IP Library › Granted Patent US 12,172,343
Granted Patent B2
US 12,172,343 · App. 18/377,502 · Granted Dec 24, 2024

Kind of foam mold design for concave seat

Inventors: Baolong Shang (Shanghai, CN); Asad Ali (Troy, MI); Todd W. Waelde (Livonia, MI); Hongwei Xia (Shanghai, CN); Chandrashekar Simha (Shanghai, CN); Jiangang Zhang (Shanghai, CN); Yue Wang (Shanghai, CN)
Assignee: Lear Corporation
B29C33/16B29C44/1261B60N2/5833B60N2/5891Y10T428/24017
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Quick Facts
Patent No.
US 12,172,343
App. No.
18/377,502
Granted
Dec 24, 2024
Kind
B2
Abstract

A mold component for forming a foamed part with a three-dimensional shape includes a magnetic block having a first face that defines a curved three-dimensional surface with a hook strip-receiving recess positioned above the magnetic block. The magnetic block is configured to be placed in a mold with a hook strip placed in the hook strip-receiving recess. The hook strip has a ferrous metal-containing component such that the magnetic block attracts and holds the hook strip with the hook strip conforming to the curved three-dimensional surface. Characteristically, the mold component is configured to be applied in a molding process to mold the three-dimensional shape in the foamed part wherein the hook strip attaches to a trim cover.

Claims (23)

1. A mold component, comprising:

a magnetic block comprising a plurality of permanent magnets sized to define a three-dimensional surface and partially defining an attachment strip-receiving recess, wherein the magnetic block is configured to be placed in a mold with an attachment strip placed in the attachment strip-receiving recess, the attachment strip comprising a ferrous metal-containing component such that the magnetic block attracts and holds the attachment strip, the attachment strip conforming to the curved three-dimensional surface.

2. The mold component of claim 1 , wherein the mold component is a mold insert.

3. The mold component of claim 1 , wherein the mold component is a molding chamber section.

4. The mold component of claim 1 , wherein the three-dimensional shape is one of: a curved shape, a concave shape, or a convex shape.

5. The mold component of claim 1 , wherein the attachment strip is a hook strip comprising a backing layer and a hook layer disposed over the backing layer.

6. The mold component of claim 5 , wherein a ferrous metal-containing layer is disposed over the backing layer.

7. The mold component of claim 6 , wherein the ferrous metal-containing layer is formed from a metal-containing slurry.

8. The mold component of claim 5 , wherein the attachment strip further comprises a peelable protective layer disposed over the hook layer.

9. The mold component of claim 8 , wherein the peelable protective layer includes a ferrous metal.

10. The mold component of claim 1 , wherein the magnetic block comprises a first face that defines the three-dimensional surface and wherein the magnetic block partially fills a receiving recess of a metallic block.

11. The mold component of claim 1 , wherein thickness of each of the plurality of magnets is from about 5 mm to about 25 mm.

12. A mold component, comprising:

a metallic block defining a receiving recess;

a magnetic block configured to be positioned in the receiving recess, the magnetic block defining a three-dimensional surface and partially defining an attachment strip receiving recess; and

an attachment strip configured to be positioned in the attachment strip receiving recess, the attachment strip comprising a ferrous metal-containing component, wherein the magnetic block is configured to be positioned in a mold such that the magnetic block attracts and holds the attachment strip, the attachment strip conforming to the three-dimensional surface.

13. The mold component of claim 12 , wherein the mold component is a portion of one of: a mold insert or a molding chamber section.

14. The mold component of claim 12 , wherein the three-dimensional shape is one of: a curved shape, a concave shape, or a convex shape.

15. The mold component of claim 12 , wherein the attachment strip is a hook strip comprising a backing layer and a hook layer disposed over the backing layer.

16. The mold component of claim 15 , wherein a ferrous metal-containing layer is disposed over the backing layer.

17. The mold component of claim 16 , wherein the ferrous metal-containing layer is formed from a metal-containing slurry.

18. The mold component of claim 15 , wherein the hook strip further comprises a peelable protective layer disposed over the hook layer.

19. The mold component of claim 12 , wherein the magnetic block includes a plurality of permanent magnets sized to define the three-dimensional surface.

Continuity (2)
Continuation 17854315 · Jun 30, 2022
Related Publication 20240033976A1 · Feb 1, 2024