JP7049926B2 - Draining rope - Google Patents

Description

The present invention relates to a skipping rope, and more particularly to a grip for a skipping rope.

Conventionally, a skipping rope used for jumping rope performed by one person has one rope and grips attached to both ends of the rope. The user of the skipping rope grips the grip and rotates the rope back and forth while jumping up and down without touching the rope.

However, the rope of a skipping rope is often made of a long and soft material, and it was very difficult for a beginner of skipping rope to rotate the rope while controlling the length and softness of the rope. Therefore, there is an invention that makes it easier to rotate the skipping rope than before. For example, Patent Document 1 discloses a rope provided with a grip, a rope, and a connecting portion connecting them, for the purpose of facilitating the rotating rope in an arch shape.

Japanese Unexamined Patent Publication No. 2012-170805

However, in the above-mentioned Tobinawa of Patent Document 1, the axis of rotation of the rope is at two points, the contact point between the grip and the connecting portion and the contact point between the connecting portion and the rope, and a beginner of rope jumping such as an infant controls the jump rope. There was a problem that the structure was difficult to do.

The present invention has been made to solve the above problems, and to provide a skipping rope that is easy to control even for a beginner of skipping rope, specifically, a skipping rope that can be stably rotated even by a beginner of skipping rope. With the goal.

In order to solve the above problems, the skipping rope of the present invention is provided with a rope and a grip. The grips are connected to each end of the rope. The rope has a length of 350 cm or less, the grip has a length of 25 cm or more, and the cross section of the first end located on the side of the two ends of the grip that is not connected to the rope. Is formed in a substantially triangular shape, and the cross section of the second end located on the side connected to the rope is formed in a substantially circular shape. Further, the grip is formed in a tapered shape from the first end to the second end.

Since the length of the grip of this skipping rope is 25 cm or more, a beginner who jumps rope by himself can control the rope with a small swing of his arm. As a result, a beginner who carries out a skipping rope by himself can stably rotate the rope, and it becomes possible to make it easier to control the jump rope.

Further, in the skipping rope, the cross section of the first end portion of the two ends of the grip, which is located on the side not connected to the rope, is preferably formed in a substantially triangular shape. In this skipping rope, the cross section at a position up to 9 cm from the first end of the grip and the direction of the first end to the second end is formed in a substantially triangular shape, so that the user can properly adjust the grip. It can be guided to grip at a suitable position, making it easier to control the skipping rope.

Further, in the skipping rope, preferably, the cross section of the second end located on the side connected to the rope among the two ends of the grip is formed in a substantially circular shape. In this skipping rope, since the cross-sectional shape of the rope is substantially circular, the second end of the grip is formed in a substantially circular shape, so that friction between the rope and the grip occurs at the connection portion between the rope and the grip. It becomes difficult and the rope can be rotated more smoothly.

Further, in the skipping rope, the grip is preferably formed in a tapered shape from the first end portion to the second end portion of the grip. With this skipping rope, the position where the user grips the grip can be flexibly set.

Further, in the above-mentioned skipping rope, the sum of the lengths of the grips connected to both ends of the rope is preferably formed so as to be 15% or more of the total length of the jumping rope. With this skipping rope, it is possible to guarantee the length of the rope required for the user to jump the jumping rope.

As described above, the skipping rope of the present invention has made it possible to provide a skipping rope that is easy to control even for a beginner of skipping rope, specifically, that can stably rotate the rope.

It is a front view which showed the jumping rope by Embodiment 1 of this invention. It is a schematic diagram when the skipping rope of FIG. 1 is made into a straight line. It is a schematic diagram which showed the state which the rope jumping is performed using the skipping rope of FIG. It is a perspective view of the grip of the skipping rope according to Embodiment 2 of this invention. FIG. 6 is a cross-sectional view taken along the line AA of the grip of the skipping rope of FIG. It is BB sectional view of the grip of the skipping rope of FIG. It is a front view of the grip of the skipping rope according to Embodiment 3 of this invention.

(Embodiment 1)
The structure of the skipping rope 100 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3. The skipping rope 100 is an example of the jumping rope of the present invention.

As shown in FIGS. 1 to 3, the skipping rope 100 includes a rope 1 and grips 2 connected to both ends of the rope 1. The grip 2 includes a first end 21 to which the rope 1 and the grip 2 are not connected, and a second end 22 to which the rope 1 and the grip 2 are connected.

For the rope 1, materials such as polyvinyl chloride / styrene elastomer, thermoplastic polyurethane, cotton, and natural rubber are used. More preferably, polyvinyl chloride, a styrene-based elastomer, or a thermoplastic polyurethane is used for the rope 1. When polyvinyl chloride, a styrene-based elastomer, or thermoplastic polyurethane is used for the rope 1, the diameter of the rope 1 can be made small. Therefore, since the air resistance of the rope 1 can be suppressed during use, even a beginner of skipping rope can easily control the rope 1. Further, the length L1 of the rope 1 is 350 cm or less. A skipping rope for one person is commercially available with a rope 1 length L1 of 350 cm or less, and the length L1 of the rope 1 can be adjusted in consideration of the height and physical characteristics of the user.

The grip 2 is made of a material such as polyethylene resin, polypropylene resin, polyethylene terephthalate resin, polyvinyl chloride resin, polystyrene resin, acrylonitrile butadiene styrene, polyamide resin, polycarbonate resin, methacrylic resin, wood, and metals. More preferably, the grip 2 is made of polyethylene resin or polypropylene resin. If the grip 2 is made of polyethylene resin or polypropylene resin, the grip 2 can be made strong and lightweight, so that even a beginner of skipping rope can easily control the rope 1. Further, the length L2 of the grip 2 is preferably 25 cm or more. As described in FIG. 3, when the length L2 of the grip 2 is 25 cm or more, the height of the first end 21 of the grip 2 reaches the vicinity of the height of the crown of the user, so that the number of arms is small. You can control the rope 1 by swinging. Further, preferably, the length L2 of the grip 2 is 40 cm or less. If the length L2 of the grip is 40 cm or more, the hand holding the grip 2 and the rope 1 are too far apart, so that the rope 1 feels relatively heavy and it becomes difficult to control the rope 1.

When the total length Lt of the jump rope 100 and the length L2 of the grip 2 are compared, it is preferable that the sum of the two lengths L2 of the grip 2 is 15% or more of the total length Lt of the jump rope 100. If it is 15% or less, the length L1 of the rope 1 in the skipping rope 100 becomes relatively too long, and it becomes difficult to control the rope 1. Further, it is preferable that the sum of the two lengths L2 of the grip 2 is 35% or less of the total length Lt of the skipping rope 100. If it is 35% or more, the length L1 of the rope 1 in the skipping rope 100 becomes relatively too short, and it becomes difficult to control the rope 1.

The rope 1 and the grip 2 are connected in various ways. For example, a rotor may be provided near the second end 22 of the grip 2, or a fixing member such as a caulking may be provided. Further, the grip 2 may have a hollow structure in part or in whole from the second end 22 toward the first end 21. Originally, it is preferable that the length L1 of the rope 1 can be appropriately adjusted according to physical characteristics such as the height of the user and the length of the arm. If the grip 2 has a hollow structure, a part of the rope 1 can be stored in the hollow portion of the grip 2, and the length L1 of the rope 1 can be adjusted.

(Embodiment 2)
Next, the structure of the skipping rope 101 according to the second embodiment of the present invention will be described with reference to FIGS. 4 to 6. The skipping rope 101 according to the second embodiment is the jump rope 100 according to the first embodiment, in which the cross-sectional shape of the grip 2 is characterized. The same components as those of the skipping rope 100 according to the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIGS. 4 and 5, the first end 41 of the grip 4 has a substantially triangular end face. Further, the shape of the cross section at a position up to 9 cm from the end face of the first end 41 of the grip 4 toward the second end 42, which is assumed to be gripped by the user when performing the skipping rope 101, is omitted. Triangles are preferred. Since the average hand width of 5 to 7 years old, which is often a beginner of skipping rope, is about 7 cm, the cross section at the position from the end face of the first end 41 of the grip 4 to 9 cm in the direction of the second end 42. When the shape of is substantially triangular, it is possible to cover the width of the user's hand when the user grips the grip 4. Therefore, the user can be guided to grip the grip at an appropriate position, and the user can make the jump rope more controllable.

As shown in FIGS. 4 and 6, the second end 42 of the grip 4 has a substantially circular end face. Further, the shape of the cross section at a position from the end surface of the second end 42 of the grip 4 to 5 cm in the direction of the first end 41 is preferably substantially circular. When the shape of the cross section at the position from the end face of the second end portion 42 of the grip 4 to 5 cm in the direction of the first end portion 41 is substantially circular, the grip 4 is carried out by the user. Friction between the second end portion 42 and the rope 1 is less likely to occur, and the rope can be rotated more smoothly. The material and length of the grip 4 configured as described above may be the same as in the first embodiment described above.

(Embodiment 3)
Next, with reference to FIG. 7, the structure of the skipping rope 102 according to the third embodiment of the present invention will be described. The skipping rope 102 according to the third embodiment is the jump rope 101 according to the second embodiment, in which the outer shape of the grip 4 is characterized. The same components as those of the skipping rope 100 according to the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The grip 7 is preferably formed in a tapered shape from the first end 71 to the second end 72. More preferably, the taper treatment is performed after the position P of 3/10 from the end face of the first end portion 71 toward the second end portion 72. When the grip 7 is tapered, the grip position can be adjusted according to the progress of skipping rope. Specifically, for beginners of skipping rope, the skipping rope 102 can provide ease of control by gripping at a position close to the first end 71. Further, for the user who has improved the jump rope, by moving the gripping position closer to the second end 72, it is possible to provide an environment in which the jump rope 102 can also jump by increasing the rotation speed of the rope. ..

Further, a grip end portion 73 is provided at the first end portion 71 of the grip 7. Further, a plurality of protrusions 74 are provided after the position P of 3/10 from the first end 71 to the second end 72 of the grip 7. The grip end portion 23 and the protrusion 74 can serve as a non-slip when the user grips the grip.

(Effect verification experiment)
Next, the effect of using the jump rope according to the present invention will be verified with Examples and Comparative Examples.

The skipping rope according to the embodiment is a skipping rope provided with a rope and a grip as described in the first embodiment, and the grip is connected to each end of the rope, and the length of the rope is 180 cm. The length of each grip is 30 cm.

The skipping rope according to the comparative example is a skipping rope equipped with a rope and a grip, and the grip is connected to each end of the rope, the length of the rope is 180 cm, and the length of the grip is 14 cm each. It is configured.

In the experiment, a total of 7 subjects A to G, aged 5 to 7 years, who had 10 or less experiences of skipping rope, were jumped 5 times each in the jump rope according to the example and the jump rope according to the comparative example. It was carried out until the jump was successful. The previous jump refers to the movement of jumping up and down as the jump rope is lifted from behind to overhead and then passed through the front of the body and underfoot.

At the time of the experiment, an inertial sensor M-Tracer manufactured by Seiko Epson was installed on the wrist of the subject, and the angular velocity of the arm from the rear to the front (hereinafter referred to as "velocity") when performing a skipping rope was measured.

(単位:deg/sec)

(Unit: deg / sec)

Table 1 shows the measurement results. According to Table 1, it was found that the speed of all the subjects was lower when the skipping rope of the example was used than that of the jumping rope of the comparative example. From this result, the swing of the arm when the jump rope of the example is used is smaller than that of the jump rope of the comparative example when the hand is turned from the back to the front and the jump rope is brought from the back to the front. You can see that there is. Therefore, it was found that the swing of the arm is smaller when the skipping rope of the example is used, so that the arm can be rotated stably.

It should be noted that the embodiments disclosed this time are exemplary in all respects and are not considered to be restrictive. The scope of the present invention is shown by the scope of claims rather than the description of the embodiment described above, and further includes all modifications within the meaning and scope equivalent to the scope of claims.

1 rope 2 4 7 grip 100 101 102 skipping rope

Claims (4)

With a rope,
In a skipping rope with grips connected to both ends of the rope
The length of the rope is 350 cm or less,
The length of the grip is 25 cm or more, and the length is 25 cm or more.
Of the two ends of the grip
The cross section of the first end located on the side not connected to the rope is formed by a substantially triangular shape.
The cross section of the second end located on the side connected to the rope is formed in a substantially circular shape.
The grip is formed in a tapered shape from the first end to the second end.
Jumping rope. The skipping rope according to claim 1 , wherein the grip has a substantially triangular cross section at a position up to 9 cm from the first end toward the second end . The skipping rope according to claim 1 , wherein the grip has a substantially circular cross section at a position up to 5 cm from the second end toward the first end . Any one of claims 1 to 3 , wherein the grip is formed in a shape tapered from the position of 3/10 or later toward the direction of the second end from the first end. The jump rope described in .

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