JPH1136249A - Vehicle block net - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle block net which is light-weighted, can be simply carried, easily used and safely stop a vehicle by fixing a sticking member stuck to the tire of the vehicle to the peripheral edge of a turnable sheet-like net. SOLUTION: Plural sheets of glass fiber cloth 30 are sewn on one side 20a of a turnable rectangular sheet-like net 20 and fixed to construct a vehicle block net 10. An adhesive for making the fiber cloth 30 adhere to a tire is applied to the surface of each fiber cloth 30. This net 10 is laid on the road surface, whereby after the fiber cloth 30 sticks to the tire of the vehicle which has passed thereon, the net 20 gets twisted round the tire. Accordingly, the rotation of the tire can be stopped forcedly to inhibit running of the vehicle, so that the vehicle can be safely stopped. The net 10 is light-weight, and can be easily carried by rolling or folding the net. Further at the time of use, it is sufficient to just spread the rolled or folded net 10 to be used, so that it can be easily used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a net for preventing a vehicle from running.

[0002]

2. Description of the Related Art Conventionally, there are known some devices for forcibly stopping a running vehicle. As one of such stopping devices, Japanese Patent Application Laid-Open No. S57-71908 discloses the following.
A stopping device is disclosed in which a net is attached between columns of books and a weight is attached to the columns. According to this stopping device,
When the traveling vehicle is caught on the net, the traveling vehicle is dragged by the weight, and the vehicle is forcibly stopped.

Japanese Patent Application Laid-Open No. 58-29911 discloses a stopping device in which a plurality of rubber lumps are fixed on the upper surface of a rubber mat, and a stopping device in which a foam molding is fixed to a net-like material. By laying such a rubber mat or mesh on the road surface, irregularities are formed on the road surface, and the running vehicle is forcibly stopped.

[0004] Japanese Patent Application Laid-Open No. 7-315018 discloses a stopping device in which an adhesive is applied to a wide surface of a paper stretched over a base material layer. A protective paper for protecting the adhesive is provided on a wide surface of the paper to which the adhesive is applied.
When the paper coated with this adhesive is spread on the road surface, the protective paper is peeled off, and the adhesive is exposed, the paper wraps around the tire of the vehicle passing over the adhesive and bites between the tire and the vehicle body Therefore, the vehicle is forcibly stopped.

Further, Japanese Patent Laid-Open Publication No. Hei 8-49221 discloses an apparatus in which a sharp projection is fixed to a plurality of rigid bodies with the upwards. The running vehicle is forcibly stopped by spreading the tire on the road surface and puncturing the tire.

[0006]

Among the above-mentioned stopping devices, a device in which a net is attached between two columns is a large-scale device having a large number of parts. For this reason, the cost is high, and a truck or the like is required for carrying, which is inconvenient.

Further, a stopping device or the like in which a plurality of rubber lumps are fixed on the upper surface of the rubber mat is heavy and bulky because of the plurality of rubber lumps, and is inconvenient to carry.

[0008] In addition, the stopping device in which the pressure-sensitive adhesive is applied to a wide surface of the paper is inconvenient to carry, like the above-described device, because the amount of the paper and the adhesive is large and heavy. Moreover, in order to stop the vehicle by laying the paper on the road surface, it is necessary to peel off the protective film stretched over a wide surface of the paper, and the workability is poor.

Furthermore, a device in which sharp projections are fixed upward on a plurality of rigid bodies punctures the tires to stop the vehicle, so that there is no danger of an accident.

The present invention has been made in view of the above circumstances, and has as its object to provide a vehicle blocking net that is not only lightweight and easy to carry but also easy to use and that can safely stop a vehicle.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, a vehicle blocking net according to the present invention is a vehicle blocking net for blocking the running of a vehicle, and (1) a bendable sheet-like net. 2) A sticking member fixed to a peripheral portion of the net and sticking to a tire of a vehicle is provided.

Here, the attaching member may be (3) a plurality of attaching members projecting outward from a peripheral portion of the net and spaced apart from each other by a predetermined distance.

[0013] The sticking member may be (4) an adhesive applied to bond the sticking member to a tire.

Further, the attaching member may have (5) a number of projections penetrating the tire.

Further, the net may be configured such that: (6) hooks hooked on the net are fixed at a plurality of locations.

Further, the net may have (7) an overlapping portion which is folded back in a predetermined direction and overlapped.

Further, the net may be (8) elastic.

Here, the attaching member may be fixed to at least a part of the periphery of the net.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing a vehicle blocking net according to one embodiment.

The vehicle blocking net 10 comprises a bendable rectangular sheet-like net 20 and one side of the net 20 (an example of a peripheral portion of the net according to the present invention) 20a.
And a plurality of glass fiber cloths (an example of a sticking member according to the present invention) 30 which are sewn and fixed to the fabric.
The size of the net 20 is changed according to the width of the road on which the vehicle blocking net 10 is laid or the size of the vehicle. For example, the length of one side 20a is about 8 m and the length of the other side 20b is 4 m.
About 6 m. On the other hand, the size of the glass fiber cloth 30 is changed according to the tire size of the vehicle.
Length L is about 0.5 to 1.0 m, and width W is 0.4 to
It is about 0.6 m. Since the net 20 is light and the glass fiber cloth 30 is relatively small and light, by winding them into a roll, the vehicle blocking net 10 becomes compact, lightweight, and easily portable.
Although the rectangular net 20 is shown here, the net may be a square, a diamond, a quadrilateral, a circle, an ellipse, a triangle, or the like.

The details of the net 20 will be described.

The net 20 is made of polyethylene or nylon and has elasticity. The thickness of, for example, a polyethylene thread constituting the net 20 is 2 to 3 mm. The strength of polyethylene yarn is 150 ~
Approximately 250 kg, 170 to 270 in the diameter direction of the yarn
It is about kg. The elongation of the polyethylene yarn is about 27 to 36% in the length direction of the yarn, and 30 to 4 in the diameter direction of the yarn.
It is about 2%. These values are based on JIS L 1
043 5.9 test method and JIS L 1043-1
It was determined by the 0.1 test method.

The mesh size of the net 20 is 15 to 15
It is a square within a range of 45 mm. In FIG. 1, the mesh is a square, but the mesh is not limited to this, and may be a rectangle, a rhombus, a quadrilateral, a circle, an ellipse, a triangle, or the like.

A plurality of hooks 22 are fixed to the net 20 at appropriate positions. These hooks 22
As described later, when the net 20 is entangled with the tire (not shown) of the vehicle, the net 20 is caught by the net 20 and the net 20 is more securely entangled with the tire. Further, a double-sided tape 24 is fixed to the four corners of the back surface of the net 20. When the net 20 is laid (installed) on the road surface, the net 20 is attached to the road surface with the double-sided tape 24. When the net 20 is laid on the road surface in this way, it is possible to prevent the net 20 from being blown up by wind or the like. However, it is not preferable that the net 20 is too strongly adhered to the road surface, because the net 20 is hard to separate from the road surface and is hardly entangled with the tire.

Next, the details of the glass fiber cloth 30 will be described.

The glass fiber cloth 30 is formed on one side 2 of the net 20.
0a, and has a width W of about 0.4 to 0.6 m as described above. The interval D between the plurality of glass fiber cloths 30 adjacent to each other is about 2 cm (an example of the predetermined interval according to the present invention). The surface of each glass fiber cloth 30 is coated with an adhesive for bonding the glass fiber cloth 30 to a tire. Here, a double-sided tape (Teraoka Seisakusho part number tape No. 711 double-sided adhesive tape) was attached to the surface of the glass fiber cloth 30 to obtain an adhesive. Since the double-sided tape has a release paper stretched on its surface, the vehicle blocking net 1
When using 0, the release paper is peeled off. Further, it is not necessary to apply a double-sided tape or apply an adhesive to the entire surface of the glass fiber cloth 30. However, it is better to apply an adhesive or the like to an area corresponding to at least one third of the circumference of the tire to which the glass fiber cloth 30 is to be stuck. The property becomes good.

The glass fiber cloth 30 sticks to the tire before the net 20 is entangled with the tire, and the net 20
Is to ensure that they are entangled. In the example shown in FIG. 1, a plurality of glass fiber cloths 30 are fixed to one side 20a of the net 20 apart from each other. The reason for this is that, when one piece of glass fiber cloth having the same width as one side 20a of the net 20 is sewn to this one side 20a, the tire passing over this one piece of glass fiber cloth has This is because even if a part of the glass fiber cloth is about to stick, the remaining part of the glass fiber cloth is subject to wind, so that the above-mentioned part is difficult to stick. Therefore, instead of sewing a plurality of glass fiber cloths 30 adjacent to each other at a distance D and sewing them to one side 20a of the net 20, one glass fiber cloth having substantially the same width as the one side 20a of the net 20 is attached to the one side 20a. Perforations or cuts may be formed at intervals of about 0.4 to 0.6 m by sewing, and the glass fiber cloth 30 may be easily broken at the perforations or cuts.

Further, a double-sided tape 32 is fixed to the back surface at the corner at the tip of each glass fiber cloth 30. When the vehicle blocking net 10 is laid on the road surface, each glass fiber cloth 30 is stuck to the road surface with the double-sided tape 32. This allows
Each glass fiber cloth 30 can be prevented from being blown up by wind or the like. However, it is not preferable that the glass fiber cloths 30 are too strongly adhered to the road surface, because the glass fiber cloths 30 are hard to separate from the road surface and hardly adhere to the tire.

Referring to FIG. 2, a method of using the vehicle blocking net 10 will be described.

FIG. 2 is a schematic diagram showing a state where two sets of vehicle blocking nets are laid on the road surface.

As described above, the vehicle blocking net 10 can be made compact by winding it up into a roll and bending it, so that it can be mounted on the trunk of a user's vehicle and can be easily carried. When using the vehicle-blocking net 10, the vehicle-blocking net 10 is lowered onto a road surface on which a vehicle 40 such as a runaway vehicle passes, and a plurality of glass fibers are directed toward the upstream side in the traveling direction of the vehicle 40 (in the direction of arrow A). The vehicle blocking net 10 is spread on the road surface so that the cloth 30 projects. Next, the release paper of the double-sided tape adhered to the surface of each glass fiber cloth 30 is peeled off to expose the adhesive surface of the double-sided tape. This series of operations was completed in about one minute in the experiment, and preparations for preventing the vehicle 40 from running were completed.

As described above, the vehicle blocking net 10 is mounted on the road surface.
Is installed, the vehicle 4 traveling from the direction of arrow A
0 passes through the vehicle-blocking net 10, one of the glass fiber cloths 30 adheres to the front wheel, and then the net 2
0 is entangled with the front wheels, and the vehicle 40 stops as indicated by the two-dot chain line in the figure. The detailed process until the vehicle 40 stops will be described later with reference to FIGS. As shown in FIG. 2, when two sets of vehicle blocking nets 10 are installed on the road surface, even if a large vehicle runs at a high speed, the speed of the large vehicle is significantly reduced by the vehicle blocking net 10 in front. The running of the large vehicle can be reliably prevented by the vehicle blocking net 10 at the back.

A process until the vehicle 40 stops will be described with reference to FIGS.

FIG. 3 (a) shows a glass fiber cloth 30 attached to a tire.
Is a schematic diagram showing a state where sticking has begun, and FIG.
It is a schematic diagram showing a state in which the net has begun to entangle with the tire,
(C) is a schematic diagram showing a state in which the net is entangled with the tire. Although the net is entangled with the whole tire, the drawings from (a) to (c) schematically show the net entangled only on the ground contact surface of the tire. FIG. 4A is a schematic diagram showing a net entangled with the front wheels of the vehicle, and FIG.
FIG. 2 is a schematic view showing a net entangled on a side surface (a surface other than a ground contact surface) of the tire. In these drawings, the same components as those in FIG. 1 are denoted by the same reference numerals. FIG. 4A shows a state in which the net 20 is entangled with only one of the left and right tires.

The vehicle blocking net 10 is effective as a device for forcibly blocking the traveling of the four-wheeled vehicle. If the vehicle blocking net 10 is used to forcibly prevent the traveling of the motorcycle, the motorcycle may fall and injure the driver. Therefore, here, a case will be described in which the traveling of the four-wheeled vehicle is forcibly prevented. In this case, there are a case where the net is entangled with both the left and right tires of the front wheel, and a case where the net is entangled with only one of the left and right tires. First, the case where the net is involved in both the left and right tires will be described.

When the tire 60 is placed on the glass fiber cloth 30,
As shown in FIG. 3A, the glass fiber cloth 30 is
Start sticking to 0. When the vehicle 40 (see FIG. 2) travels a little more, as shown in FIG.
0 is completely stuck to the tire 60, and subsequently the net 20 begins to entangle with the tire. When the vehicle 40 further travels, the net 20 is entangled with the tire 60 as shown in FIG. 3C, and the net 20 is also entangled with the fixed parts and the axle 62 around the tire 60 as shown in FIG. . As shown in FIG. 4, the tire 60 is tightened by the entangled net 20. As a result, the tire 60 cannot rotate and stops. However, tire 60 and road surface 5
Since the net 20 exists between 0 and 0, and the tire 60 is placed on the net 20, the vehicle 40 travels in a slip state without stopping.

While the vehicle 40 is running in the slip state, the steering wheel is not taken because the tires 60 are restrained and fixed by the net 20, and the running direction of the vehicle 40 hardly changes. When the vehicle 40 travels for a short distance in this slip state, a portion of the net 20 on which the tire 60 is mounted is cut by friction with the road surface 50, and the tire 60 comes into contact with the road surface again. Due to this contact, the tire 60 starts to rotate, but due to this rotation, an unbroken portion of the net 20 enters between the tire 60 and the road surface 50. As a result, as described above, the tire 60 is again put on the net 20 and stopped, and the vehicle 40 runs again in the slip state.
The part with 0 is cut again.

As described above, the tire 60 repeatedly stops and rotates due to the net 20 entangled with the tire 60, so that the vehicle 40 is decelerated and the engine stops (stalls). The process of such a stop is similar to the process of stopping the vehicle 40 by an ABS (anti-lock brake system), and the vehicle can be safely stopped.

Next, a case where the net 20 is entangled with only one of the left and right tires 60 of the front wheel will be described.

The net 20 is entangled with only one of the left and right tires 60 of the front wheel (here, for example, the right tire, but the same applies to the left tire), and the net 20 is not entangled with the left tire. There is. In this case, the vehicle 40
As the vehicle travels, the net 20 is also entangled with the fixed parts and the axle 62 around the right tire 60 where the net 20 is entangled, and the tire 60 is tightened. (See FIG. 2), and the right tire 60 ′ of the rear wheel stomps on the net 20 and rides on the net 20. As a result of the right tire 60 of the front wheel being fastened to the net 20, the right tire 60 of the front wheel cannot rotate and stops as in the case where the net is entangled in both left and right tires. The right tire 60 'of the rear wheel remains on the net 20. Therefore, the net 20 is located between the front wheel right tire 60 and the rear wheel right tire 60 ′ and the road surface 50.
Exists, and the vehicle 40 runs with both tires 60 and 60 ′ mounted on the net 20. On the other hand, the front wheel left tire has no net 20 and the rear wheel left tire has net 20.
Does not appear on Therefore, the vehicle 40 runs while the front left wheel and the rear left wheel remain in direct contact with the road surface 50.

As described above, the front wheel right tire 60 is
When the vehicle 40 runs with the rear wheel right tire 60 'resting on the net 20 while being entangled with zero, the front and rear right tires 60, 60' slip. On the other hand, the left tires of the front wheels and the rear wheels do not slip because they rotate by directly contacting the road surface 50. When the vehicle 40 travels for a short distance in this state, the vehicle 40 starts to lean slightly, but the portion of the net 20 on which the right tires 60 and 60 ′ of the front wheels and the rear wheels are mounted is cut by friction with the road surface 50 and the front wheels are cut off. Since the right tires 60 and 60 'of the rear wheels contact the road surface 50 and rotate, the vehicle 40 does not lean significantly. Although the right tires 60, 60 'of the front wheels and the rear wheels start to rotate due to the contact with the road surface 50, due to this rotation, the unbroken portion of the net 20 becomes the right tires 60, 60' of the front wheels and the rear wheels and the road surface 50. Get in between. As a result, similarly to the above, the right tires 60 and 60 ′ of the front wheel and the rear wheel are again put on the net 20 and the vehicle 40 runs with a slight inclination. Right tire 60,
The part on which 60 'is placed is cut again.

In this way, the tires 60, 60 'repeatedly stop and rotate due to the net 20 on which the front wheel right tire 60 and the rear wheel right tire 60' are mounted, so that the vehicle 40 is decelerated. Then, the engine is stopped, and the running of the vehicle 40 is stopped. Note that when the vehicle 40 is traveling at a speed of 60 km, the tip of the vehicle 40 is approximately 2 degrees with respect to the traveling direction (the direction of the arrow A shown in FIG. 2).
m.

An example of a net having an overlapping portion will be described with reference to FIG.

FIG. 5A is a perspective view showing a net having an overlapping portion, and FIG. 5B is a schematic diagram showing the overlapping portion in an exaggerated manner. In this figure, the same components as those in FIG. 1 are denoted by the same reference numerals.

The feature of the vehicle blocking net 70 is that the net 8
0 in that an overlapping portion 82 is provided.
This is the same as the vehicle blocking net 10 shown in FIG. The overlapping portion 82 extends in the traveling direction of the vehicle (the direction of the arrow A, which is an example of the predetermined direction in the present invention), and the net 80 is folded back so that three nets are stacked. Has become. When the overlapping portion 82 is formed on the net 80 in this manner, the net 8 is attached to a part under the floor of the vehicle 40 (see FIG. 2).
Even if the net 80 is hardly entangled with one of the two tires of the front wheel due to a part of 0 being pressed down, since the overlapping portion 82 is widened, the net 80 is securely entangled with both the tires of the front wheel, The vehicle 40 can be favorably prevented from running. In the figure, the overlap portion 82 is formed only at one place, but by forming it at a plurality of places, the effect is doubled.

Referring to FIG. 6, another example of a net having an overlapping portion will be described.

FIG. 6A is a perspective view showing a net having an overlapping portion, and FIG. 6B is a schematic diagram showing the overlapping portion in an exaggerated manner. In this figure, the same components as those in FIG. 1 are denoted by the same reference numerals.

The feature of the vehicle blocking net 90 is that the net 1
00 in that an overlapping portion 102 is provided.
This is the same as the vehicle blocking net 10 shown in FIG. The overlapping portion 102 extends in the traveling direction of the vehicle (the direction of arrow A), and the net 80 is folded back from the left and right, and three nets are stacked at two places. Overlapping part 1
02 is loosely sewn with a thread 104. When the overlapping portion 102 is formed on the net 100 in this manner, as in the case of FIG. 5, a part of the net 100 is pressed against a part under the floor of the vehicle 40 (see FIG. 2), and either of the two tires of the front wheels is pressed. Even if the net 100 is hardly entangled on one side, since the overlapping portion 102 is widened, the net 100 is securely entangled with both tires of the front wheels, and the traveling of the vehicle 40 can be favorably prevented. In the figure, the overlapping portion 102 is formed only at two places, but by forming it at a plurality of places, the effect is doubled.

Referring to FIG. 7, another example of the sticking member according to the present invention will be described.

FIG. 7A is a perspective view showing an example of a sticking member, and FIG. 7B is a side view of FIG.

In the vehicle blocking net 10 shown in FIG. 1, the attaching member is constituted by attaching a double-sided tape to the surface of the glass fiber cloth 30, but here, the glass fiber cloth 30 is used.
A sticking member was formed by piercing a stud (an example of a protrusion according to the present invention) 112 and fixing the head 112 a of the stud 112 with a double-sided tape 114. As for the number of the studs 112, for example, ten pieces were pierced into one glass fiber cloth 30 in four rows.

In the case of a sticking member having a structure in which the glass fiber cloth 30 is stuck to the tire using a double-sided tape or an adhesive, the adhesive strength may be reduced in rainy weather, and the glass fiber cloth 30 may be difficult to stick to the tire. . However, the stud 1
12 uses a glass fiber cloth 30 even in rainy weather.
Sticks securely to the tire. Note that the studs 112 are not for puncturing the tire, but for securely attaching the glass fiber cloth 30 to the tire.

In the embodiment described above, a glass fiber cloth is used as the attaching member. However, any other durable cloth may be used. For example, cloth (cloth) such as clothes may be used. In addition to cotton, hemp and wool, cloth woven with synthetic fibers such as tetron is considered. Also, without using such a cloth, a plurality of cuts are made in the peripheral portion of the net 20 so as to have the same size as the glass fiber cloth 30 shown in FIG. 1 to form a plurality of small rectangular nets. One side of the double-sided adhesive tape may be attached to a plurality of small rectangular nets. In this case, the cut portion may be reinforced with cloth, cloth tape, thread, or the like. Nets like this,
It is within the scope of the present invention.

[0055]

As described above, by laying the vehicle-blocking net of the present invention on the road surface, the sticking member sticks to the tire of the vehicle passing over it, and subsequently the net is entangled with this tire. . As a result, the rotation of the tires is forcibly stopped, the traveling of the vehicle is prevented, and the vehicle can be safely stopped. Also, the net is lightweight and can be easily carried by rolling or folding it. When using the vehicle-blocking net, it is easy to use because the wound or folded net need only be expanded.

In the case where a plurality of sticking members project outward from the periphery of the net and are spaced apart from each other by a predetermined distance, one or two of the sticking members are attached to the tire. Attempting to stick does not cause the other sticking member to move with the one or two sticking members. Therefore,
The other sticking members do not receive the wind, and the wind pressure does not make it difficult for one or two sticking members to stick to the tire.

When the adhesive is applied to the tire, an adhesive having a simple structure can be obtained.

Further, when the sticking member has a large number of projections that pierce the tire, the projections pierce the tire unlike the adhesive even in rainy weather. Can be attached to the tire.

Further, in the case where the net has hooks fixed to a plurality of places on the net, the hooks are hooked on the net and the net becomes entangled with the tire. When the speed of the vehicle is slow, the net is hardly entangled with the tire. However, even in such a case, the hook is hooked on the net, so that the net can be entangled with the tire without fail.

Further, when the net has an overlapping portion that is folded back in a predetermined direction and overlapped, it is difficult for a part of the net to be pressed against parts under the floor of the vehicle and the net is not easily entangled with the tire. Even if there is, this overlapping portion is widened, so that the net can be reliably entangled with the tire.

Further, when the net is stretchable, the net expands and contracts, so that the impact when the vehicle stops is further reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a state where two sets of vehicle blocking nets are laid on a road surface.

3A is a schematic diagram showing a state in which a glass fiber cloth has begun to stick to a tire, FIG. 3B is a schematic diagram showing a state in which a net has started to be entangled in a tire, and FIG. It is a mimetic diagram showing the state where the net was entangled with the tire.

FIG. 4A is a schematic diagram illustrating a net entangled with a front wheel of a vehicle, and FIG. 4B is a schematic diagram illustrating a net entangled with a side surface (a surface other than a ground contact surface) of a tire.

FIG. 5A is a perspective view showing a net having an overlapping portion, and FIG. 5B is a schematic diagram showing the overlapping portion in an exaggerated manner.

6A is a perspective view showing a net having an overlapping portion having a shape different from that of FIG. 5, and FIG. 6B is a schematic diagram showing the overlapping portion in an exaggerated manner.

FIG. 7A is a perspective view showing an example of a sticking member, and FIG. 7B is a side view of FIG.

[Explanation of symbols]

 10, 70, 90 Net for preventing vehicles 20, 80, 100 Net 22 Hook 30, Glass fiber cloth 82, 102 Overlap portion 112 Projection

Claims (7)

[Claims] Claims 1. A net for preventing a vehicle from traveling, comprising: a bendable sheet-like net; and a sticking member fixed to a peripheral portion of the net and attached to a tire of the vehicle. A vehicle blocking net characterized by the following. 2. The vehicle blocking net according to claim 1, wherein the sticking members are a plurality of sticking members protruding outward from a peripheral edge of the net and spaced apart from each other by a predetermined distance. 3. The vehicle blocking net according to claim 1, wherein the sticking member is coated with an adhesive for bonding the sticking member to a tire. 4. The vehicle blocking net according to claim 1, wherein the attaching member has a large number of projections that pierce a tire. 5. The vehicle blocking net according to claim 1, wherein the net has hooks fixed to a plurality of positions hooked on the net. 6. The vehicle blocking net according to claim 1, wherein the net has an overlapped portion folded back in a predetermined direction. 7. The vehicle blocking net according to claim 1, wherein the net is elastic.