Abstract: A multi-branch fitting includes at least three branches, molded from a composite material and, more precisely, from a fiber-reinforced thermoplastic or thermoset matrix. The fitting is intended for assembling components which are at an angle to one another. There are at least three flat or substantially flat branches or flanges extending radially from a joining zone, and at least one face or part of a face constituting a bearing face for one or more of the components that are to be attached. The joining zone has a cross section, in the transverse direction, in the shape of a polygon with concave sides. The connection of each of the branches or flanges with another adjacent branch or flange is achieved through a portion in the shape of a curved blade which gives the joining zone one of its concave shapes.

Abstract: A part made of a composite is intended to be subjected, through at least a point of attachment and in cooperation with connectors, to tensile and/or compressive forces. The part includes a monolithic part having a winding of fibers oriented and embedded in a matrix, and a tubular body, wherein an attachment point, based at one end of said tubular body takes the form of a strap forming a loop turning about an axis perpendicular to the axis of the tubular body, and wherein an internal wall and/or the external wall of the loop is designed to cooperate with a portion of the connector in tension and/or in compression along one or more directions.

Abstract: The single-use valve to be installed on a line for transporting a fluid includes a tubular body, which is intended to be placed on the line and contains a mobile element that is able to take up two positions in the tubular body. Each position allows the fluid to pass through the tubular body or not, one being a standby position, while the other is an active position. Inside the tubular body, a driver able to move the mobile element such that the mobile element passes from its standby position to the active position. The driver includes a pretensioned elastic device. Outside the tubular body, a device for maintaining the pretension connects to a controller able to deactivate the device for maintaining the tension.

Abstract: The device, for reinforcing the area of a part that serves to transmit force, includes two elements for clamping the part. The part can be made of a composite material with reinforcement fibers embedded in a resin. The force transmitted is in the drape-forming plane of the reinforcement fibers of the part. The two elements are at a portion of the part, and at least one linking body connects the two elements with pre-stress so as to generate compression at the portion. At least one linking body is secured to another part with a view to transmitting force.

Abstract: The invention relates to an L-shaped fitting obtained after molding a composite material, including two portions defining an angle therebetween and having holes formed therein for connecting the two portions using an attachment device, and having side reinforcements in the form of brackets. At least one portion has a concave curved profile on the inner side of the fitting, and the hole(s), formed in the portion having a concave curved profile on the inner side are each formed along an axis radial to the curvature.

Abstract: A mechanical transmission device for transmitting a threshold force, comprising first and second elements rotatably mounted relative to each other about an axis of rotation, and having a transmitter member interposed between them to constrain the two elements to rotate together when a torque is imparted to one up to a threshold torque beyond which the two elements become movable in rotation. The transmitter member has a first friction disk constrained to rotate with the first element, and a second friction disk facing the first disk. It also has a bearing member that is axially movable to press the disks together and against a bearing turntable of the first element under drive from a presser member. Finally, it has a rotary drive, interposed between the bearing member and the second element, which are arranged to cause the bearing member to move axially against the presser member during rotation.

Abstract: The spring device includes a part using the resilient properties of the material from which the part is made. There are at least two opposite points or areas, which are to be biased. The device includes, between the points or areas, an intermediate portion including a mesh structure resulting from the assembly of optionally rectilinear segments, at least two of which lie in separate planes, both outside of the direction of bias. During the biasing, one segment is longitudinally biased by compression and the other is longitudinally biased by pulling.

Abstract: A multi-branch fitting includes at least three branches, molded from a composite material and, more precisely, from a fiber-reinforced thermoplastic or thermoset matrix. The fitting is intended for assembling components which are at an angle to one another. There are at least three flat or substantially flat branches or flanges extending radially from a joining zone, and at least one face or part of a face constituting a bearing face for one or more of the components that are to be attached. The joining zone has a cross section, in the transverse direction, in the shape of a polygon with concave sides. The connection of each of the branches or flanges with another adjacent branch or flange is achieved through a portion in the shape of a curved blade which gives the joining zone one of its concave shapes.

Abstract: A part made of a composite is intended to be subjected, through at least a point of attachment and in cooperation with connectors, to tensile and/or compressive forces. The part includes a monolithic part having a winding of fibers oriented and embedded in a matrix, and a tubular body, wherein an attachment point, based at one end of said tubular body takes the form of a strap forming a loop turning about an axis perpendicular to the axis of the tubular body, and wherein an internal wall and/or the external wall of the loop is designed to cooperate with a portion of the connector in tension and/or in compression along one or more directions.

Abstract: The fixing device for the assembly and quick release of objects includes a holding element that can be fixed to one of the objects to be held together, and a retaining device that can be fixed to another one of the objects to be held together and engage the holding element. The retaining device includes a plurality of separable parts that can be held closely together around the holding element by a disengageable pre-tensioning device. The separable parts are connected to each other by an elastically deformable mechanisms which stretch to in order to draw the parts located at a distance from each other together, while the pre-tensioning device includes a link wound around the parts in order to keep them closed on the holding element, at least one end of the link being fixed to a tensioning mechanism.

Abstract: Friction device includes at least two members, one of which is mobile, or potentially mobile, in terms of relative displacement with respect to the other under the action of an external stimulus. The relative displacement is liable to cause the relative displacement of two friction surfaces subjected to pressing forces, so as to convert the external stimulus into a friction force and to thus control the displacement of the mobile or potentially mobile member. The pressing forces are produced by pre-stressing mechanisms and the members are able to act on the effects of the pre-stressing mechanisms so as to use the resultant effect of the relative displacement of the mobile or potentially mobile member to reduce the pressing forces.

Abstract: The invention relates to a shock-absorber device intended to connect two parts, one part moves relative to the other part, owing solely to an initial temporary thrust provided by a driving device, thereby shifting from an initial position to an end position. The device includes a mechanical system connecting the parts in relative movement, which also includes a kinetic energy accumulator designed to be supplied by the above-mentioned initial thrust, and to return at least the exact amount of energy required to allow the mobile one part to reach the end position.

Abstract: The invention relates to a belayer/descender safety device (1), cooperating with a rope (2), comprising means (5) to hold said rope (2) and rotationally fixed to a chassis (6) on which enclosure means (10) for said rope (2) are mounted with pivoting and cooperating with said holding means (5). The enclosure means (10) and the chassis (6) comprise a housing (12) in opposition in the locking position which cooperates with a hook means, in particular, a spring hook, wherein said holding means (5) has the form of a pulley housing means for regulation of the speed of rotation thereof.

Abstract: The invention relates to a mechanical transmission device for transmitting a threshold force, the device comprising a first element (1; 101) and a second element (2; 102) rotatably mounted relative to each other about an axis of rotation (X), and having a transmitter member (10; 110) interposed between them to constrain the two elements to rotate together when a torque is imparted to one of the elements for transmitting the torque to the other one of the elements, up to a threshold torque beyond which the two elements become movable in rotation against an opposing torque equal to the threshold torque, the transmitter member comprising: at least a first friction disk (11; 111) constrained to rotate with the first element, and a second friction disk (12; 112) facing the first disk; a bearing member (13; 113) that is axially movable to press the disks together and against a bearing turntable (15; 115) of the first element under drive from a presser member; and rotary drive means (20, 21; 120, 121) interposed

Abstract: The invention relates to a method for manufacturing a composite part intended for being subjected, via at least one attachment point, to pulling and/or compression forces. The method includes: winding fibers on a hub so as to form a portion of the wall of the part, and creating an externally convex rounded area at the location intended to form the area for applying the pulling and/or compression forces. The forces are radial thereto. The method also includes placing an insert on the convex rounded area, the insert including the attachment point or a mechanism for rigidly connecting the attachment point, and continuing to wind fibers so as to form the rest of the wall, while covering a portion of the insert and leaving the attachment point or the mechanism for rigidly connecting the attachment point accessible.

Abstract: The invention relates to an L-shaped fitting obtained after molding a composite material, including two portions defining an angle therebetween and having holes formed therein for connecting the two portions using an attachment device, and having side reinforcements in the form of brackets. At least one portion has a concave curved profile on the inner side of the fitting, and the hole(s), formed in the portion having a concave curved profile on the inner side are each formed along an axis radial to the curvature.

Abstract: Damping skin for protecting composite parts includes a composite material having at least two superposed layers, namely a first layer formed from the juxtaposition of hollow spheres, which is intended to be applied and fixed, either directly or indirectly, to the surface of the part to be protected and a second layer covering the first and formed from a wall made of a material having plastic deformation properties.

Abstract: The invention relates to a fixing device for the assembly and quick release of objects. The device includes an attaching element that can be fixed to one of the objects to be held together, and a holder that can be fixed to the other object and designed to hold the attaching element. The holder includes a plurality of separable parts that can be held closely together around the attaching element by a disengageable pre-tensioning device. The separable parts include of parts of the holder connected to each other by an elastically deformable mechanisms which stretch to in order to draw closer the parts located at a distance from each other, while the pre-tensioning device includes a link wound around the parts in order to keep them closed on the attaching element, at least one end of the link being fixed to a tensioning mechanism.

Abstract: A braking device is designed to be mounted on a bicycle frame C with at least one wheel R with a rim (10), including a fixed support (12), two rigid arms (14G, 14D) that can move relative to the fixed support (12), and two elastic return links (16G, 16D) that are integral with the fixed support (12). The device is characterized in that each arm (14G, 14D) includes a friction member (22G, 22D) that is provided to interact with the rim (10) at the level of its lower end (20G, 20D), and a finger (24G, 24D) at the level of its upper end (18G, 18D); and each arm (14G, 14D) is connected to the fixed support (12) by the elastic return link (16G, 16D) that is interposed between its two upper ends (18G, 18D) and lower ends (20G, 20D) and the fixed support (12).

Abstract: Compression molding method for composites including the step of forming a dough under pressure, including an amalgam of non-woven fibers randomly mixed and associated, in a defined proportion, with a thermosetting or thermoplastic material. The preparation of the dough includes mixing the fibers and the thermosetting or thermoplastic material, in a vacuum, while the forming operation is carried out by introducing the dough into a mould shaped and dimensioned to withstand high pressures. There is a molding cavity in the form of a part to be produced and provided with at least one well configured so as to accommodate, tightly, a plunger piston, which, by sliding, can pressurize the dough in the cavity, and therefore form the latter in the mould.