| 摘要 |
A partially molded corrugate tube integrally includes: a straight tube portion, a small-diameter bellows tube portion, and a large-diameter bellows tube portion of which diameter is larger than the small-diameter bellows tube portion and integrally continued to the small-diameter bellows tube portion, and configured to be bent firstly. The small-diameter bellows tube portion is integrally continued to an end of the large-diameter bellows tube portion, and the straight tube portion is integrally continued to the other end of the large-diameter bellows tube portion. The large-diameter bellows tube portion is formed shorter than the small-diameter bellows tube portion in a longitudinal direction of the tube. A thickness T of a hill portion of the large-diameter bellows tube portion is gradually reduced as the hill portion extends toward a tip. |
