Window glass for a vehicle

Patent metadata

Field	Value
Publication number	US-2018176996-A1
Application number	US-201715837567-A
Country	US
Kind code	A1
Filing date	Dec 11, 2017
Priority date	Dec 20, 2016
Publication date	Jun 21, 2018
Grant date	—

Abstract

Window glass for a vehicle includes laminated glass including a vehicle exterior side glass plate, a vehicle interior side glass plate and an interlayer interposed between the vehicle exterior side glass plate and the vehicle interior side glass plate; and a conductor pattern including a heating wire disposed on a vehicle interior side surface of the vehicle exterior side glass plate to heat a heating area, and a feeding electrode disposed on a part of the vehicle interior side surface close to a lower side of the vehicle exterior side glass plate such that the heating wire is fed with power through the feeding electrode; wherein the feeding electrode is disposed so as not to extend into the heating area.

First claim

What is claimed is:

1 . Window glass for a vehicle, comprising:
laminated glass including a vehicle exterior side glass plate, a vehicle interior side glass plate and an interlayer interposed between the vehicle exterior side glass plate and the vehicle interior side glass plate; and a conductor pattern including a heating wire disposed on a vehicle interior side surface of the vehicle exterior side glass plate to heat a heating area, and a feeding electrode disposed on a part of the vehicle interior side surface close to a lower side of the vehicle exterior side glass plate such that the heating wire is fed with power through the feeding electrode; wherein the feeding electrode is disposed so as not to extend into the heating area.

2 . The window glass for a vehicle according to claim 1 , wherein the heating area includes a lower side heating area disposed in an area along a lower side of the laminated glass, and a lateral side heating area disposed along at least one of lateral sides of the laminated glass; and
the feeding electrode is disposed so as not to extend into the lower side heating area.

3 . The window glass for a vehicle according to claim 1 , wherein the heating wire comprises a lower side heating wire corresponding to the lower side heating area, and a lateral side heating wire corresponding to the lateral side heating area; and
the lateral side heating wire comprises a first wire for the lateral side heating wire disposed between the lower side heating wire and a lower side edge of the laminated glass, and a second wire for the lateral side heating wire disposed closer to an upper side of the laminated glass than the lower side heating wire.

4 . The window glass for a vehicle according to claim 1 , wherein the lower side heating area is an area to be heated by the lower side heating wire and a part of the first wire for the lateral side heating wire extending in parallel to the lower side heating wire.

5 . The window glass for a vehicle according to claim 1 , wherein the laminated glass comprises an exterior side surface including a first wiper wiping range to be wiped by a first wiper, and a second wiper wiping range to be wiped by a second wiper;
the lateral side heating area comprises an area corresponding to a moving direction reversing position of the second wiper; and the lower side heating area comprises an area corresponding to a standby position of the first wiper and a standby position of the second wiper.

6 . The window glass for a vehicle according to claim 1 , wherein the vehicle interior side glass plate has a formed therein so as to expose the feeding electrode disposed on a part of the vehicle interior side surface close to the lower side of the vehicle exterior side glass plate.

7 . The window glass for a vehicle according to claim 1 , wherein the feeding electrode comprises a positive electrode and a negative electrode, which are connected to the heating wires.

8 . The window glass for a vehicle according to claim 1 , wherein the conductor pattern comprises a deicer, which serves to melt frost, ice or snow adhering to the laminated glass.

9 . The window glass for a vehicle according to claim 1 , wherein the conductor pattern is disposed in an overlapping range with the shielding layer disposed on a peripheral area of the laminated glass.

10 . The window glass for a vehicle according to claim 1 , wherein the heating wire is made of a material having a resistivity of 0.5×10 −8 Ω·m to 9.0×10 −8 Ω·m.

11 . The window glass for a vehicle according to claim 1 , wherein the laminated glass has a sealing member in a lower side edge area;
the sealing member comprises an upper plate to be bonded to a lower edge of a vehicle interior side surface of the vehicle interior side glass plate, a lip part projecting toward a vehicle exterior side and having a leading edge interposed between a lower edge surface of the laminated glass and an upper edge surface of a cowl top, and a hook part extending downward so as to be curved to have a convex vehicle interior side surface and opening toward the vehicle exterior side; and the lip part having a surface exposed on the vehicle exterior side and substantially flush with the upper edge surface of the cowl top.

Assignees

• Asahi Glass Co Ltd

Inventors

• Ichida Kouichi

Classifications

• 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

• B60S1/04

  Wipers or the like, e.g. scrapers · CPC title

• H05B3/86

  the heating conductors being embedded in the transparent or reflecting material {(H05B3/845 takes precedence)} · CPC title

• B60S1/026 Primary

  using electrical means · CPC title

• B32B17/10385

  for ohmic resistance heating · CPC title