JP3956714B2 - Protective barrier - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a protective barrier suitable for use in protecting a single rider in an auto racing circuit.
[0002]
[Prior art]
In the auto racing circuit, a protective barrier is disposed along the wall surface in order to absorb an impact when a rider thrown out from a single vehicle that has fallen due to a curve or the like collides with the wall surface. Many of the protective barriers used in the past are mainly urethane foam.
[0003]
British Patent GB 2292404 describes a protective barrier in which a foam is encapsulated with a PVC cover.
[0004]
[Problems to be solved by the invention]
An object of this invention is to provide the protective barrier excellent in the flame retardance. Another object of the present invention is to provide a protective barrier that can sufficiently protect a rider.
[0005]
[Means for Solving the Problems]
Protective barrier of the present invention is a protective barrier with synthetic resin foam for receiving the body, a protective barrier that encapsulate the synthetic resin foam in flame-retardant cover, the synthetic resin foam, the body It has a front surface for receiving and has a hollow portion extending in a direction parallel to the front surface .
[0006]
In such a protective barrier, since the cover constituting the outer surface has flame retardancy, even if there is a fire in the vicinity of the protective barrier, it does not immediately burn out to the protective barrier.
[0007]
The synthetic resin foam has a front face for receiving a human body, and that having a cavity extending in the front and parallel. By providing the hollow portion in this way, when the rider has plunged into the protective barrier, a wide area of the synthetic resin foam is deformed (depressed deformation), so when the synthetic resin foam tries to restore its original shape Restoration is weak. This reduces the rebound applied to the rider from the protective barrier.
[0008]
In addition, it is preferable that this cavity part is provided with two or more in parallel. Moreover, it is preferable that the ratio of the cross-sectional area of the cavity part in the cross section of the synthetic resin foam in the cross section orthogonal to both the front surface and the bottom surface of the protective barrier is 10 to 80%.
[0009]
In the present invention, it is preferable that the cover has a connecting means for connecting the protective barriers arranged so that the front surfaces thereof are flush with each other. In particular, the connecting means preferably has a flap extending from the longitudinal corner edge of the protective barrier so as to close the gap between the protective barriers. When the protective barriers are connected by this flap, the thrown-out rider is prevented from entering between the protective barriers.
[0010]
In this case, the protective barrier has a substantially square plan view shape, and it is preferable that the flaps respectively extend from a pair of longitudinal corner edges positioned diagonally in the plan view. In particular, it is preferred that the remaining pair of longitudinal corner edges of the protective barrier and the flaps be provided with planar fasteners that can be attached to each other.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments will be described with reference to the drawings. 1A is a perspective view of a protective barrier according to the embodiment, FIG. 1B is a view taken in the direction of arrow B in FIG. 1A, and FIGS. 2A, 2B, and 2C are the protection barriers. FIG. 3 is a perspective view of a state in which the protective barrier is connected, FIG. 4 is a configuration diagram of urethane foam inside the protective barrier, FIG. 4A is a plan view, and FIG. ) Is a front view, (c) is a side view, (d) is a sectional view taken along line DD in FIG. 4, (e) is a sectional view taken along line EE in FIG. 4, and (f) is a diagram. 4 is a sectional view taken along line FF in FIG.
[0012]
The protective barrier 1 includes a flame retardant urethane foam 10 as a synthetic resin foam and a flame retardant cover 20 encapsulating the urethane foam 10.
[0013]
The urethane foam 10 has a substantially rectangular parallelepiped shape. The urethane foam 10 includes a body 11 made of urethane foam having through holes 12 penetrating in the longitudinal direction, end plates 13 made of urethane foam bonded to both end faces of the body 11, and both sides of the body 11 in the longitudinal direction. And a side plate 14 made of urethane foam bonded to the surface.
[0014]
In this embodiment, the through-holes 12 extend in a direction parallel to the longitudinal direction of the side surface, and a total of four through-holes are provided in two upper and lower stages. A large number of grooves 15 extending in the longitudinal direction are provided on both side surfaces of the body 11, and each groove 15 has a tunnel shape by bonding the side plate 14.
[0015]
Further, the end plate 13 is bonded to both end faces of the body 11, whereby both ends of the tunnel-like groove 13 are closed, whereby the groove 13 forms an elongated sealed cavity. Both ends of the through-hole 12 are closed by bonding end plates 13 to both end faces of the body 11 to form a sealed cavity.
[0016]
The ratio of the total cross-sectional area of the hollow portion constituted by the through-hole 12 and the groove 13 to the cross-sectional area of the urethane foam 10 (including the cross-sectional area of these hollow portions) is 10 to 80%, particularly 20 to 60%. In particular, it is preferably 30 to 50%. If this ratio is less than 10%, the deformation of the urethane foam 10 when the rider collides is reduced, and the shock absorption may be insufficient. On the other hand, if the ratio is larger than 80%, the urethane foam 10 is excessively deformed when the rider collides, and the shock absorption may be insufficient.
[0017]
The side plate 14 is provided with a number of grooves extending in the vertical direction. The groove has a triangular cross-sectional shape, and the surface of the side plate 14 has a continuous triangular horizontal cross-sectional shape.
[0018]
The upper surface of the urethane foam 10 has a bowl shape that is curved so as to be slightly convex upward.
[0019]
The hardness of the urethane foam 10 is preferably about 5 to 12 kgf.
[0020]
The cover 20 is a substantially rectangular bag having a pair of long side surfaces 21, 21, a pair of end surfaces (short side surfaces) 22, 22, an upper surface 23, and a bottom surface (not labeled). is there. This cover 20 is manufactured by sewing a flame-retardant sheet material. The sheet material is preferably a sheet material made of a strong material such as glass fiber and covered with a synthetic resin.
[0021]
The protective barrier 1 is configured by housing the urethane foam 10 in the cover 20.
[0022]
A flap 31 is extended from a pair of longitudinal corner edges that are diagonal lines in the plan view of the protective barrier 1, and a flat fastener 32 is provided on the surface of each flap 31 that faces the end face 22. The flap 31 extends in the extending direction of the longitudinal side surface 21 of the cover 20. The flap 31 extends over substantially the entire longitudinal corner edge.
[0023]
A flat fastener 33 is provided on each longitudinal side surface 21 of the cover 20 in the vicinity of the remaining pair of longitudinal corner edges.
[0024]
The flat fastener 33 has a property of being detachable from the flat fastener 32.
[0025]
A skirt 34 extends from the lower edge of the longitudinal side surfaces 21 and 21 of the cover 20. The skirt 34 extends over the entire lower edge, and further extends slightly from both ends of the lower edge in the extending direction of the longitudinal side surfaces 21 and 21. The skirt 34 is provided with an opening 35 for passing an anchor.
[0026]
A grip belt 36 for grasping the protective barrier 1 is sewn on the end surface 22 of the cover 20.
[0027]
Note that the upper surface of the protective barrier 1 has a bowl-like shape that is convexly curved upward along the upper surface of the urethane foam 10. This prevents rainwater from accumulating on the upper surface of the protective barrier 1.
[0028]
As shown in FIG. 3, the protective barrier 1 is disposed adjacent to each other with the end faces 22 facing each other, the flap 31 is overlapped with the longitudinal side surface of the adjacent protective barrier 1, and the flat fastener 32 of the adjacent protective barrier is disposed. The protective barriers 1 are connected to each other.
[0029]
By connecting the flat fastener 32 and the flat fastener 33 of the flap 31 on both the front side and the rear side of the protective barrier 1, the protective barrier 1 becomes a firmly connected body that does not wobble in the horizontal direction.
[0030]
The protective barrier 1 is disposed along the guard rail of a race circuit or the front surface of a wall, for example. Then, the anchor is fixed to the ground by hitting the anchor through the opening 35 to the ground.
[0031]
The protective barrier 1 may have either of the long side surfaces 21 and 21 as the front surface.
[0032]
When the rider rushes into the protective barrier 1, the urethane foam 10 is recessed and deformed. However, since there are a plurality of hollow portions derived from the through holes 12 and the grooves 15, the protective barrier 1 is recessed over a wide range. The shock applied to the rider is absorbed.
[0033]
The urethane foam 10 that has been deformed into recesses is then restored to its original shape by its own elasticity, but since the deformation of the urethane foam 10 extends over a wide range, the restoration as a whole is gradual. The impact applied to the rider by force (springback) is small.
[0034]
In this embodiment, the gap between the end faces 22 of the protective barrier 1 is closed by the flap 31, so that even if the rider rushes into the protective barrier 1, it does not enter this gap. In addition, since the skirt 34 is provided and the skirt 34 is fastened to the ground with an anchor, it is possible to prevent the rider who has thrust into the space between the bottom surface of the protective barrier 1 and the ground.
[0035]
In addition, since the urethane foam 10 and the cover 20 have flame retardance, even if a fire occurs nearby, it is difficult to burn.
[0036]
In addition, although illustration is abbreviate | omitted, you may provide the loop part etc. which let the rope for connecting this protective barrier 1 to a guard rail etc. pass.
[0037]
The protective barrier of the present invention is suitable for being provided on a race circuit as described above, but it can also be installed on other parts where people collide, such as gymnasiums and stadium walls. In the present invention, a synthetic resin foam other than urethane foam may be employed.
[0038]
【The invention's effect】
As described above, according to the present invention, a protective barrier capable of sufficiently absorbing the impact of a rider or the like and having flame resistance is provided.
[Brief description of the drawings]
FIG. 1A is a perspective view of a protective barrier according to an embodiment, and FIG. 1B is a view taken in the direction of arrow B in FIG.
FIGS. 2A, 2B, and 2C are a plan view, a front view, and a side view of the protective barrier. FIG.
FIG. 3 is a perspective view of a state in which protective barriers are connected.
4A and 4B are configuration diagrams of urethane foam inside a protective barrier, in which FIG. 4A is a plan view, FIG. 4B is a front view, FIG. 4C is a side view, and FIG. D line sectional drawing, (e) figure is the EE sectional view taken on the line of FIG. 4, (f) figure is the FF sectional view taken on the line of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Protective barrier 10 Urethane foam 12 Through-hole 15 Groove 20 Cover 21 Long side surface 31 Flap 32, 33 Planar fastener 34 Skirt 35 Opening 36 Grip belt

Claims (9)

In a protective barrier having a synthetic resin foam for receiving the human body,
A protective barrier encapsulating the synthetic resin foam with a flame retardant cover ,
The synthetic resin foam has a front surface for receiving a human body and has a hollow portion extending in a direction parallel to the front surface . 2. The protective barrier according to claim 1, wherein a plurality of the cavity portions are extended in parallel. The protective barrier according to claim 1 or 2, wherein a ratio of a cross-sectional area of a cavity portion in a cross section of the synthetic resin foam in a cross section orthogonal to both the front surface and the bottom surface of the protective barrier is 10 to 80%. . The protective barrier according to any one of claims 1 to 3 , wherein the cover has a connecting means for connecting the protective barriers arranged so that the front surfaces thereof are flush with each other. 5. The protective barrier according to claim 4 , wherein the connecting means includes a flap extending from a longitudinal corner edge of the protective barrier so as to close a gap between the protective barriers. 6. The protection according to claim 5 , wherein the protective barrier has a substantially square shape in plan view, and flaps extend from a pair of longitudinal corner edges positioned diagonally in plan view. Barrier. 7. The protective barrier according to claim 6 , wherein the pair of longitudinal corner edges of the protective barrier and the flap are provided with flat fasteners that can be bonded to each other. In any one of claims 1 to 7, thrown the human body, characterized in that the skirt to prevent from entering between the protective barrier and the ground is extended from the lower edge of said cover Protective barrier. In any one of claims 1 to 8, protective barrier, wherein said synthetic resin foam is a flame retardant urethane foam.

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