JPH0515258Y2 - - Google Patents

Info

Publication number

JPH0515258Y2

JPH0515258Y2 JP4438890U JP4438890U JPH0515258Y2 JP H0515258 Y2 JPH0515258 Y2 JP H0515258Y2 JP 4438890 U JP4438890 U JP 4438890U JP 4438890 U JP4438890 U JP 4438890U JP H0515258 Y2 JPH0515258 Y2 JP H0515258Y2

Authority

JP

Japan

Prior art keywords

cushion material

core body

cover

folded

peripheral surface

Prior art date

1990-04-25

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired - Lifetime

Links

• Espacenet
• Global Dossier
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• 239000000463 material Substances 0.000 claims description 37
• 238000003780 insertion Methods 0.000 claims description 15
• 230000037431 insertion Effects 0.000 claims description 15
• 230000002093 peripheral effect Effects 0.000 claims description 8
• 239000004744 fabric Substances 0.000 description 4
• 238000004519 manufacturing process Methods 0.000 description 4
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
• 230000000694 effects Effects 0.000 description 2
• 239000007787 solid Substances 0.000 description 2
• 229920003002 synthetic resin Polymers 0.000 description 2
• 239000000057 synthetic resin Substances 0.000 description 2
• 239000004793 Polystyrene Substances 0.000 description 1
• 238000005520 cutting process Methods 0.000 description 1
• 229910052742 iron Inorganic materials 0.000 description 1
• 238000000034 method Methods 0.000 description 1
• 229920002223 polystyrene Polymers 0.000 description 1
• 229920002635 polyurethane Polymers 0.000 description 1
• 239000004814 polyurethane Substances 0.000 description 1
• 238000005096 rolling process Methods 0.000 description 1
• 238000009958 sewing Methods 0.000 description 1