Mattress spring unit - comprises continuous coil spring sheathed in sleeve and arranged in parallel

摘要

A spring unit for making spring interiors for articles of furniture comprises a continuous coil spring (1) sheathed in a sleeve or envelope (8) of strong yet flexible material. One or more spring units (15,19) may be used to make the spring interior. Each spring unit is arranged so that lengths of spring unit are disposed side by side with the longitudinal axes of the spring generally parallel with one another and with the upper and lower coils of the springs lying, respectively, in an upper and lower plane. (First major country equivalent to ES2010778).