WO1985002156A1 - Inflatable hollow body - Google Patents

Inflatable hollow body Download PDF

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Publication number
WO1985002156A1
WO1985002156A1 PCT/EP1984/000364 EP8400364W WO8502156A1 WO 1985002156 A1 WO1985002156 A1 WO 1985002156A1 EP 8400364 W EP8400364 W EP 8400364W WO 8502156 A1 WO8502156 A1 WO 8502156A1
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WO
WIPO (PCT)
Prior art keywords
hollow body
expansion
expansion body
hollow
foldable
Prior art date
Application number
PCT/EP1984/000364
Other languages
German (de)
French (fr)
Inventor
Rupert Biermann
Original Assignee
Hoch, Karl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoch, Karl filed Critical Hoch, Karl
Publication of WO1985002156A1 publication Critical patent/WO1985002156A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00—Life-saving in water
    • B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
    • B63C9/081—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like having compartments comprising elements which are filled with gas by deployment, e.g. sponge-like elements

Definitions

  • the invention relates to an inflatable hollow body with a flexible outer skin, which can be expanded from a folded position under the action of a spreading device into an extended position, and with a valve which allows air to enter the interior of the hollow body.
  • Such hollow bodies can e.g. used in inflatable boats, lifebuoys, floating bodies or the like.
  • Conventional inflatable boats or lifebuoys have to be inflated with a pump, for example, whereby the time factor also plays an important role.
  • an inflatable hollow body (DE-C-881 163) with a cover made of a solid (non-elastic) and airtight material is already known, in which a collapsible skeleton, for example a pressure jet spring, is accommodated, the cover being exclusively the inflow of air in the hollow body permitting valve is assigned.
  • a collapsible skeleton for example a pressure jet spring
  • the compressive forces inherent in the skeleton can be used to expand this hollow body. It is therefore not possible with such an embodiment to build up a correspondingly higher pressure and, moreover, such an arrangement does not offer any security if the casing of the hollow body is damaged.
  • the object of the present invention is to create an inflatable hollow body in which a relatively high air pressure can be built up without pumps or compressed gas containers and by means of which optimal safety is ensured.
  • This is achieved according to the invention in that an expansion body is provided in the interior of the hollow body, the volume of which can be increased in order to increase the pressure in the hollow body and which is secured against compression.
  • a hollow body of this type is ready for use in the shortest possible time. It is no longer necessary to hit any fump device.
  • the expansion body for increasing the pressure can be anchored in the hollow body in such a way that this and the hollow body in the folded position result in a compact, load-bearing facet.
  • Another advantage over a conventional floating body is that the expansion body anchored in the hollow body also functions as an additional floating and buoyancy body in the event of damage to the outer hollow body.
  • the expansion body is expediently designed as a corrugated hose in order to make it easy to fold and pull out.
  • volume is draggable. This ensures rapid readiness for use, since after the hollow body has automatically expanded, the expansion body can be quickly brought into the extended position which increases the pressure.
  • the traction element is accommodated in a flexible hose which is arranged between the end wall part of the expansion body, which is designed as a folded hose, to which the traction element is fastened, and the wall part of the hollow body, through which the traction element is guided out of it, where in the case of the foldable and / or elastic hose with the expansion body than you are connected to the wall part of the hollow body in a gas-tight manner.
  • the expansion body is secured by a spiral made of elastic, rotatable material which is arranged in the interior thereof and which bears against the wall of the expansion body. This prevents the expansion body from being pressed in when the arrangement is pulled apart.
  • the expansion body By pulling out the expansion body inside the hollow body (floating body), the pressure inside it is increased, the expansion body proving to be a load-bearing unit, even if the outer skin of the hollow body is completely damaged, the expansion body arranged inside the hollow body gives sufficient buoyancy to be able to To prevent sinking.
  • the length or the diameter of the expansion body can be adapted accordingly to the volume of the respective hollow body.
  • An arrangement for increasing the internal pressure is firmly connected to a hollow body designed, for example, as an inflatable boat.
  • This arrangement according to the invention is also suitable as a rescue device, the advantage over a conventional lifebuoy being the minimal space requirement.
  • the hollow body according to the invention can also be used as an underwater or surface recovery device.
  • FIG. 1 shows the hollow body according to the invention in the folded state
  • Fig. 2 shows the hollow body in its inflated shape
  • Fig. 3 shows the hollow body with the expansion body also extended.
  • the arrangement according to the invention essentially consists of a hollow body 9, which forms the outer boundary, an expansion body 1, the valves 3 and 11 and a tension element 4.
  • the expansion body 1 spans a coil 2 (coil spring) located inside the latter, which is formed from elastic, wire-shaped material.
  • the expansion body 1 is expediently designed as a corrugated hose.
  • the expansion body 1 can be pulled into its larger volume position (FIG. 3) with the aid of a pulling element 4.
  • This traction element 4 is received in a foldable hose 7, which is arranged between the end part of the expansion body 1, which is designed as a folding hose, to which the traction element 4 is fastened, and the wall part of the hollow body 9. Through this wall part of the hollow body 9, the tension member 4 is also guided out of it.
  • the foldable and / or elastic hose 7 is connected gas-tight to the expansion body 1 and you to the wall part of the hollow body 9.
  • an inlet and outlet valve 3 At one end of the expansion body 1 there is an inlet and outlet valve 3.
  • This valve 3 has the task of not allowing the air located inside the expansion body to escape when the expansion body 1 is pulled out.
  • the valve 3 can, however, be changed over to ent 1 air when pushing together the expansion body to give way.
  • the traction element 4 is then attached to the rear part of the expansion body 1, at the end of which there is a loop 5, in order to be able to lock it on a hook 6 when the device (FIG. 3) is pulled out.
  • the traction element 4 In order to ensure the sealing, the traction element 4 is surrounded by the expandable and / or foldable hose 7.
  • a coherent coil spring 10 is likewise inserted in the interior of the hollow body 9.
  • the number of coils depends on the size of the hollow body 9.
  • At least one safety valve 11 is provided in the outer skin 8 of the hollow body 9, through which air can escape when the hollow body 9 is folded (FIG. 1).
  • the expansion body 1 is anchored in such a way that it has enough space inside the coil 10 so that a smooth interlocking is ensured.
  • the safety valve (s) 11 also have the task of allowing air into the hollow body 9 when the hollow body 9 is spread apart and to prevent the escape of air. This spreading apart takes place after the security tapes 12 shown in FIG. 1 have been released.
  • the expansion body 1 is pulled apart using the pulling element 4, air penetrating through the valve 3 into the expansion body 1 designed as a corrugated hose (FIG. 3). Due to the increase in volume of the expansion body 1, the pressure inside the hollow body 9 is increased. This procedure results in the same state as this after inflating a hollow body.
  • the valves 3 and 11 are opened or switched so that air can escape from the expansion body 1 and the hollow body 9. After the compression against the force of the helix 10 and opposite to the helix 2, the safety bands 12 are fixed and the hollow body 9 is in its compact ready position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Tents Or Canopies (AREA)

Abstract

An inflatable hollow body (9) usable as a float comprises an outer flexible envelope (8) which may extend by passing from a folded state to an extended state by the actuation of an expansion device having the shape of a spiral (10). A valve (11) is provided to let air enter the hollow body (9). Inside the hollow body (9) there is provided an expansion body (1) of which the volume increases in the hollow body (9) and of which the compression is prevented by a spiral (2). The expansion body is connected to the outer atmosphere by means of a valve (3). The expansion body (1) is configured as a pleated hose and a traction member (4) provided with a loop (5) enables to pull it so that it assumes the position wherein its volume is maximum. The pulling member (4) is fixed in a foldable hose (7) arranged between the front wall portion of the function body (1) to which the pulling member (4) is secured and the wall portion of the hollow body (9) through which the pulling member (4) comes out. The foldable and/or elastic hose (7) is connected in a gas-tight relationship to the expansion body (1) as well as to the wall portion of the hollow body (9).

Description

Aufblähbarer Hohlkörper Inflatable hollow body
Die Erfindung bezieht sich auf einen aufblähbaren Hohlkörper mit einer flexiblen Außenhaut, die aus einer zusammengefalteten Lage unter der Wirkung einer Spreizvorrichtung in eine ausgedehnte Stellung ausweitbar ist, und mit einem den Eintritt von Luft in das Innere des Hohlkörpers gestattenden Ventil.The invention relates to an inflatable hollow body with a flexible outer skin, which can be expanded from a folded position under the action of a spreading device into an extended position, and with a valve which allows air to enter the interior of the hollow body.
Solche Hohlkörper können z.B. bei Schlauchbooten, Rettungsringen, Schwimmkörpern od. dgl. Anwendung finden. Herkömmliche Schlauchboote oder Rettungsringe müssen beispielsweise mit einer Fumpe aufgeblasen werden, wobei auch der Zeitfaktor eine wesentliche Rolle spielt.Such hollow bodies can e.g. used in inflatable boats, lifebuoys, floating bodies or the like. Conventional inflatable boats or lifebuoys have to be inflated with a pump, for example, whereby the time factor also plays an important role.
Ferner ist bereits ein aufblasbarer Hohlkörper (DE-C-881 163) mit einer Hülle aus einem festen (nicht elastischen) und luftdichten Material bekannt, in welchem ein zusammenlegbares Skelett, beispielsweise eine Drucksehraübenfeder aufgenommen ist, wobei der Hülle ein ausschließlich das Einströmen von Luft in den Hohlkörer gestattendes Ventil zugeordnet ist. Zum Expandieren dieses Hohlkörpers können die dem Skelett innewohnenden Druckkräfte ausgenützt werden. Es ist daher bei einer solchen Ausführung nicht möglich, einen entsprechend höheren Druck aufzubauen und außerdem bietet eine solche Anordnung keine Sicherheit, wenn die Hülle des Hohlkörpers beschädigt wird.Furthermore, an inflatable hollow body (DE-C-881 163) with a cover made of a solid (non-elastic) and airtight material is already known, in which a collapsible skeleton, for example a pressure jet spring, is accommodated, the cover being exclusively the inflow of air in the hollow body permitting valve is assigned. The compressive forces inherent in the skeleton can be used to expand this hollow body. It is therefore not possible with such an embodiment to build up a correspondingly higher pressure and, moreover, such an arrangement does not offer any security if the casing of the hollow body is damaged.
Die vorliegende Erfindung hat sich zur Aufgabe gestellt, einen aufblähbaren Hohlkörper zu schaffen, in welchem ohne Fumpen oder Druckgasbehälter ein relativ hoher Luftdruck aufgebaut werden kann und durch welchen eine optimale Sicherheit gewährleistet ist. Erfindungsgemäß gelingt dies dadurch, daß im Inneren des Hohlkörpers ein Expansionskörper vorgesehen ist, dessen Volumen zum Erhöhen des Druckes im Hohlkörper vergrößerbar ist und der gegen Zusammendrücken gesichert ist.The object of the present invention is to create an inflatable hollow body in which a relatively high air pressure can be built up without pumps or compressed gas containers and by means of which optimal safety is ensured. This is achieved according to the invention in that an expansion body is provided in the interior of the hollow body, the volume of which can be increased in order to increase the pressure in the hollow body and which is secured against compression.
Ein solcher Art ausgeführter Hohlkörper ist in kürzester Zeit einsatzbereit. Das Hitführen irgendwelchen Fumpgerätes ist somit nicht mehr erforderlich. Der Expansionskörper zur Erhöhung des Druckes kann so im Hohlkörper verankert werden, daß dieser und der Hohlkörper in zusammengefalteter Lage ein kompaktes, tragfähiges Faket ergeben. Als Vorteil gegenüber einem herkömmlichen Schwimmkörper ist ferner zu werten, daß der im Hohlkörper verankerte Expansionskörper auch als zusätzlicher Schwimm- und Auftriebskörper bei eventueller Beschädigung des äußeren Hohlkörpers in Funktion tritt.A hollow body of this type is ready for use in the shortest possible time. It is no longer necessary to hit any fump device. The expansion body for increasing the pressure can be anchored in the hollow body in such a way that this and the hollow body in the folded position result in a compact, load-bearing facet. Another advantage over a conventional floating body is that the expansion body anchored in the hollow body also functions as an additional floating and buoyancy body in the event of damage to the outer hollow body.
Der Expansionskörper ist zweckmäßig als Faltenschlauch ausgebildet, um ein einfaches Zusammenfalten und Ausziehen zu ermöglichen.The expansion body is expediently designed as a corrugated hose in order to make it easy to fold and pull out.
Weiters wird vorgeschlagen, daß der Expansionskörper mit Hilfe eines Zugorganes in seine Stellung mit größeremIt is also proposed that the expansion body with the help of a traction device in its larger position
Volumen ziehbar ist. Dadurch ist eine rasche Einsatzbereitschaft gewährleistet, da nach dem selbsttätigen Ausweiten des Hohlkörpers der Expansionskörper rasch in die den Druck erhöhende, ausgezogene Lage gebracht werden kann.Volume is draggable. This ensures rapid readiness for use, since after the hollow body has automatically expanded, the expansion body can be quickly brought into the extended position which increases the pressure.
Ferner ist erfindungsgemäß vorgesehen, daß das Zugorgan in einem fiatbaren Schlauch aufgenommen ist, der zwischen dem Stirnwandteil des als Faltenschlauch ausgeführten Expansionskörpers, an dem das Zugorgan befestigt ist, und dem Wandteil des Hohlkörpers angeordnet ist, durch den das Zugorgan aus diesem herausgeführt ist, wo bei der faltbare und/oder elastisch ausgebildete Schlauch mit dem Expansionskörper als euch mit dem Wandteil des Hohlkörpers gasdicht verbunden ist. Dadurch ergibt sich eine einwandfrei funktionierende und einfach handhabbare Konstruktion, so daß in kürzester Zeit ein einsatzbereiter, unter hohem Innendruck stehender Hohlkörper erzielbar ist.It is further provided according to the invention that the traction element is accommodated in a flexible hose which is arranged between the end wall part of the expansion body, which is designed as a folded hose, to which the traction element is fastened, and the wall part of the hollow body, through which the traction element is guided out of it, where in the case of the foldable and / or elastic hose with the expansion body than you are connected to the wall part of the hollow body in a gas-tight manner. This results in a perfectly functioning and easy-to-use construction, so that a ready-to-use hollow body under high internal pressure can be achieved in the shortest possible time.
Weiters wird vorgeschlagen, daß der Expansionskörper durch eine in dessen Inneren angeordnete Wendel aus elastischem, drehtförmigen Werkstoff, die gegen die Wandung des Expansionskorpers anliegt, gesichert ist. Dadurch wird bei auseinandergezogener Anordnung das Eindrücken des Expansionskorpers verhindert.It is further proposed that the expansion body is secured by a spiral made of elastic, rotatable material which is arranged in the interior thereof and which bears against the wall of the expansion body. This prevents the expansion body from being pressed in when the arrangement is pulled apart.
Durch das Ausziehen des Expansionskörpers im Inneren des Hohlkörpers (Schwimmkörpers) wird der Druck im Inneren desselben vergrößert, wobei der Expansionskörper sich als tragende Einheit erweist, iuch bei totaler Beschädigung der Außenhaut des Hohlkörpers ergibt der im Inneren des Hohlkörpers angeordnete Expansionskörper genügend Auftrieb, um ein Sinken zu verhindern.By pulling out the expansion body inside the hollow body (floating body), the pressure inside it is increased, the expansion body proving to be a load-bearing unit, even if the outer skin of the hollow body is completely damaged, the expansion body arranged inside the hollow body gives sufficient buoyancy to be able to To prevent sinking.
Die Länge oder der Durchmesser des Expansionskörpers kann dem Volumen des jeweiligen Hohlkörpers entsprechend angepaßt werden.The length or the diameter of the expansion body can be adapted accordingly to the volume of the respective hollow body.
Mit einem beispielsweise als Schlauchboot ausgebildeten Hohlkörper ist eine Anordnung zum Erhöhen des Innendruckes fest verbunden. Diese erfindungsgemäße Anordnung eignet sich auch als Rettungsgerät, wobei der Vorteil gegenüber einem herkömmlichen Rettungsring der minimale Platzbedarf ist. Der erfindungsgemäße Hohlkörper kann aber auch als Unter- bzw. Oberwasserbergungsgerät Verwendung finden. In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. Es zeigen: Fig. 1 den erfindungsgemäßen Hohlkörper in zusammengefaltetem Zustand; Fig. 2 den Hohlkörper in dessen aufgeblähter Form und Fig. 3 den Hohlkörper mit zusätzlich ausgezogenem Expansionskörper.An arrangement for increasing the internal pressure is firmly connected to a hollow body designed, for example, as an inflatable boat. This arrangement according to the invention is also suitable as a rescue device, the advantage over a conventional lifebuoy being the minimal space requirement. The hollow body according to the invention can also be used as an underwater or surface recovery device. In the drawing, an embodiment of the invention is shown schematically. 1 shows the hollow body according to the invention in the folded state; Fig. 2 shows the hollow body in its inflated shape and Fig. 3 shows the hollow body with the expansion body also extended.
Die erfindungεgemäße Anordnung besteht im wesentlichen aus einem Hohlkörper 9, der die äußere Begrenzung bildet, einem Expansionskörper 1, den Ventilen 3 und 11 sowie einem Zugorgan 4.The arrangement according to the invention essentially consists of a hollow body 9, which forms the outer boundary, an expansion body 1, the valves 3 and 11 and a tension element 4.
Der Expansionskörper 1 umspannt eine sich im Inneren desselben befindliche Wendel 2 (Schraubenfeder), welche aus elastischem, drahtförmigem Werkstoff gebildet ist. Der Expansionskörper 1 ist zweckmäßig als Faltenschlauch ausgebildet. Der Expansionskörper 1 ist mit Hilfe eines Zugorganes 4 in seine Stellung mit größerem Volumen (Fig. 3) ziehbar. Dieses Zugorgan 4 ist dabei in einem faltbaren Schlauch 7 aufgenommen, der zwischen dem Stirnwendteil des als Faltenschlauch ausgeführten Expansionskörpers 1, an welchem das Zugorgan 4 befestigt ist, und dem Wandteil des Hohlkörpers 9 engeordnet ist. Durch diesen Wandteil des Hohlkörpers 9 ist auch das Zugorgan 4 aus diesem herausgeführt. Der faltbare und/oder elastisch ausgebildete Schlauch 7 ist mit dem Expanεionskörper 1 und euch mit dem Wandteil des Hohlkörpers 9 gasdicht verbunden.The expansion body 1 spans a coil 2 (coil spring) located inside the latter, which is formed from elastic, wire-shaped material. The expansion body 1 is expediently designed as a corrugated hose. The expansion body 1 can be pulled into its larger volume position (FIG. 3) with the aid of a pulling element 4. This traction element 4 is received in a foldable hose 7, which is arranged between the end part of the expansion body 1, which is designed as a folding hose, to which the traction element 4 is fastened, and the wall part of the hollow body 9. Through this wall part of the hollow body 9, the tension member 4 is also guided out of it. The foldable and / or elastic hose 7 is connected gas-tight to the expansion body 1 and you to the wall part of the hollow body 9.
An einem Ende des Expansionskorpers 1 befindet sich ein Ein- und Auslaßventil 3. Dieses Ventil 3 hat die Aufgabe, bei ausgezogenem Expansionskörper 1 die sich im Inneren des Expansionskörpers befindende Luft nicht entweichen zu lassen. Das Ventil 3 kann aber umgestellt werden, um beim Zusammenschieben des Expansionskörpers 1 Luft ent weichen zu lassen. Am hinteren Teil des Expansionskörpers 1 ist dann das Zugorgan 4 angebracht, an dessen Ende sich eine Schlaufe 5 befindet, um bei ausgezogener Vorrichtung (Fig. 3) des Zugorganes 4 an einem Haken 6 arretieren zu können. Um das Abdichten zu gewährleisten, ist das Zugorgan 4 mit dem dehn- und/oder faltbaren Schlauch 7 umgeben.At one end of the expansion body 1 there is an inlet and outlet valve 3. This valve 3 has the task of not allowing the air located inside the expansion body to escape when the expansion body 1 is pulled out. The valve 3 can, however, be changed over to ent 1 air when pushing together the expansion body to give way. The traction element 4 is then attached to the rear part of the expansion body 1, at the end of which there is a loop 5, in order to be able to lock it on a hook 6 when the device (FIG. 3) is pulled out. In order to ensure the sealing, the traction element 4 is surrounded by the expandable and / or foldable hose 7.
Um das Einfallen der Außenhaut 8 des Hohlkörpers 9 (Schwimmkörper) zu vermeiden, ist im Inneren des Hohlkörpers 9 ebenfalls eine zusammenhängende Wendelfeder 10 eingelegt. Die Zahl der Wendeln richtet sich nach der Größe des Hohlkörpers 9. In der Außenhaut 8 des Hohlkörpers 9 ist wenigstens ein Sicherheitsventil 11 vorgesehen, durch welches beim Zusammenfalten des Hohlkörpers 9 (Fig. 1) Luft entweichen kann.In order to prevent the outer skin 8 of the hollow body 9 (floating body) from collapsing, a coherent coil spring 10 is likewise inserted in the interior of the hollow body 9. The number of coils depends on the size of the hollow body 9. At least one safety valve 11 is provided in the outer skin 8 of the hollow body 9, through which air can escape when the hollow body 9 is folded (FIG. 1).
Der Expansionskcrper 1 ist so verankert, daß er im Inneren der Wendel 10 genügend Platz findet, so daß ein reibungsloses Ineinandergreifen gewährleistet wird.The expansion body 1 is anchored in such a way that it has enough space inside the coil 10 so that a smooth interlocking is ensured.
Das bzw. die Sicherheitsventile 11 haben auch die Aufgäbe, beim Auseinanderspreizen des Hohlkörpers 9 unter der Wirkung der Wendel 10 luft in diese einzulassen und den Austritt von Luft zu verhindern. Dieses Auseinenderspreizen erfolgt nach dem Lösen der in Fig. 1 gezeigten Sicherheitsbänder 12.The safety valve (s) 11 also have the task of allowing air into the hollow body 9 when the hollow body 9 is spread apart and to prevent the escape of air. This spreading apart takes place after the security tapes 12 shown in FIG. 1 have been released.
Nach dem Auseinanderziehen des Hohlkörpers 9 (Lage nach Fig. 2) wird der Expensionεkörper 1 mitτels des Zugorganes 4 auseinandergezogen, wobei Luft durch das Ventil 3 in den als Faltenschlauch ausgebildeten Expansionskörper 1 eindringt (Fig. 3). Durch die Volumenszunahme des Expansionskorpers 1 wird der Druck im Inneren des Hohlkörpers 9 vergrößert. Durch diese Vorgengsweise ergibt sich der gleiche Zustand, wie dies nach dem Aufpumpen eines Hohlkörpers der Fall ist. Zum Zusammenfalten des Hohlkörpers 9 aus der in Fig. 3 gezeigten Stellung in die in Fig. 1 gezeigte Ausgangslage werden die Ventile 3 und 11 geöffnet oder so umgeschaltet, daß Luft aus dem Expansionskörper 1 und dem Hohlkörper 9 entweichen kann. Hach dem Zusammendrücken entgegen der Kraft der Wendel 10 und gegengleich der Wendel 2 werden die Sicherheitsbänder 12 fixiert und der Hohlkörper 9 ist in seiner kompakten Bereitschaftsstellung. After the hollow body 9 has been pulled apart (position according to FIG. 2), the expansion body 1 is pulled apart using the pulling element 4, air penetrating through the valve 3 into the expansion body 1 designed as a corrugated hose (FIG. 3). Due to the increase in volume of the expansion body 1, the pressure inside the hollow body 9 is increased. This procedure results in the same state as this after inflating a hollow body. To fold the hollow body 9 from the position shown in FIG. 3 into the starting position shown in FIG. 1, the valves 3 and 11 are opened or switched so that air can escape from the expansion body 1 and the hollow body 9. After the compression against the force of the helix 10 and opposite to the helix 2, the safety bands 12 are fixed and the hollow body 9 is in its compact ready position.

Claims

P a t e n t a n s p r ü c h e : Patent claims:
1. Aufblähbarer Hohlkörper mit einer flexiblen Außenhaut, die aus einer zusammengefalteten Lage unter der Wirkung einer Spreizvorrichtung in eine ausgedehnte Stellung ausweitbar ist, und mit einem den Eintritt von Luft in das Innere des Hohlkörpers gestattenden Ventil, dadurch gekennzeichnet, daß im Inneren des Hohlkörpers (9) ein Expansionskörper (1) vorgesehen ist, dessen Volumen zum Erhöhen des Druckes im Hohlkörper (9) vergrößerbar ist und der gegen Zusammendrücken gesichert ist.1. Inflatable hollow body with a flexible outer skin, which can be expanded from a folded position under the action of a spreading device into an extended position, and with a valve allowing the entry of air into the interior of the hollow body, characterized in that in the interior of the hollow body ( 9) an expansion body (1) is provided, the volume of which can be increased in order to increase the pressure in the hollow body (9) and which is secured against compression.
2. Hohlkörper nach Anspruch 1, dadurch gekennzeichnet, daß der Expensionskörper (1) als Faltenschlauch ausgebildet ist.2. Hollow body according to claim 1, characterized in that the expansion body (1) is designed as a corrugated tube.
3. Hohlkörper nach Anspruch 2, dadurch gekennzeichnet, daß der Expansionskörper (1) mit Hilfe eines Zugorganes (4) in seine Stellung mit größerem Volumen (Fig. 3) ziehbar ist.3. Hollow body according to claim 2, characterized in that the expansion body (1) with the aid of a tension member (4) in its position with a larger volume (Fig. 3) can be pulled.
4. Hohlkörper nach Anspruch 3, dadurch gekennzeichnet, daß das Zugorgan (4) in einem faltberen Schlauch (7) aufgenommen ist, der zwischen dem Stirnwandteil des als Faltenschlauch ausgeführten Expansionskorpers (1), an dem das Zugorgan (4) befestigt ist, und dem Wandteil des Hohlkörpers (9) angeordnet ist, durch den das Zugorgan (4) aus diesem herausgeführt ist, wobei der faltbare und/oder elastisch ausgebildete Schlauch (7) mit dem Expansionskörper (1) als auch mit dem Wandteil des Hohlkörpers (9) gasdicht verbunden ist.4. Hollow body according to claim 3, characterized in that the pulling element (4) is received in a foldable tube (7) between the end wall part of the expansion body designed as a folded tube (1), to which the pulling element (4) is fastened, and the wall part of the hollow body (9), through which the pulling element (4) is led out of it, the foldable and / or elastic hose (7) with the expansion body (1) and with the wall part of the hollow body (9) is connected gastight.
5. Hohlkörper nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Expansionskörper (1) durch eine in dessen Inneren angeordnete Wendel (2) aus elastischem, drahtförmigem Werkstoff, die gegen die Wandung des Expansionskörpers (1) anliegt, gesichert ist. 5. Hollow body according to one of claims 1 to 4, characterized characterized in that the expansion body (1) is secured by a helix (2) made of elastic, wire-shaped material arranged in the interior thereof, which rests against the wall of the expansion body (1).
PCT/EP1984/000364 1983-11-21 1984-11-20 Inflatable hollow body WO1985002156A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA4073/83 1983-11-21
AT0407383A AT383561B (en) 1983-11-21 1983-11-21 INFLATABLE FLOAT, IN PARTICULAR TUBE BOAT, RESCUE DEVICE OD. DGL.

Publications (1)

Publication Number Publication Date
WO1985002156A1 true WO1985002156A1 (en) 1985-05-23

Family

ID=3559286

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1984/000364 WO1985002156A1 (en) 1983-11-21 1984-11-20 Inflatable hollow body

Country Status (4)

Country Link
EP (1) EP0162093A1 (en)
AT (1) AT383561B (en)
AU (1) AU3679484A (en)
WO (1) WO1985002156A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291843A (en) * 1994-07-08 1996-02-07 Airscrew Howden Ltd Buoyancy aid for vehicles
GR1003410B (en) * 1999-02-03 2000-07-25 �������� ��������-�������� Tight folding salvager cabin
EP3378755A1 (en) * 2017-03-23 2018-09-26 Goodrich Corporation Floatation device without pressurized container

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1416523A (en) * 1921-06-23 1922-05-16 Strobel Jacob Life preserver
DE881163C (en) * 1951-12-20 1953-06-29 Otto Adomat Device for giving buoyancy to people who cannot swim or other bodies

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1416523A (en) * 1921-06-23 1922-05-16 Strobel Jacob Life preserver
DE881163C (en) * 1951-12-20 1953-06-29 Otto Adomat Device for giving buoyancy to people who cannot swim or other bodies

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291843A (en) * 1994-07-08 1996-02-07 Airscrew Howden Ltd Buoyancy aid for vehicles
GR1003410B (en) * 1999-02-03 2000-07-25 �������� ��������-�������� Tight folding salvager cabin
EP3378755A1 (en) * 2017-03-23 2018-09-26 Goodrich Corporation Floatation device without pressurized container
US10266243B2 (en) 2017-03-23 2019-04-23 Goodrich Corporation Floatation device without pressurized container

Also Published As

Publication number Publication date
EP0162093A1 (en) 1985-11-27
ATA407383A (en) 1986-12-15
AU3679484A (en) 1985-06-03
AT383561B (en) 1987-07-27

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