Screw and nut device equipped with a rotation brake

Details Screw and nut device equipped with a rotation brake Screw and nut device equipped with a rotation brake

1987-08-19

1989-05-23

Wilson, Neill R.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Having structure to restrict rotation of threaded, mating...

Comprising a thread lock

411324, 411438, 411252, F16B 3712

Patent

active

048325503

ABSTRACT:
In a device for bringing about rotational braking in a screw and nut device incorporating a nut, which is rotatable and displaceable relative to a threaded bar, and a helical spring enclosing the bar, which spring at braking is clamped against the bar, for effecting a big braking moment and a small wear in the thread of the bar, there is arranged a helical element with a loose fit in the thread groove of the bar, which element extends radially outside the thread flank tip. The helical spring is futhermore arranged with radial pretension of the thread flank tip between the winding turns of the helical element.

REFERENCES:
patent: 1258777 (1918-03-01), Johannessen et al.
patent: 1830919 (1931-11-01), Sundh
patent: 2387257 (1945-10-01), Haas
patent: 4298297 (1981-11-01), Courson

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