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JP2019015552A
RAIL WAVY WEAR MEASUREMENT DEVICE
Publication/Patent Number: JP2019015552A Publication Date: 2019-01-31 Application Number: 2017131619 Filing Date: 2017-07-05 Inventor: Ishikawa, Tomoji   Eda, Takayasu   Takaune, Chika   Assignee: EAST JAPAN RAILWAY CO   IPC: G01B21/00 Abstract: To provide a rail wavy wear measurement device that can continuously measure irregularity due to a wavy wear caused in a vertex surface of a rail.SOLUTION: As at least two rollers 12 of a plurality of rollers 12 provided in a wavy wear measurement device 100 are configured to contact with a vertex surface of a rail R corresponding to a wavy convex part of a wavy wear, the wavy wear measurement device 100 is configured to be movable on a virtual surface that includes a virtual line connecting portions where the two rollers contact with the rail R, and connects the wavy convex parts of the wavy wear. That is, the wavy wear measurement device 100 can move on the rail R so as to run along a reference surface S with a surface including the virtual line connecting the portions (wavy convex parts of the wavy wear) where the two rollers 12 of the plurality of rollers 12 contact with the rail R as the reference surface S, not relying on irregularity of the wavy wear, and thus, the wavy wear measurement 100 measures a distance to the vertex surface of the rail R from the reference surface S to enable a continuous measurement of the irregularity due to the wavy wear.SELECTED DRAWING: Figure 1