FI127685B - Structure for dividing a vehicle into sections - Google Patents

Abstract

The invention relates to a structure for dividing a vehicle into compartments. In the design presented for dividing the vehicle into compartments there is a compartmentalizing fire protection curtain. The fire protection curtain is stored around a curtain roll essentially in the horizontal plane of a passage. In conjunction with the fire protection curtain, a weight bar is arranged for the heavy-duty roll-down of the fire protection curtain from the curtain roll on the passage. On each side of the passage there is a vertical mechanism in which the weight bar is fixed at its ends. The structure further includes a synchronization mechanism for controlling the curtain roll and the vertical mechanisms to move so that, as the curtain roll rotates, the weight rod moves in the vertical direction as each end of the weight rod moves in the same direction at the same speed and vice versa.

Description

Structure for partitioning the vehicle

Background of the invention

The invention relates to a structure for partitioning a vehicle.

For fire safety reasons, vehicles must be divided into separate fire compartments at specified intervals. Such a requirement for division into fire compartments exists, for example, for wagons of rail vehicles, such as train wagons and metro train wagons.

Typically, division into fire compartments takes place using fire doors. Problems in the vehicle are caused by vehicle vibration as well as vehicle braking and acceleration. In addition, the movement of the vehicle uphill and downhill 10 and the tilting of the vehicle in bends cause problems. In all these situations, the structure for partitioning the vehicle must be reliable. In addition, the structure should be as simple and light as possible. The structure must be able to spread the fire from one compartment to another in all operating situations. On the other hand, the structure must also enable the transition from one compartment to another in the event of an emergency. Under normal circumstances, the structure15 should allow the smoothest possible transition and movement in the vehicle from one compartment to another. KR 20080007917 A discloses a fire protection curtain, a curtain roll for storing a fire protection curtain in a substantially horizontal plane and a weight bar fitted in connection with the fire protection curtain to lower the fire protection curtain from the curtain roll by gravity.

Brief description of the invention

It is an object of the present invention to provide a new type of structure for partitioning a vehicle.

The solution according to the invention is characterized by what is stated in the independent claim. Some embodiments of the invention are set out in the dependent claims.

In the structure shown, the compartment for the compartmentation of the vehicle has a compartment iva fire protection curtain. The fire protection curtain is stored on the passageway in a substantially horizontal plane around the curtain roll. In connection with the fire protection curtain, a weight bar is arranged for lowering the fire protection curtain by gravity from the curtain roll down to the passageway 30. There is a vertical mechanism on each side of the passageway to which the weight bar is attached at its ends. The structure further includes a synchronizing mechanism for controlling the movement of the curtain roll and the vertical mechanisms so that as the curtain roll rotates, the weight bar moves vertically with both ends of the weight bar moving in the same direction and vice versa35. Such a structure is reliable in operation. Further, the structure is ra

20165154 prh 20 -08- 2018 light in field and enables easy movement between vehicle compartments in a normal situation and, if necessary, movement from one compartment to another also in a fire situation.

The idea of one embodiment is that the synchronization mechanism comprises means for mechanically connecting the vertical mechanisms and the curtain roll. In this case, the synchronization mechanism is particularly reliable in operation.

The idea of one embodiment is that the vertical mechanisms are mechanically connected to each other by means of a curtain roller. In this case, additional mechanical structures between the vertical mechanisms are avoided.

The idea of one embodiment is that the structure has an adjustment mechanism to compensate for the change in circumferential speed caused by the fire protection curtain wound on the curtain roll. In this case, the fire protection curtain winds from and to the curtain roll smoothly and reliably.

Brief description of the figures

Some embodiments of the invention are described in more detail in the accompanying drawings, in which:

Fig. 1 schematically shows a structure for partitioning a vehicle in the lower position of the fire curtain,

Fig. 2 shows the structure according to Fig. 1 in the upper position of the fire curtain,

Fig. 3 is a section A-A of Fig. 1,

Fig. 4 is a section B-B of Fig. 1,

Fig. 5 is a section C-C of Fig. 1,

Fig. 6 is a section D-D of Fig. 1,

Fig. 7 is a section E-E and

Fig. 8 is a view corresponding to Fig. 3 of another embodiment in greatly simplified form.

Detailed description of the invention

Figure 1 shows a structure 1 for partitioning a vehicle. Figure 1 30 shows the structure of the fire protection curtain 2, the upper housing 3 and the side housings 4a and 4b.

Structure 1 is adapted to the vehicle at regular intervals to divide the vehicle into separate fire compartments. The vehicle to which the structure 1 is adapted can be, for example, a rail vehicle, i.e. for example a train car, a metro train car or a tram, or some other vehicle requiring compartmentation.

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In normal use, the fire protection curtain 2 is rolled into the upper housing 3 as shown in Fig. 2. In this case, the fire protection curtain is rolled around a substantially horizontal curtain roll. Structure 1 is adapted to the aisle of the vehicle. When the fire curtain is rolled into the upper housing, the passage along the 5 corridors from one compartment to another is unobstructed.

The fire protection curtain can be kept in the upper case around the curtain roll, for example electrically by utilizing a solenoid, electromagnet or electric motor 5, for example. down by gravity. The lowering of the fire protection curtain 2 can also take place, for example, by giving the motor 5 a control command to lower the fire protection curtain 2, or from a smoke or fire sensor, for example, a control command to lower the fire protection curtain 2 or a control command

The fire protection curtain 2 can also be held in the upper housing around the curtain roll, for example by mechanical holding means. These means may, for example, have a heat-responsive mechanism which allows the fire curtain to lower if necessary.

In order to prevent the fire protection curtain 2 from descending dangerously quickly, a braking mechanism can be fitted to the structure 1, which slows down the descent of the fire protection curtain 2. Such a brake mechanism may be, for example, a viscose brake which slows down the rotation of the curtain roller.

Preferably, the descent of the fire protection curtain 2 is slowed down by adapting the motor 5 to act as a generator, by means of which the movement of the fire protection curtain 2 is slowed down. The solution can be implemented, for example, in such a way that when the power supply to the structure 1 is interrupted, the motor 5 acts as a generator, which starts to produce electricity when the fire protection curtain 2 starts to descend by gravity.

The electricity generated by the generator is fed to a control circuit, which control circuit controls the lowering of the fire protection curtain 2 in a controlled manner. By using the motor 5 as a generator to slow down the descent of the fire protection curtain 2, the use of a separate deceleration device is avoided.

The fire protection curtain 2 is a material which is able to withstand a certain temperature for a certain time. For example, the requirement may be 1000 ° C for one hour. Furthermore, the fire protection curtain 2 is of such a material that it is a roll

20165154 PRH 20 -08- 2018

Can be left around the curtain roll. The fire protection curtain 2 can be, for example, a coated fiberglass fabric.

Naturally, the entire structure 1 must withstand the temperatures determined for compartmentation for a certain period of time. Thus, for example, the slits of the housings 3, 4a and 4b through which the fire protection curtain 2 passes can be provided, for example, with an expandable fire seal which seals these slits as the temperature rises and thus ensures the structure 1 as a partition fire.

The weight bar 6 is attached to the vertical mechanism at each end. Such a vertical mechanism can be arranged, for example, inside the side housings 4a and 4b. The structure 1 further comprises a synchronizing mechanism for controlling the movement of the curtain roll inside the upper housing 3 and the vertical mechanisms inside the side housings 4a and 4b so that as the curtain roll rotates, the weight bar 6 moves vertically with both ends of the weight bar 6 moving in the same direction. Furthermore, when the weight15 bar 6 moves vertically or is moved vertically, said synchronization mechanism causes the curtain roll to rotate. With such a solution, the structure 1 also operates reliably in a vehicle where it is subjected to vibration and vehicle braking and acceleration. In addition, the structure works reliably, for example, at an inclination of ± 10 ° and on inclines of ± 5 °, as well as in combinations of these. Furthermore, the weight bar 6 remains constantly parallel to the axis of the curtain roller as it moves.

The curtain roller and the vertical mechanisms can be synchronized, for example, electrically so that the control system controls them to operate simultaneously at the desired speeds of movement and rotation. More preferably, however, the synchronization mechanism comprises means for mechanically connecting the vertical mechanisms and the curtain roll. In this case, the synchronization mechanism also works reliably, for example during a power failure.

Referring now to Figures 3 to 6, a mechanical solution for synchronizing the vertical mechanisms and the curtain roll is shown. In this solution, the vertical mechanisms are mechanically connected to each other by means of a curtain roller 7.

As shown in Fig. 4, the weight bar 6 is connected at each end by a coupling piece 8 to a toothed belt 9. The toothed belt 9 rotates vertically around the upper belt 35a and the lower pulley 10b, for example, as illustrated in Fig. 3. A first synchronizing gear 11 is connected coaxially with the upper pulley 10a.

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A second synchronizing gear 12 is connected to the curling roller 7. The first synchronizing gear 11 and the second synchronizing gear 12 are connected together, whereby as the curling roller 7 rotates, the toothed belt 9 moves vertically and vice versa.

The structure according to Figure 6 is thus at each end of the curtain roll 7. In this way, the curtain roller 7 mechanically connects the toothed belts 9 at each end of the weight bar 6. The upper pulleys 10a and the lower pulleys 10b, respectively, could, if desired, also be connected to one another by fitting them to a common shaft. However, this would result in an extra shaft in the structure, Ιοί 0 ten connecting the pulleys 10a to each other via the curtain roller 7 simplifies the structure.

Instead of the toothed belts 9, the vertical mechanism may be, for example, a wire or a low-threaded screw or some other similar mechanism suitable for the purpose. In the solution shown, the vertical mechanisms are mechanically connected to each other via the upper part of the structure. The vertical mechanisms could also be mechanically connected to each other via the lower part of the structure. In this case, however, changes would also have to be made to the floor structures of the vehicle.

As shown in Fig. 1, a handle 20 can be fitted to the lower part of the fire protection curtain 2. The handle 20 can be, for example, of the same material as the fire protection curtain 2 and the handle 20 can be sewn onto the fire protection curtain 2, for example. Thanks to the synchronization mechanism shown, the manual movement of the fire protection curtain 2 and thus the vertical movement of the weight bar 6 also moves the vertical mechanisms, which in turn further rotates the curtain roll 7. Thus the fire protection curtain 2 rolls smoothly on the curtain roll 7.

The handle 20 is preferably arranged parallel to the axis of the curtain roll 7. In this case, the handle 20 does not substantially cause a thicker point around the curtain roll 7 as the fire protection curtain 2 wraps around it.

Fig. 7 illustrates that when the fire protection curtain 2 is raised around the curtain roll 7, the circumferential speed of the roll formed by the curtain roll 7 and the fire protection curtain 2 changes under the effect of the fire protection curtain 2 on the curtain roll 7. When the fire protection curtain 2 is wrapped around the curtain roll 7, the circumferential speed of the roll is then higher than the rise speed of the weight bar 6. In this case, the fire protection curtain tends to tighten.

Instead, when the fire protection curtain 2 is in the lower position, for example as illustrated in Fig. 3, the circumferential speed of the roller is lower than the weight6.

20165154 PRH 20 -08- 2018 gon 6 ascent rate. For this reason, it is preferable to fit an adjustment mechanism to the structure 1 to compensate for this change in circumferential speed. If there is no compensation, for example when manually raising the fire protection curtain 2, initially the fire protection curtain 2 would wrap very loosely around the curtain roll 7 and when the fire protection curtain ho5 ho 2 is in the upper position, the fire protection curtain 2 could be overtightened.

For example, in the embodiment illustrated in Figures 3 and 7, the fire protection curtain 2 rotates around the length compensation roller 13 after leaving the curtain roll 7. The length compensation roller 13 is arranged so that its position is movable. The length compensation roller 13 can be fitted to the upper housing 3, for example 10, for example by means of a spring. The embodiment illustrated in Figures 3 and 7 has a length compensation roller 13 at the end of the arm 14. The arm 14 is adapted to pivot about the shaft 15. A torsion spring 16 is arranged in connection with the shaft 15. The torsion spring 16 tends to turn the arm 14 so that the length compensation roller 13 is as high as possible. Thus, the length compensating roller 15 13 tightens the fire protection curtain 2 more tightly when the curtain roll 7 does not have much fire protection curtain 2 intertwined, for example according to Fig. 3. Again, when the curtain roll 7 has a larger amount of fire protection curtain 2 intertwined, the fire protection curtain 2 is tightened and the spring 16 allows the length compensation roller 13 to fall downward. Thus, the fire protection curtain 2 is not overtightened 20 also in the situation shown in Fig. 7.

Figure 8 illustrates that the spring 16 can be arranged either in connection with the length compensation space 13 or, for example, in connection with the curtain roll 7. Furthermore, if desired, the spring 16 can be arranged, for example, between the weight bar 6 and the toothed belt 9. In the latter case, however, it is possible, for example when lifting the fire protection curtain 2 unilaterally, such a situation that one end of the weight bar 6 rises more than the other. Thus, it is advantageous to fit the flexibility mechanism in the vicinity of the upper part of the structure 1.

For example, Figure 4 shows a detail of how the edge of the fire protection curtain is fitted in connection with the side housing 4a, 4b. In this embodiment, a curtain side support bar 17 is arranged inside the side housing 4a, 4b. The side support bar 17 can be fixed to the floor, for example. The coupling piece 8 has an opening, whereby the coupling piece 8 moves up and down around the side support rod 17. In the fire protection curtain 2, on the other hand, curtain passages 18 are formed, which are arranged around the side support bar 17. The coupling piece 8, the curtain passages 18 and the side support rod 17 are all arranged inside the side housing 4a, 4b. The fire protection curtain 2 passes laterally through a slot 19 in the housing 4a, 4b. The slot 19 is smaller than the side support rod 17. In this way, the fire protection curtain remains straight and sturdy in a simple manner.

As shown in Fig. 5, the electric motor 5 can be arranged inside the curtain roll 7. The rotational force of the motor can be transmitted to the curtain roller 7 via a planetary gearbox which can be fitted inside the curtain 5. The motor 5 can also be arranged outside the curtain roll 7, and the motor can then be connected to the curtain roll 7, for example with an angle gear.

It will be apparent to one skilled in the art that as technology advances, the basic idea of the invention can be implemented in many different ways. The invention and its embodiments 10 are thus not limited to the examples described above but may vary within the scope of the claims.

Claims (8)

claim A structure for dividing a vehicle into compartments, the structure (1) comprising a sectional fire protection curtain (2), a curtain roller (7) for storing the fire protection curtain (2) in the upper part of the structure (1) substantially in a horizontal plane, a weight bar ( 6) arranged in connection with the fire protection curtain (2) for gravely rolling down the fire protection curtain (2) from the curtain roller (7) and on both sides of the structure (1) a vertical mechanism, characterized in that the weight bar (6) is fixed at its ends in vertical the mechanisms and structure (1) comprise a synchronization mechanism for controlling the curtain roller (7) and the vertical mechanisms to move so that, as the curtain roller (7) rotates, the weight bar (6) moves in the vertical direction and each of the weight bars (6) moves in the same direction at the same speed and correspondingly as the weight bar (6) moves vertically, the curtain roller (7) rolls. The structure of claim 1, wherein the synchronization mechanism comprises means for mechanically joining the vertical mechanisms and the curtain roller (7). The structure of claim 2, wherein the means for mechanically joining the vertical mechanisms and the curtain roller (7) are arranged in the upper part of the structure (1). 4. A construction according to claim 3, wherein the vertical mechanisms are mechanically coupled to each other via the curtain roller (7). 5. A construction according to any one of the preceding claims, in which the vertical mechanism comprises a toothed belt (9), in which the weight bar (6) is attached and pulleys (10a, 10b), around which the toothed belt (9) is arranged to run. 6. A construction according to any one of the preceding claims, in which there is a control mechanism arranged to compensate for the change in the peripheral speed caused by the fire protection curtain (2) wound on the curtain roller (7). The structure of claim 6, wherein the fire protection curtain (2) is arranged to run downwardly from a rolling shaft around a longitudinal compensation roller (13) and the longitudinal compensation roller (13) is arranged to be movable in its position. The structure of claim 6 or 7, wherein the control mechanism comprises a spring (16).