| 摘要 |
The spinner is formed of a thin film of a type and gauge that normally retains its shape but at the same time is flexible. The spinner has shrink points on opposite side edges of the rounded end portions which are offset from each other relative to the center of the body portion and which due to the distortion of the material at the shrink points form propeller-like, cupped end portions. In the method of forming the spinner, the blank is cut with the rounded end portions and narrowed body portion. The blank is formed into a propeller-like spinner with cupped blades and a propeller pitch by shrinking the film at points of the rounded end portions which are offset from each other and on opposite sides of the longitudinal center.
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