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US 6,986,405 B2Granted
Ladder with leg brace
AssigneeCosco Management, Inc.
InventorPaul K. Meeker
Life of this patent
Estimating the term…
Abstract
A ladder comprises a foldable frame, a leg spreader, and a leg brace. The leg brace biases leg units of the frame toward one another to stiffen the frame in response to spreading of the leg units away from one another to an unfolded position by the leg spreader.
Claims9
A ladder comprising
- a foldable frame including a first leg unit and a second leg unit, the first and second leg units being arranged to move relative to one another between folded and unfolded positions,
- a leg spreader coupled to the leg units and arranged to spread the leg units away from one another to the unfolded position, and
- a leg brace comprising a first cable having each of its ends coupled to a different one of the legs of the first leg unit and a second cable having each of its ends coupled to one of the legs of the second leg unit with an apex of each cable coupled to one another by a cable connector so that they become taut and bias the leg units toward one another to stiffen the frame in response to spreading of the leg units away from one another to the unfolded position by the leg spreader wherein the cable connector comprises a sleeve and both apexes of the cables extend through the sleeve and are fixed therein.
A ladder comprising
- a foldable frame including a first leg unit and a second leg unit, the first and second leg units being arranged to move relative to one another between folded and unfolded positions,
- a leg spreader coupled to the leg units and arranged to spread the leg units away from one another to the unfolded position, and
- a leg brace coupled to the leg units and arranged to bias the leg units toward one another to stiffen the frame in response to spreading of the leg units away from one another to the unfolded position by the leg spreader, wherein each leg unit includes a pair of legs, the leg brace includes a first cable including an end portion coupled to each leg of the first leg unit, a second cable including an end portion coupled to each leg of the second leg unit, and a cable connector coupled to a middle portion of each cable, wherein the cable connector includes a sleeve, the middle portion of each cable extends through the sleeve, and the sleeve is deformed to grip the middle portion of each cable.
A ladder comprising
- a foldable frame including a first leg unit and a second leg unit, the first and second leg units being arranged for pivotable movement relative to one another between folded and unfolded positions, each leg unit including a pair of legs,
- a leg spreader coupled to the leg units and arranged to pivot the leg units away from one another to the unfolded position, and
- an X-shaped leg brace including a cable coupled to each leg of the leg units and arranged to be tensioned to bias each leg toward a central portion of the leg brace to stiffen the frame in response to pivotable movement of the leg units away from one another to the unfolded position by the leg spreader, wherein the leg brace includes a first cable coupled to the legs of the first leg unit, a second cable coupled to the legs of the second leg unit, and a sleeve that surrounds and is crimped to a middle portion of each cable.
A ladder comprising
- a frame including a first leg unit and a second leg unit, each leg unit including a pair of legs, and
- an X-shaped leg brace including a cable coupled to each leg of the leg units, wherein the leg brace includes a first cable including an end portion coupled to each leg of the first leg unit, a second cable including an end portion coupled to each leg of the second leg unit, and a cable connector coupled to a middle portion of each of the first and second cables, wherein the cable connector includes a sleeve, the middle portion of each of the first and second cables extends through the sleeve, and the sleeve is deformed to grip the middle portion of each of the first and second cables.
Dependencies are inferred from the claim text.