B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 70/40 (2006.01) A61B 17/68 (2006.01) A61B 17/86 (2006.01) B29C 43/16 (2006.01) B29C 43/36 (2006.01) B29C 70/08 (2006.01) B29C 70/46 (2006.01) B29D 1/00 (2006.01)
Patent
CA 2207985
An extruded component made of fibre-reinforced thermoplastic materials, in particular a screw (1) that contains a corresponding proportion of fibres. Carbon fibres shaped as endless fibres extend in an at least approximately parallel direction to the centre line of the screw (1) in the area of the head (2) of the screw (1) and in the three immediately adjacent thread turns of the shaft (5). At the surface of the remaining part of the threaded portion, the fibres follow the contour of the thread in the axial direc-tion of the part. The fibres in the care of this section next to the end of the screw are distributed in an increasingly random manner towards the free end of the screw.
L'invention concerne un composant, en particulier une vis (1), en matières thermoplastiques renforcées par des fibres, produit par extrusion, ayant une teneur correspondante en fibres. Des fibres de carbone sous forme de fibres sans fin s'étendent au moins à peu près parallèlement à l'axe médian de la vis (1), dans la zone de la tête (2) de la vis (1) et des trois spires immédiatement adjacentes du filetage de la tige (5). A la surface du reste de la partie filetée de la tige, les fibres suivent le contour du filetage dans le sens axial de l'élément. Les fibres situées dans l'âme de cette section de la tige proche de l'extrémité de la vis sont réparties de façon de plus en plus aléatoire à mesure qu'elles se rapprochent de l'extrémité libre de la vis.
Loher Urs
Mayer Jorg
Tognini Roger
Wegener Thomas
Wintermantel Erich
Amsler Peter
Robic
Sepitec Foundation
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