What is the purpose of the comb plate on an escalator?

The comb plate serves a crucial function in ensuring passenger safety during the boarding and alighting process on an escalator. It is designed with teeth that interlock with the escalator steps, providing a smooth transition for passengers as they enter or exit. The specific design of the comb plate helps to prevent any gaps between the escalator steps and the landing, which could pose a tripping hazard. By effectively guiding passengers and eliminating potential dangers at the entry and exit points, the comb plate plays an essential role in promoting safe use of escalators.