Which type of safety uses an oil buffer between the car and safety planks?

The type of safety that utilizes an oil buffer between the car and safety planks is indeed Type C. This design incorporates an oil-damped system to provide a smoother and more controlled deceleration when the safety mechanisms are engaged. The oil buffer helps absorb some of the kinetic energy, reducing the impact forces that the elevator car and its passengers experience during an emergency stop. This feature enhances overall safety and comfort, making it an important consideration in modern elevator design.

The emphasis on using an oil buffer reflects advancements in elevator technology aimed at improving safety standards. Unlike other types of safety systems that may rely on purely mechanical means to halt the car, the oil buffer system incorporates hydraulic principles to dampen the motion, which can be especially beneficial in minimizing sudden jolts. This understanding of the mechanism behind Type C safety systems is essential for those in the elevator industry.