Tonneau cover system and lock assembly for a tonneau cover system

1 . A tonneau cover system for covering a cargo area of a vehicle, the tonneau cover system comprising:

a side rail configured to attach to a side wall of the cargo area of the vehicle, the side rail comprising a bottom wall;

a cover comprising a plurality of slats, the plurality of slats comprising a tail slat connected to a slat, the tail slat comprising one or more rollers that are supported on a top surface of the bottom wall of the side rail;

a lock assembly connected to the tail slat, the lock assembly comprising a first locking device connected to the tail slat, the first locking device comprising a first locking member that is configured to engage a bottom surface of the bottom wall of the side rail to lock or restrict movement of the cover relative to the side rail; and

wherein the side rail comprises a stop element that extends from the side rail towards a center of the cargo area, and the tail slat comprises a positive stop feature that is configured to contact the positive stop feature to restrict or prevent further movement of the cover.

2 . The tonneau cover system according to claim 1 , wherein the bottom wall comprises a locking aperture and the first locking member comprises a locking pin that engages the locking aperture to lock or restrict movement of the cover relative to the side rail.

3 . The tonneau cover system according to claim 1 , wherein the side rail is a first side rail, the side wall is a first side wall, the bottom wall is a first bottom wall, the bottom surface is a first bottom surface, the tonneau cover system includes a second side rail configured to attach to a second side wall of the cargo area of the vehicle, the second side rail includes a second bottom wall, the second bottom wall defines a second bottom surface, the lock assembly comprises a second locking device comprising a second locking member that is configured to engage the second bottom surface of the second bottom wall of the second side rail to lock or restrict movement of the cover relative to the second side rail.

4 . A tonneau cover system for covering a cargo area of a vehicle, the tonneau cover system comprising:

a side rail configured to attach to a side wall of the cargo area of the vehicle, the side rail comprising a bottom wall;

a cover comprising a plurality of slats, the plurality of slats comprising a tail slat connected to a slat, the tail slat comprising one or more rollers that are supported on a top surface of the bottom wall of the side rail;

a lock assembly connected to the tail slat, the lock assembly comprising a first locking device connected to the tail slat, the first locking device comprising a first locking member that is configured to engage a bottom surface of the bottom wall of the side rail to lock or restrict movement of the cover relative to the side rail;

wherein the side rail is a first side rail, the side wall is a first side wall, the bottom wall is a first bottom wall, the bottom surface is a first bottom surface, the tonneau cover system includes a second side rail configured to attach to a second side wall of the cargo area of the vehicle, the second side rail includes a second bottom wall, the second bottom wall defines a second bottom surface, the lock assembly comprises a second locking device comprising a second locking member that is configured to engage the second bottom surface of the second bottom wall of the second side rail to lock or restrict movement of the cover relative to the second side rail; and

wherein the lock assembly comprises a connecting rod that extends along a bottom surface of the tail slat and that connects the first locking device and the second locking device.

5 . The tonneau cover system according to claim 4 , wherein the connecting rod comprises an adjustment member to adjust a length of the connecting rod.

6 . The tonneau cover system according to claim 3 , wherein the cover comprises a hinge that connects the tail slat to the slat, and an end cap that is configured to engage a side of the tail slat, wherein the end cap contacts part of the hinge.

7 . A tonneau cover system for covering a cargo area of a vehicle, the tonneau cover system comprising:

a side rail configured to attach to a side wall of the cargo area of the vehicle, the side rail comprising a bottom wall;

a cover comprising a plurality of slats, the plurality of slats comprising a tail slat connected to a slat, the tail slat comprising one or more rollers that are supported on a top surface of the bottom wall of the side rail;

a lock assembly connected to the tail slat, the lock assembly comprising a first locking device connected to the tail slat, the first locking device comprising a first locking member that is configured to engage a bottom surface of the bottom wall of the side rail to lock or restrict movement of the cover relative to the side rail;

wherein the side rail is a first side rail, the side wall is a first side wall, the bottom wall is a first bottom wall, the bottom surface is a first bottom surface, the tonneau cover system includes a second side rail configured to attach to a second side wall of the cargo area of the vehicle, the second side rail includes a second bottom wall, the second bottom wall defines a second bottom surface, the lock assembly comprises a second locking device comprising a second locking member that is configured to engage the second bottom surface of the second bottom wall of the second side rail to lock or restrict movement of the cover relative to the second side rail;

wherein the cover includes an end cap that is configured to engage a side of the tail slat; and

wherein the end cap is configured to contact part of the second locking member.

8 . The tonneau cover system according to claim 1 , wherein the tonneau cover system comprises one or more rollers that engage an end of the tail slat, and an end cap having one or more roller slots, wherein the one or more rollers comprises one or more axles that extend through the one or more roller slots so that the end cap is between the one or more rollers and an edge of the tail slat.

9 . The tonneau cover system according to claim 6 , wherein an edge of the tail slat comprises a seal and the end cap is configured to cover at least part of the seal.

10 . The tonneau cover system according to claim 3 , wherein the first locking device or the second locking device comprises a torsion spring that is configured to store energy when the lock assembly is moved from an closed position to an open position.

11 . The tonneau cover system according to claim 9 , wherein the tonneau cover system comprises a compartment into which the cover is configured to be moved into and out of.

12 . The tonneau cover system according to claim 7 , wherein the end cap comprises one or more contact surfaces that are configured to contact the side rail to align the cover in a cross car direction.

13 . The tonneau cover system according to claim 3 , wherein the second locking device is secured to a bottom portion of the tail slat in a receiving slot.

14 . The tonneau cover system according to claim 13 , wherein the first locking device is secured to the bottom portion of the tail slat.