| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent bending of a side edge of a fin in connection with bending of a flat pipe. <P>SOLUTION: A fin (36) has a protrusion (85) that forms creases (91, 92) extending over an intermediate portion (71) formed between flat pipes (33) adjacent to each other and a connection (73) formed on the inner side of a cutout (45) to be continuous with the intermediate portion (71). <P>COPYRIGHT: (C)2012,JPO&INPIT |
