Sliding door assembly
OwnerStanley Rokickiinventor
Life of this patent
Estimating the term…
Abstract
A sliding patio door assembly is disclosed of the kind in which the door, when it is being closed, moves bodily laterally with respect to the slide track; i.e., forwardly with respect to the closing door panel. When fully closed, the door is entered into a recess, and a weather seal is compressed between the door and a lip surrounding the recess. The door is controlled, as to its lateral movement relative to the slide track, upon crank arms, and it is a feature of the disclosure that the crank arms are constrained to pivot in unison but in opposite senses of rotation. Another feature is that the crank arms lie at 90 degrees to the line of the slide track when the door is fully closed.
Claims10
Sliding door arrangement, comprising a door, a door receiving recess, a fixed slide track, a pair of trolleys, a pair of crank arms, and an elastomeric seal;
- said door having a door frame, and a rotatable door handle mounted to one side of the door frame substantially mid way of the height thereof;
- said elastomeric seal being interposed between a portion of said door receiving recess and said door frame in compressed sealing relation therebetween when said door is fully entered into said recess;
- each crank arm of said pair of crank arms being mounted for pivoting about a respective vertical pivot axis;
- each said vertical pivot axis being located within the frame of the door;
- wherein each crank arm is mounted for pivoting with respect to a respective trolley;
- said trolleys being arranged for displacement along the slide track;
- said door being arranged to move horizontally at right angles to the direction of said slide track, when entering or leaving said door receiving recess;
- said two crank arms being in operative engagement with said door handle, and being arranged to pivot in response to a turning action of the door handle;
- the action of pivoting the crank arms being such as to bodily displace said door at right angles to the slide track, so as to move the door into and out of said recess;
- said elastomeric seal sealingly engaging the periphery of the door when the door is fully entered into said door receiving recess;
- wherein the mechanical advantage provided by the crank arms when displacing the door inwardly into the recess, being at right angles to said slide track, achieves a maximum value in compressing the elastomeric seal, in the fully closed position;
- and wherein said two crank arms are arranged to rotate in opposite senses, one clockwise and one counter clockwise, when said door handle turns.
Dependencies are inferred from the claim text.