Collapsible, compact mattress support

摘要

A collapsible mattress support for a box spring includes hinges on opposite sides of a middle cross bar. First and second side bars are pivotally attached to one hinge, and third and fourth side bars are pivotally attached to the other hinge. Each of the bars rotates about parallel axes that are orthogonal to the hinges. The four side bars each has a common width. A first distance between the axes about which the first and second bars rotate equals twice the common width of the bars plus a second distance between the axes about which the third and fourth bars rotate. In one embodiment, the cross bars are extendable. The components of the mattress support for Queen, California King and Eastern King sized mattresses fit in a packing box whose length is no greater than 45 inches and whose width and height are each no more than 7 inches.

主权项

1. A foldable mattress support comprising:
a cross bar with an upper surface; a first hinge that has a first plate and a second plate, wherein the first plate is perpendicular to the second plate, wherein the first plate has a top that is coplanar with the upper surface, and wherein the second plate is fixedly attached to the cross bar; a first bar pivotally attached to the first plate, wherein the first bar pivots about a first axis over the top of the first plate; a second bar pivotally attached to the first plate, wherein the second bar pivots about a second axis over the to of the first plate, wherein each of the first axis and the second axis is orthogonal to the first plate and passes through the first plate at a separate fixed location; and a clasp adapted to lock the first bar to the second bar such that the first bar is oriented parallel to the second bar and perpendicular to the cross bar.