WO2002014634A1

WO2002014634A1 - Safety device, for example a child safety lock and a locking device comprising a safety device of this type

Info

Publication number: WO2002014634A1
Application number: PCT/DE2001/002988
Authority: WO
Inventors: Claudia Schreiner
Original assignee: Claudia Schreiner
Priority date: 2000-08-11
Filing date: 2001-08-04
Publication date: 2002-02-21
Also published as: EP1309765A1; CA2419012A1; AU2001279582A1

Abstract

The invention relates to a novel safety device for a locking device that is actuated manually using an actuating element and is used for doors and/or windows. The invention is characterised in that the safety device only permits the actuation of the locking device, if a force equal to or greater than a pre-defined actuation force is exerted on the actuation element (2, 2a, 29, 52). Said actuation force can be set in such a way that it cannot be exerted by a child. The safety device is designed to be activated and deactivated.

Description

Safety device, for example child safety device and locking device with such a safety device

The invention relates to a safety device, in particular child safety device for a locking device for windows and / or doors according to the preamble of claim 1 and more specifically to a safety device for building windows and / or building doors and for vehicle doors, in particular car doors, in particular for use as child safety devices.

The object of the invention is to demonstrate a security device which, with a simple design, enables reliable locking of locking devices, for example window and / or door fittings or locks, against unauthorized actuation.

To achieve this object, a safety device is designed according to claim 1. A locking device is designed according to claim 26.

The safety device according to the invention is part of a window or door ski fitting, for. B. a window or door handle and / or part of a window or door lock and / or part of a lock or a lock for vehicle doors.

All versions have in common that the activated safety device enables the actuation of a door and / or window lock or a window or door lock only with or after overcoming a predetermined force or a predetermined moment (actuating force). This actuating force is adjustable or adjusted so that it can be used, for example, by children, but also at one Manipulation from the outside cannot easily be applied, ie the security device according to the invention is on the one hand a structurally simple but very effective child safety device, and on the other hand the security device according to the invention also significantly increases the security against break-ins in windows, doors, etc.

In the invention, the securing device is preferably designed so that it can be deactivated and activated, for example by changing the actuating force or force characteristic li, which is required to actuate the respective lock fitting, lock, etc.

The invention can be integrated into existing industrial fittings, handles, locks, etc. in a simple and therefore cost-saving manner while maintaining existing construction principles. This and the simple design and handling of the security unit according to the invention thus create the prerequisites for designing standard fittings with a reliable security device, in particular also with a perfect child lock, without extensive design changes and without impairing the proven function of standard fittings.

In particular, the invention offers the possibility of perfectly adjusting the safety device present on each door and / or window individually according to the respective requirements and circumstances, for example with regard to the age of the children, the respective setting of the actuating force then being adjusted via the setting of a spring force. via adjustable pneumatics or hydraulics or other media, also via flexible elastic materials such as B. rubber or plastic elements, polymers, etc. can be done. The points of attack and action for the adjustment of the actuating force are then provided at positions that are as freely accessible as possible.

The safety device according to the invention is designed so that an actuating force must be applied according to an adjustable force curve to actuate the respective locking device or the respective lock. However, an adjustable force curve can also be dispensed with and at least one specially specified force or pressure point can be provided for this, which must be overcome for the actuation of the secured locking device or the secured lock and / or for deactivation of the securing device. This pressure or force point can then be realized in a wide variety of ways, for example by means of locking elements, springs, etc.

Another advantage is that after activating the child lock, the child lock remains in the activated state and manipulation by children cannot easily take place, in contrast to conventional child locks on car doors, which are activated or deactivated by operating a lever. this lever can also be operated accidentally by a child, at least when the vehicle is stationary and the door is open.

Another major advantage is that the child lock can be integrated into car locks for a wide variety of vehicle types thanks to its simple design, without extensive design changes being required.

The invention also has the advantage of a simple, constructive and thus reliably working construction. The invention avoids components which are susceptible to faults and are easy to damage, particularly in the case of accidents, and in the process especially electrical and electronic components and is fully functional in almost every situation.

Developments of the invention are the subject of the dependent claims. The invention is explained below with reference to the figures using exemplary embodiments. Show it:

Fig. 1 in a simplified representation and a side view of a window handle

Invention; Fig. 2 is an illustration similar to Figure 1, but with the handle removed

cover; 3 - 5 the window handle of Figure 1 in a view of the back of the

Cover, in different positions of the handle with respect to the cover member; Fig. 6-8 in a simplified sectional view a further embodiment of the window handle according to the invention with integrated child safety device; Fig. 9 - 1 1 in a simplified sectional view different applications of the

Window handle of Figures 1 - 8 as a door handle; 12 is an end view of a door lock according to the invention; 13-16 the door lock of FIG. 12 with the lock case open in different states, specifically in the unsecured state when the lock latch is in the closed position and in the open position (FIGS. 13 and 14) or in the secured state when in the closed position and in the open position of the lock latch (Figures 15 and 16); Fig. 1 7 - 20 representations corresponding to Figures 13 - 16 in a modified

embodiment; 21 - 25 in a simplified representation a car door lock in the closed and in the open state with the child safety device not activated (FIGS. 21 and 22) or in the closed and open state when activated

Child lock (Figures 23 and 24); 26-28 another possible embodiment of the car door lock according to the invention; 29 - 32 in different representations further possible embodiments of the door or window handle according to the invention; 33 is a front view of a door lock according to the invention; Fig. 34 - 39 the door lock of Figure 33 in side view and in different

States. Fig. 40 in different representations a lock latch for use in the

Castle of Figures 33-39; 41 - 45 in a simplified representation various other possible

Embodiments of the window handle according to the invention; Fig. 46 - 49 in different representations a twist grip for a lock with a latch and

Parental Control; Fig. 50 - 53 different versions of a door knob of a door lock with

Parental Control; Fig. 54 in a representation similar to Figure 34, another possible embodiment of a door lock with child lock.

In the figures, 1 is a window handle which, in a manner known per se, consists of a handle element or handle body 2, for example made of plastic, which in the embodiment shown in the view of FIG. 1 is designed approximately as a flat U and at one end with a circular cylindrical section 3 is pivotally mounted in a bore of a cover or cover rosette 4. The cover rosette 4 is attached in the usual way to the inner surface of a window sash, not shown. Furthermore, the handle body 2 is provided at its end having the section 3 with a square 5 projecting beyond this end, via which the mounted window handle 1 is connected in a known manner to the locking mechanism mounted in the window sash. On the circumference, the section 3 is provided with a plurality of groove-like recesses 6, specifically in the embodiment shown with four recesses 6 uniformly distributed around the axis of the square 5. Furthermore, a resilient latching element is provided in the cover rosette 4, which in the embodiment shown is of a Ball 7 is formed. One end of a compression spring 8 is supported against the ball 7 and bears with its other end against an adjusting element 9. The latter is formed by a nut which sits on a threaded bolt which is rotatably but axially not displaceably arranged in a recess in the cover rosette 4, in such a way that the axis of the threaded bolt 10 is arranged radially to the axis of the square 5. The nut 9 is axially displaceable, but secured against twisting. The recesses 6, the ball 7 and the compression spring 8 form the child lock 1 1.

By means of the compression spring 8, the ball 7 is pressed resiliently against the circumference of the section 3 and engages in a recess 6 in predetermined positions of the window handle 1, which correspond, for example, to the closed or tilted position of a window. By using four recesses 6, the window handle 1 can be used both on the right and on the left of a window or window sash. The spring 8 is supported on the threaded bolt 10 at least over a partial length. With the aid of a suitable tool, for example a screwdriver, the pretension generated by the spring 8 can be adjusted by turning the threaded bolt 10 such that after the ball 7 has snapped into a recess 6, the window handle 1 swivels and thus the window fitting is actuated, for example to open the window, is only possible when overcoming an actuating force that cannot be applied by a child, so that those defined by the recesses 6 Positions of the pivot position of the handle element 2 are secured by the child safety device 1 1 for unauthorized operation by a child.

It goes without saying that the window handle 1 can also be used as a handle on a door lock, for example on a door lock of a building door, for example building interior door, in which case the square 5 is passed through the door in a known manner and on the side of the handle element 2 facing away Door wing a suitable handle element is attached to the end of the square 5 there.

In the embodiment shown in FIGS. 1-5, the child safety device 11 or the ball 7 engaging in the recesses 6 thus achieve a force characteristic curve with an increasing ramp, which must be overcome when the ball element 7 is engaged when the handle element 2 is actuated.

As stated, the force of the spring 8 and thus the force characteristic can be adjusted. If this is not desired or necessary, the cover rosette 4 can also be made closed on its circumference, the spring 8 then being supported at its end remote from the ball 7 on a closed side of a recess receiving the spring 8 and the ball 7. In the window handle 1, the integrated child safety device is thus formed by the recesses 6 and the adjustable catch which interacts with these recesses and which comprises the ball 7, the spring 8, the nut thread piece and the threaded bolt 10.

FIGS. 6-8 show, as a further embodiment, a window handle 1 a, which differs from the window handle 1 with regard to the integrated child lock 23. In the window handle 1 a, the child lock is designed such that the handle element 2 for a drive connection with the window fitting against the action of a spring force from an initial position in which the drive connection does not exist, and the child lock is activated (Figure 6), must be pressed into a position in which the child lock is then deactivated (Figures 7 or 8).

The window handle 1 a has a cover rosette 4 a, in which the handle element 2 is pivotally mounted about the axis of the square 5 by a certain angular range, specifically with a tilt and turn window, of which only the sash in FIGS. 6-8 12 and the glazing 13 there are shown by an angular range of approximately 180 ° between handle positions which correspond to the closed position, the tilted position and the position for opening the window. On the square 5 which interacts with the turn-tilt and closing fitting, a driver 15 is seated in the area of the cover rosette 4, which driver is connected to the square 5 and which extends into a recess 16 of the grip element 2a. On the driver 15 notches 17 are formed at one end, for example in the form of an annular toothing surrounding the axis of the square 5, which can cooperate with corresponding notches 18 on the bottom of the recess 16. The catches 18 are then provided with internal teeth, for example.

Between the handle element 2a and the cover rosette 4a acts a return spring, for example a torsion spring 19, which biases the handle element 2 in a predetermined starting position, for example in one of the two extreme positions of the pivoting movement of this handle element, in the (extreme position) the handle element with a stop against one Counter stop of the cover rosette 4a is present. In addition to the return spring 19 acts between the grip element and the coupling piece 15 a compression spring 20 surrounding the coupling piece 15 over a partial length, which biases the grip element 2a into a position in which the drive connection between the grip element 2a and the coupling element 15 is interrupted and thus corresponds to the “child lock activated” state, as shown in FIG. 6 is shown. In this position, the grip element 2a can be pivoted against the action of the return spring 19, but without the window fitting 14 being actuated.

In order to actuate the window fitting 14, the grip element 2a must be pressed against the action of the compression spring 20 in the direction of the window sash, as indicated by the arrow K in FIG. The actuating force required for this pressing is selected by appropriate selection of the compression spring 20 so that this force can only be applied by an adult, but not by a child. FIG. 7 shows the state in which the grip element 2a is pressed against the window sash to such an extent that the catches or catches 17 and 18 engage in one another and, with the grip element 2a still pressed, the fitting 14 can be actuated accordingly by pivoting this grip element. This corresponds to the state "Childproof lock deactivated".

The window handle 1 a also offers the possibility of fixing the “window handle deactivated” state, as shown in FIG. 8. For this purpose, an annular catch 21 is formed on the handle element 2 a, ie in the embodiment shown at the edge of the opening in the recess 16 which engages behind an annular counter detent 22 on the coupling element 15 when the grip element 2a is pressed beyond the state shown in FIG. 7 in the direction of arrow K into the opening of the cover rosette 4a, ie in the direction of the sash frame 12.

By pulling in the direction of arrow K 'with a predetermined force, which can be set by selecting the resilient catches 21 and 22, the grip element can be moved back from the state in FIG. 8 to the state in FIG.

The integrated child safety device 23 is thus in the window handle 1 a essentially by the coupling element 15 with the coupling section 17 and by the relative to this coupling element 15 in the axial direction of the square 5 against the action of the compression spring 20 handle element 2a formed with the coupling portion 18.

FIG. 9 shows the use of the handle 1 a as a door handle on a door 12 '. In this application, the square 5 is passed in a known manner through the door 12 'and the door lock, in such a way that on the side of the door 12' facing away from the handle element 2a, a further handle element 2a 'can be attached to the square 5.

In the embodiment shown in FIG. 9, the child lock 23 is only provided on one side of the building door 12 '. The functioning of the child lock 23 is identical to the function as described above in connection with FIGS. 6-8.

In the embodiment of FIG. 10, a handle 1 a with associated child safety device 23 is provided on both sides of the building door 12 '.

Figure 1 1 shows a representation similar to Figure 6, a handle 1 b, which differs from the handle 1 a in that instead of the compression spring 20, a compression spring 20b is provided, the spring force of which is adjustable, namely via a threaded pin 20b, which is guided in a nut threaded piece, for example in a nut 20b "in the grip element 2b. The threaded pin 20b 'forms the abutment for one end of the spring 20b, which is supported at its other end on the coupling piece 15. The threaded bolt 20b' is on the accessible from the square 5 facing away from the handle element 2b for adjusting the force of the spring 20b and preferably covered by a removable cover. Figures 12-16 show a door lock 24, which with its lock case 25, which contains the functional elements of the door lock 24, can be fastened in a lock-side lock case opening of a door in the usual way, so that the shield 26 is in the fold of the door leaf and The lock is secured in the lock case opening of the door using this plate using screws. In the embodiment shown, the lock 24 has the bolt 27 which can be actuated by a key and a resilient lock latch 28 which has an eye 29 pivotably mounted in the lock case 25 and a lever 30 which projects radially from this eye from the closed position in which the lock latch 28 protrudes from the lock case and over the shield 26, can be moved into an open position. The eye 29 is provided in a known manner with a square opening 31 into which the square, not shown, of the door handles, also not shown, engages.

The lock 24 is provided with an adjustable child lock. This is generally designated 32 and comprises a double-armed pivot lever 33 which is pivotable about an axis parallel to the axis of the eye 29. At one end of the pivot lever 33, a pressure lever 34 is articulated, the other end of which is freely supported on a bearing point which is formed at the transition between the eye 29 and the lever 30. At the other end of the lever 33, a bearing element 35 is articulated, which essentially consists of a plate and a pin projecting from the free side of the plate. Against this bearing element 35 is supported one end of a compression spring 36 which, with its longitudinal extension, lies essentially radially to the longitudinal extension of the lever 33 and in a common plane with the longitudinal extension of this lever, said plane being perpendicular to the plane of the axis of the eye 29 is arranged. The other end of the compression spring 36 is supported in the area of the lock shield 26 on a bearing 37 which can be adjusted there, specifically against a nut thread piece 38 of this bearing. The nut thread piece 38, which in the illustrated embodiment is formed by a hexagon nut, sits on a threaded bolt 39 which is rotatably but axially non-displaceably mounted on the lock shield 26 and is accessible on the outside of the lock shield with the aid of a suitable tool, for example a screwdriver, so that by turning the threaded bolt 39 and thereby displacing the nut thread piece 38 along of the threaded bolt 39, the biasing force of the compression spring 36 can be adjusted. Since the nut thread piece 38 is supported on the end of the compression spring 36, the nut thread piece 38 is held against rotation by this compression spring. The arrangement is also such that when the eye 29 is pivoted in the sense of moving the lock latch 28 into the open position, the lever 33 is pivoted in such a way that the compression spring 36 is additionally tensioned.

In Figures 13 and 14, the biasing force of the compression spring 36 is set so that a relatively easy pivoting of the eye 29 and thus a relatively smooth movement of the lock latch 28 from the closed position (Figure 13) into the open position (Figure 14) is possible is. The nut thread piece 38 is located in the vicinity of the lock shield 26.

Figures 15 and 16 show the state in which the compression spring 36 is biased so far that pivoting of the eye 29 over the respective door handle and thus moving the latch 28 from the closed position (Figure 15) to the open position (Figure 16) only is possible by overcoming a relatively large actuating force or a relatively large moment, in such a way that the door cannot be opened by a child. This means that FIGS. 13 and 14 represent the “childproof lock deactivated” state and FIGS. 15 and 16 represent the “childproof lock activated” state. In FIGS. 15 and 16, the nut thread piece 38 has a very considerable circumstance about the lock shield 26. In the case of the lock 24, the child lock 32 accommodated in the lock case 25 is essentially formed by the levers 33, 34 and the spring 36 which is adjustable in the spring force, the latter being accommodated in the lock case above the latch 28. 14 with a leaf spring is also referred to, which also serves in the lock 24 to bias the lock latch 28 in the closed position.

Figures 1 7-20 show as a further possible embodiment a lock 24a, which differs from the lock 24 essentially only in that the compression spring 36 is arranged in the lock case 25 between the eye 29 and the bolt 27 and the lever 33 corresponding Lever 33a cooperates with its one end in the region of a bend 33a 'via a spring 41 with a stop 42 which is provided on the lock latch 28 or on its latch slide 28' and on which the lever 30 of the eye 29 also acts. Against the other end of the lever 33 is the compression spring 36 with one end, which is supported at its other end against the adjustable bearing 37. The compression spring 41 serves as a return spring for the latch 28. When the eye 29 is pivoted via a door handle (not shown), the lever 36 resting against the stop 42, with the compression spring 41 or 36 being tensioned, moves the latch 28 back from the closed position into the open position.

The compression spring 36 is made significantly harder than the compression spring 41. The adjustable bearing 37 allows the compression spring 36 to be biased differently. Figures 1 7 and 18 show the state of "child lock deactivated". The compression spring 36 is not or only slightly pre-tensioned here. The nut thread piece 38 is accordingly in the vicinity of the lock shield 26. When the eye 29 is actuated, the lock latch 28 becomes the closed position (Figure 1 7) in the open position (Figure 18) only moves while deforming the compression spring 41.

FIGS. 19 and 20 show the state “child lock activated”, in which the compression spring 36 is preloaded accordingly and the nut thread piece 18 is thus at a distance from the inner surface of the lock shield 26. Since the compression spring 36 is designed to be substantially harder than the compression spring 41 , the latter is compressed to such an extent that the lever 33a with its one hook-shaped angled end 33a 'bears directly against the stop 42 even when the latch 28 is in the closed position. The pivoting of the eye 29 and thus the movement of the latch 28 from the closed position (FIG 19) in the open position (FIG. 20) is therefore only possible by overcoming a relatively high torque generated by the force of the compression spring 36, which, by appropriate selection of the compression spring 36 and / or adjustment of this compression spring, is such that it is normally from a child cannot be applied, even for the door lock 24a this is for the first The preload of the compression spring 36 used adjustable bearing 37 or its threaded bolt 39 in turn accessible from the outside of the lock shield 26.

FIGS. 21-24 show in a very simplified representation a car door lock 44 with a bolt 46 which is pivotably provided on a lock case 45 of the door and which interacts with a corresponding counterpart on a fitting of the vehicle, so that in FIG. 21 and 23 shown pivot position of the bolt 46, the car door is closed and in the pivot position of the bolt 26 shown in Figures 22 and 24 an opening of the car door is possible. The bolt 46 is pivoted about an articulated axis 47 which is held in the lock case 45.

By means of a compression spring 48, which acts between one end of a locking lever 46 ′ projecting radially from the locking bar 46 and a circuit board 49 of the lock case 45 the bolt 46 is biased into the closed position. The compression spring 48 is in turn supported on the board 49 via an adjustable bearing 50, which corresponds to the adjustable bearing 37 in terms of its design and with which the prestress of the compression spring 48 can be adjusted from an accessible side, for example from an outside with the vehicle door open ,

On the inside of the vehicle door, a lever 52 is pivotally mounted in a housing 51, which is connected to the bolt 46 via a linkage 53, in such a way that when the lever 52 is pivoted from its starting position, in which the lever 52 in the housing 51 is included (Figures 21 and 23) in a position in which the lever 52 protrudes from the housing 51 (Figures 22 and 24), the bolt 46 is moved from the closed position into the open position.

FIGS. 21 and 22 show the state “childproof lock deactivated”, in which the compression spring 48 is only slightly pretensioned, and thus pivoting of the bolt 46 from the closed state (FIG. 21) into the open state (FIG. 22) is possible with only little effort ,

FIGS. 23 and 24 show the state “child lock activated”, in which the compression spring 48 is preloaded accordingly, so that the bar 46 can only be overcome by swiveling the lever 52 out of the locking position (FIG ) can be moved into the open position (Figure 24).

FIGS. 25-28 show a further possible embodiment of a car lock 44a, which differs from the car lock 44 in that the compression spring 48a, which corresponds to the function of the compression spring 48, acts between the housing 51 and the lever 52 and on the rear of the housing 51 is provided. The compression spring 48a is supported here between a shoulder 52 'of the lever 52 connected to the linkage 53 and an adjustable bearing 50a which is provided in the region of the trough-shaped recess of the housing 51 and is accessible from this recess.

FIGS. 26 and 26 show the state “childproof lock deactivated”, in which the compression spring 48a has only a slight pretension. FIGS. 27 and 28 show the state “childproof lock activated”, in which the compression spring 48a is more pretensioned.

The car door locks 44 and 44a shown in FIGS. 21-28 with child protection have the advantage over conventional child safety devices that adults can open the corresponding car door at any time, especially in the event of an accident, so that quick rescue is possible.

It was assumed above that the force of the springs 48 or 48a can be adjusted manually with the aid of the adjusting element 50 or the adjusting screw. Basically, however, there is also the possibility of making the adjustment of the spring force by means of actuators which can then be actuated, for example, via an actuating element accessible in the area of the driver's seat, for example via an actuating element provided on the dashboard. Also in this version, like in the other versions, even if the hardest setting of the childproof lock has been made, ie the respective spring element is set for the greatest spring force, this force is not by a child, but in emergencies in any case can be overcome by adults at any time, so that even in an accident the door can be opened by adults, which in particular also means that the possibility of opening the car door activated child lock by an adult does not depend on the correct functioning of electronics.

Actuators for the motorized adjustment of the spring force are, for example, electrical or electromagnetic actuators, such as Actuators or motors based on magnetic force. Other actuators, for example hydraulic actuators, are also possible. The respective actuator is then e.g. integrated in the lock area or in the area of the door handle.

In a departure from the special embodiments shown in the figures, the spring-like elements can of course also be provided at another suitable location, for example in the region of the linkage between the door handle and the lock. Instead of the springs 48 and 48a, other elements acting as a spring can also be used, for example those made of plastic and / or metal.

FIGS. 29 and 30 show, as a further possible embodiment, a window handle 1 c which is similar to window handle 1 and has in its cover rosette 4 c two spring elements 60 which are adjustable in their spring force and which cooperate with groove-like recesses 6 on section 3 of handle element 2 c. The spring elements 60, which are arranged radially to the axis of the section 3c or the square 5 of the grip element 2c diametrically opposite one another, each consist of a slide 61 which is displaceably guided in a guide of the cover rosette 4c in the axial direction A and which on its section 3c facing side is provided with a ball 62 which cooperates with the recesses 6. A compression spring 63 is supported against each slide 61, the radially outer end of which rests against a counter stop 64 which can be adjusted by means of a screw bolt 65 with the aid of a screwdriver. Through the Using four recesses 6, the window handle 1c has a total of four locking positions, of which three are used in the assembled state (for right or left installation) for a window with a turn and tilt fitting. In each latching position, with a corresponding setting of the force of the springs 63, child protection is achieved in such a way that the window handle 1c or its handle element 2c cannot be actuated by a child and only an adult is able to apply the appropriate force. to overcome the detent created by the springs 60.

FIGS. 31 and 32 show in a representation like FIGS. 29 and 30 a door handle 1 d which differs from window handle 1 c only in that the grip element 2d does not have the groove-like recesses on its section 3d which extends into the opening of the cover rosette 4d 6, but there is provided with two wing-like projections 66, which form two cams or ramps, which cooperate with the balls or the resilient sliders in such a way that the door handle or the door handle can only be actuated in the sense of opening, if at the same time Resilient sliders against the force of the compression springs are moved radially outwards by the ramps or projections 66. In this case, too, the two compression springs can be adjusted so that the force for opening the door can only be exerted by an adult, and in no case by a child. The ramps formed by the projections 66 can be shaped in such a way that a continuous increase in force is achieved as a function of the pivoting angle of the grip element 2d, which results in particularly convenient operability.

Deviating from the described embodiments, the child lock can also be achieved in that a push button is provided on the handle element, which releases a lock forming the child lock when actuated and enables pivoting of the respective handle element. In this case too Preloaded by a spring force, for example adjustable, such that this spring force can not be overcome by a child, but only by an adult.

FIGS. 33-39 show a further possible embodiment of a door lock 24b, which differs from the door lock 24 or 24a essentially in that a tension spring 70 is provided in the lock case 25 for the child safety device, which has one end via an adjustable, is held by the lock case shield 26 accessible bearing 71 and engages with its other end on an extension 30b 'of the eye lever 30b, which corresponds in function to the eye lever 30, i. H. serves to actuate the lock latch 28b or the lock latch slide 28b against the action of the leaf spring 40.

In the extension 30b 'there is a longitudinal slot 72 which extends tangentially or approximately tangentially to an imaginary circular arc around the axis of the square opening 31 and in which the tension spring 70 is suspended at its other end. Depending on the setting of the adjustable bearing 71, which in the simplest case is formed by a screw, on the thread of which the tension spring 70 is held at one end or a nut thread piece connected to the tension spring, the effect of the child lock formed by this tension spring is adjustable , d. H. the force required to open the lock latch can be set between zero and a maximum value.

FIGS. 34-36 show the state in which the tension spring 70 is ineffective or the child safety device is switched off, specifically FIGS. 34 and 35 with the lock latch 28b protruding over the lock case plate 26 and FIG. 36 with the door handle pressed and in the lock case 25 retracted trap 28b. Figures 37 and 38 show an adjustment of the tension spring 70, in the (adjustment) this tension spring is effective in any case with the door handle fully depressed or with the latch 28b fully retracted. FIG. 39 also shows a setting in which the tension spring 70 is also effective when the lock is in the idle state, ie in the case 28b protruding beyond the lock case shield 26.

FIG. 40 shows the lock latch 28b and the associated latch slide 28b 'in various representations or positions a - h. As shown, the actual latch 28b is releasably attached to the latch slide 28b ', by means of a screw 73 which is accessible from the free end of the latch 28b and thus also from the outside of the lock case shield 26. Furthermore, the latch slide 28b 'and the lock latch 28b are designed in such a way that the latch 28b can be fastened in two positions rotated by 180 ° about the longitudinal extent of the latch 28b on the front side of the latch slide 28b, so that the door lock 24b can be used either left or right hinged doors can be used. The design is such that in both fastening options of the latch 28b on the latch slide 28b ', in addition to the connection via the screw 73, a positive connection between these elements is achieved.

The door lock 24b has, inter alia, the advantage over the door lock 24 that the spring force required for child safety is not introduced via an additional lever, but instead the eye lever 30b is used in the manner described above. For the integration of the child safety device into the door lock 24b, no fundamental changes compared to the conventional design are necessary, so that the child safety device can be integrated particularly easily into existing, proven constructions. Furthermore, the arrangement of the tension spring 70 is particularly favorable from a mechanical point of view, so that the tension spring 70 can be designed to be easy to operate. The connection of the tension spring 70 with the adjustable bearing 71 or with the screw forming this bearing is realized, for example, in that the helix of the tension spring 70 engages in the thread of the screw or that a threaded sleeve or a nut thread piece is provided at the relevant end of the tension spring is which interacts with the screw.

The length of the longitudinal slot 72 corresponds to the path or angle length by which the eye lever 30b is moved when the door handle is fully depressed or when a door handle is pivoted completely.

Another particularly advantageous property of the door lock 4b is that the leaf spring 40 is fully effective even when the childproof lock is switched off, and thus the normal function of the door lock is guaranteed, while the action of the tension spring 70 is continuously adjustable by appropriate adjustment of the adjustable bearing 71 Effect can be brought.

By using the tension spring 70, the adjustable bearing 71 can also be designed in a particularly simple manner as a screw, which is held with its screw head (countersunk head) in a corresponding bore in the lock case shield 26.

As shown in particular in FIGS. 37 and 38, the tension spring 70 can be adjusted so that at the beginning of the opening movement only the leaf spring 40 acts via the eye lever 30b, and only when the lock latch 28b is moved back does the tension spring 70 finally come into play.

A particular advantage of the door lock 24b is that the spring force of the lock latch 28b is independent of the setting of the tension spring 70 and is determined exclusively by the leaf spring 40. When installing the respective door in buildings, larger tolerances may occur, so that when the door leaf is closed, the latch 28b no longer engages with its entire length in the corresponding opening of the striking plate, but only with a part of this length. In this case too, reliable child safety can be achieved by adjusting the tension spring 70 accordingly.

Since the tension spring 70 acts directly on the eye lever 30b and no additional lever arrangements are required, this results not only in a simplified construction but also in a particularly wear-free design.

The opening for the lock latch 28b in the lock case shield is also designed so that by turning the lock latch 28b it is possible to use it on left or right-hinged door leaves, and nevertheless reliable guidance of the lock latch 28b on the lock case shield 26 is ensured. For this purpose, the arrangement of the lock latch 28b, but also of the bolt 27, is centered on the lock case plate 26 in the embodiment shown.

FIGS. 41 and 42 show, in a simplified representation and in a rear view, a window handle 1e with a handle element 2e which is pivotably provided on a housing 74 and which in turn has the square 5. The housing 74 is formed in two parts and consists of an outer housing part 75 and an inner housing part 76. The latter is made, for example, of metal or plastic and has two bores 77 for fastening the window handle 1 e to a window sash. The outer housing part 75, which covers the inner housing part 76 like a hood, is also made of a suitable material, for example of metal or plastic. There is a hole in both housing parts provided, in which the square 5 receiving portion 78 of the handle element 2e is rotatably mounted. On the circumference of section 78, latching cams 79 are provided, in the embodiment shown, a total of four such cams, which interact with a latch 81 formed on a pivoting lever 80. The latch 81 is located on one side between the two ends of the pivoting or latching lever 80, which is provided at one end by means of a joint 82 on the inner housing part 76 within the housing and can be pivoted about an axis parallel to the pivot axis of the handle element 2e and on its side the other end cooperates with one end of a spring 83, which in turn is held on a screw 84 on the inner housing 76, in such a way that the screw is accessible from the outside for adjusting the spring tension of the tension spring 83. The force necessary for the renewed swiveling of the grip element 2e can be adjusted via the tension of the tension spring 83 after the latching 81 has snapped into a groove 79.

The grip element 2e can be connected to the housing 74 in a wide variety of ways. The pretensioning of the spring 83 not only achieves effective child safety, but particularly in the event of extreme pretensioning of the tension spring 83, an intrusion protection is also ensured, i. H. the handle element can no longer be actuated from the outside of the window, for example by drilling into the casement or in any other way, to open the window without authorization.

Instead of the detent 81, a ball can also be provided on the swivel lever 80, for example. Then, for example, a running and guide groove for this ball is provided on the circumference of section 78, in order to achieve as little wear as possible on the one hand, and on the other hand a large-area support with the lowest possible load for this ball. FIG. 43 shows a possibility for mounting the pivot lever 80 in that pin-like projections 82 'are formed in the housing parts 76' enclosing this pivot lever by permanent material deformation, which serve as bearing pins for the pivot lever 81.

FIGS. 44 and 45 show a further possible embodiment of a window handle 1 f, which differs from window handle 1e essentially in that a pressure spring 85 acts on one end of the latching or pivoting lever 80, the other end of which is adjustable Counter bearing 86 supports. The spring force of the compression spring 85 can be adjusted from the outside via this counter bearing. In particular, an adjustment is also possible in such a way that the compression spring 85 in a fully compressed state without a further possible spring travel creates a positive connection between the thrust bearing 86 and the lever 80 and thus completely blocks the grip element 2f in the respective detent position, and for example for effective burglar protection. In the housing 74, in addition to the latching lever 80, a leaf spring 87 is provided, which also interacts with the cams 79 with a detent-shaped central section and thus also enables a detenting adjustment of the grip element 2f even when the compression spring is completely relieved.

Further variants of the window handles 1e and If are conceivable. It is conceivable, for example, to provide, for example, a lever-like or beam-like latching piece with latching instead of the latching lever 80, which is pivotally held on one side and which is connected at both ends to a counter bearing in the housing via a spring element. Furthermore, a leaf spring that is adjustable, for example, in its spring force and cooperating with the cams is also conceivable. FIGS. 46-49 essentially show a lock 89 provided in a door leaf 88 with a lock latch 90 which can be actuated by a rotary knob or knob 91, namely via a latch slide 92 actuated by the knob 91. Between this latch slide 92 and one Lock case shield 93 acts a tension spring 94 which engages with one end on the latch slide 92 and is held at its other end on an adjusting screw 95 which is rotatably mounted in the lock case shield 93 and is accessible in the area of the sash rebate.

FIGS. 50 and 51 show a door lock 96, as is customary, for example, in Italy on building interior doors and which has a knob 97 for opening, on which a push button 98 is provided, by means of which a lock latch is released to release and open the door can. The push button 98 acts on a lever 99 which is biased by a tension spring 100 which can be adjusted from the outside of the knob 97 and which forms the child lock. FIG. 50 shows the knob 97 when the push button 98 is not pressed and the FIG. 51 when the button 98 is pressed.

FIGS. 52 and 53 show representations similar to FIGS. 50 and 51 as a further variant of a lock 101, which differs from lock 96 essentially only in that an additional compression spring 102 is provided as a child lock, which is between the push button 98 and a Counter bearing of the knob 97 acts and can be adjusted from the outside in the area of the push button 98.

FIG. 54 shows a further possible embodiment of a door lock 24c, which differs from the door lock 24b only in that instead of a single tension spring 70, two tension springs 70 'and 70 "are provided, which are arranged parallel to each other and each with the eye lever 30b corresponding Interact with eye lever 30c or with its extension 30c 'The two Tension springs 70 'and 70 "are in turn held at one end on an adjustable counter bearing or on an adjusting screw 71 and engage with their other end in a respective longitudinal slot 72 of the extension 30c'.

The use of two parallel springs 70 'and 70 "not only makes it possible to double the spring force, but each spring 70' and 70" can be set individually, for example in the form that one of the two springs, for example the spring 70 ' is immediately effective when the eye lever 30c is pivoted, while the other spring 70 "is only effective from a certain pivoting angle of this lever.

The invention has been described above using a large number of exemplary embodiments. It goes without saying that numerous further changes and modifications are possible without departing from the idea on which the invention is based.

LIST OF REFERENCE NUMBERS

, 1 a, 1 b, 1 c window handle d, 1 e, 1f door handle, 2a, 2a ', 2e, 2i handle element

Section of the grip element, 4a cover rosette

square

recess

Bullet

compression spring

Mother threaded piece

Threaded bolt adjustable counter bearing

Window or door sash 'door sash

glazing

fitting

coupling member

Recess, 18 drivers or coupling section

Return spring, 20b compression spring b 'threaded bolt b "nut thread 1, 22 detent

childlock , 24a, 24b door lock

lock box

Lock box plate

Latch, 28b latch ', 28b' latch slide

Eye, 30b eye lever b 'extension

Square hole

Childproof lock, 33a double-arm swivel lever a 'angled end

pressure lever

camp

Spring adjustable bearing

Mother threaded piece

threaded bolt

leaf spring

Return spring

Stop, 44a car lock

lock box

Latch 'lever arm

Swivel axis, 48a compression spring PCB adjustable bearing housing 'approach lever linkage spring element sliding element ball compression spring counter bearing adjusting screw projection or ramp tension spring adjustable counter bearing or adjusting screw longitudinal slot screw housing, 76 housing part mounting hole grip element section locking cam locking lever locking hinge pin' joint projection tension spring screw 85 compression spring

86 adjustable counter bearing

87 leaf spring

88 door leaves

89 castle

90 lock latch

91 rotary knob

92 latch slide

93 lock case plate

94 tension spring

95 adjusting screw

96 door lock

97 pommel

98 push button

99 swivel levers

100 tension spring

101 castle

102 compression spring

K, K 'direction of force

Claims

claims

1. Safety device for a locking device for doors and / or windows which can be operated manually via an actuating element (2, 2a, 29, 52), characterized in that the securing device only actuates the locking device while using and / or overcoming a predetermined actuating force on the actuating element ( 2, 2a, 29, 52).

2. Safety device for a locking device for doors and / or windows which can be actuated manually via an actuating element (2, 2a, 29, 52), characterized in that the actuating element (2a) is driven with the locking device only with the application and / or overcoming of a predetermined actuating force is connectable.

3. Safety device according to claim 1 or 2, characterized in that the actuating force is adjustable and / or the safety device between an activated state in which an actuation of the locking device is only possible by overcoming the actuating force, and a non-activated state is convertible in which an actuation of the locking device is possible without overcoming the actuating force.

4. Safety device according to one of the preceding claims, characterized by at least one resilient element (8, 20, 20 ', 36, 48, 70, 83, 85, 94, 102) for generating the actuating force.

5. Safety device according to claim 4, characterized in that the spring element by an elastic body, by a pneumatic or hydraulic Element and / or is formed by at least one spring, for example by at least one compression spring.

6. Safety device according to one of the preceding claims, characterized in that the actuating element is a window and / or door handle (1, 1 a).

7. Safety device according to one of the preceding claims, characterized in that on the handle (2, 2a) or on an element moved by this handle of the locking device catches (6) are provided, which have at least one resilient counter-catch on one when the handle is actuated (2) not co-moving element (4) cooperates.

8. Safety device according to one of the preceding claims, characterized in that the handle (2a) against the action of spring means (20), preferably against the action of adjustable spring means (20 ') to the locking device or to a drive element connected to the locking device, For example, a square (5) can be coupled.

9. Safety device according to claim 8, characterized by means, in particular latching means (21, 22) with which the handle can be locked in the coupled state.

l O.Sicherungsvorrichtung according to any one of the preceding claims, characterized in that it is part of a window and / or door handle (1, 1 a) and that the driving or actuating element is a square (5).

1 1. Safety device according to one of the preceding claims, characterized in that it is part of a door lock (24, 24a, 24b) and that the actuating force to be overcome on a bolt operable by a handle, for example on a lock latch (28, 28b) or acts on a control element (30, 30b) actuating this bolt (28, 28b) in such a way that the bolt (28, 28b) can only be moved from a closed position into an open position when the safety device is activated while overcoming the force.

12. Safety device according to claim 1, characterized in that the actuating force generating at least one spring element (36) acts on the bolt (28) or the actuating element actuating this bolt (30) of the lock (24, 24a).

13. Safety device according to claim 1 or 12, characterized in that the actuating force generating at least one spring element (70) acts on an extension (30b ') of the actuating element (30b) for the bolt (28b).

14. Security device according to one of the preceding claims, characterized in that it is part of a vehicle door lock (44, 44a).

15. Safety device according to claim 14, characterized in that the actuating force generating at least one spring element (48) acts on a by the handle (52) operated latch (46) and / or on the handle (52), in such a way that opening the lock when the safety device is activated is only possible by overcoming the additional force component. 1 ö.Vvorrichtung according to one of the preceding claims, characterized in that an adjustable counter bearing (9, 10; 37, 50, 50a) is provided for adjusting the actuating force and / or for activating or deactivating.

17. Safety device according to claim 16, characterized in that the adjustable counter bearing is provided for a tool accessible on the locking device and / or on the handle, for example on a cover rosette (4), on a window or door handle (2b) or on one Surface of a door lock (24, 24a, 44, 44a).

18. Security device according to one of the preceding claims, characterized in that the closing device is a window or door lock.

19. Safety device according to one of the preceding claims, characterized by its design as a child safety device.

20. Safety device according to one of the preceding claims, characterized in that the actuating force to be overcome is adjustable by a motor.

21. Safety device according to claim 20, characterized in that at least one spring element (48, 48a) is provided for motorized adjustment of the actuating force to be overcome, the spring tension of which can be adjusted by a motor.

22. Safety device according to one of the preceding claims, characterized in that on the handle (2c) or on an element moved by this handle of the locking device notches (6) and / or ramps (66) are provided, which with at least one resilient counter-latch one at Actuation of the handle (2, 2a, 2b, 2c, 2d) elements (4, 4c, 4d) which are not moved are provided.

23. Safety device according to claim 22, characterized in that at least two resilient counter-detents (60) are provided, and preferably diametrically opposite one another with respect to a pivot axis of the handle (2c, 2d).

24. Security device according to one of the preceding claims, characterized in that it is part of a door lock (89) with a rotary knob (91) or a door lock (96, 101) with a push button (98) having a knob (97).

25. Safety device according to one of the preceding claims, characterized in that the spring means are formed by at least two parallel acting springs (70 ', 70 "), and that the spring force of these springs is preferably individually adjustable.

Locking device, in particular window handle, door handle or door lock with a securing device according to one of the preceding claims.