Systems and methods for producing mesh from wires or rods with programmed changeable steps for the longitudinal and transverse wires. The longitudinal wires (1) and the transverse wires (12) may be fed from coils or be precut. The longitudinal wires are fed in receptacles (2) on carriers (3) with the carriers being found on prefeeder carrier (4), a feeder carrier (6) with grippers (7) transports them towards the welding heads (10) and the produced mesh (20) is received by a mesh carrier (14). The carriers (3) with the receptacles (2) for the longitudinal wires on the prefeeder carrier (4), the grippers for the longitudinal wires (7) at the feeder carrier (6) and the welding heads (10) are displaced in the direction of the transverse wire without restrictions, generally in an unrestricted fashion, so as to correspond to the longitudinal wires being subjected to welding. The transverse wires are fed towards the welding heads to be welded with the longitudinal wires. The machine produces meshes with openings, grouping the longitudinal wires in groups and feeding the groups of longitudinal wires towards the welding heads, adjusting the position of the related mechanisms to the position of the longitudinal wires.

A method for producing a wire mesh mat that consists of intersecting longitudinal and transverse wires and to a mesh welding facility for welding a wire mesh mat from intersecting longitudinal and transverse wires, comprising a clocked supply device for a sheet of longitudinal wires in an X direction, a feed device for transverse wires that lie perpendicular to the longitudinal wires and to a welding portal for welding the wires at their intersections.

A battery grid comprising includes a first grid member having opposite first and second side frame elements and opposite first and second end frame elements extending between the first and second side frame elements. A second grid member having opposite first and second side frame elements and opposite first and second end frame elements extending between the first and second side frame elements is attached to the first grid member. A method of making a battery grid includes attaching a first grid member to a second grid member.

An embodiment roof structure for a vehicle connected to roof sides of side structures disposed on both sides of an upper body of the vehicle includes a plurality of roof rails connected along a vehicle width direction on the roof sides and a roof panel assembly including a plurality of tailor welded blanks (TWB) roof panels disposed in positions corresponding to the roof rails, the roof panel assembly being connected to the roof sides and the roof rails.

A device for feeding transverse wires above and below a production line for mesh mats which consist of welded transverse and longitudinal wires, said device comprising an upper transverse wire feeder, which has a guide channel and which is arranged in a first position, in which transverse wires are fed along the guide channel of the production line, and comprising a lower transverse wire feeder, by means of which transverse wires can be conveyed from below to the production line, wherein a lower transverse wire store is provided, from which transverse wires can be removed by the lower transverse wire feeder, and wherein the upper transverse wire feeder is designed as a transverse wire switch, which can be pivoted at least into a second position, wherein the lower transverse wire store can be loaded with transverse wired by the transverse wire switch in the second position.