| 摘要 |
PROBLEM TO BE SOLVED: To provide an adhesive member having relatively strong direction dependency of adhesive force.SOLUTION: An adhesive member has a projection part projecting from a surface of a member and by force between surfaces of an end surface of the projection part and an adherend, the end surface adheres to the adherend. When a strain energy release ratio on a first peeling portion of the projection part when force is applied to a first direction parallel to the surface is G1, adhesive energy on the first peeling portion is &Dgr;γ1, a strain energy release ratio on a second peeling portion of the projection part when force equal to the force applied to the first direction is applied to the second direction opposite to the first direction is G2, and adhesive energy on the second peeling portion is &Dgr;γ2, G1/&Dgr;γ1≠G2/&Dgr;γ2is satisfied because there is difference between &Dgr;γ1and &Dgr;γ2. |
