JPS639947U - - Google Patents

Info

Publication number

JPS639947U

JPS639947U JP10190686U JP10190686U JPS639947U JP S639947 U JPS639947 U JP S639947U JP 10190686 U JP10190686 U JP 10190686U JP 10190686 U JP10190686 U JP 10190686U JP S639947 U JPS639947 U JP S639947U

Authority

JP

Japan

Prior art keywords

fabric

spring unit

pat

hard

tatami surface

Prior art date

1986-07-02

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.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 239000004744 fabric Substances 0.000 claims description 6
• 239000013013 elastic material Substances 0.000 claims description 2
• 239000000463 material Substances 0.000 claims description 2
• 230000001681 protective effect Effects 0.000 claims description 2
• 244000198134 Agave sisalana Species 0.000 claims 1
• 229920000742 Cotton Polymers 0.000 claims 1
• JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims 1
• 239000006260 foam Substances 0.000 claims 1
• 239000011120 plywood Substances 0.000 claims 1
• 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
• 235000011613 Pinus brutia Nutrition 0.000 description 1
• 241000018646 Pinus brutia Species 0.000 description 1
• 239000004745 nonwoven fabric Substances 0.000 description 1
• 238000009423 ventilation Methods 0.000 description 1