JP3149031U - Rope skipping exercise tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To practice a double dutch particularly equipped with a rope member that draws a beautiful arc shape even if a beginner turns and yet can keep the arc shape even if it is turned slowly, in order to practice the timing of entering the turned rope A suitable skipping rope training tool is provided. SOLUTION: A rope member 1 has grip portions 2 at both ends, and the rope member 1 lifts the rope member 1 by gripping the grip portion 2 with two turners facing each other at a distance shorter than the length of the rope member. Even if the turner is a beginner, the rope member 1 can be turned while keeping the arc shape by holding the grip portion 2 by forming it with a synthetic resin having bending rigidity that can be bent in an arc shape and maintain its shape. I was able to do it. [Selection] Figure 1

Description

  The present invention relates to a jumping rope training tool, and more particularly to a training tool suitable for jumping rope jumping using two ropes called Double Dutch (registered trademark).

  Double Dutch is a sport that originated in the United States where two turning hands called turners facing each other turned two ropes inward, and jumpers jumped while doing techniques, and in recent years coupled with the hip-hop boom of young people (See FIG. 1).

  However, the skill is necessary for the competition, and it is not a competition that anyone can do like ordinary jump rope or long rope. The reason is that the turner cannot turn the rope properly. For example, when turning slowly, if the turner A is turned poorly, the rope B turned upward will not have a beautiful arc shape as shown by the broken line in FIG. 12, and the middle part will hang down. There is.

  Also, it is difficult for a beginner jumper (jumper) to find out when the two ropes are turning.

  On the other hand, rope jumping is mainly performed for infants and children with one long rope, but the same problem occurs.

  So, even if a beginner turns this device, the middle part does not hang down, draws an arc shape, and in order to practice the timing of entering the turned rope, slowly or even in a state where the rotation is stopped An object of the present invention is to provide a rope skipping exercise tool including a rope member that can maintain an arc shape without the middle portion hanging down.

  In order to solve the above-mentioned problem, this device has grip portions at both ends of the rope member, and the rope members grip the grip portion with two turners facing each other at a distance shorter than the length of the rope member. A rope jumping practice tool having a configuration formed of a synthetic resin having bending rigidity that can be bent and held in an arc shape in a state where the member is lifted is provided.

  When the rope skipping exercise tool with the above configuration is lifted, the middle part does not hang down due to its rigidity and it bends in an arc shape, so even if you are a beginner, turn the rope member neatly with a grip. Can do.

  In the present invention, the arc shape means not only a circular arc having a constant curvature but also a composite of circular arcs having different curvatures, and a concept including a linear or broken line portion in the middle.

  Moreover, since the rope member is formed of a synthetic resin having a bending rigidity capable of maintaining an arc shape, the arc shape does not collapse even if the rope member is slowly turned, and the rope member is stopped while turning upward. But its shape is maintained. Therefore, it is possible to practice grasping the timing of entering while visually confirming the timing of entering the jumper, and to wipe away the anxiety about the beginner entering the rotating rope member.

  Further, since the rope member is made of synthetic resin, it can be turned while feeling a certain amount of weight when turning, so that a beginner can easily grasp the knack of turning while feeling centrifugal force.

  Next, the length of the rope member required for jumping rope, particularly double dutch, is at least 3 m. Therefore, when the rope member is composed of a single member, a long storage space is required. However, since the rope member is formed of a synthetic resin that bends in an arc shape, the rope member is wound in a tuna shape and stored compactly. It is also possible. However, when stored in the shape of a toggle, the rope member wound by the elasticity of the material of the rope member itself will be released vigorously when used, so that the rope member will hit the surrounding people with that momentum and cause injury. There are concerns.

  For this reason, it is preferable that the rope member is composed of a synthetic resin divided tube divided into a plurality of pieces in the length direction and a connecting means for connecting these divided tubes so that the storage is convenient.

  As the connecting means for the divided tubes, an elastic synthetic resin that is continuously inserted into each divided tube, pulls both ends to the outer end of the grip portion and is fixed to the grip portion, and connects the divided tubes into one. Consisting of a manufactured core wire and a joint pipe having a bending rigidity higher than the bending rigidity of the divided tube covering the connecting portion of the divided tubes, and one of the adjacent divided tubes that are abutted in the joint pipe is joined to the joint pipe, A configuration in which the other is slidably inserted into the joint pipe can be employed.

  In this configuration, when the core wire drawn to the outer end portion of the grip portion is pulled, a plurality of synthetic resin divided tubes are abutted in the joint pipe and connected to one continuous rope member. When this connected rope member is turned, the elastic core wire is extended by centrifugal force, but this extension is caused by the split tube that is not joined to the joint tube among the adjacent split tubes that collide in the joint tube. It is absorbed by sliding against the joint tube. Therefore, even if the rope member is composed of a plurality of divided tubes, it can be rotated while maintaining an arcuate shape in which the intermediate portion does not hang down as a whole in a single continuous state. Further, the bending rigidity of the joint pipe is higher than the bending rigidity of the divided tube. If the bending stiffness of the joint tube is lower than the bending stiffness of the split tube, the joint tube is likely to be bent at the butted portion of the split tube. As described above, when the bending rigidity of the joint tube is higher than the bending rigidity of the divided tube, the joint tube is not bent at the abutting portion of the divided tube, so that a beautiful arc shape can be maintained.

  Further, in order to facilitate the fixation between the core wire and the grip portion, the grip portion may be formed of a hollow body, and a grip fixing tool may be attached to the end portion of the grip portion. The grip fixture includes a split tube storage portion that stores an end portion of a split tube that is inserted into the grip portion, and a core wire fixture housing that stores a core wire fixture that fixes a core wire drawn out to the outer end portion of the grip portion. Part. The core wire fixture includes a cylindrical rotor accommodated in the core wire fixture accommodating portion and a chuck member that is accommodated in the rotor and has a chuck claw that grips the core wire from the periphery. The chuck member pulls the core wire toward the tip of the grip part, so that the chuck claw of the chuck member housed in the rotor bites into the core wire. Conversely, when the core wire is pulled toward the end side of the grip part, the chuck claw The bite into the core wire is released. Therefore, by pulling the core wire toward the end side of the grip portion, the length of the core wire between the grip portions is shortened, and the single tube can be brought into a state in which the divided tubes face each other in the joint pipe. Also, by moving the chuck member to the end side of the core wire, the length of the core wire between both grip portions can be increased, so by pulling out one of the divided tubes that face each other in the joint tube, The split tube can be folded.

  When the rope member assembled with the grip part is rotated, a large torque is generated in the grip part due to its centrifugal force and its own weight, but as described above, in this device, the grip fixing tool is inserted into the grip part. Since the split tube storage part for storing the end of the split tube is provided, the rotation between the grip part and the split tube is free in the split tube storage part, and the restraint of the rope member due to the rotational torque is eased. The destruction of the rope member can be effectively prevented.

  The divided tube made of synthetic resin divided into a plurality of pieces is a combination of a large-diameter divided tube and a small-diameter divided tube, and the small-diameter divided tube is accommodated in the large-diameter divided tube. You may employ | adopt what the division | segmentation tube connected with respect to the large diameter division | segmentation tube so that extraction | drawer was possible.

  Furthermore, it is preferable that the division number of the division tube is an odd number. If the number of the divided tubes is an odd number, one divided tube is located in the middle between the grip portions. Therefore, when the rope member is turned, the butted portion of the divided tube and the joint tube do not hit the ground. For this reason, damage to the rope member can be reduced.

  The rope skipping exercise device according to the present invention is formed of a synthetic resin having bending rigidity that can maintain the arc shape of the rope member, so that the arc shape does not collapse even if the rope member is slowly turned. Moreover, even if the rope member is stopped in the middle of turning upward, the intermediate portion does not droop greatly. Therefore, it is suitable for the practice of double Dutch. That is, while visually confirming the timing of entering the jumper, it is possible to practice grasping the timing of entering, and to wipe away the anxiety about entering the rope member. Moreover, even if the turner is a beginner, it is possible to practice turning the rope member while holding the grip portion and maintaining an arc shape in which the intermediate portion does not hang down.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  Fig. 1 is an example of using the rope skipping exercise tool according to this device for practicing a double dutch. Two turning hands A called turners facing each other are turning two rope members 1 inward. Show.

  A rope skipping exercise device according to this device has grip portions 2 at both ends of a rope member 1.

  As shown in FIG. 1, the rope member 1 has two turners A facing each other at a distance shorter than the entire length of the rope member 1 and gripping the grip portion 2, and is bent into an arc shape while the rope member 1 is lifted. Is formed of a synthetic resin having a bending rigidity capable of holding

  The bending rigidity of the rope member 1 needs to satisfy the following conditions, for example, in order to bend in an arc shape in the lifted state and maintain the shape.

  As shown in the schematic diagram of FIG. 2, assuming that the total length of the rope member 1 is 3600 mm and two turners A hold the rope member 1 at a distance of 2800 mm, the conditions for the bending of the rope member 1 are as follows. Were determined.

  First, in order to maintain the arc shape even when the rope member 1 is turned and stopped halfway, both ends of the rope member 1 having a total length of 3600 mm are attached to the ground, and the distance between both ends is 2800 mm. In such a state, it is necessary to have an arc-shaped bending rigidity as shown in FIG.

  Next, as shown in FIG. 3, when the grip part 2 is tilted to 30 degrees or 45 degrees from the state in which the rope member 1 is in the vertical plane when viewed from the front of the turner A, the top of the mountain hangs down by its own weight. . If this sag is too large, the rope member 1 cannot be practiced by stopping it halfway. Therefore, with the grip portion 2 tilted at an angle of 30 degrees, the top of the mountain is about 380 mm from the ground, and when the grip portion 2 is tilted at an angle of 45 degrees, the bending is such that the height of about 180 mm is maintained. It is desirable to have rigidity.

  Although the rope member 1 may be formed by a single synthetic resin pole, the rope member 1 is made of a synthetic resin that is divided into a plurality of pieces in the length direction in consideration of the storage property of the rope member 1. The divided tube 3 and a connecting means for connecting the divided tubes 3 are preferably used.

  The embodiment shown in FIGS. 4 to 9 divides the rope member 1 into three parts and uses the following connecting means.

  That is, the connecting means is inserted into the divided tube 3 continuously, both ends are pulled out to the outer end of the grip portion 2 and fixed to the grip portion 2, and the elastic synthetic resin that connects the divided tubes 2 together. It consists of a core wire 4 made of metal and a joint pipe 5 having a bending rigidity higher than the bending rigidity of each divided tube 2 that covers the connecting portion of each divided tube 2.

  As shown in FIGS. 6A and 6B, one of the adjacent divided tubes 3 that face each other in the joint pipe 5 is joined to the joint pipe 5 and the other is slidably inserted into the joint pipe 5. Yes. 6 (a) and 6 (b), reference numeral 6 indicates a joint portion between the divided tube 3 and the joint pipe 5.

  The divided tube 3 divided into a plurality is a single continuous rope member by pulling the core wire 4 drawn to the outer end of the grip portion 2 in a state where the adjacent divided tubes 3 are abutted in the joint pipe 5. 1 connected. When the rope member 1 in the connected state is turned, as shown in FIG. 6B, the elastic core wire is extended by centrifugal force, and this extension is caused in the adjacent divided tubes 3 that face each other in the joint pipe 5. Even if the split tube 3 that is not joined to the joint pipe 5 is slid and absorbed with respect to the joint pipe 5, even if the rope member 1 is composed of a plurality of split tubes 3, the whole is in an arc shape. .

  Further, the bending rigidity of the joint tube 5 is higher than the bending rigidity of the divided tube 3. If the bending stiffness of the joint tube 5 is lower than the bending stiffness of the divided tube 3, the joint tube 5 is bent at the abutting portion of the divided tube 3, and the arc shape as a whole becomes distorted. As described above, by making the bending rigidity of the joint tube 5 higher than the bending rigidity of the divided tube 3, it is possible to prevent the bending of the joint pipe 5 at the butt portion of the divided tube 3.

  Each material of the divided tube 3, the joint tube 5, the core wire 4, and the grip portion 2 is not particularly limited. For example, the divided tube 3 and the joint tube 5 are polycarbonate, the core wire 4 is polyurethane, and the grip portion 2 is polyethylene. Can be formed.

  Next, in order to make it easy to fix the core wire 4 and the grip portion 2 and to relieve the torque generated in the grip portion 2 when the rope member 1 is rotated, the end portion of the grip portion 2 made of a hollow body is used. A grip fixture 7 is attached.

  As shown in FIGS. 7 and 8, the grip fixture 7 is pulled out to the split tube storage portion 8 in which the end portion of the split tube 3 inserted into the grip portion 2 is stored, and to the outer end portion of the grip portion 2. And a core wire fixture housing portion 10 for housing a core wire fixture 9 for fixing the core wire 4 to be secured. The core wire fixture 9 includes a cylindrical rotor 11 housed in the core wire fixture housing portion 10 and a chuck member 12 housed in the rotor 11 and having a chuck claw 13 that grips the core wire 4 from the periphery. .

  The chuck member 12 pulls the core wire 4 toward the front end side of the grip portion 2, whereby the chuck claw 13 of the chuck member 12 accommodated in the rotor 11 is engaged with the core wire 4. On the contrary, the core wire 4 is gripped by the grip portion 2. When pulled to the end side, the biting of the chuck claw 13 into the core wire 4 is released. As shown in the enlarged view of FIG. 9 as viewed from below, the chuck member 12 has three chuck claws 13 having a shape narrowed toward the rotor 11, and the core wire 4 is inserted through the center thereof. A hole 14 is formed. FIG. 9 shows a cross section of the core wire 4 inserted through the center.

  In order to make the divided tube 3 divided into one continuous rope member 1, the core wire 4 is pulled toward the end side of the grip portion 2, and the length of the core wire 4 between the grip portions 2 is shortened. As shown to 6 (a), the division | segmentation tube 3 abuts in the joint pipe | tube 5. As shown in FIG.

  Next, when the chuck member 12 is moved to the end portion side of the core wire 4 and the length of the core wire 4 between the grip portions 2 is increased, one of the divided tubes 3 that abut in the joint tube 3 is pulled out from the joint tube 5. Thus, as shown in FIG. 4, the divided tube 3 can be folded.

  Next, FIG.10 and FIG.11 has shown another embodiment of the rope skipping training tool based on this invention.

  In this embodiment, a divided tube 3 made of a synthetic resin divided into a plurality of tubes is formed by a combination of a large diameter divided tube and a small diameter divided tube, and the small diameter divided tube is accommodated in the large diameter tube. This is an example in which a small-diameter split tube is connected to a large-diameter split tube so that it can be pulled out. Flange prevention flanges 15 and 16 are provided at the ends of the small-diameter divided tube and the large-diameter divided tube, respectively.

  In the above embodiment, the division | segmentation number of the division | segmentation tube 3 is set to the odd number. That is, in the first embodiment, there are three dividing tubes 3, and in the second embodiment, there are five dividing tubes. In this way, when the number of the divided tubes 3 is an odd number, one divided tube is located in the middle between the grip portions 2, so that when the rope member 1 is turned, the butted portion of the divided tube 3 and the joint tube 5 are grounded. The rope member 1 is less damaged.

Schematic showing the state of using the rope skipping exercise device according to this device for practicing double Dutch Measurement diagram of bending stiffness of rope member in the same embodiment The same bending rigidity as seen from the front side of the turner Whole top view which shows the state which folded the rope member in embodiment same as the above Overall plan view of the above embodiment (A) (b) is the elements on larger scale of the embodiment same as the above The exploded enlarged view of the grip fixture in the same embodiment The enlarged view which shows the shape of the front end surface of the pillar part of the cage | basket in embodiment same as the above The enlarged view which looked at the chuck member in an embodiment same as the above from the lower surface direction Overall plan view of another embodiment Partial enlarged view of another embodiment Schematic showing the turner's twisted rope

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rope member 2 Grip part 3 Divided tube 4 Core wire 5 Joint pipe 6 Joining part 7 Grip fixture 8 Divided tube accommodating part 9 Core wire fixing tool 10 Core wire fixing element accommodating part 11 Rotor 12 Chuck member 13 Chuck claw 14 Insertion hole 15, 16 Flange A Turner

Claims (6)

  The rope member has grips at both ends, and the rope member is held by the two turners facing each other at a distance shorter than the length of the rope member, holding the grip part, and bending up and holding the shape of the rope member A rope skipping exercise tool characterized by being formed of a synthetic resin having bending rigidity.   2. The rope jumping practice tool according to claim 1, wherein the rope member includes a synthetic resin divided tube divided into a plurality of pieces in the length direction and a connecting means for connecting the divided tubes.   The connecting means is continuously inserted into each divided tube, both ends are pulled out to the outer end of the grip portion, fixed to the grip portion, and a flexible synthetic resin core wire that connects the divided tubes together. The joint tube having a bending rigidity higher than the bending rigidity of the divided tube that covers the connecting portion of the divided tubes, and one of the adjacent divided tubes that collide in the joint pipe is joined to the joint pipe, and the other is the joint pipe. The rope skipping exercise tool according to claim 2, which is slidably inserted into the rope.   The grip portion is formed of a hollow body, and an end portion of the grip portion includes a split tube storage portion in which an end portion of the split tube inserted into the grip portion is stored, and a core wire that is drawn out to an outer end portion of the grip portion. A grip fixing device having a core wire fixing device receiving portion for receiving a core wire fixing device for fixing the core wire fixing device is mounted, and the core wire fixing device is accommodated in the core wire fixing device receiving portion, The chuck member has a chuck claw that grips the core wire from the periphery. The chuck member is accommodated in the rotor by pulling the core wire toward the tip of the grip portion, and the chuck claw becomes the core wire. On the contrary, by pulling the core wire toward the end of the grip part, the chuck member comes out of the rotor and the chuck jaws are released from the core wire. Jump rope for practice device of claim 3, wherein the door.   The above-mentioned divided tube made of synthetic resin divided into a plurality of pieces is a combination of a large-diameter divided tube and a small-diameter divided tube, and the small-diameter divided tube is accommodated in the large-diameter divided tube. The rope skipping exercise tool according to claim 2, wherein the rope jumper is connected to a large-diameter divided tube so as to be drawn out.   The rope skipping exercise tool according to any one of claims 1 to 5, wherein the division number of the division tube is an odd number.

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