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US 7,007,815 B2Granted
Pallet rack with camber beams
AssigneeSteel King Industries, Inc.
InventorsJayce S. Anderson, Gary J. Rosenberg, Steven E. Krueger, William R. Sniff
Life of this patent
Estimating the term…
Abstract
A storage rack has upright columns supporting vertically cambered beams having step box or channel shapes accommodating a generally horizontal deck for carrying pallets and product loads. The beams have upward cambers or convex curvatures that increase the load carrying capacity of the rack.
Claims16
A storage rack comprising:
- a first upright frame having a first pair of upright columns,
- a second upright frame having a second pair of upright columns laterally spaced from the first pair of upright columns,
- at least one pair of beams for supporting a load extended horizontally between said first and second pairs of upright columns, each of said beams is a one-piece tubular box beam having generally horizontal step portion having opposite ends, said box beam is a linear straight one-piece tubular box beam cold pressed deformed into a beam having an upward convex curvature along the length thereof, a deck extended between and supported on the step portion of each beam for accommodating a load whereby a portion of the weight of the load on the deck is taken up by the amount of weight required to bend the convex curved beam downward toward a generally linear horizontal configuration, and
- connectors attaching the ends of the beams to the first and second columns.
1 more element
A storage rack comprising:
- a first upright frame having a first pair of upright columns, a second upright frame having a second pair of upright columns laterally spaced from the first pair of upright columns, at least one pair of beams for supporting a load extended horizontally between said first and second pairs of upright columns, each of said beams is a channel member having opposite ends, said channel member being cold pressed to deform a linear straight channel member into a beam having an upward convex curvature along the length thereof, a deck extended between and supported on the channel member for accommodating a load whereby a portion of the weight of the load on the deck is taken up by the amount of weight required to bend the convex curved beam downward toward a generally linear horizontal configuration, connectors releasably attaching the ends of the channel members to the first and second columns, and releasable latches to prevent inadvertent release of the connectors from the colums.
A storage rack comprising:
- first and second upright columns laterally spaced from each other,
- beam means for supporting a load extended between said first and second columns, said beam means having elongated beams with upward convex curvatures along the lengths thereof, each of said beams is a linear straight beam cold pressed deformed into a beam having said upward convex curvature along the length of the beam whereby a portion of the weight of the load on the beams is taken up by the amount of weight required to overcome the convex curvatures of the beams, and connector means for mounting the beam means on the first and second columns.
A storage rack comprising:
- first and second generally upright columns laterally spaced from each other,
- a plurality of generally horizontal one-piece step box beams for supporting loads extended between said first and second columns, each of the step box beams having upward convex curvatures of about 1/32 inch for each foot of beam length along the length thereof, each of said beams is a linear straight beam cold pressed deformed into a beam having said upward convex curvature along the length of the beam whereby a portion of the weight of the load on the step box beams is taken up by the amount of weight required to overcome the convex curvatures of the step box beams, and
- connectors on the step box beams operable to attach the step box beams to the upright first and second columns.
Dependencies are inferred from the claim text.