EP2789755B1 - Grate fixing for drainage channels - Google Patents

Description

The present invention relates to a system with a drainage channel and a cover for securing the cover to the drainage channel.

Such fuses are known in the art. Grates should allow the unimpeded outflow of water into the gutters and from there to a destination, but at the same time be reliably secured against theft or burglary. Especially with gratings for drainage channels, it is important that the grates are reliably secured against unauthorized removal in order to prevent accidents. At the same time, however, a simple authorized removal of the grate, for example, for cleaning, be possible. Furthermore, it is important that such rust is strong enough to carry, for example, the weight of a person or a motor vehicle.

A disadvantage of known grates that they either have a reliable safeguard against unauthorized removal, which usually has a complex mechanism and is difficult to open by authorized persons again; or the fuse is easy to open, but provides only minimal or no protection against unauthorized removal of the grate. In addition, known rust fuses, which provide reliable protection, to open only with a variety of steps, which makes a removal of the grate consuming.

For example, the EP 0 248 427 A2 a system according to the preamble of claim 1 with a drainage channel with a cover which is secured via a backup on the drainage channel. The fuse has a bolt and a strap spring. By turning the bolt, a nut designed as a pressure piece can be set in motion. The pressure piece spreads two projections of the yoke spring, so that the ends of the projections engage in recesses on the drainage channel and the cover is secured to the drainage channel. In this system, however, it may happen that the bolt is unscrewed too far, so that the trained as a nut pressure piece detaches from the bolt and falls into the gutter. From the EP 0 931 885 A2 is a drainage channel with a cover known. To secure the cover a fuse is provided with a rigid bracket, which engages in a recess of the drainage channel, in the bracket connected to the cover latching element can be inserted.

The EP 2 045 407 A1 describes a drainage channel with a cover, on which a biased in the direction of the drainage channel fastening means is provided.

When placing the cover on the drainage channel locks the fastener in a recess of the drainage channel.

In the US 4,883,394 A a fuse is described over which an additional cover can be secured to an existing cover of a drainage channel.

It was therefore the object of the present invention to provide a system with a drainage channel and a cover for securing the cover to the drainage channel, which does not have the disadvantages of the prior art.

The object is achieved with a system according to independent claim 1, wherein the third fastening means in the form of a nut in an opening in the second fastening means is clamped by an additional projection of the second fastening means so that it is captively secured to the second fastening means. Under a drainage channel is to be understood preferably a structure for the discharge of water. Such drainage channels are installed, for example, along roads to avoid a traffic hazard by accumulating on the road water. Particularly preferably, the drainage channel is made of concrete. Most preferably, the drainage channel made of polycarbonate or plastic, in particular made of PVC or polyethylene, or made of a sheet molding compound (SMC), ie in particular a fiber-plastic composite.

For the purposes of the present invention, a cover should preferably be understood to mean an elongated, flat body. Particularly preferably, the cover is made of a metal, in particular steel. Very particularly preferred the cover made of a corrosion-resistant and / or high-strength material, in particular made of stainless steel. Even more preferably, the cover has a small thickness relative to its length and width. Furthermore, it is preferred that the cover deflects at least one hole in order to ensure an unhindered outflow of water through the cover.

The cover preferably has storage means, in particular with the cover integrally manufactured projections and / or projections, with which the cover is particularly form-fitting and particularly preferably flush with her final, can be arranged on the drainage channel. This makes it possible in an advantageous manner that the cover is positioned exactly on the drainage channel and thus accidental slipping and / or tilting can be avoided and / or can not get any foreign body between the cover and drainage channel. Furthermore, it is possible through the flush conclusion that a risk of pedestrians is excluded by tripping and the system according to the invention can be optically unobtrusive integrate into the environment.

Most preferably, the cover has friction means, in particular material protrusions, which are arranged on the surface of the cover and are provided on the cover for increasing the friction, in particular the static friction. Thus, it is advantageously possible, even when wet pedestrians to ensure a secure grip on the cover and thus avoid slipping due to injury.

Preferably, the cover member has a substantially rectangular shape. Particularly preferably, the cover has a circular, elliptical, or other, two-dimensional shape on. Also conceivable are irregular shapes. According to the invention, the first fastening means is a screw. Particularly preferably, the screw has a right-hand thread or a left-hand thread. Most preferably, the screw has an external and / or hexagon head screw head drive. Even more preferably, the screw has a cross or slot or hexalobular or internal serrated or hexagon socket TR or Torx TR screw head drive. It is clear to the person skilled in the art that TR stands for "Tamper Resist", ie manipulation-proof, and that the screw head drives designated in this way have an internal mandrel. As a result, an easy-to-use first fastener is possible that a small

Has space requirements, and yet safe and reliable from the dissolved in the fastened position can be brought. Screws are available in a simple and cost-effective manner as a mass product, which advantageously reduces the production costs of the first fastening means or of the system according to the invention. Furthermore, the backup is easy or cumbersome depending on the selected screw head drive. Thus, a simple adaptation to different security needs is advantageously possible, which allows a particularly versatile usability of the fuse or the system.

Preferably, the fuse has a mounting plate into which the first fastening means is inserted. Particularly preferably, the fastening plate has a depression corresponding to the shape of the screw head. Most preferably, the mounting plate has a screw thread into which engages the first fastening means. As a result, a high modularity of the system can be realized in an advantageous manner, whereby, for example, the maintenance, such as the defect-related replacement of individual fuses, is simplified. In addition, thus, the versatility of the system is advantageously increased. By the screw head shape adapted recess of the mounting plate can be advantageously realized in the fastened position flush termination of the first fastener with the cover, which on the one hand a possible danger to people or motor vehicles is avoided and on the other hand attack points for a possible violent and unauthorized removal of the cover at least be reduced or even completely avoided.

Preferably, the fuse is connected to the cover such that the first fastener is flush with the surface of the cover in the secured position. For this purpose, the cover particularly preferably has a recess adapted to the shape of the first fastening means. As a result, the advantages mentioned above can be realized in an advantageous manner without a separate mounting plate. According to the invention, the second fastening means is made of steel, in particular spring steel. Particularly preferably, the second fastening means is a shaped sheet metal. Most preferably, the second attachment means is formed in profile substantially S-shaped. According to the invention, the second fastening means has at least one projection, preferably two projections, wherein the projection is provided for the positive securing of the cover to the drainage channel. This makes it possible in an advantageous manner to provide a simple and inexpensive to produce second fastening means which is stable and thus a firm connection of Cover with the drainage channel guaranteed. The first projection is preferably arranged in the fastened position substantially parallel to the cover. The projection engages positively and / or non-positively in an undercut of the drainage channel and thereby secures the cover against removal. By providing a second projection arranged in the end region of the first projection, advantageously the wear of the second fastening means can be at least reduced by the frictional engagement with the drainage channel. Preferably, the second projection is smaller than the first projection. Particularly preferably, the second projection is tooth-shaped. As a result, the second fastening means engage in the drainage channel and thus secures the cover even better against removal.

By the bias of the second fastening means, in particular in the direction of the first fastening means, an inhibition of the first fastening means in the fastened position is made possible. Preferably, the bias of the second fastener is provided such that the elastic force exerted by the second fastener on the first fastener is greater in the fastened position than in the released position. In this way, it is advantageously possible that a simple transfer of the first fastening means from the dissolved to the fastened position is made possible and at the same time in the fastened position, the first fastening means is inhibited by the second fastening means, whereby the first fastening means against unintentional (for example by vibrations caused) or deliberate (for example, unauthorized removal of the cover, in particular without suitable tool) actuation is secured. According to the invention, the fuse has a third fastening means, in particular a nut, which is connected to the first fastening means and / or the second fastening means. As a result, an inventive actuation of the first fastening means, in particular in the sense of a transfer from the dissolved to the fastened position, is made possible in an advantageous manner by simple and known means. According to the invention, the second fastening means is designed such that it is provided for securing the position of the third fastening means. For this purpose, the second fastening means on a projection. Most preferably, the second attachment means is at least partially disposed around the third attachment means. This is advantageously a particularly simple backup of the third Fastener (and thus also the first fastener) possible. According to the invention, the third fastening means is designed such that it is provided for securing the position of the second fastening means. As a result, a mutual attachment of all three fastening means is made possible in a simple manner.

Furthermore, the object is achieved by a method for mounting a cover on a drainage channel with a fuse comprising at least the following method steps, wherein in a first step, the cover is brought into the intended position on the drainage channel, wherein in a second step, the first fastening means is brought from the released position in the fastened position, wherein in a third step, the second fastening means for positive and / or non-positive attachment of the cover is actuated with the drainage channel. As a result, a particularly simple method is provided in an advantageous manner, which enables a secure and reliable securing of the cover with the drainage channel.

It is clear to the person skilled in the art that in the first step it is meant in particular that the cover is fitted in the drainage channel, preferably placed on the drainage channel. In this case, the third step is effected by the second step, whereby the third step takes place at least partially simultaneously with the second step. As a result, a particularly efficient method is advantageously provided, in particular since there is no need for an additional method step. In addition, the securing of the removal of the cover from the drainage channel, as well as a securing, in particular in the sense of inhibition, of the first attachment means by the second attachment means is realized by the easy designable operation of the first attachment means in a particularly advantageous manner. Furthermore, particularly advantageously, the fuse is easily reversible by renewed, in particular opposing, actuation of the first fastening means in the sense of a transfer from the fixed to the released position.

Preferably, during the transfer from the released position into the fastened position, the movement of the projection is substantially horizontal, in particular substantially no vertical movement takes place, so that particularly preferably only a frictional connection takes place between the drainage channel and the second fastening means.

Preferably, in the second step for the transfer from the released to the fixed position, a special tool or an Allen wrench or a slot and / or a Phillips screwdriver or a wrench is used. As a result, an actuation of the first fastening means in a particularly simple and proven manner can be realized. Depending on the choice of the first fastening means and thus the tool required for the actuation, the safety of the system can thus be determined. For example, cross and / or slot screwdrivers are widely used. A thus configured first fastening means therefore offers a particularly simple operation with low security. Alternatively, for example, provides a means of a Torx TR screwdriver to be actuated first fastener increased security.

Figur 1

zeigt ein erfindungsgemäßes System gemäß einer ersten beispielhaften Ausführungsform in einer schematischen Detailaufsicht.

Figuren 2a und 2b

zeigen ein erfindungsgemäßes System gemäß der beispielhaften ersten Ausführungsform in einer schematischen Seitenansicht aus zwei verschiedenen Richtungen.

Figuren 3a und 3b

zeigen eine erfindungsgemäße Sicherung gemäß der beispielhaften ersten Ausführungsform in einer schematischen Seitenansicht aus zwei verschiedenen Richtungen.

Figur 4

zeigt eine erfindungsgemäße Sicherung gemäß der beispielhaften ersten Ausführungsform in einer schematischen Aufsicht.

Figur 5

zeigt eine erfindungsgemäße Sicherung gemäß der beispielhaften ersten Ausführungsform in einer schematischen Perspektivansicht.

Figuren 6a und 6b

zeigen eine erfindungsgemäße Sicherung gemäß einer beispielhaften zweiten Ausführungsform in einer schematischen Seitenansicht aus zwei verschiedenen Richtungen.

Figur 7

zeigt eine erfindungsgemäße Sicherung gemäß der beispielhaften zweiten Ausführungsform in einer schematischen Aufsicht.

Figur 8

zeigt eine erfindungsgemäße Sicherung gemäß der beispielhaften zweiten Ausführungsform in einer schematischen Perspektivansicht.

In the following, the invention is based on the FIGS. 1 to 5 explained. These explanations are merely exemplary and do not limit the general inventive concept.

FIG. 1

shows a system according to the invention according to a first exemplary embodiment in a schematic detail supervision.

FIGS. 2a and 2b

show a system according to the invention according to the exemplary first embodiment in a schematic side view from two different directions.

FIGS. 3a and 3b

show a fuse according to the invention according to the exemplary first embodiment in a schematic side view from two different directions.

FIG. 4

shows a fuse according to the invention according to the exemplary first embodiment in a schematic plan view.

FIG. 5

shows a fuse according to the invention according to the exemplary first embodiment in a schematic perspective view.

Figures 6a and 6b

show a fuse according to the invention according to an exemplary second embodiment in a schematic side view from two different directions.

FIG. 7

shows a fuse according to the invention according to the exemplary second embodiment in a schematic plan view.

FIG. 8

shows a fuse according to the invention according to the exemplary second embodiment in a schematic perspective view.

In FIG. 1 an inventive system according to an exemplary first embodiment is shown in a schematic detail supervision. To see only a part of a cover 2 is shown for reasons of clarity. This cover 2 is placed on a drainage channel. For example, the cover 2 is placed on projections of the drainage channel, so that the cover 2 is flush with the drainage channel and / or the surrounding floor level.

For reasons of clarity, no drainage channel is shown in any of the figures. However, those skilled in the art will understand how such a drainage channel can be arranged in any of the illustrated cases. Such a drainage channel is made for example of concrete, polycrete, SMC, PVC or polyethylene and has a semi-circular cross-section. At least in the area in which the cover 2 is to be connected to the drainage channel, the drainage channel undercut, for example in the form of holes or a trench-like depression in at least one section, with respect to the main extension direction, ie the longitudinal direction.

The cover 2 has holes which are elongated according to the exemplary embodiment to allow liquids, especially water, the drainage in the drainage channel. Alternatively, the holes have a different shape, for example a circular shape. Furthermore, the cover 2 on friction 8. These are formed here as material protuberances or -ausformungen the cover 2. Alternatively, the friction means 8 is applied as a coating at least on parts of the surface of the cover 2.

Distributed over the length of the cover 2 a plurality of fuses 1 are mounted, of which a fuse 1 is shown here. In the upper area of the FIG. 1 a hole is arranged, in which also a fuse 1 can be used. In the illustrated plan of the fuse 1, a first fastener 3, here a screw 3, and a mounting plate 6 visible. The screw 3 has a screw head, which is formed flat on the side facing away from the cover 2 side. Here, the screw head has a hexagonal screw head drive, ie it has a recess with a hexagonal cross-section, in which a hexagonal tool can be used to the Loosen or tighten screw 3. Alternatively, other screw head drives are possible, for example, well-known cross or slot drives, even more unusual drives such as a Torx TR drive.

Furthermore, the fuse 1 has a mounting plate 6, through which the screw 3 is guided. The mounting plate 6 fits positively into the corresponding holes of the cover 2. Alternatively, the fuse 1 no such mounting plate 6, instead, the screw 3 is placed directly in a corresponding hole in the cover 2. In the illustrated embodiment, the mounting plate is positively, positively, and / or materially connected to the cover, for example, welded.

In the FIGS. 2a and 2b a system according to the invention according to the exemplary first embodiment is shown in a schematic side view from two different directions. FIG. 2a shows a side view in the longitudinal direction of the cover 2, while FIG. 2b a lateral view in the transverse direction of the cover 2 shows. The cover 2 has on its underside optionally stand-like elements, which serve both for better stackability of a plurality of covers 2, as well as a support of the fuse. It is also conceivable that the stand-like elements can be used as feet in lower drainage channels.

The fuse further comprises a second fastening means 4, which is actuated by the screw 3 and with the drainage channel securing, in particular positive and / or non-positive, cooperates. The second fastening means 4 is inventively formed as a bent and biased piece of spring steel sheet. According to the illustrated embodiment, the second fastening means 4 on a projection 7, the main extension plane in the drawing has obliquely to the bottom left. Furthermore, the second fastening means 4 on the drainage channel facing the end of the projection 7 has a further projection 7 '. Both projections 7, 7 'are integrally formed as bends with the second fastening means 4.

For clarity, here the screw 3 and thus also the second fastening means 4 are shown in a released position. In this position, the fuse 1, in particular the second fastening means 4, out of engagement with the drainage channel and the cover 2 can be removed from the drainage channel, so for example lifted off, are. On the contrary, a removal of the cover 2 in a fastened position is not possible. In the fastened position, the screw 3 is screwed maximum in the cover 2, wherein the second fastening means 4 of the screw is bent against its bias such that the projection 7 and / or the further projection 7 'is positively and / or non-positively connected to the drainage channel. If the fuse 1, in particular the screw 3, transferred from the fixed to the released position, the second fastening means will return due to its bias back to its original position, so are out of engagement with the drainage channel. The fuse 1 is transferred with a screwdriver from the dissolved in the fastened position, or vice versa. In the fastened position, the second fastening means 4 cooperates due to its bias in such a way with the screw 3, that due to a frictional actuation of the screw 3 in both directions (ie from the dissolved in the fastened and vice versa from the fixed to the released position ) is difficult. The screw 3 is inhibited.

In the FIGS. 3a and 3b a fuse according to the invention according to the exemplary first embodiment is shown in a schematic side view from two different directions. For reasons of better understanding and clarity, no thread is shown on the screw 3. However, it will be apparent to those skilled in the art that the screw 3 has left or right hand threads, the thread being metric or imperial. The screw 3 has on the cover 2 side facing a frustoconical screw head which engages positively in the fastened position in the mounting plate 6 or in the cover 2; such that the screw is flush with the cover 2. In the embodiment shown, the fuse 1 further comprises a third fastening means 5, here a nut 5, which is arranged on the underside of the fastening plate 6 and below the second fastening means 4. Since the nut 5 has a thread and thus holds the screw 3, no thread in the mounting plate 6 and / or the cover 2 is necessary. It is nevertheless conceivable that in addition the second fastening means 4 and / or the fastening plate 6 have a thread.

As in FIG. 3b illustrated, the second fastening means 4 has an opening into which the nut 5 at least partially engages and is thus secured against rotation. The second fastening means 4 has an additional projection, so that the nut 5 is clamped by the second fastening means 4. Accordingly, the nut 5 clamps the second attachment means 4 between itself and the attachment plate 6 or the cover 2, connected by the screw 3. In addition, the nut 5 secures the screw 3 so that it is substantially only between the released and the fixed position and is inversely movable. Further, the nut 5 is again held by the second fastening means 4 and thus secured. If the screw 3 is now screwed in, so transferred from the dissolved in the fastened position, so it bends the second fastening means 4 thus against its bias to the outside, ie the drainage channel to and away from the screw 3, so that the projections 7, 7 'in a corresponding opening, or partial opening engage the drainage channel form-fitting and optionally also non-positively. In FIG. 3b is further seen that the projection 7 is bent in such a way that a further projection 7 'is formed, which according to the illustrated first embodiment, two tine and / or tooth-shaped elements having an additional positive and / or adhesion with the drainage channel enable.

In FIG. 4 a fuse according to the invention according to the exemplary first embodiment is shown in a schematic plan view. In essence, this illustration corresponds to a detail of FIG. 1 , It can be seen the mounting plate 6 and the screw head of the screw 3. It can be clearly seen that the screw 3 has a Allen drive, so an approach for a hexagon socket.

In FIG. 5 a fuse according to the invention according to the exemplary first embodiment is shown in a schematic perspective view. In essence, the representation corresponds to a perspective view of the in the FIGS. 3a and 3b In particular, the projections 7, 7 'clearly visible and adapted to the screw head shape recess of the mounting plate 6 and the openings on both sides of the second fastening means 4 for securing the nut fifth

In the Figures 6a and 6b is a not falling under the invention fuse 1 shown in a schematic side view from two different directions. This fuse does not fall under the wording of the independent claim, since the second attachment means 4 does not have an additional projection, the system does not require a mounting plate 6, but may have, and the first and second projections 7, 7 'are formed such that the second, or further projection 7 'is arranged in the released position substantially parallel to the cover. As a result, during the transition from the released into the fastened position, essentially a movement takes place parallel to the cover and thus to the upper side of the undercut, so that only a frictional connection occurs.

In the FIGS. 7 and 8 further views of this non-inventive fuse are shown. The second fastening means 4 preferably has a thread, which is not shown here for reasons of clarity. As a result, can be dispensed with an additional nut 5. Nevertheless, it is also conceivable that such a nut 5 is provided for additional or alternative fixation. This can be clamped in the second fastening means 4, as it is in particular in FIG. 8 is apparent.

LIST OF REFERENCE NUMBERS

1 -

fuse

2 -

cover

3 -

first attachment means

4 -

second fastening means

5 -

third fastener

6 -

mounting plate

7, 7 '-

head Start

8th -

friction means

Claims (5)

1. System with a drainage channel and a cover (2), wherein the cover (2) is secured to the drainage channel with a securing device (1), wherein the securing device (1) has a first fastening means (3) in the form of a screw and a second fastening means (4), wherein the second fastening means (4) is pretensioned flexibly towards the first fastening means (3), wherein the first fastening means (3) can be transferred from a released position reversibly to a fastened position and the first fastening means (3), in its transition from the released to the fastened state, reversibly transfers the second fastening means (4) to a positive- and/or force-locking position with the drainage channel,
   wherein the securing device (1) has a third fastening means (5) in the form of a nut which is connected to the first fastening means (3) and the second fastening means (4),
   wherein the second fastening means (4) is formed as a bent and pretensioned plate of spring steel and has a projection (7) which is formed as a bent part in one piece with the second fastening means (4),
   wherein the nut (5) wedges the second fastening means (4) between itself and the cover (2), connected by the first fastening means (3), and the nut (5) secures the first fastening means such that it can be moved only between the released and the fastened position and vice versa, wherein, in the fastened position, the first fastening means (3) is screwed into the cover (2) to the maximum extent and the second fastening means (4) is bent by the first fastening means (3) against its pretensioning such that the projection (7) is connected in a positive- and/or force-locking manner with the drainage channel and the first fastening means (3) is restrained characterised in that the second fastening means (4) has an opening into which the nut (5) engages at least partially and is secured non-rotatably, therefore, wherein the second fastening means (4) has an additional projection so that the nut (5) is wedged by the second fastening means (4) and is secured, therefore.
2. System according to any one of the preceding claims, characterised in that the second fastening means (4) has at least one further projection (7') with two dovetail and/or tooth-shaped elements, wherein the further projection (7') is provided for the positive-locking of the cover (2) to the drainage channel.
3. System according to any one of the preceding claims, characterised in that the securing device (1) is connected to the cover (2) such that, in the fastened position, the first fastening means finishes flush with the surface of the cover (2).
4. Method of fitting a system according to any one of the preceding claims, comprising at least the following method steps, wherein, in a first step, the cover (2) is placed in the proper position on the drainage channel, wherein, in a second step, the first fastening means (3) is transferred from the released position to the fastened position, wherein, in a third step, the second fastening means (4) is activated to form a positive- and/or force-fitting fastening of the cover (2) to the drainage channel, wherein the third step is performed by the second step.
5. Method according to claim 4, wherein, in the second step, a special tool or an Allen key or a slotted and/or a Phillips screwdriver or a spanner is used for the transfer from the released to the fastened position.

Images