Waterspout for draining a gutter in the area of ​​a mural in a building

DE502022003583D1Active Publication Date: 2025-04-30JOSKO TÜREN & FENSTER GMBH
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Patent Information

Application Number
DE502022003583
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-10-20
Publication Date
2025-04-30
Estimated Expiration
2042-10-20

AI Technical Summary

Technical Problem

Existing systems for draining rainwater from gutters in building murals require cleaning the ends of the windowsill, which is labor-intensive and can lead to moisture damage and restricted spatial flexibility in window installation.

Method used

A water yield system that includes a collecting section within the gutter to gather rainwater and a spitting section that directs the water onto the windowsill, eliminating the need for the windowsill to absorb water from the gutter.

Benefits of technology

This solution reduces the maintenance effort for cleaning the windowsill, prevents moisture damage, enhances the interchangeability of the windowsill, and provides greater flexibility in window installation heights.

✦ Generated by Eureka AI based on patent content.
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Description

I. Area of ​​application

[0001] The present invention relates to a gargoyle for draining a gutter in the area of ​​a wall element of a building. The wall element can be a window or a translucent or transparent facade element. The gutter can be a guide rail in which a movable sunshade element can be guided to at least partially protect the wall element from solar radiation. Alternatively, the gutter can be formed by a groove in a reveal of an opening in the building, wherein a side region of a parapet, which can be arranged in the building opening in front of the wall element, can statically engage in the groove. The invention also relates to a combination comprising the gargoyle, the gutter, and a window sill of the wall element. II. Technical background

[0002] Window sills, especially those found on the exterior of buildings in the form of windows, are well known. It is also common to install lateral guide rails on the outside of building openings closed by windows. These form grooves in which sun protection elements are movably guided to protect the window from solar radiation. These sun protection elements can be, for example, so-called zip screens (external roller blinds), roller shutters, or similar.

[0003] Particularly during driving rain, rainwater can penetrate the side guide rails. This rainwater then naturally runs down the guide rails and must be drained away in such a way that it does not penetrate the masonry surrounding the building opening closed by the window. For this purpose, relevant standards stipulate that the water running down the guide rails must be drained onto the windowsill, from which the water can ultimately drain away from the window due to its slope, which slopes away from the window, without entering the masonry.

[0004] As shown, for example, in Figures 23 and 24 on page 20 / 36 of the document Exel Rudolf ET AL: "Guidelines for window sills for their installation in ETICS and rendered facades as well as in suspended facades", May 2, 2014 (2014-05-02), pages 1-36, XP093032212, the drainage of the gutters for the guide rails forming rainwater onto the window sill is usually carried out in the usual way by plastering the window sill at both ends into the reveal of the building opening for the window. The two ends of the window sill protrude so far into the plaster that they are located vertically below the downwardly open guide rails. Water running down the guide rails is thus caught by the plastered ends of the window sill and drained away via the window sill.

[0005] Plastering the ends of a window sill has several disadvantages. Firstly, it represents additional work for the plasterer. Secondly, over time, moisture can penetrate the plaster surrounding each end of the window sill and cause damage to the plaster, such as flaking during frost. Furthermore, a plastered window sill cannot be replaced if it becomes damaged and needs to be replaced. Furthermore, the position of the lower end of the guide rail determines the maximum height at which the window sill can be installed. This sets a boundary condition that must be observed when installing the window and which limits the spatial flexibility when installing the window in individual cases.

[0006] DE 20 2018 005 395 U1 discloses a cover cap intended for installation beneath a guide rail for guiding a blind (roller shutter, Venetian blind). Its purpose is to collect and drain condensate running down the guide rail at its lower end. III. Description of the invention a) Technical task

[0007] It is therefore the object of the present invention to provide a gargoyle for draining a gutter in the area of ​​a wall element of a building and a combination of the gargoyle, the gutter and a window sill of the wall element, in which or in which drainage of rainwater entering the gutter is possible without the need to plaster the respective end of the window sill into the reveal of the building opening closed by the wall element. b) Solution to the task

[0008] This object is achieved by a gargoyle having the features of claim 1 and by a combination with the features of claim 13. Further embodiments of the present invention emerge from the subclaims.

[0009] According to the invention, a gargoyle is proposed for draining a gutter in the area of ​​a wall element of a building, wherein a window sill is assigned to the wall element. The gutter is either a guide rail which serves to guide a movable sun protection element, for example a zip screen (external roller blind) or a roller shutter, for at least partially protecting the wall element from solar radiation, or a groove in the reveal of the building opening accommodating the wall element, wherein a side region of a parapet arranged in the building opening, for example a parapet pane, can engage in the groove. The wall element can be a window or, for example, a transparent or at least see-through facade element of a building. A sill element corresponding to a window sill in windows also exists in facade elements.

[0010] Such a bench element is also referred to as a window sill, although it is installed in conjunction with a facade element.

[0011] If the gutter is a guide rail, the sun protection element is vertically movable between a lower sun protection position and an upper non-sun protection position, guided by two guide rails on the sides of the sun protection element. The gargoyle has, on the one hand, a collecting section for collecting water that has entered the guide rail and, on the other hand, a spout section for spouting the water in a spouting direction. The aforementioned collecting section can be arranged inside the gutter at a point in the vertical longitudinal direction of the gutter in such a way that at least one drainage edge of the spout section of the gargoyle facing away from the collecting section lies vertically above an area of ​​a windowsill of the wall building and can thus spout the water collected by the collecting section of the gargoyle from above onto the windowsill.

[0012] The advantage of the gargoyle according to the invention is that the window sill no longer has to grip underneath the guide rail, as is the case with the prior art and the relevant standards, in order to collect the water running down it. This allows the window sill to be shorter overall, and there is no longer any need to plaster both ends of the window sill into the reveal of the building opening. The resulting ability to install the window sill within the clear width of a plastered building opening leads to better replaceability of the window sill. The effort required by the prior art for the plasterer to plaster the ends of the window sill is eliminated, and moisture damage to the plaster in the area of ​​the ends of the window sill can be avoided.Furthermore, the gargoyle according to the invention can be sealed, for example, glued, into the guide rail at any vertical position suitable for the specific installation situation. This provides an additional degree of freedom with regard to the installation height of the window sill in the building opening compared to the prior art.

[0013] Preferably, the collecting section is shaped and dimensioned such that it essentially completely fills a cross-section of the interior of the gutter. This ensures that the water running down the interior of the gutter can be collected as completely as possible. The seal between the collecting section and the inner walls of the interior of the gutter can be achieved, for example, by gluing the collecting section of the gargoyle into the interior of the gutter with a sealing adhesive.

[0014] Alternatively, sealing with other sealants such as silicone or similar would be conceivable. Alternatively or additionally, it would be conceivable to at least give the collecting section a certain degree of elasticity and make its horizontal cross-section slightly larger than the cross-section of the interior of the channel, so that the collecting section can be elastically compressed before being inserted into the channel and expands elastically after insertion into the channel. This would press the collecting section against the inner walls of the channel, thus creating a certain sealing effect.

[0015] Within the scope of the present invention, the collecting section can be formed exclusively by a collecting surface or a thin collecting plate. InAdvantageously, the collecting surface can be inclined downwards in the direction of the spout section of the gargoyle, so that the water collected by it flows towards the spout section due to gravity.

[0016] It is further conceivable that the collecting section is not only formed by a collecting surface, but also comprises a side wall arranged at its edge, which extends upwards from the collecting surface in such a way that the collecting section forms a type of upwardly open collecting container that is fluidically connected to the spout section of the water spout. The collected water can thus flow from the collecting container into the spout section. The side wall preferably extends around the collecting surface, leaving only the fluidically connected connection to the spout section open.

[0017] The side wall has a free end edge facing away from the collecting surface. InAt an end region of the side wall that is spaced from the collecting surface, the side wall tapers upwards toward the end edge. This advantageously prevents residual water from accumulating on the free end edge of the side wall of the collecting section.

[0018] According to the invention, the spout section can also consist exclusively of a spout surface along which the water can flow in the spouting direction. The collecting surface merges into the spout surface in the area of ​​the fluid-mechanical connection. This transition is preferably flush and designed without a bend or edge. However, a design with a bend or a step between the collecting surface and the spout surface would also be conceivable, as long as the spout surface is lower than the collecting surface at such a transition.

[0019] InAdvantageously, the spouting surface slopes downwards in the direction of water spouting, so that the water flowing through the spouting surface is assisted by gravity. If the collecting surface is also sloped, the slope of the spouting surface is preferably chosen to be the same as the slope of the collecting surface.

[0020] It is also advantageous to design the spouting surface so that it slopes transversely to the direction of water spouting, so that it slopes away from the wall element. This imparts a momentum component to the water flowing over the spouting surface before reaching the windowsill, which regularly slopes away from the wall element, such that it impacts the windowsill at least partially in the direction in which it will later flow from the windowsill.

[0021] It is also conceivable for the spout section to consist not only of a spout, but also to include at least one lateral guide wall for directing the water essentially in the spout direction. The at least one guide wall is preferably arranged on the side of the spout facing away from the wall element. This prevents a surge of water flowing over the spout from moving toward the joint between the window sill and the reveal of the building opening.

[0022] If necessary, however, a lateral guide wall can be arranged on both the side of the spout facing the wall element and the side of the spout facing away from the wall element to direct the water essentially in the direction of the water spout. This design allows the corresponding gargoyle to be installed at both the right and left ends of the window sill, preventing any movement of a surge of water toward the joint between the window sill and the reveal of the building opening.

[0023] Advantageously, the spouting area can be designed to widen in the direction of the water spout. This reduces the flow velocity at which the draining water leaves the spouting section toward the windowsill.

[0024] According to the invention, a combination is also proposed which comprises a gargoyle according to the invention, a gutter in the region of a wall element of a building, wherein a window sill is assigned to the wall element, and a window sill of the wall element. As already mentioned above, the gutter can be a guide rail for guiding a movable sun protection element or a groove in the reveal of the building opening accommodating the wall element, wherein a side region of a parapet arranged in the building opening, e.g. a parapet panel, can engage in the groove. As also already mentioned above, the wall element can be a window or, for example, a transparent or at least see-through facade element of a building.

[0025] The gargoyle, with its collecting section, is arranged inside the gutter. The spouting section of the gargoyle protrudes from the gutter and extends at least partially over the windowsill, allowing it to spew the water collected by the collecting section onto the windowsill from above. Preferably, the collecting section of the gargoyle essentially completely fills a cross-section of the interior of the gutter.

[0026] If the gutter is a guide rail, the inventive combination allows the gargoyle to function as a lower stop for the sun protection element. In particular, the catch surface can be used as a stop surface for the sun protection element. A separate lower stop element for stopping the sun protection element in its lower sun protection position is advantageously eliminated.

[0027] The combination according to the invention can additionally comprise an insert rail inserted into the guide rail, in which the sun protection element is directly guided. In this case, the sun protection element is guided in the guide rail indirectly, i.e. by interposing the aforementioned insert rail. Water entering the insert rail during driving rain is then also indirectly located in the guide rail in which the insert rail is arranged. When using an insert rail in the guide rail, the collecting section of the gargoyle is advantageously arranged below the insert rail and is at least partially aligned with it. The collecting section therefore forms a type of downward extension of the insert rail.

[0028] To limit or determine the installation depth of the insert rail in the guide rail, the insert rail is preferably provided with two laterally protruding stop bars. In a transition area between the catch section or catch surface and the spout section or spout surface, the gargoyle has two laterally protruding wing walls, which are aligned downwards toward the window sill with the stop bars on the insert rail.

[0029] If an insert rail, for example, with elongated holes for height adjustment is used, rainwater can enter the space between the guide rail and the insert rail. Therefore, at least when using such an insert rail, it is advantageous if the catchment section of the gargoyle essentially completely fills the cross-section of the interior of the guide rail. c) Examples of implementation

[0030] Embodiments of the present invention are described below by way of example with reference to the accompanying drawings. In the drawings: Fig. 1: a perspective view of an embodiment of the gargoyle according to the invention; Fig. 2: a view from above of the Fig. 1 shown gargoyle; Fig. 3: a front view of the Fig. 1 shown gargoyle from the bottom right or on the Fig. 2 shown gargoyle from below; Fig. 4: a sectional view according to section AA in Fig. 2 or section AA in Fig. 3 ; Fig. 5: a perspective view of a portion of an embodiment of the combination according to the invention comprising a gargoyle, a channel in the form of a guide rail for guiding a sun protection element that can be moved vertically upwards or downwards, and a window sill; Fig. 6: a view of the Fig. 5shown combination from above, with an additional insert rail inserted into the guide rail; Fig. 7 a perspective view of the Fig. 5 and 6 shown combination with insert rail inserted into the guide rail; and Fig. 8 a side view of the Fig. 5 to 7 combination shown, with a part of a mural in the form of a window also being shown.

[0031] In the drawings, like reference symbols indicate like parts or like elements.

[0032] The Fig. 1 to 4 show an embodiment of a gargoyle 1 according to the invention. It can be provided with a gutter in the form of a guide rail (cf. Fig. 5 to 8 ) for guiding a movable sun protection element as well as with a channel in the form of a groove (not shown) arranged in the reveal of the building opening receiving the wall former for receiving a side area of ​​a parapet.

[0033] As particularly in Fig. 1 As can be seen, the gargoyle 1 has a box-shaped collecting section 2 and a spouting section 3. The illustrated embodiment is formed in one piece, so that the collecting section 2 and the spouting section 3 are integrally connected to one another. The gargoyle 1 according to the exemplary embodiment is injection-molded and made of plastic. Alternatively, the gargoyle 1 can be formed in two or more parts and / or made of a material other than plastic, for example, preferably from stainless metal or from a fiber composite material.

[0034] As in the Fig. 1, 2 and 4As can be seen, the collecting section 2 in the embodiment shown has a rectangular collecting surface 4 and a side wall 5 extending upwards from the collecting surface 4 and encircling the collecting surface 4 along three sides thereof. On the fourth side of the rectangular collecting surface 4, ie on the side shown in Fig. 1 right front side or on the Fig. 2 On the side located below, there is at least partially no side wall. This creates a transition passage 11 between the collection section 2 and the spout section 3, through which rainwater can flow from the collection section 2 into the spout section 3. The transition passage 11 thus forms a fluid-mechanical connection between the collection section 2 and the spout section 3.

[0035] In the embodiment shown, the spout section 3 has a spout surface 6, over which the gargoyle 1 spouts the rainwater collected in the collecting section 2 in the direction shown in the Fig. 1, 2 and 4 marked water spout direction WR. As shown in the Fig. 1, 2 and 3 As can be seen, the spouting area 6 widens in the water spouting direction WR.

[0036] As in the Fig. 1 to 4As can be seen, the spout section 3 of the gargoyle 1 shown has two lateral guide walls 9 for laterally directing the rainwater in the spouting direction WR. The guide walls 9, together with the spouting surface 6, form a flow channel that ensures that the rainwater can only leave the spout section 3 via a drainage edge 12 located at the end of the spouting surface 6 facing away from the collecting section 2. In the exemplary embodiment shown, the drainage edge 12 runs essentially transversely to the spouting direction WR.

[0037] As in the Fig. 1 , 3 and 4 As can be seen, the height of the guide walls 9 decreases in the water spout direction WR, reaching a value of zero at the outlet edge 12 of the spout surface 6. Furthermore, the two guide walls 9 follow the spout surface 6, which widens in an arc-shaped manner in the water spout direction WR, and are therefore correspondingly curved.

[0038] The U-shaped side wall 5, which surrounds the collecting surface 4, has a free end edge 7 at its upper end. Below this U-shaped end edge 7, the side wall 5 has an end region 8, which is spaced from the collecting surface 4 and tapers towards the end edge 7. In this way, a very narrow end edge 7 is created, on which, advantageously, only very little rainwater can remain.

[0039] Rainwater, which is collected in a guide rail (cf. Fig. 5 to 8 ), into which the collecting section 2 of the gargoyle 1 is inserted, runs downwards, passes via the inclined surfaces of the end region 8 into the collecting container formed by the side wall 5 and the collecting surface 4 for collecting the rainwater.

[0040] As in the Fig. 1, 2 and 4As can be seen, the end edge 7 of the side wall 5 has a sealing projection 13 that protrudes from the end edge 7 in a direction away from the collecting surface 4. The sealing projection 13 is advantageous for sealing the end edge 7 against the inner walls of the guide rail that accommodates the collecting section 2. Furthermore, it allows for sufficient tolerances for the outer circumference of the collecting section 2.

[0041] As best shown in the sectional view according to Fig. 4 As can be seen, in the embodiment shown, both the collecting surface 4 and the spouting surface 6 are inclined in the direction of the water spouting direction WR, ie in the direction of the discharge edge 12.

[0042] It is particularly advantageous that the collecting surface 4 and the spouting surface 6 have the same angle of inclination α relative to the horizontal. The angle of inclination α is preferably in the range of 5° to 20°, particularly preferably in the range of 8° to 15°. In the transition passage 11, the illustrated embodiment thus has a continuous, both stepless and edgeless transition between the collecting surface 4 and the spouting surface 6. Alternatively, it would be conceivable, for example, to form an edge in the transition passage 11 such that the spouting surface 6 has a smaller or larger angle of inclination in the water spouting direction WR than the collecting surface 4.

[0043] In the Fig. 1 , 3 and 4 Walls 14, 15 and 16 can be seen, which are located below the collecting surface 4 of the collecting section 2. The walls 14, 15 and 16 - as well as the wall which is in Fig. 1The two walls, located at the rear right on the side of the gargoyle 1 facing away from the wall 15 and not visible, below the collecting surface 4, have no function with regard to collecting and draining rainwater. They serve only to mechanically stabilize the gargoyle 1 or the collecting section 2 in the guide rail. Given the essential function of collecting and draining rainwater, the four aforementioned walls could be omitted without replacement.

[0044] The one in the Fig. 1 to 4 The gargoyle 1 shown is mirror-symmetrical to its vertical center plane, which runs in the gargoyle direction WR. This is advantageous in that this gargoyle 1 is suitable for both the left and right guide rails in a building opening. Maintaining different gargoyle variants is unnecessary.

[0045] As an alternative to the illustrated embodiment, it is conceivable to provide only a single guide wall 9, or to provide only a single guide wall 9 and additionally incline the spouting surface 6 transversely to the water spouting direction WR such that it slopes toward the side of the spouting surface 6 where no guide wall 9 is located. Such a water spout would no longer be mirror-symmetrical to its vertical center plane, which runs in the water spouting direction WR. In this case, one variant of the water spout would have to be provided for the left guide rail and one variant of the water spout for the right guide rail.

[0046] The Fig. 5 to 8 illustrate the installation situation of the gargoyle 1 as well as an embodiment of the combination according to the invention, which comprises the gargoyle 1, a channel in the form of a guide rail 17, in which a sun protection element (not shown) for protecting a Fig. 8The visible wall element in the form of a window 18 is designed to be protected from solar radiation and includes a window sill 19. Window 18 is, for example, a fixed-panel window that cannot be opened. Naturally, the combination according to the invention can also be used in conjunction with other window types, such as turn-and-turn, tilt-and-turn, or sliding windows, which can be opened. Furthermore, the combination according to the invention can also be used in conjunction with wall elements in the form of facade elements with window sills.

[0047] In the perspective view according to Fig. 5It can be seen how the catch section 2 of the gargoyle 1 is installed in a guide rail 17 having a U-shaped cross-section. The guide rail 17 is recessed flush with the reveal 20 of a building opening for the window 18. As can be seen, the catch section 2 essentially completely fills the U-shaped cross-section of the interior of the guide rail 17. The upper end edge 7 of the catch section 2 can be sealed against the inner walls of the guide rail 17, for example, using a sealing adhesive. Alternatively or additionally, it is conceivable to clamp the catch section 2 into the guide rail 17 to ensure the best possible seal.

[0048] In the Fig. 5 , 7 and 8 It can be seen how the spout section 3 of the gargoyle 1 extends above the lateral end of the window sill 19. Between the front side at the lateral end of the window sill 19 and the reveal 20 there is a Fig. 5marked sealing material 21 is arranged, which is bridged by the spout section 3 of the gargoyle 1.

[0049] It is particularly advantageous that the gargoyle 1, built into the guide rail 17, can function as a lower stop for the sun protection element. This prevents the lower end of the sun protection element from resting directly on the window sill 19 in its fully extended position, which over time could result in an undesirable perforation, which may appear as a darker or lighter stripe compared to the base color of the window sill 19.

[0050] In the embodiment shown, in addition to the guide rail 17, a Fig. 6 , 7 and 8 The insert rail 22 shown is used, which is inserted into the U-profile of the guide rail 17 and in turn has a U-profile, as best shown in the Fig. 6 and 8 can be seen. In For example, a sun protection element (not shown) in the form of a zip screen is guided in a conventional manner along the insert rail 22. Of course, it is fundamentally conceivable to guide the sun protection element directly and immediately along a guide rail 17 that is suitably designed for this purpose. The insert rail 22 is then unnecessary.

[0051] How best in Fig. 7 can be seen or as can be seen from a summary of the Fig. 5 and 6 In the embodiment shown, the collecting section 2 of the gargoyle 1, which is inserted into the guide rails 17, is located below the insert rail 22 inserted into the guide rail 17. The collecting section 2 is at least partially aligned with the insert rail 22. As best shown in Fig. 7 As can be seen, the collecting section 2 represents an extension of the insert rail 22 downwards.

[0052] In the Fig. 6 , 7 and 8 It can be seen that the insert rail 2 has a stop bar 23 at the free ends of its two U-legs, which are directed outwards away from each other, ie in the Fig. 6 , 7 and 8 to the right or left.

[0053] As in the Fig. 1 and 2 As can be seen, the gargoyle 1 according to the embodiment in the area of ​​the transition between the collecting surface 4 and the spouting surface 6 has two away from each other, ie in Fig. 2 to the left or right, respectively, whose cross-section in shape and size essentially corresponds to the cross-section of the stop strips 23, as best seen by comparing the Fig. 2 on the one hand with the Fig. 6 and 8 on the other hand can be seen.

[0054] The catch section 2 and the wing walls 10 thus form a visually uniform downward extension of the insert rail 22. The catch section 2 and the wing walls 10, with their design, thus blend inconspicuously into the overall construction for guiding the sun protection element. This is best seen in Fig. 7 to see.

[0055] If, in the illustrated embodiment, rainwater penetrates the interior of the insert rail 22 as a result of driving rain, it naturally flows downwards within the insert rail 22. At the lower end of the insert rail 22, it is then collected by the collecting section 2 of the gargoyle 1, whereupon, due to the inclination of the collecting surface 4, it flows through the transition passage 11 into the spout section 3 of the gargoyle 1. Due to the inclination of the spout surface 6, the rainwater continues to flow in the spout section 3 until it reaches the drainage edge 12.

[0056] When flowing through the spout section 3, the Fig. 5 marked sealing material 21 in the joint between the reveal 20 and the window sill 19 and the rainwater runs off the spout 6 only at the point where the drainage edge 12 is located. Since the spout section 3 or the spout 6, coming from the reveal 20, projects beyond the lateral end of the window sill 19 into a space above the window sill 19, the drainage edge 12 is located vertically above a portion of the window sill 19, which here is surrounded by a Fig. 5 The collected rainwater is therefore always spewed directly onto the window sill 19, from where it is ultimately drained away due to the slope of the window 18.

[0057] In the Fig. 5 and 6This drainage of rainwater takes place on the window sill 19 to the top right, in Fig. 7 This drainage of rainwater takes place to the bottom right and in Fig. 8 This drainage of rainwater takes place from the window sill 19 to the left. LIST OF REFERENCE SYMBOLS

[0058] 1 Gargoyle 2 Catch section 3 Spill section 4 Catch surface 4 of catch section 2 5 Side wall 5 of catch section 2 6 Spill surface 7 End edge of side wall 5 8 End area of ​​side wall 5 9 Guide walls on spout surface 6 10 Wing walls on gargoyle 1 11 Transition passage 12 Drain edge on spout surface 6 13 Sealing overhang 14 Wall below catch surface 4 15 Wall below catch surface 4 16 Wall below catch surface 4 17 Channel, guide rail 18 Wall former, window 19 Window sill 20 Reveal of the building opening for window 18 21 Sealing material between window sill 19 and reveal 20 22 Insert rail 23 Stop strips on the insert rail 22 αInclination angle of the collecting surface 4 and the spouting surface 6 WRWater spouting direction

Claims

1. Water spout (1) for draining a channel (17) in the region of a wall former (18) of a building, the wall former (18) being associated with a windowsill (19), and the water spout (1) comprising a collecting portion (2) for collecting water that has entered the channel (17), characterised in that the water spout (1) comprises a spout portion (3) for discharging the water in a water spout direction (WR), the collecting portion (2) being able to be arranged in the interior of the channel (17) in such a way, at a location in its longitudinal direction, that at least one outflow edge (12) of the spout portion (3) facing away from the collecting portion (2) comes to rest vertically above a region of the windowsill (19), and the spout portion (3) can discharge the water, collected in the collecting portion (2), from the top of the windowsill (19).

2. Water spout according to claim 1, characterised in that the collecting portion (2) is shaped and dimensioned in such a way that it substantially fills a cross-section of the channel (17).

3. Water spout according to either claim 1 or claim 2, characterised in that the collecting portion (2) comprises a collecting surface (4).

4. Water spout according to claim 3, characterised in that the collecting surface (4) extends in a downwardly sloping manner in the direction of the spout portion (3).

5. Water spout according to either claim 3 or claim 4, characterised in that the collecting portion (2) comprises a side wall (5) in addition to the collecting surface (4), which side wall extends upwards in such a way that the collecting portion (2) forms a collecting container which is open at the top and which is in fluid-mechanical connection with the spout portion (3).

6. Water spout according to claim 5, characterised in that the side wall (5) comprises a free end edge (7) that faces away from the collecting surface (4) and tapers, in an end region (8) spaced apart from the collecting surface (4), in the direction of the end edge (7).

7. Water spout according to any of claims 3 to 6, characterised in that the spout portion (3) comprises a spout surface (6) along which the water can flow in the water spout direction (WR), and the collecting surface (4) transitions into the spout surface (6).

8. Water spout according to claim 7, characterised in that the spout surface (6) extends in a downwardly sloping manner in the water spout direction (WR).

9. Water spout according to claim 8 in conjunction with claim 4, characterised in that the slope of the collecting surface (4) is the same as the slope of the spout surface (6).

10. Water spout according to any of claims 7, 8 or 9, characterised in that the spout surface (6) extends in a manner sloping transversely to the water spout direction (WR) in such a way that it drops away in the direction facing away from the wall former (18).

11. Water spout according to any of claims 7 to 10, characterised in that the spout portion (3) comprises at least one lateral guide wall (9) in addition to the spout surface (6), for guiding the water in the water spout direction (WR).

12. Water spout according to any of claims 7 to 11, characterised in that the spout surface (6) widens in the water spout direction (WR).

13. Combination comprising a water spout (1) according to any of the preceding claims, a channel (17) in the region of a wall former (18) of a building, the wall former (18) being associated with a windowsill (19), and a windowsill (19), characterised in that the water spout (1) is arranged having its collecting portion (2) in the interior of the channel (17), the spout portion (3) protruding out of the channel (17) and extending over the windowsill (19), such that it can discharge the water, collected in the collecting portion (2), from the top of the windowsill (19).

14. Combination according to claim 13, characterised in that the collecting portion (2) substantially fills a cross-section of the channel (17).

15. Combination according to either claim 13 or claim 14, characterised in that the channel is a groove in an embrasure (20) of a building opening, into which the wall former (18) can be installed, it being possible for a side region of a balustrade, which can be arranged in the building opening before the wall former (18), to engage in the groove.

16. Combination according to either claim 13 or claim 14, characterised in that the channel is a guide rail (17), in which a movable sun protection element can be guided, for at least partially protecting the wall former (18) from solar radiation.

17. Combination according to claim 16, characterised in that the water spout (1) serves as a lower stop for the sun protection element.

18. Combination according to either claim 16 or claim 17, characterised in that the combination additionally comprises an insert rail (22) which is inserted into the guide rail (17) and in which the sun protection element can be directly guided, the collecting portion (2) of the water spout (1) being arranged below the insert rail (22) and being aligned therewith at least in part.

19. Combination according to claim 18, characterised in that the insert rail (22) comprises two stop bars (23) for limiting its installation depth in the guide rail (17), and the water spout (1) is provided, in the region of a transition between the collecting surface (4) and the spout surface (6), with two return walls (10) which align with the stop bars (23) downwards in the direction of the windowsill (19).