Device for overmolding a core
AssigneeEtancheite Et Frottement J.Massot
InventorGuy Aubert
Life of this patent
Estimating the term…
Abstract
A method for manufacturing an object having a polymer part, including inserting a core through a movable element via a hole passing through the movable element, inserting the polymer part in a mould, inside which the movable element is arranged, so that the polymer part is in contact with the movable element on a first side of the movable element, displacing the movable element in the mould by exerting a force, originating from the polymer part, on the movable element in such a way that the movable element slides along the core, the movable element constraining, at an entrance of the hole on the first side, at each instant and as the movable element is displaced, the position of the portion of the core in the course of being covered with polymer at this instant.
Claims17
A method for manufacturing an object comprising a polymer part, the method comprising:
- inserting a core through a movable element via a hole passing through the movable element;
- inserting the polymer part in a mould inside which the movable element is arranged, so that the polymer part is in contact with the movable element on a first side of the movable element but not on a second side of the movable element;
- displacing the movable element in the mould by exerting a force, originating from the polymer part, on the movable element, in such a way that the movable element slides along the core, the movable element constraining, at an entrance of the hole on the first side, at each instant and as the movable element is displaced, the position of the portion of the core in the course of being covered with polymer at this instant so that, on the second side of the movable element, the core comprises a flexible portion in a non-fixed position and not yet aligned axially relative to the hole.
Dependencies are inferred from the claim text.