Buckles – buttons – clasps – etc. – Clasp – clip – support-clamp – or required component thereof – Having gripping member formed from – biased by – or mounted on...
Patent
1998-08-24
1999-10-26
Sakran, Victor N.
Buckles, buttons, clasps, etc.
Clasp, clip, support-clamp, or required component thereof
Having gripping member formed from, biased by, or mounted on...
24541, 24563, A44B 2100, B60J 1000, F16B 500
Patent
active
059705868
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to an element for fixing a profiled seal to the edge strip of a metal sheet, which edge strip is embraced by a groove in the profiled seal.
In vehicle construction in particular, profiled seals are frequently placed on the edge strips of metal sheets. In order to increase the holding force, tongues oriented towards the metal sheet edge are provided in the groove which is provided for the metal sheet edge. However, the holding forces which can thereby be attained are not sufficient for all specific applications, and are insufficient for low metal sheet thicknesses in particular.
A device which comprises continuous clamping strips for the mounting of decorative and sealing strips on a supporting flange has become known from German Patent Publication No. 1,575,105. This device is completely embedded in an extensible coating material, which may be made of plastics or rubber. However, when a device such as this is pushed on to the edge the coating material which is situated inside the clamping strip can be damaged, so that firstly the metal support can cause damage to the lacquer and secondly the damaged areas of the coating material can be further torn open under subsequent stress.
SUMMARY OF THE INVENTION
The object of the present invention is therefore to provide a fixing element which can be incorporated in profiled seals by vulcanising or injecting the seal material therein, and which gives the profiled seal a secure hold on the edge strip of the metal sheet without damaging a lacquer coat which is present on the metal sheet.
This object is achieved according to the invention in that two limbs of a resilient metal clip, which is constructed for embedding in the profiled seal, embrace a U-shaped plastics part, which is constructed in such a way that it surrounds the edge strip when the profiled seal is fixed and serves as an intermediate layer between the metal clip and the edge strip, that the spacing between the limbs narrows in end regions of the limbs and widens again at the ends of the limbs, and that the U-shaped plastics part has a shape which is matched to the narrowed regions between the limbs and has a lower hardness than the metal clips.
The fixing element according to the invention imparts a firm hold to the profiled seal in which it is enclosed, and moreover prevents damage to a protective layer, particularly a lacquer coat, which is provided on the metal sheet.
In one embodiment of the invention, outside the narrowed regions of the limbs the plastics part is narrower than the spacing between the limbs. By means of this embodiment, rubber or another material which is provided for the profiled seal can penetrate the intermediate space between the metal clip and the plastics part when it is vulcanised on to or injected round the fixing element according to the invention, and can thus create a strong joint between the profiled seal and the fixing element.
To ensure that the plastics part is centrally seated inside the metal clip when injection is effected round the fixing element, provision is made in an advantageous form of this embodiment for each of the limbs of the metal clip to have at least one inwardly oriented embossed formation outside the narrowed regions, for centring the plastics part.
In another embodiment of the invention, the fixing of the plastics part inside the metal clip is improved in that the plastics part is of greater width following the narrowed regions than it is outside the narrowed regions.
Another embodiment of the invention likewise serves for the fixing of the plastics part in the metal clip and consists of the plastics part having at least one projection which fits into an opening in the metal clip. At the same time, displacement in the direction of the sheet metal edge is prevented in particular by arranging for the projection to be a rib which extends transversely to the direction of the metal sheet edge and which fits into an open slot at the end of the limb.
A further improvement in the hold of the first form
REFERENCES:
patent: 1443169 (1923-01-01), Conrad
patent: 3086264 (1963-04-01), Tindall
patent: 3256577 (1966-06-01), Bright
patent: 3286963 (1966-11-01), Bergman
patent: 3797076 (1974-03-01), Watkin
patent: 4074465 (1978-02-01), Bright
patent: 5692273 (1997-12-01), Rodde
Demel Otto
Michels Manfred
Sehr Ralf
Senftleber Markus
Mecano Rapid GmbH
Saar-Gummiwerk GmbH
Sakran Victor N.
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