Latch assemblies and rail attachment for a pickup truck tonneau cover

A tonneau system for use with a bed of a pickup truck, the bed having opposing first and second sidewalls and also having a front sidewall extending between the first and second sidewalls at one end thereof and a rear sidewall extending between the first and second sidewalls at another end thereof, the tonneau system comprising:

• a tonneau cover having at least two tonneau sections including a first tonneau section and a second tonneau section, the tonneau sections being moveable relative to one another between an unfolded state and a folded state, in the unfolded state the tonneau sections substantially covering the cargo box, in the folded state the tonneau sections being arranged in a stack with the tonneau sections arranged one atop another;
• and
• a plurality of latch assemblies, each latch assembly including a latch base and a latch handle assembly,
• the latch handle assembly further including a handle, a clamp jaw, an adjustment member, the handle and clamp jaw supported on the adjustment member with the handle being engaged with the clamp jaw and configured to move the clamp jaw relative to the adjustment member, the adjustment member being connected at one end to the latch base;
• and
• the latch base including a belt extending about end rollers and being moveable about the end rollers in a direction generally transvers to lateral side of the tonneau cover.