Hardware for mounting a sliding door panel
AssigneeStandard Keil Hardware Manufacturing Co.
InventorsSanford L. Cook, David Kirkup
Life of this patent
Estimating the term…
Abstract
Hardware for converting a door panel into a sliding door includes a pair of two-wheel trolley assemblies for supporting a door panel, a one piece track for attachment above a door opening, and a guide assembly for the bottom of the door panel for stabilizing the door when it is in the closed position. The track has running surfaces at 90.degree. to each other on which the wheels run. For use with doors for refrigerated rooms, one of the running surfaces has elevated portions for raising one wheel of each trolley. When on the elevated portions, the door panel is moved outwards from the door opening, thereby minimizing damage by the sliding panel to the door seals.
Claims22
Mounting hardware for supporting a door panel for sliding movement across a door opening in a structure, the mounting hardware comprising:
- an elongated track for attachment above a door opening in a structure, the track comprising first, out-ward-facing, and second running surfaces which are oriented at right angles one to the other, the running surfaces being at an angle of less than 90.degree. to the horizontal when the track is attached to the structure;
- at least two trolley assemblies each comprising a frame and a pair of trolley wheels, the frame supporting the trolley wheels for rotation about mutually perpendicular axes so that the rolling surface of each trolley wheel is in rolling contact with one of the running surfaces of the track, the trolley frame comprising an integral body having a substantially vertical, downwardly-extending dependent portion for supporting the door panel, an outward-extending portion on and extending upward from the dependent portion for supporting on its upward, inwardly-facing side, one of the trolley wheels in position to contact the first outward-facing running surface of the track, an intermediate portion fastened to the outward-extending portion and extending completely across the track, and a downward-extending portion on and extending inwardly from the intermediate portion which supports the other trolley wheel in position to contact the second running surface of the track.
Dependencies are inferred from the claim text.