A subframe assembly for a vehicle utilizing straight, parallel extruded longitudinal siderail members. This subframe assembly provides front-end (or rear-end) crash energy absorbance by plastically deforming, crumpling, and bending down to avoid the stackup and occupant cabin intrusion of components, such as the attached engine/motor, engine/motor mounts, steering components, and suspension components. The laterally disposed longitudinal siderail members each provide a straight, substantially uninterrupted lower load path to transfer crash energy from the lower load path crash management system beam and crashboxes or the like to a rear upper load path body in white bracket, and ultimately to the battery frame in the event of a crash, with the siderail members and crashboxes optionally being longitudinally coaxially aligned.

A trailer includes a housing including an internal frame and an external frame. The external frame is coupled to the internal frame. In certain embodiments, the internal frame is positioned between interior panels and exterior panels of the housing. In certain embodiments, the external frame is spaced from exterior panels.

A trailer includes a housing including an internal frame and an external frame. The external frame is coupled to the internal frame. In certain embodiments, the internal frame is positioned between interior panels and exterior panels of the housing. In certain embodiments, the external frame is spaced from exterior panels.

An air spring actuated slider pin release system for a semi-trailer slider includes an actuator shaft oriented to extend in generally parallel relationship to at least one of a pair of parallel main members, being connected to the slider for axial rotation, and having a transverse lever arm secured to each end of the shaft for common rotation. Each lever arm has an end connected to a retractable, biased lock pin via a link so that rotation of the shaft and the lever arms causes retraction of the associated lock pin relative to the main member. The actuator shaft has a normally projecting air spring bracket. An air spring is disposed between one of the main members and the air spring bracket so that inflation of the air spring acts on the air spring bracket, axially rotating the shaft and the lever arms for retracting the lock pins.

A structure of a purpose-built vehicle, includes a vehicle body cross member coupled to a floor panel in a lower side of the floor panel of a vehicle body, a frame including frame side members and a frame cross member and coupled to a lower side of the vehicle body, a plurality of connection brackets located between the vehicle body cross member and the frame cross member, and fastening bolts coupled to the connection brackets while penetrating the frame cross member and a battery casing configured to accommodate a high-voltage battery.

A lower vehicle-body structure includes: a floor cross member coupling a side sill disposed on an outer side in a vehicle width direction of a vehicle body to a floor tunnel disposed in a center in the vehicle width direction of the vehicle body; seat brackets disposed to have the floor cross member therebetween in a vehicle front-rear direction at both ends in the vehicle width direction of the floor cross member, and coupled to the side sill and the floor tunnel, respectively; and a floor frame extending in the vehicle front-rear direction and disposed on a floor panel. At least portions of the seat brackets are disposed at positions to overlap with the floor frame in a planar view.

A lower vehicle-body structure includes: a floor cross member coupling a side sill disposed on an outer side in a vehicle width direction of a vehicle body to a floor tunnel disposed in a center in the vehicle width direction of the vehicle body; seat brackets disposed to have the floor cross member therebetween in a vehicle front-rear direction at both ends in the vehicle width direction of the floor cross member, and coupled to the side sill and the floor tunnel, respectively; and a floor frame extending in the vehicle front-rear direction and disposed on a floor panel. At least portions of the seat brackets are disposed at positions to overlap with the floor frame in a planar view.

A chassis frame for an electric vehicle may include: a first frame and a second frame spaced apart from each other in a longitudinal direction of the electric vehicle; a center frame disposed between the first frame and the second frame, and configured to have side members spaced apart from each other in a widthwise direction of the electric vehicle; a first fastener which extends from the first frame, and is fastened to a first side of the side member; and a second fastener which extends from the second frame, and is fastened to a second side of the side member, wherein the first fastener and the second fastener are configured to be in contact with entire peripheries of the side member.

A chassis frame for an electric vehicle may include: a first frame and a second frame spaced apart from each other in a longitudinal direction of the electric vehicle; a center frame disposed between the first frame and the second frame, and configured to have side members spaced apart from each other in a widthwise direction of the electric vehicle; a first fastener which extends from the first frame, and is fastened to a first side of the side member; and a second fastener which extends from the second frame, and is fastened to a second side of the side member, wherein the first fastener and the second fastener are configured to be in contact with entire peripheries of the side member.

The present application discloses a wheel beam type axleless vehicle frame that comprises five sections in sequence from front to back, including a front hanging rack, a front wheel carrier, an intermediate coupling rack, a rear wheel carrier, and a rear hanging rack. Every two adjacent sections amongst the five sections are manufactured and connected in a unified and standardized integrated mode; a modular combination structure is used; and the five sections, which are independent respectively, may be assembled and adjusted according to requirements, and have sufficient strength and stiffness as well as completely independent interchangeability. The vehicle frame has the advantages that match with the needs of an electric vehicle, and thus may be used as the optimum configuration frame for the electric vehicle; and the vehicle frame may be improved according to requirements to be applicable to various fuel and hybrid electric passenger vehicles and commercial vehicles.