Patent ID: 8567476
Filing Date: 2013-10-29
Classification: B60J,B60R,E06B

Abstract:
1. A device for creating an angular biasing force for a roller tube of a shade, said roller tube designed to be connected to the shade, said device comprising a plurality of force units positioned inside of a cavity of said roller tube, each of said force units including a housing and a torsion spring, said housing of a plurality of said force units at least partially encircling said torsion spring, at least one of said force units secured to a fixed structure of a vehicle such that at least a portion of said force unit does not rotate relative to said fixed structure, said torsion spring in each of said force units designed to exert a biasing force between said fixed structure and said roller tube, each of said torsion springs having a first inner end and a second outer end, said second outer end connected to said housing of said force unit, said housing of at least one of said force units connected or interconnected to said roller tube so that the torsion biasing force of at least one of said torsion springs is in a direction from said fix structure to said roller tube, said cavity of said roller tube including an inner surface designed to engage an outer surface of said housing of at least one of said force units, at least one of said force units in said roller tube not connected to said roller tube so that said force unit can independently rotate relative to said roller tube, said roller tube including a fastener designed to facilitate in securing said roller tube to said housing of at least one of said force units, said housing of a plurality of adjacently positioned force units are connected together, said housing of at least one of said force units includes a housing slot, said second end of at least one of said torsion springs in postionable in said housing slot to enable said torsion spring to be connected to said housing, at least one of said force units include a nose, said nose connected to said first inner end of said torsion spring of an adjacently positioned force unit so as to interconnect to at least one of said torsion springs of said force unit to said torsion springs of said adjacently positioned force unit.