US 12,434,761 B2
Stroke sensor
Yohei Shirakawa, Tokyo (JP)
Assigned to Proterial, Ltd., Tokyo (JP)
Filed by Proterial, Ltd., Tokyo (JP)
Filed on Nov. 16, 2022, as Appl. No. 17/988,343.
Claims priority of application No. 2021-187359 (JP), filed on Nov. 17, 2021.
Prior Publication US 2023/0150571 A1, May 18, 2023
Int. Cl. B62D 5/09 (2006.01); B62D 5/00 (2006.01)
CPC B62D 5/092 (2013.01) [B62D 5/001 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A stroke sensor configured to detect a stroke position of a rod-shaped measuring object that strokes in an axial direction, comprising:
two disk-shaped rotors configured to rotate along with a stroke of the measuring object;
a rotation detecting unit configured to detect rotations of the two rotors, respectively; and
a stroke position detecting unit configured to detect the stroke position of the measuring object based on the rotations of the two rotors detected by the rotation detecting unit,
wherein at least one of the two rotors is provided in direct contact with the measuring object,
wherein the two rotors are provided side by side in an arrangement direction perpendicular to an axial direction of the measuring object and are provided so as to be adjacent to the measuring object in an arrangement perpendicular direction perpendicular to the axial direction and the arrangement direction,
wherein each of the two rotors is provided in such a manner that a rotation axis direction of each of the two rotors is inclined with respect to the arrangement direction.