US 12,012,314 B2
Working machine comprising a boom and a boom bracing
Sebastian Rauh, Nersingen/Oberfahlheim (DE); Tobias Riedmiller, Legau (DE); Sebastian Stanger, Dietenheim (DE); Bernd Wager, Kirchdorf an der Iller (DE); and Constantin Wegmann, Kempten (DE)
Assigned to Liebherr-Hydraulikbagger GmbH, Kirchdorf/lller (DE)
Filed by Liebherr-Hydraulikbagger GmbH, Kirchdorf/lller (DE)
Filed on Nov. 4, 2020, as Appl. No. 17/089,198.
Claims priority of application No. 10 2019 130 784.8 (DE), filed on Nov. 14, 2019.
Prior Publication US 2021/0147197 A1, May 20, 2021
Int. Cl. B66C 23/82 (2006.01); B66C 23/64 (2006.01); B66C 23/00 (2006.01); E02F 3/30 (2006.01); E02F 3/38 (2006.01); E02F 3/96 (2006.01)
CPC B66C 23/823 (2013.01) [B66C 23/64 (2013.01); B66C 23/54 (2013.01); E02F 3/301 (2013.01); E02F 3/382 (2013.01); E02F 3/963 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A working machine, comprising
a boom (1),
a multipart boom bracing (10),
at least one actuator (14) arranged to actuate the boom bracing (10),
a turntable (2),
an actuator lever (13) rotatably articulated to the turntable (2) and operatively connected to the boom bracing (10), to introduce tensile force into the bracing (10),
two connecting levers (15, 16) rotatably articulated to the boom (1), with the multipart boom bracing (10) having three tension elements (11a, 11b, 11c) interconnected to each other and to the boom (1) through a respective one of the two connecting levers (15, 16), and
with said three tension elements (11a, 11b) pivotally mounted at different axes (20-23) located on the respective connecting levers (15, 16).