EP3854960A1 - Drainage channel for façade and / or terrace surfaces and gutter system - Google Patents

Abstract

The present invention relates to a drainage channel (10) for facade and / or terrace surfaces with at least two channel elements (11) which are elongated and engage in one another in the longitudinal direction, so that the channel elements (11) have a common receiving space (12) for receiving a Limiting the liquid circumferentially, the two channel elements (11) for adjusting the length of the drainage channel (10) being relatively displaceable in the longitudinal direction, the first channel element (11 ') being arranged in a form-fitting manner in the second channel element (11 "), the first channel element (11 ') and / or the second channel element (11 ") have at least one form-locking means (13) into which the other, in particular the first or second, channel element (11', 11") engages. The invention also relates to a channel system.

Description

The invention relates to a drainage channel for facade and / or terrace surfaces and a channel system.

For the drainage of terraces, facade areas or flat roofs, drainage channels are used, which are built into a soil to be drained as drainage. Surface water flows into the drainage channels from above via cover gratings. Such drainage channels can often be referred to as facade channels.

Façade channels can often be built into a floor made of waterproof concrete or liquid-sealed screed and are used, for example, to drain door sills or window elements on terraces. During assembly, the facade channels must be adapted to the respective width of the window or door elements in order to drain off the surface water as completely as possible.

From the DE 41 24 369 A1 a channel section of a drainage channel is known, which consists of two channel end parts and an intermediate middle part is formed. The central part has depressions at the longitudinal ends into which the two channel end parts are locked, for example with knobs or strips. The length of the channel section can be adjusted via the releasable form-fit connection at the two ends of the middle part.

The gutter section according to DE 41 24 369 A1 has the disadvantage that a change in length is only possible for a small length range. Furthermore, due to the three-part design, the channel section is difficult to handle during assembly.

The invention is based on the object of specifying a drainage channel which, thanks to an improved structural design, can be installed quickly and easily and is inexpensive to manufacture. The invention is also based on the object of specifying a gutter system.

According to the invention, this object is achieved with regard to the drainage channel by the subject matter of claim 1. With regard to the channel system, the above-mentioned object is achieved by the subject matter of claim 11.

Specifically, the object is achieved by a drainage channel for facade and / or terrace surfaces with at least two channel elements that are elongated and engage in one another in the longitudinal direction, so that the channel elements circumferentially delimit a common receiving space for receiving a liquid to be drained. The two channel elements can be moved relatively in the longitudinal direction for variable length adjustment of the drainage channel. The first channel element is arranged in a form-fitting manner in the second channel element. The first channel element and / or the second channel element have at least one form-locking means into which the other, in particular the first or second, channel element engages.

The channel elements extend along a common longitudinal axis which runs in the longitudinal direction. The receiving space is delimited by an end wall, two side walls and a bottom of the two channel elements. The drainage channel is for the entry of the liquids to be discharged in the opposite direction to the bottom of the channel elements, in particular after above, openly designed. The drainage channel can accommodate a fluid-permeable cover device.

The two channel elements engage in one another in the longitudinal direction and are relatively displaceable in the longitudinal direction. In other words, the channel elements are positively connected to one another in such a way that the channel elements can be variably displaced in both longitudinal directions. The channel elements can be moved steplessly. The channel elements can preferably be displaced relative to one another without tools. It is advantageous here that the length of the drainage channel can be adapted as desired to a corresponding installation situation, for example to the width of a window or door element. As a result, the resulting liquid, in particular the resulting surface water, can be drained away in an improved manner. The drainage channel according to the invention can thus be used for a large number of different widths of window and door elements.

Specifically, the first channel element is arranged in a form-fitting manner in the second channel element. In other words, the first channel element is arranged on the inside in the second channel element. The first channel element can bear with an outer contour on an inner contour of the second channel element. In other words, the second channel element with the inner contour is arranged on the outside of the outer contour of the first channel element. The two channel elements can be in direct or indirect form-fitting contact.

The outer contour of the first channel element and the inner contour of the second channel element can be designed to be complementary. The outer contour of the first channel element preferably rests flat against the inner contour of the second channel element. Due to the positive arrangement of the first channel element in the second channel element, the channel elements are easily aligned with one another and displaceable in the longitudinal direction. As a result, the effort involved in positioning the channel elements is reduced and assembly is facilitated.

In a first variant of the drainage channel according to the invention, the first channel element has the at least one form-locking means into which the second channel element engages displaceably. In other words, extends the second channel element into the form-locking means of the first channel element, so that the second channel element is positively connected to the form-locking means of the first channel element and can be displaced in the longitudinal direction. The second channel element can protrude into the form-locking means of the first channel element for a form-locking connection. The second channel element engages in the form-locking means of the first channel element on the outside. The interlocking means can be formed on the first channel element, in particular transversely to the longitudinal direction of the drainage channel, outwards. In other words, the interlocking means on the channel element can extend away from the receiving space in the transverse direction of the drainage channel.

In a second, alternative variant of the drainage channel according to the invention, the second channel element has the at least one form-locking means into which the first channel element engages displaceably. In other words, the first channel element extends into the form-locking means of the second channel element, so that the first channel element is positively connected to the form-locking means of the second channel element and can be displaced in the longitudinal direction. The first channel element can protrude into the form-fitting means of the second channel element for a form-fitting connection. The first channel element engages in the form-locking means of the second channel element on the inside. The form-locking means can be formed inward on the second channel element, in particular transversely to the longitudinal direction of the drainage channel. In other words, the interlocking means can be arranged at least partially in the receiving space. The interlocking means can extend into the receiving space.

In a third, alternative variant of the drainage channel according to the invention, the first channel element and the second channel element each have a form-fit means. The first channel element can engage in the form-locking means of the second channel element and the second channel element can engage in the form-locking means of the first channel element. In other words, the first channel element can extend into the form-locking means of the second channel element, so that the first channel element is positively connected to the form-locking means of the second channel element and can be displaced in the longitudinal direction. In addition, the second channel element can extend into the form-locking means of the first channel element, so that the second channel element is positively connected to the form-locking means of the first channel element and can be displaced in the longitudinal direction.

The interlocking means can be formed on the channel elements in each case, in particular transversely to the longitudinal direction of the drainage channel, inwards or outwards. In other words, the interlocking means can at least partially extend into the receiving space or extend away from the receiving space.

The interlocking means can be formed by at least one extension or a groove. The interlocking means can extend in the longitudinal direction of the drainage channel.

The form-locking means of the first or second channel element has the advantage that the overall stability of the drainage channel is increased by the engagement of the first or second channel element. The second channel element forms a form-locking connection with the form-locking means on the outside of the first channel element, so that the drainage channel is stiffened in the area of the form-locking connection.

Furthermore, the form-fit means serves to improve the guidance of the channel elements in the longitudinal direction when adjusting or changing the length of the drainage channel. In other words, the channel elements are guided through the form-fit means of the first channel element when they are relatively displaced in the longitudinal direction. As a result, the length adjustment of the drainage channel is further simplified, which reduces the outlay on assembly.

The invention has the further advantage that, due to the two-part design, a number of parts compared to the drainage channel according to FIG DE 41 24 369 A1 is reduced and thus costs are saved. Furthermore, the drainage channel according to the invention has a structurally simple structure, so that it can be manufactured inexpensively.

Preferred embodiments of the invention are specified in the subclaims.

In a preferred embodiment, exactly two channel elements are provided which engage in one another so as to be displaceable in the longitudinal direction for adjusting the length of the drainage channel. This has the advantage that the drainage channel has a small number of parts, which reduces costs. Furthermore, the two-part design simplifies handling when assembling the drainage channel or when adjusting the length of the drainage channel.

In a further preferred embodiment, the first channel element has a first side wall with an upper edge on which the interlocking means is designed to extend in the longitudinal direction. The first side wall extends in the longitudinal direction of the first channel element. The first side wall can be configured to be essentially orthogonal to the bottom of the first channel element. It is also possible for the first side wall, starting from the bottom of the first channel element, to be inclined outward, in particular in a direction extending transversely away from the longitudinal axis. In the installed position, the upper edge of the first channel element is preferably arranged essentially flush with a surface to be drained. The first channel element preferably has two first side walls which are arranged opposite one another and extend in the longitudinal direction. The interlocking means can be formed completely or in sections along the upper edge. It is advantageous here that the form-locking means guides the second channel element in a stable and pre-aligned manner when the length is adjusted. Furthermore, the drainage channel has a compact and stable design.

Particularly preferably, the first side wall and the form-fitting means delimit a free space lying therebetween, into which the second channel element engages with a second side wall in a displaceable manner in the longitudinal direction. The free space preferably extends in the longitudinal direction between the first side wall and the interlocking means. The free space can be designed in such a way that the form-fitting means delimits the second side wall on three sides. The second side wall of the second channel element preferably has an upper edge, which forms a free end with which the second channel element engages in the free space.

The second side wall of the second channel element can engage in the free space in such a way that the second side wall is delimited on both sides and in the region of the upper edge by the form-fitting means. The free space essentially serves to accommodate the second side wall of the second channel element. When adjusting the length or changing the length of the drainage channel, the second side wall of the second channel element is moved in the longitudinal direction in the free space. As a result, the second channel element is guided on the first channel element in a controlled manner, the two channel elements advantageously being aligned with one another in the transverse direction. The length of the drainage channel can be adjusted quickly and easily, so that assembly is easier.

The form-fit means is preferably designed such that a width of the free space between an inner surface of the form-fit means and an outer surface of the first side wall essentially corresponds to a wall thickness of the second side wall of the second channel element. In other words, the cross-sectional width of the free space essentially corresponds to the wall thickness of the second side wall. As a result, the second side wall of the second channel element is safely guided and laterally stabilized. This further facilitates the length adjustment of the drainage channel.

In order to achieve displaceability of the second channel element, the free space can be designed in such a way that play is provided between the second side wall and the outer surface of the first side wall and / or the inner surface of the form-fitting means.

In the context of the invention, the width of the free space is to be understood as the minimum distance between the inner surface of the form-fitting means and the outer surface of the first side wall orthogonal to the longitudinal axis or at right angles to the longitudinal axis of the first channel element.

More preferably, the form-fitting means is designed such that the free space is open in the opposite direction, starting from the upper edge of the first side wall. In other words, the second can The free end of the side wall engages in the free space and is moved or displaced in the longitudinal direction through the open passage along the first side wall of the first channel element. This enables the first channel element to be placed on the second channel element during assembly. The assembly of the two channel elements to form the drainage channel is simplified.

In a preferred embodiment, the form-fitting means forms a collar which, starting from the upper edge of the first side wall, is folded downwards. The collar runs essentially parallel to the first side wall. In other words, the collar extends downward, starting from the upper edge, along the first side wall, the free space being formed between the first side wall and the collar. The collar can be formed by a fold. In other words, the collar can be made by folding. The collar can be designed in one piece, in particular monolithically, with the first side wall of the first channel element. It is advantageous here that the drainage channel has a compact and structurally simple design. The drainage channel can also be manufactured inexpensively.

In the context of the invention, the terms "upward" and "downward" relate to directional information based on a vertical axis, in particular a z-axis, of the drainage channel, which is oriented orthogonally to the longitudinal axis, in particular the x-axis, of the drainage channel.

In a further preferred embodiment, a second side wall is provided which extends in the longitudinal direction of the drainage channel. The second side wall has an upper edge at a distance from the bottom of the channel elements. The distance between the upper edge of the second side wall and the floor is smaller than a distance between the upper edge of a first side wall of the drainage channel and the floor. In other words, the drainage channel has a second side wall which extends in the longitudinal direction and which has a smaller height in relation to the first side wall. The first side wall and the second side wall are arranged opposite one another. The two side walls extend in the longitudinal direction of the drainage channel. In this embodiment, the top edge is the second Side wall in relation to the upper edge of the first side wall downwards, in particular towards the bottom, arranged offset. The second side wall can have a side wall height that is approximately 50 mm less than the first side wall.

Due to the reduced height of the second side wall, a sealant can be applied in order to ensure the tightness between a door or a window profile and the channel elements. A sealing paint or a sealing film can be used as a sealant. The entire drainage channel can also be provided or lined with the sealant.

In a further preferred embodiment, at least one third channel element is provided, which is arranged in a form-fitting manner in the second channel element. The second channel element and / or the third channel element can have at least one further form-locking means into which the other channel element engages, the channel elements being relatively displaceable in the longitudinal direction for adjusting the length of the drainage channel. In this embodiment, the second channel element forms an intermediate piece which is arranged in the longitudinal direction between the first and the third channel element. The third channel element essentially corresponds to the first channel element, which is mirrored on an imaginary plane that is spanned transversely to the longitudinal direction of the drainage channel.

The second channel element connects the first and the third channel element in a longitudinally displaceable manner. The second channel element is open on both end faces, so that the first and third channel elements can be arranged therein such that they can be displaced in a form-fitting manner. The first and third channel elements are arranged in a form-fitting manner in the second channel element, the second channel element engaging displaceably in the form-fitting means of the first and / or third channel element. As an alternative or in addition, the second channel element can have at least one form-locking means into which the first and / or the third channel element engages in a longitudinally displaceable manner. It is advantageous here that, due to the three-part design, the drainage channel can be adapted to larger facade areas to be drained, in particular door and window areas.

In one embodiment, the first and / or the second channel element have at least one drainage device in order to discharge liquids from the receiving space, the drainage device being arranged on a side wall of the channel element. The drainage device can be formed by a connecting piece, in particular a pipe connecting piece, which connects the receiving space to a drainage system in the assembled state. The first channel element preferably has the drainage device. The second channel element can generally serve to extend the drainage channel. The second channel element can be seen as an extension element. The lateral arrangement of the drainage device has the advantage that the drainage channel saves installation space in the assembled state and, for example, can be connected to a drainage system at a low installation depth. This reduces the effort involved in assembly.

According to the independent claim 11, the invention relates to a channel system with at least one drainage channel according to the invention and at least one covering device, in particular a grating, which is at least partially arranged in the drainage channel and has several openings for the passage of a liquid.

In a preferred embodiment of the channel system, the covering device is arranged free-standing in the receiving space of the drainage channels.

In a further preferred embodiment of the channel system, the cover device has at least one cover element, in particular a grating, and at least one support unit that holds the cover element free-standing, the support unit having a receiving part, at least one support foot and at least one locking part. The receiving part receives the cover element. The support foot and the locking part can each be movably mounted on the receiving part such that the cover element can be adjusted in height by the support foot and the cover element can be locked against a side wall of the drainage channel by the locking part.

With regard to the channel system, reference is made to the advantages explained in connection with the drainage channel. In addition, it can Alternatively or additionally, the channel system has individual features or a combination of several features mentioned above with regard to the drainage channel.

The invention is explained in more detail below with further details with reference to the accompanying drawings. The illustrated embodiments represent examples of how the drainage channel according to the invention and the channel system according to the invention can be designed.

Fig. 1

eine perspektivische Ansicht einer Entwässerungsrinne nach einem erfindungsgemäßen Ausführungsbeispiel;

Fig. 2

einen Querschnitt durch die Entwässerungsrinne gemäß Fig. 1;

Fig. 3

einen Querschnitt durch ein Rinnensystem nach einem erfindungsgemäßen Ausführungsbeispiel, wobei eine Abdeckvorrichtung in einer Entwässerungsrinne gemäß Fig. 1 angeordnet ist;

Fig. 4

eine perspektivische Ansicht einer Entwässerungsrinne nach einem weiteren erfindungsgemäßen Ausführungsbeispiel; und

Fig. 5

einen Querschnitt durch die Entwässerungsrinne gemäß Fig. 4.

In these show

Fig. 1

a perspective view of a drainage channel according to an embodiment of the invention;

Fig. 2

a cross section through the drainage channel according to Fig. 1 ;

Fig. 3

a cross section through a channel system according to an embodiment of the invention, wherein a cover device in a drainage channel according to Fig. 1 is arranged;

Fig. 4

a perspective view of a drainage channel according to a further embodiment of the invention; and

Fig. 5

a cross section through the drainage channel according to Fig. 4 .

In the following, the same reference numbers are used for parts that are the same and have the same effect.

Fig. 1 shows a drainage channel 10 according to an embodiment of the invention, which is variably adjustable in length. The drainage channel 10 can be used as a facade channel for draining facade and / or terrace surfaces. The drainage channel 10 can be used in particular for draining window and / or door elements or door sills. Furthermore, other, not mentioned areas of application for the drainage channel 10 according to the invention are possible.

According to Fig. 1 the drainage channel 10 has two channel elements 11 which are elongated. The two channel elements 11 have a common longitudinal axis which corresponds to the longitudinal axis of the drainage channel 10. The two channel elements 11 each have a bottom 25, two side walls 14, 17 and an end wall 26. The side walls 14, 17 of the channel elements 11 are arranged opposite one another and extend upwards from the bottom 25. In relation to a vertical axis which is orthogonal to the longitudinal axis of the drainage channel 10, the side walls 14, 17 and also the end walls 26 extend parallel upwards. Specifically, the side walls 14, 17 are designed essentially at right angles to the floor 25.

The bottom 25, the end walls 26 and the side walls 14, 17 of the channel elements 11 jointly delimit a receiving space 12 for a liquid to be discharged, in particular surface water. The drainage channel 10 is designed to be open at the top.

As in Fig. 1 As can be seen, the first channel element 11 'has two first side walls 14 which are arranged opposite one another and which extend in the longitudinal direction of the first channel element 11'. Furthermore, the second channel element 11 ″ has two second side walls 17 which are arranged opposite one another and which extend in the longitudinal direction of the second channel element 11 ″.

The channel elements 11 engage in one another in the longitudinal direction so that they form the common receiving space 12. The side walls 14, 17 and the end walls 26 delimit the receiving space 12 circumferentially. The two channel elements 11 are each designed to be open at the longitudinal end of the channel element 11 opposite the end wall 26, so that liquids to be discharged can flow between the two channel elements 11.

According to the Figs. 1 to 3 the channel elements 11 are each U-shaped. The channel elements 11 are thin-walled. The first channel element 11 'is partially arranged in the second channel element 11 ". Specifically, the first channel element 11' is positively arranged with an outer contour 27 on an inner contour 28 of the second channel element 11". In other words, the first channel element 11 'is on the inside of the second channel element 11 " positively arranged. The outer contour 27 of the first channel element 11 'rests flat against the inner contour 28 of the second channel element 11 ". It is also possible for the first channel element 11' with the outer contour 27 to alternate in sections and / or on the inner contour 28 of the second channel element 11" or is applied selectively.

The two channel elements 11 are connected to one another in a relatively displaceable manner. In other words, the two channel elements 11 are connected to one another in a continuously displaceable manner in the longitudinal direction. As a result, the total length of the drainage channel 10 is variable, in particular continuously adjustable. During assembly, the drainage channel 10 can thus be adapted to a required length by simply moving one or both channel elements 11 in the longitudinal direction. The drainage channel 10 can therefore be used in a variety of ways.

As in the Figs. 1 to 3 As can be clearly seen, the first channel element 11 ′ has a form-fit means 13 on each of the upper edges 15 of the two first side walls 14. The form-fit means 13 extends in the longitudinal direction over the entire length of the first side walls 14. It is alternatively possible that the form-fit means 13 are formed in sections along the upper edges 15.

For lateral stabilization and guidance, the second channel element 11 ″ engages with the second side walls 17 in the associated form-fit means 13 of the first side walls 14. The second side walls 17 each have a free end 29 that is essentially parallel to the top in relation to the vertical axis The form-locking means 13 is formed by a collar 23 which, starting from the upper edge 15 of the respective first side wall 14, is folded down essentially parallel to one another. In other words, the collar 23 extends starting from the upper edge 15 of the first side wall 14 in FIG In this case, the collar 23 is designed to be open downwards, in particular in the opposite direction to the upper edge 15. The collar 23 is formed by a fold.

According to Fig. 2 a longitudinal free space 16 is formed between an inner surface 19 of the form-locking means 13 or of the collar 23 and an outer surface 21 of the respective first side wall 14. In other words, limit the first side wall 14 and the collar 23 form a free space 16. The second side walls 17 engage in the two free spaces 16 of the first channel element 11 ′ in the region of the free ends 29 so as to be displaceable in the longitudinal direction. The second channel element 11 ″ thus engages on the outside of the first channel element 11 ′ in the respective free space 16 of the first channel element 11 ′.

The respective free space 16 has a width 18 in cross section which essentially corresponds to the wall thickness 22 of the respectively engaging second side wall 17 of the second channel element 11 ″. In other words, the cross-sectional width of the free space 16 essentially corresponds to the wall thickness 22 of the second side wall 17 of the second channel element 11 ". As a result, the second side wall 17 of the second channel element 11 ″ is safely guided and laterally stabilized.

The second side wall 17 can lie laterally on both sides, ie on the outer surface 21 of the first side wall 14 and the inner surface 19 of the collar 23, the second channel element 11 ″ being displaceable in the longitudinal direction. The free space 16 can be designed such that between the second side wall 17 and the outer surface 21 of the first side wall 14 and / or the inner surface 19 of the collar 23 a slight play is provided.

The width 18 of the free space 16 is to be understood as the minimum distance between the inner surface 19 of the collar 23 and the outer surface 21 of the first side wall 14 orthogonal to the longitudinal axis or at right angles to the longitudinal axis of the first channel element 11 '.

According to Fig. 1 and 3 the first channel element 11 ′ has a drainage device 24 which is arranged on one of the two first side walls 14. The drainage device 24 forms a connection piece which, when installed, connects the receiving space 12 to a drainage system for draining the liquid. The drainage device 24 is arranged on the first side wall 14 in such a way that, in the installed state, the liquid located in the receiving space can flow essentially completely independently from the receiving space. For this purpose, a through opening 31 in the first side wall 14 can be formed essentially flush with the floor.

Fig. 3 shows a channel system 40 with the drainage channel 10 according to the invention and a cover device 41 which is arranged free-standing in the receiving space 12 of the drainage channel 10. The drainage channel 10 is embedded in a floor 45 and lined with a liquid seal. The gutter system 40 according to Fig. 3 is arranged, for example, on a door 48, in particular a balcony door, in such a way that any liquid or water that accumulates can flow off via a door element 49 through the cover device 41 into the receiving space 12 of the drainage channel 10.

The cover device 41 has a fluid-permeable cover element 43 for the passage of the liquid, the cover element 43 comprising a plurality of passage openings 42. Furthermore, the cover device 41 has a plurality of support units 44 which support the cover element 43 on the bottom 25 of the channel elements 11. In addition to supporting the cover element 43 on the floor 25, the support units 44 are used to adjust the height of the cover element 43 and to lock it laterally against the side walls 14, 17 of the channel elements 11. For this purpose, the support units 44 each have a support foot 47 and a locking part (not shown). The cover element 43 is decoupled from the side walls 14, 17. In other words, an air gap is provided between the cover element 43. The cover element 43 is formed here by a grating.

Fig. 4 and Fig. 5 show a drainage channel 10 according to a further embodiment of the invention, which is variably adjustable in length. In contrast to the drainage channel 10 according to Figs. 1 to 3 has the drainage channel 10 according to Fig. 4 and 5 additionally a third channel element 11 '''.

The drainage channel 10 according to Fig. 4 and 5 thus has a total of three channel elements 11 which are elongated. The channel elements 11 have a common longitudinal axis which corresponds to the longitudinal axis of the drainage channel 10. In other words, the three channel elements 11 are arranged with one another in the longitudinal direction, the channel elements 11 lying on the common longitudinal axis. The second channel element 11 "is arranged in the longitudinal direction between the first channel element 11 'and the third channel element 11'''. The second channel element 11" connects the first and the third channel element 11 ', 11''' with one another in a displaceable manner. The third channel element 11 '''essentially corresponds to the first channel element 11', which is mirrored on an imaginary plane that is spanned transversely to the longitudinal direction of the drainage channel 10.

The drainage channel 10 has two side walls 14 ′, 17 ′ extending in the longitudinal direction, two end walls 26 and a base 25. The bottom 25, the end walls 26 and the side walls 14 ', 17' jointly delimit a receiving space 12 for a liquid to be discharged, in particular surface water. The side walls 14 ', 17' are arranged opposite one another transversely to the longitudinal direction. Furthermore, the end walls 26 are arranged opposite one another in the longitudinal direction. The drainage channel 10 is designed to be open at the top.

The side walls 14 ', 17' and the end walls 26 delimit the receiving space 12 circumferentially. The side walls 14 ′, 17 ′ of the drainage channel 10 are formed by the side walls of the three channel elements 11. The first and the third channel element 11 ′, 11 ′ ″ are each designed to be open at the longitudinal end of the channel element 11 opposite the end wall 26. Furthermore, the second channel element 11 ″ is designed to be open on both end faces, so that liquids to be discharged can flow between the three channel elements 11.

The first and the third channel element 11 ', 11' "'are partially arranged in the second channel element 11". The first and the third channel element 11', 11 "'are specifically each with an outer contour 27 on an inner contour 28 of the second channel element 11 "arranged in a form-fitting manner. In other words, the first and the third channel element 11 ', 11' '' are arranged on the inside of the second channel element 11 "in a form-fitting manner.

The first and third channel elements 11 ', 11''' rest flat with the outer contour 27 on the inner contour 28 of the second channel element 11 ". The first and third channel elements 11 ', 11"' protrude longitudinally into the second channel element 11 ″ so that they form the common receiving space 12. The three channel elements 11 are connected to one another in a relatively displaceable manner in the longitudinal direction. In other words, the three channel elements 11 are in FIG Connected to one another in a longitudinally adjustable manner. As a result, the total length of the drainage channel 10 is variable, in particular continuously adjustable.

According to the Fig. 4 and 5 the three channel elements 11 are each U-shaped. The channel elements 11 are thin-walled.

As in the Fig. 4 and 5 can be clearly seen, the two side walls 14 ', 17' of the drainage channel 10 differ. The first side wall 14 'of the drainage channel 10 extends from the bottom 25 over the full height of the drainage channel 10. The second side wall 17', that of the first Side wall 14 'is arranged opposite, extends starting from the bottom 25 over part of the height of the drainage channel 10. The height of the drainage channel 10 runs parallel to a vertical axis which is orthogonal to the longitudinal axis of the drainage channel 10. Specifically, the side walls 14 ′, 17 ′ are designed essentially at right angles to the floor 25.

The first side wall 14 ′ has an upper edge 15 which is essentially flush with the end walls 26 of the drainage channel 10. The second side wall 17 'has a further upper edge 51 which is spaced apart from the upper edge 15 of the first side wall 14' in the height direction or vertical direction of the drainage channel 10.

The upper edge 51 of the second side wall 17 'can be spaced between 30 mm and 100 mm, in particular between 40 mm and 60 mm, from the upper edge 15 of the first side wall 14' in the height direction. The upper edge 51 of the second side wall 17 'is preferably spaced between 45 mm and 55 mm, preferably approximately 50 mm, from the upper edge 15 of the first side wall 14' in the height direction. In other words, the second side wall 17 ′ has a reduced side wall height in relation to the first side wall 14 ′. The upper edge 51 of the second side wall 17 'is at a distance from the floor 25 which is smaller than a distance from the upper edge 15 of the first side wall 14'.

The reduced side wall height of the second side wall 17 'is necessary because, during the assembly of the drainage channel 10, at least one sealing means is applied to a door profile lower part or a lower door frame and to the drainage channel 10, in particular the second side wall 17 ′ and / or the floor 25, must be applied in order to ensure the tightness between the door or window profile and the drainage channel 10. The reduced side wall height of the second side wall 17 'provides sufficient free space so that the sealant can be applied. A sealing paint or a sealing film can be used as a sealant. The entire drainage channel 10 can also be provided with the sealant, in particular lined.

As in Fig. 4 As shown, the first and the third channel element 11 ′, 11 ″ ″ each have a form-fit means 13 on the upper edges 15 of the two first side walls 14 of the channel elements 11 ′, 11 ″ ″. The form-fit means 13 extends in the longitudinal direction over the entire length of the first side walls 14 of the respective channel element 11 ', 11'''. Alternatively, it is possible for the form-fitting means 13 to be formed in sections along the upper edges 15. The second channel element 11 "engages with a second side wall 17 in the respective form-locking means 13, so that the second channel element 11" is positively connected to the first and third channel elements 11 ', 11 "' and can be moved in the longitudinal direction to adjust the length of the drainage channel 10 . The second side wall 17 of the second channel element 11 "is guided in the longitudinal direction in the form-fit means 13 of the first and third channel element 11 ', 11"'. The first and the third channel element 11 ', 11 "' have on the second side wall 17 ' the drainage channel 10, in contrast to the first side wall 14 ', does not have any form-fit means 13.

With regard to the further configuration of the form-fit means 13, the displaceable engagement of the second channel element 11 "in the form-fit means 13 of the first and third channel elements 11 ', 11"' and the drainage device 24 of the drainage channel 10 according to FIG Fig. 4 and 5 is referred to the description of the drainage channel 10 according to Figs. 1 to 3 referenced.

Reference list

10

Drainage channel

11

Channel elements

11 '

first channel element

11 "

second channel element

11 '' '

third channel element

12th

Recording room

13th

Form fit

14th

first side wall of the first channel element

14 '

first side wall of the drainage channel

15th

Top of the first side wall

16

free space

17th

second side wall of the second channel element

17 '

second side wall of the drainage channel

18th

broad

19th

Inner surface of the form-fit means

21st

Outer surface of the first side wall

22nd

Wall thickness

23

collar

24

Drainage device

25th

floor

26th

Front wall

27

Outer contour

28

Inner contour

29

free end

31

Through opening

40

Gutter system

41

Covering device

42

Passage openings

43

Cover element

44

Support units

45

floor

46

Receiving part

47

Support leg

48

door

49

Door element

51

Upper edge of the second side wall

Claims (13)

Drainage channel (10) for facade and / or terrace surfaces with at least two channel elements (11) which are elongated and engage in one another in the longitudinal direction so that the channel elements (11) circumferentially delimit a common receiving space (12) for receiving a liquid to be discharged, whereby the two channel elements (11) for adjusting the length of the drainage channel (10) are relatively displaceable in the longitudinal direction, the first channel element (11 ') being positively arranged in the second channel element (11 "), the first channel element (11') and / or the second channel element (11 ") have at least one form-locking means (13) into which the other, in particular the first or second, channel element (11 ', 11") engages. Drainage channel according to claim 1,
characterized in that
exactly two channel elements (11) are provided which engage in one another so as to be displaceable in the longitudinal direction to adjust the length of the drainage channel (10). Drainage channel according to claim 1 or 2,
characterized in that
the first channel element (11 ') has a first side wall (14) with an upper edge (15) on which the form-fitting means (13) is designed to extend in the longitudinal direction. Drainage channel according to claim 3,
characterized in that
the first side wall (14) and the form-locking means (13) delimit a free space (16) in between, into which the second channel element (11 ″) engages with a second side wall (17) such that it can be moved in the longitudinal direction. Drainage channel according to claim 4,
characterized in that
the form-fit means (13) is designed such that a width (18) of the free space (16) between an inner surface (19) of the form-fit means and an outer surface (21) of the first side wall (14) is essentially a wall thickness (22) of the second side wall (17) of the second channel element (11 ") corresponds. Drainage channel according to claim 3 or 4,
characterized in that
the interlocking means (13) is designed in such a way that the free space (16) is open in the opposite direction starting from the upper edge (15) of the first side wall (14). Drainage channel according to one of Claims 3 to 5,
characterized in that
the form-fitting means (13) forms a collar (23), in particular a fold, which is folded down from the upper edge (15) of the first side wall (14), the collar (23) being essentially parallel to the first side wall (14) ) runs. Drainage channel according to one of the preceding claims, characterized by
a second side wall (17 ') having an upper edge (51) extending in the longitudinal direction, the upper edge (51) of the second side wall (17 ') is at a distance from a bottom (25) of the channel elements (11) which is smaller than a distance from the upper edge (15) of the first side wall (14') to the bottom (25). Drainage channel according to one of the preceding claims,
characterized in that
at least one third channel element (11 ''') is provided, which is positively arranged in the second channel element (11 "), the second channel element (11") and / or the third channel element (11 "') having at least one further form-locking means (13), in which the other channel element (11 ", 11"') engages, the channel elements (11', 11 ", 11"') being relatively displaceable in the longitudinal direction for adjusting the length of the drainage channel (10). Drainage channel according to one of the preceding claims,
characterized in that
the first and / or the second channel element (11 ', 11 ") have at least one drainage device (24), in particular a drainage nozzle, in order to drain liquids from the receiving space (12), the drainage device (24) on a side wall (15, 17) of the channel element (11 ', 11 ") is arranged. Gutter system (40) with at least one drainage channel (10) according to one of Claims 1 to 10 and at least one covering device (41) which is at least partially arranged in the drainage channel (10) and has several passage openings (42) for the passage of a liquid. Channel system according to claim 11,
characterized in that
the covering device (42) is arranged free-standing in the receiving space (12) of the drainage channels (10). Channel system according to claim 11 or 12,
characterized in that
the cover device (41) has at least one fluid-permeable cover element (43), in particular a grating, and at least one support unit (44) which supports the cover element (43) in a free-standing manner, wherein the support unit (44) has a receiving part (46), at least one support foot (47) and at least one locking part, wherein the support foot (47) and the locking part are each movably mounted on the receiving part (46) such that the cover element (43) is adjustable in height by the support foot (47) and the cover element (43) can be locked against a side wall (14, 17) of the drainage channel (10) by the locking part.

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