Position sensor for working cylinder
AssigneeSIKO GmbH
InventorsHanspeter Thoma, Joachim Reichle, Matthias Roth
Life of this patent
Estimating the term…
Abstract
A position sensor (1.1, 1.2) for a working cylinder (2.1, 2.2) with a cable drum (4.1, 4.2), a cable (5) with a piston anchor (7.1, 7.2) and an interface (13.1, 13.2) for determining a position and a movement of a piston (3.1, 3.2) of the working cylinder (2.1, 2.2), the position sensor (1.1, 1.2) is to be operatively connected to the working cylinder (2.1, 2.2) from outside in the area of a cylinder head (15.1, 15.2).
Claims15
A working cylinder having a position sensor (1.1, 1.2), the working cylinder (2.1, 2.2) having a piston (3.1, 3.2) and a cylinder head (15.1, 15.2), the position sensor comprising a cable drum (4.1, 4.2), a cable (5) wound onto the cable drum, a piston anchor (7.1, 7.2) for securing the cable (5) to the piston (3.1, 3.2), and an interface (13.1, 13.2), wherein position and movement of the piston (3.1, 3.2) are determined by movement of the cable (5) on the cable drum (4.1, 4.2) and transmitted to the interface, and wherein the position sensor further comprises a flange connection (10.1, 10.2) having a flange portion adjacent to an outer cylindrical surface of a sidewall of the cylinder head, and having an extending portion extending through the sidewall of the cylinder head, the cable (5) extending from the cable drum (4.1, 4.2) through the flange connection (10.1, 10.2) and around a deflection roller (11.1) to connect with the piston (3.1, 3.2) through the piston anchor (7.1, 7.2), and further comprising a sensor arm (6.1, 6.2) which extends through the flange connection (10.1, 10.2).
A working cylinder having a position sensor (1.1, 1.2), the working cylinder (2.1, 2.2) having a piston (3.1, 3.2) and a cylinder head (15.1, 15.2), the position sensor comprising a cable drum (4.1, 4.2), a cable (5) wound onto the cable drum, a piston anchor (7.1, 7.2) for securing the cable (5) to the piston (3.1, 3.2), and an interface (13.1, 13.2), wherein position and movement of the piston (3.1, 3.2) are determined by movement of the cable (5) on the cable drum (4.1, 4.2) and transmitted to the interface, and wherein the position sensor further comprises a flange connection (10.1, 10.2) having a flange portion adjacent to an outer cylindrical surface of a sidewall of the cylinder head, and having an extending portion extending through the sidewall of the cylinder head, the cable (5) extending from the cable drum (4.1, 4.2) through the flange connection (10.1, 10.2) and around a deflection roller (11.1) to connect with the piston (3.1, 3.2) through the piston anchor (7.1, 7.2), wherein the cable drum (4.1, 4.2) transmits measurement data on the position and movement of the piston (3.1, 3.2) to the interface (13.1, 13.2), and wherein transmission of the measurement data of the cable drum (4.1, 4.2) to the interface (13.1, 13.2) is wireless.
A working cylinder having a position sensor (1.1, 1.2), the working cylinder (2.1, 2.2) having a piston (3.1, 3.2) and a cylinder head (15.1, 15.2), the position sensor comprising a cable drum (4.1, 4.2), a cable (5) wound onto the cable drum, a piston anchor (7.1, 7.2) for securing the cable (5) to the piston (3.1, 3.2), and an interface (13.1, 13.2), wherein position and movement of the piston (3.1, 3.2) are determined by movement of the cable (5) on the cable drum (4.1, 4.2) and transmitted to the interface, and wherein the position sensor further comprises a flange connection (10.1, 10.2) having a flange portion adjacent to an outer cylindrical surface of a sidewall of the cylinder head, and having an extending portion extending through the sidewall of the cylinder head, the cable (5) extending from the cable drum (4.1, 4.2) through the flange connection (10.1, 10.2) and around a deflection roller (11.1) to connect with the piston (3.1, 3.2) through the piston anchor (7.1, 7.2), and further comprising a seal (12.1, 12.2) between the cable drum (4.1, 4.2) and the interface (13), wherein the seal comprises a non-magnetic flange and a radial high-pressure seal.
Dependencies are inferred from the claim text.