TENSION MECHANISM THAT ALLOWS THE DOOR TO BE POSITIONED AT DIFFERENT OPENING ANGLES.

Abstract

This invention relates to a tensioning mechanism that enables the secure and stable fixation of doors at different angles on unarmored tactical wheeled military vehicles. The mechanism enhances operational safety and offers flexible control to the user thanks to its ability to be positioned outside the door without compromising sealing, its adaptability to limited mounting spaces, its automatic step-by-step locking at 15° and 45° angles, and its manual locking at angles such as 70°, 80°, and 90°. It also features an adjustable structure to accommodate mounting tolerances and a robust, maintenance-free mechanical solution. Figure 1.

Description

1 TARIFF ALLOWING THE DOOR TO BE POSITIONED AT DIFFERENT OPENING ANGLES. TENSION MECHANISM TECHNICAL AREA 5 This invention is used especially in the defense industry for unarmored tactical wheeled military applications. a door tensioner developed for use in vehicle door systems It relates to the mechanism. More specifically, the invention concerns the mechanism of a vehicle door at different angles. ensuring secure positioning, maintaining its leak-proof properties, and Suitable for working in confined assembly areas, with a high degree of freedom. It involves a modular mechanism. PREVIOUS TECHNIQUE Various tensioning devices have been developed to position vehicle doors at specific angles. And braking mechanisms have long been used in the automotive industry. 15 However, unarmored tactical wheeled military equipment is used especially in the defense industry. Specific conditions for vehicles cause existing systems to be inadequate. is happening. Standard tensioning mechanisms are usually located on the inside of the door and 20 This situation negatively affects the door seal and the installation area. This makes it difficult to use in limited vehicle types. Furthermore, these types of mechanisms... mostly it allows the door to be held at only one or a fixed angle, different It does not offer the possibility of positioning at certain angles. Patent documents numbered US20160281399A1 and US10954703B2 Upon examination, one of them has an electronically assisted aperture adjustment block and automatic control. systems that operate with a helical grooved bar and spring detent mechanism in one, Door control systems with rather complex structures have been presented. However, both The invention differs technically from the existing application in the following respects: 30 - Solution to sealing problems due to the use of in-door placement. not offering, 2 - Its modular structure allows for flexible and adjustable configurations. - Complex systems instead of simple and modular mechanical solutions. It is based on. - Unlike these known techniques, the current invention; - It can be installed on the outside of the door seal and operate without compromising the seal. - Fixed incremental adjustment at specific angles (15°, 45°) and (70°, 80°, 90°) 10 Pinned structure that provides positioning, - Thanks to its spring-loaded ball bearing mechanism, it offers mechanical locking and a secure hold. - Thanks to its kinematic arm system with multiple degrees of freedom, 15 functional in limited spaces, - A modular solution with adjustment plates, adaptable to different vehicle types. It offers. In conclusion, the external mounting offered by the present invention has multiple fixed angles. Features such as positioning, sealing advantage and modularity are known in the technology. It differs technically from existing systems and incorporates an element of innovation. BRIEF DESCRIPTION OF THE INVENTION 25 The purpose of this invention is to create unarmored tactical wheels, especially for use in the defense industry. for integration into the door systems of military vehicles, the door can be positioned at different angles. leakproof, ensuring secure and stable positioning A door that does not impair performance and is suitable for use in limited installation spaces. It is a tensioning mechanism. 30 Another purpose of the invention is to automatically adjust the door to certain angles when it is opened. It offers a tiered structure that allows for its halt. 3 Another purpose of the invention is to prevent the door from accidentally closing using a spring-loaded ball bearing mechanism. Its purpose is to prevent blocking and provide secure fastening. Another objective of the invention is to create an arm with multiple degrees of freedom. Its mechanism offers the flexibility to work in confined spaces. 5 Another aim of the invention is to adapt the system to different vehicle bodies using adjustment plates. The aim is to achieve a modular structure by enabling its adaptability. Another purpose of the invention is to ensure the door seal remains intact throughout the entire mechanism. It is designed to operate outside the door. In these respects, the invention will protect both user safety and vehicle integrity. It offers an innovative mechanical solution. BRIEF DESCRIPTION OF THE FIGURES Figure 1 shows the functional arrangement of all the parts of the mechanical system. Figure 2 shows the general layout of the tensioning mechanism. Figure 3 shows the kinematic arm mechanism and its axes of rotation. Figure 4 shows the angular positioning holes. 20 REFERENCE NUMBERS GIVEN IN THE FIGURES 1- Stepped arm 2- Body sheet metal 3- Spring setscrew 4- Upper transmission plate 25 5- Lower transmission plate 6- Short pin 7- Middle pin 8- Long pin 9- Angle pin 30 10 - Minor sign 11 - The Great Zodiac 12-Body adjustment plate 13-Door adjustment plate 4 14-Outer segment 15-Month Piston Ring 16-Nut 17-Nut 18-Washer 5 19-Washer 20-First angle slot 21-Second angle slot 22-Third angle degree socket 23-Second rotation axis 10 24-Third axis of rotation 25-First axis of rotation 26- Door seal 27-Tension mechanism 28- Cabin mounting bracket 15 29-Door profile 30-Step adjustment pin DETAILED DESCRIPTION OF THE INVENTION This invention allows 20 doors to be attached to unarmored tactical wheeled vehicles used in the defense industry. Developed for integration, allowing the door to be positioned at specific fixed angles. It is related to a door tensioning mechanism (27) that provides. The mechanism in question, It ensures the door is secured when open, preventing it from accidentally closing. It prevents leakage while maintaining the vehicle's watertightness. It is also compatible with limited mounting areas and different vehicle bodies. 25 It is designed to provide this. Tension mechanism (27), vehicle cabin connection bracket (28) and door profile (29) It is placed on the outer surface of the door, not the inside. This allows... It maintains its leak-proof properties and can operate without interfering with the internal space. 30 The body sheet (2) is the load-bearing structural element to which the entire mechanism is attached. It secures the mechanism and on which other elements are positioned. Door adjustment plate (13) and body adjustment plate (12) of the mechanism door and cabin It is used to fine-tune the alignment on that side. Assembly tolerances By compensating for the problem, it guarantees that the system works properly in every vehicle. The element that starts the system's operation is the stepped lever (1). Door hinge axis When it rotates around, the stepped arm (1) receives this motion directly and transmits it. 5 It starts. The stepped arm (1) has pins fixed by welding; these pins It interacts with elements that lock the mechanism at specific positions. This movement, on the upper It is transferred to other mechanical components via the transmission plate (4) and the lower transmission plate (5). These sheets rotate together with the stepped arm (1) and guide the system. The system has three It includes an axial connection point. The first axis of rotation (25) is 10 at the outermost point of the system. It is the axis which provides the widest angle of rotation and is located inside the short pin (6) This axis passes between the upper transmission plate (4) and the body plate (2). It is positioned. The short pin (6) passes through these two parts and establishes the rotational connection. When the door begins to open, movement initially starts along this axis. Along this axis... The resulting rotation initiates the transmission of motion to the rest of the system. Therefore, 15 good bearing with the bushings and axial fixation with the moon segment (15) is provided. The second axis of rotation (23), the middle arm segments of the mechanism It is the short-distance axis of rotation located between the lower transmission plate (5). It provides bearing support. The long pin (8) passes through these parts and provides axial connection. It provides. This is the first breaking point of the system; the movement breaks along this axis, changing direction 20. It can change. It provides short-distance but highly precise rotation. The system This axis makes it possible to adapt to limited mounting space. If this axis If it's not properly aligned, the system will operate under "tension" and may lock up. Therefore, body adjustment is crucial. The alignment is carefully adjusted with the sheet metal (12) and the door adjustment sheet metal (13). Third turn axis (24), the third and usually last link in the system, is the interconnection 25 It is the axis. It is located between the upper transmission plate (4) and the lower transmission plate (5). Middle pin (7) It passes between these two elements, creating the pivot point. The second transmission of motion. It is the point and ensures alignment with the angle pin (9). The angle of the stepped arm (1) and the angle It directly affects the alignment of the pin (9) with the holes. If it moves freely along this axis If this is not possible, the angle pin (9) cannot fit properly into the holes and the system will not fix the angle. It cannot do so. Therefore, precision bearing was done with bushings, with an outer segment (14). It is axially locked. 6 Body adjustment plate (12) and door adjustment plate (13) are attached to the vehicle by the tensioning mechanism (27). designed to ensure it is mounted with proper alignment, These are precisely adjustable intermediate components. These sheets are assembly surfaces originating from production. It compensates for the tolerances and ensures the correct alignment of the mechanism's kinematic axes. It ensures alignment. The area where the fuselage sheet metal (2) will contact on the cabin side is 5 and on the door profile (29), the flatness of the surface and the alignment of the holes are checked. If If there is a tolerance difference of 1–2 mm on the surfaces, this difference is due to the thickness of the adjustment plate. It will be compensated. Body adjustment plate (12) is placed between the body plate (2) and the cabin connection bracket (28) 10 It is placed. By adjusting the distance of the body sheet (2) from the cabin surface, the system It ensures the correct positioning of the main carrier axis (first rotation axis (25)). Door adjustment plate (13), on the door side of the mechanism, step lever (1) and door profile (29) is positioned between. By adjusting the axes of the parts attached to the door, 15 It balances the overall opening movement of the system. Long pin (8), short pin (6) and middle pin (7), upper transmission plate (4) and lower transmission plate (5) It enables them to connect by rotating them together and gives the mechanism three degrees of freedom. They provide a degree of accuracy. The movement occurring at the turning points is low 20 This is provided by friction. Therefore, the pins are small bushing (10) and large bushing (11) It is supported by the small bushing (10) and the large bushing (11) in which the pins rotate. They are metal sleeves and reduce friction, extending the life of the system. Each pin connection is secured with an outer retaining ring (25) to prevent axial play. (14) and are fixed with a retaining ring (15). These retaining rings secure the pins through the bearing. These are circular locks that prevent them from coming out. Anti-rotation nut (16), with its self-locking structure, secures the connections. Another nut (17) that prevents loosening is applied to high load bearing areas. 30 Anti-rotation nut (16), with its flanged part, has a large surface area for the clamping surface. better contact 7 Since the nuts are flanged, washers are not used underneath them. Washers These are flat, circular steel washers conforming to the DIN 125 standard. Their surface width is pin-sized. They are selected according to their diameter. Washers prevent friction caused by rotational movement. manufactured by sheet metal cutting, creating wear on themselves through their forces It prevents the wear and tear of the necessary spare parts. Thus, 5 due to wear. In case of part replacement, using standard parts will prevent the cost from increasing. provides. In the tensioning mechanism (27) the door is opened in a controlled, gradual manner and certain One of the most critical components that enables it to stop at angles is the spring-loaded setscrew (3). This 10 The component makes direct contact with the pins on the stepped arm (1) to form a mechanical component. It works like a "click stop" system. When the door starts to open, the pins on the stepped lever (1) rotate, turning the system It is in contact with the spring setscrew (3) inside. The spring setscrew (3) contains a spring and 15 It is a mechanism with a ball. When the stepped lever (1) exceeds a certain angle, the pin The ball is pressed down and the spring is compressed. When the pin passes this point, the spring recoils and The ball snaps back into its housing, locking the pin. The spring setscrew (3) mechanism is generally connected to the body sheet (2) and 20 A cylindrical body that secures the mechanism is compressed by pin pressure. an energy-storing internal spring limits the advancement of the pin on the stepped lever (1) a ball that acts as a mechanical stopper and a conical or semi-conical casing in which the ball sits It consists of a housing chamber with a spherical shaped recess. There are four stepping pins (30) on the step lever (1). These The pins are fixed by welding them onto the stepped arm (1) at equal intervals. Each The pin shall make contact with the spring-loaded setscrew (3) mounted on the body sheet (2). It is positioned. When the door starts to open, it rotates together with the stepped lever (1). The stepping pins (30) sequentially press on the ball inside the spring setscrew (3). It is implemented and creates a click-type transition. Thanks to this structure, the door opens from the outside. Automatically at 15° and 45° angles without any intervention. It can be stopped. 8 Having multiple stepping pins ensures that the load is distributed to a single point. to prevent concentration and to distribute the contact force evenly with the spring set screw (3) This ensures that the mechanism is both long-lasting and more reliable. Its operation is guaranteed. In the starting position, the door is fully closed. The door is closed. The position in which it is located is (0°). The stepped lever (1) is aligned to the closed position. The pin, It is not in contact with the spring set screw (3). When the door starts to rotate around its hinge, the stepped lever (1) also rotates simultaneously 10 It starts to turn. The stepping arm (1) is fixed by welding to the stepping arm. The pin strikes the ball inside the spring-loaded setscrew (3) during the first angular movement. Gradation The pin compresses the spring behind it by pressing on the ball, and passes through its position slot. It pushes the ball back that far. The stepping pin passes the ball and moves it to a 15° position. When this is complete, the spring is released and the ball moves forward again and settles into its slot. 15 At this point, the stepping pin is physically blocked by the ball bearing, and the gate... It is mechanically paused at a 15° angle. During this process, no user No intervention is needed; it is a purely mechanical clicking motion. When the user continues to open the door further, the stepped lever (1) rotates 20 It continues. The locking mechanism at the 15° position requires a slight adjustment by the user. It is overcome by force (e.g., pushing the door a little harder). At this stage, the stepping pin, It applies pressure to the ball again; the spring compresses once more and the pin comes out of its 15° slot. The stepping pin continues to advance to the second ball bearing slot, at 45°. It reaches its position. Similarly, the stepping pin is spring-loaded in its 45° slot. It is caught by the ball bearing and the system is fixed at this angle. In this way, the door, in the middle It can be kept securely open in the opening. When the door is opened further, the angle pin (9) is activated. The angle pin (9) is activated beforehand. By entering three defined slots manually or semi-automatically, the door opens 30 It ensures that it is fixed in place. The second stage positioning system of the tensioning mechanism (27) allows the door to be positioned more angle pin (9) and to enable it to be fixed at wide angles (70°, 80°, 90°) 9 the corresponding first angle slot (20), second angle slot (21) and third angle slot (22) It works with the intermediate spring setscrew (3) mechanism provided by the system. Beyond pauses, the door's precise fastening in more open positions. This ensures and is critical, especially in outdoor conditions, for secure door positioning. It is important. 5 Angle pin (9) is made of steel, has a cylindrical body, and a conical or rounded end. It is a pin. The movable part of the mechanism is attached to the stepped lever (1) or lower transmission plate (5) It is fixed on. The first angle slot (20), the second angle slot (21) and the third angle slot The socket (22) is a hole drilled into the fixed structure, namely the body sheet (2). Angle pin (9) 10 By entering these openings, they physically restrict the door from opening and It fixes. The angle pin (9) is fixed to the bottom point of the body sheet (2) and the door When it reaches the 70°, 80°, 90° positions, it is axial with the slots on the body plate (2). They are aligned. The first angle slot (20) is at 90 degrees with the door in the fully open position (maximum (opening) ensures fixation. The second angle slot (21) is 80 degrees to the door. It ensures that it stops at the middle opening level. The third angle slot (22) is 70°. This is the position where the door opens relatively little but is fixed in place. After the door passes the 15° and 45° stops of the spring setscrew (3) mechanism, When opened further, the stepped arm (1) and the upper transmission plate (4) and the lower transmission plate attached to it The sheet metal (5) continues to rotate. The angle pin is in the predetermined positions. Adjustable. The user can select the angle of the pin from the slots located there. It is mechanically connected by passing it through so that it does not move axially, but 25 It now also prevents angular rotation movement. In this case, the door is now fixed; 70°, It is mechanically locked at whichever angle it corresponds to, either 80° or 90°. It is possible. If the user wishes to change the angle at which the door is fixed, they can unscrew the pin and adjust it to 30°. removes it from its socket and then places it back into its socket according to the desired angle. It connects mechanically. This system operates entirely manually. The door can be fixed at specific angles in the direction it opens, or the user can close the door. When desired, the system must seamlessly support this action. Therefore, the entire kinematic chain is designed to operate in both directions. The door rotates around its hinge axis, moving in the direction of closing. 5 This movement is received by the stepped lever (1) and the upper transmission plate (4) and lower transmission plate respectively. It is transmitted through the transmission plate (5) along the kinematic chain. If the gate is 70°, 80° or If fixed by the angle pin (9) at 90° positions: There are no problems with the door closing mechanism; it is secured with 10. from that perspective, it begins to move in the opposite direction, and other mechanisms... It will not hinder his work. As the door passes the 45° and 15° angles, the stepping on the stepping handle (1) The pin makes contact again with the spring-loaded setscrew (3). This time the stepping pin moves forward 15 Because it moves in the opposite direction, not the other way around, it contacts the ball at the opposite angle. Grading As the pin returns, it compresses the spring again by pressing down on the ball in the same way. The ball, The spring exits the socket, allowing the pin to pass through. Once the pin has passed, the spring returns. It opens and the ball settles back into its slot, ready for the next pass. The stepping pin, after passing the 45° and 15° positions, finally opens the door completely. It comes to the closing (0°) position. At this point neither the opening pin (9) nor the setscrew (3) is active. It does not function as such. The stepped arm (1) returns to its starting position. The system is now ready for the next power-on attempt. 30

Claims

11 REQUESTS 1- To ensure the door is positioned at specific fixed angles, for defense purposes. to be integrated into unarmored tactical wheeled vehicles used in industry a door tensioning mechanism (27) has been developed, and the mechanism in question is; 5 - between the cabin mounting bracket (28) and the door profile (29), and the door seal (26) to a body sheet (2) which is positioned so that it will not come into contact with - mounted on the body sheet (2), receiving and transmitting the door movement stepped arm (1), - with the stepped arm (1), the rotating upper transmission plate (4) and lower transmission plate (5), 10 - three between the upper transmission plate (4), lower transmission plate (5) and body plate (2) respectively providing degrees of freedom; a long pin (8), a short pin (6) and a middle pin pime (7), - ensure the pins are properly seated and can rotate freely. to the zodiac signs, 15 - a moon segment (15) and an outer segment that provide axial fixation of the pins (14), - enables the door to automatically stop at angles between 15° and 45°. a spring set screw containing a spring and ball mechanism (3), - 4 stepping pins (30) fixed on the stepping arm (1), 20 - allows the door to be positioned at fixed angles such as 70°, 80° and 90° angle pin (9), - a first angle slot (20) opened on the body sheet (2), a second angle slot (21) and a third angle socket (22), - A body adjustment 25 that ensures the system is aligned with the cabin and door sides. to the sheet metal (12) and to a door adjustment sheet metal (13), - nuts used to prevent loosening at connection points and the supply of spare parts added to the system to create the wear and tear itself standard washers which are easier and less expensive compared to other parts It is characterized by having a door tensioning mechanism (27). 30 2- The invention is a door tensioning mechanism (27) according to claim 1, and its feature is; The movement taken from the stepping pin (30) is transmitted to the spring setscrew (3) By compressing the ball inside along the arc, a clicky pause occurs. This structure allows the door to be opened 15° without external interference. 12 and having a door tensioning mechanism (27) that can be stopped at 45° angles It is the characterization of the situation. 3- The invention is a door tensioning mechanism (27) according to claim 1, the feature of which is; door When opened further, the lower transmission plate (5) is fixed to the body the first angle slot (20), the second angle slot (21) and the third angle slot (2) on the sheet metal (2) By sitting in one of its slots (22), it mechanically rotates at fixed angles such as 70°, 80° and 90°. It has an angle pin (9) which enables the door to be fixed. It is the characterization of the situation. 4- The invention is a door tensioning mechanism (27) according to claim 1, and its feature is; assembly compensating for surface tolerances, ensuring the kinematic axes of the mechanism are accurate. a body adjustment plate (12) and a door adjustment plate (13) that ensure alignment It is characterized by having certain qualities. 5- The invention is a door tensioning mechanism (27) according to claim 1, and its feature is; stepped all connections on the arm (1), upper transmission plate (4) and lower transmission plate (5) Secured with anti-rotation nuts and motion transmission plates 15 washers that accumulate wear between the bushings It is characterized by having a structure in which it is used. 6- The invention is a door tensioning mechanism (27) according to claim 1, and its feature is; spring-loaded When the setscrew (3) moves in the direction of closing the door, it is stepped. 20 allows the pin (30) to make contact with the ball in the opposite direction. a structure that allows two-way passage in a way that will enable recognition It is characterized by having certain qualities. 30

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