US 9,802,366 B2 · Method for manufacturing a plurality of preforms for reinforcing members

Abstract

A method of manufacturing a plurality of reinforcing element preforms, involving the steps of: positioning reinforcing elements on the external surface of a die; assembling the reinforcing elements thus positioned with one another so as to form a textile sleeve with a longitudinal axis and surrounding the die; moving the sleeve longitudinally toward a multi-cavity mandrel having an elongate overall shape, the multi-cavity mandrel having on its external surface a plurality of longitudinal cavities which are distributed, when viewed in cross section, around the periphery of the external surface; forming the sleeve on the plurality of peripheral cavities so that the sleeve conforms to the shape of the multi-cavity mandrel and thus adopts the shape of a set of reinforcing element preforms.

Claims15

Dependent claims

A method for manufacturing a plurality of preforms for reinforcing members, comprising the steps:

positioning strengthening elements on the outside surface of a die,
assembling together the strengthening elements so positioned in order to form a textile sleeve having a longitudinal axis and surrounding the die,
moving said sleeve longitudinally towards a multi-cavity mandrel of elongate general shape, the multi-cavity mandrel comprising on the outside surface of said mandrel a plurality of longitudinal cavities which are distributed, as viewed in cross-section, around the periphery of the outside surface, and
forming the sleeve on the plurality of peripheral cavities of the multi-cavity mandrel in order for said sleeve to conform to the multi-cavity shape of said mandrel and thus take the shape of an assembly of preforms for reinforcing members.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

14/480,829Filed 9 Sep 2014 · continuation

Priority

FR 12 5217912 Mar 2012

Published

US 2014/0377491 A125 Dec 2014

Granted

31 Oct 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification20 codes

B29C 70/347
And shaping or impregnating by compression , i.e. combined with compressing after the lay-up operation: combined with compressing after the…
B29B 11/16
Characterised by structure or composition: comprising fillers or reinforcement
B29C 70/24
Using fibres of substantial or continuous length: oriented in at least three directions forming a three-dimensional [3D] structure
B29C 70/545
Component parts, details or accessories; Auxiliary operations , e.g. feeding or storage of prepregs or SMC after impregnation or during ageing:…

Method for manufacturing a plurality of preforms for reinforcing members

Life of this patent

Method for manufacturing a plurality of preforms for reinforcing members

Life of this patent

Abstract

Claims15