JP4362854B2 - Artificial lawn with filling - Google Patents

Description

The present invention relates to an artificial lawn having sand and other fillers between pile yarns planted on a base fabric.

In the arena space of the athletic stadium, an artificial lawn with a filler having features such as easy maintenance and management of the stadium, stability of the ground condition, and excellent water permeability is used. As shown in FIG. 5, the artificial lawn 1 is generally obtained by planting a large number of synthetic resin pile yarns 3 (leaf pieces) on a backing base fabric 2. In the athletic field where baseball, soccer, tennis, and other sports are performed especially on the flocking part 4, shock absorption, suppleness, good bounding force, etc. are provided to greatly reduce the burden on the athlete's legs. In many cases, an artificial lawn 1 having a filler 5 in which a filler 5 such as sand or rubber chips is filled between pile yarns 3 is provided.

Normally, when laying an artificial lawn, a roll-shaped base cloth having a width of about 3.6 m to 4 m is extended, and the base cloth at the end of each artificial lawn is sewn to match the athletic field. After making the lawn and adhering the periphery of the artificial lawn to the floor, sand the filler (silica sand), brushing the pile yarn that fell due to the dispersion of the sand with a brush, and sand between the pile yarn In addition, repeatedly piling the rubber thread, etc. from the sand, raising the pile yarn with a brush, filling the pile with a pile up to a predetermined height, and exercising the artificial lawn with the filler Laid on the ground.

  JP-A-5-156602 discloses an artificial lawn in which a plurality of artificial grasses formed in a long shape used for tennis courts, soccer fields, rugby fields, gateball fields, etc. are connected and laid and filled with sand. In the laid artificial lawn, the frequently used part and the low part are composed of turf blocks, joint tape material is laid on the back of the turf block, adjacent turf blocks are connected, and the artificial lawn is hardened. Or, when wear becomes noticeable, the joint tape material connecting between adjacent turf blocks is cut using a cutter, etc., and the sandbox is used to change the position of the turf blocks that are frequently used and those that are less frequently used. An artificial lawn construction method is disclosed.

  In addition, since the filled material tends to flow out from the peripheral edge of the artificial lawn, a structure for blocking outflow of the filled material is required in the peripheral part of the artificial grass. For this reason, in the prior art, a portion for laying an artificial lawn is formed in a concave shape, an artificial lawn having a filler is laid in the recess, and the outflow of the filler is blocked by the sidewall of the recess, as shown in FIG. As described above, a block-shaped projecting portion 6 is provided around the artificial lawn 1 to block outflow of the filler with the projecting portion 6.

In JP-A-8-3914, there is a rectangular parallelepiped block shape made of a urethane binder having water permeability in the periphery of the artificial lawn and having a height equal to or higher than the height of the filling filled in the artificial lawn. An invention in which a paving material is arranged as a sand stopper is disclosed.
JP-A-5-156602 JP-A-8-3914

However, as shown in FIG. 6, in the arena space of facilities that are premised on multipurpose use such as concerts and various exhibitions as well as athletics, manhole A for water supply and drainage, for underground storage Many have equipment such as hatch B, power supply hatch, movable equipment rail storage hatch C, and movable seat rail hatch D around the competition ground, so that these equipment can be used for special events. It was necessary to remove the artificial lawn and restore the artificial lawn again after the event.

For this reason, considering the burden on the legs of athletes, it is appropriate to lay artificial grass with filling in the arena space of the athletic stadium. There was a tendency to use artificial lawns without filling that could be easily repaired. In other words, in the case of an artificial lawn with a filling, in accordance with the event, remove the filling from the artificial lawn in the arena space and remove the artificial lawn, then lay the artificial lawn again and refill the filling. There was a problem that it had to be done and it took a lot of time and money.

Even when part of the artificial lawn with a filling material is removed, when some artificial lawns are removed, the filling material flows out from the edge of the artificial lawn and scatters around. There is a problem that the object must be removed by sweeping an object with a broom or sucking with a vacuum cleaner, and it takes about 1 hour even for 1 square meter.

  When a part of the artificial lawn having a filling is removed or repaired, the filling flows out from the end of the artificial lawn at an inclination angle of about 45 °. Even with the removal of a typical artificial lawn, there was a problem that it would cost repair.

  In addition, when refilling the filling that has flowed out in large quantities, the packing is at the same level as the surrounding packing density so that the impact absorption of the artificial lawn is not impaired and irregularity of the bounce of the ball does not occur. There is also a problem that it takes a long time to refill and requires a technique for refilling.

Even in the above-described invention using a turf block in a frequently used part, the problem that the filler flows out from the end of the artificial lawn when the turf block is replaced has not been solved. In addition, instead of the joint tape cut with a cutter, it is necessary to lay a new joint tape material again to connect the turf block, and it is difficult to remove or repair the artificial lawn with filler. The problem of being was not solved.

  In addition, if a concrete block is placed on the ground around the artificial lawn to prevent the filler from flowing out from the peripheral edge of the artificial lawn, the athlete may hit the hard concrete block and be injured. There was a problem in terms of sex.

  Even when the rectangular parallelepiped block made of the urethane binder is disposed as a sand stopper around the artificial lawn, the rectangular parallelepiped block is formed to be equal to or higher than the height of the filler filled in the artificial lawn. Therefore, there is a risk that the athlete may hit the rectangular parallelepiped block, which is problematic in terms of safety. Artificial lawns laid in a wide arena space need to be loaded with vehicles for maintenance or transportation, but a rectangular solid block made of urethane binder does not have a load resistance against the passage of heavy objects and large vehicles. There was also a problem.

  Also, in facilities that are premised on multipurpose use, in order to use facilities such as manholes for water supply and drainage, rails for movable devices, etc. in conjunction with special events, the peripheral parts of artificial lawns are removed along with the removal or restoration of artificial lawns. It was also necessary to partially remove or repair some of the protrusions and the like disposed on the surface.

  Therefore, the present invention was created in view of the various circumstances of the description, and it is a technical problem to remove or repair an artificial lawn having a filling by preventing the outflow of the filling, so that the multipurpose use of the facility Accordingly, it is an object of the present invention to provide an artificial lawn having a filler that can be removed or repaired easily and quickly without impairing the safety performance and the exercise performance of the artificial lawn having the filler.

  Of the present invention that solves the above technical problem, the means of the invention according to claim 1 is characterized in that a flocking portion in which a pile yarn is flocked is provided on a base fabric, and sand, sand, rubber chips, rubber chips, etc. are provided between the pile yarns. It is an artificial lawn having a filling, and the artificial lawn composed of a square tube member and a hard elastic material covering member covering the surface of the square tube member is filled on the floor surface around the artificial lawn. An end treatment member having a height lower than the average height of the filler is fixed.

  In the first aspect of the invention, the end treatment material having a height lower than the average height of the filler filled in the artificial lawn is fixed on the floor surface around the artificial lawn. And since the filler such as rubber chips and rubber chips are dammed by the edge treatment material and do not flow out from the peripheral end of the artificial lawn, the optimal filling state of the filler is maintained, the impact absorption of the artificial lawn, the flexibility, Maintains good exercise performance such as ball bounce.

  The edge treatment material provided on the periphery of the artificial lawn is covered with a hard elastic coating member on the surface of the square tube member, so there is less impact when an athlete hits or crawls the edge treatment material. And keeps safety. Moreover, since the height of the end treatment material is lower than the average height of the filling material filled in the artificial lawn, it is difficult for athletes or the like to hit the end treatment material.

  Further, since the end treatment material is lower than the average height of the filling material filled in the artificial lawn, it is easy to get on the artificial lawn laid with a vehicle for maintenance or transportation.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, a projecting square tube in which a square tube member is projected from the covering member at least at one end portion of one end treatment material joined to each other. Provided with a portion, and at least one end portion of the other end treatment material is covered with a protruding covering portion projecting the covering member rather than the square tube member, covering the protruding square tube portion of the joined one end treatment material. It is in having established.

  In the invention according to claim 2, by providing the projecting square tube portion and the projecting covering portion which are combined with each other and releasing this combination, a part of the end treatment material can be easily removed. For this reason, in facilities premised on multipurpose use, equipment for water supply and drainage, power supply hatches, rails for movable devices, etc. are used. Can also be partially removed or repaired.

The means of the invention described in claim 3 is that, in addition to the configuration of the invention described in claim 1 or 2, a fixed plate for fixing is protruded from the end treatment material.

In the invention according to claim 3, by fixing anchor bolts or the like for fixing to the fixed plate and laying an artificial lawn on the fixed plate, the fixed portion is not exposed to the outside, and The end treatment material can be fixed on the floor of the peripheral portion of the artificial lawn with good appearance without obstructing traffic of vehicles and vehicles.

  According to a fourth aspect of the present invention, in addition to the configuration of the first or second aspect of the invention, a fixing bolt for fixing the end treatment material to the floor surface is provided inside the square tube member. .

  In the invention according to claim 4, since the fixing bolt is provided inside the square tube member, even if the construction site is narrow without exposing the fixing anchor bolt or the like to the outside, a person, a vehicle, etc. The end treatment material can be fixed to the floor surface with good appearance without obstructing the passage of the.

  In addition to the structure of the invention described in claim 1, 2, 3 or 4, the means of the invention described in claim 5 is a strength for improving the mechanical strength of the end treatment material on the whole or part of the inside of the square tube member. The improvement material is filled.

  In the invention according to claim 5, the inside of the square tube member is filled with a strength improving material, and the mechanical strength of the end treatment material is improved in whole or in part, for the transportation of luggage and the like. The load resistance of the edge treatment material against heavy objects, large vehicles, etc. that get over the edge treatment material and enter the artificial lawn is ensured.

Since the present invention has the above-described configuration, the following effects can be obtained.
In the invention of claim 1, the end treatment member having a height lower than the average height of the filling material filled in the artificial lawn, comprising a square tube member and a hard elastic material covering member, Since it was fixed on the floor surface around the artificial lawn, the outflow of the filler filled in the artificial lawn with the end treatment material was blocked to maintain the optimal filling state, and the artificial lawn with the filling was good. The exercise performance can be maintained, and the durability of the artificial lawn having the filler can be increased.

  Since the end treatment material is a hard square tube member covered with a hard elastic covering member, safety is ensured by reducing impact when an athlete hits or bumps. Since the height of the end treatment material is set lower than the average height of the filler filled in the artificial lawn, it is difficult for athletes or the like to go to the end treatment material, and safety is ensured.

  In addition, because the height of the edge treatment material was set lower than the average height of the filling material filled in the artificial lawn, it was easy for maintenance and transportation vehicles to get over the edge treatment material and was installed at a low position. The end treatment material can be fixed on the floor of the peripheral part of the artificial lawn having a filling without hindering the use of existing facilities.

  In the invention according to claim 2, a projecting square tube portion and a projecting coating portion that are combined with each other are provided, and a part of the end treatment material is partially formed by a combination of the projecting square tube portion and the projecting coating portion. It can be easily removed. For this reason, in facilities premised on multi-purpose use, in order to use existing facilities in accordance with special events, partial removal or repair work of edge treatment materials can be simplified with the removal or repair of partial artificial lawns. And construction can be done quickly.

  In the invention according to claim 3, since the fixed plate is fixed with an anchor bolt or the like, the end treatment material is not exposed to the outside by laying an artificial lawn on the fixed plate. It can be fixed to the floor, and the edge treatment material does not interfere with athletics or vehicle traffic.

  In the invention of claim 4, since the anchor bolt is provided inside the square tube member, the construction place is not exposed to the outside, and does not obstruct the passage of people, vehicles, etc. Even in a narrow case, the end treatment material can be fixed to the floor surface with good appearance.

  In the invention according to claim 5, the square tube member of the end treatment material is entirely or partially filled with the strength improving material, and the mechanical strength of the end treatment material is improved, and the end portion Ensure load resistance against heavy objects, large vehicles, etc. that pass over treatment materials.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a longitudinal sectional view for explaining the structure of an artificial lawn 1 according to an embodiment of the present invention.

  As shown in FIG. 1, the artificial lawn 1 has a flocked portion 4 in which a pile yarn 3 is planted on a base fabric 2, and sand, sand, rubber chips, rubber chips or the like are interposed between the pile yarns 3 of the flocked portion 4. Filling material 5 is filled.

  An end treatment material 7 lower than the average height of the filling 5 filled between the pile yarns 3 is fixed on the floor surface around the artificial lawn 1.

  As shown in FIG. 2, the end treatment material 7 includes a steel tube square tube member 8 whose bottom surface is set on the floor surface, and a hard rubber coating member 9 that covers the surface of the square tube member 8. ing. The end treatment material 7 is provided with a fixed plate 10 projecting horizontally from the bottom surface of the square tube member 8, and anchor bolts 11 are driven into the fixed plate 10 to stabilize the end treatment material 7 on the floor surface. Is fixed.

  Then, the artificial lawn 1 is laid on the fixed plate 10 inside the end treatment material 7, and the filler 5 is filled between the pile yarns 3 of the flocked part 4 of the artificial lawn 1. The peripheral edge of the artificial lawn 1 is filled with the filler 5 to a height that is lower than the average height of the filler 5 and about the same as the height of the edge treatment material 7.

  The filling 5 filled in the artificial lawn 1 is blocked by the end treatment material 7 and does not flow out to the surroundings, and maintains a good filling density in the artificial lawn 1 and the movement of the artificial lawn 1 having the filling 5 Maintain performance and safety performance.

  In the central part of the artificial lawn 1, the filler 5 is filled so that the average height of the filler 5 is higher than the peripheral end of the artificial lawn 1, but the pile yarn 3 prevents movement of the filler 5. Therefore, the filling material 5 does not move greatly inside the artificial lawn 1 and the filling material 5 does not flow out beyond the end treatment material 7, and the outflow of the filling material 5 is effectively performed by the end treatment material 7. Is prevented.

  Since the end treatment material 7 covers the square tube member 8 made of steel pipe with the covering member 9 made of hard rubber, an athlete or the like hits the end treatment material 7 or crawls it. However, there is little impact and it is safe. Moreover, since the height of the edge treatment material 7 is set lower than the average height of the filling 5 filled in the artificial lawn 1, it is difficult for an athlete to hit the edge treatment material 7.

  If the height of the edge treatment material 7 is set lower than the average filling height of the filling 5 filled in the artificial lawn 1, the edge treatment material 7 does not hinder the passage of people, vehicles, etc. And transport vehicles are easy to get on the laid artificial grass.

  Since the height of the end treatment material 7 is set lower than the filling height of the filling 5 filled in the artificial lawn 1, as shown in FIG. Even if there is an existing facility, the end treatment material 7 can be fixed to the floor so as not to hinder the use of the existing facility.

  Also, in facilities that are premised on multi-purpose use, the existing equipment such as rails for movable seats and rails for movable devices is used. It is necessary to remove or repair the treatment material 7 partially.

  FIG. 3 is a side view for explaining the structure of the end treatment material 7 that allows part of the material to be removed. A protruding covering portion 9a in which the covering member 9 is protruded from the square tube member 8 is provided at the end portion of a part of the end processing member 7 ′ that is partially removed, and the end adjacent to the end processing member 7 ′. A protruding square tube portion 8 a in which the square tube member 8 protrudes from the covering member 9 is provided at the end of the partial treatment material 7.

  As shown in FIG. 3 (a), by releasing the combination of the projecting square tube portion 8a and the projecting covering portion 9a, a part of the end treatment material 7 ′ can be easily and partially removed. It is possible to efficiently use existing facilities of facilities that are assumed to be used. Further, as shown in FIG. 3 (b), the projecting rectangular tube portion 7a is covered with the projecting covering portion 8a and combined with each other to easily repair a part of the removed end treatment material 7 '. Can do. The covering member 9 is fixed to the surface of the square tube member 8 with a rivet or the like.

  FIG. 4 shows another embodiment of the present invention, in which an anchor bolt 11 for fixing is provided inside the square tube member 8, and the end treatment material 7 is fixed to the ground. The end treatment material 7 may be fixed to the floor surface using a fixed plate 10 according to the situation of the construction site and the installation space, and the interior of the square tube member 8 is directly fixed to the floor surface with the anchor bolt 11. It may be fixed to.

  The inside of the square tube member 8 is partially or entirely filled with a strength improving material such as mortar, and the end treatment material 7 is utilized by utilizing the characteristics of the mortar such as high strength, no shrinkage, and fluidity. Improves mechanical strength. Depending on the purpose of use of the equipment, the end treatment material 7 is loaded with heavy objects, large vehicles, etc., so that the mechanical strength of the end treatment material 7 of the portion through which the large vehicle etc. passes is improved. The load resistance of the end treatment material 7 for a large vehicle or the like is ensured.

In addition to filling the inside of the square tube member 8 with a strength-improving material, the square tube member 8 itself is formed using a solid steel material or the like, and by improving the mechanical strength of the square tube member 8 itself, You may ensure the load resistance of the edge part processing material 7 with respect to the large vehicle etc. which pass.
In the present invention, by binding water around the artificial lawn to be removed or repaired, the connectivity of the filler such as sand, sand and rubber chips, rubber chips filled between pile yarns of the artificial lawn Is increased by moisture, and the collapse of the filler at the end of the artificial lawn can be prevented as much as possible.

The longitudinal cross-sectional view which shows the Example of this invention and demonstrates the structure of the peripheral part of an artificial lawn. (A) The top view of an edge part processing material, (b) The longitudinal cross-sectional view of an edge part processing material. (A) The side view of the state which removed a part of edge part processing material, (b) The side view of the state which restored a part of edge part processing material. The longitudinal cross-sectional view which shows the other Example of this invention and demonstrates the structure of the peripheral part of an artificial lawn. The longitudinal cross-sectional view which shows a prior art example and shows the structure of the peripheral part of an artificial lawn. A plan view of the facility assuming multipurpose use.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Artificial lawn 2; Base cloth 3; Pile thread 4; Flocked part 5; Filling part 13a; Zipper part 14; Spacer 15; Pull-out string 16; Peg 6 for fixing | fixed part 7; End treatment material 8 to be removed part; Square tube member 8a; Protruding square tube part 9; Cover member 9a; Protrusion cover 10; Fixed plate 11; Anchor bolt A; Manhole B for water supply and drainage; Rail storage hatch C 'for movable devices; Rail D for movable devices; Rail hatch E for movable seats; Suction port for air conditioning

Claims (4)

In an artificial lawn having a flocked portion in which pile yarn is planted on a base fabric, and having a filler of sand and / or rubber chips between the pile yarns, a square tube member is provided on the floor surface of the peripheral portion of the artificial lawn, An artificial material having a filling comprising an end treatment material having a height lower than the average height of the filling material filled in the artificial lawn, comprising a hard elastic material covering member covering the surface of the square tube member Lawn,
At least one end of one end processing material of the two end processing materials to be joined to each other is provided with a protruding square tube portion that protrudes the square tube member from the covering member, and at least one end of the other end processing material. An artificial lawn characterized in that a protruding covering portion is provided on the portion, which covers the protruding square tube portion of the one end treatment material, and has a covering member protruding from the square tube member. The artificial lawn having a filling according to claim 1 , wherein a fixed plate is provided on the end treatment material so that the end treatment material is fixed so as to be horizontal with the bottom surface of the square tube member.   The artificial lawn having a filler according to claim 1, wherein a fixing bolt for fixing the end treatment material to the floor surface is provided inside the square tube member. The artificial lawn having a filling according to claim 1, 2 or 3, wherein the whole or part of the inside of the square tube member is filled with a strength improving material for improving the mechanical strength of the square tube member.

Images