Patent · US Active

Ball screw drive and associated electromechanical actuator

US10626966B2 · kind B2 · utility

0Cited by

9References

16Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Mario Kreutzer · Sonneberg, DE
Christian Marty · Boulogne, FR
Harry SCHMEIKO · Weisendorf, DE
Manfred Götz · Brakel, DE

Key dates

Filing date	Jan 14, 2016
Grant date	Apr 21, 2020
Priority date	—
Expiry date	May 17, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D2125/40
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A ball screw of an electromechanical brake comprising a ball screw nut disposed on a spindle, wherein the spindle includes complementary tracks formed on the spindle and the ball screw nut. The ball screw further includes a race that includes a plurality of ball pockets spaced apart from one another and a protruding section that includes a concave bearing surface, a ball housed between the concave bearing surface and an end section of a first spring element for a main load direction, and a second spring element for a return stroke direction, wherein the second spring element includes a second spring end section in contact with an opposite side of the bearing surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.