SE534713C2 - Locking device for swing arm bracket - Google Patents

Abstract

Locking device for swinging arm assemblies to windows, doors, shutters or the like, where a casement (5), for instance a window casement, is pivotally suspended by two mirror symmetrical similar swinging arm assemblies (6), comprising one in the one frame plate (9) articulately attached blocking device (11), which blocking device comprises a lock recess (12) arranged to cooperate with a protruding holding element (13), and where the blocking device 11 is arranged to block the movement of the casement (5) both outwards and inwards relative the frame (1) an where the holding element (13) is arranged on an outer assembly arm (7), which assembly arm (7) is articulately arranged in the casement (5). By that the blocking device (11) locks principally between frame and casement, whereby a strong blocking function is obtained.

Description

20 25 30 35 40 534 713 attachment point of the pivot arm to the core plate. The operation becomes especially difficult with certain combinations of the size of the fitting in combination with the window size. It is not uncommon for a piece of furniture such as a desk, sofa or similar to be placed in front of the window. It is then often easy to open the window to its locked position where both the child lock and the ventilation lock can be active, but then having access to maneuver this lock at the same time as the window to release the locked position means great difficulties. In particular, the maneuvering of the latch can be somewhat better if it is provided with, for example, an extra long maneuvering handle or an extra maneuvering member in a favorable position, so that the maneuvering movement is in one way or another linked to the latch, but this means a more expensive and complicated construction. sensitive to clogging and dirt with the consequence that the mechanism jams. In one of the above-mentioned solutions, the ventilation lock consists of two details, a locking arm together with a child lock, which is a disadvantage from a handling and material point of view. Although the second solution consists of a detail, it has the disadvantage that it always gets stuck in the ventilation position, regardless of whether this is desired or not, after which the latch must also be operated in order to be able to close the window. Another problem with existing locks is that they do not engage properly when the window frame is turned to the position for window cleaning. To ensure the locking position, the window must be turned close enough to 180 degrees, which can be difficult as there are no handles accessible in this position. The intention is that the latch in this position should lock by its own weight in its latch position, but often the latches get stuck due to dirt and the like and the window frame must be turned in principle to 180 degrees in relation to its closed position to force the latch in lock position. However, older solutions show shortcomings in strength when, for example, a deep groove, constituting the locking position, next to the lock's nose, the strength at the nose portion deteriorates, whereby the lock can break at greater load. However, fracture is not the big problem but rather the suspension that occurs in the entire fitting when applying a force to the bottom of the window frame. The force is taken by the latch and its stop, its holding means, which is located near the middle of the longer fitting arm and this constructive design means that long levers are obtained, which has the consequence that the entire fitting springs under load. This in turn means that the window's opening dimensions at the bottom edge and in the locked position under load, without major difficulties, can be doubled against its childproof and unloaded position, which leads to a good safety margin to the normally permitted degree of opening must be met to meet safety requirements. thus limiting the actual opening at the venting position.

Description of the invention The present invention achieves the purpose of solving the above problems in the device of the type specified in the preamble. Previous solutions as mentioned above have a child locking function where a locking hook / locking hook grips a holding member, usually a shoulder cut or the like. The holding means in these older solutions is placed on one of the pivot arms, usually the lower one of the two pivot arms, and thus it becomes possible to press out the window frame relative to the frame despite the locked position, since the pivot arm fitting itself is resilient via the pivot arms. In the present invention, a much stronger so-called child lock or opening lock is obtained by placing the holding member on the outer fitting arm of the swivel arm fitting. Similar to the older solutions, the latch engages the holding member by guiding the holding member into a locking recess, comprising a first end position for the resting position of the holding member and a second end position arranged for a combined position / instruction for child lock and ventilation lock. Through this second end position, a locking position is obtained between the frame plate arranged fixedly in the frame and the outer fitting arm arranged in the window frame, without long lever arms and without the fitting becoming resilient relative to the locking position. The closer the holding member is placed in relation to the attachment between the outer fitting arm and the window frame, the stronger the construction becomes with less possibility of resilience to the locking position as a result. Furthermore, less flexibility in the fitting itself means that the opening between the bottom piece of the window frame and the frame is not significantly affected by the applied force, whereby the safety margin on the opening dimension in the locking position in relation to requirements and standards can be chosen differently. This leads to a larger opening force in locking mode ventilation mode can be allowed, and / or that the freedom of choice on ventilation modes increases, i.e. more ventilation modes are allowed if desired. Not least, it will be very difficult, if not impossible, for a small child to push up the window and fall out. In addition, it becomes difficult or almost impossible for a possible burglar to force his way through a locked window.

According to an embodiment, the holding member is arranged on the window frame and thereby the locking force is obtained between the frame plate arranged in the frame and the window frame, which gives a very strong and inflexible lock.

According to a preferred embodiment of the invention, the catch is hingedly attached to the frame plate arranged fixedly in the frame, between the attachment points of the upper and lower pivot arm. In this way, the latch is placed lower in the construction and thus better accessible for maneuvering, compared with older solutions where the latch is hingedly attached around the attachment point of the upper pivot arm to the frame plate. With this new placement of the latch, it is also obtained that the actual opening dimension between the bottom piece and the frame of the arch can be increased compared to the normally permitted opening dimension, since the latch thereby grips lower on the outer fitting arm and thus closer to its point of attachment to the window frame. between the holding means and the point of attachment to the window frame becomes shorter. The placement is thus more favorable compared to older solutions where the catch is stored around the attachment point of the upper swingarm and too difficult to access.

In order to further increase the accessibility, in a preferred embodiment the hinged attachment of the catch has been placed closer to the attachment of the lower pivot arm to the frame plate than to the attachment of the upper pivot arm to the frame plate. This also leads to the latch gripping further slightly lower on the outer fitting arm and thus also closer to its point of attachment to the window frame, with the result that the lever that arises between the holding member and the point of attachment to the window frame becomes shorter. This results in a stronger teddy bear barrier compared to older solutions.

The so-called ventilation lock, which prevents the window from closing in an uncontrolled manner, is in no way "automatically" disconnectable in previous solutions, but the lock must be operated in one way or another to be disconnected. In a preferred embodiment of the invention, this disadvantage is solved in that the placement of the holding means together with the design on the instruction in the locking recess of the latch in the second end position, which constitutes the combined position of the child latch function and the air latch function, causes the closing force, thus, usually the hand force, which affects the window frame in a movement coming towards the core when closing, always acts above the articulated attachment of the latch. The position of the holding member and the design of the locking guide at the locking position, thus means that the angle, located in the direction of the force, and between the tangent to the point of attack of the closing force between the holding member and the track guide side, and an imaginary line in the lock position, is greater than 90 °. which means that the closing force always acts above the center of rotation of the latch. Thus, the latch automatically, during the closing movement, strives to be lifted out of its latch position and thus the latch automatically becomes disengageable when a sufficiently large force is applied inwards to the bottom piece of the frame. This eliminates the disadvantages of the older solutions, where you have to simultaneously disengage the latch with the "two-hand grip" and move the window frame inwards to close. It is an advantage with this one-handed grip also from a handicap point of view, as the window can be closed without reaching the latch for disengaging the reading. In a preferred embodiment of the invention, an automatically disengageable latch is provided by making the instruction in the latch recess of the latch, in its second end position, which constitutes the combined position of the child latch function and the air latch function, whereby the closing force, i.e. usually the hand force acting on a window inward movement of the frame when closing, always acts above the articulated attachment of the latch. This is made possible by adjusting the groove depth to this instruction where the groove depth is then made smaller than the cross member of the holding member, i.e. the cross dimension or height of the part of the holding member resting in the groove guide in the other end position, the combined position of the child lock function and the air lock function. However, the overall design is well tested so that a satisfactory ventilation barrier is obtained. Preferably, the holding means has a circular cross-section, in which case the cross-section of the holding means in that case is the same as its diameter. Thereby a ventilation lock is obtained, which does not mean a completely fixed locked position but which is automatically disengaged when a sufficiently large force is applied inwards to the bottom piece of the frame. This obviates the previously mentioned disadvantages found in the older solutions, where you have to disconnect the latch at the same time with a two-handed grip and move the window frame inwards to close.

In a preferred embodiment, the second end position, the combined position of the child lock function and the air lock function, has the shape of an open semicircle. Preferably, the holding member has a circular cross-section, and the form is preferably coordinated with the semicircular shape of the second end position, the position of the holding member and the semicircular shape of the second end position, the window frame in a movement inwards towards the frame when closing, always acts above the hinged attachment of the latch, whereby an automatically disengageable ventilation latch is obtained. However, the overall design is well tested so that a satisfactory ventilation barrier is obtained.

According to a further preferred embodiment of the invention, the locking device comprises a spring, mounted and clamped around the center of rotation of the latch. The spring is arranged to force the latch to lock in that the clamped spring force wants to rotate the latch in the direction of the holding means, and when the holding means, at the movement of the window frame, comes to the locking position, the latch snaps towards the holding means and then partially encloses the same. Adjacent to the latch there is a stop lug which is fixedly arranged in the frame plate, and which stop latch limits the movement of the latch to operate within a predetermined area.

The spring force also gives the advantage, compared with older solutions, that the latch locks earlier about the holding member both in the child's lock / ventilation position of the frame and in its inverted position, when the window frame is turned half a turn, for example during window cleaning. This avoids the common problem in older solutions that the window frame must almost be fully rotated to its 180-degree position in order for the latch to engage with the holding member. It is difficult to get a grip on the window and turn it around to almost 180 degrees in relation to its closed position. The latch in the new solution snaps into a previous position, which means that the window does not have to be swung around as much to achieve locking of the window frame in its inverted position. Furthermore, through the spring it is possible to choose how slow it should be to close the window from its ventilation position by biasing the spring to different amounts. In addition, a clear snap sound is heard when the latch goes in the locked position about the holding member, which also makes it easier for the user. Since the combined locking position (child lock / ventilation lock) does not allow appreciable flexibility in the fitting itself, it is possible to choose a permissible opening dimension between the base of the window frame and the frame, which is equal to or very close to the permissible, and not as in older solutions by a good margin to the allowable measure. This also opens up the possibility of introducing fl your ventilation positions between the outer positions for closed and locked position. In a preferred embodiment, therefore, the locking recess of the latch comprises two or two directions between the outermost combined child latch position / ventilation position and the innermost rest position of the holding member. These instructions, like the extreme combined locking position, are shallow, to allow automatic disconnection when closing or when opening to the desired desired degree of opening or to the child locking position. Here, too, it is advantageous for the latch to be provided with a spring which acts to hold the latch against the holding member in the various positions with a predetermined force, but it is not necessary for the function.

In order to be able to open the window more than to the child lock position, the lock must in one way or another be released from its lock position while the window frame is moved outwards relative to the frame, whereby the holding member is allowed to leave the locking recess. In a preferred embodiment of the invention, the latch comprises an operating member, which is preferably a lever of any length fixedly mounted on the latch.

The actuating means is arranged to turn the latch at an applied compressive force so that the hook / nose is lifted, whereby the latch with its locking instruction leaves the holding means. By simultaneously moving the window frame outwards, the holding member leaves the recess and the window frame can continue its movement outwards, either to a larger opening or to be rotated about half a turn to get into position for, for example, window cleaning or the like. If it is desired that the position for operating the latch should be located lower on the side of the frame, it is entirely possible to move the operating member further down along the frame and via Moving Devices move the movement of the operating member to the latch. This could be desirable in some applications, such as handicap adapted applications and the like. According to a preferred embodiment, the lock of the locking device and more particularly its locking recess comprises a first guide lug between the first end position / rest position of the holding member and the second end position / locking position, which first guide lug is arranged to start a rotational movement of the latch when the arch with its latch moves in the direction of the rest position, which is the closed position of the window. When the holding member relative to the latch is moved in the direction from the latch position to the rest position, a rotational movement of the latch begins in the upward direction, relative to the holding member and the window, in that the locking recess has a designated first guide lug which lifts the latch when the holding member passes this first guide lug. The rotational movement then continues due to the latch having a rounded side which faces the frame and when the latch comes into contact with the frame the rotational movement of the latch continues until the rest position of the latch, and thus also of the holding member, is assumed. This is advantageous in relation to older solutions where the rotational movement is only started when the latch touches the frame, which increases the friction between the fitting and the frame with increased wear as a result.

According to a preferred embodiment, the locking recess of the latch comprises a second guide lug between the first end position / rest position and the lower of the guide surfaces of the locking recess. The guide surfaces are located on each side of the opening of the locking recess and are arranged to guide the holding member into the locking recess. This second guide lug is arranged to turn the latch so that the holding means, when moving from the first end position rest position to the second end position latch position, will land in the second end position / latch position.

This is advantageous because the lock through this guide will surely engage the holding means even if the embodiment would not include the spring function, which was described above, or that the spring function would for some reason stop working. In a preferred embodiment, the latch comprises a stop side. below the lower guide surface, i.e. below the opening of the locking recess. When the locking device functions as it should, the latch is in such a position that the guide surfaces, which are located on either side of the opening of the locking recess, guide the holding member into the locking recess. wherein the combined child lock / ventilation lock comes into operation as previously described. To ensure that the user notices if the latch would not work for any reason, ie that the latch has ended up in a position where it cannot operate, the closing of the frame is prevented if the latch is stuck in an upright position, for example due to dirt or such preferably at the hinged attachment of the latch. Because the holding means hits the stop side of the latch, i.e. below the lower guide surface, it is not possible to close the window completely and thus the user is alerted to the problem and given the opportunity to remedy the problem if possible. This also means that if the window can be closed, the latch works as intended, which provides increased functional safety. In a preferred embodiment, the locking recess of the latch comprises an area in which the holding means can be inserted from the side, i.e. approximately perpendicular to the spreading surface of the latch. This is to further guarantee that the latch works if the window can be closed. This additional safety works in such a way that if for some reason the arch is not centered in the frame when closing, and this means that the holding member, when it moves towards the latch, misses the latch laterally. that is, 10 15 20 25 30 35 40 534 713 passes next to the latch, the holding means will still be inserted into the locking recess of the latch. but then substantially from the side, that is, perpendicular to the latch and the locking recess. In the closest closed position of the frame or completely closed position, there is no other option for the lock than to enter the locking recess and thus the locking functions also work in these cases.

To ensure that the latch does not slip off the retaining member due to a lateral movement of the arch, the retaining member comprises, in a preferred embodiment, a collar at the free end of the retaining member, the opposite end relative to the end fixedly mounted in the outer fitting. This collar prevents the latch from sliding off the holding member in the direction of its free end.

According to a further preferred embodiment, the locking device comprises a further latch, i.e. both the mirror-symmetrically equal pivot arms of the respective arm fittings comprise a latch with corresponding holding means placed on the respective outer fitting arm. In this embodiment, the placement of holding means and corresponding barrier, mainly in height, is different on the respective frame plate, whereby the advantage is that the total number of locking and ventilation positions is increased. within the scope of the invention it is also understood that the number is not limited to one latch per complete window, nor one latch / one holding member per frame plate, but the number of latches / holding means is quite possible to increase depending on need. In a preferred embodiment, the two mirror-symmetrically equal pivot arm fittings and frame plate each comprise a latch with corresponding holding means, but where each latch has different distances between its respective storage point and the other end position / latch position. Thereby the advantage is achieved that the total number of locking / ventilation positions is increased and can be varied as needed.

Brief description of the figures 1 shows in detail in diametrical, partly schematic cross-sections or perspective views: - Figs. 1a and 1b show sections of a complete window with frame and a window frame in open position and locked position, respectively.

- Fig. 2a-2c show detailed pictures of swingarm fittings, catch and holding means.

The constructive design of the present invention is described by the following detailed description of embodiments of the invention with reference to the accompanying drawings which show a preferred, but not limiting, embodiment of the invention. In addition, the invention further advances the state of the art in the field in various respects. This is realized in the present invention in that a device of the type described below is substantially as described in the characterizing part of claim 1.

Detailed description of the Fig gures Fig.1a shows a section through a complete frame 1 which comprises a lower part 2, an upper part 3 and two side parts 4. In the side parts a window frame 5 is pivotally suspended by means of two mirror-symmetrically equal pivot arm fittings 6 each comprising an outer fitting arm 7, the lower part of which is hingedly attached, with a hinge pin 25, to the window frame 5, near the center of the side part of the frame. Furthermore, the pivot arm fitting 6 comprises an upper pivot arm 8 which in its upper end is hingedly attached to the upper end of the outer fitting arm 7. The lower end of the upper pivot arm 8 is also hingedly attached to a frame plate 9, fixedly mounted in the frame. swivel arm 8 attachment. Furthermore, the lower pivot arm 10 is also hingedly attached to the lower end of the frame plate 9. Between the attachment points of the pivot members towards the frame plate 9, a catch 11 is hingedly attached and preferably the attachment point is located slightly closer to the attachment of the lower pivot arm 10.

On the outer fitting arm 7 a holding member 13 is also arranged preferably below the center of the outer fitting arm 7. This holding member is preferably a shoulder section or the like and the latch 11 is arranged to grip the holding member 13. According to the guide the window is in a position is in engagement with the holding member 13 but opened to a greater degree of opening. In this position the window is not blocked for movement but pivotally movable about its joints either inwards towards the frame to the locked position or further to the closed position or continued movement outwards towards a greater degree of opening or to a reversed position (180 degrees) for window cleaning or the like. Furthermore, at the upper edge of each of the side pieces of the frame 5 there is a sliding shoe 23 which is arranged to run in a groove 24 during the rotational movement of the frame. The upper part of the arch 5 thus moves according to a linear movement along the side parts 4 of the frame, while the bottom piece of the arch 5 follows a circular path between its closed position and its inverted position.

Fig. 1b shows the frame 1 with the window frame 5 in its locked position, which is a combined position for child locking and ventilation. The child locking position means that the frame 5 is locked for outward movement in relation to the frame 1 and is a fixed position against outward movement, which is a safety requirement according to current standards. In this position, the latch 11, via a recess received in the latch, locking recess 12, has come into engagement with the holding member 13, in that the locking recess 12 comprises an end position, an instruction, arranged for the holding member 13. Details of the latch 11 are shown in Figure 2b. Safety regulations indicate a maximum measure of the distance between the bottom piece of the frame 5 and the frame 1 and according to Swedish standards, this measure is 100 mm.

According to the preferred embodiment, the child lock position is combined with a position for ventilation, which means that the window frame 5 is also more or less prevented from moving inwards towards the frame 1. This is to prevent the window from closing in case of wind load, pressure changes or the like, and thus cause accident risks or unwanted closing of the window. Further details on this can be found in the description of the latch in Figures 2a-c.

Fig. 2a shows a complete swing arm fitting 6 in detail.

The pivot arm fitting 6 comprises the outer fitting arm 7 which is hingedly attached to the frame 5 (not shown), by means of the hinge pin 25, which is hingedly attached to the lower end of the outer fitting arm 7.

The outer fitting arm 7 is preferably a plate-like plate detail with a bent or folded edge, where the outer surface of the edge is arranged to live with the outer surface of the arch at the closed position of the window. On this outer fitting arm 7 the holding member 13, preferably a shoulder section, is fixedly arranged, preferably on the lower part of the outer fitting arm 7. At the upper end of the outer fitting arm 7 the pivot arms 10 are hinged. attach. The upper pivot arm 8 is hingedly attached at the top of the outer fitting arm and just below the upper pivot arm 8 the lower pivot arm 10 is hingedly attached. Furthermore, the pivot arm fitting 6 comprises the frame plate 9 which is fixedly arranged in the side part 4 of the frame (not shown), and which frame plate 9 at its upper end comprises a hinged attachment of the upper pivot arm 8 and at the lower end of the frame plate 9 the lower pivot arm 10 pivotally attached. Between the attachments in the frame plate, the latch 11 is hingedly attached, and around the attachment of the latch a spring 17 is clamped. The spring grips the latch in such a way that the clamped spring force wants to turn the latch in the forward / downward direction in relation to the latch's position in the frame and the frame, in order to force the latch into engagement with the holding member 13 when it is guided in the latch 12. the latch 11 is not in engagement with the holding member 13, but this is shown in Figure 1b. The latch 11 also comprises an actuator 18, which is preferably a lever arranged on the latch. In connection with the latch 11 there is a stop lug, not visible in the figure, which limits the rotational movement of the latch forwards / downwards.

Figure 2b shows the latch 11 in detail in the preferred embodiment.

The latch 11 has a plate-like appearance and is preferably a punched sheet metal part, but may for that matter just as easily consist of plastic or other suitable material. The latch 11 has a rounded side 21, which faces the frame side in the complete frame construction and furthermore also a rounded shape at the side facing the frame 5 or the outer fitting arm 7 with its holding member 13. Furthermore, this side also includes guide surfaces 14 on each side if, the preferably punched out, locking recess 12 in the latch 11. These guide surfaces 14 are arranged to guide the holding member into the locking recess 12, when the arch 5 moves in the direction of the frame 1. The locking recess 12 comprises a first end position 15, which is a rest position for the holding member 13, at the closed position of the window, and a second end position 16, which is a position for the combined child lock function and the ventilation lock. Between the end positions. at the upper side 28 of the locking recess there is a sliding surface 26 between the end positions. The sliding surface also comprises a first guide lug 19 which causes the lock to start a lifting and rotating movement when the pouring member 13 passes the first guide lug 19. Also opposite the lower recess 29 of the locking recess comprises a sliding surface arranged for the holding / sliding member and this sliding surface comprises a second guide lug 30. , arranged to guide the holding member 13 up against the upper sliding surface by the surface being pivoted in the direction of the upper sliding surface 26. The second end position 16 is an instruction, which is basic with respect to the side facing the first end position and towards the sliding surface. The guide has a depth D in relation to the sliding surface 26, which depth is less than the transverse dimension H of the holding member 13. This transverse dimension is advantageously the same as the diameter of the holding member if the holding member has a circular cross-section. The instruction / the second end position 16 can in itself just as easily have side edges with a certain inclination instead of, as according to the figure, being in the form of an approximately semicircular arc. The opposite side in relation to the shallow edge, the side facing the guide surfaces 14, has a high edge which forms a "nose" or chin. The latch 11 also comprises a recess 27 for articulated attachment to the frame plate 9 and the operating member 18, arranged to operate the latch 11 by pressing it in the direction of the frame 5, the latch 11 being disengaged against the holding member 13, and the latching function being disengaged. 10 15 20 25 30 35 40 534 713 10 Figure 2c shows the holding member 13 in detail.

The holding member 13 is preferably a shoulder with collar 33 at its outer, free end. The holding member is fixedly arranged at its other end on the outer fitting arm 7, preferably on its lower half.

The transverse dimension H of the holding member is preferably larger than the depth D of the second end position, and furthermore the length of the holding member 13 must be slightly greater than the thickness of the latch 11, in order to allow the latch to grip the holding member 13.

Summary of the function according to the preferred embodiment With the arch 5 in the initial position, the closed position of the window, begins at opening, the outward movement of the arch in relation to the frame 1, after disengagement of the locking pin with the handle of the window (not shown). This begins the movement of the holding member 13 from the first end position 15 towards the second end position 16, the holding member sliding along either of the two sliding surfaces to then reach the second end position 16, which is the combined position for child lock and ventilation lock. During this outward movement, it is primarily the child lock that engages and since the lock 11 has a high shoulder side, a "nose" stops the movement of the holding member outwards and thus also the movement of the complete arch 5. Since the latch 11 is spring-loaded, via the spring 17. the latch strives to engage with the holding member 13, which thus occupies the second end position 16. A safe child lock function has thus been achieved because the movement of the arch 5 is now prevented from continuing its outward movement. The spring 17 improves the function and gives a clear snap sound at the correct locking position, but the locking function also works without the spring due to storage and control through the design of the locking recess. If it is desired to continue the outward movement of the arch 5 to open the window further, the latch 11 must be disengaged from the holding member 13 by means of the operating member 18, which is then pressed in the direction of the arch, whereby the latch can be lifted by the holding member and the arch can be pressed outwards.

If the movement of the arch 5 starts in the open position of the window where the arch is in a position completely outside the latch and the locking positions and then continues in the direction of the frame 1, until the fully closed position of the window, the following will occur in turn. The spring-loaded latch 11 is arranged in this position and in a position to automatically guide the holding member 13 into the locking recess 12, when the latch and holding means come into contact with each other. When the holding member 13 enters the locking recess 12, due to the spring 17, the latch 11 snaps down against the holding member 13 and engages the same and the holding member 13 thus remains in the second end position 16. If it is desired to continue the movement of the arch until the closed position is only to continue to apply the inward force to the bottom piece of the arch 5, the latch 11, at sufficient force, being lifted by the holding member 13. This becomes possible because the instruction, the second end position 16 is shallow at the side holding the force, as described above. According to the preferred embodiment, the capercaillie force is tensioned to a tested force for adaptation to an selectively sluggish abutment. Even without spring 17, the instruction itself gives a certain resistance. When the holding member 13 then leaves the second end position 16 and is moved in the direction of the first end position 15, the holding member 13 possibly passes one or ytterligare your basic instructions, (not shown in this embodiment), which then only function as supplementary ventilation positions. Then the guide lug 19 is passed, which ensures that a lifting of the latch 11 is started. During the continued movement of the holding member 13, the latch 11 is rotated towards its rest position to the nearest vertical position and finally the holding member 13 assumes the first end position 15. The rotational movement of the latch is effected by a combination of the control in the locking recess and in the later part of the rotary movement . the rounded outside 21 of the latch 11, which takes hold of the frame and helps to complete the rotational movement.

In the second end position 16, the combined position for child lock and ventilation, the ventilation function is active to the extent that either only via the instruction itself or in combination with the spring 17 there is a restraining force which impedes the movement of the frame 5 towards the frame 1. This force is adjustable with help the spring 17 and thanks to the fact that the instruction is shallow, the ventilation lock becomes automatically disengageable, only by overcoming the restraining force, unlike other solutions, which is a clearly user-friendly function. As previously indicated, it is quite possible, within the framework of the idea of recovery, to let the ventilation modes be fl era in number.

If for some reason the latch 11 would not be in the correct position when closing the window, for example due to dirt, so that the latch 11 jams, and the latch remains in an upright position, the holding means 13 will, during the closing movement of the arch 5, strike in a stop side 31 on the latch 11, below the opening to the locking recess 12 and then the window cannot be closed completely. In this way, it is indicated that the lock is not in full function, which in this way makes it self-regulating for the user to check that the child lock works. Thus, it becomes an extra security that points out that if the window can be closed, the child lock function works.

In the reverse position of the window, for example when window cleaning is to be performed, the functions are the same as above. An advantage is then that the spring 17, just as in the normal position, ensures that the latch 11 grips in principle directly when the holding member 13 enters the locking recess 12, which means that the reading takes place slightly before full rotation of the frame 5 to 180 degrees in relation to the closed position of the frame. . 10 15 20 1 = frame 2 = lower part of the frame 3 = upper part of the frame 4 = side parts of the frame 5 = arch 6 = pivot arm bracket 7 = outer fitting arm 8 = upper pivot arm 9 = pivot pin | 13 = retaining means 14 = guide surfaces 15 = first end position 16 = second end position 17 = spring 534 713 12 BASKET 18 18 actuating means 19 = first guide lug 20 = stop lug 21 = rounded side 22 = articulated attachment 23 = guide shoe 24 = groove 25 = articulation 2e = surface 27 = recess 28 = upper side of locking recess 29 = | lower side of recess 30 = second guide lug 31 = stop side 32 = area 33 = collar

Claims (17)

10 15 20 25 35 40 534 713 13 PATENT REQUIREMENTS Reading device for swingarm fittings for windows, doors, shutters and the like, where for example the window consists of a frame (1). with a lower part (2), an upper part (3) and two side parts (4) in which side parts an arch (5), for example a window arch, is pivotally suspended by means of two mirror-symmetrically equal forearm fittings (6), each comprising an outer fitting arm ( 7), the lower part of which is hingedly attached to the frame (5) near the center of the side parts of the frame and the upper part of the outer fitting arm (7) is hingedly attached to the upper end of an upper pivot arm (8), which pivot arm in its second, lower end is hingedly attached to the upper end of a frame plate (9) mounted in the frame, and at the lower end of the frame plate (9) the lower end of a lower pivot arm (10) is hingedly attached, and the upper end of the lower pivot arm (10) is hingedly attached to the upper part of the outer fitting arm (7), but below the attachment of the upper pivot arm (8) to the outer fitting arm (7). and further, the locking device comprises at least one latch (11) hingedly mounted in one frame plate (9), which latch comprises a locking recess (12) arranged to cooperate with a preferably perpendicular, towards the outer fitting arm (7) and its flat projecting holding means (13). ). and wherein the locking recess (12) comprises upper and lower guide surfaces (14) on both sides of the locking recess (12), arranged to guide the pouring member (13) into the locking recess, and that the locking recess comprises a first inner end position (15). closest to the hinged attachment (22) of the latch, for the resting position of the holding member (13). at the closed position of the window, and a second end position (16) for the pouring means (13), arranged to block the movement of the arch (5) both outwards and inwards relative to the frame (1). characterized in that the pouring member (13) is arranged on the outer fitting arm (7). Device according to claim 1, characterized in that the latch (11) locks between the frame plate (9) and the frame (5), in that the pouring member (13) is arranged on the frame (5). Device according to Claim 1 or 2, characterized in that the hinged attachment (22) of the catch (11) to the frame plate (9) is located between the attachments of the upper pivot arm (8) and the lower pivot arm (10) in the frame plate (9). Device according to Claim 3, characterized in that the articulated attachment (22) of the catch (11) is located closer to the attachment of the lower pivot arm (10) to the frame plate (9) than the attachment of the upper pivot arm (8) to the frame plate (9). Device according to any one of claims 1-4. characteristics! in that the position of the attachment point of the holding member (13) on the outer fitting arm (7) together with the design of the locking instruction of the second end position (16) is arranged so that the angle (d), located in the direction of force and between the tangent to the point of attack (F) , between the pouring means (13) and the groove side of the second end position (16), and a line between the center of the lock (11) and the holding means (13), is greater than 90 °, when the pouring means (13) is in the second end position (16). ) and closing of the arch (5) is started, which means that the closing force (F) always acts above the articulated attachment (22) of the catch (11). 10 15 20 25 30 35 40 534 713 14 Device according to one of Claims 1 to 5, characterized in that the recess depth (D) of the second end position (16) is smaller than the transverse dimension (H) of the holding member (13). Device according to one of Claims 1 to 6, characterized in that the second end position (16) has the shape of an open semicircle. Device according to one of Claims 1 to 7, characterized in that the locking device comprises a spring (17), which by means of clamped spring force is arranged to force the lock (11) towards its locking position relative to the holding member (13), the lock coming into engagement with the holding member ( 13). Device according to one of Claims 1 to 8, characterized in that the locking recess (12) of the latch comprises änd your end positions / groove positions arranged between the first end position (15) and the second end position (16). Device according to one of Claims 1 to 9, characterized in that! in that the latch (11) comprises an operating means (18), arranged to expose the latch (11) from the engagement with the holding means (13). Device according to one of Claims 1 to 10, characterized in that the locking recess (12) is arranged with a first guide lug (19) between the first end position (15) and the second end position (16), which first guide lug (19) is arranged to start the rotational movement of the latch (11) towards the rest position, i.e. the position of the holding member (13) in the first end position (15), when the holding member (13) is moved from the second end position (16) towards the first end position (15). = Device according to one of Claims 1 to 11, characterized in that the locking recess (12) comprises a second guide lug (30) between the first end position (15) and the lower one of the guide surfaces (14), which second guide lug (30) is arranged to control the rotation of the latch (11) when the holding means (13) is moved from the first end position (15) towards the second end position (16), so that the latch (11) engages the holding means (13) in the second end position (16) . Device according to one of Claims 1 to 12, characterized in that the catch (11) comprises a stop side (31), below the lower one of the guide surfaces (14), which stop side is arranged to prevent the arch (5) from occupying its fully closed position. against the frame 1 if the locking function has not been able to take effect due to the lock being stuck in its rest position for some reason, in an upright position, by the holding member (13) during the closing movement and with the lock (11) in this position hitting the stop side ( 31), the latch preventing the continued closing movement of the arch (5). Device according to one of Claims 1 to 13, characterized in that the locking recess (12) comprises an area (32) arranged between the first guide lug (19), the second guide lug (30) and the first end position (15), which area is coordinated with the size of the holding member (13) so that the holding member is insertable in this area, from the side, almost perpendicular to the surface of the latch (11). 10 15 534 713 15 Device according to one of Claims 1 to 14, characterized in that the holding means (13) at its outer, free end comprises a collar (33) which prevents the catch (11) from sliding off the holding means (13) in the direction away from the holding means. Device according to one of Claims 1 to 15, characterized in that the two mirror-symmetrically equal pivot arm fittings (6) each comprise at least one catch (11), arranged on the respective frame plate (9), and that the location of the respective catch (11) and cooperating holding means (13) are different on each frame plate (9), the total number of locking positions increasing. Device according to one of Claims 1 to 16, characterized in that the two mirror-symmetrically equal pivot arm fittings (6) each comprise at least one catch (11), arranged on the respective frame plate (9), and that the distance between the centers of rotation of the respective catch (11) and second locking position (16), are different on the lock of the respective frame plate (9), the total number of locking positions increasing.