JP2002227440A - Set of walking mat and connecting hook, walking mat and connecting hook - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a set of an underwater walking mat and a connecting hook capable of being firmly connected with each other and easily carrying out assembly or disassembly at a site. SOLUTION: The walking mat 10 is so constituted that grooves 11 are formed in the lower circumferential edge section, through-holes 12 are formed in sites of the upper surfaces opposed to the grooves 11, projections 13 and 14 for stimulating pressure spots on the bottom of feet are formed in the approximately whole surface of the upper surface and that one or more specific gravity is included. The connecting hook 20 connecting both mats 10 with each other is constituted of a substrate 21 formed in the approximately same thickness as the depth of each of the grooves 11 and projections 22 and 23 inserted in the through-holes 12. Each of the projections 22 and 23 has the same shape as that of each of the projections 13 and 14 formed in the mat 10, the heads of the projections 22 and 23 are projected to the upper surfaces of the mat 10 to increase the connecting strength in a connecting state, and when the mat is used, the projections are operated for stimulating the pressure spots on the bottom of feet. A large number of mats 10 are connected with the connecting hook 20, and the mats are laid on the bottom of a swimming pool to use them in the case of underwater walking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a walking mat laid on the bottom of a swimming pool and a connecting hook for connecting the mats.

[0002]

2. Description of the Related Art Removable mats to be laid on the bottom of a swimming pool are roughly classified into buffer mats mainly intended for protection of swimmers who dive and the like, and underwater walking mats. As an underwater walking mat, a mat having a massage function in which projections for stimulating acupoints on the soles of the feet are arranged on the surface is known. The present invention relates to an underwater walking mat having such a massage function.

[0003] As an underwater walking mat having a massage function, a product called a pool floor mat has been conventionally sold by Mizuwa Industry Co., Ltd. This is a sheet-like mat with a thickness of 12 mm, a width of 600 mm, and a length of 5 m, which is made of soft PVC, and has uniformly-spaced protrusions for stimulating acupoints on the entire surface of the mat. ing. When using, place a mat on the bottom of the swimming pool. The mat is fixed to the bottom of the pool with the attached suction cup, because it is relatively lightweight, so that it floats as it is or shifts during underwater walking. Therefore, the installation condition is that the pool bottom surface is easy to attach a suction cup. When one mat is not enough, a large number of mats are used. However, there is no mechanism for connecting the adjacent mats, and the mats are simply laid.

[0004] On the other hand, various types of cushion mats have conventionally been proposed or put into practical use. For example, Japanese Utility Model Application Laid-Open No. 63-167177 (Japanese Utility Model Application Laid-Open No. 2-87874) discloses that a cushioning material such as a synthetic rubber foam, a rubber sheet, or a liquid such as water is provided inside an exterior material such as a synthetic resin sheet. A cushioning mat having a specific gravity of 1 or more is disclosed. The size is about 5 cm in thickness and about 1 m in length and width. When using, place a buffer mat on the bottom of the swimming pool.
As a method of connecting adjacent buffer mats, (1) Eyelets are provided on the side surfaces of the buffer mats and connected by ropes or hooks. (2) Fasteners are attached to the side surfaces of the cushioning mat and connected. (3) A detachable tape is attached to the side surface of the cushioning mat and connected. And other methods have been disclosed.

Another structure of the cushioning mat is disclosed in JP-A-9-14.
No. 4352 describes this as an underwater cushion mat. As shown in FIG. 6, the mat has a structure in which a weight body 101 is accommodated in a flat box-shaped cushion body 100 having a lower surface opening, and the weight body 101 is covered with a wear-resistant soft protective sheet 102 from below. In addition, a connection uneven portion 103 is formed on a side edge portion. The cushion body 100 is formed of a polyethylene foam, a polypropylene foam, a polyvinyl chloride foam, or a polyethylene-styrene graft copolymer foam, and the weight body 101 uses a metal plate such as an iron plate.
The abrasion-resistant soft protective sheet 102 uses synthetic rubber or natural rubber such as soft urethane rubber. The size of one mat is 30mm ~ 40mm thick, 500mm length and width
It is about 800 mm. At the time of use, adjacent mats are connected by the connection unevenness portion 103, and are laid on the bottom of the swimming pool.

[0006]

A conventional underwater walking mat in which protrusions for stimulating the acupoints of the soles are arranged on the surface is a sheet-like mat made of soft PVC, so that the mat may float as it is. There is a problem that it shifts during walking underwater. In order to prevent this, in the method of fixing to the bottom of the pool with a suction cup, it is necessary that the bottom of the pool is easily attached with a suction cup, and the applicable swimming pool is limited. Another problem is that many suction cups cannot be attached due to cost and installation space, and the suction cups are easily deteriorated. Furthermore, since there is no mechanism for connecting the mats, the effect of increasing the strength against lifting and displacement due to the connection between the mats cannot be expected.

On the other hand, a conventional buffer mat mainly intended for protection of a swimmer or the like has a specific gravity of 1 or more and has a mechanism for connecting the mats to each other. It is unlikely to lift or shift.
However, since there is no projection provided on the upper surface of the mat to stimulate the acupoints on the soles of the foot, the mat cannot be used as an underwater walking mat having a massage function.

Further, as a mechanism for connecting the mats,
The method of connecting with a rope, hook, or the like has a risk that the rope or the like may be caught on a foot during underwater walking and cause an accident, and there is a problem in strength with a fastener or a detachable tape. Further, in any case, work underwater is relatively difficult.

Further, as shown in FIG. 6, the connection unevenness 103 is provided on the side edge portion, and the connection unevenness 103 of the adjacent mat is provided.
In the method of connecting by fitting each other, a large stress is applied to the convex portion indicated by reference numeral 104 in FIG. For this reason, if the thickness of the mat itself is not sufficient, the mat has no strength. Since the main purpose of the cushioning mat is to cushion it,
Such a connection structure may be used because the connection structure is relatively thick, such as 50 mm to 50 mm. However, the underwater walking mat has a secondary cushioning function, and needs to be thinned to about 10 mm so as not to be affected by the water flow as much as possible. Also, since only the connection unevenness 103 between adjacent mats is fitted,
When the mat becomes thinner, the mating state is easily released. For this reason, the connection structure shown in FIG. 6 is not suitable for an underwater walking mat.

An object of the present invention is to provide a set of a walking mat and a connecting hook which can firmly connect adjacent mats.

Another object of the present invention is to provide a set of a walking mat and a connecting hook which can be easily installed on site.

Another object of the present invention is to provide a set of a walking mat and a connecting hook in which projections for stimulating acupoints on the sole of the foot can be arranged over substantially the entire laying surface including the connecting portion. It is in.

[0013]

A set of a walking mat and a connecting hook according to the present invention has a plurality of projections and a through hole formed on an upper surface and a specific gravity of 1 or more, preferably 1.
A set of two or more walking mats and connecting hooks for connecting the walking mats, wherein the connecting hooks are inserted into the respective through holes of the two walking mats connected to each other. A plurality of projections formed on the walking mat, and a head of the projection projecting from the upper surface of the walking mat in a connected state has substantially the same shape as a projection formed on the walking mat. It is desirable that the connecting hook also has a specific gravity of 1 or more.

More specifically, in the walking mat of the present invention, a groove is formed in a peripheral portion of a lower surface, and a through hole reaching the groove is formed in a portion of an upper surface opposed to the groove, excluding the through hole. A protrusion is formed on substantially the entire upper surface, the specific gravity is 1 or more, and the hardness is, for example, 35 ° to 45 °.
°, preferably about 40 ° of synthetic rubber.
The shape of the projection is preferably a rounded shape because it is stepped on with bare feet. Each of the projections may have the same shape and be formed at equal intervals. However, in order to enhance the massage effect, two types of projections, a small projection and a large projection that is wider and higher than the small projection. Are preferably formed alternately at equal intervals. The interval between the protrusions is arbitrary, but the vertical and horizontal intervals are 45 degrees.
It has been confirmed that a diameter of about mm is convenient and the massage effect is high. Although the shape and size of the mat are arbitrary, it is preferable to adopt a square shape of about 50 cm in length and width for ease of carrying and storage, and for easy connection of the mats. It is preferable that the distance is set to about 10 mm so as not to be received.

On the other hand, the connecting hook of the present invention for connecting the walking mats to each other has a thickness substantially equal to the depth of a groove formed in a peripheral portion of the lower surface of the walking mat, and has a left half connected to each other. A substrate inserted into the groove of the mat, the right half of which is inserted into the groove of the other mat connected to each other, and a groove formed at a portion of the upper surface of the left half and the right half of the substrate facing the through hole, Has a projection having a neck portion having a length and diameter substantially the same as the thickness of the mat and the diameter of the through-hole at a portion where the mat is formed, and a head having a slightly larger diameter than the through-hole. 75
It is molded from synthetic rubber at an angle of from 85 ° to 85 °, preferably approximately 80 °. Here, the heads of the protrusions formed on the substrate protrude from the upper surface of the walking mat during connection and touch bare feet. Therefore, the shape of the head is substantially the same as the shape of the projection formed on the walking mat. In this way, the protrusions for stimulating the acupoints on the soles of the feet can be arranged including the connecting portions. When the walking mat has two types of projections, a small projection and a large projection, the shape of the small projection may be substantially the same as that of the large projection. It is sufficient that at least one projection of the connection hook is provided on both the left half and the right half of the substrate. Two or more protrusions may be formed on both the left half and the right half to further increase the strength. In this case, the same number of protrusions as the number of protrusions is provided on the upper surface portion facing each groove of the walking mat. Is formed in advance. In a state where the walking mats are connected with the connecting hooks, the protrusions on the connecting hooks projecting from the upper surface of the walking mat and the intervals between the protrusions and the protrusions formed on the walking mat are formed on the walking mat. By forming the through-hole at a position substantially equal to the interval between the projections, the projections that stimulate the acupoints on the soles of the feet can be arranged at substantially equal intervals over the entire laying surface of the walking mat.

[0016]

The left half of the substrate of the connecting hook is applied to the groove formed on the lower peripheral edge of the walking mat, and the projection is pushed into the through hole until the head of the projection on the substrate projects to the upper surface of the mat. The hook and the walking mat are firmly connected, and the head of the projection protruding from the upper surface of the mat acts as a projection for stimulating the acupoint on the sole of the foot, like other projections on the mat. When the right half of the board of the connecting hook is connected to another walking mat in the same manner, 2
The two walking mats are firmly connected via the connecting hooks. Hereinafter, by connecting the walking mats one after another, the walking mat can be laid in the entire underwater walking area of the swimming pool. Since this connection can be easily performed underwater as well as on the ground, assembly on site is easy. Also,
When one of the walking mats connected to each other by the connecting hooks is pressed down with a foot and the other walking mat is lifted, the head of the projection of the connecting hook comes out of the through hole, so that it can be easily separated. Since this operation can be easily performed in water, the disassembling operation is also easy.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an external perspective view of an embodiment of a set of a walking mat and a connecting hook according to the present invention.
0 is a walking mat and 20 is a connecting hook.

The walking mat 10 has a thickness of 10
It is a square mat of about 50 mm in length and about 50 cm in length and width, and has a specific gravity of 1 or more for use by sinking into the bottom of the swimming pool. The walking mat 10 is formed of, for example, synthetic rubber having a hardness of about 40 °.

Two grooves 11 are formed in the periphery of the lower surface of each side of the walking mat 10. The shape of each groove 11 is the same, the depth is about 5 mm, the width is about 130 mm, and the depth is about 50 mm. Therefore, the thickness of the mat where the groove 11 is formed is about 5 mm. In the portion of the upper surface facing the groove 11,
Two pairs of through holes 12 reaching the groove are formed. The diameter of the through hole 12 is about 14 mm, and
The distance between the two through holes 12 is around 90 mm, and the distance from the edge of the mat to the center of the through hole 12 is around 30 mm.

On the upper surface of the walking mat 10, projections 13, 14 for stimulating the acupoints on the soles of the underwater walking person are formed at equal intervals over the entire surface (some projections are shown in FIG. 1). Is omitted). The distance between the left, right, front and rear projections is about 45 mm. The protrusion 13 is larger than the protrusion 14 and has a shape and size as if a hemisphere having a diameter of about 25 mm was turned down. Therefore, its height is 1
It is around 2 mm. On the other hand, the small projection 14 has a diameter of 16 m.
It has a shape and size as if a hemisphere of about m was turned down. Therefore, its height is around 8 mm. The large projections 13 and the small projections 14 are formed alternately. The large protrusion 13 presses the acupoint on the sole of the underwater walking person relatively strongly, and the small protrusion 14 presses relatively weakly, so that the massage effect can be enhanced.

On the other hand, the connecting hook 20 has a thickness of approximately 5 mm, which is approximately the same as the depth of the groove 11 of the walking mat 10, a vertical width of approximately 130 mm, which is approximately the same as the width of the groove 11, and a width of approximately 11 mm.
Square substrate 21 of about 100 mm twice the depth of
And two projections 22 and 23 formed on the left and right sides of the upper surface of the substrate 21, respectively, and are formed of, for example, synthetic rubber having a hardness of about 80 °.

The projections 22 and 23 are composed of a neck 24 and a head 25. The diameter of the neck 24 is approximately 14 mm, which is substantially the same as the diameter of the through hole 12 of the walking mat 10, and the length of the groove 11 is It is about 5 mm, which is almost the same as the thickness of the mat at the formed portion. The head 25 has substantially the same shape as the small projection 14 formed on the walking mat. In other words, it has a shape and size as if a hemisphere with a diameter of about 16 mm was turned down. Therefore, the neck 2 is located on the lower surface of the head 25.
4 and a step of about 1 mm are formed.

The two projections 22 on the left and the two projections 23 on the right are formed at symmetrical positions on the substrate 21. That is, when the left half of the substrate 21 is inserted into the groove 11 of the walking mat 10, the two left protrusions 22 are located at positions opposed to the through holes 12 in the groove 11, and The protrusion 23 is located at a position facing the through hole 12 in the groove 11 when the right half of the substrate 21 is inserted into the groove 11 of the walking mat 10.

When a large number of walking mats 10 according to the present embodiment are connected and installed on the bottom of a swimming pool, two grooves existing on the side to which another mat is desired to be connected among the four sides of the walking mat 10 are provided. The connecting hooks 20 are respectively attached to the reference numerals 11. The attachment can be easily performed by applying the left half of the substrate 21 of the connection hook 20 to the groove 11 and pushing the projection 22 into the through hole 12 until the projection 22 on the substrate 21 projects to the upper surface of the mat. Next, the right halves of the two connection hooks 20 attached are connected to another walking mat 10. At this time, the right half of the substrate 21 of the connecting hook 20 is applied to the groove 11 and
This can be easily performed by pushing the projections 23 into the through holes 11 until the upper projections 23 project to the upper surface of the mat. Hereinafter, in the same manner, the walking mat 10 is successively connected to the connecting hook 2.
By using 0 to connect, the walking mat 10 is laid on the entire underwater walking area of the swimming pool.

Since the walking mat 10 according to the present embodiment has a length and width of about 500 mm, in the case of a 25 m pool, if 50 walking mats 10 are connected in a row, an underwater walking area of 500 mm width and 25 m length is provided. Can be laid. Since the walking mat 10 according to the present embodiment is provided with the connecting hook connecting groove 11 and the through hole 12 on all four sides thereof, the walking mat 10 can be connected in any of the left, right, front and rear directions. Therefore, if 50 walking mats 10 are connected in a line and two mats are connected in the width direction, an underwater walking area having a width of 1 m and a length of 25 m can be laid. Since the walking mat 10 according to the present embodiment does not have the connection unevenness 103 as shown in FIG. 6 on the side surface, it is also advantageous that it can be laid without gaps on the side wall of the swimming pool.

The groove 11 to which no other mat is connected is
There is no problem if it is left as it is, but the connecting hook 21
May be connected to the unconnected groove 11 of the walking mat 10 as shown in FIG. In this way, it is possible to dispose protrusions for stimulating acupoints on the soles of the feet on the entire area of the upper surface of the walking mat 10.
Also, the laid walking mat 10 does not shift even if a slight force is applied in the direction in which many mats are connected, but in the direction perpendicular to the connection direction, the number of mats is one or several and is small. , A little weak to the lateral shift. Therefore, the lower surface of the connecting hook piece 30 has a hardness of 5 ° to prevent lateral displacement.
The front and rear synthetic rubbers may be attached.

In the above embodiment, the walking mat 10 has a rectangular shape, but may have a triangular or hexagonal shape. Also, the shape of the groove 11 can be any shape other than the square shape, and
1 can have any shape as long as it can be stored in the groove 11.

Further, the grooves 11 and the through holes 12 for connecting the hooks are provided on each of the four sides of the walking mat 10, but they may be provided only on three sides or only on two opposite sides. Good, or may be provided only on one side. Further, two sets of connecting hook connecting grooves 11 and through holes 12 are provided per side of the walking mat 10, but only one set or three or more sets may be provided.

Still further, one connecting hook connecting groove 1 is provided.
Although two through holes 12 are provided in one, only one through hole 12 or three or more through holes 12 may be provided. Also, the connecting hook 20
The shapes of the heads 25 of the projections 22 and 23 are substantially the same as the small projections 14 on the walking mat 10, but may be substantially the same size as the large projections 13. A synthetic rubber having a small hardness for preventing lateral displacement may be attached not only to the connecting hook pieces 30 but also to the connecting hooks 20 and the lower surface of the walking mat 10.

[0031]

3A and 3B show a top view and a side view of one embodiment of the walking mat 10. FIG. The material of the walking mat 10 of this example is EPDM hardness 40 °.
And the measurement value of the specific gravity was 1.21. The dimensions of each part are added in the figure. The unit is mm. EPDM is a copolymer of ethylene and propylene, and has weather resistance, heat resistance, ozone resistance,
It is a kind of synthetic rubber with excellent aging resistance and electrical properties, and also conforms to the Food Sanitation Law.

The thickness of the walking mat 10 is 10 m.
m, the vertical and horizontal size is 500 mm, and has a square shape when viewed from above. Two grooves 11 having a depth of 4 mm, a width of 126.8 mm, and a depth of 50 mm are formed in the peripheral edge of the lower surface of each side of the walking mat 10.
Two through holes 12 each having a diameter of 14 mm are formed in the upper part of 1. On the upper surface of the mat 10, projections 13 and 14 are alternately arranged in 11 rows and 11 rows, and the pitch between the left, right, front and rear projections is 43.6 mm. However, a part where a small projection should be formed is replaced with the through hole 12. The large projection 13 is a hemisphere having a diameter of 24 mm, and the small projection 14 is a hemisphere having a diameter of 16 mm. Outermost projections 13 and 14 and through hole 1
The distance between the center line 2 and the edge of the mat 10 is 32 mm, and even when the mats 10 are connected to each other, the protrusions 13 and 14 are provided.
Are designed to be continuously constant.
In the walking mat 10 of the present embodiment, the edge of the upper surface is corner-processed to 4R over the entire circumference in order to reduce the influence of the water flow.

FIGS. 4A and 4B show a top view and a side view of one embodiment of the connecting hook 20. FIG. The material of the connecting hook 20 in this example was formed by integral molding with an EPDM hardness of 80 °, and the measured value of the specific gravity was 1.45. The dimensions of each part are added in the figure. The unit is mm.

The board 21 of the connecting hook 20 has a thickness of 4 m.
m, the width is 126.8 mm, and the length is 100 mm. When mats 10 are connected to each other, grooves 1 of both mats 10 are formed.
1 is completely accommodated. The protrusions 22 and 23 formed on the substrate 21 include a neck portion 24 and a head portion 25. The diameter of the neck portion 24 is 14 mm, which is the same as the diameter of the through hole 12, and the length is a portion where the groove 11 is formed. 6 mm which is the same as the thickness of the mat. The head 25 has the same shape as the small projections 14 formed on the mat 10 and is a hemisphere with a diameter of 16 mm. Therefore, the lower part of the head 25 has a step of 1 mm from the neck 24.

FIG. 5A shows a state in which the connecting hook 20 is connected to the walking mat 10 in FIG.
FIG. 4 shows a cross-sectional view along the line A-A ′. In such a connected state, the lower surfaces of the walking mat 10 and the connecting hook 20 are flush with each other. FIG. 5B is a longitudinal sectional view of the projections 22 and 23 provided on the substrate 21 of the connecting hook 20.
A corner is provided at the joint between the head 25 and the neck 24 to facilitate removal from zero.

In this embodiment, the walking mat 10
Although the connecting hook 20 is formed of EPDM, it may be formed of another kind of synthetic rubber, for example, SBR (styrene / butadiene rubber), JR (isoprene rubber), CR (chloroprene rubber), or the like. In the above description, the walking mat and the connecting hook of the present invention are used for underwater walking. However, the walking mat and the connecting hook may be used as a land-based walking mat, such as being laid on a poolside.

[0037]

As described above, according to the present invention, the following effects can be obtained.

The walking mats can be firmly connected to each other. The reason is that the connection between the walking mat and the connecting hook can be made stronger than the connecting structure shown in FIG. 6 by inserting the projection of the connecting hook into the through hole of the mat, and the walking mats are connected to each other. This is because the connection is made via the connection hook that is firmly connected. In particular, when the thickness of the mat is as thin as about 10 mm, the connection structure shown in FIG.
In the present invention, a practically sufficient connection strength can be obtained.

The construction on site is easy. The reason is,
This is because the operation of inserting the projection of the connecting hook into the through hole of the mat and the operation of pulling out the conversely can be easily performed underwater.

The projections for stimulating the acupoints on the soles of the feet can be arranged over substantially the entire area of the laying surface including the connection portion. The reason is that the shape of the head of the projection formed on the connection hook is substantially the same as the shape of the projection formed on the walking mat, and it can also act as a connection member and at the same time, stimulate the acupoint on the sole of the foot. Because it works.

The protrusions for stimulating the acupoints on the soles of the feet can be arranged at substantially equal intervals over the entire laying surface. The reason is that when the walking mats are connected by the connecting hooks, the protrusions on the connecting hooks protruding from the upper surface of the walking mat and the distance between the protrusions and the protrusions formed on the walking mat are determined by the walking mat. This is because the through-hole is formed at a position substantially equal to the interval between the protrusions formed in the above.

[Brief description of the drawings]

FIG. 1 is an external perspective view of an embodiment of a set of a walking mat and a connecting hook according to the present invention.

FIG. 2 is an external perspective view of a connecting hook piece formed by cutting a connecting hook into two right and left parts.

FIG. 3 is a top view and a side view of an embodiment of the walking mat of the present invention.

FIG. 4 is a top view and a side view of an embodiment of the connecting hook of the present invention.

FIG. 5 is a cross-sectional view taken along the line AA ′ of FIG. 3A in a state where a connecting hook is connected to the walking mat of the present invention.

FIG. 6 is an external perspective view of a conventional buffer mat.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Walking mat 11 ... Groove 12 ... Through-hole 13 ... Large projection 14 ... Small projection 20 ... Connection hook 21 ... Board 22, 23 ... Projection 24 ... Neck 25 ... Head 30 ... Connection hook piece

Continuing on the front page (72) Inventor Tsuneo Otsuka 2-192-2 Sasazuka, Shibuya-ku, Tokyo Sanwa Co., Ltd. (72) Inventor Hiroshi Nagata 1-6-6-1 Kanda Jimbocho, Chiyoda-ku, Tokyo Management of Japanese sports facilities (72) Inventor Kiyoaki Yonera 1-6-1, Kanda Jimbocho, Chiyoda-ku, Tokyo Japan Physical Education Facility Management Co., Ltd. Facility Management Co., Ltd.

Claims (11)

[Claims] A walking mat having a plurality of projections and through holes formed on an upper surface thereof and having a specific gravity of 1 or more;
A set of connecting hooks for connecting the walking mats, wherein the connecting hooks have a plurality of protrusions inserted into the through holes of each of the two walking mats connected to each other; A set of a walking mat and a connection hook, wherein a head of a projection protruding from an upper surface of the walking mat has a shape substantially the same as a projection formed on the walking mat. 2. A groove is formed at a peripheral edge of the lower surface, a through hole reaching the groove is formed at a portion of the upper surface facing the groove, and a projection is formed on substantially the entire upper surface except the through hole.
A set of a walking mat having a specific gravity of 1 or more and a connecting hook for connecting the walking mats to each other, wherein the connecting hook is formed to have substantially the same thickness as the depth of the groove, and a left half is formed. A substrate which is inserted into the groove of one mat connected to each other and whose right half is inserted into the groove of the other mat connected to each other, and a portion opposed to the through hole on the upper surface of the left half and the right half of the substrate. Formed, having a projection having a neck portion having a length and diameter substantially the same as the thickness of the mat and the diameter of the through-hole at the portion where the groove is formed, and a head slightly larger in diameter than the through-hole, and,
A set of a walking mat and a connection hook, wherein a shape of a head of a projection formed on the connection hook is substantially the same as a shape of a projection formed on the walking mat. 3. The upper surface of the walking mat,
Two types of projections, small projections and large projections wider and higher than the small projections, are formed alternately at equal intervals,
3. A set of a walking mat and a connection hook according to claim 1, wherein the shape of the head of the projection formed on the connection hook is substantially the same as the shape of the small projection. 4. An upper surface of the walking mat,
Two types of projections, small projections and large projections wider and higher than the small projections, are formed alternately at equal intervals,
3. A set of a walking mat and a connection hook according to claim 1, wherein the shape of the head of the projection formed on the connection hook is substantially the same as the shape of the large projection. 5. When the walking mats are connected to each other by the connecting hooks, the protrusions on the connecting hooks projecting from the upper surface of the walking mat and the protrusions and the protrusions formed on the walking mat. The set of the walking mat and the connecting hook according to claim 3 or 4, wherein the through-hole is formed at a position where the interval is substantially the same as the interval between the protrusions formed on the walking mat. 6. The walking mat has a hardness of about 4.
The molding hook is formed of synthetic rubber having a hardness of about 80 °, and the connecting hook is formed of synthetic rubber having a hardness of about 80 °.
A set of the walking mat and the connecting hook according to 4 or 5. 7. A groove is formed in a peripheral portion of the lower surface, a through hole reaching the groove is formed in a portion of the upper surface facing the groove, and a projection is formed on substantially the entire upper surface excluding the through hole.
A walking mat having a specific gravity of 1 or more. 8. The walking mat according to claim 7, wherein two types of projections, small projections and large projections wider and higher than the small projections, are alternately formed on the upper surface. . 9. The walking mat according to claim 7, wherein the walking mat is formed of a synthetic rubber having a hardness of about 40 °. 10. A groove is formed in a peripheral edge of a lower surface, a through hole reaching the groove is formed in a portion of the upper surface facing the groove, and a projection is formed on substantially the entire upper surface excluding the through hole.
A connecting hook for connecting the walking mats having a specific gravity of 1 or more, the hook being formed to have substantially the same thickness as the depth of the groove, and the left half being inserted into the groove of one of the mats to be connected to the right half. Is formed in a portion of the upper surface of the left half and the right half of the substrate facing the through-hole, and a thickness of the mat in a portion where the groove is formed. And a projection having a neck having a length and diameter substantially the same as the diameter of the through hole and a head having a diameter slightly larger than the through hole, and the head of the projection formed on the substrate is A connecting hook that has substantially the same shape as a projection formed on the walking mat. 11. The connecting hook according to claim 10, wherein the connecting hook is formed of synthetic rubber having a hardness of about 80 °.