JP7763482B2 - Fire extinguishing slide shutter - Google Patents

Description

The present invention relates to a fire-extinguishing slide shutter, a device for quickly extinguishing fires in buildings, forests, etc.

Traditionally, when a fire breaks out in a building or forest, attempts are made to extinguish the fire by spraying water or fire extinguishing agents using fire extinguishing equipment such as fire trucks.

When a fire breaks out, it is necessary for fire engines and other fire extinguishing equipment to arrive at the scene quickly, but conventional fire extinguishing methods can take time to extinguish the fire.

In particular, in areas far from fire stations, areas with poor road infrastructure, or residential areas with adjacent buildings, there are concerns that fire engines may be delayed due to road width or congestion, and even if they arrive in time, there is a risk that the water spray will affect nearby homes (causing water damage). Furthermore, large amounts of water and fire extinguishing agents are required to extinguish the fire.

In addition, while there is no need to worry about the impact on neighboring areas in mountain forests, there are cases where there is no water source nearby, making it difficult to carry out firefighting activities smoothly.

Fire shutters are known for their use in fire and flame prevention, such as the invention described in JP 4-51969 A (Patent Document 1), which are used to prevent the spread of fire in buildings and other structures. However, these shutters can only be used in locations where they have been installed in advance, and they only serve to separate the area where the fire has started from other areas, preventing flames and smoke from reaching them, so their effectiveness is limited.

Japanese Patent Application Publication No. 4-51969

The objective of the present invention is to provide a new fire extinguishing device that can achieve rapid fire extinguishing, eliminate impact on neighboring areas, and is independent of water or fire extinguishing agents.

The present invention, which was made to solve the above-mentioned problems, is a fire extinguishing sliding shutter in which multiple frame bodies stored in a nested state slide out sequentially from above to below a burning object to surround the object, and a ceiling plate is attached to the innermost or outermost frame body to isolate the object from outside air and extinguish the fire. The shutter has a hanging device that suspends the frame bodies or the ceiling plate from above, a holding mechanism that holds the multiple frame bodies in a nested state before deployment, and a connecting structure formed between the mutually contacting side surfaces of adjacent frame bodies, and is characterized in that the connecting structure allows the multiple frame bodies to slide vertically while still connected, and that releasing the holding mechanism allows the multiple frame bodies to slide out downward while still connected.

According to the present invention, the surrounding area of the burning object is obscured by the deployed frame and ceiling panels, and the internal space containing the object is isolated from the outside air, cutting off the supply of oxygen and enabling the fire to be extinguished quickly, without affecting the surrounding area, and without using water or fire extinguishing agents.

Furthermore, if the holding mechanism comprises a string-like traction device attached to the outermost or innermost frame body, and the multiple frame bodies are stored in a nested state by pulling the traction device upward, and the multiple frame bodies slide out downward in a connected state by releasing the traction device, the holding mechanism can be configured with an extremely simple and solid structure that does not require an internal power source, and it is also easy to return the multiple frame bodies to their nested state after use.

Furthermore, if the ceiling panel is provided with an attachment port for a device that releases fire-extinguishing material from above the object, it will be possible to extinguish the fire using fire-extinguishing materials such as water or fire extinguishing agents, allowing for faster and safer fire extinguishing in environments where these materials are available.

Furthermore, when the connecting structure comprises an elongated hole formed in one of the adjacent side surfaces and extending in the sliding direction, a fixing hole formed in the opposing position on the other side surface, and a connector having large-diameter heads on both ends of its shaft, the elongated hole having a narrow elongated hole portion and a wide elongated hole portion due to a step formed on its inner surface, and the fixing hole having a small-diameter hole portion and a large-diameter hole portion due to a step formed on its inner surface, the shaft of the connector is inserted through the narrow elongated hole portion of the elongated hole and the small-diameter hole portion of the fixing hole, and the head portion is housed in the wide elongated hole portion and the large-diameter hole portion, respectively, and the head portion housed in the wide elongated hole portion can slide within the wide elongated hole portion, thereby connecting adjacent frames to each other so that they can slide up and down a predetermined distance, it becomes possible to construct a connecting structure with an extremely simple and reliable structure that does not require a power source, etc.

Alternatively, the connecting structure may have a locking mechanism that restricts the sliding return and can maintain the extended state of the frame body after it has slid open. The connecting structure includes a long hole extending in the sliding direction formed on one of the side surfaces that contact each other, a fixing hole formed at an opposing position on the other side surface, and a connector having large-diameter heads on both ends of its shaft. The long hole has a narrow long hole portion and a wide long hole portion due to a step formed on its inner circumferential surface, and the fixing hole has a small-diameter hole portion and a large-diameter hole portion due to a step formed on its inner circumferential surface. The shaft of the connector is inserted through the narrow long hole portion of the long hole and the small-diameter hole portion of the fixing hole, and the head portion is housed in the wide long hole portion and the large-diameter hole portion, respectively. The head portion housed in the wide long hole portion can slide within the wide long hole portion. Furthermore, a lock is provided at the opposing position of the shaft of the connector. The narrow elongated hole has a rotating section with an expanded hole width at the sliding direction end. The inner surface of the rotating section on the sliding direction side has a guide surface that rotates the shaft when it comes into contact with it, and the inner surface of the rotating section on the opposite side of the sliding direction has a locking step that engages with the locking protrusion of the rotated shaft to prevent the sliding from returning. When maintaining the extended state of the frame with the sliding completed, the connecting structure is constructed with an extremely simple and reliable structure that does not require a power source, and the locking mechanism allows the frame to independently maintain its expanded state. This allows for quick removal of the area after installation, particularly at fire scenes containing flammable substances, chemicals, and other hazardous materials and where there is a risk of explosion or toxic gases, ensuring safety while extinguishing the fire.

Furthermore, if the lower end of the frame located at the outermost or innermost position is shaped like a non-flammable flexible mop, the non-flammable flexible mop-shaped member will come into contact with the ground when deployed, providing a cushioning effect and increasing adhesion.

Furthermore, if a sheet-shaped non-combustible cover is provided with at least one end fixed to the ceiling panel or the frame body, and the non-combustible cover spreads downward as the frame body unfolds, covering the connecting mechanism formed on the multiple frame bodies from the outside, even if there is a gap in the connecting mechanism, the non-combustible cover can be used to fill the gap and block the supply of outside air.

In addition, if a cylindrical non-combustible cover is provided with at least one end fixed to the ceiling panel or the frame body, and the non-combustible cover spreads downward as the frame body unfolds to surround the multiple frame bodies, the cylindrical non-combustible cover in addition to the frame body can provide double coverage around the object and block it from the outside air, making it possible to more reliably extinguish the fire on the object.

Furthermore, if the lifting device is connected to a transport means, it is possible to transport the fire extinguishing sliding shutter of the present invention above a burning object using a transport means such as a helicopter or crane truck, and use it there.

This invention makes it possible to extinguish a burning object quickly, without affecting the surrounding area, and without using water or fire extinguishing agents.

1 is a perspective view showing a first embodiment of the present invention; FIG. 2 is a plan view showing the embodiment shown in FIG. 1; FIG. 2 is a front view showing the embodiment shown in FIG. 1; FIG. 2 is a perspective view showing one of the frames in the embodiment shown in FIG. 1 . FIG. 2 is a perspective view showing a deployed state of a frame body in the embodiment shown in FIG. 1 . FIG. 4 is an enlarged cross-sectional view of a portion taken along line AA in FIG. 3. FIG. 4 is an enlarged cross-sectional view of the part taken along the line BB in FIG. 3. 2A is an exploded perspective view showing a connector constituting the connecting structure in the embodiment shown in FIG. 1 , and FIG. 2B is a perspective view showing an assembled state. FIG. 2 is a perspective view showing a state in which the embodiment shown in FIG. 1 is used. 2A and 2B are explanatory views showing the state of transportation of the embodiment shown in FIG. 1, in which FIG. 2A shows the state of transportation by helicopter, and FIG. 2B shows the state of transportation by crane truck. FIG. 10 is a perspective view showing a second embodiment of the present invention in which a relay tool is added. FIG. 12 is a perspective view of the embodiment shown in FIG. 11 after the frame body is deployed. FIG. 10 is a perspective view showing a third embodiment of the present invention using a square frame body. FIG. 14 is a perspective view showing the state in which the embodiment shown in FIG. 13 is used. FIG. 10 is a perspective view showing the expanded state of a frame body according to a fourth embodiment of the present invention, which uses a connecting structure with a locking mechanism. 16A and 16B are exploded and assembled perspective views showing a connector constituting the connecting structure in the embodiment shown in FIG. 15 ; 16 is a partially enlarged view showing the elongated holes and fixing holes that constitute the connecting structure in the embodiment shown in FIG. 15. FIG. 16 is an explanatory diagram showing how the frame body whose sliding has been completed is locked by the locking mechanism in the embodiment shown in FIG. 15 . FIG. 10 is a perspective view showing a fifth embodiment of the present invention, which includes a sheet-like non-combustible cover, a non-combustible soft mop-like buffer member, and an attachment port for a fire-extinguishing substance discharge device. FIG. 20 is a perspective view showing the state in which the embodiment shown in FIG. 19 is used. FIG. 20 is a cross-sectional view showing the state in which the embodiment shown in FIG. 19 is used. FIG. 10 is a perspective view showing a sixth embodiment of the present invention in which an auxiliary frame is added. FIG. 13 is a perspective view showing a seventh embodiment of the present invention using a cylindrical non-combustible cover.

Preferred embodiments of the present invention will now be described with reference to the drawings. Note that the embodiments shown in this specification are merely examples, and the present invention should not be construed as being limited to these embodiments.

Figures 1 to 10 show a first embodiment of the fire extinguishing slide shutter of the present invention.

As shown in these figures, the fire extinguishing sliding shutter 1 is a device for quickly extinguishing a fire in a building or the like. It comprises multiple frame bodies 10A that are stored in a nested state and can be slid open and unfolded, a ceiling panel 20A attached to the innermost frame body 10j of the frame bodies 10A, a hanging device 30 that suspends the innermost frame body 10j or the ceiling panel 20A from above, a traction device 40 that is a holding mechanism that holds the frame bodies 10A in a nested state, and a connecting structure 50A formed between the mutually contacting side surfaces of adjacent frame bodies 10A.

Each of the frame bodies 10A is manufactured by combining plate-like bodies, and has a rectangular shape in plan view, with two pairs of four flat plate sections 11 facing each other and adjacent sides of each flat plate section 11 connected so that each corner 12 forms a right angle. The frame body is made of a flame-retardant, lightweight material such as metal (see Figure 4).

Depending on the size of the frame, it may be manufactured by integral molding rather than by combining plate-shaped bodies (not shown).

The frame bodies are of different sizes so that they can be stored in a nested state, and when nested, the first frame body 10a, second frame body 10b, third frame body 10c, etc., which are connected from the outside to the inside, have gradually smaller widths and heights. In this embodiment, ten frame bodies are used as the number of the multiple frame bodies 10A, but this number can be increased or decreased to any number greater than two.

The ceiling panel 20A is manufactured by combining plate-like bodies and consists of a horizontal section 21 and inclined sections 22 arranged on all four sides of the horizontal section 21, forming a quadrangular pyramid shape.

Note that the ceiling panel 20A is most preferably shaped like a quadrangular pyramid, as this improves strength and increases internal volume, but other shapes are also possible (not shown).

The suspending device 30 can be a string-like member such as a wire. By holding the ceiling panel 20A in a fixed position with the suspending device 30, the multiple frame bodies 10A can be slid open and unfolded.

Attachments 31 to which the hoisting device 30 can be attached are installed at the four corners of the horizontal section 21 of the ceiling panel 20A. By connecting one end of the hoisting device 30 to a transportation means 90, such as a helicopter or crane, and attaching the other end to the attachment 31, the fire extinguishing slide shutter 1 can be transported and used.

The holding mechanism consists of string-like traction devices 40 attached to the four corners of the outermost frame body 10a. By pulling the traction devices 40 upward, the multiple frame bodies 10A become nested within each other, and by releasing the traction devices 40, the multiple frame bodies 10A slide downward while still connected.

In this way, using a string-like traction device makes it possible to construct a holding mechanism with a very simple and reliable structure that does not require an internal power source, and it also makes it easy to return the multiple frame bodies 10A to their nested state after use.

The connecting structure 50A consists of a long hole 60A formed in the side of one of the adjacent frame bodies extending in the sliding direction, a fixing hole 70 formed in the opposing position on the side of the other frame body, and a connector 80A having large-diameter heads 82, 85 on both ends of a shaft 83.

That is, when the long hole 60A is formed in the first frame body 10a located on the outside of the two adjacent frame bodies, the fixing hole 70 is formed in the second frame body 10b located on the inside at a position opposite the long hole 60A.

At the same time, when a long hole 60A is formed on the surface of the second frame body 10b opposite and spaced from the fixing hole 70, a fixing hole 70 is formed in the vicinity of the long hole 60A on the third frame body 10c, which is positioned further inward than the second frame body 10b.

The elongated hole 60A that constitutes the connecting structure 50A is formed as a two-stage elongated hole having a narrow elongated hole portion 61 that opens to the opposing surface between the frame bodies, a wide elongated hole portion 62 that is wider than the narrow elongated hole portion 61 and is connected to the narrow elongated hole portion 61 in the thickness direction, and a step portion 63 located between the narrow elongated hole portion 61 and the wide elongated hole portion 62.

The fixing hole 70 that constitutes the connecting structure 50A is formed as a two-stage circular hole having a small diameter hole portion 71 that opens to the opposing surface between the frame bodies, a large diameter hole portion 72 that is wider than the small diameter hole portion 71 and is connected to the small diameter hole portion 71 in the thickness direction, and a step portion 73 located between the small diameter hole portion 71 and the large diameter hole portion 72.

The width of the narrow elongated hole portion 61 of the elongated hole 60A and the width of the small diameter hole portion 71 of the fixing hole 70 are formed to be approximately the same width.

The connector 80A that constitutes the connecting structure 50A has an I-shaped cross section and includes a cylindrical shaft 83 and large-diameter, disk-shaped heads 82 and 85 located at both ends of the shaft 83.

The shaft 83 of the connector 80A is inserted through the narrow elongated hole portion 61 of the elongated hole 60A and the small diameter hole portion 71 of the fixing hole 70, while the heads 82, 85 are housed in the wide elongated hole portion 62 and the large diameter hole portion 72, respectively. The head 82 housed in the wide elongated hole portion 62 can slide within the wide elongated hole portion 62, connecting adjacent frames to each other in a slidable manner in the vertical direction by a predetermined distance. This makes it possible to construct a connecting structure with an extremely simple and reliable structure that does not require a power source or the like (see Figures 6 and 7).

To attach the connector 80A constituting the connecting structure 50A to the fixing hole 70 and the elongated hole 60A, one head 85 is removed from the shaft 83, the shaft 83 is inserted into the fixing hole 70 and the elongated hole 60A, and the removed head 85 is then reattached. As shown in the exploded perspective view of Figure 8(a), the connector 80A in this embodiment is composed of a convex part 81 with a shaft 83 protruding from one head 82, a concave part 84 with a fitting hole 86 formed in the other head 85, and a fixing screw 87 that secures the convex part 81 and the concave part 84 in an interlocked state.

The connector in this embodiment may be configured as a convex part with a shaft having a male thread protruding from one head and a concave part with a female thread formed in the other head (not shown), or as a three-piece structure with two heads and one shaft made of separate parts (not shown), or may be formed using other conventionally known configurations, but it is desirable for the structure to be resistant to disassembly or damage due to heat or impact.

In this embodiment, the connecting structures 50A are formed one on each side of the frame body (a total of four), but this is not limited to this and the number can be increased or decreased as appropriate depending on the desired size and strength. For example, if you want to make it stronger in case of a malfunction, you can increase the number of connecting structures (not shown).

The elongated holes 60A and the fixing holes 70 are formed alternately between adjacent frame bodies as the frame bodies are connected from the outside to the inside of the first frame body 10a, second frame body 10b, third frame body 10c, etc. The connecting structure 50A is formed by inserting and fastening the connecting device 80A while the elongated holes 60A and the fixing holes 70 are connected together. This connecting structure 50A is formed repeatedly in sequence on each frame body, so that all of the frame bodies 10A that make up the fire extinguishing sliding shutter 1 are slidably connected.

Furthermore, the heads 82, 85 of the connector 80A inserted between the elongated hole 60A and the fixing hole 70 are housed within the wide elongated hole portion 61 of the elongated hole 60A and the large diameter hole portion 71 of the fixing hole 70, so they do not interfere with the sliding movement of adjacent frames relative to each other.

In this way, the multiple frame bodies 10A in the fire extinguishing sliding shutter 1 of this embodiment can be easily and reliably extended by sliding the overlapping frame bodies up and down thanks to the connecting structure 50A consisting of the elongated holes 60A, the fixing holes 70, and the connecting devices 80A.

Figure 9 shows the first embodiment of the fire extinguishing slide shutter 1 of the present invention in use.

As shown in this diagram, after the fire extinguishing slide shutter 1 is positioned above the object T, such as a building, the holding mechanism, the towing device 40, is released from holding the multiple frame bodies 10A. This causes the multiple frame bodies 10A, which are stored in a nested state, to slide and unfold sequentially, covering the periphery of the object T and insulating the interior space containing the object T from the outside air.

In other words, this fire extinguishing slide shutter 1 is able to extinguish a fire in the object T by blocking the internal space containing the object T from the outside air, thereby starving the object of fire of the oxygen necessary for combustion. It is a new fire extinguishing device that can quickly extinguish a fire, eliminate impact on the surrounding area, and is independent of water or fire extinguishing agents.

When releasing the multiple frame bodies 10A from the towing device 40, which serves as the holding mechanism, if deployment speed is a priority, it is possible to deploy the frame bodies by allowing them to fall freely due to gravity without any control after release of the towing device 40. However, if it is desired to mitigate impact, the towing device 40 can be attached to a device such as a winch that can control the payout/winding speed. This makes it possible to deploy the multiple frame bodies 10A while controlling the speed after release of the hold, and also makes it easy to return the multiple frame bodies 10A to their nested state by rotating the winch in the opposite direction after use (not shown).

Figure 10 shows the first embodiment of the fire extinguishing slide shutter 1 of the present invention being transported.

Specifically, Figure 10(a) shows a method of using a helicopter 91 as the transportation means 90 for transporting the fire extinguishing sliding shutter 1, connecting the helicopter 91 and the fire extinguishing sliding shutter 1 with the hoisting device 30 and suspending the shutter, while Figure 10(b) shows a method of using a crane truck 92 as the transportation means, connecting the crane truck 92 and the fire extinguishing sliding shutter 1 with the hoisting device 30 and suspending the shutter. Using these transportation means 90, the fire extinguishing sliding shutter 1 can be transported above an object T, such as a building, after which the multiple frame bodies 10A held by the towing device 40, which serves as the holding mechanism, are released for use.

Figures 11 and 12 show a second embodiment of the present invention, a fire extinguishing slide shutter 2 in which a relay device 41 is added to the ceiling panel 20A.

The holding mechanism in this embodiment consists of string-like traction devices 40 attached to the four corners of the outermost frame body 10a, and relay devices 41 located at the four corners of the ceiling panel 20A. The relay devices 41 can be pulleys or the like.

The holding mechanism allows the multiple frame bodies 10A to nest together by inserting the towing tool 40 into the relay tool 41 and pulling it upward. Releasing the towing tool 40 causes the multiple frame bodies 10A to slide downward while still connected. This is an extremely simple and robust structure that does not require an internal power source. The provision of the relay tool 41 guides the towing tool 40, creating a holding mechanism that operates more reliably. It also makes it easy to return the multiple frame bodies 10A to their nested state after use.

Figures 13 and 14 show a square-shaped fire extinguishing slide shutter 3, a third embodiment of the present invention.

As shown in these figures, the planar shape of the multiple frame bodies 10B can also be square, and the planar shape of the ceiling board 20B is also square to match the planar shape of the frame bodies 10B.

The structure and operation of the frame body 10B and the ceiling panel 20B are similar to those of the fire extinguishing slide shutter 1, which uses a frame body with a rectangular shape in plan view, so detailed explanation will be omitted.

The square-shaped fire extinguishing slide shutter 3 is smaller than the rectangular fire extinguishing slide shutter 1, whose short sides are approximately the same length. This has the advantage that, for example, when used in a densely built residential area, it can be used without interfering with neighboring buildings around the target building T.

The shape of the frame can be selected as appropriate depending on other desired purposes, costs, etc. For example, it is possible to make a circular fire extinguishing sliding shutter with an approximately circular frame (not shown).

Figures 15 to 18 show a fourth embodiment of the present invention, a fire extinguishing slide shutter 4 using a connecting structure with a locking mechanism.

The connecting structure 50B in this embodiment has a locking mechanism that prevents the slide from returning, allowing the frame body 10A to remain in its extended, slid-out state. Therefore, as shown in FIG. 15, the frame body 10A in this embodiment remains in its slid out state due to the locking mechanism after deployment, and can independently maintain its deployed state even when the towing by the hoisting device 30 is released. Therefore, particularly at fire sites where flammable materials, chemicals, and other dangerous substances are present and there is a risk of explosions or toxic gases, the area can be quickly left after installation, allowing firefighting while ensuring safety.

The connecting structure 50B with a locking mechanism in this embodiment comprises a long hole 60B formed in the side of one of the two adjacent frame bodies 10A, extending in the sliding direction, a fixing hole 70 formed in the opposing position on the side of the other frame body, and a connector 80B having large-diameter heads 82, 85 on both ends of a shaft 83.

The elongated hole 60B has a narrow elongated hole section 61 and a wide elongated hole section 62, defined by a step 63 formed on its inner surface. The fixing hole 70 has a small diameter hole section 71 and a large diameter hole section 72, defined by a step 73 formed on its inner surface. The shaft 83 of the connector 80B is inserted through the narrow elongated hole section 61 of the elongated hole 60B and the small diameter hole section 71 of the fixing hole 70. The head sections 82 and 85 are housed in the wide elongated hole section 62 and the large diameter hole section 72, respectively. The head section 82 housed in the wide elongated hole section 62 can slide within the wide elongated hole section 62. This is basically the same as the connecting structure 50A.

The locking mechanism consists of locking protrusions 89, 89 (see Figure 16) formed symmetrically on the shaft 83 of the connector 80B, and a rotating portion 65 (see Figure 17) formed by widening the narrow elongated hole portion 61 of the elongated hole 60B at the sliding direction end.

The rotating portion 65 consists of a guide surface 66 formed on the inner circumferential surface on the sliding direction side, inclined toward the sliding direction, and a locking step 67 formed on the inner circumferential surface on the opposite side of the sliding direction.

With this locking mechanism, the shaft 83 (the locking protrusions 89, 89) moves while contacting the guide surface 66, causing the entire connector 80B to rotate about its axis. After rotation, the locking protrusions 89, 89 engage with the locking step 67, thereby retaining the connector 80B within the rotating portion 65. This prevents the slide from returning, maintaining the extended state of the frame body after the slide has been completed.

Figure 18 is an explanatory diagram showing how the locking mechanism locks the frame body after completing the sliding operation in this embodiment.

As shown in Figure 18(a), the rotating portion 65 is formed at the end of the sliding direction of the elongated hole 60B formed in the frame body 10A, expanding to a width W3 that is greater than or equal to the width W1 of the narrow elongated hole portion and less than or equal to the width W2 of the wide elongated hole portion.

When the frame body 10A slides further from the position shown in Figure 18(a), the locking projections 89, 89 of the connector 80B come into contact with the guide surface 66, almost completing the sliding motion, as shown in Figure 18(b). At this time, the locking projections 89, 89 of the connector 80B are guided in an inclined direction while in contact with the guide surface 66, causing the connector 80B to rotate about its axis.

Figure 18(c) shows the state in which the connector 80B of the frame body with the sliding completed rotates on its axis, activating the locking mechanism. At this time, a locking step 67 is formed on the inner peripheral surface of the rotating portion 65 on the side opposite the sliding direction, and because the width W4 of the locking protrusion is wider than the width W1 of the narrow elongated hole, the locking protrusions 89, 89 come into contact with the locking step 67, preventing the connector 80B from escaping from within the rotating portion 65, thereby maintaining the frame body with the sliding completed in an extended state.

Figures 19 to 21 show a fifth embodiment of the present invention, a fire extinguishing slide shutter 5 equipped with a non-flammable cover, a non-flammable flexible mop-shaped buffer material, and an attachment port for a release device.

As shown in Figure 19, which shows the state of use, the fire extinguishing slide shutter 5 has a sheet-like non-flammable cover 100 attached to the upper side of the frame body 10A, a non-flammable flexible mop-shaped buffer member 14 attached to the lower side of the frame body 10A, and an attachment port 24 for a fire extinguishing material discharge device attached to the center of the ceiling panel 20A.

The non-flammable cover 100 is made of a non-flammable or flame-retardant, flexible material, such as a woven glass fiber sheet, and is arranged on all four sides to cover the connecting structure when deployed. Before use, it is stored in a rolled or accordion-shaped manner, with at least one end fixed to the frame body 10A or the ceiling panel 20A.

In this embodiment, one end 101 of the non-combustible cover 100 is fixed to the ceiling board 20A and the other end 102 is left free, so that when the multiple frame bodies 10A are extended, the other end 102 drops, thereby deploying the non-combustible cover 100. However, it is also possible to fix one end 101 of the non-combustible cover 100 to the ceiling board 20A and fix the other end 102 to the outermost frame body 10a of the frame bodies, so that when the multiple frame bodies 10A are extended, the other end 102 drops together with the frame body 10a, thereby deploying the non-combustible cover (not shown).

A separate retaining member (not shown) may be provided to maintain the non-combustible cover 100 in its stored state. The retaining member may be, for example, a string-like member or tape that breaks upon impact.

By providing the non-flammable cover 100 in this manner, it is possible to cover and conceal the long hole 60A of the connecting mechanism 50A, more tightly covering the periphery of the object T and isolating the internal space containing the object T from the outside air.

The non-flammable, flexible mop-shaped buffer member 14 is made of a non-flammable or flame-retardant material that is also flexible, such as acrylic fiber, and is positioned at the bottom of the outermost frame body 10a of the frame plates.

By providing the cushioning member 14 in this way, the frame body 10a can exert a cushioning effect when it comes into contact with the ground, absorbing the impact. Furthermore, even if the ground is uneven, the frame body 10a can deform to fit the shape of the ground, filling in any gaps, more tightly covering the periphery of the object T and isolating the internal space containing the object T from the outside air.

The attachment port 24 for the fire extinguishing material discharge device is formed at the outer end of a pipe-shaped passage 25 that penetrates the center of the horizontal portion 21 of the ceiling panel 20A.

The passage 25 may also be a bendable shape, such as a bellows tube (not shown).

By providing the attachment port 24 in this manner, it is possible to extinguish a fire by using a fire engine, fire hydrant, or water bucket that can supply water as a fire extinguishing substance as a discharge device, connecting the discharge device to the attachment port 24, and discharging water from above the target object T, thereby enabling faster and safer fire extinguishing in environments where water is available.

In addition, a nozzle member 26 with multiple spray holes is attached to the inner end of the passage 25, allowing the sprayed water to be dispersed evenly.

The extinguishing material supplied through the attachment port 24 is not limited to water; other materials can be used, such as fire extinguishing agents, water mixed with fire extinguishing agents, or inert gases such as nitrogen or carbon dioxide for fire extinguishing. Any material can be used, regardless of its nature, such as liquid, gas, solid, foam, or gel.

The fire extinguishing method using the fire extinguishing slide shutter 5 in this embodiment combines water extinguishing and cooling with oxygen extinguishing, compared to the conventional simple fire extinguishing method of only spraying water from a fire engine. This allows for faster fire extinguishing. After the fire is extinguished, the towing device 40 or the lifting device 30 can be reeled in to quickly release the seal, allowing firefighters and others to enter the object T. This is expected to increase the chances of rescuing anyone who is unable to escape and is found inside the object T.

Figure 22 shows a sixth embodiment of the present invention, a fire extinguishing slide shutter 6 with an additional auxiliary frame.

The auxiliary frame 110 has a double structure consisting of an outer auxiliary frame 111 and an inner auxiliary frame 113, and is positioned above the multiple frame bodies 10A. It may also have a single structure using only the outer auxiliary frame 111 (not shown).

Relays 112 for inserting the towing device 40 are provided at the four corners of the outer auxiliary frame 111. The relays 112 can be pulleys or the like.

The inner auxiliary frame 113 is connected to the ceiling panel 20A by a hoisting fixture 114, and by holding the ceiling panel 20A in a fixed position using the hoisting fixtures 30 and 114, the multiple frame bodies 10A can be slid open and closed.

In this embodiment, the towing device 40, one end of which is fixed to the outermost frame body 10a among the frame plates, passes through the relay device 112 of the outer auxiliary frame 111 and is then connected to a moving means or the like, thereby enabling the deployment and storage of the multiple frame bodies 10A.

In addition, connecting posts or connecting wires may be provided between the outer auxiliary frame 111 and the inner auxiliary frame 113 to connect them (not shown).

Providing the auxiliary frame 110 in this way not only improves the overall strength of the fire extinguishing slide shutter, but is also desirable because it makes it easier to maintain balance when unwinding or retracting the hanging device 30 or the towing device 40.

Figure 23 is a perspective view showing a fire extinguishing slide shutter 7 equipped with a cylindrical non-combustible cover, which is a seventh embodiment of the present invention.

The cylindrical non-flammable cover 120 is made of a non-flammable or flame-retardant, flexible material, such as a woven glass fiber sheet. One end 121 is fixed to the outer auxiliary frame 111, and the other end 122 is fixed to the outermost frame body 10a, so that it covers the outer periphery of the frame body 10A when deployed, and is arranged in a bellows-like manner.

By providing the cylindrical non-combustible cover 120 in this manner, the non-combustible cover 120 in addition to the multiple frame bodies 10A can double-cover the periphery of the target object T, blocking it from the outside air, making it possible to more reliably extinguish the fire on the target object T.

In each of the above embodiments, it is assumed that the target T is a large object such as a building, and that the fire extinguishing slide shutter is a large device with a frame large enough to conceal the target T, but the embodiments of the present invention are not limited to this. For example, it can be configured as a device of a size that can be carried by hand, and can also be used as a small device for relatively small fires, such as for extinguishing unexpected fires or bonfires (not shown).

In addition, in each of the above embodiments, the outermost frame body slides downwards the most, the innermost frame body is at the top and is provided with a ceiling plate, and when viewed from the front of the frame body in the expanded state, the shape is convex upward. However, this can also be reversed. In other words, the innermost frame body slides downwards the most, the outermost frame body is at the top and is provided with a ceiling plate, and when viewed from the front of the frame body in the expanded state, the shape is convex downward (not shown).

In this case, the lifting device is attached to the ceiling panel, but the towing device, which is the holding mechanism, is attached to the innermost frame. For example, a through-hole can be formed in part of the ceiling panel, and the towing device can be exposed to the outside of the ceiling panel through the through-hole and configured to be operable (not shown).

As described above, the fire extinguishing sliding shutter of the present invention makes it possible to quickly extinguish a burning object without using water or fire extinguishing agents, without affecting the surrounding area. Furthermore, the use of a connecting structure with a locking mechanism improves ease of use, the use of a non-flammable cover or a non-flammable flexible mop-shaped buffer member improves fire extinguishing performance by increasing airtightness, and the use of an attachment port for a fire extinguishing agent release device improves fire extinguishing performance using fire extinguishing agents such as water or fire extinguishing agents. By combining some or all of these elements, an even better fire extinguishing sliding shutter can be provided.

1, 2, 3, 4, 5, 6, 7 Fire extinguishing slide shutter, 10A, 10B, a, 10b, 10c, 10j Frame body, 11 Flat plate portion, 12 Corner portion, 14 Buffer member, 20A, 20B Ceiling plate, 21 Horizontal portion, 22 Inclined portion, 24 Mounting port for release device, 25 Passage, 26 Lotus mouth member, 30 Lifting device, 31 Mounting device, 40 Towing device, 41 Relay device, 50A, 50B Connecting structure, 60A, 60B Long hole, 61 Narrow long hole portion, 62 Wide long hole portion, 63 Step portion, 65 Rotating portion, 66 Guide surface, 67 Locking step portion, 70 Fixing hole, 71 Small diameter hole portion, 72 Large diameter hole portion, 73 Step portion, 80A, 80B Connecting device, 81 Convex part, 82 Head, 83 Shaft, 84 Recessed part, 85 Head, 86 Fitting hole, 87 Fixing screw, 89 Locking protrusion, 90 Transportation means, 91 Helicopter, 92 Crane, 100 Non-combustible cover, 101 One end, 102 Other end, 110 Auxiliary frame, 111 Outer auxiliary frame, 112 Relay, 113 Inner auxiliary frame, 114 Lifting fixture, 120 Non-combustible cover, 121 One end, 122 Other end, T Object, W1 Width of narrow elongated hole, W2 Width of wide elongated hole, W3 Width of rotating part, W4 Width of locking protrusion

Claims (9)

A fire extinguishing slide shutter in which a plurality of frame bodies stored in a nested state slide out sequentially from above to below a burning object to surround the periphery of the object, and a ceiling plate is provided on the frame body located on the innermost or outermost side to isolate the object from outside air and extinguish the fire,
a suspending tool that suspends the frame body or the ceiling panel from above;
a holding mechanism that holds the plurality of frame bodies in a nested state before deployment;
a connecting structure formed between the side surfaces of the adjacent frame bodies that are in contact with each other;
and
A fire extinguishing sliding shutter characterized in that the connecting structure connects the multiple frame bodies so that they can slide vertically while remaining connected, and that by releasing the holding mechanism, the multiple frame bodies can slide downward while still connected. The fire extinguishing sliding shutter according to claim 1, characterized in that the holding mechanism comprises a string-like pulling device attached to the outermost or innermost frame body, and by pulling the pulling device upward, the multiple frame bodies are stored in a nested state, and by releasing the pulling device, the multiple frame bodies slide downward in a connected state. A fire extinguishing slide shutter as described in claim 1 or 2, characterized in that the ceiling panel is formed with an attachment port for a discharge device that discharges fire extinguishing material from above the target. A fire sliding shutter as claimed in claim 1, 2 or 3, characterized in that the connecting structure comprises an elongated hole formed in one of the adjacent side surfaces and extending in the sliding direction, a fixing hole formed in the other side surface at an opposing position, and a connector having large-diameter heads on both ends of its shaft, the elongated hole having a narrow elongated hole portion and a wide elongated hole portion due to a step formed on its inner surface, and the fixing hole having a small-diameter hole portion and a large-diameter hole portion due to a step formed on its inner surface, the shaft of the connector being inserted through the narrow elongated hole portion of the elongated hole and the small-diameter hole portion of the fixing hole, and the head portion being housed in the wide elongated hole portion and the large-diameter hole portion, respectively, and the head portion housed in the wide elongated hole portion can slide within the wide elongated hole portion, thereby connecting adjacent frame bodies to each other in a vertically slidable manner by a predetermined distance. The connecting structure has a locking mechanism that restricts the return of the slide, and is capable of maintaining the frame body in a slidably deployed and extended state,
the connector comprises an elongated hole formed in one of the side surfaces that are in contact with each other and extending in the sliding direction, a fixing hole formed in the other side surface at an opposing position, and a connector having large-diameter heads at both ends of a shaft portion, the elongated hole having a narrow elongated hole portion and a wide elongated hole portion due to a step formed on the inner peripheral surface, and the fixing hole having a small-diameter hole portion and a large-diameter hole portion due to a step formed on the inner peripheral surface, the shaft portion of the connector is inserted through the narrow elongated hole portion of the elongated hole and the small-diameter hole portion of the fixing hole, and the head portion is housed in the wide elongated hole portion and the large-diameter hole portion, respectively, and the head portion housed in the wide elongated hole portion can slide within the wide elongated hole portion,
Furthermore, a locking protrusion is formed on the shaft portion of the connector, a rotating portion with an expanded hole width is formed at the sliding direction end of the narrow elongated hole portion of the elongated hole, a guide surface is formed on the inner surface of the rotating portion on the sliding direction side, which rotates the shaft portion by contacting the guide surface, and a locking step is formed on the inner surface of the rotating portion on the opposite side in the sliding direction, which locks the locking protrusion of the rotated shaft portion and restricts the sliding from returning, thereby maintaining the extended state of the frame body when the sliding is completed. A fire extinguishing slide shutter according to claim 1, 2, 3, 4 or 5, characterized in that the lower end of the frame located at the outermost or innermost position is shaped like a non-flammable flexible mop. A fire extinguishing slide shutter as described in claim 1, 2, 3, 4, 5 or 6, characterized in that a sheet-like non-combustible cover is provided with at least one end fixed to the ceiling panel or the frame body, and the non-combustible cover spreads downward as the frame body unfolds, covering from the outside the connecting mechanisms formed on the multiple frame bodies. A fire extinguishing slide shutter as described in claim 1, 2, 3, 4, 5 or 6, characterized in that a cylindrical non-combustible cover is provided with at least one end fixed to the ceiling panel or the frame body, and the non-combustible cover expands downward as the frame body expands, surrounding the periphery of the multiple frame bodies. A fire extinguishing slide shutter according to claim 1, 2, 3, 4, 5, 6, 7 or 8, characterized in that the lifting device is connected to a moving means.