Method of fastening first and second thermoplastic parts, and two-part assembly
AssigneeCompagnie Plastic Omnium
InventorsDavid Tresse, Marc Verwaerde
Life of this patent
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Abstract
The invention relates to a method of fastening first and second thermoplastic parts of a motor vehicle, the first part having a protuberance projecting from a face and the second part having an engagement surface, the method consisting in bringing the second part into contact with the face of the first part, in heating the protuberance, and in plastically deforming the protuberance towards the second part so that the second part is gripped between the face of the first part and an end portion of the protuberance.
Claims11
Method of fastening first and second thermoplastic parts of a motor vehicle, wherein the first part has a protuberance projecting from one side and the second part has an engagement surface, the method comprising the following steps:
- bringing the second part into contact with said side of the first part, the second part being designed so that the angle between a vector normal to the side of the first part and a vector normal to the engagement surface is small and so that the engagement surface is close to the protuberance, wherein the protuberance is a tongue or rib, and the protuberance is substantially perpendicular to the side of the first part,
- heating the protuberance,
- plastically deforming the protuberance towards the second part using a deformation means moving substantially parallel to the side of the first part, so that at least one end portion of the protuberance is in contact with the engagement surface.
Assembly of first and second thermoplastic parts of a motor vehicle, wherein:
- the first part comprises a protuberance projecting from one side,
- the second part is in contact with the side of the first part,
- an end portion of the protuberance is in contact with an engagement surface of the second part by plastically deforming the protuberance towards the second part using a deformation means moving substantially parallel to the side of the first part,
- the angle between a vector normal to the engagement surface and a vector normal to the side of the first part is small, and
- the end portion and the engagement surface are fastened by mixing their materials.
Dependencies are inferred from the claim text.