| 摘要 |
Adjustable rear leveling systems for refrigerators and other appliances are described. In one embodiment, the leveling system includes a rear rail having notch embossed pads. Rail leveling units are mounted to the rear rail at the pads. Each rail leveling unit, in the one embodiment, includes a rail bracket which mounts to the rear rail. Each leveling unit also includes a leveling link and a link arm. The leveling link is rotatably secured to the rail bracket by a first pin, and a leveling roller is engaged to the leveling link by a second pin. A first end of the link arm extends through a keyed opening in the leveling link and a second end of the link arm has a threaded opening extending therethrough. An adjusting screw extends through an opening in a front rail of the appliance, and a threaded portion of the adjusting screw extends through, and into threaded engagement with, the threaded opening in the second end of the link arm. By rotating the adjustment screw clockwise or counterclockwise, the adjusting screw moves the link arm toward or away from the rear rail. Such movement of the link arm causes the leveling link to rotate about the first pin, and such rotation causes the leveling roller to move toward or away from the rear rail. As the leveling roller moves toward the rear rail, the rear rail is adjusted upward. As the leveling roller moves away from the rear rail, the rear rail is adjusted downward.
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