Training ladder

Abstract

To provide a training ladder that can be used safely.SOLUTION: In a training ladder (1) of the present invention, a plurality of openings (21) serving as grids are arrayed in a predetermined direction. The training ladder (1) has a configuration in which a sheet-like body frame (20) having at least two or more of the openings is integrally formed with a flexible elastic material. As a result, it is possible to suppress generation of entanglement, distortion, crush or the like so that safe ladder training is enabled.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a training ladder. [Background technology]

[0002] A training ladder is one of the exercise equipments that is widely used for training in various sports. Training using a training ladder (ladder training) is expected to have the effect of improving the speed at which commands from the brain are transmitted to the muscles by performing quick step work, turning, deceleration and acceleration, etc.

[0003] As shown in Figure 7, the training ladder is placed on the floor or ground when used. The word "ladder" means a step ladder, and the user performs step work on the squares without touching the training ladder. However, since the conventional training ladder 1 is composed of two strings or bands 10 in the longitudinal direction and a plastic cross bar 11 attached thereto, it is prone to tangling, distortion, and crashing during use, and it is also difficult to return it to its original position. Furthermore, there is a risk of the user's foot getting caught on the ladder and falling over, as shown in Figure 8. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3034981 [Patent Document 2] Utility Model Registration No. 3037747 [Patent Document 3] Utility Model Registration No. 3109885 Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has been made based on the above-mentioned circumstances, and an object of the present invention is to provide a training ladder that can be used safely. [Means for solving the problem]

[0006] That is, the gist of the present invention is as follows. (1) The training ladder of the present invention is a training ladder having a plurality of openings arranged in a predetermined direction in a grid pattern, and is characterized in that a sheet-like main body frame having at least two of the openings is integrally formed from a flexible elastic material. (2) The main body frame is integrally formed from a rubber material. (3) At least two of the openings are arranged in a row. (4) The opening is triangular, rectangular or polygonal in shape with the corners formed into rounded or curved faces. (5) The main body frame has a surface treatment applied to all or part of its surface. Effect of the Invention

[0007] The present invention is a training ladder with a plurality of openings arranged in a predetermined direction, and the sheet-like main body frame having at least two openings is integrally formed from a flexible elastic material, so that the shape can be stably maintained during use. In other words, the strength, weight, and restoring force of the main body frame can prevent tangling, distortion, crashing, etc. from occurring. As a result, safe ladder training can be performed. [Brief description of the drawings]

[0008] [Figure 1] 1A and 1B are a plan view and longitudinal and lateral side views of a training ladder according to an embodiment of the present invention; [Diagram 2] FIG. 2 is an explanatory diagram of the size of the training ladder. [Diagram 3] FIG. 2 is an explanatory diagram of the training ladder when in use. [Figure 4] FIG. 2 is an explanatory diagram of the training ladder when in use. [Diagram 5]FIG. 11 is an explanatory diagram of the training ladder when stored. [Figure 6] This is another form of the training ladder. [Figure 7] FIG. 1 is an explanatory diagram of a conventional training ladder. [Figure 8] FIG. 1 is an explanatory diagram of a conventional training ladder. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, a training ladder according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the technical scope of the present invention is not limited to the following embodiments.

[0010] A training ladder 2 of this embodiment is shown in Figs. 1 to 6. As shown in the plan view of Fig. 1 in particular, the training ladder 2 has a ladder-shaped main body frame 20 formed by forming square openings 21 aligned in the longitudinal direction in a sheet having a rectangular outline. The sheet forming the main body frame 20 of the ladder is a single flexible elastic sheet. That is, the main body frame 20 is made of a flexible elastic material, and the frames 20a, 20b in the longitudinal and lateral directions are integrally formed. Thus, the training ladder 2 of this embodiment has a fundamentally different configuration from the conventional training ladder 1 in which the longitudinal frame is formed of a string or belt and the lateral frame is formed of a plastic horizontal bar.

[0011] A preferred example of the flexible elastic material forming the main body frame 20 is a rubber sheet. There is no particular limitation on the type of rubber, and synthetic rubber, natural rubber, silicone rubber, fluororubber, urethane rubber, etc. can be used. It is preferable to select a rubber with a relatively high specific gravity and rubber hardness so that it can be stably installed on the floor or ground and can suppress crashes even if it is stepped on with a foot during use. Examples of rubber with a relatively high specific gravity and rubber hardness include EPT rubber, CNR rubber, natural rubber, and neoprene rubber. The specific gravity is, for example, 0.91 to 1.70, and among these, 1 or more is preferable. It may be 1.5 or more. The rubber hardness is preferably 41° to 88° (type A durometer; A41 to A88), and among these, 60° or more is preferable, and 60° to 65° is more preferable. Note that the main body frame 20 may be formed using a sheet of another material, not necessarily a rubber sheet, as long as it has flexible elasticity.

[0012] The rectangular openings 21 constituting the grid are preferably square, and the corners are preferably rounded to form R faces (R corners). They may also be chamfered to form C faces (C corners).

[0013] As shown in FIG. 2, the size of the training ladder 2 is, for example, a standard size of length L1 of 1450 mm and width W1 of 500 mm. The thickness T is 3 mm or 4 mm. The thickness T may be appropriately selected within a range of 3 mm to 6 mm. In the example shown in the figure, the corners of the outer frame are rounded (corner R20 mm). The size of the opening 21 that forms the grid is a square with a length L2 of 450 mm and a width W2 of 450 mm, and the corners are rounded (corner R60 mm). The width FW1 of the longitudinal frame 20a and the width FW2 of the lateral frame 20b are both 25 mm. When making different sizes, for example for children, it is better to make them similar in shape.

[0014] As a modified example, the main body frame 20 may be subjected to a surface treatment. One example of the surface treatment is embossing. The unevenness of the surface adjusts the friction resistance against the floor or ground. The surface can also be patterned to enhance the design. Another example of the surface treatment is surface coating. Water does not soak into the rubber sheet itself, but the surface may be coated to increase, for example, the water repellency.

[0015] The training ladder 2 can be formed by cutting out the main body frame 20 from a single sheet (e.g., a rubber sheet) by, for example, mechanical processing or laser processing. Alternatively, the main body frame 20 may be formed by molding using a mold.

[0016] The above-mentioned training ladder 2 is used by placing it on the floor or the ground as shown in Figures 3 and 4. Training using the training ladder 2 can be used widely for training in various sports, just as in the past.

[0017] In particular, the training ladder 2 of this embodiment is suitable for Agilism training, which was invented by the present inventor (Toru Kinoshita). Agilism is a coined word that combines Agility (the ability to control the body during exercise) and Rhythm, and means "the fusion of dance and training," and is a training method that expresses rhythm through body movement. Depending on the expression method, there are various ways to take the rhythm and use the body, and it is a very groundbreaking training that does not simply move the body but also works on "sense of rhythm x body control skills," and can aim to acquire "motor skills" that can respond to any rhythm.

[0018] After use, the training ladder 2 can be compactly folded up by overlapping the short-side frame 20b portions as shown in FIG. 5. It is preferable to fasten the overlapped frame 20b portions with a band or place them in a storage bag so that the main frame 20 does not return to its original state due to the restoring force of the main frame 20. Storage Conventional foldable integrated ladders are folded and stacked in the shape of a mass because the outer frame is made of a plastic material. In contrast, the elastic integrated training ladder 2 of this embodiment has an integrated mass, but can be stored compactly like a normal training ladder 1.

[0019] According to the above-mentioned training ladder 2, the ladder-shaped frame (main frame 20) in the longitudinal and transverse directions is integrally formed from an elastic material, so that tangling and distortion are unlikely to occur. Furthermore, even if the frame 20b is stepped on during quick step work, for example, the strength, weight, and restoring force of the frame 20b can prevent the frame 20b from crashing. For this reason, it is preferable to form the main frame 20 from rubber. In addition, by making the corners R-faced or C-faced and widening the bottom toward the longitudinal frame portion, the effect of preventing the transverse frame 20b from shifting sideways or twisting even if it is stepped on with a foot is enhanced. If the corners are 90 degrees, for example, when the frame 20b is stepped on with a foot, it may crack and break, but this can be prevented.

[0020] Another advantage of the training ladder 2 is that each frame 20a, 20b is in stable surface contact with the floor or ground, making it difficult for skidding to occur. For this reason too, it is preferable to form the main frame 20 from rubber, which has high frictional resistance. Furthermore, by applying a textured finish or the like, the back side increases the frictional resistance with the floor or ground, and the front side prevents the foot from slipping when stepped on.

[0021] Furthermore, if the main body 20 is made of a rubber sheet, rubber does not absorb water, so even if it rains while using the ladder outdoors, it is possible to prevent the longitudinal cords or bands from absorbing water and generating bad odors, as was the case with the conventional training ladder 1. The rubber does not absorb sweat, which also has the effect of suppressing bad odors.

[0022] As a preferred example, the training ladder 2 with three openings 21 arranged in a row has been described, but the number of openings 21 can be increased or decreased. At least two or more is sufficient. FIG. 6 shows a training ladder 2 with seven openings 21 arranged in a row. Of course, the number of openings 21 can be increased by preparing a plurality of training ladders 2 with three openings 21 as shown in FIG. 1 and connecting them together. The arrangement direction of the openings 11 is not limited to being in series. For example, the arrangement direction can be changed, such as arranging in a cross direction or an L-shape direction. Furthermore, the shape of the openings 21 is not limited to being rectangular, but may be a triangle, or a polygon such as a hexagon or octagon.

[0023] Although the present invention has been described in detail with reference to specific embodiments, it will be apparent to those skilled in the art that various substitutions, modifications, changes, etc. in form and detail can be made therein without departing from the spirit and scope of the present invention as defined by the claims. [Explanation of symbols]

[0024] 2 Training ladder 20 Main frame 20a Frame (longitudinal direction) 20b Frame (short side) 21 Opening

Claims

1. A training ladder having a plurality of openings arranged in a predetermined direction, A training ladder characterized in that a sheet-like main body frame having at least two openings is integrally formed from a flexible elastic material.

2. 2. The training ladder according to claim 1, wherein the main body frame is integrally formed from a rubber material.

3. 3. The training ladder according to claim 1, wherein at least two of the openings are arranged in a row.

4. 3. The training ladder according to claim 1, wherein the opening is triangular, rectangular or polygonal with rounded or curved corners.

5. 3. The training ladder according to claim 1, wherein the main body frame has a surface treatment applied to all or part of its surface.

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