EP1138832B1 - Safety device for a rainwater gully - Google Patents

Abstract

The device has a channel body with cover and a crossbar fitted into wall apertures. A replaceable blocking clamp is fitted into an aperture in the crossbar and is moveable between installation and blocking positions. Guide (8) and locking legs (9) of the clamp are moveable relative to each other. The locking leg has an angled stop (11) with first and second offset (12,13). The legs are mainly parallel, and the locking leg is positioned slightly behind the guide leg.

Description

The invention relates to a safety device for a Drainage channel according to the preamble of claim 1 as an addition to patent application 198 46 668.4-25.

DE 42 41 707 is a safety device for a Drainage gutter known in which a traverse with its Ends can be inserted into recesses that are located in the inner side walls a gutter.

The traverse runs transversely to the longitudinal axis of the gutter inside the Gutter and includes fasteners to a cover to be attached to the traverse and thereby to the gutter.

The traverse described in DE 42 41 707 has one Clamping device which is so elastically deformable that when inserting them into the recesses in the gutter Deployment movement of the traverse is deformed. The clamping device consists of a clamping spring, which either Plastic or made of a stainless steel band. through such a device, the traverse can simply insert into the drainage channel, it points however, there are serious disadvantages, since such a fastening system is expensive to manufacture, especially because a large plastic part of the gutter is not a plastic part has the necessary strength and uses spring band stainless steel must be, but which is very expensive. Farther requires the geometry of that described in the publication Fastening device a considerable use of material, where also the flow cross-section in shallow channel systems is reduced.

In addition, when installing the traverse in accordance with the DE 42 41 707 described a spring pressure on the Side walls of the gutter exerted, what their stability, in particular with small sizes of the gutter. Ultimately, the exact positioning of the traverse difficult because when you insert this against the growing Spring force of the fastening device must be worked. If the position of the traverse needs to be corrected, so is those for removing the traverse from the recesses of the The gutter force required is much higher than that required for insertion the traverse necessary power.

Furthermore, from German utility model DE 91 16 688 a locking device for holding a drive over Coverage known on a drainage channel, being there Locking parts and a movable locking piece are provided which is a quasi automatic retensioning of the Connection device ensures that a cover grate is held securely on a gutter even when material is deformed or wear and tear.

Finally, EP-A-0 931 885 shows a safety device according to the preamble of claim 1

The object of the present invention is to develop a further Safety device for a drainage channel to provide, on the one hand, the material requirements is reduced and secondly a cheaper material can be used, the flow cross-section continues is not significantly reduced in gutter systems.

This task is accomplished with a device according to the features of claim 1 solved, the subclaims at least practical refinements and developments include.

An essential idea of the invention is that the known traverse effortlessly and without any essential Force application arranged exactly in their predetermined position can be. Only when this has been done will the traverse with the help of a special blocking clip against accidental Loosen fixed. Because the traverse in this process already performed within the recesses of the channel body and / or is held is a change of position during the Fastening process almost impossible.

Another essential aspect of the present invention consists in the design of the blocking element as interchangeable locking clip that is so flexible on the Traverse or tab is attached that a change in position between an assembly and locking position is possible. Depending on the position - installation or locking status - act the tab and the blocking clip latching in this way and / or clamping together that the blocking clip without Activities for deliberate removal of the bracket is captively attached to the tab.

According to the invention, the tab is inexpensively made of stainless steel one due to the advantageous geometry of the tab less material can be produced. Alternatively, the Tab from another, the flowing medium in the Gutter versus inert material.

For attaching the gutter cover is preferred in the tab a recess is provided which is essentially in the middle at the top of the tab when installed located. The cover is attached to the crossbar preferably according to those in DE 42 41 706 and DE 42 41 707 described method. These methods are preferred Embodiment, but other types of attachment, such as. a lateral gripping of the traverse or tab are conceivable.

In the special blocking clip according to the invention, a guide leg and a latching leg are provided, the two legs being movable in their relative position to one another. The locking leg has a run-on slope with a first recess and a second recess spaced apart in the longitudinal direction. The run-on slope slides over the corresponding section of the crossmember, the first recess, which is preferably located immediately behind the run-on slope, causing the clip to snap into the assembly position.
The crossbar can be inserted into the channel body with the clamps in the mounting position and is pivoted into the recesses there. By pushing the blocking clip further into the openings of the tab, a position is then reached such that the tab, which comes through the opening and which extends through the opening, namely the guide leg, blocks the tab against unwanted unscrewing in the channel body.

The aforementioned legs of the blocking clip run in the essentially parallel, the locking leg compared to the Guide leg is reset and has a length that substantially equal to or less than the distance between the legs a U-shaped tab is.

The guide leg has a stepped cross section correspondingly shaped to an extension or a nose Openings in the tab so that the locking clip only in a certain direction alternately oriented in the respective ends of the tab can be inserted.

The guide leg itself is relatively rigid and at one end arched, forming the locking leg, the arcuate section connecting the legs elastic Has property. The elasticity means that the Insert the blocking clip into the openings in the tab Lift the locking leg over the run-on slope and snap back in the first return for the assembly position or a further lifting of the locking leg and sliding along one of the legs of the U-shaped traverse takes place until the Desired end position reached in the area of the second recess is. The second recess is preferably arcuate Section trained. For easier insertion of the blocking clip the guide leg has one in the longitudinal direction extending bevel as an insertion aid.

The inside diameter of the mentioned arcuate Section in the connection area between the two legs the blocking bracket is larger than the distance between the mutually facing surfaces of the opposite Thigh, creating the desired elastic properties ensured and the aforementioned second return formed can be.

The invention is intended to be explained below using an exemplary embodiment and explained with the help of figures become.

Fig. 1

Draufsicht, Seitenansichten sowie Schnitt längs der Linie A-A einer als Riegelblech ausgebildeten Traverse und

Fig. 2

Seitenansichten und Ansicht auf den Führungsschenkel der Blockierklammer nach der Erfindung.

Here show:

Fig. 1

Top view, side views and section along the line AA of a cross member designed as a locking plate and

Fig. 2

Side views and view of the guide leg of the locking clip according to the invention.

The traverse or tab 1 shown in Fig. 1 has a essential U-shaped cross section 15 with two opposite Legs 2 and a connecting section 3. The opposite ends 4 of the crossbar 1 dive into the assembled Condition in substantially opposite recesses in Side walls of the channel body, not shown, one Recess 5 arranged almost centrally in the cross member 1 Inclusion of a mounting spring or the like means for Attach the cover grate, not shown.

The folded tongues 6 of the cross member 1 form a stop surface towards the inner side wall of the channel body in the mentioned assembled condition.

In the legs 2 of the cross member 1 openings 7 are one certain graded shape, which is essentially correspond to the cross-sectional area of the blocking clip according to FIG. 2. Due to the shape of the openings in connection with the Cross-sectional area of the blocking clip ensures that the brackets only in a certain alternating direction can be inserted.

The locking bracket shown in the views of FIG. 2 has an upper longer guide leg 8 and one lower, shorter locking leg 9.

Locking and guide legs 9/8 are arcuate Related Section 10. The arcuate section 10 leads to a movable elastic displaceability of the Lock leg 9 related to the guide leg 8.

The locking leg 9 also has a run-on slope 11 and a first recess 12 immediately behind the bevel 11 on.

A second recess 13 is in the region of the arc Section 10 formed on the locking leg 9.

In the pre-assembled state, the locking clip is in each case an opening pair 7 of the crossbar 1 is introduced, wherein the Sloping ramp 11 of the locking leg 9 is slightly raised and comes to rest under relaxation in the first recess 12.

After the tab or crossbar 1 is swung into the channel body and has been pre-fixed, a further application is made the blocking clip with light pressure on the arcuate Section 10 with the result that the locking leg 9th slides over the corresponding edge of the truss leg 2 and snaps into the second recess 13. In this position stands the guide leg 8, which is a greater length than has the locking leg 9, from one of the openings relative far out and one side comes into contact with the respective side inner wall of the channel body, so that a unwanted loosening or loosening and sliding out of the traverse from the corresponding recesses in the side walls of the channel body is reliably prevented.

The guide leg 8 has a continuous nose or one Extension 14 on, the entire cross section of the guide leg to an end region 16 essentially the Shape of the openings 7 in the tab 1 corresponds to a defined insertion direction and a mix-up Attach the blocking bracket is given.

For easier insertion, the guide leg 8 is on his front end with a longitudinally extending Provide bevel 17.

As can be seen from the figure, the inside diameter is clear of the arcuate portion 10 larger than the distance of the mutually facing surfaces of the opposite Legs 8 and 9, the inclined transition region 18 den second recess 13 forms.

The blocking clip preferably consists of a plastic material, for example Velamid (registered trademark).

The tab or crossbar 1 can be completely with two Prefabricate locking clips and is on site in the gutter body can be used, whereby for moving the blocking clamps from assembly to the stop or end position no tools or special techniques are required.

LIST OF REFERENCE NUMBERS

1

Tab or traverse

2

Leg of the traverse

3

Connection section of the traverse

4

Travers end

5

recess

6

tongue

7

openings

8th

guide leg

9

latching leg

10

arcuate section

11

starting slope

12

first return

13

second return

14

Nose or appendage

15

U-shaped cross section

16

end

17

Bevel on the guide leg

18

sloping transition area for the second return

Claims (7)

1. A securing device for a drainage channel, with the drainage channel comprising:

   a channel body;

   a cover which can be placed on an upper margin of the channel body;

   at least two recesses arranged essentially opposite to each other in inner side walls of the channel body;

   at least one crosshead (1) in the form of a longitudinal profiled bracket which can be inserted with its opposite ends into the recesses (12) in such a manner that it extends essentially in a transverse direction relative to the channel longitudinal axis inside the channel, and which is provided with a locking element at at least one of its longitudinal ends; and

   fastening means for fastening the cover at the crosshead and thus at the channel, with a replaceable engaging and/or clamping locking clamp (16) which is movable between an assembly and an engagement position, which can be inserted into an opening of the bracket corresponding to the cross-section of the guide leg of the bracket,

   characterised in that
   the clamp is provided with a guide and an engagement leg (8, 9), with the guide and the engagement leg (8, 9) of the locking clamp (16) being movable in their relative position relative to one another, the engagement leg being provided with a leading slope (11) with a first re-entrant corner (12) as well as a second re-entrant corner (13) spaced from the first one in the longitudinal direction, and the legs (2) extending essentially parallel, and the engagement leg (8, 9) being offset rearwards with respect to the guide leg (8).
2. The securing device according to Claim 1,
   characterised in that
   the bracket (1) comprises a U-, V-, double T- or rectangular cross-section (15), with the openings being arranged in such a manner that the locking clamp (16) in its abutment position prevents the bracket from coming out of the inner side walls of the channel body.
3. The securing device according to Claim 1 or 2,
   characterised in that
   the guide leg (8) comprises a stepped cross-section with an extension or projection, and the openings in the bracket (1) are formed in such a manner that the locking clamp (16) can be inserted only in a predetermined direction into the bracket (1).
4. The securing device according to one of the previous claims,
   characterised in that
   the guide leg (8) is rigid and at one end is bent back in the shape of an arc to form the engagement leg (9), with the arc-shaped section connecting the legs comprising resilient properties.
5. The securing device according to Claim 4,
   characterised in that
   the second re-entrant corner (13) is formed in the arc-shaped section (10).
6. The securing device according to one of the previous claims,
   characterised in that
   the guide leg (8) comprises a slope (11) which serves as an insertion aid, extending in the longitudinal direction.
7. The securing device according to Claim 5,
   characterised in that
   the clear inner diameter of the arc-shaped section (10) is larger than the distance between the areas of the opposite legs (8, 9) of the locking clamp (16), which are facing each other.

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