In the present applying mechanism, a part of a guide sheet 33 bulges (arches) away from an oil application roller 16, with respect to a vertical line S passing through the center of a pipe 31. In other words, in the present applying mechanism, a part of the guide sheet 33 has a shape of avoiding (bypassing) the oil application roller 16 that has a high temperature. With this, oil flowing on the guide sheet 33 is kept away from the high-temperature oil application roller 16. The present applying mechanism can include an edge 50, or gap, in the guide sheet 33 for backing-up flow of oil to before the application roller in order to ensure even distribution of the oil to the application roller. The present applying mechanism can include a narrow gap between the pipe 31 and guide sheet 33.