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US 8,806,686 B2Granted
Breathable cushion and method of manufacturing the same
AssigneeToyota Boshoku Kabushiki Kaisha
InventorsHirotaka Kawasaki, Yukio Ishihara, Masao Tada, Ryoichi Wakayama
Life of this patent
Estimating the term…
Abstract
A seat cushion includes a cushion pad that is formed of breathable plastic foam, a breathable skin that is integrally layered on a front surface side of the cushion pad, and a non-breathable membrane-like film that is interleaved therebetween. The seat cushion includes a breathing hole formed in the film. The breathing hole extends from a back surface side of the cushion pad and passes through the cushion pad to penetrate the film. The breathing hole is formed while the cushion pad and the film are melted.
Claims2
A breathable cushion comprising:
- a pad layer that is formed of breathable plastic foam;
- a breathable skin layer that is integrally layered on a front surface side of the pad layer and is softer than the pad layer;
- a stretchable non-breathable film layer that adheres the pad layer to the breathable skin layer;
- and
- a breathing hole formed in the film layer, wherein the breathing hole extends from a back surface side of the breathable plastic foam and passes through the breathable plastic foam to penetrate the film layer, wherein
- the non-breathable film layer has a thickness of 30 μm.
3 more elements
Dependencies are inferred from the claim text.