US 12,435,563 B2
Lockable corner bracket
Mark Schmick, Rostrevor (AU); and Chris Doley, Rostrevor (AU)
Assigned to UBLOCKOUT TECHNOLOGIES PTY LTD, Adelaide (AU)
Filed by UBLOCKOUT TECHNOLOGIES PTY LTD, Adelaide (AU)
Filed on Oct. 10, 2024, as Appl. No. 18/911,641.
Application 18/911,641 is a continuation of application No. 18/683,866, granted, now 12,252,932, previously published as PCT/AU2022/051073, filed on Sep. 1, 2022.
Claims priority of application No. 2021902840 (AU), filed on Sep. 1, 2021.
Prior Publication US 2025/0034937 A1, Jan. 30, 2025
Int. Cl. E06B 9/50 (2006.01); E06B 9/44 (2006.01); E06B 9/60 (2006.01); E06B 9/72 (2006.01); E06B 9/78 (2006.01); E06B 9/42 (2006.01)
CPC E06B 9/44 (2013.01) [E06B 9/50 (2013.01); E06B 9/60 (2013.01); E06B 9/72 (2013.01); E06B 9/78 (2013.01); E06B 2009/425 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A screen system comprising a top frame member, a roller tube, a screen, and at least one corner bracket and frame member assembly comprising,
a corner bracket comprising:
an axle pulley comprising a roller tube support structure located on an external side of the axle pulley wherein the roller tube support structure defines a slot formed from a slot opening and at least one receiving cavity opposite the slot opening such that in use a roller tube is inserted into the slot and the at least one receiving cavity receives at least one locking projection located on an end surface of the roller tube;
a locking mechanism for locking the axle pulley;
a side frame member wherein the corner bracket is connected to or formed at a first end of the side frame member, the side frame member comprising:
a cord tensioning system housed in the side frame member and comprising a plurality of pulleys and a tension adjustment arrangement that defines a cord circuit wherein in use the tension adjustment arrangement adjusts the tension in the cord as a screen is wound and unwound from the roller tube and a cord, wherein a first end is attached around the axle pulley, and directed through the cord tensioning system, and the second end is fixed to the side frame member,
wherein the at least one receiving cavity comprises a pair of receiving cavities separated by a wedge, and the end surface of the roller tube comprises two pairs of locking projections, each pair located on opposite sides of the end surface such that the roller tube is inserted by sliding a pair of the locking projections into the slot through the slot opening until one pair of the locking projections are received in the pair of receiving cavities, and the other pair of locking projections are located in the slot opening to lock the roller tube with respect to the axle pulley.