A rear impact guard includes a bumper support member configured to be coupled to a rear end of a vehicle and a horizontal bumper mounted at a lower end of the bumper support member. The bumper support member includes a generally triangular prism member having a generally triangular-shaped face, a vertical member, a horizontal member, and an angled member, and wherein the vertical, horizontal, and angled members are coupled to outer edges of the triangular-shaped face.

A rear impact guard includes a bumper support member configured to be coupled to a rear end of a vehicle and a horizontal bumper mounted at a lower end of the bumper support member. The bumper support member includes a generally triangular prism member having a generally triangular-shaped face, a vertical member, a horizontal member, and an angled member, and wherein the vertical, horizontal, and angled members are coupled to outer edges of the triangular-shaped face.

A rear impact guard configured to be coupled to a rear end of a trailer includes first, second, third, and fourth support bases coupled to a the rear end of the trailer, first, second, third, and fourth bumper support members associated with the first, second, third, and fourth support bases, respectively, and a bumper mounted to lower ends of the first, second, third, and fourth bumper support members.

A rear impact guard configured to be coupled to a rear end of a trailer includes first, second, third, and fourth support bases coupled to a the rear end of the trailer, first, second, third, and fourth bumper support members associated with the first, second, third, and fourth support bases, respectively, and a bumper mounted to lower ends of the first, second, third, and fourth bumper support members.

A safety guard is configured to extend down from a body portion of a vehicle for engaging animate and inanimate objects in order to prevent the objects from going under the vehicle. A detection system is also provided, including a plurality of sensors configured to sense an impact experienced by the safety guard and a control unit for analyzing the impact. The analysis can result in various actions being taken, including issuance of an impact warning, an evaluation on the cause of the impact, an assessment on any operator negligence associated with the impact and/or a notification regarding a need to replace the safety guard due to the impact.

A safety guard is configured to extend down from a body portion of a vehicle for engaging animate and inanimate objects in order to prevent the objects from going under the vehicle. A detection system is also provided, including a plurality of sensors configured to sense an impact experienced by the safety guard and a control unit for analyzing the impact. The analysis can result in various actions being taken, including issuance of an impact warning, an evaluation on the cause of the impact, an assessment on any operator negligence associated with the impact and/or a notification regarding a need to replace the safety guard due to the impact.

A composite material structural member including a core member, composite material members, and at least one composite material sheet. The members are disposed around the core member and are adhered to each other to form a hollow space. The composite material sheet is disposed between the core member and the members so as to overlap the bonded portion between the members. The composite material sheet forms a hollow composited structure together with the members.

An underrun protection system for arranging on a rear of a vehicle includes a crossmember and two support arms for supporting the crossmember and for mounting on a mounting structure of the vehicle. The underrun protection system further includes two connecting devices for mounting the crossmember on the support arms. The connecting devices serve as reinforcing parts for the partial reinforcement of the crossmember and/or the connecting devices are designed for adjustability along the crossmember.

An underrun protection system for arranging on a rear of a vehicle includes a crossmember and two support arms for supporting the crossmember and for mounting on a mounting structure of the vehicle. The underrun protection system further includes two connecting devices for mounting the crossmember on the support arms. The connecting devices serve as reinforcing parts for the partial reinforcement of the crossmember and/or the connecting devices are designed for adjustability along the crossmember.

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 distal panel being disposed on a distal side of a longitudinal direction of the vehicle is bound to a proximal panel being disposed on a proximal side of the longitudinal direction at engaged overlapping parts each at which an edge of a flange of the distal panel is in contact with an edge of a flange of the proximal panel. A reinforcing panel is disposed at a binder part in a hollow, the underrun protection bound to the plurality of brackets at a plurality of the binder parts such that the reinforcing panel is in contact with the inner face of one of the proximal panel and the distal panel and is in contact with the engaged overlapping part.