Chair and frame assembly thereof

A chair, comprising:

• a frame assembly, having a first side and a second side opposite each other, wherein the frame assembly comprises a first frame, a second frame, a sheet, and a covering member, wherein
• the first frame has a first opening facing the first side;
• the second frame is connected to the first frame, the second frame comprises a second opening located in the middle, and the second opening faces the second side and overlaps the first opening in position;
• the sheet is located between the first frame and the second frame, the sheet comprises two opposite first regions, two opposite second regions located between the first regions, and a third region located between the second regions, the second regions are bent under combined pressure of the first frame and the second frame, and the third region is located between the first opening and the second opening;
• and
• the covering member covers the first frame and the second frame.

A frame assembly suitable for a chair and having a first side and a second side opposite each other, wherein the frame assembly comprises:

• a first frame, having a first opening facing the first side;
• a second frame, connected to the first frame, wherein the second frame comprises two opposite fixing portions and a second opening located between the fixing portions, and the second opening faces the second side and overlaps the first opening in position;
• a sheet, located between the first frame and the second frame, wherein the sheet comprises two opposite first regions, two opposite second regions located between the first regions, and a third region located between the second regions, each of the first regions is fixed at one of the fixing portions, the second regions are bent under combined pressure of the first frame and the second frame, and the third region is located between the first opening and the second opening;
• and
• a covering member, covering the first frame and the second frame.