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US 8,747,718 B2Granted
Plastic hollow part and method for the manufacture thereof
AssigneeMann+Hummel GmbH
InventorsThomas Jessberger, Markus Hanselmann, Horst Danneberg, Guido Regener, Maik Hentschel
Life of this patent
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Abstract
The invention relates to a plastic hollow part (1) and to a method for the manufacture of a plastic hollow part, wherein plastic material is introduced into a molding tool by means of a blowing or injection molding process, forming a hollow connection contour (10) and the plastic is formed into a hollow part (1), wherein a support ring (4) is molded into the area of the connection contour (10).
Claims6
A method of producing a plastic hollow part, comprising:
- providing an injection mold suitable for a blow-molding or injection molding process;
- inserting an annular support ring into said mold;
- inserting said hollow part into said mold in an interior of said annular support ring, with formation of a cavity between a connecting contour of said plastic hollow part and said support;
- securing positionally said support ring in said mold relative to said plastic hollow part in said mold;
- introducing a plastic filler material into said cavity by means of said blow-molding or said injection molding process to fill out said cavity;
- embedding said annular support ring into said connecting contour proximate to an end face of said hollow part by at least partially surrounding said annular support ring with said plastic filler material;
- wherein said securing positionally step includes the step of securing said support ring onto an outer surface of a split component;
- wherein before said introducing step the method further includes the step of moving said split component with said support ring into and against an interior of said plastic hollow part.
5 more elements
A method of producing a plastic hollow part, comprising:
- providing an injection mold suitable for a blow-molding or injection molding process;
- inserting an annular support ring into said mold;
- inserting said hollow part into said mold in an interior of said annular support ring, with formation of a cavity between a connecting contour of said plastic hollow part and said support;
- securing positionally said support ring in said mold relative to said plastic hollow part in said mold;
- introducing a plastic filler material into said cavity by means of said blow-molding or said injection molding process to fill out said cavity;
- embedding said annular support ring into said connecting contour proximate to an end face of said hollow part by at least partially surrounding said annular support ring with said plastic filler material;
- wherein after said embedding step the method further comprises:
- shrinking said filler material surrounding said support ring, said shrinking securing said support ring into said filler material.
5 more elements
A method of producing a plastic hollow part, comprising:
- providing an injection mold suitable for a blow-molding or injection molding process;
- inserting an annular support ring into said mold;
- inserting said hollow part into said mold in an interior of said annular support ring, with formation of a cavity between a connecting contour of said plastic hollow part and said support;
- securing positionally said support ring in said mold relative to said plastic hollow part in said mold;
- introducing a plastic filler material into said cavity by means of said blow-molding or said injection molding process to fill out said cavity;
- embedding said annular support ring into said connecting contour proximate to an end face of said hollow part by at least partially surrounding said annular support ring with said plastic filler material;
- wherein before said inserting said hollow part step, said method further includes the step of
- forming at least one undercut into an interior surface of said hollow part;
- wherein said introducing step includes the step of filling said at least one undercut with said filler material.
6 more elements
Dependencies are inferred from the claim text.