Electrorheological fluid damper for a slide mechanism
US5462361A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1994 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Sep 14, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2322/39
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electrorheological fluid damper for a slide mechanism including a base and a table, is made up of base-side conductive arcuate pipes different in diameter (serving as a positive electrode), and table-side conductive arcuate pipes different in diameter (serving as a negative electrode) which are arranged alternately in such a manner that they are coaxial with one another, so that the contact areas of the electrodes which are in contact with the electrorheological fluid are increased without increase of the size of the damper itself. When the table is being slid, no voltage is applied to the electrorheological fluid, so that the viscosity of the electrorheological fluid is minimum, being of only its solution, and when the table is stopped, voltage is applied to the electrorheological fluid, so that the viscosity of the electrorheological fluid is increased. Thus, the electrorheological fluid damper requires no high voltage and is not bulky, and is high both in positioning accuracy and in shock absorbing performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.