Elastic rope belt and rope belt device for fastening goods

Abstract

The utility model discloses an elastic rope belt and a rope belt device for fastening goods, belongs to a binding device for transporting goods, and aims to solve the problems that an existing rope belt device is poor in structure, a direct contact type product is free of buffering and large in friction force, an elastic body capable of being lengthened is connected in parallel with a middle section of a woven belt, and the length of the elastic body in a loose state is smaller than that of the middle section. The middle section limits the maximum lengthened length of the elastic body, through holes are formed in the first end and the second end of the elastic body, a connecting belt penetrates through the through holes, and the connecting belt and the woven belt are stacked and sewn together. In the pulling and tensioning process, the elastic body is lengthened until the middle section is tensioned, the middle section limits the elastic body to be lengthened infinitely, and the length is within a controllable range. Particularly, the middle section is tensioned and can be used as a reference for tensioning the whole elastic rope belt, so that a user can easily control the tensioning degree of the elastic rope belt. Moreover, when the tension of the elastic rope belt is reduced and loosened, the tension can be kept by utilizing the contraction and shortening of the elastic body, and the tension is prevented from disappearing.

Description

Technical Field

[0001] This utility model relates to a restraint device for transporting goods, specifically to an elastic rope and rope device for securing goods. Background Technology

[0002] Currently, transporting goods using trucks or freight containers poses numerous safety risks to operators and can result in significant damage to cargo upon delivery to the consignee. During transport, securing goods with various rope-like restraints such as tensioned cables, straps, and cargo straps is essential.

[0003] Generally, when binding goods, users use mechanical tightening devices such as ratchet tightening belts to tighten the bindings. However, the bindings are always in a taut state, and users cannot judge the tension of the bindings by touch, which can easily lead to the bindings being over-tightened, causing damage to the items due to excessive constriction.

[0004] Flexible rope-type straps (such as bungee ropes) are dangerous to use, have insufficient tension, and lack a safe way to release tension.

[0005] Strapping straps or cam buckle straps lack the ability to expand and bend the elastic band, resulting in a loss of tension if the goods sink or move.

[0006] US Patent Documents 10086745B2 and 5402557A disclose cord devices with elastic portions, but lack tension and the option to allow the user to pull and tighten them.

[0007] Previous attempts at flexible cargo belts required unreliable or expensive mechanical connections, resulting in high retail costs and making this safe and simple device unaffordable for most users.

[0008] The applicant has identified some shortcomings and problems in conventional methods of transporting objects as described above and other related systems. Through the application of effort, originality, and innovation, many of these identified problems have been solved by developing the technical solutions of this application, many of which are described in detail herein. Utility Model Content

[0009] The purpose of this invention is to overcome at least some of the defects in the existing technology and to provide an elastic rope and rope device for fastening goods, which aims to simplify the structure, facilitate manufacturing, reduce product costs, and increase the service life of the elastic rope.

[0010] To achieve the above objectives, the elastic cord for securing goods of this utility model includes a continuous webbing, characterized in that: the middle section of the webbing is connected with a stretchable elastic body, the length of the elastic body in a relaxed state is less than the length of the middle section, the middle section limits the maximum length of the elastic body that can be stretched, and the first and second ends of the elastic body are provided with through holes, through which a connecting strap is threaded, and the connecting strap is overlapped with the webbing and sewn together.

[0011] This elastic cord is an improvement on continuous webbing. Continuous webbing ensures that the tensile strength of each part of the webbing is consistent. In addition, continuous webbing can be smoothly pulled and tightened without obstruction, and the tension is uniform in all parts of the webbing length.

[0012] This elastic cord, when stretched, grows as the elastic body expands until the middle section is taut. This taut middle section limits the elastic body from being stretched indefinitely and causing damage, ensuring the elongation of the elastic body remains within a controllable range. In particular, the tautness of the middle section serves as a reference for the overall tension of the elastic cord, allowing users to easily control the tension level. Furthermore, when the elastic cord tension decreases and slackens, the contraction and shortening of the elastic body helps maintain tension, preventing its loss and ensuring the goods do not loosen during transport.

[0013] This elastic cord uses a connecting strap and webbing stacked and sewn together to connect the elastic body and the webbing. This simplifies the connection structure, reduces the volume of the connection area, and the sewing method minimizes damage to the connecting strap and webbing, ensuring the strength of the connection. Because the connecting strap and webbing are stacked and sewn together, they can be sewn in a single step, reducing the number of stitches, facilitating manufacturing, and lowering product costs.

[0014] This elastic cord consists of a connecting strap threaded through holes at both ends of the elastic body. When the elastic body is stretched and tension is generated, the contact area between the connecting strap and the elastic body is large, which can effectively alleviate stress concentration at the connection point between the connecting strap and the elastic body, prevent stress concentration damage to the elastic body, and increase the service life of the elastic cord.

[0015] Preferably, the difference between the maximum elongated length of the elastic body and its relaxed state length is 5-25cm, meaning the elastic body can be elongated by 5-25cm from its relaxed state. By setting this length difference according to the elasticity of the elastic body, the elastic body generates a predetermined elastic force and elongation, making the elastic rope suitable for binding and securing different goods.

[0016] Preferably, the first cord segment extending from the middle section of the webbing towards its first end is bent in the opposite direction to form a first loop. Between the first loop and the middle section is a first overlapping segment formed by overlapping and closing the first loop, which is then sewn together. This structure allows the first loop to be fitted onto the corresponding position to maintain tension on the elastic body when tensioned. For example, the first loop can be fitted onto the pin of a mechanical locking device, i.e., the pin is passed through the first loop, thereby connecting the webbing to the mechanical locking device. If the pin used for connection in the mechanical locking device is not removable, the first cord segment of the webbing is first wrapped around the pin, then the first overlapping segment is overlapped and sewn together to achieve the connection. If the pin used for connection in the mechanical locking device is removable, the first overlapping segment is first overlapped and sewn together to form a first loop, then the first loop is placed in the corresponding position of the mechanical locking device, and the pin is passed through the first loop to achieve the connection. The mechanical locking device can pull the elastic body and the webbing. When the mechanical locking device is not connected, tension on the elastic body and webbing can be achieved by hand.

[0017] Preferably, the connecting strip at the first end of the elastic body is overlapped with and sewn together with the first overlapping segment. In this way, the overlapping connecting strip and the first overlapping segment can achieve greater strength after being sewn together, and the structure is compact, which is conducive to a single sewing.

[0018] Preferably, the second cord segment extending from the middle section of the webbing towards its second end is bent in the opposite direction to form a second loop. The second loop and the middle section form a second overlapping segment, which is then sewn together. The second loop can be fitted onto the corresponding location to maintain tension on the elastic body when tensioned. The second loop is equipped with a hook, which facilitates its connection to the corresponding location.

[0019] Preferably, the connecting strip at the second end of the elastic body is overlapped with and sewn together with the second overlapping segment. In this way, the overlapping connecting strip and the second overlapping segment can achieve greater strength after being sewn together, and the structure is compact, which is conducive to a single sewing.

[0020] Preferably, the second cord segment includes a free cord segment extending from the second overlapping segment by a reverse bend. This free cord segment facilitates gripping and applying tensile force to pull the webbing and elastic body. A loop is sewn to the end of the free cord segment to restrain it in a suitable position, such as by fitting the loop onto a hook.

[0021] Preferably, the elastic body outer sleeve has a flexible sleeve that deforms as the elastic body stretches or shortens. The two ends of the flexible sleeve are overlapped and sewn together with the connecting straps and webbing. The flexible sleeve protects the elastic body, preventing it from being exposed and damaged. In particular, the flexible sleeve only covers the outer part of the elastic body and does not cover the middle section, leaving the middle section exposed. This facilitates observation of the tension of the middle section when the webbing is pulled.

[0022] Preferably, the area where the connecting strap and webbing overlap and are sewn together is covered by a sheath. This protects the sewn area.

[0023] Preferably, the elastic body is made of rubber or silicone.

[0024] This utility model discloses a rope device, comprising a cable and a mechanical locking device. The mechanical locking device is used to tighten, lock, and release the cable. The mechanical locking device is also connected to an elastic cord. The cable has a first connecting end, and the elastic cord has a second connecting end. The mechanical locking device and the elastic body are located between the first and second connecting ends. Accordingly, in use, the first and second connecting ends are connected to corresponding locations, such as anchor points. The rope device can then be tightened by pulling the cable. When tightened to the desired degree, the mechanical locking device locks the cable, and the elastic body is stretched to maintain tension. When the cable and elastic cord become slack due to shaking, sinking of goods, or movement, the elastic body maintains tension to prevent tension loss. To release tension, the mechanical locking device is operated to unlock the cable.

[0025] Both the first and second connecting ends are hooks for connection.

[0026] In one embodiment, the mechanical locking device includes a seat, a pin, a loop, and a latch. The pin and the loop are fixed to the seat, the cable is wound around the loop, the elastic cord is fitted onto the pin, and the latch is rotatably mounted on the seat and uses its elasticity to press the cable against the loop to lock the cable and allow the cable to be tightened. Operating the latch overcomes the elasticity to release the cable.

[0027] In another embodiment, the mechanical locking device includes a seat, a pin, a winding shaft, a ratchet, a first pawl, a second pawl, a winding handle, and an unlocking handle. The winding shaft is rotatably mounted on the seat, the ratchet is configured to rotate with the winding shaft, one end of the cable is fixed to the winding shaft, and an elastic cord is fitted onto the pin. The first and second pawls are engaged with the ratchet by the spring force to prevent the winding shaft from reversing and releasing the cable. One of the first and second pawls is pushed by the winding handle to cause the ratchet to rotate forward with the winding shaft and tighten the cable. The unlocking handle is used to disengage the first and second pawls from the ratchet and allow the winding shaft to reverse and release the cable.

[0028] This invention constructs an elastic cord by connecting stretchable elastic bodies in parallel in the middle section of a webbing. The length of the elastic body in its relaxed state is less than the length of the middle section. The middle section limits the maximum length of the elastic body that can be stretched. Both the first and second ends of the elastic body are provided with through holes, through which a connecting strap is threaded. The connecting strap is overlapped with the webbing and sewn together.

[0029] This elastic cord is an improvement on continuous webbing. Continuous webbing ensures that the tensile strength of each part of the webbing is consistent. In addition, continuous webbing can be smoothly pulled and tightened without obstruction, and the tension is uniform in all parts of the webbing length.

[0030] This elastic cord, when stretched, grows as the elastic body expands until the middle section is taut. This taut middle section limits the elastic body from being stretched indefinitely and causing damage, ensuring the elongation of the elastic body remains within a controllable range. In particular, the tautness of the middle section serves as a reference for the overall tension of the elastic cord, allowing users to easily control the tension level. Furthermore, when the elastic cord tension decreases and slackens, the contraction and shortening of the elastic body helps maintain tension, preventing its loss and ensuring the goods do not loosen during transport.

[0031] This elastic cord uses a connecting strap and webbing stacked and sewn together to connect the elastic body and the webbing. This simplifies the connection structure, reduces the volume of the connection area, and the sewing method minimizes damage to the connecting strap and webbing, ensuring the strength of the connection. Because the connecting strap and webbing are stacked and sewn together, they can be sewn in a single step, reducing the number of stitches and facilitating manufacturing.

[0032] This elastic cord consists of a connecting strap threaded through holes at both ends of the elastic body. When the elastic body is stretched and tension is generated, the contact area between the connecting strap and the elastic body is large, which can effectively alleviate stress concentration at the connection point between the connecting strap and the elastic body, prevent stress concentration damage to the elastic body, and increase the service life of the elastic cord. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the rope device in Embodiment 1 of this utility model;

[0034] Figure 2 This is a schematic diagram of the reverse bending of the webbing according to this utility model;

[0035] Figure 3 This is a schematic diagram of the webbing of this utility model being bent in the reverse direction to form the first loop and the second loop;

[0036] Figure 4 A schematic diagram showing the formation of the first overlapping segment and the second overlapping segment of the webbing of this utility model;

[0037] Figure 5 This is a schematic diagram of the first overlapping segment and the second overlapping segment after being sewn together according to this utility model;

[0038] Figure 6 This is a schematic diagram of the rope and belt device of this utility model;

[0039] Figure 7This is a schematic diagram showing the position of the elastic body and sheath of this utility model on the webbing;

[0040] Figure 8 This is a schematic diagram of the flexible sleeve on the elastic body outer shell of this utility model;

[0041] Figure 9 This is a schematic diagram of the elastic body, flexible sleeve, and webbing of this utility model after being sewn together and fitted with a protective sleeve.

[0042] Figure 10 for Figure 1 A schematic diagram of the rope device shown from another perspective;

[0043] Figure 11 This is a schematic diagram of the latch holding the cable to the surrounding part in Embodiment 1 of this utility model;

[0044] Figure 12 This is a schematic diagram of the locking release cable in Embodiment 1 of this utility model;

[0045] Figure 13 This is a schematic diagram of the rope device in Embodiment 2 of this utility model;

[0046] Figure 14 This is a schematic diagram of the mechanical locking device in Embodiment 2 of this utility model;

[0047] Figure 15 for Figure 14 The diagram shows a mechanical locking device where the winding handle causes the ratchet and winding shaft to rotate clockwise to tighten the cable.

[0048] Figure 16 for Figure 14 The diagram shows the unlocking handle of the mechanical locking device, which disengages the first and second pawls from the ratchet, allowing the winding shaft to reverse and release the cable.

[0049] Explanation of the labels in the diagram:

[0050] 100 Webbing, 101 Middle section, 102 First rope section, 103 First loop, 104 First overlapping section, 105 Second rope section, 106 Second loop, 107 Second overlapping section, 108 Free rope section, 109 Second connecting end;

[0051] 200 elastic body, 201 through hole, 202 connecting strip;

[0052] 300 flexible sleeve;

[0053] 400 sheath;

[0054] 500 cable, 501 first connection end;

[0055] 600 Mechanical locking device, 601 base, 602 pin, 603 circumferential part, 604 latch, 605 winding shaft, 606 ratchet, 607 first pawl, 608 second pawl, 609 winding handle, 610 unlocking handle. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. It should be understood that, for simplicity and clarity, the elements shown in the figures are not necessarily drawn to scale.

[0057] The accompanying drawings illustrate some, but not all, embodiments of this application. In fact, these can be embodied in many different forms and should not be construed as limited to the embodiments described herein. The terminology used herein is not intended to be limiting, as the device or portions thereof described herein can be connected or used in other orientations. The application will now be described more fully with reference to the accompanying drawings. The term "comprising" means including but not limited to and should be interpreted in the manner commonly used in the patent context.

[0058] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this utility model are intended to cover non-exclusive inclusion, such as a method or product that includes a series of technical features, not limited to those technical features explicitly listed, but also including other technical features that may be included in the method or product but not explicitly listed.

[0059] In the description of this utility model, it should be understood that the technical features defined by terms such as "first," "second," and "third," which have a sequential concept, are only used to clearly describe the defined technical features and to clearly distinguish the defined technical features from other technical features, and do not represent that they are named in this way in actual implementation. Therefore, they should not be construed as limitations on this utility model.

[0060] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings.

[0061] Example 1

[0062] Figure 1 , Figure 10A rope device for securing goods is shown. The rope device includes a cable 500 and a mechanical locking device 600 for tightening, locking, and releasing the cable 500. The mechanical locking device 600 is also connected to an elastic cord, which is connected via its first loop 103 fitted onto a pin 602 of the mechanical locking device.

[0063] Cable 500 is coupled to mechanical locking device 600 (e.g., around a corresponding loop 603) to tighten the cable by pulling on its tail end. Specifically, as... Figure 11-12 As shown, the mechanical locking device 600 includes a base 601, a pin 602, a wrapping portion 603, and a latch 604. The pin 602 and the wrapping portion 603 are fixed to the base 601. The cable 500 is wound around the wrapping portion 603. The first loop 103 of the elastic cord is fitted onto the pin 602. The latch 604 is rotatably mounted to the base 601 and, by the spring force, presses the cable 500 against the wrapping portion 603 to lock the cable, maintaining tension in the tightened cable. Furthermore, because the latch 604 is eccentrically configured in a cam shape, the cable 500... Figure 11 The direction indicated by the dashed arrow can be tightened, meaning the end of the pull cable can be pulled closer together. To untie, operate lock 604, as shown... Figure 12 Press the latch 604 as shown by the solid arrow to release the lock, allowing the latch to release the cable 500. At this point, it can be... Figure 12 Pull the cable in the direction indicated by the dashed arrow. Overall, the cable 500 of this rope device has a first connecting end 501, and the elastic cord webbing 100 has a second connecting end 109. Therefore, in use, by connecting the first connecting end 501 and the second connecting end 109 to corresponding locations such as anchor points, goods can be secured by pulling the end of the cable. Both the first and second connecting ends are hooks for connection.

[0064] In this application, the names 500 and 100 are used only to distinguish different rope segments; in actual products, they can have the same structure.

[0065] The elastic cord is an improvement on the continuous webbing. This improvement involves connecting a stretchable elastic body 200 in parallel to the middle section 101 of the webbing 100. The length of the elastic body 200 in its relaxed state is less than the length of the middle section 101, which limits the maximum length to which the elastic body 200 can be stretched. The elastic body 200 reaches its maximum elasticity when stretched to its maximum length. Specifically, as shown... Figure 6-7As shown, both the first and second ends of the elastic body 200 have through holes 201, through which a connecting strap 202 passes. The connecting strap 202 is overlapped with and sewn together with the webbing 100. The elastic body 200 is preferably made of materials such as rubber or latex. Rubber, latex, and similar materials are less likely to damage the webbing due to friction, thus maintaining their long lifespan. The connecting strap is also typically made of webbing.

[0066] In some embodiments, the difference between the maximum elongated length of the elastic body 200 and its length in its relaxed state is 5-25 cm, meaning the elastic body can be elongated by 5-25 cm from its relaxed state. This length difference is generally related to the total length of the goods bound by the rope device; a larger total length bound by the rope device results in a larger length difference, and vice versa. By setting this length difference according to the elasticity of the elastic body, the elastic body generates a predetermined elasticity and elongation, making the elastic rope suitable for binding and securing different goods. Preferably, the elastic body is made of rubber or silicone, which is easy to manufacture and has a low cost. The elastic body can also be made of other materials with elastic properties. Furthermore, the shape of the elastic body can be made into a strip, rope, or other shapes as needed.

[0067] In the illustrated structure, the webbing 100 extends from its middle section 101 towards its first end, with the first cord segment 102 bent in the opposite direction to form a first loop 103. Between the first loop 103 and the middle section 101 is a first overlapping segment 104 formed by the overlapping and closing of the first loop, and the first overlapping segment 104 is sewn together. With this structure, the first loop 103 can be fitted onto the pin 602 of the mechanical locking device, that is, the pin 602 is threaded through the first loop 103, thereby connecting the webbing to the mechanical locking device. If the pin 602 used for connection in the mechanical locking device is not detachable, such as if the pin is riveted to the mechanical locking device, then it can be... Figure 2-5 As shown, the first cord segment 102 of the webbing 100 is first wrapped around the pin 101, and then the first overlapping segment 102 is stacked and sewn together to achieve the connection. If the pin 602 used for connection in the mechanical locking device is detachable, such as a detachable screw, the first overlapping segment 102 can be stacked and sewn together to form the first loop 103, and then the first loop 103 can be placed in the corresponding position of the mechanical locking device, and the pin 602 can be inserted into the first loop 103 to achieve the connection.

[0068] In the illustrated structure, the connecting strip at the first end of the elastic body 200 is overlapped and sewn together with the first overlapping segment 104, and the connecting strip at the second end of the elastic body is overlapped and sewn together with the second overlapping segment 107. In this way, the overlapping connecting strip 202, the first overlapping segment 104, and the second overlapping segment 107 can obtain greater strength after being sewn together, and the structure is compact, which is conducive to a single sewing.

[0069] In the illustrated structure, the second cord segment 105 of the webbing 100, extending from its middle section 101 to its second end, is bent in the opposite direction to form a second loop 106. Between the second loop 106 and the middle section 101, there is a second overlapping segment 107 formed by the overlapping webbing closing the second loop, and the second overlapping segment 107 is sewn together. The second loop 106 can be fitted onto the corresponding part to maintain tension on the elastic body when tightened. The second loop 106 is equipped with a second hook as a second connecting end 109, which facilitates the connection of the second loop to the corresponding part.

[0070] Figure 1-10 In the structure shown, the second cord segment 105 includes a free cord segment 108 extending from the second overlapping segment 107 after being bent in the opposite direction. This free cord segment 108 facilitates gripping and applying tensile force to pull the webbing and elastic body. A third loop 110 is sewn into the end of the free cord segment, which can be fitted onto a hook serving as the second connecting end 109. Accordingly, the second cord segment 105 provides three connection methods: first, connecting to the relevant part using the hook serving as the second connecting end 109; second, connecting to the relevant part using the third loop 110; and third, connecting to the relevant part using another loop formed by the third loop 110 fitted onto the hook.

[0071] like Figure 1 , Figure 6-10 As shown, the elastic body 200 is covered by a flexible sleeve 300 that deforms as the elastic body stretches or shortens. The two ends of the flexible sleeve 300 are overlapped and sewn together with the connecting strap 202 and the webbing 100. The flexible sleeve protects the elastic body from exposure and damage. Specifically, the flexible sleeve 300 only covers the elastic body 200 and does not cover the middle section 101, which is exposed. This facilitates observation of the tension of the middle section when the webbing is pulled. Preferably, the flexible sleeve is a woven sleeve, such as one made of nylon or polyester blended tubular textiles. Therefore, when connecting the elastic body to the webbing, the woven sleeve is first placed over the elastic body and connecting strap, and then sewn together with the connecting strap to the webbing. In other embodiments, if the structure of the flexible sleeve allows for sewing the elastic body and connecting strap to the webbing first, and then covering or enclosing the elastic body and connecting strap with the flexible sleeve, such a manufacturing sequence is not excluded.

[0072] like Figure 1 , Figure 6-10As shown, the portion where the connecting strap 202 overlaps and is sewn with the webbing 100 is covered by a sheath 400. When a flexible sleeve is present, the sheath 400 also covers the end of the flexible sleeve 300. This protects the sewn area. The sheath is typically made of rubber to prevent wear and tear on the webbing during use. Generally, the sheath is pre-placed on the corresponding portion of the webbing, and the corresponding stitching is completed before the sheath is placed on the corresponding portion. In other embodiments, if the structure of the sheath allows for completing the corresponding stitching before placing the sheath on the corresponding portion, this manufacturing sequence is not excluded.

[0073] Given the elastic cord of this structure, such as Figure 1 , Figure 10 The diagram shows a rope assembly including a cable 500, a mechanical locking device 600, and an elastic cord. The mechanical locking device 600 and the elastic body 200 are located between the first connecting end 501 and the second connecting end 109. During the tightening of the rope assembly, the elastic body 200 is stretched, increasing its contractile elasticity and consequently increasing the tension of the webbing and cable until the middle section 101 of the webbing is taut, reaching its maximum elasticity. When the rope assembly slacks, as long as the elastic body does not return to a slack state, its elasticity maintains tension, thus ensuring the rope assembly maintains tension for securing goods in most situations.

[0074] Figure 1 , Figure 10 The rope device shown is based on an elastic rope. The continuous webbing ensures that the tensile strength of each part of the webbing tends to be consistent. Furthermore, the continuous webbing can be smoothly pulled and tensioned without obstruction, and the tension is uniform in each part along the length of the webbing.

[0075] Figure 1 , Figure 10 The rope device shown is based on an elastic rope. During tensioning, the elastic body grows until the middle section is taut, preventing the elastic body from being stretched indefinitely and becoming damaged. At this point, the entire rope device can function like various rope-like restraints such as tensioned cables, binding straps, and cargo straps. In particular, the tautness of the middle section serves as a reference for the overall tension of the elastic rope, allowing the user to easily control the tension. Furthermore, when the elastic rope tension decreases and slackens, the contraction and shortening of the elastic body helps maintain tension and prevent its loss.

[0076] Figure 1 , Figure 10The illustrated cord device uses an elastic cord to connect the elastic body and the webbing by overlapping and sewing together a connecting strip and a webbing. This simplifies the connection structure between the elastic body and the webbing, reduces the volume of the connection area, and the sewing method minimizes damage to the connecting strip and the webbing, ensuring the strength of the connection. Because the connecting strip and the webbing are overlapped and sewn together, they can be sewn in a single step, reducing the number of stitches and facilitating manufacturing.

[0077] Figure 1 , Figure 10 The rope device shown is based on an elastic rope. The connecting belt is threaded through the through holes at both ends of the elastic body. When the elastic body is stretched and tension is generated, the contact area between the connecting belt and the elastic body is large, which can effectively alleviate the stress concentration at the connection point between the connecting belt and the elastic body, avoid stress concentration damage to the elastic body, and increase the service life of the elastic rope.

[0078] Figure 1 , Figure 10 The rope device shown is based on an elastic rope. When used to secure goods by tightening and maintaining tension, it functions similarly to various rope-like restraints such as tensioned cables, binding straps, and cargo straps. Furthermore, when the rope device loosens due to reduced tension, the elastic body contracts and shortens to maintain tension, preventing its loss. This rope device also differs from flexible ropes (such as bungee cords), reducing the risk of injury, maintaining sufficient and uniform tension throughout the binding process, and allowing for safe release of tension.

[0079] Traditionally, ratchet belts are used to tighten goods for transport. However, typical ratchet belts are difficult to use, and elastic ropes pose dangers. This invention not only eliminates these dangers but also simplifies the tightening process to a single, simple step: pulling the end of the cable.

[0080] Figure 1 , Figure 10 The rope device shown is made by replacing the ratchet belt with an elastic body. This makes the manufacturing process much simpler and less expensive, resulting in a more reasonable retail price for the final product compared to a traditional ratchet device.

[0081] Example 2

[0082] The only difference between this embodiment and Embodiment 1 is the structure and operation of the mechanical locking device 600. For example... Figure 13-16As shown, the mechanical locking device 600 of this embodiment includes a base 601, a pin 602, a winding shaft 605, a ratchet 606, a first pawl 607, a second pawl 608, a winding handle 609, and an unlocking handle 610. The winding shaft 605 is rotatably mounted on the base, and the ratchet 606 is fixed together with the winding shaft 605 and can rotate with the winding shaft 605. One end of the cable 500 is fixed to the winding shaft 605. The first loop 103 of the elastic cord is fitted onto the pin 602.

[0083] like Figure 14 As shown, the first pawl 607 and the second pawl 608 are engaged with the ratchet 606 by the spring force to prevent the winding shaft from reversing. Figure 14 Release the cable in a clockwise direction.

[0084] like Figure 15 As shown, the first pawl 607, propelled by the winding handle 609, causes the ratchet to rotate clockwise, carrying the winding shaft 605. Figure 15 Tighten the cable (counter-clockwise). And, as... Figure 15 The solid arrows indicate that the winding handle 609 swings repeatedly. When the winding handle 609 rotates clockwise, it pushes the ratchet and winding shaft 605 to rotate clockwise together via the first pawl 607. Figure 15 Tighten the cable in the direction indicated by the dashed arrow. Reverse the winding handle 609. Figure 15 When rotating clockwise, the second pawl remains engaged with the ratchet, preventing the ratchet and winding shaft from reversing, while the first pawl 607 rotates counterclockwise along the ratchet. Figure 15 Move clockwise. Repeat this process to gradually wind the cable onto the winding shaft and tighten it. (See diagram)

[0085] like Figure 16 As shown, pull the unlocking handle 610 in the direction of the solid arrow in the figure to disengage the first pawl 607 and the second pawl 608 from the ratchet, allowing the winding shaft to reverse and release the cable. At this time, the cable can be pulled as shown by the dashed arrow in the figure to cause the ratchet and winding shaft to reverse. Figure 16 Release the cable in a clockwise direction.

[0086] The remaining structure of this embodiment is the same as that of Embodiment 1, and will not be described in detail.

Claims

1. An elastic cord for securing goods, comprising a continuous webbing (100), wherein a middle section (101) of the webbing (100) is connected in parallel to a stretchable elastic body (200), the length of the elastic body (200) in a relaxed state being less than the length of the middle section (101), the middle section (101) defining the maximum length to which the elastic body (200) can be stretched, characterized in that: The elastic body (200) has through holes (201) at both the first and second ends. A connecting strip (202) is inserted through the through hole (201). The connecting strip (202) is overlapped with the webbing (100) and sewn together.

2. The elastic cord according to claim 1, characterized in that: The difference between the maximum length of the elastic body (200) when it is stretched and the length of the elastic body in its relaxed state is 5-25cm.

3. The elastic cord according to claim 1, characterized in that: The webbing (100) extends from its middle section (101) to its first end, and the first rope section (102) bends in the opposite direction to form a first loop (103). The first loop (103) and the middle section (101) are connected by a first overlapping section (104) formed by overlapping and closing the first loop. The first overlapping section (104) is sewn together.

4. The elastic cord according to claim 3, characterized in that: The connecting strip at the first end of the elastic body (200) is overlapped with the first overlapping segment (104) and sewn together.

5. The elastic cord according to claim 1, 3, or 4, characterized in that: The second rope segment (105) extending from the middle section (101) of the webbing (100) to its second end is bent in the opposite direction to form a second loop (106). The second loop (106) and the middle section (101) are connected by a second overlapping segment (107) formed by overlapping and closing the second loop. The second overlapping segment (107) is sewn together.

6. The elastic cord according to claim 5, characterized in that: The connecting strip at the second end of the elastic body (200) is overlapped with the second overlapping segment (107) and sewn together.

7. The elastic cord according to claim 5, characterized in that: The second ring (106) is equipped with a hook.

8. The elastic cord according to claim 7, characterized in that: The second rope segment (105) includes a free rope segment (108) that extends from the second overlapping segment (107) by bending in the opposite direction.

9. The elastic cord according to claim 1, characterized in that: The elastic body (200) is covered with a flexible sleeve (300) that can deform as the elastic body stretches or shortens. The two ends of the flexible sleeve (300) are overlapped and sewn together with the connecting strip (202) and the webbing (100).

10. The elastic cord according to claim 1 or 9, characterized in that: The area where the connecting strap (202) and webbing (100) are overlapped and sewn together is covered by a sheath (400).

11. The elastic cord according to any one of claims 1-4, 9, characterized in that: The elastic body (200) is made of rubber or silicone.

12. A rope device, comprising a cable (500) and a mechanical locking device (600) for tensioning, locking, and releasing the cable, characterized in that: The mechanical locking device (600) is also connected to the elastic cord as described in any one of claims 1-11, the cable (500) having a first connecting end (501), the webbing (100) of the elastic cord having a second connecting end (109), and the mechanical locking device (600) and the elastic body (200) being located between the first connecting end (501) and the second connecting end (109).

13. The rope device according to claim 12, characterized in that: Both the first connecting end (501) and the second connecting end (109) are hooks.

14. The rope device according to claim 12 or 13, characterized in that: The mechanical locking device (600) includes a base (601), a pin (602), a loop (603), and a latch (604). The pin (602) and the loop (603) are fixed to the base (601). The cable (500) is wound around the loop (603). An elastic cord is fitted onto the pin (602). The latch (604) is rotatably mounted on the base (601) and uses its elasticity to press the cable (500) against the loop (603) to lock the cable and allow the cable (500) to be tightened. By operating the latch (604), the elasticity is overcome and the latch releases the cable (500).

15. The rope device according to claim 12 or 13, characterized in that: The mechanical locking device (600) includes a base (601), a pin (602), a winding shaft (605), a ratchet (606), a first pawl (607), a second pawl (608), a winding handle (609), and an unlocking handle (610). The winding shaft (605) is rotatably mounted on the base, the ratchet (606) is configured to rotate with the winding shaft (605), one end of a cable (500) is fixed to the winding shaft (605), and an elastic cord is fitted onto the pin (602). The first pawl (607) and the second pawl (608) are engaged with the ratchet (606) by the spring force to prevent the winding shaft from reversing and releasing the cable. One of the first pawl (607) and the second pawl (608) is pushed by the winding handle (609) to make the ratchet rotate forward with the winding shaft (605) to tighten the cable. The unlocking handle (610) is used to disengage the first pawl (607) and the second pawl (608) from the ratchet and allow the winding shaft to reverse and release the cable.

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