| 摘要 |
A tonneau cover system for a cargo box of a pickup truck having a first tonneau section, a second tonneau section, a third tonneau section, and a fourth tonneau section, each being generally coplanar in an extended position. A first hinge system hingedly couples the first and second sections to permit pivotal stacked nesting of the first section relative to the second section. A second hinge system hingedly couples the second and third sections to permit pivotal stacked nesting of the combination of the first and second sections relative to the third section. Finally, a third hinge system hingedly couples the third section to the fourth section to permit pivotal movement of the combination of the first, second, and third tonneau sections relative to the fourth section into a retracted, stacked, and rotated upward position. |
