Abstract: A cutter module, the cutter module comprising a blade and a sacrificial face. The blade and the sacrificial face face each other along a cutting axis, the blade and the sacrificial face being arranged on either side of a plane of passage for a tape for cutting, and at a distance therefrom, the cutter assembly and the sacrificial face being movable in translation along the cutting axis and respectively in two opposite cutting directions in order to enter into contact in the plane of passage during a stage of cutting, the cutter assembly and the sacrificial face being movable in translation along the cutting axis and respectively in two opposite return directions in order to move away from the plane of passage after the cutting operation.

Abstract: A method of fabricating a filler body for a blade of a rotor. In addition, such a method comprises a succession of steps of adding material layer by layer, each step consisting in making a new layer of material on a preceding layer of material made in the preceding step, at least one of the steps consisting in making an openwork layer of material presenting a plurality of openings, the succession of steps of adding material layer by layer generating openwork layers of material, each having a closed outline, the respective closed outlines of the openwork layers of material touching mutually in pairs and forming a closed envelope of the filler body for the blade.

Abstract: A method of fabricating a blade spar that includes transversely at least one arrangement. A pressure-side mold and a suction-side mold are defined for each arrangement that is to be fabricated. Each mold includes at least one removable slide and a base. Each slide is then removed from a mold and the tape segments of a hank are laid by a fiber-placement method on each mold. Each mold is closed by putting the slides into place on the mold. During a finalizing step, the molds are juxtaposed and the spar is heated.

Abstract: The present invention relates to a deposition head provided with an assemblage comprising a of impregnated fibers arranged against a backing tape. The deposition head includes a slide and a movement actuator connected to the slide to move the slide in translation from a high position to a low position, said slide carrying a peeling roller, said backing tape extending over a circular arc against the peeling roller, said low position being configured so that said peeling roller presses said tape of impregnated fibers against a deposition surface only in the low position of the slide, said circular arc occupying a first angle in the low position of the slide and a second angle in the high position of the slide, said first angle being greater than said second angle.

Abstract: A monolithic blade of a rotorcraft rotor, the blade comprising at least locally an airfoil zone having a pressure side face and a suction side face. The invention is remarkable in that the blade has a root zone including a finger with a spherical bearing surface arranged at a root end of the blade, a recess suitable for receiving a laminated spherical bearing, and a flexible portion having a preferred direction of deformation in bending about a flapping axis of the blade, the flexible portion being arranged between the finger and the recess.

Abstract: A method of fabricating a filler body for a blade of a rotor. In addition, such a method comprises a succession of steps of adding material layer by layer, each step consisting in making a new layer of material on a preceding layer of material made in the preceding step, at least one of the steps consisting in making an openwork layer of material presenting a plurality of openings, the succession of steps of adding material layer by layer generating openwork layers of material, each having a closed outline, the respective closed outlines of the openwork layers of material touching mutually in pairs and forming a closed envelope of the filler body for the blade.

Abstract: A cutter module, the cutter module comprising a blade and a sacrificial face. The blade and the sacrificial face face each other along a cutting axis, the blade and the sacrificial face being arranged on either side of a plane of passage for a tape for cutting, and at a distance therefrom, the cutter assembly and the sacrificial face being movable in translation along the cutting axis and respectively in two opposite cutting directions in order to enter into contact in the plane of passage during a stage of cutting, the cutter assembly and the sacrificial face being movable in translation along the cutting axis and respectively in two opposite return directions in order to move away from the plane of passage after the cutting operation.

Abstract: A method of fabricating a spar for a blade, which spar includes transversely at least one arrangement. A male former is defined for each arrangement that is to be fabricated and each arrangement is subdivided into a pressure-side subassembly and a suction-side subassembly, each comprising a plurality of hanks, each hank comprising a plurality of U-shaped tape segments stacked on one another. Each subassembly of an arrangement is fabricated outside a mold for fabricating the blade on a single former adapted to that particular arrangement, fabrication being by stacking tape segments on the former using a fiber placement method implemented by a placement head.

Abstract: A method of fabricating a blade spar that includes transversely at least one arrangement. A pressure-side mold and a suction-side mold are defined for each arrangement that is to be fabricated. Each mold includes at least one removable slide and a base. Each slide is then removed from a mold and the tape segments of a hank are laid by a fiber-placement method on each mold. Each mold is closed by putting the slides into place on the mold. During a finalizing step, the molds are juxtaposed and the spar is heated.

Abstract: A method of fabricating a spar for a blade, which spar includes transversely at least one arrangement. A male former is defined for each arrangement that is to be fabricated and each arrangement is subdivided into a pressure-side subassembly and a suction-side subassembly, each comprising a plurality of hanks, each hank comprising a plurality of U-shaped tape segments stacked on one another. Each subassembly of an arrangement is fabricated outside a mold for fabricating the blade on a single former adapted to that particular arrangement, fabrication being by stacking tape segments on the former using a fiber placement method implemented by a placement head.

Abstract: A method of fabricating a blade spar that includes transversely at least one arrangement. A pressure-side mold and a suction-side mold are defined for each arrangement that is to be fabricated. Each mold includes at least one removable slide and a base. Each slide is then removed from a mold and the tape segments of a hank are laid by a fiber-placement method on each mold. Each mold is closed by putting the slides into place on the mold. During a finalizing step, the molds are juxtaposed and the spar is heated.

Abstract: The present invention relates to a deposition head provided with an assemblage comprising a of impregnated fibers arranged against a backing tape. The deposition head includes a slide and a movement actuator connected to the slide to move the slide in translation from a high position to a low position, said slide carrying a peeling roller, said backing tape extending over a circular arc against the peeling roller, said low position being configured so that said peeling roller presses said tape of impregnated fibers against a deposition surface only in the low position of the slide, said circular arc occupying a first angle in the low position of the slide and a second angle in the high position of the slide, said first angle being greater than said second angle.

Abstract: A monolithic blade of a rotorcraft rotor, the blade comprising at least locally an airfoil zone having a pressure side face and a suction side face. The invention is remarkable in that the blade has a root zone including a finger with a spherical bearing surface arranged at a root end of the blade, a recess suitable for receiving a laminated spherical bearing, and a flexible portion having a preferred direction of deformation in bending about a flapping axis of the blade, the flexible portion being arranged between the finger and the recess.

Abstract: A device (20) for folding a blade (5), the device comprising a fitting (30) and a cuff (50) connected to said fitting (30). The fitting (30) has at least one horizontal pin axis (31) perpendicular to a radial direction (AX2) and a clevis (35) axially offset relative to the horizontal pin axis (31) in the radial direction (AX2). The cuff (50) has an insert (51) inserted in said clevis (35), a vertical pin (70) passing through said clevis (35) and said insert (51). The cuff (50) includes at least one horizontal fastener pin axis (55) axially offset relative to said insert (51) along the radial direction (AX2), at least one lateral arm (80) connects said horizontal pin axis (31) to said fastener pin axis (55).

Abstract: The invention provides a rotary-wing aircraft rotor fitted with a connector device for connecting electrical power between a hub (1) and blades (2) of said rotor. For each of the blades (2), a wired connection (4) provides an electrical connection between the hub (1) and the blade (2). A guide path (13, 14, 15, 16, 17) holds the wired connection (4) in shape and guides it under tension to move over itself, accompanying the pivoting movement of the blade root (3).

Abstract: A rotorcraft rotor fitted with a device for damping lead-lag oscillations of the blades (2) of the rotor. The blades (2) are hinge-mounted on a rotary hub (1) of the rotor via respective sleeves (3). The damper device comprises a set of dampers (6), each individually housed in a respective one of said sleeves (3) and deformable between two fastening points (8, 9), one with the sleeve and the other with an engagement member (7) for engaging the hub (1) via a linkage (10). For each of the sleeve (3), the damper (6) housed by a given sleeve (3) is in hinged engagement with the linkage (10) via a lever arm (11) hinged to the sleeve (3).

Abstract: A method of fabricating a spar for a blade, which spar includes transversely at least one arrangement. A male former is defined for each arrangement that is to be fabricated and each arrangement is subdivided into a pressure-side subassembly and a suction-side subassembly, each comprising a plurality of hanks, each hank comprising a plurality of U-shaped tape segments stacked on one another. Each subassembly of an arrangement is fabricated outside a mold for fabricating the blade on a single former adapted to that particular arrangement, fabrication being by stacking tape segments on the former using a fiber placement method implemented by a placement head.

Abstract: A method of fabricating a blade spar that includes transversely at least one arrangement. A pressure-side mold and a suction-side mold are defined for each arrangement that is to be fabricated. Each mold includes at least one removable slide and a base. Each slide is then removed from a mold and the tape segments of a hank are laid by a fiber-placement method on each mold. Each mold is closed by putting the slides into place on the mold. During a finalizing step, the molds are juxtaposed and the spar is heated.

Abstract: A device (20) for folding a blade (5), the device comprising a fitting (30) and a cuff (50) connected to said fitting (30). The fitting (30) has at least one horizontal pin axis (31) perpendicular to a radial direction (AX2) and a clevis (35) axially offset relative to the horizontal pin axis (31) in the radial direction (AX2). The cuff (50) has an insert (51) inserted in said clevis (35), a vertical pin (70) passing through said clevis (35) and said insert (51). The cuff (50) includes at least one horizontal fastener pin axis (55) axially offset relative to said insert (51) along the radial direction (AX2), at least one lateral arm (80) connects said horizontal pin axis (31) to said fastener pin axis (55).

Abstract: Method for fabricating a reinforcing coating for a part made of composite material. Pre-impregnated reinforcing fibers are used in the form of slivers and said slivers are laid on the part in two layers of longitudinal slivers by being placed thereon. This fabrication makes provision for using an angular orientation for the slivers of each layer respectively of 0° and of some other angle relative to said determined direction of the solid body for covering using an interlaced pattern type that gives layer crossing lines parallel to a longitudinal axis of the solid body for covering, which pattern type is selected to form interlacing patterns that limit the number of layer crossing lines along the longitudinal axis of the solid body for covering to a single line.