| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a back door reinforcing structure which can further improve vibration characteristic while keeping formability. <P>SOLUTION: In the back door reinforcing structure, a back wall 330 includes a first wall 331, a second wall 332 which is arranged at a location shallower in rear side than the first wall 331, and first connection and second connection 335 connecting the first wall 331 and second wall 332. The first wall 331 and second wall 332 are arranged alternately in line along a belt line; a first vertical rib 37 and second vertical rib 38 are arranged so that they may be projected from the second wall 332; and horizontal rib is arranged in a region composed by the first connection, the second connection and second wall. <P>COPYRIGHT: (C)2013,JPO&INPIT |
