Abstract: A suspension arm made of an aluminum alloy extruded profile having a portion forming a bottom portion, portions forming at least two vertical walls, and a horizontal rib which connects the two vertical walls, wherein a suspension part lower end support portion is formed between the two vertical walls or at the bottom portion by removing a part of the horizontal rib. It is preferable to gradually change the interval between the two vertical walls in the portion in which the horizontal rib is removed.
Type:
Grant
Filed:
January 3, 2006
Date of Patent:
August 28, 2007
Assignees:
Aisin Keikinzoku Co., Ltd., Toyota Jidosha Kabushikikaisya