SE535057C2 - Sliding brake at reversible windows, doors or shutters - Google Patents

Abstract

Slide brake (11) for turnable windows, doors or shutters, which windows, doors or shutters consists of a frame (1), with one lower part (2), one upper part (3) and two lateral parts (4). In those lateral parts a casement (5) for instance a window casement, is pivoting suspended by two mirror symmetrical equal swinging arm assemblies (6). The lateral parts (4) of the frame includes each at least one slide groove (7), in which a slipper (10) is provided to slide with a certain friction. This slipper (10) is in turn articulated attached to the upper element (8) of the window casement, via the upper assembly (9) on the respective short side of the upper element. The friction between the slipper (10) and its surrounding surfaces are larger in at least one subarea, in the slide groove (7), compared to the friction in other parts of the slide groove (7), by that the slide groove (7) in the subarea comprises a constriction, which brakes the slipper (10) in the subarea, whereby a continuously and automatically disengageable airing blocking device is obtained.

Description

25 30 535 05? form of ventilation barrier that prevents the window's unwanted closing or opening, when the same is exposed to, for example, wind pressure, negative pressure or transverse draft. There is also a risk of crushing damage if the window can close uncontrollably.

Known solutions of the above kind are, for example, SE 8902843-5 where a pivot arm fitting is provided with a child lock and a separate ventilation lock. The child lock then consists of a plate with a locking recess in the form of a guide groove and a nose, which nose guides a holding member in the form of a shoulder cut into the groove and the groove has a locking position for the rivet in the closed position of the window and a locking position for the window child safety. This solution has a separate ventilation lock in the form of a fold-out arm, which, usually in the child-locked position, folds out and is clamped between the window frame and the frame, whereby the window is prevented from being involuntarily closed. With the ventilation lock extended in combination with the child lock, the window is locked for movement both outwards and inwards in relation to the frame. The Norwegian NO 320116 builds on the Swedish patent's child safety, but differs from this in that instead of the separate fold-out arm, an extra deep groove has been inserted in the child lock in connection with the child safety position, whereby a fixed, locked position is obtained where the window is locked in both directions. In this way, both child restraint and ventilation lock have been obtained with one and the same detail.

The mentioned solutions but also other constructions of the above kind are, however, encumbered with several shortcomings and inconveniences. In one of the above-mentioned solutions, the ventilation lock consists of two details, locking arm together with child lock, which means that the ventilation lock does not work fully if the child lock is not active, the ventilation lock is at least partially dependent on the child lock. 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. None of these older solutions can be automatically disconnected regarding the ventilation mode but must be operated in one way or another before the ventilation function is switched off.

Another problem with existing latches is that they only offer a single fixed ventilation position, given the design, dimensions and location of the latch (s) and that this ventilation position is only offered with an opening that is less than or equal to the maximum opening dimension in the child lock position. Furthermore, these locks must therefore be operated in one way or another, in order to be disconnected, ie even when you want to close the window, the locks in these solutions must be manually disengaged before the window can be closed.

Description of the invention The present invention achieves the aim of solving the above problems in 10 15 20 25 30 35 535 05? the device of the type stated in the preamble of claim 1.

The ventilation mode in the present invention is in no way dependent on the child lock, which the older solutions are in one way or another. The complete construction includes a child lock, but it is completely disengaged from the air lock and the air function is achieved by a separate slide brake.

Reversible windows comprise, as described above, at least one sliding track or sliding guide arranged in the respective side frame. In each sliding groove, a sliding shoe is arranged to run, during the movement of the window between its closed and its inverted position, and the top piece of the window is thus controlled according to a nearly linear movement along the sliding groove, because the sliding shoe is hingedly attached to the top fittings. . Sliding shoe in older solutions is arranged to slide easily along the entire length of the sliding groove so that the window when opened and turned in all positions is easy to maneuver. In the present invention, the sliding shoe slides easily in predetermined portions, while the friction in at least one portion, a sub-area, is greater than in other parts of the sliding track. This is made possible by the sliding groove in the sub-area comprising a constriction, which in this way is local in the sub-area. Through this method, a braking force, an increased friction, arises between the sliding shoe and the sliding track, in this sub-area, which has the consequence that the movement of the sliding shoe is slowed down when the sliding shoe enters this sub-area. This results in a braked position for the window frame, a ventilation position and in that its top piece is hingedly connected to the sliding shoe. The local extension in the sub-area determines how sluggish the sliding shoe should run in the area. By adjusting the effect of the constriction on the cross section, the friction is selected so that it becomes sufficiently sluggish for the ventilation function, ie that the friction is able to keep the window in the selected position without wind forces and the like changing the position of the window frame, but still not too sluggish to maneuver it. when opening or closing. Overall, the function is such that at the opening of the window, i.e. for a distance initially at the opening of the arch, the movement is easy. due to the fact that the sliding track in this area does not involve any constriction, to then go sluggishly for a section. when the sliding shoe passes the constriction, and when the sliding shoe has then passed the constriction, the continued opening movement goes easily again. It should also be mentioned that somewhere during the opening movement, the child lock is arranged to come into force. The present invention has thus provided a stepless ventilation barrier, with a large number of ventilation positions obtained and where the ventilation barrier is automatically "disengaged", i.e. it is possible to close, or open the window frame more or less even though the ventilation barrier is active. Thus, as in previous solutions, it is not necessary to operate the ventilation lock in the ventilation mode to disengage it.

Furthermore, it is not limited to the ventilation positions being within the child lock's maximum limit for opening dimensions, which was previously the case.

According to a preferred embodiment of the invention, the sub-area, comprising the constriction, is placed along the sliding track in a selected and tested position, whereby the ventilation position occurs where it is desired that the function should take effect. According to the embodiment, this preferably occurs somewhat before the lock in the child lock function engages with the holding means arranged for the child lock, and the stepless ventilation position is then in operation preferably a bit past the child lock position. This means that the ventilation mode can be used before the child lock locks an additional opening option and if a larger opening for ventilation is desired, the child lock is released, and thus a further distance is available for any ventilation mode. Of course, the ventilation lock also works in the child-resistant position when the window frame is blocked for outward movement via the child lock and sluggishly movable for inward movement via the ventilation function. However, the invention does not limit the location of the sub-area with its narrowing, to that described above, but the location of the sub-area along the sliding track can be chosen to suit the application in question, within the scope of the invention. Thus, one is not limited to the ventilation mode can only take place within the child-locked maximum opening dimension, which is the case in previous solutions.

According to a preferred embodiment of the invention, the length of the subarea with its constriction is selected and tested, the braked, stepless ventilation position of the frame being active during as much of the movement of the window frame as desired for the application in question.

By determining the outer positions of the constriction along the sliding groove, the desired ventilation position is selected. Previous solutions present only one, fixed ventilation mode, which is not selectable. In addition, the ventilation barrier in the older solutions must be disengaged, which is not needed in the present invention.

According to a further embodiment, the friction in the sub-area is increased by arranging a sliding brake in connection with the sliding groove, which sliding brake acts on the cross section of the sliding groove, whereby a local narrowing is obtained. Either the sliding brake can be mounted so that it is the sliding brake that directly encroaches on the cross section and thus comes into contact with the sliding shoe at the passage, alternatively that the sliding brake affects a sliding rail arranged in the sliding gate so that, by the sliding brake's effect, the passage of the sliding shoe is made more difficult by the narrowing of the sliding rail in the subarea. According to the preferred embodiment, the sliding groove comprises this sliding rail of plastic or similar suitable material and preferably the sliding brake is fitted against the opposite wall of the sliding rail and thus the increased friction occurs in the area in the contact between the sliding shoe and the sliding rail wall. By mounting the sliding brake in an adapted position, transversely in relation to the sliding groove and the sliding rail, the friction in the sub-area is determined, whereby the desired braking force is obtained in the sub-area, and thus a well-balanced resistance force in the ventilation position. Through this, a stepless ventilation barrier has been achieved. According to a further preferred embodiment, the sliding brake is displaceable transversely in relation to the extent of the sliding groove, and thus the friction is adjustable in the sub-area.

The sliding brake acts on the cross section of the sliding groove and by displacing the sliding brake, mainly transversely in the direction of or from the sliding groove, the cross section for the passage of the sliding shoe is increased or decreased and a reduced or increased friction / braking force is obtained in the subarea. Older solutions do not offer similar adjustable arrangements at all, but are only completely locked and must also be disengaged manually.

According to a further embodiment, the sliding brake has an L-shaped cross section, an angular shape, i.e. two legs with an intermediate angle of preferably 90 ° and preferably the sliding brake is a sheet metal or plastic part. The first leg of the sliding brake is arranged to act on the cross section of the sliding groove, the sliding brake interfering with the possible passage of the sliding shoe in the sub-area - a local constriction is obtained, and the second leg comprises recesses or fls arranged for mounting the angular part against the side parts of the frame. Either the sliding brake can be mounted so that it is the sliding brake that directly encroaches on the cross section and thus comes into contact with the sliding shoe at the passage, or alternatively that the sliding brake is fitted between the sliding groove and the sliding rail arranged in the sliding groove. According to the preferred embodiment, the sliding groove comprises a sliding rail of plastic or similar suitable material and preferably the first leg of the sliding brake fits between one wall of the sliding groove and the opposite wall of the sliding rail and thus the increased friction occurs in the contact between sliding shoe and sliding rail wall. By mounting the sliding brake in an adapted position, transversely in relation to the sliding groove, the friction in the sub-area is determined, whereby the desired braking force is obtained in the idle area, and thus a well-balanced resistance force in the ventilation position. Alternatively, of course, the thickness of the first leg, which affects the cross-section of the sliding groove. adjusted so that the same result is obtained. As a result, a stepless ventilation barrier has been created, which is also simple and possible to assemble afterwards to complete an inconvenient installation, without the window construction necessarily being prepared for this function. This is very difficult in older solutions. In a preferred embodiment, the sliding brake is displaceable transversely in relation to the extent of the sliding groove, and thus the friction adjustable sub-area, in that the sliding brake comprises one or more recesses, which are inclined and preferably oval. By coordinating these recesses with the fastening devices used for attaching the sliding brake to the frame, an opportunity is obtained to displace the sliding brake slightly in the extension direction of the sliding groove, upwards towards the upper part of the frame or downwards towards the lower part of the frame, the sliding brake or from the sliding groove, thanks to the inclined recesses, whereby the cross-section of the passage of the sliding shoe is increased or decreased with a reduced or increased friction / braking force as a result. Thus, a stepless and automatically detachable ventilation lock has been provided, which also has adjustable friction. Older solutions do not offer any adjustable alternatives, while the present invention is adjustable, both in the adjustment of the braking force initially in connection with delivery or installation, and also at a later stage if a need or desire for adjusted braking force arises.

According to a further preferred embodiment, the sliding brake is displaceable transversely in relation to the extent of the sliding groove, and thus the frictional force is adjustable in the subarea, in that the sliding brake comprises one or more recesses, which are preferably coordinated with one or more eccentric devices. . By turning the eccentric devices, a displacement of the sliding brake will take place, mainly transversely in the direction towards or from the sliding groove, whereby the cross-section for the passage of the sliding shoe is increased or decreased, whereby a reduced or increased friction / braking force is obtained.

Hereby a stepless and automatically detachable ventilation barrier has been obtained where the same advantages as described above in relation to older solutions are achieved.

In a further preferred embodiment, the sliding brake comprises, in whole or in part, a flexible material, preferably rubber. When the slide brake is arranged, preferably in a recess, next to the slide gate, the slide brake has more or less or no effect at all on the cross section of the slide gate, by allowing the slide brake to expand, as a result of the slide brake being compressed.

Because the location of the slide brake and thus its fixed position next to the slide rail has been tested for a reasonably large braking force. means further expansion to the sliding brake. against the slide gate arranged, the side further affects / encroaches on the cross section of the slide gate, which means that the local constriction increases in the sub-area. The sliding brake is preferably compressed in that fastening devices, which firmly arrange the sliding brake against the frame, comprise cantilevered portions which are arranged to press against the sliding brake in the direction of the frame, so that the sliding brake expands corresponding to how hard the fastening devices are arranged against the frame. Preferably, the sliding brake comprises at least one recess, through which recess, preferably a screw, is inserted, and this screw is screwed into the frame to fasten the sliding brake to the frame. Because the screw comprises a cantilevered part, preferably a screw head, which is large enough to press on the edges of the recess, the sliding brake expands, due to its elasticity, under the influence of the pressing force from the screw head, and the harder the screw is applied to the frame, the more expands. the sliding brake. In this way, the effect of the sliding brake on the cross section of the sliding groove in the subarea becomes adjustable, whereby the friction increases or decreases, depending on the degree of expansion of the sliding brake. The sliding brake can either be arranged so that it comes into direct contact with the sliding shoe, when the sliding shoe passes in the sliding groove, the adjustable braking force occurring between sliding shoe and sliding brake, alternatively the sliding brake can be fitted to the aforementioned sliding rail. the expansion of the sliding brake, and the adjustable braking force then arises between the sliding shoe and the wall of the sliding rail in the sub-area. The number of recesses in the sliding brake is not limited to only one, but preferably the recesses are fl in number, whereby an increased flexibility is obtained. Thereby an adjustable braking force is provided in the device according to the embodiments, which is lacking in older solutions and a stepless and automatically disengageable ventilation barrier is thereby obtained. In a further preferred embodiment, the sliding brake comprises two parts, a thin-walled housing with preferably wedge-shaped side walls, and a wedge-shaped core, which core is slidably arranged in the housing. When the complete sliding brake is arranged, preferably in a recess, next to the sliding groove, the sliding brake has more or less or no effect at all on the cross section of the sliding groove, by allowing the sliding brake to expand to different degrees in the direction of the sliding groove. When the sliding brake encroaches on the cross section of the track, in the sub-area, the available passage for the sliding shoe, which is thus braked in the sub-area, decreases. The sliding brake can either be arranged so that it comes into direct contact with the sliding shoe, when the sliding shoe passes in the sliding groove, whereby the adjustable braking force arises between sliding shoe and sliding brake, alternatively the sliding brake can be fitted to the aforementioned sliding rail. the expansion of the sliding brake, and the adjustable braking force then arises between the sliding shoe and the wall of the sliding rail in the sub-area. The wedge-shaped core comprises continuous recesses, which are preferably used in the attachment of the sliding brake to the side parts of the frame, in that fastening devices, for example screws, are inserted through the recess (s), and then screwed into the frame. As a result, the sliding brake is fixedly mounted against the frame in a preferably tested position. Because the wedge-shaped core is slidably arranged in the housing, in the direction in / out of the frame in the mounted position of the sliding brake, the walls of the core affect the surrounding thin and wedge-shaped walls of the housing. different depending on the position of the core in the housing. Depending on how deep the core is screwed into the housing, the thin, wedge-shaped walls of the housing are pushed out, more and more the deeper the core is screwed into the housing, towards the frame, due to the wedge-shaped cross-section of the core, and thus the slide brake expands more and more . The friction in the sub-area thereby becomes adjustable, since the position on the core is adjustable.

Because the position of the sliding brake and thus its fixed position next to the sliding rail is tested for a reasonably large braking force, further expansion means that the side of the sliding brake, against the sliding groove, further affects / intrudes on the sliding track cross section, which increases the local constriction also the friction. Conversely, the friction in the sub-area decreases with reduced expansion. This provides an adjustable ventilation barrier in the device according to the embodiments, which is lacking in older solutions and a stepless and automatically disengageable ventilation barrier is thereby obtained.

In a preferred embodiment, the first leg of the sliding brake has a conical cross-section and the sliding brake is also slidably arranged in the inward and / or outward direction relative to the side parts of the frame. Because the sliding brake is displaced, for example inwards towards the frame, and where the cross-section of the first leg has a pointed shape, i.e. the leg is widest near the base and narrowest at its outer end, the first leg then affects more and more the cross-section of the sliding track. say takes up more space in the sliding track, and thus increases the friction in the sub-area. Conversely, with this device method, the friction decreases in the event that the sliding brake is displaced outwards relative to the frame. The first leg can be fitted either directly in the sliding groove or between one wall of the sliding groove and the corresponding wall of the sliding channel.

Thereby an adjustable braking force is obtained in the device according to the embodiment, which is lacking in older solutions. Of course, the design / conicity of the cross section can be the reverse, whereby the function described above is reversed, when moving towards and from the frame.

In a preferred embodiment of the invention, the sliding brake comprises a toothed side, which faces the sliding groove. Correspondingly, the sliding shoe according to this embodiment also comprises a toothed side, which in turn faces the sliding brake. Since the sliding brake is arranged at the sliding gate, in a tested position, the two teeth will cooperate and grip each other, when the sliding shoe passes the sliding brake, whereby a tested and increased friction occurs in the sub-area including the sliding brake, relative to the friction in other areas. Preferably, the sliding brake in this case is an L-shaped, angular detail in plastic or sheet metal, according to the previous embodiment, where the first leg, which is arranged to act on the cross section of the sliding groove in the sub-area of the sliding brake, is provided with the toothing. In any case and according to the preferred embodiment, the sliding pair comprises a sliding rail and then the first leg fits into the sliding rail itself, so that the sliding shoe with its toothing and the first leg with its toothing, come into contact with each other and the friction thus increases in the subarea to other areas. A stepless and automatic ventilation lock has thus been obtained.

Brief description of the fi gures in detail represents in diametrical, partly schematic cross-sections or perspective views: - Fig. 1a shows a section through the upper part of a frame construction with swing arm fittings comprising an example of a sliding brake. 10 15 20 '25 35 535 057 - Fig. 1b shows a partial view of the position of the sliding brake in connection with the sliding groove and the top fitting.

Fig. 2a shows a section through the upper part of a frame construction with swingarm fittings comprising an example of a sliding brake.

Fig. 2b shows a detail view with a sliding brake, arranged at the sliding gate, and the top fitting with its articulated attachment to the sliding shoe.

Fig. 2c shows a section through the right side part of the frame, the sliding track, the sliding rail, the sliding shoe and the sliding brake and the top bracket.

Fig. 2d shows an enlargement of the position of the sliding brake between the sliding rail and the sliding track.

Fig. 3a-d show an embodiment of the sliding brake, with fls for attachment to the side parts of the frame.

Fig. 4a-d show an alternative embodiment of the sliding brake, with fls for attachment to the side parts of the frame.

Figs. 5a-d show an embodiment of the sliding brake, with inclined recesses for fastening and adjustable friction.

Figs. 5e-g show an embodiment of the sliding brake, with eccentric device for adjustable friction.

Figs. 6a-c show an embodiment of the sliding brake, comprising an elastic material, which means that adjustable friction is obtained.

Figs. 7a-d show an embodiment of the sliding brake, comprising two parts, a housing and a wedge-shaped core slidably arranged in the housing, which co-operate for adjustable friction.

Figs. 8a-b show an embodiment of the sliding brake and sliding shoe, where these two parts comprise cooperating toothed sides for adjustable friction.

The constructive design of the present invention is described by the following detailed description of embodiments of the invention with reference to the accompanying figures 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 figures Fig. 1a shows a section through the upper part of a frame 1 which comprises a lower part 2 (not shown), an upper part 3 and two side parts 4. complete 6 which on each side of the frame are hingedly attached to the side parts of the frame. At the respective end of the top piece 8 of the frame 8, a top fitting 9 is arranged, which top fitting is hingedly attached to a sliding shoe 10. The sliding shoe 10 is arranged to run in a sliding groove 7, which sliding groove is preferably a milled groove in the side parts 4 of the frame, the right and the left side part, respectively. The sliding groove 7 comprises a sliding rail 12, preferably of plastic, which is arranged in the sliding groove 7. At - the upper part of the sliding groove 7, at a distance from the upper part of the jug, an L-shaped sliding brake 11 is arranged, which sliding brake by its first leg 13 limits the cross section along the length of the leg, whereby a narrowing occurs in the subarea. When the lower part of the frame 5 is moved outwards or inwards relative to the core 1, the top piece 8 of the frame follows a linear movement along the sliding grooves 7 due to the guide of the top piece 8 by means of the top fittings 9 and the articulated slides 10 in each side part. sliding shoe 10 is located above the sliding brake 11, the sliding shoe 10 runs easily, as the friction between the sliding shoe 10 and the sliding rail 12 in this area is low. When the sliding shoe then enters the sub-area, in which the sliding brake 11 is arranged, the friction between the sliding shoe 10 and the sliding rail 12 increases, due to the sliding brake acting on the cross section in the sub-area so that it decreases. When the sliding brake 11 is passed, the friction is low again and the sliding shoe runs easily. The friction in the idle range is selected so that the ventilation function becomes the desired, i.e. intended inertia is achieved, the arch remaining in the selected ventilation position, but still disconnectable by the arch 5, by hand force for fl being extended outwards or inwards towards the frame 1.

Fig. 1b shows an enlargement of the upper part of one side part 4 of the frame 1, more precisely the right side part with an example of the sliding brake 11 arranged at the sliding groove 7, and the top fitting 9, which is articulated to the sliding shoe 10. To minimize wear on The sliding shoe 10, in its passage at the sliding brake 11, preferably fits the first leg 13 of the sliding brake 11 between one side wall of the sliding rail 12 and the corresponding side wall of the sliding groove 7, whereby a sharp edge against the first leg 13 of the sliding brake 11 is avoided.

The second leg 14 of the sliding brake 11 is arranged to be mounted against the side part 4 of the frame with some form of fastening device 20, for example screw 26 or the like.

Figs. 2a-b show the upper part of the frame 1 with a section through the upper part 3 of the frame, and further the right side part 4 of the frame 1 in which the sliding groove 7, with its sliding rail 12, is arranged.

Figure 2b shows an enlargement of the area around the sliding brake 11. At a smaller distance from the upper part 3 of the frame and in connection with the sliding groove, the sliding brake 11 is fixedly arranged against the side part 4 of the frame. has an unbraked distance before the sliding brake 11 brakes the movement. The length of the sliding brake 11 is adapted so that the braking length of the subarea with the increased friction, it is intended, whereby the outward or inward movement of the arch 5 is thereby braked and the stepless ventilation function is thus active and of the desired length. Furthermore, the upper part of the pivot arm fitting 6 and the top fitting 9, which is hingedly attached to the sliding shoe 10, are shown. is reasonably easy for maneuvering the arch 5 between its closed and inverted position, except in the selected sub-area, where the sliding brake 11 is arranged. In this sub-area, the slide rail 12 is compressed somewhat due to the fact that the slide brake 11 according to the embodiment is designed as an L-shaped slide brake, the first leg 13 of which is fitted between one side wall of the slide track 7 and the corresponding side wall of the slide rail 12.

Furthermore, the second leg 14 is arranged with slightly inclined and elongate recesses 19 in which fastening devices, for example screw 26, are arranged for the fixed device of the sliding brake against the side part 4 of the frame. along the side part 4 of the frame, whereby the sliding brake is simultaneously moved transversely in the direction towards or from the extent of the sliding rafter 7. The first leg 13 of the sliding brake 11 then presses, more or less depending on how the sliding brake is displaced, against the wall of the sliding rail 12, whereby the available cross section for the passage of the sliding shoe 10 changes and thus the friction in the area changes.

Figs. 2c-d show a section A-A through the right side part 4 of the frame, the sliding brake 11 and the sliding shoe 10 and a detailed view of the sliding groove 7, comprising the sliding rail 12, and the position of the sliding brake 11 between these parts. Furthermore, the top fitting 9 and its articulated attachment to the sliding shoe 10 are shown.

In the embodiment shown, an L-shaped sliding brake 11 is arranged, which sliding brake, through its first leg 13, acts locally on the cross-section in this sub-area, whereby a constriction arises. The fastening device in the example shown in the embodiment is screws 26, which firmly arrange the sliding brake 11 against the side part 4 of the frame. The first leg 13 of the sliding brake 11 is fitted between one side wall of the sliding groove 7 and one wall , against the wall of the slide rail 12, whereby the available cross section for the passage of the slide shoe 10 changes and thus the friction in the area changes.

Figs. D-d show an embodiment of the sliding brake 11, arranged at the sliding groove 7. In this embodiment, the sliding brake 11 is an angular plate or plastic part, comprising the two legs 13, 14, preferably at an angle of about 90 degrees between the legs. The first leg 13 is arranged, preferably between one wall of the slide rail 12 and the corresponding wall of the slide groove 7, and the second leg 14 is formed with folded tabs 27 which are arranged for anchoring the slide brake 11 against the side part 4 of the frame. side part 4 whereby the sliding brake 11 is fixedly mounted in the position along and in relation to the sliding groove 7 desired for the current application, and this position is, as previously described, selectable both with respect to the longitudinal 10 15 20 25 30 35 535 05? 12 the location along the sliding track 7 and the transverse placement towards the sliding track 7 so that the desired friction is obtained. By fitting the first leg 13 between one wall of the slide rail 12 and the corresponding wall of the slide track 7, the available dimension for the passage of the slide shoe 10 is limited and thus the friction between the slide shoe 10 and the slide rail 12 increases.

The length of the sliding brake 11 is selectable according to the inventive idea, in order to enable individual choices of the size of the ventilation position.

Figs. 4a-d show an embodiment of the sliding brake 11, arranged at the sliding groove 7. According to the embodiment, the sliding brake 11 is an angular plate or plastic part, comprising the two legs 13, 14, preferably at an angle of about 90 degrees between the legs. The first leg 13 is arranged, preferably between one wall of the sliding rail 12 and the corresponding wall of the sliding groove 7, and the second leg 14 comprises the spokes 27 which are arranged for the sliding brake 11 to be anchored against the side part 4 of the frame. more precisely in one side wall of the sliding groove 7, whereby the sliding brake 11 is fixedly mounted in the position along and in relation to the sliding groove 7 which is desired for the current application. This position is, as previously described, selectable both with respect to the longitudinal position along the sliding groove 7 and the transverse position towards the sliding groove 7 so that the desired friction is obtained. The first leg 13 preferably has tapered and bevelled ends 28 to achieve a smoother transition between the unaffected sub-area of the slide rail 12 and the sub-area in which the slide brake 11 is arranged and which thus comprises the constriction. By fitting the first leg 13 between one wall of the slide rail 12 and the corresponding wall of the slide track 7, the slide rail 12 is thus compressed slightly and the available dimension for the passage of the slide shoe 10 is reduced and thus the friction between the slide shoe 10 and the slide rail 12 is increased. the inventive concept is selectable, to enable individual choices of the size of the ventilation mode. In addition, of course, the thickness of the first leg 13 according to the inventive idea is selectable, whereby the friction is adapted to become the one desired for the application.

Figs. Sa-d show an embodiment of the sliding brake 11, arranged at the sliding groove 7. Also in this embodiment, the sliding brake 11 is an angular plate or plastic part, comprising the two legs 13, 14, preferably at an angle of about 90 degrees between the legs. The first leg 13 is arranged, preferably between one wall of the slide rail 12 and the corresponding wall of the slide groove 7, and the second leg 14 comprises the slightly inclined, elongate recesses 19 which are arranged for fastening devices of conventional type, for example screw 26 or the like. The sliding brake 11 is preferably screwed to the side parts 4 of the frame in the position along and in relation to the sliding groove 7 desired for the current application, and this position is, as previously described, selectable both with respect to the longitudinal position along 535 20? 13 the sliding groove and the transverse position towards the sliding groove 7 so that the desired friction is obtained.

From this starting position the frictional force is then adjustable in the subarea at the sliding brake 11, by releasing something on the fastening devices, the screws 26, and then knocking, pushing or otherwise acting on the sliding brake 11, upwards or downwards along the side part 4 of the frame, the sliding brake 11 to be moved in the direction of or from the slide rail 12, due to the recesses 19 being inclined, whereby the slide rail 12 is compressed slightly and the available dimension for the passage of the slide shoe 10 is reduced, thereby increasing the friction between the slide shoe 10 and the slide rail 12. . After the friction / braking force has been set as desired, the sliding brake is screwed back against the side part 4 of the frame.

Figures 5e-g show an embodiment similar to that described in Figures 5a-d. Also in this embodiment, the sliding brake 11 is an angular plate or plastic part, comprising the two legs, 13, 14, preferably at an angle of about 90 degrees between the legs. The first leg 13 is arranged, preferably between one wall of the slide rail 12 and the corresponding wall of the slide bar 7, and the second leg 14 comprises recesses 15 which are arranged for eccentric devices 16, not further described. Through these eccentric devices or alternatively through other recesses 29, specially arranged for anchoring the sliding brake, the sliding brake 11 is screwed against the side parts 4 of the frame in the position along and in relation to the sliding groove 7 desired for the current application. This mode is as previously described. selectable both with respect to the longitudinal position along the sliding track and the transverse position towards the sliding track 7 so that the desired friction is obtained. Because the eccentric devices 16 are rotatable and eccentric, the sliding brake 11, upon rotation of the eccentrics, will be moved in the direction of or away from the sliding rail 12, whereby the sliding rail is compressed slightly and the available dimension for sliding shoe 10 is reduced. the sliding channel 12 - an adjustable friction has thus been obtained.

The length of the sliding brake 11 is selectable according to the inventive idea, in order to enable individual choices of the size of the ventilation position.

Figs. 6a-c show an embodiment of the sliding brake 11, where this wholly or partly comprises a flexible material, preferably rubber. According to this embodiment, the sliding brake is arranged in a recess in the side part 4 of the frame, preferably a milled groove 18. with an open side against the sliding groove 7 and the sliding rail 12. The sliding brake 11 also comprises a number of recesses 17, arranged for carrying a screw 26 per recess for the attachment of the sliding brake 11 to the side parts 4 of the frame. in the sub-area with the sliding brake 11, whereby the braking function in the ventilation lock is obtained. During assembly, the screws 26 are tightened with an adapted force and in coordination with the location, this allows the reasonably large braking force. The frictional force becomes adjustable by the screws 26 being tightened harder against the side parts 4 of the frame, the screw heads pressing against the flat surfaces 25 of the sliding brake 11, which surround the recesses 17, so that the sliding brake expands due to the pressing force. Thus, the sliding brake 11 expands out into the sliding groove 7, alternatively towards the sliding rail 12, whereby a constriction is formed along the sliding brake 11 and the available passage for sliding shoe 10 decreases and thus the friction between sliding shoe and surrounding parts increases - an adjustable friction has thus been obtained .

Figures 1a-d show an embodiment of the sliding brake 11, where this comprises two parts. a thin-walled housing 21 and a kit-shaped core 22, which core 22 is slidably arranged in the housing 21. The sliding brake 11 is arranged in a preferably milled groove 18, next to the sliding groove 7, with an open side towards the sliding groove 7 and the sliding rail 12. the sliding brake more or less or not at all on the cross section of the sliding groove 7, by allowing the sliding brake 11 to expand to different degrees in the direction of the sliding track 7. When the sliding brake encroaches on the cross section of the sliding groove 7, sub-area. According to the embodiment, the sliding brake 11 is fitted against the sliding rail 12, which is compressed in the sub-area under the influence of the expansion of the sliding brake 11, and the adjustable braking force then arises between the sliding shoe 10 and the wall of the sliding rail 12 in the sub-area. The wedge-shaped core 22 comprises continuous recesses 24, which are used in the attachment of the sliding brake 11 to the side parts 4 of the frame, by means of fastening devices, for example screw 26; is inserted through the recess / recesses 24, and then screwed into the side part 4 of the frame. As a result, the sliding brake 11 is fixedly arranged against the frame 1 in a preferably tested position. Because the wedge-shaped core 22 is slidably arranged in the housing 21, in the direction towards / out of the frame 1 mounted position of the slide brake 11, the walls of the core 22 affect the surrounding thin and wedge-shaped side walls 23 of the housing 21 to different degrees depending on the position of the core 22 in the housing 21. Depending on how deep the core 22 is screwed into the housing 21, the thin and wedge-shaped side walls 23 of the housing are pushed out, more and more the deeper the core 22 is screwed into the housing 21, in the direction of the frame 1, and thus the sliding brake 11 expands more and more . The friction in the sub-area thereby becomes adjustable, since the position on the core 22 is adjustable. Because the location of the sliding brake 11 and thus its fixed position next to the sliding rail 12 is tested for reasonably large braking force, further expansion means that the side of the sliding brake 11 further influences / interferes with the cross section of the sliding groove 7, which increases the local constriction the friction. Conversely, the friction in the sub-area decreases with reduced expansion. This provides an adjustable ventilation lock in 10 15 535 05? The device according to the embodiment.

Figs. 8a-b show an embodiment of the sliding brake 11, where it comprises a toothed side 30, which faces the sliding groove 7. Correspondingly, the sliding shoe 10 preferably also comprises a toothed side 31, which in turn faces the sliding brake 11. Since the sliding brake 11 is arranged at the sliding groove 7, in a tested position, the two teeth 30, 31 will cooperate and grip each other, when the sliding shoe 10 passes the sliding brake 11, whereby a tested and increased friction occurs in the area where the sliding brake 11 is mounted, in relation to the friction in other areas. Preferably, the sliding brake according to this embodiment is an L-shaped angular detail in plastic or sheet metal, where the first leg 13, which is arranged to act on the cross section of the sliding groove 7, comprises the toothing 30. According to the preferred embodiment, the sliding groove 7 comprises a sliding rail 12 and then the first leg 13 is fitted in the slide rail 12 itself, so that the slide shoe 10 with its toothing 31 and the first leg 13 with its toothing 30, come into contact with each other and the friction thus increases in the sub-area in relation to other areas. Furthermore, the second leg 14 of the sliding brake 11 also comprises eccentric devices 16, in accordance with the previously described embodiment, wherein the position of the sliding brake 11, transverse to the sliding groove 7, is optionally determined, so that the desired friction is obtained. 535 057 10 15 20 16 PARTS LIST 1 = frame 21 = housing 2 = lower part of the frame 22 = core 3 = upper part of the frame 4 = side parts of the frame 5 = frame 6 = swivel arm bracket complete 7 = guide groove 8 = top piece of the frame 9 = top bracket 10 = g | id shoe 11 = slide brake 12 = g | id rail 13 = first sideboard! 14 = second leg 15 = recess 16 = eccentric device 1 7 = recess 18 = groove 19 = recess 20 = fastening device 23 = side walls of the housing 24 = recess 25 = flat surface 26 = screw 27 = fl ik 28 = bevelled end 29 = recess 30 = serrated side , sliding brake 31 = toothed side, sliding shoe

Claims (12)

10 15 20 25 30 35 535 G57 17 PATENT REQUIREMENTS Device for reversible windows, doors and shutters, which windows, doors and shutters consist 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 frame, is pivotally suspended by means of two mirror-symmetrically equal pivot arm fittings (6), and where the side parts (4) of the frame each comprise at least one sliding groove (7), and where the top piece (8) of the frame comprises a top fitting (9) at each short side ), which respective top fitting is hingedly attached to a sliding shoe (10), which respective sliding shoe is arranged to, with a certain friction, run in the sliding groove (7), characterized in that the friction is greater in at least a sub-area, in the sliding groove (7) , compared with the friction in other parts of the sliding groove (7), in that the sliding groove (7) in the sub-area comprises a constriction. Device according to claim 1, characterized in that the location of the sub-area, with its constriction, along the sliding groove (7) is selectable, wherein the braked, partially open position of the arch, its ventilation position, occurs in a desired opening area. Device according to Claim 1 or 2, characterized in that the length of the sub-area, with its constriction, is selectable, the outer positions of the braked, partially open position of the arch (5), its ventilation position, being thereby selectable. Device according to one of Claims 1 to 3, characterized in that the constriction of the sliding groove (7) comprises a sliding brake (11) which is arranged in connection with the sliding groove (7), and which sliding brake (11) acts on the cross section of the sliding groove (7). whereby the constriction is obtained. Device according to claim 4, characterized in that the friction is adjustable in the sub-area, in that the sliding brake (11) is displaceable substantially transversely in relation to the extent of the sliding groove (7), and thus acts on the cross section of the sliding groove (7), whereby the narrowing of the sliding groove cross section in the subarea increases or decreases. Device according to one of Claims 4 to 5, characterized in that the sliding brake (11) comprises a first leg (13), arranged to act on the cross section of the sliding groove (7), and a second leg (14), arranged to be fastened to the side part of the frame. (4), and where these legs (13, 14) form an L-shaped cross section with an intermediate angle of preferably 90 °. Device according to one of Claims 4 to 6, characterized in that the friction is adjustable in the subarea, in that the sliding brake (11) comprises at least one recess (19), which recess (s) are coordinated with at least one fastening device (20) for anchoring the sliding brake ( 11) towards the side part (4) of the frame 10, and which recess (s) are inclined and longitudinally narrow, and by displacing the sliding brake (11) in the direction of extension of the sliding groove (7), upwards towards the upper part (3) of the frame ), or downwards towards the lower part (2) of the frame, at the same time the sliding brake (11) is displaced transversely towards or from the sliding groove (7), due to the inclined recesses (19) and thus the sliding brake (11) acts on the sliding groove (7). ) cross-section, whereby the constriction of the sliding groove cross-section in the subarea increases or decreases. Device according to one of Claims 4 to 6, characterized in that the friction is adjustable in the subarea, in that the sliding brake (11) comprises at least one recess (15). which recess (s) is coordinated with at least one eccentric device (16), which is preferably used for anchoring the sliding brake (11) against the side part (4) of the frame, and which eccentric device (16) is arranged to displace the sliding brake (11) transversely relative to the extent of the sliding groove (7) when operating said eccentric device, and thus the sliding brake (11) acts on the cross section of the sliding groove (7), whereby the narrowing of the sliding groove cross section in the subarea increases or decreases. Device according to claim 4, characterized in that the friction is adjustable in the sub-area, in that the sliding brake (11) comprises an excipient material, preferably rubber, and in that the sliding brake is arranged to be compressed to an optional degree, in that the sliding brake (11) comprises recesses (17). ), through which recesses fastening devices for fastening the sliding brake (11) to the side parts (4) of the jug are insertable, and that the fastening devices are preferably screws (26), the cantilevered top part of which is pressed onto the flat surface (25) of the sliding brake, at the recessed edges (17), wherein the sliding brake (11) expands, more or less due to the pressing force, and thereby acts on the cross section of the sliding groove (7), whereby the narrowing of the cross section of the sliding groove in the subarea increases or decreases. Device according to claim 4, characterized in that the friction is adjustable in the sub-area, in that the sliding brake (11) comprises two parts, a housing (21) and a wedge-shaped core (22) arranged in the housing, and that the side walls (23) of the housing are resilient, preferably thin-walled and wedge-shaped, and that the core (22) comprises recesses (24), which recesses are preferably arranged for attachment of the sliding brake (11) to the side parts (4) of the core, and that the core (22) is slidably arranged in the housing ( 21), and when the core (22) is moved in the housing (21), inwards or outwards relative to the side parts (4) of the frame, the sliding brake (11) expands transversely relative to the sliding groove (7), more or less due to the core (22) position in the housing (21), and thus the sliding brake (11) acts on the cross section of the sliding groove (7), whereby the constriction of the cross section of the sliding groove in the subarea increases or decreases. 10 15 535 057 19 Device according to one of Claims 4 or 6, characterized in that the friction is adjustable in the subarea, in that the first leg (13) of the sliding brake (11) has a conical cross section and that the sliding brake is displaceable in the direction in and out in relation to the side parts of the frame. (4), and thus the first leg (13) acts on the cross section of the sliding groove (7) more or less depending on the position of the first leg (13), whereby the narrowing of the cross section of the sliding groove in the subarea increases or decreases. Device according to one of Claims 4 or 6, characterized in that the sliding brake (1 1) comprises a toothing (30) at the side facing the sliding groove (7), and that the corresponding side of the sliding shoe (10), which side faces the sliding brake (11), comprises a toothing (31), which toothing (31) is arranged to cooperate with the toothing (30) of the sliding brake (11), whereby the friction is greater in the sub-area, in the sliding groove (7), compared with the friction in other parts of the sliding groove (7).