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US 2010/0135747 A1Published application
Extrusion blow molded component made of thermoplastic
AssigneeKautex Textron GmbH & Co. KG
InventorsAlexander Herroder, Thomas Malcher
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AssigneeKautex Textron GmbH & Co. KG
InventorsAlexander Herroder, Thomas Malcher
Estimating the term…
The invention relates to an extrusion blow-molded component (1) made of thermoplastic resin. The component (1) preferably comprises a recess in the exterior wall, the recess being configured as a blind bore (2) provided with at least one convolution (4). The blind bore (2) serves to receive a complementary fastening element (6) equipped with a threaded stem (17). A contour is provided in the region of the orifice (3) of the blind bore (2), the contour positively interacting with a contour that is complementary on the fastening element upon insertion of the fastening element (6), wherein the angular position of the contour (2) is selected such that inserting the contours into each other is possible only by overcoming an axial tension that is built up due to the rotating movement of the parts to each other under elastic deformation of the plastic (FIG. 1).
An extrusion blow molded component made of thermoplastic having at least one recess in the wall thereof, which is formed as a blind hole provided with at least one thread for accommodating a complementary fastening element characterized in that, in the area of the mouth of the blind hole, at least one contour is provided which cooperates form-fittingly, on insertion of the fastening element, with a contour complementary thereto on the fastening element, the angular position of the contour being selected in such a way relative to the thread of the blind hole that fitting together of the contours is only possible by overcoming an axial tension built up by rotary motion of the parts relative to one another by resilient deformation of the plastic.
Dependencies are inferred from the claim text.