Granted Patent B2

US 12,454,111 · App. 17/741,639 · Granted Oct 28, 2025

Inventors: Ibrahim Valenzuela (Novi, MI); Haifeng Liu (Southfield, MI); Lisa Swikoski (Southfield, MI); Kevin M. Geisler (Southfield, MI); Michelle A. Pereny (Farmington Hills, MI); Jeanene F. Munroe (Southfield, MI)

Assignee: Lear Corporation

B29D99/0092B29C48/05B29C48/345B29C48/905D04H3/037B29C48/919

Abstract

Claims (17)

1. A method of manufacturing a vehicle seat cushion, comprising:

providing a tooling plate on a vehicle seat manufacturing system, wherein the tooling plate is selected from a plurality of tooling plates, based on a desired shape of a vehicle seat bottom cushion, wherein the tooling plate is replaced with another tooling plate according to the desired shape of the vehicle seat bottom cushion;

dispensing, through the tooling plate, a plurality of strands of a molten thermoplastic resin, wherein the tooling plate is a 3-dimensional shaped mold comprising a plurality of cooling passages and an aperture formed through the three dimensional shaped mold of the tooling plate, and wherein the aperture of the tooling plate is of a shape that matches a contour of an overall perimeter of the vehicle seat bottom cushion;

facilitating a flow of the plurality of strands through the tooling plate while restricting the flow of the plurality of strands within the contour of the tooling plate that matches the overall perimeter of the vehicle seat bottom cushion and shaping the plurality of strands into the contour of the tooling plate; and

passing a coolant through the plurality of cooling passages after shaping the plurality of strands into a meshed shape corresponding to the shape of the contour of the tooling plate, wherein the plurality of cooling passages extends towards the aperture of the tooling plate to cool the plurality of strands within the contour of the tooling plate,

wherein the plurality of strands is buckled by resisting the flow of the plurality of strands within a profile defined by the contour of the tooling plate, the buckled strands intersecting as a unitary non-woven body in a shape of the overall perimeter of the vehicle seat bottom cushion.

2. The method of claim 1 , further comprising cooling the plurality of strands as the unitary non-woven body.

3. The method of claim 1 , further comprising:

dispensing the molten thermoplastic resin from a plurality of nozzles, the plurality of nozzles, collectively, comprising an area greater than the area of the aperture; and

closing a subset of the plurality of nozzles outside the area of the aperture, wherein each of the plurality of nozzles is selectively actuated to either of open or closed position so as to dispense the plurality of strands in a pattern that matches the profile defined by the contour of the tooling plate and resist the flow of the plurality of strands within the contour of the tooling plate.

4. The method of claim 1 , wherein the plurality of cooling passages through the mold cools the unitary non-woven body.

5. The method of claim 4 , further comprising placing the mold in a cooling fluid, the cooling fluid cooling the unitary non-woven body.

6. The method of claim 1 , wherein the tooling plate comprises a one of fillet or chamfer at an input end of the tooling plate, and wherein the radius of the fillet is twelve millimeters, and at least one dimension of the chamfer is twelve millimeters.

7. The method of claim 1 , wherein the thickness of the tooling plate is one inch.

8. The method of claim 1 , wherein the tooling plate comprises a first wall, a second wall, a third wall and a fourth wall, and

wherein the first wall and the second wall correspond to a top surface and a bottom surface of the vehicle seat bottom cushion, and the third wall and the fourth wall correspond to side walls of the vehicle seat bottom cushion.

9. The method of claim 1 , wherein the plurality of cooling passages is formed on side walls of the tooling plate, the side walls extending from the aperture of the tooling plate towards a distal end of the tooling plate, and wherein the coolant is passed through the plurality of cooling passages on the side walls to facilitate cooling of the plurality of strands shaped within the contour of the aperture of the tooling plate.

Assignments (1)

Continuity (1)

References Cited (400)