SEAT ASSEMBLY HAVING AN AIR PLENUM MEMBER
A seat assembly includes a seat cushion having a recess, and an air plenum member disposed in the recess for routing air through at least a portion of the seat cushion. The air plenum member has a first portion that comprises foam, and a second portion that is attached to the first portion and that comprises a polyolefin sheet. The seat assembly further includes a cover layer covering the air plenum member and the seat cushion.
1 . A seat assembly comprising:
a seat cushion having a recess;
an air plenum member disposed in the recess for routing air through at least a portion of the seat cushion, the air plenum member including a first portion that comprises foam, and a second portion that is attached to the first portion and that comprises a polyolefin sheet; and
a cover layer covering the air plenum member and the seat cushion.
2 . The seat assembly of claim 1 wherein the polyolefin sheet comprises polypropylene.
3 . The seat assembly of claim 1 wherein the polyolefin sheet comprises polypropylene fibers.
4 . The seat assembly of claim 1 wherein the polyolefin sheet comprises a polypropylene film.
5 . The seat assembly of claim 1 wherein the first portion is a bottom portion of the air plenum member, and the second portion is a top portion of the air plenum member.
6 . The seat assembly of claim 1 wherein the second portion is heat staked to the first portion such that a seal is formed along at least a portion of a junction of the first and second portions.
7 . The seat assembly of claim 1 wherein the second portion has multiple apertures for passing air through the second portion.
8 . The seat assembly of claim 1 wherein the foam of the first portion is air-impermeable.
9 . A seat assembly comprising:
a seat cushion having a recess;
an air plenum member disposed in the recess for routing air through at least a portion of the seat cushion, the air plenum member including a first portion that comprises foam, and a second portion that comprises a plastic sheet heat staked to the first portion such that the second portion is fused with the first portion, thereby forming a seal along at least a portion of a junction of the first and second portions; and
a cover layer covering the air plenum member and the seat cushion.
10 . The seat assembly of claim 9 wherein the second portion comprises polypropylene.
11 . The seat assembly of claim 9 wherein the second portion comprises polypropylene fibers.
12 . The seat assembly of claim 9 wherein the second portion comprises a polypropylene film.
13 . The seat assembly of claim 9 wherein the second portion comprises polyethylene.
14 . The seat assembly of claim 9 wherein the first portion is a bottom portion of the air plenum member, and the second portion is a top portion of the air plenum member.
15 . A method of making a seat assembly, the method comprising:
positioning together first and second portions of an air plenum member, the first portion comprising foam and the second portion comprising a plastic sheet;
heat bonding the second portion to the first portion such that a seal is formed along at least a portion of a junction of the first and second portions;
positioning the air plenum member in a recess of a seat cushion; and
positioning a cover layer over the air plenum member and the seat cushion;
wherein the air plenum member is configured to route air through at least a portion of the seat cushion.
16 . The method of claim 15 wherein the second portion comprises polypropylene.
17 . The method of claim 15 wherein the second portion comprises polypropylene fibers.
18 . The seat assembly of claim 15 wherein the second portion comprises a polypropylene film.
19 . The method of claim 15 wherein the second portion comprises polyethylene.
20 . The method of claim 15 wherein the first portion is a bottom portion of the air plenum member, and the second portion is a top portion of the air plenum member.