公开(公告)号：US11660990B1

公开(公告)日：2023-05-30

申请号：US17646074

申请日：2021-12-27

申请人： GUMCHANG CO.,LTD.

发明人： Jae Yel Song ,  Hai Tai Choi ,  Chae Sung Song ,  Se Gil Shin ,  Sung Su Park ,  Sang Ho Lee ,  Man Gi Lee ,  Se Jong Kim ,  Yong Choi ,  Young Jin Hong

IPC分类号： B60N2/66

CPC分类号： B60N2/666

摘要： A lumbar support for a vehicle seat includes: a support panel made of an elastic material and supporting the user's lumbar vertebra; a first guide rod supporting the support panel; a second link bracket fastened to the first guide rod to be movable up and down; a first link bracket disposed under the second link bracket to be movable up and down with respect to the second link bracket, and having an operation block providing a supporting force to the lumbar vertebra; a first rotary screw vertically extending, thread-fastened to the first link bracket, and moving up and down the first link bracket by rotating about a longitudinal axis; and a second rotary screw vertically extending, thread-fastened to the second link bracket, and moving up and down the second link bracket by rotating about a longitudinal axis.