: Second fixing member 131: Inner surface of second fixing member 14: Contact member 141:Inside 2: Code 21: Second cord connection part 211: Second pin insertion hole 22: Third cord connection part 221: Third pin insertion hole 3: Board connection parts 31: Board connection body 311: Fourth cord connection 3111:Through hole 312:First support part 313:Second support part 32: Third fixing member 33: Fourth fixing member 34: Fifth fixing member 35: First connecting strap 36: Second connecting strap 4: Leash string

Claims

1. A surf leash cuff, a cuff body including a first section, a second section, and a pull tab, the first section being connected to a first end of the second section, the first section having a first cord connection portion on an outer surface thereof, and the second section having a second end connected to the pull tab, the cuff body being a unitary molded part; a first fixing member fixed to the first section of the cuff body; a second fixing member fixed to a second section of the cuff body, the second fixing member being detachably connected to the first fixing member; A surf leash cuff comprising:

2. a first end of the first fixing member fixed to an end of the first section of the cuff body remote from the second section; 2. The surf leash cuff of claim 1, further comprising a contact member attached to at least the first section of the cuff body and a portion of the inner side of the first fastening member.

3. 3. The surf leash cuff of claim 2, wherein when the first and second fastening members are connected, an end of the second fastening member at least partially covers a first end of the first fastening member, and a second end of the second section of the cuff body at least partially covers a first end of the first section.

4. 2. The surf leash cuff of claim 1, wherein the first section, the second section, the first cord connection portion, and the pull tab of the cuff body are obtained in a single molding process, and / or the first section, the second section, the first cord connection portion, and the pull tab of the cuff body are obtained using the same molding device.

5. the first section is pre-formed into a curved shape and / or the second section is at least partially flexible; The surf leash cuff of claim 1, wherein the second fastening member is at least partially attached to an inner surface of the second section of the cuff body.

6. The second section of the cuff body has an opening extending longitudinally therethrough; The surf leash cuff of claim 1, wherein the second section of the cuff body includes a first arm and a second arm extending along the length thereof, the opening is formed between the first arm and the second arm, and both ends of the pull tab are connected to the first arm and the second arm, respectively.

7. 2. The surf leash cuff of claim 1, wherein the second section of the cuff body includes a transition section and an intermediate arm, a first end of the intermediate arm is connected to the first section of the cuff body via the transition section, the pull tab is provided on a second end of the intermediate arm, and the width of the intermediate arm is smaller than the width of the first section of the cuff body.

8. 2. The surf leash cuff of claim 1, wherein after the surf leash cuff is attached to a body part, the insertion direction of the pull tab hole is parallel to or perpendicular to the length direction of the body part.

9. 10. The surf leash cuff of claim 1, wherein the entire cuff body is constructed from a thermoplastic polyurethane elastomer material.

10. 1. A surf leash assembly comprising: A surf leash cuff according to any one of claims 1 to 9, a cord including a second cord connection portion and a third cord connection portion, the second cord connection portion being connected to the first cord connection portion of the surf leash cuff; a board connection member connected to the third cord connection portion of the cord; a leash string connected to the board connecting member; 1. A surf leash assembly comprising:

11. The board connection member is a board connection body including a fourth cord connection portion, a first support portion, and a second support portion, wherein the fourth cord connection portion is connected to a third cord connection portion of the cord, and the board connection body is an integrally molded part; a fixing component provided on at least one side of the first support portion, the fixing component being connected to the leash string; Including, the fixing component includes a third fixing member, a connecting strap, and a fourth fixing member, the third fixing member being attached to one side of the first support part, one end of the fourth fixing member being connected to a first end of the third fixing member via the connecting strap, a first surface of the fourth fixing member being detachably connected to a surface of the third fixing member, the leash string being attached to the outside of the connecting strap, and the second support part being provided on the outside of the connecting strap; 11. The surf leash assembly of claim 10, wherein the board connecting member further includes a fifth fixing member, one end of the fifth fixing member connected to the second end of the third fixing member, and a surface of the fifth fixing member detachably connected to a second surface of the fourth fixing member.

12. the first support portion and the second support portion are both flexible, and / or the width of the second support portion is smaller than the width of the first support portion; the board connection body is obtained in one molding step and / or in the same molding device, 12. The surf leash assembly of claim 11, wherein the board connection body is constructed from a thermoplastic polyurethane elastomer material.

Citation Information

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