| 摘要 |
The lumbar supporter of a seat back used in a car is driven by the driving motor to adjust the height. A supporter(20) is connected to the vertical guide(10) at each end for moving up and down. The vertical guide made of hollow rod is bent to maintain a constant width. The links(30) are cross connected at the center of the supporter. A wire(42) connected to the lower part of the link is wound on the pulley(41) of the driving motor(40).
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