Bearings – Linear bearing – With temperature – electrical – or orthogonal feature
Patent
1994-09-14
1995-10-31
Footland, Lenard A.
Bearings
Linear bearing
With temperature, electrical, or orthogonal feature
384 99, F16C 2902
Patent
active
054623618
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.
REFERENCES:
patent: 5201585 (1993-04-01), Gans et al.
patent: 5219447 (1993-06-01), Arvidsson
patent: 5281029 (1994-01-01), Morita
patent: 5294360 (1994-03-01), Carlson et al.
Sato Chuichi
Shinno Hidenori
Tsukamoto Shigemi
Footland Lenard A.
NSK Ltd.
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