Patent ID: 11938854
Assignee: ARCHEM INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A resin foamed body made of flexible resin,
wherein the resin foamed body entirely includes a skeleton part,
the skeleton part includes
a plurality of bone parts, and
a plurality of connection parts connecting end parts of the plurality of bone parts,

the plurality of bone parts each include
a bone constant part extending while keeping cross-sectional area substantially constant, and
a bone change part extending from the bone constant part to the corresponding connection part while gradually increasing cross-sectional area, and

as for the plurality of bone parts, in each of the plurality of bone parts, an average value AV(A0/A1) of a ratio A0/A1 of cross-sectional area A0 of the bone change part of each bone part at an edge on the bone constant part side relative to cross-sectional area A1 of the bone change part at an edge on the connection part side satisfies

0.15≤AV(A0/A1)<0.5.