EP0315767B1 - Locking device against wrong operation - Google Patents

Abstract

For an actuating linkage which can be brought into a plurality of different switch positions and which belongs to a window, door or the like, especially with turn-and-tilt wings composed of metal and/or plastic sections, there is proposed a locking device against wrong operation, which consists of few functional parts and which can be mounted easily even at points of the wing remote from the actuating handle or adjusting mechanism, without a special working of the wing profile being necessary for this purpose. A locking rocker 21 held tiltably about an axle 20 parallel to a wing leg and prestressed in the locking direction by spring force 27 interacts with locking catch elements 23a to 23c on a driving-rod coupling piece 14 guided in an undercut driving-rod channel 12 of the wing 2 and, when the wing 2 bears against the stationary frame 1, is shifted out of the locking catch elements 23a to 23c counter to the spring force 27 by means of an actuating stop 38. A bearing block 25 for the locking rocker 21 has a clampable holding foot part 27 which engages into the undercut driving-rod channel 12 of the wing and over which engages the length portion 17 of the driving-rod coupling piece 14 interacting with the locking rocker 21. The locking catch elements 23a to 23c of the driving-rod coupling piece 14 engage over a locking leg 22 of the locking rocker 21. <IMAGE>

Description

The invention relates to a maloperation lock for the actuating linkage of a window, a door or the like which can be brought into several different switching positions, in particular with tilt-and-turn sashes, the wing limbs of which are formed from metal and / or plastic profiles, the actuating linkage being adjustable with the aid of an actuating handle, consisting of a locking rocker held on a bearing block about an axis parallel to a wing leg, pretensioned by spring force in the locking direction, and locking locking elements on a driving rod coupling piece guided in an undercut drive rod channel of the wing legs, into which the locking rocker is engaged by the spring force when the wing is open , while it disengages against the spring force from these locking catch elements when the sash contacts the frame by means of an actuating stop provided or formed thereon.

A maloperation lock of a generic type is known, for example, from DE-OS 25 07 910. It serves to prevent movement of the actuating linkage when the sashes of windows, doors or the like are in the open position, and thereby to prevent incorrect operation, which can endanger the operator Operator could avoid.

The known maloperation lock is designed so that its locking rocker is effective in the area of a connecting rod coupling which cooperates with the driver of an actuating gear which can be moved by the actuating handle.

Therefore, there is also the need to always arrange the known maloperation lock on the handle-side wing leg of the window, the door or the like and to mount its bearing block together with the actuating handle that can be operated by the actuating handle on this wing leg.

A disadvantage of the known maloperation lock is also that it can only be used in operative connection with such actuators that can be operated by the actuating handle and that have a very specific configuration of the driver for the connecting rod coupling piece. This must namely be provided with a driving slot for receiving the bolt on the connecting rod attached coupling piece that it receives a fork-shaped shape because the locking rocker of the mishandling device lock can only come into operative connection with such a fork slot via molded locking bars.

The latter disadvantage does not have a maloperation lock known from DE-OS 31 51 223. However, it must also be installed in the installation area of the actuating gear that can be operated by the actuating handle, that is, always assigned to the wing leg on the handle side.

The object of the invention is to provide a maloperation lock of the generic type, which can be easily assembled with the actuating linkage of window and door fittings or the like. Also at points of the sash remote from the actuating handle or actuating gear, and which consists of a few functional parts which are themselves can be installed in a space-saving manner without special machining of the wing profile, for example, the provision of recesses or holes is required.

This object is achieved according to the invention in that, according to the characterizing part of claim 1, the bearing block for the locking rocker has a holding foot part which engages in the undercut drive rod channel of the wing and which can be clamped in place on the wing in that the longitudinal section of the driving rods which cooperate with the locking rocker Coupling piece overlaps the holding foot part of the bearing block and is received in a longitudinal groove of the same, that the locking rocker is anchored in the bearing block above the holding foot part and outside the connecting rod channel, and the longitudinal groove in the holding foot part and the connecting rod coupling piece overlaps with its actuating leg, and that a locking arm of the locking rocker is guided by means of a connecting arm angled from the free end of the actuating arm in a recess laterally adjoining the longitudinal groove of the bearing block and above this recess by the locking locking elements of the Trei rod coupling piece is overlapped.

By pushing the pedestal and the connecting rod coupling piece together into the espagnolette channel of the wing, not only is the space-saving accommodation of the misuse lock in the wing achieved, but the simple clamping of the pillow block is also ensured, as is the functional reliability of the misuse lock, if the coupling piece is used when carrying out the installation process the drive rods of the actuating linkage have been properly engaged.

According to claim 2, it has also proven itself in a further development of the invention that the connecting rod coupling piece has at least at its two ends _ near the connection points with the connecting connecting rods of the actuating linkage _ a guide cross section adapted to the cross section of the undercut connecting rod channel, while its length section located therebetween offset on the side, so is narrower than the overall cross section of the drive rod channel, the holding foot part and an adjoining terminal block of the bearing block being able to be accommodated in the free space of the drive rod channel formed next to this length section.

According to another important development measure of claim 3, the invention provides that the locking latch elements are formed on the underside of a laterally projecting longitudinal bar of the connecting rod coupling piece, which overlaps the recess of the bearing block which laterally adjoins the longitudinal groove of the holding foot part.

In this way it is possible to use the locking rocker with relatively small structural dimensions, in particular parallel to the direction of movement of the connecting rod coupling piece.

The functionally reliable definition of the maloperation lock within the undercut drive rod channel of the wing can be effected in accordance with the invention in accordance with claim 4 in that the terminal block of the bearing block is provided with a lower grip bar and a grip bar for a single undercut area of the drive rod channel and that clamping screws or the like in the grip bar. to sit.

The subject matter of the invention is explained in detail below with reference to a drawing.

• Fig. 1 in räumlicher Gesamtansicht ein Drehkippfenster mit zugeordneter Fehlbedienungssperre,
• Fig. 2 den in Fig. 1 mit II gekennzeichneten Teilbereich des Fensterflügels etwa in natürlicher Größe, wobei die Fehlbedienungssperre in Seitenansicht zu sehen ist,
• Fig. 3 in größerem Maßstab einen Schnitt entlang der Linie III-III in Fig. 2 bei in Schließlage am Blendrahmen anliegendem Flügel,
• Fig. 4 eine der Fig. 3 entsprechende Schnittdarstellung, jedoch bei gegenüber dem Blendrahmen geöffnetem Flügel,
• Fig. 5 in größerem Maßstab einen Schnitt entlang der Linie V-V in Fig. 2 und
• Fig. 6 in größerem Maßstab einen Schnitt entlang der Linie VI-VI in Fig. 2.

It shows

• 1 is an overall spatial view of a tilt and turn window with an associated maloperation lock,
• 2 shows the part area of the window sash marked II in FIG. 1 approximately in natural size, the incorrect operation lock being seen in a side view,
• 3 shows a section on a larger scale along the line III-III in FIG. 2 with the sash resting in the closed position on the frame,
• 4 is a sectional view corresponding to FIG. 3, but with the sash open relative to the frame,
• Fig. 5 on a larger scale a section along the line VV in Fig. 2 and
• 6 is a section on a larger scale along the line VI-VI in Fig. 2nd

Fig. 1 of the drawing shows, as an application example of the invention, a tilt and turn window with a frame 1, in which a wing 2 is held on the one hand by an undetectable corner bearing 3 and on the other hand by a likewise not recognizable tilt bearing 4 about a lower, horizontal axis.

Around the corner bearing 3 and an upper pivot bearing 5, however, the wing 2 can also be opened relative to the frame 1 about a lateral, vertical axis in the rotational position.

The tilt opening position of the wing 2 is limited by an opening device 6, which is held in the pivot bearing 5 on the frame 2 and can be coupled to the wing 2 to open the latter.

For locking and unlocking the closed wing 2 on the frame 1, for engaging and disengaging the tilting bearing 4 and for coupling and uncoupling the opening device 6, the wing 2 is a driver rod fitting 7 installed, the actuating linkage 10 can be moved by an actuating handle 8 via an actuating gear 9 coupled therewith.

Frame 1 and sash 2 preferably have legs made of metal and / or plastic hollow profiles.

So that incorrect operation of the connecting rod fitting 7 or its actuating linkage 10 is prevented via the actuating handle 8 as soon as the sash 2 is brought into the tilting or rotating opening position relative to the frame 1, the actuating linkage 10 is assigned an incorrect operating lock 11.

The arrangement, structure and mode of operation of the maloperation lock 11 can be seen from FIGS. 2 to 6 of the drawing.

Already from Figure 1 of the drawing it is apparent that the actuating linkage 10 of the drive rod fitting 7 on the wing 2 is guided along the wing legs made of metal and / or hollow plastic profiles in drive rod channels 12 which are open on one long side.

3 to 6 of the drawing, it can be seen that these drive rod channels 12 have an undercut configuration in the wing legs, for example, because they are limited, for example, by two mutually parallel, angular or hook-shaped profile webs 13 whose free angles - or hook legs are facing each other. The drive rod channels 12 are thereby given an approximately T-shaped or dovetail-shaped, free guide cross section.

The cross section of the actuating linkage 10 of the connecting rod fitting 7 to be accommodated in the connecting rod channel 12 is at least adapted to the free cross section of the connecting rod channel 12 so that the Actuating linkage 10 receives a positive longitudinal sliding guide.

From Fig. 1 of the drawing it can be seen that the misuse lock 11 cooperates with the actuating linkage 10 of the driving rod fitting 7. The maloperation lock 10 has a connecting rod coupling piece 14 which can be brought into actuating connection at least at one of its two ends with the actuating linkage 10 of the connecting rod fitting 7. In the exemplary embodiment according to FIGS. 2 and 6 of the drawing, this connecting rod coupling piece 14 only has a guide cross section adapted to the cross section of the undercut connecting rod channel 12 in the vicinity of its two ends. In other words, it is provided with guide foot parts there, which have projecting guide strips 15 on both longitudinal sides, which can engage under the angular or hook-shaped profile strips 13 of the drive rod channel 12 in a form-fitting manner.

In the longitudinal section located between the two guide foot parts or guide webs 15, the connecting rod coupling piece 14 is formed laterally offset, namely its width is reduced. A certain section 16 of this length section has a profile width which is only narrower than the width of the open longitudinal gap between the profile webs 13 by a necessary amount of play. In contrast, the remaining section 17 of this length section is again brought to a profile width, for example by a one-sided shoulder 18, which is dimensioned approximately one third narrower than the width of the section 16.

Over the length of the section 17, a longitudinal gap 19 of the drive rod channel 12 is kept free when the drive rod coupling piece 14 is inserted into the undercut drive rod channel 12 on the wing 2 between one of the angular or hooked profile webs 13 and the cross section of the drive rod coupling piece, as is the case can be seen in particular from FIGS. 2 and 5 of the drawing.

In addition to the connecting rod coupling piece 14, the maloperation lock 11 also includes a locking rocker 21, which can be tilted on the wing 2 about an axis 20 parallel to a wing leg and which can cooperate via a locking leg 22 with locking latching elements 23a, 23b which act on the connecting rod coupling piece 14 are arranged or formed and can be pushed relative to the locking rocker 21 into several, for example three, different switching positions.

The locking rocker 21 is held with an actuating arm 24 such that it can be tilted about the axis 20 in a bearing block 25, an angled arm 26 being angled from the free end of the actuating arm 24, which in turn carries the locking arm 22 at its other end, which at least approximately parallel to it Actuating leg 24 extends, as can be seen in FIGS. 3 and 4.

The bearing block 25 has an integrally formed holding base part 27 with a cross-sectional shape such that it can be inserted into the drive rod channel 12 of the wing 2, as can also be seen particularly clearly from FIGS. 3 and 4. In one piece on this holding base 27 there is a terminal block 28 on the bearing block 25, the cross-sectional shape of which can be seen in FIG. 5. The terminal strip 28 has an approximately C-shaped cross-sectional shape with a profile part 29 which can be accommodated in the longitudinal gap 19 between the connecting rod coupling piece 14 and the connecting rod channel 12, and a lower grip web 30 projecting therefrom and a further grip web 31 protruding therefrom.

While the lower grip web 30 underpins the free leg of the angular or hook-shaped profile web 13 delimiting the longitudinal gap 19, the grip web 31 is located above the same, as is clearly shown in FIG. 5. Clamping screws 32 are seated in the overlap web 31, which can be clamped against the upper side on the free leg of the angular or hook-shaped profile web 13 and thereby fix the bearing block 25 as a whole against displacement within the drive rod channel 12 on the wing 2.

While the locking rocker 21 is held with its axis 20 in the bearing block 25 above the holding foot part 27 and thus outside the drive rod channel 12, as can be seen in FIGS. 3 and 4, the holding foot part 27 is provided with an upwardly open longitudinal groove 33, in which the connecting rod coupling piece 14 can be received with that area of its section 17 which is provided with the locking catch elements 23a and 23b. This area of the longitudinal section 17 on the connecting rod coupling piece 14 is designed so that its lower longitudinal surface in the longitudinal groove 33 is approximately at the same level as the outer boundary surface of the free legs on the angular or hook-shaped profile webs 13, such as the one 3 and 4 illustrate.

From this it can also be seen that the locking rocker 21 overlaps the longitudinal groove 33 in the holding foot part 27 and the region of the connecting rod coupling piece 14 received therein with its actuating leg 24 in the transverse direction. The connecting leg 26 and the locking leg 22 of the locking rocker 21, on the other hand, are guided in a recess 34 of the bearing block 25 which laterally adjoins the longitudinal groove 33 and is provided above the holding foot part 27 and outside of the drive rod channel 12.

The locking latch elements 23a and 23b are provided on the underside of a sideways cantilevered profile strip 35 of the connecting rod coupling piece 14, in such a way that they protrude in the region of the recess 34 into an angular shoulder 36 on the bearing block 25, which extends approximately over the effective one Engagement depth of the locking leg 22 of the locking rocker 21 extends, as FIGS. 3 and 4 make clear.

A spring 37 is supported on the one hand against the bearing block 25 and on the other hand engages on the underside of the actuating leg 24 of the locking rocker 21. It strives to press the locking rocker 21 into its locking engagement position relative to the locking locking elements 23a and 23b on the connecting rod coupling piece 14, as can be seen in FIG. 4 of the drawing. This is always the case when the sash 2 is moved from the closed position into an open position with respect to the frame 1.

However, if the wing 2 is brought into the closed position relative to the frame 1, as illustrated in FIG. 3, then the actuating leg 24 of the locking rocker 21 runs against a boundary edge 38 of the adjacent frame leg and is thereby brought into the actuating position against the force of the spring 37 brought to Fig. 3. As a result, the locking leg 22 of the locking rocker 21 comes with the locking locking elements 23a and 23b of the connecting rod coupling piece 14 out of blocking engagement. The connecting rod coupling piece 14 and consequently also the associated actuating linkage 10 of the connecting rod fitting 7 can now be moved relative to the shift lock 11 in any possible switching position.

2 that the locking rocker 21 of the maloperation lock 11 can be used with a relatively small overall width because it receives optimal guidance and support on both the pedestal 25 via the axis 20 and the recess 34 and therefore also in its blocking position can safely absorb higher switching forces.

So that the shift lock 11 can be mounted on the wing 2 as required in the installation area of the actuating gear 9, which can be moved by the actuating handle 8, it is possible to provide the connecting rod coupling piece 14 with an engagement loop 39, into which a driving lug 40 of the actuating gear is then fitted 9 is indented (Fig. 2).

In any case, the maloperation lock 11 can be mounted on the wing 2 without mechanical processing, for example notches or bores, having to be made in the respective installation area.

It is also worth mentioning that the connecting rod coupling piece 14 with the holding base part 27 of the bearing block 25 can be held in a form-fitting longitudinally slidable connection at least for the installation process on the wing 2, as is indicated in FIGS. 3 and 4 by dash-dotted lines. These, e.g. formed by undercut parts, holding connection only needs to be effective in a certain sliding position of the connecting rod coupling piece relative to the bearing block 25, preferably in its central sliding position, which then by the locking engagement of the locking leg 22 of the locking rocker 21 in an additional, middle locking locking element 23c on the connecting rod coupling piece 14 is automatically fixed during the installation process.

Claims (4)

1. Foolproofing for actuating linkage movable into a number of different operative positions and of use for a window or door or the like, more particularly of the kind having turn-tilt panels having frame members preferably in the form of metal and/or plastics sections, the actuating linkage (10) being movable by means of an operating handle (8) comprising: a pivoting latch (21) disposed on a mounting (25) for tilting around a pivot (20) which is parallel to a panel frame member and biased in the closing direction by spring means (37); and latching members (23a, 23b, 23c) on a positioning bar coupling member (14) guided in an undercut channel (12) in the panel (2), the pivoting latch (21) being engaged in the latching members (23a, 23b, 23c) by the spring means (37) when the panel (2) is open, whereas when the same is in engagement with the fixed frame an actuating abutment (38) devised thereon keeps the pivoting latch (21) disengaged from the latching members (23a, 23b, 23c) against the force of the spring means (37), characterised in that the mounting (25) for the pivoting latch (21) has a retainng foot (27) which engages in the undercut channel (12) in the panel (2) and which can be clamped fast (32) in its assembly position on the panel (2);

That longitudinal part (17) of the positioning bar coupling member (14) which co-operates with the pivoting latch (21) engages over the retaining foot (27) of the mounting (25) and is received in a longitudinal groove (33) therein (Figs. 3 and 4);

The pivoting latch (21) is secured (20) in its mounting (25) above the retaining foot (27) and outside the channel (12) and engages over the longitudinal groove (33) and over the coupling member (14) by way of its actuating arm (24), and

A locking arm (22) of the latch (21) is guided, by means of a connecting arm (26) bent from the free end of the actuating arm (24), in a recess (34) merging laterally into the longitudinal groove (33) and the latching members (23a, 23b, 23c) engage over the locking arm (22) above the recess (34).

2. Foolproofing according to claim 1, characterised in that the coupling member (14) has at least at both its ends a guide cross-section (15-15) adapted to the cross-section of the undercut channel (12) while intermediate longitudinal parts (16, 17) are offset laterally, the retaining foot (27) and a clamping ledge (28) of the mounting (25), into which ledge (28) the foot (27) merges, being receivable in the space, adjacent a longitudinal part (17), in the channel (12) (Figs. 3 to 5).

3. Foolproofing according to claim 1 and/or 2, characterised in that the latching members (23a, 23b, 23c) are devised on the underside of a laterally projecting longitudinal ledge (35) of the coupling member (14), such ledge extending over the recess (34) in the mounting (25) (Figs. 3 and 4).

4. Foolproofing according to any of claims 1 to 3, characterised in that the clamping ledge (28) of the mounting has a web (30) engaging under, and a web (31) engaging over, an undercut zone of the channel (12) and clamping screws (32) or the like are disposed in the last-mentioned web (31).

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