A chassis for an autonomous mobile robot comprises a moulded frame having a stable support for any payload or additional machinery loaded on top of the mobile robot, while ensuring a rigidity of the chassis which again ensures that the supporting elements for the sensors are kept in a stable position relative to each other. The chassis has several separated compartments for EEE placement. These EEE compartments are accessible from the sides and ends of the mobile robot by removing detachable cover parts. A removable top cover is mounted on top of the moulded frame providing a top covering for central inside compartment and outside side compartments. Side covers and end covers are provided for outside compartments and are removable.

A shock-absorbing unit may include a reinforcement part made of a composite material, which has a panel shape, two opposing end portions of which are connected to the inner panel to divide the inner space into a separation space adjacent to the outer panel and a partition space adjacent to the inner panel, and which has a coupling protrusion protruding from the inner surface thereof toward the inner panel, and a shock-absorbing part made of a composite material, which has a coupling recess formed in one side thereof to receive the coupling protrusion so as to be connected to the reinforcement part in the partition space, and the opposite side of which is connected to the inner surface of the inner panel and is supported by the inner panel.

A semi-trailer for use in hauling grain has four sides and two sloped cargo areas, each having a hopper funnel made of a continuous, unitary polymer material. A door below each hopper is driven by a linear actuator that is disposed above the level of the door. The trailer sidewalls are made of a composite material having inner and outer panels attached to a center panel by adhesive.

The present invention relates to a chassis (10) for a vehicle comprising a plurality of sandwich plate elements (100) and a plurality of connection elements (200, 200′, 200a-c) for connecting said plurality of sandwich plate elements (100). Each connection element (200, 200′, 200a-c) comprises two or more recesses (210, 220) configured to receive an edge portion (160) of one of the plurality of sandwich plate elements (100). The plurality of connection elements (200, 200′, 200a-c) comprises at least one connection element (200′, 200a-c) which has at least one external surface (202a-e) provided with a connection configuration (250a-e) for a mortise and tenon type joint. A method (20) for forming a chassis (10) for a vehicle is also provided.

An embodiment floor structure of a vehicle includes a pair of side seals disposed to face each other in a vehicle width direction, and respectively disposed in a vehicle length direction, a floor frame disposed between the pair of side seals and including a pair of longitudinal frames respectively arranged along the pair of side seals and at least one transverse frame mounted between the pair of longitudinal frames in the vehicle width direction, and at least one core structural member disposed in a space provided by the floor frame and including a material for absorbing impact.

A sandwich panel floor modular structure includes a sandwich panel configured to be fixed on a floor panel of a vehicle, a center rail embedded in the sandwich panel and configured to guide a console to move in a longitudinal direction of the vehicle, and seat rails embedded in the sandwich panel and spaced apart from both sides of the center rail, the seat rails configured to guide a seat to move in the longitudinal direction of the vehicle.

A motor vehicle, in particular an at least partly electrically driven motor vehicle, has a battery device with at least one battery cell. The battery device is arranged in a floor region of the motor vehicle and has a protective device for protecting the battery device from mechanical action. The protective device has a protective plate, which is arranged in such a way that it covers the battery device at least in some regions, so that any mechanical actions are absorbed by the protective plate. The protective device also has an acoustic monitoring device, which monitors the protective plate acoustically and with which a signal can be output when a noise characteristic of a mechanical impairment of the protective plate is registered. Also disclosed is a method for monitoring the protective device.

A composite boat trailer for use in saltwater. The beams, bolts, hangers, fenders, guide poles, suspension, and bunks of the trailer are formed from a composite material that cannot rust or corrode. The trailer employs a manufacturing technique that reinforces all beams to distribute forces anticipated during the movement of a boat on the trailer at highway speeds.

A vehicle running board assembly includes, among other things, a reinforcing insert, and a beam that is extruded over the reinforcing insert. A step pad is extruded over the beam. A vehicle running board manufacturing method according to another exemplary aspect of the present disclosure includes, among other things, extruding a beam over a reinforcing insert, extruding a step pad over the beam, and cutting the beam, the reinforcing insert, and the step pad to provide the running board.

An additively manufactured structure and methods for making and using same. In a method for making the structure, a first layer structure can be formed. A second layer structure can be formed on the first layer structure and a support structure. The support structure can be removed from the second layer structure. The second layer structure can include an overhang structure that does not deform or break after the support structure is removed. The support structure can provide support to the second layer structure during printing. Strong bridging capability of the second layer structure is not required. The support structure can be quick and easy to make. The support structure can be reusable and does not add weight to the printed structure. The support structure can be easily removed after completing of printing. Installation of the support structure can be fast without significantly interfering with printing process.