EP2899324B1 - Seal system - Google Patents

Description

The invention relates to a drainage channel, comprising two in the installed position adjacent arranged channel body, which are connected to form a sealing system for sealing the joint area between these channel bodies together, wherein the end face of a channel body is formed as a groove side and the end face of the other channel body as a spring side and these channel body are connected by a tongue and groove joint as the first locking element in the joint area and thus in the horizontal direction, ie in the direction of the longitudinal extent of the channel body, at least one extract safety of the butt joint between the two channel bodies is made.

Such a drainage channel is from the DE 197 31 585 A1 previously known. It is also a sealed connection between two U-shaped channel profile elements .. In these grooves between the inner wall of a channel element and the outer wall of the other adjacent channel element, a seal is arranged, which in the radial direction between the axially extending sealing surface elements of extends the channel elements involved involved compound. To the problem that the adjacent gutter elements can be displaced by settlement in the ground in the vertical or lateral direction and thereby the seal between the grooves can be affected to solve, proposes the previously known solution to arrange a locking device in the upper region of the legs of the channel elements, which ensures that the end faces of the channel elements involved in the connection remain fixed in the connecting position. In this case, in a solution to one of the adjacent end walls, a radially outwardly projecting wall is arranged, which engages in a receiving pocket on the adjacent end wall of the other channel element with the interposition of an O-ring seal. In another embodiment, the radially outwardly facing wall of a channel section is provided with a U-shaped sealing profile, which in turn engages in a formed on the adjacent channel wall receiving pocket of the other channel element involved in the connection. In both cases, this is a backup of the connection in the longitudinal direction of the extension of the channel elements involved in the connection. Incidentally, in both cases, the channel elements are also secured transversely to their extension direction by the connections described in each case. Securing the butt joint in the installation direction vertical to the longitudinal extent is not provided by the connection of the gutters in the joint area itself, but rather by a sufficiently secure anchoring of the gutter elements involved in the respective adjacent in-situ concrete.

From the EP 1 719 848 A2 it is already known to provide a sealing system for connecting two adjacent drainage channels by means of a joint portion of the involved gutters cross-connecting means, in which on both sides depending on a retaining clip of the connection means with a formation of the joint area of the respective adjacent channel to form a positive connection in engagement is brought that the adjacent channel elements are connected to each other in the longitudinal direction. Incidentally, with the shape and the corresponding hook element in the connection area a labyrinth seal for sealing this Realized butt joint. The connection means has a second latching means with two spring elements, which engage with latching means on the channel elements involved in such a way that in addition a displacement of the channels in the installation direction is prevented vertically to the longitudinal extent of the grooves. Thus, the butt joint is ultimately realized by adding a connection means that overlaps the joint area of the drainage channels involved.

Also from the DE 20 2011 000 491 U1 it is already known to overlap the joint area by means of an additional stiffening element, wherein the stiffening element consists essentially of a likewise U-shaped and adapted in its shape to the adjacent gutter body wall section. The wall sections furthermore have connection means on at least one side, but preferably on both sides, with the aid of which the stiffening element can be connected to the channel bodies involved in the butt joint.

A drainage channel sealed in the joint area is also known from the German patent specification DE 195 20 801 C1 previously known. Alternatively, the channel elements can also be connected to each other in the joint area by a connecting element which engages under the grooves in the joint region, the connecting element being connected to the two end-side groove ends with the interposition of a sealing element. Such a solution is known from the German patent application DE 10 2005 020 753 A1 previously known.

Another sealed butt joint of two channel elements is from the US 3,255,545 A1 previously known. Again, two channel elements are connected by a known tongue and groove connection in the joint area with the interposition of a seal and the corresponding butt joint secured by a formed in the frame region of the groove screw in the longitudinal direction of the gutters. For this purpose, the upper side of the gutter wall of a gutter formed Zargenelement overlaps the upper edge of the Rinnenwandungen the respectively adjacent gutter, so that this Zargenüberstand one gutter with the gutter wall of the adjacent gutter can be screwed. As a result, a securing of the grooves in the connecting position in the direction of the longitudinal extent of the channels involved in the connection is realized. A backup of the connection transverse to the longitudinal extent of the involved gutters is not apparent.

Again in an alternative embodiment according to the DE 93 19 836 U1 can be integrally produced Entwässerungsrinnen also be joined together that special flap parts are formed in their joint area, which are formed as the other channel end receiving connection shoes, so that the channel ends are again connected to each other with the interposition of a sealing element.

Basically, such drainage channels are optionally made of concrete, steel, plastic, fiber concrete or polyester concrete and used for drainage of roads, squares, storage areas or traffic areas. In most cases, such drainage channels on tongue and groove systems, which mesh when laying and above all serve as installation aid of the gutters. An automatic seal is not made with these compounds in most cases. If you want to ensure an efficient sealing of the gutters in the joint area, so special sealing measures are required. Here, as explained above, either subsequently introduced sealing compounds in prepared grooves or additional connection elements used as sealing sleeves.

All mentioned subsequent or additional construction measures are associated with additional costs and are therefore only in exceptional cases or at least rarely installed. This is due not least to the fact that the current DIN standards and the European standard EN 1433, concerning drainage channels for traffic areas regularly a leak test for the used But channel body as such requires no rules regarding the connection between the individual channel sections provides.

Based on this prior art, the invention is based on the object to make the butt joint between the channel bodies involved in this connection so that directly when laying the gutter body automatically, i. without additional subsequent sealing effort or subsequently to be attached elements, a tight butt joint and that is made over the entire circumference of the frontal connection of the gutter body involved.

The solution of this object is achieved by means of a drainage channel comprising two adjacently disposed in the installation position, each one-piece channel body with the features of the current claim 1. Advantageous embodiments and further developments of this invention can be found in the dependent claims 2 to 6.

In addition to the previously known tongue and groove connection, which usually only causes a pull-out protection of the butt joint in the direction of the longitudinally extending channel body, the solution according to the invention provides for an interaction of an additional locking element on the spring side with an additional complementary retaining element on the groove side, in such a way that thereby securing the tongue and groove connection is also effected vertically to the longitudinal extent of the connected channel body and this is thus prevented against displacement upwards or downwards against each other in conjunction with a cancellation of the seal caused by the connection. In addition, a third locking element in the solution according to the invention ensures that the connection is secured transversely to the longitudinal extent of the two channel body and thus they are pressed together in this direction, so that the seal is secured in all three axes of their spatial extent and pressed in such a way in that a sealed connection is established between the gutters involved.

It is irrelevant for the object of the invention, whether the locking element on the spring or the groove side or the complementary retaining element on the tongue or spring side of the butt joint are arranged. All mentioned embodiments are to be regarded as part of the invention as well as the same effect.

In addition, the tightness of the tongue and groove connection according to the invention can be further improved by the fact that the connection of the participating drainage channels is made with the interposition of a sealing profile.

In this connection, the latching element engages on the tongue or spring side of the butt joint to form the butt joint in a corresponding recess on the spring or groove side of the respective other channel body, thereby producing a backup of the compound in the vertical direction to the longitudinal extent of the involved gutter body is.

In an additional or alternative embodiment, one or more sawtooth surfaces on the outside or inside of the groove or the spring side of a channel body can be integrally formed on the tongue or tongue side and at the same time on the spring or groove side of the respective other channel body corresponding, respectively complementary further sawtooth surfaces for forming a latching connection in the joint area of the involved gutter body and thereby securing the butt joint to be made vertically to the longitudinal extent of the connected gutter body.

In a preferred embodiment can be used as a seal or as between the channel bodies inserted sealing element a foam rubber or moss rubber-like profile seal.

In a particularly advantageous embodiment, the solution according to the invention can be used in conjunction with plastic troughs, which are produced in an injection molding process. In this case, the connecting elements according to the invention to the already existing tongue and groove connection, so the additional locking element and complementary thereto holding element and / or the further locking element directly in the manufacture of the channel body in the tool used in this context can be considered that through the additional fasteners are no or almost no additional production costs caused. At most, in addition, the above-mentioned profile seal must be incorporated later, but this can also be realized very inexpensively in the context of an automated manufacturing step.

In this case, the solution according to the invention can of course also be realized in conjunction with gutter bodies, which are made of non-yielding materials, in particular concrete or polyester concrete, in which case the additional connecting elements by means in the groove and / or spring area additionally inside and / or outside applied plastic inlays are inexpensive to implement.

The invention will be explained in more detail below by way of example with reference to the exemplary embodiments illustrated in the drawing, without the invention being restricted to the exemplary embodiments.

Figur 1

Eine geöffnete Stoßverbindung zwischen zwei Rinnenkörpern in einer perspektivischen Ansicht,

Figur 2

eine vergrößerte Detailansicht, der in Figur 1 gezeigten Stoßverbindung in geschlossenem Zustand,

Figur 3

eine in Figur 2 mit III-III bezeichnete Schnittansicht der in Figur 2 gezeigten geschlossenen Stoßverbindung in vergrößerter Darstellung,

Figur 4

eine in Figur 2 mit IV-IV bezeichnete Querschnittsansicht der geschlossenen Stoßverbindung in vergrößerter Darstellung,

Figur 5

eine in Figur 2 mit V-V bezeichnete weitere Längsschnittansicht der geschlossenen Stoßverbindung,

Figur 6

eine alternative oder zusätzliche Ausgestaltung einer geöffneten Stoßverbindung zwischen zwei Rinnenkörpern in einer perspektivischen Ansicht,

Figur 7

a) bis d): Die in Figur 6 gezeigte Stoßverbindung in einer Seitenansicht in den unterschiedlichen Stufen der Ausbildung der Verbindung von einer geöffneten Verbindung bis hin zu einer geschlossenen Stoßverbindung,

Figur 8

die in Figur 7d) mit VIII-VIII bezeichnete Querschnittansicht in einer vergrößerten Detailansicht und

Figur 9

die in Figur 7d) mit IIX-IX bezeichnete Längsschnittansicht in einer vergrößerten Detailansicht.

Show it:

FIG. 1

An open butt joint between two gutters in a perspective view,

FIG. 2

an enlarged detail view in FIG. 1 Shock connection shown in the closed state,

FIG. 3

one in FIG. 2 III-III sectional view of the in FIG. 2 shown closed butt joint in an enlarged view,

FIG. 4

one in FIG. 2 with IV-IV cross-sectional view of the closed butt joint in an enlarged view,

FIG. 5

one in FIG. 2 with VV further longitudinal sectional view of the closed butt joint,

FIG. 6

an alternative or additional embodiment of an open butt joint between two channel bodies in a perspective view,

FIG. 7

a) to d): The in FIG. 6 shown in a side view in the different stages of the formation of the connection from an open connection to a closed butt joint,

FIG. 8

in the FIG. 7d ) with VIII-VIII designated cross-sectional view in an enlarged detail view and

FIG. 9

in the FIG. 7d ) with IIX-IX longitudinal section view in an enlarged detail view.

FIG. 1 shows in a perspective view an open butt joint between two channel bodies 1, 2, wherein the one channel body 1 is formed in the joint area as a groove side, while the other channel body 2 is formed in the joint area as a spring side. For this purpose, one channel body 1 has a groove web 3 projecting in the direction of the adjoining other channel body 2 and running over the entire profile of one channel body 1, while the other channel body 2 also has a groove profile over the entire channel profile has in the direction of a channel body 1 projecting spring bar 4.

In this case, the spring bar 4 is provided with a circumferential projecting edge 5, which engages in the joining of the two channel body 1 and 2 in a corresponding circumferential groove 6 of the Nutstegs 3. When the tongue and groove connection is closed, a pull-out protection of the butt joint in the longitudinal direction of the two interconnected channel bodies 1, 2 is effected. In addition, two protruding locking elements 7 are integrally formed on the spring bar 4 on the outer circumference on the outer circumference, which are engageable with two corresponding with the locking elements 7 recesses 8 of Nutstegs 3 in such a way that an additional backup of the butt joint of the two involved gutter body 1, 2 vertically to the longitudinal extent of the two channel body 1, 2 is effected.

Incidentally, in the region of the frame, a retaining pin 10 is formed on the front side on both sides, spaced apart from the outer circumference of the spring bar 4. When the butt joint is closed, the retaining pin 10 engages over the outer circumference of the Nutstegs 3 on both sides and thus presses it against the inner spring bar 4 and thus ensures secure securing of the connection transversely to the longitudinal extent of the involved channel body 1 and 2.

FIG. 2 shows the closed butt joint in a side view. The in FIG. 2 designated longitudinal section through the closed butt joint of the two involved gutter body 1 and 2. According to the enlarged view in FIG. 3 engages in the closed position of the retaining pin 10 the Nutsteg 3 and presses it to the adjacent spring bar 4 and thus locks it in position transversely to the longitudinal extent of the two participating channel body 1 and 2. It engages in this closed connection over the outer circumference of the spring bar 4th projecting locking element 7 in a corresponding recess 8 of the Nutstegs 3 of a channel body. 1

In an in FIG. 2 with III-III enlarged longitudinal sectional view shows FIG. 3 how the retaining pin 10 engages over the groove web 3 lying in the connecting position and presses against the adjoining outer circumference of the spring web 4. As can also be seen from this view, engages the locking element 7, which projects beyond the spring bar 4, in a recess 8 of the adjacent Nutstegs 3 and thereby secures the butt joint in the vertical direction to the longitudinal extent of the participating channel body 1, 2nd

In a likewise enlarged and in FIG. 2 IV-IV cross-sectional view, which in FIG. 4 is shown again, as the over the spring bar 4 projecting locking element 7 engages in the recess 8 of the Nutstegs 3. In addition, this view shows how the peripheral edge 5 of the spring bar 4 engages in the corresponding groove 6 of the Nutstegs 3.

FIG. 5 shows in a likewise enlarged view the in FIG. 2 with VV labeled longitudinal section. In this view, it is particularly clear how the peripheral edge 5, which protrudes over the outer circumference of the spring bar 4 engages in the circumferential groove 6 of the spring bar 4, so that in the connecting position of the involved channel body 1, 2 a pull-out protection of the channel body 1, 2 in the direction of the longitudinal extent is given. In addition, the view shows FIG. 5 the integrally formed on the Nutsteg 3 retaining pin 10th

In the FIGS. 1 to 5 Thus, a connection of two channel bodies 1, 2 is shown, which is ultimately secured in all three spatial axes, namely on the one hand by the tongue and groove connection, which is produced by the peripheral edge 5, which engages in the circumferential groove 6, as well By engaging in the recess 8 locking element 7 and by securing the in the connecting position the spring bar 4 cross-Nutsteg 3 in its connecting position securing retaining pin 10. In addition, in the circumferential groove 6 a common profile seal, in the FIGS. 1 to 5 not shown, inserted and thereby be made a further improved sealing of the butt joint.

An alternative embodiment of the abovementioned abutment connection between the two channel bodies 1 and 2 is shown in a perspective view in FIG FIG. 6 as well as in the following FIGS. 7 to 9 shown. In this case, identical elements of this connection are denoted by identical reference numerals. Accordingly, the one gutter body 1 is provided with a protruding in the direction of the other channel body 2 Nutsteg 3, in the intended purpose, a spring bar 4 of the adjacent channel body 2 engages such that the projecting over the spring bar 4 circumferential edge 5, preferably with the interposition of a in FIG. 6 seal not shown, engages in the groove 6 of the Nutstegs 3.

In the connecting position of the two channel body 1, 2 overlaps again on both sides in each case a retaining pin 10, the upper edge of the spring bar 4 encompassing Nutstegs 3 and pushes it in the connecting position to the inner spring bar. 4

In addition, on the outside of the spring bar 4, two sawtooth elements 11 provided with a corresponding profiling, which interacts with two corresponding further sawtooth elements 12 of the mortise web 3 such that the corresponding profiles of the sawtooth elements 11 and 12 are pushed into one another such that when the connection is closed Solution of the connection is effectively prevented vertically to the longitudinal extent of the involved gutter body 1 and 2. Due to the interaction of the two sawtooth elements 11 and 12, an additional contact pressure between the channel bodies 1 and 2 involved is additionally produced in the vertical direction, which ensures a further sealing of the butt joint between the two channel bodies 1 and 2.

The abutment described above is from its open position to its closed position in the FIGS. 7a) to 7d ) is shown in a partially reproduced side view. It shows Figure 7a ) a fully open connection in a situation in which the two channel body 1 and 2 are more or less completely offset from each other in the vertical direction, wherein in this position, the two sawtooth elements 11 and 12 are still in no interaction. Incidentally, in this situation, not even the circumferential edge 5 in engagement with the circumferential groove 6 of a channel body 1. In the installation situation according to FIG. 7b ) is already made on the circumferential edge 5 and the circumferential groove 6, a first engagement of the two channel body to be connected 1 and 2, wherein the two sawtooth elements 11 and 12 already adjacent to each other but are not yet engaged.

In FIG. 7c ), the butt joint between the channel bodies 1 and 2 involved is largely closed and the two sawtooth elements 11 and 12 are almost completely interlocked with each other. Incidentally, the upper edge of the spring web 4 cross-Nutstegs 3 begins with the in the connecting position the Nutsteg 3 cross and pressing retaining pin 10 to engage. FIG. 7c Finally, shows the fully closed butt joint between the involved gutter bodies 1 and 2, in which situation the sawtooth elements 11 and 12 involved completely overlap each other and thus engage each other. In this position, the retaining pin 10 pushes the web 4 cross-Nutsteg 3 to the spring bar 4 and thus increases the contact pressure of the tight connection in the transverse direction to the longitudinal extent of the participating channel body 1 and 2.

FIG. 8 shows the closed butt joint according to FIG. 7d ) in a longitudinal section, designated VIII VIII in FIG. 7d). In this position, as already mentioned, the retaining pin 10 connected to the other channel body 2 in the frame area overlaps on both sides the groove web 3 which overlaps the spring web 4 on the outside.

In addition, the closed butt joint according to FIG. 7d ) also in the in FIG. 7d ) with IX IX cross-sectional view shown. As can be seen from the cross-sectional view, the circumferential edge 5 of the spring bar 4 engages in the circumferential groove 6 of the Nutstegs 3, while simultaneously also involved in the connection sawtooth elements 11, 12 secure the connection in a direction vertical to the longitudinal extent of the involved gutter body 1 and 2 , Again, the tightness of the connection can be increased by the fact that in the circumferential groove 6, a sealing profile, which is not shown in the drawing, is inserted and caused by the contact pressure of the connection described an at least substantially complete sealing of the butt joint.

The above thus described the formation of a butt joint between two substantially identical channel bodies, which in contrast to the prior art in at least two, preferably three conceivable orthogonal directions of movement is secured and largely or completely by the contact pressure caused thereby and / or an additional seal is sealed, wherein at least in the case of production of the gutter body in the injection molding, the additional locking elements can be considered within the injection mold, so that the improved seal can be effected without additional sealing measures and largely without additional production costs. Even in the case of concrete gutters can be achieved by appropriate Kunststoffinlays in a simple manner, the above-described improved sealing.

LIST OF REFERENCE NUMBERS

• 1 a gutter body
• 2 other gutter bodies
• 3 Nutsteg
• 4 spring bar
• 5 circumferential edge
• 6 circumferential groove
• 7 locking element
• 8 recess
• 10 retaining pins
• 11 a sawtooth element
• 12 other sawtooth element

Claims (6)

1. A drainage channel, comprising two channel bodies (1, 2) which are arranged adjacent to each other in the installation position and which are connected to each other by forming a sealing system for sealing the abutment region between said channel bodies (2, 3), wherein the face end of the one channel body (1) is formed as a groove side and the face end of the other channel body (2) is formed as a tongue side, and said channel bodies (1) are connected to each other in the abutment region by a tongue-and-groove connection as the first locking element, and at least one retraction protection means of the abutment connection is thus produced between the two channel bodies (1, 2) in the horizontal direction, i.e. in the direction of the longitudinal extension of the channel bodies (1 2), characterized in that at least one locking element (7) of the other channel body (2) can be connected in a latching manner in addition as a second locking element to at least a respectively corresponding recess (8) of the one channel body (1) on the groove side, and the securing of the tongue-and-groove connection of the two channel bodies (1, 2) in the installation position vertically to the longitudinal extension of the mutually connected channel bodies (1, 2) can thus be produced, wherein the channel bodies (1 2) which are involved in the connection are respectively integrally formed with their locking means (7, 8, 10) and in addition a retaining pin (10), which is respectively integrally attached to both sides of the other channel body (2), engages in the installation position about the outer circumference of the adjacent channel body, and thus produces as the third locking element a securing of the connection transversely to the longitudinal extension of the channel bodies (1, 2) involved in said connection, wherein a pressing pressure can be produced by means of the second and third locking elements (7, 8, 10) vertically to the longitudinal extension and transversely to the longitudinal extension of the channel bodies (1, 2) involved in the connection, and an at least approximately tight connection of the involved channel bodies (1, 2) can thus be produced.
2. A drainage channel according to claim 1, characterized in that the tongue-and-groove connection between the two channel bodies (1, 2) is formed by interposing a sealing profile.
3. A drainage channel according to one of the preceding claims 1 or 2, characterized in that on the groove or tongue side one or several sawtooth elements (11) are integrally formed on the outer or inner side of the groove or tongue side, and corresponding, respectively complementary, further sawtooth areas (12) are produced on the tongue or groove side of the respective other channel body (2) for forming a latched connection in the abutment region of the involved channel bodies (1, 2), and a securing of the abutment connection vertically to the longitudinal extension of the connected channel bodies (1, 2) is thus produced.
4. A drainage channel according to claim 2, characterized in that the sealing profile is formed as a soft profile seal, preferably sponge rubber or sponge-rubber-like.
5. A drainage channel according to one or several of the preceding claims, characterized in that the channel bodies (1, 2) are made of plastic, preferably of PP or recyclate, especially by means of an injection-moulding method.
6. A drainage channel according to one or several of the preceding claims 1 to 4, characterized in that the channel bodies (1, 2) are made of hard materials, especially concrete or polyester concrete, wherein in the abutment region on the groove and/or tongue side plastic inlays are incorporated on the inside and/or outside with the corresponding connecting elements according to the preceding claims, and the abutment connection of the involved channel bodies (1, 2) is produced by means of said plastic inlays.

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