US 12,291,435 B2
Lifting device
Erik Häggström, Umeå (SE)
Appl. No. 16/956,598
Filed by Erik Häggström, Umeå (SE)
PCT Filed Dec. 6, 2018, PCT No. PCT/SE2018/000035
§ 371(c)(1), (2) Date Jun. 21, 2020,
PCT Pub. No. WO2019/125263, PCT Pub. Date Jun. 27, 2019.
Claims priority of application No. 1730350-4 (SE), filed on Dec. 21, 2017.
Prior Publication US 2022/0135380 A1, May 5, 2022
Int. Cl. B66C 23/44 (2006.01); B60P 1/48 (2006.01); B60P 1/54 (2006.01); B66C 23/14 (2006.01); B66C 23/62 (2006.01)
CPC B66C 23/44 (2013.01) [B60P 1/483 (2013.01); B60P 1/5428 (2013.01); B60P 1/549 (2013.01); B66C 23/14 (2013.01); B66C 23/62 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A lifting system for mounting on a loading surface of a vehicle, comprising at least one first lifting arm system on one side of the loading surface in the transverse direction of the vehicle and at least one second lifting arm system on the other side of the loading surface in the transverse direction of the vehicle, which lifting arm system each comprises at least one foundation, comprising at least one first foundation part and at least one second foundation part, with which each respective lifting arm system is connected to the vehicle and that the lifting arm systems each comprise at least one lifting arm and at least one operating mechanism which is operated with at least one actuator, wherein the lifting arm comprises at least one first arm part and at least one second arm part which are telescopically displaceable relative to each other, and wherein the lifting system comprises a safety device comprising at least one first locking member and at least one second locking member which prevents mutual operation between the lifting arm first arm portion and second arm portion and that the lifting system comprises at least one lifting boom which extends between the lifting arm in the first lifting arm system and the lifting arm in the second lifting arm system wherein the operating mechanism comprises of at least one first operating arm, which at one end, or close proximity, is pivotally connected one to the second foundation part and that the first operating arm at its other end, or the end of the end, is connected to the lifting arm via at least one arm link, or the like, and that the operating arm and the arm link are each pivotally connected to each other to the respective lifting arm, and that the operating mechanism further comprises at least one operating link which is pivotally connected at one end to the operating arm and that at its other end is connected via a shaft to at least one free end of the at least one actuator and that the movement of the shaft during operation of the at least one actuator is controlled by at least one guide device.