JP3172459B2 - Bridge for fire hose - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire hose bridge, and more particularly, to a fire hose that extends across a road during a fire fighting operation. The present invention relates to a fire hose bridge that allows passage.

[0002]

2. Description of the Related Art In order to prevent fire hoses extending across a road during a fire fighting operation from being crushed by various vehicles traveling on the road during the fire fighting operation, a fire hose is conventionally called a car bridge. Blocks are used. This car bridge for a fire hose is generally disclosed in Japanese Unexamined Patent Publication No.
As disclosed in Japanese Patent Publication No. 85032, a wedge-shaped block having an inclined surface and a horizontal top is opposed to each other back and forth at a predetermined interval, and a valley in which a fire hose can be inserted is formed between the opposed blocks. In use, a water supply hose expanded by water pressure is positioned between the valleys during use to prevent the fire hose from being crushed by passing various vehicles, such as automobiles, over the block.

[0003]

However, in the above-mentioned conventional bridge for a fire hose, since a block having an inclined surface and a horizontal top is formed as a single wedge-shaped unit, the slope angle from the road surface to the top is reduced. Inevitably, the tires are fired when the vehicle passes through the valley where the fire hose is located. When a hose comes into contact or the tires reach the valley of the bridge block, there is a potential danger that one block (on the vehicle side) will jump up.

[0004] In addition, in spite of the demand for quick water discharge first of all in firefighting activities, when a fire hose crosses the road, a bridge block is first laid on the road surface by predicting the position of the hose, Further, it is necessary to insert the fire hose from above into the valley of the bridge block, which hinders quick water discharge activity. Further, since a plurality of wedge-shaped blocks are integrally fixed on the base plate, the overall weight is heavy, and there is a problem that handling and laying work on a road are difficult.

[0005] The present invention is a lightweight and light-weight vehicle that can be quickly and accurately placed on a fire hose laid across a road, and that allows a vehicle to pass smoothly over the fire hose on the road. An object of the present invention is to provide a fire hose bridge that is easy to handle.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems by allowing a vehicle bridge to be laid over a fire hose extending across a road. That is, the fire hose bridge of the present invention comprises a central block and gradient blocks arranged side by side on the left and right sides of the central block, and the central block has a fire hose on a road surface penetrated on the lower surface thereof. A tunnel section having an arched cross section is provided between the front and rear end surfaces, and the gradient block is divided into front and rear gradient block bodies, and these front and rear gradient block bodies are joined at their upper surfaces to the left and right side end surfaces of the central block. to Yes in downward it is gradually inclined from the side end face in the length direction, at the front and rear opposite end faces of the longitudinal gradient block body with is provided with a number of through holes that penetrate the back and forth gradient block body over between the upper and lower surfaces ,one
Upwardly open engagement at the lower end of the slope block body
Provide a hook, and place it on top of the end face of the other gradient block.
The lower part of the outer peripheral wall formed thin by penetrating the through hole
By cutting off a certain height from the lower end face,
Front and rear gradient block body
Are configured to be detachably joined to each other, and
Opening upward at the lower part of the left and right end faces of the block
While the hook portion is provided over the entire length, the engaging hook portion
At the top of the side end face of the block
By cutting off the lower end of the wall on the side
And an engagement piece that engages with and disengages from the engagement hook portion .

Further, as described in claim 2, the central block may be divided into several blocks that can be joined to each other.

[0008]

[Function and Effect] The fire hose laid across the road during the fire fighting operation is covered with a central block from above, so that the fire hose penetrates the tunnel provided on the lower surface side of the central block. The center block can be quickly laid on the road surface, and the tunnel section has an arch shape in cross section with the front opening downward, so that even a large diameter fire hose can cover the fire hose. And can be reliably protected. The central block is provided at two locations in the longitudinal direction of the fire hose with an interval between the left and right wheels of the vehicle. After laying a pair of central blocks on the road surface in this way, gradient blocks are juxtaposed on both side end surfaces of these central blocks.

[0009] The gradient block is divided into a front and rear gradient block body and provided with a large number of through-holes penetrating between the upper and lower surfaces, so that it is lightweight and easy to handle, and the central block is handled independently. And can be quickly laid on the road surface, and its storage and transportation are also facilitated. In addition, an upwardly open engaging hook portion is provided at a lower portion of both left and right end surfaces of the central block over the entire length, and an upper side end surface of the front-rear gradient block body facing the engaging hook portion is provided on the side end surface side. The lower end of the wall
Since forming the engaging piece that engages and disengages the engaging hook by excising only be, the opposed end of the gradient block body for upward engaging hook portion of the central blocks laid on the road surface Simply by dropping from above, the engaging hooks and the engaging pieces are engaged with each other, so that the central block and the gradient block can be connected and integrated easily and accurately.

[0010] Similarly, easily and accurately joined together by the engagement hook portion and the engagement piece which is provided at its opposite end rather gradient block bodies back and forth, can be linked, therefore, divided in this way the central block Even if the vehicle runs on the bridge assembled from the gradient block body, the central block and the divided gradient block body are not separated, and a strong and stable bridge for vehicle passage can be formed, and the divided gradient block body Has a large number of through-holes penetrating between the upper and lower surfaces, so that the upper opening edge of the through-hole serves as a locking edge of the tire so that the vehicle can smoothly pass without slipping. Also, even if mud, dust, and rainwater enter the through-hole, the lower end of the through-hole is open, so that the block can be discharged onto a road surface and used after use. Also of cleaning it becomes easy.

Further, by dividing the central block into several blocks that can be joined to each other, the handleability and the laying work can be further improved.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, a specific embodiment of the present invention will be described. In FIGS. 1 to 3, a bridge for a fire hose comprises a central block 1 and a gradient block 2. The gradient block 2 is made of an aluminum alloy that is lightweight and has a high load bearing capacity. The central block 1 is formed in a flat rectangular shape that is long in the front-rear direction, the length in the front-rear direction is approximately 1 m, the width between the left and right end faces is 24 cm, the height is 12 cm, and the lower side is formed. The two tunnel sections 3, 3 having an arch-shaped cross section are covered with a fire hose H (shown in FIG. 4) on the road surface being penetrated.
Are provided in parallel with each other and penetrated between the front and rear end surfaces.
The height of these tunnels 3 and 14 is 14 cm and the width is 15 cm. The tunnels 3 and 3 are formed so as to cover the large-diameter fire hose H in a penetrating state. The fire hose H is disposed in a fixed state in the tunnel portions 3 in a state of being housed.

Further, as shown in FIG. 2, upwardly open engaging hooks 4, 4 are integrally provided at the lower portions of the left and right end faces of the central block 1 over the entire length thereof, and the central block 1 has a central portion. The upper wall portion 1a of the block 1 is provided with a plurality of through holes 5 penetrating into the tunnel portions 3 from the upper surface to the flat lower surface.

On the other hand, the gradient block 2 has the same length in the front-rear direction as that of the central block 1 and the length in the left-right direction of 1 m30 cm. The height of the side wall end surface facing the left and right side end surfaces is equal to the height of the central block 1, and the upper surface is formed as a gentle slope 2a gently inclined downward in the left-right length direction from the side wall end surface. This gradient block 2
Each of the divided gradient block bodies 2 ′ and 2 ′ has a rectangular through hole 6 having a size of 13 cm square penetrating from the gentle inclined surface 2 a toward the flat lower surface at small intervals in front, rear, left and right. A plurality of them are provided in a grid.

Further, on the opposite end faces of the divided gradient block bodies 2 ', 2' arranged side by side,
There is provided a connection structure that can removably connect 2 ′, 2 ′ in a joined state. This connecting structure is divided gradient block body 2 '
At the front and rear end faces, an engaging hook portion 7 which is opened upward at a certain interval on the left and right is protruded below one of the end faces, and the groove of the engaging hook portion 7 is formed on the other upper end face. 7a is formed with an engaging piece 8 that can be disengaged. As shown in FIG. 3, the engagement piece 8 is a divided gradient block body which is formed to be thin by penetrating the rectangular through hole 6.
It is formed by cutting off a lower portion of the outer peripheral wall of 2 ′ from the lower end surface by a certain height.

Also, as shown in FIG. 2, the lower end portion of the divided gradient block body 2 'joined to the left and right end surfaces of the central block 1 is cut off by a fixed height as shown in FIG. An engaging piece 9 that can be engaged with and disengaged from the groove 4a of the engaging hook portion 4 of the central block 1 is formed.

A brief description of the procedure for laying and using a fire hose bridge composed of the central block 1 and the gradient block 2 constructed as described above will be described. A fire engine is divided into a plurality of divided central blocks 1 based on a fire occurrence report. And the divided gradient block 2 ', and rush to the fire site,
The fire hose is quickly extended for fire extinguishing, and water discharge is started. The central block 1 and the divided gradient block 2 'may be transported by different work vehicles.

In the case where the fire hose H that has been pulled out crosses the road 10, the worker carries out the divided central block 1 and the divided gradient block 2 'constituting the fire hose bridge in a divided state onto the road 10, First, the central block 1 is placed on the fire hose H on the road 10 from above, and is installed on the road surface in a state in which a certain length of the fire hose H is stored in the arched tunnel section 3 in section. Subsequently, the divided gradient block body 2 ′ is installed on the road surface such that the side end on the thick side corresponds to the front half or the lower half of the side end surface of the central block 1. At this time, the engaging piece 9 formed on the side wall of the side surface of the divided gradient block body 2 ′ is aligned with the upper side of the engaging hook portion 4 projecting from the side end surface of the central block 1. Block
By dropping 2 ′, the engaging piece 9 of the divided gradient block 2 ′ is fitted into the groove 4a of the engaging hook portion 4 of the central block 1,
The central block 1 and the divided gradient block 2 'are inseparably connected in the left-right direction.

Similarly, the divided gradient block 2 'having the same structure is arranged in front of and behind the divided gradient block 2'.
Are laid on the road surface in a state where the lower portions of the engaging pieces 8 are fitted and locked in the grooves 7a of the opposing engaging hooks 7 so as to be inseparably connected to each other in the front-rear direction. By this connecting and assembling operation, as shown in FIG. 4, a bridge for a fire hose in which front and rear divided gradient block bodies 2 ', 2' are integrally joined to both end surfaces of the center block 1, respectively. Further, the fire hose bridge is laid on the road surface at an interval between the left and right wheels of the vehicle in the length direction of the fire hose H.

The bridge assembled in such a manner that the fire hose H is straddled in the running direction of the vehicle has a total length in the running direction of the vehicle of about 3 m, and a gradient block on both sides from the central block 1 having the highest height from the road surface. Fire fighting vehicles whose upper surface is gradually lowered toward the outer ends of the slopes 2 and 2, and the vehicle runs on the gentle slope 2 a from the lower slope end of the gentle slope 2 a of one of the slope blocks 2 and crosses the road 10. The vehicle travels as shown in FIG. 5 while passing over the central block 1 covering the hose H and descending on the gentle slope 2a of the other gradient block 2.

When the fire extinguishing operation is completed, the central block 1, the divided gradient block 2 ', and the engagement hooks 4, 8 that have connected the divided gradient block 2' to each other, and the engagement pieces 7,
9 to separate and remove from the road surface. Note that this separation operation can be easily performed only by lifting the divided gradient block body 2 ′ upward with respect to the central block 1.

FIG. 6 shows another embodiment of the present invention.
In the above embodiment, the central block 1 is divided into a plurality of parts in the front, rear, left and right (in the figure, six parts so as to have three rows each in the left and right directions), and the gradient block 2 is divided into three parts in the front and rear, and the front and rear divided gradient block body 2A And the central divided gradient block 2B, and the opposite side end faces of the front and rear divided gradient blocks 2A and 2A are detachably joined to both end surfaces of the front and rear divided blocks 1A and 1A of the central block 1, At the same time, the opposite side end faces of the center divided gradient block body 2B are detachably joined and connected to both side end faces of the center divided block body 1B.

Furthermore, tunnel sections 3 and 3 each having an arch-shaped cross section communicating with each other in the front-rear direction are formed in the center divided block bodies 1A and 1B arranged in three rows on the left and right sides, respectively. The structure of the tunnel portion 3 has the same structure as the above embodiment. In addition, the connection structure of the center divided block bodies 1A and 1B and the connection structure of the divided gradient block bodies 2A and 2B to the center divided block bodies 1A and 1B, and the connection structure of the divided gradient block bodies 2A and 2B are described above. As in the embodiment, it comprises an upward engaging hook portion provided on the opposite end surface thereof and an engaging piece detachably engaged with a groove of the upward engaging hook portion. As shown in FIG.
1A and 1B may be further divided into two in the length direction (the traveling direction of the vehicle).

According to the fire hose bridge constructed in this manner, the central block 1 and the gradient block 2 are finely divided into a plurality of parts, so that the weight is further reduced and the transportation and other handling properties are further improved. In addition, it is possible to provide a bridge in which the length in the vehicle direction is increased so that the inclined surface on the upper surface is more gradually inclined, and the vehicle can run more smoothly. In this embodiment, a plurality of through-holes 5 penetrating vertically through all the divided block bodies are also provided.
Is provided.

[Brief description of the drawings]

FIG. 1 is a plan view of a bridge that connects a central block and a gradient block,

FIG. 2 is a longitudinal front view thereof,

FIG. 3 is a longitudinal side view thereof,

FIG. 4 is a perspective view showing a use state,

FIG. 5 is a simplified front view of a state in which the vehicle is traveling.

FIG. 6 is a perspective view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Central block 2 Gradient block 2 'Split gradient block body 3 Tunnel part 4, 7 Engagement hook part 6 Through hole 8, 9 Engagement piece 10 Road H Fire hose

──────────────────────────────────────────────────続 き Continued on the front page (56) References Japanese Utility Model 6-53609 (JP, U) Japanese Utility Model 2-12596 (JP, U) Japanese Utility Model 5-61595 (JP, U) Japanese Utility Model 6-53 4108 (JP, U) JP 48-69536 (JP, U) JP 2-128754 (JP, U) JP 4-14158 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) A62C 33/06 E01C 9/08 F16L 57/00 E04G 27/00

Claims (2)

(57) [Claims] 1. A tunnel having an arch-shaped cross section, comprising a central block and gradient blocks arranged side by side on the left and right sides of the central block. The central block covers a lower surface of the central block with a fire hose on a road surface penetrated therethrough. A part is provided between the front and rear end faces, and the gradient block is divided into front and rear gradient block bodies, and these front and rear gradient block bodies are long from the side end face side where the upper surface is joined to the left and right side end faces of the central block. The front and rear gradient blocks are provided with a large number of through-holes extending between upper and lower surfaces, and the front and rear pairs of the front and rear gradient blocks are provided .
On the lower end of one slope block
Provide an engaging hook that opens in the
The through-hole is formed in the upper part of the end face of the
Cut off the lower part of the outer peripheral wall
By forming an engagement piece that engages with and disengages from the engagement hook portion,
It is configured to detachably attach the front and rear gradient block body
In addition, at the bottom of both left and right end faces of the central block
An upwardly opening engaging hook portion is provided over the entire length.
On the other hand, the above-mentioned front-rear gradient block facing the engaging hook portion
The lower end of the wall on the side edge of the body at a certain height above the side edge
Engaging and disengaging from the engaging hook portion by cutting only
A bridge for a fire hose characterized by forming a piece . 2. The fire hose bridge according to claim 1, wherein the central block is divided into several blocks that can be joined to each other.