Method of making rings for gears having internal or external toothing
US5497548A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1993 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | Sep 24, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4948
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
To reduce the mass of internally or externally toothed gears, a thin metal ring having internal or external toothing is made and bonded to a ring of fibrous composite material. Furthermore, to make rings for gears having internal or external toothing, fabric hoses of fibrous composite materials having a fibre orientation of .+-.45.degree. are applied in a number of layers in the peripheral direction to the bottom and side flanks of a U-shaped groove-like depression of a rotating production device; the remaining free space in the interior of the applied fabric hose layers is filled with a unidirectionally wound roving, thereby forming an integral ring after the curing or hardening. Moreover, to make rings for gears having internal or external toothing, two thin-walled rings of fabric laminates serving as shear walls and having a fibre orientation of .+-.45.degree. for taking up the shear load and comprising carbon-fibre-reinforced plastics or plastics with other reinforcing fibres are adhesively bonded after the curing to a unidirectional winding applied between the annular shear walls of the rings for taking up the bending load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.