Passenger conveyor step having an acoustic barrier
Номер патента: EP1763482A2
Опубликовано: 21-03-2007
Автор(ы): Dave Jarvis, Fred Spielman, Goldino Alves, Vijay Jayachandran
Принадлежит: Otis Elevator Co
Опубликовано: 21-03-2007
Автор(ы): Dave Jarvis, Fred Spielman, Goldino Alves, Vijay Jayachandran
Принадлежит: Otis Elevator Co
Реферат: An escalator step (12) includes a sound barrier material (40) covering over at least a portion of an inner surface (42) of a tread portion (30) and an inner surface (44) of a riser portion (32). In one example, the sound barrier material (40) comprises a sheet of vinyl. The sound barrier material (40) reduces noise radiation from the step (12) toward a cavity (26) within a passenger conveyor support structure (20) and reduces noise emanations from the cavity (26) through the steps (12). Several embodiments for securing the sound barrier material (40) in place are disclosed.
Passenger conveyor step having an acoustic barrier
Номер патента: EP1763482A4. Автор: Vijay Jayachandran,Goldino Alves,Dave Jarvis,Fred Spielman. Владелец: Otis Elevator Co. Дата публикации: 2009-11-11.