US 12,130,135 B2
Apparatus, in particular joystick, for detecting the tilt of a pivot lever
Thomas Schliesch, Kürten (DE)
Assigned to Max Baermann Gesellschaft mit beschränkter Haftung, Bergisch Gladbach (DE)
Appl. No. 18/000,176
Filed by MAX BAERMANN GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNG, Bergisch Gladbach (DE)
PCT Filed May 18, 2021, PCT No. PCT/EP2021/063049
§ 371(c)(1), (2) Date Nov. 29, 2022,
PCT Pub. No. WO2021/239498, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 10 2020 114 464.4 (DE), filed on May 29, 2020.
Prior Publication US 2023/0228553 A1, Jul. 20, 2023
Int. Cl. G01B 7/30 (2006.01); G01B 7/14 (2006.01); G01D 5/14 (2006.01); G01D 5/244 (2006.01); G06F 3/033 (2013.01); H01F 7/02 (2006.01); G05G 9/047 (2006.01)
CPC G01B 7/30 (2013.01) [G01D 5/145 (2013.01); H01F 7/021 (2013.01); G05G 2009/04755 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for detecting a tilt angle (α) of a pivot lever (2 2′), the apparatus comprising:
a pivot lever (2, 2′) which can be tilted about a fulcrum (S) relative to a predetermined axis (Z),
a magnetic device which is arranged on the pivot lever and can be moved with the latter,
a sensor device (5) which is spaced apart from the pivot lever and is designed to detect a magnetic field, and
an evaluation device for determining the tilt angle on the basis of the detected magnetic field,
wherein the magnetic device has at least one permanent magnet (3, 3′) with a cylindrical shape and uniaxial magnetization,
wherein the pivot lever (2, 2′) is mounted so as to be deflectable in translation coaxially with its axis in the direction of the sensor device (5),
wherein the permanent magnet (3, 3′) tapers radially over the extent (hs) of a predefined axial end section towards the axial front side on its end facing the sensor device.