US 12,234,136 B2
Device for stabilizing telescopic scissors with a plurality of traction parts
Andreas Schwank, Kelsterbach (DE); and Peter Janssen, Dieburg (DE)
Assigned to Siemens Aktiengesellschaft, Munich (DE)
Filed by Siemens Aktiengesellschaft, Munich (DE)
Filed on May 19, 2022, as Appl. No. 17/748,124.
Claims priority of application No. 21175288 (EP), filed on May 21, 2021.
Prior Publication US 2022/0411232 A1, Dec. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B66F 7/06 (2006.01)
CPC B66F 7/065 (2013.01) 11 Claims
OG exemplary drawing
 
1. A device for lifting and stabilizing loads, comprising:
a frame; and
a cross-beam arranged below the frame, the device receiving the load and, via lifting structure fastened to the cross-beam, being adjustable for height, and being stabilized via two crossing telescopic struts which extend substantially in an imaginary vertical plane parallel to a displacement direction of the frame and which are pivotably articulated on the frame and pivotably articulated on the cross-beam, each of the crossing telescopic struts having one internal tube and one external tube and being connected to one another so as to be displaced in a synchronized manner and counter undesirable length variations as a result of forces acting in a longitudinal direction of the cross-beam;
wherein the connection of the two telescopic struts is established via three form-fitting traction parts;
wherein one respective first form-fitting traction part in the internal tube of a telescopic strut mounted at both ends via a respective inner disk and an outer disk;
wherein a third form-fitting traction part is mounted on two rotatable disks which are arranged entirely above the cross-beam so as to be horizontal between the two telescopic struts;
wherein the disks of the respective first traction part and the third traction part which are each situated on one side are concentrically and coaxially aligned, and connected to one another such that rotational movements between both disks are transmittable; and
wherein the respective first form-fitting traction part is fastened on an inner wall of the two external tubes such that a rotational movement of the outer disks leads to a corresponding synchronous displacement of the respective telescopic strut.