JP3600967B2 - Practice hurdle - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to, for example, a physical training class of hurdle competition in elementary school and a training hurdle suitable for practicing beginners of hurdle competitors, particularly as a hurdle bar swings forward when a foot hits during hurling. It relates to the improvement of what is configured.
[0002]
[Prior art]
In athletics, there are obstacle runs such as hurdle races in addition to 100-meter races and marathons. The hurdle competition is a competition in which a plurality of hurdles are set up at a certain interval on a runway, and a competitor straddles the hurdles while running sequentially, competing for a time at that time. In this kind of hurdle competition, the hurdle technology that straddles the hurdle is considered to be extremely important.
[0003]
By the way, the competition hurdle has the following configuration. First, the left and right L-shaped pipes are connected by a horizontal pipe, the support pipes are slidably mounted on the upper ends of the two L-shaped pipes, and the stoppers are inserted into the locking holes of both, thereby forming the hurdle main body. A wooden hurdle bar is attached between the upper ends of the left and right support pipes.
[0004]
In elementary schools, hurdle competition physical education classes are conducted for higher-grade children as school education. However, since the hurdles for competition described above are used, when a child takes a hurdle competition class for the first time, it is easy to get their feet caught on the hurdle bar, which, of course, causes pain. It was feared that children would fall and get injured with the hurdle. Also, such a thing has given children a fear.
[0005]
Therefore, in the competition hurdle described above, the bent portions of the left and right L-shaped pipes are rounded so that they can easily fall forward, and in the case where a child catches a foot on the hurdle bar, only the hurdle is used. Have been proposed so that they can fall forward.
However, this was not enough, and it was not safe for children with undeveloped leg and hip muscles to fall easily with the fall of the hurdle.
[0006]
Therefore, the following training hurdles have been proposed. The configuration will be described with reference to FIG. FIG. 6 is an overall perspective view showing the configuration of the training hurdle. First, there are left and right L-shaped pipes 101, 101. FIG. The bent portions 101a, 101a of the L-shaped pipes 101, 101 are connected by a horizontal pipe 103. Support pipes 105 are inserted in the L-shaped pipes 101 so as to be slidable in the vertical direction. In addition, a not-shown locking hole is formed in the upper end of the L-shaped pipes 101, 101, and a not-shown locking hole is also formed in the support pipes 105, 105. Then, by inserting the stopper 107, the support pipes 105, 105 are fixed at a predetermined height position.
[0007]
Wooden mounting bases 109, 109 are fixed to the upper ends of the support pipes 105, 105, and the outer end surfaces of the bar members 111, 111 are hinged to the inner end surfaces of the mounting bases 109, 109. Mounted through. In other words, the bar members 111 are attached to be able to swing forward in the horizontal direction via the hinges 113, 113, respectively. A coil spring (not shown) is attached to the hinge 113, and constantly urges the bar members 111, 111 rearward (in the direction opposite to the arrow in FIG. 6).
[0008]
In the above configuration, for example, when a child hooks his or her feet on the bar members 111 during the competition, the bar members 111, 111 swing forward through the hinges 113, 113 against the urging force of the coil spring. Will move. That is, the bar members 111, 111 are opened in a double-headed manner toward the front. Therefore, the hurdle does not fall down, and the child can run through without feeling great resistance. After the child runs through, the bar members 111 return to the original state as shown in FIG. 6 by the return force of the coil spring.
[0009]
[Problems to be solved by the invention]
According to the above-described conventional configuration, there are the following problems. That is, since the bar members 111, 111 are configured to be able to swing forward through the hinges 113, 113, the safety when the foot is caught on the bar members 111, 111 is improved, but it is still insufficient. Met.
For example, when the child's foot hits the bar members 111, it is rare that the foot hits only forward, and strictly speaking, it hits from obliquely downward to obliquely upward. However, in the above-described training hurdle, the bar members 111, 111 only swing forward in the horizontal direction, and do not coincide with the direction in which the feet are caught. Therefore, the bar members 111, 111 are conveniently provided. It does not swing. In addition, there is a certain degree of impact when the foot collides with the bar member 111, and it cannot be said that it is still safe for a child whose leg and hip muscles are not developed.
[0010]
The present invention has been made based on such a point, and an object thereof is, for example, to secure sufficient safety even when a child uses the bar when the child hooks the bar member. It is to provide a training hurdle that can be practiced.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, a separable hurdle according to the present invention comprises a hurdle main body having left and right support pipes slidable in a vertical direction, and a three-dimensional hurdle through a bendable wire at the upper ends of the left and right support pipes. And left and right bar members rotatably mounted in the directions.
At this time, it is conceivable to attach the left and right bar members while applying an arbitrary tension to the wire.
Further, it is conceivable that a coil spring is provided in a connecting portion of the bar member with the wire and the compression state of the coil spring is appropriately adjusted so as to adjust the tension acting on the wire and eventually the return force of the bar member.
It is also conceivable that the bar member is provided with a protect bar on its outer periphery.
[0012]
[Action]
That is, in the training hurdle according to the present invention, the bar member is attached to the hurdle main body via the bendable wire in a state capable of rotating in all three-dimensional directions. Therefore, even if the foot collides with the bar member from any direction during use, the bar member rotates conveniently and the safety is greatly improved.
At this time, it is conceivable that the wire is attached with an appropriate tension applied thereto, and the tension affects the return force of the bar member.
In addition, it is conceivable that the above-mentioned tension is generated by the compression force of the coil spring, and in this case, the tension and thus the return force are adjusted by adjusting the compression force.
[0013]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. First, the overall configuration will be described with reference to FIGS. First, there are left and right L-shaped pipes 1 and 1, and these L-shaped pipes 1 and 1 have a grounding portion 1 a grounded to the ground and a standing portion 1 c erected therefrom via a bent portion 1 b. It is composed of The bent portions 1b, 1b of the L-shaped pipes 1, 1 are connected via a horizontal pipe 3.
[0014]
Support pipes 5, 5 are attached to the upright portions 1c, 1c of the L-shaped pipes 1, 1 so as to be vertically slidable. Lock holes (not shown) are drilled in the support pipes 5 and 5 at a predetermined pitch in the vertical direction, and lock holes 1d are drilled in predetermined positions on the upright portions 1c and 1c, respectively. ing. Then, the support pipes 5, 5 are covered with the upright portions 1c, 1c, set at a predetermined level, and in this state, the stoppers 7 are inserted into the locking holes of both, so that the support pipes 5, 5 are attached. Attach and fix to the desired level.
Note that FIG. 5 shows a state in which the levels of the left and right support pipes 5, 5 are different, and the practice hurdle of the present invention can be used in such a state. However, as shown in FIG. 1, the levels of the left and right support pipes 5, 5 can be adjusted to be the same and used.
[0015]
Left and right bar members 11, 11 are attached to the upper ends of the support pipes 5, 5 via attachment bases 9, 9 so as to be rotatable in all three-dimensional directions. The mounting base 9 has a configuration as shown in FIG. First, there is a joint pipe 13, which is fixed to the upper end of the support pipe 5. A joint bush 15 is movably attached to the right side of the joint pipe 13 in FIG. An adjust ring 17 is attached to the left side in FIG.
[0016]
In the joint pipe 13, a wire tensioner 19 is inserted and arranged concentrically, and the wire tensioner 19 is formed with a male screw portion 19a. The left end of the wire tensioner 19 is projected and arranged through the adjust ring 17, and the knob member 21 is attached thereto. A lock nut 23 is interposed between the knob 21 and the adjust ring 17.
[0017]
On the other hand, the bar member 11 described above is crowned and fixed to the outer periphery of the joint bush 15. The bar member 11 includes an aluminum pipe 24 and a buffer protector bar 25 mounted on the outer periphery of the pipe 24. The strength of the bar member 11 is maintained by the pipe 24, and the protection bar 25 prevents the user from being injured. A wire stopper 27 is mounted on a predetermined portion of the hollow portion 11 a of the bar member 11, and a coil spring 29 is provided between the wire stopper 27 and the joint bush 15. A wire 31 is attached to the right end 19b in FIG. 3 of the wire tensioner 19 described above, and the wire 31 is extended to a position penetrating the wire stopper 27.
[0018]
Next, adjustment of each unit will be described. First, as described above, the bar member 11 is configured to be rotatable in all three-dimensional directions by bending the wire 31 in all three-dimensional directions. When the adjuster ring 17 is rotated in an appropriate direction in a state where the grip member 21 is gripped, the wire tensioner 19 moves in either the left or right direction. As a result, the wire 31 moves in the same direction with the wire stopper 27, whereby the accumulated pressure of the coil spring 29 is adjusted. That is, when the adjuster ring 17 is rotated in one direction and the wire tensioner 19 is moved to the left side in FIG. 3, the wire 31 moves to the left side in the figure together with the wire stopper 27, whereby the coil spring 29 is further compressed. The accumulated pressure increases (FIG. 3A). Conversely, when the adjuster 17 is rotated in the other direction to move the wire tensioner 19 to the right in FIG. 3, the wire 31 moves to the right in FIG. 3 together with the wire stopper 27, whereby the compression of the coil spring 29 is reduced. The pressure is reduced and the accumulated pressure is reduced (FIG. 3B). When the coil spring 29 is further compressed to increase the accumulated pressure, the returning force of the turned bar member 11 is increased. Conversely, when the compression of the coil spring 29 is relaxed and the accumulated pressure is reduced, the bar member 11 is rotated. The return force of the bar member 11 becomes weak.
[0019]
The operation will be described based on the above configuration. When the device is used in a state where the above-described adjustment is completed, it is normally in a state shown by a two-dot chain line in FIG. On the other hand, when the foot of a user, for example, a child is caught on the bar member 11, the bar member 11 is bent obliquely upward as shown by a solid line in FIG. Rotate upward. Therefore, the child can run through as it is. Further, the bar member 11 rotated obliquely upward returns to the original state shown by the two-dot chain line in FIG. 4 by the spring force of the coil spring 29 and the return force of the wire 31.
Since the bar member 11 is rotatable in all three-dimensional directions via the wire 31, the bar member 11 can be easily rotated in that direction regardless of the collision direction of the foot against the bar member. become. In other words, as compared with the conventional case in which the swing can be made to swing forward in the horizontal direction simply through the hinge, the swinging can be performed without any difficulty. The rotation of the bar member 11 is also performed smoothly.
[0020]
According to the present embodiment, the following effects can be obtained. In other words, in contrast to the conventional configuration in which the bar member is merely swingably attached to the front via the hinge, the bar members 11 of this embodiment are three-dimensionally bent by bending the wires 31. Since it is configured to be rotatable in all directions, the rotating operation is smoother, and thus the safety when the child's foot is caught during training is further improved.
Further, by appropriately adjusting the accumulated pressure of the coil spring 29, the return force of the bar members 11, 11 can be adjusted, so that the usability is good.
Further, since the bar member 11 has the protect bar 25 on the outside, it is possible to reduce the impact when the child's foot collides.
[0021]
Note that the present invention is not limited to the one embodiment. For example, the configuration for adjusting the tension of the wire is not limited to the illustrated one, and various known configurations may be used.
[0022]
【The invention's effect】
As described in detail above, according to the training hurdle according to the present invention, the bar member is configured to be rotatable in all three-dimensional directions by bending of the wire, so that the rotating operation becomes smoother, Therefore, safety when the user's foot is caught is further improved.
Further, when the tension of the wire can be adjusted by appropriately adjusting the accumulated pressure of the coil spring, the return force of the bar member can be adjusted.
In addition, when the protect bar is provided outside the bar member, the impact when the user's foot collides can be reduced.
[Brief description of the drawings]
FIG. 1 is a view showing an embodiment of the present invention, and is a front view showing a configuration of a training hurdle.
FIG. 2 is a view showing one embodiment of the present invention, and is a side view showing a configuration of a training hurdle.
FIG. 3 is a view showing one embodiment of the present invention, and is an enlarged sectional view showing a part III in FIG. 1;
FIG. 4 is a view showing one embodiment of the present invention, and is a cross-sectional view showing a state when a bar member rotates.
FIG. 5 is a view showing one embodiment of the present invention, and is a front view showing another example of use.
FIG. 6 is a view showing a conventional example, and is a perspective view showing a configuration of a training hurdle.
[Explanation of symbols]
Reference Signs List 1 L-shaped hype 3 Horizontal pipe 5 Support pipe 9 Mounting base 11 Bar member 29 Coil spring 31 Wire

Claims (4)

A hurdle body provided with left and right support pipes slidable in a vertical direction, and left and right bar members attached to the upper ends of the left and right support pipes so as to be rotatable in all three-dimensional directions through bendable wires; A training hurdle comprising: 2. The training hurdle according to claim 1, wherein the right and left bar members are attached with an arbitrary tension applied to the wire. 3. The training hurdle according to claim 2, wherein a coil spring is provided in a connection portion of the bar member with the wire, and a compression state of the coil spring is appropriately adjusted to reduce a tension acting on the wire and a return force of the bar member. A training hurdle characterized by adjustment. The training hurdle according to any one of claims 1 to 3, wherein the bar member is provided with a protect bar on an outer periphery thereof.

Images