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US 11,655,659 B2Granted
Quick release door roller assembly
AssigneeDaniel Deutsch
InventorDaniel A. Deutsch
Life of this patent
Estimating the term…
Abstract
An improved vertical lift door roller assembly has a wheel pivotally mounted to a shaft. The shaft is placed within a spring loaded locking cylinder. The locking cylinder is movable between a first position where it restricts pivoting of the wheel and a second position where the wheel is able to pivot. When the door roller assembly is used on a vertical lift door, the wheel can be pivoted to decouple the roller from a vertical lift door J channel wheel track.
Claims22
A vertical lift door roller assembly comprising:
- a support configured to be mounted to a vertical lift door;
- a wheel;
- a first shaft extending from the wheel along a central axis, the first shaft coupled to the wheel at an inner end and having an outer end;
- a second shaft with inner and outer ends, the inner end of the second shaft connected to the outer end of the first shaft with a pivot joint, the second shaft positionable along the central axis;
- a locking cylinder surrounding at least a portion of the second shaft and movable between (i) a first position in which the locking cylinder surrounds at least a portion of the first shaft and the portion of the second shaft and (ii) a second position in which at least a portion of the pivot joint is outside of the locking cylinder;
- wherein the locking cylinder is mounted within the support;
- wherein when the locking cylinder is in the first position the first and second shafts are retained in a substantially coaxial position and when the locking cylinder is in the second position the first shaft can pivot relative to the second shaft.
4 more elements
A vertical lift door assembly comprising:
- a door having a front, a back, first and second edges, a top, and a bottom, the door comprising a plurality of rectangular panels, adjacent panels of the plurality of panels being connected with a plurality of hinges;
- a roller comprising a wheel and a stem coupled to a central axis of the roller;
- a support attached to a front of a respective panel of the plurality of panels, the support adjacent to a first edge of the respective panel;
- the stem of the roller comprising:
- a first shaft having a central axis extending from the wheel along the central axis of the first shaft, the first shaft coupled to the wheel of the roller at an inner end and having an outer end;
- a second shaft with an inner end and an outer end, the inner end of the second shaft connected to the outer end of the first shaft with a pivot joint, the second shaft positionable to align with the central axis of the first shaft;
- a locking cylinder surrounding at least a portion of the second shaft and movable between (i) a first position in which the locking cylinder surrounds at least a portion of the first shaft and the portion of the second shaft and (ii) a second position in which at least a portion of the pivot joint is outside of the locking cylinder;
- the locking cylinder of the stem being mounted within the support;
- wherein when the locking cylinder of the stem is in the first position the first and second shafts of the stem are retained in a substantially coaxial position and when the locking cylinder is in the second position the first shaft can pivot relative to the second shaft of the stem to permit the wheel of the roller, when mounted in a door lift track, to be removed from the door lift track.
6 more elements
Dependencies are inferred from the claim text.