Land vehicles – Wheeled – Attachment
Patent
1994-06-06
1996-12-10
Bell, James J.
Land vehicles
Wheeled
Attachment
280847, 428 85, 428 97, 428116, 428253, 428247, 428256, B62B 914
Patent
active
055824307
DESCRIPTION:
BRIEF SUMMARY
This application is a 371 of PCT/EP42/01668 Jul. 22, 1992.
The invention relates to a spray protection device for vehicles or vehicle trailers for reducing the spray occurring behind a travelling vehicle and produced by the wheels running on wet roads, said spray protection device having the form of a flat structure with a first side facing the relevant vehicle wheel and a second side facing away from this wheel, whereby the first side is formed by an inlet layer having water passage openings, at the back of the inlet layer facing away from the first side at least one spacer is provided for creating a void between the inlet layer and a carrier for the spacer and the inlet layer.
In particular, the invention relates to a water absorber according to the Guideline 91/226/EEC of the Council of the European Communities of Mar. 27, 1991.
Such a spray protection device can be part of the wheel cover and/or the splash guard and/or the skirt joined laterally to the wheel cover, but it is also possible to attach such a spray protection device to the wheel cover and/or the splash guard and/or the skirt. Usually, the wheel cover is to be understood as a mudguard, the splash guard or mud flap as a component attached behind the relevant wheel on the lower part of the chassis or a loading area or on the wheel cover, this component extending in the direction towards the road surface.
When it was ascertained at the beginning that a spray protection device of the generic type has the form of a flat structure, then it is herewith to be understood that the measurements of the surface of the spray protection device are large in comparison to its thickness.
Two known spray protection devices of this type are to be briefly described in the following. A first known spray protection device (EP-A-0 425 852) comprises a rigid, plate-shaped, back component having in the cross-section, L-shaped, vertical side areas extending to the front in the direction towards the vehicle wheel--the back component, thus, has in the cross-section, a U-shaped design with inwardly angled flanks--as well as a rigid, front component forming the inlet layer, which is held by the L-shaped side areas of the back component, whereby a void is created between front and back components. The front component is formed by two or several strips or struts which are, in particular, triangular-shaped in the cross-section and extend in vertical direction and by strips or struts which are, in particular, designed in the same way as the first, joined with these and extend in horizontal direction. Ribs are integrally formed on the back component for drainage purposes, as well as numerous pin-like projections, which, like the ribs, extend into the void and which serve to absorb the kinetic energy of the water penetrating through the front component into the spray protection device. The cited publication deals with the dimensioning and the arrangement of the projections and the ribs on the back component, i.e. with the problem of draining the water which has reached the void, as well as the construction of the front component formed by crosspieces and with the problem of attaching this front component to the back component.
A spray protection device of the type described in the beginning known from GB-2 132 148 A comprises an inlet layer which is designed in accordance with the front component of the precedingly described spray protection device, as well as an energy absorbing layer and a spacer layer. The energy absorbing layer is formed by two sets of parallel extending, elongated elements which cross each other at a certain angle, and the spacer layer is formed by an integrally extruded diamond-shaped mesh, which either keeps the inlet layer and the energy absorbing layer at a distance from each other or keeps the last-mentioned layers at a distance from a back component, as for example, a spray flap which, for its part, holds the spray protection device.
At least in the known spray protection device dealt with first, this is a finished component, which has the disadvant
REFERENCES:
patent: 3899192 (1975-08-01), Reddaway
patent: 4391870 (1983-07-01), Ellis
patent: 4598000 (1986-07-01), Mantarro
patent: 5273318 (1993-12-01), Naksyama
Bauer Ulrich
Grahlmann Jurgen
Bell James J.
Forbo-Poligras GmbH
Timmer Edward J.
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