US 12,186,616 B2
Physical training apparatus
Gerrit Jan Stegeman, Laren (NL)
Assigned to Kynett Holding B.V., Lochem (NL)
Filed by Kynett Holding B.V., Lochem (NL)
Filed on Nov. 15, 2023, as Appl. No. 18/509,443.
Application 18/509,443 is a continuation of application No. 17/293,512, granted, now 11,857,830, previously published as PCT/NL2019/050735, filed on Nov. 11, 2019.
Claims priority of application No. 2022002 (NL), filed on Nov. 15, 2018.
Prior Publication US 2024/0082623 A1, Mar. 14, 2024
Int. Cl. A63B 21/22 (2006.01); A63B 21/00 (2006.01); A63B 21/16 (2006.01)
CPC A63B 21/227 (2013.01) [A63B 21/00061 (2013.01); A63B 21/153 (2013.01); A63B 21/16 (2013.01); A63B 21/4035 (2015.10)] 23 Claims
OG exemplary drawing
 
1. A physical training apparatus comprising:
a housing;
a flywheel mechanism accommodated in the housing, said flywheel mechanism including a spindle having a first spindle end portion, at least one flywheel mountable on the spindle, and bearings to support the spindle in the housing;
a windable pull element which is arranged to be wound up the spindle and unwound from the spindle;
wherein the flywheel is exchangeably mounted on the first spindle end portion against a stop located on the spindle, and wherein a fastening knob is releasably coupled to the first spindle end portion and adapted to engage the flywheel and force the flywheel against the stop located on the spindle,
wherein the housing comprises at least on one lateral side a covering lid, said covering lid having a central opening which makes the fastening knob accessible in a closed state of the covering lid, allowing a user to turn the spindle to wind the pull element on the spindle.