US 8,783,134 B2Granted

Gearing

AssigneeWittenstein AG

InventorsFrank Michel, Michael Schmidt, Thomas Bayer, Heiko Schreiber, Lars Estermann

Life of this patent

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Abstract

Gearing (1), in particular single-stage gearing having a transmission ratio of greater than 1 to 10, having an internal gear (2) with an internal toothing (5), a first toothed ring with radially movable first teeth (6) for engaging into the internal toothing (5), a second toothed ring with radially movable second teeth (7) for engaging into the internal toothing (5), an inner shaft (21) on which is fastened a first cam disk (16) for the radial drive of the first teeth (6) and a second cam disk (17) for the radial drive of the second teeth (7), and a load dividing device for dividing a torque transmitted via the toothed rings between the toothed rings.

Claims11

Dependent claims

Gearing, in particular single-stage gearing having a transmission ratio of greater than 1 to 10, comprising

(a) an internal gear with an internal toothing,
(b) a first toothed ring with radially movable first teeth for engaging into the internal toothing,
(c) a second toothed ring with radially movable second teeth for engaging into the internal toothing,
(d) an inner shaft on which is fastened a first cam disk for the radial drive of the first teeth and a second cam disk for the radial drive of the second teeth,
(e) wherein the first teeth and the second teeth provide different degrees of play for dividing a torque transmitted via the toothed rings between the toothed rings, and
(f) wherein for different degrees of play of the first teeth and the second teeth, the cam disks have a different radius maxima, the first teeth and the second teeth have different lengths, and/or ring segments of the first toothed ring and of the second toothed ring have different radial thicknesses.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/073,572Filed 28 Mar 2011
Priority: DE 10 2010 016 58122 Apr 2010
Published: US 2011/0259144 A127 Oct 2011
Granted: 22 Jul 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

F16H 25/06
For conveying rotary motion: with intermediate members guided along tracks on both rotary members
Y10T 74/19
Machine element or mechanism: gearing
F16H
Gearing
Y10T
Technical subjects covered by former us classification

Family

US 2011/0259144 A1Pre-grant publication · published 27 Oct 2011
US 8,783,134 B2This patent

From the US filing history. Foreign family members aren’t listed.

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