US 12,326,160 B2
Locking unit
Ralph Wassermann, Holzgünz (DE); Florian Hölzle, Illertissen (DE); and Matthias Wetzler, Erkheim (DE)
Filed by SVM Schultz Verwaltungs-GmbH & Co. KG, Memmingen (DE)
Filed on Dec. 8, 2022, as Appl. No. 18/063,526.
Claims priority of application No. 102021132545.5 (DE), filed on Dec. 9, 2021.
Prior Publication US 2023/0184271 A1, Jun. 15, 2023
Int. Cl. F15B 15/26 (2006.01); H01F 7/08 (2006.01); H01F 7/16 (2006.01); F16H 63/34 (2006.01)
CPC F15B 15/26 (2013.01) [H01F 7/081 (2013.01); H01F 7/1607 (2013.01); F16H 63/3483 (2013.01); H01F 2007/086 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A locking unit comprising:
a hydraulically actuable piston;
an electromagnet comprising a coil and an armature;
a coupling rod fastened to the armature or to an armature rod;
a magnetic element attached to the coupling rod in an opposed manner with respect to the armature or with respect to the armature rod;
a guide tube configured to guide the magnetic element;
at least one prestressing element directly contacting the coupling rod and the guide tube such that the coupling rod holds the magnetic element in the guide tube radially without play; and
at least one latching element configured to interact with the armature or the armature rod which is attached thereto,
wherein the hydraulically actuable piston or a sleeve which is connected to the hydraulically actuable piston has at least one latching receptacle, wherein the hydraulically actuable piston can be fixed by a securing interaction of the at least one latching element with the at least one latching receptacle.