Support system for a sectional door

A door system for a door opening defined by a pair of vertically oriented jambs, a header positioned near the vertical extremity of the jambs, and a floor supporting the jambs, the door system comprising:

• a door;
• a plurality of track sections, said door being moveable on said track sections;
• a support system coupled to said door, wherein engagement of said support system when the door is in a closed position enables transfer of forces applied to said door to at least one of the header on the floor;
• a pivotable operator motor assembly coupled to said door to move said door between open and closed positions, wherein at least a portion of said pivotable operator motor assembly pivots to a blocking position when said door is in said closed position;
• a header attachment assembly coupled to a portion of said door and adapted to be coupled to the header, said support system engaged when said portion of said pivotable operator assembly pivots to the blocking position and engages said header attachment assembly;
• a floor attachment assembly coupled to a portion of said door and adapted to be coupled to the floor;
• a support member connected between said heater attachment assembly and said floor attachment assembly, wherein engagement of said header attachment assembly moves said support member and actuates said floor attachment assembly;
• a header attachment member slidably retained by the door, said header attachment member having one end coupled to said support member;
• a latch cam coupled to said header attachment member, wherein said portion of said motor assembly pivots and engages said latch cam when moved to the blocking position;
• and
• a cam spring biasing said latch cam with respect to the door with a cam biasing force, wherein said portion of said motor assembly pivots and engages said latch cam when moved to the blocking position and overcomes said cam biasing force.