Profile section moulded by multi-injection moulding and forming a seal or a moulding for the body of a motor vehicle, and method for manufacturing same

Abstract

The present invention relates to a profile section moulded by the multi-injection moulding of thermoplastic materials having different hardnesses, and forming a seal or a moulding for the body of a motor vehicle, as well as to a method for manufacturing said profile section. Said profile section (10") includes at least: an antifriction coating (13") tightly bonded to a longitudinal sealing surface (12a") of the profile section and intended enabling the latter to sealingly contact a mobile element of the vehicle, said sealing surface ending, substantially at a right angle at the respective ends thereof, in two transverse sealing edge surfaces of the profile section; and / or a decorative film (14") tightly bonded to a visible longitudinal surface (11c") of the profile section and intended for enhancing the appearance of said surface, wherein said visible longitudinal surface is separate from the sealing surface and ends, substantially at a right angle at the respective ends thereof, in two visible transverse edge surfaces of the profile section, characterised in that said materials are overmoulded: (i) either on said coating(s) or on said film(s), which is / are tightly bonded, in a continuous manner, to at least one of the visible edge surfaces; (ii) or on said coating(s) and on said film(s), which are optionally tightly bonded, in a continuous manner, to at least one of the sealing edge surfaces and to at least one of the visible edge surfaces.

Description

technical field [0001] The invention relates to a profile molded by multiple injection moldings from thermoplastic materials of different hardness, which profile forms a seal or trim molding for a motor vehicle body and has one or more wear-resistant surfaces and And / or a surface that enhances the appearance, the invention also relates to a method for producing such a profile. The invention applies to all seals that can be used on such vehicles, especially those selected from the group consisting of inner and outer friction linings, window seal grooves, double seals, and also to all Trim moldings (these vehicles are fitted with such moldings), such as trim moldings for door frames, for friction liners, for window seal grooves, or for securing lamp moldings (e.g. taillights or Rear glass moldings, and even windshield or rear window moldings) Background technique [0002] Automotive body seals typically perform the following functions: [0003] - is held on its support, whi...

AI Technical Summary

Problems solved by technology

[0013] - too short so that a part of the better face whose appearance is lifted by the insert is visible, or a functional part is uncovered which would have an excessively high coefficient of friction in the case of wear-resistant cladding and would Causing malfunctions in the treated area, for example causing the lip of weatherstripping to curl or vibrating glass that is believed to slide in it, etc.;

[0014] - or is too long, the insert develops extra thickness or folds and leads to incorrect handling or assembly difficulties of the functional parts it covers (eg jamming), or undesirably protrudes beyond the end of the profile, so that later Additional trimming operations must be performed

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