Method for moulding a flush profiled bead on a glazing member and moulding device for said method

A molding device and molding technology, applied in the field of insert injection molding of components to produce glass windows, can solve problems such as increased manufacturing costs, window cracks, etc.

Inactive Publication Date: 2018-10-23
SAINT-GOBAIN GLASS FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method and this device have significant disadvantages, namely, often need to carry out the redressing operation manually by the operator, because the outer skin of profiled strip then often presents defects in the area corresponding to the presence of the seal in the molding cavity, thereby increasing manufacturing cost
[0007] attached figure 1 The method and ap...

Method used

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  • Method for moulding a flush profiled bead on a glazing member and moulding device for said method
  • Method for moulding a flush profiled bead on a glazing member and moulding device for said method
  • Method for moulding a flush profiled bead on a glazing member and moulding device for said method

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Embodiment Construction

[0052] The present invention relates to the formation of glazing, especially vehicle glazing, by manufacturing a profiled strip of flexible plastics material by molding at the periphery of the window.

[0053] The plastic material from which the profiled strips are made can be thermoplastic (PVC, TPE, etc.), polyurethane, or even synthetic rubber of the EPDM type, or any other suitable material.

[0054] The molding strip is usually arranged around the entire periphery of the window, but this molding strip may also be positioned on only a part of the periphery of the glazing, or on any part of the glazing.

[0055] A glazing consisting at least of a window and a molding strip, and any possible accessories that may be present, in particular accessories for fixing the glazing or elements for strengthening the glazing, such as plastic or metal inserts, the glazing being intended to close the window opening, Window openings provide separation between interior and exterior spaces. ...

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Abstract

The invention relates to a method for moulding a profiled bead on the edge of a window (1), in which a plastic material constituting said profiled bead is introduced into a moulding cavity (2), said moulding cavity (2) being delimited partly by said window (1) and partly by walls of a mould (3) comprising at least a fixed mould part (30) and a movable mould part (32) that is movable relative to the fixed mould part (30), said mould parts cooperating in the closed state of the mould with said window (1) to form said moulding cavity (2), said moulding cavity (2) comprising a contact between a part of the mould (30, 32) and a rim (14) of said window (2) and a part of the mould (30, 32) comprising at least one seal (4) situated close to said contact and outside said moulding cavity (2), said seal (4), when viewed in cross section, having a total width (1) that is in contact with said window (1) when said mould (3) is closed and a total thickness (e), characterised in that said seal (4) has, when said mould (3) is open, a ratio of width (l) to thickness (e) of between 1.5 and 25.0, including these values, or indeed of between 2.0 and 25.0, including these values, or indeed between 4.0 and 25.0, including these values.

Description

technical field [0001] The invention relates to the field of insert injection molding of components in order to produce glazing. [0002] The invention relates more particularly to the formation of glazing, and especially vehicle glazing, by insert injection molding on the edges of windows to produce profiles. [0003] The present invention relates more particularly to a method and a device for molding a profiled strip at the edge of a window, in which method the plastic material forming said profiled strip is introduced into a molding cavity by injection, said mold The cavity is delimited partly by the window and partly by the walls of the mould, the mold comprising at least: a fixed mold part and a movable mold part movable relative to the fixed mold part, when the mold is in a closed state, the mold part and the said window cooperates to form said molding cavity, said molding cavity comprising contact between a mold part and an edge corner of said window; and a mold part c...

Claims

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Application Information

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IPC IPC(8): B29C45/14
CPCB29C45/14418B29C45/14434
Inventor A.埃尼翁N.库泰利耶-勒克莱尔
Owner SAINT-GOBAIN GLASS FRANCE
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