Damping element, and its installation in a motor-driven hand tool
US4667749A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1985 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Mar 19, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A damping element for damping three-dimensional and torsional oscillations, in particular in hand tools, is proposed. The damping element includes an approximately bell-shaped rubber spring element defining a cavity which is filled with a damping fluid. The cavity is closed off at its open end with a rubber diaphragm. Within the cavity there is mounted at least one partition which defines overflow conduits or passages, and additional partitions at an angle to the partition defining the overflow conduits. The partition defining the overflow conduits is rigidly joined to a fastening sleeve situated in the rubber spring at the end thereof opposite to its open end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.