WO2006006216A1

WO2006006216A1 - Buffer mat for gymnastics

Info

Publication number: WO2006006216A1
Application number: PCT/JP2004/009824
Authority: WO
Inventors: Atsushi Harinishi; Katsuo Kita
Original assignee: Ngc Corporation; Ashimori Industry Co., Ltd.
Priority date: 2004-07-09
Filing date: 2004-07-09
Publication date: 2006-01-19
Also published as: US20070173379A1

Abstract

A buffer mat (1) for gymnastics, wherein a large number of joining threads (13) of a specified length are stretched across the opposed faces of two sheets of internal sheets (12a) and (12b) to form a joined body (11) having a space (14) between the opposed faces. The joined body (11) is covered by air impermeable external sheets (20) and (21) to form a mat body (10) having the space (14) brought into an air-tight state. Also, a supply and exhaust port (22) supplying and exhausting air into and from the mat body (10) and capable of being closed is fitted at a specified position on the mat body (10).

Description

Specification

Gymnastics cushion mat

Technical field

[0001] The present invention relates to, for example, tumbling practice in gymnastics, iron bars, floor motion, jumping horses, suspension rings, horses, parallel bars, uneven parallel bars, balance stands, and their practice, bound jump practice. It is related with the buffer mat for gymnastics used widely.

Background art

[0002] In gymnastics competitions and exercises, gymnastics buffer mats are laid to absorb the impact of Jim Nast landing and accidental fall and fall. As the technique increases, the impact force at the time of landing tends to increase, and the gymnast can improve the safety of Jim Nast by absorbing this impact in a well-balanced manner. Development of buffer mat technology is being promoted every day.

[0003] Further, in the buffer mat used for the tumbling practice and the jumping practice, higher rebound resilience is required than the above-described landing buffer mat in order to reduce the impact of Jim Nast on the body.

[0004] Conventional gymnastic cushion mats are generally employed in which a foaming synthetic resin cushioning material is accommodated in a cover sheet made of turbolin or canvas (for example, Japanese Patent No. 2595486, Japanese Patent Laid-Open No. Hei. 11-76452 and JP-A-11-244412).

[0005] The conventional cushion mat is heavy when the cushioning material is made of foamed synthetic resin, but is made of a size having an area for safely receiving the body of Jim Nast. For this reason, a labor is required for conveyance work and arrangement work. In addition, since the resilience against bending is high, it cannot be folded during storage and takes up storage space.

[0006] Further, in the tumbling practice, if the resilience is insufficient, there is a problem that the amount of practice has to be limited because the burden on the body is great if the resilience is insufficient.

[0007] Further, although the appropriate value of the impact resilience of the buffer mat differs depending on the age of the user and the sporting event, the conventional mat cannot adjust the impact resilience, and the strength of the cushion mat is also due to the aging deterioration of the cushioning material. The decrease in elastic force is inevitable.

Disclosure of the invention

[0008] The present invention solves the above-mentioned problems of the prior art, has a sufficient shock absorption property, can ease the burden on the body, is lightweight, has excellent storage properties, and is adjusted to a desired rebound resilience. An object is to provide a cushion mat for gymnastic exercises.

[0009] In order to achieve the above object, a gymnastics buffer mat according to the present invention has a configuration described in [1] to [10] below.

[1] A connecting body (11) having a space (14) between the opposing surfaces by passing a number of connecting yarns (13) between the opposing surfaces of the two inner sheets (12a) and (12b). In addition, the mat body (10) that seals the space (14) is formed by covering the linking body (11) with a non-breathable outer sheet (20X21), and the mat (10) is further formed. A gymnastic buffer mat comprising a supply / discharge rod (22) capable of supplying and discharging air into and from the space (14) at a required position of the main body (10).

[0011] [2] The gymnastic cushion mat according to [1], wherein the inner sheets (12a) and (12b) are woven fabric.

[3] The gymnastic buffer pine according to [2], wherein the connecting yarn (13) is woven into the woven fabric.

[4] The gymnastics cushion mat according to [1], wherein the density of the connecting yarns is 1 to 5 Zcm ² .

[5] The buffer mat for gymnastics according to [2], wherein the density of the connecting yarns is 1 to 5 Zcm ² .

[0015] [6] The gymnastics cushion mat according to [3], wherein the density of the connecting yarns is 1 to 5 Zcm ² .

[7] The gymnastics buffer mat according to [1], wherein the outer sheet (20X21) is made of urethane resin.

[8] The cushion mat for gymnastics according to [1], wherein an exterior sheet (30) is stuck on the surface of the mat body (10), [1] any force of [7].

[9] The gymnastic cushion mat according to [8], wherein the exterior sheet (30) is a raised sheet.

[10] The gymnastics cushion mat according to [8], wherein the exterior sheet (30) is attached to the mat body (10) via an auxiliary sheet (31).

According to the gymnastics cushion mat of the present invention, the rebound resilience can be freely controlled by adjusting the air pressure in the mat body, and the rebound resilience suitable for the age of the user and the content of the game can be obtained. Moreover, the desired resilience can be reproduced any number of times. In addition, since it is lightweight and the resilience disappears when air is discharged, it can be folded freely, making it easy to carry and reducing the storage space.

[0020] In the gymnastic cushion mat, when the inner sheet is a woven fabric, it is possible to maintain the flatness of the mat by suppressing the elongation of the outer sheet, and it is advantageous for weaving the connected yarns. . Further, when the connecting yarn is woven into the woven fabric, these strong binding forces can be obtained.

[0021] In the gymnastic buffer mat, when the density of the connecting yarns is 115 / cm ² , appropriate strength can be obtained.

[0022] In the gymnastic cushion mat, when the exterior sheet is made of a urethane resin, it has excellent properties such as elastic modulus, load resistance, mechanical strength, oil resistance, chemical resistance, and wear resistance. You can do with a mat.

[0023] In the gymnastic cushion mat, the surface properties of the mat can be freely changed by attaching an exterior sheet to the surface of the mat body. Further, when a brushed sheet is used as the exterior sheet, a mat having a good touch feeling can be obtained. Further, if the exterior sheet is attached to the mat body via an auxiliary sheet, an exterior sheet having poor adhesion to the mat body can be used.

Brief Description of Drawings

FIG. 1A is an overall perspective view showing an embodiment of a buffer mat for gymnastics according to the present invention.

1B is a cross-sectional view taken along line 1B-1B in FIG. 1A.

FIG. 2 is a cross-sectional view showing another airtight treatment method at the peripheral edge of the gymnastics buffer mat.

FIG. 3 is a cross-sectional view of a principal part showing another embodiment of the gymnastics cushion mat according to the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1A and FIG. IB show an embodiment of the gymnastics cushion mat of the present invention.

[0026] The gymnastic buffer mat (1) obtains rebound resilience and reduces impact by enclosing compressed air in the airtight mat body (10).

[0027] The mat body (10) includes a connecting body (11) for setting a planar dimension and a thickness of the mat, and an external sheet (20) that covers the connecting body (11) to ensure airtightness and strength. Composed by ing.

[0028] The linking body (11) includes two inner sheets (12a) and (12b) made of a rectangular woven fabric corresponding to the planar dimensions of the mat, and the inner (12a) and (12b) sheets facing each other. It is composed of a number of connecting yarns (13) of a predetermined length that connect the surfaces. The continuous thread (13) is partly pulled out of the inner sheet (12a) of the inner sheet (12a) and woven as the other inner sheet (12b), and is pulled out of the other inner sheet (12b) and again. One inner sheet (12a) is woven as a thread. The weaving by weaving and weaving this yarn is repeated on the entire inner sheet (12a) (12b), so that the two inner sheets (12a) and (12b) become the length of the connecting yarn (13). They are separated from each other by a corresponding distance and are linked to each other in an opposing state to form a space (14). That is, the length of the connecting yarn (13) defines the thickness of the space (14), and thus the thickness of the mat body (10).

[0029] The inner sheets (12a) and (12b) define the mat dimensions and hold the connecting yarn (13), and any of them can be used as long as they have these functions. Further, since the inner sheets (12a) and (12b) are reinforced by being covered with an outer sheet (20) described later, it is not necessary to have a strength that can withstand the internal pressure of the mat or a connecting yarn holding force. Therefore, the woven fabric constituting the inner sheets (12a) and (12b) can be sufficiently used even if they are thin and rough. In addition to various woven fabrics, knitted fabrics and non-woven fabrics can also be used. Among these, a woven fabric that can maintain the flatness of the mat by regulating the extension of the outer sheet (20) due to the internal pressure of the mat body (10) and is advantageous for weaving a large number of connecting yarns (13). Can be recommended.

[0030] In addition, the connecting yarn (13) is a thickness of the space (14) that is an interval between the two inner sheets (12a) and (12b) in a state where tension is applied to the connecting yarn (13) by internal pressure. In addition, since the thickness of the mat body (10) is defined, it is preferable that the mat body (12a) (12b) is present almost uniformly on the entire surface in order to ensure a uniform thickness. . Density of interlocking yarns (13) 1 one five ZCM ² is good better les. If the amount is less than the above range, it is difficult to make the thickness uniform or maintain the strength against internal pressure. On the other hand, if the number exceeds the above range, the number of manufacturing steps of the linked body (11) increases. Can not expect. A particularly preferable density of the connecting yarn (13) is 2-3 / cm ² . Further, in this embodiment, the force S that strongly connects the inner sheets (12a) (12b) and the connecting yarn (13) by weaving the connecting yarn (13) into the inner sheets (12a) (12b). Just sewed There may be. Further, the length of the connecting yarn (12) can be freely set according to the desired mat thickness. Further, a large number of connecting yarns (13) may be passed across the inner sheets (12a) and (12b) in parallel as shown in FIG.

[0031] In the connection body (11) described above, the materials of the inner sheets (12a) (12b) and the connection thread (13) are not particularly limited, and natural fibers such as cotton, rayon, nylon, polyester, polypropylene, etc. Can use synthetic fibers. Further, the inner sheet (12a) (12b) and the connecting yarn (13) may be either the same fiber or different fibers.

[0032] The linking body (10) is entirely covered with a non-breathable upper and lower outer sheet (20X20) and a side outer sheet (21) in an airtight state, and is a mat body (10 ) Is formed.

[0033] The upper and lower outer sheets (20X20) are formed to have the same dimensions as the inner sheets (12a) and (12b), and are joined to the entire outer surfaces of the inner sheets (12a) and (12b). On the other hand, the outer sheet for the side surface (21) is formed in a tape shape wider than the thickness of the connecting body (11), and both end portions in the width direction are overlapped and joined to the peripheral edge portion of the outer sheet for upper and lower surfaces (20X20). While wrapping around the side of the linkage (11), it covers the four sides. As a result, the upper and lower surfaces and the four side surfaces of the connecting body (11) are all covered in an airtight state, and a mat body (10) having a space (14) therein is formed.

[0034] The inner sheets (12a) and (12b) and the upper and lower surface outer sheets (20) do not need to match the planar dimensions of the mat. For example, as shown in FIG. 2, these dimensions can be formed slightly larger than the planar dimensions of the mat, and the peripheral edge (20a) can be extended to the side surface. As a result, the side surface of the mat (1) can be reinforced.

[0035] The upper and lower outer sheets (20) and the side outer sheets (21) are non-breathable, have strength to withstand impact and internal pressure at the landing of Jim Nast, and can be bent freely. It is made of a material having a certain degree of flexibility. Specific examples include sheets made of synthetic resin such as chlorinated resin, olefin resin, urethane resin, etc., and elastic modulus, load resistance, mechanical strength, oil resistance, chemical resistance, wear resistance. In particular, urethane resins can be recommended because of their excellent properties. Polyurethane elastomers with particularly high elastic modulus can be recommended as urethane resins. The purpose is to improve various properties such as the strength of the sheet. Mixing of various fillers is also permitted. The thickness of the sheet (20X21) is preferably 0.3 to 1.5 mm from the viewpoint of achieving both strength and light weight.

[0036] The upper and lower surface outer sheets (20) and the side surface outer sheet (21) are joined by a method capable of maintaining airtightness such as pressure bonding, welding, and adhesion with an adhesive. Further, when joining to the inner sheets (12a) and (12b), a synthetic resin imparted with fluidity can be applied to the inner sheets (12a) and (12b), and then cured and solidified to form a sheet. Also, since the airtightness of the joints (15) of the two inner sheets (12a) and (12b) is likely to be impaired, it is also possible to secure the airtightness by double-bonding the outer sheets as shown in Fig. 2. preferable. In the illustrated example, a narrow auxiliary external sheet (21 ′) is pasted on the seam portion (15), and a wide side section external sheet (21) is pasted thereon.

[0037] Furthermore, the outer sheet (20) and the inner sheet (12a) are penetrated near the corner of the upper surface of the mat body (10), and can be closed in an airtight state by a lid or a valve (not shown). A supply / discharge port (22) is provided. The supply / discharge port (22) is detachably connected to an air injection pump (not shown), and air is supplied / discharged into the space (14) of the mat body (10) through the supply / discharge port (22). Is called. The supply / discharge rod (22) need only be installed at one location, but it may be installed at two or more locations in order to quickly perform the air supply / discharge operation. Further, the installation position is not limited, and the installation position can be set at an arbitrary position on the top and bottom surfaces or side surfaces.

[0038] In the buffer mat for gymnastics of the present invention, when the mat body (10) is formed in an airtight state, the outer sheet (20X21) has a dense and smooth surface material such as the above-described synthetic resin sheet. Often used. These synthetic resin sheets are not always good in terms of slipping and touch when landing. With regard to the surface properties of such mats, various surface properties such as the feel of the mat surface and frictional resistance can be changed by attaching an exterior sheet having the desired surface properties to the surface of the mat body (10). be able to.

[0039] The gymnastics cushion mat (2) shown in Fig. 3 is obtained by attaching an exterior sheet (30) to the upper surface and the lower surface of the mat body (10). The exterior sheet (30) is a carpet-like sheet in which one side (30a) of a woven fabric made of synthetic fibers is raised and has a good feel, and the other side (30b) is exposed to unevenness due to the weave. It is. The outer sheet (30) is sewn to the auxiliary sheet (31) of the same quality as the upper and lower outer sheet (20) on the other side (31b), and the auxiliary sheet (31) is sewn to the upper and lower outer sheet. It is joined to the mat body (10) by bonding to the seat (20). Joining via the auxiliary sheet (31) is because the airtightness is lost from the stitches when sewing directly to the outer sheet (20), and the surface unevenness on the other side (30b) of the exterior sheet (30). Adhesive force to the external sheet (20) with high bonding force S Difficult. In addition, the method of joining the auxiliary sheet (31) to the outer sheet (20) is not limited as long as the airtightness is not impaired, and it may be joined by crimping or welding. In addition, when the exterior sheet has high adhesion to the upper and lower outer sheets (20), it can be directly pasted without using the auxiliary sheet (31).

[0040] The above-described gymnastic buffer mat (1) (2) is supplied with two inner sheets (12a) when air is supplied into the space (14) of the mat body (10) via the supply / discharge rod (22). ) (12b) is separated to a distance corresponding to the length of the connecting yarn (13), and the mat body (10) has a constant thickness. When air is further supplied, the separation distance between the inner sheets (12a) and (12b) is regulated by the connecting yarn (13), so that the tension applied to the connecting yarn (13) increases while maintaining a certain thickness. The air pressure rises while holding Since the air pressure is reflected in the resilience, it is possible to freely control the resilience of the mat according to the air pressure setting. As long as the airtightness of the mat body (10) is not impaired, the desired resilience can be reproduced any number of times.

[0041] The appropriate value of mat rebound resilience depends on the age of gymnast and the content of practice. Expressing an example of the appropriate value of rebound resilience in terms of air pressure, 10.3kPa (l .5psi) for infant physical education, and for elementary school physical education 12. 4kPa (l. 8psi), 13.8kPa (2. Opsi) for female junior tumbling practice, 27.6kPa (4. Opsi) for male tumbling practice. In particular, when tumbling exercises have the above-mentioned rebound resilience, a sufficient amount of exercise can be achieved because there is no excessive burden on the body and less fatigue. In addition, when using as a hopping mat for silk jump practice or a runway, it is preferable to set the air pressure according to the weight of Jim Nast S, preferably 13.8 kPa (2. Opsi) at 35 kg body weight, 20.7 kPa at 45 kg (3. Opsi), 54 kg to f 24. lkPa (3.5 psi), 65 kg to f 27.6 kPa (4. Opsi).

[0042] On the other hand, when the air in the mat body (10) is discharged, the tension applied to the connecting yarn (13) is lost and loosened, and the inner sheet (12a) (12b) is not restrained by the separation distance and rebounds. Elasticity is lost. For this reason, the mats (1) and (2) can be folded freely. Also, the conventional mat In addition, no cushioning material made of foamed synthetic resin is used, and the substantial weight is only the mat body, so it is lightweight. Therefore, transport work is easy and storage space is small. The terms and expressions used here are used for explanation and are not used for limited interpretation. It should be recognized that various modifications within the claimed scope of the invention are not to be construed as excluding any equivalents of the features shown and described herein.

Industrial applicability

The buffer mat for gymnastics of the present invention can be used when performing various gymnastics competitions and exercises.

Claims

The scope of the claims

By passing a large number of connecting yarns (13) between the opposing surfaces of the two inner sheets (12a) and (12b), a connecting body (11) having a space (14) between the opposing surfaces is obtained. A mat body (10) that makes the space (14) airtight is formed by covering the connecting body (11) with a non-breathable outer sheet (20X21), and further, the mat body (10) is required. A gymnastics cushioning mat comprising a supply / discharge rod (22) capable of closing and closing air in and out of the space (14) at a position.

The gymnastic cushion mat according to claim 1, wherein the inner sheets (12a) and (12b) are woven fabric. The interlocking yarns (13) are gymnastics buffer of claim 1 Density of gymnastics for the shock absorbent mat the interlocking yarn according is 1 one five / cm ² to claim 2 which is woven into fabric weave the mat. The gymnastic cushion mat according to claim ² , wherein the density of the continuous yarn is 115 / cm2. 4. The gymnastic cushion mat according to claim 3, wherein the density of the connecting yarns is 115 / cm ² . The gymnastic buffer mat according to claim 1, wherein the outer sheet (20X21) is made of urethane resin.

The gymnastic cushion mat according to any one of claims 1 to 7, wherein an exterior sheet (30) is attached to a surface of the mat body (10).

The gymnastic cushion mat according to claim 8, wherein the exterior sheet (30) is a raised sheet.

The exterior sheet (30) is attached to the mat body (10) via an auxiliary sheet (31).

The buffer mat for gymnastics according to 8.