Inundation protection sheet for vehicle

Abstract

To provide an inundation protection sheet for a vehicle capable of surely preventing inundation damage to the vehicle, excellent in economical efficiency and versatility, and easy and quick in installation work, in the inundation prevention sheet for the vehicle for wrapping up to a bottom portion of the vehicle and under an outer peripheral window.SOLUTION: A watertight sheet body 1 on which a tire 4 of a vehicle is mounted is subjected to processing of pleat parts 2 and 3 in a symmetrical projecting folded shape crossing in a cross shape to an approximately central portion in a longitudinal direction and a lateral direction, and is brought into close contact with a bottom portion of the vehicle 10 from the tire 4 of the vehicle 10 by rising water pressure, and is adapted to a flood water level, and suppresses inclination of the vehicle 10 up to a safe water level, and prevents inundation to the vehicle 10.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a vehicle flood prevention sheet that wraps around the bottom and under the outer peripheral windows of a vehicle to prevent it from being flooded when there is a risk of the vehicle being inundated or submerged due to floods, waterlogging, etc.

Background Art

[0002] In recent years in Japan, there has been a situation where flood and inundation damage beyond previous assumptions has continued to occur across the country, such as overtopping of levees due to typhoons, heavy rain, and torrential rain, and an increase in precipitation due to the development of locally rapid linear precipitation bands. The damage caused by flooding of vehicles due to such floods is serious. Inundation of a vehicle has a great impact on the interior of the vehicle, the engine compartment, the electrical control system, etc. The repair cost for restoration requires a large amount of money, and in most cases, the vehicle becomes a total loss. Therefore, there is a strong demand for technology to prevent inundation damage to vehicles. As things to prevent inundation and submersion of vehicles, inventions such as those in Patent Documents 1 to 4 have been made so far.

[0003] Patent Document 1 proposes a vehicle submersion prevention structure that fills a hollow wall portion with a fluid, surrounds the outer periphery to form a bag shape, and provides fixing means from four directions. Furthermore, in Patent Document 2, when the water level rises due to a flood or the like, a method has been proposed in which a vehicle wrapped in a sheet floats with the rise of the water level due to the buoyancy of the internal space, thereby reducing the damage of submersion. Also, in Patent Document 3, a means for preventing the submersion of a vehicle by completely wrapping the vehicle with a huge cylindrical sheet has been proposed.

[0004] On the other hand, in Patent Document 4, a vehicle waterproof cover that covers the lower part of the vehicle in a drawstring shape is configured such that when the vehicle floats in water, the parts other than the predetermined places of each surface placed in the water are substantially in close contact with the vehicle, and the part corresponding to the vehicle wheels on the bottom surface has a margin to protrude the wheels downward, generating the function of a stabilizer and improving the stability of the vehicle in a floating state in water.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, as described above, in Patent Document 1, even if it is excellent in the safety of vehicle flooding and drifting, for example, when the flooding water level in a flood is 30 cm to 40 cm above the ground surface, it will be related to a series of countermeasures. Therefore, until the implementation of flood countermeasures, there are problems in terms of the limited installation location, economy in terms of equipment installation costs, and versatility.

[0007] Similarly, in Patent Documents 2 and 3, as the water level rises, the vehicle is floated on the water to prevent flooding and submersion. However, due to the tire part of the vehicle and the uneven shape of the lower part of the vehicle, the risk of damage and breakage due to external water pressure on the seat becomes a problem. Furthermore, as time passes for the floating water level of the vehicle, due to the center of gravity of the vehicle, the vehicle tilts and sinks, and the risk of flooding the vehicle cannot be eliminated.

[0008] Furthermore, in Patent Document 3, the opening is closed and air is sealed into the cylindrical seat, and there is no escape space for the air. Therefore, when the water level rises, the cylindrical seat bulges, the surface is damaged by bursting or floating objects, and flooding into the cylindrical seat that wraps the vehicle is feared.

[0009] On the other hand, Patent Document 4 also states that the portion of the bottom surface of the vehicle waterproof cover corresponding to the vehicle wheels is configured to have a margin that allows the wheels to protrude downward. Specifically, it is the "bellows-like margin portion 30" shown in FIG. 9(A). However, with this configuration, it can only extend in one direction (the vehicle width direction in the drawing).

[0010] The present invention has been made in view of such circumstances, and is a vehicle waterproof sheet that wraps the bottom and outer periphery of the vehicle from the bottom to below the window with a sheet body, prevents the vehicle from being flooded as the flood water level rises, and further provides a buoyancy material in the sheet body portion corresponding directly below the center of gravity of the vehicle in the case of a further rise in the water level, so as to float the vehicle and prevent the interior, engine section, electrical control system, etc. of the vehicle from being flooded without tilting the vehicle by the vehicle weight until it reaches a safe water level.

Means for Solving the Problems

[0011] The first invention of the present invention that meets the above object is a vehicle waterproof sheet that wraps the bottom and outer periphery below the window of the vehicle with a sheet body to prevent the vehicle from being flooded, and the sheet body is characterized by having protruding folds (pleats) folded in the longitudinal and transverse directions of the vehicle. The second invention is a vehicle waterproof sheet that wraps the bottom and outer periphery below the window of the vehicle with a sheet body to prevent the vehicle from being flooded, and the sheet body or is characterized by having protruding folds (pleats) folded in the longitudinal and transverse directions of the vehicle. The third invention is a vehicle waterproof sheet according to the first or second invention, characterized in that a buoyancy material is interposed in the sheet body directly below the center of gravity position of the vehicle.

[0012] Here, in the vehicle waterproof sheet according to the first invention, the upper surface of the sheet body on which the vehicle is placed is provided with protruding folds folded so as to be positioned approximately at the center between the front and rear and between the left and right of the tires, and the sheet body is fixed to the ground contact surface at four locations of the tires that bear the vehicle weight. On the other hand, in the vehicle flood prevention seat according to the second invention, the upper surface of the seat body on which the vehicle is placed is provided with a folded ridge portion that protrudes and is folded so as to be positioned approximately at the center between the front and rear or left and right of the tire, wheel, caterpillar, etc. In this way, the seat body is fixed to the ground contact surface at four / two locations such as the tire and wheel.

[0013] Further, in the vehicle flood prevention seat according to the third invention, it is fixed to the ground contact surface at four locations of the tires that bear the weight of the placed vehicle, and a buoyancy material is interposed from the upper surface of the seat body to the portion corresponding directly below the center of gravity position of the vehicle.

Advantages of the Invention

[0014] The vehicle flood prevention seat according to the present invention has a folded shape that intersects in a cross shape, and the seat body is fixed to the ground contact surface at four locations of the tires that bear the weight of the vehicle. The four side ends of the seat body with the ridge portions provided approximately at the center between the front and rear and left and right of the tires reach the height below the window of the vehicle outer periphery. In the situation of rising water levels during floods and inundations, the ridge portion (the portion folded in a protruding shape) is opened by the water pressure flowing in from the outside of the seat body, and further, as the water level rises, the enclosed air under the seat body is discharged from the outer ridge portion of the seat body that reaches the height below the window of the vehicle. Also, first following the shape of the tire portion and then following the uneven shape of the vehicle bottom, the seat body adheres closely from the outer periphery of the vehicle tire to the vehicle bottom, avoiding the risk of damage and injury to the seat body, and ensuring the stability of the vehicle when it floats. Note that the ridge portion (the portion folded in a protruding shape) preferably has a folded shape that intersects in a cross shape, but it may also be only in one of the longitudinal direction or the lateral direction of the vehicle. This is because the enclosed air under the seat body can be discharged from the outer ridge portion of the seat body that reaches the height below the window of the vehicle (this is an extremely excellent effect of the present invention that cannot be achieved by the "bellows-shaped surplus portion 30" in the above Patent Document 4).

[0015] In addition, it is a sheet body having a folded portion processed in a shape that symmetrically folds in a protruding shape along the center line in the longitudinal direction of the above-mentioned sheet body. By wrapping it up to a height of about 1 / 2 of the vehicle height, it is possible to expect effects as countermeasures against flooding and submersion in two-track caterpillar vehicles such as crawler-type construction machines and agricultural machines, and also in electric train vehicles and Shinkansen vehicles.

[0016] The flood prevention sheet for vehicles according to the present invention reaches below the outer peripheral window of the vehicle. Therefore, by providing means for closely fixing with flat magnets at the four sides of the end where the sheet body is fixedly supported by suspension, it serves as an auxiliary for suspension fixing with a belt. Also, when installing a buffer material for preventing breakage and damage to the vehicle outer periphery, it can be easily removed, enabling rapid installation work of the sheet body.

[0017] The flood prevention sheet for vehicles according to the present invention includes a plurality of folded portions (pleated portions) folded in a protruding shape in the longitudinal direction of the vehicle, wraps below a plurality of outer peripheral windows of the vehicle, and constitutes a sheet body provided with fixing means such as a buffer material between the vehicles. Thus, it is possible to realize flood prevention countermeasures for multiple vehicles with a single flood prevention sheet for vehicles, enabling excellent utilization in terms of efficiency and economy in a small space.

[0018] It is preferable to use a sheet body having watertightness for the flood prevention sheet for vehicles according to the present invention. For example, it is possible to substitute with an agricultural greenhouse covering sheet, a commercially available blue sheet, etc. that ensure watertightness and longitudinal and lateral dimensions.

[0019] The flood prevention sheet for vehicles according to the present invention has a buoyancy material interposed from the upper surface of the sheet body to the portion corresponding directly below the vehicle center of gravity position. Due to the water pressure flowing in from below the sheet body, the sheet body and the buoyancy material closely adhere and rise, and in the situation of further water level rise, the buoyancy material and the vehicle lower part are closely adhered, enabling effective transmission of buoyancy to the vehicle body.

[0020] The vehicle flood prevention seat according to the present invention can cope with the situation of rising water level from the initial stage of flood and inundation to the vehicle inclination in the direction of the vehicle's center of gravity due to the passage of time after the vehicle floats, and can be installed by a minimum number of personnel regardless of the installation location.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5-1

Figure 5-2

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0022] Hereinafter, embodiments of the present invention will be described with reference to the drawings for the purpose of understanding the present invention. FIG. 1 is a plan view of a folded portion 2 that is symmetrically and protrudingly folded along the center line in the longitudinal direction of the vehicle that is continuous from one end portion 21 to the other end portion 21 in a sheet body 1 having watertightness. Further, on the right side of the plan view, an enlarged end view 22 of the folded portion 2 that is symmetrically and protrudingly folded along the center line in the longitudinal direction is shown. Furthermore, FIG. 1 is also a plan view of the folded portion 3 that is symmetrically and protrudingly folded along the center line in the lateral direction of the vehicle, which is continuous from one end portion 31 to the other end portion 31 in the sheet body 1 having watertightness. Below the plan view, an enlarged end view 32 of the folded portion 3 that is symmetrically and protrudingly folded along the center line in the lateral direction is illustrated. Therefore, in FIG. 1, the folded portions 2 and 3 are formed in a cross shape on the sheet body 1. Also, FIG. 1 is also a view showing a state in which the tire 4 is placed on the upper surface of the sheet body 1 and the buoyancy material 20 is interposed directly below the center of gravity position of the vehicle 10.

[0023] The dimensions 11 of the folded portions 2 and 3, which are symmetrically and protrudingly folded along the center lines in the longitudinal and lateral directions of the sheet body 1 described above, are set to be equal to or greater than the radius of the tire 4 of the vehicle 10. Although the dimensions are slightly larger, the sag of the watertight sheet body 1 that bears the water pressure will act on the safe side.

[0024] The upper view of FIG. 2 shows the side of the vehicle 10 in a state where the watertight sheet body 1 wraps around the bottom and under the outer peripheral window of the vehicle 10, both end portions 31 of the folded portion 3 reach the height under the window, and are tightly fixed with the flat magnet 5 and suspended and fixed and supported with the belt 6, indicating the completion of the installation work. The lower view of FIG. 2 shows the front of the vehicle 10 in a state where the end portion 21 of the folded portion 2 reaches the height under the window, and is tightly fixed with the flat magnet 5 and suspended and fixed and supported with the belt 6, indicating the completion of the installation work. The belt 6 for suspending and fixing the watertight sheet body 1 is adjustable in length, and is provided with a fastener (for example, a clip-shaped one) at the tip to hold and fix the sheet body 1 that reaches the height under the window. Also, by closely supporting (temporarily fixing) the four peripheral edges of the sheet body 1 with the flat magnet 5, the attachment work of the belt 6 becomes easier. Also, FIG. 2 is also a view showing the state of placing the buoyancy material 20 directly below the center of gravity position of the vehicle 10 inside the watertight sheet body 1.

[0025] At the ends 21 and 31 reaching the window height, in the front-rear, left-right side surface directions of the vehicle 10 and at each corner, in order to prevent impact breakage loss during the outflow of the main body when the vehicle 10 floats and damage to the vehicle body by floating objects, it is possible to insert a buffer material between the belts 6 for suspending and fixing the ends of the watertight sheet body 1.

[0026] Figure 3 shows the situation 13 of the crown water level where the water crest reaches the height of the central part of the tire 4. Here, by forming the fold part 2 that is folded in a protruding shape symmetrically with respect to the center line in the longitudinal direction of the sheet body 1 and the fold part 3 that is folded in a protruding shape symmetrically with respect to the center line in the short direction (intersecting in a cross shape), due to water pressure, the central part with a shape of symmetrically folding the center line that intersects and is continuous in a cross shape in a protruding manner becomes a storage place for enclosed air (escaped air), and the fold parts 2 and 3 that are folded in a protruding shape are opened by the air accumulated in the storage place receiving the water pressure and the water pressure. The enclosed air in the internal space of the watertight sheet body 1 is discharged from above inside the ends 21 and 31 of the upper watertight sheet body 1 (vehicle side) as the water pressure rises. The enclosed air outside the watertight sheet body 1 (underside of the sheet) is discharged to the outside of the sheet body 1 either through the fold part 2 (front-rear) or the fold part 3 (left-right).

[0027] Figure 4 shows the crown water situation 13 where the water crest reaches the upper height of the tire 4. The vehicle immersion prevention sheet with the buoyancy material 20 interposed floats with the watertight sheet body 1 and the buoyancy material 20 being in close contact due to the water pressure of the rising water level. Further, the buoyancy material 20 is brought into close contact directly below the center of gravity position of the vehicle 10 to transmit buoyancy to the vehicle 10. The vehicle maintains a floating state and suppresses the inclination of the vehicle 10 in the direction of the center of gravity up to the safe water level.

[0028] Figure 5-1 shows the shape of the buoyancy material 20 as an inverted frustum shape such as an inverted quadrangular frustum shape or an inverted conical frustum shape (an example). Thereby, due to the water pressure rising from the outside (lower part) of the watertight sheet body 1, it rises directly below the center of gravity position of the vehicle 10, making it easy to fix it in close contact with the lower part of the vehicle. The material may be a foam molding material or a fluid injection type using a molded air mat.

[0029] Figure 5-2 illustrates the advantages of the buoyancy material 20 having an inverted frustum shape. As shown in Fig. 5-2(a), since the buoyancy material 20 has an inverted frustum shape, the watertight sheet body 1 can be in close contact with the buoyancy material 20 and the bottom surface of the vehicle 10 without any gaps. However, in the case of a frustum-shaped buoyancy material 25 as shown in Fig. 5-2(b), a gap (dead space 28) will occur between the watertight sheet body 1, the buoyancy material 25, and the bottom surface of the vehicle 10. Therefore, since the shape of the buoyancy material 20 is an inverted frustum as shown in Fig. 5-1, the watertight sheet body 1 can be securely fixed in close contact with the lower part of the vehicle. Also, the buoyancy generated thereby becomes stable for the vehicle 10.

[0030] Note that the vehicle 10 that bears buoyancy due to water pressure requires countermeasures such as tying it to a strong support column etc. from the perspective of preventing outflow and drifting.

[0031] Finally, the sheet body 1 will be described with reference to Figs. 6 and 7. As shown in Fig. 6, the sheet body 1 is manufactured in the following manner (an example). (1) A double-folded portion is provided in parallel at the center in the short side direction of the sheet body 1 to form a pleat portion 3 ((a) - (b)). (2) A double-folded portion is provided in parallel at the center in the long side direction of the sheet body 1 to form a pleat portion 2 ((b) - (c)). Note that the order of (1) and (2) may be reversed. (3) The edge in the long side direction of the sheet body 1 is bent ((c)). (4) The edge in the short side direction of the sheet body 1 is bent ((d)). Note that the order of (3) and (4) may be reversed. (5) The flat sheet body 1 before use is completed ((e)).

[0032] The sheet body 1 (Fig. 7(a)) manufactured in Fig. 6 is arranged on the bottom side of a vehicle (not shown). Due to the air that escapes by water pressure, as shown in Fig. 7(b), the central parts of the intersecting fold parts 2 and 3 bulge and protrude in a cross shape. As a result, it is possible to bring the sheet body 1 into close contact with the bottom surface of the vehicle from the central part while avoiding the tire (so that the tire does not become an obstacle), and the fixed position of the vehicle within the sheet body 1 becomes stable. In the "bellows-like surplus part 30" of Cited Document 4, only linear protrusions in the longitudinal direction or the lateral direction can be formed (in a bellows, simultaneous expansion in two directions is impossible), and the fixed position of the vehicle within the waterproof cover is not stable (there is a risk that the vehicle may slide).

Industrial Applicability

[0033] The present invention has economy, versatility, and speed as countermeasures for preventing waterlogging damage to vehicles caused by increasingly severe floods and waterlogging, and can be widely used as a countermeasure for preventing waterlogging of vehicles.

Explanation of Signs

[0034] 1 Sheet body 2 Fold part 21 Folded end in the longitudinal direction of the sheet body (vehicle) 22 Enlarged cross-sectional view in the longitudinal direction of the sheet body (vehicle) 3 Fold part 31 Folded end in the lateral direction of the sheet body (vehicle) 32 Enlarged cross-sectional view in the lateral direction of the sheet body (vehicle) 4 Tire 5 Flat magnet for close contact and fixing support of the sheet body end 6 Fixed suspension belt for the sheet body end 10 Vehicle 11 Folding dimension of the sheet body (fold part) 12 Ground surface 13 Waterlogging level 20 Buoyancy material (inverted frustum) 25 Buoyancy material (frustum) 28 Gap (dead space)

Claims

1. A water ingress prevention sheet for a vehicle that covers the bottom of the vehicle and the bottom of the outer window with a sheet body to prevent water from ingressing into the vehicle, The water-proof sheet for a vehicle is characterized in that the sheet body has pleats (folds) that are folded in a protruding manner in the longitudinal and lateral directions of the vehicle.

2. A water ingress prevention sheet for a vehicle that covers the bottom of the vehicle and the bottom of the outer window with a sheet body to prevent water from ingressing into the vehicle, A water-proof sheet for a vehicle, characterized in that the sheet body has pleats (pleats) that are folded in a protruding shape in the longitudinal or lateral direction of the vehicle.

3. 3. A water-proof sheet for vehicles according to claim 1 or 2, wherein the sheet body has a buoyancy material disposed immediately below the center of gravity of the vehicle.

Images