| 摘要 |
The present invention relates to a lightweight seat back frame having a big ski through, which comprises: a frame body having a single plate structure; a plurality of ribs made of integrally protruding in a side of the frame body; a channel formed to a circumferential direction of the frame body, and a ski through formed by a portion of the frame body to be penetrated. Provided is the lightweight seat back frame having a big ski through, which inserts and integrates a reinforcement rod which has more glass fiber same as a material of an arm in one side end of the frame body of the surrounding wherein the ski through is formed. According to the present invention, the lightweight seat back frame having a big ski through wherein a structure is simple can reinforce strength of a fragile portion around the big ski through without an additional process, thereby having an effect of improving strength of a fragile portion as well as weight reduction. |
