| 摘要 |
In an intake manifold for a vehicle, including a plurality of branch pipes connected at their one ends to a surge tank, bent at substantially 90 degrees, and horizontally arranged in parallel to one another, and an engine mounting flange connected to the other ends of the branch pipes, particularly in that including a pair of joining members made of a synthetic resin and welded to each other, among welding margins set before welding in at least one joining member along a joining line, the welding margin in a pressing direction for a portion corresponding to an inclined portion is set larger than the welding margin in the pressing direction for the remaining zone excluding the inclined portion of the joining line.
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