US 12,281,676 B2
Synchronization of a clutch for manual operation of an actuator
Tobias Wasser, Freiburg (DE); Girish Panakanahalli Ningaiah, Karnataka (IN); Kiran Krishnegowda, Karnataka (IN); and Atiqh Ahmed Mohammed, Telangana (IN)
Assigned to AUMA Riester GmbH & Co. KG, Müllheim (DE)
Appl. No. 18/561,375
Filed by AUMA Riester GmbH & Co. KG, Müllheim (DE)
PCT Filed Oct. 19, 2021, PCT No. PCT/EP2021/079009
§ 371(c)(1), (2) Date Nov. 16, 2023,
PCT Pub. No. WO2022/242890, PCT Pub. Date Nov. 24, 2022.
Claims priority of application No. 202110555650.2 (CN), filed on May 21, 2021.
Prior Publication US 2024/0369110 A1, Nov. 7, 2024
Int. Cl. F16D 11/14 (2006.01); F16D 21/06 (2006.01); F16K 31/04 (2006.01); F16K 31/05 (2006.01)
CPC F16D 11/14 (2013.01) [F16D 21/06 (2013.01); F16K 31/047 (2013.01); F16K 31/05 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An actuator (1) for actuating a control element by a driven member (2) of the actuator (1), the actuator (1) comprising,
a drive motor;
a handwheel (3);
a motor clutch (5) for interrupting a first drivetrain from the drive motor to the driven member (2);
a handwheel clutch (6) for interrupting a second drivetrain from the handwheel (3) to the driven member (2);
a common coupling element (7) shared by the motor clutch (5) and the handwheel clutch (6), the common coupling element (7) is switchable using a manually operable lever-arm-mechanism from
a) engagement with a counter coupling element (9) of the motor clutch (5) to
b) engagement with a protrusion (12) of the handwheel clutch (6) that is axially movable along a coupling axis (11) of the handwheel clutch (6);
the handwheel clutch (6) is formed by the common coupling element (7) and by a corresponding counter coupling element (8) that is rotationally coupled to the handwheel (3);
the common coupling element (7) is moveable axially and relatively to the counter coupling element (8) of the handwheel clutch (6) along longitudinal serrations (10) of the driven member (2) in a first axial movement (19), using said lever-arm-mechanism; and
the protrusion (12) of the handwheel clutch (6) is arranged to perform a second axial movement (20) independent of the first axial movement (19).