JP3511165B2 - Jumping board - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jumping board on which a jumping jump, a jumping motion or the like is performed, which is particularly stable and safe, and has a user's weight, height, foot length,
The present invention relates to a jumping board that can be easily changed in support conditions depending on the strength of jumping force and can be implemented at a relatively low cost.

[0002]

2. Description of the Related Art For example, rope skipping is usually performed on the surface of concrete or asphalt or on the floor of a playground. The rope jumping is not only a single turn, but also a heavy action such as multiple turns, and when landing, it receives a considerably large impact force from the road surface or floor surface. Therefore, the knees, ankles, etc. may be damaged. Therefore, recently, it is often the case that a skipping platform is not used to directly perform a skipping on the road surface or floor surface.
FIG. 14 shows a very general rope skipping stand 15. This is composed of an upper plate 2a on which a user rides and supporting legs 4a for supporting both end edges thereof. In addition, there are many known techniques related to the rope skipping table, and for example, those having an excellent function as the rope skipping table include those disclosed in Japanese Utility Model Laid-Open No. 56-168167.

[0003]

In the prior art hobbiting base 15 shown in FIG. 14, the upper plate 2a functions as an elastic plate by appropriately setting the material of the upper plate 2a, and the user has a proper cushioning property. Add. Therefore, a light jump with less impact can be smoothly performed. However, this type requires a relatively expensive upper plate 2a, which increases the cost. Further, the contact state between the support leg 4a and the floor surface 8 changes to a one-side contact state as the upper plate 2a bends,
There is a problem that the support of the upper plate 2a becomes unstable and the entire rope jumping stand moves. In addition, when the weight of the user changes, it is difficult to change the support conditions to match the weight, and it is necessary to prepare a separate hob and jumping table each time.

On the other hand, the "acting table for rope jumping" disclosed in Japanese Utility Model Laid-Open No. 56-168167 has underframes on both side edges of a bottom plate, and an elastic plywood material obtained by superimposing an upper plate and a lower plate on this underframe. The elastic plywood member is held and provided with a plurality of cuts in the upper plate and the lower plate to give flexibility to the elastic plywood material. For this reason, it has a plurality of structures as a whole, resulting in high cost. Furthermore, when the user changes, it is necessary to use an elastic plywood material suitable for it. In addition, there is a problem that it is difficult to handle because of its high weight as a whole. Further, there is a problem that considerable force concentrates on the engaging portion of the underframe with the elastic plywood material, damaging the engaging portion and lowering the durability.

The present invention has been invented to solve the above problems, restrains the movement of the entire board during jumping operation, has stability, safety, and durability, and is easy to handle, and An object of the present invention is to provide a jumping board which is convenient, can change support conditions easily according to users, and can be implemented at a relatively low cost.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is a flat board which is bent and deformed in order to easily perform a jumping jump or a jumping motion. The board is a flexible board. And a cushioning support leg that is disposed at both end edges of the lower surface of the flat sheet body and elastically supports the flat sheet body on the floor surface. It is characterized in that an inclined surface which is inclined upward at an angle θ is formed. Further, the shock-absorbing support leg is detachably attached to the flat plate body and can be moved and arranged at an arbitrary position near an end edge of the flat plate body.

Further, the angle θ is formed at an angle at which the inclined surface comes into contact with the floor surface when the board is bent and deformed toward the floor surface side. Further, the elastic reinforcing member is a flat plate-shaped FRB fixed to the back surface of the upper plate.

Further, the elastic reinforcing member is a rubber plate attached to the back surface of the upper plate. Also,
The elastic reinforcing member is a spring member arranged on the back surface of the upper plate.

Further, the surface of the upper plate is provided with a display section for displaying a boarding position and a range of a user who performs a jump or the like. Further, a non-slip member is attached to the surface of the upper plate.

In the jumping board according to the present invention, a relatively inexpensive veneer plate is used as the upper plate, and the lack of strength and the lack of elastic force are complemented by the elastic reinforcing member. Also,
Various types of elastic reinforcing members can be applied and can be formed relatively easily and inexpensively. Further, in the jumping board of the present invention, since the buffer support legs supporting the upper plate are movable in the longitudinal direction of the upper plate, the bending rigidity of the upper plate can be changed according to the weight of the user. Further, an inclined surface is formed on the bottom surface of the buffer support leg, and when the upper plate is bent downward, the inclined surface almost entirely contacts the floor surface, so that stability is ensured. Further, since the position on which the user rides is displayed corresponding to the movement of the cushioning support legs, safety is ensured. Further, since a slip stopper is attached to the surface of the upper plate, the safety can be further improved.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a jumping board of the present invention will be described in detail below with reference to the drawings. First, Fig. 1
The overall schematic structure of the jumping board 1 according to the present embodiment will be described with reference to FIGS. Jumping board 1
Are roughly classified into an upper plate 2, an elastic reinforcing member 3 disposed on the back surface of the upper plate 2 to reinforce the upper plate 2 and enhance its bending rigidity, and the upper plate 2 on the floor surface 8 (or road surface). It comprises a cushion support leg 4 arranged on the edge of the upper plate 2 to support it, a cushion support leg moving mechanism 5 for moving the cushion support leg along the longitudinal direction of the upper plate 2, and the like. A slip stopper 6 (shown by a chain double-dashed line in FIG. 2) is provided on the surface of the upper plate 2, and a display unit 7 is further provided on the surface of the upper plate 2. The upper plate 2 held in a state where the bending rigidity is increased by the elastic reinforcing member 3 is
It is supported between the buffer support legs 4 and 4, and receives an upward reaction force that bends downward due to the load applied to the surface and returns to the original position. Therefore, a person (called a user) who rides on the upper plate 2 to perform a jump skip or the like moves to the upper plate 2 during the jump skip operation.
It receives the reaction force from, and the jumping is smooth, and you can perform a comfortable jump.

The upper plate 2 is made of a veneer plate as shown in FIG. 4, but in the present embodiment, an existing veneer plywood is applied. That is, the upper plate 2 is made of a three-layered veneer plate, but is not limited to this. The veneer plywood itself has appropriate strength and bending rigidity, but it is difficult for the veneer plywood alone to support the weight of a human at the time of rope jumping. That is, during the jumping motion, gravity that is less than twice the static load of a human acts on the upper plate 2 side. .

The elastic reinforcing member 3 is used to strengthen the bending rigidity of the upper plate 2 made of a veneer plate, to endure the gravity at the time of rope jumping, and to perform an appropriate bending deformation. In this embodiment, an FRP flat plate is used as the elastic reinforcing member 3.
As shown in FIG. 4, this FRP consists of three plies, but of course it is not limited to this. FRP is called reinforced plastics, and fiber reinforced plastics are usually used. That is, it is composed of a fiber reinforced body of a thermoplastic. Fibers include glass fiber, carbon fiber, aramid fiber and the like. By providing the elastic reinforcing member 3 on the back surface of the upper plate 2, the upper plate 2 has high strength and complements the bending rigidity of the upper plate 2 when it is used alone, and can withstand the human gravity and have an appropriate degree. It functions as a support plate that causes bending.

As shown in FIGS. 5 and 6, the buffer support leg 4 is made of a block body having an appropriate length with a substantially square cross section, and is made of, for example, a rubber material having a buffer function. An inclined surface 9 having an angle θ is formed on the bottom surface thereof. The inclined surface 9 is formed so as to incline upward toward the center of the upper plate 2. Further, as will be described later, the value of the angle θ is preferably formed at an angle such that the entire inclined surface 9 can come into contact with the floor surface 8 when the upper plate 2 is bent downward. A single-sided tape 10, for example, is fixed to the upper surface of the buffer support leg 4.

In this embodiment, the buffer support leg moving mechanism section 5 is composed of the tape material 11 shown in FIGS. 1, 2, 5, 7, and 8 and the like. This tape material 11 is the upper plate 2
It is composed of a strip-shaped flat plate having an appropriate length along the longitudinal direction, and is arranged in a set of two as shown in FIG. The length of the tape material 11 corresponds to the boarding range of the user who rides on the upper plate 2. As shown in FIG. 7, the buffer support leg 4 is fixed to the tape material 11 side by pressing the one-sided tape 10 against the tape material 11, and the buffer support leg 4 is moved along the longitudinal direction of the tape material 11. Then, the supporting position of the buffer support leg 4 with respect to the upper plate 2 can be easily changed by pressing the tape material 11 side at that position. Although the tape material 11 is provided only on one side of the upper plate 2 in the present embodiment, both of them may be used.

As shown in FIG. 1, the display portion 7 is displayed on the surface of the upper plate 2, and in the present embodiment, it is composed of a circle of the center O and a circle of the center O1 slightly deviated from the circle. . The range between the center O and the center O1 corresponds to the range in which the user can board. It should be noted that the length corresponds to the length dimension of the tape material 11 of the buffer support leg moving mechanism section 5 described above. That is, the center O corresponds to the center of the upper plate 2 in the longitudinal direction and in the plate width direction orthogonal thereto, and when the buffer support legs 4 are arranged at the same positions of both end edges of the upper plate 2, the user can Corresponds to the position where the rides. On the other hand, when the position of the buffer support leg 4 is moved according to the weight of the user, when the user gets on the position of the center O, the user gets on an eccentric position, and a smooth jumping motion can be performed. And become unstable. Therefore, the display unit 7 functions as one target indicating the correct position on which the user rides in response to the movement of the buffer support leg 4. If the user gets on a position beyond the center O1, the operation is almost unsuccessful, and of course there is a problem in terms of safety.

Next, the jumping operation of the jumping board 1 of the present embodiment will be described with reference to FIGS. 9 to 11. FIG. 11 shows a case where the buffer support legs 4 and 4 are arranged at the same positions on both edges of the upper plate 2. In this case,
As described above, the jumpy user 12 rides on the center O of the display portion 7 of the upper plate 2 to perform an action. When the user 12 does not jump up, the inclined surface 9 of the buffer support leg 4 is in contact with the floor surface 8 while maintaining the angle θ. That is, the inclined surface 9
The upper plate 2 is supported on the floor surface 8 in a state where only the outer corner portions 9 a of the above contact the floor surface 8. Therefore, the downward bending of the upper plate 2 is performed relatively smoothly, and an unreasonable force does not act on the fixing portion between the upper plate 2 and the shock absorbing support leg 4 or the shock absorbing support leg 4 itself. That is, it can function to improve durability.

FIG. 10 shows a state in which the user 12 jumps up. Prior to this jumping operation, the upper plate 2 is pressed by the user 12 and is largely bent downward as illustrated.
Due to the bending of the upper plate 2, the inclined surface 9 of the buffer support leg 4 is almost in contact with the floor surface 8 to stably support the upper plate 2. Therefore, the upper plate 2 does not move due to the user jumping up or landing. The curved upper plate 2 returns to its original position by the reaction force held by the time the user 12 lands. With the above, smooth skipping is performed.

In the case of a person who is relatively heavy, FIG. 9 and FIG.
With the bending rigidity of the jumping board 1 in the state shown in (1), the upper plate 2 bends too much downward, and an appropriate reaction force cannot be applied.
In this case, as shown in FIG. 11, one of the buffer support legs 4 is moved to the center of the upper plate 2 as shown. Due to the stiffness, the span interval for supporting the upper plate 2 is shortened, and the bending rigidity of the upper plate 2 is improved. In this case, the user 12 does not evenly bend the upper plate 2 because the load applied to the left and right buffer support legs 4 and 4 is uneven at the original center O position. Therefore, a position corresponding to the movement of the buffer support leg 4, for example, the center O1
When the user rides on the top, the left and right uniformity is maintained and a smooth jumping operation becomes possible. As described above, by changing the fixing position of the tape material 11 of the buffer support leg moving mechanism portion 5 and the buffer support leg 4, the users 1 having different weights
The single jumping board 1 can smoothly perform the jumping and jumping action.

As the elastic reinforcing member 3, a flat plate of FRP is adopted in the above-mentioned embodiment, but FIGS. 12 and 13 show another elastic reinforcing member. The elastic reinforcing member 3a in FIG. 12 uses a rubber plate 13. A thin rubber plate 13 is attached to the back surface of the upper plate 2 along the longitudinal direction thereof, and a plurality of thin rubber plates 13 are arranged side by side as shown in the drawing, thereby achieving substantially the same effect as the elastic reinforcing member 3. You can The entire surface of the rubber plate 13 may be attached to the upper plate 2 side, but only the both ends may be fixed to the upper plate 2.

The elastic reinforcing member 3b shown in FIG.
The upper plate 2 is provided with a plurality of 4 arranged side by side. With this, it is possible to obtain substantially the same effect as the elastic reinforcing members 3 and 3a.

In the above description, the material of the upper plate 2 is a veneer plate, but the material is not limited to this. Further, the elastic reinforcing member is not limited to the above-mentioned one, and may be any member that complements the bending rigidity of the upper plate. Also, the buffer support leg moving means is not limited to the above-mentioned means, and any device can be used as long as the buffer support legs can be easily moved.

[0023]

According to the jumping board of the present invention,
All users with different weights can easily and smoothly perform jumping jumps, etc., and stability and safety are ensured without moving during jumping operation, and no unreasonable force acts on each part. The durability can be improved and the effect can be achieved at a relatively low cost.

[Brief description of drawings]

FIG. 1 is a plan view of a jumping board of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a side view taken along the arrow B in FIG.

4 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 5 is a partial cross-sectional view showing a detailed structure of a cushion support leg.

FIG. 6 is a perspective view showing an overall structure of a cushion support leg.

FIG. 7 is a partial cross-sectional view showing an engaging structure between a buffer support leg moving means and a buffer support leg.

FIG. 8 is a bottom view of the engagement structure between the buffer support leg moving means and the buffer support leg, as viewed in the direction of arrow C in FIG. 7.

FIG. 9 is a schematic diagram for explaining a method of using the jumping board of the present invention.

FIG. 10 is a schematic diagram for explaining a method of using the jumping board of the present invention.

FIG. 11 is a schematic diagram for explaining how to use the jumping board of the present invention in the case of a heavy user.

FIG. 12 is a rear view of an upper plate showing another embodiment of the elastic reinforcing member.

FIG. 13 is a rear view of the upper plate showing another embodiment of the elastic reinforcing member.

FIG. 14 is a schematic view showing a conventional rope jumping table.

[Explanation of symbols]

1 jumping board 2 Upper plate 3 Elastic reinforcement member 3a Elastic reinforcing member 3b Elastic reinforcement member 4 buffer support legs 5 Buffer support leg moving mechanism 6 non-slip 7 Display 8 floor 9 inclined surface 9a Outside corner 10 single-sided tape 11 tape material 12 users 13 rubber plate 14 spring

Claims (2)

(57) [Claims] 1. A flat board which is bent and deformed in order to smoothly perform a jumping jump, a jumping motion, etc., the board comprising:
A flexible flat plate body, and a buffer support leg that is disposed at both end edges of the lower surface of the flat plate body and elastically supports the flat plate body on the floor surface,
The jumping board according to claim 1, wherein the buffer support leg has an inclined surface formed on a lower surface thereof so as to incline upward at an angle θ toward a center side of the flat plate body. 2. The buffer support leg is detachably attached to the flat plate body, and can be moved and arranged at an arbitrary position near an edge of the flat plate body. Jumping board.