Rope set and rope
The rope set with protrusions and locking grooves addresses the challenges of secure and adjustable rope attachment, offering improved ease of use and versatility.
Patent Information
- Application Number
- JP2023164080
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-27
- Publication Date
- 2025-04-08
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing rope attachment methods, such as tying or using tension adjusting knot ball engaging devices, are cumbersome and require multiple knot balls, making it difficult to easily attach, detach, and adjust the tension of ropes securely.
A rope set comprising a rope with protrusions fixed at regular intervals and a rope fastener with locking grooves that securely engage the protrusions, allowing for easy attachment and detachment, as well as adjustable tension.
The rope set enables easy and secure attachment to members, allows for adjustable tension, and facilitates easy connection and cutting of ropes, enhancing usability and versatility.
Smart Images

Figure 2025054881000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a rope set and a rope that can be easily attached to a member. [Background technology]
[0002] The simplest way to secure a rope (including string) to a pole or other component is to tie the rope to the component, but it is not easy to secure the rope firmly so that it does not come loose. Also, when tying a rope to two components and stretching it between them, it is not easy to keep the rope taut.
[0003] Nowadays, many devices have been developed that can easily secure a rope to a member. For example, a rope with a hook attached to the end, or a connector such as an S-hook that connects a rope to a member, are commercially available. A device has also been developed that can adjust the tension of a rope stretched between two members (see, for example, Patent Document 1).
[0004] The tension adjustment knot ball fastening device and the tensioning string incorporating it described in Patent Document 1 have adjustment knot balls pre-attached to the tensioning string at appropriate intervals, and the tension of the tensioning string is adjusted by fastening these knot balls to the tension adjustment knot ball fastening device. [Prior art documents] [Patent documents]
[0005] [Patent Document 1] JP 2005-21302 A Summary of the Invention [Problem to be solved by the invention]
[0006] The tensioning cord described in Patent Document 1 requires the preparation of an adjustment knot ball in advance, but it is not possible to determine in advance which knot ball will actually be used. This requires the preparation of multiple knot balls, which is time-consuming. It is possible to set a knot ball on the cord on site and use it according to the situation at the site, but this method is not much different from the conventional method of tying the cord.
[0007] Furthermore, the tension-adjusting knot ball fastener described in Patent Document 1 can fasten two knot balls, but structurally it is necessary to make one of the knot balls after passing the string through a hole provided in the tension-adjusting knot ball fastener. As described above, the tension-adjusting knot ball fastener described in Patent Document 1 and the tensioning string incorporating it are excellent in that they have a simple structure and can adjust the tension of the string, but as mentioned above, it is necessary to provide a knot ball, which is time-consuming.
[0008] To make ropes easier to use, it is important that they can be easily fixed to components and that the tension of the rope can be adjusted, as well as that they can be easily removed once attached, and that they can be easily connected to other ropes.
[0009] An object of the present invention is to provide a novel rope set and rope that can be used in a variety of ways and can be easily attached and detached from members. [Means for solving the problem]
[0010] The present invention is a rope set characterized by comprising a rope having protrusions fixed at regular intervals along the longitudinal direction of the rope body, and a rope fastener having two or more locking grooves into which the protrusions fit and into which the fitted protrusions are engaged.
[0011] In the rope set of the present invention, the rope fastener has a slit-shaped opening groove leading to the outside through which the rope body can be inserted, and the locking groove is connected to the opening groove, and the rope body can be fitted into the locking groove from the opening groove.
[0012] The rope set according to the present invention is characterized in that the protrusions are grouped into pairs, and multiple pairs of protrusions are fixed to the rope body at regular intervals in the longitudinal direction.
[0013] In the rope set of the present invention, the locking groove has an insertion opening for the protrusion at its tip and an locking portion at its end for locking the inserted protrusion, and when one of the two locking grooves is designated the first locking groove and the other is designated the second locking groove, the position of the insertion opening relative to the rope fastener is reversed between the first locking groove and the second locking groove.
[0014] The present invention is a rope that can be used as a rope in the rope set, and has protrusions fixed at regular intervals along the longitudinal direction of the rope body, the rope being long and capable of being cut at any position, and the cut rope being capable of being connected via the rope fastener. Effect of the Invention
[0015] According to the present invention, it is possible to provide a novel rope set and rope that can be used in a variety of ways and can be easily attached and detached from components. [Brief description of the drawings]
[0016] [Figure 1] 1 is a configuration diagram of a rope set 1 according to a first embodiment of the present invention. [Diagram 2] 1A to 1C are diagrams for explaining the structure of a rope fastener 30 of the rope set 1 according to the first embodiment of the present invention. [Diagram 3] 1 is an example of rope sets 1 and 2 according to the first and second embodiments of the present invention. [Figure 4] FIG. 2 is a diagram for explaining an example of use of an example of the rope set 1 according to the first embodiment of the present invention. [Diagram 5] 1 shows a modified example of the rope 10 constituting the rope set 1, 2 according to the first embodiment of the present invention. [Figure 6] 11 is a diagram for explaining the structure of a rope fastener 31 of a rope set 2 according to a second embodiment of the present invention. FIG. [Figure 7] FIG. 11 is a diagram for explaining an example of use of an example of the rope set 2 according to the second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0017] FIG. 1 is a diagram of the rope set 1 according to the first embodiment of the present invention, in which (A) is a front view of the rope 10, (B) is a perspective view of the rope fastener 30, and (C) is a side view of the rope fastener 30. FIG. 2 is a diagram for explaining the structure of the rope fastener 30 of the rope set 1 according to the first embodiment of the present invention, in which (A) is a perspective view showing the state in which the rope 10 is attached to the rope fastener 30, (B) is a side view showing the state in which the rope 10 is attached to the rope fastener 30, and (C) is a cross-sectional view showing the state in which the rope 10 is attached to the rope fastener 30. FIG. 3 is an example of the rope sets 1 and 2 according to the first and second embodiments of the present invention, and FIG. 4 is a diagram for explaining a usage example using the example of the rope set 1 according to the first embodiment of the present invention. FIG. 5 is a modified example of the rope 10 constituting the rope sets 1 and 2 according to the first embodiment of the present invention.
[0018] In each drawing and description, the X-axis, Y-axis, and Z-axis correspond to the X-axis, Y-axis, and Z-axis of a three-dimensional Cartesian coordinate system, and hereinafter, the description will be given assuming that the axial direction of the rope 10 is parallel to the Y-axis, the top surface 36 and bottom surface 38 of the rope fastener 30 are parallel to the XY plane, and the axis of the locking groove 40 (40A, 40B) is parallel to the Y-axis. Additionally, the direction of the arrow on the X-axis is up, the direction of the arrow on the Y-axis is right, and the direction of the arrow on the Z-axis is rear or back.
[0019] The rope set 1 of the first embodiment of the present invention comprises a rope 10 having protrusions 15 (15a, 15b) fixed at regular intervals in the longitudinal direction (Y direction) of a rope body 12, and a rope fastener 30 having two locking grooves 40 (40A, 40B) into which the protrusions 15 fit and into which the fitted protrusions 15 are engaged.
[0020] The rope body 12 is not particularly limited, and any known rope, string, or wire can be used. The material of the rope body 12 is also not particularly limited, and it may be made of synthetic resin, metal, hemp, cotton, or other natural materials. The diameter of the rope body 12 is also not particularly limited, and it may be a relatively thin one for home use or a thick one for commercial use.
[0021] The rope 10 has protrusions 15 fixed at regular intervals in the longitudinal direction (Y direction) of the rope body 12, so even if a portion is cut off and used, a rope 10 with the same structure can be obtained. Furthermore, two ropes 10 can be connected via a rope fastener 30 as shown in Fig. 4(B). Thus, a long rope 10 can be manufactured, wound up and stored on a reel or the like, and cut to the required length for use.
[0022] The protrusions 15 are members that fit into and engage with the locking grooves 40 provided in the rope fastener 30, and are fixed at regular intervals in the longitudinal direction of the rope body 12. The protrusions 15 can be referred to as locking bodies because they fit into and engage with the locking grooves 40.
[0023] About 2 / 3 of the projection 15 in the longitudinal direction has a cylindrical shape, and the remaining 1 / 3 has a tapered curved surface. The outer diameter D0 of the cylindrical portion of the projection 15 is larger than the outer diameter D of the rope body 12. The shape of the projection 15 is not particularly limited as long as it can be fitted into and locked into the locking groove 40 of the fastener 30, but it is preferable that the shape is easy to manufacture and easy to fit into the locking groove 40. In this respect, it is preferable that the cross section of the projection 15 is circular.
[0024] The length of the protrusion 15 is not particularly limited, but is typically about length / outer diameter of 1 to 3. If the length of the protrusion 15 is extremely short, it will be difficult to fit the protrusion 15 into the engagement groove 40 and to remove it from the engagement groove 40. On the other hand, if the protrusion 15 is made extremely long, it will protrude from the engagement groove 40 and is uneconomical.
[0025] In the rope 10 of the first embodiment, two relatively short protrusions 15a, 15b are arranged in pairs, and the two protrusions 15a, 15b are arranged to face each other with a small gap Δt between them. This is one set, and multiple sets of protrusions 15 are fixed to the rope body 12 at a constant interval L (see Figs. 1, 3, and 4). By arranging the two protrusions 15a, 15b with a gap Δt between them, the rope body 12 can be bent even in the part of the gap Δt. This increases the degree of freedom of the rope 10 and improves usability.
[0026] The interval between the projections 15 fixed to the rope body 12, in other words the interval L between adjacent projections 15, is not particularly limited and may be appropriately determined depending on the application.
[0027] The method of fixing the protrusions 15 to the rope body 12 is not particularly limited as long as the protrusions 15 can be firmly fixed to the rope body 12. Methods of fixing the protrusions 15 to the rope body 12 include injection molding (insert molding) if the protrusions 15 are made of synthetic resin, and welding or brazing if the protrusions 15 and the rope body 12 are made of metal.
[0028] The protrusions fixed to the rope 10 are not limited to those shown in Figures 1 to 4. As shown in Figure 5, the protrusions may be fixed one by one at equal intervals to the rope body 12. The protrusion 17 in Figure 5(A) has a spherical shape, the protrusion 19 in Figure 5(B) has a cylindrical central portion in the longitudinal direction and curved shapes at both ends, and the protrusion 21 in Figure 5(C) and the protrusion 23 in Figure 5(D) both have a cylindrical shape.
[0029] The protrusions 17, 19, 21, and 23 shown in Fig. 5 all have a circular cross section, but the protrusions fixed to the rope body 12 may have a rectangular cross section. Therefore, protrusions in the shape of a prism or a truncated pyramid may be used. Other than the above, protrusions having a circular cross section include truncated cones, spherical bands, spherical crowns, spherical truncates, ellipses, and spindles. In Fig. 5, the protrusions are arranged one by one with an interval L between them, but multiple sets of protrusions may be arranged, each set consisting of two protrusions, as in the case of the protrusion 15 in the first embodiment.
[0030] The rope fastener 30 has a thick disk-shaped main body 32 and is provided with two locking grooves 40 (40A, 40B) into which the protrusions 15 fixed to the rope 10 fit and lock. One (a set of) locking bodies fits into each of the locking grooves 40A, 40B. In this embodiment, the protrusions 15a, 15b form one (a set of) locking bodies 15, so that the protrusions 15 (15a, 15b) fit into the respective locking grooves 40A, 40B.
[0031] The two locking grooves 40A, 40B are provided so as to face each other on the side surface 33 and so that the central axes of the two locking grooves 40A, 40B are parallel to each other. Since the locking grooves 40A and 40B have the same structure, the structure of the locking groove 40A will be described below, and for the locking groove 40B, the suffix A will be replaced with the suffix B in the description of the locking groove 40A.
[0032] The locking groove 40A has a diameter D1 that is approximately the same as the diameter D0 of the protrusion 15, and the protrusion 15 fits into it with almost no gap. One end 42A of the locking groove 40A faces the side surface 33 and serves as an insertion opening 42A for the protrusion 15. The locking groove 40A does not penetrate the side surface 33, and the other end 44A of the locking groove is located inside the rope fastener 30. The other end 44A of the locking groove serves as a locking portion 44A that locks the protrusion 15 that fits into the locking groove 40A. The locking portion 44A can be said to be a stopper.
[0033] The length of the locking groove 40A only needs to be long enough to accommodate the entire protrusion 15, and the length of the locking groove 40A and the length of the protrusion 15 are approximately the same.
[0034] The locking groove 40A communicates with a slit-shaped open groove 50A provided so as to face the side surface 33 of the main body 32. The width W of the open groove 50A is slightly larger than the diameter D of the rope main body 12 and smaller than the outer diameter D0 of the protrusion 15. Therefore, the rope main body 12 can be fitted from the open groove 50A toward the locking groove 40A, but the protrusion 15 cannot be fitted.
[0035] The open groove 50A has a semicircular end 52A (X direction) and is provided so that the central axis of the diameter of the semicircle coincides with the central axis of the locking groove 40A. Therefore, the locking portion 44A of the locking groove 40A is a stepped portion, and when the protrusion 15 is fitted into the locking groove 40A, the protrusion 15 is locked to the locking portion 44A, and the rope main body 12 connected to the protrusion 15 comes into contact with the inner wall of the end 52A of the open groove 50A.
[0036] The locking grooves 40A and 40B have the same structure, but the positions of the insertion opening 42B for the protrusion 15 and the locking portion 44B of the locking groove 40B are inverted relative to the positions of the insertion opening 42A for the protrusion 15 and the locking portion 44A of the locking groove 40A.
[0037] The diameters of the top surface 34 and bottom surface 35 of the main body 32 of the rope fastener 30 need only be large enough to allow the locking groove 40 to have the required length, and the thickness of the rope fastener 30 need only be about twice the diameter D1 of the locking groove 40. The main body 32 does not need to be unnecessarily large as long as it has the required strength when the two locking grooves 40A, 40B are provided and the rope 10 is attached thereto.
[0038] The material of the rope fastener 30 is not particularly limited, but is typically a synthetic resin or a metal.
[0039] When fixing the rope 10 to the rope fastener 30, the rope body 12 is aligned approximately parallel to the axial direction of the locking groove 40, and the rope body 12 is pushed into the open groove 50 of the rope fastener 30 until it abuts against the locking groove 40, and then the rope body 12 is pulled in the direction of the locking portion 44 of the locking groove 40, thereby allowing the rope 10 to be easily fixed. When removing the rope 10 fixed to the rope fastener 30, the rope body 12 can be easily removed by pulling it toward the insertion opening 42 of the locking groove 40.
[0040] 3 and 4 show examples of the rope set 1 of the first embodiment, in which the rope 10 uses a resin rope body 12 with a diameter D of 2 mmφ, and a plurality of pairs of projections 15 are fixed to the rope body 12 at intervals L of 50 mm by injection molding using a resin material. The projections 15a, 15b are 5 mm long and have a diameter D1 of 5 mm. The rope fastener 30 is molded by injection molding using a resin material, and the body 32 has a diameter of 20 mmφ and a thickness of 9 mm.
[0041] Figure 4 shows an example of how to use the rope set 1 of the first embodiment. As shown in Figure 4(A), a loop 100 can be easily made. Also, as shown in Figure 4(B), two ropes 10A, 10B can be connected via a rope fastener 30 to form a single rope. Also, as shown in Figure 4(C), by using two rope fasteners 30, the rope 10 can be easily hung between two members 200, 201, and the tension of the rope 10 can be easily adjusted.
[0042] As described above, the rope set 1 of the first embodiment allows the rope 10 to be easily fixed to the rope fastener 30 and easily removed from the rope fastener 30. Furthermore, since the protrusions 15 are fixed to the rope body 12 at regular intervals, the rope 10 maintains its functionality even when cut to a desired length. Furthermore, the rope fastener 30 can be used to connect two ropes 10, allowing for a variety of uses and making it easy to use.
[0043] Fig. 6 is a diagram for explaining the structure of the rope fastener 31 of the rope set 2 of the second embodiment of the present invention, (A) being a perspective view of the rope fastener 31, (B) being a plan view showing the state in which the rope 10 is attached to the rope fastener 31, (C) being a perspective view showing the state in which the rope 10 is attached to the rope fastener 31, and (D) being a cross-sectional view showing the state in which the rope 10 is attached to the rope fastener 31. Fig. 7 is a diagram for explaining an example of use of an example of the rope set 2 of the second embodiment of the present invention.
[0044] The basic configuration of the rope set 2 of the second embodiment is the same as that of the rope set 1 of the first embodiment, and includes a rope 10 having protrusions 15 fixed at regular intervals in the longitudinal direction (Y direction) of the rope body 12, and a rope fastener 31 having an engagement groove 40 into which the protrusions 15 fit and which engages the fitted protrusions 15.
[0045] In the rope set 2 of the second embodiment, the rope 10 is the same as the rope 10 of the first embodiment, so the description will be omitted and the description will focus on the rope fastener 31. The same components as those in the rope set 1 of the first embodiment are given the same reference numerals and detailed description will be omitted.
[0046] The rope fastener 31 has four locking grooves 40C, 40D, 40E, and 40F provided in a substantially spherical body 36. In addition, slit-like open grooves 50C, 50D, 50E, and 50F are provided in communication with the four locking grooves 40C, 40D, 40E, and 40F.
[0047] The four locking grooves 40C, 40D, 40E, and 40F have the same structure as the locking grooves 40A and 40B provided in the rope fastener 30 of the first embodiment. In each of the locking grooves 40C, 40D, 40E, and 40F, the same components as those in the locking groove 40A are designated by the same reference symbols (numbers), and only the suffixes are changed.
[0048] The four locking grooves 40C, 40D, 40E, and 40F are provided at 90° pitches in the circumferential direction in a plan view such that the central axes of the locking grooves 40C, 40D, 40E, and 40F are parallel to each other.
[0049] In the locking grooves 40C and 40E arranged to face each other, locking portions 44C and 44E are both arranged on the upper side in Fig. 6(A), and insertion openings 42C and 42E for the protrusion 15 are both provided on the lower side. On the other hand, in the locking grooves 40D and 40F arranged to face each other, insertion openings 42D and 42F for the protrusion 15 are both arranged on the upper side in Fig. 6(A), and locking portions 44D and 44F are provided on the lower side.
[0050] The four opening grooves 50C, 50D, 50E, and 50F are also provided at 90° intervals in the circumferential direction in a plan view. The manner in which the opening grooves 50C, 50D, 50E, and 50F are provided and the manner in which they communicate with the locking grooves 40C, 40D, 40E, and 40F are the same as the opening grooves 50A and 50B of the first embodiment.
[0051] 6, the rope 10 is fixed by fitting the protrusions 15 into the locking grooves 40D and 40E, but the rope 10 can be fixed by fitting the protrusions 15 into three or all of the locking grooves 40. In the second embodiment, the rope 10 to which the protrusions 15 are fixed is fixed to the rope fastener 31, but similar to the rope fastener 30 of the first embodiment, the rope 10 to which the protrusions 17, 19, 21, and 23 are fixed as shown in FIG.
[0052] 3 and 7 show examples of the rope set 2 of the second embodiment, in which the rope 10 uses a resin rope body 12 with a diameter D of 2 mmφ, and a plurality of pairs of projections 15 are fixed to the rope body 12 at intervals L of 50 mm by injection molding using a resin material. The projections 15a, 15b are 5 mm long and have a diameter D1 of 5 mm. The rope fastener 31 is molded by injection molding using a resin material, and the diameter of the body 36 is 20 mmφ.
[0053] FIG. 7 shows an example of how to use the rope set 2 of the second embodiment. As shown in FIG. 7(A), a loop 100 can be easily made. FIG. 7(B) shows the state before making another loop 100 at the opposite position in the rope set 2 in which one loop 100 has been made, and FIG. 7(C) shows the state in which the protrusions 15 are engaged with the vacant locking grooves 40 from the state of FIG. 7(B) to make two loops 100. In the rope set 2 of the second embodiment, similarly to the rope set 1 of the first embodiment, a large number of protrusions 15 are fixed to the rope 10, so that the size of the loop 100 can be easily adjusted by changing the protrusions 15 engaged with the locking grooves 40.
[0054] The action and effect of the rope set 2 of the second embodiment of the present invention is basically the same as that of the rope set 1 of the first embodiment of the present invention, but the rope fastener 31 of the rope set 2 of the second embodiment is provided with four locking grooves 40, allowing for a greater variety of uses than the rope set 1 of the first embodiment.
[0055] The rope set and rope of the present invention have been described above using the first and second embodiments, as well as examples. However, the rope set and rope of the present invention are not limited to the above embodiments, and can be modified and used within the scope that does not change the gist of the invention.
[0056] For example, the rope fastener of the first embodiment has two locking grooves for locking the protrusion, and the rope fastener of the second embodiment has four locking grooves for locking the protrusion, but the rope fastener may have three or five or more locking grooves.
[0057] In addition, in the above embodiment, one protrusion or a set of two protrusions is fixed to the rope body at a regular interval, but a set of three or four protrusions may also be fixed at a regular interval.
[0058] In addition, in the above embodiments, examples have been shown in which one or two rope fasteners are used for one rope, and one rope fastener is used for two ropes, but the rope of the present invention can also use three or more rope fasteners for one rope.
[0059] Although the preferred rope set and rope have been described above with reference to the drawings, a person skilled in the art will easily imagine various changes and modifications within the obvious scope upon reading this specification. Therefore, such changes and modifications are interpreted as falling within the scope of the invention as defined by the claims. [Explanation of symbols]
[0060] 1,2 Rope set 10. Rope 12 Rope body 15,15a,15b protrusion 17,19,21,23 Projections 30,31 Rope fastener 32,36 Main unit 40,40A,40B,40C,40D,40E,40F Locking groove 42A, 42B, 42C, 42D, 42E, 42F One end of the locking groove, insertion opening 44A, 44B, 44D, 44F Other end of the locking groove, locking part 50A,50B,50C,50D,50E,50F opening groove 52A, 52B, 52D End of open groove D Rope body outer diameter D0 protrusion outer diameter L Protrusion spacing Δt Gap between protrusions
Claims
1. A rope having projections fixed at regular intervals along the length of the rope body; A rope fastener having two or more locking grooves into which the protrusion fits and into which the fitted protrusion is locked; A rope set comprising:
2. The rope fastener has a slit-shaped opening groove leading to the outside through which the rope body can be inserted, The locking groove communicates with the opening groove, 2. The rope set according to claim 1, wherein the rope body can be fitted into the locking groove from the open groove.
3. 3. The rope set according to claim 1 or 2, characterized in that the protrusions are grouped into pairs, and a plurality of pairs of protrusions are fixed to the rope body at regular intervals in the longitudinal direction.
4. The locking groove has an insertion opening for the protrusion at a tip end and a locking portion for locking the protrusion at a distal end, The rope set according to claim 1 or 2, characterized in that when one of the two locking grooves is the first locking groove and the other is the second locking groove, the position of the insertion opening relative to the rope fastener is reversed between the first locking groove and the second locking groove.
5. A rope usable as the rope of the rope set according to claim 1, in which protrusions are fixed at regular intervals in the longitudinal direction of the rope body, The rope is long and can be cut at any position. The rope is characterized in that the cut rope can be connected via the rope fastener.
Citation Information
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