EP3788222A1

EP3788222A1 - Means for securing against operating errors for leaves of a window or door that can be slid together

Info

Publication number: EP3788222A1
Application number: EP19720114.8A
Authority: EP
Inventors: Winfried Reich
Original assignee: Roto Frank Fenster und Tuertechnologie GmbH
Current assignee: Roto Frank Fenster und Tuertechnologie GmbH
Priority date: 2018-05-03
Filing date: 2019-04-25
Publication date: 2021-03-10
Anticipated expiration: 2039-04-25
Also published as: PL3788222T3; EP3788222B1; US20200392776A1; WO2019211147A1; ES2950120T3; CN111566302A; US12006748B2; CA3088482A1; KR20210003719A; CN111566302B; EP3788222C0; DE102018110603B4; DE102018110603A1; KR102524238B1

Abstract

The invention relates to a fitting assembly (34) and a window or a door (10) comprising a fitting assembly (34) of this type. The fitting assembly (34) has a means (36) for securing against operating errors. The means (36) for securing against operating errors has a first protrusion (38) which can be moved, in particular vertically, relative to a second protrusion (40) by means of a first operating rod assembly (24a). A buffer can be provided between the end sides of the first protrusion (38) and the second protrusion (40). The first protrusion (38) can be designed as a cylinder and/or the second protrusion (40) can be designed such that it extends in an elongated manner in the vertical direction. Particularly preferably, the fitting assembly (34) can have an anti-lifting means with a third protrusion which prevents a lifting of the first leaf (14a). The fitting assembly (34) has preferably multiple carriages and multiple sliders in order to position leaves (14a, 14b) of the window or the door (10) into their slide position in parallel with the main plane of the window or the door (10). In contrast, in the blocking position, the leaves (14a, 14b) can be pressed against a fixed frame (12) of the window or the door (10) via the fitting assembly (34) with multiple carriages and multiple sliders, in order to reliably seal the window or the door (10).

Description

Misuse assurance for collapsible wings of a window or door

Background of the invention

The invention relates to a fitting arrangement for two successive pushed

Wing of a window or door, the fitting arrangement comprising

a) a first espagnolette for a first wing, wherein the first espagnolette is movable in a sliding position in which the first wing is slidable, and in a blocking position in which the first wing is not slidable;

b) a second drive rod assembly for a second wing, wherein the second drive rod assembly is movable in a sliding position in which the second wing is slidable, and in a Biockadesteilung in which the second wing is not slidable.

The invention further relates to a window or a door with such a fitting arrangement. It is known to provide fitting arrangements for a window or a door in order to be able to move two wings, which can each be opened and closed, into a sliding position or a blocking position. When the window is closed or the door is closed, the wings touch the front side.

The wings can be designed so that a first wing, usually called "passive wing", must first be closed before a second

Can be closed, this is particularly because, in some embodiments, the two wings for opening from the fixed frame of the window or the door of the

Blockadeestellung be turned off in the sliding position. In this case, the frontal contours of the wings can be coordinated so that the passive wing is not off the fixed frame, as long as the active wing is still in the blockade position. Alternatively or additionally, a non-movable closing piece may be provided on the passive wing, which collides with a locking pin on the active wing when the active wing is first closed and only then the passive wing is closed. Finally, the wings may be configured to damage a seal on one of the wings when first the active wing and then the passive wing is closed.

In known fitting arrangements, therefore, the user must be careful, in the case of both open wings, first to close the passive wing and

then the active wing. However, some users are not familiar with this, especially if they are foreign to their windows or doors in hotels or the like. It is therefore often the case

Damage to such windows or doors due to incorrect operation.

Aufaabe the invention

It is therefore the object of the invention to provide a generic fitting arrangement which prevents incorrect operation. It is still the task of Invention to provide a window or a door with such a fitting arrangement.

Description of the invention

This object is achieved by a fitting arrangement according to claim 1 and a window or a door according to claim 9. The dependent claims give preferred developments again.

The object according to the invention is thus achieved by a fitting arrangement for two displaceable wings of a window or a door, wherein the wings in the collapsed state adjoin one another at the end face and wherein the fitting arrangement has the following:

b) a second drive rod assembly for a second wing, wherein the second drive rod assembly in a sliding position in which the second wing is slidable, and in a blocking position, in which the second wing is not slidable, is movable;

wherein the fitting arrangement on the first drive rod arrangement has a first projection and the fitting arrangement has a second projection which can be arranged on the second wing,

wherein the first projection in the blockage position of the first

Espagnolette can pass the second projection in the closing movement of the wings and in the sliding position of the first

Espagnolette assembly collides with pushing together the wings with the second projection. The terms "sliding position" and "blockage position" refer to the possibility of the wing by means of the fitting arrangement relative to the fixed

Move frame. The collision of the first projection with the second projection, when the passive wing (first wing) is in the sliding position and both wings are moved towards each other frontally, prevents the complete

Pushing together the two wings. The user is thereby forced to bring the passive wing first in the blockage position. Then, the second projection on the first projection moves past and also the active wing (second wing) are pushed onto the passive wing. This can be a

Incorrect operation and damage to the fitting arrangement or the window or the door can be safely avoided.

The first projection is in the sliding position of the first

Espagnolette preferably vertically at the height of the second projection, so that the two projections when closing the wing at least partially, in particular completely, frontally meet.

The fitting arrangement is preferably designed such that the first projection in the blocking position is in an end position of the first

Espagnolette is located. Then, the first espagnolette assembly can not be operated incorrectly in abutting wings, as a

Displacement of the first projection could only take place from this end position, this shift is blocked by the second projection. The invention then provides both a dead-lock and a

Shift sequence control ready. The first projection preferably extends in the direction of the second

Driving rod arrangement. The second projection preferably extends in the direction of the first drive rod assembly.

The first projection preferably engages over the second projection in the blocking position.

The first projection may be bolt-shaped. The second projection may be block-shaped. The second projection may be movably arranged on the second wing. For this purpose, the second projection may be arranged or formed on the second drive rod arrangement. Preferably, however, the second projection is fixed to the second wing, so immovable relative to the second wing, can be arranged.

In a further preferred embodiment of the invention, the first projection and / or the second projection on its end face at least partially a, in particular elastic, buffer on to dampen the impact of the first projection on the second projection. At least one buffer may be in the form of a rubber buffer.

To secure the first wing against a lifting and additional

To provide burglary protection, the fitting assembly may include a third protrusion that is mountable to the first wing or to the fixed frame. The third projection may be supported in the blockage position of the first wing on the second wing and / or the fixed frame. If the third projection is mounted on the fixed frame, the third projection on the first wing or a part of the fitting arrangement can be supported on the first wing.

Particularly preferably, the third projection engages under the second

Advantage with closed wings. More preferably, the second projection is arranged between the first projection and the third projection. For burglar-proof mutual fixing of the wings, the

Fitting arrangement comprise a lock pin which can be arranged on the second drive rod arrangement and a closing piece which can be fixedly arranged on the first wing for at least partially receiving the lock pin. To the

To further increase immunity to burglary, the fitting arrangement may comprise at least one further locking piece which can be arranged on the first wing and at least one corresponding further locking pin on the second

Have driving rod assembly. The further closing piece is preferably the same design as the closing piece. The further locking pin is

preferably the same design as the locking pin.

The locking piece may have a web and the locking pin may have a mushroom head for engaging behind the web in the blocking position of the second

Have drive rod assembly, so that the wings can not be pulled apart when the locking pin engages behind the web. The retraction of the locking pin in the closing piece is preferably carried out parallel to the main plane of the window / the door or the fitting arrangement, in particular in the vertical direction.

The fitting arrangement may comprise at least one carriage and at least one slider to at least one wing for opening relative to the

Blockage position transversely, in particular perpendicular, to the main plane of the window or the door off. The term "slider" describes a component for the top-side parking of a wing and also includes embodiments which are guided via a roller or the like on the fixed frame to turn off than in the

Blocking position.

The object of the invention is further achieved by a window or a door with a fixed frame, two frontally movable wings and one mounted on the wings, described here

Fitting assembly.

The second projection is preferably fixedly arranged on the second wing.

If the fitting arrangement has a third projection, this is

preferably arranged firmly on the first wing.

The two wings can be designed so that they are movable only in the main plane of the window or the door. The two wings can each be raised to transfer from the blockage position in the sliding position. Alternatively, the wings can be designed parallel to the fixed frame off the fixed frame and displaceable. In this case, i) the first wing in the sliding position of the first drive rod assembly is farther off or off the fixed frame than in FIG

Blockade position of the first drive rod assembly and

ii) the second wing in the sliding position of the second

Espagnolette further off the fixed frame or turned off than in the blocking position of the second drive rod assembly.

The wings are in the sliding position preferably each between 1mm and 40mm, in particular between 2mm and 30mm, more preferably between 4mm and 20mm, further turned off than in the blockage position.

The first wing can by the first drive rod assembly in the

Sliding position must be unlocked for parking, so that a user must additionally operate the first wing to the first wing in the

Transfer shift position. Alternatively, the first wing can be moved by the first drive rod arrangement positively shutdown in the sliding position. The second wing can by the second drive rod assembly in the

Sliding position be enabled for parking, so that a user must additionally operate the second wing to the second wing in the

Transfer shift position. Alternatively, the second wing can be moved by the second drive rod arrangement positively shut in the sliding position.

For actuating the wings, the fitting arrangement may have a first handle coupled to the first drive rod arrangement and one with the second Espagnolette having coupled second handle. Alternatively or additionally, the first wing may include a first drive for actuating the first drive rod assembly. Alternatively or additionally, the second wing may have a second drive for actuating the first

Have driving rod assembly.

The fitting arrangement can be designed for closing, sliding-opening and tilt-opening of the first wing. The fitting arrangement can-alternatively or in addition to the tilt-opening of the first wing-be designed for slit-ventilating the first wing. Furthermore, the fitting arrangement for closing, sliding-opening and tilt-opening of the second wing may be formed. The

Fitting arrangement can - alternatively or in addition to the tilt-open of the second wing - be designed for slit ventilation of the second wing. Preferably, however, the first drive rod assembly, in particular the first handle, exclusively two switching positions, namely a first

Switching position in which the first drive rod assembly in the

Blockadestellung is and a second switching position, in which the first drive rod assembly is located in the Schiebesteliung.

The second drive rod assembly, in particular the second handle, can

having only two switching positions, namely a first switching position in which the second drive rod assembly is in the blocking position and a second switching position in which the second drive rod assembly is in the sliding position.

Further features and advantages of the invention will become apparent from the description and the drawings. Likewise, according to the invention, the above-mentioned features and those which are still further developed can each be used individually for themselves or for a plurality of combinations of any kind. The embodiments shown and described are not to be understood as exhaustive enumeration, but rather have exemplary character for the description of the invention. Detailed description of the invention and drawing

1 shows a side view of a schematically illustrated door with a fitting arrangement, which has a faulty locking device,

Fig. 2a shows a part of the fitting assembly of FIG. 1, wherein a

first wing is in the blockage position and a second wing is in the sliding position.

FIG. 2b shows the fitting arrangement according to FIG. 2a, wherein the second wing is also in the blocking position.

Fig. 2c shows the fitting arrangement according to Fig. 2a, wherein the first wing is in the sliding position.

Fig. 3 shows a further embodiment of a fitting arrangement with a variant of a lift-out, the spatially separated from the

Fault control is provided.

4 shows a further exemplary embodiment of a fitting arrangement with a further variant of a lift-out safety device, which is provided spatially separated from the faulty safety device.

FIG. 5 shows a schematic view of the arrangement of the wings in FIG. 1. FIG.

Fig. 6a shows sectional views of the wings of FIG. 1, wherein both wings are in the blockage position.

Fig. 6b shows sectional views of the wings of FIG. 6a, wherein both wings are in the sliding position.

Fig. 6c shows sectional views of the wings of FIG. 6a, wherein the first wing in the blockage position and the second wing in the

Sliding position is located.

Fig. 6d shows sectional views of the wings of FIG. 6a, wherein the first

Wing in the sliding position and the second wing in the

Blockade position is located. Fig. 1 shows a door 10 with a partially illustrated fixed frame 12. Die

Door 10 has a first wing 14a and a second wing 14b. The

Wings 14a, 14b are pushed toward one another in the direction of the arrows 16a, 16b in order to close the door 10. The fixed frame 12 has a running rail 18, on the carriages 20a, 20b, 20c, 20d are movable to move the wings 14a, 14b. The wings 14a, 14b are supported on the upper side via sliders 22a, 22b, 22c, 22d on the fixed frame 12. The carriages 20a-20d and the sliders 22a-22d are operable by a first drive rod assembly 24a on the first wing 14a and by a second drive rod assembly 24b on the second wing 14b to disengage the wings 14a, 14b from the fixed frame 12 in the sliding position. The actuation of the drive rod assemblies 24a, 24b can take place via a first handle 26a or second handle 26b shown schematically and offset in FIG. The first handle 26a is coupled to the first drive rod assembly 24a via a first gear 28a of the first drive rod assembly 24a. The second handle 26b is coupled to the second drive rod assembly 24b via a second gear 28b of the second drive rod assembly 24b.

The fixed connection of the wings 14a, 14b is effected by frontal connections, each comprising a closing piece 30a, 30b, 30c, 30d, wherein in the

Striker each a locking pin 32a, 32b, 32c, 32d engages (see also the illustration of the striker 30a and the locking pin 32a in the upper figures of Figures 6a-6d).

In Fig. 1, the handles 26a, 26b with solid lines in the

Blockage position shown. Dashed lines indicate the sliding position of the handles 26a, 26b. The handles 26a, 26b preferably have only two switching positions, so that the wings 14a, 14b are directly - while avoiding a tilted position or gap opening position - from the blockage position into the sliding position can be transferred.

The wings 14a, 14b are thus actuated by a fitting arrangement 34. The wings 14a, 14b, which in the closed, ie mutually locked, state abut each other frontally, must in a particular order getting closed. The first wing 14a, also called "passive wing", must be closed in front of the second wing 14b, also called "active wing", in order to avoid collisions in the area of the end faces of the wings 14a, 14b or

To avoid closing pieces 30a-30d with the locking pins 32a-32d. This closing order is enforced by a misoperation fuse 36 which will be described below.

FIG. 2 a shows a section of the door 10 or the fitting arrangement 34 in the region of the misuse safety device 36. The misoperation safety device 36 has a first projection 38 and a second projection 40. The first

Projection 38 is movably disposed on the first wing 14a. The first

Projection 38 is preferably fixed to the first

Espagnolette 24a arranged, in particular riveted. The first drive rod assembly 24a may be below a first cuff rail 42a

be arranged. The first projection 38 may be in the form of a bolt. The second projection 40 is preferably fixedly arranged on the second wing 14b, in particular on a second cuff rail 42b and / or directly on the wing profile. The second projection 40 may be formed cuboid.

FIG. 2b shows the door 10 according to FIG. 2a, wherein the wings 14a, 14b have been moved towards one another in relation to their position in FIG. 2a. The first

Espagnolette assembly 14a is in the blockage position. The first projection 38 may pass the second projection 40 in this blockage position. In the present embodiment, the first protrusion 38 may pass the second protrusion 40 vertically above the second protrusion 40.

From Fig. 2b is further seen that the fitting assembly 34 a

Lift-out 44 has. The lifting lock 44 has a third projection 46. The third projection 46 may be cuboidal. The third projection 46 may be fixedly disposed on the first wing 14a. The third projection 46 can be fastened in particular to the first face-plate rail 42a and / or directly on the wing profile. The third projection 46 prevents lifting of the first wing 14a, since the third projection 46 abuts on the second projection 40 in this case. The third projection 46 is therefore preferably arranged below the second projection 40. Particularly preferably, the second projection - in the vertical direction - between the first projection 38 and the third projection 46 is arranged.

Fig. 2c shows the door 10 of FIG. 2a, wherein the first

Espagnolette 24a not in the blockage position, but in the

Sliding position is located. The first projection 38 is located in this

Shifting position vertically at the height of the second projection 40, so that the two projections 38, 40 at the closing of the wings 14a, 14b at least partially, in particular completely, frontally meet. This prevents further closing of the wings 14a, 14b as long as the first wing 14a is not in the blocking position. Damage to the Beschiaganordnung 34 due to this incorrect operation is thereby avoided.

In the sliding position of the first wing 14a shown in Fig. 2c, the first drive rod assembly 24a can be actuated to transfer the first projection 38 into the blockage position shown in Fig. 2b. In contrast, the first drive rod assembly 24a is not operable in the blockage position shown in Fig. 2b at collapsed wings 14a, 14b, so that a

Misoperation of the first drive rod assembly 24a is excluded.

The first projection 38 and / or the second projection 40 may include a buffer 48 to dampen the impact of the first projection 38 with the second projection 40.

Fig. 3 shows another embodiment of a door 10 with a

Fitting assembly 34. The embodiment of FIG. 3 corresponds to that of FIGS. 1 to 2c described embodiment. However, the third projection 46 is spaced from the second projection 40. Furthermore, the fitting assembly 34 has a fourth projection 50, to which the d _ri th projection 46 in the closed state of the door 10 abuts upwards to form a lift-off 44 for the first wing 14 a.

Fig. 4 shows another embodiment of a door 10 with a

Fitting arrangement 34. The embodiment according to FIG. 4 corresponds to that shown in FIGS. 1 to 2c described embodiment. However, the third projection 46 is mounted on the fixed frame 12. A part of the fitting arrangement 34, in particular a slider, in this case the slider 22a, abuts vertically on the third projection 46 when the first wing 14a is lifted, thereby forming a lift-out securing device 44.

Fig. 5 shows a schematic view of the in Figs. From Fig. 5 it can be seen that the wings 14a, 14b are arranged in "Scheme C." Preferably, the wings 14a, 14b are arranged on the outside, as shown in Fig. 5. The sliding The two wings 14a, 14b are illustrated in Fig. 5 by the arrows 16a, 16b in the main plane of the door 10. The wings 14a, 14b are shown in the blocking position in Fig. 5. They are opened to open the wings 14a, 14b , preferably perpendicular to the main plane of the door 10. The possible positions of the wings 14a, 14b are shown in FIGS.

FIG. 6a shows the door 10 with wings 14a, 14b abutting against each other. The wings 14a, 14b are both in the blockage position and with each other

locked, as can be seen from the latching piece 30a in the locking pin 32a. The first protrusion 38 has passed the second protrusion 40, so that the wings 14a, 14b were approachable.

FIG. 6b shows the door 10 according to FIG. 6a, wherein both the first wing 14a and the second wing 14b are in the sliding position. In contrast to the illustration according to FIG. 6a, a mushroom head 52 of the locking pin 32a does not engage behind a web 54 of the closing piece 30a. The striker 30a is

Preferably arranged on the first wing 14a that the

Locking pin 32a only in the vertical direction in the closing piece 30a on and can extend. The first projection 38 abuts the front side on the second

Projection 40, so that the wings 14a, 14b can not be moved towards each other, as long as the first wing 14a is not in the blockage position.

Fig. 6c shows the door 10, wherein the first wing 14a in the blockage position and the second wing 14b is in the sliding position. Because the first

Projection 38 can pass the second projection 40, the second wing 14 b can be easily transferred to the blockage position.

Fig. 6d shows the door 10 with the first wing 14a in the sliding position and the second wing 14b in the blocking position. The abutment of the first projection 38 on the second projection 40 prevents another

Pushing together the wings 14a, 14b. This also prevents damage to a seal 56, which is arranged between the wings 14a, 14b.

Taking a synopsis of all the figures of the drawing, the invention relates in summary to a fitting arrangement 34 and a window or a door 10 with such a fitting arrangement 34. The fitting arrangement 34 has an incorrect operation safety device 36. The misuse safety device 36 has a first projection 38 which, in particular vertically, by means of a first

Espagnolette 24a relative to a second projection 40 is movable. Between the end faces of the first projection 38 and the second

Projection 40, a buffer 48 may be provided. The first protrusion 38 may be cylindrical and / or the second protrusion 40 may be elongated in the vertical direction. More preferably, the fitting assembly 34, a lift-off 44 with a third

Projection 46, which prevents lifting of the first wing 14a. The fitting assembly 34 preferably includes a plurality of carriages 20a-20d and a plurality of sliders 22a-22d for stopping wings 14a, 14b of the window or door 10 in their sliding position parallel to the main plane of the window or door 10. In the blockage position, the wings 14a, 14b on the other hand be pressed by the fitting assembly 34 with a plurality of carriages 20a-20d and a plurality of sliders 22a-22d against a fixed frame 12 of the window or door 10 to reliably seal the window or the door 10.

LIST OF REFERENCE NUMBERS

10 door

12 fixed frame

14a first wing

14b second wing

16a closing direction of the first wing

16b closing direction of the second wing

18 track rail

20a-20d carriage

22a-22d glider

24a first drive rod assembly

24b second drive rod assembly

26a first grip

26b second handle

28a first transmission

28b second gear

30a-30d striker

32a-32d locking pin

34 fitting arrangement

36 fault control

38 first advantage

40 second lead

42a first faceplate

42b second faceplate

44 Lift-out protection

46 third lead

48 buffers

50 fourth lead

52 mushroom head

54 footbridge

56 seal

Claims

claims

1. fitting arrangement (34) for two successively slidable wings (14a, 14b) of a window or a door (10), wherein the

Fitting arrangement (34) has the following:

a) A first drive rod assembly (24a) for a first

Wing (14a), wherein the first drive rod assembly (24a) in a sliding position in which the first wing (14a) is slidable, and in a blockade position, in which the first wing (14a) is not slidable, is movable;

b) a second drive rod assembly (24b) for a second

Wing (14b), wherein the second drive rod assembly (24b) is movable to a push position in which the second wing (14b) is slidable and to a blocking position in which the second wing (14b) is not slidable;

characterized,

in that the fitting arrangement (34) at the first

Espagnolette (24a) has a first projection (38) and the fitting arrangement (34) on the second wing (40) can be arranged second projection (40),

wherein the first projection (38) in the blockage position of the first

Espagnolette (24a) the second projection (40) during

can pass one another to push the wings (14a, 14b) and collides in the sliding position with the second projection when the wings (14a, 14b) are pushed toward each other.

2. fitting arrangement according to claim 1, wherein the first projection (38) is bolt-shaped.

3. fitting arrangement according to claim 1 or 2, wherein the second

Projection (40) fixed to the second wing (14 b) can be arranged.

4. Fitting arrangement according to one of the preceding claims, wherein the first projection (38) and / or the second projection (40) on its end face a buffer (48) / have to the impact of the first projection (38) on the second To dampen the projection (40).

5. Fitting arrangement according to one of the preceding claims, wherein the fitting arrangement (34) has a third projection (46) which can be arranged on the first wing (14 a) or the fixed frame (12) to the first wing (14 a) against a Raising to secure.

6. fitting arrangement according to claim 5, wherein the third projection (46) engages under the second projection (40) at closed wings (14 a, 14 b).

7. Fitting arrangement according to one of the preceding claims, wherein the fitting arrangement (34) one on the second

Espagnolette (24b) can be arranged lock pin (32a-32d) and one on the first wing (14a) fixedly arranged closing piece (30a-30d) for at least partially receiving the locking pin (32a-32d).

8. fitting arrangement according to claim 7, wherein the closing piece (30a-30d) has a web (54) and the locking pin (32a-32d) a

Mushroom head (52) for engaging behind the web (54) in the blockage position of the second drive rod assembly (24b).

9. window or door (10) with a fixed frame (12), two mutually sliding wings (14 a, 14 b) and one of the wings (14 a, 14 b) mounted fitting assembly (34) according to any one of the preceding claims.

10. Window or door according to claim 9 in conjunction with claim 3, at

the second projection (40) is fixedly arranged on the second wing (14b).

11. A window or door according to claim 9 or 10 in conjunction with claim 5, wherein / the third projection (46) fixed to the first wing (14 a) is arranged.

12. Window or door according to one of claims 9 to 11, wherein / the

i) the first wing (14a) in the sliding position of the first

Espagnolette (24 a) farther from the fixed frame (12) is turned off or turned off than in the blockage position of the first drive rod assembly (24 a) and

ii) the second wing (14b) in the sliding position of the second

Espagnolette (24b) further from the fixed frame (12) is turned off or turned off than in the blockage position of the second drive rod assembly (24b).

13. Window or door according to one of claims 9 to 12, wherein / the Beschiaganordnung (34) one with the first

Espagnolette (24a) coupled to the first handle (26a) and with the second drive rod assembly (24b) coupled second handle (26b).

14. A window or door according to claim 13, wherein / the first handle (26a) has only two switch positions, namely a first

Switching position in which the first drive rod assembly (24a) is in the blocking position and a second switching position in which the first drive rod assembly (24a) is in the sliding position.

15. A window or door according to claim 13 or 14, wherein / the second handle (26b) has only two switch positions, namely a first switch position in which the second drive rod assembly (24b) in the

Blockadestellung is and a second switching position in which the second drive rod assembly (24b) is in the sliding position.