A pilot step mechanism

The compact pilot step mechanism with a rotatable step and spring-loaded mechanism addresses the inefficiencies of existing systems by allowing pilots to access the aircraft cockpit without external support, enhancing boarding efficiency and reducing volume requirements.

WO2025116845A1PCT designated stage Publication Date: 2025-06-05TUSAS TURK HAVACILIK VE UZAY SANAYII ANONIM SIRKETI
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Patent Information

Application Number
PCT/TR2024/050725
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-06-27
Publication Date
2025-06-05

AI Technical Summary

Technical Problem

Existing pilot step mechanisms require manual preparation by the pilot before boarding or collection by a technician after boarding, and they often necessitate the use of ground support elements.

Method used

A compact pilot step mechanism with a rotatable step and spring-loaded mechanism that allows the pilot to access the aircraft cockpit without external support, featuring a slot with a hinge, a step that rotates out of the slot, and a spring for energy storage.

Benefits of technology

Enables the pilot to board the aircraft efficiently with reduced volume requirements in the aircraft side panel areas and eliminates the need for ground support elements, ensuring safe and convenient access to the cockpit.

✦ Generated by Eureka AI based on patent content.

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    Figure TR2024050725_05062025_PF_FP_ABST
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Abstract

The present invention relates to a body (2) located on the aircraft, a cockpit (K) located on the body (2), a slot (3) that creates an opening in the form of a recess on the body (2) and allows the pilots to access the cockpit (K) by placing their foot, at least one hinge (4) located on the slot (3), at least one step (5) located rotatably on the slot (3) via the hinge (4), extending outward from the slot (3) around the hinge (4), thus allowing the pilots to access the cockpit (K) by placing their foot at least partially in the slot (3), a first position (I) where the step (5) is closed and is aerodynamically form compatible with the body (2), and a second position (II) where the step (5) is open and is moved out of the slot (3) by the pilot and allows the pilot's foot to access the slot (3).
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Description

[0001] A PILOT STEP MECHANISM

[0002] This invention relates to pilot step mechanisms used to enable the pilot to access the aircraft.

[0003] In order for the pilot to board the aircraft, there is a need for steps on the aircraft structure. These steps are located on the aircraft structure in the form of stairs or single steps. There is a need for the steps to be manually prepared by the pilot before boarding or collected by the technician after boarding.

[0004] In the utility model document of Chinese origin numbered CN209700911 U in the state of the art, a normally closed type pedal comprising a pedal frame structure, a footrest mechanism and a rotational elastic component, and the helicopter in which this pedal is used are mentioned.

[0005] By means of a pilot step mechanism developed with the present invention, the pilot can reach the aircraft cockpit area with a compact design using less volume in the aircraft side panel areas.

[0006] Another aim of this invention is to enable the pilot to board the aircraft without the need for a ground support element.

[0007] The pilot step 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 located on the aircraft. There is a cockpit on the body where the pilot sits, provides cruise control and directs the aircraft. There is a slot on the body that forms a cavity into the body so that the pilot can access the cockpit. There is at least one hinge on the slot to provide rotational movement relative to the slot. There is a step on the slot that is connected to the hinge and can be rotated via the hinge. The step rotates around the hinge from the slot to the outside of the body when triggered by the pilot. Thus, the pilot reaches the cockpit by placing his hand or foot on the step. There is a first position (I) where the step is aerodynamically form compatible with the body. In the first position (I), the step is closed and located in the slot. There is a second position (II) to which the step is brought by the pilot moving it out of the slot. In the second position (II), the step is located outside the slot in an open position.

[0008] The pilot step mechanism of the invention comprises at least one spring that allows the step to be moved from the first position (I) to the second position (II) or from the second position (II) to the first position (I). The spring is located on the step. When the pilot places his foot on the step and moves the step from the first position (I) to the second position (II), the spring stores energy. When the force applied by the pilot is released, the step returns from the second position (II) to the first position (I) by means of the energy stored by the spring. The spring is preferably a torsion spring.

[0009] In one embodiment of the invention, the pilot step mechanism comprises at least one cover to which the pilots first contact their foot and allows them to place their foot on the step by pushing their foot into the slot. The cover is located inside the slot. The cover is connected to the slot via a hinge. The cover, which is given the first movement by the pilot, is moved into the slot around the hinge. In the first position (I), the cover and the step close the slot in contact with each other and create an aerodynamically smooth and continuous surface.

[0010] In one embodiment of the invention, the pilot step mechanism comprises a cover that the pilots trigger with their foot and rotates around the hinge into the slot. When the cover is advanced into the slot, the pilots grasp the step with the sole of their foot. They move the step out of the slot by rotating it around the hinge. In this way, the pilot accesses the cockpit by stepping on the step.

[0011] In one embodiment of the invention, the pilot step mechanism comprises a step that is first moved by the pilot into the slot, and then moved by the pilot in the opposite direction. Access to the step becomes easier by moving the cover into the slot. The pilot places the sole of the foot on the step and rotates the step in the opposite direction with the cover.

[0012] In one embodiment of the invention, the pilot step mechanism comprises a spring located on the cover in connection with the hinge. When the cover is moved by the pilot, the spring twists and stores energy. By means of the twisting of the spring, the cover moves into the slot. When the force applied by the pilot is released, the energy stored by the spring is also released, allowing the cover to return to its previous position.

[0013] In one embodiment of the invention, the pilot step mechanism comprises a stopper that ensures that the step stops when it is opened out of the slot by a threshold value distance predetermined by the user. The stopper is located inside the slot. The step stops by hitting the step stopper when it is at a distance predetermined by the user. The stopper can preferably be in cylindrical form extending throughout the slot.

[0014] In one embodiment of the invention, the pilot step mechanism comprises a protector located on the body. There is a slot inside the protector. In the first position (I), the protector creates an aerodynamic surface to ensure continuity of air flow with the step and cover. The protector surrounds the step and the cover all around.

[0015] The pilot step mechanism realised to achieve the purpose of this invention is shown in the attached figures, and of these figures;

[0016] Figure 1 is schematic view of the body, slot and cockpit (K).

[0017] Figure 2 is perspective view of the step when it is in the first position (I).

[0018] Figure 3 is front view of the step when it is in the first position (I).

[0019] Figure 4 is perspective view of the step when it is in the second position (II).

[0020] The parts in the figures are numbered one by one and the equivalents of these numbers are given below.

[0021] 1 . Pilot step mechanism

[0022] 2. Body

[0023] 3. Slot

[0024] 4. Hinge

[0025] 5. Step

[0026] 6. Spring 7. Cover

[0027] 8. Stopper

[0028] 9. Protector

[0029] (K) Cockpit

[0030] (1) First Position

[0031] (II) Second Position

[0032] The pilot step mechanism (1 ) comprises a body (2) located on the aircraft, a cockpit (K) located on the body (2), a slot (3) that creates an opening in the form of a recess on the body (2) and allows the pilots to access the cockpit (K) by placing their foot, at least one hinge (4) located on the slot (3), at least one step (5) located rotatably on the slot (3) via the hinge (4), extending outward from the slot (3) around the hinge (4), thus allowing the pilots to access the cockpit (K) by placing their foot at least partially in the slot (3), a first position (I) where the step (5) is closed and is aerodynamically form compatible with the body (2), and a second position (II) where the step (5) is open and is moved out of the slot (3) by the pilot and allows the pilot's foot to access the slot (3). (Figure 1 )

[0033] The pilot step mechanism (1 ) that is the subject of the invention comprises At least one spring (6) that is located on the step (5), allows the step (5) to be moved by storing energy while the step (5) is brought from the first position (I) to the second position (II) by the pilots placing their foot on the step (5), and enables the step (5) to return from the second position (II) to the first position (I) when the force applied by the pilot is released.

[0034] The pilot step mechanism (1 ) comprises a body (2) present on the aircraft. There is a cockpit (K) on the body (2). The pilot is located in the cockpit (K), provides the necessary controls for the flight and directs the aircraft. There is a slot (3) on the body

[0035] (2) that creates a space inside the body (2) for the pilot to reach the cockpit (K). There is at least one hinge (4) on the slot (3) to provide rotational movement. There is a step (5) on the slot (3) that rotates around the hinge (4). The step (5) rotates out of the slot

[0036] (3) around the hinge (4) when the pilot moves it. In this way, the pilots rise by pressing their foot on the step (5) and reaches the cockpit (K). There is a first position (I) where the step (5) is aerodynamically form compatible with the body (2) so as not to protrude. In the first position (I), the step (5) is located motionless and closed in the slot (3). There is a second position (II) to which the step (5) is brought by the pilot by moving it out of the slot (3). In the second position (II), the step (5) extends from the body (2) in an open position.

[0037] The pilot step mechanism (1 ) comprises at least one spring (6) located on the step (5). While the step (5) is brought from the first position (I) to the second position (II) by the pilot, the spring (6) stores energy by means of the force applied by the pilot. When the force applied by the pilot is released, the energy stored by the spring (6) is released, allowing the step (5) to move from the second position (II) to the first position (I).

[0038] In an embodiment of the invention, the pilot step mechanism (1 ) comprises at least one cover (7) that is located in the slot (3) in a rotatable manner around the hinge (4), is the part that the pilot's foot first contacts with, covers the slot (3) so that it comes into contact with the step (5) in the first position (I), and is at least partially rotated by the pilot, thereby allows the pilots to put their foot into the slot (3) and place it on the step

[0039] (5). By means of the cover (7), the pilots can easily grasp the step (5) and place their foot on the step (5).

[0040] In an embodiment of the invention, the pilot step mechanism (1 ) comprises the cover (7) that is moved into the slot (3) by the pilots and rotates around the hinge (4), and the step (5), which the pilots grasp through the cover (7) and move by rotating it around the hinge (4) towards the outside of the slot (3), allowing them to access the cockpit (K) by stepping on it. The pilots first push the cover (7) into the slot (3) with their foot or hand, then reach the step (5) and move the step (5) out of the slot (3). Thus, they climb into the cockpit (K) by taking support from the step (5). (Figure 2)

[0041] In an embodiment of the invention, the pilot step mechanism (1 ) comprises the cover (7), which is first moved into the slot (3) by the pilot, and then the step (5), which is moved in the opposite direction to the cover (7) by the pilot. The cover (7) is moved into the slot (3), and the step (5) is moved out of the slot (3). In this way, access to the cockpit (K) becomes easier.

[0042] In an embodiment of the invention, the pilot step mechanism (1 ) comprises the spring

[0043] (6) located on the cover (7) and stores energy when the cover (7) is moved by the pilot, thus allowing the cover (7) to move into the slot (3), and allows the cover (7) to return to its previous position when the force applied by the pilot is released. By means of the spring (6) on the cover (7), when the force applied to the cover is released, the cover

[0044] (7) returns to its previous position.

[0045] In an embodiment of the invention, the pilot step mechanism (1 ) comprises a stopper

[0046] (8) located in the slot (3) and causes the step (5) to stop by hitting the step (5) when the step (5) is at a distance predetermined by the user. By means of the stopper (8), the step (5) can move within the limits predetermined by the user. (Figure 4)

[0047] In an embodiment of the invention, the pilot step mechanism (1 ) comprises a protector

[0048] (9) that is located on the body (2), comprises a slot (3), surrounds the step (5) and the cover (7), and forms an aerodynamic surface to ensure continuity of air flow with the step (5) and cover (7) in the first position (I). By means of the protector (9), both the step (5) and the cover (7) are protected from external influences, and the pilot step mechanism (1 ) is mounted on the aircraft without creating an aerodynamic disadvantage. (Figure 3)

Claims

CLAIMS1. A pilot step mechanism (1 ) comprising a body (2) located on the aircraft, a cockpit (K) located on the body (2), a slot (3) that creates an opening in the form of a recess on the body (2) and allows the pilots to access the cockpit (K) by placing their foot, at least one hinge (4) located on the slot (3), at least one step (5) located rotatably on the slot (3) via the hinge (4), extending outward from the slot (3) around the hinge (4), thus allowing the pilots to access the cockpit (K) by placing their foot at least partially in the slot (3), a first position (I) where the step (5) is closed and is aerodynamically form compatible with the body (2), and a second position (II) where the step (5) is open and is moved out of the slot (3) by the pilot and allows the pilot's foot to access the slot (3), characterised by comprising at least one spring (6) located on the step (5) and allowing the step (5) to be moved by storing energy while the step (5) is brought from the first position (I) to the second position (II) by the pilots placing their foot on the step (5), and enables the step (5) to return from the second position (II) to the first position (I) when the force applied by the pilot is released.

2. The pilot step mechanism (1 ) according to Claim 1 , comprising at least one cover (7) that is located in the slot (3) in a rotatable manner around the hinge (4), is the part that the pilot's foot first contacts with, covers the slot (3) so that it comes into contact with the step (5) in the first position (I), and is at least partially rotated by the pilot, thereby allows the pilots to put their foot into the slot (3) and place it on the step (5).

3. The pilot step mechanism (1 ) according to Claim 2, comprising the cover (7) that is moved into the slot (3) by the pilots and rotates around the hinge (4), and the step (5), which the pilots grasp through the cover (7) and move by rotating it around the hinge (4) towards the outside of the slot (3), allowing them to access the cockpit (K) by stepping on it.

4. The pilot step mechanism (1 ) according to Claim 2 or Claim 3, comprising the cover (7) that is first moved into the slot (3) by the pilot, and the step (5) that is then moved in the opposite direction with the cover (7) by the pilot.

5. The pilot step mechanism (1 ) according to Claims 2 to 4, comprising the spring (6) located on the cover (7) and stores energy when the cover (7) is moved by the pilot, thus allowing the cover (7) to move into the slot (3), and allows the cover (7) to return to its previous position when the force applied by the pilot is released.

6. The pilot step mechanism (1 ) according to any of the previous claims, comprising a stopper (8) that is located inside the slot (3) and ensures that the step (5) stops by hitting the step (5) when the step (5) is at a distance predetermined by the user.

7. The pilot step mechanism (1 ) according to Claims 2 to 6, comprising a protector (9) that is located on the body (2), comprises a slot (3), surrounds the step (5) and the cover (7), and forms an aerodynamic surface to ensure continuity of air flow with the step (5) and cover (7) in the first position (I).

Citation Information

Patent Citations

  • Normally-closed pedal and helicopter

    CN209700911U

  • Foldable step

    US2417987A