AUTOMATIC HAND BRAKE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a device engageable with a hand brake assembly and automatically actuating and applying the brake of a railroad vehicle. SOLUTION: The automatic hand brake device engageble with the hand brake assembly 20 and adapted for automatically applying at least one brake device fixed to the railroad vehicle having such a hand brake assembly 20 includes actuation means 30, at least a portion of which engages at least one of the gears of a gear assembly 40 disposed in the housing member 16 of the hand brake assembly 20, for actuating the gear assembly 40 in the direction to apply the brake device. To periodically supply a predetermined pressure to the actuation means 30 in order to apply the brae device, a source 50 of fluid pressure is connected to the actuation means 30. Means 60 are connected to the source 50 of fluid pressure for automatically applying the brake device by triggering the supply of the predetermined pressure to the actuation means 30.