US 11,858,793 B2
Thrust lifting device
Ivan Seigneur, Dieppe (FR)
Assigned to SERAPID- FRANCE, Rouxmesnil-Bouteilles (FR)
Appl. No. 16/756,568
Filed by SERAPID—FRANCE, Rouxmesnil-Bouteilles (FR)
PCT Filed Oct. 16, 2018, PCT No. PCT/FR2018/052562
§ 371(c)(1), (2) Date Apr. 16, 2020,
PCT Pub. No. WO2019/077254, PCT Pub. Date Apr. 25, 2019.
Claims priority of application No. 1759740 (FR), filed on Oct. 17, 2017.
Prior Publication US 2020/0239289 A1, Jul. 30, 2020
Int. Cl. B66F 7/06 (2006.01); B66F 3/06 (2006.01); F16G 13/20 (2006.01)
CPC B66F 7/0666 (2013.01) [B66F 3/06 (2013.01); F16G 13/20 (2013.01); B66F 2700/03 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A thrust lifting device, adapted to transmit a thrust force allowing for lifting of loads, comprising:
at least one articulated lift column provided with at least one meshing part, and with at least one arm directed upward from the at least one meshing part, the at least one lift column being made up of links with a link of rank 1 at the upper end of the upwardly directed arm and running links of rank n, with n comprised between 2 and N, wherein N is the number of links of the at least one lift column,
at least one rotary pinion driving the at least one lift column by said at least one meshing part meshing with the at least one pinion,
at least one second arm orthogonal to the at least one upwardly directed arm and formed by resting links, said resting links being able to pass to the at least one meshing part and to the at least one upwardly directed arm by rotation of the at least one pinion, and
at least one movable stabilizer that is movable along the at least one upwardly directed arm, wherein each lift column comprises at least one tappet per each movable stabilizer of the at least one movable stabilizer, the tappet configured to support said movable stabilizer by bearing on a stabilizer finger, the tappet being supported by at least two link axes when the tappet encounters the stabilizer finger by an upper surface thereof, the stabilizer finger displaceable with respect to the stabilizer, with dampening of said displacement by a damper.