A tonneau cover that includes a first panel and a second panel; a hinge located between the first panel and the second panel, the hinge includes a first link and a second link, the first link includes a pocket; the second link includes a projection that is configured to engage the pocket of the first link to connect the first link and the second link; and one or more covers extending over all or a portion of the first panel, the second panel, the first link, and the second link; the second link has a structure that is substantially similar to a structure of the first link and/or the one or more covers provide an indirect connection between the first panel and the first link.

A tonneau cover that includes a first panel, a second panel, a hinge between the first panel and the second panel, and a torsion element between the first panel and the second panel. The torsion element applies an urging force onto one or both of the first panel and the second panel during movement of the first panel and/or the second panel about the hinge.

A retractable truck bed cover having an array of parallel aluminum slats joined together by connective hinges including leading and trailing edge configuration for improving the security of the cover by covering and concealing the seam between adjacent slats while improving the connective hinge's resistance to the effects of aging and/or exposure to temperature fluctuations. The truck bed cover connective hinge slat is designed to be in an array of discrete slats, which are joined to one another by means of joiner members secured at each end to slat end caps. The distal ends of the joiner members are attached to slat end caps at the distal ends of the slats, thereby preventing the joiner members from shrinking in relationship to the slats due to aging and/or exposure to temperature fluctuations.

A top of a convertible vehicle includes at least one top element displaceable between a closed position and a storage position. Each of two side portions accommodates a closing system fixing the relevant side portion to a front apron of the vehicle or to a further top element. The closing systems are displaceable between a blocked position and a cleared position. Each closing system includes a locking hook, which interacts with a corresponding locking element and which is pivotable about a hook axis, and a drive unit, which drives a control element pivotable about a pivot axis and mounted at the relevant side portion as well as being connected to the locking hook via a coupling unit. The pivot axis of the control element and the hook axis are oriented with respect to each other in a skew fashion and the coupling unit includes at least one 3-D link.

A tonneau cover that includes a first panel, a second panel, a hinge between the first panel and the second panel, and a torsion element between the first panel and the second panel. The torsion element applies an urging force onto one or both of the first panel and the second panel during movement of the first panel and/or the second panel about the hinge.

A retractable truck bed cover having an array of parallel aluminum slats joined together by connective hinges including leading and trailing edge configuration for improving the security of the cover by covering and concealing the seam between adjacent slats while improving the connective hinge's resistance to the effects of aging and/or exposure to temperature fluctuations. The truck bed cover connective hinge slat is designed to be in an array of discrete slats, which are joined to one another by means of joiner members secured at each end to slat end caps. The distal ends of the joiner members are attached to slat end caps at the distal ends of the slats, thereby preventing the joiner members from shrinking in relationship to the slats due to aging and/or exposure to temperature fluctuations.