Gear reducer comprising eccentrics
US6129647A · kind A · utility
Inventor
Key dates
| Filing date | Jan 12, 1999 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | Jan 12, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H1/32
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Planacentric gear box having at least one gear wheel with external teeth (8) meshing with a gear ring with internal teeth (5) whose number of teeth is slightly bigger than the number of teeth of the gear wheel (8), this gear wheel (8) orbiting inside the gear ring (5) by the means of two eccentrics (27)(28) synchronously and simultaneously driven by prime reducers having a common input shaft, planacentric gear box for which the eccentic bearings (23)(24) are located outside the gear ring (5), the gear wheel with external teeth (8) being fixed on a torque arm (14) passing beside the gear ring (5), this torque arm (14) having, diametricaly opposed, two protuberances (19)(20) receiving each the outer ring of the bearings for the eccentrics (27)(28) which are generating the orbitation of the gear wheel (8), the median planes of the gear wheel (8) and of the eccentric bearings (23)(24) being close one to the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.