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US 11,230,885 B2Granted
Geared window shade bracket with bead stop
AssigneeMechoshade Systems, LLC
InventorsJoel Berman, Stephen Hebeisen, Xi Ming Liarno, Eugene Miroshnichenko
Life of this patent
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AssigneeMechoshade Systems, LLC
InventorsJoel Berman, Stephen Hebeisen, Xi Ming Liarno, Eugene Miroshnichenko
Estimating the term…
The geared window shade bracket comprises a sprocket having a ring gear on an inside circumference of the sprocket; a chain configured to be engaged with the sprocket such that, in response to pulling on the chain, the sprocket rotates; a sun gear that is configured to be restricted from rotation; one or more planet gears configured to rotate around the sun gear, wherein the one or more planet gears interface with the ring gear; and a planetary carrier configured to mate with the one or more planet gears. In response to the chain being pulled, the sprocket rotates, causing the planet gears to rotate, causing the planetary carrier to rotate, causing the hub to rotate, and causing a shade tube to rotate.
A geared window shade bracket comprising:
A method comprising determining a maximum gear ratio based on a length of chain in a chain loop and a diameter of a shade tube, wherein, in response to pulling the chain, a sprocket rotates, causing rotation of a gearing system, and causing rotation of the shade tube, wherein the maximum gear ratio allows inclusion of a bead stop on the chain loop, wherein the maximum gear ratio includes less than 2 rotations of the sprocket resulting in 1 rotation of the shade tube, and wherein the length of chain with the bead stop allows for fully lowering from the shade tube and fully raising a window shade around the shade tube.
A method comprising pulling a chain having a bead stop causing less than 2 rotations of a sprocket and resulting in 1 rotation of a shade tube, wherein, in response to the pulling the chain, the sprocket rotates, causing rotation of a gearing system, and causing rotation of the shade tube.
Dependencies are inferred from the claim text.