Laminated glass

Patent metadata

Field	Value
Publication number	US-2023227004-A1
Application number	US-202318124993-A
Country	US
Kind code	A1
Filing date	Mar 22, 2023
Priority date	Jan 19, 2017
Publication date	Jul 20, 2023
Grant date	—

Abstract

Laminated glass includes: a first glass plate having a rectangular shape, and including a first side and a second side opposing the first side; a second glass plate arranged opposing the first glass plate, and having substantially the same shape as the shape of the first glass plate; and an intermediate film arranged between the first glass plate and the second glass plate, the intermediate film including: a first bus bar extending along an end portion closer to the first side; a second bus bar extending along an end portion closer to the second side; and a plurality of heating lines arranged parallel to each other so as to connect the first bus bar and the second bus bar to each other.

First claim

1 . Laminated glass comprising:
a first glass plate having a rectangular shape, and including a first side and a second side opposing the first side; a second glass plate arranged opposing the first glass plate, and having substantially the same shape as the shape of the first glass plate; and an intermediate film arranged between the first glass plate and the second glass plate, the intermediate film comprising: a first bus bar extending along an end portion closer to the first side; a second bus bar extending along an end portion closer to the second side; a plurality of heating lines arranged parallel to each other so as to connect the first bus bar and the second bus bar to each other, and a pair of adhesion layers that sandwich the first bus bar, the second bus bar, and the heating lines, wherein at least one of a length of the plurality of heating lines, a width of the plurality of heating lines, and a space between the plurality of heating lines is adjusted such that a plurality of regions with different amounts of heat generated are formed between the first bus bar and the second bus bar.

2 . The laminated glass according to claim 1 , wherein
the laminated glass constitutes a windshield for a vehicle, and an amount of heat generated in a region opposing a driver is greater than an amount of heat generated in another region.

3 . The laminated glass according to claim 1 , wherein at least one of the heating lines is formed by combining a plurality of portions with different widths in a longitudinal direction.

4 . The laminated glass according to claim 1 , wherein at least one of the heating lines is provided with at least one curved line portion having a curved line.

5 . The laminated glass according to claim 4 , wherein the curved line portion is provided with a wave-shaped curved line.

6 . The laminated glass according to claim 4 , wherein the curved line portion is formed into a sine wave shape,
at least a portion of at least a pair of adjacent ones of the heating lines is constituted by the curved line portion, and in the adjacent curved line portions, a distance between center lines of waves that constitute the curved line portions is twice an amplitude of the curved line portions or more.

7 . The laminated glass according to claim 4 , wherein at least one of the heating lines is provided with a plurality of the curved line portions, and the curved line portions have different lengths.

8 . The laminated glass according to claim 1 , wherein at least some of the plurality of heating lines are formed such that a space therebetween differs.

9 . The laminated glass according to claim 1 , wherein at least some of the plurality of heating lines are formed so as to have different widths.

10 . The laminated glass according to claim 1 , wherein at least some of the plurality of heating lines are formed so as to have different lengths.

11 . The laminated glass according to claim 5 , wherein at least one of the heating lines is provided with a plurality of the curved line portions, and the curved line portions have different lengths.

12 . The laminated glass according to claim 6 , wherein at least one of the heating lines is provided with a plurality of the curved line portions, and the curved line portions have different lengths.

Assignees

• Nippon Sheet Glass Co Ltd

Inventors

• Chiba Kazuki
• Ogawa Ryohei
• Ogawa Hisashi

Classifications

• B32B3/02 Primary

  characterised by features of form at particular places, e.g. in edge regions {(non-uniform thickness B32B3/263)} · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• B32B17/10036 Primary

  comprising two outer glass sheets · CPC title

• B60J1/002

  with means for clear vision, e.g. anti-frost or defog panes, rain shields (window heating in H05B3/84, H05B3/86) · CPC title

• B60S1/02

  Cleaning windscreens, windows or optical devices {(wind deflectors specially adapted for preventing soiling of windows or windscreens B60J1/2002)} · CPC title