Weatherstrip with ventilation openings

Abstract

The invention relates to a weatherstrip, which is to be placed onto the flange of the edge of the opening of a vehicle and which is made of a side-by-side arrangement of a tubular sealing section (1), of a U-shaped fastening section (2) and of a strip (3), which is shaped onto the side of the fastening section (2) and which, together with a limb (2') of the fastening section (2), circumscribes a cavity (9 ) open toward the underside (1') of the weatherstrip. The cross-sectional profile of the sealing section (1) is partially formed by the limb (2''') of the fastening section (2) facing the former. Ventilation holes (18) are located on the underside of the weatherstrip, which faces said edge and which forms an area of the greatest wall thickness of the sealing section (1). This arrangement of the ventilation opening is advantageous in that this results in almost no negative influence upon the flexural rigidity of the cross-sectional profile so that the weatherstrip can also be placed along small radii of curvature without the risk of the profile collapsing. To this end, the ventilation openings are located on an underside facing the edge without having any negative influence upon the visual appearance.

Description

Technical field [0001] The invention relates to a sealing molding (weather stripping) as claimed in the preamble of claim 1 . Background technique [0002] There are side-by-side sealing moldings in the prior art. For example, the applicant's company provides such products. The sealing moldings of this structure are composed of hollow special-shaped and / or tubular sealing parts arranged side by side and U-shaped sealing parts. Consisting of a solid part, this sealing strip is to be positioned on a circumferential flange, such as a door frame of a motor vehicle. [0003] The design of the fastening part is primarily for assembly. It should be designed to be reliable to avoid inadvertent detachment from the flange. At the same time, the sealing strip should usually also have a shock-absorbing function. It achieves this function by forming a buffer area between metal parts that are arranged to move relative to each other - such as the door frame and the door edge. In the clos...

AI Technical Summary

Problems solved by technology

In this case, there is a disadvantage that not only dirt easily penetrates into the structure of the sealing part in this way

Such a situation not only has a very adverse effect on the appearance of the sealing strip (depending on the local distortion, which appears as the result of uneven distribution of tensile forces), but also locally produces very large mechanical stresses. stress, which will shorten the life of the part

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