Steplessly variable V-pulley looping transmission
AssigneeRuey-Zon Chen
InventorMatthias A. Dietl
Life of this patent
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Abstract
A pulling device transmission includes an stepless V-belt connection two pulleys wherein at least one of the pulleys is an adjusting pulley which is composed by two halves between which the belt runs through. The operative diameter of the adjusting pulley is adjustable relative to the belt plane where the belt runs thereon and the adjusting pulley halves are symmetrically pre-stressed with respect to the belt plane. A variator unit is designed for displacing the travel path of the belt in the respective to the adjusting pulley.
Claims11
A pulling means transmission comprising
- two endless pulling means,
- three pulling means pulleys for the two endless pulling means running thereon, wherein one of the pulleys is a double pulley of a fixed diameter and the other two are adjusting pulleys, each adjustable with respect to an operative diameter between two limit positions, and
- a variator unit for displacing the path of travel of at least one pulling means in the respective pulling means planes either with respect to at least one of the adjusting pulleys,
- wherein each adjusting pulley is pre-stressed in one direction towards one of the limit positions and symmetrically pre-stressed with respect to the pulling means planes of the respective pulling means running thereon.
A belt transmission with two endlessly circulation belts, comprising:
- four belt pulleys of which two central belt pulleys run in non-rotatably intercoupled relationship as a non-adjustable double belt pulley between the other two belt pulleys as outer pulleys,
- the outer belt pulleys are in the form of adjusting pulleys insofar as they each comprise two pulley halves with pulling means running surface which face inclinedly outwardly from the central pulling means plane, and are symmetrically axially inwardly prestressed by means of compression springs arranged coaxially on the outsides of the pulley halves, and
- the non-adjustable double belt pulley is mounted on a variator unit which is pivotable in the pulling means plane about a pivot axis which is arranged at a spacing relative to the connecting line between the outer adjusting pulleys.
Dependencies are inferred from the claim text.