| 摘要 |
Spring unit, consisting of a system of two-cone springs, according to the invention, characterised in that every two-cone spring (1) of this system, in a form of two truncated cones connected at the base, whereby the truncated top part is facing outside, is placed in a closed barrel-shaped sleeve (2) and adjacent sleeves are glued at a contact point (b), and this system is covered from the top and the bottom with a piece of fabric (4), whereby the sleeve (2) of each spring (1) is glued also to the top and the bottom fabric at the contact point (c), whereby the sleeves (2) of springs at the ends (1) of the system are glued to the side walls of the casing (4) at the contact points. |
