US 11,754,164 B2
Gear, gearwheel pair, and method for producing a gear
Matthias Koop, Donaueschingen (DE); Stephan Oberle, Villingen-Schwenningen (DE); Egor Melinkov, Titisee-Neustadt (DE); Eugen Stoppel, Muehlingen (DE); and Sebastian Birk, Trossingen (DE)
Assigned to IMS Gear SE & Co. KGaA, Donaueschingen (DE)
Filed by IMS Gear SE & Co. KGaA, Donaueschingen (DE)
Filed on Sep. 22, 2018, as Appl. No. 16/139,031.
Claims priority of application No. 17193000 (EP), filed on Sep. 25, 2017.
Prior Publication US 2019/0093748 A1, Mar. 28, 2019
Int. Cl. F16H 55/06 (2006.01); F16H 55/17 (2006.01); B29C 45/16 (2006.01); B29C 37/00 (2006.01); B29C 45/27 (2006.01); F16H 55/02 (2006.01); B29C 45/00 (2006.01); F16H 1/08 (2006.01); B29L 15/00 (2006.01); B29C 45/14 (2006.01); B29K 705/00 (2006.01)
CPC F16H 55/17 (2013.01) [B29C 37/0082 (2013.01); B29C 45/0025 (2013.01); B29C 45/1657 (2013.01); B29C 45/1671 (2013.01); B29C 45/2708 (2013.01); F16H 1/08 (2013.01); F16H 55/02 (2013.01); F16H 55/06 (2013.01); B29C 45/1459 (2013.01); B29C 45/14311 (2013.01); B29C 2045/1682 (2013.01); B29K 2705/00 (2013.01); B29L 2015/003 (2013.01); F16H 2055/065 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A gear, comprising:
an outer part having a gear rim made of a first plastic and having a number of injection-molded portions,
an inlay part made of metal, and
a connecting part made of a second plastic, the connecting part arranged between the inlay part and the outer part for an interlocked and/or materially-bonded connection between the inlay part and the outer part,
wherein the outer part has a plurality of depressions that mate to a plurality of corresponding projections of the connecting part, and wherein the plurality of depressions and corresponding projections are interlocked when mated,
wherein the connecting part overlaps the injection-molded portions, and the connecting part has undercuts acting at least along and perpendicular to an axis of rotation of the gear, wherein acting at least along and perpendicular to the axis of rotation of the gear prevents movement of the outer part relative to the connecting part along and perpendicular to the axis of rotation, and
wherein the plurality of corresponding projections comprise adjacent projections, and a projection has a length along the axis of rotation that is different than a length along the axis of rotation of an adjacent projection, and
wherein the plurality of depressions of the outer part comprise adjacent depressions, and a depression has a depth along the axis of rotation that is different than a depth along the axis of rotation of an adjacent depression.