초록 ▼

An elevator brake includes a fluid enclosure that provides a force to counter a braking force. In a particular embodiment, the fluid enclosure functions as a fluid pressure amplifier between a controllable actuator and a braking surface. The fluid enclosure increases the force of the actuator such t

An elevator brake includes a fluid enclosure that provides a force to counter a braking force. In a particular embodiment, the fluid enclosure functions as a fluid pressure amplifier between a controllable actuator and a braking surface. The fluid enclosure increases the force of the actuator such that smaller, more controllable actuators may be used to control the brake.

대표청구항 ▼

[What is claimed is:] [1.]a braking surface disposed proximate to a complementary surface;biasing means engaged with the braking surface to apply a first force urging the braking surface toward the complementary surface;a fluid enclosure, wherein fluid pressure within the enclosure applies a second

[What is claimed is:] [1.]a braking surface disposed proximate to a complementary surface;biasing means engaged with the braking surface to apply a first force urging the braking surface toward the complementary surface;a fluid enclosure, wherein fluid pressure within the enclosure applies a second force urging the braking surface away from the complementary surface, andan actuator engaged with the fluid enclosure, wherein the fluid enclosure defines a fluid pressure amplifier disposed between the actuator and the braking surface to increase the magnitude of the force applied by the actuator to urge the braking surface away from the complementary surface.