Bearings – Linear bearing – With detection – nonbearing magnetic or hydraulic feature
Patent
1991-02-11
1993-01-26
Footland, Lenard A.
Bearings
Linear bearing
With detection, nonbearing magnetic or hydraulic feature
384 37, 384 40, 384 42, F16C 2912
Patent
active
051817802
ABSTRACT:
A sliding contact type linear motion guide unit having at least one of desired anti-vibration and braking functions is provided. The unit includes a rail extending over a desired length, a slider movably mounted on the rail and a sliding member interposed between the rail and the slider. The sliding member includes an elastic member fixedly attached to the slider and a contact member fixedly attached to the elastic member and having a contact surface in sliding contact with the rail. In the preferred embodiment, the elastic member includes an elastic enclosure having therein a fill, such as a gas, liquid or gel, under pressure, so that the contact pressure between the contact member and the rail can be maintained substantially unchanged and uniformly. A control valve is preferably provided in communication with the interior of the enclosure.
REFERENCES:
patent: 3054645 (1962-09-01), Evans
patent: 4773769 (1988-09-01), Church
patent: 4773770 (1988-09-01), Osawa
Footland Lenard A.
Nippon Thompson Co. Ltd.
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