US 11,744,761 B2
Exercise apparatus for lumbar stabilization
Jae Heung Park, Gyeonggi-do (KR); Won Je Choi, Gyeonggi-do (KR); Jong Seok Won, Gyeonggi-do (KR); and Hyun Bum Cho, Seoul (KR)
Assigned to SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul (KR)
Appl. No. 16/617,020
Filed by SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul (KR)
PCT Filed May 24, 2018, PCT No. PCT/KR2018/005889
§ 371(c)(1), (2) Date Nov. 26, 2019,
PCT Pub. No. WO2018/217028, PCT Pub. Date Nov. 29, 2018.
Claims priority of application No. 10-2017-0065485 (KR), filed on May 26, 2017.
Prior Publication US 2021/0137764 A1, May 13, 2021
Int. Cl. A61H 1/02 (2006.01); A61H 1/00 (2006.01)
CPC A61H 1/0229 (2013.01) [A61H 1/005 (2013.01); A61H 2201/1669 (2013.01); A61H 2201/1671 (2013.01); A61H 2201/5064 (2013.01); A61H 2203/0456 (2013.01); A61H 2203/0468 (2013.01); A61H 2203/0475 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An exercise apparatus for lumbar stabilization, comprising:
a first sub-antigravity module configured to apply a predetermined force to an upper body in a direction opposite to gravity;
a second sub-antigravity module configured to apply a predetermined force to a lower body in the direction opposite to gravity;
a base frame comprising a first rotating plate configured to support the first sub-antigravity module to be rotatable about a first vertical rotary shaft extending vertically and a second rotating plate configured to support the second sub-antigravity module to be rotatable about a second vertical rotary shaft extending vertically,
wherein each of the first and second sub-antigravity modules comprises:
a cushion configured to support the upper or lower body;
a support comprising a horizontal support rotatably installed on the first or second rotating plate, a vertical support configured to connect the first or second rotating plate and the cushion and linked to the cushion so that the cushion is rotatable about a horizontal rotary shaft extending horizontally, and a connecting support configured to connect the horizontal support and the vertical support; and
an elastic actuator configured to connect the first or second rotating plate and the cushion and to apply an antigravity force to the cushion.