Aerospatiale Societe Nationale Industrielle

Etienne Lemaire

Lucien Fantino

Georges J Cahuzac

Francedillaois Jean Monget

Jean P Ducamp

Jean-Marc Jacques Dupillier

Robert Montignac

Weaving device for producing a woven structure which is intended for the production of a composite component, including especially a component (5) for generating different speeds of movement for at least some of the warp yarns (FC). Component (5) includes a substantially plane profiled cam (5) capable of rotating about a longitudinal axis (X--X) and arranged so that the longitudinal axis (X--X) is approximately orthogonal to the direction (D) defined by the warp yarns (FC). The profile of the cam is defined by a variable transverse length (h) perpendicular to the longitudinal axis (X--X).

Weaving device for the production of a structure for a composite

A method of stitching a piece of fabric by means of a thread made of technical fiber, for the purpose of making a composite fiber-matrix piece. According to the invention: the needle thread is constituted by a flexible thread that is strong in traction; the shuttle thread is constituted by the thread of technical fiber; and the tension of the shuttle thread and the tension of the needle thread are respectively adjusted to a level that is sufficiently low and a level that is sufficiently high to ensure that after the stitch has been made, the shuttle thread projects outside the piece of fabric from the first face side thereof, and the needle thread lies completely outside the piece of fabric, likewise on the first face side thereof.

Method of stitching a piece of fabric, a piece of fabric obtained

A needle for carrying out operation with flexible cords, roves or threads, for fabricating armatures by a multi-directional weaving, the needle having an elongated body having a free end of the body, and an eye being a closed loop which extends outside the body of the needle and which is shaped and disposed relative to the body so as to avoid laterally projecting beyond the space defined by the width of the elongated body. The loop is delimited by two parallel side walls which extend transversely relative to the elongated body from a side of the elongated body and by a pin for guiding the cords, roves or threads which interconnects the two side walls.

Growing community of inventors

Saint Medard en Jalles, France

Etienne Lemaire