Fixed window glass having resin frame body, and method for manufacturing same

Patent metadata

Field	Value
Publication number	US-11673453-B2
Application number	US-202016891608-A
Country	US
Kind code	B2
Filing date	Jun 3, 2020
Priority date	Dec 12, 2017
Publication date	Jun 13, 2023
Grant date	Jun 13, 2023

Abstract

A fixed window glass assembly with a resin frame, wherein the resin frame is attached to a peripheral edge portion of a fixed window glass to be mounted to a vehicle and has a guide portion for guiding an elevating window glass, the resin frame is formed of an integrally molded product including a harder portion and a softer portion covering the harder portion, the harder portion being formed in a U-character shape in section to wrap the peripheral edge portion of the fixed window glass in a thickness direction thereof. The harder portion includes a buffer portion at a part of the peripheral edge portion of the fixed window glass to buffer stresses to be generated between the fixed window glass and the resin frame.

First claim

What is claimed is:

1. A fixed window glass assembly with a resin frame, wherein the resin frame is attached to a peripheral edge portion of a fixed window glass to be mounted to a vehicle and has a guide portion for guiding an elevating window glass, comprising:
the resin frame being formed of an integrally molded product including a harder portion and a softer portion covering the harder portion, the harder portion being formed in a U-character shape in a cross-section, which is perpendicular to a surface of the fixed window glass and an edge of the fixed window glass, to wrap the peripheral edge portion of the fixed window glass in a thickness direction thereof; and
the resin frame comprises (a) a buffer portion at a part of the peripheral edge portion of the fixed window glass to buffer stresses to be generated between the fixed window glass and the resin frame; (b) a first non-buffer portion adjacent to a first edge of the buffer portion and (c) a second non-buffer portion adjacent to a second edge of the buffer portion, the second edge of the buffer portion is opposite to the first edge of the buffer portion in a direction parallel to the surface of the fixed window glass, wherein a combined thickness perpendicular to the surface of the fixed window glass of the harder portion and the softer portion is the same for the buffer portion, the first non-buffer portion and the second non-buffer portion and a thickness perpendicular to the surface of the fixed window glass of the softer portion at the buffer portion is greater than a thickness perpendicular to the surface of the fixed window glass of the softer portion at the first non-buffer portion and the second non-buffer portion.

2. The fixed window glass assembly with a resin frame according to claim 1 , wherein the buffer portion is disposed on an interior side of the fixed window glass.

3. The fixed window glass assembly with a resin frame according to claim 1 , wherein the buffer portion comprises a portion of the harder portion.

4. The fixed window glass assembly with a resin frame according to claim 1 , wherein a part of the softer portion at the buffer portion, which part extends beyond the thickness of the softer portion in the first non-buffer portion and the second non-buffer portion, has a trapezoidal, rectangular or triangular shape in a cross-section, which is perpendicular to the surface of the fixed window glass.

5. The fixed window glass assembly with a resin frame according to claim 1 , wherein the guide portion comprises a channel, the channel being disposed on a side of the harder portion opposite to the fixed window glass, extending along a lifting or lowering direction of the elevating window glass and being formed in a U-character shape in section.

6. The fixed window glass assembly with a resin frame according to claim 1 , wherein the softer portion comprises a thermoplastic elastomer, and the harder portion comprises a thermoplastic elastomer containing fibers.

7. The fixed window glass assembly with a resin frame according to claim 1 , wherein the harder portion and the softer portion comprise a main material common thereto.

8. The fixed window glass assembly with a resin frame according to claim 7 , wherein the main material comprises polypropylene or polyvinyl chloride.

9. The fixed window glass assembly with a resin frame according to claim 1 , wherein the resin frame comprises a two-color molded product formed of the softer portion and the harder portion.

10. The fixed window glass assembly with a resin frame according to claim 1 , wherein the harder portion has a hardness of 70 to 130 in Rockwell hardness, and the softer portion has a hardness of 50 to 98 in Type A according to JIS K6253.

11. The fixed window glass assembly with a resin frame according to claim 1 , further comprising a primer layer between the harder portion and the peripheral edge portion of the fixed window glass.

12. The fixed window glass assembly with a resin frame according to claim 1 , wherein the fixed window glass comprises a single glass plate or laminated glass.

13. The fixed window glass assembly with a resin frame according to claim 1 , wherein the thickness of the softer portion at the buffer portion is the same as the combined thickness of the harder portion and the softer portion for the first non-buffer portion and the second non-buffer portion.

14. A process for manufacturing a fixed window glass assembly with a resin frame, the resin frame being integrally molded to a peripheral edge portion of a fixed window glass and including a guide portion for guiding an elevating window glass, comprising:
forming a harder portion having a U-character shape in a cross-section, which is perpendicular to a surface of the fixed window glass and an edge of the fixed window glass, to wrap the peripheral edge portion of the fixed window glass in a thickness direction thereof; and
forming a softer portion having a U-character shape in the cross-section, which is perpendicular to the surface of the fixed window glass and an edge of the fixed window glass, so as to cover the harder portion, wherein the harder portion and the softer portion are formed in a such way so that the resin frame comprises (a) a buffer portion at a part of the peripheral edge portion of the fixed window glass to buffer stresses to be generated between the fixed window glass and the resin frame; (b) a first non-buffer portion adjacent to a first edge of the buffer portion and (c) a second non-buffer portion adjacent to a second edge of the buffer portion, the second edge of the buffer portion is opposite to the first edge of the buffer portion in a direction parallel to the surface of the fixed window glass, wherein a combined thickness perpendicular to the surface of the fixed window glass of the harder portion and the softer portion is the same for the buffer portion, the first non-buffer portion and the second non-buffer portion and a thickness perpendicular to the surface of the fixed window glass of the softer portion at the buffer portion is greater than a thickness perpendicular to the surface of the fixed window glass of the softer portion at the first non-buffer portion and the second non-buffer portion.

15. The process for manufacturing a fixed window glass assembly with a resin frame according to claim 14 , wherein the forming the harder portion comprises applying a primer, then setting a primary mold for the harder portion to the fixed window glass, then injecting a molten resin for the harder portion into the primary mold, and then releasing the primary mold from the fixed window glass.

16. The process for manufacturing a fixed window glass assembly with a resin frame according to claim 14 , wherein the forming the softer portion comprises setting a secondary mold for the softer portion to the fixed window glass, then injecting a molten resin for the softer portion into the secondary mold, and then releasing the secondary mold from the fixed window glass.

Assignees

• Agc Inc

Inventors

• Takahashi Kazuhiro

Classifications

• B60J10/76

  for window sashes; for glass run channels · CPC title

• B60J10/78

  adjacent to corner pieces, mirror supports or quarter windows · CPC title

• B60J1/10 Primary

  fixedly mounted {(B60J1/085 takes precedence)} · CPC title

• B60J1/17

  vertically · CPC title

• B60J5/0402

  window frame details, including sash guides and glass runs · CPC title