JPH0465926B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) About the Object of the Invention The present invention firstly aims to reduce the number of traffic accidents that continue to increase rapidly in a rapidly overcrowded motorized society, especially those that occur on the road or on the roadside at any time of the day or night. One of the purposes is to prevent traffic accidents at construction sites, but at various construction sites on or near roads, various signs are erected to indicate that construction is underway to alert passing vehicles. However, it is well known that the social impact of accidents is becoming widespread and serious, as accidents involving people and equipment continue to occur due to vehicles plowing into construction sites.

In view of the above, the present invention aims to prevent not only accidents resulting in injury or death but also damage to equipment even if a vehicle enters a work site.Second purpose is to prevent runways from becoming overcrowded when aircraft take off and land. The purpose is to save equipment and human lives in the event of an aircraft accident that overruns the aircraft.

(A) Regarding conventional technology and problems First of all, as a means to prevent this type of accident caused by runaway cars, conventional methods have been to erect various construction signs at construction sites as described above, or sometimes use simple equipment. Measures were taken to stop intruding vehicles by stringing ropes around them, or placing sandbags, water bags, sand bags, etc., to create obstructions. This method not only destroys the intruding vehicle when it collides with the installed obstacle, but also causes the installed obstacle to be blown away, causing accidents not only to the driver but also to the construction workers. In addition, the current situation is that they can break through obstacles and enter construction sites, causing serious damage.

In the case of aircraft, a method is used to stop overrunning aircraft and at the same time extinguish any fires that may occur, using a structure consisting of a mud pit built in front of the runway and a water ditch behind it. However, with this method, the aircraft would inevitably collide with the debris and be damaged, the impact would inevitably cause loss of human life, and if a fire were to occur, the fuel fire would be unable to be extinguished with the water in the ditch. The problem is that it is natural for people to fall into this situation.

(B) Regarding the problems to be solved by the present invention As mentioned above, the conventional technical means are all limited to difficult or immovable stopping means such as fixing or installing heavy objects or installing structures. Therefore, the intruder vehicle (automobile) or aircraft was forced to collide with it to stop it. It is clear that such measures will inevitably result in runaway cars, damage to aircraft, and loss of life. The present invention changes the idea from such conventional means, actively introduces an intruding runaway vehicle or an overrunning aircraft into the stopping device, and utilizes the running inertia of the vehicle or aircraft to stop the stopping device. The object of the present invention is to provide a device that simultaneously moves and stops a motor vehicle or an airplane as if the brakes were suddenly applied.

(b) Regarding the structure of the invention The present invention has been provided with the above-mentioned objectives.Next, the structure will be explained with reference to the drawings which are embodiments.

Figure 1 shows the back and plane of the device of the present invention and the first
Each figure is an explanatory cross-sectional view taken along the Y-Y line in Figure B. The front rising part 4 is constituted by a plurality of extinguishing agent containing bags 1 arranged horizontally, and the bottom part 5 is constituted by a plurality of extinguishing agent containing bags 1 arranged vertically. The fire extinguishing agent containing bags 1 are connected to each other through a communication groove 8, and each of the extinguishing agent containing bags 2 is connected to the lowermost extinguishing agent enclosure through a communication groove 9. It communicates with bag 1. Therefore, the fire extinguishing agent containing bag 1 constituting the front rising portion 4 is in communication with the extinguishing agent containing bag 2 constituting the bottom portion 5. Incidentally, the rising part 4 and the bottom part 5 may constitute a plurality of extinguishing agent enclosing bags by two overlapping sheets 10 as in this embodiment,
Individually formed fire-extinguishing agent-containing bags may be placed on the sheet, and the method of construction is not limited.
The fire extinguishing agent containing bag 1 is made of a material that will burst due to a collision with a vehicle 6 or an aircraft 6' and the pressure of the inflow of the extinguishing agent 3 from the extinguishing agent containing bag 2.

Next, the main body configured in an L-shape has its front rising portion 4 attached to and supported on the outer surface of a flexible material structure 7 similarly configured in an L-shape, and its bottom portion 5 is placed and supported on its lower surface. Furthermore, the rising part 11 and the bottom part 1
Both the left and right sides of 2 are held by tension-resistant ropes 13.

The L-shaped flexible structure 7 shown in the drawings is composed of a rising part net 11 and a bottom part 12 in this embodiment as shown in FIG. It does not matter how it is done. In the figure, reference numeral 14 denotes bag supports that are attached to both left and right sides of the upright portion 4 to support the upright portion 4.

15 is its support.

The extinguishing agent 3 sealed in the extinguishing agent containing bags 1 and 2 is a fluid extinguishing agent 3 such as powder, liquid, or gas.

(c) Regarding the functions and effects of the invention The present invention has the above configuration, and the functions and effects thereof will be described next.

First, when attempting to stop a vehicle 6 using the device of the present invention, the device is installed at a construction site with the open portion 17 facing the direction in which the runaway vehicle 6 is expected to move. The distance between the work site and the place where this device is installed is sufficient if it is the distance at which you would slip when suddenly braking at the speed limit on the road at the work site, plus an expected safety distance of about 2 meters, but the site manager should be the safest distance. They should be installed at a distance that is assumed to be

Next, let's consider the case where the runaway car 6 rushes into the open part 17. If the front part of the vehicle 6 intrudes to the point where it collides with the front rising part 4, the entire body of the vehicle will naturally be located on the bottom part 5. In either the front wheel drive or rear wheel drive vehicle 6, the drive wheel 19 rests on the fire extinguishing agent bag 2 in the bottom part 5, and then the vehicle 6 collides with the fire extinguishing agent bag 1 in the front rising part 4, losing its entire weight. Fire extinguishing agent enclosing bag 2 and net 12 constituting the bottom part 5
This device is caused to slip forward by the running inertia of the vehicle 6 while being placed on the vehicle. (Figure 3 A, B, C,
See D, E, F. ) At this time, the extinguishing agent 3 in the extinguishing agent containing bag 2 on which the vehicle was placed was pushed forward and into the respective communication grooves 9,
8 and is press-fitted into the fire extinguishing agent containing bag 1, and the extinguishing agent containing bag 1, especially at the top of the front rising portion 4, expands so much that it ruptures, and the extinguishing agent 3 falls on the vehicle 6.
Therefore, if the vehicle 6 catches fire, it will serve to extinguish the fire. Furthermore, if the vehicle 6 collides with the front rising portion 4, the rising portion net 11
This causes the entire device to slip due to its running inertia as it bulges forward. Therefore, the rear end of the bottom net 12 is The part rolls up upwards, and both sides curve inward and rise up, wrapping around the wheels and slipping on the road.

As described above, when the vehicle 6 enters the device and the device slips on the road surface, the rotation of the drive wheels 19 stops and the vehicle 6 enters the same state as when the brakes are suddenly applied. That is, in this device, a force for slipping in the direction of arrow R acts on the drive wheel 19, whereas a force for rotating the drive wheel 19 in the direction of arrow S acts on the drive wheel 19.
The rotation of the vehicle 6 stops, and the vehicle 6 is in a state similar to that of applying sudden brakes, and the wheels 6 and the device slip together due to the running inertia of the wheels 6 (FIGS. 3E and F).

At this time, the friction area between the road surface and the bottom net 12 is
Since this is much larger than the friction area between the road surface and the tires when the vehicle 6 suddenly applies the brakes, the vehicle and the device will stop within a short slip distance. Furthermore, since the material of the net is flexible, the coefficient of friction is further increased, and the slip distance is shortened to stop the net. Moreover, since it is flexible, the bottom net 12 adapts to the unevenness of the road surface, and the coefficient of friction is not reduced by the unevenness of the road surface.

Next, when the vehicle slips, the left and right sides of the bottom net 12 roll up, and the fire extinguishing agent containing bag 2 in this area comes into contact with the outer surface of the wheel and applies a strong pressing force, thereby helping to stop the rotation of the wheel.

Next, if this device is installed in front of the runway of the airport, if the aircraft 6' overruns a predetermined position on the runway, it will rush into this device and the device will be activated by the inertia of the aircraft 6'. In other words, by eliminating the construction of the conventional mud pit 20 and water ditch 21 and providing a slip distance for the aircraft 6, damage to the aircraft 6' can be reduced and human lives can be saved. In particular, an aircraft 6' may cause a disaster if a fire breaks out, but there is an advantage in that when the extinguishing agent-containing bag 1 in the front upright section 4 ruptures, the extinguishing agent 3 is scattered, increasing the fire extinguishing effect.

As described above, the present invention allows the flexible structure to stop the vehicle 6 or the aircraft 6' under sudden braking due to a road slip, and furthermore, the wheels 6 and the aircraft 6' are loaded with a large amount of fuel, which may cause an accident. This has the great advantage that since a fire is expected to occur, it is possible to prevent this or minimize the fire by using the extinguishing agent 3.

[Brief explanation of the drawing]

The drawings are explanatory diagrams showing an embodiment of the device of the present invention in which an L-shaped flexible structure is used as a net, and FIG. 1A is a rear view and FIG. 1B is a plan view. C is an explanatory cross-sectional view taken along the Y-Y line in FIG. 1B. Figure 2 shows L configured in a net shape.
FIG. 2 is a perspective explanatory diagram of a letter-shaped flexible structure. FIG. 3 is an operational view of the present invention, where A is a side view when a vehicle starts to invade the device, and B is a side view when an aircraft starts to invade. C shows the moment when the wheels collided, D shows the moment when the aircraft collided with the rising part, and E and F are side views showing the extinguishing agent-containing bag bursting and slipping. FIG. 4 is an explanatory diagram of a conventional litter box that prevents aircraft from overrunning. 1... Extinguishing agent enclosing bag in the front rising section, 2... Extinguishing agent enclosing bag at the bottom, 3... Extinguishing agent, 4... Front rising section, 5... Bottom, 6... Vehicle, 6'... Aircraft , 7... L-shaped structure, 8... Communication groove, 9...
Communication groove.

Claims (1)

[Claims] 1 The main body consisting of the front rising part 4 and the bottom part 5 is configured in an L-shape with a plurality of extinguishing agent containing bags, respectively, and the fire extinguishing agent containing bag 1 and the bottom part 5 forming the front rising part 4 are configured. The extinguishing agent containing bag 1 in the front rising portion 4 is in communication with the extinguishing agent containing bag 2, and is particularly protected against impact by the vehicle 6 or aircraft 6' and the inflow pressure of the extinguishing agent 3 from the extinguishing agent containing bag 2. A stopping device for automobiles and aircraft, characterized in that it is configured to be breakable and has a flexible L-shaped structure 7 attached along the outside of the front rising part 4 and the lower surface of the bottom part 5.