EP2754845B1 - Drive unit for a vertical blind and vertical blind with such a drive unit - Google Patents

Description

The invention relates to a swivel gear for a vertical blind for pivoting slats from a first end position into a second end position deviating from the first end position and / or from the second end position into the first end position, which can be displaced along a mounting rail for closing and / or opening the vertical blind is, with a pivot pin for attaching a crank rod, the pivot pin is rotatable about its longitudinal axis and is coupled to a slide which from a first end position to a second end position different from the first end position and / or from the second end position to the first end position is movable.

Such a swivel gear is from the DE 195 25 139 A1 known. Here, the carriage of the slats of the vertical blind and the swivel gear are slidably guided in the same channel. The swivel gear has a swivel pin for arranging a crank rod, the swivel pin being guided by means of a link such that the crank rod is arranged laterally outside the closed curtain plane in the first and second end positions of the slats. When changing from the first end position to the second end position or vice versa, the pivot pin and thus the crank rod swivels from a first side of the closed curtain level to a second side of the closed curtain level facing away from the first side. In addition, the swivel gear can be moved in the longitudinal direction of the mounting rail by means of the crank rod, as a result of which the lamella carriages can be moved together or moved apart.

It is disadvantageous that moving the slats together and / or moving them apart in the case of vertical blinds for opening and / or closing the curtain along the mounting rail is not the case with a closed curtain or the slats in the first or second End position should be done. With a closed curtain, the slats, in particular the slat surfaces, are preferably oriented essentially in the longitudinal direction or parallel to the mounting rail in the first end position and / or the second end position. However, if the slat carriage is moved along the mounting rail with a closed curtain or with slats in the first or second end position, this can represent incorrect operation and there is a risk that the slats will get caught and / or damage the vertical blind comes.

It is therefore the problem underlying the invention to further develop a slewing gear of the type mentioned at the outset in such a way that the risk of incorrect operation and / or hooking of slats due to a displacement of the slats aligned in the longitudinal direction of a mounting rail is reduced.

The problem underlying the invention is solved by a swivel gear of the type mentioned, in which at least one fixing element is provided for providing a displacement limitation for the swivel gear with respect to the mounting rail in the first end position and / or the second end position, by means of the slide in the first end position the locking position of the locking element in the first end position of the slats and / or in the second locking position the locking position of the locking element in the second end position of the slats can be realized.

It is advantageous here that the slats can be prevented from being displaced in the first and / or second end position along the mounting rail in at least one direction of displacement of the swivel gear. In particular, the fixing element serves to fix the position of the swivel gear. Preferably, fixing and / or fixing the position is also to be understood as a restriction of the free travel path for the swivel gear. In this way, closing and / or opening of the vertical blind with slats in the first end position and / or the second end position can be prevented. Incorrect operation and hooking of the slats and / or damage to the vertical blind can thus be avoided. In particular, the vertical blind is opened and / or closed on the basis of a

Movement of the slats and / or the carriages along the mounting rail. The movement of the slats and / or carriages can be controlled by moving the swivel gear along the mounting rail. If, for example, the swivel gear is moved in a first direction along the mounting rail, the swivel gear can push the slats and / or carriages together. If the swivel gear is moved along the mounting rail in a direction opposite to the first direction, the slats and / or carriages are pulled apart, in particular by means of spacers connecting the swivel gear and / or the slats and / or carriages. In particular, the curtain is opened and / or closed due to a rotational movement of the slats about their respective longitudinal axes. In the case of a closed curtain, the slats or slat surfaces are oriented essentially in the longitudinal direction or parallel to the longitudinal axis of the mounting rail. When the curtain is open, the slats or slat surfaces are oriented transversely, in particular at right angles, to the longitudinal axis of the mounting rail. In particular, when the curtain is open, there is a light gap between two immediately adjacent slats. The swivel gear preferably has a support structure, in particular a gear frame and / or a gear housing. This support structure can have a sliding device for displacing the support structure along the support rail.

According to a further embodiment, the locking element assumes a locking position in the first end position and / or the second end position of the slats and interacts with the mounting rail. The fixing element can cooperate with the support rail for fixing the swivel gear, in particular the support structure, by means of a non-positive, frictional and / or positive connection, in particular a frictional connection and / or latching connection. In particular, the fixing element can be pressed against the mounting rail with a force, so that displacement of the swivel gear along the mounting rail is prevented. The fixing element can preferably be moved from a release position into the fixing position or from the fixing position into the release position by actuating the swivel gear. Thus, the function of fixing and releasing is coupled with the usual function of the swivel gear with regard to the displaceability in the longitudinal direction of the mounting rail. This eliminates the need for a separate actuation for fixing and releasing the swivel gear. Preferably, the usual function of the swivel gear enables the slats to be rotated about their longitudinal orientation and / or the slats to move and / or move apart along the mounting rail.

According to a further development, the fixing element protrudes in the fixing position from the swivel gear and / or the support structure, in particular in the direction of the support rail. Preferably, the fixing element in the release position is at least largely within the swivel gear and / or the support structure arranged. This makes it easy to fix and / or release the swivel gear with regard to the movability in the longitudinal direction of the mounting rail. The fixing element can be designed as a stop or an elevation, in particular pivotably arranged in the supporting structure. This stop preferably interacts with a correspondingly designed counter stop which is assigned to the mounting rail and which defines the position of the swivel gear and / or the mounting structure. In particular, a first fixing element for fixing the position of the swivel gear or the support structure in the first end position of the slats and a second fixing element for fixing the position of the swivel gear or the support structure in the second end position of the slats are provided.

According to a further embodiment, the fixing element in the fixing position interacts with a fixing receptacle assigned to the mounting rail, in particular a latching device, for at least partially receiving the fixing element. The fixing receptacle preferably extends at least largely along the longitudinal orientation of the support rail and / or the channel, in particular along a displacement path for the swivel gear and / or the support structure, the slats and / or the carriages. The position of the swivel gear can thus be fixed at a freely selectable point along the mounting rail. Furthermore, the position of the lamella carriage and / or the swivel gear can be defined at any point along the channel. The swivel gear can preferably be fixed at a freely selectable position and / or at one of a plurality of positions along the channel, in particular evenly distributed in the longitudinal direction of the channel. If there are a plurality of predetermined positions for fixing the swivel gear, the plurality of positions are preferably immediately adjacent to one another. This results in an almost freely selectable determination of the position.

The fixing receptacle can have a plurality of receiving areas, in particular arranged next to one another in the longitudinal direction of the mounting rail, for receiving the fixing element. A receiving area can be designed to correspond to the shape of the fixing element, wherein any displacement of the swivel gear along the mounting rail is preferably prevented in the fixing position. Alternatively, the receiving area can be designed in such a way that the fixing element and / or the supporting structure can be displaced along the supporting rail within the receiving area, but the travel path is limited in such a way that a movement of the slats and / or the carriages along the supporting rail is prevented. The receiving areas are preferably, in particular uniformly, distributed over the entire length of the fixing receptacle. In particular, the fixing element and / or the swivel gear move in a position between two predetermined and adjacent receiving areas automatically in one of the two predetermined receiving areas.

The receiving areas are preferably delimited in the longitudinal direction of the mounting rail, the fixing receptacle and / or the channel by means of projections. In particular, the projections have at least one stop surface which is provided in the fixing position for interacting with the fixing element. The projection and / or the stop surface in the fixing position thus serves as a counter stop for the fixing element. In particular, a projection has two stop surfaces facing away from each other. The stop surfaces interact with the fixing element in the fixing position of the fixing element. The projections can be designed as webs and / or teeth oriented transversely, in particular at right angles, to the longitudinal direction of the fixing receptacle.

Furthermore, the fixing receptacle can be designed as an integral part of the mounting rail and / or the channel. As a result, the fixing receptacle can already be introduced into the mounting rail during manufacture, in particular as an extrusion profile. Alternatively, the fixing receptacle can be designed as a separate strand element, in particular a link strand and / or a chain strand, which can be connected to the mounting rail in a fixed position. This enables retrofitting of existing systems. The fixing receptacle can preferably be inserted into a profile groove of the mounting rail designed as a profile rail or profile strand. In particular, the strand element or the link strand has a, preferably rigid or flexible, strand to which a plurality of links are attached. A plurality of links are preferably attached, in particular evenly distributed on the strand element or link strand. In particular, a link has a projection, in particular a plurality of projections.

The strand element can preferably be inserted into a profile groove assigned to the mounting rail and / or the channel. In this way, already existing mounting rails can be retrofitted by inserting a fixing receptacle into a suitable profile groove. The strand element can be self-clamping in the profile groove and / or can be fixed in position by means of additional fixing means. Adhesives, screws, nails, pins and / or end caps for the mounting rail and / or the channel can be used as the fixing means. A longitudinal direction of the strand element, the profile groove and / or the mounting rail preferably results from an elongated design in each case. The elongated formation can be linear and / or curved.

The links can each have a functional side, in particular with at least one projection, and a clamping side facing away from the functional side. The functional side is preferably one in the state mounted in the profile groove Groove base facing away from the profile groove, so that a cooperation of the projection with a fixing element is made possible. The clamp side, however, faces the groove base of the profile groove in the assembled state. A clamping web extending in the longitudinal direction of the fixing receptacle and / or the channel is preferably arranged on the clamping side.

The clamping web can have at least a first ramp and / or a pedestal, the ramp preferably having an incline starting from the pedestal in the direction of the longitudinal direction of the fixing receptacle and / or the strand. While the platform is in contact with the groove base of the profile groove in the assembled state, the ramp can facilitate insertion of the fixing receptacle, in particular the links, into the profile groove. Such ease of assembly results in an assembly direction or insertion direction in which the ramp for each link is inserted into the profile groove in front of the platform of the same link. In particular, a second ramp facing away from the first ramp is provided. It is advantageous here that the assembly is easier both in a first assembly direction and in a second assembly direction rotated by 180 ° with respect to the first assembly direction. In the case of a flexible strand, a ramp allows the link to be tilted so that the ramp lies against the profile groove and the platform is spaced from the profile groove.

The links preferably each have two guide sides facing away from one another and transversely, in particular at right angles, to the plane of the functional side and / or the clamping side and extending in the longitudinal direction of the fixing receptacle for interacting with the profile groove of the channel. The outer surfaces of the guide sides can rest against an inner surface of two mutually facing inner sides of the profile groove. The profile groove preferably has two mutually facing legs which are assigned to the side walls of the profile groove at an end facing away from a groove base of the profile groove. The free ends of the legs face each other, the legs preferably extending parallel to the plane of the groove base. When the fixing receptacle or the strand element is connected to the profile groove, the legs at least partially include the guide sides and / or the links in an area facing away from the groove base. In particular, due to the interaction of the guide sides with the inner sides of the profile groove, the clamping side with the groove base and the legs of the profile groove with a recess each corresponding to the legs, there is sufficient guidance and / or fastening of the fixing receptacle or the strand element in the profile groove, in particular transverse to the longitudinal orientation of the profile strand.

Of particular advantage is a mounting rail for arranging carriages and a swivel gear for a vertical blind with a channel for guiding and Moving the carriage and the swivel gear, the channel being assigned a fixing receptacle for fixing the position of the swivel gear with respect to the channel. Due to the fixing receptacle assigned to the channel, it is possible to fix or fix the position of the lamella carriage and / or the swivel gear. Thus, when the swivel gear is in a fixed position, the slat carriage is prevented from moving due to a shift of the swivel gear along the channel. In particular, the fixing receptacle can be used to fix the position of the swivel gear and / or the slat carriage in the first end position and / or the second end position of the slats.

Furthermore, a pivot pin, in particular for attaching a crank rod, is provided. The crank rod and / or the throwing rod can preferably be connected in a rotationally fixed manner to the pivot pin. The pivot pin can be rotated about its longitudinal axis. The pivot pin is rotated about its longitudinal axis by rotating the crank rod about its longitudinal axis. In addition, the swivel gear and / or the support structure can be moved along the support rail by means of the crank rod. In addition, the pivot pin is coupled to a slide which can be displaced from a first end position into a second end position different from the first end position and / or from the second end position into the first end position. The locking position of the locking element in the first end position of the slats and / or the locking position of the locking element in the second end position of the slats can be realized in the first end position by means of the slide.

The slider can have at least one projection-like nose. In the first end position and / or second end position of the slide, the nose preferably presses the fixing element into the fixing position. In particular, the slide has a first nose and a second nose facing away from the first nose. The first lug is preferably provided to cooperate with a swivel cover and the second lug to cooperate with the fixing element, in particular in the first end position and / or the second end position of the slide.

A vertical blind with a swivel gear according to the invention is particularly advantageous. A plurality of lamellae are preferably provided, one lamella being attached to a single carriage. The slats can be pivoted about their longitudinal axis from the first end position with a closed curtain to the second end position with a closed curtain and / or from the second end position into the first end position by means of the swivel gear. A swivel shaft is preferably provided, which connects the swivel gear with the carriage and a multi-plate gear assigned to the carriage for rotating the slats about their longitudinal axis. In particular that is Swivel gear can be moved in a mounting rail to move the carriage. Preferably, the swivel gear movable in the longitudinal direction of the mounting rail is fixed in the first end position and / or the second end position of the slats to prevent the slat carriage from moving in at least one direction of displacement with respect to its position with respect to the mounting rail and / or its displaceability is restricted.

Incorrect operation, snagging of the slats and / or damage to the vertical blind due to a movement of the slats along the mounting rail with slats or slat surfaces oriented essentially in the longitudinal direction to the mounting rail can thus be prevented.

Fig. 1

eine perspektivische Seitenansicht eines erfindungsgemäßen Schwenkgetriebes,

Fig. 2

eine erste perspektivische Draufsicht auf ein teilmontiertes Schwenkgetriebe,

Fig. 3

eine zweite perspektivische Draufsicht auf ein teilmontiertes Schwenkgetriebe mit einem Schieber in einer ersten Endlage,

Fig. 4

eine dritte perspektivische Draufsicht auf ein teilmontiertes Schwenkgetriebe mit einem Schieber in einer zweiten Endlage,

Fig. 5

eine weitere perspektivische Draufsicht auf ein erfindungsgemäßes Schwenkgetriebe in einem endmontierten Zustand,

Fig. 6

eine geschnittene perspektivische Seitendarstellung des erfindungsgemäßen Schwenkgetriebes gemäß Fig. 1 in einer Tragschiene einer Vertikaljalousie,

Fig. 7

eine geschnittene erste Seitenansicht des erfindungsgemäßen Schwenkgetriebes in der ersten Endlage,

Fig. 8

eine geschnittene zweite Seitenansicht des erfindungsgemäßen Schwenkgetriebes in der Freigabeposition,

Fig. 9

eine geschnittene dritte Seitenansicht des erfindungsgemäßen Schwenkgetriebes in der zweiten Endlage,

Fig. 10

eine geschnittene weitere Seitenansicht des erfindungsgemäßen Schwenkgetriebes in der ersten Endlage während eines Übersprungs,

Fig. 11a - 11d

vier verschiedene Darstellungen einer ersten Festsetzaufnahme zum Zusammenwirken mit einem erfindungsgemäßen Schwenkgetriebe,

Fig. 12a - 12d

vier verschiedene Darstellungen einer zweiten Festsetzaufnahme zum Zusammenwirken mit einem erfindungsgemäßen Schwenkgetriebe,

Fig. 13a - 13d

vier verschiedene Darstellungen einer dritten Festsetzaufnahme zum Zusammenwirken mit einem erfindungsgemäßen Schwenkgetriebe,

Fig. 14a - 14d

vier verschiedene Darstellungen einer weiteren Festsetzaufnahme zum Zusammenwirken mit einem erfindungsgemäßen Schwenkgetriebe.

The invention is explained in more detail below with reference to the figures. Show it:

Fig. 1

a perspective side view of a swivel gear according to the invention,

Fig. 2

2 shows a first perspective top view of a partially assembled swivel gear,

Fig. 3

2 shows a second perspective top view of a partially assembled swivel gear with a slide in a first end position,

Fig. 4

3 shows a third perspective top view of a partially assembled swivel gear with a slide in a second end position,

Fig. 5

5 shows a further perspective top view of a swivel gear according to the invention in a final assembled state,

Fig. 6

a sectional perspective side view of the swivel gear according to the invention Fig. 1 in a mounting rail of a vertical blind,

Fig. 7

2 shows a sectioned first side view of the swivel gear according to the invention in the first end position,

Fig. 8

2 shows a sectioned second side view of the swivel gear according to the invention in the release position,

Fig. 9

2 shows a sectioned third side view of the swivel gear according to the invention in the second end position,

Fig. 10

2 shows a sectional side view of the swivel gear according to the invention in the first end position during a skip,

Figures 11a-11d

four different representations of a first fixing receptacle for interaction with a swivel gear according to the invention,

Figures 12a-12d

four different representations of a second fixing receptacle for interaction with a swivel gear according to the invention,

Figures 13a-13d

four different representations of a third fixing receptacle for interaction with a swivel gear according to the invention,

14a-14d

four different representations of a further fixing receptacle for interaction with a swivel gear according to the invention.

Fig. 1 shows a perspective side view of a swivel gear 10 according to the invention. In the embodiment shown here, the swivel gear 10 is designed as a spinner rod gear. The swivel gear 10 has a supporting structure 11 with an upper side 12 and an underside 13 facing away from the upper side 12. In this exemplary embodiment, the supporting structure 11 is designed as a gear housing 11. Between the upper side 12 and the lower side 13 and transversely, here essentially at right angles, to the plane of the upper side 12 or the lower side 13, the transmission housing 11 has a first side 14, a second side 15 facing away from the first side 14 and a transverse, here essentially at right angles, to the planes of the sides 14, 15 arranged first end face 16 and a second end face 17 facing away from the first end face 16.

A sliding device 18 is assigned to the gear housing 11. In this exemplary embodiment, the sliding device 18 comprises a first roller 19, a second roller 20 and a third roller 21. The first roller 19 is assigned to the second side 15 and the second roller 20 and the third roller 21 are assigned to the first side 14. The rollers 19, 20, 21 are each rotatably supported about a roller axis 22. For a better clarity, only the roller axis 22 of the second roller 20 is provided with a reference number. Here, the roller axis 22 of the first roller 19 extends transversely, here at right angles, to the plane of the second side 15 Outside. The roller axes 22 of the second and third rollers 20, 21 extend transversely, here at right angles, to the plane of the first side 14 to the outside. By means of the sliding device 18 and the rollers 19, 20, 21, the swivel gear 10 can be displaced or moved within a mounting rail (not shown here) of a vertical blind.

A pivot pin 23 extends outward from the underside 13. The pivot pin 23 is rotatable about its longitudinal axis and is inclined to the plane of the underside in this embodiment. An eyelet 24 is provided in the area of the free end of the pivot pin 23. The eyelet 24 is used to fasten a crank rod or throwing rod, not shown here.

The end faces 16, 17 each have an opening, a swivel shaft channel 25 extending from the first end face 16 to the second end face 17. The swivel shaft channel 25 serves to receive a swivel shaft, not shown here. In the assembled state of a vertical blind, the swivel shaft penetrates both the swivel gear 10 and all the carriages, to which a slat is attached in each case. The swivel shaft passes through a gearwheel of a transmission in all carriages and the swivel gear 10. Here, the carriage and the swivel gear 10 are displaceable with respect to the axial direction of the swivel shaft, but in the direction of rotation of the swivel shaft about its longitudinal axis, the swivel shaft is non-rotatably coupled to the respective gear of the carriage and the swivel gear 10. In the swivel gear 10, the gear wheel is designed as a worm wheel 26 which has the swivel shaft channel 25 for receiving the swivel shaft.

In the area of the upper side 12, the swivel gear 10 in this exemplary embodiment has a fixing element 27 and a swivel cover 28. Furthermore, a separate fixing receptacle 29 is provided for the swivel gear 10 and the fixing element 27. In this exemplary embodiment, the fixing receptacle 29 is designed as a strand element 29. The fixing receptacle 29 interacts with the fixing element 27 for fixing the position of the swivel gear 10 or the gear housing 11. The fixing receptacle 29 is assigned to a mounting rail, not shown here. The structure and the mode of operation of the fixing element 27 and the swivel cover 28 are explained in more detail with reference to the following description of the figures.

Fig. 2 A first perspective top view of a partially assembled swivel gear 10 can be seen. Here the top 12 of the gear housing 11 is removed. A gear arrangement 30 within the gear housing 11 is shown in a partially assembled state.

The pivot pin 23 is inclined with its longitudinal axis with respect to the plane of the underside 13 and rotatably mounted in a pin receptacle 31. At the end facing away from the eyelet 24, the pivot pin 23 has a joint ball 32. A worm toothing 33 on the circumference of the pivot pin 23 engages in a toothing 34 on the outer circumference of the worm wheel 26 that corresponds to the worm toothing 33. The toothing 34 is assigned to a first end of the worm wheel 26. A spindle thread 35 is arranged in an area of the circumference of the worm wheel 26 which is adjacent to the first toothing 34 and faces a second end of the worm wheel 26.

Fig. 3 shows a second perspective top view of a partially assembled swivel gear 10 with a slide 36 in a first end position. The slide 36 has a thread which engages in the spindle thread 35 of the worm wheel 26. In this case, the slide 36 is arranged in a final assembled state, not shown here, on a side of the worm wheel 26 facing the upper side 12. The slider 36 has a link 37 in which the joint ball 32 of the pivot pin 23 is guided. The link 37 is aligned transversely to the longitudinal axis of the swivel shaft channel 25.

In a final assembled state, not shown here, the slide 36 has a first projection 38 and a second projection 39 on a side facing the top 12. The lugs 38, 39 are formed as elevations in this embodiment. The first lug 38 is arranged on an end of the slider 36 facing the first end surface 16, while the second lug 39 is arranged on an end of the slider 36 facing the second end surface 17.

In the first end position of the slide 36 shown here, the joint ball 32 is located at a first end of the link 37 and the eyelet 24 of the pivot pin 23 faces the second side 15. Furthermore, the slide 36 is displaced in the direction of the first end face 16. The first nose 38 is positioned adjacent to the first face 16, while the second nose 39 is spaced from the second face 17.

When the pivot pin 23 rotates, the slide 36 simultaneously executes a linear movement in the longitudinal direction of the pivot shaft channel 25. This also results in a linear displacement of the link 37, whereby the inclination of the pivot pin 23 can be changed. Depending on the direction of rotation of the pivot pin 23, the slide 36 moves in the direction of the first end face 16 or the second end face 17. Here, the slide 23 or the link 37 tilts the Swivel pin 23 such that the eyelet 23 faces the second side 15 in the first end position or the first side 14 in a second end position.

Fig. 4 is a third perspective top view of a partially assembled swivel gear 10 with the slide 36 in a second end position. In the second end position of the slide 36, the joint ball 32 is located on a second end of the link 37 facing away from the first end and the eyelet 24 of the pivot pin 23 faces the first side 14. Furthermore, the slide 36 is displaced in the direction of the second end face 17. The second nose 39 is positioned adjacent to the second face 17, while the first nose 38 is spaced from the first face 16.

Fig. 5 shows a further perspective top view of a swivel gear 10 according to the invention in a final assembled state. Compared to the partially assembled condition Fig. 4 is after Fig. 5 the top 12 at least largely closed by a cover 40.

The cover 40 has openings 41, 42. The openings 41, 42 are arranged in the region of the worm wheel 26. The opening 42 is the fixing element 27 and the opening 41 is assigned to the swivel cover 28. In this exemplary embodiment, the openings 41, 42 are each formed as a pair of two openings, the opening 41 being separated into two individual openings by means of a web 76 and the opening 42 using a web 77. The webs 76, 77 are oriented transversely, here at right angles to the longitudinal orientation of the swivel shaft channel 25. The fixing element 27 is pivotally mounted about the web 77. Likewise, the pivot cover 28 is pivotally mounted about the web 76. The fixing element 27 and the swivel cover 28 are each aligned essentially horizontally in a release position and with an essentially horizontal orientation of the cover 40. In the release position, the fixing element and the swivel cover 28 are arranged essentially in the plane of the upper side 12 and / or at least largely within the transmission housing 11. Furthermore, the fixing element 27 can be moved out of the transmission housing 11 and beyond the surface of the upper side 12 and / or the cover 40 due to the rotatable mounting around the web 77. The swivel cover 28 remains within the gear housing 11 even when it is pivoted about the web 76.

If the slide 36 is in the first end position, the nose 39 presses a first fixing side 78 of the fixing element 27 out of the opening 42 and beyond the surface of the upper side 12. In the second end position of the slide 36, the nose 39 presses a second fixing side 79 of the fixing element 27 out of the opening 42 and beyond the surface of the upper side 12. In an intermediate position of the slide 36 between the first end position and the second end position, the Nose 39 together with the fixing element 27 in such a way that the fixing element 27 is arranged at least largely within the gear housing 11 and essentially parallel to the upper side 12.

Fig. 6 is a sectional perspective side view of the swivel gear 10 according to the invention in a mounting rail 43 of a vertical blind. The support rail 43 is designed as a profile strand in which the swivel gear 10 is guided so as to be displaceable in the direction of its longitudinal axis. The mounting rail 43 has a channel 75 which extends in the longitudinal direction of the mounting rail 43 and over the entire length of the mounting rail 43. Here, profile webs 44 serve as a guide and support surface for the rollers 19, 20, 21 of the sliding device 18 of the swivel gear 10. The profile webs 44 extend on an inside of the channel 75 and in the longitudinal direction of the channel 75.

The toothing 34 makes up about half the length of the worm wheel 26, while the spindle thread 35 occupies the remaining approximately half the length of the worm wheel 26. The swivel shaft channel 25 of the worm wheel 26 has a web-like bead 45 on its inner surface, which extends in the longitudinal direction of the swivel shaft channel 25. A pivot shaft, not shown here, has a groove corresponding to the bead 45, so that the pivot shaft can be connected to the worm wheel 26 in a rotationally fixed manner.

The fixing receptacle 29 is inserted into a profile groove 46 and secured against displacement with respect to the mounting rail 43. The fixing receptacle 29 is thus fixedly connected to the mounting rail 43. The fixing receptacle 29 has a plurality of links 47 and the spacing of the links 47 defines a receiving area 48. Not all links 47 and receiving areas 48 are provided with a reference symbol here for better clarity.

As soon as the slide 36 is in the first end position or the second end position, the first fixing side 78 or the second fixing side 79 of the fixing element 27 is pressed out of the gear housing 11 and into a receiving area 48. As a result, displacement of the swivel gear 10 in the longitudinal direction of the mounting rail 43 can be prevented at least to such an extent that pushing together and / or pulling apart of carriages, not shown here, which are arranged displaceably in the channel 75, is prevented.

Fig. 7 shows a sectional first side view of the swivel gear 10 according to the invention in the first end position. In this respect, the description also applies Fig. 3 directed. In the first end position, the nose 39 of the slide 36 is located below the outer end of the second fixing side 79 of the fixing element 27. The two outer ends of the first fixing side 78 and, which face away from one another the second fixing side 79 have a greater material thickness than the area of the fixing element 27 between the two outer ends. As a result and due to the position of the nose 39 below the thickening of the second fixing side 79, the fixing element 27 is pivoted out of the plane of the upper side 12 due to its rotatable mounting about the web 77. As a result, the second fixing side 79 projects into a receiving area 48 of the fixing receiver 29.

The first fixing side 78 has at its outer end on a side facing the fixing receptacle 29 a projection 80 which is pivoted away from the fixing receptacle 29 in the first end position and into the swivel gear 10. The second fixing side 79 has at its outer end on a side facing the fixing receptacle 29 a protrusion-like elevation 81 which in the first end position is pivoted into a receiving area 48 and out of the top 12.

The receiving areas 48 are delimited in the longitudinal direction of the fixing receptacle 29 by projections 54. Due to the elevation 81 projecting into the receiving area 48, the travel of the swivel gear 10 in the longitudinal direction of the fixing receptacle 29 is limited. In this exemplary embodiment, the elevations 80, 81 each have an oblique flank on one side. In addition, in this example a strand 49 of the fixing receptacle 29 is designed to be flexible, elastic and / or resilient. As a result, in a first direction of displacement of the swivel gear 10 in the longitudinal direction of the fixing receptacle 29, there is the possibility that the respective elevation 80, 81 presses the strand 49 away from the swivel gear 10 due to the oblique flank when it hits a projection 54 with sufficient tractive force. This makes it possible to jump over the initially blocking projection 54 when moving in the first direction of movement.

In contrast, when the swivel gear 10 moves in a second shift direction facing away from the first displacement direction, the elevations 81 act as a pure blocking element, so that a displacement of the swivel gear 10 over the receiving area 48, in which the elevation 81 engages, is blocked.

Fig. 8 is a sectional second side view of the swivel gear 10 according to the invention in the release position. In the release position, the slide 38 is between the first end position and the second end position. In the release position, the nose 39 is not located below the thickened outer end of the first locking side 78 or the second locking side 79. Instead, the nose 39 rests against a central region of the locking element 27 such that the locking element 27 is essentially parallel to the top 12 is aligned. Here, the elevations 80, 81 are arranged such that the swivel gear 10 can be freely moved along the fixing receptacle 29 in the first and second displacement directions, the elevations 80, 81 not coming into contact with the projections 54.

Fig. 9 is a cut third side view of the swivel gear 10 according to the invention in the second end position. In this respect, the description also applies Fig. 4 directed. In the second end position, the nose 39 of the slider 36 is located below the outer end of the first locking side 78 of the locking element 27. Because of the position of the nose 39 below the thickening of the first locking side 78, the locking element 27 is out due to its rotatable mounting around the web 77 the plane of the top 12 pivoted. Here, the first fixing side 78 projects into a receiving area 48 of the fixing receiver 29.

The projection 80 of the first fixing side 78 is pivoted into a receiving area 48 in the second end position and out of the top 12. The projection 81 of the second fixing side 79 is pivoted away from the fixing receptacle 29 in the second end position and into the swivel gear 10.

Due to the elevation 80 projecting into the receiving area 48, the travel path of the swivel gear 10 in the longitudinal direction of the fixing receptacle 29 is limited. Because of the inclined flank on the elevation 80, in a first direction of displacement of the swivel gear 10 in the longitudinal direction of the fixing receptacle 29, there is the possibility that the respective elevation 80 will pull the strand 49 from the swivel gear 10 due to the oblique flank when it hits a projection 54 with sufficient tractive force pushes away. This makes it possible to jump over the initially blocking projection 54 when the swivel gear 10 is moved in the first direction of displacement.

In contrast, when the swivel gear 10 moves in a second shift direction facing away from the first displacement direction, the elevation 80 acts as a pure blocking element, so that a displacement of the swivel gear 10 over the receiving area 48, into which the elevation 80 engages, is blocked.

Fig. 10 shows a sectional side view of the swivel gear 10 according to the invention in the first end position during a skip. Structure and location largely correspond to the illustration Fig. 7 , In this regard, reference is also made to the preceding description.

If the slide 36 is in the first end position and there is a further rotation of the pivot pin 23 in the direction of this first end position, the spindle thread 35 rotates further about its longitudinal axis with a sufficient force. In order to avoid damage to the swivel gear 10, the slide 36 is in this case pressed out of the spindle thread 35 by the spindle thread 35 and due to the fact that the slide 36 bears against the inside of the end face 16 and in the direction of the upper side 12. Here, the nose 38 strikes an inside of a first end 82 of the swivel cover 28, as a result of which the swivel cover 28 is pivoted about the web 76. As a result, the first end 82 is pressed a little in the direction of the upper side 12 and / or the fixing receptacle 29, the first end 82 not projecting beyond the upper side 12 in this exemplary embodiment. At the same time, a second end 83 facing away from the first end 82 is pivoted a bit around the web 76 and into the swivel gear 10.

With a further rotation of the pivot pin 23 and the spindle thread 35, the thread of the slide 36 engages again in the spindle thread 35, as a result of which an increase in the spindle thread 35 is skipped. The swivel cover 28 is swiveled back into its starting position at the same time.

Is the slider 36 in the according Fig. 9 illustrated second end position and there is a further rotation of the pivot pin 23 in the direction of the second end position, the spindle thread 35 rotates further about its longitudinal axis with a sufficient force. In order to avoid damage to the swivel gear 10, the slide 36 is in this case pressed out of the spindle thread 35 by the spindle thread 35 and due to the contact of the slide 36 on the inside of the end face 17 and in the direction of the upper side 12. Here, the nose 38 strikes an inside of a second end 83 of the swivel cover 28, as a result of which the swivel cover 28 is pivoted about the web 76. As a result, the second end 83 is pressed a little in the direction of the upper side 12 and / or the fixing receptacle 29, the second end 83 not projecting beyond the upper side 12 in this exemplary embodiment. At the same time, the first end 82 facing away from the second end 83 is pivoted a bit around the web 76 and into the swivel gear 10.

With a further rotation of the pivot pin 23 and the spindle thread 35, the thread of the slide 36 engages again in the spindle thread 35, as a result of which an increase in the spindle thread 35 is skipped. The swivel cover 28 is swiveled back into its starting position at the same time.

Preferably, a slope of the spindle thread 35 is skipped by the slide 36 if, for example, after the initial assembly of the slide 36 and one or more slats has not yet reached their intended end position, in particular for creating a closed curtain. In this situation, the swivel shaft connected to the swivel gear 10 and the carriage of the slats is not blocked by the end position of all the slats. Due to the fact that the slide 36 jumps over one or more pitches of the spindle thread 35, the swivel shaft can be rotated further in the direction of the end position already reached, as a result of which also the slats not yet in the intended end position can be transferred to the end position, so that finally all carriages and / or slats are transferred to the intended end position. In this position, further skipping of the spindle thread 35 is prevented due to an excessive torque for further rotation of the pivot shaft.

Fig. 11a shows a first perspective view of a first fixing receptacle 29 for cooperation with a swivel gear 10 according to the invention. The fixing receptacle 29, which is designed as a strand element in this exemplary embodiment, has a strand 49, which is flexible in this exemplary embodiment. Alternatively, the strand 49 can be designed as a rigid rod. Here the strand 49 has a round cross section. At regular intervals, a plurality of links 47 are fixed in place on the strand 49 or attached to the strand 49.

The links 49 each have a functional side 50 and a clamping side 51 facing away from the functional side 50. Between the functional side 50 and the clamping side 51, the links 49 each have two guide sides 52, 53 that face away from one another and are oriented transversely to the plane of the functional side 50 and the clamping side 51 ,

The functional side 50 of each link 47 has a projection 54. The distance between two immediately adjacent projections 54 from two links 47 determines the width of a receiving area 48 in each case. In this exemplary embodiment, the projection 54 is arranged centrally in the area of the functional side 50. Here, the projection 54 is designed as a web, which extends with respect to its longitudinal orientation on the functional side 50 from the first guide side 52 to the second guide side 53 facing away from the first guide side 52.

Fig. 11b A second perspective view of the first fixing receptacle 29 can be seen. The clamping side 51 of each link 47 has a clamping web 55 which extends with respect to its longitudinal orientation in the longitudinal direction of the fixing receptacle 29 or the longitudinal strand 49. In this exemplary embodiment, the clamping web 55 has a first ramp 56, a platform 57 and a second ramp 58. The platform 57 is arranged in the center on the clamping side 51 and the first ramp 57 and the second ramp 58 each point outwards from the ramp 57 inclination in the direction of the longitudinal axis of the fixing receptacle 29 or the strand 49. The ramps 57, 58 facilitate the insertion of the links 47 of the fixing receptacle 29 into the profile groove 46 during assembly. Because of the two Ramps 57, 58 which face away from one another and are mirror-symmetrical result in this ease of assembly both in a first assembly direction in which the first ramp 57 for each link 47 is inserted into the mounting rail 43 or the profile groove 46 in front of the second ramp 58 of the same link 47 , as well as in a second assembly direction rotated by 180 ° with respect to the first assembly direction, in which for each link 47 the second ramp 58 is introduced into the mounting rail 43 or the profile groove 46 before the first ramp 57 of the same link 47 in each case.

In the case of a flexible strand 49, the ramps 57, 58 allow the links 47 to be tilted when a fixing element 27 and / or an elevation 80, 81, in particular with an inclined flank, strikes a projection 54 with sufficient force. This enables the projection 54 to be jumped over, as a result of which damage can be avoided, for example.

In accordance with Fig. 6 In the assembled state shown, the guide sides 52, 53 serve to guide the fixing receptacle 29 in the profile groove 46. In this case, the outer surfaces of the guide sides 52, 53 lie against an inner surface of two mutually opposite inner sides of the profile groove 46.

The width of the functional side 50 is less than the width of the link 47, which results from the distance between the two functional sides 52, 53 facing away from one another. This results in a recess or an offset 62 in the transition area between the functional side 50 and the guide side 52 or the guide side 53 Fig. 6 in the assembled state, one leg of the profile groove 46 engages in the offset 62. Here, the free ends of the two legs of the profile groove 46 face each other. Due to the interaction of the guide sides 52, 53 and the clamping web 55 with the profile groove 46, the fixing receptacle 29 is held clamped in the profile groove 46 in the exemplary embodiment shown here. In addition or as an alternative, end caps for the mounting rail 43 (not shown here in more detail) can prevent the fixing receptacle 29 from being displaced.

Fig. 11c shows a side view of the first fixing receptacle 29. Each projection 54 has a first stop surface 59 and a second stop surface 60 facing away from the first stop surface 59. The stop surfaces 59, 60 are transverse, in this exemplary embodiment rectangular, to the longitudinal orientation of the fixing holder 29 or the strand 49 aligned. A first stop surface 59 of a first link 47 and a second stop surface 60 of a second link 47 directly adjacent to the first link 47 limit or define the width of the receiving area 48.

In the first end position or the second end position of the slide 36, the stop surfaces 59, 60 serve as a counter stop for the fixing element 27 or the Elevation 80, 81. Thus, a travel path of the swivel gear 10 in the first end position or the second end position of the slide 36 is limited by means of the projections 54 or the stop surfaces 59, 60.

It can also be seen that the first ramp 56, the platform 57 and the second ramp 58 each have a width of approximately 1/3 of the width of a link 47 in the longitudinal direction of the fixing receptacle 29 or the strand 49.

Fig. 11d a front view of the first fixing receptacle 29 can be seen. In this embodiment, the links 47 have a through hole 61. The strand 49 is pushed through the through holes 61 of the links 47, the links 47 being fixed in position on the strand 49. In this embodiment, the links 47 are sprayed onto the strand 49, in particular by means of a plastic processing spraying process. Here, the strand 49 is designed, for example, as a cord. Alternatively or additionally, an adhesive, frictional and / or clamping connection between the links 47 and the strand 49 is conceivable. Furthermore, the strand 49 can be formed in one piece with the links 47.

Fig. 12a shows a first perspective view of a second fixing receptacle 63 for cooperation with a swivel gear 10 according to the invention. The same features as before have the same reference numerals. In this regard, reference is also made to the preceding description. In this exemplary embodiment, the fixing receptacle 63 is designed as a strand element. The functional side 50 of each link 47 has a projection 54. The distance between two immediately adjacent projections 54 from two links 47 determines the width of each receiving area 48. In this exemplary embodiment, a free end 64 of the functional side 50 projects in the longitudinal direction of the fixing receptacle 63 or the Stranges 49 beyond the width of the functional pages 52, 53. In this example, the projection 54 is arranged at the free end 64 of the functional side 50. The projection 54 is designed as a web which extends transversely, here at right angles to the longitudinal orientation of the fixing element 63 or the strand 49.

Fig. 12b A second perspective view of the second fixing receptacle 63 can be seen. The same features as before have the same reference numerals. In this regard, reference is also made to the preceding description. The clamping side 51 of each link 47 has a clamping web 55 which extends with respect to its longitudinal orientation in the longitudinal direction of the fixing receptacle 29 or the longitudinal strand 49. In this exemplary embodiment, the clamping web 55 has a ramp 65 and a platform 66. The platform 66 extends from an end of the link 47 facing away from the free end 64 in the direction of the end facing the free end 64 and is arranged centrally on the clamping side 51. The ramp 65 has one of the platform 66 to the outside in the direction of the longitudinal axis of the fixing receptacle 20 or the strand 49 and in the direction of the free end 64. The ramp 65 facilitates the insertion of the links 47 of the fixing receptacle 63 into the profile groove 46 during assembly. This assembly is facilitated in this exemplary embodiment only in a first assembly direction in which the ramp 65 in front of the platform 66 of the same link for each link 47 47 is inserted into the mounting rail 43 or the profile groove 46.

In the case of a flexible strand 49, the ramp 65 enables the links 47 to be tilted when a fixing element 27 and / or an elevation 80, 81, in particular with an inclined flank, strikes a projection 54 with sufficient force. This enables the projection 54 to be jumped over, as a result of which damage can be avoided, for example.

Fig. 12c shows a side view of the second fixing receptacle 63. The same features as before have the same reference numerals. In this regard, reference is also made to the preceding description. It can be seen that the ramp 65 is approximately 1/5 and the platform 57 is approximately 4/5 the width of a link 47 in the longitudinal direction of the fixing receptacle 29 or the strand 49.

Fig. 12d a front view of the second fixing receptacle 63 can be seen. The same features as before have the same reference numerals. In this regard, reference is also made to the preceding description. As in Fig. 11d the two offsets 62 facing away from one another are clearly visible.

13a shows a first perspective view of a third fixing receptacle 67 for cooperation with a swivel gear 10 according to the invention. The same features as before have the same reference numerals. In this regard, reference is also made to the preceding description. In this exemplary embodiment, the fixing receptacle 67 is designed as a strand element. The functional side 50 of each link 47 has a projection 54. The distance between two immediately adjacent projections 54 from two links 47 determines the width of a receiving area 48 in each case. In this exemplary embodiment, the projection 54 is located at one end of the functional side 50 in the longitudinal direction of the fixing receiver 67 or the strand 49 is arranged. The projection 54 is designed as a web which extends transversely, here at right angles to the longitudinal orientation of the fixing element 63 or the strand 49.

Fig. 13b A second perspective illustration of the third fixing receptacle 67 can be seen. The same features as before have the same reference numerals. In this regard, reference is also made to the preceding description. The clamping side 51 of each link 47 has a clamping web 55, which is in terms of its Longitudinal orientation in the longitudinal direction of the fixing receptacle 29 or the longitudinal strand 49 extends. In this exemplary embodiment, the clamping web 55 has a ramp 68 and a pedestal 69. The pedestal 69 is arranged on an end of the link 47 or the clamping side 51 facing away from the projection 54 and in the center on the clamping side 51. The ramp 68 has an incline that slopes outwards from the platform 69 in the direction of the longitudinal axis of the fixing receptacle 20 or the strand 49. The ramp 68 facilitates the insertion of the links 47 of the fixing receptacle 63 into the profile groove 46 during assembly. This assembly is facilitated in this exemplary embodiment only in a first assembly direction, in which for each link 47 the ramp 68 in front of the platform 69 of the same link 47 is inserted into the mounting rail 43 or the profile groove 46.

In the case of a flexible strand 49, the ramp 68 enables the links 47 to be tilted when a fixing element 27 and / or an elevation 80, 81, in particular with an inclined flank, strikes a projection 54 with sufficient force. This enables the projection 54 to be jumped over, as a result of which damage can be avoided, for example.

13c shows a side view of the third fixing receptacle 67. The same features as before have the same reference numerals. In this regard, reference is also made to the preceding description. It can be seen that the ramp 68 is approximately 4/5 and the platform 69 is approximately 1/5 the width of a link 47 in the longitudinal direction of the fixing receptacle 29 or the strand 49.

Fig. 13d a front view of the third fixing receptacle 67 can be seen. The same features as before have the same reference numerals. In this regard, reference is also made to the preceding description.

14a shows a first perspective view of a further fixing receptacle 70 for cooperation with a swivel gear 10 according to the invention. The same features as before have the same reference numerals. In this regard, reference is also made to the preceding description. In this exemplary embodiment, the fixing receptacle 70 is designed as a strand element. The functional side 50 of each link 47 has three projections 71, 72, 73. The distance between the projection 71 and the immediately adjacent projection 72 of the same link 47 and the distance between the projection 72 and the immediately adjacent projection 73 of the same link are identical and corresponds to the distance between two mutually facing projections 71, 73 from two immediately adjacent links 47. These distances each determine the width of a receiving area 48. In this exemplary embodiment, the projections 71, 72, 73 are designed as tooth-like webs which extend transversely, here at right angles to Extend the longitudinal alignment of the fixing element 63 or the strand 49.

14b A second perspective illustration of the further fixing receptacle 70 can be seen. The same features as before have the same reference numerals. In this regard, reference is also made to the preceding description. The clamping side 51 of each link 47 has a clamping web 55 which extends with respect to its longitudinal orientation in the longitudinal direction of the fixing receptacle 29 or the longitudinal strand 49. In this exemplary embodiment, the clamping web 55 is designed as a platform 74. The platform 69 is arranged in the middle on the clamping side 51.

14c shows a side view of the further fixing receptacle 70. The same features as before have the same reference numerals. In this regard, reference is also made to the preceding description. Each tooth-like projection 71, 72, 73 each has a stop surface 59 and a stop surface 60.

Fig. 14d a front view of the further fixing receptacle 70 can be seen. The same features as before have the same reference numerals. In this regard, reference is also made to the preceding description.

The mode of operation of the invention is described below with reference to FIG 1 to 14d explained in more detail:
A plurality of carriages and a swivel gear 10 are arranged in a horizontally oriented mounting rail 43 of a vertical blind and in the region of a carriage designed as an end carriage. The end car is connected to the gearing 10. A lamella is arranged on each of the carriages and extends vertically downward from the carriage. A crank rod is arranged on the eyelet 24 of the pivot pin 23, with which the vertical blind can be operated. In the first end position and in the second end position of the pivot pin 23, the slats are positioned such that the curtain formed by the slats is closed or the slats and their slat surface are aligned essentially in the longitudinal direction to the support rail 43. Furthermore, the eyelet 24 or the crank rod is in the first end position and in the second end position in each case laterally outside the closed curtain plane, as a result of which the crank rod is easily accessible and an annoying light gap in the region of the crank rod and the edge region of the vertical blind is avoided.

By extending the fixing element 27 in one of the two end positions of the pivot pin 23 or the slide 36, the fixing element 27 or elevations 80, 81 enter a receiving area 48 of the fixing receptacle 29, 63, 67, 70 to move the crank rod in the longitudinal direction of the support rail 43, the fixing element 27 or an elevation 80, 81 strikes the stop surface 59 or 60 of a projection 54, 71, 72, 73, whereby a displacement movement in the first end position and the second end position is prevented. It may be possible for the projections 54 to jump over in a first direction of displacement of the pivoting gear 10, in particular for closing the curtain and / or for opening the building. A displacement of the swivel gear 10 in the second displacement direction to open the curtain and / or the building opening in the first and second end positions is prevented.

This significantly reduces the risk of incorrect operation and / or damage to the vertical blind. Only in an intermediate position or release position between the two end positions, in which the fixing element 27 or an elevation 80, 81 does not protrude into the receiving area 48, is it possible to move the swivel gear 10 freely along the mounting rail 43. In such an intermediate position, however, the slats are rotated due to the coupling via the pivot shaft from the closed curtain plane and transversely to the longitudinal direction of the mounting rail 43. This largely prevents, for example, jamming of the slats of the vertical blind when the pivoting gear 10 is displaced and the carriages are pushed together or pulled apart along the mounting rail 43 to open or close the vertical blind. <B><u> REFERENCE LIST: </ u></b> 10 swing Drive 49 strand 11 supporting structure 50 function page 12 top 51 terminal side 13 bottom 52 guide side 14 page 53 guide side 15 page 54 head Start 16 end face 55 clamping web 17 end face 56 ramp 18 shifter 57 podium 19 role 58 ramp 20 role 59 stop surface 21 role 60 stop surface 22 roller axis 61 Through Hole 23 pivot pin 62 offset 24 eyelet 63 Immobilizing recording 25 Pivot shaft channel 64 free end 26 worm 65 ramp 27 Locking element 66 podium 28 hinged cover 67 Immobilizing recording 29 Immobilizing recording 68 ramp 30 transmission assembly 69 podium 31 pin receiver 70 Immobilizing recording 32 joint ball 71 head Start 33 worm gear 72 head Start 34 gearing 73 head Start 35 spindle thread 74 podium 36 pusher 75 channel 37 scenery 76 web 38 nose 77 web 39 nose 78 first fixing page 40 cover 79 second fixing page 41 opening 80 survey 42 opening 81 survey 43 rail 82 first end 44 profile web 83 Second end 45 bead 46 profile groove 47 element 48 reception area

Claims (9)

1. Swivel gear for a vertical blind for pivoting slats from a first end position into a second end position deviating from the first end position and/or from the second end position into the first end position, said swivel gear being displaceable for closing and/or opening the vertical blind along a support rail (43), with a swivel pin (23) for fastening a crank rod, wherein the swivel pin (23) is rotatable about its longitudinal axis and coupled to a slider (36), which is displaceable from a first end position into a second end position deviating from the first end position and/or from the second end position into the first end position, characterized in that at least one fixing element (27) for providing a displacement limitation for the swivel gear (10) with respect to the support rail (43) in the first end position and/or the second end position is provided, wherein in the first end position, the fixing position of the fixing element (27) in the first end position of the slats can be realized by means of the slider (36), and/or in the second end position, the fixing position of the fixing element (27) in the second end position of the slats can be realized by means of the slider (36).
2. Swivel gear according to claim 1, characterized in that the fixing element (27) assumes a fixing position in the first end position and/or the second end position of the slats and cooperates with the support rail (43), in particular by means of a force-fitting, frictional and/or positive-locking connection, wherein the fixing element (27) is preferably movable from a release position into the fixing position or from the fixing position into the release position by means of an actuation of the swivel gear (10).
3. Swivel gear according to claim 2, characterized in that the fixing element (27) projects in the fixing position out of a supporting structure (11), in particular in the direction toward the support rail (43), and/or that the fixing element (27) is arranged in the release position at least largely within the supporting structure (11), wherein the fixing element (27) is preferably designed as a stop, in particular a stop arranged pivotably in the supporting structure (11).
4. Swivel gear according to any of claims 2 or 3, characterized in that the fixing element (27) cooperates in the fixing position with a fixing receptacle (29, 63, 67, 70), in particular a latching device, assigned to the support rail (43), for at least partially receiving the fixing element (27), wherein the fixing receptacle (29, 63, 67, 70) preferably extends along the longitudinal alignment of the support rail (43), in particular along a displacement path for the supporting structure (11).
5. Swivel gear according to claim 4, characterized in that the fixing receptacle (29, 63, 67, 70) has several receiving regions (48), in particular arranged next to one another in the longitudinal direction of the support rail (43), for receiving the fixing element (27), wherein the receiving regions (48) are preferably limited in the longitudinal direction of the support rail (43) by means of projections (54, 71, 72, 73) and/or the projections (54, 71, 72, 73) have at least one stop surface (59, 60) which is provided in the fixing position for cooperation with the fixing element (27).
6. Swivel gear according to any of claims 4 or 5, characterized in that the fixing receptacle (29, 63, 67, 70) is designed as an integral component of the support rail (43) or as a separate strand element, in particular a member strand, which can be connected to the support rail (43) in a position-fixed manner, wherein the strand element (29, 63, 67, 70) preferably has a strand (49), in particular a flexible strand (49), to which several members (47) are fastened.
7. Swivel gear according to any of the preceding claims, characterized in that the slider (36) has at least one projection-like lug (38, 39), wherein the lug (38, 39) preferably presses the fixing element (27) into the fixing position in the first end position and/or second end position of the slider (36).
8. Swivel gear according to claim 7, characterized in that the slider (36) has a first lug (38) and a second lug (39) facing away from the first lug (38), wherein the first lug (38) is preferably provided for cooperation with a swivel cover (28) and the second lug (39) is preferably provided for cooperation with the fixing element (28), in particular in the first end position and/or the second end position of the slider (36).
9. Vertical blind with a swivel gear (10) according to any of the preceding claims, wherein one slat of several slats is respectively fastened on a carriage and the slats are pivotable about their longitudinal axis by means of the swivel gear (10) from the first end position with a closed hanging into the second end position with a closed hanging and/or from the second end position into the first end position, and the swivel gear (10) is displaceable in a support rail (43) for moving the carriages, characterized in that the swivel gear (10) is fixed with regard to its position relative to the support rail (43) and limited in its displace-ability in the first end position and/or the second end position of the slats in order to prevent the slat carriages from moving in at least one displacement direction.

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