A work vehicle is disclosed that includes a front guard that is provided at a front end portion of a traveling vehicle body and protects the traveling vehicle body, and an auxiliary device that can be attached to and removed from the front guard. The front guard is provided with an attachment portion to which the auxiliary device can be attached and from which the auxiliary device can be removed.

A vehicle body structure includes a pair of side members (4) extending in a fore and aft direction on either side of a vehicle body, each side member having a hollow structure defining a hollow interior (28), and provided with a vertical outboard wall (27), a bumper beam (3) extending laterally along fore and aft ends of the side members, and curved so as to be convex on a side thereof facing away from the vehicle body, and a pair of extension members (5) each connected to a corresponding end part of the bumper beam and partly received in the hollow interior of the corresponding side member, a pair of cushioning members (72, 91, 101, 111, 123, 131) are each interposed between the corresponding extension member and the vertical outboard wall of the corresponding side member, each cushioning member being deformable in a lateral direction of the vehicle body.

The invention is related to an energy absorber which is suitable to be mounted into a bumper having metal parts and is produce from weight reduced composite material, characterized in that it comprises at least two external curvatures forming the front undulating surface, an internal curvature in connection with said external curvatures, at least a rear surface, two side surfaces, a bumper beam made of composite material having an inner support that forms three grooves between the external surfaces, the internal surface, the two side surfaces and rear surface, at least two crash boxes which absorb the energy transferred from the bumper beam during a collision, a bumper beam coupling part which enables to fix the bumper beam with each crash box, and a chassis coupling part which enables to fix each crash box to the vehicle chassis.

This composite structure is characterized in that: an internally inserted component, which is molded from a resin material having a tensile elongation of 10% or more, is placed inside a metal member having a hollow closed cross-section such that an external load can be received by both the internally inserted component and the metal member, and the outer shape of the internally inserted component occupies 50% or more relative to the hollow closed cross-section of the metal member as projection area ratio. By disposing the resin-made internally inserted component having a specific toughness at a specified state inside the metal member having a hollow closed cross-section, especially when a collision load occurs, the metal member undergoes ductile deformation and the internally inserted component also deforms correspondingly, and thus the waveform of the load-displacement curve can approach an ideal rectangular waveform, and excellent impact energy absorbing performance can be exhibited.

Safe protection equipment for all vehicles will significantly reduce the collision force by elasticity of material and strength of object with elliptical arch or dome shape, high stiff and tensile strength in that the stretchy materials will be compressed to absorb the energy and reduce the colliding force that is passed to and spread over to the object with strong strength when the vehicle hit an obstacle or two vehicles collide with each other. The reduced colliding force that is spread over a big area instead of focusing on a small spot will be passed to the frame or body of the vehicle with much less damage to the body of the vehicle and the passengers in the vehicle significantly.

This equipment will protect both vehicles and drivers without changing the current air-bag protection system. It will significantly reduce the damage for serious collision accidents.

This safe equipment can be installed on front, rear, side or corner of the vehicle to replace the bumper or cover of the vehicle door or body. Some vehicles might need to change the cover or frame design to attach the equipment properly.

Provided are: a lightweight bumper reinforcement which, with respect to the load during a collision, exhibits high rigidity against a light load and, against a heavy load, is capable of plastic deformation to absorb collision energy while effectively transferring unabsorbed energy to a crash box; a method for manufacturing the same; and a resin reinforcement member for a bumper reinforcement. The bumper reinforcement of the present disclosure comprises a body portion extending along a vehicle width direction, and a resin reinforcement portion extending along the vehicle width direction and disposed on the vehicle body side relative to the body portion. The body portion has at least one first joint portion on the vehicle body side. The resin reinforcement portion has at least one second joint portion joined to the first joint portion, and one or more reinforcement ribs projecting on the vehicle body side and extending along the vehicle width direction.

A bumper assembly is provided having a flange that overlies the body of the vehicle. The flange may be a body flange extending from an elongate bumper beam or a cladding flange extending from an external cladding that covers at least a portion of the bumper beam. The flange may protect the body from wear or corrosion, and/or bridge a gap between the frame and the body of the vehicle. The assembly may also include a contact structure for contacting at least a portion of the vehicle frame, such as the hitch beam. The contact structure may resist rotation of the bumper assembly, prevent vibration of the bumper assembly against the frame, and/or support a vertical load on the bumper. In some embodiments, the assembly may be primarily mounted to the body of the vehicle, such that the bumper beam hangs from the body of the vehicle.

A vehicle body structure includes a pair of side members (4) extending in a fore and aft direction on either side of a vehicle body, each side member having a hollow structure defining a hollow interior (28), and provided with a vertical outboard wall (27), a bumper beam (3) extending laterally along fore and aft ends of the side members, and curved so as to be convex on a side thereof facing away from the vehicle body, and a pair of extension members (5) each connected to a corresponding end part of the bumper beam and partly received in the hollow interior of the corresponding side member, a pair of cushioning members (72, 91, 101, 111, 123, 131) are each interposed between the corresponding extension member and the vertical outboard wall of the corresponding side member, each cushioning member being deformable in a lateral direction of the vehicle body.

Bumper reinforcement produced by molding a thermoplastic material and intended to be integrated into a motor vehicle front assembly between a bumper and a technical part. The bumper reinforcement comprises at least one mounting plate that is intended to bear at least one sensor, said mounting plate being integrally formed with said bumper reinforcement and connected by its perimeter thereto via a fragile material bridge such that, in the event of a frontal impact resulting in deformation of the bumper reinforcement and impacting the mounting plate, the mounting plate detaches fully or partially from the bumper reinforcement under the effect of the rupture of the material bridge.

A resin structure having an impact absorbing property includes a resin member including a resin material and having an uneven thickness structure. The resin member includes a thick-walled portion having an average thickness of a first value in an impact absorbing direction and two thin-walled portions having an average thickness of less than the first value in the impact absorbing direction. The thick-walled portion is disposed between the two thin-walled portions. The Expressions (I) and (II) are satisfied.
1<t1/t2<1.545(L/d).sup.0.107(I)
L/d>0(II) In Expressions (I) and (II), t1 represents an average thickness (mm) of the thick-walled portion. t2 represents an average thickness (mm) of the thin-walled portions. L represents an inter-connection-point distance (mm) between connection points formed on the two thin-walled portions, respectively, and connected to other structures. d represents a maximum height (mm) in the impact absorbing direction in a range between the connection points of the resin member.