Structure and method for manufacturing the same

A structure comprising:

• a first elastic member extending along a predetermined direction and having first end portions in the predetermined direction and a first intermediate portion located between the first end portions;
• and
• a second elastic member disposed on one surface side of the first elastic member, the second elastic member having second end portions in the predetermined direction, the second end portions being respectively connected to the first end portions, and a second intermediate portion located between the second end portions, with at least part of the second intermediate portion having a convex shape in a direction away from the first intermediate portion;
• and
• a third elastic member disposed on the other surface side of the first elastic member, the third elastic member having third end portions in the predetermined direction, the third end portions being respectively connected to the first end portions, and a third intermediate portion located between the third end portions, with at least part of the third intermediate portion having a convex shape in a direction away from the first intermediate portion,
• wherein, the structure is configured such that, when a pressing force is applied to the structure to bring the second and third intermediate portion closer to the first intermediate portion, the second and third elastic member undergoes bending deformation, thereby generating compressive stresses in the second and third elastic member and tensile stress in the first elastic member.

A method for manufacturing a structure comprising:

• a first elastic member extending along a predetermined direction and having first end portions in the predetermined direction and a first intermediate portion located between the first end portions;
• and
• a second elastic member disposed on one surface side of the first elastic member, the second elastic member having second end portions in the predetermined direction, the second end portions being respectively connected to the first end portions, and a second intermediate portion located between the second end portions, with at least part of the second intermediate portion having a convex shape in a direction away from the first intermediate portion;
• and
• a third elastic member disposed on the other surface side of the first elastic member, the third elastic member having third end portions in the predetermined direction, the third end portions being respectively connected to the first end portions, and a third intermediate portion located between the third end portions, with at least part of the third intermediate portion having a convex shape in a direction away from the first intermediate portion,
• wherein, the structure is configured such that, when a pressing force is applied to the structure to bring the second and third intermediate portion closer to the first intermediate portion, the second and third elastic member undergoes bending deformation, thereby generating compressive stress in the second and third elastic member and tensile stress in the first elastic member,
• the method comprising:
• (A) arranging the third, first and second elastic members in order;
• and
• (B) connecting the first end portions and second and third end portions while applying tensile force to the first elastic member in the predetermined direction.

A method for manufacturing a structure comprising:

• a first elastic member extending along a predetermined direction and having first end portions in the predetermined direction and a first intermediate portion located between the first end portions;
• and
• a second elastic member disposed on one surface side of the first elastic member, the second elastic member having second end portions in the predetermined direction, the second end portions being respectively connected to the first end portions, and a second intermediate portion located between the second end portions, with at least part of the second intermediate portion having a convex shape in a direction away from the first intermediate portion,
• a third elastic member disposed on the other surface side of the first elastic member, the third elastic member having third end portions in the predetermined direction, the third end portions being respectively connected to the first end portions, and a third intermediate portion located between the third end portions, with at least part of the third intermediate portion having a convex shape in a direction away from the first intermediate portion;
• and
• wherein, the structure is configured such that, when a pressing force is applied to the structure to bring the second and third intermediate portion closer to the first intermediate portion, the second and third elastic member undergoes bending deformation, thereby generating compressive stress in the second and third elastic member and tensile stress in the first elastic member,
• the method comprising:
• (A) arranging the third, first and second elastic members in order;
• and
• (B) connecting the first end portions and second and third end portions while compressing the second and third end portions toward each other along the predetermined direction.