Cable cutting mechanism for an aircraft

The aircraft-integrated cutter mechanism addresses the inadequacy of existing cable cutter systems by automatically opening and cutting cables upon contact, ensuring immediate protection and safety during aircraft operations.

WO2025116851A1PCT designated stage Publication Date: 2025-06-05TUSAS TURK HAVACILIK VE UZAY SANAYII ANONIM SIRKETI
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Patent Information

Application Number
PCT/TR2024/051122
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-10-01
Publication Date
2025-06-05

AI Technical Summary

Technical Problem

Existing cable cutter mechanisms for aircraft, particularly helicopters, are inadequate in ensuring immediate and effective protection against cable entanglements, which can lead to serious accidents during rescue or transport operations.

Method used

A cutter mechanism integrated into the aircraft body, featuring a movable cutter housed within an apparatus that automatically opens when a cable contacts the aircraft, allowing for instant cutting and minimizing damage.

Benefits of technology

The mechanism effectively prevents cable entanglements by instantly cutting the cable upon contact, thereby ensuring the safety of the aircraft and its occupants by reducing the risk of accidents.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a body (2) which is an aircraft, and at least one cutter (3) which is located on the body (2) and prevents the body (2) from being damaged by cutting a cable (C) which comes into contact with the body (2) during the movement of the body (2).
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Description

[0001] A CUTTER MECHANISM

[0002] The present invention relates to the cable cutter mechanism in aircraft.

[0003] Cable cutter mechanisms used in helicopters are special devices generally designed to ensure the safety of the helicopter during rescue operations. These mechanisms are designed to prevent the cable or rope from getting tangled in the helicopter's rotors or other critical components during rescue. If a helicopter gets tangled in an object such as a rope or cable during rescue or transport operations, it can lead to serious accidents. Cable cutter mechanisms help to ensure the safety of the helicopter and its occupants by minimising such situations. Cable cutter mechanisms are usually integrated into the body of the helicopter or can be designed to be portable as special equipment. These mechanisms usually comprise some kind of cutter or blade and help to eliminate potential hazards during the rescue operation by applying pressure on the cable.

[0004] In the United States patent document numbered US5288036A in the state of the art, wire cutting systems for aircraft and a rotating wire deflection and separation system to protect low-flying aircraft with external, belly-mounted weapon systems from wire / cable impacts are mentioned.

[0005] By means of a cutter mechanism developed with the present invention, the protection of the aircraft is provided by the cutter that opens when the cable touches the aircraft.

[0006] Another aim of this invention is to be able to cut the cable instantly by means of a practical and effective cutter.

[0007] The cutter mechanism defined in the first claim and the claims dependent on this claim, which is realised to achieve the aim of the invention, comprises a body, which is the main structure of the aircraft, and at least one cutter that prevents the body from being damaged by cutting the cable that hits the body during the movement of the body. The main aim of this cutter mechanism is to minimise possible damages during the movement of the aircraft and to ensure the protection of the body. Said cutter mechanism comprises at least one apparatus that is located on the body and in which the cutter is housed. It comprises a cutter that is positioned movably inside the apparatus and that is released when the cable comes into contact with the apparatus, thus cutting the cable. It comprises a closed position (I) in which the cutter is located within the apparatus when the cable is not touching the body, and an open position (II) in which the cutter is opened from the apparatus so that they are opposite each other when the cable hits the apparatus. The apparatus, which is brought from the closed position (I) to the open position (II), enables the cable to move towards the cutter. A scissors-shaped cutter is located in the part where the apparatus is connected to the body. When the cable hits the apparatus with a force, the apparatus opens and the cutter inside it is revealed.

[0008] In one embodiment of the invention, the cutter mechanism comprises at least one piece of equipment connected to the apparatus at least at one end, allowing the aircraft to perform the activities desired by the user. The cutter is connected to the apparatus from one end and to the body from the other end. When the cable hits the apparatus, a part of the cutter moves away from the body with the apparatus and can cut the cable. The cutter is opened by an angle value determined by the user when it is brought from the closed position (I) to the open position (II).

[0009] In one embodiment of the invention, the cutter mechanism comprises a connector that allows the apparatus to be removably attached to the body from one end and to the equipment from the other end, and allows the cutter to be opened by making a rotation movement from the part where it is connected to the apparatus when it is brought from the closed position (I) to the open position (II). One part of the cutter is connected to the apparatus and the other part to the equipment via a connector. When the cable hits the equipment and / or apparatus, the equipment is opened by the angle value previously determined by the user and the cutter inside is revealed.

[0010] In one embodiment of the invention, the cutter mechanism comprises a cutter at least one of the parts of which located opposite each other is connected to the equipment and allows the equipment to hold onto the apparatus. One of the cutter is inside the apparatus and the other is inside the equipment. When the cutter is in the open position (II), the part of the equipment connected to the apparatus rotates while the part not connected to the apparatus moves away from the body. In one embodiment of the invention, the cutter mechanism comprises an apparatus that remains integral with the body when the cutter is in the closed position (I) and that allows the cutter that switches to the open position (II) when the cable hits it to be housed. The apparatus stays inside the body when the body does not hit the cable.

[0011] In one embodiment of the invention, the cutter mechanism comprises the open position (II) in which the cutter is opened from the equipment by the impact of the cable on the apparatus and access is provided, and the closed position (I) in which the cutter is integral with the apparatus. When the cable hits the equipment, it slides over the equipment and the cutter is revealed when the equipment is opened.

[0012] In one embodiment of the invention, the cutter mechanism comprises at least one sensor located on the body that can detect the cable hitting the body, and at least one control unit that allows the cutter to move between the closed position (I) and open position (II) according to the data received from the sensor. As soon as the cable hits the body, the equipment moves and enables the cutter to open.

[0013] In one embodiment of the invention, the cutter mechanism comprises at least one spring located on the cutter to at least partially damp the impact effect of the cable hitting it. The spring provides to reduce the cable contact effect on the cutter.

[0014] In one embodiment of the invention, the cutter mechanism comprises a cutter that is activated by the cable touching the body and / or the apparatus and the equipment opening by the angle value predetermined by the user. The amount of opening of the equipment is limited by the limiter.

[0015] In one embodiment of the invention, the cutter mechanism comprises FLIR (Forward Looking InfraRed) equipment located on the body.

[0016] The cutter mechanism realised to achieve the aim of this invention is shown in the attached figures, and of these figures;

[0017] Figure 1 shows the schematic view of the Cutter Mechanism (1 ),

[0018] Figure 2 shows the perspective view of the closed position (I),

[0019] Figure 3 shows the perspective view of the open position (II). The parts in the figures are numbered one by one and the equivalents of these numbers are given below.

[0020] 1 . Cutter mechanism

[0021] 2. Body

[0022] 3. Cutter

[0023] 4. Apparatus

[0024] 5. Equipment

[0025] 6. Connector

[0026] 7. Sensor

[0027] 8. Control Unit

[0028] 9. Spring

[0029] 10. Limiter

[0030] (C) Cable

[0031] (I) Closed Position

[0032] (II) Open Position

[0033] The cutter mechanism (1 ) comprises a body (2) which is an aircraft, and at least one cutter (3) which is located on the body (2) and prevents the body (2) from being damaged by cutting a cable (C) which comes into contact with the body (2) during the movement of the body (2).

[0034] The cutter mechanism (1 ) which is the subject of the invention comprises at least one apparatus (4) that is located on the body (2) and comprises the cutter (3), the cutter (3) that is located on the apparatus (4) in a movable manner and in a way that they will be opposite each other when the cable (C) applies force to the apparatus (4), a closed position (I) in which the cutters (3) are located within the apparatus (4), an open position (II) in which the distance between the cutters (3) increases compared to the closed position (I) when force is applied to the apparatus (4) by the cable (C), and the apparatus (4) that allows the cable (C) to be cut by the cutter (3) by directing the cable (C) from the closed position (I) to the open position (II) by means of the force generated by the cable (C) coming into contact with it.

[0035] It comprises at least one cutter (3) that is located on the body of an aircraft and prevents the cable (C) from damaging the body (2) by cutting the cable (C) that contacts the body (2) while the body (2) is moving. By means of the cutter (3), precautions are taken before the cable (C) gets caught in the body (2) (Figure - 1 , Figure - 2, Figure - 3).

[0036] It comprises an apparatus (4) that comprises cutter (3) and allows the cable (C) to be cut by means of the cutters (3) that open opposite each other when the cable (C) touches the body (2). The cutters (3) are in the closed position (I) while they are inside the apparatus (4). It comprises an open position (II) in which the distance between the cutters (3) increases compared to the closed position (I) when the cable (C) touches the body (2). When the cable (C) touches the body (2), force is applied to the apparatus

[0037] (4) and at least a part of the apparatus (4) is moved away from the body (2) and the cutter (3) located inside the apparatus (4) is exposed.

[0038] In one embodiment of the invention, the cutter mechanism (1 ) comprises at least one equipment (5) that is located on the apparatus (4) and enables the activities required for the aircraft to be performed, and the cutter (3) that is located between the equipment

[0039] (5) and the apparatus (4) and is connected to the equipment (5) at one end and to the apparatus (4) at the other end. A part of the cutter (3) is located inside the apparatus (4) and the other part is located inside the equipment (5). When the cutter (3) is in the open position (II), the equipment (5) is separated from the part where it is connected to the body (2) and the cutter (3) is revealed.

[0040] In one embodiment of the invention, the cutter mechanism (1 ) comprises at least one connector (6) that is located between the equipment (5) and the apparatus (4) and enables the connection of the equipment (5) to the apparatus (4) from a part of it, allowing the equipment (5) to make a rotation movement from the part where it is connected to the apparatus (4) while the cutter (3) comes from the closed position (I) to the open position (II), thus enabling the cutter (3) to cut the cable (C). When the cable (C) hits the body (2), the cutter (3) that comes from the closed position (I) to the open position (II) is revealed by the rotation of the equipment (5) around the place where it is connected to the apparatus (4). In one embodiment of the invention, the cutter mechanism (1 ) comprises the cutter (3) that allows the equipment (5) to be connected to the apparatus (4) from at least one end, and allows the cable (C) to be cut by coming from the closed position (I) to the open position (II) when the cable (C) comes into contact with it. One of the cutters (3) is inside the equipment (5) while the other is inside the apparatus (4).

[0041] In one embodiment of the invention, the cutter mechanism (1 ) comprises an apparatus (4) that carries the equipment (5) by means of the connector (6), allows the cutter (3) to move when the cable (C) comes into contact with it, and is positioned in a way that it almost completely overlaps the aerodynamic surface of the body (2) when the cutter (3) is in the closed position (I). The connector (6) enables the equipment (5) to move.

[0042] In one embodiment of the invention, the cutter mechanism (1 ) comprises the open position (II) in which access to the cutter (3) is provided by the rotation of the cable (C) as much as the moment effect due to the impact effect from the part where the equipment (5) is connected to the apparatus (4) by means of the connector (6), the closed position (I) of the cutter (3) in which the equipment (5) is integral with the apparatus (4) on the body (2), and the cutter (3) that comes from the closed position (I) to the open position (II) when the cable (C) hits the equipment (5). In this way, the instant cutting of the cable (C) is ensured. When the cable (C) is not in contact, the cutter mechanism (3) is kept inside the apparatus (4) and the equipment (5).

[0043] In one embodiment of the invention, the cutter mechanism (1 ) comprises at least one sensor (7) that is located on the body (2) and detects the cable (C) hitting the body (2), and at least one control unit (8) that controls the data it receives from the sensor (7) located on the body (2) and thus enables the cutter (3) to move between the closed position (I) and the open position (II). In this way, the cable (C) is cut quickly and damage to the body (2) is prevented.

[0044] In one embodiment of the invention, the cutter mechanism (1 ) comprises at least one spring (9) that is located on the cutter (3) and at least partially absorbs the impact effect of the cable (C) when it comes into contact with it. In this way, the cable (C) is prevented from damaging the cutter (3) by impact.

[0045] In one embodiment of the invention, the cutter mechanism (1 ) comprises at least one limiter (10) that is located on the apparatus (4) and allows the equipment (5) to open by an angle value predetermined by the user when the cutter (3) is in the open position (II). The equipment (5) is opened by an angle value predetermined by the user, enabling the cutter (3) to be activated.

[0046] In one embodiment of the invention, the cutter mechanism (1) comprises equipment (5) that is FLIR (Forward Looking InfraRed) and used to detect and track objects emitting radiation.

Claims

CLAIMS1. A cutter mechanism (1 ) comprising a body (2) which is an aircraft, and at least one cutter (3) which is located on the body (2) and prevents the body (2) from being damaged by cutting a cable (C) which comes into contact with the body (2) during the movement of the body (2), characterised by at least one apparatus (4) that is located on the body (2) and comprises the cutter (3), the cutter (3) that is located on the apparatus (4) in a movable manner and in a way that they will be opposite each other when the cable (C) applies force to the apparatus (4), a closed position (I) in which the cutters (3) are located within the apparatus (4), an open position (II) in which the distance between the cutters (3) increases compared to the closed position (I) when force is applied to the apparatus (4) by the cable (C), and the apparatus (4) that allows the cable (C) to be cut by the cutter (3) by directing the cable (C) from the closed position (I) to the open position (II) by means of the force generated by the cable (C) coming into contact with it.

2. A cutter mechanism (1 ) according to Claim 1 , characterised by at least one equipment (5) that is located on the apparatus (4) and enables the activities required for the aircraft to be performed, and the cutter (3) that is located between the equipment (5) and the apparatus (4) and is connected to the equipment (5) at one end and to the apparatus (4) at the other end.

3. A cutter mechanism (1 ) according to Claim 1 or Claim 2, characterised by at least one connector (6) that is located between the equipment (5) and the apparatus (4) and enables the connection of the equipment (5) to the apparatus (4) from a part of it, allowing the equipment (5) to make a rotation movement from the part where it is connected to the apparatus (4) while the cutter (3) comes from the closed position (I) to the open position (II), thus enabling the cutter (3) to cut the cable (C).

4. A cutter mechanism (1 ) according to Claim 2 or Claim 3, characterised by the cutter (3) that allows the equipment (5) to be connected to the apparatus (4) from at least one end, and allows the cable (C) to be cut by coming from theclosed position (I) to the open position (II) when the cable (C) comes into contact with it.

5. A cutter mechanism (1 ) according to Claim 3 or Claim 4, characterised by an apparatus (4) that carries the equipment (5) by means of the connector (6), allows the cutter (3) to move when the cable (C) comes into contact with it, and is positioned in a way that it almost completely overlaps the aerodynamic surface of the body (2) when the cutter (3) is in the closed position (I).

6. A cutter mechanism (1 ) according to Claims 3 to 5, characterised by the open position (II) in which access to the cutter (3) is provided by the rotation of the cable (C) as much as the moment effect due to the impact effect from the part where the equipment (5) is connected to the apparatus (4) by means of the connector (6), the closed position (I) of the cutter (3) in which the equipment (5) is integral with the apparatus (4) on the body (2), and the cutter (3) that comes from the closed position (I) to the open position (II) when the cable (C) hits the equipment (5).

7. A cutter mechanism (1 ) according to any of the previous claims, characterised by at least one sensor (7) that is located on the body (2) and detects the cable (C) hitting the body (2), and at least one control unit (8) that controls the data it receives from the sensor (7) located on the body (2) and thus enables the cutter (3) to move between the closed position (I) and the open position (II).

8. A cutter mechanism (1 ) according to any of the previous claims, characterised by at least one spring (9) that is located on the cutter (3) and at least partially absorbs the impact effect of the cable (C) when the cable (C) comes into contact with it.

9. A cutter mechanism (1 ) according to Claims 2 to 8, characterised by at least one limiter (10) that is located on the apparatus (4) and allows the equipment (5) to open by an angle value predetermined by the user when the cutter (3) is in the open position (II).

10. A cutter mechanism (1 ) according to Claims 2 to 9, characterised by the equipment (5) that is FLIR (Forward Looking InfraRed) and used to detect and track objects emitting radiation.

Citation Information

Patent Citations

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