Abstract:
A process for winding a filament around a winding support. The winding support has a cylindrical shape with dome-shaped longitudinal ends and a roll axis, and is held by a holding device fixed to a base. The process includes the following, occurring in synchronization, feeding a filament, by means of at least one feeding device, towards the winding support, rotating the winding support with respect to the base around a pitch axis of the winding support, rotating unlimitedly the at least one feeding device around a yaw axis of the winding support with respect to the base, and/or rotating unlimitedly the winding support around the yaw axis of the winding support with respect to the base, and rotating unlimitedly the winding support with respect to the base around the roll axis of the winding support.
Abstract:
The present disclosure provides a high-efficiency filament helical winding device, which includes a frame body and a plurality of multi-filar guides. The frame body is provided with a through-hole, the plurality of multi-filar guides distributed in a circumference along a center of the through-hole are rotationally connected to the frame body and filament is extended out from each multi-filar guide in the plurality of multi-filar guides, and the frame body is provided with a first driving mechanism that drives each multi-filar guide to rotate.
Abstract:
Method and device for manufacturing an object (1) by spinning at least one thread (5) or band with a hardenable matrix onto a core element (4), the thread (5) or band being carried by a spool (2) which rotates in relation to the core element/object (4/1) at the same time that the spool (2) moves chiefly in one specific length direction in relation to the object (1) so that the object (1) is continuously pulled off the core element (4). In addition to the movement in the specific length direction, a back and forth movement is conducted between the spool (2) and the core element/object (4/1) over a predetermined part of the core element's/object's (4/1) length so that the thread (5) or band is applied chiefly from the object's inner surface to its outer surface while forming a 4-dimensional structure.
Abstract:
A filament winding apparatus includes a hoop winding device and a helical winding device. The hoop winding device includes a disc-shaped wrapping table, a drive mechanism that rotatably drives the wrapping table, four bobbins supported along a peripheral edge of the wrapping table, and a guide member that moves and guides a fiber bundle fed from the bobbin to a mandrel arranged in an insertion hole of the wrapping table. The bobbin is axially supported in a freely rotatable manner with a chuck of a holder fixed to the wrapping table. A ratchet mechanism, which prevents over-rotation in a fiber bundle feeding direction of the bobbin, is arranged between the holder and the chuck.
Abstract:
An aircraft part manufacturing device for automated composite lamination on a mandrel surface of a tool having a rotational axis includes a mechanical supporting structure that supports multiple material delivery heads. The tool is moveable and rotatable relative to the mechanical supporting structure. The mechanical supporting structure provides for axial translation of the material delivery heads relative to the mandrel surface while the mandrel surface is rotated for laying down courses of composite material over the entire mandrel surface of the tool. The position and movement of each of the plurality of material delivery heads is individually adjustable. Arm mechanisms provide motion of each material delivery head in a direction normal to the mandrel surface; rotation about an axis normal to the mandrel surface; circumferential position adjustment in a hoop direction relative to the mandrel surface; and axial position adjustment relative to the other material delivery heads.
Abstract:
Method of producing spring wires shaped as a cylinder. The wire includes at least one first plurality of layers of wound fibres, the layers being disposed on top of one another and impregnated with a matrix. The first plurality of layers includes at least two stacked layers of fibres which are wound in opposing directions along two coaxial helices around the same axis to the left and right thereof respectively. The tangents to the two helices together with the axis (10) form respectively two angles having values βx−1 and βx which are respectively equal to Δ+kγ and −Δ−kγ, γ being a function of the value of the modulus of elasticity for the spring to be produced and k being a factor of between 0 and 1. The method is suitable for the production of helical cylindrical-type spring wires for the suspension systems of motor vehicles.
Abstract:
A breathing circuit component includes an inlet, an outlet and an enclosing wall. The enclosing wall defines a gases passageway between the inlet and the outlet. At least a region of the enclosing wall is formed from a breathable material that allows the passage of water vapour without allowing the passage of liquid water or respiratory gases. The breathing circuit component may be the expiratory limb of a breathing circuit.
Abstract:
A breathing circuit component includes an inlet, an outlet and an enclosing wall. The enclosing wall defines a gases passageway between the inlet and the outlet. At least a region of the enclosing wall is formed from a breathable material that allows the passage of water vapor without allowing the passage of liquid water or respiratory gases. The breathing circuit component may be the expiratory limb of a breathing circuit.
Abstract:
Method and device for the manufacture of rod-shaped constructional elements of large extension. A core of foam material, inherently stable at right angles to its longitudinal extension, is guided horizontally. At least one dry unidirectional layer of fibres is applied on to the surface of the core. The surface of the unidirectional layer of fibres is wetted with synthetic resin. At least one braided hose with dry fibres crossing one another at an angle is applied on to the wetted surface. The strand manufactured in this way is separated into predetermined sections. The separated strand is held in the desired configuration of the constructional elements during hardening of the synthetic resin.
Abstract:
A connecting element, such as a bearing shell, is secured to and end of anrticle of manufacture having a large length relative to its diameter, by a combination of fiber strands or belts forming at least one loop, the ends of which form slings or bights which are anchored to the article by the turns of an anchoring winding extending around the article and through the slings or bights. The loop with its slings or bights is made simultaneously with the formation of the anchoring winding. This type of operation is possible because the turns of the anchoring winding hold down the fiber strands or belts as they are doubled-up to form the loop, preferably endless loops.