| 摘要 |
PROBLEM TO BE SOLVED: To form a light blade linking body 1 of a hydraulic power transmission without wasting material. SOLUTION: Many linked blades 3 are blanked via branches 4 on a band- shaped linking portion 2 from a metal plate with a thickness t, the blades 3 are stood, the branch 4 portions are bent and the linking portion 2 is folded orthogonally and facilitates the folding of it, and the linking portion 2 is bent ring-shapedly and their both ends are connected to each other at a fixing portion 2a. The outer edges 3a of the blades 3 are brazed to the inner surface of a shell 5. |
