Rack shelving unit
First Claim
Patent Images
1. A rack shelving unit comprising:
- a front beam;
a rear beam spaced rearward of the front beam;
a tie bar extending between the front and rear beams to form a shelf frame with the front and rear beams, wherein the tie bar has an inverted U-shaped body comprising a first sidewall, a second sidewall, and a bight connecting the first and second sidewalls,wherein the first sidewall and second sidewall are flexible;
compression retainers coupling the tie bar to the front and rear beams with a compressive force, the compression retainers having a protruding element provided on each of the first and second sidewalls and keyhole slots provided on each of the front and rear beams; and
a shelf resting upon the front beam and the rear beam;
wherein the tie bar has an unassembled state and an assembled state;
wherein the tie bar is prevented from being fastened to the front and rear beams in the unassembled state and is configured to be coupled to the front and rear beams when the first and second sidewalls are compressed by enabling the protruding elements to be inserted within the respective keyhole slots;
wherein the tie bar is prevented from being removed from the front and rear beams in the assembled state wherein the protruding elements can not be removed from the respective keyhole slots; and
the tie bar is configured to be removed from the front and rear beams when the first and second sidewalls are compressed by enabling the protruding elements to be removed from the respective keyhole slots; and
wherein in the assembled state, the first and second sidewall are configured to flex laterally away from each other as the shelf is loaded to increase the compression of the protruding elements and respective keyhole slots into each other and increase the compressive force of the compression retainers.
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Accused Products
Abstract
A rack shelving unit includes front and rear beams, and one or more tie bars extending between the front and rear beams to form a shelf frame with the front and rear beams which can support a shelf. The tie bar can include flexible sidewalls that can flex laterally away from each other as the shelf is loaded to increase the compressive force of a compression retainer coupling the tie bar to the front and rear beams.
117 Citations
19 Claims
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1. A rack shelving unit comprising:
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a front beam; a rear beam spaced rearward of the front beam; a tie bar extending between the front and rear beams to form a shelf frame with the front and rear beams, wherein the tie bar has an inverted U-shaped body comprising a first sidewall, a second sidewall, and a bight connecting the first and second sidewalls, wherein the first sidewall and second sidewall are flexible;
compression retainers coupling the tie bar to the front and rear beams with a compressive force, the compression retainers having a protruding element provided on each of the first and second sidewalls and keyhole slots provided on each of the front and rear beams; and
a shelf resting upon the front beam and the rear beam;wherein the tie bar has an unassembled state and an assembled state; wherein the tie bar is prevented from being fastened to the front and rear beams in the unassembled state and is configured to be coupled to the front and rear beams when the first and second sidewalls are compressed by enabling the protruding elements to be inserted within the respective keyhole slots; wherein the tie bar is prevented from being removed from the front and rear beams in the assembled state wherein the protruding elements can not be removed from the respective keyhole slots; and
the tie bar is configured to be removed from the front and rear beams when the first and second sidewalls are compressed by enabling the protruding elements to be removed from the respective keyhole slots; andwherein in the assembled state, the first and second sidewall are configured to flex laterally away from each other as the shelf is loaded to increase the compression of the protruding elements and respective keyhole slots into each other and increase the compressive force of the compression retainers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 17, 18)
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13. A rack shelving unit comprising:
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a front beam; a rear beam spaced rearward of the front beam; a tie bar, the tie bar having an inverted U-shaped body comprising a bight and a pair of flexible sidewalls extending from the bight, and configurable between an unassembled state, a compressed state wherein the sidewalls are compressed toward each other, an assembled state, and a loaded state wherein the flexible sidewalls are flexed away from each other, and wherein the tie bar is coupled with and extends between the front and rear beams to form a shelf frame with the front and rear beams; compression retainers coupling the tie bar to the front and rear beams with a compressive force, the compression retainers each having a protruding element provided on each of the first and second sidewalls and keyhole slots provided on each of the front and rear beams; wherein the tie bar is prevented from being fastened to the front and rear beams in the unassembled state, and prevented from being removed from the front and rear beams in the assembled state wherein the protruding elements can not be removed from the respective keyhole slots; wherein the tie bar is coupled to the front and rear beams when in the compressed state by enabling the protruding elements to be inserted within the respective keyhole slots, and is removed from the front and rear beams when in the compressed state by enabling the protruding elements to be removed from the respective keyhole slots; wherein the flexible sidewalls are flexed away from each other when a load is applied to the bight. - View Dependent Claims (14, 15, 16, 19)
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Specification