Stretch cord that can be used for pressure, acupressure and stretching

Abstract

To provide a stretch cord that can be easily attached to various parts of the body. [Solution] A stretch cord (10) has a composite spring structure (3) in which a spring steel wire (1) is threaded through a tube member (2), and a main tube portion (5) connected to ring members (4) at both ends, and can be wrapped around the body to provide pressure, acupressure, and stretching. When the stretch cord (10) is wrapped around the body, the elasticity of the spring steel wire (1) applies pressure to the muscles and tendons, preventing them from being pushed outward. When the body is moved with the stretch cord (10) worn, the elasticity of the spring steel wire (1) stimulates the muscles and tendons, providing acupressure and relieving stiffness. When the stretch cord (10) is wrapped around the body in a spiral, the return force of the spring steel wire (1) stretches the muscles and tendons, preventing them from contracting.

Description

[Technical Field]

[0001] This invention relates to a stretch cord that can be used for acupressure and pressure in general daily life, as well as for post-sports maintenance and medical rehabilitation, with the aim of improving and preventing physical pain, twisting, and joint deformation caused by weakened muscles and muscle fatigue. [Background technology]

[0002] Most muscles that move the body are attached to bones via tendons, and move by rotating joints, so pain and stiffness in the body occur along the nerves and tendons. Also, because the body is a collection of levers, it rotates many joints at once and moves using many muscles around bones as axes. Therefore, to resolve pain and stiffness, it is necessary to relieve tension in the many muscles and tendons involved in the pain and stiffness, but because pain occurs when muscles and tendons tense up and contract, putting pressure on nerves, it is also necessary to prevent the muscles and tendons from contracting.

[0003] Therefore, a supporter that can apply pressure, acupressure, and stretching has been proposed. In this supporter, a spring steel wire is covered with a tube member, which is further covered with an elastic material, and a hook-and-loop fastener or the like is attached to the main body of the supporter, which can be worn by wrapping it around the body to apply pressure, acupressure, and stretching (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5357325 [Patent Document 2] Patent No. 5519855 Summary of the Invention [Problem to be solved by the invention]

[0005] In the technical field of the supporters described in the cited documents 1 and 2, there is a demand for supporters and stretch cords that can be easily attached to various parts of the body.

[0006] Therefore, the present invention has been made in response to the above-mentioned problems, and has as its object to provide a stretch cord that can be easily attached to various parts of the body. [Means for solving the problem]

[0007] [1] The stretch cord of the present invention, which is capable of applying pressure, acupressure, and stretching, comprises a main tube portion with both ends of a composite spring structure having a spring steel wire threaded through a tube member, and is capable of applying pressure, acupressure, and stretching by wrapping it around the body. When the stretch cord is wrapped around the body and worn, the elasticity of the spring steel wire applies a pressure effect to the muscles and tendons, preventing them from being pushed outward; when the body is moved with the stretch cord wrapped around the body and worn, the elasticity of the spring steel wire stimulates the muscles and tendons with an acupressure effect, relieving stiffness in the muscles and tendons; and when the stretch cord is wrapped around the body in a spiral shape and worn, the return force of the spring steel wire applies a stretch effect to the muscles and tendons, preventing them from contracting.

[0008] [2] In the stretch cord of the present invention capable of applying pressure, acupressure, and stretching, it is preferable that the both ends of the main tube portion are connected to the ring members by a structure in which the ring members are sandwiched at the folded-back portion of the tube member containing the spring steel wire inside.

[0009] [3] In the stretch cord of the present invention that can provide pressure, acupressure, and stretching, the main tube portion is preferably a stretch cord having a structure in which the composite spring structure is covered with an elastic tube.

[0010] [4] In the stretch cord capable of applying pressure, acupressure, and stretching according to the present invention, it is also preferable that the tube main body is a stretch cord having a structure in which the composite spring structure is not covered with an elastic tube.

[0011] [5] In the stretch cord of the present invention that can provide pressure, acupressure, and stretching, it is preferable that the ring member is a stretch cord having a stopper attached thereto.

[0012] [6] In the stretch cord of the present invention capable of applying pressure, acupressure, and stretching, it is preferable that the tube main body be a stretch cord having two tube main bodies connected in series to each other.

[0013] [7] In the stretch cord of the present invention capable of applying pressure, acupressure, and stretching, it is preferable that the stretch cord has three main tube portions connected in series with each other.

[0014] [8] In the stretch cord of the present invention capable of applying pressure, acupressure, and stretching, it is also preferable that the main tube portion is a stretch cord having a structure in which both ends of a composite spring structure in which multiple spring steel wires are passed through a tube member as the spring steel wire are connected to the ring member.

[0015] [9] In the stretch cord of the present invention capable of applying pressure, acupressure, and stretching, it is also preferable that the main tube portion is a stretch cord having a structure in which both ends of a “multiple composite spring structure in which one or more spring steel wires are passed through a tube member as the spring steel wire” are each connected to the ring member. [Effects of the Invention]

[0016] In this invention, because both ends of the composite spring structure are equipped with a main tube portion connected to a ring member, it is possible to (a) wrap the stretch cord around the body and then secure it to various parts of the body using the ring member, (b) pass one end of the stretch cord through a ring hole in the ring member at the other end to create a loop, then pass a hand or foot through the loop and wrap the stretch cord around the body to secure it, or (c) use a long stretch cord made by connecting two or more stretch cords using a ring member to wrap it around the body and then secure it. Therefore, this invention provides a stretch cord that is easy to wear on various parts of the body. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a diagram illustrating a stretch cord (10) according to the first embodiment that can apply pressure, acupressure, and stretching. [Figure 2] FIG. 10 is a diagram illustrating a stretch cord (10a) according to a second embodiment that can apply pressure, acupressure, and stretching. [Figure 3] FIG. 10 is a diagram illustrating a stretch cord (10) according to a third embodiment that can apply pressure, acupressure, and stretching. [Figure 4] FIG. 10 is a diagram illustrating a stretch cord (10a) according to a fourth embodiment that can apply pressure, acupressure, and stretching. [Figure 5] FIG. 10 is a diagram illustrating a stretch cord (10b) according to a fifth embodiment that can apply pressure, acupressure, and stretching. [Figure 6] FIG. 10 is a diagram illustrating a stretch cord (10b) according to a sixth embodiment that can apply pressure, acupressure, and stretching. [Figure 7] FIG. 10 is a diagram illustrating a stretch cord (10b) according to a seventh embodiment that can apply pressure, acupressure, and stretching. [Figure 8] FIG. 13 is a diagram illustrating a stretch cord (10b) according to an eighth embodiment that can apply pressure, acupressure, and stretching. [Figure 9]FIG. 13 is a diagram illustrating a stretch cord (10c) according to a ninth embodiment, which is capable of applying pressure, acupressure, and stretching. [Figure 10] FIG. 13 is a diagram illustrating a stretch cord (10c) according to a tenth embodiment that can apply pressure, acupressure, and stretching. [Figure 11] 1A to 1C are diagrams illustrating examples of use of stretch cords (1, 10a, 10b, 10c) that can apply pressure, acupressure, and stretching according to each embodiment. [Figure 12] FIG. 10 is a diagram illustrating a composite spring structure (3d) and a main tube portion (5d) used in a stretch cord capable of applying pressure, finger pressure, and stretching according to the first modified example. [Figure 13] FIG. 10 is a diagram illustrating a composite spring structure (3e) and a main tube portion (5e) used in a stretch cord capable of applying pressure, finger pressure, and stretching according to Modification 2. DETAILED DESCRIPTION OF THE INVENTION

[0018] The stretch cord of the present invention will be described below based on the embodiments shown in the drawings. The drawings are schematic diagrams and do not necessarily accurately reflect the actual structure, configuration, proportions, etc. The embodiments described below do not limit the invention according to the scope of the utility model claims. Furthermore, not all of the elements and their combinations described in the embodiments are necessarily essential to the present invention.

[0019] [Embodiment 1] FIG. 1 is a diagram illustrating a stretch cord (10) capable of applying pressure, acupressure, and stretching according to embodiment 1. FIG. 1(a) is a plan view of a composite spring structure (3), FIG. 1(b) is a cross-sectional view of the composite spring structure (3), FIG. 1(c) is a plan view of the stretch cord (10), and FIG. 1(d) is a partially enlarged view showing the connection structure between the composite spring structure (3) and a ring member (4). Note that in this specification, a stretch cord capable of applying pressure, acupressure, and stretching may also be simply referred to as a stretch cord.

[0020] As shown in FIG. 1, the stretch cord (10) according to the first embodiment comprises a composite spring structure (3) having a spring steel wire (1) threaded through a tube member (2), and a tube main body (5) having both ends connected to ring members (4). The stretch cord can be worn by wrapping it around the body to provide pressure, acupressure, and stretching.

[0021] The stretch cord (10) according to the first embodiment is a stretch cord in which, when the stretch cord (10) is wound around the body and worn, the elasticity of the spring steel wire (1) exerts a pressure effect on the muscles and tendons, preventing them from being pushed outward; when the body is moved with the stretch cord (10) wound around the body and worn, the elasticity of the spring steel wire (1) stimulates the muscles and tendons with an acupressure effect, relieving stiffness in the muscles and tendons; and when the stretch cord (10) is wound around the body in a spiral shape and worn, the force of the spring steel wire (1) trying to return to its original position exerts a stretching effect on the muscles and tendons, preventing them from contracting.

[0022] In the stretch cord (10) according to the first embodiment, as shown in Figs. 1(c) and 1(d), both ends of the tube main body (5) are connected to the ring members (4) by a structure in which the ring members (4) are sandwiched at the folded-back portions (6) of the tube member (7) that contains the spring steel wire (1) therein.

[0023] In the stretch cord (10) according to the first embodiment, the tube main body (5) has a structure in which the composite spring structure (3) is not covered with the elastic tube (8).

[0024] In the first embodiment, the diameter of the spring steel wire (1) corresponds to the location where it is to be worn (e.g., 0.8 mm for the neck and shoulders, 0.3 mm for the limbs, etc.), and the length corresponds to the location where it is to be worn (e.g., 1500 mm for the neck and shoulders, 700 mm for the limbs, etc.). The tube member (2) is made of, for example, a silicone tube with a hardness of 40 degrees, and has an outer diameter of 4 mm, an inner diameter of 2 mm, and a length of, for example, 1500 mm. The tube member (2) is preferably made of a waterproof material. The ring member (4) is made of, for example, a silicone ring with a hardness of 40 degrees, and has a ring thickness of, for example, 3 mm, an outer diameter of, for example, 30 mm, and an inner diameter of, for example, 24 mm.

[0025] According to the stretch cord 10 of the first embodiment, both ends of the composite spring structure 3 are provided with a main tube portion 5 connected to a ring member 4, which allows the stretch cord 10 to be (a) wrapped around the body and then secured to various parts of the body using the ring member 4, (b) one end of the stretch cord 10 is passed through a ring hole in the ring member 4 at the other end to create a loop, and the stretch cord 10 is then wrapped around the body and secured, or (c) two or more stretch cords 10 are connected using the ring member 4 to form a long stretch cord 10 that can be wrapped around the body and then secured. This makes the stretch cord 10 of the first embodiment easy to wear around various parts of the body.

[0026] According to the stretch cord (10) of embodiment 1, both ends of the composite spring structure (3) are provided with a tube main body (5) connected to a ring member (4), respectively, and therefore the stretch cord (10) can be attached and fixed to the body using two ring members (4), which also has the effect of making the stretch cord (10) less likely to loosen after being attached.

[0027] In the stretch cord 10 according to the first embodiment, as shown in FIGS. 1(c) and 1(d), one end of the tube main body 5 is connected to the ring member 4 by a structure in which the ring member 4 is sandwiched at the folded-back portion 6 of the tube member 7 containing the spring steel wire 1 therein, and therefore the tube main body 5 and the ring member 4 can be easily connected.

[0028] According to the stretch cord (10) of the first embodiment, the composite spring structure (3) is not covered with the elastic tube (8), so if a waterproof tube member (2) is used, the stretch cord (10) can be worn around the wrist while doing household chores or washing hands. Furthermore, compared to the stretch cord (10a) covered with the elastic tube (8) (see Figure 2 described below), the stretch cord can be made thinner, making the stretch cord (10) more suitable for use on the hands and feet.

[0029] [Embodiment 2] Figure 2 is a diagram illustrating a stretch cord (10a) capable of applying pressure, acupressure, and stretching according to embodiment 2. Figure 2(a) is a plan view of the composite spring structure (3a), Figure 2(b) is a plan view of the stretch cord (10a), and Figure 2(c) is a partially enlarged view showing the connection structure between the composite spring structure (3a) and the ring member (4).

[0030] The stretch cord 10a according to the second embodiment differs from the stretch cord 10 according to the first embodiment in that the composite spring structure 3 is covered with an elastic tube 8, as shown in Fig. 2. According to the stretch cord 10a according to the second embodiment, by adjusting the material and hardness of the elastic tube 8, it is possible to make the compression effect, acupressure effect, and stretching effect appropriate for the part of the body and the condition of the body. In the second embodiment, the elastic tube (8) is made of, for example, polyester cord, and has an inner diameter of, for example, 16.4 mm and a length of, for example, 1800 mm.

[0031] [Embodiment 3] FIG. 3 is a diagram illustrating a stretch cord (10) capable of applying pressure, acupressure, and stretching according to a third embodiment. FIG. 3(a) is a plan view of the stretch cord (10), FIG. 3(b) is a partially enlarged view showing the fasteners (9, 9a) attached to the ring member (4), FIG. 3(c) is an enlarged plan view of the fastener (9), FIG. 3(d) is an enlarged plan view of the fastener (9a), and FIG. 3(e) is a perspective view showing the state in which one ring member (4) is inserted into the ring hole of the other ring member (4) to which the fastener (9) is attached, forming a loop. In the third embodiment, the fastener (9) is, for example, a rubber band, and the fastener (9a) is, for example, a plastic clip.

[0032] As shown in Figure 3, the stretch cord (10) of the third embodiment differs from the stretch cord (10) of the first embodiment in that a fastener (9, 9a) is attached to a ring member (4) connected to one end of the stretch cord (10). The stretch cord (10) of the third embodiment uses the fastener (9, 9a) when attaching the stretch cord (10) to the body, making it easy to attach to various parts of the body. Furthermore, by connecting two or more stretch cords (10) in series using the fastener (see Figure 8 described below), the stretch cord (10) can be made longer, making it easy to attach to various parts of the body.

[0033] [Embodiment 4] Figure 4 is a diagram illustrating a stretch cord (10a) capable of applying pressure, acupressure, and stretching according to embodiment 4. Figure 4(a) is a plan view of the stretch cord (10a), Figure 4(b) is a partially enlarged view showing the fasteners (9, 9a) attached to the ring member (4), Figure 4(c) is an enlarged plan view of the fastener (9), Figure 4(d) is an enlarged plan view of the fastener (9a), and Figure 4(e) is a perspective view showing the state in which one ring member (4) is passed through the ring hole of the other ring member (4) to which the fastener (9) is attached to form a loop.

[0034] The stretch cord 10a according to the fourth embodiment differs from the stretch cord 10 according to the third embodiment in that the composite spring structure 3 is covered with an elastic tube 8, as shown in Fig. 4. According to the stretch cord 10a according to the fourth embodiment, by adjusting the material and hardness of the elastic tube 8, it is possible to make the compression effect, acupressure effect, and stretching effect appropriate for the part of the body and the condition of the body.

[0035] [Embodiment 5] Figure 5 is a diagram illustrating a stretch cord (10b) capable of applying pressure, acupressure, and stretching according to embodiment 5. Figure 5(a) is a plan view of two composite spring structures (3a) that make up the stretch cord (10b), Figure 5(b) is a plan view of the stretch cord (10b), and Figure 5(c) is a partially enlarged view showing the connection structure when two composite spring structures (3a) are connected using a ring member (4).

[0036] The stretch cord (10b) according to the fifth embodiment differs from the stretch cord (10) according to the second embodiment in that it has a structure in which two composite spring structures (3a) are connected, as shown in Fig. 5. Therefore, according to the stretch cord (10b) according to the fifth embodiment, the stretch cord (10) can be made longer, and the stretch cord (10b) can be easily worn on various parts of the body. The stretch cord (10b) according to the fifth embodiment can also be considered to be a stretch cord (10b) in which two stretch cords (10a) are connected in series. In this case, one ring member (4) at the connection site can also be considered to be a ring member (4) shared by the two stretch cords (10a). As shown in FIG. 5, one of the two stretch cords (10a) is shorter than the other. This makes the stretch cord (10b) easy to wear on various parts of the body. In the fifth embodiment, the spring steel wire (1) shown in the upper part of Fig. 5(a) has a diameter of, for example, 0.8 mm and a length of, for example, 1500 mm. The spring steel wire (1) shown in the lower part of Fig. 5(a) has a diameter of, for example, 0.3 mm and a length of, for example, 700 mm.

[0037] [Embodiment 6] Figure 6 is a diagram illustrating a stretch cord (10b) capable of applying pressure, acupressure, and stretching according to embodiment 6. Figure 6(a) is a plan view of the stretch cord (10b), Figure 6(b) is a partially enlarged view showing the connection structure when two composite spring structures (3a) are connected using a ring member (4), and Figure 6(c) is a perspective view showing the state in which one ring member (4) is passed through the ring hole of the other ring member (4) to which the fastener (9 or 9a) is not attached to form a loop.

[0038] The stretch cord (10b) according to the sixth embodiment differs from the stretch cord (10b) according to the fifth embodiment in that, as shown in Fig. 6, a loop is formed by passing one ring member (4) through the ring hole of the other ring member (4) to which no fastener (9 or 9a) is attached. The stretch cord (10b) according to the sixth embodiment can be easily worn on various parts of the body by passing a hand or foot through the loop formed by passing one end of the stretch cord (10b) through the ring hole of the ring member (4) at the other end, and then wrapping the stretch cord (10b) around the body and securing it to various parts of the body.

[0039] [Embodiment 7] Figure 7 is a diagram illustrating a stretch cord (10b) capable of applying pressure, acupressure, and stretching according to embodiment 7. Figure 7(a) is a plan view of two stretch cords (10a) that make up the stretch cord (10b), Figure 7(b) is a plan view of the stretch cord (10b) having a structure in which two stretch cords (10a) are connected using three ring members (4), Figure 7(c) is a partially enlarged view showing the connection structure in which two stretch cords (10a) are connected using three ring members (4), and Figure 7(d) is a partially enlarged view showing how two stretch cords (10a) are connected using three ring members (4).

[0040] The stretch cord (10b) according to the seventh embodiment differs from the stretch cord (10b) according to the fifth embodiment in that it has a structure in which two stretch cords (10a) are connected using three ring members (4), as shown in Fig. 7. The stretch cord (10b) according to the seventh embodiment not only has the same effects as the fifth embodiment, but also has the advantage that if a stretch cord (10a) is prepared in advance, with both ends connected to ring members (4), a stretch cord (10b) can be made on-site from these two stretch cords (10a) according to the part of the body to be worn on, making it easy to wear on various parts of the body.

[0041] As a method for connecting two stretch cords 10a using three ring members 4, as shown in Figure 7(d), one method is to pass the ring member at one end of the short stretch cord 10a through the ring member 4 on the long stretch cord 10a that has no fastener, and then pass the ring member 4 on the other end of the short stretch cord 10a through one of the ring members 4 on the long stretch cord 10a to stretch it. By this method, the stretch cord 10b according to the seventh embodiment is completed (see Figures 7(b) and 7(c)).

[0042] [Embodiment 8] Figure 8 is a diagram illustrating a stretch cord (10b) capable of applying pressure, acupressure, and stretching according to embodiment 8. Figure 8(a) is a plan view of two stretch cords (10a) that make up the stretch cord (10b), Figure 8(b) is a plan view of the stretch cord (10b) having a structure in which two stretch cords (10a) are connected using fasteners (9, 9a), and Figure 8(c) is a partially enlarged view showing the connection structure in which two stretch cords (10a) are connected using fasteners (9, 9a).

[0043] The stretch cord (10b) of embodiment 8 differs from the stretch cord (10b) of embodiment 7 in that it has a structure in which two stretch cords (10a) are connected using a fastener (9 or 9a), as shown in Figure 8. The stretch cord (10b) of embodiment 8 has the same effect as embodiment 7, namely, by preparing in advance a stretch cord (10a) each having a ring member (4) connected to each end, a stretch cord (10b) can be made on-site from these two stretch cords (10a) according to the part of the body to be worn, resulting in a stretch cord (10b) that can be easily worn on various parts of the body.

[0044] [Embodiment 9] Fig. 9 is a diagram illustrating a stretch cord 10c according to embodiment 9 that can provide pressure, acupressure, and stretching. Fig. 9(a) is a plan view of the stretch cord 10b according to embodiment 6 and the stretch cord 10a according to embodiment 2 that make up the stretch cord 10c, Fig. 9(b) is a plan view of the stretch cord 10c, and Fig. 9(c) is a partially enlarged view showing a connection structure in which the stretch cord 10b and the stretch cord 10a are connected using three ring members 4.

[0045] As shown in FIG. 9, the stretch cord 10c according to the ninth embodiment has a structure in which the stretch cord 10b according to the sixth embodiment and the stretch cord 10a according to the second embodiment are connected using three ring members 4. The method for connecting the stretch cord 10b and the stretch cord 10a using three ring members 4 can be the same as that described in the seventh embodiment. That is, the ring member 4 at one end of the stretch cord 10a is passed through the ring member 4 at the stretch cord 10b that does not have the fasteners 9, 9a attached, and the ring member 4 at the other end of the stretch cord 10a is passed through the ring member 4 at the other end of the stretch cord 10a, which is passed through the ring member 4 at the other end of the stretch cord 10b. This method completes the stretch cord 10c of the ninth embodiment (see FIGS. 9(b) and 9(c)).

[0046] The stretch cord 10c according to embodiment 9 can be said to have a structure in which three stretch cords 10a are connected together. The stretch cord 10c according to embodiment 9 differs from the stretch cord 10b according to embodiment 5 in that it has a structure in which three stretch cords 10a are connected together. The stretch cord 10c according to embodiment 9 not only has the same effects as the stretch cord 10b according to embodiment 5, but also allows the stretch cord 10c according to embodiment 9 to be made from these three stretch cords 10a according to the part of the body to which it is to be worn, making the stretch cord 10c easier to wear on various parts of the body.

[0047] [Implementation 10] Fig. 10 is a diagram illustrating a stretch cord 10c capable of applying pressure, acupressure, and stretching according to embodiment 10. Fig. 10(a) is a plan view of stretch cord 10b according to embodiment 6 and stretch cord 10a according to embodiment 2 that constitute stretch cord 10c, Fig. 10(b) is a plan view of stretch cord 10c, and Fig. 10(c) is a partially enlarged view showing a connection structure in which stretch cord 10b and stretch cord 10a are connected using fastener 9 or 9a.

[0048] As shown in FIG. 10, the stretch cord (10c) according to the tenth embodiment differs from the stretch cord (10c) according to the ninth embodiment in that it has a connection structure in which the stretch cord (10b) according to the sixth embodiment and the stretch cord (10a) according to the second embodiment are connected using a fastener (9 or 9a). However, it retains the same effects as the stretch cord (10c) according to the ninth embodiment.

[0049] [How to use] Figure 11 is a diagram illustrating an example of use of the stretch cords (10, 10a, 10b, 10c) capable of applying pressure, acupressure, and stretching according to each of the above-described embodiments. Figure 11(a) shows the stretch cords (10b, 10c) worn on the entire body of a user, Figure 11(b) shows the stretch cords (10, 10a) worn on the user's fingers, and Figure 11(c) shows the stretch cords (10, 10a) worn on the user's feet.

[0050] The stretch cord (10, 10a, 10b, 10c) capable of applying pressure, acupressure, and stretching according to embodiment 1 can be worn on the neck, shoulders, chest, abdomen, waist, arms, legs, wrists, ankles, fingers, and feet of a user, as shown in Fig. 11. Here, the neck and shoulders refer to the boundary between the neck and shoulders (or torso). Although not shown, the wrist may include not only the wrist but also the palm, back, and fingers from the wrist down, and the ankle may include not only the ankle but also the sole, top, and toes from the ankle down.

[0051] When the stretch cords (10b, 10c) are attached to the neck, shoulders, chest, abdomen, waist, arms, legs, wrists, or ankles of the user, one end of the main tube part (5) is placed on the neck, shoulders (chest, abdomen, waist, arms, legs, wrists, or ankles) of the user, and while holding down the one end, it is wrapped around the neck, shoulders (chest, abdomen, waist, arms, legs, wrists, or ankles) of the user as many times as necessary, and then the other end is fixed using the ring member (4) or the fastener (9 or 9b).

[0052] When attaching the stretch cord (10, 10a) to the user's hand, first, as shown in Figures 3(e) and 4(e), the tube main body (5, 5a) is passed through the hole in the ring member (4) to make a loop of the required size, and then the loop is passed through the hand, wrapped around the hand, and the other end is fixed at a desired location.

[0053] When attaching the stretch cord (10, 10a) to the user's toes, first, as shown in Figures 3(e) and 4(e), the tube main body (5, 5a) is passed through the hole in the ring member (4) to make a loop of the required size, and then the loop is passed through the toes, wrapped around the toes, and the other end is fixed at a desired location.

[0054] [Variation 1] Figure 12 is a diagram for explaining the composite spring structure (3b) and the main tube part (5d) used in the stretch cord capable of applying pressure, finger pressure, and stretching according to Modification 1. Figure 12(a) is a cross-sectional view of the composite spring structure (3d), and Figure 12(b) is a plan view of the main tube part (5d).

[0055] In the above-described embodiments, the composite spring structure is a composite spring structure (3, 3a) having a structure in which one spring steel wire (1) is threaded through a tube member (2), but the present invention is not limited to this. For example, as shown in Fig. 12, the composite spring structure may be a composite spring structure (3d) having a structure in which two spring steel wires (1) are threaded through a tube member (2), or a composite spring structure (3d) having a structure in which two or more spring steel wires (1) are threaded through a tube member (2).

[0056] [Variation 2] Fig. 13 is a diagram for explaining the composite spring structure (3e) and the tube main body (5e) used in the stretch cord capable of applying pressure, finger pressure, and stretching according to Modification 2. Fig. 13(a) is a cross-sectional view of the composite spring structure (3e), and Fig. 13(b) is a plan view of the tube main body (5e).

[0057] In the above-described embodiments, the stretch cord is a "stretch cord having ring members (4) connected to both ends of a single composite spring structure (3, 3a)," but the present invention is not limited to this. For example, as shown in Fig. 13, the stretch cord may be a "stretch cord having two composite spring structures (3, 3a) having ring members (4) connected to both ends," or the stretch cord may be a "stretch cord having two or more composite spring structures (3, 3a) having ring members (4) connected to both ends."

[0058] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present invention. For example, in the fifth to eighth embodiments, the spring steel wire used in one of the two stretch cords may be thinner than the spring steel wire used in the other stretch cord. [Explanation of symbols]

[0059] 1...Spring steel wire, 2...Tube member, 3, 3a, 3d, 3e...Composite spring structure, 4...Ring member, 5, 5a, 5d, 5e...Tube main body, 6...Folded portion of tube member (7) containing spring steel wire (1) therein, 7...Tube member containing spring steel wire (1) therein, 8...Elastic tube, 9, 9a...Fastener, 10, 10a, 10b, 10c...Stretch cord capable of applying pressure, acupressure, and stretching

Claims

1. A stretch cord is provided which has a tube main body with a composite spring structure in which a spring steel wire is passed through a tube member, both ends of which are connected to ring members, and which can be worn by wrapping it around the body to provide pressure, acupressure, and stretching, When the stretch cord is wrapped around the body and worn, the elasticity of the spring steel wire exerts a pressure effect on the muscles and tendons, preventing them from being pushed outward. When the stretch cord is wound around the body and worn while moving, the elasticity of the spring steel wire stimulates the muscles and tendons, providing acupressure effects to loosen stiff muscles and tendons. This stretch cord is capable of applying pressure, acupressure and stretching, and is characterized in that when the stretch cord is wound around the body in a spiral shape and worn, the force of the spring steel wire trying to return gives a stretching effect to the muscles and tendons, suppressing contraction of the muscles and tendons.

2. The stretch cord according to claim 1, which can be applied with pressure, finger pressure, and stretching, A stretch cord capable of applying pressure, acupressure, and stretching, characterized in that both ends of the main tube portion are connected to the ring members by a structure in which the ring members are sandwiched at the folded-back portion of the tube member containing the spring steel wire inside.

3. The stretch cord according to claim 1, which can be applied with pressure, finger pressure, and stretching, The stretch cord is characterized in that the tube main body has a structure in which the composite spring structure is covered with an elastic tube, and is capable of applying pressure, acupressure, and stretching.

4. The stretch cord according to claim 1, which can be applied with pressure, finger pressure, and stretching, The stretch cord is characterized in that the tube main body has a structure in which the composite spring structure is not covered with an elastic tube, and is capable of applying pressure, acupressure, and stretching.

5. The stretch cord according to claim 1, which can be applied with pressure, finger pressure, and stretching, A stretch cord capable of applying pressure, acupressure and stretching, characterized in that a stopper is attached to the ring member.

6. The stretch cord according to claim 1, which can be applied with pressure, finger pressure, and stretching, A stretch cord capable of applying pressure, acupressure, and stretching, characterized in that the tube main body comprises two tube main bodies connected to each other.

7. The stretch cord according to claim 1, which can be applied with pressure, finger pressure, and stretching, A stretch cord capable of applying pressure, acupressure, and stretching, characterized in that the stretch cord comprises three tube main bodies connected in series.

8. The stretch cord according to claim 1, which can be applied with pressure, finger pressure, and stretching, The stretch cord is capable of applying pressure, acupressure, and stretching, and is characterized in that the main tube portion has a "composite spring structure in which multiple spring steel wires are passed through a tube member as the spring steel wire," with both ends connected to the ring member.

9. The stretch cord according to claim 1, which can be applied with pressure, finger pressure, and stretching, The main tube portion is a stretch cord that can be used for pressure, acupressure, and stretching, characterized in that both ends of the "multiple composite spring structures having a structure in which one or more spring steel wires are passed through a tube member as the spring steel wire" are connected to the ring member.

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