Patent ID: 6230587
Filing Date: 2001-05-15
Classification: F16H,Y10T

Abstract:
Corrugated gear including the following features:a) a rigid internally geared gearwheel;b) a flexible gear with external gearing provided within said internally geared gearwheel;c) a wave generator for bringing the gear with external teeth into such a cross-sectional shape, that the gear with external gearing is only partially meshing with the rigid gear with internally geared gearing and rotates the engaged segment of the two gears in the direction of the circumference;d) a relative movement of the two gears results from the rotation of the wave generator;e) the flexible gear and the rigid gear are both end-toothed gears;f) in order to avoid engagement obstructions the tooth profile of the rigid gear and the tooth profile of the flexible gear are adapted to each other;and wherein:g) the tooth profile of the flexible gear and the tooth profile of the rigid internal gear are chosen such that each tooth of the flexible gear can make a loop-shaped movement within a tooth gap of the tooth profile of the rigid internal gear, wherebyh) the movement contour of a tooth of the flexible gear determines the contour of the tooth gap of the tooth profile of the rigid gear while making its loop-shaped movement.