GB2170549A - Door or window structure with auxiliary fastenings o - Google Patents

Abstract

Each auxiliary fastening (12) comprises on leaf (2) an operating member (23), which is mounted on an operating bar (25) by means of a pin (28) and which has a rib (43) projecting slidably in a vertical groove (29) in cover lath (26), and a fastening member (24), which is pivotably mounted by means of a pin (38) on the operating bar (25) and which has a rib (40) entering together with pin (38) in a curved groove (39) in cover lath (26). When leaf (2) is shut, the operating member (23) cooperates with a stop (21) on frame (1) and is thereby moved upwards. The fastening member (24) is moved upwards but also swings and hooks thereby behind a stop (22) on frame (1). On opening the leaf the operating member (23), bar (25) and fastening member (24) fall under gravity. <IMAGE>

Description

SPECIFICATION Door or window structure with a multipoint closure and auxiliary closure used thereby This invention relates to a door or window structure with a multi-point closure, which structure comprises a fixed frame and a swingable leaf, and which multi-point closure comprises a main closure which comprises in turn an operatable main lock mechanism with at least one bolt, which mechanism is mounted on the leaf, and a lock plate cooperating with said main lock mechanism, which lock plate is mounted on the fixed frame, which multi-point closure further comprises at least one auxiliary closure working independently from the main closure, which auxiliary closure. is automatically activated when closing the leaf and which can close the leaf at a distance from the main closure, which auxiliary closure comprises an operating bar which is slidably mounted on- an upstanding edge from one of those elements formed by the leaf and the fixed frame, a cover lath which is mounted on the outer side over the slidable operating bar on said edge, an operating member which is connected adjacent the main closure, to the operating bar and is so mounted on the outer side of the cover lath as to be movable relative thereto, a stop mounted on the other one from those elements formed by the leaf and the fixed frame, with which stop the movable operating member so cooperates that with the complete closing of said leaf, the operating member is so moved that the operating bar is displaced over a distance along the cover lath lengthwise direction, at least one locking member which is also connected at a distance from the main closure to the operating bar and is movably mounted relative to the cover lath, and a stop which is mounted on the same element as the above mentioned stop and so cooperates with the locking member that with the above mentioned displacement of the operating bar, the locking member is so moved that some hooks behind the stop and, when the leaf is closed, retains said latter leaf closed at a distance from the main closure.

Such a door or window structure with a multipoint closure is described in Belgian Patent no. 888,063 in the name of the Applicant.

With a door or window structure according to this Patent, both the operating member and the locking member from the auxiliary closure is formed by a lever which is hingedly mounted on the cover lath and is eccentrically connected to the operating bar.

When during the closing of the leaf, the operating member engages the stop, said operating member is swung about the hinged connection thereof with the cover lath, whereby the operating bar is displaced upwards relative to the cover lath. Due to said upwards displacement, the locking member is swung about the hinged connection thereof with the cover lath and said member hooks behind the stop cooperating therewith.

The distance whereover the end of said locking member moves upwards during the swinging due to closing the leaf, and thus the distance whereover the locking member may hook behind the stop, is dependent on the spacing between said end and the hinged connection of the locking member to the cover lath, and on the angle whereover the locking member is swung.

The angle whereover the locking member can be swung corresponds to that angle whereover the operating member can be swung, and said angle is limited and does not exceed in practice 45 .

As the locking member should during the closing of the leaf, hook far enough behind the stop to insure a firm closing, the locking member has thus to be made as long as possible. The length of said locking member is however limited, on the one hand because the swing axis still has to lie on the cover lath, and on the other hand because the locking member should preferably, not project outside the door flat sides when the leaf is open.

This means that an auxiliary closure as described hereinabove may only be used when the upstanding edge of the leaf has a relatively-wide portion whereon the auxiliary closure may be mounted with a relatively wide cover lath.

In some cases, particularly with overlaid doors and windows from synthetic material, said auxiliary closure can not be used due to lack of space.

The invention has for object to provide a door or window structure with a multi-point closure whereby the auxiliary closure takes but a very limited width from the upstanding edge it is mounted on, and the cover lath from said auxiliary closure may be relatively small, while the top of the locking member from said auxiliary closure still moves over a relatively long distance during the complete closing of the leaf, in such a way that when the leaf is completely closed, said locking member may insure a very good leaf locking.

For this purpose the locking member is swingably mounted by means of a revolving shaft on the operating rod, the cover lath is provided with an oblong curved groove wherethrough the revolving shaft enters slidably over a distance, and the locking member is provided next to the revolving axis with at least one projection which also enters slidably the cover lath groove and which during a displacement of the operating bar relative to the cover lath, not only slides inside the groove but also causes the locking member to swing relative to the operating bar.

The displacement along the vertical direction of the locking member top during the complete closing of the leaf, results from a combination of the vertical displacement of the operating bar and thus of the operating member revolving shaft, and of the rotating of said operating member about the geometrical axis of said revolving shaft. The locking member top thus moves over a markedly longer distance than when the revolving shaft is not displaced along the vertical direction.With an auxiliary closure which takes up very little space along the width direction, a relatively large displacement of the locking member top may be obtained, in such a way that a larger clearance is possible between the locking member in open position and the stop cooperating therewith, in such a way that the arrangement of said stop may be made less accurately, and on the other hand the locking member in closed position hooks over a relatively long distance behind said stop and insures thereby a strong locking.

In a particular embodiment of the invention, the operating member is mounted on the operating bar by means of a pin, and the cover lath is provided with a groove extending along the lengthwise direction thereof, wherethrough the pin thrusts, while at least one of those parts- formed by said operating member and the stop it cooperates with, is provided with a chamber, in such a way that during the complete closing of the leaf, due to engaging of both parts together, the operating member and thus also the operating bar are pushed away along the vertical direction.

Mostly with this embodiment, with an operating member which takes-up relatively little place along the width direction, there may be obtained a relatively substantial displacement along the vertical direction of the operating bar during the complete closing of the leaf.

The chamfer on the one part at least from those parts formed by the operating member and the stop it cooperates with, usefully has a slanting lying between 30 and 40".

In a preferred embodiment of the invention, the oblong curved groove in the cover lath, wherethrough the revolving shaft of the locking member thrusts and wherein the projection of said locking member lies extends along part of a circle.

The centre line of said groove is usefully part of a circle with a radius iying between 8 and 12 mm.

In an useful embodiment of the invention, that oblong groove wherethrough the locking member revolving shaft extends and wherein the locking member projection lies, is symmetrical relative to the horizontal.

In a particularly useful embodiment of the invention, the door or window structure comprises two auxiliary closures, one above the main closure and one below the main closure.

The invention further relates to an auxiliary closure from the door or window structure with a multi-point closure according to any one of the preceding embodiments.

Other features and advantages of the invention will stand out from the following description of a door or window structure with a multi-point closure and of an auxiliary structure used thereby, according to the invention; this description is only given by way of example and does not limit the invention; the reference numerals pertain to the accompanying drawings.

Figure 1 is a front view of the upstanding edge from a not yet completely shut door leaf, with a multi-point closure according to the invention, whereby those multi-point closure parts which are mounted on the fixed door frame, not shown, have been drawn in dot-and-dash lines.

Figure 2 is a front view similar to Fig. 1 of part of the upstanding edge from the leaf shown in Fig. 1, but drawn on a larger scale and with the corresponding part of the fixed door frame with the multi-point closure parts mounted thereon drawn in dot-and-dash lines.

Figure 3 shows a section along line Ill-Ill in Fig. 2, but whereby the fixed door frame and the multi-point closure parts mounted thereon have also been shown in solid lines.

Figure 4 shows a section along line IV-IV in Fig. 2, also with the fixed door frame and the multi-point closure parts mounted thereon drawn in solid lines.

Figure 5 shows a section similar to Fig. 4, along line V-V in Fig. 2.

Figure 6 is a bottom view of the locking member from the multi-point closure as shown in Figs. 2 to 4.

Figure 7 shows a section along line VII-VII in Fig. 6.

In the various figures, the same references numerals pertain to the same elements.

The door structure as shown in Figs. 1 to 5 comprises in the conventional way, a fixed door frame or casing 1, a leaf 2 rotatably mounted therein and a multi-point closure, whereby the parts thereof cooperating with one another are mounted respectively on an upstanding jamb from the fixed door frame 1 and on the edge removed from the hinges, of leaf 2.

The casing 1 and leaf 2 have a structure known per se, whereby in Figs. 1 to 5, but the above-defined upstanding jamb from the fixed door frame 1 and the upstanding jamb with said edge of leaf 2 have been shown.

The above-defined upstanding jambs are comprised of synthetic material sections.

The leaf 2 is an applied leaf and the upstanding jamb thereof comprises on the side away from the hinges, a flat portion 3 and adjacent thereto a projecting edge 4 which lies with an inward-swinging door, on the inner side and forms a rabbet which, in the completely swung-shut position of leaf 2, engages by means of a seal 5 one side, namely the inner side with an inward open-swinging leaf 2, from the upstanding jamb of the fixed door frame 1. In the centre of said flat portion 3, a groove 6 is provided which extends over the whole height of the jamb of leaf 2.

The upstanding jamb of fixed door frame 1 shown in Fig. 1 to 5, also has on the door opening side, a flat portion 7 and next thereto a projecting edge 8. Said projecting edge 8 forms a rabbet which by means of a seal 9, engages in the closed position of leaf 2, one side of said leaf 2, namely the outer side with an inward-swinging leaf 2. Approximately in the center of flat portion 7, there is also provided a groove 10 which extends over the whole length of the upstanding jamb.

The multi-point closure is comprised of a main closure, shown generally with reference numeral 11 in Figs. 1 to 5, and of two auxiliary closures, shown generally in said figures with reference-numeral 12, which lie respectively above and below said main closure 11.

The main closure 11 is comprised in the conventional way of a lock mechanism 13 with night bolt 14 and day bolt 15. Said lock mechanism 13 is housed inside a recess in the upstanding jamb of leaf 2, and is secured with its front plate 16, by means of screws 17, against the flat portion 3 of the upstanding jamb.

Said lock mechanism 13 cooperates with a lock plate 18 which is provided with cut-outs 19 for the bolts 14 and 15, and is secured by means of screws 20 on the flat portion 7 of the upstanding jamb of the fixed door frame 1.

The lock mechanism 13 may have a known structure and will thus also not be shown there in details. A suitable lock mechanism 13 is notably described in Belgian Patent no.

871,413 in the name of the Applicant.

Each of the auxiliary closures 12 comprises on the fixed door frame 1, two stops 21 and 22 and on leaf 2, an operating member 23 cooperating with stop 21, a locking member 24 cooperating with stop 22, an operating bar 25 which couples the members 23 and 24 together, and a cover lath 26 which forms a guide for the movable members 23 and 24 and contributes to retaining in its location the operating bar 25.

The cover lath 26 is embedded, with the edges thereof on either side of groove 6, in the flat portion 3 of the upstanding jamb of leaf 2, in such a way that said lath 26 does little or not protrude outside the outer side of said portion 3. The cover lath 26 is secured with the ends thereof, by means of screws 27, to the upstanding jamb.

The operating bar 25 is smaller and somewhat shorter than cover lath 26 and is slidably arranged with some side play in groove 6. Said operating bar 25 is only secured in the hereafter described way to members 23 and 24, but cannot come out of groove 6 due to said cover lath 26.

The operating member 23 lies directly adjacent to the main closure 11 and thus lies in the lowermost auxiliary closure above the locking member 24, but in the uppermost auxiliary closure 12 below said locking member 24.

To the exception of said switch in the relative location of operating member 23 and locking member 24, and naturally also of the stops 21 and 22 cooperating therewith, both auxiliary closures 12 are identical to one another.

The operating member 23 is secured by means of a pin 28 to the one end of operating bar 25.

The operating member 23 lies on the outer side of cover lath 26 and pin 28 thrusts loosely through an oblong vertical groove 29 which is provided in said cover lath 26. The operating member 23 is consequently movable together with operating bar 25 along the vertical direction relative to cover lath 26. To prevent rotating of member 23, said member is provided on the side thereof facing cover lath 26, with an oblong straight rib 43 which fits slidingly in groove 29 but is markedly shorter than said groove.

Operating member 23 as considered crosswise to pin 38, is in the shape of an isosceles triangle, the base corners of which are radiused and the top corner of which is cut-off, but the top corner of which makes an angle between 60 and 80" and preferably of 70" as shown in Figs. 1 to 5. The perpendicular of said isosceles triangle is directed horizontally and the cut-off triangle top is directed along that direction along which the leaf 2 swings shut.

The lowermost edge 42 of operating member 23 thus forms a sloping plane with a slope between 30 and 40 , and preferably equal to 35".

Said sloping lower edge 42 cooperates with a top edge having the same slope from stop 21.

Said stop 21 is an oblong part which is chamfered at the top, on that side wherefrom the leaf is swung shut, and which is provided at the bottom, on the opposite side, with a tail 31. In Figs. 1 to 5, the chamfered top edge of part 21 is shown by reference numeral 30.

Said oblong part is partly sunk into groove 10 of the upstanding jamb of the fixed door frame 1, but still protrudes partly outside the flat portion 7, in such a way that operating member 23 engages stop 21 during the complete swinging shut of leaf 2.

Stop 21 is secured to said latter upstanding jamb by means of two screws 32 which are screwed in the bottom of groove 10, which pass with a substantial clearance through much larger openings 33 in stop 21 and press said stop against said latter bottom, through the interposition of a small rectangular plate 34 serrated on the bottom, which plate is adjustably embedded into a somewhat longer recess 35 on the outer side of stop 21. The heads of screws 32 are also sunk in said recess 35.

As long as the screws 32 are not completely tightened, it is possible to adjust somewhat in this way the accurate location of stop 21 along the vertical direction relative to the upstanding jamb of door frame 1.

The stop 21 is naturally secured on said latter jamb in such a way that the lowermost point of the sloping top edge 30 of stop 21, which lowermost point lies on that side the leaf 2 is swung shut from, lies somewhat lower than the highest point from the sloping lower edge 42 of operating member 23, when said operating member 23 lies in the lowermost position. The operation member 23 takes this position shown in Fig. 1 as long as leaf 2 is not completely swung shut and the operating member 23 has not yet engaged stop 21. Said highermost point from cooperating member 23 naturally lies frontward as considered along that direction leaf 2 is swung shut along.

When said leaf 2 is swung shut, the operating member 23 engages with the sloping bottom edge 42 thereof, the sloping top edge 30 of stop 21, as soon as leaf 2 has reached the position as shown in Fig. 1. During the further swinging shut of leaf 2, the sloping bottom edge 42 from operating member 23 slides over the sloping top edge 30 from stop 21, whereby said operating member 23 is moved upwards. Said operating member 23 takes along through pin 28 thereof sliding inside groove 29, the operating bar 25 upwards. In Figs. 2 to 5, the leaf 2 is shown in the completely swung shut position, thus with operating member 23 in the topmost position thereof.

Locking member 24 comprises a body 36 and a tail 37 connecting thereto. Said body 36 is rotatably mounted about a pin 38, which pin is fixedly secured to that end removed from main closure 11, of the operating bar 25. Said pin thrusts loosely through an opening 41 in body 36, and is sunk with an enlarged head in said opening.

Locking member 24 lies on the outer side of cover lath 26 and pin 38 passes through an oblong groove 39 in said cover lath 26.

Groove 39 is not however straight as said groove 29 but the center line thereof described somewhat less than half a circle. The center line of groove 39 lies on a circle with a radius between 8 and 12 cm, and preferably equal to 10.5 mm.

Groove 39 is directed upwards and lies symmetrically relative to the horizontal, and it is directed with the hollow side thereof in the direction wherealong the leaf swings open.

Locking member 24 is provided on that side facing cover lath 26, of the body 36 thereof with a projection or rib 40 which has a shape which corresponds to the groove 39, but is shorter than said groove Rib 40 which describes part of a circle, projects moreover in groove 39 and the opening 41 also extends through said rib 40.

The curved rib 40 is so arranged on locking member 24 that when said rib lies at the bottom of groove 39 and thus also pin 38 as well as operating bar 25 lie in the lowermost position, the locking member 24 lies with the tail 37 thereof at an angle to the front, that is along the direction in which the leaf 2 is swung shut.

The locking member 24 is shown in this position in Fig. 1. This position thus corresponds to the lowermost position of operating member 23 and is taken up when leaf 2 has not yet been swung shut.

When, as described hereinabove, during the complete swinging shut of leaf 2, the operating member 23 moves upwards due to cooperation with stop 21, and thus also the operating bar 25 moves upwards, the hinge pin 38 also moves upwards in groove 39.

The locking member 24 is thereby not only moved as a unit upwards, but it also has to swing due to the rib 40 thereof describing an arc inside groove 39.

When operating member 23 has reached the topmost position thereof, the locking member 24 also has reached the highest position thereof and has moreover swung to the position whereby the tail 37 thereof is directed upwards. The locking member 24 is shown in such a position in Figs. 2,3 and 5.

In said latter position, the locking member 24 hooks or catches with the tail 37 thereof behind the tail 31 of the stop 22 cooperating therewith.

Said stop 22 is the mirror image of said stop 21 and corresponding portions thereof are shown with the same reference numeral.

The stop 22 is secured with chamfered edge 30 upwards and tail 31 downwards, into groove 10 of the upstanding jamb of the fixed door frame 1, but as stop 22 is the mirror image of stop 21, the tail 31 lies on that side the leaf 2 is swung shut from, while the chamfered edge 30 is directed towards the opposite side.

The stop 22 is secured in the same way as stop 21, by means of two screws 32, through the interposition of a small plate 34 with serrated bottom, on the upstanding jamb, and actualiy in such a location that the lowermost end of tail 31 comes to lie about 9 mm higher than the top end of tail 37 of locking member 24, when said member lies in its lowermost position.

Both auxiliary closures 12 are automatically brought in the same way to the closed position due to the swinging shut of leaf 2, independently from the main closure 11.

When during the swinging shut of leaf 2, said latter one is substantially completely swung shut, the operating member 23 from each auxiliary closure 12 engages the corresponding stop 21. With the further swinging, the operating member 23 from each auxiliary closure 12 is moved upwards and through operating bar 25, said operating member 23 pulls locking member 24 along upwards. 3ur- ing the upwards displacement thereof, the locking member 24 swings, whereby it hooks with the tail 37 thereof behind the corresponding stop 22.

When the leaf is completely swung shut, the locking members 24 from both auxiliary closures 12 insure a locking at a distance from main closure 11 as long as leaf 2 is retained in the completely shut position, that is as long as the main closure 11 retains the leaf 2 in closed position.

The shape and size of the locking members 24 and grooves 39 are so designed that the top of tail 37 of the locking members 24 undergoes during said shifting from the open position shown in Fig. 1 to the closed position shown in Fig. 2, an upwards displacement over 19 mm. The correct position of stops 21 and 22, which is moreover easily adjustable, is not very critical and the locating of said stops should not occur very accurately. In spite of this, the locking members 24 lie in closed position with a relatively substantial portion, mostly with a length about 10 mm, behind the stop 22 pertaining thereto.

The cover lath 26 may be very small and the complete auxiliary closures 12 take up relatively little place along the width direction.

The forces the operating members 23 and the stops 22 pertaining thereto exert on one another in closed position, have a substantial vertical component, in such a way that said forces have but a slight tendency to push the leaf 2 to the open position.

When the leaf 2 is swung open from the closed position, the operating member 23 from each auxiliary closure 12 slides off from the chamfered edge 30 of the stop 21 and due to gravity, the unit formed by said member 23, the operating bar 25 and the locking member 24 falls back down to the position shown in Fig. 1. The locking member 24 swings thereby back to the sloping starting position thereof, whereby it does no more hook behind stop 22. As soon as locking member 24 lies below stop 22, it does to more retain the leaf 2 shut.

The invention is in no way limited to the above-described embodiment and within the scope of the patent application, many changes may be brought to the described embodiment, notably as regards the shape, the composition, the arrangement and the number of the components which are being used to embody the invention.

More particularly, the operating member does not necessarily have to be in the shape as described. The member may be chamfered on the bottom edge only, or when the top edge of the stop cooperating therewith is )chamfered, it may even not be chamfered. In the latter case, the operating member may be a pin. The operating member does not neces sarily have either to be provided with a rib which prevents the rotating thereof. As far as said member may not rotate, it may be posi tively connected to the operating bar by the pin.

Claims (21)

1. Door or window structure with a multi point closure, which structure comprises a fixed frame (1) and a swingable leaf (2), and which multi-point closure comprises a main closure (11) which comprises in turn an operatable main lock mechanism (13) with at least one bolt (14,15), which mechanism is mounted on the leaf (2), and a lock plate (18) cooperating with said main lock mechanism (13), which lock plate is mounted on the fixed )frame (1), which multi-point closure also com prises at least one auxiliary closure (12) acting independently from the main closure (11), which auxiliary closure is automatically acti vated when closing the leaf (2) and which can inclose the leaf (2) at a distance from the main closure (11), which auxiliary closure (12) -comprises an operating bar (25) which is sli dably mounted on an upstanding edge from one of those elements (2) formed by the leaf ) and the fixed frame, -a cover lath (26) which is mounted, on the outer side above the slidable operating bar (25), on said edge, -an operating member (23) which is con nected adjacent the main closure (11), to the operating bar (25) and is mounted on the outer side of and movably relative to the cover lath (26), -a stop (21) mounted on the other element ) (1) from those elements formed by the leaf and the fixed frame, with which stop the movable operating member (23) so coop erates that during the complete closing of the leaf (2), the operating member (23) so moves that the operating bar (25) is dis placed over a distance along the lengthwise direction of the cover lath (26).

-at least one locking member (24) which is connected at a distance from the main clo ) sure (11), also to the operating bar (25), and is movably mounted relative to the cover lath (26), and -a stop (22) which is mounted on the same element (1) as the above mentioned stop (21) and cooperates with the locking mem ber (24), in such a way that with the above mentioned displacement of the operating bar (25), the locking member (24) so moves that ) it hooks behind the stop (22), and when the leaf (2) is shut, it retains said latter leaf shut at a distance from the main closure (11), characterized in that the locking member (24) is revolvably mounted by means of a revolving shaft (38) on the operating bar (25), the cover lath (26) is provided with an oblong curved groove (39) wherethrough the revolving shaft (38) enters slidably over a distance, and the locking member (24) is provided next to the revolving shaft (38) with at least one projection which also enters slidably the groove (39) in the cover lath (26), and which during a displacement of the operating bar (25) relative to the cover lath (26), not only slides inside the groove (39) but also causes the locking member (24) to swing relative to the operating bar (25).

2. Door or window structure according to claim 1, characterized in that the operating member (23) is mounted on the operating bar (25) by means of a pin (28), and the cover lath (26) is provided with a groove (29) extending along the lengthwise direction thereof, wherethrough the pin (28) thrusts, while at least one of those parts formed by said operating member (23) and the stop (21) it does cooperate with, is provided with a chamfering (30 and/or 42), so that with the complete shutting of the leaf (2), due to an engagement of both parts together, the operating member (23) and thus also the operating bar (25) are pushed away along the vertical direction.

3. Door or window structure according to claim 2, characterized in that the operating member (23) is mounted on the operating (bar (25) and both the operating member (23) and the stop (21) wherewith said operating member (23) cooperates, are provided with a chamfering (30,42), which chamfers (30,42) cooperate together during the complete shutting of the leaf (2).

4. Door or window structure according to either one of claims 2 and 3, characterized in that the operating member (23) is unrevolvably mounted on the operating bar (25).

5. Door or window structure according to claim 4, characterized in that the operating member (23) has on the side thereof facing the cover lath (26), a projection (43) which extends eccentrically relative to the pin (28) and which slidably enters the oblong groove (29) in the cover lath (26).

6. Door or window structure according to any one of claims 2 to 5, characterized in that the chamfer (30,42) of at least one of those parts formed by the operating member (23) and the stop (21) it does cooperate with, has a slope between 30 and 40".

7. Door or window structure according to claim 6, characterized in that the chamfer (30,42) from at least one of those parts formed by the operating member (23) and the stop (21) wherewith said member cooperates, has a slope about 35".

8. Door or window structure according to any one of claims 2 to 7, characterized in that the operating member (23) has a substantially triangular shape.

9. Door or window structure according to any one of claims 1 to 8, characterized in that the operating member (23) so cooperates with the corresponding stop (21) that during the complete shutting of the leaf (2), said member is moved upwards, and with the opening anew of the leaf (2), said member falls down by gravity.

10. Door or window structure according to claims 3 and 9, characterized in that the operating member (23) has on the bottom a chamfered edge (42), while the stop (21) cooperating therewith has at the top and on that side the leaf (2) is swung shut from, a chamfered edge (30) cooperating with said edge (42).

11. Door or window structure according to any one of claims 1 to 10, characterized in that the operating bar (25), the cover lath (26), the operating member (23) and the locking member (24) are mounted on the leaf (2), while the stops (21 and 22) are mounted on the fixed door frame (1).

12. Door or window structure according to any one of claims 1 to 11, characterized in that the element (2) the cover lath (26) from the auxiliary closure (12) is mounted on, is provided with a groove (6) which is closed by said cover lath (26), and the operating bar (25) from said auxiliary closure (12) lies in said groove (6).

13. Door or window structure according to any one of claims 1 to 12, characterized in that the oblong curved groove (39) in the cover lath (26) wherethrough the revolving shaft (38) of the locking member (24) thrusts and wherein the projection (40) of said locking member (24) lies, extends along part of a circle.

14. Door or window structure according to claim 13, characterized in that the center line of the oblong curved groove (39) in the cover lath (26) is part of a circle with a radius between 8 and 12 mm.

15. Door or window structure according to claim 14, characterized in that the center line of the oblong curved groove (39) in the cover lath (26) is part of a circle with a radius of

10.5 mm.

16. Door or window structure according to any one of claims 13 to 15, characterized in that the oblong groove (39) wherethrough the revolving shaft (38) of the locking member (24) extends and wherein the projection (40) of the locking member (24) lies, is symmetric relative to the horizontal.

17. Door or window structure according to any one of claims 1 to 16, characterized in that the projection (40) of the locking member (24) is a rib which corresponds in the shape and size thereof with part of the curved groove (39) in the cover lath (26).

18. Door or window structure according to any one of claims 1 to 17, characterized in that it comprises two auxiliary closures (12), one above the main closure (11) and one below the main closure (11).

19. Door or window structure as described hereinabove or shown in the accompanying drawings.

20. Auxiliary closure (12) from the door or window structure with a multi-point closure according to any one of claims 1 to 19.

21. Auxiliary closure (12) as described hereinabove or shown in the accompanying drawings.