EP2094926A1

EP2094926A1 - Two-function tilting and turning roof window

Info

Publication number: EP2094926A1
Application number: EP07875236A
Authority: EP
Inventors: Bronislav Zwyrtek; Henryk Musial
Original assignee: Fakro PP Sp zoo
Current assignee: Fakro PP Sp zoo
Priority date: 2006-12-11
Filing date: 2007-12-11
Publication date: 2009-09-02
Anticipated expiration: 2027-12-11
Also published as: PL219336B1; CN101657595A; EP2094926B1; PL381262A1; CN101657595B; WO2009058038A1

Abstract

Two-function tilting and turning roof window is provided on both sides with symmetrical self-locking systems, each having a set of elements automatically blocking the tilting function when the position of the sash is slightly changed versus the window frame due to turning the sash, and a set of elements automatically blocking the turning function when the position of the sash is slightly changed versus the window frame due to tilting the sash. Both blocking systems (11 ) and (21 ), and (12) and (18) are connected together by connecting means, which warrants their alternative action. When the window is closed, the locking elements (12) and (18) of one blocking set are always in mutual contact, but are not blocked in that position, and when starting the usage function the blocking of which they are serving, they play the role of a mechanism forcing the locking of the second usage function of the window by the locking set (11 ) and (21 ). Each self-locking system has also a retaining mechanism, which, when applying the function blocked by the set of elements (11 ) and (21 ), immobilizes the element (12) of the locking set consisting of the elements (12) and (18) staying in mutual contact when the window is closed.

Description

Two-function tilting and turning roof window

The subject of the invention is a two-function roof window - tilting and turning - with a tilting axis at the upper element of the window frame, and a turning axis at the central part of the window sash. This window enables only one of these functions to be applied at a time when opening. When pulling the upper part of the sash it is tilting, while when pressing its bottom part its is turning. The window, when opened to act in any function, is locked against intended or accidental starting the other function or changing its function during that opening.

A known two-function tilting and turning roof window has a window frame in which the sash is fitted into an intermediate frame. That intermediate frame consists of three elements connected together under straight angles and lies between the window frame and the sash when the window is closed. The intermediate frame swings about a tilting hinge at the upper part of the side elements of the window frame. In the intermediate frame, at the free ends of its side parts, swings the window sash so that the swinging hinge is located at half sash height and does not change its position when the sash is turned, remaining at a constant small distance from the glazing surface. The sash is blocked against turning about the intermediate frame by a lock which is placed at the upper elements of the sash and the intermediate frame.

The tilting function of the roof window is being actuated upon unlocking a handle at the bottom part of the window, which frees the connection of the intermediate frame to the window frame by exerting a pressure on the lower part of the sash. The intermediate frame connected with the sash by the locking element moves then together with the sash. Pulling the handle of the element locking the sash to the intermediate frame, when the window is already tilted, causes that both functions of the window are then active, and the sash can be turned between the arms of the intermediate frame lifted above the roof surface. In such a situation the connection of the window parts loses its required stiffness and stability, which loss is undesirable and can be dangerous to the user. The turning function of the roof window is being actuated by unlocking the handle at the lower part of the window and releasing the connection of the sash to the intermediate frame by pulling the grip of the locking element at the upper element of the sash. The sash can be swung about both the window frame and the intermediate frame resting within the window frame under the weight of the sash. Exerting then a pressure on the central part of the sash will cause raising the sash on the intermediate frame above the roof surface, like on an outrigger. In such a situation the interconnection of the window parts loses the necessary rigidity and stability, like in the case described above.

Therefore, the construction two-function, tilting and turning roof window - as described above - enables applying the tilting function of the window when pressing on to the lower part of the sash, or applying its turning function when pulling the grip on the upper part of the sash, but that window has no safety device against actuating both opening functions at the same time when the window is open.

The aim of the invention is achieving a two-function tilting and turning roof window in which the wanted tilting function is achieved by pressing on to the bottom part of the sash, and the turning function by pulling the upper part of the sash, but enabling only one usage function at a time, because the other function is then automatically locked and cannot be started when the window is opened.

The two-function tilting and turning window according the invention has a window frame in which the sash is set by way of intermediate arms. The upper ends of the intermediate arms tilt in the side elements of the window frame about an axis close at its upper element, and the sash swings about its central axis at the bottom ends of the intermediate arms. When sash is resting in the window frame, it is ready to be used In its tilting or turning function. When unlocking the handle locking the sash with the window frame in the closed position, we select one of the usage functions. So, the tilting function is achieved by pressing the handle at the lower part of the sash, and the turning one is achieved by pulling the grip at the upper part of the sash. The window is fitted at its both sides with symmetrical self-locking systems, each of which has a set of elements automatically locking the tilting function when the sash is slightly displaced from the window frame due to swinging the sash, and a set of elements automatically locking the turning function when the sash is slightly moved from the window frame due to tilting it. Both locking sets are interconnected by connecting means, which warrant their alternative function. When the window is closed, the elements of one locking set remain always in contact with the. other set, but are not locked together in that position, and when one of the usage functions is started, the blocking function to which one set of locking elements is designed, it plays the role of a mechanism forcing the blocking of the other usage function of the window by the second locking set.

Each of the self-locking sets has also a retaining mechanism which locks one usage function - by stopping the movable element of that locking set, the elements of which remain in mutual contact when the window is closed - when the window is being opened in order use the other function.

The two-function tilting and turning window according the invention is shown in examples of execution, in which Rg. 1, 5, and 9 describe the operating principle of the self-locking system in three execution variants, Rg. 2, 6, and 10 present the same self-locking systems in exploded view, Fig. 3, 7, and 11 show the same self-locking systems fitted to the elements of the roof window when seen from the window frame side, and Rg. 4, 8, and 12 when seen from the side of the sash.

Example I

The double-function tilting and turning window has its window frame 1 connected along its side elements with the fixture 2 by means of the fixing parts M and screws W, and the sash 3 connected by the intermediate arms 4 with the window frame 1. The intermediate arms 4 are at one end connected with the Mure 2 in a tilting way about the axis 5 located close to the upper element of the window frame 1. The sash 3 is connected 6 with the other ends of the intermediate arms 4 in a turning wav. about the turning axis. The turning axis 6 is located at the central part of the sash 3, not far from the glazing surface and does not change its position in respect to the window frame 1 within some ranges of the opening angle of the window. When the window is closed, the intermediate arms 4 lie parallel to the side elements of the window frame 1 and the sash 3. At both sides of the sash 3 two symmetrical self-locking systems are arranged, the elements of which are set on the intermediate arms 4, on the side elements of the sash 3, and on the side elements of the window frame 1. Along each intermediate arm 4, set on the pins 7, there is the sliding strip 8 with the holes 9, which act in conjunction with the pins 7 and limit the shifting range of the sliding strip 8. The sliding strip 8 has at its end at the tilt axis 5 a projection with the abutting surface 10, and has at both ends the locking pins 11 and 12; the locking pin 11 locking the turning function is located close to the abutting surface 10 and the tilting axis 5, while the locking pin 12 is locking the tilting function and is located at the other end of the sliding strip 8, close to the turn axis 6.

On the intermediate arm 4, close to the tilt axis 5, is arranged in a swinging way the two-armed element 13 with arms set at an angle to each other, having the rotary axle 14 at the end of one arm and the abutting surface 15 an the end of the other arm. The pin 16 is set at the connection point of the arms of the element 13. The free ends of the arms are pointing up, towards the glazed surface of the window. The abutting surface 15 of the element 13 mates with the abutting surface 10 of the strip 8.

At both sides of the window, close to the turning axis 6, on the side element of the window frame 1, is fixed the element 17 having an oblique cut-out in its upper surface, open towards the turning axis 6. This cut-out has the surface 18, which acts like a catch, and the abutting-and-sliding surface 19. Both surfaces act in conjunction with the pin 12 of the sliding strip 8.

At both sides of the window, at the tilt axis 5, on the side element of the sash 3, is fixed the element 20 with the catch 21 at the side of the tilt axis 5, and with an oblique cut-out in its upper surface open towards the turn axis 6, the cut-out the which locks the turn function, and has the surfaces 22 and 23 mating with the pin 16 set in the swinging element 13. The intermediate arm 4 has a longitudinal hole 24, which makes it possible to the locking pin 12 to enter into the element 17 in the window frame 1.

The lower element of sash frame is provided with a locking handle, not shown in the sketch, and on the upper element with the grip 25, which mates with the locking pocket 26 in the upper element of the window frame 1. The window is provided with the device 27 to assist tilting the sash 3.

The pin 12 and the surface 18 constitute the set blocking the tilting function when the turning function Is applied, and when tilting function is applied, the elements 12 and 18 shift the sliding strip 8 with its pin 11, which then slides under the catch 21 and locks the turning function. The element 13 together with the pin 16 and the abutting surface 15 on the strip 8 form the retaining mechanism, the action of which causes blocking of the tilting function by the pin 12, located under the surface 18, inside the cut-out in the element 17.

When the sash 3 rests on the window frame 1, the widow is ready to apply the tilting or the turning function. The pin 12, serving to block the tilting function lies under the surface 18 within the cut-out in element 17, the sliding strip 8 is shifted towards the tilting axis 5, and the pin 11 blocking the turning function is outside the catch 21 of the element 20. The abutting surface 10 is outside the reach of the abutting surface 15 of the element 13. In the closed window no opening usage function is blocked.

Upon unlocking the handle locking the sash 3 to the window frame 1 and exerting a pressure upon it, we start applying the window tilting function. The tilting movement can begin because the upper element of the sash 3 is locked by the grip 25 in the locking pocket 26, which hinders turning the sash 3 about the turning axis 6. Lifting of the sash 3 causes that the pin 12 moves along the oblique surface 18 of the cut-out in element 17, shifting the sliding strip 8 towards the turning axis 6. Then the pin 11 of the sliding strip 8 slides under the catch 21 and blocks the turning function. The intermediate arms 4 rise together with the sash 3, which turns about the tilting axis 5.

When the tilted sash 3 is being closed, the pin 12 leans against the surface 19 and sliding on it moves under the surface 18 of the cut-out in element 17, shifting the sliding strip 8 towards the tilting axis 5. The pin 5 slides out from the catch 21 and unlocks the turning function. The self-locking system returns to its starting state.

When we are going to apply the turning function, then, upon unlocking the handle In the bottom part of the window and unlocking the sash 3 in the upper part of the window, we pull the grip 25. Then, the sash 3 together with the element 20 moves down, the pin 16 slides along the surface 22 of the cut-out in the element 20 and turns the element 13 with its surface 15. The abutting surface 15 comes into contact with the abutting surface 10, obstructing the movement of the sliding strip 8 towards the turn axis 6, by the same hampering the release of pin 12 from under the surface 16 of the cut-out in the element 17 on the window frame 1. In such a way, the intermediate arms 4 remain connected with the window frame 1 by the pin 12; therefore the tilting function is blocked and the sash 3 can freely turn about the turning axis 16.

When the turned sash 3 is being closed, the pin 16 slides along the surface 23 of the cut-out in the element 20 turning the element 13 together with its abutting surface 15, which moves away from the abutting surface 10. The self-locking system returns to its starting state.

Example Il

The two-function tilting and turning window has the window frame 1, connected along its side elements with the fixture 2 by means of the fixing parts M and screws W, and the sash 3 connected by the intermediate arms 4 with the window frame 1. The intermediate arms 4 are at one end connected in a tilting way with the fixture 2, tilting about the axis 5 located close to the upper element of the window frame 1. The sash 3 is connected with the other ends of the intermediate arms 4. in a swinging way, turning about the turning axis 6. The turning axis 6 is located at the central part of the sash 3, not far from the glazing surface and does not change its position in respect to the window frame 1 within some ranges of the opening angle of the window.

When the window is closed, the intermediate arms 4 together with the cover 4a are parallel to the side elements of the window frame 1 and the sash 3. At both sides of the sash 3 are arranged two symmetrical self-locking systems, the elements of which are set on the intermediate arms 4, on the side elements of the sash 3, and on the side elements of the window frame 1. Along each intermediate arm 4, set on the pins 7, there is the sliding strip 8 with the holes 9, which mate with the pins 7 and limit the shifting range of the sliding strip 8. The sliding strip 8 is connected with the intermediate arm 4 by the spring 28. The sliding strip 8 is provided at its end on the side of the tilting axis 5 with the abutting surface 10, and on its opposite end, at the side of the turning axis 6, with the cog 29. Close to the abutting surface 10 of the sliding strip 8 there is the locking pin 11, and close to both ends of the strip 8 there are on the intermediate arm 4 the swinging elements 13 and 30.

The element 13, hanging in a swinging way close to the tilt axis 5, has two arms set at an angle to each other. The end of one arm is provided with the rotary axle 14 and the catch 31, the place where the arms are connected there is the pin 16, while at the end of the second arm there is the abutting surface 15, which mates with the abutting surface 10 of the sliding strip 8. Besides, the element 13 is connected with the intermediate arm 4 by the spring 32, hooked on the catch 31.

The swinging element 30 has the outline of a triangle and is connected with the intermediate arm 4 by the pin 33 on one vertex, close to the turning axis 6. On the second vertex of the element 30 there is the locking pin 12, and close to the third vertex there is the cut-out 34, which meshes with the cog 29 on the sliding strip 8. At both sides of the window, on the side elements of the window frame 1, close to the turning axis 6, is fixed the element 17 with its catch 18 and the abutting-and-sliding surface 19. The catch 18 and the surface 19 mate with the pin 12. At both sides of the window on the side elements of sash 3 near the tilt axis 5, Is fixed the element 20 with the catch 21 on the side of the turning axis 6, the element 20 having also the cut-out 35 and the oblique surface 23 at the side of the tilting axis 5. The cut-out 35 and the oblique surface 23 mate with the pin 16 on the swinging element 13. The catch 21 mates with the pin 11 on the sliding strip 8, locking the turning function. In the intermediate arm 4 there is a longitudinal hole 24, which permits the pin 12 to enter into the element 17 on the window frame 1. On the bottom element of the sash 3 there a locking handle, not shown in the drawing, 'and on the upper element of the frame of the sash 3 there is the grip 25. The window is provided with the mechanism 27 to assist tilting the sash 3.

The pin 12 together with the catch 18 locks the tilting function when the turning function is in use, whereas, when the tilting function is applied, the elements 12 and 18 slide, by means of the elements 30 and 8, the pin 11 under the catch 21, blocking the turning function.

The swinging element 13, together with the pin 16, the abutting surface 15, and the spring 32, as well as the abutting surface 10 on the sliding strip 8 constitute the retaining mechanism, which, by stopping the sliding strip 8, lock the pin 12 under the catch 18, and by the same block the tilting function.

When the window sash 3 rests on the window frame 1, the window is ready to apply its tilting function or the turning one. The pin 12 is resting under the catch 18 and is supported by the abutting and sliding surface 19, which stops the swinging element 30, and the cut-out 34, meshed with the cog 29, keeps the sliding strip 8 close to the turning axis 6, tensioning the spring 28. The pin 11 stays outside the catch 21 of the element 20, which causes that the spring 32 is tensioned, and the abutting surface 15 of the element 13 is outside the reach of the abutting surface 10 of the sliding strip 8. In the closed window no opening function is blocked.

Upon unlocking the handle locking the sash 3 to the window frame 1 and pressing the handle, we start using the tilting function by tilting the sash 3 about the tilting axis 5. The tilting movement can be started because the tensioned spring 32 presses the pin 16 to the cut-out 35 in the element 20 and connects the intermediate arms 4 with the sash 3 with a specific force, which is greater than the force necessary to lift the sash 3 during the tilting function. Rising the sash 3 causes that the pin 12 slides out from the catch 18 and turns the element 30 about the pin 33. The swinging of the element 30, which is meshed by the cut-out 34 with the cog 29, shifts the sliding strip 8 towards the tilting axis 5, which movement is enhanced by the tensioned spring 28. That movement of the sliding strip 8 towards the tilting axis 5 causes that the locking pin 11 slides under the catch 21 and locks the singing function by connecting the intermediate arms 4 with the sash 3. The spring 28 safeguards the sliding strip 8 from free shifting when the window is in use. When the window is opened in that way, only the tilting function can be used.

When the tilted sash 3 window is being closed, the pin 12 rests on the surface 19 and sliding on it moves under the catch 18, and at the same time the movement of pin 12 forces turning of the element 30. The swinging of the element 30, the cut-out 34 of which is in mesh with the cog 29, causes shifting of the sliding strip 8 towards the turning axis 6, and then the pin 11 moves out from the catch 21, unlocking by that the turning function and the self-locking system returns to its starting state.

When the turning function is to be used, then upon unlocking the grip 25 is to be pulled, which is located at the upper element of the sash 3. The sash 3 together with the element 20 moved down from the pin 16, which slides on the oblique surface 23 and together with the tensioned spring 32 turns the element 13. Turning of the element 13 changes the position of the abutting surface 15, which sets it on the way of the abutting surface 10 of the sliding strip 8. The sliding strip 8 cannot move, hindering the pin 12 from moving out from the catch 18. The intermediate arms 4 are connected with the window frame 1 and the tilting function is automatically locked. When the window is opened in such a way, only the turning function can be used.

When the turned sash 3 is being closed, the element 20 is coming into contact with the pin 11 on the sliding strip 8 and slightly removes the abutting surface 10 from the abutting surface 15. The pin 16 slides on the oblique surface 23 and turns the element 13 with its abutting surface 15, at the same time tensioning the spring 32, and when it falls Into the cut-out 35, the self locking system returns to its initial state.

Example III

The two-function tilting and turning window has the window frame 1, connected along its side elements with the fixture 2 by means of the fixing parts M and screws W, and the sash 3 connected by the intermediate arms 4 with the window frame 1. The intermediate arms 4 are at one end connected in a tilting way with the fixture 2 about the axis 5 located close to the upper element of the window frame 1. The sash 3 is connected in turning way about the turning axis 6 at the other ends of the intermediate arms 4. The turning axis 6 is located at the central part of the sash 3, not far from the glazing surface and does not change its position in respect to the window frame 1 within some ranges of the opening angle of the window.

When the window is closed, the intermediate arms 4 together with the cover 4a are parallel to the side elements of the window frame 1 and the sash 3. At both sides of the sash 3 are arranged two symmetrical self-locking systems, the elements of which are set on the intermediate arms 4, on the side elements of the sash 3, and on the side elements of the window frame 1. Along each intermediate arm 4, set on the pins 7, there is the sliding strip 8 with the holes 9, which mate with the pins 7 and limit the shifting range of the sliding strip 8. The sliding strip 8 is connected with the intermediate arm 4 by the spring 28.

The sliding strip 8 is provided at its end on the side of the tilting axis 5 with the cut-out 34, and on its opposite end, at the side of the turning axis 6, with the with the locking pin 11. Close to the locking pin 11, on the strip 8 there is the cut-out 34 with the abutting surface 10, and on the intermediate arm 4, close to both ends of the sliding strip B₁ are set the swinging elements 13 and 30.

The swinging element 13 is a single arm lever set together with the spring 32 on the pin 14 close to the singing axis 6. On the free end of the element 13 there is a protrusion with the abutting surface 15, which mates with the abutting surface 10 on the sliding strip 8. In its central part the element 13 is provided with the pin 16.

The swinging element 30 has the shape of a triangle and is connected at one of its vertexes by the pin 33 with the intermediate arm 4, close to the tilting axis 5. At the second vertex of the swinging element 30 there is the locking pin 12, while the third vertex has the form of a cog 29, which meshes with the cut-out 34 in the sliding strip 8.

At both sides of the window, on the side element of the window frame 1, close to the turning axis 6, is fitted the element ZO with the catch 21 and the abutting surface 23. The catch 21 mates with the locking pin 11 on the sliding strip 8, while the abutting surface 23 mates with the pin 16, which is set in the swinging element 13. At both sides of the window, close to the tilting axis 5, on the side element of the sash 3, is fitted the element 17 with a cut out open towards the tilting axis 5, with the catch 18, and the sliding surface 19, which mates with the pin 12 on the swinging element 30. In the intermediate arm 4 are made the longitudinal holes 24 and 36, which permit access of the pins 11 and 16 to the element 20 on the window frame, and limit their stroke range. The lower element of the frame of the sash 3 is provided with a locking handle (not shown in the drawing), and the upper element is fitted with the grip 25. On the upper element of the window frame 1 there is the locking pocket 26, which mates with the grip 25. The window is provided with the mechanism 27 to assist tilting the sash 3.

When the window sash 3 rests on the window frame 1, the window is ready apply its tilting function or the turning one. The pin 12 is resting under the catch 18 of element 17 and is supported by the abutting and sliding surface 19. This stops the swinging of element 30, which by meshing of the cog 29 with the cut- out 34 keeps the sliding strip 8 shifted towards the turning axis 6, and causes that the spring 28 is tensioned. The pin 16, close to the turning axis 6, rests on the abutting surface 23, the spring 32 is compressed, the abutting surface 15 of the swinging element 13 is outside the reach of the abutting surface 10 of the sliding strip 8, and the locking pin 11 is outside of the catch 21. When the window is closed, no usage function is blocked.

Upon unlocking the handle locking the sash 3 with the window frame 1, and pressing the sash, it is possible to initiate the tilting function of the window. The tilting movement can start because the upper element of the sash 3 is locked by the grip 25 in the locking pocket 26, which hampers turning the sash 3 about the turning axis 6. Raising the sash 3 together with the intermediate arm 4 and the sliding strip 8 causes that the pin 16 loses its support by the surface 23 and the element 13 pressed by the spring 32 starts turning about the pin 14. This causes that the protrusion with the abutting surface 15 comes into contact with the abutting surface 10 on the strip 8 and obstructs shifting the sliding strip 8 towards the tilting axis 5, blocking the pin 12 under the catch 18. The turning function is blocked and when the window is open, only the tilting function is possible.

When the tilted sash 3 is being closed, the pin 16 rests on the abutting surface 23 of the element 20 and forces the element 13 to turn, compressing the spring 32. Turning the element 13 causes that the protrusion with the abutting surface 15 moves away from the abutting surface 10 releasing the sliding strip 8, but the strip 8 cannot shift because the pin 12 remains under the catch 18 stopping the element 30 from turning, as its cog 29 is in mesh with the cut-out 34 in the sliding strip 8. The self-locking system returns to the starting arrangement.

When the turning function is to be used, then upon unlocking the bottom handle and unlocking the grip 25 from the locking pocket 26, we have to pull the grip 25, starting to turn the sash 3 about the turning axis 3. The locking pin 12 slides out from under the catch 18 and turns the element 30. The element 30 is connected with the sliding strip 8 by the cog 29 in mesh with the cut-out 34. Its turning moves therefore the sliding strip 8 towards the tilting axis 5, which is assisted by the tensioned spring 28. The locking pin 11 slides then under the catch 21 of the element 20 on the window frame 1. The intermediate arms 4 are connected with the window frame 1 and the tilting function is automatically blocked. The swing 28 keens the strip 8 from self-acting shifting when the window is open. At such a way of opening the window, only the turning function can be used.

When the turned sash 3 is being closed, the pin 12 rests on the surface 19 and sliding on it moves under the catch 18, at the same time forcing the element 30 to turn. Turning the element 30, which is by the cog 29 in mesh with the cut-out 34, shifts the sliding strip 8 towards the turning axis 6 and moves the locking pin 11 away from the catch 21. The self-locking system returns to its initial condition.

Claims

1. A two-function tilting and turning roof window, with a tilting axis at the upper element of the window frame and a turning axis at the central part of the window sash, consisting of a window frame with a fixture on its side elements and a window sash set into it by means of intermediate arms, in which the required tilting function is achieved by pressing the bottom part of the sash and the required turning function is achieved by pulling the upper part of the sash, characterized in that the window is fitted at both sides with symmetrical self-locking systems, which upon a slight change of the position of the sash in the window frame, due to tilting the sash, automatically block at both sides the turning function, and upon a slight change of the position of the sash In the window frame, due to turning the sash, automatically block at both sides the tilting function.

2. Two-function tilting and turning roof window according to claim 1, characterized in that each self-locking system has two sets of locking elements (11), (21), and (12) , (18), which alternatively block one usage function when the second usage function is applied, consisting of a movable element, advantageously in form of locking pins (11) and (12), mating with an immovable element, advantageously in form of the catches (21) and (18), the movable elements (11), (12) being connected by connecting means, and in the dosed position of the window the elements of the system (12) and (18) are always in mutual contact, not blocking the usage function, and besides each self-locking system has a abutting mechanism, which upon starting the usage function, the blocking of which is to be achieved by the set of elements (11) and (21), immobilizes the element (12) through the intermediary of means connecting the movable elements (11) i (12), blocking the usage function locked by the elements (12) and (18), while upon starting the usage function, the blocking of which is to be achieved by the elements (12) and (18) the element (12) mating with element (18) through the intermediary of means connecting the elements (11) and (12) changes the position of the movable element (11), which comes into contact with the immovable element (21) blocking the usage function inhibited by the set of locking elements (11) and (21).

Two-function tilting and turning roof window according to claim 2, characterized in that the blocking pins (11) and (12) connected by connecting means are set on the intermediate arm (4), and the element (20) with the catch (21) mating with the pin (11) is set on the side element of the sash (3), while the element (17) with the catch (18), which mates with the pin (12) is set on the side element of the window frame (1).

Two-function tilting and turning roof window according to claim 2, characterized in that the blocking pins (11) and (12) connected by connecting means are set on the intermediate arm (4), and the element (20) with the catch (21) mating with the pin (11) is set on the side element of the window frame (1), while the element (17) with the catch (18), which mates with the pin (12) is set on the side element of the sash (3).

Two-function tilting and turning roof window according to claim 2, 3, or 4, characterized in that the blocking pins (11) and (12) are connected by the strip (8), which is arranged in a sliding way on the intermediate arm (4).

Two-function tilting and turning roof window according to claim 2, 3, or 4, characterized in that the pin (11) is set on the strip (8) and the pin (12) is set on the element (30), which is connected with the strip (8) by meshing, the strip (8) is sliding and the element (30) set in a rotary way on the intermediate arm (4).

Two-function tilting and turning roof window according to claim 2, 3, or 4, characterized in that the retaining mechanism consists of a abutting and a pin (16) set on the intermediate arm (4), and also of the surface (23) on the element (20), the abutting surface (10) mating with the abutting surface (15), and the pin (16) mating with the surface (23).

Two-function tilting and turning roof window according to claim 7, characterized in that the movement of the element (13) in one direction forces the pin (16) to slide on the surface (22), and the movement in the opposite direction forces the pin (16) to slide on the surface (23).

Two-function tilting and turning roof window according to claim 7, characterized in that the movement of the element (13) in one direction is forced by the spring (32), and the movement in the opposite direction forces the pin (16) to slide on the surface (23).