Crank transmission with a crankshaft for connection to at least one foot-operated or hand-operated crank
AssigneesMarquardt GmbH, Pinion GmbH
InventorsMichael SCHMITZ, Christoph LERMEN, Dietmar WEISSER, Martin GÖTZ
Life of this patent
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Abstract
A crank transmission having a crankshaft for connection to at least one foot or hand crank and at least one gear wheel driven by means of the crankshaft (5) is proposed. A coupling unit is provided between the crankshaft and the gear wheel. Under load, the coupling unit has at least temporarily an angular offset between a crank-side receiving region and an output region connected to the gear wheel for receiving and outputting the torque generated via the crank.
Claims19
A transmission comprising a shaft and at least one wheel driven by means of the shaft, wherein a coupling unit is provided between the shaft and the wheel, wherein the coupling unit under load at least temporarily has an angular offset between a crank-side receiving region and an output region connected to the wheel for receiving and outputting the torque introduced into the shaft.
An apparatus for detecting a relative rotation of two rotatable guide elements which are rotatably mounted with respect to a housing and between which an air gap is formed which varies in dependence on the relative rotation, comprising
- a ring magnet magnetized so that a radially outer return circuit of a magnetic field is formed outside an outer circumference of the ring magnet and an inner return circuit of the magnetic field is formed inside an inner circumference of the ring magnet,
- a magnetic field-sensitive sensor disposed stationary with respect to the housing, wherein the magnetic field-sensitive sensor is disposed in the region of one return circuit of the outer return circuit of the magnetic field and the inner return circuit of the magnetic field, and
- wherein the variable air gap is disposed in the region of the other return circuit of the outer return circuit of the magnetic field and the inner return circuit of the magnetic field.
Dependencies are inferred from the claim text.