A rescue operation device

Abstract

The present disclosure relates to a rescue operation device to be deployed during flooding and other rescue operations, comprising a first inflatable tube layer having at least three linear first side parts, each first side parts being connected with a first corner part so that the first inflatable tube layer having at least three first corner parts, each first corner part having the same first angle between two adjacent first side parts, a second inflatable tube layer being substantially identical to the first inflatable tube layer, and having at least three linear second side parts, each second side parts being connected with a second corner part so that the second inflatable tube layer having at least three second corner parts, each second corner part having the same second angle between two adjacent second side parts, wherein the first inflatable tube layer is arranged above the second inflatable tube layer and is rotated in relation to the second inflatable tube layer so that each first corner parts are projecting radially outwards from each of the second side parts with a first projection distance and each second corner parts are projecting radially outwards from each of the first side parts with a second projection distance, the first projection distance being substantially equal to the second projection distance, and the first inflatable tube layer and the second inflatable tube layer being connected via a floor part, the floor part has a first floor face and a second floor face.

Description

[0001] A RESCUE OPERATION DEVICE

[0002] Description

[0003] The present disclosure relates to a rescue operation device to be deployed during flooding and other rescue operations, comprising a first inflatable tube layer having at least three linear first side parts, each first side parts being connected with a first corner part so that the first inflatable tube layer having at least three first corner parts, each first corner part having the same first angle between two adjacent first side parts, a second inflatable tube layer being substantially identical to the first inflatable tube layer, and having at least three linear second side parts, each second side parts being connected with a second corner part so that the second inflatable tube layer having at least three second corner parts, each second corner part having the same second angle between two adjacent second side parts.

[0004] During times of flooding and other emergencies where immediate rescue may be hindered, providing effective rescue operations can be challenging. Factors such as rivers or streams overflowing their banks due to heavy rain, broken dams or dikes, or rapid melting of ice or snow can add to the complexities of the situation. In these scenarios, deploying various rescue devices may be necessary in order to save individuals who are caught in the flood. However, these devices can often be cumbersome and may not fully meet the requirements for successful rescue operations.

[0005] It is an object of the present disclosure to wholly or partly overcome the above disadvantages and drawbacks of the prior art. More specifically, it is an object to provide an improved rescue operation device which is easy to handle before and during deployment, and which at the same time has a light weight and have a high capacity.

[0006] The above objects, together with numerous other objects, advantages and features, which will become evident from the below description, are accomplished by a solution in accordance with the present disclosure according to claim 1.

[0007] Claim 1 concern a rescue operation device to be deployed during flooding and other rescue operations, comprising a first inflatable tube layer having at least three linear first side parts, each first side parts being connected with a first corner part so that the first inflatable tube layer having at least three first corner parts, each first corner part having the same first angle between two adjacent first side parts, a second inflatable tube layer being substantially identical to the first inflatable tube layer, and having at least three linear second side parts, each second side parts being connected with a second corner part so that the second inflatable tube layer having at least three second corner parts, each second corner part having the same second angle between two adjacent second side parts, wherein the first inflatable tube layer is arranged above the second inflatable tube layer and is rotated in relation to the second inflatable tube layer so that each first corner parts are projecting radially outwards from each of the second side parts with a first projection distance and each second corner parts are projecting radially outwards from each of the first side parts with a second projection distance, the first projection distance being substantially equal to the second projection distance, and the first inflatable tube layer and the second inflatable tube layer being connected via a floor part, the floor part has a first floor face and a second floor face.

[0008] The rescue operation device has been designed to maintain dimensional stability when inflated. This is achieved through a unique configuration that ensures the inflatable tube layer facing the water supports the other inflatable tube layer by rotating it between the corner parts. As a result, the rescue operation device may be made lighter in weight than alternative solutions, making it easier to handle during storage and deployment. The configuration also allows for a high capacity rescue operation device that is easy for individuals to embark, as the corner parts facing the water can be used as steps.

[0009] An increased structural integrity and stability due to the configuration of the inflatable layers is obtained. The present disclosure's arrangement of layers with multiple linear side parts and corner parts allows for a more even distribution of forces and stress across the structure, thereby reducing the likelihood of localized deformation. Additionally, the rotational arrangement of the layers enhances stability by providing more contact points with the water surface, which helps mitigate tilting and swaying caused by wave action. This configuration makes the rescue operation device more robust and reliable under demanding maritime conditions. Different examples are defined in the related dependent claims.

[0010] Optionally in some examples, including in at least one preferred example, the first inflatable tube layer is rotated in relation to the second inflatable tube layer so that each first corner part is projecting radially outwards from a central second section of each of the second side parts with the first projection distance and each second corner part is projecting radially outwards from a central first section of each of the first side parts with the second projection distance. A technical benefit may include improved symmetrical distribution of ferees and enhanced stability due to the specific alignment of the corner parts with the central sections of the side parts, reducing the risk of deformation and increasing the platform's robustness.

[0011] Optionally in some examples, including in at least one preferred example, the first inflatable tube layer having five linear first side parts and five first corner parts, and the second inflatable tube layer having five linear second side parts and five second corner parts. A technical benefit may include increased rigidity and stability due to the pentagonal configuration, which allows for a more even distribution of external forces and stress, thereby enhancing the overall structural integrity of the device. The pentagonal configuration of the first tube layer and the second tube layer when seen in a top view enhance rigidity and stability to the rescue operation device. Firstly, a pentagonal structure inherently distributes forces more evenly across its sides and vertices compared a smaller number of sides. This geometric property means that when external forces act upon the rescue operation device, the stress is more evenly distributed, reducing the likelihood of localized deformation and increasing the overall structural integrity of the rescue operation device.

[0012] Additionally, the pentagonal shape increases the number of sides and vertices, providing more contact points with the water surface. This increase in contact points results in better stabilization as the rescue operation device can better resist tilting and swaying caused by wave action. The more complex shape of the pentagon also allows for a more efficient distribution of evacuees' weight, further enhancing stability and reducing the risk of capsizing or excessive movement.

[0013] Moreover, the relatively greater number of angles in a pentagon (five) compared to a smaller number of angles creates more natural re-entrant angles for boarding stations, potentially increasing the number of accessible positions for evacuees and improving the ease and safety of boarding under various conditions.

[0014] Optionally in some examples, including in at least one preferred example, the floor part is arranged at the corner parts. A technical benefit may include enhanced structural support and stability, as the floor part being anchored at the corner parts can more effectively distribute the load and provide a stable surface as well as steps for evacuees.

[0015] Optionally in some examples, including in at least one preferred example, each inflatable layer is configured as one inflatable chamber. A technical benefit may include simplified construction, as having a single inflatable chamber per layer minimizes the number of seams and potential points of failure as well as weight of the rescue operation device.

[0016] Optionally in some examples, including in at least one preferred example, each inflatable layer and the floor part are made of materials having a light weight and being flexible. A technical benefit may include easier deployment and handling, as lightweight and flexible materials reduce the overall weight of the device and enhance its portability and ease of use during rescue operations.

[0017] Optionally in some examples, including in at least one preferred example, the material is a polymeric material, such as natural rubber, polyurethane, thermoplastic polyurethane, butyl rubber, polyvinylchloride, polychloroprene, polyethylene, or a combination thereof. A technical benefit may include enhanced durability and resistance to harsh environmental conditions, as polymeric materials provide excellent strength, flexibility, and resistance to punctures and abrasions.

[0018] Optionally in some examples, including in at least one preferred example, the rescue operation device has a capacity in view of persons, such as 50 persons, preferably 100 persons or more. A technical benefit may include the ability to accommodate a larger number of evacuees, thereby increasing the effectiveness and utility of the rescue operation device in emergency situations involving multiple individuals.

[0019] Optionally in some examples, including in at least one preferred example, a weight of the rescue operation device is approximately 50 kg for a capacity of 100 persons. A technical benefit may include improved portability and ease of deployment, as the relatively low weight of the device allows for quick and efficient handling during rescue operations while still having a high capacity.

[0020] Optionally in some examples, including in at least one preferred example, one or more indications is / are arranged on each side of the floor part for nudging the persons in the rescue operation device for moving towards a centre of the rescue operation device. A technical benefit may include enhanced organization and safety, as the indications help guide evacuees towards the center of the device, preventing overcrowding at the edges and ensuring better weight distribution.

[0021] Optionally in some examples, including in at least one preferred example, the first inflatable tube layer and the second inflatable tube layer are inflated by an inflation gas contained in one or more gas containers. A technical benefit may include reliable and rapid inflation, as the use of gas containers ensures that the device can be quickly and effectively deployed in an emergency situation.

[0022] Optionally in some examples, including in at least one preferred example, a volume of the first inflatable tube layer and the second inflatable tube layer, respectively, and the inflation gas content in the one or more gas containers are aligned so that overpressure valves in each inflatable tube layer may be avoided. A technical benefit may include simplified maintenance and increased reliability, as the alignment of gas volume and container content eliminates the need for overpressure valves, reducing potential points of failure.

[0023] Optionally in some examples, including in at least one preferred example, further comprising at least one stabilising member, configured to be filled with water after deployment. A technical benefit may include enhanced stability and reduced movement on the water surface, as the stabilising member provides additional ballast, helping to keep the device steady in rough conditions.

[0024] Optionally in some examples, including in at least one preferred example, the stabilising member comprises a bag, a number of bag lines connected to the bag around a periphery of the bag, in the opposite end the bag lines are connected with a device line being connected with the rescue operation device. A technical benefit may include improved anchoring and stability, as the bag and bag lines configuration ensures that the stabilising member remains securely attached and effective in providing ballast.

[0025] Optionally in some examples, including in at least one preferred example, the stabilising members are reversible so they function independently of which inflatable tube layer is facing the water. A technical benefit may include increased versatility and reliability, as the reversible stabilising members ensure that the device remains effective regardless of its orientation on the water.

[0026] Optionally in some examples, including in at least one preferred example, the device line has a length of at least 1.25 meter, preferably at least 1.5 meter, whereby it is obtained that feet of persons in the water trying embark the rescue operation device will not collide with the bag and the bag lines. A technical benefit may include enhanced safety and ease of boarding, as the specified length of the device line prevents interference with evacuees' feet, reducing the risk of entanglement and facilitating smooth boarding.

[0027] Optionally in some examples, including in at least one preferred example, further comprising a drainage element, the drainage element is configured to drain liquid from an upwards facing face of the floor part. A technical benefit may include improved comfort and safety, as the drainage element helps to remove excess water from the floor part, preventing slippage and maintaining a dry surface for evacuees.

[0028] Optionally in some examples, including in at least one preferred example, a handle is arranged opposite each corner part. A technical benefit may include enhanced ease of use and safety, as the handles provide evacuees with secure points to grip, helping them to steady themselves and facilitating boarding and movement within the device.

[0029] Optionally in some examples, including in at least one preferred example, one or more handles is / are arranged on the outside adjacent to the corner part. A technical benefit may include increased accessibility and ease of boarding, as the external handles provide additional points for evacuees to grasp when boarding from the water, enhancing the overall usability of the device. The present disclosure also relates to a rescue operation system comprising a rescue operation device as described above and a deployment unit. A technical benefit may include a comprehensive solution for rescue operations, as the deployment unit ensures that the device can be quickly and efficiently deployed, providing immediate assistance in emergency situations.

[0030] Additional features and advantages are disclosed in the following description, claims, and drawings, and in part will be readily apparent therefrom to those skilled in the art or recognized by practicing the disclosure as described herein.

[0031] The disclosure and its many advantages will be described in more detail below with reference to the accompanying schematic drawings, which for the purpose of illustration show some non-limiting examples and in which

[0032] Fig. 1 shows an example of a rescue operation device according to the disclosure in a top view,

[0033] Fig. 2 shows the rescue operation device of Fig. 1 in a side view,

[0034] Figs. 3 and 4 show the rescue operation device of Fig. 1 in a perspective view and a bottom view, respectively,

[0035] Fig. 5 shows schematically an inflatable tube layer seen in a top view, the inflatable tube layer has a pentagon shape,

[0036] Figs. 6a-6e show different geometrical shapes of the rescue operation device according to the disclosure,

[0037] Fig. 7 shows an example of a rescue operation system according to the disclosure, and

[0038] Fig. 8 shows an example of a rescue operation device.

[0039] All the figures are highly schematic and not necessarily to scale, and they show only those parts which are necessary in order to elucidate the disclosure, other parts being omitted or merely suggested. Fig. 1 shows a rescue operation device 1 to be deployed during flooding and other rescue operations in a top view. The rescue operation device 1 comprises a first inflatable tube layer 2 having at least three linear first side parts 4. In the example shown in Fig. 1, the first inflatable tube layer 2 has five linear first side parts 4. Each first side parts 4 being connected with a first corner part 5 so that the first inflatable tube layer 2 having at least three first corner parts 5. In the example shown in Fig.1, the first inflatable tube layer 2 has five first corner parts 5 and each first corner part 5 having the same first angle a between two adjacent first side parts 4. The first inflatable tube layer 2 has the same number of linear first side parts 4 and first corner parts 5.

[0040] The rescue operation device 1 also comprises a second inflatable tube layer 3 being substantially identical to the first inflatable tube layer 2, and having at least three linear second side parts 6. In the example shown in Fig.l, the second inflatable tube layer 3 has five linear second side parts 6. Each second side parts 6 being connected with a second corner part 7 so that the second inflatable tube layer 3 having at least three second corner parts 7. In the example shown in Fig. 1, the second inflatable tube layer 3 has five second corner parts 7 and each second corner part 7 having the same second angle o' between two adjacent second side parts 6. The second inflatable tube layer 3 has the same number of linear second side parts 6 and second corner parts 7.

[0041] The first inflatable tube layer 2 and the second inflatable tube layer 3 have a pentagonal shape seen in the top view. The pentagonal shapes of the first inflatable tube layer 3 and the second inflatable tube layer 3 enhances the rigidity and stability of the rescue operation device 1. A pentagonal structure inherently distributes forces more evenly across its sides and vertices compared to configurations with fewer side parts. This geometric property ensures that when external forces act upon the rescue operation device, the stress is more evenly distributed, reducing the likelihood of localized deformation and thereby increasing the overall structural integrity of the device.

[0042] Furthermore, the pentagonal shape provides an increased number of side parts and vertices, offering more contact points with the water surface. This increased contact area results in better stabilization, allowing the rescue operation device 1 to better resist tilting and swaying caused by wave action. The complex shape of the pentagon also facilitates a more efficient distribution of evacuees' weight, further enhancing stability and reducing the risk of capsizing or excessive movement. Additionally, the relatively greater number of angles in a pentagon, compared to shapes with fewer angles, creates more natural re-entrant angles for boarding stations. This increase in boarding stations potentially improves the number of accessible positions for evacuees, enhancing the ease and safety of boarding under various conditions.

[0043] According to the disclosure, the first inflatable tube layer 2 is arranged above the second inflatable tube layer 3 and is rotated in relation to the second inflatable tube layer 3 so that each first corner parts 5 are projecting radially outwards from each of the second side parts 6 with a first projection distance Di and each second corner parts 7 are projecting radially outwards from each of the first side parts 4 with a second projection distance D2, the first projection distance Di being substantially equal to the second projection distance D2, and the first inflatable tube layer 2 and the second inflatable tube layer 3 being connected via a floor part 10, the floor part 10 has a first floor face 20 and a second floor face 21. The first projection distance Di and the second protection distance D2 are shown in Fig. 2.

[0044] According to an example, the first corner parts 5 are rotated so that they project radially outwards from the second side parts at a position between two adjacent second corner parts, and the second corner parts 7 projecting radially outwards from the first side parts at a position between two adjacent first corner parts.

[0045] In the shown example of Fig. 1, the first inflatable tube layer 2 is arranged above the second inflatable tube layer 3 and is rotated in relation to the second inflatable tube layer 3 so that each first corner parts 5 are projecting radially outwards from a central second section 8 of each of the second side parts 6 with a first projection distance Di and each second corner parts 7 are projecting radially outwards from a central first section 9 of each of the first side parts 4 with a second projection distance D2.

[0046] Hereby is obtained that the rescue operation device 1 is configured to be dimensionally stable when inflated. The configuration of the rescue operation device 1 ensures that the tube layer facing the water supports the other tube layer by having it rotated so that it is supported between the corners, hereby it is obtained that the construction may be made more light weighted than other solutions and thereby handling is facilitated both during storage as deflated and during deployment. In addition, due to the configuration and the dimensionally stability it is possible to provide a high capacity rescue operation device 1. Moreover, the rescue operation device 1 is easy to enter or embark for persons to be rescued since they may use the corner parts facing the water as steps 11 for entering the rescue operation device 1.

[0047] In the present example, the pentagonal shape of the first inflatable tube layer 2 and the second inflatable tube layer 3 provide smaller projection distances compared to a similar size of the rescue operation device having a smaller number of corner parts than five. The smaller projection distances provide enhanced stability and rigidity of the projected areas which may be used as steps for boarding.

[0048] The first inflatable tube layer 2 is substantially identical to the second inflatable tube layer 3 whereby the linear first side parts 4 have the same first side length, and the linear second side parts 6 have the same second side length as the first side length. Moreover, the first central section 9 is arranged at half the first side length, and the second central section 8 is arranged at half the second side length.

[0049] The floor part 10 is arranged between the first inflatable tube layer 2 and the second inflatable tube layer 3 whereby the rescue operation device 1 is configured to be reversible. Hereby is obtained, that the rescue operation device may be used directly independently of which of the first inflatable tube layer 2 and the second inflatable tube layer 3 is facing the water. If the second inflatable tube layer 3 is facing the water, each second corner parts 7 can be used as steps 11 for embarking the rescue operation device 1. If the first inflatable tube layer 2 is facing the water, each first corner parts 5 can be used as steps 11 for entering the rescue operation device 1. By the configuration of the rescue operation device 1 persons may embark the rescue operation device 1 at each corner part arranged around the circumference of the rescue operation device 1 and thereby a more rapid embarking is possible.

[0050] Furthermore, the floor part 10 is arranged at all the corner parts 5, 7 in both the the first inflatable tube layer 2 and the second inflatable tube layer 3 so that the floor part 10 may be used as the steps 11.

[0051] Additionally, each inflatable tube layer 2, 3 is configured as one inflatable chamber.

[0052] The first inflatable tube layer 2 and the second inflatable tube layer 3 are inflated by an inflation gas contained in one or more gas containers 40. Preferably, a first gas container 40 is arranged in connection with the first inflatable tube layer 2 and a second gas container 40 is arranged in connection with the second inflatable tube layer 3 so that each inflatable tube layer 2, 3 may be inflated by each gas container 40. The volume of the first inflatable tube layer 2 and the second inflatable tube layer 3, respectively, and the inflation gas content in the one or more gas containers 40 are aligned so that overpressure valves in each inflatable tube layer may be avoided. Hereby is obtained that the overall weight of the rescue operation device 1 may be lowered.

[0053] Moreover, each inflatable tube layer 2, 3 and the floor part 10 are made of materials having a light weight and being flexible. Since, the rescue operation device 1 is configured to be compact packed when deflated and stored, it is of importance that the rescue operation device 1 is made of a flexible material and non-rigid material, and that it is light weight. The material shall be able to be folded or rolled without being damaged.

[0054] The material may be a polymeric material, such as natural rubber (NR), polyurethane (PU), thermoplastic polyurethane (TPU), butyl rubber (BR), polyvinylchloride (PVC), polychloroprene (CR), polyethylene (PE), or a combination thereof. Furthermore, the material may have a colour being easily to detect from a distance so that the rescue operation device 1 is more easily detected in a flooded area for instance.

[0055] The rescue operation device 1 may have a capacity in view of persons, such as 50 person, preferably 100 persons, or more.

[0056] In an example, a weight of the rescue operation device 1 is approximately 50 kg for a capacity of 100 persons. Hereby is obtained that the rescue operation device 1 may be handled during storage and deployment even though it has a high capacity.

[0057] Additionally, one or more indications 12 may be arranged on each side of the floor part 10 for nudging the persons in the rescue operation device 1 for moving towards a centre 13 of the rescue operation device 1. The one or more indications 12 may be made of a reflective material so that the indications 12 are detectable from above. In the shown example in Fig. 1, the indications 12 are a plurality of arrows.

[0058] In Fig. 2, the rescue operation device 1 is shown in a side view. The first inflatable tube layer 2 is arranged above the second inflatable tube layer 3 and the floor part 10 is arranged between them.

[0059] The rescue operation device 1 further comprises at least one stabilising member 14, configured to be filled with water after deployment so that the rescue operation device 1 is maintained in the water and that a potential speed of the rescue operation device may be lowered. In the shown example, the rescue operation device 1 has five stabilising members 14. Each stabilising member 14 comprises a bag 15, a number of bag lines 16 connected to the bag 16 around a periphery 17 of the bag. In the opposite end the bag lines 16 are connected with a device line 18 being connected with the rescue operation device 1. A number of stabilising members 14 are connected with the rescue operation device 1 around the circumference of the rescue operation device 1.

[0060] Moreover, the stabilising members 14 are reversible so they function independently of which inflatable tube layer 2, 3 is facing is the water.

[0061] In addition, the device line 18 has a length of at least 1.25 meter, preferably at least 1.5 meter, whereby it is obtained that feet of persons in the water trying enter the device will not collide with the bag 15 and the bag lines 16. The bag 15 is made of a flexible material. Also, the device line 18 is connected to the rescue operation device 1 between the first inflatable tube layer 2 and the second inflatable tube layer 3.

[0062] Furthermore, a handle 30 is arranged opposite each corner part 5, 7. Also, one or more handles 30 may be arranged on the outside adjacent to the corner part 5, 7. Additional handles 30 may be arranged along the side parts 4, 6 so that the handles 30 may be used during embarking the rescue operation device 1 and while being in the rescue operation device 1. In addition, arranging a plurality of handles 30 along the side parts enhances the security for individuals boarding the rescue operation device 1. The presence of these handles 30 encourages evacuees to use them, thereby providing a firm grip and stable support as they board the device. This setup minimizes the potential for accidents and ensures a smoother transition from the water to the platform. Moreover, the use of handles 30 instead of the usual ropes along the side parts significantly reduces the risk of entanglement. Ropes, while functional, can pose a hazard as individuals may accidentally get caught or tangled in them, especially in the chaotic conditions often present during rescue operations. By eliminating these ropes, the design not only enhances safety but also simplifies the boarding process, making it more efficient and less stressful for evacuees. Additional advantages of this configuration include improved durability and ease of maintenance. Handles 30 are typically more robust and less prone to wear and tear compared to ropes, which can fray or degrade over time. This durability ensures that the rescue operation device remains reliable over multiple uses. Overall, the strategic placement of handles along the side parts provides significant safety benefits by reducing entanglement risks and offering secure support for evacuees, while also presenting considerations regarding flexibility and manufacturing complexity.

[0063] Moreover, in the shown example, each first corner parts 5 are projecting radially outwards from the central second section 8 of each of the second side parts 6 with the first projection distance Di and each second corner parts 7 are projecting radially outwards from a central first section 9 of each of the first side parts 4 with a second projection distance D2, the first projection distance Di being substantially equal to the second projection distance D2 as shown in Fig. 2.

[0064] In Fig. 3, the rescue operation device 1 of Fig. 1 is shown in a perspective view. The rescue operation device 1 further comprises a drainage element 19, the drainage element 19 is configured to drain liquid or fluid from an upwards facing face of the floor part 10. The drainage element 19 is arranged at the centre 13 of the floor part 10 since this is will be the lowest point of the floor part when persons are positioned on the floor part 10. Any liquid present on the floor part 10 will then be led to the centre 13 of the floor part 10 and be drained therefrom. The drainage element 19 may comprise a first non-return valve 22 and a second non-return valve 23, the first non-return valve 22 is arranged for draining liquid or fluid from the first floor face and the second non-return valve 23 is arranged for draining liquid or fluid from the second floor face.

[0065] The first non-return valve 22 and / or the second non-return valve 23 may comprise at least a first sheet, which is made of a flexible material, said first sheet being configured to be a sleeve or be part of a sleeve, said sleeve having a first end and a second end, and at least openings at both ends, said sleeve being substantially closed between the ends, said sleeve being directly or indirectly connected at the first end to either the first floor face or the second floor face around an opening in the floor part so that a passage for the fluid is created inside the sleeve. By making the non-return valves 22, 23 in flexible and non-rigid materials it is obtained that the overall weight of the rescue operation device is lowered, and furthermore, that packing of the rescue operation device is facilitated.

[0066] Fig. 4 show the rescue operation device 1 of Fig. 1 in a bottom view. The rescue operation device 1 is configured to be reversible which is deducible from Fig. 4.

[0067] In Fig. 5, the first inflatable tube layer 2 is shown schematically. The first inflatable tube layer 2 is shown as a regular pentagon shape having five side parts 4 having equal length L. Each side part 4 is connected at a corner part 5. The angle a between two adjacent side parts 4 is the same at each corner part 5.

[0068] In Figs. 6a to 6e, different geometrically shapes of the rescue operation device 1 are shown.

[0069] In Fig. 6a, the first inflatable tube layer 2 has three linear first side parts 4 and three first corner parts 5, and the second inflatable tube layer 3 has three linear second side parts 6 and three second corner parts 7. The first inflatable tube layer 2 and the second inflatable floatable tube layer 3 are equilateral triangles.

[0070] In Fig. 6b, the first inflatable tube layer 2 has four linear first side parts 4 and four first corner parts 5, and the second inflatable tube layer 3 has four linear second side parts 6 and four second corner parts 7. The first inflatable tube layer 2 and the second inflatable floatable tube layer 3 are square formed.

[0071] In Fig. 6c, the first inflatable tube layer 2 has five linear first side parts 4 and five first corner parts 5, and the second inflatable tube layer 3 has five linear second side parts 6 and five second corner parts 7. The geometrical shape shown in Fig. 6c corresponds to the example of Figs. 1-5. The first inflatable tube layer 2 and the second inflatable floatable tube layer 3 are equilateral pentagons.

[0072] In Fig. 6d, the first inflatable tube layer 2 has six linear first side parts 4 and six first corner parts 5, and the second inflatable tube layer 3 has six linear second side parts 6 and six second corner parts 7. The first inflatable tube layer 2 and the second inflatable floatable tube layer 3 are equilateral hexagons.

[0073] In Fig. 6e, the first inflatable tube layer 2 has seven linear first side parts 4 and seven first corner parts 5, and the second inflatable tube layer 3 has seven linear second side parts 6 and seven second corner parts 7. The first inflatable tube layer

[0074] 2 and the second inflatable floatable tube layer 3 are equilateral heptagons.

[0075] The rescue operation device 1 may have other geometrical shapes while built up of equally sized linear side parts.

[0076] Furthermore, the first inflatable tube layer 2 and the second inflatable tube layer

[0077] 3 may have either an odd number of side parts or an even number of side parts.

[0078] The first inflatable tube layer 2 may be rotated with 180 degrees in relation to the second inflatable tube layer 3 when the first inflatable tube layer 2 and the second inflatable tube layer 3 have odd number of side parts. The first inflatable tube layer 2 may be rotated with 45 degrees in relation to the second inflatable tube layer 3 when the first inflatable tube layer 2 and the second inflatable tube layer 3 have even number of side parts.

[0079] Moreover, the rescue operation device 1 may be compact packed when deflated so as to be manageable by one person when being stored and when being deployed. The deflated rescue device 1 may be positioned in a breakable bag and / or an openable container during storage, so that it is protected during storage.

[0080] In Fig. 7, a rescue operation system 100 according to the disclosure is shown. The rescue operation system 100 comprises a rescue operation device 1 as described previously and a deployment unit 50. In the example of Fig. 7, the deployment unit 50 is an aerial vehicle such as a helicopter 60.

[0081] In other examples, the deployment unit 50 may be a marine vehicle, a land vehicle or an aerial vehicle, or any combination thereof. The marine vehicle may be a marine vessel such as a ship, a boat, an unmanned surface vehicle or an autonomous boat. The aerial vehicle may be an aircraft, a helicopter 60, an airplane or an unmanned aerial vehicle such as a drone. Also, the deployment unit may be an amphibious vehicle. Fig. 8 show a rescue operation device 1 to be deployed during flooding and other rescue operations in a top view. The rescue operation device 1 comprises a first inflatable tube layer 2 having five linear first side parts 4, each first side parts being connected with a first corner part 5 so that the first inflatable tube layer 2 having five first corner parts 5, each first corner part having the same first angle a between two adjacent first side parts 4, a second inflatable tube layer 3 being substantially identical to the first inflatable tube layer 2, and having five linear second side parts 6, each second side parts 6 being connected with a second corner part 7 so that the second inflatable tube layer 3 having five second corner parts 7, each second corner part having the same second angle o' between two adjacent second side parts, wherein the first inflatable tube layer 2 is arranged above the second inflatable tube layer 3 and is rotated in relation to the second inflatable tube layer 3 so that each first corner parts 5 are projecting radially outwards from each of the second side parts 6 with a first projection distance Di and each second corner parts 7 are projecting radially outwards from each of the first side parts 4 with a second projection distance D2, the first projection distance Di being substantially equal to the second projection distance D2, and the first inflatable tube layer 2 and the second inflatable tube layer 3 being connected via a floor part 10, the floor part has a first floor face and a second floor face.

[0082] In addition, the first inflatable tube layer 2 and the first inflatable tube layer 3 have a pentagonal shape when seen in a top view.

[0083] Certain aspects and variants of the disclosure are set forth in the following clauses numbered consecutive below.

[0084] Clause 1: A rescue operation device (1) to be deployed during flooding and other rescue operations, comprising a first inflatable tube layer (2) having at least three linear first side parts (4), each first side parts being connected with a first corner part (5) so that the first inflatable tube layer (2) having at least three first corner parts (5), each first corner part having the same first angle (a) between two adjacent first side parts (4), a second inflatable tube layer (3) being substantially identical to the first inflatable tube layer (2), and having at least three linear second side parts (6), each second side parts (6) being connected with a second corner part (7) so that the second inflatable tube layer (3) having at least three second corner parts (7), each second corner part having the same second angle (o') between two adjacent second side parts, wherein the first inflatable tube layer (2) is arranged above the second inflatable tube layer (3) and is rotated in relation to the second inflatable tube layer (3) so that each first corner parts (5) are projecting radially outwards from each of the second side parts (6) with a first projection distance (Di) and each second corner parts (7) are projecting radially outwards from each of the first side parts (4) with a second projection distance (D2), the first projection distance (Di) being substantially equal to the second projection distance (D2), and the first inflatable tube layer (2) and the second inflatable tube layer (3) being connected via a floor part (10), the floor part has a first floor face and a second floor face.

[0085] Clause 2: A rescue operation device (1) according to clause 1, wherein the first inflatable tube layer is rotated in relation to the second inflatable tube layer so that each first corner parts are projecting radially outwards from a central second section (8) of each of the second side parts with the first projection distance and each second corner parts are projecting radially outwards from a central first section (9) of each of the first side parts with the second projection distance.

[0086] Clause 3: A rescue operation device (1) according to any of the preceding clauses, wherein the linear first side parts (4) have the same first side length, and the linear second side parts (6) have the same second side length.

[0087] Clause 4: A rescue operation device (1) according to clause 2, wherein the first central section (9) is arranged at half the first side length, and the second central section (8) is arranged at half the second side length.

[0088] Clause 5: A rescue operation device (1) according to any of the preceding clauses, wherein the first inflatable tube layer (2) having four linear first side parts (4) and four first corner parts (5), and the second inflatable tube layer (3) having four linear second side parts (6) and four second corner parts (7).

[0089] Clause 6: A rescue operation device (1) according to any of the clauses 1-4, wherein the first inflatable tube layer (2) having five linear first side parts (4) and five first corner parts (5), and the second inflatable tube layer (3) having five linear second side parts (6) and five second corner parts (7). Clause 7: A rescue operation device (1) according to any of the clauses 1-4, wherein the first inflatable tube layer (2) having six linear first side parts (4) and six first corner parts (5), and the second inflatable tube layer (3) having six linear second side parts (6) and six second corner parts (7).

[0090] Clause 8: A rescue operation device (1) according to any of the clauses 1-4, wherein the first inflatable tube layer (2) having seven linear first side parts (4) and seven first corner parts (5), and the second inflatable tube layer (3) having seven linear second side parts (6) and seven second corner parts (7).

[0091] Clause 9: A rescue operation device (1) according to any of the clauses 1-4, 6 or 8, wherein the first inflatable tube layer (2) and the second inflatable tube layer (3) have odd number of side parts.

[0092] Clause 10: A rescue operation device (1) according to clause 9, wherein the first inflatable tube layer (2) is rotated with 180 degrees in relation to the second inflatable tube layer (3) when the first inflatable tube layer (2) and the second inflatable tube layer (3) have odd number of side parts.

[0093] Clause 11 : A rescue operation device (1) according to any of the clauses 5 or 7, wherein the first inflatable tube layer (2) and the second inflatable tube layer (3) have even number of side parts.

[0094] Clause 12: A rescue operation device (1) according to clause 11, wherein the first inflatable tube layer (2) is rotated with 45 degrees in relation to the second inflatable tube layer (3) when the first inflatable tube layer (2) and the second inflatable tube layer (3) have even number of side parts.

[0095] Clause 13: A rescue operation device (1) according to any of the preceding clauses, wherein the rescue operation device (1) is configured to be reversible.

[0096] Clause 14: A rescue operation device (1) according to any of the preceding clauses, wherein either the first inflatable tube layer (2) or the second inflatable tube layer (3) is facing the water when deployed in water. Clause 15: A rescue operation device (1) according to clause 14, wherein the second inflatable tube layer (2) is facing the water whereby each second corner parts (7) can be used as steps (11) for embarking the rescue operation device.

[0097] Clause 16: A rescue operation device (1) according to clause 14, wherein the first inflatable tube layer (2) is facing the water whereby each first corner parts (5) can be used as steps (11) for embarking the rescue operation device.

[0098] Clause 17: A rescue operation device (1) according to any of the preceding clauses, wherein the floor part (10) is arranged at the corner parts (5, 7).

[0099] Clause 18: A rescue operation device (1) according to any of the preceding clauses, wherein each inflatable tube layer (2, 3) is configured as one inflatable chamber.

[0100] Clause 19: A rescue operation device (1) according to any of the preceding clauses, wherein each inflatable tube layer (2, 3) and the floor part (10) are made of materials having a light weight and being flexible.

[0101] Clause 20: A rescue operation device (1) according to clause 18, wherein the material is a polymeric material, such as natural rubber (NR), polyurethane (PU), thermoplastic polyurethane (TPU), butyl rubber (BR), polyvinylchloride (PVC), polychloroprene (CR), polyethylene (PE), or a combination thereof.

[0102] Clause 21: A rescue operation device (1) according to any of the clauses 19 and / or 20, wherein the materials having a colour being easily to detect from a distance.

[0103] Clause 22: A rescue operation device (1) according to any of the preceding clauses, wherein the rescue operation device has a capacity in view of persons, such as 50 person, preferably 100 persons or more.

[0104] Clause 23: A rescue operation device (1) according to any of the preceding clauses, wherein a weight of the rescue operation device is approximately 50 kg for a capacity of 100 persons.

[0105] Clause 24: A rescue operation device (1) according to any of the preceding clauses, wherein one or more indications (12) is / are arranged on each side of the floor part (10) for nudging the persons in the rescue operation device for moving towards a centre (13) of the rescue operation device.

[0106] Clause 25: A rescue operation device (1) according to clause 24, wherein the one or more indications (12) being made of a reflective material so that the indications are detectable from above.

[0107] Clause 26: A rescue operation device (1) according to any of the clauses 24 and / or 25, wherein the indications (12) are a plurality of arrows.

[0108] Clause 27: A rescue operation device (1) according to any of the preceding clauses, wherein the first inflatable tube layer (2) and the second inflatable tube layer (3) are inflated by an inflation gas contained in one or more gas containers (40).

[0109] Clause 28: A rescue operation device (1) according to clause 27, wherein a volume of the first inflatable tube layer (2) and the second inflatable tube layer (3), respectively, and the inflation gas content in the one or more gas containers (40) are aligned so that overpressure valves in each inflatable tube layer (2, 3) may be avoided.

[0110] Clause 29: A rescue operation device (1) according to any of the preceding clauses, further comprising at least one stabilising member (14), configured to be filled with water after deployment.

[0111] Clause 30: A rescue operation device (1) according to clause 29, wherein the stabilising member (14) comprises a bag (15), a number of bag lines (16) connected to the bag around a periphery (17) of the bag, in the opposite end the bag lines are connected with a device line (18) being connected with the rescue operation device.

[0112] Clause 31: A rescue operation device (1) according to any of the clauses 29 and / or 30, wherein a number of stabilising members (14) are connected with the rescue operation device around a circumference of the rescue operation device.

[0113] Clause 32: A rescue operation device (1) according to any of the clauses 29 to 31, wherein the stabilising members (14) are reversible so they function independently of which inflatable tube layer (2, 3) is facing the water. Clause 33: A rescue operation device (1) according to clause 30, wherein the device line (18) has a length of at least 1.25 meter, preferably at least 1.5 meter, whereby it is obtained that feet of persons in the water trying embark the rescue operation device will not collide with the bag (15) and the bag lines.

[0114] Clause 34: A rescue operation device (1) according to any of the clauses 30 to 33, wherein the bag (15) is made of a flexible material.

[0115] Clause 35: A rescue operation device (1) according to any of the clauses 30 to 34, wherein the device line (18) is connected to the rescue operation device between the first inflatable tube layer (2) and the second inflatable tube layer (3).

[0116] 36. A rescue operation device (1) according to any of the preceding clauses, further comprising a drainage element (19), the drainage element is configured to drain liquid from an upwards facing face of the floor part (10).

[0117] Clause 37: A rescue operation device (1) according to clause 36, wherein the drainage element (19) is arranged at the centre (13) of the floor part (10).

[0118] Clause 38: A rescue operation device (1) according to any of the clauses 36 and / or

[0119] 37, wherein the drainage element (19) comprises a first non-return valve (22) and a second non-return valve (23), the first non-return valve is arranged for draining fluid from the first floor face and the second non-return valve is arranged for draining fluid from the second floor face.

[0120] Clause 39: A rescue operation device (1) according to clauses 38, wherein the first non-return valve (22) and / or the second non-return valve (23) comprises at least a first sheet, which is made of a flexible material, said first sheet being configured to be a sleeve or be part of a sleeve, said sleeve having a first end and a second end, and at least openings at both ends, said sleeve being substantially closed between the ends, said sleeve being directly or indirectly connected at the first end to either the first floor face or the second floor face around an opening in the floor part so that a passage for the fluid is created inside the sleeve.

[0121] Clause 40: A rescue operation device (1) according to any of the preceding clauses, wherein a handle (30) is arranged opposite each corner part (5, 7). Clause 41: A rescue operation device (1) according to clause 40, wherein one or more handles (30) is / are arranged on the outside adjacent to the corner part (5, 7).

[0122] Clause 42: A rescue operation device (1) according to any of the preceding clauses, wherein the rescue operation device is compact packed when deflated so as to be manageable by one person when being deployed and / or during storage.

[0123] Clause 43: A rescue operation device (1) according to clause 42, wherein the deflated rescue operation device is positioned in a breakable bag and / or an openable container.

[0124] Clause 44: A rescue operation device (1) to be deployed during flooding and other rescue operations, comprising a first inflatable tube layer (2) having five linear first side parts (4), each first side parts being connected with a first corner part (5) so that the first inflatable tube layer (2) having five first corner parts (5), each first corner part having the same first angle (a) between two adjacent first side parts (4), a second inflatable tube layer (3) being substantially identical to the first inflatable tube layer (2), and having five linear second side parts (6), each second side parts (6) being connected with a second corner part (7) so that the second inflatable tube layer (3) having five second corner parts (7), each second corner part having the same second angle (o') between two adjacent second side parts, wherein the first inflatable tube layer (2) is arranged above the second inflatable tube layer (3) and is rotated in relation to the second inflatable tube layer (3) so that each first corner parts (5) are projecting radially outwards from each of the second side parts (6) with a first projection distance (Di) and each second corner parts (7) are projecting radially outwards from each of the first side parts (4) with a second projection distance (D2), the first projection distance (Di) being substantially equal to the second projection distance (D2), and the first inflatable tube layer (2) and the second inflatable tube layer (3) being connected via a floor part (10), the floor part has a first floor face and a second floor face. Clause 45: A rescue operation device (l)according to clause 44, wherein the first inflatable tube layer (2) and the first inflatable tube layer (3) have a pentagonal shape when seen in a top view.

[0125] Clause 46: A rescue operation system (100) comprising a rescue operation device (1) according to any of the preceding clauses and a deployment unit (50).

[0126] Clause 47: A rescue operation system (100) according to clause 46, wherein the deployment unit (50) is a marine vehicle, a land vehicle or an aerial vehicle, or any combination thereof.

[0127] Clause 48: A rescue operation system (100) according to clause 47, wherein the marine vehicle is a marine vessel such as a ship, a boat, an unmanned surface vehicle or an autonomous boat.

[0128] Clause 49: A rescue operation system (100) according to clause 47, wherein the aerial vehicle is an aircraft, a helicopter (60), an airplane or an unmanned aerial vehicle such as a drone.

[0129] Clause 50: A rescue operation system (100) according to clause 47, wherein the deployment unit is an amphibious vehicle.

[0130] The terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. It will be further understood that the terms "comprises," "comprising," "includes," and / or "including" when used herein specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0131] It will be understood that, although the terms first, second, etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element without departing from the scope of the present disclosure.

[0132] Relative terms such as "below" or "above" or "upper" or "lower" or "horizontal" or "vertical" may be used herein to describe a relationship of one element to another element as illustrated in the Figures. It will be understood that these terms and those discussed above are intended to encompass different orientations of the system and / or device in addition to the orientation depicted in the Figures. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.

[0133] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms used herein should be interpreted as having a meaning consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0134] It is to be understood that the present disclosure is not limited to the aspects described above and illustrated in the drawings; rather, the skilled person will recognize that many changes and modifications may be made within the scope of the present disclosure and appended claims. In the drawings and specification, there have been disclosed aspects for purposes of illustration only and not for purposes of limitation, the scope of the inventive concepts being set forth in the following claims.

Claims

Claims1. A rescue operation device (1) to be deployed during flooding and other rescue operations, comprising a first inflatable tube layer (2) having at least three linear first side parts (4), each first side parts being connected with a first corner part (5) so that the first inflatable tube layer (2) having at least three first corner parts, each first corner part having the same first angle between two adjacent first side parts (4), a second inflatable tube layer (3) being substantially identical to the first inflatable tube layer (2), and having at least three linear second side parts (6), each second side parts being connected with a second corner part (7) so that the second inflatable tube layer having at least three second corner parts (7), each second corner part having the same second angle between two adjacent second side parts, wherein the first inflatable tube layer (2) is arranged above the second inflatable tube layer (3) and is rotated in relation to the second inflatable tube layer (3) so that each first corner parts (5) are projecting radially outwards from each of the second side parts (6) with a first projection distance (Di) and each second corner parts (7) are projecting radially outwards from each of the first side parts (4) with a second projection distance (D2), the first projection distance being substantially equal to the second projection distance, and the first inflatable tube layer (2) and the second inflatable tube layer (3) being connected via a floor part (10), the floor part has a first floor face and a second floor face.

2. A rescue operation device (1) according to claim 1, wherein the first inflatable tube layer is rotated in relation to the second inflatable tube layer so that each first corner parts are projecting radially outwards from a central second section (8) of each of the second side parts with the first projection distance and each second corner parts are projecting radially outwards from a central first section (9) of each of the first side parts with the second projection distance.

3. A rescue operation device (1) according to any of the preceding claims, wherein the first inflatable tube layer (2) having five linear first side parts (4) and five first corner parts (5), and the second inflatable tube layer (3) having five linear second side parts (6) and five second corner parts (7).

4. A rescue operation device (1) according to any of the preceding claims, wherein the floor part (10) is arranged at the corner parts (5, 7).

5. A rescue operation device (1) according to any of the preceding claims, wherein each inflatable layer (2, 3) is configured as one inflatable chamber.

6. A rescue operation device (1) according to any of the preceding claims, wherein each inflatable layer (2, 3) and the floor part (10) are made of materials having a light weight and being flexible.

7. A rescue operation device (1) according to claim 6, wherein the material is a polymeric material, such as natural rubber (NR), polyurethane (PU), thermoplastic polyurethane (TPU), butyl rubber (BR), polyvinylchloride (PVC), polychloroprene (CR), polyethylene (PE), or a combination thereof.

8. A rescue operation device (1) according to any of the preceding claims, wherein the rescue operation device (1) has a capacity in view of persons, such as 50 person, preferably 100 persons or more.

9. A rescue operation device (1) according to any of the preceding claims, wherein a weight of the rescue operation device (1) is approximately 50 kg for a capacity of 100 persons.

10. A rescue operation device (1) according to any of the preceding claims, wherein one or more indications (12) is / are arranged on each side of the floor part (10) for nudging the persons in the rescue operation device for moving towards a centre (13) of the rescue operation device.

11. A rescue operation device (2) according to any of the preceding claims, wherein the first inflatable tube layer (2) and the second inflatable tube layer (3) are inflated by an inflation gas contained in one or more gas containers (40).

12. A rescue operation device (1) according to claim 11, wherein a volume of the first inflatable tube layer (2) and the second inflatable tube layer (3), respectively, and the inflation gas content in the one or more gas containers (40) are aligned so that overpressure valves in each inflatable tube layer (2, 3) may be avoided.

13. A rescue operation device (1) according to any of the preceding claims, further comprising at least one stabilising member (14), configured to be filled with water after deployment.

14. A rescue operation device (1) according to claim 13, wherein the stabilising member (14) comprises a bag (15), a number of bag lines (16) connected to the bag around a periphery (17) of the bag, in the opposite end the bag lines are connected with a device line (18) being connected with the rescue operation device.

15. A rescue operation device (1) according to any of the claims 13 to 14, wherein the stabilising members (14) are reversible so they function independently of which inflatable tube layer (2, 3) is facing the water.

16. A rescue operation device (1) according to claim 14, wherein the device line (18) has a length of at least 1.25 meter, preferably at least 1.5 meter, whereby it is obtained that feet of persons in the water trying embark the rescue operation device will not collide with the bag (15) and the bag lines.

17. A rescue operation device (1) according to any of the preceding claims, further comprising a drainage element (19), the drainage element is configured to drain liquid from an upwards facing face of the floor part (10).

18. A rescue operation device (1) according to any of the preceding claims, wherein a handle (30) is arranged opposite each corner part (5, 7).

19. A rescue operation device (1) according to claim 18, wherein one or more handles (30) is / are arranged on the outside adjacent to the corner part (5, 7).

20. A rescue operation system (100) comprising a rescue operation device (1) according to any of the preceding claims and a deployment unit (50).

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