JPS6243919B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inflatable chute or slide device (hereinafter simply referred to as a slide device), and more specifically, it can be used in buildings, elevated bridges, ships, etc., and is particularly applicable to ships in distress. The present invention relates to a slide device suitable for quickly and safely evacuating passengers to a lifeboat.

2. Description of the Related Art Conventionally, inflatable slide devices used for evacuation purposes, for example, on ships, have been constructed as shown in FIGS. 1 to 3.

That is, the conventional slide device 1 for a ship includes a slide portion 3 constituted by a main air chamber 2, and a platform portion 5 constituted by a float air chamber 4 attached to the slide portion 3. When the slide device 1 is in a belt-like state when contracted, it is wound in a so-called sushi-maki shape and stored in a storage container 6 divided into two parts. This storage container 6 is a pedestal 8 installed on the deck of a ship's hull 7, and parallel rails 9a, 9 are spaced apart and are inclined toward the sea surface.
It is placed on the rail of the pedestal 8 having the b.

This frame 8 has stopper rods that are pivotally attached to the sides of both rails to prevent the storage containers 6 on the rails 9a and 9b from rolling and falling due to their inclinations, and extend tangentially in contact with the surrounding side surfaces of the storage containers 6. 10 are provided. The upper ends of these two stopparoids 10 are connected by a connecting rod 11,
One end of each of detachment wires 12a and 12b extending from the storage container 6 side is fixed to this connection rod 11. A cylinder 14 for inflating the slide section 3 and the platform section 5 via a filling hose 13 is disposed in the space below the rails 9a and 9b constituting the pedestal 8, and an opening/closing part of the cylinder 14 is provided. One end of the operating cable 15 is connected to the storage container 6, and the other end of the operating cable 15 is connected to the storage container 6.

A storage container 6 supported on such a pedestal 8
When using the slide device 1, the breakaway wire 12a,
By automatically or manually opening 12b, the support of the stopper rod 10 is released, and the storage container 6 rotates and falls on the rails 9a, 9b toward the sea surface. As a result, the slide portion 3 and the platform portion 5 stored in the storage container 6 in a sushi roll shape are unraveled and the sea surface 19
(Figure 3). At this time, as shown in FIG. 2, the upper end of the slide section 3 is connected to the pedestal 8 by two hanging belts 17 before being stored in the storage container, and therefore, the upper end of the slide section 3 is connected to the frame 8 by two hanging belts 17.
It becomes a fixed end to. Furthermore, when the storage container 6 falls 1 to 3 m from the platform 8, the operating cable 15 is pulled, and as a result, the tank part of the cylinder 14 is opened and the main air chamber 2 of the slide part 3 is connected to the main air chamber 2 of the slide part 3 via the filling hose 13. Float air chamber 4 in the foam section 5
Gas is supplied to these and they begin to expand and retain their shape.

However, when such a conventional slide device is released and expanded, the platform portion 5 dropped onto the sea surface 19 is exposed to the surface of the sea as shown in FIG. The slide portion 3 may become tangled as shown in FIG. 2 or may become twisted in the middle. Even if the air chamber is filled in such a state, the air chamber may not be filled sufficiently, or even if it is filled sufficiently, the air chamber may remain twisted, bend toward the hull 7 side, or the platform may be damaged. There was a concern that the form portion 5 would be turned upside down, causing serious trouble during emergency use. In addition, when the device is used particularly at sea with fast currents, if the platform portion 5 is pressed against the hull 7, there is a concern that the same trouble as described above may occur.

Therefore, it is an object of the present invention to prevent the retracted slide section and the platform section attached to its lower end from bending due to the wind or the like when dropped from a high place, thereby interfering with the filling of the slide section. An object of the present invention is to provide an inflatable slide device that can be expanded into a predetermined complete shape without causing any damage.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The inflatable slide device of the present invention will be described in more detail below with reference to preferred embodiments particularly for use in ships, as shown in the accompanying drawings. In the embodiment of the present invention, parts that are the same as or correspond to those of the conventional device described above are given the same reference numerals, and the explanation thereof will be omitted.

4-8, an inflatable slide apparatus according to one embodiment of the present invention is generally designated by the reference numeral 20. This slide device 20 includes a slide portion 3 formed by a main air chamber 2 and a platform portion 5 formed by a float air chamber 4 attached to the slide portion 3, similar to the conventional device described above. I'm here.

The slide device 20 in this embodiment has an upper end 21a that is the end of the slide portion 3 on the hull 7 side, that is, the fixed end.
is connected to the pedestal 8 by two suspension belts 17, similar to the conventional device shown in FIGS. 2 and 3. Also, the free end 22a of the platform section 5 connected to and attached to the lower end 21b of the slide section 3, that is, the side where the platform section 5 is attached to the lower end 21b of the slide section 3 is connected to one end 22b.
In this case, the opposite end and the upper end 21a of the slide portion 3, that is, the fixed end, are connected close to each other by two connecting portions 23 arranged in the width direction. Therefore, when the slide device 20 is dropped from the pedestal 8 and the slide portion 3 and the platform portion 5 are not yet filled with air, the slide portion 3 is folded in half as shown in FIG. It is suspended on the side of the ship. In other words, when the slide device 20 is not in use, the slide device 20 is folded in half and hung from the lower end, that is, the folded portion, and is stored in the storage container 6 in a rolled shape.

A connecting portion 23 that connects the fixed end 21a of the slide portion 3 and the free end 22a of the platform portion 5.
is shown in FIGS. 5 and 6. The connecting portion 23 includes one connecting piece 25a having a convex insertion portion 24a, and a recessed insertion port 24b that fits into the insertion portion 24a. and the other connecting piece 25b.
When the insertion portion 24a of one connection piece is fitted into the insertion opening 24b of the other connection piece, the insertion portion 24a of both of these connection pieces 25a, 25b is inserted.
A through hole 26 is formed that passes through both connecting pieces. A cutting pin 27 is disposed in this through hole 26, and thereby both connecting pieces 25a, 2
5b remains connected. This cutting pin 2
Reference numeral 7 is made of something such as a spring pin that breaks the connection under a certain load when both the connecting pieces 25a and 25b are pulled in opposite directions. The other connecting piece 25
On both sides of the through hole 26 in b,
A cover 28 is provided to prevent the cutting pin 27 from coming out of the through hole 26 when the slide device 20 is stored.
is installed. The cover 28 may be in the form of a tube so as to extend over the connecting piece 25b or 25a and surround the periphery of the connecting piece 25b or 25a.

Each connecting piece 25a, 25b connects to the mounting belt 30a, 30 via a shackle 29a, 29b, respectively.
b, and these mounting belts 30a, 30b
are the hull side ends 21 of the slide section 3, respectively.
a and the free end 22a of the platform portion 5 by sewing thread 32 to mounting seats 31a and 31b made of rubber cloth, which are firmly fixed with rubber glue or the like.

Next, the slide device 2 of the embodiment according to the present invention
The operation of 0 will be explained.

In this slide device 20, as shown in FIG. 4, the fixed end 21a of the slide portion 3 and the free end 22a of the platform portion 5 are closely connected to each other by a connecting portion 23. In its contracted state, the slide portion 3 is bent in the middle. In this state, the slide 20 is wound up into a sushi-maki shape from the bent portion of the slide portion 3 and stored in the storage container 6.

Such a storage container 6 is usually supported by the above-mentioned pedestal 8, and when the slide device 20 is used, the release wires 12a, 12b are automatically or manually released, and the storage container 6 rotates and falls from the pedestal 8. The slide device 20 is unrolled from the inside and suspended in the state shown in FIG. 4. As already explained, when the storage container 6 falls a certain distance, the operating cable 15
Since the bottom part of the cylinder 14 is opened,
Filling also begins during unwinding of the slide device 20.

The main air chamber 2 of the slide portion 3 of the slide device 20 and the float air chamber 4 of the platform portion 5 communicate with each other, and side walls 16 serving as handrails are provided on both side edges of the slide portion 3 to form an upper air chamber. This upper air chamber also communicates with the main air chamber 2. Therefore, as the filling progresses, the whole expands and retains its shape, folded in two, as shown in Figure 7.
As the pressure in the air chamber increases and the expansion and shape retention proceed, the distance between the fixed end 21a of the slide section 3 and the free end 22a of the platform section 5, which were folded in half and approached each other, becomes tense. , the tension interval approaches the constraint dimension L of the connecting portion 23 (approximately 20 to 500 mm in this embodiment). Then, as the filling progresses further and the internal pressure of each air chamber increases, the tensile force P acting on the connecting portion 23 increases until the two folds of the slide portion 3 are released and almost the entire shape can be maintained even if the slide portion 3 is expanded. When the force P corresponding to the internal pressure (100 to 150 mmHg) of
It cannot withstand the tension caused by a and 25b and is cut. As a result, the connecting pieces 25a, 25b are separated, and as a result, the slide section 3 is released from its two-fold fold, and the platform section 5 is expanded toward the sea surface 19, and the continuous filling during and after that causes The slide device 20 is inflated and retained its shape to a fully usable internal pressure as shown in FIG.

By the way, when the slide device 20 almost completely expands and maintains its shape as described above, the slide portion 3 tends to become straight due to the rigidity of the slide portion 3 due to its expansion. Therefore, the connecting end 22b of the platform part 5 connected to the slide part 3
was pushed into the sea as shown in Figure 9,
There was a drawback that the platform section 5 rotated and stood upright. In order to prevent this, one end of an elastic member 33 is attached to the connecting end 22b of the platform section 5, and the other end of the elastic member 33 is connected to the slide section 3. The elastic member 33 is made of, for example, a rubber tape, and acts to narrow the gap between the connecting end 22b of the platform portion 5 and the slide portion 3 by applying a predetermined tension T. As a result, the slide device 20 is maintained in a completely usable condition.

As described above, according to the slide device of the present invention, since the device is folded in two and connected by the connecting portion, when the slide device is dropped from the stored state, two
The cutting pin of the connecting part is suspended in a folded state, and in this state it is filled with air and undergoes initial expansion and shape retention, and then, after the expansion and shape retention has progressed to a certain extent, the cutting pin of the connecting part is pulled by the expansion force due to the internal pressure. As the slide device expands due to destruction, headwinds, crosswinds,
Alternatively, it is possible to prevent inconveniences such as the slide section being twisted and expanding due to tidal currents, or the platform section being turned in the opposite direction or bent toward the hull side. Moreover, since the platform part and the slide part are connected by the elastic member, the problem that the platform part is not stable in an upright position can be solved. This makes it possible to improve the reliability of complete expansion during use of the slide device.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the storing and dropping device of the inflatable slide device, Fig. 2 is a sectional view of a storage container schematically showing the state in which the conventional inflatable slide device is stored, and Fig. 3 is the conventional slide device. Fig. 4 is a side view showing a state in which the inflatable slide device according to an embodiment of the present invention is dropped from the hull and suspended from the hull deck and is not yet fully inflated. FIG. 5 is a top view of the inflatable slide device according to the present invention in the state shown in FIG. Sectional view showing the device, No. 7
The figure is a fragmentary side view showing the vicinity of the detachment device when the inflatable slide device according to the present invention in the state shown in FIG. 4 has been expanded to a certain extent, and FIG. FIG. 9 is a side view showing a state in which the platform is fully expanded and maintained on the side, and FIG. 9 is a side view similar to FIG. 2... Main air chamber, 3... Slide section, 4... Float air chamber, 5... Platform section, 20...
Inflatable slide device, 21a...fixed end, 22a...
...Free end, 22b... Connection side end, 23... Cutting device, 25a, 25b... Connecting portion, 27... Cutting pin. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] 1. In an inflatable slide device comprising a main air chamber constituting a slide portion and a float air chamber constituting a platform portion attached to the lower end of the slide portion, the fixed end of the main air chamber and the float air chamber at least one connecting portion comprising a pair of connecting pieces having a convex insertion portion and a concave insertion opening provided at a free end of the connecting piece, the insertion portion of the connecting piece and the insertion opening; are inserted into a hole passing through the main air chamber and the float air chamber, and are engaged by a cutting pin that can be cut by a tensile force of the pair of connecting pieces due to expansion of the main air chamber and the float air chamber during use, An inflatable slide device characterized in that a vicinity of the free end of the slide portion and an end of the platform portion closer to the slide portion are connected by an elastic member having tension.