JP2013111093A - Fire engine - Google Patents

Abstract

【Task】
Provide a fire engine capable of traveling even in a narrow alley while maintaining or increasing the capacity of a water tank. In the event of a disaster, a fire engine that can be used as a water truck is provided.
[Solution]
In the fire engine 1 having the cab 2, the chassis 3, and the water tank 4 mounted on the chassis 3, the water tank 4 is made of aluminum or an aluminum alloy, and the distance between the driver's cab 2 and the water tank 4. L2 is 50% or less of the length of the cab 2 in the traveling direction x of the fire engine 1.
[Selection] Figure 1

Description

  The present invention relates to a fire engine equipped with a water tank.

  Conventionally, a fire engine equipped with a water tank and a pump in a vehicle has been used in a field such as a fire (see, for example, Patent Document 1). FIG. 5 shows an example of a conventional fire engine. The fire engine 1 </ b> X includes a cab 2, a chassis 3, and a stainless steel water tank 4 </ b> X mounted on the chassis 3. Moreover, the fire engine 1 </ b> X has a pump 5 at the rear end of the chassis 3. Here, 6 indicates a front wheel, 7 indicates a rear wheel, L1 indicates the length of the cab 2 in the traveling direction x of the fire engine 1X, and L2X indicates the rear end of the cab 2 in the traveling direction x of the fire engine 1X. The length between the front ends of the water tank 4X is shown.

  The specific size of the fire engine 1X is, for example, the total length in the traveling direction x of the fire engine 1X is about 9.5 m, the length L1 of the cab 2 is about 2.0 m, and the distance between the cab 2 and the water tank 4X L2X is about 1.2 m, and the height of the ceiling of the cab 2 is about 3 m. Moreover, the capacity | capacitance of the water tank 4X is about 5000L-8000L.

  In addition, since the water tank 4X of the fire engine 1X is arranged close to the axle side (rear side of the vehicle) of the rear wheel 7, a gap of a distance L2X is generated between the cab 2 and the water tank 4X. This is to prevent the load of the stainless steel tank 4X, which is a super heavy object, from being applied too much to the axle of the front wheel 6 of the fire engine 1X. In general, vehicles such as trucks and trailers have a limit on the load applied to the axle of the front wheel, so the load is arranged at a position close to the axle of the rear wheel.

  This fire engine 1 </ b> X can move to the fire site with water or the like mounted thereon, and can discharge water from the water tank 4 </ b> X via the pump 5. Therefore, fire fighting activities can be performed even in a fire site where a water source or the like cannot be secured.

  However, the above-mentioned fire engine has several problems. 1stly, since the fire engine has the full length in the running direction x, it has the problem that the area to drive will be restricted. That is, a fire engine equipped with an amount of water (for example, about 8000 L) necessary for fire fighting activities is long and large, and cannot travel in a narrow alley. As a result, fire fighting activities may be hindered.

  On the other hand, it is conceivable to reduce the size of the vehicle in order to increase the movable area of the fire engine. However, when the vehicle is downsized, the water tank also becomes smaller and the problem arises that water for fire extinguishing cannot be transported sufficiently.

  Secondly, fire engines have the problem that it is difficult to increase the capacity of the water tank. This is because when the capacity of the water tank is increased, the wheel base of the vehicle (the length between the front wheel 6 and the rear wheel 7) becomes longer. That is, when the capacity of the water tank is increased, the load applied to the axle of the front wheel of the vehicle increases as the weight of the water tank increases. Therefore, in order to increase the capacity of the water tank, it is necessary to extend the entire length of the vehicle and move the mounting position of the water tank to the axle side of the rear wheel. From the above, the fire truck with the full length is further restricted in the area where it can travel and cannot approach the fire site. Specifically, when the capacity of the water tank is set to 8000L to 10000L or more, the fire engine must be a towing type like a tank lorry for oil transportation, and it becomes difficult to travel on a road other than the main road.

JP 2000-189536 A

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a fire engine that can travel even in a narrow alley or the like while maintaining or increasing the capacity of a water tank. Moreover, it is providing the fire engine which can be used as a water truck at the time of a disaster.

  A fire engine according to the present invention for achieving the above object is a fire engine having a cab, a chassis, and a water tank mounted on the chassis, wherein the water tank is made of aluminum or an aluminum alloy, The distance between the room and the water tank is 50% or less of the length of the cab in the traveling direction of the fire engine.

  With this configuration, it is possible to provide a fire engine that can travel even in a narrow alley while maintaining or increasing the capacity of the water tank. This makes it possible to place the water tank close to the axle of the front wheel of the fire engine by adopting a lightweight aluminum water tank. Therefore, the distance between the cab and the water tank in the traveling direction of the fire engine can be shortened, and the length of the entire vehicle (wheel base) can be shortened. As described above, even if a fire occurs in a narrow alley or the like, the fire engine can approach the fire site.

  In the fire engine, the distance between the driver's cab and the water tank is 20% or less of the length of the driver's cab in the traveling direction of the fire engine. With this configuration, the wheelbase of the fire engine can be further shortened.

  In the above-described fire engine, the water tank has a partition plate made of aluminum or an aluminum alloy therein, and the partition plate includes the front chamber and the rear side of the water tank in the traveling direction of the fire engine. A through hole is provided so as to be divided into a rear chamber and allows fluid to move between the front chamber and the rear chamber.

  With this configuration, the rigidity of the water tank can be improved and the capacity of the water tank can be increased. Moreover, the water etc. in a water tank can be discharge | released outside in a short time by the structure which made the inside of a water tank substantially one room via a through-hole. That is, it can have a sufficient function as a fire engine.

  In the above-described fire engine, the water tank is subjected to an inner surface treatment by any one of painting by spraying a paint, coating with a fluororesin, or a method of forming an anodized film. With this configuration, the corrosion resistance of the aluminum water tank can be improved. Therefore, in the event of a disaster, the fire engine can be used as a water supply vehicle.

  In the fire engine, the water tank has the partition plate and a sealing member, and the partition plate has an edge portion that is configured to be bent backward or forward in the traveling direction of the fire engine. And it is being fixed to the water tank via the edge, and the sealing member seals the space formed between the front side or the back side of the partition plate near the edge and the water tank. It is arranged as follows.

  With this configuration, the space formed between the curved portion of the partition plate and the inner wall of the water tank can be sealed, and the inner surface treatment such as painting inside the water tank can be finished uniformly and with high quality. Therefore, corrosion resistance can be improved even with an aluminum water tank. Moreover, a fire engine can be used as a water supply vehicle at the time of a disaster.

  According to the fire engine according to the present invention, it is possible to provide a fire engine that can travel even in a narrow alley or the like while maintaining or increasing the capacity of the water tank. Moreover, the fire engine which can be used as a water supply vehicle at the time of a disaster can be provided.

It is the side view which showed the fire engine of embodiment which concerns on this invention. It is the figure which showed the outline of the water tank of the fire engine of embodiment which concerns on this invention. It is the figure which showed the structure inside the water tank of the fire engine of different embodiment which concerns on this invention. It is the figure which showed the structure inside the water tank of the fire engine of different embodiment which concerns on this invention. It is the side view which showed the conventional fire engine.

  Hereinafter, a fire engine according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a fire engine 1 according to an embodiment of the present invention. The fire engine 1 has a cab 2, a chassis 3, and a water tank 4 mounted on the chassis 3. The water tank 4 is made of aluminum or an aluminum alloy. The fire engine 1 also has a pump 5 at the rear end of the chassis 3. Here, L1 indicates the length of the cab 2 in the traveling direction x of the fire engine 1, and L2 is the length between the rear end of the cab 2 and the front end of the water tank 4 in the traveling direction x of the fire engine 1. That is, the distance between the cab 2 and the water tank 4 is shown.

  Next, functions of the fire engine 1 will be described. In the fire engine 1, the water tank 4 is made of aluminum or an alloy thereof, so that the weight of the water tank 4 itself can be reduced. For example, a stainless steel tank having a volume of 10,000 L is about 2000 kg, whereas an aluminum tank is about 850 kg. With this configuration, even if the water tank 4 is arranged close to the cab 2 so that L2 is shortened, an excessive load is not generated on the axle of the front wheel 6 of the fire engine 1. Therefore, the distance L2 between the cab 2 and the water tank 4 that has conventionally been a useless space can be shortened, and the overall length of the fire engine 1 can be shortened.

  Specifically, the distance L2 between the cab 2 and the water tank 4 is 50% or less, preferably 20% or less, more preferably 10% or less of the length L1 of the cab 2 in the traveling direction x of the fire engine 1. It can be constituted so that. For example, if the length L1 of the cab 2 of the fire engine 1 is about 2.0 m as in the conventional example of FIG. 5, the total length in the traveling direction x of the fire engine 1 is about 8.3 m, the cab 2 and the water tank 4 The distance L2 between is about 0.3 m (15% of L1). Moreover, the capacity | capacitance of the water tank 4 can be about 8000L-10000L, desirably about 10000L-15000L.

With the above configuration, the following operational effects can be obtained. First, it is possible to provide a fire truck that can travel even in a narrow alley while maintaining or increasing the capacity of the water tank 4 of the fire truck 1. This is because the distance L2 between the cab 2 and the water tank 4 of the fire engine, which has been a wasteful space, can be shortened and the wheel base can be shortened. Specifically, as compared with the conventional fire engine shown in FIG. 5, the distance L2 between the cab 2 and the water tank 4 is shortened from about 1.2 m to 0.3 m, and the total length of the fire engine is about 9. 5m to about 8
. It can be shortened to 3 m.

  Secondly, the water tank 4 of the fire engine 1 can be easily enlarged. This is because even when the capacity of the water tank 4 is increased (for example, 8000 L or more), the amount of increase in the load applied to the axle of the front wheel 6 of the fire engine 1 is small, and it is not necessary to extend the wheel base. . From the above, the fire engine 1 can carry a large amount of water to the vicinity of the fire site.

  In FIG. 2, sectional drawing of the water tank 4 is shown. The left side of FIG. 2 shows a sectional view of the water tank 4 cut along the traveling direction x of the fire engine 1 and observed from the side, and the right side of FIG. 2 shows the front of the partition plate 10 fixed inside the water tank 4. The figure is shown. The partition plate 10 is made of aluminum or an aluminum alloy. Moreover, the partition plate 10 is installed so that the water tank 4 may be divided into a front chamber 11 on the front side and a rear chamber 12 on the rear side in the traveling direction x of the fire engine. Furthermore, the partition plate 10 has a through hole 13 so that a fluid such as water can move between the front chamber 11 and the rear chamber 12. In addition, the partition plate 10 is configured to have an elliptical shape similar to the cross-sectional shape of the water tank 4 in the yz plane, and its edge is bent and fixed to the water tank inner wall 41.

  With this configuration, the rigidity of the water tank 4 can be improved. Moreover, the structure which provided the through-hole 13 in the partition plate 10 can comprise the water tank 4 so that it may become one room substantially, improving the rigidity of the water tank 4. FIG. In particular, when used as a water tank for a fire engine, it is not desirable that the water tank 4 is divided into a plurality of independent rooms. This is because the fire engine 1 is required to have a function capable of discharging a large amount of water in a short time.

  In addition, although the cross section of the water tank 4 of yz plane is comprised so that it may become an ellipse, this invention is not limited to this structure. For example, the water tank 4 may have a rectangular cross section. Further, it is desirable that the inner surface of the water tank 4 is subjected to an inner surface treatment by either coating by spraying a paint, coating with a fluororesin, or a method of forming an anodized film. With this configuration, the corrosion resistance of the water tank 4 is improved, so that a fire engine can be used as a water supply vehicle during a disaster.

  Next, the water tank inner wall 41 of the water tank 4 and the joint portion 18 of the partition plate 10 will be described. In FIG. 3, the enlarged view of the Example from which the junction part 18 (refer FIG. 2) differs is shown. The water tank 4A has a partition plate 10 and a sealing member 16A. This partition plate 10 has an edge portion 14 formed by being bent rearward (right side in FIG. 3) or forward side (left side in FIG. 3) in the traveling direction of the fire engine. The edge portion 14 and the water tank inner wall 41 are fixed by welding of the welded portion 20.

  Further, the sealing member 16A is fixed by the welded portion 20 so as to seal the space R formed between the curved portion 15 of the partition plate 10 and the water tank inner wall 41. The sealing member 16A has an annular outer shape, and the cross section has a curved surface as shown in FIG.

  With this configuration, the inner surface treatment of the water tank 4 can be finished uniformly and with high quality. This is because the fine space R in which coating or the like becomes difficult can be filled with the sealing member 16A when performing coating or surface treatment.

  FIG. 4 shows a sealing member 16B of a different embodiment. The sealing member 16B is fixed by the welded portion 20 so as to seal the space R formed between the curved portion 15 of the partition plate 10 and the water tank inner wall 41. The sealing member 16B has an annular outer shape, and the cross section has a circular shape as shown in FIG. With this configuration, it is possible to obtain the same effects as those of the sealing member 16A described above.

In addition, the shape of sealing member 16A, 16B is not limited to the above-mentioned shape. Any shape that seals the space R where coating or the like cannot be achieved may be used. When the folding direction of the partition plate 10 is the front side (left side in FIG. 4) in the traveling direction of the fire engine, the sealing member 16 (16A or 16B) is behind the partition plate 10 (right side in FIG. 4). ) Will be fixed to the side.

  From the above, it is possible to provide a fire engine that can travel even in a narrow alley while maintaining or increasing the capacity of the water tank. In addition, you may form a water tank with glass fiber or carbon fiber instead of aluminum or an alloy of aluminum.

DESCRIPTION OF SYMBOLS 1 Fire engine 2 Driver's cab 3 Chassis 4, 4A, 4B Water tank 10 Partition plate 11 Front chamber 12 Rear chamber 13 Through-hole 14 Edge 16, 16A, 16B Sealing member L1 The length L2 of the cab in the advancing direction of a fire engine Distance R between driver's cab and water tank

Claims (5)

In a fire engine having a cab, a chassis, and a water tank mounted on the chassis,
The water tank is made of aluminum or an aluminum alloy, and the distance between the driver's cab and the water tank is 50% or less of the length of the driver's cab in the traveling direction of the fire engine. Automobile.   The fire engine according to claim 1, wherein a distance between the cab and the water tank is 20% or less of a length of the cab in the traveling direction of the fire engine. The water tank has a partition plate made of aluminum or an aluminum alloy inside,
The partition plate is installed so as to divide the water tank into a front chamber on the front side and a rear chamber on the rear side in the traveling direction of the fire engine, and enables movement of fluid between the front chamber and the rear chamber. The fire engine according to claim 1, further comprising a through hole.   The inner surface of the water tank is applied by any one of painting by spraying paint, coating with fluororesin, or a method of forming an anodized film. Fire engine according to item. The water tank has the partition plate and a sealing member,
The partition plate has an edge portion formed by bending rearward or forward in the traveling direction of the fire engine, and is fixed to the water tank via the edge portion,
The said sealing member is arrange | positioned so that the space formed between the front side or back side near the said edge part of the said partition plate and the said water tank may be sealed. Fire engine.

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