Spring module formed by connecting spring units and elastic pad

Abstract

In a spring module formed by connecting spring units, the spring units are formed by preloading and wrapping at least one spring or a set of springs in flexible sleeves, and connection portions are disposed on side edges of the flexible sleeves. A plurality of or sets of the spring units are connected via the connection portions and configured to form the spring module, and the connection portions are a portion of the spring units other than force-bearing ends of the spring units. The portion of the spring units is spaced apart from the force-bearing ends of the spring units by at least ¼ of a length of the springs, and the connection portions are a part of the flexible sleeves or connectors assembled on peripheral sides of the flexible sleeves. At least one layer of the connection portions is disposed in a height direction of the spring unit.

Dependencies are inferred from the claim text.