A parking brake 20, for an aircraft landing gear with at least one wheel 11, has a first locking member 5, such as a pin or rod, mounted so it may move relative to a second locking member 18, such as a toothed ring, between a disengaged unlocked position, and a locked position in which the first locking member engages the second locking member to prevent wheel movement. The parking brake is configured so that the first locking member returns to the unlocked position, due to gravity or spring mechanism for example, if an actuator 8 ceases to hold the first locking member in the locked position, if actuator power supply fails for example. The second locking member may be in the form of a ring with apertures 18a, recesses or through holes, for receiving a part of the first locking member, spaced apart around its circumference. The locking pin preferably moves in a radial direction with respect to the locking ring and/or the wheel between the locked and unlocked positions. The actuator may be connected to the lock pin, and mounted to a wheel axle 17 or wheel hub 22, with the locking ring mounted to the other.
An aircraft parking brake
2021-09-08
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
PARKING BRAKE SYSTEM, METHOD OF OPERATING PARKING BRAKE SYSTEM, AND AIRCRAFT
European Patent Office | 2021
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