Abstract: The invention relates to needleless syringe for injecting an active liquid principle. The inventive syringe comprises a container (3) closed by a movable shutter and containing the injectable liquid. Said container is initially insulated from an injector-receptacle provided with a cylinder bore (10) in which a downstream shutter is arranged and which comprises at least one protuberance reducing the section with respect to the upstream opening of the bore. The aim of said invention is to damp and prevent the downstream shutter bounce when it is disposed in the bore (10) of the receptacle.

Abstract: The invention relates to needleless syringe for injecting an active liquid principle. The inventive syringe comprises a container (3) closed by a movable shutter and containing the injectable liquid. Said container is initially insulated from an injector-receptacle provided with a cylinder bore (10) in which a downstream shutter is arranged and which comprises at least one protuberance reducing the section with respect to the upstream opening of the bore. The aim of said invention is to damp and prevent the downstream shutter bounce when it is disposed in the bore (10) of the receptacle.

Abstract: Set of equipment (1) for a motor vehicle includes an inflatable structure (2), a support (4) for the inflatable structure, elements for (6) inflating the structure in a direction of inflation (D) in order to deploy it, a plate (8) for spreading the load when an occupant of the vehicle impacts on the deployed inflatable structure, and elements for guiding the structure as it deploys so that, in the deployed configuration, the structure extends along a median directrix line (L) distinct from its direction of inflation (D). The guide elements include the side wall (12) of the structure which, in the deployed configuration, is substantially taut.

Abstract: The technical field of the invention is that of pyrotechnic actuators comprising a piston, the basic function of which is to exert a thrust so as to displace an object by shooting out the piston. More particularly, the invention relates to a pyrotechnic actuator (1, 1a, 1b, 1c) comprising a pyrotechnic-gas generator (7), a combustion chamber (3) and a piston (9) which can move in a slide chamber (5) under the effect of the said gases. The principal characteristic of this actuator is that it comprises a shut-off device (4, 4a, 4b, 4c) used after the triggering of the said actuator (1, 1a, 1b, 1c) in order, on the one hand, to close the slide chamber (5) and, on the other hand, to secure the depressurization of the combustion chamber (3).

Abstract: A damping device used for motor vehicle safety, for damping the displacement of at least one part set in motion during a collision between a motor vehicle and an external object, the part being, for example, a bumper, a steering column or a bonnet of a motor vehicle, the device comprising an actuator that is able to displace a piston and is characterized in that it includes a wire having one end connected to a fixed portion of the vehicle, the actuator, which is secured to the part to be damped, interacting with the wire in order to retard and then stop the part.

Abstract: The technical field of the invention is that of motor vehicle safety involving energy absorption systems for damping the displacement of certain parts that are put into motion at the time of a mechanical collision between the motor vehicle and an externals object. The subject of the present invention relates to an energy absorption system for safety devices in a motor vehicle, comprising a pyrotechnic gas generator and a sliding position that can be displaced in a damping chamber, the said generator being able to release gas into the said chamber in order to damp the piston. The main characteristic of this system is that the gas generator delivers a variable quantity of gas and the damping chamber comprises a pressure-regulating device that is triggered above a threshold pressure.

Abstract: The technical field of the invention is that of motor vehicle safety involving devices for cutting a structure such as, for example, an instrument panel, so as to actuate a safety device. The object of the present invention relates more specifically to a device (1) for cutting a structure in a motor vehicle comprising a linear pyrotechnic charge (5) placed inside a flattened deformable tube (6), combustion of the said charge (5) bringing about deformation of the tube (6) which increases its cross section, the said deformation causing the structure (3) to break. The main characteristic of this device is that the combustion rate of the pyrotechnic charge (5) is less than 3000 m/s.

Abstract: A safety device for lifting a bonnet of a motor vehicle in the event of a collision, the device being situated under the bonnet. The device includes a mechanism for lifting the bonnet, and a gas generator. The bonnet includes a structure allowing the bonnet in normal operation, to be opened or closed about a rotation axis. The device also includes an actuator with a mechanical means actuated using the gas generator and able to deploy the lifting mechanism.

Abstract: The technical field of the invention is that of pyrotechnic actuators comprising a piston, the basic function of which is to exert a thrust so as to displace an object by shooting out the piston. More particularly, the invention relates to a pyrotechnic actuator (1, 1a, 1b, 1c) comprising a pyrotechnic-gas generator (7), a combustion chamber (3) and a piston (9) which can move in a slide chamber (5) under the effect of the said gases. The principal characteristic of this actuator is that it comprises a shut-off device (4, 4a, 4b, 4c) used after the triggering of the said actuator (1, 1a, 1b, 1c) in order, on the one hand, to close the slide chamber (5) and, on the other hand, to secure the depressurization of the combustion chamber (3).

Abstract: The technical field of the invention is that of motor vehicle safety. The invention relates more particularly to a damping device (1) for damping the displacement of at least one part set in motion during a mechanical collision between a motor vehicle and an external object, the part being, for example, a bumper, a steering column or a bonnet of a motor vehicle, the said device (1) comprising a pyrotechnic actuator (22) that is able to displace a piston (9) and being characterized in that it includes a wire (21) having one end connected to a fixed portion (27) of the vehicle, the said actuator (22), which is secured to the said part to be damped, interacting with the said wire (21) in order to retard and then stop the part.

Abstract: The technical field of the invention is that of motor vehicle safety involving energy absorption systems for damping the displacement of certain parts that are put into motion at the time of a mechanical collision between the motor vehicle and an externals object. The subject of the present invention relates to an energy absorption system (1) for safety devices in a motor vehicle, comprising a pyrotechnic gas generator (5) and a sliding position (7) that can be displaced in a damping chamber (2), the said generator (5) being able to relaease gas into the said chamber (2) in order to damp the piston (7). The main characteristic of this system (1) is that the gas generator (5) delivers a variable quantity of gas and the damping chamber (2) comprises a pressure-regulating device (4) that is triggered above a threshold pressure.

Abstract: This set of equipment (1) for a motor vehicle comprises:

Abstract: The present invention relates to a safety device for lifting a bonnet (1) of a motor vehicle in the event of a collision, this device being situated under the said bonnet (1) and comprising a mechanism (2) for lifting the said bonnet (1) and a gas generator (31), the said bonnet (1) comprising a structure allowing it, in normal operation, to be opened or closed about an axis (10) known as the rotation axis. This device is characterized in that it comprises an actuator (3) comprising mechanical means actuated using the said gas generator (31) and able to deploy the said lifting mechanism (2).

Abstract: The invention concerns a protective assembly (1, 101) for the lower limbs (31) of a motor vehicle passenger comprising an actuating device (2, 103) secured to the vehicle and capable of displacing a rod (3, 108) which is linked to a protective system. The invention is characterized in that: i) the actuating device contains a pyrotechnic system (9); ii) the protective system comprises a protective cushion (6) mounted on a shaft (5, 105) integral with the vehicle; iii) said protective cushion is mobile in rotation under the effect of the displacement of the rod so as to accompany, in the contact zone provided between the passenger's lower limbs and said protective cushion, the movement of said lower limbs.

Abstract: The invention concerns a protective assembly (1, 101) for the lower limbs (31) of a motor vehicle passenger comprising an actuating device (2, 103) secured to the vehicle and capable of displacing a rod (3, 108) which is linked to a protective system. The invention is characterised in that: i) the actuating device contains a pyrotechnic system (9); ii) the protective system comprises a protective cushion (6) mounted on a shaft (5, 105) integral with the vehicle; iii) said protective cushion is mobile in rotation under the effect of the displacement of the rod so as to accompany, in the contact zone provided between the passenger's lower limbs and said protective cushion, the movement of said lower limbs.