Loop string fixing device and method for forming loop string fixing device

Abstract

To provide a loop string fixing device and a method for forming the loop string fixing device, the loop string fixing device including a stopper for fixing a loop string length-adjustably to a support body, such as a straight bar and a hook.SOLUTION: A loop string fixing device includes a stopper 20 used for fixing a loop string, where the string extends in a longitudinal direction and is curved at a middle portion to form a loop part. The string includes bifurcately extending first and second string extensions of the loop part, and first and second string end portions located at ends of the first and second string extensions. The stopper includes a front plate 21 that is formed with first and second through hole rows 22, 26 laterally spaced and extending in a height direction. Each of the first and second through hole rows includes upper through holes 23, 27 and lower through holes 24, 28 located below the upper through holes.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a loop string fixing device, and more particularly, to a loop string fixing device including a stopper that adjustably fixes a loop string, in which the string is curved and arranged so that a loop is formed at one end, in a state of being wound around a support, and a method for forming the loop string fixing device.

Background Art

[0002] FIG. 1 is a drawing illustrating a known pull-up handle using a loop string. The pull-up handle is an auxiliary device used, for example, when performing a pull-up exercise or the like. FIG. 2 illustrates a form in which the pull-up handle is fixed to a straight bar.

[0003] The pull-up exercise is an exercise for improving the muscle strength of the upper body of the user. Generally, the pull-up exercise is performed by gripping a straight bar fixed at a determined height and lifting the body weight.

[0004] When using a straight bar, an overhand grip in which the back of the user's hand grips in the direction facing the user and an underhand grip in which the palm of the user's hand grips in the direction facing the user are possible. When the grip angle is changed during the pull-up exercise, the types and positions of the muscles receiving the stimulus change, and the exercise effect can be improved, but there is a limit to using a straight bar. The pull-up handle helps to perform the pull-up exercise in various grip postures.

[0005] In addition, the straight bar is generally provided in a form fixed at a determined height so as to be able to support the body weight. Therefore, when the position of the straight bar does not match the height of the user, it is difficult to perform the pull-up exercise.

[0006] In this way, the pull-up handle illustrated in FIG. 1 is used to help perform exercises suitable for the user's height and muscle strength state and to assist in performing various exercises that can strengthen muscle strength.

[0007] Referring to FIG. 1, the pull-up handle 2 includes a handle 8 for gripping, in which the string S is arranged with loops formed at both ends and both ends of the loop string 3 are fixed.

[0008] The loop string 3 means a string formed by curving the middle part of a string (such as a cord, rope, or string) extending in the longitudinal direction and arranging it so that a loop is formed in the middle part. In this specification, the string forming the loop is called the loop string 3, the loop part 4 is located at one end of the loop string 3, the bifurcated ends of the loop string located on the opposite side of the loop part 4 are called the string ends 5 and 6.

[0009] Referring to FIG. 2, when considering the order of fixing the pull-up handle 2 to the straight bar 1, it is as follows.

[0010] First, the loop part 4 of the loop string 3 is wound over the straight bar 1 so that the loop string 3 wraps around the straight bar 1.

[0011] After that, the handle 8 is passed through the loop part 4 from below the straight bar 1 and moved in the opposite direction, and then the handle 8 is pulled and tightened, and the pull-up handle 2 is fixed to the straight bar 1.

[0012] The form in which the loop string 3 wraps around and is fixed to the straight bar 1 is called a lark's head knot or a tag knot.

[0013] The name "tag knot" is derived from mainly fixing the tag of an article in the form of the above knot.

[0014] For the pull-up exercise, two pull-up handles 2 are fixed to the straight bar 1. The user holds the handle 8 of the pull-up handle 2 by hand and performs exercises such as pull-up exercises.

[0015] The pull-up handle can be used not only for pull-up exercises but also for various exercises. For example, it is possible to perform an exercise of lifting a weight with the pull-up handle fixed to a weight hook. Also, with the feet touching the ground, it is possible to perform an exercise of pulling up the upper body while holding the pull-up handle with both hands and supporting the body in an inclined state.

[0016] In this way, the pull-up handle is not limited to pull-up exercises, and it is possible to fix a loop string to an object such as a straight bar or a weight to perform various exercises, and it functions to support a load.

[0017] Such a known method using a tag knot is the most common method of hanging and fixing a pull-up handle equipped with a known loop string to a support, but since the length of the loop string cannot be adjusted, the height of the handle cannot be adjusted.

[0018] Therefore, when trying to perform an exercise by attaching a pull-up handle to a support such as a straight bar or a hook at a fixed height, there was a problem that the loop string had to be replaced according to the user's height. Also, in order to remove the pull-up handle from the support, there was an inconvenience that the knotted and tightened loop part had to be removed and the handle had to be further pulled out. Summary of the Invention Problems to be Solved by the Invention

[0019] The present invention has been devised to solve the above-described problems, and an object thereof is to provide a loop string fixing device including a stopper for adjustably fixing the length of a loop string to a support such as a straight bar or a hook, and a method for forming the loop string fixing device.

Means for Solving the Problems

[0020] The loop string fixing device according to an embodiment of the present invention is used to fix a loop string having a loop portion formed by curving an intermediate portion of a string extending in a length direction, and first and second string extension portions extending in two branches of the loop portion, and first and second string ends located at ends of the first and second string extension portions. The loop string fixing device includes a front plate formed with first and second through-hole rows spaced apart from each other on a side surface and extending in a height direction, and each of the first and second through-hole rows includes a stopper including an upper through-hole and a lower through-hole located below the upper through-hole.

[0021] According to an embodiment of the present invention, each of the first and second through-hole rows forms a path along which each of the first and second string extension portions extends. The upper through-hole forms a path through which the first or second string extension portion penetrates from the back surface toward the front surface. The lower through-hole forms a path through which the first or second string extension portion drawn out from the front surface through the upper through-hole penetrates from the front surface toward the back surface. After the loop string is hung on a support, when the loop portion is pulled toward the stopper and arranged to be located between the back surface of the front plate and the first and second string extension portions that have passed through the lower through-hole, a knot is formed.

[0022] According to an embodiment of the present invention, the stopper includes both side walls extending so as to intersect the front plate in the direction of the back surface of the front plate, and the both side walls are formed to guide the loop portion to extend along the both side walls without spreading.

[0023] According to the method for forming a loop string fixing device according to another embodiment of the present invention, it includes the step of providing a stopper having a front plate formed with first and second through-hole rows spaced apart from each other on the side surface and extending in the height direction. Here, each of the first and second through-hole rows includes an upper through-hole and a lower through-hole positioned below the upper through-hole. Further, the middle portion of a string extending in the length direction is curved to form a loop portion, and a loop string including first and second string extension portions extending in a bifurcated manner from the loop portion and first and second string end portions positioned at the ends of the first and second string extension portions is provided. And each of the first and second string extension portions passes through from the back surface to the front surface through the corresponding upper through-hole, and the loop string and the stopper are assembled so that each of the first and second string extension portions pulled out to the front surface through the upper through-hole passes through from the front surface to the back surface through the corresponding lower through-hole to provide a loop string fixing device.

[0024] According to another embodiment of the present invention, the loop string fixing device can form a knot in such a manner that the loop string is hung on a support and the loop portion is pulled toward the stopper, and the loop portion is positioned between the back surface of the front plate and the first and second string extension portions that have passed through the lower through-hole.

[0025] According to another embodiment of the present invention, the stopper includes both side walls extending so as to intersect the front plate in the direction of the back surface of the front plate, and the both side walls are formed so that the loop portion extends along the both side walls without spreading.

Advantages of the Invention

[0026] According to the present invention, the loop string can be fixed to a support such as a straight bar or a hook in a length-adjustable manner.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Embodiments for Carrying Out the Invention

[0028] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0029] Since the present invention can be modified in various ways and can have various forms, embodiments will be described in detail in the text. However, this is not intended to limit the present invention to specific disclosed forms, and it should be understood to include all modifications, equivalents, or alternatives included in the spirit and technical scope of the present invention. Similar reference numerals have been used for similar components while explaining each drawing.

[0030] The above terms are used only for the purpose of distinguishing one component from another. The terms used in this application are merely used to explain specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0031] FIG. 3 and FIG. 4 are perspective views of the front and back views of a stopper forming a loop string fixing device according to an embodiment of the present invention, FIG. 5 is a drawing showing a form in which first and second string extensions are assembled to the stopper in the loop string fixing device according to an embodiment of the present invention, and FIGS. 6 and 7 are drawings showing a form in which a loop string is wound around a straight bar in the loop string fixing device according to an embodiment of the present invention, and a loop portion forms a knot with first and second string extensions through a stopper and is fixed.

[0032] A loop string fixing device 10 according to the present invention includes a stopper 20 for fixing a loop string, and the stopper 20 is used to fix the loop string 11 in a length-adjustable manner.

[0033] The loop string 11 is arranged by curving an intermediate portion of a string S extending in the length direction so that a loop portion 12 is formed, and the string S extending in a bifurcated manner at the loop portion 12 is referred to as first and second string extensions 15 and 17, and the ends of the first and second string extensions 15 and 17 facing the loop portion 12 are referred to as first and second string ends 14 and 16.

[0034] Referring to FIGS. 3 and 4, a stopper 20 for fixing a loop string according to an embodiment of the present invention includes a front plate 21 formed with through holes. Further, it includes side plates 32, 34 extending so as to intersect the front plate 21 on the back side of the front plate 21.

[0035] The front plate 21 includes two rows of through holes 22, 26, and each row of through holes 22, 26 includes two through holes 23, 24, 27, 28. The through holes 23, 24, 27, 28 can be formed as circular holes.

[0036] Each row of through holes 22, 26 in the front plate 21 forms a path through which the first and second string extensions 15, 17 pass.

[0037] The side walls 32, 34 extend intersecting the front plate 21 on the back side of the front plate 21. The side walls 32, 34 function to maintain the loop portion 12 that forms a knot with the first and second string extensions 15, 17 on the back of the front plate 21. Thereby, the loop portion 12 does not spread and maintains a contact state with the first and second string extensions 15, 17. When tension is applied in such a contact state, a tightening occurs in which the string extension and the loop portion are bound to each other by frictional force. Such tightening induces a state like jamming and forms a knot that resists the pulling force on the string end side at the binding between the loop portion and each string extension.

[0038] Referring to FIG. 5, the assembly relationship between the loop string and the stopper in the loop string fixing device will be described.

[0039] The first and second string extensions 15, 17 form branch points on both sides of the loop portion 12 and extend respectively toward the first and second string ends 14, 16.

[0040] The first string extension part 15 extends through the first through-hole row 22 of the stopper 20. The first string extension part 15 extending toward the first string end part 14 extends to the back surface B of the front plate 21, is inserted into the upper through-hole 23 among the first through-hole rows 22, and is drawn out to the front surface F of the front plate 21. Then, it is inserted into the lower through-hole 24 on the front surface F and is drawn out to the back surface B of the front plate 21 and extends.

[0041] The second string extension part 17 extends through the second through-hole row 26. The second string extension part 17 extending toward the second string end part 16 extends to the back surface B of the front plate 21, is inserted into the upper through-hole 27 among the second through-hole rows 26, and is drawn out to the front surface F of the front plate 21, and thereafter, is inserted into the lower through-hole 28 and extends downward toward the back surface B of the front plate 21.

[0042] The position of the stopper 20 can be adjusted by moving the position of the stopper 20 along the loop string 11. Since the loop part 12 of the loop string 11 is fixed to the stopper 20 by the loop string fixing device 10, the position adjustment of the stopper 20 with respect to the loop string 11 corresponds to adjusting the length of the loop string 11 wound around the support.

[0043] Referring to FIGS. 6 and 7, a form in which a knot is formed through the stopper in the loop string fixing device and the loop string is fixed in position will be described.

[0044] Referring to FIG. 6, after passing the loop string 11 over a support 100 such as a straight bar and hanging it in a state where the direction is changed, after pulling the loop part 12 to the position of the stopper 20, after passing the loop part 12 over the back surface B of the stopper 20, the loop string 11 is pulled.

[0045] Referring to FIG. 7, as seen in the enlarged portion A, the loop portion 12 is located between the first and second string extension portions 15, 17 which are drawn out through the back surface B of the stopper 20 and the lower through holes 24, 28 and extend downward. At this time, the downward tension acting on the first and second string extension portions 15, 17 and the upward tension acting on the loop portion 12 act to generate a tightening force that fixes the loop portion 12. In this specification, the state where the string is fixed as described above through the medium of the stopper 20 is referred to as a knot being formed. The knot seen in FIG. 7 is similar to the formation principle of a tag knot.

[0046] When tension acts on the loop string 11, the both side walls 32, 34 are positioned such that the first and second string extension portions 15, 17 and the loop portion 12 form a tightened state. Thereby, the loop portion 12 does not spread by the both side walls 32, 34, and extends upward along the back surface B of the stopper 20 while pressing the first and second string extension portions 15, 17.

[0047] Referring to FIG. 7, it can be seen that both side strings of the loop portion 12 are pressed in the direction of the side walls 32, 34 by the strings passing through the through holes 23, 24, 27, 28. Without the side walls 32, 34, the loop portion 12 can spread after contacting the first and second string extension portions 15, 17 that have passed through the lower through holes 24, 28 from below the lower through holes 24, 28. In this case, the fixing force for forming the knot may be weakened. However, when the loop portion 12 extends at the back surface B of the stopper 20 while contacting the first and second string extension portions 15, 17 by the side walls 32, 34, jamming between the strings occurs and the knot is firmly fixed.

[0048] FIG. 8 is for explaining that the length of the loop string is adjusted by the loop string fixing device according to the present invention. By adjusting the position of the stopper 20 with the loop string fixing device, the length of the loop string 11 located between the support 100 and the stopper 20 is changed. Since the loop string 11 overlaps between the support 100 and the stopper 20, when the position of the stopper is changed, the position of the string end with respect to the support 100 is adjusted. Since the position of the string end with respect to the support 100 corresponds to the length of the loop string fixed to the support, the length of the loop string can be adjusted.

[0049] Also, referring to FIGS. 6 and 7, FIGS. 6 and 7 illustrate an embodiment in which the loop string fixing device according to the embodiment of the present invention is realized by a pull-up handle.

[0050] As shown in FIGS. 6 and 7, the first and second string ends 14, 16 are fixed to the bar 30, and by changing the position of the stopper 20, the fixing position of the loop portion 12 is changed, whereby the position of the bar 30 with respect to the support 100, that is, the height with respect to the ground can be changed.

[0051] FIG. 9 illustrates an embodiment in which the loop string fixing device according to the embodiment of the present invention is realized by a swing.

[0052] Referring to FIG. 9, two loop string fixing devices 10a, 10b are provided, and the respective loop string fixing devices 10a, 10b are coupled to the side surface of the seat 40. Both side string ends of one loop string fixing device 10a are coupled to one side surface of the seat 40, and both side string ends of the other loop string fixing device 10b are coupled to the other side surface of the seat 40.

[0053] The height of the seat 40 with respect to the support 100 is adjusted in such a manner that the overlapping length of the loop string 11 is adjusted by each of the loop string fixing devices 10a and 10b. In FIG. 9, it can be seen that two swings are arranged at different heights from each other. Thus, when using the loop string fixing device, it is possible to adjust the height of an object supported by the loop string fixing device with respect to the support, which is the seat in FIG. 9.

[0054] As another embodiment of the present invention, the both-side string ends can be joined to each other by the loop string fixing device. Such an embodiment is another example of realizing a pull-up assisting device using the loop string fixing device. The string has sufficient elasticity, and the user can touch the lower-positioned loop string with the feet and perform a pull-up movement with the help of the elastic string. The user can adjust the length of the loop string according to the straight bar and his / her height.

[0055] Although the present invention has been described in detail through the representative embodiments above, the scope of the rights of the present invention is not limited to the description and expression of the embodiments described above. By obvious changes and substitutions in the technical field to which the present invention pertains, the scope of the rights of the present invention is not limited, and the scope of the rights of the present invention is determined not only by the scope of the claims described below, but also by those equivalent to this scope of the claims.

Claims

1. A loop string fixing device including a stopper (20) used to fix a loop string (11) which forms a loop part (12) by bending an intermediate part of a string extending in the longitudinal direction, and includes first and second string extension parts (15, 17) extending in a bifurcated manner from the loop part (12), and first and second string end parts (14, 16) positioned at the ends of the first and second string extension parts (15, 17). The stopper (20) is a front plate (21) having first and second through-hole rows (22, 26) formed on side surfaces thereof so as to be spaced apart from each other and extending in the height direction, each of the first and second through-hole rows (22, 26) including an upper through-hole (23, 27) and a lower through-hole (24, 28) positioned below the upper through-hole (23, 27), the stopper (20) including both side walls (32, 34) extending so as to intersect the front plate (21) in the direction of the back surface (B) of the front plate (21), the both side walls (32, 34) being formed such that when the loop part (12) forms a knot in the stopper (20), the loop part (12) extends along the both side walls (32, 34) without spreading, the loop string fixing device.

2. Each of the first and second through-hole rows (22, 26) forms a path along which each of the first and second string extension parts (15, 17) extends, the upper through-hole (23, 27) forms a path through which the first or second string extension part (15, 17) penetrates from the back surface (B) of the front plate (21) toward the front surface (F) of the front plate (21), the lower through-hole (24, 28) forms a path through which the first or second string extension part (15, 17) drawn out to the front surface (F) through the upper through-hole (23, 27) penetrates from the front surface (F) toward the back surface (B), The loop string fixing device according to claim 1, which can be used in such a manner that the loop string (11) is hung on a support (100), the loop part (12) is pulled toward the stopper (20), and the loop part (12) is arranged to be positioned between the back surface (B) of the front plate (21) and the first and second string extension parts (15, 17) that have passed through the lower through-holes (24, 28).

3. A loop string fixing device is provided, which is used to fix a loop string (11) that forms a loop portion (12) by curving an intermediate portion of a string extending in the length direction, and includes first and second string extension portions (15, 17) extending in two branches of the loop portion (12), and first and second string end portions (14, 16) located at ends of the first and second string extension portions (15, 17). The stopper (20) is a front plate (21) having first and second through-hole rows (22, 26) formed at intervals on the side surface and extending in the height direction. Each of the first and second through-hole rows (22, 26) includes an upper through-hole (23, 27) and a lower through-hole (24, 28) located below the upper through-hole (23, 27). Each of the first and second through-hole rows (22, 26) forms a path through which each of the first and second string extension portions (15, 17) extends. The upper through-holes (23, 27) form a path through which the first or second string extension portion (15, 17) passes from the back surface (B) of the front plate (21) toward the front surface (F) of the front plate (21). The lower through-holes (24, 28) form a path through which the first or second string extension portion (15, 17) drawn out to the front surface (F) through the upper through-holes (23, 27) passes from the front surface (F) toward the back surface (B). The loop string fixing device can be used in such a way that the loop string (11) is hung on a support (100), the loop portion (12) is pulled toward the stopper (20), and the loop portion (12) is arranged to be located between the back surface (B) of the front plate (21) and the first and second string extension portions (15, 17) that have passed through the lower through-holes (24, 28).

4. providing a stopper (20) including a front plate (21) having first and second through-hole rows (22, 26) formed at intervals on the side surface and extending in the height direction, wherein each of the first and second through-hole rows (22, 26) includes an upper through-hole (23, 27) and a lower through-hole (24, 28) located below the upper through-hole (23, 27). Curving an intermediate portion of a string extending in the length direction to form a loop portion (12), and providing a loop string (11) having first and second string extension portions (15, 17) extending in two branches of the loop portion (12) and first and second string end portions (14, 16) located at ends of the first and second string extension portions (15, 17). Assembling the loop string (11) and the stopper (20) to provide a loop string fixing device (10) such that each of the first and second string extension portions (15, 17) passes through from the back surface (B) of the front plate (21) to the front surface (F) of the front plate (21) through the corresponding upper through holes (23, 27), and each of the first and second string extension portions (15, 17) drawn out to the front surface (F) through the upper through holes (23, 27) passes through from the front surface (F) to the back surface (B) through the corresponding lower through holes (24, 28). The stopper (20) includes side walls (32, 34) extending so as to intersect the front plate (21) in the direction of the back surface (B) of the front plate (21). A method for forming a loop string fixing device, wherein the side walls (32, 34) are formed such that when the loop portion (12) forms a knot in the stopper (20), the loop portion (12) extends along the side walls (32, 34) without spreading.

5. The method for forming a loop string fixing device according to claim 4, wherein the loop string fixing device (10) can be used in a manner that the loop string (11) is hung on a support (100), the loop portion (12) is pulled toward the stopper (20), and the loop portion (12) is arranged to be located between the back surface (B) of the front plate (21) and the first and second string extension portions (15, 17) that have passed through the lower through holes (24, 28) to form a knot.

6. Providing a stopper (20) having a front plate (21) formed with first and second rows of through-holes (22, 26) that are spaced apart from each other on the side surface and extend in the height direction, where each of the first and second rows of through-holes (22, 26) includes an upper through-hole (23, 27) and a lower through-hole (24, 28) positioned below the upper through-hole (23, 27). Forming a loop portion (12) by curving an intermediate portion of a string extending in the length direction, and providing a loop string (11) having first and second string extension portions (15, 17) extending bifurcated from the loop portion (12) and first and second string end portions (14, 16) positioned at the ends of the first and second string extension portions (15, 17). Assembling the loop string (11) and the stopper (20) to provide a loop string fixing device (10) such that each of the first and second string extension portions (15, 17) passes through the corresponding upper through-hole (23, 27) from the back surface (B) to the front surface (F) of the front plate (21), and each of the first and second string extension portions (15, 17) drawn out to the front surface (F) through the upper through-hole (23, 27) passes through the corresponding lower through-hole (24, 28) from the front surface (F) to the back surface (B). The loop string fixing device (10) can be used in a manner of forming a knot by arranging such that the loop string (11) is hung on a support (100), the loop portion (12) is pulled toward the stopper (20), and the loop portion (12) is positioned between the back surface (B) of the front plate (21) and the first and second string extension portions (15, 17) passing through the lower through-holes (24, 28). A method of forming a loop string fixing device.

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