To provide a washing device, a washing method and washing particles for railroad vehicles having little influence on environment, and removing dirt attached to recessed parts of irregular faces at low cost.
When water F is sprayed from a nozzle 7d of a spray device 7, washing particles C in the spray water F impinge on the uneven face 3a of an outer plate 3 of the vehicle 2. The washing particles C can intrude into the recessed parts of the uneven face 3a, and easily intrude into the recessed parts of the uneven face 3a even if a spray pressure of the water F is low, and impinge on the surface of the recessed parts, as the water F can impinge on the surfaces of the recessed parts. Dirt D like iron oxide attached to the recessed parts of the uneven face 3a is removed from the recessed parts by the action of a physical force like shearing force applied to the dirt D, caused by impingement of the washing particles C on the dirt D. This washing results to dispense with high pressure spraying of the washing particles C onto the outer plate 3, to prevent intrusion of water into the vehicles or equipment through gaps of the vehicle 2.
TANAKA MAKOTO
YAGUCHI NAOYUKI
SUZUKI MINORU
