Method for producing a gear worm which is located in particular on an armature shaft, and such a gear worm

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United States of America Patent

PATENT NO 11904381
SERIAL NO

17285219

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Abstract

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The invention relates to a method for producing a gear worm (12) which is located in particular on an armature shaft (14) of an electromotive drive unit (10), wherein firstly a worm gear (20) having screw flanks (22) axially opposite one another on a longitudinal axis (18) is formed by means of a rolling tool, and subsequently a groove structure (24) which is concentric about the longitudinal axis (18) is formed on the screw flanks (22) by means of an additional process step. The invention also relates to a gear worm (12) produced according to the method according to the invention, and to a transmission drive unit (10) containing such a gear worm (12).

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Patent Owner(s)

Patent OwnerAddress
ROBERT BOSCH GMBHPOSTFACH 30 02 20 STUTTGART D-70442

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bao, Jie Shanghai, CN 16 186
Cettier, Daniel Karlsruhe, DE 2 3
De, Graaff Bernhard Karlsruhe, DE 2 0
Hertweck, Volker Baden-Baden, DE 3 11
Hertwig, Otmar Buehl, DE 1 0
Qiao, Guang Shanghai, CN 1 0
Thoene, Holger Rastatt, DE 4 28

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