US 8,770,081 B2Granted

Closed tubular fibrous architecture and manufacturing method

AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives

InventorsPatrick David, Bruno Bompard, Jean Luc Bonnand

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Abstract

A tubular fibrous architecture is disclosed. According to one aspect, the tubular fibrous architecture includes a closed tubular part in at least one of its ends or bottom. The closed tubular part includes an architecture in which a textile material, such as a thread, roving, ribbon or bundle of threads, is continuously output from the bottom. Each textile material that is output from the bottom is continuously wound about the tubular part. All of the textile materials at the junction between the bottom and the remainder of the tubular part are continuous and there is a continuous geometric transition between the bottom architecture and the architecture of the remainder of the tubular part such that the textile materials in the tubular part cross over. A method of making such a tubular fibrous architecture is also disclosed.

Claims25

Dependent claims

A method of fabricating a tubular fibrous architecture closed at one of its ends, the method comprising:

forming a plurality of pairs of bobbins using a textile material, the textile material including at least one of a thread, roving, ribbon, or bundles of threads, each pair of bobbins being formed by winding a first part of the textile material, from a first end of the textile material, onto a first bobbin in the pair and winding a second part of the textile material from the second end of the textile material, onto the second bobbin of the pair;
placing pairs of bobbins on spindles of a loom, the pairs of bobbins being arranged on the spindles as a function of a primary structure,
forming the primary structure on the loom, the primary structure corresponding to the bottom of the fibrous architecture;
placing a support conforming with the tubular part of the fibrous architecture into position on a loom;
and
using the textile materials and the loom to form the tubular part of the fibrous architecture on the support, the support being configured to support, position, and maintain the textile materials during crossover of the textile materials.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/510,557Filed 18 Nov 2010
Priority: FR 09 5815518 Nov 2009
Published: US 2012/0273085 A11 Nov 2012
Granted: 8 Jul 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

D04C 1/06
Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof: braid or lace serving particular purposes
D10B 2403/02411
Enhancing mechanical properties: with a single array of unbent yarn, e.g. unidirectional reinforcement fabrics
D10B 2505/02
Industrial: reinforcing materials; Prepregs
D04C
Braiding or manufacture of lace, including bobbin-net or carbonised lace

Family

US 2012/0273085 A1Pre-grant publication · published 1 Nov 2012
US 8,770,081 B2This patent

From the US filing history. Foreign family members aren’t listed.

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