US 11,728,081 B2
Planar pop-up actuator device with embedded electro-magnetic actuation
Marco Salerno, Lausanne (CH); Amir Firouzeh, Crissier (CH); Jamie Paik, Lausanne (CH); and Stefano Mintchev, Lausanne (CH)
Assigned to ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL), Lausanne (CH)
Appl. No. 16/323,087
Filed by ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL), Lausanne (CH)
PCT Filed Aug. 4, 2017, PCT No. PCT/IB2017/054799
§ 371(c)(1), (2) Date Feb. 4, 2019,
PCT Pub. No. WO2018/025241, PCT Pub. Date Feb. 8, 2018.
Application 16/323,087 is a continuation of application No. 15/229,157, filed on Aug. 5, 2016, abandoned.
Claims priority of provisional application 62/512,108, filed on May 29, 2017.
Prior Publication US 2021/0287836 A1, Sep. 16, 2021
Int. Cl. B25J 9/00 (2006.01); H01F 7/16 (2006.01); B25J 9/12 (2006.01); H01F 7/06 (2006.01)
CPC H01F 7/1646 (2013.01) [B25J 9/0051 (2013.01); B25J 9/12 (2013.01); H01F 2007/068 (2013.01); H01F 2007/1692 (2013.01); Y10S 901/02 (2013.01); Y10S 901/19 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A parallel platform system, comprising:
a planar base having an opening structure with a center opening and three openings arranged in a star configuration around the center opening;
an actuation structure including three movable legs and a movable platform, the movable platform rotatably attached to each one of the three movable legs; and
three mechanical transmission mechanisms to individually actuate a corresponding one the three movable legs,
wherein each movable leg includes an upper leg pivotably attached to the movable platform, a lower leg operatively attached to a respective one of the mechanical transmission mechanism for departing a rotation to the lower leg relative to the planar base, and pivotably attached to the planar base,
wherein in a folded state, the movable legs of the actuation structure and the movable platform are arranged in the opening structure,
wherein in an expanded state, the three movable legs protrude out of the opening structure to move the movable platform with one translational degree of freedom and two rotational degrees of freedom by the three mechanical transmission mechanisms, and
wherein each movable leg includes a foldable middle section pivotably connected to a respective one of the upper legs and the lower legs.