| 主权项 |
1. A magnetic hanging device for use in combination with a magnetically attractive surface, the device comprising:
a magnetic hanger comprising a magnetic sheet and a magnetic-sheet reinforcement suspending layer having a rear side to which the magnetic sheet is fixed and a front side having a hanging member attached thereto; and a plurality of substantially rigid spaced apart ribs disposed on said front side of the hanger, at least one of the ribs being a single-piece non-segmented rib,wherein the magnetic-sheet reinforcement suspending layer is configured in accordance with the following equation:E·L·t3D2wherein E is Young's modulus of elasticity, in giga Pascals; L=the length of the ribs in centimeters; t=the thickness of the reinforcement suspending layer that is the portion between the ribs, in tenths of millimeters; and D=the average distance between the ribs, in centimeters; and, with the resulting numerical value of the equation is in the range of 1,800 to 60,000. |
