A lock system
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- TUSAS TURK HAVACILIK VE UZAY SANAYII ANONIM SIRKETI
- Filing Date
- 2026-01-30
- Publication Date
- 2026-08-06
Smart Images
Figure TR2026050110_06082026_PF_FP_ABST
Abstract
Description
[0001] DESCRIPTION
[0002] A LOCK SYSTEM
[0003] The present invention relates to a lock system capable of being opened in an emergency situation in addition to routine operation, preventing inadvertent opening of the lock, and providing low radar visibility.
[0004] Particularly in lock systems in the aviation sector, the criticality of the opening of the lock bears great importance in application areas such as landing gear depending on the field of application. The ability of the lock to be opened while in a locked state in the event of failure of the actuator used for the routine operation, which is the normal operating mode, provides a redundant system that ensures preventing the occurrence of an accident that could cause loss of life and property of the aircraft in emergency situations. In lock systems having an emergency opening requirement, it is also of importance to simultaneously provide the low radar visibility expected particularly in advanced combat aircraft. In this context, there is a need to develop a lock system that is capable of being opened in emergency situations and possesses low radar visibility. The situation where the gap between the lock pin and the hook channel is relatively large causes the radar invisibility capability of the aircraft to be relatively low. Additionally, other equipment containing similar purposes are designed in a manner to allow free opening during emergency opening; therefore, an uncontrolled movement can occur.
[0005] In the United States origin patent document numbered US6811118B2, included in the prior art, a latch device for locking an aircraft landing gear or an aircraft landing gear door is mentioned. In the invention, there is a series of hinged elements mounted to rotate about respective parallel axes. There is at least one hook and a locking lever connected to said hook via an associated elastically deformable return device. The hook can be unlocked by acting on the locking lever by means of a first actuator during the routine operation process or by means of a second actuator in emergency operating mode when the first actuator fails to open the hook. The second actuator associated with the emergency operating mode is an electromechanical actuator under independent electrical control. The electromechanical actuator comprises two electric motors irreversibly associated with a common differential gear set and has an output shaft controlling the rotation of an emergency unlocking lever cooperating with the locking lever used in routine operation. The hook holds the nut of the system to be locked, said nut constitutes a part fixed to the landing gear. The lower part ofthe hook ensures holding the nut in place. The upper part of the hook passes between two side plates forming the locking lever.
[0006] In the Canadian origin patent document numbered CA2610490C, included in the prior art, an uplock release assembly is mentioned. The assembly comprises a pivot pin having a first end, a second end, and an internal bore, and a release system connected to the first end of the pivot pin. Said release system consists of a cylinder and a piston. The assembly further comprises a hook element, a torque element rotatably mounted to the second end of the pivot pin, a biasing system operatively connected to the torque element, a biasing cylinder of said biasing system, and a biasing means located within the biasing cylinder. When biasing force is applied to the torque element, the locking means provides a locked and rotatable connection in a first position between the torque element and the hook element, and the clutching means connects the torque element with the link element. When torque is applied to the link element, the torque is transmitted to the hook element via the clutching means and locking means, and the hook element is forced to rotate about the pivot pin. The piston counteracts the biasing force, thereby translating the torque element longitudinally sufficiently on the pivot pin to move the torque element and the hook element from said locked and first position to an unlocked and second position allowing the hook element to rotate about the pivot pin.
[0007] Thanks to the lock system developed with this invention, a lock system capable of being opened in an emergency situation in addition to routine operation is provided.
[0008] Another object of the invention is to provide a lock system providing low radar visibility.
[0009] Another object of the invention is to prevent a locking situation outside the control of the pilot.
[0010] Another object of the invention is to provide a system wherein the opening of the lock is provided by hydraulic power.
[0011] Another object of the invention is to ensure the lifting of the lock in a manner that the mechanism holds the hook in the open position when emergency opening is performed.Another object of the invention is to ensure that, in the case of performing power transmission intended for locking from the trigger piston used for routine operation to the mechanism locked after emergency opening, the power coming from the trigger piston used for routine operation is not transmitted to the output.
[0012] The lock system, realized to achieve the object of the invention and defined in the first claim and the claims dependent thereon, comprises a body. The end of the first actuator where it is supported on the body is located in a rotatable manner. The first actuator is a linear actuator. The end of the lever where it is supported on the body is located in a rotatable manner. One end of the lever is rotatably connected to the first actuator. The cover is located on the body and is capable of being opened and closed by rotating about its own axis. The lock pin is located on the cover and is in a geometry extending lengthwise. The hook is located rotatably around the point where it is supported on the body, and ensures the locking of the cover by allowing the lock pin to be seated into the gap therein. In the locked position (I), the hook captures the lock pin by at least partially surrounding the lock pin and ensures the locking of the cover by preventing the up and down movement of the lock pin. In the free position (II), into which the crank and the hook are brought by being rotated relative to the locked position (I) by ensuring the extension of the length of the first actuator while in the locked position (I), a distance remains between the lock pin and the gap within the hook; thereby, in the free position (II), the cover moves freely in the up and down direction, allowing the cover to rotate freely.
[0013] The lock system subject of the invention comprises a crank. The crank is located rotatably about the point where it is supported on the body. The point where the crank is supported on the body and the points where the lever is supported on the body are the same points. The axis on which the crank is located rotatably and the axis on which the lever is located rotatably are coaxial. The crank is located in a manner to rotate together with the lever from the point where it is supported on the body, and according to manufacturer preference, the lever and the crank are capable of rotating independently of each other about the points where they are supported on the body. The lever pin extends outwardly from the lever and transmits the lever movement by contacting the crank while the lever rotates in the clockwise direction. While transitioning from the locked position (I) to the free position (II) by rotating in the clockwise direction, the lever rotates the crank in the clockwise direction by means of the lock pin and the crank groove. The crank groove is located on the crank and is in geometric dimensions in which the cylindrical lock pin can be seated and is in an arc form. The secondary part is located on the crank at the end of the crank close to thefirst actuator. It is located rotatably about another point at a distance predetermined by the manufacturer from the point where the crank is supported on the body. The gripper extends outwardly from the secondary part in a manner to grip the lever pin. Thanks to the gripper gripping the lever pin in the free position (II), the transmission of the lever movement to the crank is ensured while the lever rotates in the counter-clockwise direction to transition from the free position (II) to the locked position (I). The second actuator is located on the body and is positioned to extend in a direction different from the direction in which the first actuator extends. The second actuator is triggered in a manner that its length changes in a secondary triggering situation which is an emergency situation. The secondary part extension is a protrusion extending outwardly from the end of the secondary part close to the second actuator, and ensures the transmission of the second actuator movement to the secondary part while transitioning from the locked position (I) to the free position (II). The spring is located between the hook and the crank, and ensures the rotation of the secondary part in the counter-clockwise direction and ensures the rotation of the hook and the crank in directions opposite to each other.
[0014] In an embodiment of the invention, the lock system comprises a stopper which is an extension extending outwardly from the crank. The stopper ensures the stopping of the limiter at the end of the first emergency position (III). The limiter is located on the crank. The stopper is positioned on the crank in a manner to stop by impacting while the limiter rotates in the clockwise direction while being brought to the first emergency position (III). The limiter is located on the secondary part at the other end relative to the end where the secondary part extension is located.
[0015] In an embodiment of the invention, the lock system comprises a locked position (I). In the locked position (I), the second actuator is in substantially complete contact with the secondary part extension in a manner not to apply force to or move the secondary part extension. In the locked position (I), the gripper surrounds the lever pin from the upper side of the lever pin; thereby, when the crank is rotated in the counter-clockwise direction from the free position (II), the crank movement is transmitted to the lever via the lock pin through the gripper. There is a first emergency position (III) into which the secondary part is brought by rotating in the clockwise direction by means of the second actuator pushing the secondary part extension by extending its length from the locked position (I). In the first emergency position (III), there is no structural contact between the lever pin and the secondary part extension. In the first emergency position (III), the limiter contacts the stopper. The crank is brought to the first emergency position (III) by being rotated in theclockwise direction from the locked position (I). The second emergency position (IV) is the position into which the secondary part is brought by rotating in the counter-clockwise direction under the effect of spring force from the first emergency position (III). In the second emergency position (IV), the lever pin and the secondary part extension move together and simultaneously by contacting each other.
[0016] In an embodiment of the invention, the lock system comprises a hook interface which is a protrusion extending outwardly from the left side of the hook. There is a crank interface which is an extension extending outwardly from the left side of the crank. The hook interface is located on the hook on the side remote from the secondary part. The crank interface is located on the crank on the side remote from the secondary part. There is a spring located between the hook interface and the crank interface, ensuring that the secondary part is brought from the first emergency position (III) by rotating in the counter-clockwise direction. The spring ensures that, in the locked position (I), the line passing between the point where the hook and the crank are supported and the point where they are connected to each other is not straight but is off-center. In the aligned position (H), the spring provides the locked position (I) in which an off-center assembly relationship exists between the crank and the coupler, by ensuring the rotation of the crank by an amount in the counter-clockwise direction and the rotation of the coupler by an amount in the clockwise direction.
[0017] In an embodiment of the invention, the lock system comprises a coupler located between the crank and the hook. The coupler is rotatably connected to the crank. The coupler transmits the crank movement to the hook. The coupler is rotatably connected to the hook. Thanks to the coupler, during the movement from the locked position (I) to the free position (II), the rotation of the crank in the clockwise direction, the rotation of the coupler in the counter-clockwise direction, and the rotation of the hook in the clockwise direction are ensured. The hook is mounted as rotatably supported on the body from one point thereof, and as rotatably supported on the coupler from another point thereof close to the spring.
[0018] In an embodiment of the invention, the lock system comprises a hook channel. The hook channel is the portion which is an opening located on the hook. The upper extension is the upper surface of the hook channel. The lower extension is the lower surface of the hook channel. While the upper extension extends along the hook channel in a manner to be substantially straight, the lower extension has a form the width of which gradually increases towards the cover along the hook channel. The contact position (E) is the position where the first contact of the hook with the lock pin occurs while moving from the free position (II)to the locked position (I). In the contact position (E), the lock pin applies force to the hook in the counter-clockwise direction by contacting the upper extension; thereby, ensuring that the hook surrounds the lock pin. The capture position (Y) is the position where the lock pin is ensured to be brought into contact with the lower extension by bringing the hook from the contact position (E) by rotating in the counter-clockwise direction while moving from the free position (II) to the locked position (I). Thereby, it is ensured that the lock pin is taken into the hook starting from the contact position (E). The aligned position (H) is the position into which the hook is brought by rotating in the counter-clockwise direction from the capture position (Y), and in which the lock pin is seated into the hook channel in a manner to contact the lower extension. The radial path is the imaginary line followed by the lock pin between the contact position (E) and the aligned position (H). The geometry of the radial path is in substantially identical geometry with the extension of the lower extension widening towards the cover and is in the form of an inclined straight line. The radial path is an imaginary line. The circular path is the path on which the lock pin advances between the aligned position (H) and the locked position (I). The circular path is an imaginary line in an arc form sweeping a radius predetermined by the manufacturer around the point where the hook is rotatably located. By means of the rotation of the hook in the counter-clockwise direction while moving from the free position (II) to the locked position (I), it is allowed that the crank and the coupler are rotated in opposite directions to each other. The lock pin provides relatively low radar visibility for the body thanks to a minimum gap remaining between itself and the hook channel, sufficient only to move, by moving on the circular path and the radial path between the locked position (I) and the free position (II).
[0019] In an embodiment of the invention, the lock system comprises a secondary part pin on which the secondary part is rotatably mounted, and which ensures the rotation of the secondary part around the axis along which it extends. The secondary part is connected to the crank by means of the secondary part pin.
[0020] In an embodiment of the invention, the lock system comprises a second actuator located on the body in a manner to be positioned in a direction perpendicular to the direction in which the secondary part extends lengthwise, thereby ensuring the transition of the secondary part from the first emergency position (III) to the second emergency position (IV). The secondary part extends between the crank and the first actuator.
[0021] In an embodiment of the invention, the lock system comprises a transferor, which is an extension extending outwardly from the secondary part, surrounding the secondary part pinby contacting the secondary part pin from the left and right sides thereof in a form-fitting manner, thereby ensuring that the secondary part rotates together with the secondary part pin around the direction in which the secondary part pin extends, during the bringing of the secondary part from the locked position (I) to the first emergency position (III) by the second actuator extending linearly. The transferors transmit the rotation of the secondary part pin for the rotation of the secondary part as well, thanks to the form fit. The transferors are located symmetrically on the front and rear sides of the body; thereby, the triggering movement from the front side of the body ensures the rotation of the secondary part pin extending to both sides of the body, the transferor, and the secondary part.
[0022] In an embodiment of the invention, the lock system comprises a spring extending in a spiral form, manufactured from a material flexible enough to stretch, and mounted in a pre-loaded manner by the manufacturer in the locked position (I), in the free position (II), and between the locked position (I) and the free position (II).
[0023] In an embodiment of the invention, the lock system comprises a lock pin which is in a cylindrical form. Thanks to the cylindrical form, a contribution is made to the continuity of the hook movements and the stress to which the lock pin is subjected is kept at relatively low levels.
[0024] In an embodiment of the invention, the lock system comprises a hook channel having a distance between inner walls in substantially the same dimensions as the outer diameter of the lock pin. Thereby, a contribution is made to low radar visibility.
[0025] The lock system, realized to achieve the object of the invention, is illustrated in the attached figures, wherein;
[0026] Figure 1 - The perspective view of the body, the first actuator, the second actuator, and the hook.
[0027] Figure 2 - The side view of the first actuator, the lever, the cover, the lock pin, the hook, the hook interface, the crank, the crank interface, the coupler, the secondary part, and the second actuator in the locked position (I).
[0028] Figure 3 -The side view of the first actuator, the lever, the cover, the lock pin, the secondary part, and the second actuator in the free position (II).Figure 4 - The side view of the first actuator, the lever, the secondary part, the lever pin, the crank groove, the gripper, and the second actuator in the first emergency position (III).
[0029] Figure 5 - The side view of the first actuator, the lever, the secondary part, the lever pin, the gripper, and the second actuator in the second emergency position (IV).
[0030] Figure 6 - The side view of the lever, the lever pin, the crank, the crank groove, and the stopper in the locked position (I).
[0031] Figure 7 - The side view of the first actuator, the crank, the secondary part, the gripper, the secondary part extension, the limiter, the secondary part pin, the transferor, the lever pin, the crank, and the stopper in the locked position (I).
[0032] Figure 8 - The perspective view of the body, the secondary part, the secondary part pin, and the transferor.
[0033] Figure 9 - The side view of the lock pin and the upper extension in the contact position (E).
[0034] Figure 10 - The side view of the lock pin and the lower extension in the capture position (Y).
[0035] Figure 11 - The side view of the first movement of the lock pin, the circular path, and the radial path between the capture position (Y) and the aligned position (H) following the capture position (Y).
[0036] Figure 12 - The side view of the second movement performed by the lock pin, the circular path, and the radial path between the capture position (Y) and the aligned position (H) following Figure 11.
[0037] Figure 13 - The side view of the lock pin, the circular path, and the radial path in the aligned position (H) into which it is brought following Figure 12.
[0038] The parts in the figures are individually numbered and the counterparts of these numbers are given below.
[0039] 1. Lock System
[0040] 2. Body
[0041] 3. First Actuator4. Lever
[0042] 410. Lever Pin
[0043] 5. Hook
[0044] 510. Hook Interface
[0045] 520. Hook Channel
[0046] 530. Upper Extension
[0047] 540. Lower Extension
[0048] 6. Crank
[0049] 610. Crank Groove
[0050] 620. Stopper
[0051] 630. Crank Interface
[0052] 7. Secondary Part
[0053] 710. Gripper
[0054] 720. Secondary Part Extension 730. Limiter
[0055] 740. Secondary Part Pin 750. Transferor
[0056] 8. Second Actuator
[0057] 9. Spring
[0058] 10. Coupler
[0059] K. Cover
[0060] P. Lock Pin
[0061] I. Locked Position
[0062] 11. Free Position
[0063] III. First Emergency Position IV. Second Emergency Position Y. Capture Position
[0064] E. Contact Position
[0065] H. Aligned Position
[0066] C. Circular Path
[0067] R. Radial PathThe lock system (1) comprises a body (2); a first actuator (3) located rotatably about the axis where it is supported on the body (2), extending and shortening along the axis along which it extends; at least one lever (4) located rotatably about the axis where it is supported on the body (2), connected to the first actuator (3); at least one cover (K) located on the body (2) in a manner movable relative to the body (2); at least one lock pin (P) located on the cover (K), extending lengthwise; at least one hook (5) located rotatably about the axis where it is supported on the body (2), ensuring the locking of the cover (K) by allowing the lock pin (P) to be seated therein; a locked position (I) wherein the lock pin (P) is located within the hook (5) and the movement of the cover (K) is prevented; and a free position (II) into which the hook (5) is brought by rotating from the locked position (I) with the extension of the length of the first actuator (3) relative to the locked position (I) by being triggered, and wherein the cover (K) remains free by the lock pin (P) exiting the hook (5). (Figure -1 , Figure -2, Figure -3)
[0068] The lock system (1) subject of the invention comprises at least one crank (6) located on the body (2) in a manner to rotate together with the lever (4) and coaxial with the axis where the lever (4) is supported on the body (2), located rotatably about the axis where it is supported on the body (2); a lever pin (410) extending outwardly from the lever (4), transmitting the rotation of the lever (4) to the crank (6) by contacting the crank (6); a crank groove (610) located on the crank (6), being in a curved form, allowing the seating of the lever pin (410) thereon and allowing the transmission of the lever (4) movement to the crank (6) while the lever (4) transitions from the locked position (I) to the free position (II); a secondary part (7) located on the crank (6), positioned rotatably about an axis at a distance predetermined by the manufacturer from the axis where the crank (6) is supported on the body (2); a gripper (710) located on the secondary part (7) in a manner to extend outwardly from the secondary part (7), ensuring the transmission of the lever (4) movement to the crank (6) while the lever (4) transitions from the free position (II) to the locked position (I) thanks to gripping the lever pin (410); a second actuator (8) located on the body (2), extending in a direction different from the direction in which the first actuator (3) extends, triggered in a secondary triggering situation, the length of which changes along the direction in which it extends; a secondary part extension (720) extending outwardly from the end of the secondary part (7) close to the second actuator (8), ensuring the transmission of the second actuator (8) movement to the secondary part (7); and a spring (9) having one end connected to the hook (5) and the other end connected to the crank (6), ensuring the rotation of the secondary part (7) towards the point where the crank (6) is supported and ensuringthe rotation of the hook (5) and the crank (6) in directions opposite to each other. (Figure -4, Figure -6)
[0069] The first actuator (3) is triggered during routine operation. The lever (4) is located rotatably about the same axis as the crank (6). In the locked position (I), the lock pin (P) located on the cover (K) ensures that the cover (K) is locked by being located within the hook (5). Thanks to the hook (5) being brought by rotating with the triggering of the first actuator (3) from the locked position (I), the cover (K) and the lock pin (P) open by rotating about the direction in which they are supported, and the opening of the cover (K) is ensured. During the movement from the locked position (I) to the free position (II), by ensuring that the lock pin (P) located on the cover (K) exits from within the hook (5), the becoming free of the lock of the cover (K) and the opening of the cover (K) by rotating are ensured. (Figure -1 , Figure -2, Figure -3)
[0070] The components numbered crank (6), lever (4), secondary part (7), and coupler (10) are structurally connected. In routine operation, the movement of the first actuator (3) is transmitted to the crank (6) by means of the lever (4), and in an emergency situation, the movement of the second actuator (8) is transmitted to the crank (6) by means of the secondary part (7). The movement of the first actuator (3) and the second actuator (8) is transmitted to the hook (5) via the crank (6). The crank groove (610) is the portion located on the crank (6), in the form of an arc with a radius predetermined by the manufacturer, and is form-fitting with the lever pin (410). In the locked position (I), the lever pin (410) is seated onto the crank groove (610). The lever (4), where the first actuator (3) is triggered, transmits the movement to the crank (6) over the crank groove (610) by means of the lever pin (410). The secondary part (7) ensures transmitting the movement of the second actuator (8) to the crank (6) in emergency situations. In the second emergency position (IV), the lever pin (410) is seated onto the gripper (710) and contacts the secondary part extension (720); thereby, the lever (4) is structurally disconnected from the crank (6), and the lever (4) and the first actuator (3) are prevented from creating resistance in the direction opposite to opening. Meanwhile, the hook (5) opens by rotating with the force of the spring (9). The second actuator (8) is triggered only in emergency situations. The second actuator (8) extends substantially completely perpendicular relative to the surface where it contacts the secondary part extension (720). The spring (9), following the disabling of the structural connection of the crank (6) and the lever (4) starting from the first emergency position (III), ensures the opening of the hook (5) by changing its length and ensures the lifting of the lock of the cover (K) by the opening of the hook (5) for a single time. (Figure -4, Figure -6)In an embodiment of the invention, the lock system (1) comprises a stopper (620) which is a protrusion extending outwardly from the crank (6), and a limiter (730) which is an extension extending outwardly from the side of the secondary part (7) close to the crank (6), preventing the rotation of the secondary part (7) by contacting the stopper (620), thereby limiting the movement of the secondary part (7). During the transition from the locked position (I) to the first emergency position (III), the limiter (730) rotates towards the stopper (620) about the axis along which the secondary part pin (740) extends by means of the triggering of the second actuator (8), and in the first emergency position (III), the limiter (730) stops by contacting the stopper (620). Thereby, in the first emergency position (III), the function of the gripper (710) at least partially surrounding the lever pin (410) is eliminated, and the movements of the lever pin (410) and the gripper (710) become independent of each other. (Figure -7)
[0071] In an embodiment of the invention, the lock system (1) comprises the locked position (I) which is the position where the second actuator (8) substantially contacts the secondary part extension (720) and where the gripper (710) contacts the lever pin (410) by at least partially surrounding it; a first emergency position (III) into which the secondary part (7) is brought by rotating from the locked position (I) in an emergency situation by means of the second actuator (8) pushing the secondary part extension (720) by extending its length, wherein a distance exists between the lever pin (410) and the secondary part extension (720), and into which the crank (6) is brought by being rotated from the locked position (I) with the limiter (730) contacting the stopper (620); and a second emergency position (IV) into which the secondary part (7) is brought by rotating towards the crank (6) from the first emergency position (III) under the effect of the spring (9) force, and into which the lever pin (410) and the secondary part extension (720) are brought by moving together by contacting each other. The first emergency position (III) is the situation where the first actuator (3) does not operate and the lock of the cover (K) needs to be lifted and opened for a single time. By means of the first emergency position (III) and the second emergency position (IV), the first actuator (3) and the lever (4) are disabled, ensuring that the rotation movement is transmitted to the crank (6) by means of the secondary part (7), and the opening of the hook (5) is ensured in a manner to be for a single time in the second emergency position (IV). (Figure -4, Figure -5)
[0072] In an embodiment of the invention, the lock system (1) comprises a hook interface (510) which is an extension extending outwardly from the hook (5); a crank interface (630) which is an extension extending outwardly from the crank (6); and a spring (9) having one endconnected to the hook interface (510) and the other end connected to the crank interface (630), ensuring the rotation of the secondary part (7) towards the point where the crank (6) is supported and ensuring the rotation of the hook (5) and the crank (6) in directions opposite to each other. The hook interface (510) and the crank interface (630) are located mutually opposite to each other. The hook interface (510) and the crank interface (630) are located on the other side of the crank (6) relative to the side where the first actuator (3) or the second actuator (8) is connected to the crank (6). Thanks to the spring (9), the crank (6) and the secondary part (7) rotate in the counter-clockwise direction between the first emergency position (III) and the second emergency position (IV); thereby, the lever pin (410) is positioned in a manner to contact the gripper (710) and the secondary part extension (720). When the lock pin (P) comes to the aligned position (H) within the hook channel (520), an imaginary line in an eccentric form is formed between the points where the crank (6) and the coupler (10) are supported, and the unintentional opening of the cover (K) is prevented. While the lock pin (P) is in the aligned position (H) within the hook channel (520), thanks to the spring (9), the rotation of the crank in the counter-clockwise direction and the rotation of the coupler (10) in the clockwise direction by an amount are ensured, and the imaginary line in an eccentric form is provided. (Figure -2)
[0073] In an embodiment of the invention, the lock system (1) comprises at least one coupler (10) having one end rotatably connected to the crank (6) and the other end rotatably connected to the hook (5), ensuring the rotation of the hook (5) in the opposite direction relative to the crank (6); and a hook (5) wherein a distance exists between the axis where it is supported on the body (2) and the axis where it is supported on the coupler (10). There is a distance between the direction in which the hook (5) is rotatably located and the direction in which the coupler (10) is connected to the hook (5). Thereby, by obtaining a four-bar mechanism with the lever (4), the hook (5), the crank (6), and the coupler (10), the angle range in which the hook (5) can rotate is increased and the stress to which it is subjected is reduced. (Figure -2)
[0074] In an embodiment of the invention, the lock system (1) comprises a hook channel (520) which is a recess located on the hook (5); an upper extension (530) which is the surface of the hook channel (520) on the side closest to the axis where the hook (5) is supported; a lower extension (540) which is the surface of the hook channel (520) on the side furthest from the axis where the hook (5) is supported, extending in a form widening relative to the hook channel (520); a contact position (E) which is the position where the first contact with the lock pin (P) occurs while the hook (5) moves from the free position (II) to the lockedposition (I), allowing the lock pin (P) to be taken into the hook (5) thanks to the lock pin (P) applying force to the hook (5) in the counter-clockwise direction by contacting the upper extension (530); a capture position (Y) which is the position into which the hook (5) is brought from the contact position (E) while moving from the free position (II) to the locked position (I) and wherein the lock pin (P) is ensured to be made to contact the lower extension (540), thereby ensuring that the lock pin (P) is taken into the hook (5) starting from the contact position (E); an aligned position (H) which is the position into which the hook (5) is brought by rotating from the capture position (Y), and wherein the lock pin (P) is seated into the hook channel (520) in a manner to contact the lower extension (540); a radial path (R) which is an imaginary line followed by the lock pin (P) between the contact position (E) and the aligned position (H); a circular path (C) which is an imaginary line followed by the lock pin (P) between the aligned position (H) and the locked position (I), sweeping a radius predetermined by the manufacturer around the axis where the hook (5) is rotatably located; and a lock pin (P) allowing the crank (6) and the coupler (10) to be rotated in opposite directions to each other by rotating the hook (5) by means of being moved towards the hook (5) from the free position (II), moving in a manner to provide low radar visibility thanks to a gap remaining between itself and the hook channel (520) by moving on the circular path (C) and the radial path (R) between the locked position (I) and the free position (II). In addition to the directions of the circular path (C) and the radial path (R) followed by the lock pin (P) between the locked position (I) and the free position (II), thanks to the contact position (E), the capture position (Y), and the aligned position (H) obtained by means of the hook channel (520), the upper extension (530), and the lower extension (540), the capturing of the lock pin (P) by the hook (5) and the locking of the cover (K) in a manner to obtain low radar visibility are ensured. (Figure -9, Figure -10, Figure -11, Figure -12, Figure -13)
[0075] In an embodiment of the invention, the lock system (1) comprises a secondary part pin (740) on which the secondary part (7) is rotatably mounted and which allows the rotation of the secondary part (7) around its own axis. Thereby, it is ensured that the secondary part (7) rotates independently from the crank (6) between the first emergency position (III) and the second emergency position (IV). (Figure -5, Figure -7, Figure -8)
[0076] In an embodiment of the invention, the lock system (1) comprises a second actuator (8) positioned on the body (2) in a manner to extend in a direction perpendicular to the direction in which the secondary part (7) extends lengthwise, thereby ensuring the transition of the secondary part (7) from the first emergency position (III) to the second emergency position (IV). Thereby, it is ensured that the linear force applied by the second actuator (8) createsa maximum moment arm on the secondary part (7), and it is ensured that the secondary part (7) moves by rotating rapidly in an emergency situation. (Figure -2, Figure -4)
[0077] In an embodiment of the invention, the lock system (1) comprises at least one transferor (750) which is a protrusion extending outwardly from the secondary part (7), surrounding the secondary part pin (740) at least partially in a form-fitting manner, thereby ensuring that the secondary part (7) rotates together with the secondary part pin (740) around the direction in which the secondary part pin (740) extends during the bringing of the secondary part (7) from the locked position (I) to the first emergency position (III) by the second actuator (8) extending linearly, and ensuring the transmission of the secondary part (7) movement to the secondary part (7) located on the other side relative to the body (2) such that the body (2) remains between them. The secondary part pin (740) is preferably of rectangular cross-section, and the inner wall of the transferor (750) contacts the outer wall of the secondary part pin (740) substantially completely and is form-fitting. Thereby, the rotation of the secondary part pin (740) between the first emergency position (III) and the second emergency position (IV) allows the secondary part (7) to rotate around the axis along which the secondary part pin (740) extends by means of the transferor (750). (Figure -5, Figure -7)
[0078] In an embodiment of the invention, the lock system (1) comprises a spring (9) extending in a helical form, manufactured from flexible material, configured in a pre-loaded manner in the locked position (I), in the free position (II), and between the locked position (I) and the free position (II). The spring (9) is a helical spring applying force by changing its length. Thanks to the mounting of the spring (9) in a pre-loaded manner, an off-center assembly relationship is provided between the points where the crank (6) and the coupler (10) are supported in the locked position (I); thereby, the unintentional opening of the cover (K) is prevented in the locked position (I). After the lock pin (P) comes to the position shown in Figure -12 within the hook channel (520), the hook (5) comes to the position shown in Figure -13 thanks to the pre-loaded placement of the spring (9). (Figure -2, Figure -11, Figure -12, Figure -13)
[0079] In an embodiment of the invention, the lock system (1) comprises a lock pin (P) which is in a cylindrical form. (Figure -2, Figure -9, Figure -10, Figure -11, Figure -12, Figure -13)In an embodiment of the invention, the lock system (1) comprises a hook (5) having a recess which is form-fitting with the lock pin (P). The recess located on the hook (5) and being form-fitting with the lock pin (P) is the hook channel (520). The width between the inner walls of the hook channel (520) and the diameter value between the outer walls of the lock pin (P) are substantially equal; thereby, a contribution is made to low radar visibility. (Figure -2, Figure -9, Figure -10, Figure -11, Figure -12, Figure -13)
Claims
CLAIMS1. A lock system (1) comprising a body (2); a first actuator (3) located rotatably about the axis where it is supported on the body (2), extending and shortening along the axis along which it extends; at least one lever (4) located rotatably about the axis where it is supported on the body (2), connected to the first actuator (3); at least one cover (K) located on the body (2) in a manner movable relative to the body (2); at least one lock pin (P) located on the cover (K), extending lengthwise; at least one hook (5) located rotatably about the axis where it is supported on the body (2), ensuring the locking of the cover (K) by allowing the lock pin (P) to be seated therein; a locked position (I) wherein the lock pin (P) is located within the hook (5) and the movement of the cover (K) is prevented; and a free position (II) into which the hook (5) is brought by rotating from the locked position (I) with the extension of the length of the first actuator (3) relative to the locked position (I) by being triggered, and wherein the cover (K) remains free by the lock pin (P) exiting the hook (5); characterized in that it comprises; at least one crank (6) located on the body (2) in a manner to rotate together with the lever (4) and coaxial with the axis where the lever (4) is supported on the body (2), located rotatably about the axis where it is supported on the body (2); a lever pin (410) extending outwardly from the lever (4), transmitting the rotation of the lever (4) to the crank (6) by contacting the crank (6); a crank groove (610) located on the crank (6), being in a curved form, allowing the seating of the lever pin (410) thereon and allowing the transmission of the lever (4) movement to the crank (6) while the lever (4) transitions from the locked position (I) to the free position (II); a secondary part (7) located on the crank (6), positioned rotatably about an axis at a distance predetermined by the manufacturer from the axis where the crank (6) is supported on the body (2); a gripper (710) located on the secondary part (7) in a manner to extend outwardly from the secondary part (7), ensuring the transmission of the lever (4) movement to the crank (6) while the lever (4) transitions from the free position (II) to the locked position (I) thanks to gripping the lever pin (410); a second actuator (8) located on the body (2), extending in a direction different from the direction in which the first actuator (3) extends, triggered in a secondary triggering situation, the length of which changes along the direction in which it extends; a secondary part extension (720) extending outwardly from the end of the secondary part (7) close to the second actuator (8), ensuring the transmission of the second actuator (8) movement to the secondary part (7); and a spring (9) having one end connected to the hook (5) and the other end connected to the crank (6), ensuring the rotation of the secondary part (7) towards the point where the crank (6) is supported and ensuring the rotation of the hook (5) and the crank (6) in directions opposite to each other.
2. The lock system (1) according to claim 1, characterized in that it comprises a stopper (620) which is a protrusion extending outwardly from the crank (6); and a limiter (730) which is an extension extending outwardly from the side of the secondary part (7) close to the crank (6), preventing the rotation of the secondary part (7) by contacting the stopper (620), thereby limiting the movement of the secondary part (7).
3. The lock system (1) according to claims 1 and 2, characterized in that it comprises; the locked position (I), which is the position where the second actuator (8) substantially contacts the secondary part extension (720) and where the gripper (710) contacts the lever pin (410) by at least partially surrounding it; a first emergency position (III) into which the secondary part (7) is brought by rotating from the locked position (I) in an emergency situation by means of the second actuator (8) pushing the secondary part extension (720) by extending its length, wherein a distance exists between the lever pin (410) and the secondary part extension (720), and into which the crank (6) is brought by being rotated from the locked position (I) with the limiter (730) contacting the stopper (620); and a second emergency position (IV) into which the secondary part (7) is brought by rotating towards the crank (6) from the first emergency position (III) under the effect of the spring (9) force, and into which the lever pin (410) and the secondary part extension (720) are brought by moving together by contacting each other.
4. The lock system (1) according to any one of the preceding claims, characterized in that it comprises a hook interface (510) which is an extension extending outwardly from the hook (5); a crank interface (630) which is an extension extending outwardly from the crank (6); and a spring (9) having one end connected to the hook interface (510) and the other end connected to the crank interface (630), ensuring the rotation of the secondary part (7) towards the point where the crank (6) is supported and ensuring the rotation of the hook (5) and the crank (6) in directions opposite to each other.
5. The lock system (1) according to any one of the preceding claims, characterized in that it comprises at least one coupler (10) having one end rotatably connected to the crank (6) and the other end rotatably connected to the hook (5), ensuring the rotation of the hook (5) in the opposite direction relative to the crank (6); and a hook (5) wherein a distance exists between the axis where it is supported on the body (2) and the axis where it is supported on the coupler (10).
6. The lock system (1) according to claim 5, characterized in that it comprises; a hook channel (520) which is a recess located on the hook (5); an upper extension (530) which is the surface of the hook channel (520) on the side closest to the axis where the hook (5) is supported; a lower extension (540) which is the surface of the hook channel (520) on the side furthest from the axis where the hook (5) is supported, extending in a form widening relative to the hook channel (520); a contact position (E) which is the position where the first contact with the lock pin (P) occurs while the hook (5) moves from the free position (II) to the locked position (I), allowing the lock pin (P) to be taken into the hook (5) thanks to the lock pin (P) applying force to the hook (5) in the counter-clockwise direction by contacting the upper extension (530); a capture position (Y) which is the position into which the hook (5) is brought from the contact position (E) while moving from the free position (II) to the locked position (I) and wherein the lock pin (P) is ensured to be made to contact the lower extension (540), thereby ensuring that the lock pin (P) is taken into the hook (5) starting from the contact position (E); an aligned position (H) which is the position into which the hook (5) is brought by rotating from the capture position (Y), and wherein the lock pin (P) is seated into the hook channel (520) in a manner to contact the lower extension (540); a radial path (R) which is an imaginary line followed by the lock pin (P) between the contact position (E) and the aligned position (H); a circular path (C) which is an imaginary line followed by the lock pin (P) between the aligned position (H) and the locked position (I), sweeping a radius predetermined by the manufacturer around the axis where the hook (5) is rotatably located; and a lock pin (P) allowing the crank (6) and the coupler (10) to be rotated in opposite directions to each other by rotating the hook (5) by means of being moved towards the hook (5) from the free position (II), moving in a manner to provide low radar visibility thanks to a gap remaining between itself and the hook channel (520) by moving on the circular path (C) and the radial path (R) between the locked position (I) and the free position (II).
7. The lock system (1) according to any one of the preceding claims, characterized in that it comprises a secondary part pin (740) on which the secondary part (7) is rotatably mounted and which allows the rotation of the secondary part (7) around its own axis.
8. The lock system (1) according to any one of claims 3 to 7, characterized in that it comprises a second actuator (8) positioned on the body (2) in a manner to extend in a direction perpendicular to the direction in which the secondary part (7) extends lengthwise, thereby ensuring the transition of the secondary part (7) from the first emergency position (III) to the second emergency position (IV).
9. The lock system (1) according to claim 7 or claim 8, characterized in that it comprises at least one transferor (750) which is a protrusion extending outwardly from the secondary part (7), surrounding the secondary part pin (740) at least partially in a form-fitting manner, thereby ensuring that the secondary part (7) rotates together with the secondary part pin (740) around the direction in which the secondary part pin (740) extends during the bringing of the secondary part (7) from the locked position (I) to the first emergency position (III) by the second actuator (8) extending linearly, and ensuring the transmission of the secondary part (7) movement to the secondary part (7) located on the other side relative to the body (2) such that the body (2) remains between them.
10. The lock system (1) according to any one of the preceding claims, characterized in that it comprises a spring (9) extending in a helical form, manufactured from flexible material, configured in a pre-loaded manner in the locked position (I), in the free position (II), and between the locked position (I) and the free position (II).
11. The lock system (1) according to any one of the preceding claims, characterized in that it comprises a lock pin (P) which is in a cylindrical form.
12. The lock system (1) according to any one of the preceding claims, characterized in that it comprises a hook (5) having a recess which is form-fitting with the lock pin (P).