EP0875651A2 - Automatic adjusting device - Google Patents

Abstract

The door or window is hung in a fixed frame about an adjustable axis by a number of hinges, each with one section fixed to the frame and one section to the door or window pane. An adjusting element provides an adjustment movement, at least in the plane of the door or window pane and alters the setting of each hinge with respect to the hinge axis to align the hinged frame inside the fixed frame. The hinge sections can slide against each other by the movement of the adjusting element. One or more independently acting locking elements (37) between the hinge sections fix the hinge pieces with respect to each other and prevents the adjustment movement.

Description

The invention relates to a device for aligning the Wing of a door, a window or the like. Relative to one fixed frame, with sash and frame over a relative to the frame adjustable axis of rotation through Hinge elements are formed at least around a vertical one Rotational axis are pivotally connected to each other that the Hinge made of at least two movable relative to each other Hinge parts exist, with a first part stationary in the Frame and a second positionally assigned to the wing with one at least in the surface-parallel position of sash and frame acting alignment element producing an alignment movement.

Devices are known for adjusting the wing regarding its bearings to the fixed frame by means of Allow actuators. For example, it is from the DE 36 37 077 C1 as well as a number of others Publications known a hinge arm regarding one frame fixed to the frame and slidable contrary to that acting through the weight of the wing Secure the load direction with an adjusting screw.

An adjustment of the wing compared to the fixed The frame can be turned by turning the adjusting screw be caused, which is a relative displacement of the end of the Hinge arm attached coupling piece with respect to the Hinge arm results.

The adjustment is done manually and may have to be in be repeated at regular intervals as the wing follows some time by loosening the fasteners and by Wear of the bearing components an anti-parallel position to the frame occupies.

Sashes and frames can also have auxiliary devices are aligned with each other, such as the DE 327 608 or also show DE 41 17 407 C2. Are there Devices for aligning the wing on the axis of rotation opposite side of the wing attached that when immersing the sash in the frame with fixed on Frame-mounted elements interact and align of the wing with respect to the frame.

It is a great disadvantage that such devices only in a certain range of the swing angle of the wing act and in the effective range when immersing the wing in the frame, cause a constraint in the hinges. Furthermore, such devices are very large Deviations in the situation ineffective or must be caused by special technically complex designs become more flexible because they the components assigned to them do not meet on the frame or find and such a cooperation becomes impossible.

The tilting function of turn-tilt sashes is also achieved through this Auxiliary devices adversely affected because the tilt axis is shifted by the auxiliary device.

Another device for aligning the wing opposite the framework is known from DE-OS 20 65 840. At the display device disclosed therein is a downward protruding coupling piece attached, which with a Bolt linkage of the wing attached locking bolt cooperates, with the dome as the mushroom head pin trained locking pin engages around a fork. The The coupling piece is anti-parallel to the rebate circumferential surface of the wing or the frame aligned and causes at one Movements of the locking pin a relative movement of the Wing opposite the frame.

It is a major disadvantage that the orientation of the Wing is not effective in all switch positions of the fitting is, but - depending on the position of the locking bolt - the alignment device is overridden.

The object of the invention is therefore a device for Align the wing of a door, a window or the like. in relation to a fixed frame, that this independently by normal operation of the wing takes place with a safe storage of the sash on the frame and lock against the alignment movement.

According to the invention, the object is achieved by one or more between the hinge parts acting automatically acting locking element or locking elements, which fix the hinge parts against each other, the Hinge parts against each other by the alignment element are movable.

A particularly safe and simple design of the Locking elements provides that the locking elements look like Form-fit elements exist, and that the form-fit elements between them by aligning each other removing boundary edges of the hinge parts relocatable are arranged.

A simple design and manufacturing technology Design provides that the positive locking elements from with Wedge-provided actuators exist, the Wedge surfaces lie against each other and the adjusting pieces against each other are arranged displaceable.

This ensures that the alignment element Hinge parts shifted against each other be fixed in position and thereby the vertical axis of rotation of the Wing is moved relative to the wing. The wing receives thereby a new orientation compared to the fixed Frame and in such a way that the upright and horizontal bars of the wing are almost parallel to those of the frame. A further operation of the wing is therefore easily possible, since the locking elements once set and by the Alignment element certain position of the wing with respect to the Fix the frame in place.

To reset the locking by the sash weight Another embodiment is to prevent large wings the invention that the wedge surfaces offset from step-like lying, to an opposite to the alignment movement load direction, almost vertical aligned plan areas exist, with the steps through Sections running at an obtuse angle to the plane surfaces are connected. This configuration causes the on Normal forces due to the vertical Flat surfaces are transferred while making an adjustment the wedge surfaces interacting with each other adjusting the Effect form-locking elements.

A particularly simple embodiment provides that one of the Wedge surfaces in one piece with a fixed to the axis of rotation connected hinge frame is formed. This reduces the necessary assembly work considerably.

Alternatively, it can also be provided that the Form-fit elements consist of plate-shaped components and the boundary edges are almost perpendicular to Direction of loading.

The invention further provides that the positive locking elements through an energy storage device into which the hinge parts mutually blocking position are brought. This is supposed to Possibly friction or acting between the interlocking elements. Like. Be overcome.

A preferred embodiment also provides that one of the hinge parts is designed as a hinge arm, the one with a hinge pin forming the hinge axis fixed and at the other end with the wing-fixed hinge part - Angled part is connected at least lengthways. This Design relates above all to turn and tilt and turn sash commercially available fittings, which subsequently with automatic effective adjustment should be equipped.

Another configuration is possible if one of the Hinge parts is designed as a frame-fixed bearing block, while the second moved by means of the alignment element Hinge part is formed by the bearing pin and when the Positive locking elements via a force accumulator, in particular via a spring are connected.

In this case, the locking or positive locking takes place not on the wing but on the frame, so that the device overall is attached to the frame. With such a Design, it is advantageous that the bearing pin enclosing bearing eyes transverse to the axis of rotation - in the Frame level - are elongated and that the Interlocking elements between the narrow side walls of the Bearing eyes and the bearing pin are arranged. Here too provides an advantageous embodiment that the Narrow side walls and the positive locking elements with adjacent wedge surfaces are provided. A right and such a bearing block can be used on the left, if the two bearing eyes are symmetrical on a base plate are arranged. In this case, the bearing block can be used for both can be used on the right and for windows that can be opened on the left.

A particularly simple embodiment of such Bearing block provides that the energy storage device as Tension spring is formed. This can be between the two Form-fit elements are and be effective between them.

As an alternative to the above, can also be provided that the locking device from a locking device locking against the opening device consists. This also works positively, but prevents it sliding the hinge parts back into position Alignment movement.

As an alternative to the described positive - mechanical effective - locking devices, it is possible that the Locking device from a hydraulic cylinder exists, the inlet valve against the alignment movement blocks and with the alignment movement a media inflow to the Cylinder causes.

Fig. 1

eine schematische Skizze eines Fensters, einer Tür od. dgl.,

Fig. 2

eine obere Scharieranordnung,

Fig. 3

einen Längsschnitt durch eine Scharnieranordnung nach Fig. 1 in vergrößerter Teilansicht,

Fig. 4

Fig. 3 mit einer dazu teilweise verstellten Scharnieranordnung,

Fig. 5

einen Ausschnitt der Scharnieranordnung am senkrechten Schenkel,

Fig. 6

ein Formschlußelement nach den Fig. 2 und 3 in vergrößertem Maßstab,

Fig. 7

eine Ausstellvorrichtung eines Drehkippfensters mit plattenförmigen Bauteilen in Drauf- und Seitenansicht,

Fig. 7a und 7b

eine Kraftspeichereinrichtung zur Verlagerung der plattenförmigen Bauteile nach Fig. 7,

Fig. 8a und 8b

einen rahmenfesten Lagerbock in Drauf- und Seitenansicht.

The figures show some embodiments of the device. It shows

Fig. 1

a schematic sketch of a window, a door or the like,

Fig. 2

an upper hatchling arrangement,

Fig. 3

2 shows a longitudinal section through a hinge arrangement according to FIG. 1 in an enlarged partial view,

Fig. 4

3 with a partially adjusted hinge arrangement,

Fig. 5

a section of the hinge arrangement on the vertical leg,

Fig. 6

a form-locking element according to FIGS. 2 and 3 on an enlarged scale,

Fig. 7

an opening device of a tilt and turn window with plate-shaped components in top and side views,

7a and 7b

an energy storage device for displacing the plate-shaped components according to FIG. 7,

8a and 8b

a frame-fixed bearing block in top and side view.

1 shows a window 1 consisting of a fixed frame 2 and one in it both about a vertical axis of rotation 3 and wings 4 pivotable about a horizontal axis of rotation 5 Frame 2 and the wing 5 are via an upper hinge 6 and a lower hinge 7 connected to each other.

The design provides that the upper hinge 6th is designed as a so-called scissor stay, while the lower hinge 7 is designed as a so-called corner bearing. Of the Wing 5 has one for locking in the frame 2 - here not shown - locking fitting on a Hand lever 8 on wing 5 can be operated. At a The locking fitting is made of a turn-tilt fitting via the hand lever 8 also the possibility for one Swiveling movement around the lower horizontal axis of rotation 4 adjustable. On the upper horizontal wing spar 9 is in this case, an opening device with a perpendicular to Wing-level movable extension arm attached to the upper horizontal wing spar 9 connects to the upper hinge 6. At the lower horizontal wing spar 10 is between the frame 2 and wing 5 a - not visible here - tilt lock effective so that the lower horizontal wing edge 11 on the frame 2 is held.

In the illustrated embodiment, it is indicated that the Frame spars of the frame 2 and the wing spars of the wing 5 do not run in parallel, but through prolonged use, Wear or the like. Moved to an antiparallel position to have. This is a between the wing 5 and the frame 2nd in the - indicated - starting position 12 existing distance of Folded surfaces 13, 14 - the so-called folded air or the chamber dimension 15 - reduced to a minimum in individual areas. Therefore it comes when closing the wing 5, for example, from the Rotary position for clamping.

Therefore, for example, on the lower horizontal frame beam 16 an alignment element 17 is provided which is in contact with the fold surface 14 of wing 5 or one - not shown here - fixed component interacts in such a way that the original intended distance of the folding surfaces 14, 13 at Closing of the wing 5 again. The alignment element In the simplest case, 17 consists of one with an in Equipped with ascending ramp Casserole, which with the fold surface 14 of the wing cooperates. The wing 5 receives through the alignment element 17th its original starting position 12, in which the frame and Wing spars are parallel to each other. When opening the wing 5 however the front wing edge 18 sinks down again, as soon as the fold surface 14 slips off the alignment element 17.

Is the wing 5 aligned so far antiparallel that the Folding surface 14 no longer the run-up slope of the Alignment element 17 hits, the wing 5 can only by manually lifting the front wing edge 18 into the frame 2 immerse yourself.

Tilt and turn fittings therefore provide that on the upper hinge 6 manual adjustment options are attached to the Restore the starting position 12 serve.

Fig. 2 shows an upper hinge assembly 20, which consists of a wing-fixed angle component 21, one movable transversely thereto mounted hinge arm 22, one attached to the end and in front of the frame plane projecting coupling part 23 and a fixed to the frame, fixed on the frame visible surface 24 Bearing block 25, the bearing block 25 and that Coupling part 23 pivotally connected via a journal 26 are.

In the embodiment shown in Fig. 2 one Hinge arrangement 20 is a pure one Rotary fitting, in which only one vertical axis of rotation 3 is provided is. The angle component 21 is fastened in here a fitting groove 27 introduced into the rebate surface 14 Hinge arm 22 is on the pin 28, 29 with the Angular component 21 connected, the pin 29 fixed in the Angle component 21 is anchored and the hinge arm 22 in one Passes through slot 30 and this with a mushroom head 31st backs up. The pin 28 is rotatable eccentrically in the Angle component 21 is mounted and extends through the angle component 21 in an elongated hole 32 and also has a mushroom head 33. The eccentric mounting of the pin 28 is used for Achieving a larger pressure of the wing 5 on the frame 2, i.e. a shift of the sash level towards the frame level. For this purpose, the oblong hole 30 almost corresponds in its transverse dimension the diameter of the pin 29 so that the hinge arm 22 at Actuation of the pin 28 by an inserted therein Tool engagement 34 around the pin 29 acting as the axis of rotation is pivoted, whereby the wing plane is opposite the Frame level shifted.

The hinge arrangement 20 in the illustrated embodiment also has a manually operated adjusting screw 35 on, which acts in the longitudinal direction of the hinge arm 22. This is with a - not visible - thread at the end of a Actuator 36 in engagement, but on the other hand by their location on the coupling part 23 and over the bearing pin 26 with stationary connected to the frame 2.

An actuation of the screw 35 causes the Hinge arm 22 with respect to the fixed set screw 35 lengthways is moved so that the fold surfaces 13, 14 a parallel Able to maintain location. For this purpose, at least the pin 29 arrives an end edge of the elongated hole 30 so that the wing 5 over the Angle component 21 is moved with the hinge arm 22.

Window 1 also shows - not here visible - alignment element 17, which the wing 5 in the closed position - i.e. when immersing the wing 5 in align the frame 2 - in a parallel position. Will the Wing 5 moved by the alignment element 17 or raised, then the angle member 21 is relative to Hinge arm 22 moves until the fold surfaces 13, 14th stand parallel and the rebate clearance or the chamber dimension 15 in its normal size. Through this alignment movement is also relieved of the hinge arm 22, which, because it is stationary the bearing pin 26 is connected to the frame-fixed bearing block 25, the alignment movement is not carried out. This will make a Form-locking element 37 in the area of the setting piece 36 freely movable, which on the one hand in the direction of the coupling part 23 pointing recess 38 passes through, but perpendicular to Fold surface 14 is slidably arranged, on the other hand with a wedge surface 39 on a complementary Wedge surface 40 of the actuator 36 abuts.

As shown in FIG. 3 in an enlarged detail of FIG. 2 clearly makes, the form-locking element 37 passes through the common Recess 38 of the hinge arm 22 and the actuator 36 and a recess 38a in the angle component 21.

The almost vertical back of the form-locking element 37 lies at least in the area of the recess 38a of the Angular component 21 in a form-fitting manner on this.

To the contact surface of the form-locking element 37 on the Angle component 21 is enlarged with a recess 38a Aligned at the end with the vertical leg 46.

As already described, is the alignment element 17 Alignment movement of the angular component 21 in the direction R, the positive locking element 37 becomes free to an extent that corresponds to the amount in the front - not visible here Wing edge 18 is raised. By the tension spring 41 that Form-locking element 37 pulled down so that - according to the wedge effect - the new, spread position of the Hinge arm 22 adjusts with respect to the angle component 21. The next time you open wing 5, it will be called Locking element acting form-locking element 37 against the Direction R loaded, where it is form-fitting between the Angle component 21 and the hinge arm 22 and this to each other, against the direction R of the alignment movement, in Load direction fixed, i.e. locked. In the R direction the lock can still be released.

4 shows the hinge arrangement 20 corresponding to FIG. 3, where the automatic alignment has already taken effect. How is particularly visible in connection with Fig. 3, by the immersion of the positive locking element 37, the relative position of the Hinge arm 22 changed with respect to the angular component 21, see above that the distance between two arbitrarily chosen points on each Component - here based on the fold surface 14 and the Boundary edge 42 'of the actuator 36 shown - changes.

3 and 4 also show that the tension spring 41 at one end the form-locking element 37 engages and on the opposite End receives an abutment on a pin 42. Should for example, the automatic adjustment is withdrawn through a hole 43, a tool 44 or Similar are introduced and the positive locking element 37th against the tension spring 41 are moved up and a Desired alignment position of the wing 5 with respect to the frame 2 can be reset with the adjusting screw 35. Both the Set screw 35 and the opening 43 are only in open state of the wing 5 accessible.

The positive locking element 37 can - as shown in FIG. 5 - also by a plug 45, which is seated in the opening 43, fixed will. This is for example when installing the Hinge arrangement 20 makes sense to the adjustment range of automatic adjustment. The plug 45 protrudes through the leg 46 of the angle component 21 and touches with its lateral surface 47 the lower end 48 of the Form-locking element 37 in its initial position. The plug 45 According to this configuration, it is only after the wing 5 has been installed removed from the opening 43 on the frame 2, so that the Form-locking element 37 only then becomes movable.

Fig. 6 shows the form-locking element 37 in an enlarged Scale. The form-locking element 37 has a wedge shape the step-shaped shoulders 50 are arranged. Through this Arrangement of the step-shaped paragraphs 50 is achieved in that a load acting in the direction R almost the flat surfaces 51 are loaded vertically and none form-locking element 37 perpendicular to the R direction and counter to the F direction resulting force component that arises when heavy Wings 5 an escape of the positive locking element 37 upwards - opposite to direction F - could cause. The depth 52 of paragraphs 50 determines the minimum possible measure with which the alignment movement of the alignment element 17 can be fixed can. The smaller this depth 52 is chosen, the finer Alignment movements can be fixed and retained.

To shift the flat surfaces 51 lying opposite one another to facilitate, the flat surfaces 51 by obtuse angles phase-like sections 53 running to the flat surfaces 51 get connected.

7 shows an embodiment of an opening device a tilt-and-turn window, the as locking elements acting form-locking elements 37 made of plate-shaped components exist in an opening 55 of the actuator 36th lie next to each other in layers. The positive locking elements 37 are loaded on their underside by spring elements. Is the actuator 36 slidably leading and overlapping extension arm 56 by the aligning force in Direction R - together with wing 5 - moves, so coincide the opening 57 in the opening arm 56 and the opening 55 in Actuator 36 partially. If the cover reaches a clear dimension, that is greater than the strength of one of the form-locking elements 37, so this is arranged under the influence of the one below Spring element moved up and locked the Extension arm 56 with respect to that which is slidably arranged Actuator 36 against the direction R.

Since the extension arm 56 acts on the - not visible - Alignment element 17 is force-free, will not be large Spring forces required by the spring elements. Therefore a Design are selected according to Fig. 7a, in which the spring elements consist of spring tongues 58, which are mutually running parallel and by a common transverse web 59 are connected and the molded part 60 form. The molded part 60 can be stamped or the like produce a spring steel and is on the actuator 36 attached.

To the maximum movement of the positive locking elements 37 limit, the extension arm 56 - also to avoid the Penetration of the mobility of the form-locking elements 37 impairing dirt - with a thin-walled cover 61 closed. This thin-walled cover 61 can for example from a removable plastic or sheet metal part be formed.

8a and 8b show a schematic Embodiment of the invention in which the Form-locking elements 37 in a fixed position on the frame 2 Bearing block 70 are performed. A tape roll 71 is in Transverse direction fixed with a - not shown - extension arm an opening device or the like connected. This protrudes a cantilever 72 of the tape roll 71 to before - not here either shown - folded surface 13 of the frame 2. The tape roll 71st encompasses a bearing pin 73 which is in an elongated hole Bearing eyes 74 of the bearing block 70 parallel to the frame plane is led. For this purpose, the bearing block 70 has bearing eyes 74 in which the positive locking elements 37 along the central axis of the Bearing pin 73 are performed. The bearing eyes 74 are on one Provide the end with the wedge surfaces 40 to the central transverse axis 75 of the bearing block 70 the wall thickness of the bearing eye 74 enlarge. The form-locking elements 37 are also with Wedge surfaces 39 provided in the opposite direction run so that the bearing pin 73 facing, with a Circular segment 76 provided lateral boundary edges 77 of the Form-locking elements 37 run parallel to the bearing pin 73.

Through the interaction of the wing - not shown here 5 with the alignment element 17, likewise not shown. is the rigidly connected in the plane of the wing 5 with this Tape roll 71 together in that enclosed by the tape roll 71 Bearing pin 73 moved in the R. The through the Energy storage device connected in the form of a spring 78 Form-locking elements 37 are free and can under Action of the spring 78 to move towards each other until they move - Due to the wedge surfaces 39, 40 - with the circular segments 76 back to the bearing bolt - moved by the band roller 71 73 create and its new, through the alignment element 17th caused position, fix or lock.

The illustrated embodiment has compared to the embodiments described above have the advantage that the wing components are left almost unchanged can. Also 15 are attached outside the air gap Do not adapt devices to the limited space available and can be easily od by a suitable cover cap. Adapt to the optical conditions.

The base plate 79 of the bracket 70, as shown in FIG Recognizing the embodiment is symmetrical with respect to Central transverse axis 75 designed so that the bearing block 70 both for wing 5 opening to the right as well as opening to the left Wing 5 can be used.

Just for the sake of form, it should be noted that this too Example the interacting wedge surfaces 39, 40 of the Form-locking element 37 and the bearing eye 74 with accordingly Flat surfaces 51 running perpendicular to the load direction can be provided.

For the sake of form, it should also be pointed out that here too known, manual adjustment devices in the field of Stay scissors still used, e.g. for basic adjustment, can find.

It should also be noted that it is very severe Wings 5 is advantageous if the positive locking element 37 for example according to Fig. 2 to 5 with the vertical back as large as possible on the vertical angle leg 46 des Angle component 21 bears against a tilting or twisting of the Prevent angular component 21.

Therefore, it can also be provided that the angle leg 46 a has an extension projecting into the recess 38 and / or that the interlocking element 37 along the fold surface 14 of the angle leg 46 is guided. This would also do that Moving the form-locking elements 37 relative to the actuator 36 favors.

Reference list

1

window

2nd

frame

3rd

vertical axis of rotation

4th

horizontal axis of rotation

5

wing

6

top hinge

7

lower hinge

8th

Hand lever

9

upper horizontal wing spar

10th

lower horizontal wing spar

11

lower horizontal wing edge

13

Fold surface

14

Fold surface

15

Rebate clearance / chamber size

16

lower horizontal frame spar

17th

Alignment element

18th

front wing edge

19th

20th

upper hinge arrangement

21

Angular component

22

Hinge arm

23

Coupling part

24th

Frame viewing area

25th

Bearing block

26

Bearing journal

27

Hardware groove

28

Cones

29

Cones

30th

Long hole

31

Mushroom head

32

Long hole

33

Mushroom head

34

Tool intervention

35

Set screw

36

Actuator

37

Positive locking element

38

Recess

39

Wedge surface

40

Wedge surface

41

Tension spring

42

Cones

42 '

Boundary edge

43

opening

44

Tool

45

Plug

46

leg

47

Lateral surface

48

lower end

49

50

step heels

51

Flat areas

52

depth

53

section

R

direction

F

direction

55

opening

56

Extension arm

57

opening

58

Spring tongue

59

web

60

Molding

61

cover

70

Bearing block

71

Tape roll

72

boom

73

Bearing bolt

74

Bearing eyes

75

Central transverse axis

76

Circle segment

77

Boundary edge

78

feather

79

Base plate

Claims (13)

Device for aligning a wing of a door, a window or the like relative to a fixed frame, the wing and frame being connected to one another pivotably about at least a vertical axis of rotation via an axis of rotation which is adjustable in relation to the frame and which is formed by hinge elements, and wherein the hinge consists of at least two hinge parts which are movable relative to one another, a first part being assigned to the sash in a fixed manner and a second fixed to the sash, with an alignment element that acts at least in the surface-parallel position of the sash and frame and generates an alignment movement
marked by, one or more locking elements or locking elements which act or act automatically between the hinge parts and which fix the hinge parts to one another and lock them against the alignment movement, the hinge parts being displaceable relative to one another by the alignment element (17). Device according to claim 1,
characterized,
that the locking elements consist of form-locking elements (37), and that the form-locking elements (37) are displaceably arranged between boundary edges of the hinge parts which are spaced apart by the aligning movement. Device according to claim 2,
characterized,
that the interlocking elements (37) are provided with wedge surfaces (39, 40), the wedge surfaces (39, 40) lying against one another and the interlocking elements (37) being arranged such that they can be displaced relative to one another transversely to the direction R of the load. Device according to one of claims 1 to 3,
characterized,
that the wedge surfaces (39, 40) consist of staggered planar surfaces (51) oriented almost perpendicular to a loading direction opposite to the alignment movement, the steps being connected by obtuse angles to the planar surfaces (51) sections (53). Device according to one of claims 1 to 4,
characterized,
that one of the wedge surfaces (40) is formed in one piece with a hinge arm (22) fixedly connected to the axis of rotation (3). Device according to claim 2,
characterized,
that the form-locking elements (37) consist of plate-shaped components and the adjoining boundary edges run almost at right angles to the direction of loading. Device according to one of claims 3 or 6,
characterized,
that the interlocking elements (37) are brought into the locking position of the hinge parts by a force storage device. Device according to claim 1,
characterized,
that one of the hinge parts is designed as a hinge arm (22) which is connected at one end to a hinge pin forming the hinge axis and at the other end to the wing-fixed hinge part - angle component 21 - at least longitudinally displaceably. Device according to claim 1,
characterized,
that one of the hinge parts is designed as a frame-fixed bearing block (70), while the second hinge part moved by means of the alignment element (17) is formed by the bearing bolt (73) and that the form-locking elements (37) are connected to one another via a force accumulator. Device according to claim 9,
characterized,
that the bearing eyes (73) enclosing the bearing eyes transversely to the axis of rotation - in the frame planes - are elongated and that the form-locking elements are arranged between the narrow side walls of the bearing eyes (74) and the bearing pins (73). Device according to one of claims 9 or 10,
characterized,
that the narrow side walls and the interlocking elements (37) are provided with wedge surfaces (39, 40) lying against one another. Device according to one of claims 9 to 11,
characterized,
that two bearing eyes (74) are arranged symmetrically on a base plate (79). Device according to one of claims 9 to 12,
characterized,
that the energy storage device is designed as a tension spring (78).

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