EP2990564B1 - Device and method for guiding a carrier for a formwork or protecting element - Google Patents

Description

The invention relates to a device for guiding a carrier for a formwork or protective element in the processing of buildings with at least one guide device for receiving a carrier, wherein the guide device comprises a receiving element for the carrier and a fastening element which is fixed to a ceiling, or a wall or a front side of a ceiling or a wall of the building to be processed, can be fastened. Furthermore, the invention also relates to a method for moving at least one formwork or protective element in the processing of buildings, wherein a formwork or protective element is connected to at least two carriers and the two carriers are associated with two guide devices in each case, wherein the guide devices in pairs are arranged spaced apart vertically, preferably at a distance of a floor of the building to be processed, and the upper guide devices are associated with an upper floor ceiling and the lower guide devices are associated with a lower floor ceiling.
Devices of the type mentioned are, for example, from the EP 2 503 077 A1 . WO 2011/127970 A1 . US 3,881,699 known.

The WO 2011/127970 A1 discloses the features of the introductory parts of claims 1 and 10, wherein the EP 2 503 077 A1 the features of the introductory parts of claims 7 and 8 disclosed.

Basically, a variety of so-called climbing systems are already known, which are used in the processing of buildings to formwork or protective elements in the desired height, preferably in the region of a concreting section to install. In the context of the present invention, machining means, in particular, the erection as well as the dismantling / removal or maintenance of a building; mainly formwork or protective elements are currently used in the construction of new buildings.
Here, the receiving elements for the carrier are each positioned at the desired height, so that then preferably by means of linear drives, eg hydraulic cylinders or the like., Or by means of a crane, formwork or protective elements, which via the connection between the carrier and receiving elements are guided in their movement, are dealt with accordingly can.

Depending on the building or type of climbing system, the fastening elements of the guide device are preferably located on the ceiling of a projectile, e.g. if a glass facade is to be provided in the building to be processed, or mounted on an already prepared wall of the building to be processed.

The problem here is that the architecture of the building to be processed often has irregular shapes. The processing of tall buildings with special geometry, in which often formwork or protective elements are used, therefore, usually requires an adaptation or a Mitbewegen the climbing equipment to the architecturally desired geometry.

Consequently, it is for example already out of the DE 10 2005 030 332 A1 known to provide a climbing shoe, in which a wall or ceiling shoe part is fixedly secured to a wall or to a ceiling of a concreting section. A sliding shoe part for guiding and holding a carrier or a climbing rail is then connected in an articulated manner to this stationary wall and ceiling shoe part.

Similar devices are also in the DE 10 2005 030 0331 A1 and the DE 10 2005 030 333 A1 disclosed.

Furthermore, it is from the EP 2 412 894 A known to store a support arm of a receiving unit on a substantially perpendicular to the facade level of the building to be processed sliding rail, so that the distance of a protective shield, which is attached via the recording unit connected to the support arm, can be adapted to the ceiling edge.

However, the already known on the market guide devices for carriers of formwork or protective elements thus either have only a single degree of freedom for a translational movement or is due to the articulated connection of a Receiving element achieved only a slight adjustment option, which does not meet all building geometries.
The aim of the present invention is therefore to provide a device of the type mentioned, which - regardless of the way the formwork or protective elements are lifted - has a high flexibility in the adaptation of formwork or protective elements to changing building geometries and inclinations , In particular, a pivoting of the formwork or protective elements on the building should be possible. This object is achieved by a device having the features of claim 1, 7 or claim 8 and a method having the features of claim 10.

According to the invention according to claim 1, claim 7 and claim 10 is provided that the receiving element is connected to the fastening element such that the receiving element in an imaginary Cartesian coordinate system, with a substantially vertically arranged z-axis, a substantially horizontally extending y-axis which extends obliquely to a plane spanned by a facade of the building to be machined, preferably substantially perpendicular to this plane, and to an x-axis perpendicular to the plane spanned by the z-axis and y-axis, in the direction of the x-axis. , y and z axis is slidably mounted.
According to the invention, therefore, a translational mobility of the carrier of a formwork or protective element receiving element is provided in at least two directions. This makes it possible, for example, to arbitrarily arrange the carrier, which is in communication with the receiving element in a plane parallel to the projectile plane, ie to remove or approach from the building facade to be processed and at the same time to move in facade direction; In addition, advantageously also an adaptability in the height direction, ie in the direction of the z-axis can be provided. This results in a high flexibility in the management or arrangement of formwork or protective elements in the processing of buildings, so that by means of the invention Device adaptability to substantially any geometric configurations of the building, especially on changing building inclinations and the like., Is possible.

The receiving element is displaceably mounted in a plane extending essentially in the horizontal direction and extending from the x and y axes. As a result, the adaptability already described above is ensured in a plane that runs essentially parallel to a projectile plane, which makes it possible to adapt to changing building inclinations and geometries with a high degree of flexibility.

Structurally, according to claim 1, the translational mobility of the receiving element in the direction of the x-axis, ie preferably achieved parallel to a plane of the facade to be machined, in a simple manner that the guide device comprises a support arm by means of at least one, preferably two substantially perpendicular to the longitudinal direction of the support arm extending rail (s) is slidably mounted in the direction of the x-axis. Preferably, the support arm is therefore mounted on two guide rails, which are guided in each case by fixedly arranged fastening elements, on a ceiling, slidably. This results in an embodiment substantially in the manner of a sliding carriage on which the support arm of the receiving element is attached. A slidable mounting of the support member supporting the support arm is particularly easy to achieve when the rail (s) are provided for placement on a ceiling of the building to be processed.
A structurally particularly simple embodiment for displaceably mounting the receiving element for the purpose of adapting the position of the shuttering element in connection with the shuttering or protective element in the direction of the y-axis, ie essentially to bring a formwork or protective element closer to the facade or from this is removed, when the support arm of the receiving element has a displaceable gripping portion, so that the gripping portion comprising the receiving element in the direction of the y-axis opposite is slidably mounted on another part of the support arm. Such support arms are already known in the market. Thus, for example, the Doka GmbH a guide device under the name "Xclimb 60" is offered, which is intended for attachment to a ceiling, and which has a linear drive for moving a front gripping portion. As a linear drive a spindle drive is provided in this known element; Of course, however, a hydraulic drive or any other linear drive can be provided.

Likewise, in a further alternative solution according to claim 8 in a simple manner a comparatively high flexibility in the adjustment of the leadership of formwork or protective elements achieved by the receiving element in a, extending substantially in the vertical direction, from the z and x-axis clamped plane is slidably mounted. A displaceability in the direction of the plane defined by the z- and x-axis plane can be achieved structurally in a simple manner, when the fastener is provided for attachment to a wall of the building to be processed. With such a fastening element arranged on a wall of a building to be processed, full mobility or adjustability of the receiving element in at least one plane is thus likewise achieved.
In order to achieve a displacement in the z-direction in such a fastened to a wall of the building to be processed fastener, the fastener has at least one extending in the direction of the z-axis groove, in which engages at least one end portion of an intermediate element. Preferably, the fastening element on both sides in the direction of the z-axis extending grooves, in which then end portions of the fastening element substantially umklammernden intermediate element can be stored in a simple manner; the determination of a lower end position can then be achieved in a structurally simple manner by means of a screw.
To in the manner of a cross slide on structurally simple Also a displacement in x-direction, ie
preferably in the direction of the facade to achieve, the intermediate element is connected to a displaceable in the direction of the x-axis sliding rail, on which is provided for receiving the carrier gripping portion.

In a structurally simple manner according to claim 1, a displaceability of the receiving element in the z-direction is achieved in that is arranged for displaceable mounting of the receiving element in the direction of the z-axis of the support arm of the receiving element on a height-adjustable scissor lift.

In order to increase the adaptability of the receiving element of the device according to claim 1 on the three directions in the x-, y- and z-direction further, it is also advantageous if the orientation of the gripping portion relative to the rest of the guide device is variable, so that an inclination opposite a in the attached state substantially in the horizontal direction extending basic position is adjustable. In previously available on the market recording elements, such as the already mentioned above "Xclimb 60" Doka GmbH, a pivoting of the carrier in the recorded position in the receiving element at an angle of +/- 10 ° is possible. In order to allow a further inclined position of the protective or formwork element relative to a vertical plane, it is therefore advantageous to bring the gripping portion in a corresponding inclined position with the other receiving element in combination, so that inclinations between two floors of greater +/- 10 ° be enabled.
In terms of design, this is advantageously achieved in a simple manner by the fact that several, arranged in different orientation for adjusting the inclination of the gripping portion Receiving openings are provided in a fixing unit of the guide device.

• Fig. 1 stellt keinen Teil der Erfindung dar und zeigt eine perspektivische schematische Ansicht einer Decke eines zu bearbeitenden Gebäudes mit einem gedachten kartesischen Koordinatensystem;
• Fig. 2 stellt keinen Teil der Erfindung dar und zeigt eine Ansicht einer auf einer Decke verschieblich gelagerten Führungsvorrichtung;
• Fig. 3 eine Draufsicht auf die Führungsvorrichtung gemäß Fig. 2;
• Fig. 4 stellt einen Teil der Erfindung nach Anspruch 1 dar und zeigt eine Ansicht einer Führungsvorrichtung mit einem Aufnahmeelement, das in x-, y- und z-Richtung verschieblich gelagert ist;
• Fig. 5 eine Draufsicht auf die Vorrichtung gemäß Fig. 4;
• Fig. 6 stellt einen Teil der Erfindung nach Anspruch 8 dar und zeigt eine Ansicht einer an einer Wand eines zu bearbeitenden Gebäudes befestigten Führungsvorrichtung;
• Fig. 7 eine Draufsicht auf die Vorrichtung gemäß Fig. 6;
• Fig. 8 stellt einen Teil der Erfindung nach Anspruch 7 dar und zeigt eine Seitenansicht einer Führungsvorrichtung mit einem an einer Wand angeordneten Befestigungselement und einer verschieblichen Lagerung des Aufnahmeelements in x-, y- und z-Richtung;
• Fig. 9 eine Draufsicht auf die Vorrichtung gemäß Fig. 8;
• Fig. 10a bis 10c zeigen eine Ansicht einer Bewegungsabfolge zur Veränderung der Schrägstellungen eines Schutzelements gegenüber einer horizontalen Achse, die mithilfe des erfindungsgemäßen Verfahrens erreicht wird.

The method of the type mentioned is inter alia characterized in that two are arranged on the upper floors ceiling linear drive elements are arranged with which the formwork or protective element is lifted, then a linear drive element is removed, and that the formwork or protective element to the compound is pivoted between the other guide device and the carrier with the remaining linear drive element.
With the aid of this method according to the invention, it is therefore possible in a simple manner to pivot a protective or shuttering element during the machining of a building.
Accordingly, can be achieved by recording the vertical forces on the upper floor and the sliding storage at least in the x and y direction in the lower floor pivoting about a connection between the support and receiving element of the upper floor ceiling, and thus can easily protection or Shuttering elements are tilted with respect to a vertical and horizontal orientation, so that an adaptation to changing building slopes and geometries is possible in a simple manner.
In order to allow easy straight climbing upwards, it is advantageous if the second linear drive element is added again.
The invention will be explained in more detail below with reference to preferred embodiments illustrated in the drawings, to which, however, it is by no means restricted. In detail, in the drawings:

• Fig. 1 is not part of the invention and shows a perspective schematic view of a ceiling of a building to be processed with an imaginary Cartesian Coordinate system;
• Fig. 2 is not part of the invention and shows a view of a slidably mounted on a ceiling guide device;
• Fig. 3 a plan view of the guide device according to Fig. 2 ;
• Fig. 4 is a part of the invention according to claim 1 and shows a view of a guide device with a receiving element which is slidably mounted in the x-, y- and z-direction;
• Fig. 5 a plan view of the device according to Fig. 4 ;
• Fig. 6 Fig. 10 is a part of the invention according to claim 8, showing a view of a guide device attached to a wall of a building to be worked;
• Fig. 7 a plan view of the device according to Fig. 6 ;
• Fig. 8 is a part of the invention according to claim 7 and shows a side view of a guide device with a fastening element arranged on a wall and a displaceable mounting of the receiving element in the x-, y- and z-direction;
• Fig. 9 a plan view of the device according to Fig. 8 ;
• Fig. 10a to 10c show a view of a sequence of movements for changing the inclinations of a protective element with respect to a horizontal axis, which is achieved by means of the method according to the invention.

In Fig. 1 a guide device 1 is shown schematically, which has a schematically illustrated receiving element 2, which is displaceably mounted in the direction of an x-axis, a y-axis and a z-axis on a ceiling 3 of a building to be processed.
As can be seen in the schematic illustration, the x-axis extends substantially parallel to a front edge 3 'of the ceiling 3, so that when displaced in the x-direction preferably an adjustment of the receiving element 2 along the facade of to be processed building. Consequently, over the Displaceability in the x direction, a displaceability in the facade direction and by the displaceability in the direction of the y axis a displacement perpendicular to the facade direction can be achieved.

In the FIGS. 2 and 3 a device not according to the invention is shown, in which a frame 4 is provided, which in particular has two rails 4 'running in the x-direction, which are displaceably mounted in fastening elements 5 which are fixedly attached to the ceiling 3.
With the rails 4 'is a support arm 1' of the guide device 1 is firmly connected, said support arm 1 'has a front gripping portion 6, which in turn has the receiving element 2 formed as a guide jaws. The gripping portion 6 is slidably mounted in the y-direction relative to the fixed part of the frame 4 of the support arm 5, wherein for driving the gripping portion 6, a linear drive 1 '', for example a spindle, a hydraulic cylinder, or the like., Is provided.
Such a guide device is currently available on the market, in particular under the name "Xclimb 60" from Doka GmbH, so that more detailed explanations on the basically known configuration of this support arm is unnecessary.
Due to the slidable mounting of the ceiling frame 4 in the fastening elements 5 and the sliding mounting of the gripping portion 6 including receiving element 2 thus the position of a carrier 8, which is guided and held in the receiving element 2 between guide jaws 7 in its longitudinal extension direction, and which with a protective element 9 or a formwork element is connected, can be adjusted flexibly in the x and in the y direction, so that an adaptation to a wide variety of building gradients and geometries is possible in a simple manner.
Here, a variety of climbing systems can be used. In the embodiment shown, the carrier 8 of the protective or formwork element 9 substantially in the form of an I-profile, to which at regular intervals hooks 8 'are attached. The carrier 8 can in between the pivotally mounted guide jaws 7 recorded position are shifted in its longitudinal direction upwards, wherein when lowering a hook 8 'is hooked with a pin of the receiving element 2, so that the guide device 1 the carrier 8 together with protective or formwork element 9 in a conventional manner Lifting leads reliably and holds without applying a lifting power. Of course, however, differently configured receiving elements 2 for holding and guiding the carrier 8 or other types of carrier 8 can be used.
In order to further improve the possibilities of adjusting the positioning of the receiving element 2, the ceiling frame 4, as in FIGS. 2 and 3 shown essentially on a scissor lift 10, as in 4 and 5 represents, be attached.

In Fig. 4 It can be seen here that a scissor lift is provided, which has two interconnected via a hinge scissor elements 11 which are mounted in slots 12 of the upper and lower table element 13, so that via a linear drive 14, the entire ceiling frame 4 in the z-direction slidably is arranged. In this embodiment, the lower table element 13 is fixedly connected to the ceiling 3 and thus serves as a fastening element. 5
In the 6 and 7 a device is shown in which a provided on a wall 15 fastening element 5 is provided for the displaceable mounting of an intermediate element 16. In this case, the fastening element 5 has two grooves 17 at the edge, in which end sections of the intermediate element 16 are displaceably mounted in the z-direction. The intermediate element 16 is formed on the end as a guide rail 16 ', on which a slide rail 18 is mounted displaceably in the x-direction. The slide rail 18 in turn carries the gripping portion 6 with the receiving element 2 for guiding the carrier. 8
As in the embodiment according to Figures 3 and 4 . However, now in connection with an attachment to a wall 15, a kind of cross slide for supporting the gripping portion 6 of the guide device 1 is thus provided, so that a displaceable adjustment of the position of the receiving element 2 in the direction of the z and x-axis in a structurally simple manner is possible.
To fix the lower end position of the receiving element 2 in the direction of the z-axis of the attachment portion 5 carries a set screw 19 which cooperates with the slide rail 18.
In the 8 and 9 is a further embodiment of a guide device 1 according to the invention shown, in which case the fastening element 5 is fixed to an end face of the ceiling 3. Instead of the frontal arrangement on a ceiling 3, the guide device 1 according to this embodiment can of course also be attached to a wall 15 of the building to be processed. For fixing in the concrete recessed fasteners 3 '' are provided, with which a fixedly arranged fastener 5 is connected by screws.

In Fig. 8 it can be seen that the guide device 1 for the purpose of displaceability of the receiving element 2 in the y-direction has a telescopic arm 20 which is connected to the fastening element 5. For adjustability in the y-direction, a linear drive 20 'is shown, via which the gripping portion 6 can be approximated or removed with the receiving element 2 substantially at the front edge 3' of the ceiling 3.
In addition, a rail is provided on the cantilevered end 21 of the telescopic arm 20, in which the gripping portion 6 of the receiving element 2 is mounted displaceably in the z direction.
In Fig. 9 Furthermore, it can be seen that, for displaceable mounting in the x-direction, an end section 21 'of the telescopic arm 20 is displaceably mounted on the fastening element 5 in the manner of a carriage.

In Fig. 8 is also apparent that the gripping portion 6, can be arranged in the embodiment shown via locking pins 22 in different oblique position. For this purpose, a fixing unit 24 has a plurality of openings 23 arranged at an angle to one another, in which the bolts 22 can be received. As a result, the gripping portion 6 in one of the in Fig. 8 shown horizontal position deviating inclination are positioned so that a carrier 8 occupies a recorded in the receiving element 2 a position differing from the vertical orientation shown basic position. In currently available on the market guide devices, such as the Xclimb 60, the Doka GmbH, in principle, a pivotability of the carrier 8 in the receiving element 2 can be achieved by +/- 10 °. In order to allow a further inclination, the gripping portion 6 can therefore be arranged correspondingly inclined.
In the Fig. 10a to 10c schematically shows the sequence of a method according to the invention, with which a change in the inclination of the protective element 9 can be achieved in a simple manner.

For this purpose, at least two guide devices 1 are provided in two superimposed projectiles, wherein in the upper ceiling 3, two linear drive elements 25, eg Hydrauklikzylnder be attached, which are provided for lifting the protective element 9, for example, about 10 cm. As a result, the vertical load on the upper ceiling 3 and the upper guide devices 1 is shifted, so that the lower guide devices 1 are mounted displaceably in the horizontal direction without vertical load.
Then, a linear drive element 25 is removed (in Fig. 10b , the left-hand element), so that a pivot point 26 results in the connection between the carrier 8 and receiving element 2 for the protective element 9 when driving the remaining linear drive element 25. Here, the protective element 9 is first pivoted about this pivot point 26 in an orientation in which upper or lower edges of the protective element 9 are arranged substantially horizontally (see. Fig. 10b ). Subsequently, the remaining hydraulic cylinder is further extended, whereby the protective element 9 is further pivoted about the pivot point 26 until the desired inclination is achieved. Subsequently, the further linear drive element 25 is added again, so that with synchronous drive of the two linear drive elements 25 then a displacement of the protective element 9 along the longitudinal extension of the carrier 8 is achieved without further pivotal movement.

Claims (11)

1. Device for guiding a support for a formwork or protection element (9) when working on buildings, comprising at least one guide device (1) for receiving a support (8), the guide device (1) having a receiving element (2) for the support (8) and a fastening element (5) which is immovably fastened to a ceiling (3) of the building to be worked on, characterised in that the receiving element (2) is connected to the fastening element (5) in such a way that the receiving element (2) is mounted so as to be able, in an imaginary Cartesian coordinate system having a substantially vertically arranged z-axis, a substantially horizontally extending y-axis which extends obliquely with respect to a plane spanned by a façade of the building to be worked on, preferably extending substantially perpendicularly to this plane, and an x-axis extending perpendicularly to the plane spanned by the z-axis and y-axis, to move in the direction of the x-, y- and z-axis, the guide device (1) having a support arm (1') which is mounted so as to be able to move in the direction of the x-axis by means of at least one rail (4') extending substantially perpendicularly to the longitudinal extension direction of the support arm (1'), the support arm (1') of the receiving element (2) being arranged on a height-adjustable table (10) in order to mount the receiving element (2) so as to be able to move in the direction of the z-axis, a scissor lift table being provided as the table (10).
2. Device according to claim 1, characterised in that the support arm (1') is mounted so as to be able to move in the direction of the x-axis by means of two rails (4') extending substantially perpendicularly to the longitudinal extension direction of the support arm (1').
3. Device according to claim 2, characterised in that the rail(s) (4') is/are intended to be arranged on a ceiling (3) of the building to be worked on.
4. Device according to either claim 2 or claim 3, characterised in that the support arm (1') of the receiving element (2) has a movable portion which comprises a front gripping portion (6), such that the gripping portion (6) comprising the receiving element (2) is mounted so as to be able to move in the direction of the y-axis.
5. Device according to any of claims 1 to 4, characterised in that the orientation of the gripping portion (6) with respect to the rest of the guide device (1) can be changed such that an oblique position can be set with respect to a home position which, in the fastened state, extends substantially in the horizontal direction.
6. Device according to claim 5, characterised in that a plurality of receiving openings having various orientations are provided in a fixing unit of the guide device in order to adjust the inclination of the gripping portion (6).
7. Device for guiding a support for a formwork or protection element (9) when working on buildings, comprising at least one guide device (1) for receiving a support (8), the guide device (1) having a receiving element (2) for the support (8) and a fastening element (5) which is immovably fastened to a wall (15) or an end face of a ceiling (3), characterised in that the receiving element (2) is connected to the fastening element (5) in such a way that the receiving element (2) is mounted so as to be able, in an imaginary Cartesian coordinate system having a substantially vertically arranged z-axis, a substantially horizontally extending y-axis which extends obliquely with respect to a plane spanned by a façade of the building to be worked on, preferably extending substantially perpendicularly to this plane, and an x-axis extending perpendicularly to the plane spanned by the z-axis and y-axis, to move in the direction of the x-, y- and z-axis, the guide device (1) having a telescopic arm (20) connected to the fastening element (5) to facilitate the movability of the receiving element (2) in the direction of the y-axis.
8. Device for guiding a support for a formwork or protection element (9) when working on buildings, comprising at least one guide device (1) for receiving a support (8), the guide device (1) having a receiving element (2) for the support (8) and a fastening element (5) which is immovably fastened to a wall (15), characterised in that the receiving element (2) is connected to the fastening element (5) in such a way that the receiving element (2) is mounted so as to be able, in an imaginary Cartesian coordinate system having a substantially vertically arranged z-axis, a substantially horizontally extending y-axis which extends obliquely with respect to a plane spanned by a façade of the building to be worked on, preferably extending substantially perpendicularly to this plane, and an x-axis extending perpendicularly to the plane spanned by the z-axis and y-axis, to move in the direction of the x- and z-axis, the receiving element (2) being mounted so as to be able to move in a plane which extends substantially in the vertical direction and is spanned by the z- and x-axis, the fastening element (5) being intended to be immovably fastened to a wall of the building to be worked on, the fastening element (5) having at least one groove (17) extending in the direction of the z-axis and in which at least one end portion of an intermediate element (16) engages.
9. Device according to claim 8, characterised in that the intermediate element (16) is connected to a slide rail (18) which is mounted so as to be able to move in the direction of the x-axis and to which the gripping portion (6) provided for receiving the support (8) is fastened.
10. Method for moving at least one formwork or protection element (9) when working on buildings, a formwork or protection element being connected to at least two supports (8) and the two supports (8) being connected to two guide devices (1) in each case, the guide devices (1) being arranged so as to be spaced apart in pairs in the vertical direction, preferably at a distance from a storey of the building to be worked on, and the upper guide devices (1) being associated with an upper storey ceiling (3) and the lower guide devices (1) being associated with a lower storey ceiling (3), the guide devices (1) each having a receiving element (2) for the support (8) and a fastening element (5) which is immovably fastened to an element of the building to be worked on, characterised in that the receiving element (2) is connected to the fastening element (5) in such a way that the receiving element (2) is mounted so as to be able, in an imaginary Cartesian coordinate system having a substantially vertically arranged z-axis, a substantially horizontally extending y-axis which extends obliquely with respect to a plane spanned by a façade of the building to be worked on, preferably extending substantially perpendicularly to this plane, and an x-axis extending perpendicularly to the plane spanned by the z-axis and y-axis, to move in the direction of the x-, y- and z-axis, two linear drive elements (25) being arranged which are supported on the upper story ceiling (3) and by means of which the formwork or protection element is raised, one linear drive element (25) then being removed, and the formwork or protection element (9) being pivoted about the connection between the other guide devices (1) and the support (8) by means of the remaining linear drive element (25).
11. Method according to claim 10, characterised in that the second linear drive element (25) is re-introduced.

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