Speed governor safety device for stopping an elevator car

摘要: A safety apparatus includes a device and centrifugal force speed governor for preventing overspeed conditions of an elevator car in both the downward direction upward direction. bracket attached to slidably retains shaft at right angle guide rail wall. U-shaped frame is end rotatably carries running wheel. compression spring extends over between bias wheel against web rail. On each side wheel, pair release levers are supported rotate during travel normal operation. In response condition, pivot into engagement with stationary ratchet wheels which connected actuating levers. The rotated by movement rotates move arm one rod, turn another on car. arms extend wedge box actuate wedge-shaped jaws engage For resetting apparatus, restarted after stop opposite travel.