Resumen
Taking any conventional mattress, with a central elastic core framed with two pads in turn lined with two outer layers of quilting or cushioning, the improvements lie in replacing at least one pad with a reticulated body (1) in which a number of transversely elongate pneumatic chambers (6) are established, each fitted with its own independent inflating means (10), and therefore the user may, depending on the air pressure supplied to each such transverse chamber (6), vary the degree of general firmness of the mattress at will, and also the degree of firmness along the same. In double beds, these transverse chambers (6) are split into two by means of a longitudinal midwall, to allow the firmness of the two sides of the bed to be independently adjusted, and inflating of said chambers will in any event take place with an appropriate compressing equipment and a set of electrovalves (10), one for each chamber (6), driven independently of the rest. <IMAGE>
Reivindicaciones
1. Improvements made in mattresses to adjust their firmness as the user sees fit, characterised by the inclusion within the mattress of a reticulated body (1) having a generally prismatic-rectangular configuration, structured based upon a laminar enveloping body (2-3-4) within which a number of transverse dividers (5) are established, determining sealed, transversely elongate pneumatic chambers (6) fitted with their own individual inflating means, and therefore according to the pressure supplied to such transverse chambers (6) throughout the bed, the latter shall offer different degrees of firmness. 2. Improvements made in mattresses to adjust their firmness as the user sees fit, as in claim 1, characterised in that the transverse chambers (6) can be split into two by means of a longitudinal divider (7) for instance to be used in double beds, and therefore the two parts into which it is divided can be independently adjusted insofar as the extent of inflation of its chambers is concerned. 3. Improvements made in mattresses to adjust their firmness as the user sees fit, as in claims 1 and 2, characterised in that a compressing equipment (8) works with it, assisted by a standby air tank (9) from which pressure is supplied to each and every transverse chamber (6) through respective electrovalves (10) which may be independently controlled one by one. 4. Improvements made in mattresses to adjust their firmness as the user sees fit, as in claims 1 to 3, characterised because the transverse chambers (6) are optionally framed laterally and longitudinally by two pneumatic cushions (11) provided with their own inflating means, which may optionally also extend to the other areas of the body (1) at the head and foot of the bed, these pneumatic cushions (11) being designed to receive a substantially higher air pressure than the pressure of the transverse cushions (6), in order to provide the edges of the mattresses with a greater firmness, and even with top linear protuberances as retaining railings. 5. Improvements made in mattresses to adjust their firmness as the user sees fit, as in claims 1 to 4, characterised because the reticulated body is included in the mattress as an intermediate element between the elastic core of the mattress and the outer quilting or cushioning. 6. Improvements made in mattresses to adjust their firmness as the user sees fit, as in claim 5, characterised because the central elastic core of the cushion is preferably chosen between an innerspring, polyurethane foam, latex or water core as a basis for water mattresses. 7. Improvements made in mattresses to adjust their firmness as the user sees fit, as in claims 1 to 4, characterised because this reticulated body is integrated with the central elastic core of the mattress forming a single unit which includes both their properties and qualities. 8. Improvements made in mattresses to adjust their firmness as the user sees fit, as in claims 1 to 4 and 7, characterised in that when the central elastic core is constituted by an innerspring, the pneumatic chambers constituting the reticulated body are included within the actual springs.
