CN104619931A

CN104619931A - Cover

Info

Publication number: CN104619931A
Application number: CN201380046997.8A
Authority: CN
Inventors: 托马斯·多; 史蒂芬·梅尔; 约翰娜·斯皮卡勒; 马可·温克
Original assignee: ACO Severin Ahlmann GmbH and Co KG
Current assignee: ACO Ahlmann SE and Co KG
Priority date: 2012-09-10
Filing date: 2013-09-09
Publication date: 2015-05-13
Anticipated expiration: 2033-09-09
Also published as: ES2748839T3; EP2904166B1; WO2014037544A1; RU2614586C2; JP2015532954A; EP2904166A1; MX2015001029A; CN104619931B; BR112015005174B1; BR112015005174A2; AU2013311585A1; RU2015113018A; LT2904166T; US20150233081A1; PL2904166T3; ZA201501818B; DK2904166T3; DE102012108392A1; AU2013311585B2; JP6082465B2

Abstract

Covers for structures, for example drainage channels or the like, which can be installed into a floor are known, said covers comprising a surface (11) which can be accessed and driven over and which comprises a flat structure (13) on a first lower plane and elevations (14) with top surfaces lying above the flat structure (13) on a second higher plane. The aim of the invention is to improve the non-slip properties and to achieve a self-cleaning effect. This is achieved in that the top surfaces (15) have an anti-slip surface structure which comprises a plurality of individual elevations. The ratio of the air volume below the individual elevations (16) to the volume of the individual elevations (16) is Vv/Vm=(0.01 to 0.5)/(0.001 to 0.05).

Description

Cover plate

The present invention relates to a kind of cover plate being arranged on the building of underground as described in the preamble according to claim 1.

Become known for being arranged on the equipment of underground or (especially) for the irrigation canals and ditches of surface drainage and well, it has cover plate to cover.These deck portion ground are driven through thereon by motor vehicle, but are also particularly trampled thereon by pedestrian.Once cover plate wets or dirty, then have the danger of slipping, but also likely can be injured.

The cover plate, particularly grid of known multiple form of implementation.The such as grid shown in DE 1 853 985 U, DE 202,006 014 082 U1, DE 89 09 748 U1 or DE 1 876 986 U, these grids are furnished with the structure on (wedge shape) channel-shaped surface or have the projection of triangular-section.In addition the such as irrigation canals and ditches cover plate as described in the preamble of known claim 1 from German design patent M 9 505 847, it has projection, and described projection can guarantee anti-skid safety.

But known layout can only be limitedly anti-skidding.Particularly when cover plate is made up of plastic material, particularly during injection mo(u)lding, be easy to make dirty, this can make the danger of accident increase.

In addition, although known anti-skid structure can provide enough skid resistances usually in interior zone such as swimming pool, wherein with not having the clean water of contamination particle to wash away grid.But such as in exterior zone once contamination particle contact grid, so known macrostructure (being just such as known channel-shaped thing (Riffelung)) and microstructure (indenture (Narbung)) are filled and led up due to contamination particle-water-entering of mixture, therefore no longer include enough skid resistances.

Task of the present invention is, provides a kind of cover plate of aforementioned type, still to guarantee the anti-skid safety increased with the least possible cost.

This task is achieved by cover plate as claimed in claim 1.

This task is particularly by being arranged on the building of underground, particularly the cover plate of well, drainage by well points, escape canal or similar dewatering installation is achieved, it has: can for trample and drive travel surface, this surface has the plane structure in the first lower plane; And, with the projection of projections mantle surface, these projections mantle surface are located at the second higher plane of more than described plane structure, it is characterized in that, projections mantle surface has anti-skidding surface texture, this surface texture has multiple single projection, wherein be preferably (0.01 to 0.5)/(0.001 to 0.05) in the single volume of air of protruding below and the volume ratio Vv/Vm of single projection, be preferably (0.02 to 0.2)/(0.002 to 0.01).

Therefore, anti-skid structure extends vertically upward from original cover plate plane (lower plane), makes to have obviously more contamination particle just can fill and lead up the region between anti-skid structure and improve skid resistance thus.

Therefore the more important of the present invention is, even if when contamination particle is brought in anti-skidding surface texture, these contamination particles can be rinsed out or also move to by trampling in region lower between bumps easily.

Preferably, single projection has different maximum heights.Thus achieve, even if when contamination particle is deposited in the differing heights region of anti-skid structure, these contamination particles also have different height and again play anti-skidding effect voluntarily in this way.

Possible, in the first lower plane, lower plane structure has anti-skidding surface texture, and this surface texture is more not coarse compared to the non skid matting structure of projections mantle surface.The plane structure being positioned at lower such as can have indenture to realize required outward appearance, such as, obtain casting of appearance of cast, and also realizes the non-skid property of plane structure thus for improving roughness.

Preferably, maximum height is arranged on from the distribution of Sz=150 μm to 1500 μm, in the distribution preferably between 230 μm to 1000 μm.Described measurement parameter (calculating parameter as pointed out in manual below and Patent right requirement) derives from DIN EN ISO25178.Wherein explicitly pointed out described parameter, be also described measuring method in the standard, described measuring method has drawn parameter given below simultaneously.

The distribution of single projection or its size can be carried out regularly.But preferably select the one in random distribution in the plane to distribute, thus make having low single projection compared with being also provided with height in zonule.

These single projections can be arranged to difformity (from horizontal profile).But preferably single projecting formations is become pyramid or taper.

Maximum sinking height (it is also referred to as recess heights) of single projection is Sv=50 μm to 500 μm, is preferably 85 μm to 310 μm.This scope is unexpectedly proved to be particularly advantageous.

The roughness value of surface texture is preferably Sa=10 μm to 200 μm, is preferably 15 μm to 90 μm.The aspect ratio (according to the transition face ratio of DIN EN ISO 25178 also referred to as the development on limited scale surface) of the stretching of surface texture is preferably Sdr=20% to 300%.The peak density that surface texture preferably has is Spd=0.5mm ^-1to 20mm ^-1, be preferably 1mm ^-1to 10mm ^-1.

Size range above-mentioned unexpectedly has special effect, namely occurs damage hardly on top on the one hand, and can realize enough skid resistances and self-purification capacity (Selbstreinigungskraft) on the other hand.

The present invention is elaborated below by shown accompanying drawing.Shown in figure:

Fig. 1 shows the top view of escape canal grid used,

Fig. 2 shows the sectional view along II-II line in Fig. 1, and

Fig. 3 shows the III region in Fig. 2 with enlarged drawing.

As can be appreciated from the illustration, the form of implementation of the grid 10 here has supporting construction, and this structure has surface 11, and this surface is positioned in the first lower plane.Described surperficial 11 to be interrupted by outfall 12 and to form smooth plane structure 13.At this moment, described plane structure 13 has very little surface roughness, and as such as can being formed on surface, described surface roughness is produced by injection molding technique.

Surface 11 on be provided with bar-shaped protruding 14, its projections mantle surface 15 has described roughness, its particularly when injection mo(u)lding by injection moulding shape correspondingly shaping and obtain.Projections mantle surface 15 has single protruding 16 in this case, and as shown in Figure 3, these are single projects through producing with various single cone sharply of various height.

Shapingly to be guaranteed by described, the contamination particle touching protruding 14 is on the one hand easy to be rinsed and is transported in smooth plane structure 13.From smooth plane structure 13, contamination particle is discharged to outfall 12, thus makes to produce a kind of self purification by selected structure here.Even if when trampling, due to gathering of occurred power meeting decreasing pollution particle, because these contamination particles can be extruded projections mantle surface 15 and be transported to smooth plane structure 13, arrive outfall 12 so that final.

List of reference signs

10 cover plates

11 surfaces

12 outfall

13 plane structures

14 is protruding

15 projections mantle surface

16 single projections

Claims

1. can be arranged on the cover plate of the building, particularly well of underground, drainage by well points, escape canal or similar dewatering installation, have:

● can for trample and drive travel surface (11), described surface has the plane structure (13) in the first lower plane; And

● with the projection (14) of projections mantle surface (15), in the second that described projections mantle surface is located at more than described plane structure (13), higher plane,

Described projections mantle surface (15) has anti-skidding surface texture, and described surface texture has multiple single projections (16) and lower plane structure (13) is more coarse,

It is characterized in that,

In the described volume of air of single projection (16) below and volume ratio Vv/Vm=(0.01 to 0.5)/(0.001 to 0.05) of described single projection (16).

2. cover plate as claimed in claim 1, it is characterized in that, in the described volume of air of single projection (16) below and volume ratio Vv/Vm=(0.02 to 0.2)/(0.002 to 0.01) of described single projection (16).

3., as cover plate in any one of the preceding claims wherein, it is characterized in that, described single projection (16) has different maximum heights.

4., as cover plate in any one of the preceding claims wherein, particularly cover plate as claimed in claim 3, it is characterized in that, maximum height is arranged on from the distribution of Sz=150 μm to 1500 μm, preferably in the distribution of 230 μm to 1000 μm.

5., as cover plate in any one of the preceding claims wherein, particularly cover plate as claimed in claim 4, is characterized in that, described in be distributed as random distribution.

6., as cover plate in any one of the preceding claims wherein, it is characterized in that, described single projection (16) is configured to pyramid or taper.

7. as cover plate in any one of the preceding claims wherein, it is characterized in that, described single projection (16) has the maximum sinking height from Sv=50 μm to 500 μm, preferably the maximum sinking height of 85 μm to 310 μm.

8. as cover plate in any one of the preceding claims wherein, it is characterized in that, the roughness value of described surface texture is Sa=10 μm to 200 μm, is preferably 15 μm to 90 μm.

9., as cover plate in any one of the preceding claims wherein, it is characterized in that, the aspect ratio of the stretching of described surface texture be Sdr=10% to 500%, be preferably 20% to 300%.

10., as cover plate in any one of the preceding claims wherein, it is characterized in that, described surface texture has from Spd=0.5mm ^-1to 20mm ^-1peak density, preferred 1mm ^-1to 10mm ^-1peak density.