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

Patent metadata

Field	Value
Publication number	US-11518158-B2
Application number	US-201816757118-A
Country	US
Kind code	B2
Filing date	Oct 18, 2018
Priority date	Oct 18, 2017
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

A method for manufacturing (S) a subassembly ( 3 ) for a tire ( 4 ) comprising the following substeps: providing an assembly comprising a supporting structure ( 14 ) comprising supporting filamentary elements linking a first structure ( 10 ) of filamentary elements and a second structure ( 12 ) of filamentary elements, aligning (S 1 ) the first structure ( 10 ) and the second structure ( 12 ), securely fixing (S 4 ) the first structure ( 10 ) onto the second structure ( 12 ) using a securing element ( 18 ), and cutting (S 5 ) the assembly ( 1 ) along the securing element ( 18 ) so as to separate said securing element ( 18 ) from the rest of the assembly ( 1 ) and to obtain at least one subassembly ( 3 ) without securing element ( 18 ).

First claim

The invention claimed is:

1. 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.

2. The method for manufacturing a subassembly according to claim 1 , further comprising, prior to securely fixing the first structure onto the second structure, superposing the first axis and the second axis.

3. The method for manufacturing a subassembly according to claim 1 , wherein the first structure and the second structure each comprise a transverse edge extending transversely to the respective longitudinal edge, the method further comprising, prior to securely fixing the first structure onto the second structure, superposing the transverse edge of the first structure and the transverse edge of the second structure.

4. The method for manufacturing a subassembly according to claim 1 , wherein the first structure has two opposing transverse edges, the transverse edges extending transversely to the longitudinal edge of the first structure, and a length of the first structure being equal to a shorter distance between the transverse edges of the first structure when the first structure is laid flat, and
wherein the first structure is fixed over all or part of the length of the first structure onto the second structure.

5. The method for manufacturing a subassembly according to claim 4 , wherein the first structure is fixed over all or part of the length of the first structure onto the second structure in a direction parallel to the first axis.

6. The method for manufacturing a subassembly according to claim 5 , wherein the first structure is fixed over at least 50% of the length of the first structure onto the second structure.

7. The method for manufacturing a subassembly according to claim 6 , wherein the first structure is fixed discontinuously onto the second structure such that the securing element comprises at least two adjacent segments extending in an extension of one another.

8. The method for manufacturing a subassembly according to claim 7 , wherein the first structure is fixed onto the second structure along a spot or along linear segments.

9. The method for manufacturing a subassembly according to claim 1 , wherein the first structure is fixed onto the second structure using a technique selected from the group consisting of gluing, welding, stitching and combinations thereof.

10. The method for manufacturing a subassembly according to claim 1 , wherein the first structure is securely fixed to the second structure using at least two distinct securing elements.

11. The method for manufacturing a subassembly according to claim 10 , wherein the first structure is fixed onto the second structure along at least two securing elements which extend substantially parallel to one another.

12. The method for manufacturing a subassembly according to claim 1 , wherein the cutting step comprises the following substeps:
cutting the securing element along a first cutting line so as to obtain the subassembly without the securing element; and
cutting the securing element along a second cutting line so as to separate it from the rest of the assembly and form a second subassembly.

13. The method for manufacturing a subassembly according to claim 12 , wherein the substeps of cutting of the assembly along the first cutting line and along the second cutting line are performed simultaneously.

Assignees

• Michelin & Cie

Inventors

• Cornille Richard
• Limozin Bastien
• Rigo Sebastien

Classifications

• B32B37/0084

  Point bonding · CPC title

• B32B37/02 Primary

  characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations · CPC title

• B32B2038/008

  Sewing, stitching · CPC title

• B32B2605/18

  Aircraft · CPC title

• B32B5/26

  another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)} · CPC title