Method for manufacturing a sub-assembly for a tire comprising a three-dimensional fabric or knitted material and using a securing element

A method for manufacturing a subassembly for a tire comprising the following steps:

• providing an assembly comprising a first structure, a second structure and a supporting structure, wherein the first structure is formed by filamentary elements and has a longitudinal edge extending in a first direction which defines a first axis, wherein the second structure is formed by filamentary elements and has a longitudinal edge extending in a second direction which defines a second axis, and wherein the supporting structure comprises supporting filamentary elements linking the first structure and the second structure;
• positioning the first structure on the second structure such that the first axis and the second axis are substantially parallel to each other;
• securely fixing the first structure onto the second structure using a securing element so as to hold the first structure in position relative to the second structure and to prevent any movement of the first structure relative to the second structure;
• and
• cutting the assembly along the securing element so as to separate the securing element from a rest of the assembly and to obtain at least one subassembly without a securing element.