US 12,466,690 B2
Cable drum support for rotatably supporting a cable drum
Joachim Hillenmaier, Ingelfingen-Eberstal (DE); Philip Kircher, Asperg (DE); and Edgar Baumann, Igersheim / Bernsfelden (DE)
Assigned to WOLFF & MÜLLER TIEF-UND STRASSENBAU GMBH & CO. KG, Stuttgart (DE)
Appl. No. 18/257,996
Filed by Wolff & Müller Tief- und Straßenbau Gmbh & Co. KG, Stuttgart (DE)
PCT Filed Dec. 17, 2021, PCT No. PCT/EP2021/086422
§ 371(c)(1), (2) Date Jun. 16, 2023,
PCT Pub. No. WO2022/129481, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 20 2020 107 393.1 (DE), filed on Dec. 18, 2020.
Prior Publication US 2024/0051783 A1, Feb. 15, 2024
Int. Cl. B65H 49/30 (2006.01)
CPC B65H 49/305 (2013.01) [B65H 2403/93 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A cable drum support for rotatably supporting a cable drum, comprising:
a cross beam, on which two holding arms are arranged, which are aligned parallel to one another,
wherein each holding arm has a respective laterally protruding and rotatably supported bearing pin on a free end, wherein the bearing pins are arranged aligned with one another on the holding arms so as to face one another and aligned parallel to the cross beam, and wherein at least one of the holding arms is shiftably supported along the cross beam, and
at least one actuatable actuator, which is formed to shift at least the one of the holding arms and/or to apply a torque to at least one bearing pin for rotating about its longitudinal central axis,
wherein a first actuator is arranged on the cross beam and is operatively connected to at least one of the holding arms, for the purpose of shifting the at least one of the holding arms, wherein a first actuator is assigned to each of the holding arms, respectively, for the shifting thereof,
wherein at least one second actuator is operatively connected to the at least one bearing pin in order to apply a torque to the latter for rotating purposes,
wherein the first actuator and the at least one second actuator are each formed as a hydraulic actuator, and
wherein a first hydraulic system, which has a first hydraulic circuit comprising the first actuator and a second hydraulic circuit comprising the at least one second actuator and at least one switching valve, by means of which the first hydraulic circuit or the second hydraulic circuit can optionally be connected to a hydraulic connector, which can be connected to a hydraulic supply system.