When the concatenated structural null air cleaner case of the destal and the air cleaner

摘要

PROBLEM TO BE SOLVED: To provide a coupling structure for the end of a connecting tube to an air cleaner case, assuring an improved sealing performance. ;SOLUTION: An opening 75 is provided in an air cleaner case 26 for inserting the end of a connecting tube 25, and a pawl-shaped ring part 76 extending approximately in the axial direction of the connecting tube is formed swollen at the edge of the opening 75, and a circumferential groove 77 is formed at the periphery of the end part of the connecting tube 25, and its 25 dislocation in the axial and the radial direction is suppressed by fitting the ring part 76 in this groove 77. Thereby the sealing performance of the air cleaner case and connecting tube to each other can be enhanced, which allows omission of a sealing agent applied to the coupling part between them according to conventional technique, and ease in the installing operation is improved and reduction in the manufacturing cost can be is realized.;COPYRIGHT: (C)2000,JPO