US 12,312,217 B2
(Heave) balancing device, hoisting system, method for hoisting and kit of parts for spring balancing a hoisting system
Edouard Frans Alexander Schinkel, Utrecht (NL); Michaël Hubert Schinkel, Utrecht (NL); Bart Walgaard, The Hague (NL); Gjalt Lindeboom, Amsterdam (NL); and Eelke Gerrit De Vries, The Hague (NL)
Assigned to NHLO Holding B.V., Utrecht (NL)
Appl. No. 17/293,160
Filed by NHLO Holding B.V., Utrecht (NL); Edouard Frans Alexander Schinkel, Utrecht (NL); and Michaël Hubert Schinkel, Utrecht (NL)
PCT Filed Nov. 13, 2019, PCT No. PCT/EP2019/081243
§ 371(c)(1), (2) Date May 12, 2021,
PCT Pub. No. WO2020/099520, PCT Pub. Date May 22, 2020.
Claims priority of application No. 18206051 (EP), filed on Nov. 13, 2018.
Prior Publication US 2021/0403293 A1, Dec. 30, 2021
Int. Cl. B66C 13/06 (2006.01); B66C 1/10 (2006.01); B66C 13/12 (2006.01); B66C 23/52 (2006.01); F16F 9/512 (2006.01)
CPC B66C 13/06 (2013.01) [B66C 1/10 (2013.01); B66C 13/12 (2013.01); B66C 23/52 (2013.01); F16F 9/512 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A balancing device for balancing a load, comprising:
a first frame and a second frame;
a connection unit that can be supported;
a moveable carrying unit for carrying a load; and
a transmission that couples the connection unit and carrying unit, wherein said transmission is arranged to guide the connection unit and the carrying unit to move along a guideline with respect to each other, the transmission having a spring force balancing arrangement with one or more leverage units, and with at least one configurable gas- or hydr-pneumatic spring,
wherein the transmission further comprises an actuator, arranged to provide a compensating force to compensate for spring balance deviations as a result of non-perfect gas- or hydro-pneumatic spring behavior, and to drive the transmission and thereby adjust the distance between the connection unit and the carrying unit by over-balancing or under-balancing the spring force balancing arrangement, and
wherein the second frame connects the carrying unit to the transmission, and the transmission comprises at least two pivoting arms that have pivoting points.