Safety Components Overview

The elevator safety system comprises critical mechanical devices that protect passengers in abnormal conditions. The safety gear is mounted directly on the car frame; when activated, it wedges firmly against the guide rails to stop and hold the car in a runaway or overspeed situation. The over speed governor continuously monitors the car's actual speed via a rotating sheave. If a preset threshold is exceeded, the governor triggers the safety gear mechanically or electrically. To maintain proper rope tension, a tension device is installed at the bottom of the governor rope loop, ensuring reliable activation even at low speeds. At the bottom of the hoistway, the buffer provides the final layer of protection—typically oil or polyurethane—to absorb the kinetic energy of the car or counterweight should they overtravel beyond the lowest landing. Together, these components form a fail‑safe chain: the overspeed governor senses the danger, the safety gear applies braking force, and the buffer offers a last‑resort deceleration, ensuring passenger protection under all operating conditions.

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