| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an intake pipe structure in which the relative displacement of an intake pipe due to vibration of an engine and swing of a cab can be surely absorbed, and a stress at the end of a relative displacement absorption part on the side of an air cleaner can be reduced, and which achieves reduction in a pressure loss. <P>SOLUTION: A stress relaxation part 19d is formed at the end of the relative displacement absorption part 19c on the side of the air cleaner 24, wherein the stress relaxation part 19d is configured such that inclination opening angles θ of a plurality of crest parts 19a and a plurality of root parts 19b at the end part of the relative displacement absorption part 19c on the side of the air cleaner 24 become equal to inclination opening angles θ of a plurality of crest parts 19a and a plurality of root parts 19b which are not located at the end of the relative displacement absorption part 19c on the side of the air cleaner 24, and curvature radii R' of the plurality of crest parts 19a and the plurality of root parts 19b at the end of the relative displacement absorption part 19c on the side of the air cleaner 24 become larger than the curvature radii R of the plurality of crest parts 19a and the plurality of root parts 19b which are not located at the end of the relative displacement absorption part 19c on the side of the air cleaner 24. <P>COPYRIGHT: (C)2013,JPO&INPIT |
