A sliding panel structure, comprising:
- A) a plurality of sliding panels, each panel defining top edge and a bottom edge, and a first vertical edge and a second vertical edge on opposite sides of the panel, and each sliding panel adapted to slide horizontally leftward and rightward and pivot about a panel pivot axis located near the first vertical edge, with each of said plurality of sliding panels comprising a top cylindrical pivot space in the top edge near the first vertical edge and a bottom cylindrical pivot space in the bottom edge near the first vertical edge and aligned with the top cylindrical pivot space, said top and bottom cylindrical pivot spaces defining the panel pivot axis,
- B) an upper support track having an upside down U shaped cross section with two flanges at the bottom of the support track on each of two sides of the upper support track extending toward each other and defining an upper guide space between the two flanges,
- C) a plurality of upper support carts, each upper support cart defining an upper bogie, each of said upper bogies:
- 1) being adapted to move along said upper support track and provide upper guidance for a respective one of the panels,
- 2) having a support hinge element extending downward from the bogie through the upper guide space of the upper support track and into the upper pivot space of the respective one of the sliding panels to provide an upper hinge for the sliding panel, and
- 3) comprising a magnetic element adapted to cause a magnetic attraction between the upper bogie and a magnetic element of another upper bogie when the panel is to be pivoted to an open position and the two carts are close to each other,
- D) a lower guide rail, having an upright U shaped cross section with two flanges at or near the top of the lower rail guide extending toward each other to define a groove running down the middle of the lower guide rail,
- E) a plurality of lower support carts, each lower wheeled support carts defining a lower bogie, with each of the lower bogies:
- 1) being adapted to support a respective one of the sliding panels and roll along the lower guide rail and
- 2) having a support hinge element extending through the groove running down the middle of the lower guide rail and into a lower pivot space of the respective one of the sliding panels to provide a lower hinge for the sliding panel, said upper and lower hinges for each siding panel being adapted to permit the panels to be pivoted at least 90 degrees about the pivot axis,
- F) a plurality of panel roller elements each panel roller elements being
- 1) located near the bottom edge and the second vertical edge of a respective one of the plurality of sliding panels so as to roll on the two flanges of the lower rail guide to provide rolling support for the respective on of the plurality of sliding panels when it is being moved between an open position and a closed position, each of the panel roller elements having a maximum width wider than the groove running down the middle of the lower guide rail and
- 2) an extension element that is more narrow than the groove and adapted to extend through the groove when the panel is being supported by the roller element on the two flanges of the lower rail guard so as to permit the panel to be easily guided along the guide rail,
- wherein the upper support track and lower guide rail limit ranges of motion of the upper and lower bogies such that when each of the panels are in a process of being slid toward an opened direction, the range of the lower bogie is curtailed before the range of the upper bogie is curtailed so that when the lower range is curtailed the mutual attraction between the magnetic element of the upper bogie and the magnetic element of another upper bogie will apply a magnetic force sufficient to tilt the panel about a fulcrum position located at the bottom of the first vertical edge of the panel such that the extension element of the panel roller element will clear the groove running down the middle of the lower guide rail so as to permit the panel to be pivoted about the panel pivot axis to an open position.