EP0247281B1 - Locking device against the unauthorized opening of windows, doors or the like - Google Patents

Abstract

1. A device for locking the moving member (4) of a window or door or the like against unauthorised opening, such member being lockable in its closure position on the fixed frame (3) by cams (6) or the like which engage behind closure members and which are actuated by a positioning bar device and being selectively movable, by way of pivot parts adapted to be changed over or alternately engaged or disengaged by the positioning bar device, into two different open positions, for example, a turned-open position and a tilted-open position, a slide (10) which slides on a baseplate (11) being provided on the fixed frame and carrying an abutment (20), the same projecting parallel to the frame plane and being disposed on the room side before the movement path of a cam or the like of the positioning bar device, the abutment (20) being movable parallel to the movement path of the cam or the like from a normal inoperative position into, and securable in, at least one (operative) locking position associated with the two open positions, characterised in that the slide (19) carrying the abutment (24) carries a securing member (25, 28 respectively) which is operative transversely to the direction of movement of the slide and by means of which the slide (19) can be coupled both in its normal position (Figs. 1 and 3) and in each locking position (Figs. 2 and 4) with fixing means (17a, 17b; 17d, 17c; 17b, 17c respectively) fixedly disposed on the baseplate (11).

Description

The innovation relates to a locking device against unauthorized opening of the sash of windows, doors or the like, which can be locked on the one hand by means of a connecting rod fitting in its closed position on the fixed frame by means of cams or the like engaging behind locking pieces, and on the other hand can be changed or alternately by the connecting rod fitting articulated parts that can be engaged and disengaged in two different opening positions, e.g. B. in a rotary opening position and a tilt opening position can be brought, in which on the fixed frame a sliding on a base plate is provided which carries a parallel to the frame plane and on the room side in front of the path of movement of a cam or the like. Of the drive rod fitting, which carries Paraiiei-to the path of movement of the cam or the like. From an ineffective basic position at least in one of the two open-switch positions assigned blocking position and can be fixed therein.

A locking device of this type is already known from DE-GM 19 83 433. It is attached in the form of a locking piece serving as a turnstile to the fixed frame of the window, the door or the like. The slide sliding on the base plate is designed as a lock box, which can be adjusted along the base plate by means of a threaded adjusting screw in such a way that a cam or the like connected to a locking mechanism built into the wing is in the rotary opening position of the locking mechanism either for a shift from the Level of the fixed frame is released or is blocked against such a displacement movement.

The known locking device has a design that not only requires a cumbersome and time-consuming operation, but is also accessible only in a direction extending parallel to the frame plane for the purpose of its operation.

In the case of narrow installation conditions, and in particular in the case of small frame dimensions relative to the adjacent wall reveal, it is therefore necessary to provide the known locking device in an overlying, that is to say always visible, arrangement on the fixed frame. Only in this case is the threaded adjusting screw, which is directed parallel to the plane of the fixed frame and serves as an actuating element, accessible for the purpose of adjusting the slide or the stop carried by it, and only then when the sash assumes its closed position on the fixed frame.

The area of application of the known locking device is therefore considerably restricted. This is obviously also the reason why the known locking device has not become established in practical use.

The innovation is based on the task of creating a locking device of the type specified in more detail above, which is still accessible for its actuation even in narrow installation conditions and which moreover also enables an arrangement which is completely concealed in the rebate space when the sash is in the closed position on the fixed frame is included. When the wing is in the open position, however, the locking device should be easily accessible for the purpose of its actuation.

This object is achieved according to the innovation by the characterizing features of claim 1, according to which the carriage carrying the stop carries a fixing member which is effective transversely to its direction of displacement and which, both in its basic position and in any blocking position, has a fixing engagement provided in a fixed manner on the base plate can be coupled.

A particularly advantageous design for such a locking device is obtained according to claim 2 when the sled with an angled foot part engages in a longitudinal slot of the base plate both longitudinally displaceable and can be displaced transversely to a limited extent, and on the one hand provides the foot part with at least one locking piece on one of its longitudinal surfaces is, on the longitudinal surface of the longitudinal slot facing it in the base plate, on the other hand, a plurality of spaced-apart fixing engagements are assigned, while a fixing piece is provided as a fixing member, via which the locking piece can be positively inserted into one of the fixing engagements.

A design of the locking device has proven itself, in which, according to claim 3, the pressure piece consists of a screw bolt and / or a spring body which is supported or can be supported on the longitudinal surface of the longitudinal slot opposite the fixing engagements. The longitudinal surface of the longitudinal slot interacting with the pressure piece can have a straight course over its entire length, because the fixing member and the fixing engagements are located at points facing away from this longitudinal surface. According to the innovation feature of claim 4, the pressure piece has at its end facing away from the longitudinal slot of the base plate a tool engagement, for. B. a hexagon socket for a socket wrench, by means of which it can be rotated for the purpose of axial adjustment.

For a permanent faultless leadership behavior of the locking device is proposed according to the invention that the foot part of the carriage is connected to the underside of the base plate with a support plate which has its abutment on both sides of the longitudinal slot on the base plate. In this way, tilting forces acting on the slide are safely absorbed by the base plate.

A design of the locking device has proven particularly useful, in which the fixing interventions of the base plate according to claim 6 consist of projections protruding from the side into the longitudinal slot in a cam-like manner, which are assigned complementary depressions on the facing side surface of the foot part. Each setting position of the slide can be assigned two projections and two depressions on the base plate, so that a stable position fixation of the slide is permanently guaranteed. It is particularly simple if, according to claim 8, the depressions are each formed by the end faces of the foot part facing away from one another and if, according to claim 9, both the projections and the depressions are provided with support surfaces inclined towards one another.

Any right and left stop of the locking device can be easily achieved if the base plate and slide are each designed symmetrically to a transverse plane.

The new locking device is not only suitable for use on windows or doors with a tilt and turn sash. Rather, it can also be used in other window types in which the sash can be moved from its closed position to two different opening positions and is actuated by means of an espagnolette fitting which can be brought into three different switching positions.

Windows of this type can be equipped, for example, with tilt-and-swing doors, folding-swing doors, turn-and-turn wings or also parallel-adjustable sliding and tilting doors.

• Fig. 1 in Seitenansicht und etwa natürlicher Größe die Sperrvorrichtung bei Rechtsanschlag an einem Fenster in ihrer - unwirksamen - Grundstellung,
• Fig. 2 die Sperrvorrichtung nach Fig. 1 in ihrer - wirksamen - Blockier-Position,
• Fig. 3 die Sperrvorrichtung in der Seitenansicht bei Linksanschlag und in ihrer - unwirksamen - Grundstellung,
• Fig. 4 die Sperrvorrichtung nach Fig. 3 in ihrer - wirksamen - Blockier-Position,
• Fig. 5 die Sperrvorrichtung nach Fig. 2 in Pfeilrichtung V gesehen,
• Fig. 6 in größerem Maßstab einen Schnitt entlang der Linie VI-VI in Fig. 5 bei gegen Verschiebung blockiertem Schlitten,
• Fig. 7 eine derfig. 6 entsprechende Darstellung, jedoch bei zum Verschieben ausgerücktem Schlitten,
• Fig. 8 ein der Fig. 6 entsprechende Darstellung, jedoch in baulich abgewandelter Ausgestaltung und
• Fig. 9 in größerem Maßstab einen Schnitt entlang der Linie IX-IX in den Fig. 1 und 2.
• Die in der Zeichnung dargestellte Sperrvorrichtung 1 wird beispielsweise in ein Drehkippfenster oder eine Drehkipptür 2 eingebaut, das bzw. die den feststehenden Rahmen 3 und den zugehörigen Flügel 4 umfaßt.

the subject of the innovation is shown in exemplary embodiments in the drawing. It shows

• 1 in side view and approximately natural size, the locking device at the right stop on a window in its - ineffective - basic position,
• 2 the locking device according to FIG. 1 in its - effective - blocking position,
• 3 shows the locking device in a side view with a left stop and in its - ineffective - basic position,
• 4 in its - effective - blocking position,
• 5 seen the locking device of FIG. 2 in the direction of arrow V,
• 6 shows a section on a larger scale along the line VI-VI in FIG. 5 with the slide blocked against displacement,
• Fig. 7 is a derfig. 6 corresponding representation, but with the slide disengaged for displacement,
• Fig. 8 is a representation corresponding to FIG. 6, but in a structurally modified configuration and
• 9 shows a section on a larger scale along the line IX-IX in FIGS. 1 and 2.
• The locking device 1 shown in the drawing is installed, for example, in a tilt-and-turn window or a tilt-and-tilt door 2 which comprises the fixed frame 3 and the associated wing 4.

Fixed frame 3. and wing 4 of the tilt-and-turn window 2 are made, for example, from light metal or plastic hollow profiles.

In the window or door 2, an espagnolette fitting is installed, in which 4 espagnolettes 5 are guided longitudinally on the wing and carry cams 6 or the like on their side facing the fixed frame 3, soft with seated on the fixed frame - not shown - Locking pieces can cooperate to lock the wing 4 in its closed position on the fixed frame.

Via the connecting rods 5 of the connecting rod fitting, joint parts between the sash 4 and the fixed frame 3 can also be mutually engaged and disengaged, in such a way that the sash 4 can be opened relative to the fixed frame 3 either about a laterally perpendicular axis in the rotational position . or can be opened in a tilted position about a lower horizontal axis.

• die Verschluß-Schaltstellung V
• die Drehöffnungs-Schaltstellung D und
• die Kippöffnungs-Schaltstellung K.

In order to be able to fulfill all of the above-mentioned functions, the drive rods 5 of the drive rod fitting can be moved in three different switching positions relative to the wing 4, namely

• the shutter switch position V
• the rotary opening switch position D and
• the tilt opening switch position K.

In the closed switch position, the drive rods 5 of the drive rod fitting take up a switch position, for example, which is identified by 6V in FIGS. 1 to 4 on the basis of the cam 6. The rotary opening switch position corresponds to position 6D, while the tilt opening switch position is identified by position 6K.

The cams 6 seated on the wing-side drive rods 5 are assigned fixed locking pieces on the fixed frame 3, as already mentioned above. This in such a way that the locking pieces are each engaged in the position 6V by the cams 6 and thus the wing 4 is locked in its closed position on the fixed frame 3 of the window or the door 2.

In positions 6D and 6K, however, the cams 6 are disengaged from the frame-side locking pieces, so that the wing 4 can be opened relative to the fixed frame 3 either in the rotational position or in the tilted position. In order to enable both the pivot opening and the tilt opening of the wing 4 unhindered, the locking device 1 installed in the region of the closure side of the window or the door 2 on the fixed frame 3 must each assume the basic position shown in FIGS. 1 and 3.

On the other hand, should an unauthorized movement of the wing 4 in the rotary opening position be blocked then it is necessary to bring the locking device 1 into the blocking position, as can be seen in FIGS. 2, 4 and 5.

The locking device 1 shown in FIGS. 1 to 9 of the drawing has a base plate 11 which can be anchored to the fixed frame 3 of the window or door 2, for example in an undercut profile groove 7 which is approximately C-shaped in cross section. For this purpose, a hook bar 12 molded onto the base plate 11 engages under an angular web 8, the undercut profile groove 7, while a mirror-image angular web 9 of the undercut profile groove 7 can each be gripped by clamping screws 13, which are axially adjustable in the base plate 11, as is clearly shown in FIG Fig. 9 can be seen.

A longitudinal slot 14 is formed in the base plate 11 of the locking device 1, one of which, namely the rear, longitudinal surface 15 has a straight course. The opposite longitudinal surface 16 of this longitudinal slot, on the other hand, is provided at several, for example four, longitudinally distributed locations with projections 17a, 17b, 17c and 17b projecting from the side into the longitudinal slot 14 in such a way that these projections 17a to 17d are the width of the Constrict the longitudinal slot 14 in certain areas to a predetermined minimum dimension 21.

An angled foot part 18 of a slide 19 engages in the longitudinal slot 14 of the base plate 11 from above. This foot part 18 has a width 20 which is dimensioned somewhat smaller than the minimum width 21 of the longitudinal slot 14 narrowed by the cams 17a to 17d.

On the underside of the base plate 11, a flat depression 22 is provided in the direct connection to the longitudinal slot 14, in which a support plate 23 is received, with which the foot part 18 of the slide 19 is connected, preferably a fixed connection. By means of this support plate 23, the carriage 19 is held in connection with the base plate 11, in such a way that the base plate 23 is securely supported in any case following the two longitudinal surfaces 15 and 16 longitudinal slots 14 on the upper boundary surface of the flat recess 22. The carriage 19 carries on its upper side a stop 24 which, in the installed state of the locking device 1, projects parallel to the plane of the fixed frame 3 against the folded surface of the wing 4, as can be clearly seen in FIGS. 6 and 8.

The stop 24 on the slide 19 of the locking device 1 is assigned to one of the cams 6 or the like, which are seated on a drive rod 5 of the drive rod fitting installed in the wing 4. The assignment of the stop 24 or the locking device 1 to a cam 6 or the like, which is seated on the drive rod 5, which is displaceably guided along the closure side of the wing 4, is preferred. However, it would also be conceivable to assign the locking device 1 with the stop 24 to a cam 6 or the like, which sits near a lock-side corner of the wing 4, but on a drive rod 5 which is displaceable transversely to this lock side on the wing 4.

In the - ineffective - basic position of the locking device 1, the slider 19 with the stop 24 assumes the relative position to the base plate 11 shown in FIG. H. it is assigned to the locking switch position 6V of the cam 6 or the like. The same - ineffective - basic position of the slide 19 with the stop 24 relative to the base plate 11 when the wing stops to the left can be seen in FIG. 3 of the drawing.

2 and 4 of the drawing, the blocking position of the slide 19 with the stop 24 relative to the base plate 11 is shown for right and left stop. In this case, the slide 19 with the stop 24 is in a position which is assigned to the switching position 6D of the cam 6 or the like.

In the switching position 6D of the cam 6 or the like, which - as already mentioned above - is assigned to the rotary opening switching position of the connecting rod fitting, the wing 4 cannot be opened relative to the fixed frame 3 because the cam 6 or the like cannot be moved past the stop 24 of the slide 19 of the locking device 1.

In the closed switch position 6V of the cam 6 or the like, opening of the wing 4 relative to the fixed frame 3 of the window 2 is also not possible because all other cams 6 or the like engage behind the locking pieces which are usually located on the fixed frame 3 .

Only in the switch position 6K of the cams 6 or the like is it possible to open the sash 4 relative to the fixed frame 3 of the window 2, because then the cams 6 or the like assigned to the usual locking pieces are disengaged from them and, moreover, the the locking device 1 assigned cam 6 or the like. is in the switching position 6K. Opening the sash 4 relative to the fixed frame 3 of the window 2 by a tilting movement is therefore not hindered by the locking device 1.

Both in the - ineffective - basic positions shown in FIGS. 1 and 3 and in the - effective - blocking positions shown in FIGS. 2 and 4, the slide 19 carrying the stop 24 is fastened by means of a fixing member 25 via its foot part 18 in Longitudinal slot 14 of the base plate 11 is fixed. For this purpose, the fixing member 25 seated in the slide 19, which according to FIGS. 1 to 7 is formed by a screw bolt acting as a pressure piece, acts on the longitudinal surface 15 of the longitudinal slot 14 of the base plate 11, as is clearly shown in FIGS. 1 to 4 and 6 reveal. By means of this fixing member 25, the foot part 18 of the slider 19 is in the form of a latching piece between two cams 17a and 17b (FIG. 1) or 17d and 17c (FIG. 3) or between the two cams 17b and 17c (FIGS. 2 and 4) across from it possible direction of displacement indented and thus blocked against displacement.

In order in any case to obtain a play-free fit of the foot part 18 of the slide 19, which acts as a pressure piece with the projections 17a to 17b, it is advantageous to have both the projections 17a to 17b with mutually inclined support surfaces 26 and the end faces 27 of the pressure piece interacting therewith providing foot portion 18 inclined to each other. Via the fixing member 25, the mutually inclined support surfaces 27, which are formed by the end surfaces of the foot part 18, can be practically wedge-like pressed between the support surfaces of two adjacent projections 17a and 17b or 17d and 17c or 17b and 17c and thereby exactly either in the Determine the basic position (FIGS. 1 and 3) or in the blocking position (FIGS. 2 and 4) of the slide 19 or of the stop 24 on the base plate 11.

For the purpose of displacing the carriage 19 with the stop 24 within the longitudinal slot 14 of the base plate 11, it is necessary to first loosen the fixing member or the screw bolt 25, that is to say to bring them into a sufficiently large distance from the longitudinal surface 15 of the longitudinal slot 14. Then the slider 19 is displaced with its foot part 18 transversely to the course of the longitudinal slot 14 away from the longitudinal surface 16 thereof and against the longitudinal surface 15. As a result, the foot part 18, which acts as a latching piece with its support surfaces 27, disengages from the projections 17a, 17b or 17b, 17c or 17b, 17c. Now the slide 19 can be displaced with the stop 24 in the longitudinal direction of the longitudinal slot 14 of the base plate 11 and thus moved from the respective basic position into the blocking position or from the blocking position into the respective basic position. Then the fixing member or the screw 25 is brought back against the longitudinal surface 15 of the longitudinal slot 14 and the foot part 18 of the slider 19 between the projections 17a, 17b or 17d, 17c or 17b, 17c on the base plate 11, as defined that make FIGS. 1 to 4 and 6 clear.

8 also shows that the fixing member for the carriage 19 does not necessarily have to be formed by a screw bolt 25 acting as a pressure piece. Rather, it can also consist of an axially displaceably guided bolt 28 which is acted upon by a compression spring 29 supported on the slide 19 or stop 24 and is held by this under pretension against the longitudinal surface 15 of the longitudinal slot 14. For the purpose of adjusting the slide 19, the bolt 28 must then be withdrawn counter to the action of the compression spring 29, so that the foot part 18 of the slide 19 is disengaged from the projections 17a, 17b or 17d, 17c or 17b, 17c by appropriate transverse displacement can be.

In order to allow the withdrawal of the bolt 28 against the force of the compression spring 29, it would be conceivable to provide the bolt 28 with a collar at its end projecting forward from the stop 24, which can be gripped with a pliers-like tool and by the necessary amount can be tightened relative to the carriage 19, in order first to allow the transverse displacement and then the longitudinal displacement of the carriage relative to the base plate 11. However, it would also be conceivable to form a screw surface 30 or a bayonet slot in the slide 19, on which the bolt 28 is supported with a stop 31 under the action of the compression spring 29. By relative rotation of the bolt 28 to the slide 19, the axial displacement of the bolt 28 against the action of the compression spring 29 can be brought about in cooperation with the stop 31 with the screw surface 30 or the bayonet slot, and the bolt 28 can thereby be displaced into its release position. The return of the bolt 28 to its fixative position can take place automatically under the action of the compression spring 28.

Finally, it should also be pointed out that the fixing member, regardless of whether it is designed as a screw bolt 25 or as a spring-loaded bolt 28, can contain a tool engagement, for example an internal hexagon 32, in its end protruding from the carriage 19, with which to actuate the Fixing member a suitable socket wrench can be brought in and out of engagement.

2, 4 and 5 it is also indicated that the base plate 11 and the slide 19 are designed symmetrically with the stop 24 for the optional right and left stop to the transverse plane 10-10.

Claims (10)

1. A device for locking the moving member (4) of a window or door or the like against unauthorised opening, such member being lockable in its closure position on the fixed frame (3) by cams (6) or the like which engage behind closure members and which are actuated by a positioning bar device and being selectively movable, by way of pivot parts adapted to be changed over or alternately engaged or disengaged by the positioning bar device, into two different open positions, for example, a turned-open position and a tilted- open position, a slide (10) which slides on a baseplate (11) being provided on the fixed frame and carrying an abutment (20), the same projecting parallel to the frame plane and being disposed on the room side before the movement path of a cam or the like of the positioning bar device, the abutment (20) being movable parallel to the movement path of the cam or the like from a normal inoperative position into, and securable in, at least one (operative) locking position associated with the two open positions, characterised in that the slide (19) carrying the abutment (24) carries a securing member (25, 28 respectively) which is operative transversely to the direction of movement of the slide and by means of which the slide (19) can be coupled both in its normal position (Figs. 1 and 3) and in each locking position (Figs. 2 and 4) with fixing means (17a, 17b ; 17d, 17c ; 17b, 17c respectively) fixedly disposed on the baseplate (11).

2. A device according to claim 1, characterised in that the slide (19) so engages by way of an angled bottom part (18) in a slot (14) in the baseplate (11) as to be movable lengthwise and to have limited provision for transverse displacement ; the bottom part (18) has on one of its longitudinal surfaces at least one catch element (27) with which a number of spaced-apart fixing means (17a, 17b, 17c) disposed on that longitudinal surface (16) of the slot (14) which is near the catch element (27) are associated ; and the securing member (25, 28 respectively) is in the form of a presser element by means of which the catch element (18, 27) can be engaged positively in one of the fixing means (17a, 17b ; 17b, 17c ; 17b, 17c respectively).

3. A device according to claim 1 and/or 2, characterised in that the presser element (25, 28 respectively) is in the form of a screwthreaded pin (25) and/or a spring member (28, 29) which bears or is adapted to bear on that longitudinal surface (15) of the slot (14) which is opposite the fixing means (17a-17d) (Figs. 6 and 8).

4. A device according to any of claims 1-3, characterised in that the presser element (25, 28 respectively) is formed at its end remote from the slot (14) with tool-engaging means, such as an internal hexagon (32) for an allen key for rotating the pressure member (25, 28 respectively) to adjdust the same axially.

5. A device according to any of claims 1-4, characterised in that the bottom part (18) of the slide (19) is connected on the underside (22) of the baseplate (11) to a support plate (23) bearing thereon on either side of the slot (14) (Figs. 6-8).

6. A device according to any of claims 1-5, characterised in that the fixing means of the baseplate (11) are in the form of cam-like projections (17a-17d ; 26) which extend from the side into the slot (14) and with which companion recesses (18, 27) on the near side surface of the bottom part (18) are associated.

7. A device according to any of claims 1-4, characterised in that two projections (17a; 17b and 17d, 17c and 17b, 17c ; 26) and two recesses (18, 27) are associated with each adjustment position of the slide (19) on the baseplate (11).

8. A device according to any of claims 1-7, characterised in that the recesses (27) are each embodied by those end surfaces of the bottom part (18) which are remote from one another (Figs. 1-4).

9. A device according to any of claims 1-8, characterised in that both the projections (17a-17d ; 26) and also the recesses (18 ; 27) have bearing surfaces (26, 27) inclined towards one another (Figs. 1-4).

10. A device according to any of claims 1-9, characterized in that the baseplate (11) and slide (19) are each symmetrical of a transverse plane (10-10) and are thus adapted for right and left fitting at choice (Figs. 1 and 2; Figs. 3 and 4 respectively).

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