JP2005334203A - Fire shutter device between railroad vehicles - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire shutter device between railroad vehicles preventing fire spread to an adjacent vehicle and entering of a fire and smoke by immediately cutting off a gangway between the vehicles at the occurrence of a fire of the vehicle, allowing persons to pass therethrough during the cut-off state of the gangway and being mountable to an existing vehicle. <P>SOLUTION: This fire shutter device between the railroad vehicles is provided with a cloth fireproofing screen 4 provided between the end face 3a of a hood device 3 covering the circumference of the gangway between the vehicles and gable faces 12 of a vehicle body 11, stored on the hood device 3 with its rolled up thereon and, at a fire, suspended therefrom to cut off the gangway 2. The fireproofing screen 4 is so constituted as to allow the passing of persons even in a state of cutting off the gangway 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fire shutter device equipped in a through passage through which a person above a connecting portion between railway vehicles passes, and more particularly, to a fire shutter device provided with a cloth fireproof screen. In the present specification, fire prevention includes smoke prevention.

  There are two types of throughways between railway vehicles: a closed type with an opening / closing door at the end of the vehicle and an open type without an opening / closing door. In the case of an open type throughway, if a vehicle fire occurs, it is easy for flames and fumes to move to other vehicles through the throughway, but when such a vehicle fire occurs, it usually runs until it reaches the nearest station. Has been decided to continue. This means that if the vehicle is stopped in the middle of the station, passengers will be lowered onto the track, and the evacuation will be evacuated in a state where the lighting is not sufficient, and it is difficult to secure an evacuation passage. In addition, the behavior is constrained by the surrounding smoke, and if the evacuation direction is mistaken and the person evacuates to a distant adjacent station in the same direction as the flue gas, it is affected by smoke and carbon monoxide, etc. It is dangerous and requires more time to evacuate, which can lead to even more catastrophic accidents.

  Conventionally, an open type throughway between railway vehicles is not equipped with any shutter device for fire prevention. On the other hand, closed-type through passages are blocked by closing the open / close doors, but it is not certain that they have fireproof properties and particularly smoke-proofing performance under the present circumstances.

  In addition, although the prior art regarding the fire shutter device for railway vehicles is not found, there are the following prior arts for buildings.

  For example, an intermediate layer of a non-flame retardant synthetic resin selected from an ethylene-vinyl acetate copolymer and an acrylic resin is interposed on one side of a glass fiber cloth, and a glass fiber cloth having a silicone resin surface coating layer thereon is used as a substrate. Fire screen material (see Patent Document 1).

  A fireproof screen made of a woven fabric woven by using together a silica fiber yarn and a reinforcing yarn having higher heat resistance than the silica fiber yarn (see Patent Document 2).

  A fireproof screen suspended from the ceiling is provided with a slit part that reaches the lower end in the vertical direction and divided into left and right parts. At the lower end of the left and right screens, the sub-weight bar is located near the slit part, and the main weight bar is placed outside them. A screen device for a fire protection compartment fixed to a frame (see Patent Document 3).

Guide rails are provided on both sides of the fire screen to guide and insert them, and a retaining body larger than the width of the fire screen insertion opening in the guide rail is attached to both sides of the fire screen. A screen device in which a weight body formed by folding back is attached to the lower end of the screen, and a part of the weight body is inserted into a guide rail in a flat plate shape (see Patent Document 4).
Patent No. 3484162 (paragraph numbers 0008 and 0009) Japanese Patent No. 3295042 (paragraph numbers 0009 to 0023 and FIGS. 1 and 2) Patent No. 3085200 (paragraph numbers 0009 and 0010 to 0017 and FIG. 1) Japanese Patent No. 3418107 (paragraph numbers 0007/0026/0030 and FIGS. 1 and 2)

  As described above, fireproof shutter devices using fireproof screens have been proposed for buildings. However, there is room for improvement in the following points when a building device is applied to a railway vehicle throughway.

a) If the car body structure is remodeled and installed, it will affect the siding line leading to the back of the ceiling. Therefore, the structure which does not modify a structure structure is required.
b) Although it is necessary to prevent the vehicle fire from spreading to the adjacent vehicle by blocking the inter-vehicle throughway, it is necessary to allow passengers and passengers of the fire vehicle to pass and to transfer to the adjacent vehicle.

  c) The place where the fire shutter device is installed is limited between the end face of the hood device and the end face of the hood device. This is because in other places, the vehicle body and the hood device are modified, and it cannot be applied to a ready-made vehicle.

  d) Due to c) above, the front shape of the device is adapted to the shape of the opening of the through-passage, a fire screen winding device (also called a winding device) is installed on the hood device, or the fire screen is rolled up It is necessary to reduce the outer diameter of the hoist to reduce the size of the hoisting device.

  e) The fire screen should be raised and lowered using an emergency power source, or the fire screen should be lowered even when the emergency power source cannot be used. On the other hand, the power may be turned off when a vehicle is put into the garage, during repair or inspection, and in such a case, the fireproof screen should not be lowered.

  When a vehicle used in construction is mounted on a vehicle, every time the vehicle enters the depot, all power including emergency power is shut off, so the screen descends. It also interferes with cleaning the car.

  The present invention has been made in view of the above points, and when a vehicle fire or the like occurs, the through passage between the vehicles can be instantaneously interrupted to prevent the spread of fire and intrusion of flames and smoke to adjacent vehicles. An object of the present invention is to provide a fire shutter device between railway vehicles that allows people to pass even in a state and can be installed in a ready-made vehicle.

  In order to achieve the above object, a fire shutter device between railway vehicles according to the present invention includes, for example, an end face 3a of a hood device 3 that covers the periphery of a through-roadway 2 between railway vehicles and a wife of a vehicle body 11 as shown in FIG. A fireproof screen 4 made of cloth is provided between the surface 12 and accommodated on the hood device 3 in a rolled-up state. The fireproof screen 4 hangs down and blocks the through passage 2 when a fire occurs. It is configured to be able to pass even when the through-passage 2 is blocked.

Since the fire shutter device between railway vehicles having the above-described configuration is provided between the end face of the body surface and the hood device, the ready-made vehicle can be installed without modification. Also, during normal driving, the fireproof screen is rolled up on the hood device, and the through passage is in an open state so that it does not get in the way. On the other hand, when a vehicle fire occurs, the fireproof screen descends and blocks the through passage, preventing the spread of fire and the invasion of flames and smoke to adjacent vehicles. Moreover, even if the fireproof screen is blocking the through-passage, traffic is possible, so passengers can transfer from the fire-occurring vehicle to the adjacent vehicle. This is a configuration for passengers and passengers of fired vehicles to move to other vehicles because it is customary to travel to the nearest station when a vehicle fire occurs while traveling. is there.

  According to a second aspect of the present invention, a roll-up storage portion of the fireproof screen is disposed on the hood device, and a pair of left and right is provided on both sides of the through passage between the end surface of the hood device and the end surface of the vehicle body. The guide pillars of the fireproof screen can be arranged in the vertical direction across both sides.

  With such a configuration, the guide column functions as a mounting member for the fireproof shutter device, and the guide column guides and moves up and down smoothly when the fireproof screen is wound and unwound.

  According to a third aspect of the present invention, the fireproof screen is provided with a vertically long (evacuation) opening that is continuous in the vertical direction with a constant opening width and allows passage of people at the center in the width direction. A second (auxiliary) fireproof screen can be provided on at least one of the front surface and the rear surface so that the opening can be opened and closed.

  This configuration represents one of the specific examples that allow passengers to pass in the state where the through passage is blocked by the fireproof screen. The fireproof screen is opened and you can transfer to the adjacent vehicle through the evacuation opening.

  5. The adsorbing member such as a magnet, a magnetic body, a hook, or a cloth fastener, wherein the lower end portions of the fireproof screen sleeve portions located on both sides of the opening are connected by a connecting member. It can fix on the floor surface of a penetration path via.

  According to the fire shutter device between railway vehicles according to claim 4, the connecting member that connects the lower ends of the fireproof screen sleeves on both sides of the opening is fixed to the floor surface of the through-passage by the attracting force of the attracting member such as a magnet. The lower end of the fireproof screen is not lifted carelessly, and the through passage can be reliably blocked.

  6. The guide column according to claim 5, wherein the guide column is provided with a groove having a concave cross section in the vertical direction, and the guide column is engaged with the insertion opening of the guide column on both sides of the fireproof screen to prevent the guide column from coming out. It is possible to project the portions at intervals in the vertical direction.

  According to the fire shutter device between railway vehicles according to claim 5, since the guide portion prevents the side of the fireproof screen inserted into the guide pillar from slipping out, both sides of the fireproof screen do not come out when descending, and the through passage Can be reliably cut off, and the guide portion guides the guide column when the fireproof screen is raised and lowered, so that the raising and lowering is smooth.

  As described in claim 6, it is desirable that the upper and lower intervals of the guide portion are unequal.

  With this configuration, the position of the guide portion is shifted and does not overlap in the winding state of the fireproof screen, so that the winding diameter becomes small and can be stored compactly on the hood device.

  The guide pillar of the fireproof screen is tilted outwardly so that the distance between the insertion openings facing each other gradually increases from the upper end to the lower end, and the position of the guide portion of the fireproof screen. May be extended stepwise from the upper end to the lower end along the inclined guide pillar insertion opening.

With this configuration, the guide portion attached to the side portion of the fireproof screen can be made to have a small diameter because the guide portion is not displaced and overlapped at the time of winding, regardless of whether the guide portion is mounted at equal intervals or unequal intervals.

  A magnet, a magnetic body, a hook, or a cloth fastener is attached to a lower end of the second fireproof screen directly or via a connector that melts at a predetermined temperature, and the upper part of the fireproof screen or a through-passage. It can be configured to be attachable to and detachable from a mating member that is attached to the upper part of the member via a connector that melts at a predetermined temperature or directly.

  With this configuration, the lower end of the second refractory screen can be attached to the upper part of the refractory screen or the upper part of the through passage so that the second refractory screen can be easily opened in a half-open state. Even in the half-open state, when the fire progresses and the temperature inside the vehicle rises, the connection tool melts and is cut, and the through passage is blocked by the second fireproof screen.

  According to a ninth aspect of the present invention, a weight body can be provided at the lower end of the second fireproof screen, and a fireproof curtain can be connected below the weight body.

  According to the fire shutter device between railway vehicles according to claim 9, the second fire screen is smoothly lowered and the evacuation opening is surely blocked, and a gap is prevented from being generated below the second fire screen. Is done.

  As described in claim 10, at least one of the fireproof screen and the second fireproof screen can be made of silica cloth.

  In this way, a lightweight cloth-like screen with a very high fireproof temperature is constructed, so that it is possible to prevent the fire from spreading or smoke as a fireproof shutter device, and to wind and rewind the screen. It can be installed easily even in a narrow space between the hood device and the body surface.

  According to an eleventh aspect, a part of the fireproof screen and the second fireproof screen can be formed of a see-through member or a translucent screen. The see-through member or translucent screen is a member in which both sides of a polyimide film are covered with a fire-resistant porous material such as a wire net or punching metal having a thickness of 0.05 to 0.1 mm, or a reinforcing yarn refined with polyamide. A film or the like reinforced by attaching a cloth material having a rough gauze-like texture is used.

  By doing in this way, since the fire condition etc. of an adjacent vehicle can be confirmed on both sides of a penetration path, a passenger's evacuation guidance, rescue, etc. can be performed exactly.

  Since the fire shutter device between railway vehicles according to the present invention has the above-described configuration, it has the following excellent effects.

The fire protection shutter device of the present invention accommodates a rolled screen installed between the end surface of the hood device covering the periphery of the through-roadway between the railway vehicles and the end surface of the vehicle body on the hood device, and hangs down when a fire occurs. Since the through-passage is cut off and the vehicle can pass even in this cut-off state, it can be installed without modifying an off-the-shelf vehicle. During normal driving, the through-passage is opened and does not get in the way. On the other hand, when a vehicle fire occurs, the fireproof screen descends and blocks the through passage, preventing the spread of fire and the intrusion of flames and smoke to adjacent vehicles. Since it is possible, passengers are not retracted while traveling from a fire-occurring vehicle to an adjacent vehicle when the vehicle is traveling on a straight road, for example, a curved road including an S-shaped curve (particularly in the case of a subway) Is under the road along the road, so the curve radius is small and the roll of the vehicle is large) However, in a difficult situation, it can be easily transferred even in a harsh situation of moving to an adjacent vehicle with a larger displacement, and the safety is high.

  Embodiments of a fire shutter device between railway vehicles according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a cross-sectional view taken along the line aa of FIG. 2, showing a railcar equipped with a fire shutter device according to the embodiment, FIG. 2 is a cross-sectional view taken along the line bb of FIG. 1, and FIG. It is sectional drawing which expands and shows a part. 4A is a plan view showing the railcar of FIG. 1 on a curved road, and FIG. 4B is a cross-sectional view taken along the line bb of FIG. 4A.

  As shown in FIG. 2, the fire shutter device 1 of this example is interposed between one end surface 3 a of a hood device 3 that constitutes a through-passage 2 that connects vehicles 11 and the end surface 12 of the vehicle body 11. ing. The fire shutter device 1 includes a device main body 1a formed of an inverted L-shaped housing as viewed from the side, and a storage chamber 1b for winding and storing a cloth fireproof screen 4 made of glass fiber cloth, silica cloth, etc. It is formed at the upper end. A winding device 5 is provided in the storage chamber 1b, and the winding shaft 5a of the winding device 5 is rotated by the electric motor 6 disposed outside the storage chamber 1b to wind up the fireproof screen 4.

  As shown in FIG. 1, the opening of the through passage 2 has a hexagonal shape when viewed from the front, and the inside of the guide pillar 7 constituting a part of the apparatus main body 1 a is formed on both sides below the storage chamber 1 b according to this shape. It is formed in the shape of a “ku” in front view. The guide pillar 7 has a concave shape in cross section, and is provided with insertion ports 7a on both sides of the fireproof screen 4 in the vertical direction along the opposing inner side surfaces.

  As shown in FIGS. 1 and 2, the fireproof screen 4 has a main body 4a having a gate shape. A rectangular vertically long evacuation opening 4b having a lower end opened at the center in the width direction of the screen main body 4a. Is provided. The auxiliary fireproof screens 4c and 4d are arranged before and after the evacuation opening 4b, and the upper ends of the auxiliary fireproof screens 4c and 4d are connected by sewing or the like immediately above the evacuation opening 4b of the screen body 4a. The auxiliary fireproof screens 4c and 4d are used as evacuation doors with their widths slightly larger than the width of the evacuation opening 4b so that both side portions overlap both side edges of the vertically long opening 4b of the screen body 4a.

  Further, the lower ends of both sleeve portions 4a ′ of the screen body 4a are bent and sewn into a bag shape and connected to the weight body 4f, or a metal weight body is inserted into the bag-shaped portion to The screen 4 descends smoothly when rewinding.

  As shown in FIG. 3, for example, as shown in FIG. 3, the vehicle body 11 to which the hood device 3 is conventionally attached is mounted between the body surface 1a of the fire shutter device 1 and the end surface 3a of the hood device 3. The mounting bolts 13 passed through the through holes 11b provided on the vehicle body 11 side of the apparatus main body 1a including the guide column 7 are screwed and tightened to the plurality of bolt holes 11a drilled at intervals. With the apparatus main body 1a attached to the end face 12 of the vehicle body 11 in this way, the attachment bolts 14 are passed through the through holes 3c provided in the metal frame 3a corresponding to the end face of the hood device 3, and the attachment bolts 14 are The end surface (metal frame) 3a of the hood device 3 is attached to the device body 1a by screwing and tightening the bolt hole 15a of the adapter 15 on the hood device 3 side of the device body 1a. The adapter 15 is a reinforcing body, and a screw hole 1d larger than the bolt hole 15a is formed in the apparatus main body 1a, and an external screw 15b provided on the outer peripheral surface of the adapter 15 is screwed into the screw hole 1d and tightened. It is attached to the apparatus main body 1a.

As shown in FIG. 4B, a handrail 8 protrudes from the vicinity of the front face 12 of the front and rear vehicles 11 in the through passage 2 so as to face each other. In this way, the chain 9 is stretched over two stages. Reference numeral 10 in the figure is a connecting device.

  The fire shutter device 1 according to the first embodiment is configured as described above. A usage mode of the device 1 when a vehicle fire occurs will be described.

  If a vehicle fire occurs while the vehicle is running, the wind sensor 5 is unlocked by using a normal power supply or an emergency power supply by detecting a heat detection sensor or a smoke detection sensor installed in the vehicle. . By releasing the lock, the main body 4a of the fireproof screen 4 wound on the winding shaft 5a is lowered along the guide pillars 7 on both sides by its own weight, and the auxiliary screens 4c and 4d are simultaneously unwound and lowered. . The weight 4f at the lower end of both sleeves 4a 'of the screen body 4a and the lower ends of the auxiliary screens 4c and 4d reach the floor surface 2a of the through passage 2 and block the through passage 2, respectively. The lower end of both sleeves 4a 'of the screen 4 and the lower ends of the auxiliary screens 4c and 4d are fitted with materials that attract and attract each other together with the floor surface 2a, mainly magnets, and they are securely attracted and separated inadvertently even in strong winds. Avoid separation and allow separation if necessary.

  Thus, even when the through-passage 2 is blocked by the fireproof screen 4 or in the middle of descending, two second fireproof screens (also referred to as auxiliary screens) 4c and 4d located before and after the escape opening 4b of the screen body 4a. If one of them is pulled open and the other is pushed open, a passenger or the like can transfer to the adjacent vehicle through the evacuation opening 4b. In addition, the winding shaft 5a can be rewound by the electric motor 6 and the fireproof screen 4 can be lowered using electric power regardless of its own weight.

  FIG. 5 is a sectional view corresponding to FIG. 1, showing a fire shutter device according to a second embodiment of the present invention. The difference between the fire shutter device 1-1 of this example and the first embodiment is that the lower ends of the sleeves on both sides of the screen body 4a are connected across the connecting plate 16 having magnetic force. Thereby, when the fireproof screen 4 is lowered, the connecting plate 16 is attracted to the floor surface 2a of the magnetic material such as steel or stainless steel of the through passage 2, and the through passage 2 is surely blocked. Since other configurations are common, common members are denoted by the same reference numerals and description thereof is omitted.

  FIG. 6 is a sectional view corresponding to FIG. 1, showing a fire shutter device according to a third embodiment of the present invention. The fire shutter device 1-2 of this example is different from the first embodiment in that the guide pillar 7 is changed to a straight shape to improve productivity and reduce costs, and both sides 4A of the fireproof screen 4 are used. A guide portion (also used as a retaining body) 17 is attached to the side of the fireproof screen 4 so that the side portions 4A of the fireproof screen 4 do not come out of the guide column 7. Further, guide plates 7c are respectively extended inwardly from the upper ends of the left and right guide columns 7 so that the retaining member 17 is reliably guided into the guide columns 7 when the fireproof screen 4 is lowered.

For example, as shown in FIG. 7, the retaining member 17 is formed by arranging reinforcing cloths 18 cut into a circular shape on both surfaces of the main cloth 4 so that the fiber directions intersect with each other in the bias direction, and bonding or sewing them together. They are integrated and fixed by being pinched by a pair of eyelet fittings 17a. In the state where the eyelet fitting 17a is fixed as shown in FIG. 7A, the retaining member 17 is larger than the width of the insertion port 7a of the guide pillar 7, so that the side portion 4A of the fireproof screen 4 does not come out. Further, as shown in FIG. 6, the retaining body 17 is fixed in the vertical direction along the both side portions 4 </ b> A of the refractory screen 4 at unequal pitches (unequal intervals), and the refractory screen 4 is wound around the winding device 5. In this state, the winding diameter is made small so that the retaining body 17 does not overlap. In addition, in order to cut | disconnect a fiber by making the hole for d dimension of the retainer body 17, the burden force of a retainer body is decided by the crushing strength of the cloth material made from a silica cloth by the diameter d. Since other configurations are common, common members are denoted by the same reference numerals and description thereof is omitted.

  Further, as shown in FIG. 7 and FIG. 8 to be described later, a smoke leaking fin (smoke return) 7b is mounted in the guide column 7 for the purpose of shielding the smoke. This is a fin (smoke return) also provided with a steel fireproof and smoke-proof shutter, and smokes passing through the guide column 7 are smoke-shielded.

  As shown in FIG. 8, the retaining member 17 ′ is fastened by fixing a pair of retaining members 17 with bolts and nuts 17c penetrating the center, and provided with a large number of protrusions 17b on the back surface of the retaining member 17. A structure may be adopted in which the cross 4 and the reinforcing cloth 18 are bitten to prevent positional displacement. The shape of the reinforcing cloth 18 can be changed from a circle to a polygon such as a regular octagon.

  FIG. 9 is a sectional view corresponding to FIG. 1 and showing a fire shutter device according to a fourth embodiment of the present invention. The fire shutter device 1-3 of the present example is different from that of the third example in that the shape of the guide pillar 7 is inclined inwardly upward so that the inner side conforms to the shape of the upper part of the opening of the through passage 2. And the winding state of the fireproof screen 4 by sequentially shifting the mounting positions of the both side portions 4A of the fireproof screen 4 along the inner inclined line of the guide pillar 7 in the width direction along the vertical direction. Therefore, the retaining body 17 is prevented from overlapping. Since other configurations are common, common members are denoted by the same reference numerals and description thereof is omitted.

  FIG. 10 is a sectional view corresponding to FIG. 2, showing a fire shutter device according to Embodiment 5 of the present invention. The fire shutter device 1-4 of the present example is different from that of the first embodiment in that the device main body 1a of the fire shutter device 1-4 is attached to the front and rear faces 12 of the vehicle facing each other with the hood device 3 interposed therebetween. That is, only one auxiliary screen 4c of each fireproof screen 4 is arranged inside the evacuation opening 4b. That is, since the exit and entrance (both end surfaces 3a of the hood device 3) of the through passage 2 are respectively blocked by the fireproof screen 4, the auxiliary screen 4c is disposed only inside the escape opening 4b of each fireproof screen body 4a. In addition, you may arrange | position the auxiliary | assistant screen 4c only to the outer side instead of the inner side of the evacuation opening 4b of each screen main body 4a.

  Therefore, according to the fire shutter device 1-4 of the present example, the exit and the entrance of the through-passage 2 are shut off by the fireproof screen 4 in the event of a vehicle fire, so that the shielding effect is excellent, and one fireproof screen 4 is temporarily provided. Since the other refractory screen 4 is lowered even if the refractory is not lowered, the safety is high. Then, in a state where the outlet and entrance of the through passage 2 are blocked by the fireproof screen 4, the passenger can pass by pulling out the auxiliary screen 4c at the entrance of the through passage 2 and pushing open the auxiliary screen 4c at the exit side. If the auxiliary screen 4c is provided only outside the evacuation opening 4b of each fireproof screen body 4a, it is convenient that the escape from the vehicle to the through passage 2 can be performed by pushing the auxiliary screen 4c open.

  FIG. 11A is a cross-sectional view corresponding to FIG. 1, showing a fire shutter device according to Embodiment 6 of the present invention. The fire shutter device 1-5 of this example is different from the above Example 5 in that when the fireproof screen 4 is rewound, the half of the auxiliary screen 4c is not lowered and the evacuation opening 4b is half open. Eventually, the auxiliary screen 4c is all lowered, and the evacuation opening 4b is fully closed.

In the present embodiment, a magnet or magnetic body 20 is attached to the upper part of both sleeve portions 4a ′ of the screen body 4a via a molten inclusion such as a belt 19 that melts at a predetermined temperature (for example, 50 to 60 ° C.), A magnetic body or magnet 21 is attached to the lower end of the screen 4c. The auxiliary screen 4c previously attracts the magnet 21 at the lower end to the magnetic body 20 of the screen body 4a so as to be in a half-open state, and causes the winding device 5 to wind up the entire refractory screen 4. For this reason, at the initial stage such as when a vehicle fire occurs, when the refractory screen 4 is rewound and lowered, the auxiliary screen 4c is half-opened, so that smoke shielding and passenger evacuation can be facilitated. As shown in FIG. 11 (b) (corresponding to FIG. 2), a magnetic body 20 via a molten inclusion 19 is provided in the head of the through passage 2 and the magnet 21 at the lower end of the auxiliary screen 4c is used as the head of the head. 20 may be adsorbed. As the molten inclusion 19, for example, a polyethylene film tape, a tin / lead / bismuth alloy (a material for thermal fuse), or a link made of urethane rubber can be used.

  FIG. 12 is a cross-sectional view corresponding to FIG. 2, showing a fire shutter device according to Embodiment 7 of the present invention. The fire shutter device 1-6 of this example is different from that of the above Example 6 in that it includes a protection when a passenger staggers on both sleeves 4a 'of the screen body 4a just beside the evacuation opening 4b. 4e was reinforced by sewing or braiding. The wire 4e is a twisted stainless steel wire, and if the width is the same, the winding diameter becomes thick. Therefore, consideration is given to changing the arrangement of the wire 4e in the horizontal direction at the vertical position. Similarly, the width of the evacuation opening 4b can be changed up and down.

  Further, when the fireproof screen 4 shown in FIG. 14 is rewound, both sleeve portions 4a ′ of the screen body 4a are also half open so that the lower half is opened, and the half of the auxiliary screen 4c is not lowered and the evacuation opening 4b is formed. The screen main body 4a is lowered from this state. As shown in FIG. 13, the low-temperature melting tape 24 is melted or the hook 26 is operated and removed as shown in FIG. 14, and all the auxiliary screens 4c are lowered. Finally, the through passage 2 is fully closed. 12 and 14 show the screen 4 being lowered.

  Specifically, a magnet is attached to the lower end of both sleeves 4a ′ of the screen body 4a via a tape or a link-like melted inclusion, and is attracted to a wall surface made of a magnetic material in the apparatus body 1a so as to be in a half-open state. . A magnet or a magnetic material may be attached by attaching with a low-melting adhesive, and a thermoplastic resin-based, for example, a polyvinyl ether-based backing can be used as the adhesive.

  FIG. 16 is a cross-sectional view showing an embodiment of a lock mechanism that prevents the winding device 5 of the fireproof screen 4 from inadvertently descending. The lock mechanism 31 is a gear for a driving device in which a gear 32 is attached to one end of a winding shaft 5 a so as to be integrally rotatable. A lock pin 33 that can be locked in a tooth groove 32 a of the gear 32 is locked via a spring 34. Energize in the direction. On the other hand, a solenoid 35 is disposed around the base of the lock pin 33, and the lock pin 33 is pulled against the spring 34 by energization, so that the locked state of the gear 32 is released and the fireproof screen 4 is lowered. It becomes possible. Further, the base end of the lock pin 33 is pivotally attached to a long hole 36a provided at the center of an isosceles triangular link 36 with the apex downward, via a support shaft 37, and is attached to both corners on the bottom side of the link 36. One end of the core wire 38b of the push-pull cable 38 is pivotally connected to each other through the connecting piece 38a. The other end of the core wire 38b is pivotally connected slightly closer to the tip than the intermediate position in the length direction of the release lever 39. The release lever 39 is horizontally held in the opening 41 a of the recess 41 via the pressing spring 40 on the base end side. The release lever 39 and the recess 41 are provided in the interior of the vehicle 11, the wife surface 12, or the like.

  The lock mechanism 31 having the above configuration can be electrically unlocked by an electromagnetic power with an emergency power supply, and can be manually released by pulling the release lever 39 or the core wire 38b of the push-pull cable 38 directly. Instead of the gear 32, a sprocket or a chain can be locked by a lock pin 33. Further, instead of the winding shaft 5a of the winding device 5, the weight body 4f at the lower end of the fireproof screen 4 can be locked directly or via a lever so as not to descend. As shown in FIG. 17, the release lever 39 is raised by pushing the proximal end side of the release lever 39, so that the lock is released by lowering the tip. Although illustration is omitted, the lock is similarly released by pulling the core wire 38b of the other push-pull cable 38, and the lock is also released by pulling both the core wires 38b at the same time.

Although six embodiments of the fire shutter device of the present invention have been described above, they can also be implemented as follows. (I think this part overlaps with the above changes. Please consider which one is valid.

  1) A cylindrical weight body 22 is fixed to the lower end of the auxiliary screen 4c, and a silica cloth fireproof curtain 23 is connected to the lower end of the weight body 22 as in the fire shutter device 1-7 shown in FIG. The hanging curtain 23 is previously attached to the head of the through passage 2 with a low-melting tape 24 so as to be in a half-open state.

  2) Like the fire shutter device 1-8 shown in FIG. 14, another weight body 25 is attached above the lower end of the auxiliary screen 4c to ensure the lowering. Further, even before the tape 19 is melted and cut, the hook 26 that can be operated from inside and outside the vehicle and can lock the tip of the tape 19 is mechanically or electrically rotated or rotated manually. Or the auxiliary screen 4c is lowered. This configuration can be used during periodic inspections.

  3) Like the fire shutter device 1-9 shown in FIG. 15, the frame constituting the end face 3a of the hood device 3 is used as the guide column 7, thereby connecting the upper ends of the guide columns 7 shown in the above embodiment. This eliminates the horizontal portion, and allows both sleeves of the fireproof screen body 4a to descend smoothly.

  4) Although illustration is omitted, the magnet and the weight body are rounded with as few corners as possible, and the periphery is covered with an elastic body as necessary.

  5) Instead of magnets and hooks, cloth fasteners can be used.

  6) Although illustration is omitted, it is possible to provide a window hole at the lower end of both sleeves 4a 'of the fireproof screen main body 4a, dispose fireproof glass in the window hole, and cover both sides with a punching metal or the like.

It is the sectional view on the aa line of FIG. 2 which shows the railway vehicle provided with the fire shutter apparatus concerning the Example of this invention. It is the bb sectional view taken on the line of FIG. It is sectional drawing which partially enlarges and shows the attachment state of the apparatus main body in the fire prevention shutter apparatus of this invention. 4A is a plan view showing the railcar of FIG. 1 on a curved road, and FIG. 4B is a cross-sectional view taken along the line bb of FIG. 4A. It is sectional drawing corresponding to FIG. 1 which shows the fire prevention shutter apparatus 1-1 concerning Example 2 of this invention. It is sectional drawing corresponding to FIG. 1 which shows the fire prevention shutter apparatus 1-2 concerning Example 3 of this invention. 7A is a cross-sectional view taken along the line aa of FIG. 7B, and FIG. 7B is an enlarged front view showing the retaining member 17 according to the third embodiment of the present invention. 8A is a cross-sectional view taken along the line aa of FIG. 8B, and FIG. 8B is an enlarged front view of a retaining member 17 'according to another embodiment. It is sectional drawing corresponding to FIG. 1 which shows the fire shutter apparatus 1-3 concerning Example 4 of this invention. It is sectional drawing corresponding to FIG. 2 which shows the fire prevention shutter apparatus 1-4 concerning Example 5 of this invention. FIG. 11A is a cross-sectional view corresponding to FIG. 2 showing a fire shutter device 1-5 according to a sixth embodiment of the present invention, and FIG. 11B is a cross-sectional view taken along the line bb of FIG. 11A. is there. It is sectional drawing corresponding to FIG. 2 which shows the fire shutter apparatus 1-6 concerning Example 7 of this invention. It is sectional drawing corresponding to FIG. 2 which shows the fire shutter apparatus 1-7 concerning Example 8 of this invention. It is sectional drawing corresponding to FIG. 2 which shows the fire shutter apparatus 1-8 concerning Example 9 of this invention. It is sectional drawing corresponding to FIG. 1 which shows the fire shutter apparatus 1-9 concerning Example 10 of this invention. It is sectional drawing which shows the Example of the locking mechanism which prevents that the winding apparatus 5 of the fireproof screen 4 falls carelessly. FIG. 17 is a cross-sectional view illustrating a state where the lock mechanism of FIG. 16 is manually unlocked.

Explanation of symbols

1-1.1-9 Fireproof shutter device 1a device body 1b housing chamber 1c through hole 1d screw hole 2 through passage 2a opening 2b floor surface 3 top device 3a end surface (metal frame)
3c through hole 4 Fireproof screen 4a Screen body 4b Evacuation opening 4c · 4d Auxiliary screen (second fireproof screen)
4f Weight 5 Winding device 6 Electric motor 7 Guide column 8 Handrail 9 Chain 10 Connecting device 11 Car body (vehicle)
11a bolt hole 12 end face 13 mounting bolt 14 mounting bolt 15 adapter 15a bolt hole 15b external thread 16 connecting plate 17, 17 'retaining member 17a eyelet 17b protrusion 17c bolt nut 18 reinforcing cross 31 lock mechanism

Claims (11)

Made of cloth that is provided between the end face of the hood device that covers the periphery of the through-roadway between railway vehicles and the end face of the car body, is housed on the hood device in a rolled up state, and hangs down in the event of a fire to block the through-way With fireproof screen,
The fireproof shutter device between railway vehicles, wherein the fireproof screen is configured to be able to pass even when the through-passage is blocked.   A roll-up storage portion of the fireproof screen is disposed on the hood device, and a pair of left and right refractory screen guide pillars are disposed on both sides of the through passage between the end surface of the hood device and the end surface of the vehicle body. The fire shutter device between railway vehicles according to claim 1, wherein the fire shutter device is disposed in a vertical direction across the vehicle.   The fireproof screen has a vertically long opening at a central portion in the width direction that has a constant opening width in the vertical direction and allows passage of people, and the second fireproof screen is provided on at least one of the front and rear surfaces of the opening. The fire shutter device between railway vehicles according to claim 1 or 2, wherein the opening is provided so as to be openable and closable.   The lower ends of the fireproof screen sleeves located on both sides of the opening are connected by a connecting member, and the connecting member is connected to the floor surface of the through-passage through an adsorbing member such as a magnet, a magnetic body, a hook, or a cloth fastener. The fire shutter device between railway vehicles according to claim 3, which is fixed to the rail.   The guide column is provided with a groove having a concave cross section in the vertical direction, and a guide portion that engages with an insertion port portion of the guide column to prevent the guide column from being pulled out on both sides of the fireproof screen. The fire shutter device between railway vehicles according to any one of claims 2 to 4, wherein the shutter device is protruding.   The fire shutter device between railway vehicles according to claim 5, wherein the upper and lower intervals of the guide portions are made unequal.   The guide column is inclined outwardly so that the distance between the opposing insertion ports gradually increases from the upper end to the lower end, and the guide portion of the fireproof screen is inserted into the inclined guide column. The fire shutter device between railway vehicles according to claim 5 or 6, wherein the fire shutter device extends stepwise from the upper end to the lower end along the mouth.   A magnet, a magnetic material, a hook or a cloth fastener is attached to the lower end of the second fireproof screen directly or via a connector that melts at a predetermined temperature, and is melted at a predetermined temperature at the upper part of the fireproof screen or the upper part of the through passage. The fire shutter device between railway vehicles according to any one of claims 3 to 7, wherein the shutter member is detachably attached to a counterpart member attached via a tool.   The fire shutter device between railway vehicles according to any one of claims 3 to 7, wherein a weight body is provided at a lower end of the second fireproof screen, and a fire-resistant hanging curtain is connected to the bottom of the weight body.   The fire shutter device between railway vehicles according to any one of claims 1 to 9, wherein at least one of the fireproof screen and the second fireproof screen is made of silica cloth.   The fireproof shutter device between railway vehicles according to any one of claims 1 to 10, wherein a part of the fireproof screen and the second fireproof screen is configured by a see-through member or a translucent screen.

Images