EP1689943A1

EP1689943A1 - Fixing device

Info

Publication number: EP1689943A1
Application number: EP04790108A
Authority: EP
Inventors: Markus Blaschke
Original assignee: ACO Severin Ahlmann GmbH and Co KG
Current assignee: ACO Ahlmann SE and Co KG
Priority date: 2003-10-07
Filing date: 2004-10-04
Publication date: 2006-08-16
Also published as: WO2005035889A1; DE10346586A1; RU2327841C2; DE10346586B4; US20070122237A1; RU2006115174A

Abstract

The invention relates to a fixing device (1) for a cover (7) that can be placed on an upper edge of a channel body (2) or run-off box or the like that can be embedded in the ground, said cover pertaining to a drainage channel, a road or yard gully or other such surface drainage devices. The inventive fixing device comprises first fixing elements (10a) for fixing to the cover and second fixing elements (20a) for fixing to the body (2) to be embedded in the ground. Respectively the first fixing elements and the second fixing elements can be snapped together in order to hold the cover (7) on the body (2). The aim of the invention is to improve one such fixing device in such a way that the cover can be securely blocked and easily handled, and is positioned in an optimised manner. To this end, the first fixing elements and/or the second fixing elements have at least one damping section (26, 26') with a contact surface (21, 21') between the cover and the body that can be embedded in the ground, maintaining the blocked cover at a distance from the upper edge (6) of the body.

Description

fastening device

description

The invention relates to a fastening device for a cover of a drainage channel, a street or yard drain or the like surface drainage devices which can be placed on an upper edge of a channel body, drain box or the like body which can be installed in the floor according to the preamble of claim 1.

Surface drainage systems are used in industrial as well as in public or private areas to drain rain, dirt, cleaning water or environmentally hazardous liquids. When draining roads, parking lots or pedestrian zones, for example, the surface drainage systems must be able to absorb high static and dynamic loads. The decisive factor is therefore the attachment and storage of the cover on the body that can be installed in the ground, so that in particular the traffic safety of the surface drainage device, in particular that of the cover, is ensured.

The general problem with such fastening devices lies, in particular, in the case of dynamic loads caused, for example, by driving over the cover at high speed, that on the one hand the cover is held in its position on the body which can be installed in the ground, and at the same time uncoordinated evasive movements of the cover and a resulting traffic hazard or noise pollution should be avoided. On the other hand, the cover should be locked in such a way that it can be easily removed and reinserted in order to be able to carry out any maintenance and cleaning work quickly and easily. In addition, it must be ensured that the high contact pressure between the cover and the body prevents material fatigue in the surface drainage device.

DE 195 45 131 AI shows fastening devices for a cover, in each of which a fastening bolt on the cover engages in a fastening means of a channel body. After being locked, the cover lies on an upper edge of the Channel body. The locking and removal of the cover is very complex here, because each fastening bolt must be screwed individually to the channel body or released from it. In addition, impulse-like loads on the cover are absorbed by the cover and channel body alone, which can easily lead to material fatigue, at least in partial areas of the surface drainage device.

From DE 202 00 509 a device for locking a cover grate on drainage or drainage channels is known, in which the cover rests on an upper edge of the channel body after it has been locked. The fastening device shown there allows the cover to be quickly locked onto the channel body, but requires an extremely complex arrangement. Again, as already mentioned above, impulsive loads on the cover have to be absorbed only by the cover and the channel body. The surface drainage system is subjected to excessive stress, so that material fatigue sets in.

The invention is based on the object of developing a fastening device for a cover of a drainage channel, a street or yard drain, or similar surface drainage devices that can be placed on an upper edge of a channel body, drain box or similar body that can be installed in such a way that a safe, easy-to-use locking device the cover is achieved with its optimized storage.

This object is achieved by a fastening device according to claim 1.

In particular, the object is achieved by a fastening device for a cover of a drainage channel of a street or yard drain or similar surface drainage devices which can be placed on an upper edge of a gutter body, drain box or the like body, with first fastening elements on the cover and second fastening elements on the body which can be installed in the floor, the first and the second fastening elements being able to be brought into snap engagement with one another for holding the cover on the body, the first fastening elements and / or the second fastening elements in each case have at least one damping section with a contact surface between the cover and the body which can be installed in the floor, so that the locked cover is spaced from the upper edge of the body.

An essential point of the invention is that the fastening elements simultaneously serve as damping elements between the cover and the body which can be installed in the floor, the damping elements being formed on the upper edge of the body which can be installed in the floor and / or on the cover in order to make direct contact between the top edge and the cover. A kinetic energy introduced into the surface drainage device by dynamic loading is converted into potential energy by the latter and is released again as kinetic energy by reversing the direction of movement. A damping material introduced into the surface drainage device also absorbs energy, so that the energy given off by the device is substantially less than that introduced. This reduces impulsive impacts and the associated uncoordinated movements of the cover because the movement speed of the cover is specifically reduced. Rattling noises are also dampened. In addition, a high contact pressure between the cover and the upper edge of the body is balanced both by the damping material and by the possibility of the cover being able to escape; H. Material fatigue in the surface drainage system is prevented.

Preferred developments of the invention are specified in the subclaims.

Thus, in a preferred embodiment, the damping section is designed as a protrusion relative to the level of the upper edge of the body in each case on the second fastening elements serving to lock the cover over its first fastening elements, the protrusion extending in a direction perpendicular to the direction of extension of the The upper edge extends. The advantage here is the simple construction and thus an inexpensive manufacture of the fastening elements integrated into the body. The fastening elements are only extended at a height perpendicular to the direction of extension of the upper edge and fulfill the purpose of an optimized storage of the cover in a very simple manner with a simple locking at the same time. In a further preferred embodiment it is provided that the damping section is designed as an overhang relative to the level of a side of the cover facing the body that can be installed in the floor as an integral part of the first fastening element. The first element divides the protrusion, so that two protrusions are ultimately formed on the first element. The protrusions then extend in the direction of extension of the body that can be installed in the floor in such a way that they rest at least on the second fastening element. Advantageously, the protrusion on the first fastening element can be extended as desired in the direction of extension of the body, so that it rests on the upper edge or the frame of the body beyond the second fastening element. This is advantageous if a high damping effect is to be achieved with high loads on the surface drainage device.

Alternatively, it is possible to attach the damping sections to both the first fastening element and the second fastening element. In addition to the damping effect, the interaction of the protrusions is advantageous, so that they are exposed to less wear.

The protrusion can preferably protrude 1 to 2 mm beyond the upper edge of the body and / or beyond the side of the cover facing the body. So with possible

An optimized storage of the cover is provided with very little material and thus low manufacturing costs.

The first and / or the second fastening elements are each made of elastic material, such as Spring steel or an elastomer. This easily absorbs shocks and vibrations and dampens rattling noises when the cover is passed over.

In a further advantageous embodiment, the first and the second fastening elements are each captively formed in the body that can be installed in the floor or on the cover. For example, the second fastening elements are cast or glued into the body. Thus, an extremely low-cost mounting option ^'of the elements is guaranteed. However, it is also possible, in particular, to introduce the second fastening element into the body in such a way that it is captive, but can nevertheless be replaced, for example in the event of wear. For this purpose, both the prefabricated channel body and the frame have recesses which are accessible from a channel center and into which the fastening element can be inserted. In order to guarantee that the fastening element is held securely, especially when the cover is removed, the element can advantageously be formed with projections which protrude laterally from the element, face one another, point in opposite directions and each extend in the direction of the channel body. The projections are preferably arranged such that they are clearly spaced from the upper edge when the fastening element is inserted. If, in particular, the recess of the channel body essentially corresponds to the shape of the fastening element, the projections are covered by the channel material lying above it in such a way that the element cannot be taken away when the cover and the associated vertical pull-out forces are removed and remains in the body. Secure captive locking of the cover on the body is also ensured by captive mounting of the fastening elements, because in addition to the vertical pull-out forces, horizontal displacement forces can be absorbed via the engaged fastening elements. In addition, the elements cannot be lost during installation and during repair or maintenance work on the surface drainage device.

Preferably, the first and the second fastening elements are each essentially complementary to one another. For this purpose, for example, the second fastening elements are cuboid and accordingly each have two opposite side walls, a front wall, a rear wall opposite the front wall, an upper wall and a lower wall opposite the upper wall. The front wall of the second fastening element extends parallel to the direction of extension of the body which can be installed in the floor and faces the center of the channel body. The side walls extend transversely to the direction of extension of the body which can be installed in the floor. To receive the first fastening element, the cuboid fastening elements each have a cavity which is accessible from at least one side of the cuboid. Via one on the top wall of the second attachment opening, the first fastening element engages in the cavity. For this purpose, the first fastening element is, for example, cone-shaped. Ideally, the first and the second fastening elements then interlock so that the first fastening elements each lie in the second fastening elements and the cover can be locked in a space-saving manner. At the same time, the first fastening elements are protected in the second fastening elements.

The solution according to the invention provides that the first peg-shaped fastening elements and the second fastening elements having the cavity each have at least one nose-shaped projection. The respective first fastening elements can then be brought into engagement with one another via the projections, in particular snap-fit, because the first and / or the second elements are each made of flexible material. Preferably, the first and second fasteners are each made of materials of different hardness. The at least one nose-shaped projection of the first fastening element must overcome the at least one nose-shaped projection of the second fastening element, so that the first fastening element is then locked in the cavity in the second element. Because the at least one projection of the second fastening element then covers the at least one projection of the first fastening element, the first fastening element and thus the cover are held in their locked position. For this purpose, it is necessary that the at least one nose-shaped projection of at least one fastening element or the entire fastening element is flexibly deformable and is therefore made of elastic material, for example spring steel or an elastomer. However, the hardness of the material is to be determined in such a way that the vertical pull-out forces acting on the cover are counteracted due to the higher rigidity of a fastening element compared to the further fastening element in engagement with it.

A particularly simple and inexpensive embodiment for the respective second fastening elements can be achieved by means of projections in the form of rods. The rods protruding into the cavity of the fastening device are preferably rigid and snap-fit with flexible first fastening elements. bar, these each having, for example, recesses for receiving the rods when the cover is locked.

In an advantageous embodiment, a first nose-shaped projection is arranged inside the second fastening element in each case to form a clamp opposite a second nose-shaped projection. This configuration allows a particularly secure and yet simple locking of the cover over its first fastening element, because the clip largely encloses the engaging fastening element.

Alternatively, only one nose-shaped projection is provided within a fastening element for engaging in the complementary fastening element and, for example, a fastening element located in a further body wall opposite the wall of the body is formed with an oppositely directed nose-shaped projection. This would result in a material-saving, more cost-effective and, in particular, sufficiently secure locking mechanism for a surface drainage device designed for low force. This embodiment is particularly simple and inexpensive to manufacture.

Advantageously, the at least one nose-shaped projection in the respective fastening element extends parallel to the direction of extension of the body that can be installed in the floor, ie. H. along the back wall of the fastener. An entire length of the respective fastening elements in the extension direction of the body which can be installed in the floor can thus be used to form the nose-shaped projection or the fastening elements can be of any length, so that in particular high forces acting on the surface drainage device can be absorbed when the cover is locked.

Alternatively, the at least one nose-shaped projection extends transversely to the direction of extension of the body which can be installed in the floor, ie along one of the side walls of the fastening element. This also enables a secure, space-saving and simple locking of the cover on the body which can be installed in the floor. In a further preferred embodiment, the first fastening elements are each flat. This enables the fasteners to be manufactured easily and ensures optimal snap engagement in the complementary fasteners.

Furthermore, it is provided as one of the preferred embodiments that the damping section is formed as an integral part of the first fastening element, wherein a height of the first fastening element is dimensioned perpendicular to the direction of extension of the body that can be installed in the floor in such a way that the first fastening element is on a Bottom of the cavity of the second fastener rests and one

The locked cover can be spaced from the upper edge of the body which can be installed in the floor. Advantageously, this construction is easy to accomplish and simple and inexpensive to produce a fastening element with the desired height.

The second fastening elements are advantageously arranged in opposite side walls of the body, preferably directly opposite one another. This ensures easy locking of the cover, the fastening elements are housed in a space-saving manner, so that a free channel cross-section is available. In addition, the fastening elements are hardly accessible for external influences, in particular when the cover is not locked, since they are protected in the side walls of the body.

Alternatively, it is possible to arrange the second fastening elements offset in each case in the opposite side walls of the body. A rattle-free hold of the cover on the body built into the floor is ensured in particular by this offset arrangement of the fastening elements.

For a further device in a preferred embodiment it is provided that the second fastening elements each have at least one opening to a center of the

Have body so that any contaminants in the second fasteners can be ejected especially when inserting the first fasteners into the body. This ensures that there is no contamination in the fixings. fixing elements and make it difficult to lock the cover. This makes cleaning work easier because any contaminants can be rinsed out directly and run off towards the middle of the body.

Exemplary embodiments of the invention are described in more detail below with the aid of figures. Here show:

1 shows a schematic, perspective illustration of a second fastening element installed in a channel body and a corresponding first fastening element in a first embodiment;

FIG. 2 shows a schematic front view of the first and the second fastening element from FIG. 1, the first fastening element being placed on the second fastening element;

Figure 3 is a schematic front view of the first and second fasteners of Figure 1 with the elements engaged with one another;

4 shows a schematic, perspective illustration of a second fastening element installed in a channel body and a corresponding first fastening element in a second embodiment;

5 shows a schematic, perspective illustration of a second fastening element installed in a channel body in a third embodiment;

6 is a schematic front view of a first and a second fastening element in a fourth embodiment;

Fig. 7 is a schematic front view of a first and a second fastening element in a fifth embodiment and 8 shows a schematic, perspective illustration of a second fastening element built into a channel body and a corresponding first fastening element in a sixth embodiment;

In the following description, the same reference numerals are used for the same and equivalent parts.

1 shows a second fastening element 20a and a corresponding first fastening element 10a, which can be received on the second fastening element 20a, of a cover 7 which can be placed on an upper edge 6 of a body 2 which can be installed in the floor. The fastening element 20a is in a wall 3 of a gutter body 2 attached. The element 20a is thus advantageously protected and accommodated in a space-saving manner, so that a free channel cross section is available for the substances to be discharged in the surface drainage device.

The second fastening element 20a is cuboidal and accordingly has two opposite side walls 30, 30 ', a front wall 28, a rear wall 29 opposite the front wall 28, an upper wall 31 and a lower wall opposite the upper wall 31. The front wall 28 extends parallel to the direction of extension of the body 2 which can be installed in the floor and faces a center of the channel body 2. The side walls 30, 30 'extend transversely to the direction of extension of the body 2 which can be built into the floor. The side walls 30, 30', the front wall 28 and the rear wall 29, the upper wall 31 and the under wall define a cavity 23 The first fastening element 10a can be inserted into the cavity 23 on the upper wall 31 of the opening 25a in the second fastening element 20a.

The second fastening element 20a is preferably cast into the channel body 2. An edge protection frame 5 covering the upper edge 6 accordingly has recesses so that the element 20a is accessible. The fastening element 20a is arranged in the channel body 2 in such a way that it projects beyond the upper edge 6, preferably by approximately 2 mm. The fastening element 20a thus has a projection 27, 27 'above the level of the upper edge 6. A cover 7 that has been put on does not hang up directly the upper edge 6 of the channel body 2 or on the frame 5, but on a contact surface 11, 11 ', which extends parallel to the upper edge 6 and is formed by the overhang 27, 27', between the cover 7 and the body 2 which can be installed in the floor serving support surface and is therefore spaced from the upper edge 6. The second fastening element 20a is preferably made of elastic material, for example spring steel or an elastomer, so that the projection 17, 17 'acts as a damping section 26, 26' and the cover 7 is mounted in a damping manner. Shocks acting on the surface drainage device from the outside are thus mitigated and disturbing rattling noises of the cover 7 are avoided.

The second fastening element 20a has two opposing, spaced-apart, nose-shaped projections 22, 22 'which extend into the cavity 23, transversely to the direction of extension of the body 2 which can be installed in the floor, i. H. extend on the side walls 30, 30 'of the second fastening elements. In this exemplary embodiment, the projections 22, 22 'are partially an integral part of the protrusion 27, 27' and extend transversely to the direction of extension of the body 2 which can be installed in the floor, i. H. they are attached to the side walls 30, 30 'of the fastening element 20a.

A second opening 24 is formed on the front wall 28 of the second fastening element 20a in such a way that the cavity 23 is open towards the center of the channel body 2. Any contamination in the fastening element 20a can accordingly be removed directly into the channel body 2.

The first opening 25 and the second opening 24 of the fastener 20a of this embodiment are connected to each other. The rear wall 29 of the fastening element 20a has a third opening 24 ′ connected to the first opening 25 and the second opening 24, so that the fastening element 20a essentially forms a U-shaped arrangement or a clamp for receiving the first fastening element 10a. Accordingly, the projection 27, 27 'has two separate contact surfaces 21, 21'. The nose-shaped projections 22, 22 'adjoin the contact surfaces 21, 21' in the direction of the cavity 23, these being each tapered in the direction of the cavity 23 in order to prevent the first fastening elements 10a due to an increased flexibility of the tapered projections 22, 22 'compared to the remaining area of the second fastening element 20a.

Due to the relatively simple design of the U-shaped fastening element 20a, the cover 7 can be locked in a cost-effective manner and at the same time can be handled simply and efficiently.

Since a width B _{20a of} the fastening element 20a transverse to the direction of extension of the channel body 2 in this case essentially corresponds to a width B _{4 of} the upper edge 6 of the body 2 transverse to its direction of extension, the third opening 24 ′ of the fastening element 20a is through in this exemplary embodiment the frame 5 cast into the body 2 and extending over an outer surface of the wall 3 of the body 2 is closed. The fastening element 20a is therefore advantageously protected on the back against entering soil. The front wall 28 of the fastening element 20a is flush with an inner surface of the wall 3 of the channel body 2. The channel wall 2 accordingly forms, together with the fastening element 20a, a flat surface towards a channel center so that no dirt can settle.

Alternatively, the width B _{20a of} the fastening _element 20a transverse to the direction of extension of the channel body 2 can be smaller than the width B of the upper edge 6 of the body 2 transverse to the direction of its extension. The fastening element 20a would then be surrounded on its rear wall 29 by the channel material, so that the frame 5 can be dispensed with in this area. It would also be possible to also surround the fastening element 20a on its front wall 28 with the channel material. The element 20a would then be completely protected in the channel wall 3. The channel wall 3 would then also expediently have an opening so that any impurities can be rinsed out of the fastening element 20a.

Corresponding to this embodiment of the second fastening element 20a, the first fastening element 10a is formed on the cover 7. The fastening element 10a has a flat, peg-shaped shape and also nose-shaped projections 12, 12 ', so that it can be introduced into the cavity 23 of the second fastening element 20a. Since the width B ₂₀ a of the fastening element ₂₀ a and a width B _{22 of} the projections 22, 22 ′ essentially correspond to the width B of the upper edge 6, a width Bio of the first fastening element 10 a also essentially corresponds to the width B _{4 of} the upper edge 6.

FIG. 2 shows a schematic front view of the first fastening element 10a acting on the second fastening element 20a. The first fastening element 10a thereby lies on the second fastening element 20a without being in engagement with the element 20a. If a force F in the direction of the arrow is transmitted via the two nose-shaped projections 12, 12 'of the first fastening element 10a to the nose-shaped projections 22, 22' of the second fastening element 20a in the direction of a bottom of the cavity 23, the projections 22, 22 'deform elastic so that they are overcome by the projections 12, 12 '. The projections 22, 22 'are accordingly made of elastic material, for example spring steel or an elastomer. This makes it possible to completely accommodate the first fastening element 10a in the cavity 23 of the second fastening element 20a and thus to lock the cover 7 via the fastening elements 10a, 20a (see FIG. 3).

If the first fastening element 10a is rigid, for example on a cast cover, it is preferably cast in the manufacturing process. Alternatively, it is also possible to make the first fastening element 10a elastic. The element 10a is then attached to the cover 7 by a subsequent process. However, the hardness of the material is to be determined in such a way that the vertical pull-out forces acting on the cover 7 are counteracted due to the higher rigidity of a fastening element compared to the further fastening element in engagement with it.

3 shows a schematic front view of the complementary fastening elements 10a, 20a which are in engagement with one another. Because the projections 12, 12 'of the first fastening element 10a in the locked position are covered by the projections 22, 22' of the second fastening element 20a, the first fastening element 10a and thus the cover 7 are held in their locked position. Fig. 4 shows a first fastening element 10b and a second fastening element 20b each in a further embodiment, but similar to that shown above. The fastening element 20b differs from the fastening element 20a in that the openings 24, 25 are formed separately from one another, so that the contact surface 21 formed by the protrusion 27 is designed as a continuous area.

Due to this arrangement, an enlargement of the contact area 21 is realized and any latched-in first fastening element 10b is securely held and guided in the second fastening element 20b. This is particularly advantageous when the surface drainage device is exposed to extremely high loads. So that any impurities can nevertheless be removed into the channel body 2, the opening 24 is explicitly formed in a front wall 28 of the fastening element 20b oriented towards the channel center.

The fastening element 10b arranged on the cover 7 essentially corresponds to the element 10a from FIG. 1. However, the element 10b has a width Biob which is smaller in comparison to the width Bioa of the element 10a. The contact surface 21, which is designed as a continuous region, in fact causes the projections to be shortened, so that the fastening element 10b is adapted to them.

5 shows a second fastening element 20c similar to that previously described. The projection 22 provided for locking here runs parallel to the direction of extension of the body 2 that can be installed in the floor, i. H. it is attached to the rear wall 29 of the fastening element 20c. This has the particular advantage that an entire length L of the cavity 23 in the direction of extension of the body 2 can be used to form the nose-shaped projection 22 or the fastening elements 20c can be of any length, so that in particular high forces acting on the surface drainage device when the cover 7 is locked can be recorded.

1 to 4 show fastening elements 20a, 20b, each with two mutually opposite projections 22, 22 '. Alternatively, it would be possible to have only one protrusion 22 inside of the respective second fastening element (cf. FIG. 5) and, for example, to form the second fastening element located in a further wall of the groove body 2 opposite the groove wall 3 with an oppositely oriented projection 22. This would result in a material-saving, more cost-effective and, in particular, sufficiently secure locking mechanism for a surface drainage device designed for low force. If the first fastening element nevertheless has two projections, one of these projections reaches into the void, but the grate can be placed independently of the first fastening elements. For a material-saving embodiment of first fastening elements, these are also formed with only one projection, which come into engagement with the respective projections of the second fastening element.

In the end, the device shown in FIG. 5 only allows a jump 22 in each fastening element 20c and requires a counter bearing in the channel wall of the body 2 opposite the channel wall 3. Is on the cuboid fastening element 20c an explicit front wall 28, as in the embodiment from FIG. 4, d. H. If the entry opening 25 for the complementary fastening element 10c and the opening 24 designed for the discharge of dirt from the fastening element 20c were separated from one another, a second projection 22 could also be attached here. The projections 22, 22 'could then be long and narrow and thus absorb high forces.

A possible first fastening element (not shown here) corresponding to the second fastening element 20c would have to be in the case of the projection / projections 22, 22 'fastened to the rear wall 29 and / or to the front wall 28 in each case in comparison with the fastening elements 10a, 10b Be rotated 90 ° attached to the corresponding cover 7.

6 shows a front view of fastening elements 10, 20d which are in engagement with one another. The second fastening element 20d is essentially similar to that shown in FIGS. 1 to 3, but in this embodiment it is flush with the frame 5 covering the upper edge 6. To accommodate the fastening element 20d in the wall 3 of the body 2, both the frame 5 and the channel body 2 have extensions recordings, so that the fastening element 20d can be inserted into the channel body 2 and, if necessary, removed again. In this exemplary embodiment, the recess in the channel body 2 is therefore essentially designed to reflect the shape of the fastening element 20d and has, inter alia, grooves 4, 4 ′.

The element 20d has projections 32, 32 'which protrude from the side walls 30, 30', lie opposite, point in the opposite direction and each extend in the direction of the channel body 2. Since the recesses are accessible from the center of the channel, the element 20d can preferably be inserted into the recesses via these. The projections are preferably arranged such that they are clearly spaced from the upper edge when the fastening element is inserted. Since in particular the recess of the channel body essentially corresponds to the shape of the fastening element and the projections engage in the grooves 4, 4 ', the projections are covered by the channel material lying above them in such a way that the element does not when the cover is removed and the vertical pull-out forces associated therewith is portable and remains in the body.

Alternatively, it is possible to cast the fastening elements with the channel body or to glue the element into the prefabricated channel body provided with recesses. Each of these options ensures a secure locking of the cover. In addition, the elements cannot be lost during installation and during repair or maintenance work on the surface drainage device.

In this embodiment, the damping sections 16, 16 'are designed as projections 17, 17' based on the level of a side of the cover 7 facing the body 2 and as an integral part of the first fastening element 10d. The projections 17, 17 'extend in the direction of extension of the body 2 on both sides of the flat first element 10d, so that the projections 17, 17' rest on the second fastening element 20f. Advantageously, the projections 17, 17 'on the first fastening element 10d can be extended as desired in the direction of extension of the body 2, so that they can rest on the upper edge 6 or the frame 5 of the body 2 beyond the second fastening element 20d. This is an advantage if one high damping effect should be achieved with high loads on the surface drainage system.

The fastening element 10d itself is flat and has two nose-shaped projections 12, 12 'and a central recess 14, i. H. it is partially divided. If the element 10d is provided as the rigid element, for example as a molded-in pin, 14 material can be saved through this recess. However, if the element 10d is flexible, an increase in flexibility can be achieved through the recess 14, so that it can be snapped into place, in this case into the complementary second fastening element 20d, simply and easily.

FIG. 7 also shows a front view of fastening elements 10e, 20e which are in engagement with one another. The second fastener 20e is substantially similar to that shown in FIG. In this embodiment, the element 20e is also introduced into the channel body 2 such that it is flush with the frame 5 covering the upper edge 6. However, it is extremely material-saving and simple. The nose-shaped projections 22, 22 are only partially arranged on the respective side walls 30, 30 'of the fastening element 20e, so that a nose extension is spaced apart from the respective side wall 30, 30'.

In this embodiment, advantageously both fastening elements 10e, 20e should be flexible, but the projections 22, 22 'of the second fastening element 20e should be made harder than the projections 12, 12' of the first fastening element 10e. Thus, the first fastening element 10e is easy to insert, since the projections can spring out in the direction of the side walls 30, 30 '. Conversely, the locking is easy to release due to the elastic deformability of the projections 12, 12 '.

In this embodiment, the damping section 16 is an integral part of the first fastening element 10e and / or the second fastening element 20e. A height H of the first fastening element 10e perpendicular to the direction of extension of the body 2 is here dimensioned such that the first fastening element 10e rests on the bottom of the cavity 23 of the second fastening element 20e and a spacing of the locked cover 7 from the upper edge 6 of the body built-in body 2 is achieved. Advantageously, this construction is easy to accomplish, and a fastening element 10 with the desired height H can be produced simply and inexpensively.

8 shows, in a perspective illustration, rod-shaped projections 22 which act as a second fastening element and which, as rigid elements, ensure an extremely simple and inexpensive, but nevertheless secure locking of the cover 7. In this embodiment, the bars 22 are fitted into a frame section perpendicular to the frame section covering the upper edge 6 of the body 2 and therefore extend from the frame 5 in the direction of the center of the channel. The rod-shaped projections are preferably made of V2A steel. A corresponding fastening element 10f is accordingly of hook-shaped design in this embodiment, the rod-shaped projection being able to be received between the sections forming the hooks. A recess 13 is expediently provided for receiving the rod, so that it rests securely when the cover 7 is locked.

In this exemplary embodiment, the damping effect is carried out by the first fastening element 10f. A damping section 16 is realized over the height H of the element 10f, so that the first fastening element 10f rests on the frame 5 covering the upper edge 6 and the locked cover 7 is spaced apart from the upper edge 6 of the body 2. Advantageously, this construction is easy to implement, and a fastening element 10f with the desired height H can be produced simply and inexpensively.

Basically, it is possible to mount damping sections 16, 16 ', 26, 26' both on the first fastening element and on the second fastening element (not shown here). In addition to the damping effect, the interaction of the projections 17, 17 ', 27, 27' is advantageous, so that they are exposed to less wear.

An extremely secure locking can be achieved if a fastening element made of flexible material and the complementary fastening element is rigid. If the mutually complementary fastening elements are of different hardness, but both are flexible, the locking is easier to initiate or to release and thus suitable for - as already mentioned above - surface drainage systems that are exposed to less force and for which frequent removal of the cover can be expected.

At this point it should be pointed out that all the parts described above are viewed on their own and in any combination, in particular the details shown in the drawings, are claimed as essential to the invention. Modifications are familiar to the person skilled in the art.

BezugszeichenHste

1 fastening device

2 channel body 3 wall of the channel body

4 groove 4 ^* groove

5 frames

6 top edge 7 cover

10a, 10b, lOd-lOf First fastening element

11 contact surface

I V contact surface 12 projection

12 'lead

13 recess

14 recess

16 Damping section 16 'Damping section

17 protrusion 17 'protrusion 20a-20f second fastener

21 contact surface

21 'contact surface 22 projection

22 'lead

23 cavity

24 opening 24 'opening 25 opening

26 Damping section 26 'Damping section

27 projection 27 'projection 28 front wall

29 rear wall

30 side wall 30 'side wall

31 Top wall 32 projection

32 'lead

B ₄ width of the upper margin

Bioa, Biob Width of the first fastening element B _20a Width of the second fastening element

B ₂₂ width of the projection

H height of the first fastener

L length of the second fastener

Claims

claims

1. Fastening device (1) for a cover (7) of a drainage channel, a street or yard drain or similar surface drainage devices that can be placed on an upper edge (6) of a gutter body, drain box or similar body (2) that can be installed in the floor, with first fastening elements (10a , 10b, lOd-lOf) on the cover (7) and second fastening elements (20a-20f) on the body (2) which can be installed in the floor, the first fastening elements (10a, 10b, lOd-lOf) and the second fastening elements (20a-20f) can be brought into snap engagement with one another for holding the cover (7) on the body (2), characterized in that the first fastening elements (10a, 10b, 10d-10f) and / or the second fastening elements (20a-20f ) each have at least one damping section (16, 26) with a contact surface (11, 21) between the cover (7) and the body (2) that can be installed in the floor, so that the locked cover corner (7) from the upper edge (6) of the body (2) is spaced.

2. Fastening device according to claim 1, characterized in that the damping section (26) is designed as a protrusion (27) with respect to the level of the upper edge (6) on the second fastening elements (20a-20f), the protrusion (27 ) extends in a direction perpendicular to the direction of extension of the upper edge (6).

3. Fastening device according to claim 1 or 2, characterized in that the damping section (16) as a protrusion (17) based on the level of a body (2) which can be installed in the floor facing side of the cover (7) in each case on the first fastening elements (10a, 10b, 10d-10f) is formed, whereby the projection (17) extends in a direction perpendicular to the direction of extent of the cover (7).

4. Fastening device according to one of the preceding claims, characterized in that the first fastening elements (10a, 10b, 10d-10f) and the second fastening elements (20a-20f) are each irreversibly in the body (2) / on the cover which can be installed in the floor (7) are formed.

5. Fastening device according to one of the preceding claims, characterized in that the first fastening elements (10a, 10b, 10d-10f) and the second fastening elements (20a-20f) are in each case essentially complementary to one another.

6. Fastening device according to one of the preceding claims, characterized in that the first fastening elements (10a, 10b, 10d-10f) are designed as peg-shaped fastening elements.

7. Fastening device according to claim 6, characterized in that the pin-shaped fastening elements each have at least one nose-shaped projection (12).

8. Fastening device according to one of the preceding claims, characterized in that the second fastening elements (20a-20f) each have a cavity (23) for receiving the first fastening elements (10a, 10b, 10d-10f).

9. Fastening device according to one of the preceding claims, characterized in that the first fastening elements (10a, 10b, 10d-10f) and / or the second fastening elements (20a-20f) are elastically deformable.

10. Fastening device according to one of the preceding claims, characterized in that the first fastening elements (10a, 10b, 10d-10f) and / or the second fastening elements (20a-20f) are made of spring steel and / or an elastomer.

11. Fastening device according to one of the preceding claims, characterized in that the second fastening elements (20a-20f) each have at least one nose-shaped projection (22).

12. Fastening device according to claim 11, characterized in that a first nose-shaped projection (22) is arranged to form a clip opposite a second nose-shaped projection (22 ').

13. Fastening device according to one of claims 11 or 12, characterized in that the at least one nose-shaped projection (22) extends parallel to the direction of extension of the body (2) which can be installed in the floor.

14. Fastening device according to one of claims 11 or 12, characterized in that the at least one nose-shaped (22) projection extends transversely to the direction of extension of the body (2) which can be installed in the floor.

15. Fastening device according to one of the preceding claims, characterized in that the first fastening elements (10a, 10b, 10d-10f) are each formed flat.

16. Fastening device according to one of the preceding claims, characterized in that a height (H) of the first fastening element (10a, 10b, 10d-10f) is dimensioned perpendicular to the direction of extension of the body (2) which can be installed in the floor, such that the first fastening element (10a, 10b, 10d-10f) rests on a bottom of the cavity (23) of the second fastening element (20a-20f) and the locked cover (7) is spaced from the upper edge (6) of the body (2) which can be installed in the bottom.

17. Fastening device according to one of the preceding claims, characterized in that the second fastening elements (20a-20f) are each arranged in opposite walls of the body (2), preferably directly opposite one another.

Fastening device according to one of claims 1 to 16, characterized in that the second fastening elements (20a-20f) are each offset in the opposite walls of the body (2).

19. Fastening device according to one of the preceding claims, characterized in that the second fastening elements (20a-20f) each have at least one opening (24) towards a center of the body, so that any impurities in the second fastening elements (20a-20f) when Inserting the first fastening elements (10a, 10b, 10d-10f) into the body (2) can be ejected.