JPH07138907A - Framed body for artificial lawn and artificial lawn unit - Google Patents

Abstract

PURPOSE:To lay a lawn for a long period of time on a flat ground surface or on a floor surface, or on the ground surface having irregularities or on a step of a floor surface, while repeated load acting on an edge region or excessively large local load caused by tread pressure of pedestrians are born. CONSTITUTION:Framed bodies for artificial lawn 10, 30 define the outer edge region of an artificial lawn 100. The framed body has core portions 5, 25 which are adjacent to the outer edge of the artificial lawn and extend along the outer edge, and flat base portions 3, 7, 23, 27, 28 which extend inwardly from the core portions and form a mount surface of the artificial lawn. The core portions form an upper elevated part adjacent to a lawn-like member 102 disposed on the outer edge of the artificial lawn and the upper elevated part has a height lower than that of the lawn-like member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial turf frame and an artificial turf unit, and more particularly to an artificial turf frame that can be laid on the ground surface, floor surface, stairs or the like outdoors or indoors. And the artificial turf unit.

[0002]

2. Description of the Related Art Artificial turf having a large number of turf-like members formed or processed in the form of turf leaves and planted on a base cloth has been widely put into practical use. The applicant of the present application, in this kind of artificial grass,
Proposed is a structure in which a plurality of pile yarns having open free ends are planted in a braided base fabric, and the base region of the pile yarns is sprinkled or filled with a sediment binder.
─15842 publication). According to this configuration, durability,
It is possible to provide an artificial turf with improved walkability and water permeability. The applicant of the present application has also proposed an artificial grass having a structure in which a reinforcing base cloth is fixed to the back side of a braided base cloth in order to improve the strength or durability of the artificial grass, and further the walkability. -14
No. 0505). The applicant of the present application has further proposed a road structure having a structure in which a clay-sand layer or a sand-containing artificial grass layer is provided on a base cloth having a width of the road (Japanese Patent Laid-Open No. 1-280103).
Issue). This road structure has core portions arranged on both side edges, and the core portions act so as to prevent the outflow of sediment cinders or sand laid on the base cloth. Therefore, according to the road structure having such a configuration, it is possible to provide a road structure having excellent stability or weather resistance.

[0003]

However, the turf-like member of the artificial turf generally has a height of 20 to 35 mm, and is repeatedly pressed downward when a pedestrian passes or a cart or the like is pushed and tilted. To do. The turf-like member subjected to such a repeated load deteriorates and collapses due to aging, and it is difficult to maintain a desired standing state. The deteriorated state of such a grass-like member is
Remarkable in the edge area of artificial grass. Moreover, the place where the artificial grass is laid is not limited to a flat ground surface or floor surface, and the artificial grass should be laid on a stepped portion of the ground surface or floor surface having considerable undulations, for example, a tread such as a stair. In many cases, there is no choice but to avoid it. However, the conventional artificial turf is locally subjected to an excessive load due to a pedestrian's stepping on or the like, and in particular, the turf-like member at the edge portion is easily crushed. Particularly, when the artificial grass is laid on the stairs of the stairs, the outer edge area of the artificial grass located at the edge of the step portion yields. Therefore, the artificial turf according to the conventional structure cannot withstand long-term use in steps such as stairs. Therefore, realization of artificial turf that can be permanently installed in steps is desired. Further, the conventional artificial grass is manufactured in a relatively long strip shape, and when it is laid in a passage with a relatively large change in direction, it is forcibly bent at the direction changing part or partially. Cutting and reconnecting forces the artificial grass to turn along the aisle. Therefore, there is a demand for an artificial turf that enables such work to be omitted.

The present invention has been made in view of the above points, and an object of the present invention is to endure a repeated load acting on an edge region or an excessive local load due to a pedestrian's stepping pressure, and for a long period of time. And flat ground surface or floor surface, or
An object of the present invention is to provide an artificial grass frame and an artificial grass unit that can be laid on a stepped portion of an uneven ground surface or floor surface. The present invention also requires no special work steps such as bending or cutting,
An object of the present invention is to provide an artificial turf frame and an artificial turf unit that can turn the laying direction of the artificial turf to a desired direction.

[0005]

In order to achieve the above object, the present invention is an artificial turf frame defining an outer edge region of an artificial turf, wherein the frame is an outer edge of the artificial turf. Adjacent to and extending along the outer edge, and a flat base portion that extends inwardly from the core portion and forms a mounting surface of the artificial grass, the core portion of the artificial grass. An artificial turf frame characterized by forming an upper ridge adjacent to a turf-shaped member arranged on an outer edge, the upper ridge having a height lower than a height of the turf-shaped member. . According to the frame body having such a configuration,
The frame body defines an outer edge area of the artificial turf, and the core portion of the frame body forms an upper ridge adjacent to the grass-like member disposed in the outer edge area of the artificial grass and lower than the height of the grass-like member. To do. The core is
Excessive repetitive load or vertical load that can act on the edge region of the artificial grass is relaxed, tilting of the grass-like member to the outside is prevented, and the amount of deformation of the grass-like member is regulated. Therefore, the edge region of the artificial turf is unlikely to yield due to plastic deformation and maintains the restoring force to the standing position for a long period of time. Thus,
According to the artificial turf frame of the above structure, it is possible to provide the artificial turf frame that can withstand repeated local loads acting on the edge region or excessive local loads due to the pedestrian's stepping pressure. Moreover, the use of such a frame is extremely advantageous in permanently installing the artificial turf on the treads of the stairs or the like where the excessive load is likely to be locally applied by the pedestrian's treading pressure.

In one embodiment of the invention, the core has a substantially circular cross section and the base extends in a substantially horizontal plane passing through the centerline of the core. . Further, in another embodiment of the present invention, the core portion has a substantially circular cross section, and the base portion extends substantially horizontally in a tangential direction from a lower end portion of the core portion. In a preferred embodiment of the present invention, the core portion is annularly arranged so that the base portion is oriented radially inward, and has a circumferentially extending outer peripheral contour. In a related preferred embodiment of the present invention, the core portion forms a side edge of a frame body having a predetermined long-side length, and an end edge of the frame body has a curvature having a predetermined curvature. It has a recess. The frame body having the core portion of the annular arrangement and the frame body having the curved recessed portion are positioned so that the outer periphery of the former frame body and the curved recessed portion of the latter frame body are positioned adjacent to each other so that the angle can be changed. It can be articulated or interconnected.
Therefore, each of the above-mentioned frame bodies enables the work such as bending or cutting to be omitted when the laying direction of the artificial grass is turned to a desired direction. The present invention also includes the artificial turf frame and the artificial turf arranged on the mounting surface of the frame, and the outer edge of the artificial turf is
Provided is an artificial turf unit, which is adjacent to a core portion of the frame body and extends along the core portion.

The artificial turf unit having such a structure is used as an artificial turf that can be laid for a long period of time, and has a flat ground surface or floor surface.
Alternatively, it may be used on a step of a ground surface or a floor surface having undulations. Further, the artificial turf unit makes it possible to omit bending work or cutting work when the laying direction of the artificial turf is turned to a desired direction.

[0008]

The preferred embodiments of the artificial turf frame and the artificial turf unit according to the present invention will be described in detail below with reference to the accompanying drawings. 1 is a plan view showing a frame member of an artificial turf frame member according to a first embodiment of the present invention, and FIG. 2 is a plan view of a frame member made of the frame member shown in FIG. As shown in FIG. 1, the frame material 1 is substantially composed of a base cloth 3 cut into a predetermined width, and a core portion 5 arranged at a side edge portion of the base cloth 3 in the longitudinal direction. The base fabric 3 is, for example, a braided sheet made of polypropylene or polyethylene flat yarn,
It has flexibility and water permeability. The base cloth 3 forms a mounting surface for the artificial grass. The edge region of the base cloth 3 is wrapped around the outer periphery of the core portion 5 and folded back, and is fixed to the flat portion of the base cloth 3 by a locking means such as sewing, stapling, adhesion or welding. The core 5 covered with the base cloth 3 is made of a pipe-shaped, round bar-shaped, rope-shaped, or cord-shaped linear member, and the linear member preferably has rigidity and durability that can withstand a load generated by a pedestrian's stepping on. And a resin molded product having both flexibility and flexibility that allows the frame material 1 to bend or curve,
Alternatively, it is made of a metal member that is relatively easily deformable.
Preferably, the core portion 5 is designed to have a property and structure that can be elastically deformed by a compressive stress or a shear stress so that the core portion 5 can be easily restored to the initial shape with respect to the pedaling pressure of a pedestrian who repeatedly acts.

The frame body 10 shown in FIG. 2 (A) is formed of a frame material 1 which is arranged in a ring shape as a whole. Core 5
Is curved so as to orient the base fabric 3 inward in the radial direction, and extends over the entire circumference of the frame 10. The base cloth 3 is formed with a cut 13 having a predetermined angle, and the base cloth portions near the cut 13 overlap each other when the core 5 is bent, and the overlapped portion is sewn, stapled, bonded or bonded. By a fixing portion 12 such as welding, they are integrally connected to adjacent base cloth portions. Thus, the annular artificial grass frame 10 is formed, and the frame 10 includes the opening 4 formed in the central region, the substantially annular base cloth 3 forming the artificial grass mounting surface, and the frame. A core portion 5 arranged on the outer periphery of the body 10 to define the outer edge of the artificial grass.
With. The frame body 10 shown in FIG. 2B is formed by the frame members 1 arranged in a rectangular shape as a whole. The core portion 5 of the frame member 1 is bent so that the base fabric 3 is oriented inward,
It extends over the entire circumference of the frame 10. A notch 13 having a predetermined angle is formed in a corner area of the base cloth 3, and base cloth portions near the notch 13 overlap each other when the core 5 is bent, and the overlapped portion is sewn or stapled. It is integrally interconnected with the adjacent base fabric portion by a fixing portion 12 such as a stopper, an adhesive or a welding. The thus formed substantially rectangular frame 10 for artificial turf has an opening 4 formed in the central region, a substantially rectangular base cloth 3 forming a mounting surface of the artificial turf, and an outer periphery of the frame. And a core portion 5 which is arranged and defines an outer edge of the artificial grass.

The frame body 10 shown in FIG. 2C has a rectangular shape.
It is formed by the frame members 1 arranged on the sides, the core portion 5 of the frame member 1 is bent so that the base cloth 3 is oriented inward, and the corner area of the base cloth 3 is formed by the notch 13. They overlap each other and are integrally connected to each other by the fixing portion 12.
The open end of the frame member 1 is provided with an arcuate concave curved edge 6 complementary to the outer periphery of the frame body 10 shown in FIG. FIG. 3 is a plan view showing a modified example of the frame body shown in FIG. The frame body 10 shown in FIG. 3 is substantially composed of a base cloth 7 that is cut into a predetermined width and core portions 5 that are arranged on both edges of the base cloth 7. Base cloth 7
The edge regions on both sides of the are wrapped around the outer periphery of each core 5 and folded back, and are fixed to the flat portion of the base cloth 7 by locking means such as sewing, stapling, adhesion or welding. The thus formed substantially rectangular frame 10 for artificial turf is disposed on the outer periphery of the frame 10 and the substantially rectangular base cloth 7 that forms the mounting surface of the artificial turf, and the outer edges of both sides of the artificial turf are And a defining core portion 5. FIG. 4 is a plan view showing a shape pattern of the frame body shown in FIG. The frame 10 shown in FIG. 4 (A) has a substantially rectangular overall shape, and the open ends of the base cloth 7 are each cut along a cutting line perpendicular to the core 5. .

The frame body 10 shown in FIGS. 4B and 4C.
Also, it has core portions 5 on both sides extending in the long side direction over the same length. However, one or both open ends of the base fabric 3 are provided with arcuate concave curved edges 6 which are complementary to the outer circumference of the annular frame 10 shown in FIG. 2 (A). FIG. 5 is a partial perspective view showing a frame member of the artificial turf frame body according to the second embodiment of the present invention. The frame member 21 shown in FIG. 5A is a resin molded product integrally molded by resin extrusion molding. The frame member 21 has a circular cross section, and a core portion 25 extending in the longitudinal direction of the frame member 21.
And a substrate portion 23 extending on a horizontal plane passing through the center line of the core portion 25. The substrate portion 23 is for forming a mounting surface of the artificial grass, and the core portion 25 is for defining the outer edge of the artificial grass. Preferably, the frame member 21 has rigidity and durability to withstand a load generated by a pedestrian's stepping, and also has elasticity to ensure flexibility and shape restoring force that allows the frame member 1 to bend or curve. It is molded from resin. Similarly, the frame member 21 shown in FIG. 5 (B) is made of a resin molded product integrally molded by resin extrusion molding, and has a core portion 25 having a circular cross section and a substrate portion 27 forming a mounting surface of the artificial turf. Equipped with. However, the substrate portion 27 does not lie on the horizontal plane passing through the center line of the core portion 25, but extends horizontally in the tangential direction from the outer periphery of the lower end portion of the core portion 25.

FIG. 6 is a plan view showing a shape pattern of a frame body that can be formed by the frame member 21 shown in FIG. Figure 6
The frame body 30 shown in (A) is composed of the frame member 21 arranged in an annular shape as a whole. The core portion 25 is arranged on the outer circumference. The board portions 23 and 27 extend inward in the radial direction of the core portion 21 and form a circular opening portion 24 in the central region of the frame body 30. Figure 6
The frame body 30 shown in (B) is composed of the frame members 21 arranged in a rectangular shape as a whole. The core portion 25 is arranged on the outer circumference.
The substrate parts 23 and 27 extend inward of the core part 21 and
A square opening 24 is formed in the central region of 0. FIG. 6 (C)
The frame body 30 shown in is composed of the frame member 21 arranged along the three sides of the rectangle. One open end of the substrate portion 23 is shown in FIG.
An arcuate concave curved edge 26 complementary to the outer circumference of the annular frame body 30 shown in FIG. FIG. 7 is a perspective view showing a modified example of the frame body of the second embodiment. The frame body 30 includes a core portion 25 and a substrate portion 28 that are integrally formed by resin extrusion molding. The core portions 25 are arranged on both edges of the frame body 30 in the longitudinal direction, extend over the entire length of the frame body 30, and the substrate portion 2 is provided.
8 extends in the region between the core portions 25. The frame body 30 shown in FIG. 7 can be formed into a shape pattern similar to the frame body shape shown in FIGS. 4 (A) to 4 (C). Preferably, holes or openings for passing water are formed in the substrate portion 28. Further, the substrate unit 28 is
Similar to the frame member 21 shown in FIG. 5B, the frame member 21 may be arranged so as to extend horizontally in the tangential direction from the outer periphery of the lower end portion of the core portion 25.

FIG. 8 is a partial sectional view showing an artificial turf unit using the frames 10 and 30. As shown in FIG. 8 (A), the edge region of the artificial turf 100 provided with a large number of turf-like members 102 is arranged on the base cloth 3 or the substrate portion 23 of the frame bodies 10 and 30, and the artificial turf 100 and the frame body are provided. An artificial turf unit consisting of 10, 30 is formed. The grass-like member 102 is, for example,
It is formed by implanting pile yarns on the back base fabric of artificial turf and cutting the upper ends of the pile yarns. The back base cloth of the artificial turf 100 is simply placed on the base cloth 3 or the base plate portion 23, or is fixed to the base cloth 3 or the base plate portion 23 by a locking means such as sewing, stapling, adhesion or welding. It Artificial grass 100
The grass-like member 102 arranged on the outer edge of the
Are arranged adjacent to the core parts 5 and 25 of the
The outer edge area of the artificial grass 100 is defined. The core parts 5 and 25 are
An upper ridge is formed adjacent to the edge of the artificial grass 100, and the height of the ridge is set to be slightly lower than the height of the grass-like member 102. A load due to a pedestrian's stepping or the like is applied to the edge area of the artificial grass 100, but the outward inclination of the grass-like member 102 is prevented by the core portions 5 and 25, and the grass-like member 102 is initially Restore to the standing position. Even when the grass-like member 102 is plastically deformed by the repeated load, the amount of deformation is regulated by the core portions 5 and 25, so that the deformation of the grass-like member 102 is limited. Thus, the edge region of the artificial turf 100 can withstand an excessive local load or stress concentration due to the pedestrian's treading pressure, or a repeated load acting on the edge region, and can maintain the initial shape for a long time. Further, when the present inventor experimentally arranged an artificial grass unit including such a frame on a step board of stairs and carried out a durability test, the artificial grass according to the present invention withstands use for at least several years. Turned out.

The artificial turf unit shown in FIG. 8 (B) is similarly formed from the frame 30 and the artificial turf 100 having the edge region arranged on the substrate portion 27. Since the base plate portion 27 is located at the lower end portion of the core portion 25, the core portion 25 forms a relatively high height upward ridge that defines the outer edge region of the artificial grass 100. The artificial turf unit shown in FIG. 8C is composed of frame 10 and 30 provided with base cloth 7 or substrate 28 extending over the region between cores 5 and 25, and artificial turf 100. It The back base cloth of the artificial turf 100 is entirely supported by the base cloth 7 or the substrate unit 28. The artificial turf 100 is simply placed on the base cloth 7 or the base plate portion 28, or is fixed on the base cloth 7 or the base plate portion 28 via a locking means. The core portions 5 and 25 form an upper protruding portion that defines an outer edge region of the artificial grass 100, similarly to the artificial grass unit shown in FIG. Similarly, the artificial turf unit shown in FIG.
It is similarly formed from a frame body 30 having a substrate portion 28 extending over the region between the core portions 25 and the artificial turf 100. The substrate portion 28 is located at the lower end portion of the core portion 25, and therefore,
The upper ridge formed by the core portion 25 has a relatively large ridge amount.

FIG. 9 is a sectional view showing a modified example of the artificial turf unit. The artificial turf 100 is arranged on both sides of the frames 10 and 30. The lower artificial turf 100 facing the supporting surface such as the ground surface has an effect of preventing the artificial turf unit from slipping.
Further, the artificial grass 100 may be arranged on one surface and the carpet may be arranged on the other surface. In this case, depending on the application
The desired surface can be placed on the top surface and used. For example, when the artificial turf unit is used as an entrance mat or a vehicle room mat, the artificial turf 1
Artificial turf 100 with emphasis on sand removal action or water resistance of 00
On the other hand, the carpet surface can be placed on the upper surface while placing importance on the aesthetic appearance or feel of the carpet when drying. FIG. 10: is sectional drawing which illustrates the method of fixing an artificial turf unit to a support surface. A fixture for fixing the artificial turf unit, for example, the pin 2 has a core portion 5,
Adjacent to 25, the backing cloth and frame bodies 10 and 3 of the artificial grass 100
No. 0 base fabric 3, 7, 23, 27, 28, and penetrates into a support surface such as a ground surface. Thereby, the artificial turf unit can be fixed at a predetermined position on the supporting surface as a whole. Figure 1
1 is a plan view illustrating a shape pattern of the artificial turf unit, and FIG. 12 is a plan view showing a pattern of an arrangement layout of the artificial turf unit.

FIG. 11 exemplifies various shapes of the artificial turf unit in which the artificial turf 100 is arranged on the frame bodies 10 and 30. For example, the artificial turf unit shown in FIG. 11 (A) has the frame bodies 10 and 3 shown in FIG. 2 (A) or FIG. 6 (A).
0 and the artificial turf 100 in combination, as shown in FIG.
The artificial turf unit of (B) is shown in FIG. 2 (B) or FIG. 6 (B).
The present invention relates to a combination of the frame bodies 10 and 30 and the artificial turf 100 shown in FIG. Further, the artificial turf unit shown in FIG. 11C relates to a combination of the frame bodies 10 and 30 having the shape pattern shown in FIG. 4C and the artificial turf 100, and the artificial turf unit shown in FIG. 4B relates to a combination of the frame bodies 10 and 30 having the shape pattern shown in FIG. As shown in FIG. 12, these artificial turf units are arranged according to the site where the artificial turf is to be laid or the shape of the passage, and form a continuous passage of artificial turf. For example, FIG. 12 (A) (B)
, A circular artificial turf unit (FIG. 11A) and an artificial turf unit having a concave curved end (FIG. 11D) are alternately arranged in series to form a linear artificial turf passage, or The artificial turf unit can be arranged at a predetermined angle. Further, the artificial turf unit (FIG. 11C, D) having the concave curved end can be arranged radially around the circular artificial turf unit (FIG. 11A). Furthermore, if desired, circular artificial turf units (FIG. 11A) or square artificial turf units (FIG. 11B) may be arranged in the form of stepping stones or other suitable layouts. Therefore, according to the artificial turf unit described above, the artificial turf units of various shapes can be arbitrarily combined to realize a desired arrangement, so that the artificial turf unit having an extremely wide range of practical applications can be realized.

[0017]

As described above, according to the above-mentioned structure of the present invention, the core portion relieves an excessive repetitive load or a vertical load which may act on the edge region of the artificial turf, and the outside of the turf-like member. The tilting direction can be prevented by the core portion, and the amount of deformation of the grass-like member can be regulated. Therefore, according to the present invention, it bears a repeated load acting on the edge region or an excessive local load due to the pedestrian's treading pressure, and a flat ground surface or floor surface for a long time, or a ground surface having undulations, or It is possible to provide an artificial turf frame and an artificial turf unit that can be laid on a step on the floor. Moreover, according to the present invention, the artificial grass is standardized,
It is possible to perform planned production or stockpiling production of artificial turf products or commodities, which is extremely advantageous in production management. Further, the purchaser or the user of the artificial grass can construct or manage the desired artificial grass surface by appropriately combining the standardized artificial grass, which is extremely convenient in practice. Further, according to the above configuration of the present invention, by positioning the outer periphery of the frame body having the core portion of the annular array and the concave portion of the frame body having the curved concave portion adjacent to each other, the angle can be changed for the artificial grass. The frame bodies or artificial turf units may be interconnected or interconnected. Therefore, according to the present invention, it is possible to provide an artificial turf frame and an artificial turf unit that can turn the laying direction of the artificial turf to a desired direction without requiring a particular work process such as bending or cutting.

[Brief description of drawings]

FIG. 1 is a plan view showing a frame member of a frame body for artificial turf according to a first embodiment of the present invention.

FIG. 2 is a plan view of a frame body made of the frame material shown in FIG.

FIG. 3 is a plan view showing a modified example of the frame body shown in FIG.

FIG. 4 is a plan view showing a shape pattern of the frame body shown in FIG.

FIG. 5 is a partial perspective view showing a frame member of a frame body for artificial turf according to a second embodiment of the present invention.

FIG. 6 is a plan view showing a shape pattern of a frame body that can be formed by the frame material shown in FIG.

FIG. 7 is a perspective view showing a modified example of the frame body shown in FIG.

8 is a partial cross-sectional view showing an artificial turf unit using the frame body shown in FIGS. 1 to 7. FIG.

9 is a cross-sectional view showing a modified example of the artificial grass unit shown in FIG.

FIG. 10 is a cross-sectional view illustrating a method of fixing the artificial grass unit to the support surface.

FIG. 11 is a plan view illustrating a shape pattern of an artificial grass unit.

FIG. 12 is a plan view showing a pattern of an arrangement layout of an artificial turf unit.

[Explanation of symbols]

 1, 21 Frame material 5, 25 Core part 3, 7 Base cloth 10, 30 Frame body 23, 27, 28 Substrate part 100 Artificial grass 102 Grass-like member

Claims (4)

[Claims] 1. A frame body for artificial turf that defines an outer edge region of the artificial turf, wherein the frame body is adjacent to an outer edge of the artificial turf and extends along the outer edge, and from the core portion. A flat base extending inward and forming a mounting surface for the artificial turf, the core forming an upper ridge adjacent to the grass-like member arranged in the outer edge region of the artificial turf. The artificial turf frame, wherein the upper raised portion has a height lower than that of the turf-like member. 2. The artificial turf according to claim 1, wherein the core portion is annularly arranged so that the base portion is oriented inward in the radial direction, and has an outer peripheral contour extending in the circumferential direction. Frame. 3. The core portion forms a side edge of a frame body having a predetermined length in a long side direction, and an end edge of the frame body is provided with a curved concave portion having a predetermined curvature. The frame body for artificial turf according to claim 1. 4. The artificial turf frame according to any one of claims 1 to 3, and the artificial turf arranged on a mounting surface of the frame, wherein an outer edge of the artificial turf has a core of the frame. An artificial turf unit, which is adjacent to a part and extends along the core part.