US 2023/0220595 A1Published application

Method for manufacturing a product provided with a cavity, product and system for the manufacture thereof

AssigneeMat Product & Technology, S.L.

InventorsColin BELL, Xavier MATEU CODINA

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Abstract

The product manufactured according to the method is waterproof and provided with a cavity, such as a glove, shoe, or a backpack. Initially, a structure is made in the shape of the product by stitching portions of a laminated material attached together by corresponding seams. The stitched structure is then turned inside out and a thermally-curable silicone compound material, in uncured liquid state, is applied on the seams. The structure with applications is then simultaneously subjected to heating with a curing temperature of the material, and to a vacuum operation with pumping means that suck in air from outside the structure with applications into the structure and extract it outside. The invention also relates to a system for manufacturing according to the method.

Claims21

Dependent claims

A method for manufacturing a product that is waterproof and provided with a cavity, such as a glove, a shoe, a sports shoe, or a backpack, characterised in that first a structure is made with the shape and outer surface of the product, provided with a cavity, stitching portions of laminated material such as laminated natural or synthetic leather, and/or a laminated material based on leather, and/or a laminated textile material, and/or a laminated substrate, attached together by corresponding seams and then the following steps are carried out:

a) turning the structure inside out and applying a thermally-curable silicone compound material, in uncured liquid state, on the seams, including the stitches of the seams and the edges of the portions that form the seams, obtaining a structure with applications;
b) subjecting the structure with applications of the silicone compound material obtained in step a) to heating at a curing temperature of said material,
c) simultaneously to step b), and by means of pumping means, performing a vacuum by sucking the air from outside the structure with applications of the silicone compound material obtained in step a) into the structure through the seams thereof, and from there extracting said air outside.

A system for manufacturing a product that is waterproof and provided with a cavity, such as a glove, a shoe, a sports shoe or backpack, wherein the product comprises a structure with the shape and outer surface of the product, provided with a cavity, the structure being made up of portions of laminated material such as laminated natural or synthetic leather, and/or a laminated material based on leather, and/or a laminated textile material, and/or a laminated substrate, stitched and attached together by corresponding seams, characterised in that it comprises:

at least one hollow inner mould or skeleton the outer surface of which reproduces the inner shape of the structure of the product, the inner mould or skeleton being provided with a plurality of vacuum openings that communicate the outside of the inner mould or skeleton with the cavity thereof;
a chamber or an oven with room to arrange inside the at least one hollow inner mould or skeleton, with heating means, and
pumping means to create the vacuum inside the inner mould or skeleton, capable of being activated when the at least one hollow inner mould or skeleton is arranged inside the chamber or oven, sucking the air from outside the inner mould or skeleton into the cavity thereof through the vacuum openings and extracting said sucked air out of the cavity and the chamber or oven.

Dependencies are inferred from the claim text.