In order to manufacture an innerspring unit comprising pocketed springs and having an increased stability at its edge regions, in a first step, an innerspring main body comprising a plurality of first strings of pocketed springs is provided. In a subsequent second step, at least one second string of pocketed springs is attached to a lateral surface of the innerspring main body, so that the at least one second string of pocketed springs extends in a longitudinal direction of the innerspring main body. The springs of the at least one second string of pocketed springs have a spring characteristic or a spring geometry different from the springs of the plurality of first strings of the innerspring main body. The at least one second string of pocketed springs forms together with the innerspring main body the innerspring unit.

The present disclosure provides a mattress assembly. The mattress comprises a top foam layer, a convoluted foam layer and a plurality of foam pieces. The foam pieces are applied with adhesive bonding agent and secured the top foam layer and the convoluted foam layer together.

The present disclosure provides a mattress assembly. The mattress comprises a top foam layer, a convoluted foam layer and a plurality of foam pieces. The foam pieces are applied with adhesive bonding agent and secured the top foam layer and the convoluted foam layer together.

In order to manufacture an innerspring unit comprising pocketed springs and having an increased stability at its edge regions, in a first step, an innerspring main body comprising a plurality of first strings of pocketed springs is provided. In a subsequent second step, at least one second string of pocketed springs is attached to a lateral surface of the innerspring main body, so that the at least one second string of pocketed springs extends in a longitudinal direction of the innerspring main body. The springs of the at least one second string of pocketed springs have a spring characteristic or a spring geometry different from the springs of the plurality of first strings of the innerspring main body. The at least one second string of pocketed springs forms together with the innerspring main body the innerspring unit.

In order to manufacture an innerspring unit comprising pocketed springs and having an increased stability at its edge regions, in a first step, an innerspring main body comprising a plurality of first strings of pocketed springs is provided. In a subsequent second step, at least one second string of pocketed springs is attached to a lateral surface of the innerspring main body, so that the at least one second string of pocketed springs extends in a longitudinal direction of the innerspring main body. The springs of the at least one second string of pocketed springs have a spring characteristic or a spring geometry different from the springs of the plurality of first strings of the innerspring main body. The at least one second string of pocketed springs forms together with the innerspring main body the innerspring unit.

A method for manufacturing a backrest and/or having a textile covering or the same, and mounted on a chair tubular chassis or the same includes the following steps:

folding the lateral edges of the textile covering and seaming the edges to form lateral sheaths by lateral seam line,

affixing at least three visual markers, (notches), to at least one of the ends of each of the lateral sheaths, a first central notch at the lateral edge of each of sheaths and two peripheral notches on both sides of the respective central notch,

folding the free ends of the sheaths by fitting each central notch between the respective peripheral notches, such that the notches extend facing each other,

seaming the free ends of the sheaths at the folding area of the notches by a transverse seam line, and

turning over the textile covering by bringing out the corners.

A process is disclosed for making seats, for example bicycle seats, which include at least one shell, at least one covering sheet or covering, and at least one gel padding element, which adheres to at least one intermediate adhesion sheet made of a material having micro holes or holes or a woven fabric, which in turn adheres to a surface of the at least one covering. Equipment configured to implement such process is also disclosed.

A process is disclosed for making seats, for example bicycle seats, which include at least one shell, at least one covering sheet or covering, and at least one gel padding element, which adheres to at least one intermediate adhesion sheet made of a material having micro holes or holes or a woven fabric, which in turn adheres to a surface of the at least one covering. Equipment configured to implement such process is also disclosed.

Described is a roller for the automatic application of at least one adhesive on a sheet for mattresses, which makes it possible to optimise the time needed for processing and the precision of the distribution of adhesive on the sheet in relation to the desired pattern, eliminating the waste of adhesive.

A system may include an access engine and a foam part generation engine. The access engine may be configured to access a computer-aided design (CAD) seat surface that represents a seat surface of a seat design and access seat parameters for the seat design. The foam part generation engine may be configured to construct a CAD foam part for the seat design based on the CAD seat surface and the seat parameters.