US 11,919,740 B2
Reel based closure system
Randon George Kruse, Denver, CO (US); Josef Duller, Denver, CO (US); Charles Clay Corbett, Denver, CO (US); and Ryan Vogt, Denver, CO (US)
Assigned to BOA Technology, Inc., Denver, CO (US)
Filed by Boa Technology Inc., Denver, CO (US)
Filed on Oct. 13, 2022, as Appl. No. 17/965,564.
Application 17/965,564 is a continuation of application No. 16/864,849, filed on May 1, 2020, granted, now 11,492,228.
Claims priority of provisional application 62/841,535, filed on May 1, 2019.
Prior Publication US 2023/0031091 A1, Feb. 2, 2023
Int. Cl. A43C 11/16 (2006.01); B65H 75/30 (2006.01); F16G 11/12 (2006.01)
CPC B65H 75/30 (2013.01) [A43C 11/165 (2013.01); F16G 11/12 (2013.01)] 22 Claims
OG exemplary drawing
 
18. A reel based closure device for tightening an article comprising:
a housing;
a spool that is rotatable to wind a tension member about the spool, the spool including axially oriented teeth;
a knob core that includes axially oriented teeth that operably couple with the axially oriented teeth of the spool, the knob core being rotatable in a tightening direction to cause the spool to rotate in the tightening direction and thereby wind the tension member about the spool; and
a biasing component that is operably engaged with the spool to bias the spool axially into operable engagement with the knob core;
wherein the plurality of axially oriented teeth of the spool and the axially oriented teeth of the knob core are tapered or sloped so that the spool is pulled axially into increased engagement with the knob core as the knob core is rotated in the tightening direction.