EP0677635A1 - Supplementary security locking mechanism for windows or doors - Google Patents

Abstract

The lock has a bolt (10) and bolt-drive which are connected with relatively little relative movement (9) sufficient for swivelling the handle to as to move the bolt into a non-tilt fastening position. The bolt-drive exerts pressure on the bolt against the force of a restoring spring (13). The restoring spring exerts pressure on the bolt or on a supporting protuberance (14) of the bolt is in the form of a tension or compression spring. The bolt's axis (15) is at right angles to the handle's pivot axis (16). The bolt has two shoulders (17) on each sides of the pivot axis. <IMAGE>

Description

The invention relates to an additional security device for windows or doors, with at least one bolt, which can be adjusted with the handle of a wing fitting from an open position into a tilt protection position or into a locking protection position, with a lock box attached to the frame, in which the bolt in its locking protection position engages with a locking bracket that can be folded on the lock box perpendicular to the frame plane and into which the bolt engages in its anti-tilt position, and with a bolt drive that causes different large displacements of the bolt when the handle is pivoted in opposite pivot directions.

Additional security with the aforementioned features is known from DE 42 00 868 A1. There is a separate bolt for the anti-tilt position and the locking position. Each bolt is permanently connected to the handle. As a result, every movement of the handle leads to opposite movements of the latches. From the middle position of both bolts, which corresponds to the open position, each bolt must be able to be advanced and retracted to the same extent, so that the additional safety device in the longitudinal direction of the bolt is generally relatively large. It is also important that in the known additional security device any malfunction of the permanent connection between the handle and the latches means that the latter can no longer be moved. In particular, they can no longer are moved from their anti-tip position or their locking position to the open position.

In contrast, the invention has for its object to improve an additional security with the features mentioned so that the bolt drive is not a permanent connection between the handle and the bolt, the additional security can get by with a single bolt.

This object is achieved in that the bolt drive and the bolt are coupled with a relative movement play, which is dimensioned at least according to the difference in the bolt displacements.

It is important for the invention that a permanent coupling between the bolt drive and the bolt is avoided. As a result, the bolt is only moved when the bolt drive engages with the bolt after overcoming the relative play. At the same time it is achieved that only a single bolt is acted upon by the bolt drive, which has the advantage with two bolts that the bolt that is not required is left at rest, which also gives the possibility of using a single bolt, which is then used for the engagement of the bolt drive must be trained in a suitable manner. The relative movement between the bolt drive and the bolt must be dimensioned in both adjustment directions determined by the handle so that the desired bolt displacements result. It is therefore necessary that the movement play is dimensioned at least according to this difference in the bolt displacements. The bolt drive can also be designed so that, in addition to the movement play caused by the required bolt displacements, there is further movement play so that not every slight movement of the handle immediately leads to a bolt movement. Such an undesirable bolt shift could have a disruptive effect, namely in the sense of a hindrance of a wing adjustment if the handle is moved slightly during the wing adjustment, for example because the operator is operating Person already applied the handle when adjusting the wing without the wing is already in the end position in which the handle would then have to be actuated.

So that the bolt drive and the bolt can get into the most secure possible mutual engagement and so that the pivoting movement range of the handle can be used as completely as possible to drive the bolt, the additional security is designed so that the relative movement play almost exclusively for the pivoting adjustment of the handle in the sense of a Adjustment of the bolt in its anti-tilt position is provided. The relative movement between the bolt drive and the bolt is therefore determined almost exclusively with regard to the difference in the bolt displacements between the anti-tip position and the locking position.

It is particularly advantageous to design the additional safety device such that the bolt can be acted upon by the bolt drive against the force of a return spring. The return spring supports the return of the handle and, above all, causes the latch to be actively held in its open position regardless of the handle.

In terms of construction, the action of the return spring on the bolt is achieved in that the return spring acts on the bolt or a support projection of the bolt as a tension spring or as a compression spring. As a result, the structural design of the additional fuse can be carried out comparatively freely, the design of the fuse housing in coordination with the bolt drive being unproblematic.

It is advisable to have a single latch. Such a bolt can be designed symmetrically to the bolt drive. The number of parts is reduced. With the same size, the dimensions of the single bolt can be increased in order to improve the stability of the additional security. Such an additional fuse builds perpendicular to the pivot axis of the handle in all directions comparatively small, especially in the direction transverse to the transom axis.

It is particularly advantageous if the locking axis intersects the pivot axis of the handle at right angles. In this embodiment, the dimensions of the additional safety device can be distributed evenly around the pivot axis of the handle, so that the additional safety device is correspondingly compact.

The additional fuse can be designed so that the bolt has two recesses arranged on both sides of the swivel axis, on which the bolt drive engages optionally. As a result, the bolt drive can be arranged so that it is essentially averted from the bolt, so that it does not have to take into account the distance between the pivot axis and the rebate-side wing edge in its design. This distance is usually predetermined and is already largely required for the arrangement of the engagement end of the bolt in the open position of the wing fitting.

In the sense described above, it is also advantageous if the bolt drive has at least one bolt actuating part which is arranged facing away from the engagement side of the bolt next to the pivot axis of the handle. The arrangement of the bolt actuating part next to the pivot axis of the handle is advantageous in terms of the compactness of the additional safety device.

A simple design of the additional securing device can be achieved in that the bolt actuating part acts directly on a bolt or on a thrust part that is relatively movable or rigidly attached to it. The constructive interposition of other components is not necessary.

An embodiment of the additional security is that the bolt actuating part is rotatable with respect to the pivot axis and can be brought into engagement by pivoting the handle either with two push parts for two bolts assigned to the two locking positions or with recesses of a single bolt. As a result of the torsion-proof connection of the locking element with the swivel axis, the circular movement of the handle and thus the corresponding circular movement of the bolt actuating element is used directly to generate a pushing movement of the bolt. The thrust part or the recess of a bolt can be used to make it easier to constructively convert the circular movement of the bolt actuating part into a pushing movement of the bolt. In particular, the bolt actuating part can be designed with regard to rolling processes on a pushing part or on a recess. Various configurations are possible.

An advantageous embodiment of the additional security is that the thrust parts are rack sections, and that the bolt actuating part is a gear segment, which can be brought into engagement by pivoting the handle with a rack section of two bolts or with two rack sections of a single bolt.

The design of the bolt actuating part as a toothed segment limits the design effort for the additional security to the necessary amount to adjust the bolt to a limited extent. The gear segment and the rack sections can be made stable enough to transmit the required actuation forces.

The additional safety device can be advantageously configured in that the bolt actuating part is an essentially L-shaped cam and that there are two linearly guided thrust parts, each of which acts on a separate bolt. The L-shaped cam is particularly small. The sliding parts can be built between him and the two bars in a stable manner and with small passages.

The additional securing device can furthermore be designed in such a way that the bolt actuating part is a drive disk with a tapered projection which interacts with thrust parts of two bolts designed as curved parts. The drive pulley is a very simple component, as are the curve pieces interacting with it, which can be attached to the two bolts in a suitable position. There can be a very revealing design of the rolling sections achieve, in particular longer rolling distances in the sense of a comparatively low wear.

The additional safety device can also be designed such that the bolt actuating part is an essentially T-shaped cam which has different lengths of roof leg protrusions for identically designed recesses of a bolt. As a result of the different lengths of the roof leg projections, a differently large bolt feed can be achieved.

The bolt can be made completely symmetrical with respect to its longitudinal axis if the bolt drive also takes into account the need for the bolt displacements of unequal size.

A further embodiment of the additional securing device can consist in that two V-shaped angle levers are arranged to be pivotable to a limited extent in the angle apex, one angle leg of which can be acted upon by a locking recess and the other angle leg of which can be acted upon by a drive disk with a driver parallel to the pivot axis. Different dimensioning of the length of the angled legs and different design of the bolt recess allow far-reaching adaptation options of the construction with regard to the required bolt feeds.

The additional security can be designed in such a way that a locking rack is a rack guided transversely in the locking plane, which cooperates via inclined surfaces with corresponding inclined surfaces of locking recesses and can be acted upon by a toothed drive pulley. The ends of the toothed racks and the bolt recesses can lie against each other over a large area, whereby rolling movements are avoided. The wear is accordingly low.

Fig.1

eine Ansicht einer ersten Ausführungsform einer Zusatzsicherung im angebauten Zustand, jedoch ohne Flügel- und Blendrahmen,

Fig.1a

eine Untersicht des flügelrahmenseitigen Teils der Zusatzsicherung ohne Bodenplatte,

Fig.1b

den Schnitt A-C der Fig.1a,

Fig.1c

den Schnitt D-E der Fig.1b,

Fig.1d,1e

der Fig.1 ähnliche Aufsichten bei unterschiedlich weit vorgeschlossenem Riegel,

Fig.1f

eine Seitenansicht der Zusatzsicherung in Richtung A der Fig.1e,

Fig.2a bis 2c

der Fig.1a ähnliche Darstellungen einer zweiten, der Fig.1 bis 1c ähnlichen Ausführungsform einer Zusatzsicherung, jedoch mit zwei Riegeln in jeweils unterschiedlichen Riegelstellungen,

Fig.3a bis 3c

den Fig.2a bis 2c ähnliche Darstellungen einer dritten Ausführungsform einer Zuatzsicherung,

Fig.4a bis 4c

den Fig.2a bis 2c ähnliche Darstellungen einer vierten Ausführungsform einer Zusatzsicherung,

Fig.5a bis 5c

den Fig.2a bis 2c ähnliche Darstellungen einer fünften Ausführungsform einer Zusatzsicherung,

Fig.6a bis 6c

den Fig.2a bis 2c ähnliche Darstelllungen einer sechsten Ausführungsform einer Zusatzsicherung, und

Fig.7a bis 7c

den Fig.2a bis 2c ähnliche Darstellungen einer siebenten Ausführungsform einer Zusatzsicherung.

The invention is explained with reference to exemplary embodiments shown in the drawing. It shows:

Fig. 1

a view of a first embodiment of a Additional securing device when installed, but without sash and frame,

Fig.1a

a bottom view of the sash-side part of the additional securing device without a base plate,

Fig.1b

the section AC of Fig.1a,

Fig.1c

the section DE of Fig.1b,

Fig.1d, 1e

1 similar views with the bolt locked to different degrees,

Fig.1f

a side view of the additional fuse in direction A of Fig.1e,

2a to 2c

1a similar representations of a second embodiment of an additional security similar to FIGS. 1 to 1c, but with two bolts in different bolt positions,

3a to 3c

2a to 2c similar representations of a third embodiment of an additional safety device,

Fig.4a to 4c

2a to 2c similar representations of a fourth embodiment of an additional fuse,

Fig.5a to 5c

2a to 2c similar representations of a fifth embodiment of an additional fuse,

Fig.6a to 6c

2a to 2c similar representations of a sixth embodiment of an additional fuse, and

Fig.7a to 7c

2a to 2c similar representations of a seventh embodiment of an additional fuse.

All additional security devices shown in the figures essentially consist of a lock box 11 to be attached to the frame not shown and a fuse housing 33 to be attached to the sash frame (not shown) for one or more bolts 10. With a handle (not shown), a square pin 34 is limitedly pivotally driven, namely usually from a locking position in an open position and from this in the same direction of rotation in a tilt protection position. This results from the fact that the handle must adjust the sash fitting from the closed position into the rotary opening position and into the tilt opening position in order to be able to carry out the desired sash movements. 1 shows the circular area 35 covered by the handle or the olive, as well as the rosette 36 surrounding it, as are used in conventional window fittings.

The bolt 10 interacts with the lock box 11, which has a cup-shaped box body 37 facing the bolt, in the cavity of which the bolt head 38 can be enclosed. The bolt box 37 is fastened with fastening screws through the fastening holes 39. A wall connection plate 40 is provided with fastening holes 41 and one or more spacer plates 42 can be used to compensate for any distances between the wall and the box body 37, the bolt box 37 being screwed to the wall connection plate 40 via fastening screws 43.

A locking bracket 12 is arranged on the box body 37 such that it can be folded vertically to the plane of the frame. The folding axis is or the like from an axle pin 44. educated. It permits the folding movement of the locking bracket 12 e.g. in the folding position shown in Fig.1d. The locking bracket 12 is formed with a longitudinal slot 45 through which the head 46 of the bolt 10 can be pushed until it reaches the position shown in Figure 1d. In this position, the neck 47 of the T-shaped head projection 48 is in the plane of the locking bracket 12, while the head projection 48 is pushed into the pot-shaped box body 7. The bolt 10 can be advanced further so that it assumes the position shown in Fig.1d. He then engages with the head projection 48 and with his outer shoulders 49 a steel plate 50 which covers the cavity of the pot-shaped box body 37 laterally except for an outlet opening 51.

If the bolt 10 assumes the position shown in FIG. 1d, the housing 33 and thus the one with it can be fixed connected wings are neither tilted nor pivoted because the locking engagement in the lock box 11 prevents this. If, in comparison, the bolt 10 is only locked according to FIG. 1e, the head projection 48 can be moved laterally out of the lock case 11 as far as the locking bracket 12 permits. Accordingly, the housing 33 and thus the wing can be tilted, the neck 47, which is thin in diameter, allowing the wing to tilt comparatively far with only a slight folding movement of the locking bracket 12. The tilted state is shown in the side view in FIG. 1f.

From Fig.1f it can be seen that the box body 37 can be underlaid by a compensating plate in order to compensate for any distances to the frame. Fig.1f also shows that the lock box 11 can be covered by a cover 52. The housing 33 of the additional fuse covers the bolt together with a base plate 53, which is e.g. is screwed. 1b shows an attachment hole 54 of the base plate 53. The base plate 53 also has an attachment projection 55 with an attachment hole 56 with which the housing 33 can be attached.

The housing 33 is further provided with bar-parallel guide pieces 57, which are provided on both sides of the bar 10 on the housing walls, and guide the bar 10 between them in such a way that it is movable in the direction of its longitudinal axis 15, but is held longitudinally transversely thereto in the plane of the illustration becomes. Otherwise, the bolt 10 is installed between the base plate 53 and the housing 33 in such a way that the bolt can only be moved in the plane of illustration in FIG. 1a.

The bolt 10 is provided with recesses 17 arranged on both sides of the square 16 forming the pivot axis 15, which recesses overlap the pivot axis 16 approximately as far as the distance of the pivot axis from the rebate-side housing edge 33 '. The length of the latch 10 accordingly determines the width of the housing 33.

On the outside of the recesses 17, a thrust part 18 is arranged in the form of a projection in the direction of a housing wall. A return spring 13 is arranged between a thrust part 18 and a guide projection 57, which tries to push the bolt 10 into the position shown in FIG. 1a. The arrangement of the thrust parts 18 and the springs 13 with respect to the longitudinal axis 15 of the bolt 10 is symmetrical, so that a tilt-free longitudinal guidance of the bolt 10 can be achieved.

On the square 34, a gear segment 19 is arranged non-rotatably. It is held against slipping on the square 34 by the base plate 53 and a ratchet wheel 58 arranged in the housing 33. 1c extends between the base plate 53 and the housing 33 or its ratchet wheel 58. Its toothing 59 projects radially, namely according to FIG. 1a between the recesses 17 and is turned away from the housing side 33 '. The recesses 17 have mutually parallel rack sections 20, into which the gear segment 19 can engage with its toothing 59 if it is rotated accordingly by the handle. The arrangement of the gear segment 19 relative to the gear rack sections 20 is such that a clockwise rotation of the gear segment 19 leads to immediate engagement in the lower gear rack section, while when the gear segment is pivoted counterclockwise, the movement clearance 9 shown in FIG must be before this gear segment 19 engages with the upper rack section 20. This has the consequence that the bolt 10 is advanced to different degrees. The feed from the open position of the bolt 10 shown in FIG. 1a takes place immediately upon rotation in the clockwise direction and thus into the position shown in FIG. 1d, while a rotation in the counterclockwise direction leads to the bolt 10 in the position shown in FIG reached. In this way it is achieved with the help of the movement play 12 that the same bolt 10 reaches its locking position according to FIG. 1d once and the anti-tip position according to FIG. 1e the other time.

2a to 2c, 3a to 3c and 4a to 4c show views of the part of the additional securing device on the sash frame side and the removed housing cover.

FIGS. 2a to 2c show an additional securing device, in which a gearwheel segment 19 is also present as a locking actuating part, which can be designed in the same way as the gearwheel segment 19 of FIGS. 1 to 1f. The design of the additional security with two separate bars 10, 10 'is different. These bolts 10, 10 'are each bolt-shaped and are guided longitudinally within the housing 33 between a respective guide projection 57 and a U-shaped further guide projection 62 which is openly facing the gear segment 19. A further longitudinal guidance of each bolt 10, 10 'results from the longitudinal edges 64 of a recess 63 of a base plate 60 which can be fastened to the window casement frame using fastening holes 61.

The latches 10, 10 'are spring-loaded. Each return spring 13 engages on the one hand on the bolt 10 or 10 'and on the other hand on the housing 33 or on a guide projection 57 which is firmly connected to it. The return spring 13 is a tension spring which the associated bolt 10 or 10' in the in Fig. 2a tries to keep the open position shown.

Each bolt 10, 10 'is provided with a thrust part 18, which is designed as a rack section 20 and can cooperate with the gear segment 19 when it is pivoted with the square pin 34 about the pivot axis 16. While the rack section 20 of the latch 10 is arranged at the end thereof, the rack section 20 of the latch 10 'is located some distance from the end of the latch 10'. As a result, the gear segment 19 comes into engagement with this upper rack section 20 when pivoting counterclockwise only after overcoming a comparatively large relative play of movement, so that the latch 10 'can be advanced correspondingly less far when the handle has completed the above-described swivel adjustment. Fig.2b leaves this in comparison to Fig.2c detect. The latch 10 'is extended a little less than the latch 10.

The embodiments of Figures 3a to 3c and Figures 4a to 4c also, like the embodiments of Figures 2a to 2c, each have two bars 10, 10 ', which are longitudinal, as described for Figures 2a to 2c has been. The design of push parts 18 of these bolts 10, 10 'and the bolt actuating elements interacting therewith is different. 3a and 3c is a substantially L-shaped cam 21 which is arranged in the open position of the square pin 34 or the handle, not shown, with one leg horizontally or parallel to the bolts 10, 10 ', while his other leg protrudes vertically towards the latch 10. The end 21 'of the bolt actuating part is rounded in order to be able to roll on the thrust part 18 with slip. The thrust part 18 is guided in parallel to the bolt and displaceable on the base plate 60 of the additional securing device, specifically with two dowel screws 65, the heads of which overlap a thrust part 18, each of which has a guide slot 66. Each thrust part 18 has a thrust arm 67 with which it engages on the bolt 10 or 10 '. The push member 18 can be connected to the bolt 10 or 10 'in one piece or by a screw connection to it, so that the push member 18 could also pull the bolt 10 or 10' back when the bolt 10 or 10 'in their Open position should be moved. The retraction of the push parts 18 and thus the bolt 10, 10 'is effected in the embodiment shown by the return springs 13, so that the bolt 10, 10' and the associated push part 18 can be in two parts. The return springs 13 are supported on the one hand on a housing projection 68 and on the other hand on a support projection 14 of the thrust part 18, which projects into the vicinity of the square pin 34. The L-shaped cam 21 acts with its leg attached to the square pin 34 on the upper thrust part 18 when the square pin 34 is adjusted in the counterclockwise direction. The bolt 10 'then reaches its anti-tilt position shown in FIG. 3b. If the cam 21 is pivoted clockwise from its position shown in FIG. 3a, it arrives in the position shown in FIG Fig.3c shown position in which the lower thrust member 18 and thus the bolt 10 is moved as far as possible against the force of the return spring 13 so that it assumes the locking position. The differently wide feed of the bars 10, 10 'results from the fact that the cam 21 is able to achieve a greater feed when pivoted clockwise due to its projecting end 21'. The movement of the cam 21 in this pivoting direction is comparatively small.

4a to 4c show two bolts 10, 10 ', each with a pushing part 18. A drive disc 22 is pivotally connected to the square pin 34 and has a tapered projection 23, which is arranged parallel to the bolt in the open position of the additional securing means. When the drive pulley 22 is pivoted with the square pin 34 or the handle connected to it so that it cannot pivot, the projection 23 will come into engagement with a thrust part 18. Each thrust part 18 is provided with an engagement curve 18 ', on which the projection 23 rolls during the rotation of the drive disk 22. Accordingly, the bolt 10 or 10 'is advanced. The feed takes place at different distances because the push part 18 of the bolt 10 is arranged close to the end thereof, while the push part 18 of the bolt 10 'is arranged away from the bolt end. Accordingly, the latch 10 ′ according to FIG. 4b is pushed out of the housing 33 less far than the latch 10 according to FIG. 4c. The different arrangement of the thrust parts 18 correspondingly requires different relative movement play between the projection 23 and a thrust part 18 until mutual engagement. Compression springs 13, which are supported on the housing projection 68, act on the thrust parts 18.

5a to 7c show three different embodiments of additional security devices, each with a single bolt 10. This bolt 10 can interact with the lock case, not shown, as has been described with reference to FIGS. 1 to 1f. The design of the bolt drive is different for the three additional safeguards. According to Fig. 5a to 5c, the bolt drive has a bolt actuating part a substantially T-shaped cam 24 which is pivotally connected to the square pin 34. Depending on the pivoting direction of the handle, the shorter roof leg projection 24 'or the longer roof leg projection 24''comes into contact with the recess 17 of the latch 10, so that the latch 10 is advanced accordingly. Due to the comparatively larger relative play of movement, the shorter roof leg projection 24 'only causes an advance into the position of FIG. 5b, while the longer roof leg projection 24''brings about a further advance of the latch 10 into the position shown in FIG. 5c. So that the pivoting movement of the T-shaped cam 24 can be converted into a feed movement of the bolt 10, the roof leg projections 24 ′, 24 ″ are each rounded and fit into corresponding roundings 69 of the recesses 17 of the bolt 10.

6a to 6c, V-shaped angle levers 25 are provided as a bolt drive. Each angle lever 25 can be pivoted in the region of its angle apex 26 with a lever pivot axis 70 parallel to the pivot axis 16 above the bolt 10 parallel to the latter. The mutually adjacent angle legs 25 ″ protrude into the swivel range of a drive disk 27 of the bolt drive, which is provided with drivers 28 parallel to the swivel axes. Depending on the pivoting direction of the square pin 34, after overcoming the respective play of movement, one or the other angle lever 25 is acted upon by one of the drivers 28 via its angle leg 25 ″ and presses with its other angle leg 25 ′ onto an inclined surface 71 of a recess 17 of the bolt 10. The angle legs 25 'of the two angle levers 25 are of different lengths. Correspondingly, taking into account the inclined position of the inclined surfaces 71 and their distance from the head projection 48, the bolt 10 advances differently. FIG. 6b shows the advancement of the bolt 10 when it is acted upon by the lower bolt 10, which is loaded with a comparatively short angle leg 25 ' 6c shows the action of this bolt 10 with the angle lever 25 having a longer angle leg 25 ″, so that in this way the different locking or tilt protection positions can be achieved. These figures also show the associated pivoting positions of the drivers 28 of the drive pulley 27. The latch 10 is supported with the compression springs 13 in the same way as for the latch 10 of FIGS. 5 a to 5 c, the supporting projections projecting outward from the recesses 17 for this purpose 14 and is guided in the direction of its longitudinal axis by guide projections 57, on which the return springs 13 are also supported with their other ends.

FIGS. 7a to 7c show an additional securing device with a locking element which is designed as a toothed rack 29. This rack 29 is arranged in the locking plane between the locking recesses 17, which have inclined surfaces 31 on which the rack 29 can engage with correspondingly parallel inclined surfaces 30. The actual loading of the recesses 17 with the toothed rack 29 depends on whether this toothed rack 29 is adjusted upwards or downwards by the drive disk 32 when the square pin 34 is pivoted about the pivot axis 16. For this adjustment, the rack 29 is guided parallel to the housing edge 33 '. For this purpose, it has a guide piece 72 with a guide slot 73 which is penetrated by two dowel screws 65, so that the desired parallel guidance results. A drive disk 32 is connected to the square pin 34, which is toothed and adjusts the rack 29 up or down in accordance with the pivoting direction of the square pin 34 or the handle connected to it. With a downward adjustment, a movement of the bolt 10 against the compression spring 13 is immediately effected since the inclined surface 30 of the toothed rack 29 bears against the inclined surface 31. The bolt 10 is moved into the locking position according to FIG. 7c, which in turn corresponds to the position shown in FIG. 1d. If, on the other hand, the toothed rack 29 is shifted upward, the play of movement shown in FIG. 7a must first be bridged until the bolt 10 can be advanced. The bolt 10 then reaches the anti-tilt position shown in FIG. 7b.

Claims (16)

Additional locking device for windows or doors, with at least one bolt (10), which can be adjusted from an open position into a tilt-proof position or into a locking safety position with the handle of a sash fitting, with a lock case (11) attached to the window frame, into which the bolt (10) engages in its locking safety position, with a locking bracket (12) which can be moved on the lock case (11) perpendicular to the frame plane and into which the bolt (10) engages in its anti-tilt position, and with a bolt drive which, when the handle is pivoted in opposite pivoting directions, displaces of different sizes Bolt (10) causes, characterized in that the bolt drive and the bolt (10) are coupled with relative movement play (9) which is dimensioned at least according to the difference in the bolt displacements. Additional locking device according to claim 1, characterized in that the relative play (9) is provided almost exclusively for the pivoting adjustment of the handle in the sense of an adjustment of the bolt (10) into its anti-tipping position. Additional security according to claim 1, characterized in that the bolt (10) can be acted upon by the bolt drive against the force of a return spring (13). Additional safety device according to claim 3, characterized in that the return spring (13) acts on the bolt (10, 10 ') or a support projection (14) of the bolt (10, 10') as a tension spring or as a compression spring. Additional security device according to one of claims 1 to 4, characterized in that a single bolt (10) is present. Additional locking device according to claim 5, characterized in that the locking axis (15) intersects the pivot axis (16) of the handle at a right angle. Additional security according to claim 5 or 6, characterized in that the bolt (10) has two recesses (17) arranged on both sides of the pivot axis (16), on which the bolt drive engages optionally. Additional security according to one of claims 1 to 7, characterized in that the bolt drive has at least one bolt actuating part which is arranged away from the engagement side of the bolt (10) next to the pivot axis (16) of the handle. Additional securing device according to claim 8, characterized in that the bolt actuating part acts directly on a bolt (10) or on a thrust part (18) which is attached to it in a relatively movable or rigid manner. Additional securing device according to claim 8 or 9, characterized in that the bolt actuating part is non-rotatable with respect to the pivot axis (16) and by pivoting the handle either with two push parts (18) assigned to the two securing positions for two bolts (10, 10 ') or with recesses (17 ) a single latch (10) is to be engaged. Additional safety device according to one of claims 1 to 10, characterized in that the thrust parts are toothed rack sections, and in that the bolt actuating part is a gearwheel segment (19) which, by pivoting the handle with one toothed rack section (20), has two bolts (10, 10 ') or with two rack sections (20) of a single bolt (10) can optionally be brought into engagement. Additional securing device according to one of claims 1 to 10, characterized in that the bolt actuating part is an essentially L-shaped cam (21), and that there are two linearly guided thrust parts (18), each of which has a separate bolt (10, 10 ') act upon. Additional securing device according to one of claims 1 to 10, characterized in that the bolt actuating part is a drive pulley (22) with a tapered projection (23) which interacts with thrust parts (18) of two bolts (10, 10 ') designed as curved parts. Additional securing device according to one of claims 1 to 10, characterized in that the bolt actuating part is an essentially T-shaped cam (24) which has different lengths of roof leg protrusions (24 ', 24'') for recesses (17) of the same design which are formed by a bolt (10 ) having. Additional security device according to one of claims 1 to 10 , characterized in that two V-shaped angle levers (25) are arranged to be pivotable to a limited extent in the angle apex (26), one of the angle legs (25 ') with a bolt recess (17) and the other angle leg as the bolt actuating part (25 '') can be acted upon by a drive pulley (27), each with a driver (28) parallel to the pivot axis. Additional security according to one of Claims 1 to 10, characterized in that a rack (29) guided transversely in the bolt plane is arranged as the bolt actuating part, which cooperates via corresponding inclined surfaces (30) with corresponding inclined surfaces (31) of bolt recesses (17) and a toothed drive pulley (32) can be acted upon.

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