PURPOSE: To execute this film application at a high speed, and also, uniformly and stably by constituting the device so that a shape of the back edge face in an X-Y plane of an X axis in which the running direction of a supporting body becomes the forward direction and a Y axis in which the direction for going to the supporting body from a back bar becomes the forward direction satisfies a prescribed relational expression.
CONSTITUTION: A straight line for passing through the downstream end C of the front edge face and the upstream end A of the back edge face is formed so that the shape of the back edge face in an X-Y plane in the case of the X axis in which the upstream end A of the back edge face is an origin, and the direction for going to a supporting body W from a back bar 2 becomes the forward direction, and the Y axis in which the direction in which a straight line being orthogonal to the X axis in the origin goes to the supporting body W from the back bar 2 is the forward direction satisfies y=a(x/Lb)n. Where, 0.1≤a≤1.0, and 0.1≤n≤0.7, (x), (y), and Lb denote a distance from the origin on a cross section, a value in the Y axis direction onthe cross section, and a distance from the origin of a projection point onto the X axis of the back edge face on the cross section and 0.2≤Lb≤5.0mm, respectively.
OKUNO TETSUO
TOBISAWA SEIICHI
