Patent ID: 11913282
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E  F | IPC E  F

Claim 0:
1. A roller blind assembly for covering an opening of a window wherein a top side of the window extends diagonally downward from a first side of the window to a second side of the window so that the top side of the window is non-perpendicular to the first side of the window and the second side of the window and is non-parallel to a bottom side of the window thereby forming a window having a modified rectangular shape, the roller blind assembly comprising:
a frame comprising a first side, a second side, and a bottom side, wherein:
the first side of the frame extends vertically between a first side bottom end and a first side top end;
the second side of the frame extends vertically between a second side bottom end and a second side top end;
the bottom side of the frame extends horizontally between and is connected respectively to the first side bottom end and the second side bottom end;
the first side of the frame is longer than the second side of the frame; and
the shape of the frame defined by the first side of the frame, the second side of the frame, and the bottom side of the frame corresponds to the modified rectangular shape of the window so that the frame can fully fit within or adjacent to the perimeter of the window by the first side of the frame extending parallel to the first side of the window, the second side of the frame extending parallel to the second side of the window, and the bottom side of the frame extending parallel to the bottom side of the window;

a roller tube assembly attached to the frame and comprising a cylindrical tube extending vertically adjacent to the first side of the frame and rotatably attached to the frame so that the tube is rotatable about a longitudinal center of the tube;
a roller blind sheet comprising a top edge, a bottom edge, a first side edge, and a second side edge that define a shape of the roller blind sheet that corresponds to the modified rectangular shape of the window so that the roller blind sheet covers the opening of the window, wherein:
the first side edge of the roller blind sheet is longer than the second side edge;
the first side edge of the roller blind sheet is attached to the tube of the roller tube assembly so that the roller blind sheet can be rolled up around the tube and can be unrolled and extended from the tube to respectively uncover and cover the opening of the window; and
the top edge of the roller blind sheet is configured to horizontally support the roller blind sheet when extended from the tube and to allow the roller blind sheet to roll up around the tube when retracted;

a chain assembly attached to the frame and comprising a chain extending in and moveable along a horizontal loop between the first side of the frame and the second side of the frame adjacent to the bottom side of the frame, wherein the chain comprises an engaging extension that comprises a rectangular shaped plate attached to and extending from the chain;
a track assembly attached to the frame and comprising an elongated track member extending between the first side and the second side of the frame;
an extension assembly comprising a rectangular prism shaped body having a plurality of pulleys attached thereto and a rod extending therefrom, wherein:
the extension assembly is moveably connected to the elongated track member by the pulleys of the extension assembly so that the extension assembly can move along the elongated track member between the first side of the frame and the second side of the frame;
the extension assembly is engageably coupleable to the chain by the body of the extension assembly so that a movement of the engaging extension toward the extension assembly by a movement of the chain causes the engaging extension to engage the body of the extension assembly and couple the chain to the extension assembly to move the extension assembly along the elongated track member; and
the extension assembly is connected to the roller blind sheet by the rod of the extension assembly adjacent to the second side edge of the roller blind sheet so that a movement of the extension assembly along the elongated track member by the chain causes an unrolling and extending of the roller blind sheet from the tube and horizontally across the frame;

an actuated clutch assembly, wherein:
the actuated clutch assembly is attached to the tube of the roller tube assembly; and
the actuated clutch assembly is engageably coupleable to the chain so that a movement of the chain causes a movement of the tube of the roller tube assembly so that the roller blind sheet retracts and rolls up around the tube as the tube is moved by the movement of the chain; and

a motor assembly attached to the frame and comprising a motor, wherein:
the motor is coupled to the chain so that the motor can cause the chain to move along the horizontal loop;
the motor is operable to move the chain in a first direction that moves the first engaging extension toward the extension assembly to engage the extension assembly and couple the chain to the extension assembly to move the extension assembly along the elongated track member; and
the motor is operable to move the chain in a second direction that moves the tube of the roller tube assembly when the actuated clutch assembly is engagedly coupled to the chain so that the roller blind sheet retracts and rolls up around the tube.