Abstract: A quick disconnect mechanism for a detachable stair system for vehicles. The apparatus includes mounting brackets for installation at either side of a doorway in a recreational vehicle such as motorhome, camping trailer, or camper on a pickup truck. Fixed plates in the form of open jaw brackets are provided at each side of a sill cover plate, to enable operation of a pivotable detachable stair portion. The open jaw of the fixed plates are pivotable about pivot studs located in the mounting brackets. The fixed plates further include an arcuate channel defined radially outward from the pivots studs. The arcuate slot is sized and shaped for engagement with a pivot lock also located on the mounting brackets. The pivot locks extend inward for sliding operation with the arcuate slot, but not so far inward as to interfere with the pivoting motion of the sill cover plate.

Abstract: A quick disconnect mechanism for a detachable stair system for vehicles. The apparatus includes mounting brackets for installation at either side of a doorway in a recreational vehicle such as motorhome, camping trailer, or camper on a pickup truck. Fixed plates in the form of open jaw brackets are provided at each side of a sill cover plate, to enable operation of a pivotable detachable stair portion. The open jaw of the fixed plates are pivotable about pivot studs located in the mounting brackets. The fixed plates further include an arcuate channel defined radially outward from the pivots studs. The arcuate slot is sized and shaped for engagement with a pivot lock also located on the mounting brackets. The pivot locks extend inward for sliding operation with the arcuate slot, but not so far inward as to interfere with the pivoting motion of the sill cover plate.

Abstract: A retractable stair assembly for vehicles. In an embodiment, the retractable stair assembly may be detachable. Mounting brackets may be provided at opposing sides of a floor plate, and a one-piece mounting bracket assembly provided for installation at the threshold of a door in a recreational vehicle. Pivot plates are provided for pivotal movement of a retractable stair assembly about pivot studs provided on the mounting brackets. Pivot plates may be in the form of open jaw brackets provided at each side of a sill cover plate, to enable removal of the retractable stair assembly. A sill cover plate is provided that is shaped and sized to fit over the threshold and sill in a recreational vehicle doorway, yet allow closure of the door. In an embodiment a bottom stair is independently deployable, so the stair may be used, or not used, as may be appropriate at a given location.

Abstract: A quick disconnect mechanism for a detachable stair system for vehicles. The apparatus includes mounting brackets for installation at either side of a doorway in a recreational vehicle such as motorhome, camping trailer, or camper on a pickup truck. Fixed plates in the form of open jaw brackets are provided at each side of a sill cover plate, to enable operation of a pivotable detachable stair portion. The open jaw of the fixed plates are pivotable about pivot studs located in the mounting brackets. The fixed plates further include an arcuate channel defined radially outward from the pivots studs. The arcuate slot is sized and shaped for engagement with a pivot lock also located on the mounting brackets. The pivot locks extend inward for sliding operation with the arcuate slot, but not so far inward as to interfere with the pivoting motion of the sill cover plate.

Abstract: A retractable stair assembly for vehicles. In an embodiment, the retractable stair assembly may be detachable. Mounting brackets may be provided at opposing sides of a floor plate, and a one-piece mounting bracket assembly provided for installation at the threshold of a door in a recreational vehicle. Pivot plates are provided for pivotal movement of a retractable stair assembly about pivot studs provided on the mounting brackets. Pivot plates may be in the form of open jaw brackets provided at each side of a sill cover plate, to enable removal of the retractable stair assembly. A sill cover plate is provided that is shaped and sized to fit over the threshold and sill in a recreational vehicle doorway, yet allow closure of the door. In an embodiment a bottom stair is independently deployable, so the stair may be used, or not used, as may be appropriate at a given location.

Abstract: A quick disconnect mechanism for a detachable stair system for vehicles. The apparatus includes mounting brackets for installation at either side of a doorway in a recreational vehicle such as motorhome, camping trailer, or camper on a pickup truck. Fixed plates in the form of open jaw brackets are provided at each side of a sill cover plate, to enable operation of a pivotable detachable stair portion. The open jaw of the fixed plates are pivotable about pivot studs located in the mounting brackets. The fixed plates further include an arcuate channel defined radially outward from the pivots studs. The arcuate slot is sized and shaped for engagement with a pivot lock also located on the mounting brackets. The pivot locks extend inward for sliding operation with the arcuate slot, but not so far inward as to interfere with the pivoting motion of the sill cover plate.