| 摘要 |
A lumbar support device (10) has a seat frame (12), a pair of brackets (18, 20) connected to the seat frame, a spring assembly (22) connected to the pai r of brackets in such a manner as to form a center section (28) traversing the seat frame and a pair of cantilevered ends (24, 26) on opposite sides of the center section, and an actuator assembly (30) operatively connecting the cantilevered ends. The pair of brackets respectively provide a pair of fulcrums (32, 34) about which the cantilevered ends can rotate. In operation , the actuator assembly moves the cantilevered ends of the spring assembly to bow the center portion. The lumbar support device may also have a single cantilevered end.
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