DE102006031847B4 - Fastening device for fastening a cover - Google Patents

Abstract

Fastening device for fastening a cover (20), in particular a grate or a closed surface, on an open-top component to be installed in the floor, in particular on a drainage channel (10) or a cable duct, comprising a latch (30) fastened to the cover (20) and at least one component-mounted seat (13) for receiving a latch end (31, 31 '), characterized in that the latch (30) comprises a bow-shaped adapter (32) having a mounting portion (33) for attachment to the cover (20) and at least one locking part (40, 40 ') which is connectable to one end (34, 34') of the adapter (32) and designed to form the locking end (31, 31 '), wherein a plurality of adapters (32) for Attachment provided on a plurality of differently shaped covers (20) and the ends (34, 34 ') of all adapters (32) are formed identically, and wherein the adapters (32) to a respective cover made befi gt are.

Description

The invention relates to a fastening device for fastening a cover according to the preamble of claim 1.

For drainage devices, e.g. Drainage channels or even with cable ducts that are installed in the ground, usually covers are provided, which are designed to be over or over movable and attached to the built-in components in the ground. While the components to be installed in the ground are often standard components that need only be manufactured and stocked at various widths and depths, users require a variety of different embodiments for the covers. These differ in terms of their design, the material used and often also the function (with water inlet openings or sealing). All of these covers must be secured with fasteners, e.g. Bars are provided, which match with counterparts in the components (drainage channels) on which the covers are fixed. For each type of cover so separate components to create, making the manufacturing and storage costs is very large.

In the EP 0 931 885 A2 a drainage channel is described in which in recesses of side walls, the ends of a bracket can be used. The EP 0 931 885 A2 further describes that a cover of the bracket are connected by means of a securing element with the channel.

The invention is based on the object to demonstrate a fastening device of the type mentioned in that simplification of manufacture and storage is possible. Furthermore, a possibility for easy installation should be provided.

This object is achieved by a fastening device for fastening a cover having the features specified in claim 1.

An essential point of the invention is that the hitherto usually integrally formed bolt, which was therefore to be designed individually for each cover to achieve accuracy of fit, is now divided into an adapter and one or two locking parts, the adapter can be very simple and made to match the respective types of covers. The locking parts, however, are the same for all bolts regardless of the type of cover. Since now the locking parts, with which engages the bolt in the seat on the component, in particular snaps, are the same design for all covers, they can be formed with greater effort and thus higher reliability.

Preferably, the locking part and the end of the adapter comprise snap-in elements in order to connect the locking part to the adapter, in particular without tools. This not only facilitates the first-time production of a cover with latch, but also makes it possible in a simple manner to easily replace the frequently worn under cover removal wear locking parts.

The snap-in elements are in this case designed such that a loosening of the connection is not as easy as the placement of the locking parts on the adapter to accomplish. Preferably, the snap-in elements are formed such that a release is possible only with the use of tools. As a result, accidental disconnection or even dropping of the locking part can be prevented by the adapter.
In a preferred embodiment of the invention, the latch is designed to snap into the seat elastic, wherein the adapter is substantially rigid and the locking part is at least partially elastic. This makes it possible to make an essential function of the bolt, namely the snap mechanism for all bars the same, without this having to take into account the shape or material of the adapter consideration.

Preferably, the adapter is made of metal, in particular of a material adapted to the cover, so that the adapter, together with the cover, has a surface treatment, e.g. Painting, coating, galvanizing or pickling can be subjected. In particular, if the cover is provided with inlet openings for surface water and therefore seen from above the bolt through the inlet openings therethrough, an adaptation of the design of bolt and cover can be done easily. Furthermore, both parts can be joined together, e.g. by welding or riveting, are surface-coated together, which in turn represents a considerable workload and also reduces the risk of corrosion.

A plurality of adapters is provided for attachment to a plurality of differently shaped, in particular differently dimensioned covers, wherein the ends of all adapters are identical. The advantages of this have already been described above.

The adapters preferably have at least one undercut at their ends, and the locking part one, the end of the adapter at least partially enclosing receiving portion and a latchable behind the undercut holding portion, wherein the arrangement of "projection" and "return" of course, can be reversed. This allows a very secure attachment of the two parts done together in a simple manner.

The locking part is preferably made of plastic. In particular, this is an injection molding process. This results in the further advantage that the parts subjected to friction of the bolt, namely the bolt ends formed by the locking parts are completely corrosion-prone and thus a susceptible to abrasive processes surface coating is not necessary.

Hereinafter, an embodiment of the invention will be explained in more detail with reference to drawings.

list of figures

• - 1 A perspective view of a drainage channel with a partially removed cover;
• - 2 the cover after 1 from underneath;
• - 3 a complete bar in a side view;
• - 4 an adapter in perspective view;
• - 5 a perspective view of a locking part with "transparent" drawn material and
• - 6 the adapter after 4 with attached locking parts to 5 in a perspective view.

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

In 1 is a groove 10 made of polymer concrete, on its upper edges with frames 11 . 11 ' Is provided. The frames 11 . 11 ' have side walls 12 . 12 ' on and are sized so that a cover 20 on the sides 11 . 11 ' can be hung up and sits there with little play. Below a support surface 14 for the cover 20 extends over the entire length of the frame or the gutter a retaining groove 13 ,

At the bottom of the cover 20 , which according to the embodiment shown here (see in particular 2 ) from bars 21 is formed on the longitudinal beams 22 . 22 ' are attached, there are bolts 30 that serve the cover 20 on the gutter 10 to fix.

The bars 30 include, as in 3 shown, on the one hand a bow-shaped adapter 32 which may be bent, for example, from a metal strip and with a mounting portion 33 at the bottom of bars 21 the cover 20 attached, eg welded. The shape and dimensions of the adapter 32 is the shape and dimensioning of the cover 20 customized.

The adapter 32 points, in particular in 4 shown at its ends 34 . 34 ' inwardly projecting slots 35 . 35 ' on, their edges inside the slots 35 . 35 ' with projections 36 . 36 ' are provided.

Furthermore, the bolt comprises 30 stop means 40 . 40 ' , which are preferably injection molded from plastic and on the ends 34 . 34 ' of the adapter 32 are deferred. These are the locking parts 40 . 40 ' with a slot 41 provided, which - as in particular in 5 can be seen - by a pin 42 is interrupted, on its outer surfaces, which the slot 41 limit, notches 43 having. This pin 42 with his scores 43 corresponds in shape with the slots 35 . 35 ' with the projections 36 . 36 ' , so that when attaching a locking part 40 to an end 34 . 34 ' the adapter of the pins 42 in the slot 35 . 35 ' stuck and the projections 36 . 36 ' in the notches 43 . 43 ' sit. In this way, a firm grip of the locking parts 40 . 40 ' on the adapter 32 guaranteed, like this in 6 is shown.

The outer edges of the locking parts 40 . 40 ' form bolt ends 31 . 31 ' (please refer 3 ), which when putting one with ties 30 provided cover 20 on a gutter 10 in the holding groove 13 the gutter 10 snap in and so does the cover 20 on the gutter 10 hold.

The shape of the locking parts 40 . 40 ' is now such that these between the bolt ends 31 . 31 ' and the area in which they are on the adapter 32 stuck, bending sections 44 . 44 ' have and in the assembled state protrude upwards. When placing a gutter 10 with bars 30 become the ends 31 . 31 ' of the bolt 30 pivoted upwards and thus at the same time inward, so that the engaging the bolt 30 with the holding groove 33 done with relatively little force. In contrast, when lifting the cover 20 from the gutter 10 A higher force is expended because of the ends 31 . 31 ' of the bolt 30 in the (on both sides of the gutter 10 provided) retaining grooves and only due to an upper inclined surface 45 . 45 ' can slide inwards, leaving the ends 31 . 31 ' of the bolt 30 to be pushed inwards.

On the shape of the adapter 32 and the locking parts 40 . 40 ' It does not matter in the present invention, as this may also look different than shown in the pictures. For example, the ends of the adapter 33 also be bent upwards when the locking parts 40 . 40 ' one of the directions shown in the figures are bent in opposite directions.

An important advantage of the invention is that the adapter 32 before attaching the locking parts 40 . 40 ' with the cover 20 connected and can be subjected to a surface treatment together with her. This not only facilitates the production, but it also leads to a significant improvement in the corrosion protection, as well as the joint (by welding, riveting, screws, etc.) with the cover 20 the same surface treatment as the remaining parts. Furthermore, it is also possible to use the adapter 32 integral with the cover 20 to manufacture.

Another advantage of the invention is that parts of the bolt 30 namely, the locking parts 40 . 40 ' are interchangeable. Because the elasticity of the bolt 30 through the locking parts 40 . 40 ' Certainly, different covers can be used 20 equipped with adapters of the same shape and material with the same locking properties, without the need for special design measures. It can always be the same locking parts 40 . 40 ' for all covers 20 Find use.

LIST OF REFERENCE NUMBERS

10

gutter

11, 11 '

frame

12, 12 '

Seitentand

13

retaining groove

14

bearing surface

20

cover

21

rods

22, 22 '

longitudinal beams

30

bars

31, 31 '

bolt ends

32

adapter

33

attachment section

34, 34 '

adapter end

35, 35 '

slot

36, 36 '

head Start

40, 40 '

arresting

41

slot

42

spigot

43, 43 '

score

44, 44 '

bending section

45, 45 '

sloping surface

Claims (10)

Fastening device for fastening a cover (20), in particular a grate or a closed surface, on an open-top component to be installed in the floor, in particular on a drainage channel (10) or a cable channel, comprising a latch (30) fastened to the cover (20) ) and at least one seat (13) fixed to the component for receiving a locking end (31, 31 '), characterized in that the bolt (30) has a bow-shaped adapter (32) with a fastening portion (33) for fastening to the cover (20 ) and at least one locking part (40, 40 ') which is connectable to one end (34, 34') of the adapter (32) and designed to form the locking end (31, 31 '), wherein a plurality of adapters (32 ) are provided for attachment to a plurality of differently shaped covers (20) and the ends (34, 34 ') of all adapters (32) are formed identically, and wherein the adapters (32) to a respective cover suitable g are made. Fastening device according to Claim 1 , characterized in that the plurality of covers (20) are dimensioned differently. Fastening device according to one of the preceding claims, characterized in that the locking part (40, 40 ') and the end (34, 34') of the adapter (32) snap-in elements (36, 36 '; 43, 43') for connecting the locking part ( 40, 40 ') with the adapter (32). Fastening device according to Claim 3 , characterized in that the snap-in elements (36, 36 ', 43, 43') are designed such that a release of the connection can be carried out in particular under use of tools. Fastening device according to one of the preceding claims, wherein the latch (30) for snapping into the seat (13) is elastic, characterized in that the adapter (32) substantially rigid and the locking part (40, 40 ') with at least one elastic Section (44, 44 ') are formed. Fastening device according to one of the preceding claims, characterized in that the adapter (32) made of a cover (20) adapted material, is made such that the adapter (32) together with the cover (20) of a surface treatment, eg painting, coating , Galvanizing, pickling can be subjected. Fastening device according to Claim 6 , characterized in that the adapter (32) is made of metal. Fastening device according to one of the preceding claims, characterized in that the adapter (32) at its ends (34, 34 ') at least one holding portion (36, 36') and the locking part (40) one, the end (34, 34 ') the adapter at least partially enclosing receiving portion (41) and in the holding portion (36, 36 ') engageable undercut (33) - or vice versa - have. Fastening device according to one of the preceding claims, characterized in that the locking part (40, 40 ') is made of plastic. Fastening device according to Claim 9 , characterized in that the locking part (40, 40 ') is injection molded from plastic.

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