EP3854961A1 - Latch device, drainage channel and channel system - Google Patents

Abstract

The invention relates to a locking device (10) for a drainage channel (40), which has a first connection area (11) and a second connection area (12), the two connection areas (11, 12) being arranged opposite one another and supported by a web (13) are connected to one another, the two connecting areas (11, 12) each comprising at least one latching element (14) for connecting to a side wall (41) of the drainage channel (40), the latching element (14) being installed in the side wall (41) locks in position for stabilization, and the two connecting areas (11, 12) have further form-locking elements (15 ', 15 ", 15"') by means of which the locking device (10) can be connected to another locking device (10 '). The invention also relates to a drainage channel and a channel system.

Description

The invention relates to a locking device, a drainage channel and a channel system. A locking device according to the preamble of claim 1 is for example from EP 2 995 732 A1 famous.

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 also be referred to as facade channels.

From the aforementioned EP 2 995 732 A1 For example, a facade gutter is known which has connecting elements that can be broken out of the gutter body. The connection elements form cross struts that are inserted into the side walls of the channel body to fix them. On the channel body, tab-shaped connection elements are also formed in one piece, by means of which, for example, two channel bodies can be connected to one another in the longitudinal direction of the channel.

Such facade channels are conventionally produced by a folding process in order, for example, to form the channel body and also corresponding connection elements on the channel body in one piece. The high number of folds to be carried out results in an increased amount of work and increased production costs. Furthermore, tab-shaped connection elements lead to increased waste during production, since these protrude beyond the actual channel body.

Edged transverse struts are also known from the prior art, with which facade channels are stiffened in the transverse direction. These cross struts are made with an increased number of bevels and are connected to the side walls of the channel body, for example, by rivets. Such cross struts have high manufacturing tolerances due to the folds, which have a disadvantageous effect on the width tolerance of the channel body. Furthermore, these can often only be connected to the side walls through increased assembly effort and are therefore cost-intensive to manufacture.

In order to reduce the production costs, it is expedient to manufacture the facade channels using roll forming processes in large quantities. However, compared to the bending process, the roll forming process has the disadvantage that set-up times and acquisition costs for tools are increased. The folding process for the production of facade channels is therefore often better suited for small quantities.

The invention is based on the object of specifying a locking device for a drainage channel which can be manufactured inexpensively and assembled with little effort. The invention is also based on the object of specifying a drainage channel and a channel system.

According to the invention, this object is achieved with regard to the locking device by the subject matter of claim 1. With regard to the drainage channel and the channel system, the aforementioned object is achieved in each case by the subject matter of claim 14 (drainage channel) and claim 15 (channel system).

Specifically, the task is solved by a locking device for a drainage channel. The locking device has a first connection area and a second connection area, the two connection areas being arranged opposite one another and connected to one another by a web. The two connecting areas each include at least one latching element for connecting to a side wall of the drainage channel. During assembly, the locking element engages in the side wall in a position-fixing manner for stabilization. Furthermore, the two connection areas have further form-locking elements, by means of which the locking device can be connected to a further locking device.

The invention has several advantages. Due to the two connection areas which are connected to one another by the web, the locking device has a structurally simple structure, as a result of which the production costs are reduced.

In the assembled state of the locking device, the locking element is locked into the respective side wall of the drainage channel. As a result, the locking device in the drainage channel is secured against slipping or falling out. In other words, the locking device is locked in position in the drainage channel in the assembled state. The locking element interacts with the side wall in a form-fitting manner. Due to the latching connection between the locking device and the side walls, additional fastening means or fixing means can be dispensed with, as a result of which the number of components is reduced. Furthermore, the locking device in the drainage channel means that the locking device can be used quickly and easily with little effort. This reduces the manufacturing costs of the drainage channel.

The connection areas generally serve to connect the locking device to the side walls of the drainage channel. In addition, the connection areas serve to connect the locking device to another locking device. The further locking device is preferably a locking device according to claim 1 of the invention.

In the assembled state, in addition to fixing the locking device, the respective side wall is fixed in position by the latching element. This has the The advantage that the locking device stabilizes the shape of the drainage channel via the side walls. This is particularly advantageous in the manufacture of the drainage channel by a roll forming process, since tensions are released when the continuous profile strand of the drainage channel is cut to a desired channel length, as a result of which at least partial deformation takes place before and after the cut edge. Starting from the cut edge, the cut profile strand can re-deform in a length range of up to 20cm. Deformation is prevented by the mounted locking device. This has the advantageous effect that a visually clean appearance of the drainage channel is ensured.

In the assembled state, the locking device is in its final assembly position in the drainage channel, the locking device being firmly connected to the side walls by the connecting areas. The connection areas engage in the side walls.

The invention has the further advantage that the locking device can be connected to a further locking device by means of the further form-fitting elements, whereby the drainage channel can be easily expanded or lengthened by the locking devices in the assembled state. The locking device thus advantageously enables a modular design, which reduces assembly effort and costs.

Preferred embodiments of the invention are specified in the subclaims.

In a particularly preferred embodiment, the two connection areas each have at least one holding element which is formed on the outside in the longitudinal direction of the web and to which the latching element is flexibly, in particular elastically, connected. In other words, the locking device has two structurally identical holding elements on the connecting areas, which are formed in opposite longitudinal directions of the web towards the outside. In the assembled state, the holding elements can engage in the side walls of the drainage channel and form a stop transversely to the longitudinal direction of the channel for the side walls. The holding elements serve to hold the side walls of the drainage channel, the holding elements being the side walls Fix in the assembled state on the outside. In addition, the holding elements serve as a carrier for the locking elements. In the assembled state, the locking elements introduce a pretensioning force into the holding elements, so that the locking device is securely held in its position in the drainage channel. Due to the flexible connection of the locking elements with the holding elements, the locking elements can be pre-tensioned during assembly so that the locking elements automatically snap into the side walls in the final assembly position of the locking device, in particular without further assistance, and fix the locking device. This advantageously enables quick and easy assembly of the locking device.

As a result of the flexible connection of the latching element with the holding element, the locking device can be detachably connected to the side walls of the drainage channel in the assembled state. In other words, the latching connection can be released by elastically pivoting the latching element in order to dismantle the locking device.

In the context of the invention, the arrangement, alignment, formation or extension of elements of the locking device "outward" or "outward" is to be understood as the arrangement, alignment, formation or extension of the elements in a direction away from a center of the web.

In a preferred embodiment, at least one material recess is formed between the latching element and the holding element, so that the latching element can be elastically pivoted during assembly. In other words, the latching element is connected to the holding element by an elastic region which has a material thickness that is smaller than a material thickness of the latching element and of the holding element. Due to the material recess, the latching element on the holding element can be moved elastically. This has the advantage that assembly is simplified.

In a further preferred embodiment, the latching element has an angle, in particular an obtuse angle, with the holding element, so that the latching element extends obliquely outward from the holding element. In the assembled state, a pressing force on the respective side wall is thereby advantageously increased, so that the locking device is firmly connected to the side wall and the shape of the side wall is kept stable. This results in a visually clean appearance of the drainage channel.

The latching element preferably has an entry surface which is in contact with the side wall during assembly in order to elastically pretension the latching element. During assembly, the holding element with the latching element is inserted into a through opening in the side wall. When it is inserted into the through opening, the entry surface rests against a lateral opening edge of the through opening, the entry surface causing an elastic pretensioning of the latching element due to the inclined position. In the final assembly position of the locking device, the latching element engages automatically, in particular without further auxiliary forces, on the opening edge of the through-opening. The entry surface advantageously improves the handling of the locking device and facilitates assembly.

The latching element also preferably has at least one locking step which, in the assembled state, interacts with the side wall and fixes the locking device. The locking step can be formed on the free, in particular the upper, end of the latching element. It is conceivable that the locking element has more than one locking step, in particular two locking steps.

In a preferred embodiment, the holding element has at least one holding surface which, in the assembled state, rests flat against an outer surface of the side wall. The holding surface can rest on the outer surface of the side wall over the entire surface or at least over part of the surface. The side wall is held in a shape-stabilizing manner on the outer surface by the holding surface. This has the advantage that a desired shape of the drainage channel is ensured.

In a further preferred embodiment, the holding element is T-shaped and has a transverse web and a longitudinal web. The holding surface is formed on the inside of the transverse web and, in the assembled state, rests on both sides of the longitudinal web on the outer surface of the side wall. The through opening in the side wall of the drainage channel can have a keyhole shape. This enables the holding surface to rest on both sides of the outer surface of the side wall. A stable fastening of the side wall is achieved in this way.

The holding surface preferably has an angle, in particular an acute angle, α of 3 ° to a vertical plane of the locking device. The vertical plane is spanned in the transverse direction to the web that connects the two connecting areas with one another. It is advantageous here that the locking device is suitable for drainage channels whose side walls are securely fixed with an inclination of 3 ° to the channel center.

In a further preferred embodiment, the two connection areas each have at least one contact element which is arranged opposite the holding element. The holding element and the contact element are preferably spaced apart from one another in order to accommodate the side wall. The holding element and the contact element are connected to one another. Specifically, the transverse web of the holding element can be connected to the contact element by the longitudinal web. In the assembled state, the contact element forms an internally arranged counterpart to the externally arranged holding element, the side wall being fixed between the contact element and the holding element. The minimum distance between the contact element and the holding element can correspond to the side wall thickness of the drainage channel. The side wall can advantageously be securely fixed by the holding element and the contact element. The contact element has the further advantage that inadmissible bending of the side wall towards the center of the channel is prevented.

The holding element and the contact element can be arranged with respect to one another in such a way that, in the assembled state, the side wall is fixed in a shape-stabilizing manner. This ensures a visually clean appearance of the drainage channel. Furthermore, in the case of a drainage channel produced by a roll forming process, a re-deformation or a springing back of the channel extrusion profile in the area of the cut edge is prevented.

Furthermore, the contact element can have at least one contact area which, in the assembled state, is in line contact or small-area contact with an inner surface of the side wall. Such a contact area prevents a collision or jamming of the locking device on the side wall during assembly.

At least one spacer element is preferably provided, through which, in the assembled state, a gap is formed, at least in sections, between a channel bottom of the drainage channel and the two connecting areas as well as the web. This has the advantage that in the assembled state or in the built-in state of the drainage channel with the locking device, the surface water of the channel to be discharged can flow. In other words, the gap is provided to allow the surface water to flow away in the channel. The gap can be designed in such a way that coarse impurities, such as, for example, larger stones, soil or rubbish, stick to the locking device and are thus screened out. This has the advantage that when the locking device is used as the end-side closure of the drainage channel, the penetration of such contaminants is prevented.

The latching element can be connected to the spacer element, so that the latching element in the assembled state biases the spacer element against the channel bottom in order to fix the locking device. The spacer element can be rod-shaped, plate-shaped and / or knob-shaped. The locking element in combination with the spacer element enables the locking device to be braced in the channel body of the drainage channel. This ensures a tight fit of the locking device.

In a particularly preferred embodiment, the form-fit element of the first connection area forms a receiving element and the form-fit elements of the second connection area form a fixing element and a position element. The locking device can be connected to the further locking device by means of the receiving element, the fixing element and the positioning element. The further locking device can, as described above, be the locking device according to claim 1. The receiving element serves to receive a further fixing element and a further position element of the further locking device. The fixing element is used to fix the locking device with the further locking device in the longitudinal direction of the channel. The position element is used for the lateral alignment and height alignment of the two locking devices with respect to one another. In the assembled state, the two drainage channels can be connected to the front sides by the locking devices. The drainage channels together form a common one Drainage channel or a common channel system. In other words, the drainage channels can be extended as required by the locking devices.

In a preferred embodiment, the receiving element forms a C-shaped extension which extends transversely to the longitudinal direction of the web and is designed such that a further position element of the further locking device can be positively received. The C-shaped extension can be open to the outside transversely to the longitudinal direction of the web and in the longitudinal direction of the web. In the assembled state, the receiving element can form a pocket with the inner surface of the associated side wall, into which the further position element of the further locking device can engage for alignment. When the locking device is arranged on an end face of the drainage channel, interaction with the further position element of the additional locking device and thus the alignment of two drainage channels with respect to one another is made possible.

In a further preferred embodiment, the receiving element has at least one fixing surface in order to interact with a further fixing element of the further locking device. The fixing surface can be formed at an angle, in particular an acute angle, to the longitudinal direction of the web. Starting from the first connection area, the fixing surface can taper inwards at an angle, in particular towards the center of the channel. This region of the receiving element can form an undercut in which the fixing surface is arranged. If the locking device is connected to the further locking device, the further fixing element engages in the undercut of the receiving element, so that the further fixing element interacts with the fixing surface. It is advantageous here that a secure connection of the locking devices is achieved in the longitudinal direction of the channel.

In a preferred embodiment, the fixing element is hook-shaped and extends transversely to the longitudinal direction of the web. The fixing element is designed to interact with a fixing surface of a receiving element of the further locking device under prestress. This has the advantage that the locking devices are firmly connected to one another in the longitudinal direction of the channel. To solve the locking devices from each other, must first Biasing force of the fixing element can be overcome. An independent loosening of the locking devices from one another is prevented.

In a further preferred embodiment, the position element is plate-shaped and extends transversely to the longitudinal direction of the web. The position element is designed to engage positively in a receiving element of the further locking device. As described above, the position element is used for the lateral alignment and height alignment of the locking devices with respect to one another. In the case of lateral alignment, the position element can rest on the side wall and on the receiving element. During the height alignment, the position element can rest on the receiving element in both height directions, in particular below and above. The position element can only be in contact with the short legs of the C-shaped extension of the receiving element. The position element thus has the advantage that two drainage channels can be easily and quickly brought into a desired position with respect to one another by the locking devices.

In general, the web preferably has a plurality of through openings, so that water can flow through it in the assembled state. Bars, which form a stiffening structure for the web, can be formed between the through openings. This has the advantage that when the locking device is used as the end-face closure of the drainage channel, the penetration of stones or split is prevented.

The two connecting areas and the web are particularly preferably formed from plastic. In other words, the locking device can be formed from plastic. The locking device can be formed completely or at least partially from plastic. The two connecting areas and the web are preferably designed in one piece. It is advantageous here that the locking device can be produced by injection molding and thus large numbers of items can be realized at low unit costs. Furthermore, by designing the locking device by means of injection molding, significantly smaller tolerances are possible than in the case of a locking device that is manufactured by folding. Furthermore, the production of the locking device by injection molding has the advantage that complex shapes can be realized and thus one Functional expansion of the locking device is made possible with little effort.

At least one recess is preferably formed between the web and the respective connecting area in order to at least partially accommodate at least one drainage channel. The recesses can form hollows. It is advantageous here that, in the assembled state, the individual drainage channels can engage with the side walls in the recesses of the locking device of a further drainage channel. This facilitates the stacking of the drainage channels and reduces the stacking height when stacked. Furthermore, secure positioning of the drainage channels, for example on a pallet for storage or transport, is advantageously ensured.

According to the independent claim 14, the invention relates to a drainage channel, in particular a facade channel, with two side walls and at least one locking device according to the invention, the side walls extending in the longitudinal direction and having at least two through openings which are arranged opposite one another. The locking device is pushed into the through openings so that the locking elements of the locking device are locked into the side walls.

According to the independent claim 15, the invention relates to a gutter system with at least two drainage channels according to the invention and at least two locking devices according to the invention, with one locking device in each case being fixedly arranged on an open end face of the drainage channels and interacting through the fixing element and the position element with the receiving element of the locking device arranged opposite such that the drainage channels are connected to one another.

Regarding the advantages of the drainage channel and the channel system, reference is made to the advantages explained in connection with the locking device. In addition, the drainage channel and the channel system can alternatively or additionally have individual features or a combination of several features mentioned above in relation to the locking device.

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 locking device according to the invention, 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 mit mehreren Riegeleinrichtungen nach einem bevorzugten erfindungsgemäßen Ausführungsbeispiel;

Fig. 2

eine perspektivische Ansicht der Riegeleinrichtung gemäß Fig. 1;

Fig. 3

einen Längsschnitt durch die Riegeleinrichtung gemäß Fig. 1, wobei die Riegeleinrichtung im montierten Zustand dargestellt ist;

Fig. 4

eine perspektivische Ansicht der Entwässerungsrinne und der Riegeleinrichtung gemäß Fig. 1 vor der Montage der Riegeleinrichtung;

Fig. 5

eine Seitenansicht der Entwässerungsrinne und der Riegeleinrichtung gemäß Fig. 1 vor der Montage der Riegeleinrichtung;

Fig. 6

eine Seitenansicht der Entwässerungsrinne und der Riegeleinrichtung gemäß Fig. 1, wobei die Riegeleinrichtung im montierten Zustand dargestellt ist;

Fig. 7

eine perspektivische Ansicht der Entwässerungsrinne und der Riegeleinrichtung gemäß Fig. 1, wobei die Riegeleinrichtung im montierten Zustand dargestellt ist;

Fig. 8

eine Draufsicht auf ein Rinnensystem mit zwei Entwässerungsrinnen und zwei Riegeleinrichtungen gemäß Fig. 1 vor einer Verbindung;

Fig. 9

eine perspektivische Ansicht der beiden Riegeleinrichtungen gemäß Fig. 8, wobei die Entwässerungsrinnen nicht dargestellt sind;

Fig. 10

eine Detailansicht eines Längsschnitts durch das Rinnensystem gemäß Fig. 8, nach der Verbindung der Entwässerungsrinnen durch die Riegeleinrichtungen;

Fig. 11

eine Draufsicht des Rinnensystems gemäß Fig. 8, nach der Verbindung der Entwässerungsrinnen durch die Riegeleinrichtungen; und

Fig. 12

eine Seitenansicht von mehreren Entwässerungsrinnen mit montierten Riegeleinrichtungen gemäß Fig. 1 in einem gestapelten Zustand;

In these show

Fig. 1

a perspective view of a drainage channel with several locking devices according to a preferred embodiment of the invention;

Fig. 2

a perspective view of the locking device according to Fig. 1 ;

Fig. 3

a longitudinal section through the locking device according to Fig. 1 , wherein the locking device is shown in the assembled state;

Fig. 4

a perspective view of the drainage channel and the locking device according to FIG Fig. 1 before mounting the locking device;

Fig. 5

a side view of the drainage channel and the locking device according to Fig. 1 before mounting the locking device;

Fig. 6

a side view of the drainage channel and the locking device according to Fig. 1 , wherein the locking device is shown in the assembled state;

Fig. 7

a perspective view of the drainage channel and the locking device according to FIG Fig. 1 , wherein the locking device is shown in the assembled state;

Fig. 8

a plan view of a channel system with two drainage channels and two locking devices according to Fig. 1 before a connection;

Fig. 9

a perspective view of the two locking devices according to Fig. 8 , the drainage channels are not shown;

Fig. 10

a detailed view of a longitudinal section through the channel system according to Fig. 8 , after connecting the drainage channels through the locking devices;

Fig. 11

a top view of the gutter system according to Fig. 8 , after connecting the drainage channels through the locking devices; and

Fig. 12

a side view of several drainage channels with mounted locking devices according to Fig. 1 in a stacked state;

Fig. 1 shows a drainage channel 40 with several locking devices 10 according to a preferred embodiment of the invention. The drainage channel 40 can be used for draining terraces, facade areas or flat roofs, which is built into a soil to be drained as drainage. Such a drainage channel 40 can also be referred to as a facade channel.

The drainage channel 40 has two side walls 41 and a channel bottom 44 which connects the two side walls 41 to one another. The side walls 41 extend in the longitudinal direction of the channel and taper towards the center of the channel. Specifically, the side walls 41 are each designed to be inclined towards the center of the channel. The side walls 41 have an angle α of 3 ° to a z-plane spanned orthogonally to the channel bottom 44 and in the channel longitudinal direction. In other words, the side walls 41 are aligned with the z-plane at an angle α of 3 °. This is in FIGS. 5 and 6 good to see.

Furthermore, the side walls 41 each include a step 45 which extends in the longitudinal direction of the channel and serves to support an inlet element, in particular a grating. The step 45 can be arranged parallel to the channel bottom 45. The step 45 is followed by a collar 46 which, as in the Figures 3 to 7 shown, is formed folded at a free end. The collar 46 extends in the longitudinal direction of the channel.

According to Fig. 1 the drainage channel 40 is shown with a total of three locking devices 10 in the assembled state, the assembly of the individual locking devices 10 being discussed in more detail later. More than three locking devices 10 can also be inserted into the drainage channel 40. Alternatively, fewer than three locking devices 10 can also be inserted into the drainage channel 40.

Fig. 2 shows a perspective view of a locking device 10 according to Fig. 1 . The locking device 10 serves to stiffen and stabilize the shape of the drainage channel 40. Furthermore, the locking device 10 can be connected to a further locking device 10 so that several drainage channels 40 can be connected to form a channel system 60. The gutter system 60 is later based on the Figures 8-11 described.

According to Fig. 2 the locking device 10 has two connecting areas 11, 12 which are arranged opposite one another and are connected to one another by a web 13. The two connecting areas 11, 12 each have a latching element 14, a holding element 16 and a contact element 24 in order to connect the locking device 10 to the respective side wall 41 of the drainage channel 40. In the Fig. 3 , 6 to 8 as 10 and 11 it can be clearly seen how the elements 14, 16, 24 interact with the respective side wall 41 in the assembled state.

The locking device 10 is made of plastic. The locking device 10 can be formed completely or at least partially from plastic. It is conceivable that the locking device 10 also has parts made of metal. In other words, the locking device 10 can be formed from plastic and metal. The locking device 10 is preferably designed in one piece.

As in Fig. 2 As shown, the holding element 16 is arranged on the outside of the respective connecting area 11, 12 in the longitudinal direction of the web 13. The holding element 16 is T-shaped and has a transverse web 22 and a longitudinal web 23. The transverse web 22 is arranged transversely to the longitudinal direction of the web 13 and extends, for example, starting from a horizontal installation position of the locking device 10, essentially vertically. In other words, the holding element 16 is arranged upright on the respective connection area 11, 12.

The latching element 14 is flexibly connected to the transverse web 22 of the holding element 16. Specifically, the latching element 14 is connected to the transverse web 22 by an elastic region 47. In other words, the elastic region 47 is formed between the latching element 14 and the holding element 16. The elastic region 47 has a material recess 17 so that the latching element 14 can be elastically pivoted during assembly. The latching element 14 and the holding element 16 are formed in one piece.

The latching element 14 of the respective connecting area 11, 12 is at an angle to the holding element 16, so that the latching element 14 extends obliquely outward from the elastic area 47. The angle is an obtuse angle.

The latching element 14 also has a locking step 19 which is formed on a free end 48 of the latching element 14. In the assembled state, the locking step 19 interacts with the side wall 41, so that the locking device 10 is fixed. It is conceivable that the latching element 14 has several, in particular at least two, locking steps 19 in order to fix the locking device 10. Alternatively, it is conceivable that the locking element 14 is designed to be stepless. In this case, the locking device 10 would be fixed by surface pressure between the latching element 14 and the side wall 41.

As in Fig. 2 As shown, an entry surface 18 is formed between the locking step 19 and the elastic region 47 and is in contact with the side wall 41 during assembly in order to elastically bias the locking element 14 against an opening edge 49 of a through opening 51 of the side wall 41. The entry surface 18 is formed on a side or outer side 52 of the latching element 14 facing away from the web 13.

The holding element 16 has, as in Fig. 5, 6 and 11 clearly visible, a holding surface 21, which in the assembled state on an outer surface 42 of the Side wall 41 rests. The holding surface 21 is formed on a side or inner side 53 of the transverse web 22 facing the web 13. According to Fig. 11 it is shown that the holding surface 21 of the transverse web 22 in the assembled state rests on both sides of the longitudinal web 23 on the outer surface 42 of the side wall 41. In this case, the holding surface 21 rests on the side wall 41 over the entire surface. The holding surface 21 can alternatively also lie partially flat or flat in sections on the outer surface of the side wall 41. It is conceivable that the holding surface 21 is in point contact or in line contact with the outer surface 42 of the side wall 41.

As in Fig. 6 As shown, the transverse web 22 of the holding element 16 is arranged at an angle α of 3 ° to the z-plane of the drainage channel 40. In other words, the transverse web 22 has an angle α of 3 ° to the z-plane. The z-plane coincides with a vertical plane of the locking device 10. Specifically, the holding surface 21 of the transverse web 22 is aligned with the vertical plane of the locking device 10 at an angle α of 3 °. The transverse web 22 runs obliquely outwards.

As described above, the two connecting areas 11, 12 each include a contact element 24. The contact element 24 is arranged opposite the holding element 16. Specifically, the transverse web 22 of the holding element 16 is arranged opposite the contact element 24, the longitudinal web 23 of the holding element 16 connecting the transverse web 22 to the contact element 24. The contact element 24 and the transverse web 22 of the holding element 16 are spaced apart from one another in order to accommodate the side wall 41 of the drainage channel 40 during the assembly of the locking device 10. The distance between the transverse web 22 and the contact element 24 is in Fig. 5 good to see.

As in Fig. 6 As shown, the holding element 16 and the contact element 24 are arranged with respect to one another in such a way that, in the assembled state, the side wall 41 is fixed in a shape-stabilizing manner. For this purpose, the contact element 24 has a contact area 25 which is in line contact or small-area contact with an inner surface 43 of the side wall 41. The contact element 24 has a surface 53 on the contact side which lies opposite the holding surface 21 of the holding element 14. The distance between the holding surface 21 and the surface 53 increases in the installation direction or in the assembly direction.

Furthermore, the contact element 24 has an arcuate dome 54 which is formed in the longitudinal direction between the web and the holding element. In the assembled state, the arched dome 54 is arranged between the web 13 and the side wall 41, as in FIG Figures 3 to 8 is shown. The arched dome 54 is formed on the side of the contact element 24 facing away from the channel bottom 44.

The locking device 10 further comprises two spacer elements 26, which are formed on a side of the web 13 facing the channel bottom 44 in the assembled state. The spacer element 26 protrudes beyond the web 13 and the connecting areas 11, 12, so that in the assembled state a gap 27 is formed between the channel bottom 44 and the web 13 or the connecting areas 11, 12. When the drainage channel 40 is installed, surface water can flow through the gap 27. Furthermore, the web 13 has a plurality of through openings 34 through which surface water can also flow in the drainage channel 40. Bars 56, which form a stiffening structure for the web 13, can be formed between the through openings 34. This has the advantage that when the locking device 10 is used as the end-side closure of the drainage channel 40, the penetration of stones or split is prevented.

According to Fig. 6 the spacer element 26 rests on the channel bottom 44 in the assembled state. In addition to securing the gap 27, the spacer element 26 also serves to introduce a fixing force into the channel bottom 44, which in the assembled state is transmitted from the latching element 14 via the spacer element 26 to the channel bottom 44. The latching element 14 is connected to the spacer element 26 so that the latching element 14 biases the spacer element 26 against the channel bottom 44. As a result, the locking device 10 is braced in the drainage channel 10 and thus firmly fixed.

In Fig. 2 it is shown that a recess 55 is formed between the contact element 24 and the web 13. The recess 55 has two troughs, each of which is provided for receiving a folded end of a further drainage channel 40. As a result, a large number of drainage channels 40 can be stacked in a space-saving manner. A plurality of stacked drainage gutters 50 are in Fig. 12 shown.

The following is the assembly of the locking device 10 in the drainage channel 40 using the Figures 3 to 7 described.

the Fig. 3 and 7th show the locking device 10 in the assembled state. The locking device 10 is fixed in the drainage channel 40 and is in the final assembly position. the Fig. 4 and 5 show the locking device 10 before assembly.

According to Fig. 4 the respective side wall 41 has at least one through opening 51. The through opening 51 is formed partially vertically and horizontally in the side wall 41. In other words, the through opening 51 extends in the side wall 41 in the section of the side wall 41 inclined towards the channel center and in the step 45. The through opening 51 is formed like a keyhole. In the area of the step 45, the through opening 51 is delimited by an opening edge 49. For assembly, the locking device 10 with the holding element 16 is arranged above the through opening 51. The locking device 10 is then pushed into the respective through opening 51 by means of the holding elements 16.

When pushed in, the transverse web 22 penetrates the through opening 51 in the area of the step 45. The longitudinal web 23 of the holding element 16 engages in the through opening 51 in the inclined area of the side wall 41, so that the locking device 10 is guided during insertion. Before reaching the final assembly position of the locking device 10, the latching element 14 rests against the opening edge 49 through the entry surface 18. As the locking device 10 continues to be pushed in, the latching element 14 is elastically pivoted so that the latching element 14 is pretensioned against the opening edge 49. When the locking device 10 reaches the final assembly position, the locking element 14 pivots in the direction of the opening edge 49 and engages with the locking step 19 on the opening edge 49 of the side wall 41. The locking step 19 interacts with the opening edge 49 in a form-fitting manner. The locking device 10 is firmly locked to the drainage channel 40 in the assembled state. the Figures 5 to 7 show the assembled state of the locking device 10, wherein according to Fig. 7 the locking device 10 is arranged on an open end face 57.

Due to the elastic connection of the locking element 14 with the holding element 16, the locking device 10 is detachably connected to the side walls 41 of the drainage channel in the assembled state. When the locking device 10 is dismantled, the latching connection between the latching element 14 and the opening edge 49 is released by pivoting the latching element 14. The locking device 10 can then be pulled out of the drainage channel 40.

As in Fig. 2 Furthermore, as shown, the two connecting areas 11, 12 of the locking device 10 have further form-locking elements 15 ′, 15 ″, 15 ′ ″, by means of which the locking device 10 can be connected to a further locking device 10. The form-fit element 15 ′ of the first connection area 11 forms a receiving element 28. The second connection area 12 has two further form-fit elements 15 ″, 15 ″ ″, which form a fixing element 29 and a position element 31.

The further locking device 10 according to the Figures 8-11 corresponds to the locking device 10 according to the invention according to the Figures 1 to 7 . In the following description, the same type of devices or elements have the same reference numerals. Alternatively, the further locking device 10 can also be one of the locking device 10 according to FIGS Figures 1 to 7 be different locking device.

According to Fig. 2 the receiving element 28 forms a C-shaped extension 32 which extends transversely to the longitudinal direction of the web 13 and is designed in such a way that a further position element 31 of the further locking device 10 can be positively received. The C-shaped extension 32 is open to the outside transversely to the longitudinal direction of the web 13 and in the longitudinal direction of the web 13. In the assembled state, the receiving element 28 forms a pocket with the inner surface 43 of the side wall 41, into which the further position element 31 of the further locking device 10 engages for alignment. The C-shaped extension 32 has an internally formed contact surface 58 for the further position element 31. In the connected state of the two locking devices 10, as in FIG Fig. 10 and 11 As shown, the respective position element 31 rests on the respective inner surface 43 of the side wall 41 and the contact surface 58. As a result, the locking devices 10 and thus the drainage channels 40 are aligned laterally and fixed laterally.

Furthermore, the receiving element 28 has a fixing surface 33 in order to interact with a further fixing element 29 of the further locking device 10. The fixing surface 33 is formed at an angle β, in particular an acute angle, to the longitudinal direction of the web 13. The fixing surfaces 33 of the receiving element 28 are, for example, in the Fig. 4 , 10 and 11 shown. The fixing surface 33 runs obliquely inwards, starting from the contact element 24, towards the center of the channel. The area between the receiving element 28 and the contact element 24 forms an undercut in which the fixing surface 33 is arranged.

As described above, the second connection region 12 has a fixing element 29. The fixing element 29 is designed in the shape of a hook. The fixing element 29 extends transversely to the longitudinal direction of the web 13. Furthermore, the fixing element 29 is designed to interact with a fixing surface 33 of a receiving element 28 of the further locking device 10 under prestress. The fixing element 29 can thus be acted upon with a pretensioning force. The fixing element 29 is designed to be resilient. In other words, the fixing element 29 forms a spring element.

The second connection area 12 further comprises the position element 31, which is designed in the form of a plate and extends transversely to the longitudinal direction of the web 13. The position element 31 is designed to engage positively in a receiving element 28 of the further locking device 10 (cf. Fig. 9 ). The position element 31 is designed in such a way that, in the connected state of the locking devices 10, the position element 31 engages with the further receiving element 28 in a form-fitting manner. The position element 31 is delimited on two sides by the further receiving element 28, in particular at the top and bottom, so that the locking devices 10 or the drainage channels 40 are fixed in both height directions.

As in Fig. 10 and 11 is shown, the fixing element 29 rests against the respective fixing surface 33. The fixing element 29 is pressed against the fixing surface 33 by an acting pretensioning force, so that the locking devices 10 and thus the drainage channels 40 are connected to one another and form a common channel system 60. To connect the locking devices 10, the fixing elements 29 each have an inclined surface 59 that engages during the snap action causes elastic bending of the fixing element 29. In order to release the snap connection between the two locking devices 10, the pretensioning force of the fixing elements 29 must be overcome. The two locking devices 10 can therefore be releasably connected to one another by means of the fixing element 29.

Fig. 11 shows two drainage channels 40 which, as described above, are connected to one another by the locking devices 10. The locking devices 10 are fixedly arranged on the open end faces 57 of the drainage channels 40. The locking devices 10 interact through the fixing element 29 and the position element 31 with the receiving element 28 of the locking device 10 arranged opposite in each case in such a way that the drainage channels 40 are connected to one another.

Reference list

10

Locking device

11

first connection area

12th

second connection area

13th

web

14th

Locking element

15th

further form-fit elements

16

Retaining element

17th

Material recess

18th

Drive-in area

19th

Locking step

21st

Holding surface

22nd

Crossbar

23

Longitudinal web

24

Investment element

25th

Contact area

26th

Spacer element

27

gap

28

Receiving element

29

Fixing element

31

Position element

32

C-shaped extension

33

Fixing surface

34

Through openings

40

Drainage channel

41

Side wall

42

External surface of the side wall

43

Inner surface of the side wall

44

Channel bottom

45

step

46

collar

47

elastic area

48

free end of the locking element

49

Opening edge

51

Through opening

52

Outside of the locking element

53

Area of the contact element

54

arched dome

55

Recess

56

bar

57

open face of the drainage channel

58

Contact surface of the extension

59

Inclined surface of the fixing element

60

Gutter system

α

Angle between holding surface and vertical plane

β

Angle between the fixing surface and the longitudinal direction

Claims (15)

Locking device (10) for a drainage channel (40) which has a first connecting area (11) and a second connecting area (12), the two connecting areas (11, 12) being arranged opposite one another and being connected to one another by a web (13),
characterized in that
the two connecting areas (11, 12) each comprise at least one latching element (14) for connecting to a side wall (41) of the drainage channel (40), the latching element (14) latching in a position-fixing manner during assembly in the side wall (41) for stabilization, and the two connecting areas (11, 12) have further form-locking elements (15 ', 15 ", 15"') by means of which the locking device (10) can be connected to a further locking device. Locking device according to claim 1,
characterized in that
the two connecting areas (11, 12) each have at least one holding element (16) which is formed on the outside in the longitudinal direction and with which the latching element (14) is flexibly, in particular elastically, connected, in particular wherein at least one material recess (17) is formed between the latching element (14) and the holding element (16) so that the latching element (14) can be elastically pivoted during assembly is. Locking device according to claim 2,
characterized in that
the latching element (14) has an angle, in particular an obtuse angle, to the holding element (16), so that the latching element (14) extends obliquely outward from the holding element (16). Lock device according to one of the preceding claims,
characterized in that
the latching element (14) has an entry surface (18) which is in contact with the side wall (41) during assembly in order to elastically pretension the latching element (14) and / or for the latching element (14) to have at least one locking step (19) which interacts with the side wall (41) in the assembled state and fixes the locking device (10). Lock device according to one of the preceding claims,
characterized in that
the holding element (16) has at least one holding surface (21) which, in the assembled state, rests flat against an outer surface (42) of the side wall (41). Locking device according to claim 5,
characterized in that
the holding element (16) is T-shaped and has a transverse web (22) and a longitudinal web (23), the holding surface (21) being formed on the inside of the transverse web (22) and, in the assembled state, on both sides of the longitudinal web (23) on the The outer surface (42) of the side wall (41) rests and / or that the holding surface (21) has an angle o, in particular an acute angle o, of 3 ° to a vertical plane of the locking device (10). Lock device according to one of the preceding claims,
characterized in that
the two connecting areas (11, 12) each have at least one contact element (24) which is arranged opposite the holding element (16), the holding element (16) and the contact element (24) being spaced from one another for receiving the side wall (41). Locking device according to claim 7,
characterized in that
the holding element (16) and the contact element (24) are arranged with respect to one another in such a way that in the assembled state the side wall (41) is fixed in a shape-stabilizing manner and / or that the contact element (24) has at least one contact area (25) which in the assembled state with an inner surface (43) of the side wall (41) is in line contact or small-area contact. Lock device according to one of the preceding claims,
characterized in that
at least one spacer element (26) is provided through which, in the assembled state, a gap (27) is formed at least in sections between a channel bottom (44) of the drainage channel (40) and the two connecting areas (11, 12) and the web (13), in particular wherein the latching element (14) is connected to the spacer element (26) so that the latching element (14) in the assembled state biases the spacer element (26) against the channel bottom (44) in order to fix the locking device (10). Lock device according to one of the preceding claims,
characterized in that
the form-fit element (15 ') of the first connection area (11) form a receiving element (28) and the form-fit elements (15 ", 15"') of the second connection area (12) form a fixing element (29) and a position element (31), the The locking device (10) can be connected to the further locking device by the receiving element (28), the fixing element (29) and the positioning element (31). Locking device according to claim 10,
characterized in that
the receiving element (28) forms a C-shaped extension (32) which extends transversely to the longitudinal direction of the web (13) and is designed such that a further position element of the further locking device can be positively received and / or that the receiving element (28) has at least one fixing surface (33) in order to interact with a further fixing element of the further locking device, the fixing surface (33) being formed at an angle β, in particular an acute angle, to the longitudinal direction of the web (13). Locking device according to claim 10 or 11,
characterized in that
the fixing element (29) is hook-shaped and extends transversely to the longitudinal direction of the web (13), wherein the fixing element (29) is designed to interact with a fixing surface of a receiving element of the further locking device under prestress and / or that the position element (31) Is plate-shaped and extends transversely to the longitudinal direction of the web (13), wherein the position element (31) is designed to engage positively in a receiving element of the further locking device. Lock device according to one of the preceding claims,
characterized in that
the web (13) has several through openings (34) so that water can flow through in the assembled state and / or that the two connecting areas (11, 12) and the web (13) are made of plastic and / or that at least one recess (55 ) is formed between the web (13) and the respective connecting area (11, 12) in order to at least partially accommodate at least one drainage channel (40). Drainage channel (40), in particular facade channel, with two side walls (41) and at least one locking device (10) according to claim 1, wherein the side walls (41) extend in the longitudinal direction and have at least two through openings which are arranged opposite one another, the locking device (10) in the Through openings is inserted so that the locking elements (14) of the locking device (10) are locked into the side walls (41). Channel system (70) with at least two drainage channels (40) according to claim 14 and at least two locking devices (10) according to claim 1, wherein in each case one locking device (10) is fixedly arranged on an open end face (57) of the drainage channels (40) and through the The fixing element (29) and the positioning element (31) interact with the receiving element (28) of the locking device (10) arranged opposite in each case in such a way that the drainage channels (40) are connected to one another.

Images