RU2803035C1 - Retractable mechanism for tilt-and-turn flap of window or door and method of its movement by meaning of retractable mechanism - Google Patents

Abstract

FIELD: mechanisms.

SUBSTANCE: sliding mechanism and a method for opening and closing a window or door. The retractable mechanism for the tilt-and-turn sash of a window or door contains a locking mechanism and a base part fixed on the frame, on which a means of transmitting force is installed, having a connecting element with a flap, moreover, the connecting element is a connecting element of a drive rod, so that the locking mechanism has a drive rod element with gate or locking pins located on it, moreover, the connecting element of the drive rod is located at the free end of the force transmission means and consists of a gripper located on the force transmission means and of a hook, so that the locking pin located on the connecting element abuts against the inner edge on the hook for automatically disconnecting the connecting element of the drive rod, while being in a closed position, the force transmission means and the locking mechanism of the flap, which is in the locking position, are movable by means of mechanical adjustment to the position of readiness for rotation, moreover, the locking pin adjacent to the inner edge of the folded open hook is located in the recess of the grip and is made with the possibility by means of the force transmission means mechanical transition to the rotary position of the flap and as mechanical retraction in the direction of the closed position of the force transmission means and in the direction of the blocking position of the flap, the release of the locking pin and the turn-open position of the sash is ensured, moreover, the hook has an additional inner edge, to which the locking pin in a supporting manner adjoins in the locked position of the connecting element of the drive rod and provides a mechanical retraction from the open folding position of the leaf to the folding position of the locking pin and further in the direction of the means of transmission of force in the closed position and in the direction of the locking pin of the locking mechanism of the locking pin in the locked position of the leaf, while the hook is open when in the gripping recess of the locking pin, when the force transfer means is applied from the closed position to the tilted position of the flap, before reaching the tilted position of the flap, it abuts against a guide element located on the flap and is connected to the locking pin during automatic closing, so that the base part has an arcuate segment of the guide, moreover, located in in the tilted position, the locking trunnion and the connecting element of the drive rod, adjacent to the guide element, following the force transmission means, provides a rotation of 90° and mechanical action to move the flap to the open folding position, and the technical result is achieved by moving the tilt-and-turn flap of a window or door by means of such a retractable mechanism.

EFFECT: simple, fast, reliable and accurate mounting.

14 cl, 13 dwg

Description

The group of inventions relates to a retractable mechanism and a method for opening and closing, as well as for rotating and/or tilting and locking the closed state of a locking mechanism, at least for partially closing an opening, a rotary and/or tilting window or door.

Such devices can be used to open and/or close windows, doors or as ventilation sashes, especially if they are installed in hard-to-reach places, for example, in roof windows, etc. To ensure a tight closure, especially when subject to wind loads, the window or door usually has a locking mechanism that can be used to secure it closed. A separate drive device may be provided to operate the locking mechanism.

A device with a locking mechanism of this type is already known from application EP 2146032 B1. For opening and/or closing and for fixing the closed state of the locking device, at least for partially closing an opening, for example a window or door, the known device has a drive and a force transmission means transmitting the drive force to the locking device, and connected to the locking mechanism of the locking device. devices.

A disadvantage of the known device is the need for a large installation space, which is only possible from the outside, visible on the window or door, due to the dimensions of the drive, but in particular due to the device for changing direction, separately located in the housing, which, in addition to the guide chain, also has a separate control slot built above the chain guide at body height, with a control cam angled away from the chain guide. In the case of implementing a tilt-and-turn window or door using the present device, in addition to increasing the stroke, lengthening of the body and the device for changing direction is required, which also adversely affects the size and cost of the known device. In addition, from the prior art described above, there is no known device for a swing-and-turn sash or flap of a window or door with a hybrid drive, which allows the transition from automatic opening and closing to manual control, with at least the same functions of automatic switching of operating positions using manual switching.

EP 3221165 A1 describes a retractable mechanism for a tilt-and-turn sash of a window or door, designed to be mechanically moved by means of a drive device into a rotating position followed by manual operation or a tilting position with automatic opening and closing or detachment and connection of a drive rod element. To this end, when the shear is in the closed position and the locking mechanism is in the locking position, the drive rod connecting member can be automatically separated from the drive rod locking trunnion as a drive rod member during mechanical movement in the direction of the rotary position by resting on the inner edge of the hook. When the hook opens, the scissors are mechanically driven to the closed position, thereby releasing the pivoting position of the trunnion. According to this embodiment, the trunnion of the locking mechanism is located in the free working area in a rotary operating position, so that the sash, having been disconnected from the drive device, can be manually moved to the open rotary position. When the shear is moved again from the closed position with the hook open towards the trunnion in the swivel position, and when the trunnion enters the recess of the bracket in the swivel position, the connection of the hook to the trunnion is automatically initiated by releasing the spring element from the permanently stressed position using the spring clamping device , located on the base part, and transition to a stressed position by means of a hook, which provides a connection by entering a spring-loaded hook. When mechanically moving from the rotating position of the scissors located in the direction of the closed position and located in the direction of the locking position of the locking mechanism of the trunnion, the trunnion is held in contact with the inner edge of the hook, and the spring element releases the hook and moves into a permanently tensioned position using the spring clamping device.

The basis of the invention is to provide a device and method for a tilt-and-turn, tilt-and-turn sash or swing sash window or door of the above-mentioned type, which will provide mechanical tilting into the tilting position for opening the opening and/or mechanical movement into the turning position for manual rotation into the open turning position position, will be technologically simple and economical and will also make possible simple, fast, reliable and accurate installation and adjustment and will not contain the above-mentioned disadvantages in terms of the size of the structure.

The problem can be solved by means described in the claims.

In the present embodiment, a device for opening and/or closing, as well as for blocking the closed state of the locking mechanism, for at least partial closing of the opening of the room of a turning and/or tilting window or door with a sash and frame, includes a retractable mechanism with a driving device and a force transmitting means transmitting a driving force to the locking mechanism, which can be connected to the locking mechanism by at least one locking pin of the locking mechanism.

The drive may have an electric motor or other mechanized drive. Alternatively, the drive can be manual. The possibility of a manual alternative, for example using a crank handle, should further the purpose of emergency release.

Preferably, the force transmission means transmits both tensile and pushing forces. For this purpose, the force transmission means is formed, at least in certain areas, by a chain that is resistant to deflection.

The locking mechanism has a drive rod with closing or locking pins located on it and is located on the window or door sash. In the closed state of the locking mechanism, the locking pins engage in interlocking engagement with correspondingly shaped locking portions of the window or door secured to the frame and thereby form a closed or locked state of the window or door.

To ensure reliable adjustment of the retractable mechanism, which ensures rotation, tilting and reliable locking of the tilt-and-turn sash of a window or door, a locking mechanism and a base part fixed to the frame are located on the sash. In the base part, the driving mechanized device is connected to a driven force transmission means, which has a connecting element with the sash. The connecting element related to the retractable mechanism connects and disconnects the locking mechanism and forms a connecting element of the drive rod. Thus, the frame-mounted motorized sliding mechanism automatically locks and unlocks the locking mechanism on the sash by connecting and disconnecting the drive rod connecting element located at the free end of the force transmission means. For this purpose, the connecting element of the drive rod consists of a gripper and a hook, which are connected to each other in a rotatable manner. When the force transmission means is in the closed position and is in the locking position of the shutter locking mechanism to the frame of the locking pin, including the connecting element of the drive rod, the locking pin is axially fixed using the grip and the hook of the connecting element of the drive rod. During mechanical movement in the direction of the rotary position, the locking pin is preferably automatically abutted against the inner edge of the hook, wherein the hook is automatically rotated towards the gripper and unlocks the one-way open position in the longitudinal direction of the locking mechanism for the locking pin. When the force transmission means is subsequently activated with the open hook folded back, the locking trunnion, located with the locking mechanism and located in the gripping recess, mechanically assumes the rotary position of the sash. When mechanically retracted in the direction of the closed position, the connecting element of the drive rod releases the locking pin and ensures the swing-open position of the sash. The movement of the sash from the rotary position to the rotary-open position, and vice versa, can be controlled manually. When the sash is in contact with the frame and the force transmitting means is again released from the closed position, the hook automatically opens and the locking pin enters the catch recess in the direction of the tilting position, the hook, before reaching the tilting position, rests against a guide element located on the sash, in As a result, the automated connection of the hook with the locking pin is activated. Fixed circumferentially by the grip and hook of the drive rod connecting element, the locking trunnion in the folding position with the adjacent drive rod connecting element on the guide element is driven by a force transmission means and follows the guide by means of an arched segment at the base, rotating through almost 90° and following flap to the open tilt position. When mechanically retracted from the folding position towards the closed position of the force transmission means and being in the locking position of the sash locking mechanism to the frame of the locking pin including the drive rod connecting element, the locking pin, preferably adjacent to the inner edge of the hook in the locked position of the drive rod connecting element, is held along with a circumferential grip. Preferably, the grip and hook of the force transmission means facing the locking mechanism are connected directly to the locking pin and are automatically driven from the direction of movement of the locking mechanism, from the locked closed position of the sash to the frame, when the sash is against the frame, to the pivoting or tilting position , and are further redirected from the tilting position by the direction changing device to a second direction of movement for actuating the means for transmitting force into the open tilting position of the sash to the frame.

To provide concealed positioning of the retractable mechanism in the rebate space between the frame and the sash of the window or door, the grip and hook follow the arcuate segment of the force transfer means as the force transfer means is retracted into the retractable mechanism body. When a guide element, preferably a chain link, located at the end of the chain of the force transmitting means, pivotally connected to the gripper, enters the arcuate segment, the drive rotates together with the hook through an angle of almost 90° around the axis of the locking pin located on the gripper and hook, and when By retracting the guide element, the gripper activates the locking mechanism, followed by engagement of the locking pin.

The force transmission means, made in the form of a chain, is pulled out from the housing with a grip and a hook of the connecting element of the drive rod when the sash is in the mechanically open folding position, and is translated in the free section of the segment with an offset of 90° to the direction of movement of the locking mechanism, and the connecting element of the drive rod is held in a position transverse to the direction of extension of the sash in a guide element located on the sash or locking mechanism while maintaining positioning, and can be moved from the folding position by entering the position of the sash against the frame into the folding position passing through an arcuate segment in the body in a linear movement , parallel to the direction of movement of the locking mechanism. To avoid deflection of the one-way flexible chain, in particular during mechanical opening and closing in the folding position, and to achieve an inexpensive and compact design, the chain is preferably divided into two sections. The first section has a gripper and a hook at the first free end and is made in the form of deflection-resistant chain links that transmit pressure and tensile forces. The second free end, which terminates in the housing guide and forms the second section, is formed by standard chain links by eliminating the intermediate plates to provide one-way flexibility. The flat arrangement of the chain in the second section with the standard chain links provided facilitates the concealed installation of the chain and thus at least facilitates the concealed placement of the sliding mechanism in the window or door.

In order to establish a connection between the force transmission means in the form of a chain and the gripper in a simple and economical manner, the guide element is hingedly connected to the free end of the force transmission means, which forms a fixed connection with the gripper, for example, a rivet connection. When connecting the guide element to the gripper by force closure and connecting at the free end of a one-sided flexible chain link, the guide element with the arrangement of sliding means, in this embodiment with sliding rollers, forms a guide support in the guide base part of the retractable mechanism. Movable control of the gripper, and sometimes rotating control, is achieved by moving the chain in connection with a guide element in a guide in the housing. Preferably, the guide element is adapted in shape to the chain link, the sliding rollers being located on corresponding spaced bolt links that are aligned with the groove-forming guide chain.

The hidden location of the retractable mechanism in the rebate space of the window or door is also facilitated by a grip and hook made of strip metal, cast iron or plastic, which are movable and can be moved together outside the body. The flat design of the gripper and hook, even when moving in the free space of the flat side, ensures an exit beyond the body between the body and the opposite sash.

Reliable fixation during movement of the sash to the frame from the adjacent folding position of the sash by the frame to the open folding position of the sash and return to the adjacent folding position of the sash by the frame is ensured by a means of transmitting the force of the retractable mechanism due to the fact that the grip and hook have a protrusion, which, ensuring geometric closure in the recess of the guide element, fix the connecting element of the drive rod and the locking pin in the locked position, preventing displacement in the longitudinal direction of movement of the locking mechanism and unintentionally opening the connecting element of the drive rod.

Another preferred embodiment is due to the fact that the gripper and the hook are connected to each other so that rotation is not possible due to friction, the open recess of the gripper is U-shaped and is located in the longitudinal direction in the direction of movement of the guide guide element. The rotation of the gripper relative to the hook can be prevented by adjusting the rivet connection or by adding another structural element, such as a washer, due to the properties of the material, such as rubber or plastic, and/or shape, such as a corrugated washer. In addition, the recess has a chamfer or radius on corresponding side edges towards the hole. In this way, possible tolerances for the smooth entry of the locking pin into the grip can be compensated for easily and inexpensively.

To ensure secure fixation as the sliding mechanism passes through the tilt-and-turn position from the locked closed position of the sash to the frame of the window or door and back again, the hook grips the locking pin through the corresponding inner edges together with the gripping recess, the inner edge and the recess forming an automatic clamp in the direction of the sash locking closing for the locking pin. In this case, the hook, as a locking element, blocks the opening of the recess by means of a rotary mechanism and holds the locking pin in a protected movable position of the drive device.

Another advantage is the position of the inner edge of the hook, which, due to its contour relative to the locking pin, serves as a trigger for the automatic rotary opening of the hook and releases the U-shaped recess when the inner edge contacts the locking pin. Accordingly, the opening occurs under the action of the impulse of the actuator as soon as the retractable mechanism moves the locking mechanism from the locked closed position towards the rotating or tilting position. To do this, the inner edge of the hook has a contour that forms a guide around the axis of rotation of the hook at an acute angle, which creates a force component in the direction of opening the sash and eliminates the clamping of the connecting element of the drive rod by deepening the grip and the inner edge of the hook, releasing the locking pin.

In addition, the sash can be moved from the locked closed position of the locking mechanism at the frame, after passing through the force transmission means and forcefully engaging the locking mechanism with the locking pin connected, towards the tilting position, with the hook in the swing-open position and the locking pin in the free position in deepening, due to the mechanical control of the force transmission means up to the folding position towards the guide element. As the force transmission means moves, the hook runs onto the guide element, overcoming the wedge-shaped protrusion running from the free end of the guide element in the direction of the central axis to the recess, and gradually automatically closes the hook in the open position by pressing the outer contour.

The guide element is preferably made symmetrical, for using the window or door sash on the right or left, with the protrusion being provided on both sides of the guide element. A guide element made from a plastic part proves to be simple and economical to manufacture. In addition, this makes it possible to obtain an easily installed, maintenance-free sliding mechanism with good sliding properties.

Due to the location, number and small size of the structural elements of the retractable mechanism, the housing can be made with an L-shaped cross-section along almost the entire length. In this case, the flat part of the cross-section of the body predominates. Thus, using the subject of the invention, a hidden arrangement of the sliding mechanism in the rebate space of a window or door can be realized.

Thus, the sash is moved by a sliding mechanism from the frame first to open from a locked closed position at the frame to a pivoting position for manual opening to a pivoting position or to a tilting position for mechanical opening to a tilting position. For this purpose, the retractable mechanism is connected to a locking mechanism mounted on the sash and has a base part mounted on a frame on which a force transmission means is mounted, driven by a mechanical drive device that has a connecting element with the sash. The connecting element is a drive rod connecting element that locks and unlocks the sash locking mechanism at the frame using a mechanical drive device. The drive rod connecting element is located at the free end of the force transmission means and consists of a grip located on the force transmission means and a hook that can be connected to a locking pin located on the locking mechanism, resulting in the following actions:

- transferring the sash to a rotating position by mechanically moving the connecting element of the drive rod using a means of transmitting force from the locked closed position of the locking mechanism with automatic opening of the hook to the rotary position of the locking mechanism and unlocking the locking pin by retracting the open connecting element of the drive rod to the closed position of the locking mechanism;

- manual rotation of the sash from the frame to the rotary-open position;

- manual rotation of the sash from the rotary-open position to the rotary position adjacent to the frame;

- closing the sash by mechanically moving the connecting element of the drive rod using a means of transmitting force with an open hook from the locked closed position beyond the swing position in the direction of the tilting position and grasping the locking pin by means of a gripper with automatic closure of the hook by passing through a guide element located on the sash or on the locking mechanism;

- mechanical movement of the connecting element of the drive rod using a force transmission means with a change in direction to the locked closed position of the locking mechanism or with maintaining the direction and further movement of the connecting element of the drive rod using the force transmission means with the closed connecting element of the drive rod into the folding position

- mechanical tilting of the sash using a means of transmitting force from the frame to the tilted position of opening the opening, to the position of the connecting element of the drive rod, protected from opening by inserting the grip and hook into the recess of the guide element;

- mechanical movement of the connecting element of the drive rod by means of a force transmission means with a change in direction from the locked folded position to the adjacent folded position up to the closed position of the sash at the frame and reaching the locked position of the locking mechanism while maintaining the connection of the connecting element of the drive rod with the locking pin.

The method according to the invention for opening and closing a swing and a folding sash, during manual and mechanical movement of a window or door sash, is carried out by means of a retractable mechanism, a locking mechanism located on the sash and a base part fixed to the frame, on which a transmission means driven by a mechanical drive device is mounted force having a connecting element with the sash, wherein the connecting element is a connecting element of the drive rod, and the locking mechanism is locked and unlocked by means of a mechanical drive device, and the connecting element of the drive rod is located at the free end of the force transmission means and consists of located on the force transmission means gripper and hook, which is connected to a locking pin located on the locking mechanism, so that the sash, as a result of the mechanical activation of the retractable mechanism and the action on the locking mechanism located on the sash, is moved from the closed position to the open folding position of the sash, so that the sash, as a result of the mechanical activation of the retractable mechanism and the effect on the locking mechanism located on the sash can be moved from a locked closed position to a rotary position for manual translation into a rotary open position of the sash, so that the sash, as a result of the mechanical activation of the retractable mechanism, can be moved from the tilted opening position of the opening or, while in the rotary position, to the locked closed position.

To avoid unwanted vibrations that can lead to damage and excessive noise, the motor and auger, which forms the transmission to the gearbox, are housed in a separate vibration-absorbing housing. Likewise, vibration damping components with motor and auger can be integrated directly with the gearbox and control unit in the housing.

Preferably, the device includes a permanent connection in the housing, for example using a threaded pin, or a positive connection, for example in the form of a spring element, which, as an emergency release device, moves the motor from the gearbox to the disengaged position in order to interrupt the power connection between the motor and a gearbox.

Additional advantages of the development are visible in the drawings:

Fig. 1 is a perspective view of the retractable mechanism in the mounted position in the sash and frame and the folding position of the sash mechanically extended to open the opening to the frame of the window or door,

Fig. 2 - retractable mechanism according to FIG. 1 in perspective view of the base part and the mechanically extended tilting position of the sash, without window or door frame,

Fig. 3 - retractable mechanism 1 in axonometry and in the mechanically retracted closed position of the sash without a window or door frame,

Fig. 4 - section of the retractable mechanism according to FIG. 3 without the sash and frame of the window or door, with a view of the connecting element of the drive rod in the closed position and with the locking mechanism of the sash of the locking pin in the locking position, having the element of the drive rod,

Fig. 5 - section of the retractable mechanism according to FIG. 4, top view,

Fig. 6 is a top view of the section of the retractable mechanism after mechanical movement in the direction of the rotary position and the locking pin resting on the inner edge of the hook in the automatically folded open position of the hook,

Fig. 7 is a top view of the section of the retractable mechanism after mechanical movement of the locking pin in the rotating position in engagement of the gripper and the open folded hook,

Fig. 8 is a top view of a section of the retractable mechanism after mechanical movement, with the locking pin in a rotating position according to FIG. 7 and the mechanically retracted closed position of the open folded hook and the release of the locking pin for the rotated swing-open position of the sash,

Fig. 9 - top view of the section of the retractable mechanism after mechanical movement and with the transfer of the force transmission means from the closed position with the hook open and with the engagement of the locking pin in the grip recess into the folded position, and the hook, before entering the folded position, automatically initiates connection with the locking pin by means of a stop hook into the guide element located on the sash,

Fig. 10 is a top view of the section of the retractable mechanism after further mechanical movement of the force transmission means in FIG. 9 in the clamped position of the gripper and hook to the locking pin, and with the locking pin in the folded position, the connecting element of the drive rod adjacent to the guide element follows the means of transmitting force along the guide through an arcuate segment in the base part, rotates almost 90° and initiates the sash readiness position for tilting,

Fig. 11 is a top view of the section of the retractable mechanism after further mechanical movement of the force transmission means in FIG. 10 in the clamped position of the gripper and hook to the locking pin, and with the locking pin in the folded position, the connecting element of the drive rod adjacent to the guide element mechanically acts on the force transmission means and moves the sash to the open folding position,

Fig. 12 is a top view of the section of the retractable mechanism after further mechanical movement of the force transmission means in FIG. 11 in the clamped position of the gripper and hook to the locking pin, and the connecting element of the drive rod adjacent to the guide element, subjected to mechanical action from the force transmission means, moves the sash to the open folding position,

Fig. 13 is a cross-sectional top view of the retractable mechanism during mechanical movement from the folding position according to FIG. 11 with the force transmission means located in the direction of the closed position and with the locking trunnion locking mechanism located in the direction of the locked position of the flap, with an inner edge provided on the hook for blocking the opening of the grip and with the locking trunnion position adjacent to the inner edge in the locked position of the connecting element of the drive rod.

In fig. 1 shows an upper section of the sash 4 and frame 5 of a window or door 3 with a retractable mechanism according to the invention, and in general with the number 1 in FIG. 1-13 by a retractable mechanism in the mechanically open folding position of the swing-and-turn sash shown in this example of a window or door 3 and a locking mechanism 2 located on the sash 4. A base part 6 is installed on the frame 5, hidden in a not shown recess intended for it. In this case, the retractable mechanism 1 is preferably located between the sash 4 and the frame 5 on the upper horizontal crossbar 31. In this case, the sash 4 and the frame 5 are located opposite each other relative to the horizontal and vertical crossbars with rebated surfaces and have locking elements on the locking mechanism 2 that support each other, one of which - not shown - is mounted on the frame 5, and the other on the sash 4. By means of mechanical and also possible manual control, the locking elements of the locking mechanism 2 are movable relative to each other and can be brought into engagement with each other in a locked position and the locked closed position of the sash 4 to the frame 5.

For simplicity, Figures 1-13 and the description describe a window or door 3 that can be mechanically actuated by a sliding mechanism 1 to provide a tilting position for opening the opening and mechanically moving the sliding mechanism 1 to a pivot position for manual rotation to an open pivot position. sashes 4 to frame 5.

Manual actuation by means of a not shown handle for the locking mechanism 2, which, like the mechanical adjustment, also allows the locking mechanism 2 and the sliding mechanism 1 to be connected and disconnected, can be used for possible emergency release.

As can be seen in FIG. 1-4, the locking mechanism 2 has a drive rod 14 with closing or locking pins 15 located on it and is located on the sash 4 of the window or door 3. The locking pins 15 in the closed state of the locking mechanism 2 engage in locking engagement with the closing parts of the window corresponding in shape or doors 3 - not shown - fixed to the frame 5, and thus form a closed state of the window or door 3.

To adjust the retractable mechanism 1 in accordance with Fig. 1-4, providing manual rotary opening after mechanical movement of the locking mechanism 2 to the rotary position and mechanical release from the sliding mechanism 11 in accordance with FIG. 8, as well as providing mechanical tilting after mechanical movement of the locking mechanism 2 to the folding position according to FIG. 11 and further mechanical extension into the open folding position of the sash 4 according to FIG. 12 by means of a retractable mechanism 1, and facilitating reliable locking of the swing-out sash 4 of the window or door 3 according to FIG. 5 on the sash 4 there is a locking mechanism 2 and a base part 6 mounted on the frame 5. For this purpose, in the base part 6 according to FIG. 3 there is a mechanical drive device 7 connected to the driven force transmission means 8 shown in FIG. 1 and fig. 2, which has a connecting element 9 with the flap 4. The connecting element 9 belonging to the retractable mechanism 1 connects and disconnects the locking mechanism 2 and forms a connecting element of the drive rod 10. Thus, mounted on the frame 5 of FIG. 1, the power retractable mechanism 1 automatically locks and unlocks the locking mechanism 2 on the sash 4 by connecting and disconnecting the connecting element of the drive rod 10 located at the free end 11 of the force transmission means 8. For this purpose, the connecting element of the drive rod 10 according to FIG. 5-13 consists of a gripper 12 and a hook 13, which are rotatably connected to each other.

With the force transmitting means 8 in the closed position and the locking mechanism 2 of the flap 4 in the locking position to the frame 5 of the locking pin 15, including an element of the drive rod 14, according to figures 3 - 5, at least one locking pin 15 using the gripper 12 and hook 13 of the connecting element of the drive rod 10 according to FIG. 5 is fixed along the axes. Preferably, the locking pin 15 is a so-called mushroom pin, which further protects the connecting element of the drive rod 10 in the axial direction from undesired loosening.

During the initial mechanical movement of the locking mechanism 2 by the sliding mechanism 1 from the locking position of the locking mechanism 2 of the flap 4 to the frame 5 in the direction of the rotating position in FIG. 6, the locking pin 15 preferably automatically abuts the inner edge 16 of the hook 13, wherein the hook 13 rotates towards the gripper 12 and releases the one-sided open position by opening the recess 17 of the gripper 12 in the longitudinal and offset direction according to the arrow 32 of the locking mechanism 2 for the locking pin 15.

With subsequent mechanical movement of the force transmission means 8 with the open hook 13 folded down, the locking pin 15, located with the locking mechanism 2 and located in the recess 17 of the grip 12, according to FIG. 7 takes the swing position of the sash. When mechanically retracted in the direction of the closed position according to FIG. 8, the connecting element of the drive rod 10 releases the locking pin 15 and ensures the swing-open position of the sash 4. In this case, the connecting element of the drive rod 10 with the gripper 12 and the hook 13 is in the open state.

When the locking mechanism 2 is in the rotating position of the locking pin 15 and in a mechanically disconnected state from the sliding mechanism 1, the sash 4 can be manually moved from the frame 5 to the rotary opening position and vice versa.

In the adjacent position of the flap 3 and the repeated mechanical movement of the force transmission means 8 from the closed position, with the hook 13 automatically open and the locking pin 15 entering the recess 17 of the grip 12 in the direction of the folding position in FIG. 8, hook 13, until the folding position according to FIG. 7, rests against the guide element 18 located on the sash 4, as a result of which, due to the fit of the outer contour of the hook 13 to the guide element 18, the continuity of the automated connection of the hook 13 with the locking pin 15 is ensured. Fixed around the circumference by the grip 12 and the hook 13 of the connecting element of the drive rod 10 according to FIG. 8, the locking pin 15 in the folding position with the adjacent connecting element of the drive rod 10 on the guide element 18 is driven by the force transmission means 8 and follows the guide 20 by means of an arched segment 19 in the base part 6, which rotates almost 90° and follows the sash 4 as you move away from the frame 5 into the open folding position according to FIG. eleven.

During mechanical retraction from the open folding position of the flap 4 in FIG. 12 into the folding position according to FIG. 11, with the flap 4 adjacent to the frame 5 in the direction of the force transmission means 8 in the closed position and in the direction of the locking mechanism 2 of the locking pin 15 in FIG. 5, the locking pin 15 is held in a circumferential position adjacent to the inner edge 21 of the hook 13 in the locked position of the connecting element of the drive rod 10 together with the gripper 12 (see Fig. 13). Thus, the inner edge 21 closes the hole of the recess 17 of the gripper 12. Due to the shaping contour of the inner edge 21 and the rotation lock formed between the gripper 12 and the hook 13, the connecting element of the drive rod 10 remains closed within the required adjustment stroke of the retractable mechanism 1 using the locking mechanism 2.

As can be seen from Fig. 5-13, the grip 12 and the hook 13 of the force transmitting means 8 facing the locking mechanism 2 are connected directly to the locking pin 15 and are automatically driven by a drive from the direction of movement of the locking mechanism 2, starting from the locked closed position of the sash 4 to the frame 5, when the sash 4 is adjacent to the frame 5 in Fig. 5, into a swivel or folding position according to FIG. 7, or in the folding position according to FIG. 8, and are further redirected from the folding position by the direction changing device to the second direction of movement for actuating the force transmitting means 8 in FIG. 11 to the open folding position according to FIG. 12 sashes 4 to frame 5.

To ensure hidden positioning in the rebated space between the frame 5 and the sash 4 of the window or door 3 of the retractable mechanism 1 according to FIG. 1, the grip 12 and the hook 13, located one above the other, follow, as the force transmission means 8 is retracted into the housing 22 of the retractable mechanism 1, along the arcuate segment 19 of the guide 20 for the force transmission means 8. On the last link of the chain at the free end of the transmission means efforts 8 in Fig. 5-13, on the grip 12 of the connecting element of the drive rod 10 there is a guide element 23, which follows the arcuate segment 19 according to FIG. 10, and the grip 12, together with the hook 13, rotates at an angle of almost 90° around the axis 24 of the locking pin 15, located in the grip 12 and hook 13. With further retraction of the guide element 23 into the body 22 of the retractable mechanism 1, the grip 12 continues to engage with the lock pin 15, thereby activating the locking mechanism 2.

According to FIG. 12, a force transmission means 8 made in the form of a chain when the folding position of the sash 4 is mechanically open, extending with the grip 12 and the hook 13 of the connecting element of the drive rod 10 from the housing 22 of the base part 6, is transferred in the free area with an offset of 90° to the direction of movement of the locking mechanism 2. In the extended folding position according to Fig. 12, the retractable mechanism 1 is in the extended end position of the driving mechanism of the force transmission means 8. When the retractable mechanism 1 moves from the folding position to the open folding position or vice versa according to FIG. 11 and fig. 12, the connecting element of the drive rod 10 is held positionally aligned transversely to the direction of extension of the flap 4 or in the direction of the arrow 31 in the guide element 18 located on the flap 4 or the locking mechanism 2. After mechanical translation into the folding position according to FIG. 9, the connecting element of the drive rod 10 can move parallel along the guide 20 linearly to the movement of the locking mechanism 2 of the window or door 3, hidden hidden between the housing 22 and the locking mechanism 2, to the locked closed position according to FIG. 5. The stroke of the locking mechanism 2 of the window or door 3 determines the trajectory of the mechanical adjustment of the retractable mechanism 1 from the locked closed position in FIG. 5 to the folding position according to FIG. 9. After the mechanically reached folding position of the sliding mechanism 1 and the folding position of the locking mechanism 2, which also represents the end of the stroke of the locking mechanism 2 and thus the locking pin 15, there follows a mechanical movement of the sliding mechanism 1 by means of the chain force transmitting means 8 in the direction open tilt position without further adjustment of the locking pin 15.

The one-sidedly rigid chain of the force transmission means is divided into two sections for mechanical opening and closing from the folding position to the open folding position of the flap 4 to the frame 5. The first section, at its first free end 11 of the connecting element of the drive rod 10, is formed by deflection-resistant chain links transmitting tensile forces. and pressure forces. The second free end 33, which terminates in the guide 20 of the housing 22 and forms the second section, is formed by standard chain links by eliminating the intermediate plates to provide one-way flexibility. The flat arrangement of the chain in the second section with the standard chain links provided facilitates the concealed installation of the chain and thus at least facilitates the concealed placement of the sliding mechanism 1 in the window or door 3 (see FIG. 5).

The guide element 23 forms, for example, in FIG. 5, a fixed connection with a gripper 12, for example a rivet connection. When connecting the guide element 23 to the gripper 12 by force closure and connecting one-sidedly flexible links of the chain 8 at the free end 11, the guide element 23 with the arrangement of the sliding means, in this example with sliding rollers, forms a guide support in the guide 20. Movable control of the gripper 12, is achieved by moving the chain 8 in connection with the guide element 23 in the guide 20 in the housing 22 of the retractable mechanism 1. As can also be seen from FIG. 5, the guide member 23 is shaped to fit the chain link, with sliding rollers located on corresponding spaced bolt links that are aligned with the groove-forming chain guide 20.

According to FIG. 4, the grip 12 and the hook 13 are made flat. To ensure a long service life and guarantee switching cycles, the grip 12 and hook 13 are made of metal, cast material or plastic. The flat sides of the grip 12 and hook 13 even allow movement in the free field of operation of the window or door 3, outside the housing 22 in the frame 5 and the opposite sash 4 with a locking mechanism 2 and provide impeccable protection of the material.

The grip 12 and the hook 13 have protrusions 25, 26 at their respective free ends, which protrude towards the guide element 18. The protrusions 25, 26 in the clamping position of the connecting element of the drive rod 10 with the locking mechanism 15 are located in exact correspondence with each other due to the recess 27 guide element 18. In the position of rotation by 90°, transverse to the direction of movement of the locking mechanism 2, and the closing engagement of the connecting element of the drive rod 10 with the locking pin 15, the projections 25, 26 according to FIG. 11 are in positive connection with the recess 27 of the guide element 18. Preventing unwanted movement of the retractable mechanism 1 during movement in the direction of the open folding position in FIG. 12 and vice versa is achieved by engaging the corresponding protrusions 25, 26 in the recess 27 of the guide element 18 with simultaneous engagement of the geometric and forceful closure of the guide pin 15 in the connecting element of the drive rod 10 and the locking mechanism 2. Due to the position of the grip 12 and the hook 13 for mechanical extension and retracting the sash 4 into the folding position to open the room according to FIG. 1, 2 and 12 or to the locked closed position of FIG. 5, stable and tension-provided maintenance of one-sided rigidity of the chain 8 during the exit of the chain 8 from the housing 22 in FIG. 11 is also achieved due to the projections 25, 26 located on the gripper 12 and hook 13, which constantly hold the force transmission means 8, in particular the chain, in a position of one-sided rigidity.

For functionally reliable control when opening and closing the connecting element of the drive rod 10, in particular when moving from the locked closed position according to FIG. 5 to the rotary position according to FIG. 7 and vice versa, the grip 12 and the hook 13 are connected to each other with the impossibility of rotation due to friction. Rotation of the gripper 12 relative to the hook 13 can be prevented by adjusting the rivet connection at the pivot point of the rotary axis 28 or by adding other structural elements, such as a washer, due to the properties of the material and/or shape.

To compensate for tolerances, the recess 17 of the gripper 12 has a chamfer or radius on the corresponding side edges 34, 35 of the one-sided U-shaped hole. Thus, the engagement of the locking pin 15 from the manually opened rotary position of the flap 3 in FIG. 8 in the direction of the positive engagement position with the connection of the gripper 12 with the locking pin 15 of FIG. 7 is functionally simplified.

When the retractable mechanism 1 moves from the locked closed position of the sash 4 to the frame 5 of the window or door 3 in FIG. 5 to the rotary position according to FIG. 7 or the folding position according to FIG. 9 and vice versa, the hook 13 engages the locking pin 15 through the corresponding inner edges 16, 21 together with the recess 17 of the gripper 12. The inner edge 21 and the recess 17 together form in the locking direction of the sash 4 in FIG. 13 is a clamp with automatic closure for the locking pin 15. In this case, the hook 13, as a locking element, blocks the opening of the recess 17 using a rotary mechanism and holds the locking pin 15 in a protected movable position of the drive device 7.

To ensure automatic release of the hook 13 for one-sided opening of the grip 12 of the connecting element of the drive rod 10 of FIG. 6 and thus, in order to enable the locking pin 15, disconnected from the sliding mechanism 1 and disconnected from the drive device 7, to freely extend into the free field of operation and manually rotate the sash 4, the inner edge 16 of the hook 13 has a contour that experiences pressure from locking pin 15, when the retractable mechanism 1 is mechanically actuated in the direction of the rotary or tilting position, and automatically releases the locking pin 15 on one side, turning along the axis of rotation 28 towards the gripper 12.

In addition, the flap 4 can be moved from the locked closed position of the locking mechanism 2 at the frame 5 in FIG. 5, after passing the force transmission means 8 and forcing the locking mechanism 2 with the connected locking pin 15, in the direction of the folding position, with the hook 13 in the rotary-open position and the locking pin 15 in the free position in the recess 17 of FIG. 6 and fig. 7, due to the mechanical control of the force transmission means 8 up to the folding position with the transition to the guide element 18 in FIG. 9. Hook 13 runs along FIG. 9 as a result of mechanical control on the guide element 18, overcoming the wedge-shaped protrusion 30 extending from the free end 29 of the guide element 18 to the recess 27, and gradually automatically closes the hook 13, which is in the open position, by pressing the outer contour.

To use a tilt-and-turn window or door 3 with right- or left-hand opening, the guide element 18 is made symmetrical, with the protrusion 30 on both sides of the guide element 18. At the same time, the corresponding protrusions 30 together with the recess 17 form an undercut for engaging the protrusions 25, 26 grip 12 and hook 13 for sufficient fixation against displacement of the connecting element of the drive rod 10 in FIG. 11 and fig. 12.

Following the trend of a window or door 3 with an ever-decreasing profile thickness of the sash 4 and frame 5 and to achieve a hidden arrangement of the sliding mechanism 1, the housing 22 of FIG. 2 and fig. 3 is made with an L-shaped cross section along almost the entire length.

In one method, the sash 4 is driven from the frame 5 by a sliding mechanism 1, first to open from a locked closed position to a rotating position to manually open the sash 4 on the frame 5 to a rotating position in FIG. 8 or into the folding position according to FIG. 11 to the open folding position for mechanical opening of the opening according to FIG. 1 and fig. 12. For this purpose, the retractable mechanism 1 is connected to a locking mechanism 2 mounted on the sash 4, and has a base part 6 mounted on a frame 5, on which a force transmission means 8 is installed, driven by a mechanical drive device 7, which has a connecting element 9 with shutter 4 (see Fig. 2). The connecting element 9 is in this case a connecting element of the drive rod 10, which locks and unlocks the locking mechanism 2 by means of a mechanical drive device 7. The connecting element of the drive rod 10 of FIG. 2 is located at the free end 11 of the force transmission means 8 and consists, as shown in FIG. 5 - 13 from the grip 12 located on the force transmission means 8, and the hook 13, which can be connected to the locking pin 15 located on the locking mechanism 2, as a result of which the following actions are performed:

- transferring the sash 4 to the rotary position by mechanically moving the connecting element of the drive rod 10 using the force transmission means 8 from the locked closed position according to FIG. 5 of the locking mechanism with automatic opening of the hook 13 according to FIG. 6 to the rotating position according to FIG. 7 of the locking mechanism 2 and unlocking the locking pin 15 by retracting the open connecting element of the drive rod 10 to the closed position according to FIG. 8; - manual rotation of the sash 4 from the frame 5 to a not shown rotary-open position; - manual rotation of the sash 4 from the rotary-open position to the rotary position adjacent to the frame 5 according to FIG. 8;

Closing the flap 4 by mechanically moving the connecting element of the drive rod 10 using the force transmitting means 8 with the open hook 13 from the locked closed position beyond the rotating position in the direction of the folding position in FIG. 9 and capturing the locking pin 15 by means of the grip 13 with automatic closing of the hook 13 by passing through the guide element 18 located on the sash 4 or on the locking mechanism 2;

- mechanical movement of the connecting element of the drive rod 10 using the force transmission means 8 with a change in direction to the locked closed position of the locking mechanism 2 according to FIG. 5 or with maintaining the direction and further moving the connecting element of the drive rod 10 using the force transmission means 8 when the connecting element of the drive rod 10 is closed to the folding position in FIG. eleven

- mechanical tilting of the sash 4 using a means of transmitting force 8 from the frame 5 to the open folding position of the sash 4 according to FIG. 1 and fig. 12, into the position of the connecting element of the drive rod 10, protected from opening by the engagement of the grip 12 and the hook 113 into the recess 27 of the guide element 16;

- mechanical movement of the connecting element of the drive rod 10 using the force transmission means 8 with a change in direction from the locked folding position according to FIG. 1 and fig. 12 into the adjacent folding position up to the closed position of the sash 4 at the frame 5 and reaching the locked position of the locking mechanism 2 while maintaining the connection of the connecting element of the drive rod 10 with the locking pin 15 of FIG. 5.

The method according to the invention for opening and closing a swing and tilt sash 4 of a window or door 3 according to FIG. 1 is carried out by means of a retractable mechanism 1 according to FIG. 2, with the locking mechanism 2 located on the sash 4 according to FIG. 1 and fixed to the frame 5 by the base part 6 according to FIG. 2, on which a force transmission means 8, driven by a mechanical drive device 7, is installed, having a connecting element 9 with the flap 4 (see Fig. 1-3), and the connecting element 9 is a connecting element of the drive rod 10, and with the help of a mechanical drive device 7, the locking mechanism 2 locks and unlocks the sash 4 at the frame 5, and the connecting element of the drive rod 10 with the sash 4 is located at the free end 11 of the force transmission means 8 and consists of a grip 12 located on the force transmission means 8 and a hook 13, which is connected with a locking pin 15 located on the locking mechanism 2, so that the sash 4, as a result of the mechanical launch of the retractable mechanism 1 and the action on the locking mechanism 2 located on the sash 4, moves from the closed position to the open folding position of the sash 4, so that the sash 4 as a result of the mechanical triggering the retractable mechanism 1 and acting on the locking mechanism 2 located on the sash 4 can move from the locked closed position to the rotary position of the abutment of the sash 4 to the frame 5 for manual translation into the rotary open position of the sash 4, so that the sash 4 as a result of the mechanical activation of the retractable mechanism 1 can be moved from an open folding position or, while in a swivel position, to a locked closed position.

List of symbols

1 Retractable mechanism

2 Locking mechanism

3 Window/door

4 Door

5 Frame

6 Base part

7 Drive device

8 Force transmission means

9 Connecting element

10 Drive rod connecting element

11 Free end

12 Capture

13 Hook

14 Drive rod element

15 Locking pin

16 Inner edge

17 Deepening

18 Guide element

19 Arc-shaped segment

20 Guide

21 Inner edge

22 Building

23 Guide element

24 Axis

25 Ledge

26 Ledge

27 Deepening

28 Rotation axis

29 Free end

30 Ledge

31 Crossbar

32 Arrow

33 Free end

34 Side edge

35 Side edge

Claims (14)

1. A retractable mechanism (1) for a tilt-and-turn sash of a window or door (3), containing a locking mechanism (2) located on the sash (4) and a fixed on the frame (5) a base part (6), on which a force transmission means (8) driven by a mechanical drive device (7) is installed, having a connecting element (9) with a sash (4), wherein the connecting element (9) represents is a connecting element of the drive rod (10), so that the locking mechanism (2) has a drive rod element (14) with gate or locking pins (15) located on it, and by means of a mechanical drive device (7) the flap (4) with the help of a lock mechanism (2) ensures bringing into the locking and unlocking position, and the connecting element of the drive rod (10) is located at the free end (11) of the force transmission means (8) and consists of a gripper (12) located on the force transmission means (8) and hook (13), so that the locking pin (15) located on the connecting element (14) abuts the inner edge (16) located on the hook (13) to automatically release the connecting element of the drive rod (10), while it is in the closed position, the force transmission means (8) and the locking mechanism (2) of the sash (4), which is in the locking position, by means of mechanical adjustment are made with the possibility of moving to the position of readiness for rotation, and the locking pin (15) adjacent to the inner edge (16) of the folded open hook (13), is located in the recess (17) of the grip (12) and is made with the ability, using the force transmission means (8), to mechanically transition to the rotary position of the sash (4) and as the force transmission means (8) is mechanically retracted in the direction of the closed position ) and in the direction of the locking position of the sash (4), the release of the locking pin (15) and the rotary-open position of the sash (4) are ensured, and the hook (13) has an additional inner edge (21), to which the locking pin (15) is supported in a supporting manner. in the locked position of the connecting element of the drive rod (10), and provides mechanical retraction from the open folding position of the sash (4) to the folding position of the locking pin (15) and further in the direction of the force transmission means (8) in the closed position and in the direction of the the locking position of the flap (4) of the locking mechanism (2) of the locking pin (15), characterized in that the open hook (13) with the locking pin (15) located in the recess (17) of the grip (12) when the force transmission means (8) is supplied from the closed position to the folding position of the sash (4), before reaching the folding position of the sash (4), it rests on the guide element (18) located on the sash (4) and, during automatic closing, is connected to the locking pin (15), so that the base part (6) has an arcuate segment (19) of the guide (20), and the locking pin (15) located in the folding position and the connecting element of the drive rod (10) adjacent to the guide element (18), following the force transmission means (8), ensures rotation by 90° and mechanical action to move the sash (4) to the open tilt position. 2. Retractable mechanism (1) according to claim 1, characterized in that What the retractable mechanism (1) is hiddenly installed in the rebate space between the frame (5) and the sash (4) of the window (3) or door and the connecting element of the drive rod (10) when the force transmission device (8) is retracted into the body (22) of the retractable mechanism ( 1) is made moving along the arcuate segment (19) of the guide (20) behind the force transmitting means (8), and when the guide element (23) pivotally connected to the connecting element of the drive rod (10) enters the arcuate segment (19) of the connecting element of the drive rod (10) is designed to rotate at an angle of almost 90° around the axis (24) of the locking pin (15) and with further retraction of the guide element (23) the connecting element of the drive rod (10) ensures the activation of the locking pin (2) with further engagement locking pin (15). 3. Retractable mechanism (1) according to claim 1, characterized in that that the force transmission means (8) is made in the form of a chain, which, when the folding position (4) is mechanically open, together with the extended grip (12) and the hook (13) of the connecting element of the drive rod (10) from the housing (22), ensures transfer to free area with a 90° offset to the direction of movement of the locking mechanism (2), and the connecting element of the drive rod (10) is held in a position transverse to the direction of extension of the sash (4), in a guide located on the sash (4) or the locking mechanism (2) element (18). 4. Retractable mechanism (1) according to claim 3, characterized in that the force transmission means (8) is made in the form of a deflection-resistant chain that transmits tensile and pressure forces. 5. The retractable mechanism (1) according to claim 3, characterized in that the grip (12) and the hook (13) each have protrusions (25, 26) that fit into the recess (27) of the guide element (18) with a geometric lock ), ensuring that the drive rod connector (10) and the locking pin (15) are locked in the locked position. 6. Retractable mechanism (1) according to claim 1, characterized in that that the grip (12) and the hook (13) are connected to each other with the impossibility of rotation due to friction, the recess (17) of the grip (12) is made in a U-shape and is located in the longitudinal direction in the direction of movement of the guide element (23) of the guide ( 20). 7. Retractable mechanism (1) according to one of paragraphs. 1-6, characterized in that the hook (13) with the help of the corresponding inner edges (16, 21) together with the recess (17) of the grip (12) of the locking pin (15) ensures clamping of the locking pin (15), and the inner edge (21 ) and the recess (17) in the direction of locking the sash (4) form a self-locking clamp for the locking pin (15). 8. Retractable mechanism (1) according to claim 7, characterized in that the inner edge (16) of the hook (13) forms around the axis of rotation (28) of the hook (13) at an acute angle a shape-setting contour that creates a force component in the opening direction flap (4), ensuring the release of the clamp of the connecting element of the drive rod (10) through the recess (17) of the grip (12) and the inner edge (21) of the hook (13) by releasing the locking pin (15). 9. Retractable mechanism (1) according to claim 8, characterized in that that in the direction of movement of the connecting element of the drive rod (10), at least one free end (29) of the guide element (18) has a wedge-shaped projection (30), which extends from the free end (29) to the recess (27) and provides automatic gradual closing the hook (13) in the open position by contacting the outer contour. 10. Retractable mechanism (1) according to claim 1, characterized in that What the guide element (18) is made symmetrically. 11. Retractable mechanism (1) according to claim 9, characterized in that that when the force transmission means (8) is supplied from the closed position with the hook (13) open and when the locking pin (15) is engaged in the recess (17) of the grip (12) in the folding position, the hook (13) before reaching the folding position is made to automatically initiate the connection of the hook (13) with the locking pin (15) with the hook (13) passing over the wedge-shaped protrusion (30) of the guide element (18) located on the sash (4) and carry out the connection by closing the hook (12). 12. Retractable mechanism (1) according to claim 1, characterized in that at the free end (20) of the force transmission means (8) a guide element (23) is hinged, forming a rigid connection with the gripper (12). 13. Retractable mechanism (1) according to claim 1, characterized in that that the housing (22) has an L-shaped cross-section along its length. 14. Method for manual and mechanical movement of the sash (4) of a window or door (3) using a retractable mechanism (1) according to paragraphs 1 - 13 with a locking mechanism (2) on the sash (4) and a base fixed to the frame (5) a part (6) on which a force transmission means (8) driven by a mechanical drive device (7) is installed, having a connecting element (9) with a sash (4), wherein the connecting element (9) is a connecting element of the drive rod (10 ), and by means of a mechanical drive device (7) the locking mechanism (2) is locked and unlocked, and the connecting element of the drive rod (10) is located at the free end (11) of the force transmission means (8) and consists of a force transmission device (8) located on the ) the grip (12) and the hook (13), which is connected to the locking pin (15) located on the locking mechanism (2), so that the sash (4) as a result of the mechanical launch of the retractable mechanism (1) and the impact on the one located on the sash (4) ) the locking mechanism (2) moves from the closed position to the open folding position of the sash (4), so that the sash (4) as a result of the mechanical activation of the retractable mechanism (1) and the impact on the locking mechanism (2) located on the sash (4) moves from locked closed position to the rotary position for manually moving the sash (4) to the rotary open position, so that the sash (4) as a result of the mechanical activation of the retractable mechanism (1) moves to the locked closed position.