Assembly for a tire comprising a three-dimensional fabric or knit and a securing element

An assembly comprising:

• a first structure formed by first filamentary elements, the first structure having a longitudinal edge extending in a first direction which defines a first axis;
• a second structure formed by second filamentary elements, the second structure having a longitudinal edge extending in a second direction which defines a second axis;
• and
• a supporting structure comprising supporting filamentary elements linking the first filamentary elements of the first structure and the second filamentary elements of the second structure,
• wherein the assembly further comprises at least one filamentary securing element interlaced with the first filamentary elements and the second filamentary elements, the at least one securing element having a first end and a second end, and at least one of the first and the second ends of the at least one securing element being free to slip relative to the first filamentary elements and the second filamentary elements,
• wherein the first axis and the second axis are parallel,
• wherein the first structure and the second structure are separated by a space, the space consisting of at most the supporting structure and the at least one filamentary securing element, and
• wherein the at least one securing element is arranged so that, when the first structure and the second structure are separated from one another so as to tauten without breaking the supporting filamentary elements, at least one of the first end and the second end of the at least one securing element slips relative to the first filamentary elements and the second filamentary elements without causing the at least one securing element to break.