Seat assembly, cushion, and tool and method of forming

Patent metadata

Field	Value
Publication number	US-12325624-B2
Application number	US-202318178818-A
Country	US
Kind code	B2
Filing date	Mar 6, 2023
Priority date	Mar 6, 2023
Publication date	Jun 10, 2025
Grant date	Jun 10, 2025

Abstract

A method is provided with a stranded mesh material blank inserted into a cavity of a tool assembly shaped to form a cushion member. Fluid is circulated above a first temperature threshold through a series of apertures defined in a forming surface of the tool assembly and into the cavity thereby softening the blank and conforming a shape of the blank to the forming surface. Fluid is circulated below a second temperature threshold through the series of apertures in the forming surface and into the cavity thereby setting the shape of the blank to the forming surface and forming a cushion member. A cushion for a seat assembly is provided by a stranded mesh material member. A system is provided with a first tool, a second tool, and one or more inlet manifolds.

First claim

What is claimed is:

1. A system, comprising:
a first tool comprising a first forming surface defining a series of first apertures therethrough;
a second tool comprising a second forming surface defining a series of second apertures therethrough, the first forming surface and the second forming surface cooperating to define a cavity and shaped to form a cushion member; and
an inlet manifold fluidly connected to the cavity via at least one of the series of first apertures or the series of second apertures, wherein the inlet manifold extends along an outer perimeter wall of a chamber comprising the first tool and the second tool, and wherein the chamber comprises at least one inlet in a fluid communication with the inlet manifold, and wherein the at least one inlet comprises a deflector that is positioned to extend into the inlet manifold at a fixed angle relative to the inlet, such that the deflector is adapted to direct fluid into the chamber.

2. The system of claim 1 , wherein the first tool defines one or more first chambers in fluid communication with the inlet manifold, the one or more first chambers in fluid communication with the cavity via the series of first apertures in the first forming surface.

3. The system of claim 1 , wherein the inlet manifold is a first inlet manifold supported by the first tool and fluidly connected to the cavity via the series of first apertures, and
wherein the system further comprises a second inlet manifold supported by the second tool and fluidly connected to the cavity via the second series of apertures.

4. The system of claim 1 , further comprising an outlet fluidly coupled to the inlet manifold via the series of first apertures and the cavity.

5. The system of claim 4 , wherein the outlet is at least partially defined by one or more outlet ports in at least one of the first tool or the second tool, and wherein each of the one or more outlet ports comprise one of a baffle, a plate or a valve that is movable between an open position and a closed position.

6. The system of claim 4 , wherein the first tool and the second tool are positioned within a central region of a chamber and the chamber defining the outlet.

7. The system of claim 6 , wherein, the at least one inlet is positioned along the outer perimeter wall of the chamber, and wherein the outlet is positioned to fluidly connect the central region of the chamber to atmosphere such that fluid circulates radially inward within the chamber from the at least one inlet to the outlet.

8. The system of claim 1 , further comprising one or more members extending outwardly from the first forming surface and/or the second forming surface.

9. The system of claim 1 , further comprising a fluid transfer device, a heater, a valve in fluid communication with the inlet manifold, and a controller configured to control the valve to selectively fluidly couple the heater to the inlet manifold to provide fluid to the cavity at a first temperature, and selectively fluidly decouple the inlet manifold from the heater to provide fluid to the cavity at a second temperature less than the first temperature.

10. A system, comprising:
a first tool comprising a first forming surface defining a series of first apertures therethrough;
a second tool comprising a second forming surface defining a series of second apertures therethrough, the first forming surface and the second forming surface cooperating to define a cavity and shaped to form a cushion member;
one or more inlet manifolds;
a fluid system comprising a fluid transfer device, a valve, and a heater in fluid communication with the one or more inlet manifolds; and
a controller configured to control the valve to selectively fluidly couple the heater to the one or more inlet manifolds to provide fluid to the cavity at a first temperature, and selectively fluidly decouple the one or more inlet manifolds from the heater to provide fluid to the cavity at a second temperature less than the first temperature, wherein the one or more inlet manifolds extends along an outer perimeter wall of a chamber comprising the first tool and the second tool, and wherein the chamber comprises at least one inlet in a fluid communication with the inlet manifold, and wherein the at least one inlet comprises a deflector that is positioned to extend into the inlet manifold at a fixed angle relative to the inlet, such that the deflector is adapted to direct fluid into the chamber.

11. The system of claim 1 , wherein at least a portion of the cushion member is formed of a non-foam component.

12. The system of claim 10 , wherein the first tool defines one or more first chambers in fluid communication with the one or more inlet manifolds, the one or more first chambers in fluid communication with the cavity via the series of first apertures in the first forming surface.

13. The system of claim 10 , wherein one of the one or more inlet manifolds is a first inlet manifold supported by the first tool and fluidly connected to the cavity via the series of first apertures, and
wherein the system further comprises a second inlet manifold of the one or more inlet manifolds supported by the second tool and fluidly connected to the cavity via the second series of apertures.

14. The system of claim 1 , further comprising an outlet fluidly coupled to the one or more inlet manifolds via the series of first apertures and the cavity.

15. The system of claim 14 , wherein the outlet is at least partially defined by one or more outlet ports in at least one of the first tool or the second tool, and wherein each of the one or more outlet ports comprise one of a baffle, a plate or a valve that is movable between an open position and a closed position.

16. The system of claim 14 , wherein the first tool and the second tool are positioned within a central region of a chamber and the chamber defining the outlet.

17. The system of claim 16 , wherein the at least one inlet is positioned along the outer perimeter wall of the chamber, and wherein the outlet is positioned to fluidly connect the central region of the chamber to atmosphere such that fluid circulates radially inward within the chamber from the at least one inlet to the outlet.

18. The system of claim 10 , further comprising one or more members extending outwardly from the first forming surface and/or the second forming surface.

19. The system of claim 10 , wherein the series of first apertures are equally spaced from one another on the first forming surface and the series of second apertures are equally spaced from one another on the second forming surface.

20. The system of claim 1 , wherein the deflector extends into the inlet manifold at an angle relative to the inlet manifold.

21. The system of claim 1 , wherein the at least one inlet comprises walls which are angled relative to the inlet manifold.

Assignees

• Lear Corp

Inventors

• Hudson Curtis
• Repke Eric
• Swikoski Lisa

Classifications

• B29C33/046

  using gas · CPC title

• B29C33/048

  using steam · CPC title

• B29C33/04

  using liquids, gas or steam {(tyre moulds with incorporated heating or cooling means using liquids, gas or steam B29D30/0601)} · CPC title

• B68G7/02

  Making upholstery from waddings, fleeces, mats, or the like (filling methods B68G7/06) · CPC title

• B29L2031/58

  Upholstery or cushions, e.g. vehicle upholstery or interior padding {(mattresses, cushions B29L2031/751)} · CPC title