| 摘要 |
A MATTRESS CORE UNIT (22), SUCH AS AN INNERSPRING, IS PLACED INSIDE (16, 18) A FOAM ENVELOPE, WHICH IN TURN IS COVED WITH FABRIC (30, 32, 33). THE SIDE (16, 18) AND END RAILS OF THE ENVELOPE OVERLAP THE BOTTOM PANEL (10), TO PROVIDE GOOD SUPPORT FOR ALL EDGES OF THE MATTRESS. THE TOP PANEL (28) OF THE ENVELOPE OVERLAPS THE SIDE (16, 18) AND THE END RAILS. TO MAKE A REVERSIBLE MATTRESS, AN OVERLAPPING BOTTOM FOAM PANEL IS USED. THE METHOD SIMPLIFIES MATTRESS CONSTRUCTION, REDUCES THE NUMBER OF REQUIRED STOCK KEEPING UNITS, AND PROVIDES A COMFORTABLE, YET FIRM, FEEL AT THE EDGES. |
