US 2019/0316660 A1 · ACTUATOR

Abstract

An actuator for driving a rotatable component includes a first, rotating member comprising a screw and a second member comprising a nut threaded to said screw, wherein rotation of said first member causes axial movement of said first or second member. The component also includes a third member coupled to the second member, wherein axial movement of said first or second member causes axial movement of said third member and a fourth, rotating member coupled to said third member and connectable to said component. The system also includes a bearing system located between said third member and said fourth member, said bearing system configured to cause said fourth member to rotate upon said axial movement of said third member so as to drive said component.

Claims2

Dependent claims

A bearing system comprising:

a first component axially moveable along a first axis;
a second component rotatable about a second axis, wherein said first component is restricted against rotational movement and said second component is restricted against axial movement;
wherein said first component comprises a first helical rail, and said second component comprises a second helical rail that opposes said first helical rail;
and
one or more roller bearings located between said first helical rail and said second helical rail, wherein upon axial movement of said first component, said first helical rail is urged towards said second helical rail such that a force is applied through said roller bearings to said second component so as to rotate said second component about said second axis.

2 more elements

Dependencies are inferred from the claim text.

Actuator

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Actuator

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Abstract

Claims2