A semi-trailer aerodynamic drag deflection assembly for reducing aerodynamic drag upon all surfaces of the semi-trailer includes a pair of interior walls positioned against a respective one of a pair of lateral surfaces of a semi-trailer. A plurality of vents is positioned from an inner surface to an outer surface of the interior wall. A pair of exterior walls is positioned against a respective one of the pair of interior walls. An outside surface of each of the exterior walls has a plurality of indents for deflecting wind An undercarriage has a pair of side walls with a storage being positioned between each of the side walls. Each of the side walls has a plurality of fins directing aerodynamic drag from the bottom surface of the semi-trailer into each of the vents of each of the interior walls. A pair of doors provides access to the storage of the undercarriage.

The present disclosure relates to an article carrier system particularly adapted for use with a pickup truck. The system employs a first pair of support tracks secured to a roof surface of a pickup truck, and a rear spoiler portion coupled to each of the first support tracks and extending therebetween adjacent a rear area of the roof surface. A second pair of support tracks is secured to a pair of truck bed sidewalls. A combination spoiler/support subsystem is supported from the second pair of support tracks and is adjustably positionable to provide a variable spacing between the rear spoiler portion and the spoiler/support subsystem, to thus tailor the system to support articles of various lengths thereon. The rear spoiler portion and the spoiler/support subsystem provide an appearance of a single, integrated spoiler when positioned closely adjacent one another.

The present disclosure relates to an article carrier system particularly adapted for use with a pickup truck. The system employs a first pair of support tracks secured to a roof surface of a pickup truck, and a rear spoiler portion coupled to each of the first support tracks and extending therebetween adjacent a rear area of the roof surface. A second pair of support tracks is secured to a pair of truck bed sidewalls. A combination spoiler/support subsystem is supported from the second pair of support tracks and is adjustably positionable to provide a variable spacing between the rear spoiler portion and the spoiler/support subsystem, to thus tailor the system to support articles of various lengths thereon. The rear spoiler portion and the spoiler/support subsystem provide an appearance of a single, integrated spoiler when positioned closely adjacent one another.

A coupling assembly for connecting a rooftop cargo carrying system to a vehicle may include a coupler body. The coupler body may include a crossbar clamp configured to be coupled to a crossbar, the crossbar oriented transverse to a direction of vehicle travel. The coupling assembly may include a base connected to the coupler body configured to sit on a flush rail of a vehicle roof. The flush rail may be oriented generally parallel to the direction of vehicle travel. The coupling assembly may include a clip retention and adjustment mechanism connected to the coupler body with the clip retention and adjustment mechanism having an adjustment member. The clip retention and adjustment mechanism may be configured to interchangeably receive an inner clip and interchangeably receive an outer clip. The clip retention and adjustment mechanism may be further configured to rotate the received inner and outer clips with respect to the coupler body in order to grip inner and outer sides, respectively, of the flush rail by actuating the adjustment member.

A coupling assembly for connecting a rooftop cargo carrying system to a vehicle may include a coupler body. The coupler body may include a crossbar clamp configured to be coupled to a crossbar, the crossbar oriented transverse to a direction of vehicle travel. The coupling assembly may include a base connected to the coupler body configured to sit on a flush rail of a vehicle roof. The flush rail may be oriented generally parallel to the direction of vehicle travel. The coupling assembly may include a clip retention and adjustment mechanism connected to the coupler body with the clip retention and adjustment mechanism having an adjustment member. The clip retention and adjustment mechanism may be configured to interchangeably receive an inner clip and interchangeably receive an outer clip. The clip retention and adjustment mechanism may be further configured to rotate the received inner and outer clips with respect to the coupler body in order to grip inner and outer sides, respectively, of the flush rail by actuating the adjustment member.

A crossbar clamp actuator of a crossbar-to-vehicle coupler may include a horizontally traveling wedge block having a ramped, downward-facing first slide surface, and a wedge follower having a second slide surface in frictional contact with the first slide surface of the traveling wedge block. Substantially horizontal repositioning of the traveling wedge block may cause the ramped first slide surface to urge the wedge follower downward, thereby actuating a crossbar clamp.

A crossbar clamp actuator of a crossbar-to-vehicle coupler may include a horizontally traveling wedge block having a ramped, downward-facing first slide surface, and a wedge follower having a second slide surface in frictional contact with the first slide surface of the traveling wedge block. Substantially horizontal repositioning of the traveling wedge block may cause the ramped first slide surface to urge the wedge follower downward, thereby actuating a crossbar clamp.

In order to provide a roof box system (100) for a motor vehicle (11) which is easy to handle and which can be used in many different ways and which features an aerodynamically advantageous shape, it is proposed that the roof box system (100) shall include a roof (10) of a motor vehicle (11) which includes at least one ceiling element (13) which is installed on at least one roof base element (12) and an insertion element (18) with at least one outer wall. Pursuant to the invention, the at least one ceiling element (13) can be moved from an initial state to a receiving state so that an interspace (15) suitable for receiving the insertion element (18) is formed, and, in the receiving state, the insertion element (18) can be arranged in the interspace (15) so that the at least one outer wall of the insertion element (18) forms an outer surface (26, 27) of the roof box system (100).

In order to provide a roof box system (100) for a motor vehicle (11) which is easy to handle and which can be used in many different ways and which features an aerodynamically advantageous shape, it is proposed that the roof box system (100) shall include a roof (10) of a motor vehicle (11) which includes at least one ceiling element (13) which is installed on at least one roof base element (12) and an insertion element (18) with at least one outer wall. Pursuant to the invention, the at least one ceiling element (13) can be moved from an initial state to a receiving state so that an interspace (15) suitable for receiving the insertion element (18) is formed, and, in the receiving state, the insertion element (18) can be arranged in the interspace (15) so that the at least one outer wall of the insertion element (18) forms an outer surface (26, 27) of the roof box system (100).

The present disclosure relates to a roof rack load carrying bar having a channel for receiving at least one mounting member for attaching a load carrying bar accessory to the load carrying bar, the channel extending at least partly in a length direction of the load carrying bar, a first and a second cover extending in the length direction of the load carrying bar and being arranged for sealing the channel from an external environment, the first cover being attached to the load carrying bar via a first attachment interface provided at a first side of the channel, the second cover being attached to the load carrying bar via a second attachment interface provided at a second side of the channel, wherein the first and the second attachment interface being asymmetrical with respect to each other.