EP0677631A1 - Actuator for a locking device - Google Patents

Abstract

The fastening control comprises a collar in which either a drive nut for the force application of an operating handle (34) or on which the drive nut of the operating handle is rotatably supported. The drive nut has a recess (22) to accept the endpiece (23) of a shaft (24). The free end of the shaft serves as an engagement piece for a rotating coupling of the drive element of the fastening device. The shaft has a polygonal cross section. The end piece and the swing bearing head piece of the shaft have the same cross-sectional shape and size as the length of shaft between the peripherally narrower parts. The peripherally narrower parts to the end piece and swing bearing head piece are each defined by a steep pyramid surface, and by a flat conical surface to the shaft middle. <IMAGE>

Description

The invention relates to an actuating device for a locking mechanism, in particular on a double-leaf window, a double-leaf door or the like. Without a mullion or on a window, a door or the like. With at least one wing opening outwards. This actuating device consists of a rosette in which either a drive nut for the force application of an operating lever or directly an operating lever with a driving nut is rotatably mounted. The drive nut also has a recess for positively receiving an end piece of a shaft, the free end of which serves as a rotary coupling driver for a drive element of the locking mechanism.

Double-leaf windows and doors or the like without a mullion were made at least 40 years ago (see e.g. FITTING MANUAL Volume I; Windows and shutters, drawing sheet No. 1002 from 1951, drawing sheet No. 1003 from 1951 and drawing sheet No. 1301/1302 from 1952 ) and are built again today (see, for example, DE 34 38 126 C2 ) so that a Appealing symmetrical overall view arises, at least from the inside, without significantly influencing the view width of the adjoining wing-limb legs.

To ensure the symmetrical overall view of the window or door in the area of the adjoining sash legs, it is of course necessary - as the documents mentioned clearly show - that the operating hand lever required for actuating the locking mechanism with its bearing rosette is also centered on the overall view of the two sash legs, especially on a so-called Arrange blow bar. This is attached to the inside of the main wing and, in the closed position of both wings, overlaps the end face of the secondary wing on the room side.

So that, despite the relatively narrow overall view of the adjoining sash, the stability of the sash is not permanently impaired by the fitting groove, which has a stepped profile, this fitting groove is incorporated at a greater distance from the underside of the blow bar into a circumferential fold surface on the sash leg of the main sash, which provides the plane of symmetry to the overall view of the adjoining one Wing leg of the main and secondary wing is at least close.

The rebate circumferential surface containing the step-shaped profiled fitting groove can be located on the wing leg of the main wing either towards the secondary wing at a distance in front of the plane of symmetry, or also away from the secondary wing behind the plane of symmetry. In any case, when installing an espagnolette lock, the locking gear with the axis of rotation of its drive element, in particular a pinion, arrives in the fitting groove of the main wing, but in a position which has a lateral offset position Plane of symmetry and thus also to the shaft of the operating lever running in the cover position.

Even with windows and doors with at least one wing opening outwards, it is often inevitable that the axis of rotation of the drive element, in particular pinion, comes to rest in the locking mechanism of the connecting rod lock with a laterally offset position to the shaft of the operating lever mounted on the inside of the wing leg. In this case, the operating lever with its bearing rosette must be mounted on the inside of the opening-side wing leg so that it can be moved unhindered in the outward opening movement of the wing on the adjacent frame spar or wing leg.

In order to bridge the lateral axis misalignment which is inevitable in the aforementioned cases, between the drive element of the locking mechanism and the operating lever mounted on the inside of the wing with the aid of its bearing rosette, the use of so-called intermediate gears is known, as described, for example, by FR-A-2 239 894 or DE -U1 91 03 676 can be disclosed.

In addition to the fact that these intermediate gearboxes require a high level of production and costs because of their multi-unit structure, they have a particular inadequacy in that they are only built for a fixed axial offset between the operating lever and the locking gearbox. Different relative positions of the hardware groove of the main wing to the plane of symmetry of the overall view or to the axis position of the operating lever therefore also require correspondingly different intermediate gears. This results in a not inconsiderable manufacturing and storage effort.

The purpose of the invention is to remedy these shortcomings. It is therefore the task of proposing an actuating device of the type specified at the outset, which not only avoids the use of complicated and therefore costly intermediate gears, but also offers the possibility, in one and the same embodiment, of different axial misalignment positions between the drive element of the locking gear of Push rod locks and the shaft of the operating lever can be bridged without any problems.

A generic actuating device which fulfills these requirements is basically characterized according to the invention in that
that, on the one hand, the end piece of the shaft is pivotally mounted in the recess of the drive nut,
and that, on the other hand, the free end of this shaft also has a self-aligning bearing head piece as a plug-in coupling element for the drive element of the locking mechanism.

The shaft of the actuating device, which is accommodated at both ends in a pendulum-movable manner, leads to the formation of two torque-transmitting diffraction joints between the operating lever and the drive element of the locking mechanism, which easily bridge the existing axial misalignment by correspondingly tilting the shaft forming the intermediate link, as long as certain diffraction angles (by 15 °) are not significantly exceeded .

According to the invention, it could also be advantageous if the shaft of the actuating device in the region between the oscillating bearing in the drive nut and its pendulum bearing head piece facing the drive element of the locking mechanism is designed to be adjustable in length in order to also accommodate different distances between the To be able to easily bridge the installation level of the actuating device and the installation level of the locking mechanism.

It should be mentioned at this point that it is already part of the state of the art in connection with so-called double or box windows (cf. for example DE-C 705 675) that the drive elements of the actuating gears of both drive rod fittings installed in the different sashes are adjustable in length to couple multi-part and length-adjustable PTO shaft with each other. The espagnolette fittings of both wings can be switched as a result or simultaneously with the operating lever mounted on the inner wing. Here it is a question of coupling two identical or similar actuation gearboxes of different window or door sashes to each other depending on the operator, but not of saving an intermediate gearbox.

It should also be mentioned here that there are already operating levers rotatably mounted in a mounting rosette (see, for example, DE-U 74 24 932), the shaft of which is used for coupling with the drive element of a locking mechanism is held in a recess in the lever neck in a pendulum-movable manner. Here, however, it is only a matter of preventing a stiff interaction of the operating lever with the locking mechanism in the event of inaccurate work. This possibility could arise, for example, if, as a result of an inaccurate stop, there is a slight axial misalignment of the central axis of the drive element and the axis of rotation of the operating lever, which is of the order of 1 mm, but at most 2 mm, and with the shaft firmly connected to the operating lever a tension and thus lead to stiffness. Any knowledge that goes to the fact that an intermediate gear normally provided between the operating lever and the locking gear for bridging a large axle offset (for example 10 millimeters to 15 millimeters) is saved can, but this prior art does not convey to a person skilled in the art.

According to the invention, the shaft has a polygonal cross-section, in particular a square cross-section, with both its end piece and its self-aligning bearing head piece being integrally formed on it following a circumferential constriction with a corresponding square cross-section and being spherical to the free end.

Advantageously, the end piece and the self-aligning bearing head piece of the shaft - where they form the rotary coupling driver - should have the same cross-sectional shape and cross-sectional dimension as their length section located between the circumferential constrictions. I.e. the circumferential constrictions should be non-cutting or cutting, e.g. by pressing or milling, in a shaft having the same cross-section over its entire length.

In some cases it is also advisable, according to the invention, to design the rosette supporting the drive nut as an adapter piece which can be placed under the rosette of a commercially available operating lever, this adapter piece being provided with passages for the fastening screws and, if appropriate, also for fixing pins of the operating hand lever rosette which are coaxial with it. In this way, an actuating device according to the invention can be used in combination with many different embodiments of commercially available operating levers.

With the drive nut mounted in the adapter piece, but also with the recess of the drive nut provided directly in the bearing neck of the operating lever, the end piece of the shaft can be kept axially displaceable and oscillating to a limited extent, but otherwise can be kept inseparable. On the other hand, the self-aligning bearing head piece formed at the free end of the shaft should have the drive element of the locking mechanism only get into a detachable, but non-rotatable and limited flexing connector.

In any case, it can be advantageous if, according to the invention, the circumferential constriction towards the end piece and towards the self-aligning bearing head piece is each limited by a steep pyramid surface and towards the center of the shaft by a flat conical surface and the flanks of the pyramid and conical surfaces with each other enclose a right angle. The cone angle of the flat conical surface can advantageously be between 145 ° and 150 °, for example 148 °, so that the angle of the steep pyramid between 30 ° and 35 °, e.g. at 32 °.

In order to be able to bridge different distances between the mounting level of the actuating device and the mounting level of the locking gear with largely avoiding play, it is possible to bridge different distances between the mounting level of the operating device and the mounting level of the locking gear with the actuating device disclosed above in the area between the oscillating bearing in the drive nut and its pendulum bearing head element facing the drive element of the locking gear possible to make the length on the one hand the end piece and on the other hand the pendulum bearing head piece adjustable in length, as is known in another context, for example according to DE 705 675 C.

• daß in der axialen Ausnehmung des Bedienungshebels ein die Antriebsnuß tragender Mitnehmerbolzen undrehbar aber axial verschiebbar sitzt,
• der relativ zum Bedienungshebel in Richtung gegen das in die Antriebsnuß eingreifende Endstück der Welle unter ständiger elastischer Vorspannung gehalten ist.

Since the length-adjustable configuration of a shaft is not only problematic and expensive, but also problematic for permanently functionally reliable distance bridging, the invention proposes that

• that in the axial recess of the operating lever a driving bolt carrying the drive nut sits rotatably but axially displaceably,
• which is held relative to the operating lever in the direction against the end piece of the shaft engaging in the drive nut under constant elastic pretension.

In this way, it can be easily ensured that a one-piece shaft of the actuating device, which is accommodated at both ends in a pendulum-movable manner, is elastically clamped at every possible diffraction angle between the operating lever and the drive element of the locking mechanism, thereby ensuring proper torque transmission.

It is structurally particularly simple if the driver pin is placed under elastic prestress by a compression spring inserted into the recess in the operating lever.

Fig. 1

in räumlich angelegter Horizontalschnitt-Darstellung die unmittelbar - ohne Mittelpfosten des Blendrahmens - zusammenwirkenden Flügelhöhenschenkel eines zweiflügeligen Fensters im Einbaubereich des dem Hauptflügel zugeordneten Verschlußgetriebes sowie der diesem zugeordneten Betätigungsvorrichtung,

Fig. 2

in größerem Maßstab und in der Draufsicht die Ausbildung der in Fig. 1 mit II gekennzeichneten Bereiche der Betätigungsvorrichtung,

Fig. 3

einen Horizontalschnitt durch eine der Fig. 1 entsprechende Anordnung bei abgewandelter Ausbildung des Betätigungsvorrichtung für das Verschlußgetriebe, und

Fig. 4

in Horizontalschnitt-Darstellung die unmittelbar - ohne Mittelpfosten des Blendrahmens - zusammenwirkenden Flügelhöhenschenkel eines zweiflügeligen Fensters im Einbaubereich des dem Hauptflügel zugeordneten Verschlußgetriebes sowie der damit in abgewandelter Ausführung gekuppelten Betätigungsvorrichtung.

Using the exemplary embodiments shown in the drawing, further training features and advantages of actuating devices according to the invention are explained in detail.
It shows:

Fig. 1

in a spatially arranged horizontal section representation, the directly interacting sash heights of a double-sash window in the installation area of the locking mechanism associated with the main sash and the actuating device associated with it, without the mullion of the frame.

Fig. 2

on a larger scale and in plan view, the design of the areas of the actuating device marked II in FIG. 1,

Fig. 3

a horizontal section through an arrangement corresponding to FIG. 1 with a modified design of the actuating device for the locking mechanism, and

Fig. 4

in a horizontal sectional view, the directly interacting sash heights of a double-sash window in the installation area of the locking gear assigned to the main sash and the actuating device coupled therewith in a modified version, without a mullion of the frame.

In Fig. 1 of the drawing, from a double-leaf window without a mullion, only the lock-side wing leg 1 of the main wing and the lock-side wing leg 2 of the secondary wing can be seen. The wing leg 1 of the main wing carries an impact bar 4 on its inner or room-side end face 3, while the wing leg 2 of the secondary wing is equipped with a beat bar 6 on its outer end face 5.

In the closed position of the window, the blow bar 4 carried by the wing leg 1 of the main wing engages over the end face 7 on the wing leg 2 of the secondary wing, while at the same time the outer end face 8 on the wing leg 1 of the main wing is overlapped by the blow bar 6 fastened to the wing leg 2 of the secondary wing.

It can also be seen from FIG. 1 of the drawing that the inner blow bar 4 with its profile width 9 is arranged symmetrically with respect to the inner total width 10 of the wing height limbs 1 and 2 of the main wing and secondary wing forming the so-called middle joint, and that the profile width 11 of the outer blow bar 6 is also arranged a symmetrical arrangement for outer total width 12 of this middle joint. This configuration of the wing height limbs 1 and 2 and the blow bars 4 and 6 defines a plane of symmetry 13-13 at the closed window in the region of the so-called middle joint, which is directed normal to the window plane.

Since different profile systems made of wood, plastic, metal or mixed constructions made from these materials are used for the construction of double-leaf windows and double doors or the like from case to case, it is obvious that the mutually facing rebate surface peripheral areas 14 and 15 of the wing height limbs 1 and 2 of the main wing and secondary wing have more or less different profiles. Therefore, they have more or less different distances relative to the symmetry plane 13 - 13 defined above.

The rebate surface circumferential areas 14 and 15 of the wing leg 1 and 2 of the main wing and secondary wing are mainly used for attaching and accommodating the functionally necessary fittings. Therefore, it is inevitable that these fittings also take different positions relative to the plane of symmetry 13-13 mentioned. This applies in particular to the locking mechanism of the drive rod fittings, which are usually located in step grooves in the rebate surface circumferential areas and must be operated manually by an actuating device 16. Such actuation device 16 usually consist of a rosette 17, in which an operating lever 18 is rotatably mounted. The actuating device 16 with its rosette 17 and the operating lever 18 is mounted on the inner blow bar 4. This is so that the longitudinal center plane of the rosette 17 and consequently also the axis of rotation of the operating lever 18 is in the cover position with the plane of symmetry 13-13.

The axis of rotation 19-19 of a drive element 20, e.g. a pinion, the built in the wing leg 1 of the main wing lock gear has a relatively large lateral offset position 21 to the plane of symmetry 13 - 13 or to the cover position thus rotating axis of the operating lever 18, which must be bridged functionally reliable.

For the stated purpose, in the exemplary embodiment according to FIG. 1, a polygonal, in particular a square, recess 22 is incorporated into the bearing neck of the operating lever 18 as the drive nut, which recess is designed for the positive reception of an end piece 23 of a shaft 24. The free end of this shaft 24 forms a rotary coupling driver for the drive element 20, e.g. the pinion, the (otherwise not shown for reasons of simplicity) locking gear.

It is essential that, on the one hand, the end piece 23 of the shaft 24 is pivotally mounted in the polygonal, in particular square recess 22 of the operating lever 18, while on the other hand the free end of the shaft 24 also has a pendulum bearing head piece 25. This self-aligning bearing head piece 25 can be rotatably inserted as a plug-in coupling member into a polygonal, in particular square, recess 26, which in the aligned position with the axis of rotation 19-19 in the drive element 20 e.g. the pinion of the locking mechanism is provided.

Since the shaft 24 forms both with its end piece 23 and with its self-aligning bearing head piece 25 between the operating lever 18 and the drive element 20 torque-transmitting diffraction joints, the axial offset 21 can be bridged by appropriate inclination of the shaft 24 without problems, at least as long as certain diffraction angles are not significantly exceeded become. The inclined position of the shaft 24 is made possible by a hole made in the wing leg 1 of the main wing.

In particular, from FIG. 2 of the drawing, it can be seen that the shaft 24 of the end piece 23, which has a polygonal cross section, in particular a square cross section, and the self-aligning bearing head piece 25 are integrally formed in each case following a circumferential constriction 27 and with a crowned end surface 28 are equipped. It can be seen from FIG. 2 that the circumferential constriction 27 towards the end piece 23 or self-aligning bearing head piece 25 is limited by a steep pyramid surface 29, to which a flat conical surface 30 adjoins the shaft center. It has proven to be advantageous if the flanks of the pyramid and conical surfaces enclose approximately a right angle with one another and, moreover, the cone angle for the flat conical surface 30 is between 145 ° and 150 °, for example at 148 °.

It has also proven useful if the end piece 23 and the self-aligning bearing head piece 25 of the shaft 24 have the same cross-sectional shape and cross-sectional dimension, at least where they engage as the rotary coupling driver in the square recesses 22 and 26 of the operating lever 18 and drive element 20, like the layer portion of the shaft 24 located between the circumferential constrictions 27. The circumferential constrictions 27 can be cut into the shaft 24 by non-cutting or machining, for example by pressing or milling.

In the embodiment shown in Fig. 1 of the drawing, the shaft 24 with its end piece 23 is preferably non-rotatably and limited longitudinally displaceable, but non-detachably in the square recess 22 of the operating lever 18, while its pendulum bearing head 25 with the square recess 26 of the drive element 20 in a rotationally fixed Plug-coupling connection can be brought.

1 is practically a type in which the bearing rosette 17, the operating lever 18 and the shaft 24 are combined into a special salable unit.

In Fig. 3, however, an actuator for the use described above can be seen, which is characterized in that a drive nut 31 is rotatably mounted in an adapter piece 32 which can be easily placed under the bearing rose 33 of a commercially available operating lever. In this case, the adapter piece 32 is provided with passages (not shown) for the fastening screws and, if appropriate, also for fixing pins of the operating lever bearing rosette 33 that are coaxial with them. In the drive nut 31, on the one hand, the shaft 24, with its end piece 23, is similar to FIG. 1, but is non-rotatably and non-detachably. On the other hand, the drive nut 31 has a square neck with which a corresponding square recess 22 of the commercially available operating lever 34 can be connected.

In all cases, the circumferential constrictions 27 delimiting pyramid surfaces 29 and conical surfaces 30 ensure that, on the one hand, between the square recess 22 and the end piece 23 and, on the other hand, between the pendulum bearing head piece 25 and the square recess 26, there are flexion joints which are permanent with diffraction angles of 10 ° Ensure smooth and therefore smooth torque transmission.

In the area between the circumferential constrictions 27, the shaft 24 can also be provided with a length-adjustable configuration if required.

It is also worth mentioning that the flat conical surfaces 30 which delimit the circumferential constrictions 27 towards the shaft center when the shaft 24 is installed between the operating lever 18 of FIG Actuating device and the drive member 20 of the locking mechanism can take on a supporting function by placing them specifically on the facing end face of the operating lever 18 and the drive element 20, in the area of the bend of each flexure joint.

It follows from the above explanations that the component 24 of the actuating device which is essential to the invention is the specially designed shaft 24. On the one hand, with its specially designed end piece 23 and, on the other hand, through its correspondingly designed self-aligning bearing head piece 25, it offers the possibility of directly forming two torque-transmitting flexion joints solely by means of a positive engagement connection with an operating lever 28 or a drive nut 31 and by means of a positive engagement connection with the drive element 20 Locking gear.

4, a commercially available operating lever 34 is rotatably mounted in a bearing rosette 33, into which an axial square recess 22 is formed. In this square recess 22 a driver bolt 35 is seated in a non-rotatable but axially displaceable manner and has a drive nut 31 with a driver recess 37 at its front end. With this driver recess 37 of the drive nut 31, a shaft 24 is via an end piece 23 in a plug connection forming a torque-transmitting diffraction joint. On the other hand, this shaft 24 is also via a self-aligning bearing head 25 with the formation of a torque-transmitting diffraction joint with the drive element 20, for. B. a pinion, via its square recess 26 connected.

The shaft 24 with its end piece 23 and the self-aligning bearing head piece 25 makes it possible, by means of an appropriate inclined position, to have a lateral axial offset between the square recess 26 of the drive element 20 and the To bridge driver recess 37 in the drive nut 31, as can be clearly seen from the drawing.

The axially displaceable and non-rotatable in the square recess 22 of the operating lever 34 entraining pin 35 is held relative to this in the direction against the end piece 23 of the shaft 24 engaging in the drive nut 31 under constant elastic prestress. This elastic prestress can be brought about by a compression spring 36 inserted into the axial square recess 22 of the operating lever 34. It ensures that on the one hand between the end piece 23 of the shaft 24 and the drive nut 31 and on the other hand between the pendulum bearing head piece 25 and the square recess 26 in the drive element 20, a permanently secure coupling connection is maintained completely independently, regardless of that due to the lateral axis offset between the operating lever 34 and the drive element 20 determined inclined position of the shaft 24.

Although the usability of the actuating devices has only been explained above with reference to the drawing in connection with double-leaf windows and doors or the like without a central post, there is also the possibility of using them without any problems on windows and doors or the like with at least one wing opening outwards. In such a case, the installation arrangement of the actuating device on the wing opening outwards must then be carried out analogously to FIGS. 1 and 2 of DE 917 053 C.

List of reference numerals:

1

Wing leg of the main wing

2nd

Vertical spar of the secondary wing

3rd

face side of the main wing

4th

inner blow bar

5

outer end face of the secondary wing

6

outer blow bar

7

face side of the secondary wing

8th

outer face of the main wing

9

Profile width of the inner blow bar

10th

total internal width

11

Profile width of the outer blow bar

12th

overall outer width

13-13

Plane of symmetry of the middle joint

14

Folding surface circumferential area

15

Folding surface circumferential area

16

Actuator

17th

rosette

18th

Operating lever

19-19

Rotation axis of the drive element

20th

Drive element

21

Offset position

22

Square recess in the operating lever

23

End piece of the shaft

24th

wave

25th

Self-aligning bearing head of the shaft

26

Square recess of the drive element

27

Constriction of the shaft

28

crowned end surface

29

steep pyramid surface

30th

flat conical surface

31

Drive nut

32

Adapter piece

33

Bearing rosette

34

Operating lever

35

Driving pin

36

Compression spring

37

Driver recess of the drive nut

Claims (8)

Actuating device for a locking mechanism, in particular on a double-leaf window, a double-leaf door or the like without a mullion or on a window, a door or the like with at least one wing opening outwards,
Consisting of a rosette (17 or 32) in which either a drive nut (31) for the force application of an operating lever (34) or an operating lever (18) with a driving nut (22) is rotatably mounted,
wherein the drive nut (31) has a recess (22) for the positive reception of an end piece (23) of a shaft (24),
and the free end of the shaft (24) serves as a rotary coupling driver for a drive element (20) of a locking mechanism,
characterized,
that on the one hand the end piece (23) of the shaft (24) is pivotally mounted in the recess (22) of the drive nut (31) or of the operating lever (18),
and that, on the other hand, the free end of this shaft (24) has a self-aligning head (25) as a plug-in coupling element for the drive element (20) of the locking mechanism. Actuating device according to claim 1,
characterized,
that the shaft (24) has a polygonal cross-section, in particular a square cross-section, and its end piece (23) and its self-aligning bearing head piece (25) are integrally formed and crowned (28) following a circumferential constriction (27). Actuating device according to one of claims 1 and 2,
characterized,
that the rosette supporting the drive nut (31) is designed as an adapter piece (32) which can be placed under the bearing rosette (33) of a commercially available operating lever (34) and which has passages for the fastening screws and, if appropriate, also for fixing spikes of the operating lever bearing rosette ( 33) is provided. Actuating device according to one of claims 1 to 3,
characterized,
that the end piece (23) and the self-aligning bearing head piece (25) of the shaft (24) have the same cross-sectional shape and cross-sectional dimension as the longitudinal section of the shaft (24) located between the circumferential constrictions (27) and the circumferential constrictions (27) by non-cutting or cutting Shaping are formed. Actuating device according to one of claims 1 to 4 ,.
characterized,
that the end piece (23) of the shaft (24) is non-rotatably and longitudinally but non-detachably held in the drive nut (31) or the recess (22) of the operating lever (18). Actuating device according to one of claims 1 to 5,
characterized,
that the constriction of the circumference (27) to the end piece (23) and to the self-aligning bearing head piece (25) is each delimited by a steep pyramid surface (29) and towards the center of the shaft by a flat conical surface (30) and that the flanks of the pyramid and the Include conical surfaces with each other at approximately a right angle. Actuating device according to one of claims 1 to 6,
characterized,
that in the axial recess (22) of the operating lever (34) a driving pin (35) carrying the driving nut (31) sits non-rotatably but axially displaceably, which relative to the operating lever (34) towards the end piece engaging in the driving nut (31) 23) has held the shaft (24) under constant elastic pretension (36). Actuating device according to claim 7,
characterized,
that the driving pin (35) is set under elastic prestress by a recess (22) of the operating lever (34) inserted compression spring (36).

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