Reinforcement strip

A method for the continuous production of a grid-shaped reinforcement strip, comprising the steps of:

• a) providing at least two elongated reinforcement wires having a substantially rectangular cross section defining an upper face and an adjacent side face;
• b) providing at least one connecting wire having a substantially round cross section and having a thickness being up to the thickness of a height of the side faces of the at least two reinforcement wires;
• c) feeding the at least two reinforcement wires and the at least one connecting wire substantially continuously through a spot welding station;
• d) providing a wire guide in the welding station;
• e) orienting the at least two reinforcement wires in said feeding step so that the upper faces of the at least two reinforcement wires are substantially in the same plane and have spaced opposed side faces facing each other;
• f) bending the at least one connecting wire into a zigzag pattern with the wire guide, the wire guide moving back and forth between the at least two reinforcement wires and causing the at least one connecting wire to alternately come into substantially parallel contact with the side face of one of the at least two reinforcement wires and then the other one of the at least two reinforcement wires;
• g) spot welding the connecting wire to the spaced opposed side faces of the connecting wire substantially at the moment of the substantially parallel contact;
• and
• h) in said spot welding step, the spot welds being provided with heights up to the height of the side faces and up to the diameter of the substantially round cross section connecting wire.