Roll-up door system

A roll-up door system for mounting across a door opening, comprising:

• a pair of guide tracks for vertical installation as door guide members on both sides of the door opening;
• a hexagonal tube member, said hexagonal tube member being hollow;
• a plurality of drums mounted on said hexagonal tube member, one of said drums being mounted at each end of said hexagonal tube member, each of said drums having means defining a generally hexagonal central opening for receiving the hexagonal tube member therein;
• an axle extending through the interior of said hexagonal tube member;
• at least one torsion spring mounted about said axle within said hexagonal tube member and secured at one end thereof to said axle;
• torque means coupled between said torsion spring and said tube member, said torque means being slidable longitudinally of said axle and said tube member to accommodate changes in dimension of said torsion spring during rotation of the tube member;
• bearing means for mounting said hexagonal tube member for rotational movement on said axle;
• means for supporting said axle in a horizontal position adjacent the upper edge of the door opening;
• and
• a roll-up door mounted at the top thereof to and supported by said plurality of drums, said roll-up door being positionable to cover the door opening with the side edges of said roll-up door being retained by said guide tracks, said roll-up door being rolled about said plurality of drums as said roll-up door is raised;
• wherein said hexagonal tube member comprises:
• (a) a first tube half having three long, rectangular surfaces, with the longer sides of said three surfaces of said first tube half being connected together at the edges, the angles between adjacent sides of said first tube half being 120 degrees;
• and
• (b) a second tube half having three long, rectangular surfaces, with the longer sides of said three surfaces of said second tube half being connected together at the edges, the angles between adjacent sides of said second tube half being 120 degrees, said first and second tube halves being secured together to form said hexagonal tube member;
• wherein one long free edge of each of said first and second tube halves has a flange extending therefrom, and the other long free edge of each of said first and second tube halves has a U-shaped segment extending therefrom, each U-shaped segment having a shorter free leg and a longer leg attached to said long free edge of one of said first and second tube halves, said flange being oriented directly away from said U-shaped segment, and the interior of said U-shaped segment being oriented toward said flange, said flange of said first tube half being disposed in said U-shaped segment of the second tube half, and said flange of said second tube half disposed in said U-shaped segment of said first drum half.

A roll-up door system for mounting across a door opening, comprising:

• a pair of guide tracks for vertical installation as door guide members on both sides of the door opening;
• a hexagonal tube member, said hexagonal tube member being hollow;
• a plurality of drums mounted on said hexagonal tube member, one of said drums being mounted at each end of said hexagonal tube member, each of said drums having means defining a generally hexagonal central opening for receiving the hexagonal tube member therein;
• an axle extending through the interior of said hexagonal tube member;
• at least one torsion spring mounted about said axle within said hexagonal tube member and secured at one end thereof to said axle;
• torque means coupled between said torsion spring and said tube member, said torque means being slidable longitudinally of said axle and said tube member to accommodate changes in dimension of said torsion spring during rotation of the tube member;
• bearing means for mounting said hexagonal tube member for rotational movement on said axle;
• means for supporting said axle in a horizontal position adjacent the upper edge of the door opening;
• and
• a roll-up door mounted at the top thereof to and supported by said plurality of drums, said roll-up door being positionable to cover the door opening with the side edges of said roll-up door being retained by said guide tracks, said roll-up door being rolled about said plurality of drums as said roll-up door is raised;
• wherein said supporting means is pivotable to vary the distance of the axle from the door opening in accordance with the extent to which the door is rolled about said drums;
• wherein said supporting means comprises a pair of door support brackets for installation adjacent the top of said guide tracks, each of said door support brackets supporting a pivot arm extending upwardly, each said pivot arm being rotatably moveable with respect to the door support bracket supporting it toward and away from said the plane of the door opening, said axle being supported at the ends thereof by said pivot arms;
• and additionally comprising means for limiting the movement of said pivot arms toward and away from the plane of the door opening, including a first restraining stud mounted on each of said door support brackets for limiting the movement of said pivot arms mounted on said support brackets in a direction toward the plane of the door opening, and a second restraining stud mounted on each of said door support brackets for limiting the movement of said pivot arms mounted on said support brackets in a direction away from the plane of the door opening;
• wherein said first and second restraining studs are mounted in slots to allow for adjustment in the degree of movement said restraining studs allow said pivot arms to have.

A roll-up door system for mounting across a door opening, comprising:

• a pair of guide tracks for vertical installation as door guide members on both sides of the door opening;
• a hexagonal tube member, said hexagonal tube member being hollow;
• a plurality of drums mounted on said hexagonal tube member, one of said drums being mounted at each end of said hexagonal tube member, each of said drums having means defining a generally hexagonal central opening for receiving the hexagonal tube member therein;
• an axle extending through the interior of said hexagonal tube member;
• bearing means for mounting said hexagonal tube member for rotational movement on said axle;
• means for supporting said axle in a horizontal position adjacent the upper edge of the door opening;
• and
• a roll-up door mounted at the top thereof to and supported by said plurality of drums, said roll-sup door being positionable to cover the door opening with the side edges of said roll-up door being retained by said guide tracks, said roll-up door being rolled about said plurality of drums as said roll-up door is raised;
• wherein said roll-up door is of corrugated construction having peaks and valleys facing outwardly, said roll-up door having a plurality of apertures therein, which apertures are located in said peaks adjacent each side edge of said roll-up door, said door system additionally comprising:
• a plurality of bearing blocks, each bearing block having a rectangular configuration fitting over one of said peaks and into half of each adjacent valley, one end of said bearing block having a centrally located tongue extending therefrom, the other end of said bearing block having a centrally located notch therein, said tongue from said bearing block fitting into the notch on the next adjacent bearing block.

A roll-up door for use in a roll-up door system for mounting across a door opening, which system comprises:

• a pair of guide tracks for vertical installation as door guide members on both sides of the door opening;
• a hexagonal tube member, said hexagonal tube member being hollow;
• a plurality of drums mounted on said hexagonal tube member, one of said drums being mounted at each end of said hexagonal tube member, each of said drums having means defining a generally hexagonal central opening for receiving the hexagonal tube member therein;
• an axle extending through the interior of said hexagonal tube member;
• bearing means for mounting said hexagonal tube member for rotational movement on said axle;
• means for supporting said axle in a horizontal position adjacent the upper edge of the door opening;
• and
• a roll-up door mounted at the top thereof to and supported by said plurality of drums, said roll-up door being positionable to cover the door opening with the side edges of said roll-up door being retained by said guide tracks, said roll-up door being rolled about said plurality of drums as said roll-up door is raised;
• said roll-up door comprising:
• a plurality of panels joined edge to edge to form the roll-up door, each panel having particularly-shaped edge configurations such that the mating edges of a pair of adjacent panels join together in a releasable seam combination, one of said edges being releasably retained within the other of said edges in a joint which permits flexing in one direction but prevents flexing in the opposite direction;
• wherein a first edge of a panel has a terminal configuration comprising a first generally U-shaped portion continuing in succession to a first corner, a first straight segment, a second corner, a second straight segment and a second generally U-shaped portion with a terminal lip, the second generally U-shaped portion and the terminal lip forming a pocket.

A roll-up door system for mounting across a door opening, comprising:

• a pair of guide tracks for vertical installation as door guide members on both sides of the door opening;
• a first tube half having three long, rectangular surfaces, with the longer sides of said three surfaces of said first tube half being connected together at the edges, the angles between adjacent sides of said first tube half being 120 degrees;
• and
• a second tube half having three long, rectangular surfaces, with the longer sides of said three surfaces of said second tube half being connected together at the edges, the angles between adjacent sides of said second tube half being 120 degrees, wherein one long free edge of each of said first and second tube halves has a flange extending therefrom, and the other long free edge of each of said first and second tube halves has a U-shaped segment extending therefrom, each U-shaped segment having a shorter free leg and a longer leg attached to said long free edge of one of said first and second tube halves, said flange being oriented directly away from said U-shaped segment, and the interior of said U-shaped segment being oriented toward said flange, said first and second tube halves being brought together to form a hexagonal tube member, said flange of said first tube half being disposed in said U-shaped segment of the second tube half, and said flange of said second tube half disposed in said U-shaped segment of said first tube half;
• a plurality of drums mounted on said hexagonal tube member, each drum comprising a cylindrical segment larger in diameter than said hexagonal tube member and a disk of the same diameter as said cylindrical segment, said disk being attached to said cylindrical segment at one end of said cylindrical segment, said disk having a central hexagonal aperture therein to admit said hexagonal tube member, one of said drums being mounted at each end of said hexagonal tube member;
• an axle extending through the interior of said hexagonal tube member;
• a bearing plate mounted at each end of said hexagonal tube member to the ones of said drums mounted at the ends of said hexagonal tube member, said bearing plate having a bearing member therein for supporting said axle for rotation;
• means for supporting said axle in a horizontal position adjacent the upper edge of the door opening;
• and a roll-up door mounted at the top thereof to, and supported by, said plurality of drums, said roll-up door being positionable to cover the door opening with the side edges of said roll-up door being retained by said guide tracks, said roll-up door being rolled about said plurality of drums as said roll-up door is raised.