EP0394647A1 - Hinge for windows and doors or the like - Google Patents

Abstract

There is provided a hinge for windows and doors or the like, with hinge parts fastenable via a screw-down or screw-on base 3 to the visible surface of the frame and/or wing, specifically especially a hinge bearing for the swivel devices of turn-and-tilt fittings, in which the pivot sleeves or bearing lugs 7a, 7b of two hinge parts are held in uncouplable articulated connection with one another by means of an axially displaceable bearing bolt 9, the bearing bolt 9 being securable in its engaged operative position against axial displacement. So that, in practical use, the undesirable disengagement of the axially displaceable bearing bolt can be prevented and also access to the fastening screws barred, positively surrounding metal protective caps 11 are provided both of the screw-down and screw-on bases 3 and for the pivot sleeve or bearing lugs 7a, 7b of the respective hinge part, for example of the bearing block 1. Between these protective caps 11 and the hinge parts, for example the bearing block 1, are located catch fasteners 16 and 17 which are arranged in a concealed manner and the catch members 18, 19 and 26, 29 of which can be put into and out of blocking engagement relative to one another only by means of a special tool. <IMAGE>

Description

The invention relates to a hinge for windows and doors or the like. With hinge parts which can be fastened by means of screw-on or screw-on bases on the visible surface of the frame and / or sash. It is particularly concerned with a hinge bearing for the opening device of turn-tilt fittings, the bearing block on the room-side end face of the window frame or a door can be fastened with the aid of screws by these screws countersunk holes in mounting flanges directed parallel to the plane of the room-side end face of the window frame or - penetrate lobes, as well as with their heads - preferably - in the sinks.

In such hinges or hinge bearings, the joint sleeves and / or bearing eyes of two hinge parts are held together in an uncouplable articulated connection by an axially displaceable bearing pin, which can be secured in its engaged operative position against undesired axial displacement.

Hinge joints of the aforementioned type are already part of the prior art, as can be seen, for example, from DE-AS 23 17 039 and DE-AS 23 43 507.

These known hinge joints are already designed so that you keep the two hinge parts in joint connection Bearing bolts can not be moved axially into the uncoupling position by simple special manipulations from its engaged operative position.

Especially with hinge bearings for the opening devices of turn-tilt fittings, it is important that the bearing bolts cannot be easily moved axially when the sash is open in the tilt-open position, because this counteracts a loosening of the hinge bearings and thus at least theft of entry is made considerably more difficult.

In practice, however, it has been shown that in many cases securing the bearing pins on the hinge bearings of the opening devices is not sufficient to effectively counter entry from the outside. In the known hinges with hinge parts that can be attached to the front face of the frame by means of screw-on or screw-on bases, the heads of the fastening screws with their tool interventions are exposed, these can also be loosened from the outside with some skill with the wing open in the tilted position. The entire hinge bearing of the opening device is then free and then makes it possible, in itself, to unhook the tilted wing.

From DE-GM 72 35 602 it is already known to assign hinge bearings of the generic type for opening devices of turn-tilt fittings cover caps made of plastic, which cover both the countersunk holes containing the fastening screws in the fastening flanges or flaps, as well as properly in the bearing eyes Enclose the seated bearing pin on both ends.

These known plastic cover caps are designed to be dimensionally elastic and are easily detachably latched to the hinge parts at several points on their peripheral edges. They are mainly used in conjunction with windows and doors made of plastic and are only intended to improve the external appearance of the hinges, but do not perform any security function.

The aim of the invention is to provide hinges for windows and doors or the like with the generic characteristics specified at the outset, which in practical use are protected both against the undesired disengagement of the axially displaceable bearing bolts coupling the two hinge parts together, and also access to the block fixing screws.

Such a hinge is mainly characterized according to the invention by both the screw-on or screw-on base as well as the joint sleeve or bearing eyes and the bearing bolt of the respective hinge part, metal protective caps with a form-fitting fit and by means of bolt locks which are concealed between these protective caps and the hinge parts, the locking members of which are relative to one another essentially form-fitting - can be set in and out of locking engagement.

It has proven particularly useful with such hinges if the latch locks have on the one hand at least one pair of latch members, each of which is arranged in a fixed manner on the hinge parts and on the protective caps, complementary latch members which can only be brought into and out of engagement with one another by mutual relative displacement of the protective cap and hinge part are, while on the other hand they comprise at least one additional locking member pairing, in which one of the locking members can be brought into and out of locking engagement relative to the other by mechanical adjustment.

A particularly secure design of the hinges according to the invention is obtained if the two locking element pairs can be brought into locking engagement with one another in opposite directions, because this optimizes the cohesion of the metallic protective cap with the relevant hinge part.

According to the invention, the mechanically adjustable locking element pairing can advantageously be a rotary bolt as an engaging and disengaging bolt have limb. In order to achieve a particularly simple design, it has proven useful if this rotary latch is mounted on the back of the protective cap in a one-piece molded or molded pocket and its latch attachment consists of a flange body, the circumference of which is partially secant. It is sufficient if the angle of rotation for the rotary bolt in the pocket is limited to 90 ° by the interaction of stops, whereby in the one stop position, which enables the protective cap and the hinge part to be put together, the secantially offset region of the flange body adjoins the adjacent edge of the associated hinge part is turned, while in the second - causing the locking - end position the circular circumference of the flange body corresponds to the locking engagement in the edge of the hinge part.

In the simplest case, the rotary latch can have a molded-in profile channel as an actuating intervention, which lies behind a profile opening in the end wall of the protective cap, a socket wrench being provided as the actuating element, which fits on the one hand to the profile channel and on the other hand to the profile opening.

If higher security requirements are imposed, the rotary bolt according to the invention can also form part of a short-lock cylinder built into the protective cap, this short-lock cylinder being actuable by a key.

On the other hand, in pursuit of the inventive concept, it would also be possible to let the disengageable locking member of the adjustable locking member pair consist of a spring catch, which is then replaced by a rotary cam, e.g. a socket key or a short lock cylinder, is movable in the release position.

With such a design, it is possible to bring the metallic protective cap into operative connection with the hinge part to be covered without the aid of any actuating element, that is to say purely manually.

The use of the additional actuating element would then only be necessary to loosen the protective cap.

From a structural point of view, it has finally proven itself after the innovation if the inside width of the protective cap parallel to the direction of engagement of the opposite bolt locks is shorter by the depth of engagement of the fixed locking element pairing than the length of the hinge part which can be enclosed by this protective cap, but that the total length of the protective cap is determined by the length of the hinge part plus the dimension of the minimum installation space for the mechanically adjustable locking element pairing.

• Fig. 1 die Stirnansicht eines als Scharnierlager für Ausstellvorrich­tungen von Drehkippbeschlägen ausgelegten Scharniers mit einer aufgesetzten und verriegelten Schutzkappe,
• Fig. 2 Scharnierlager und Schutzkappe nach Fig. 1 in der Rückansicht,
• Fig. 3 den unteren Teil der Fig. 2 in einer anderen Funktionsstellung,
• Fig. 4 einen Vertikalschnitt entlang der Linie IV-IV der Fig. 1 zu Be­ginn des Aufsetzens der Schutzkappe auf das Scharnierlager,
• Fig. 5 einen der Fig. 4 entsprechenden Schnitt bei aufgesetzter, jedoch noch nicht endgültig verriegelter Schutzkappe und
• Fig. 6 das Scharnierlager mit aufgesetzter Schutzkappe im verriegelten Zustand, während die
• Fig. 7 und 8 jeweils in demontierter Darstellung den der Fig. 3 entsprechenden Teil einer baulich abgewandelten Schutzkappe mit zugehörigem Drehriegel in zwei möglichen Bedienstellungen des letzteren wiedergeben.

In the drawing, a preferred embodiment of the subject of the innovation is shown. It shows

• 1 is a front view of a hinge designed as a hinge bearing for opening devices of turn-tilt fittings with an attached and locked protective cap,
• 2 hinge bearing and protective cap according to FIG. 1 in the rear view,
• 3 shows the lower part of FIG. 2 in a different functional position,
• 4 shows a vertical section along the line IV-IV of FIG. 1 at the start of putting the protective cap on the hinge bearing,
• Fig. 5 is a section corresponding to FIG. 4 with the protective cap on, but not yet finally locked
• Fig. 6, the hinge bearing with the protective cap in the locked state, while the
• 7 and 8 each show in a disassembled representation the part of a structurally modified protective cap corresponding to FIG. 3 with the associated rotary latch in two possible operating positions of the latter.

In the drawing, the bearing block 1 of a hinge bearing for the opening devices of turn-tilt fittings is shown on the frame of a window, a door or the like, which is provided, for example, on the back with a pot-like extension 2, which fits into a matching blind hole on the end face of the room Can slide in the frame. In addition, the bearing block 1 is designed as a screw-on or screw-on base 3, which can be screwed to the frame lying in front of the visible face of the frame.

The screw-on or screw-on base 3 of the bearing block 1 is provided with two screw-on or screw-on tabs 4a and 4b which extend in opposite directions, namely upwards and downwards and are aligned parallel to the plane of the frame, in which countersunk holes 5a and 5b are provided Mounting screws 6 are located.

The screw-on or screw-on tabs 4a, 4b of the screw-on or screw-on base 3 are in one piece with the pot-like extension 2, e.g. made of die-cast, each of which, also integrally molded, carries a right-angled bearing eye 7a or 7b. Both bearing eyes 7a and 7b each have bearing holes 8a and 8b in alignment, into which a bearing pin 9 can be removably inserted.

Between the side surfaces of the two bearing eyes 7a and 7b facing each other, there is a spacing gap 10 into which a hinge arm (not shown) held, for example, on the raising arm of the raising device, can be inserted, whereby it moves over the bearing pin 9 with the bearing block 1 to form it of the complete hinge bearing can be brought into articulation.

For the purpose of releasing the hinge arm from the bearing block 1, the bearing pin 9 can be displaced axially relative to the bearing holes 8a and 8b in the bearing eyes 7a and 7b such that it disengages from the associated bearing hole in the hinge arm of the opening device.

A metal protective cap 11 is assigned to the pedestal 1 or its screw-on or screw-on base 3 formed by the screw-on or screw-on tabs 4a, 4b and the bearing eyes 7a, 7b. This has such a shape that it can encompass the entire screw-on or screw-on base 3, namely both the screw-on or screw-on tabs 4a, 4b and the bearing eyes 7a, 7b, such as that shown in FIGS. 1 and 2 and the other 5 and 6 can be seen.

The metallic protective cap 11 can optionally be manufactured as a deep-drawn molded part from sheet steel. However, it can be produced particularly advantageously as a die-cast molded part, for example made of zinc or brass.

The metallic protective cap 11 is delimited along its circumferential edges by side walls 12, the course of which is determined by the outline shape of the screw-on or screw-on base 3 for the bearing block 1. An end wall 13 adjoins these side walls 12 in one piece, from which in turn wall sections 14 protrude essentially at right angles, to which frame walls 15 are also connected in one piece at a right angle. With the inner boundary surfaces of the side walls 12, the metallic protective cap 11 can be tightly connected to the peripheral edges of the screw-on or screw-on base 3 or the screw-on or screw-on tabs 4a and 4b, as can be seen in FIGS. 2, 5 and 6. The frame walls 15 are also designed so that they can come into contact with the peripheral surfaces of the bearing eyes 7a and 7b of the screw-on or screw-on base 3, as can be seen in FIGS. 5 and 6. The end walls 13 adjoin the side walls 12 in such a way that they run at a distance parallel to the end faces of the screw-on or screw-on tabs 4a or 4b, while the wall sections 14 are in turn shaped so that they are spaced parallel to the outer side faces of the Bearing eyes 7a and 7b extend (see Fig. 5 and 6 of the drawing).

An essential feature of the metallic protective cap 11 is that it can be plugged onto the screw-on or screw-on base 3 of the bearing block 1, after this has been attached on the one hand with the aid of the fastening screws 6 to the visible surface of the window frame of a window or a door and on the other hand the (not shown) hinge arm of the opening device via the bearing pin 9 with the bearing eyes 8a and 8b of the screw-on or screw-on base 3 in an articulated connection was brought.

The metallic protective cap 11 not only makes the fastening screws 6 inaccessible, but also the bearing pin 9 is also secured in its engaged position by the wall sections 14 engaging at its ends, as can be clearly seen in FIGS. 5 and 6 of the drawing.

Another essential feature of the metallic protective cap 11 is that it can be blocked in its operative connection with the bearing block 1 with the aid of concealed latch locks 16 and 17.

The bolt lock 16 has as a fixed locking member on the metallic protective cap 11 a locking tongue 18 which projects from the inner surface of a side wall 12, for example the upper side wall 12. On the other hand, in order to form the bolt lock 16 as a fixed bolt member on the screw-on or screw-on base 3 of the bearing block 1, a bolt pocket 19 is provided in a transverse edge, for example the upper transverse edge, the contour of which is complementary to the bolt tongue 18. The mutually facing surfaces of the locking tongue 18 and locking pocket 19 are designed in a wedge-shaped manner that a slight engagement of the locking latch 16 is possible, but that in its final functional position it is braced at least approximately without play.

The latch tongue 18 and the latch pocket 19 of the latch lock 16 are brought into positive engagement with one another by plugging them together in the oblique position of the metallic protective cap 11 shown in FIG. 4 relative to the screw-on or screw-on base 3. The metallic protective cap 11 is then pressed into the position shown in FIG. 5.

The second latch lock 17 can then be brought into engagement, specifically with an effective direction opposite to the engagement direction of the latch lock 16. However, while the latch tongue 18 and latch pocket 19 of the latch lock 16 can be brought into and out of engagement exclusively by relative displacement of the protective cap 11 to the screw-on or screw-on base 3 of the bearing block 1, the latch lock 17 is designed as a mechanically adjustable latch lock. For this purpose, in the exemplary embodiment shown, it has, as an engaging and disengageable locking member, a rotary lock 20 which is accommodated in a storage pocket 21 on the rear side of the metallic protective cap 11. This storage pocket 21 is integrally formed on the inside of the metallic protective cap 11, specifically on the side walls 12 thereof, as can be seen in FIGS. 2 to 6.

In the bearing pocket 21 of the protective cap 11, the rotary latch 20 is received in an axially non-displaceable manner and for this purpose engages with a bearing flange 22 in a groove 23 which extends between the end wall 13 of the protective cap 11 and an approximately U-shaped web 24 (see FIG. 3 ) is trained.

In the area of the web 24, the rotary latch 20 has a neck 25, which in turn is integrally connected to a flange body 26 which is received in a step 27 located on the side of the web 24 facing away from the groove 23.

The flange body 26 of the rotary latch 20 basically has a circular circumference. However, it is offset secantally in some areas and there has a straight edge 28.

The neck 25 of the rotary latch 20 is profiled in a drop shape in cross-section over a part length adjoining the bearing flange 22, but is round on the remaining length. The straight surface sections of the drop shape that form the drop tip together have an angular position of 90 ° relative to one another. Due to the interaction of the neck 25 profiled in this way with the inner circumferential surfaces of the web 24 of the bearing pocket 21 pocket, the rotary latch 20 receives a rotation angle limitation within the bearing pocket 21 of 90 °.

In the one stop-limited end rotary position of the rotary latch 20, which can be seen in FIG. 3 of the drawing, the straight edge 28 of the flange body 26 formed by the secantial shoulder assumes the position shown in FIGS. 4 and 5, ie , it faces a locking pocket 29 which corresponds in its design to the locking pocket 19 and is located in the transverse edge of the screw-on or screw-on tab 4b on the screw-on or screw-on base 3, which is directed away from the screw-on or screw-on tab 4a.

By rotating the rotary latch 20 by 90 ° into the opposite end position, which in turn can be seen in FIG. 2 of the drawing, the flange body 26 with its circularly limited peripheral region comes into the locking pocket 29 for positive engagement, as can be seen in FIGS. 2 and 6 . The mechanically adjustable bolt lock 17 is then also positively engaged and the metallic protective cap 11 is firmly anchored on the bearing block 1 or on its screw-on or screw-on base 3.

As an actuation, the rotary latch 20 has e.g. a molded-in profile channel 30, which lies behind a profile opening 31 in the end wall 13 of the metallic protective cap 11. A socket wrench can be used as the actuating element, which fits on the one hand to the cross section of the profile channel 30, but on the other hand also to the cross section of the profile opening 31.

Fig. 1 of the drawing shows that the profile opening 31 can, for example, get a cross or + shape. The profile channel 30, on the other hand, can have a rectangular cross-section, so that a suitably flat profiled socket wrench can be used, which can be engaged and disengaged through the profile opening 31 with the profile channel 30 in two positions rotated by 90 ° with respect to one another.

Of course - in contrast to the exemplary embodiment shown - there is also the possibility of providing the locking bolt 20 as part of a short-lock cylinder built into the metallic protective cap 11, the short-lock cylinder being able to be actuated by a key suitable for this.

Instead of the rotary bolt 20, a spring catch can also be used as a releasable locking member, which then simply engages with the screw-on or screw-on base 3 by simply pressing on the metallic protective cap 11 - that is to say without using tools. Only to release the metallic protective cap 11, this spring catch must be turned by a rotary cam, e.g. a socket wrench or a locking cylinder to be moved in the release position.

1 and 2 of the drawing, in particular, that the inside width of the metallic protective cap 11 parallel to the direction of engagement of the two opposite latch locks 16 and 17 is approximately shorter than the maximum length of the through the protective cap by the engagement depth of the latch lock 16 11 to be covered screw-on or screw-on base 3. The total length of the metallic protective cap 11 corresponds to FIGS. 1 and 2, however, the length of the screw-on or screw-on base 3 plus the dimension of the minimum installation space for the mechanically adjustable bolt lock 17.

Finally, it should also be mentioned that it is of course also possible to use a second bolt lock 17, which can be brought into and out of lock engagement by mechanical adjustment instead of being brought into and out of engagement exclusively by mutual relative displacement of the protective cap 11 and screw-on or screw-on base 3 is. In this case, however, the overall length of the metallic protective cap 11 must also be extended by the minimum installation dimension for the second bolt lock 17.

In a departure from the exemplary embodiment according to FIGS. 1 to 6 of the drawing, rotary latch 20, bearing pocket 21 and protective cap 11 can also be designed in such a way that the actuation of the latch lock 17 can be effected by rotating the rotary latch 20 by 180 °.

7 and 8, it is expedient, instead of the neck 25, to design the bearing flange 22 of the rotary bolt 20 with an approximately teardrop-shaped outline shape, so that it forms two stop surfaces 22a and 22b offset by 90 ° to one another. The groove 23 of the bearing pocket 21 in the protective cap 11 which receives the bearing flange 22, on the other hand, receives two stop surfaces 23a and 23b which are offset at an angle of 270 ° to one another, against which the stop surfaces 22a and 22b of the rotary latch 20 can run against one another, as is clearly shown in FIGS do.

In this case, not only the profile channel 30 in the rotary latch 20 but also the profile opening 31 in the metallic protective cap 11 can be made approximately rectangular.

In this embodiment of a bolt lock 17, it is advantageous compared to FIGS. 1 to 6 that the neck 25 of the rotary bolt 20 can be dimensioned relatively short and, accordingly, the overall height of the rotary bolt 20 and the protective cap 11 in the region of the side walls 12 and the end wall 13 accordingly can be run lower.

Claims (9)

1.Hinge for windows and doors or the like with hinge parts which can be attached to the visible surface of the frame and / or sash via screw-on or screw-on bases, in particular hinge bearings for the opening devices of tilt-and-turn fittings, in which the joint sleeves or bearing eyes of two hinge parts by means of an axially displaceable bearing pin are held together in an uncouplable articulated connection which can be secured against axial displacement in its pressed-in operative position,
marked by
Both the screw-on or screw-on base (3) and the joint sleeve or bearing eyes (7a, 7b) of the respective hinge part (bearing block 1) form-fitting metal protective caps (11) as well as covered by between these protective caps (11) and the hinge parts (bearing block 1) arranged bolt locks (16 and 17), the bolt members (18, 19 and 26, 29) of which can be adjusted relative to one another in and out of locking engagement. 2. Hinge according to claim 1,
characterized,
that the bolt locks (16 and 17) on the one hand at least one locking member pairing (18/19), each of which is stationary on the hinge parts (Bearing block 1) and on the protective caps (11) mutually complementary locking members (18 and 19), which can be brought into and out of engagement with one another exclusively by mutual relative displacement of the protective cap 11 and hinge part (bearing bracket 1), while on the other hand they have at least one additional locking member -Pairing (26/29), in which one (26) of the locking members (26, 29) relative to the other (29) can be brought into and out of locking engagement by mechanical adjustment. 3. Hinge according to one of claims 1 and 2,
characterized,
that the two locking link pairings (16; 18/19 and 17; 26/29) can be brought into locking engagement with one another in opposite directions. 4. Hinge according to one of claims 1 to 3,
characterized,
that the mechanically adjustable locking member pairing (17; 26/29) has a rotary bolt (20) as an engaging and disengaging locking member (26). 5. Hinge according to claim 4,
characterized,
that the rotary bolt (20) is mounted on the back of the protective cap (11) in a one-piece molded or molded-in storage pocket (21) and its bolt attachment consists of a flange body (26), the circumference of which is partially offset secantially and there a straight edge ( 28) has. 6. Hinge according to one of claims 4 and 5,
characterized by
that the rotary bolt (20) has an integrally formed profile channel (30) as an actuating engagement, which is behind a profile opening (31) in the end wall (13) of the protective cap (11), a socket wrench being provided as the actuating element, which fits on the one hand to the profile channel (30) and on the other hand to the profile opening (31). 7. Hinge according to one of claims 4 to 6,
characterized,
that the rotary latch (20) forms part of a short-lock cylinder built into the protective cap (11) and that the short-lock cylinder can be actuated by a key. 8. Hinge according to one of claims 1 to 3,
characterized,
that the disengageable locking member of the adjustable locking member pairing (17; 26/29) consists of a spring catch which can be moved in the release position by means of a rotary cam, for example a socket wrench or a short lock cylinder. 9. Hinge according to one of claims 1 to 8,
characterized,
that the clear width of the protective cap (11) parallel to the direction of engagement of the opposite bolt locks (16 and 17) is dimensioned shorter by the engagement depth of the fixed locking member pairing (16; 18/19) than the length of the protective cap (11) enclosable hinge part (bearing block 1), but that the total length of the protective cap (11) is at least larger by the dimension of the minimum installation space for the mechanically adjustable locking member pairing (17) than the length of the screw-on or screw-on base (3) on the hinge part ( Bearing bracket 1).

Images