Patent ID: 7096533

Claim:
A locking roller assembly for an article of furniture, comprising: a housing defining an interior; a wheel located in the interior of the housing, wherein the wheel is rotatably mounted to an axle that extends along a longitudinal axis; an axle guide arrangement associated with the housing for guiding vertical movement of the housing relative to the axle between a lowered position and a raised position; a biasing arrangement interconnected with the axle for biasing the housing toward the raised position; a wheel engagement area within the housing interior; and a wheel engagement surface movable with the housing, wherein the wheel engagement surface is configured to engage the wheel when the housing is moved to the lowered position, and wherein the wheel engagement surface is further configured to move the wheel laterally along the longitudinal axis of the axle into engagement with the wheel engagement area when the wheel engagement surface engages the wheel to inhibit rotation of the wheel.