Title:
畳用芯材
Document Type and Number:
Japanese Patent JP7220612
Kind Code:
B2
Abstract:
To provide a core material for a Tatami mat with excellent shock absorbing properties.SOLUTION: In a core material 1 for a Tatami mat, a surface material layer 2, a first hard foam layer 3, a soft foam layer 4 and a second hard foam layer 5 are laminated in this order from above. The first hard foam layer and the second hard foam layer each have a thickness of 10-20 mm, and each has a 10% deformation compressive stress greater than 100 kPa. The first hard foam layer has a flexural modulus of 10-100 MPa, and the soft foam layer has a thickness of 5-20 mm, and a 10% deformation compressive stress of 10-100 kPa.SELECTED DRAWING: Figure 1
Inventors:
Shimojo Yoshinori
Yujiro Sato
Yujiro Sato
Application Number:
JP2019064743A
Publication Date:
February 10, 2023
Filing Date:
March 28, 2019
Export Citation:
Assignee:
JSP Corporation
International Classes:
E04F15/02; B32B5/32
Domestic Patent References:
| JP2016199994A | ||||
| JP56155858U | ||||
| JP10311131A | ||||
| JP49004419U |
Attorney, Agent or Firm:
Masatoshi Iwane