System and method for hiding molding flash

Patent metadata

Field	Value
Publication number	US-11134792-B2
Application number	US-202016818513-A
Country	US
Kind code	B2
Filing date	Mar 13, 2020
Priority date	Apr 9, 2019
Publication date	Oct 5, 2021
Grant date	Oct 5, 2021

Abstract

A system for hiding flash in a suspension seat includes a frame having a channel having at least one wall, a fabric seat surface and a carrier over-molded onto the seat surface. The carrier has a wall and is over-molded onto the seat surface such that the seat surface extends from the wall. The carrier and a portion of the seat surface at a juncture of the carrier and the seat surface are positioned in the channel with the portion of the seat surface abutting the wall of the channel, such that flash formed at the juncture of the carrier and the seat surface is positioned against the wall of the channel. A seat formed thereby and a method for making the seat are disclosed.

First claim

The invention claimed is:

1. A system for hiding flash in a suspension seat, comprising:
a frame having a channel having at least one wall;
a fabric seat surface; and
a carrier over-molded onto the seat surface, the carrier having a wall, the carrier over-molded onto the seat surface such that the seat surface extends from the carrier wall,
wherein the carrier and a portion of the seat surface at a juncture of the carrier and the seat surface are positioned in the channel with the portion of the seat surface abutting the wall of the channel, such that flash formed at the juncture of the carrier and the seat surface is positioned against the wall of the channel, and
wherein the seat surface extends through the carrier at a generally downward angle with respect to the carrier wall.

2. The system of claim 1 , wherein the carrier has an upper wall and a lower wall, and wherein the wall from which the seat surface extends is a sidewall.

3. The system of claim 2 , wherein the channel wall is a sidewall.

4. The system of claim 1 , wherein the channel wall is a sidewall.

5. The system of claim 1 , wherein the fabric seat surface is a woven fabric material.

6. The system of claim 1 , wherein when the seat surface and carrier are positioned in the frame, a portion of the seat surface, adjacent the juncture of the carrier and the seat surface, extends along the carrier, between the carrier and the channel wall.

7. The system of claim 6 , wherein the flash is unexposed at the carrier upper wall.

8. The system of claim 1 , wherein the seat surface extends from the carrier at a parting line in the carrier and wherein the parting line faces the channel wall.

9. A seat suspension, comprising:
a seat surface;
a carrier over-molded onto the seat surface, the carrier having a wall, the carrier over-molded onto the seat surface such that the seat surface extends from the carrier wall,
a frame having a wall,
wherein the carrier and a portion of the seat surface at a juncture of the carrier and the seat surface are positioned in the frame with the portion of the seat surface abutting the frame wall, such that flash formed at the juncture of the carrier and the seat surface is isolated between the carrier wall and the frame wall, and
wherein the carrier wall is an inner wall and the seat surface extends from the carrier at a parting line, the parting line extending from above a midpoint on the inner wall of the carrier to below a midpoint on an outer wall of the carrier.

10. The seat of claim 9 , wherein the inner carrier wall is a sidewall and wherein the frame wall is a sidewall.

11. The seat of claim 9 , wherein the carrier further includes upper and lower walls,
wherein the frame includes a channel formed therein, the frame wall forming an inner wall of the channel, the frame further including an outer wall and a lower wall, and
wherein the portion of the seat surface is captured between the carrier inner wall and the inner wall of the channel.

12. The seat of claim 9 , wherein the flash is unexposed beyond the carrier inner wall and the frame wall.

13. The seat of claim 9 , wherein the parting line faces the channel wall.

14. A method for hiding flash in a suspension seat, comprising:
over-molding a carrier onto a fabric seat surface, the carrier having a wall, the carrier over-molded onto the seat surface such that the seat surface extends through the carrier and exits the carrier from the carrier wall; and
positioning the over-molded carrier and the seat surface in a seat frame, the seat frame having a wall,
wherein the carrier and a portion of the seat surface at a juncture of the carrier and the seat surface are positioned in the seat frame with the portion of the seat surface abutting the seat frame wall, such that any flash formed at the juncture of the carrier and the seat surface is positioned against the seat frame wall, unexposed to an occupant of the seat.

15. The method of claim 14 wherein the carrier wall from which the seat surface extends is a sidewall.

16. The method of claim 15 wherein the seat frame has a channel, the seat frame wall forming a portion of the channel.

17. The method of claim 16 wherein when the seat surface and carrier are positioned in the channel, a portion of the seat surface, adjacent the juncture of the carrier
and the seat surface, extends along the carrier, between the carrier wall and the channel to capture flash between the carrier wall and the frame wall.

18. The method of claim 14 , further including securing the carrier in the frame.

19. The method of claim 18 , wherein the carrier is secured in the frame by fasteners.

20. The method of claim 14 , wherein the carrier is molded having a parting line, and wherein the seat surface extends from the parting line.

Assignees

• Illinois Tool Works

Inventors

• Case Michael
• Sayers Randy James
• Nordquist David B
• Washburn Kelly

Classifications

• A47C31/02 Primary

  Upholstery attaching means · CPC title

• A47C7/282 Primary

  with mesh-like supports, e.g. elastomeric membranes · CPC title

• B29C45/14786

  Fibrous material or fibre containing material, e.g. fibre mats or fibre reinforced material · CPC title

• B29C2045/0034

  Mould parting lines · CPC title

• B29C45/14065

  Positioning or centering articles in the mould · CPC title