US 12,320,192 B2
Torsion spring adjuster
Raffaele Barioli, Lake Worth, FL (US); Bill Feeley, Lake Worth, FL (US); Chris Miller, Lake Worth, FL (US); and Brian Peterson, Lake Worth, FL (US)
Assigned to EASTERN METAL SUPPLY, INC., Lake Worth, FL (US)
Filed by EASTERN METAL SUPPLY INC., Lake Worth, FL (US)
Filed on Jul. 27, 2020, as Appl. No. 16/939,285.
Prior Publication US 2022/0025699 A1, Jan. 27, 2022
Int. Cl. E06B 9/17 (2006.01); E06B 9/15 (2006.01); F16F 1/16 (2006.01); E06B 9/60 (2006.01)
CPC E06B 9/17 (2013.01) [E06B 9/15 (2013.01); F16F 1/16 (2013.01); E06B 9/60 (2013.01); F16F 2228/08 (2013.01); F16F 2230/0005 (2013.01); F16F 2236/085 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A rolling shutter system, comprising:
a torsion spring assembly;
a support plate having a first flange with a hole, the support plate having a first central axis and the first flange being substantially parallel with said first central axis, a central axis of the hole being perpendicular to the central axis of the flange, and a cylindrical axle coaxial with the central axis of the support plate and projecting from the support plate;
a wheel rotatably mounted on the support plate, the wheel being unattached to the torsion spring assembly, the wheel having:
a first end with a cylindrical recess for receiving the cylindrical axle for some but not all of the depth of the wheel;
a second end with a drive recess coaxial with the cylindrical recess, the drive recess having a non-circular shape configured to mate with a non-circular end of the torsion spring assembly, such that rotation of the wheel causes the drive recess to directly apply pressure to the non-circular end of the torsion spring assembly to rotate the torsion spring assembly;
a first set of recesses having openings disposed around a circumference of the wheel, the first set of recesses being a first lateral distance from the first end of the wheel, each of the first set of recesses having a central axis that is parallel with a radial axis of the wheel;
a second set of recesses having openings disposed around the circumference of the wheel, the second set of recesses being a second lateral distance from the first end of the wheel and located between the first set of recesses and the second end of the wheel;
a reel tube with a hollow interior;
a plurality of interconnected slats collectively forming a curtain with one end coupled to the reel tube;
the torsion spring assembly at least partially inserted into the hollow interior of the reel tube, and having a first end mounted in the drive recess of the wheel;
wherein the first lateral distance aligns the first set of recesses with the hole of the support plate; and
wherein the second lateral distance aligns the second set of recesses past the support plate.