Disclosed is a guard for a trailer that utilizes a strap webbing to prevent a vehicle from underriding the trailer. The guard includes one or more straps that span the length of the trailer and may include additional structures to pre-tension the straps before a crash or supplement the tension of the straps as a vehicle crashes into the guard. When two or more straps are utilized on a single guard, the straps may be aligned parallel to each other or may form a cross shape. Additional structures may be incorporated into the guard to direct an impacting vehicle towards or away from specific features of the trailer.

A refrigeration trailer condenser protection apparatus having a pair of front rails with connection rods disposed thereon for connecting a street side bracket and a curb side bracket, the street side bracket and curb side bracket having mounting holes for mounting the protection apparatus to a lower side of the condenser unit.

A refrigeration trailer condenser protection apparatus having a pair of front rails with connection rods disposed thereon for connecting a street side bracket and a curb side bracket, the street side bracket and curb side bracket having mounting holes for mounting the protection apparatus to a lower side of the condenser unit.

A clamp assembly is provided for securing a panel or fairing to an I-beam, and comprises a pair of side blocks and a damping block having a central body and a flat surface at at least one end of the central body. The side blocks and the damping block are secured together using a single bolt. The flat surface at the end of the central body is positioned at an angle to the central body, so as to provide an angled surface for mounting of a fairing.

A mounting mechanism for mounting an underride system on a structure, comprises a pair of clamping jaws, and a first bracket including a first edge for coupling the underride system thereto. The first bracket further includes a second edge for coupling the pair of clamping jaws thereto. Wherein, the first bracket and the pair of clamping jaws define a jaw opening therebetween configured to receive at least a portion of the structure for removably mounting the underride system on the structure using the mounting mechanism.

A mounting mechanism for mounting an underride system on a structure, comprises a pair of clamping jaws, and a first bracket including a first edge for coupling the underride system thereto. The first bracket further includes a second edge for coupling the pair of clamping jaws thereto. Wherein, the first bracket and the pair of clamping jaws define a jaw opening therebetween configured to receive at least a portion of the structure for removably mounting the underride system on the structure using the mounting mechanism.

A structure of an underrun protection bound to a plurality of brackets disposed at the front or rear portion of a frame of a vehicle is disclosed. A hollow having a closed section is defined by a distal face of a longitudinal direction of the vehicle, a proximal face of the longitudinal direction, an upper face, and a lower face. Lightening holes are formed on at least one of the upper face and the lower face of the underrun protection.

A structure of an underrun protection bound to a plurality of brackets disposed at the front or rear portion of a frame of a vehicle is disclosed. A hollow having a closed section is defined by a distal face of a longitudinal direction of the vehicle, a proximal face of the longitudinal direction, an upper face, and a lower face. Lightening holes are formed on at least one of the upper face and the lower face of the underrun protection.

A retractable under-guard, for example for dual-purpose trucks that travel on-road and off-road, provides impact protection to other vehicles colliding with the truck, but is raised for off-road travel to avoid obstacles. The under-guard connects by a frame wrap to horizontal frame beam(s) of many different trucks and does not hang down in its retracted position to an extent that it interferes with off-road travel. For entering the road, the guard frame pivots downward to the desired position at or near the outer perimeter of the truck, and typically about half way between the truck frame and the ground in the space into which a lower vehicle would enter in a collision. Hook and pin systems, and/or impact plates, maintain the under-guard in proper position upon an impact. The under-guard system may automatically deploy above a predetermined truck speed, to ensure deployment when the truck re-enters the roads.

A retractable under-guard, for example for dual-purpose trucks that travel on-road and off-road, provides impact protection to other vehicles colliding with the truck, but is raised for off-road travel to avoid obstacles. The under-guard connects by a frame wrap to horizontal frame beam(s) of many different trucks and does not hang down in its retracted position to an extent that it interferes with off-road travel. For entering the road, the guard frame pivots downward to the desired position at or near the outer perimeter of the truck, and typically about half way between the truck frame and the ground in the space into which a lower vehicle would enter in a collision. Hook and pin systems, and/or impact plates, maintain the under-guard in proper position upon an impact. The under-guard system may automatically deploy above a predetermined truck speed, to ensure deployment when the truck re-enters the roads.