Toothed rack and method for producing a toothed rack for a steering gear of a motor vehicle
US11298765B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 4, 2017 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Dec 6, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H55/26
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rack for a steering gear of a motor vehicle may include a toothed portion having a toothing, and a shaft portion. Separate segments comprising at least one in each case bar-shaped toothed segment and one shaft segment are provided, are aligned on a common longitudinal axis, and are connected to one another at a joint. The method may involve providing a raw material piece having a piece length that is a multiple of a segment length, thermally continuously hardening the raw material piece across a multiple of a segment length to produce a hardened semi-finished segment product, cutting to length a hardened segment from the hardened semi-finished segment product, providing a further segment, and joining the hardened segment to a further segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.