Method for producing laminated glass with resin frame, and laminated glass with resin frame

Patent metadata

Field	Value
Publication number	US-2017246779-A1
Application number	US-201715440486-A
Country	US
Kind code	A1
Filing date	Feb 23, 2017
Priority date	Feb 26, 2016
Publication date	Aug 31, 2017
Grant date	—

Abstract

A method for producing a laminated glass with a resin frame includes a disposing step of disposing a laminated glass inside a shaping mold in which a cavity into which a resin material for a resin frame is injected is formed, an injection step of injecting the resin material into the cavity from a first surface side of the laminated glass or an end face side of the laminated glass, a blocking step of blocking a flow of the resin material in at least a part of a peripheral portion of the laminated glass to prevent the resin material from reaching an outer peripheral region on a second surface opposite to the first surface, and an opposing force applying step of applying an opposing force from an opposing force applying position on the second surface and inside of the outer peripheral region of the laminated glass.

First claim

1 . A method for producing a laminated glass with a resin frame, comprising:
a disposing step of disposing a laminated glass inside a shaping mold in which a cavity into which a resin material for a resin frame is injected is formed; an injection step of injecting the resin material into the cavity from a first surface side of the laminated glass or an end face side of the laminated glass; a blocking step of blocking a flow of the resin material in at least a part of a peripheral portion of the laminated glass to prevent the resin material from reaching an outer peripheral region on a second surface opposite to the first surface; and an opposing force applying step of applying an opposing force from an opposing force applying position on the second surface and inside of the outer peripheral region of the laminated glass, wherein the opposing force applies to suppress pressure applied to the laminated glass in the injection step.

2 . The method for producing a laminated glass with a resin frame according to claim 1 , wherein:
a part of the resin material injected passes through the outer peripheral region on the second surface and reaches the opposing force applying position on the second surface, thereby applying the opposing force; and
the method further comprising:
a removal step of removing the resin material on the second surface.

3 . The method for producing a laminated glass with a resin frame according to claim 1 , wherein:
the resin material injected from the first surface side or the end face side is prevented from reaching the second surface in a periphery of the laminated glass.

4 . The method for producing a laminated glass with a resin frame according to claim 3 , wherein:
the opposing force applying step is carried out by injecting a resin material from the second surface side toward the opposing force applying position, the resin material being the same as or different from the resin material in the injection step.

5 . The method for producing a laminated glass with a resin frame according to claim 3 , wherein:
an opposing force applying member is disposed on the opposing force applying position and on the outer peripheral region; the opposing force applying member blocks a flow of the resin material in the blocking step; and the opposing force applying member applies the opposing force in the opposing force applying step.

6 . The method for producing a laminated glass with a resin frame according to claim 5 , wherein:
the opposing force applying member is an elastic body which can absorb pressure applied to the opposing force applying member in the injection step.

7 . The method for producing a laminated glass with a resin frame according to claim 1 , wherein:
a peak position of inner tension in a glass plate including the second surface of the laminated glass is located within the outer peripheral region.

8 . The method for producing a laminated glass with a resin frame according to claim 1 , wherein:
the opposing force applying position is located inside a position within the second surface, the position having a peak position of inner tension in a glass plate including the second surface of the laminated glass .

9 . The method for producing a laminated glass with a resin frame according to claim 1 , wherein:
the opposing force applying position is located at least 20 mm inside from the end face of the laminated glass.

10 . The method for producing a laminated glass with a resin frame according to claim 1 , wherein:
a part of the opposing force applying position on the second surface is located inside an innermost position of the resin material within a surface on the first surface side.

11 . The method for producing a laminated glass with a resin frame according to claim 1 , wherein:
the resin material forms the resin frame covering the first surface and the end face continuously.

12 . A laminated glass with a resin frame, comprising:
a laminated glass including a first glass plate, a second glass plate, and an intermediate layer disposed between the first glass plate and the second glass plate; and a resin frame placed on at least a part of an outer peripheral portion of the laminated glass; wherein: the laminated glass includes a first surface and a second surface opposite to the first surface; and the resin frame includes a removal trace on the same plane as the second surface.

13 . The laminated glass with a resin frame according to claim 12 , wherein a surface roughness of the removal trace is at least 1.5 times as high as a surface roughness of the resin frame.

Assignees

• Asahi Glass Co Ltd

Inventors

• Okuda Jiro

Classifications

• B29L2031/778

  Windows (profiled elements for making window frames B29L2031/005, windscreens B29L2031/3052) · CPC title

• B32B2605/08

  Cars · CPC title

• B29C45/14434 Primary

  Coating brittle material, e.g. glass (B29C45/14377, B29C45/14418 take precedence) · CPC title

• B29L2031/30

  Vehicles, e.g. ships or aircraft, or body parts thereof {(vanes or blades B29L2031/08, air bags B29L2022/027)} · CPC title

• B60J1/00

  Windows; Windscreens; Accessories therefor (B60J10/00 takes precedence; air curtains instead of windows B60J9/04 {; sealing strips for windshields B60J10/70; sealing sash guides for sliding window panes B60J10/74; glass partitions inside vehicles to protect occupants against personal attack B60R21/12}) · CPC title