Ratier-figeac Sas

Ratier Figeac

Bertrand Prouzet

Eric Delbos

Patrice Brion

Jean De La Bardonnie

Hélène Bergonnier

Adil Sardi

Fabien Ramirez

Cédric Meilhan

A device for assisting the opening and closing of a door in a structure. The device may comprise: a door shaft configured to rotate about a longitudinal axis thereof in both a first direction and in a second opposite direction, and configured to be mounted to the structure to form a hinge about which the door may rotate in the both the first and second directions relative to the structure; a first actuator linked to the door shaft and configured to control a speed of rotation of the door shaft in the first direction; and a second actuator linked to the door shaft and configured to drive rotation of the door shaft in the second direction. The second actuator is an electromechanical actuator.

Device for assisting door opening

A brake disk defines an annular shape having a radially inner side and a radially outer side. The brake disk includes: a radially outer braking surface, the braking surface having a maximum operating temperature; a fusible material section radially inward from and connected to the braking surface. The fusible material has a maximum operating temperature, the fusible material section suitable for transmitting torque between the braking surface and a shaft. The maximum operating temperature of the braking surface is higher than the maximum operating temperature of the fusible material section. When the temperature of the fusible material section raises above the maximum operating temperature of the fusible material section, the fusible material section is configured to no longer transmit torque between the braking surface and the shaft.

Brake disk and brake with integral thermal fuse

A dust retainer for a brake system comprising a retainer receptacle mounted integrally to one or more components of the brake assembly, wherein the retainer receptacle comprises a drum have first and second open ends, one open end being secured to a component of the brake system and the other open end being closed by a dust retainer cap, the drum defining a space within which a brake disk of the brake system is located, in use, wherein removal of the dust retainer cap allows the brake disk to be removed from the open end of the retainer drum, and a removable drawer integrated in the drum. A fastening means to removably secure brake components to each other is also disclosed.

Brake with dust retaining assembly

A brake component indicator configured to provide a visual indication of the release state of the brake component; the indicator comprising an indicator element connected to the brake component and moveable with the component during a braking operation, whereby the indicator element is provided with means to provide a visual indication of the direction and/or the distance moved by the indicator element during the braking operation. Preferably, the indicator element is in the form of a rod connected to a brake disk or pad that engages a moving part in a braking operation to brake the moving part, the rod provided with indicator means whose position is an indication of the distance the brake disk or pad has traveled to engage the moving part.

Brake assembly indicator

A system for monitoring engagement and wear in a brake include: a pin, a first marker positioned on the pin at a first location; a second marker spaced from the first marker long the pin; and a first fixed sensing arrangement. The pin extends in an axial direction parallel to the axis of rotation, and is in contact with and moves with the moveable brake pad in use. The first fixed sensing arrangement is adapted to provide a first signal when adjacent the first or second marker, and a second signal otherwise. The first and second markers and the first fixed sensing arrangement are positioned such that the second signal indicates that the brake is in the engaged position, and a change from the second signal to the first signal indicates that the moveable brake pad and the second brake pad have been worn down by a predetermined amount.

Brake monitoring system

New methods and devices are described that are aimed at preventing the outbreak of fire in a hydraulic rotor brake. These methods and devices can be used in the rotor brake of a helicopter and comprise a first and second seal, with a drain groove positioned in between these two seals to drain leaked fluid away from the hot parts of the brake. In the brakes described, the second seal is positioned closer to the heat sink of the brake than the first seal. The drain groove is also connected via a channel or channels to a drain outlet or outlets.

Hydraulic rotor brake with additional fire barrier

A brake unit comprises said rotor disc rotatable about a central axis of rotation and a first brake pad mounting element having a first end and a second end and a longitudinal outer, side, surface extending there between, wherein a first brake pad is provided at said first end of said first brake pad mounting element and positioned facing a first face of said rotor disc. The first brake pad mounting element comprises a first locking feature provided on its outer, side, surface. The brake unit further comprises first locking element that pivots about pivot and that is movable about said pivot axis so that a locking feature of said locking element can come into contact with, or be moved away from said outer, side, surface of said first brake pad mounting element.

Rotor brake

A module for a braking system includes a movable housing configured to transfer a braking force from an input shaft to an output shaft, a first movable member slidably received within the housing and connected to the output shaft, a second movable member slidably received within the housing, a first resilient member biased between the first movable member and the second movable member, such that a force applied to the second movable member is applied to the first movable member via the first resilient member, and a second resilient member biased between the second movable member and the housing, such that a force applied to the housing is applied to the second movable member via the second resilient member. The first resilient member yields or compresses upon application of a first braking force to the input shaft, and the second resilient member yields or compresses after the first resilient member.

Brake device

There is provided an apparatus for applying a braking force to a brake disc using a brake pad. The apparatus comprises a lever configured to rotate about a first fulcrum, and a pressing member attached to said lever and for urging a brake pad against a brake disc. A component is arranged and configured to ensure that said pressing member has a circular translational movement upon rotation of said lever, and a rotatable input member is configured to rotate a first member. In use, rotation of said first member causes movement of an actuating member along an first axis (A), and said axial movement of said actuating member causes said lever to rotate about said first fulcrum for applying a braking force to said brake disc.

Mechanical brake

A device according to the present invention comprises:

Device for assisting the operation of an aircraft door

A device and a control method are described for a swinging aircraft door (), mobile around a swinging axis () substantially parallel to the longitudinal axis of the aircraft via a motorized mechanism and having integrated boarding stairs (). The method includes the capture of electromagnetic or ultrasonic radiation using at least one sensor (); the detection of something on the stairs on the basis of captured electromagnetic or ultrasonic radiation, in order to deduce therefrom whether a detection condition is satisfied or not; and, driving of the motorized mechanism in order to control the closure of the door in response to a closure command except in case of detection of something on the stairway.

Control method and device for aircraft door and aircraft door incorporating same

A device for opening and closing according to the invention relates to an aircraft door () hinged around an axis () substantially parallel to the longitudinal axis the aircraft comprising a motorized mechanism and a driving system combined with a control device comprising a system for acquisition of the angular position of the door () relative to the structure () the aircraft, where said angular position acquisition system for the door comprises at least one inclinometer () combined with the door ().

Control device for opening and closing an aircraft door

Rotary-shaft brake system includes a rotary braking member attached to a rotary shaft, first and second friction members arranged on either side of the rotary braking member, each friction member being moveable between a first braking position when the friction members are in contact with the rotary braking member and a second idle position away from the rotary braking member, a bracket holding the friction members and guiding device and control device controlling movement of the friction members on the bracket. The control device comprises a linear actuator acting on at least a first lever and a solid elastically deformable element.

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Figeac, France

Bertrand Prouzet