Patent ID: 9003903
Filing Date: 2015-04-14
Classification: B60T,F15B,F16H,H02K,Y10T

Abstract:
1. A linear unit for applying an axially acting force, comprising a rotational/translational gear which has a threaded spindle and a threaded nut which are arranged in a gear housing, an electric motor with a rotor and a stator which are arranged in an electric motor housing, the threaded spindle is mounted rotatably and axially fixedly inside the gear housing and is connected to the rotor outside the gear housing; and an axially moveable force transmission member surrounded by the gear housing; wherein the threaded nut and the force transmission member are separate parts, and the threaded nut is secured against rotation to the force transmission member and the force transmission member is secured against rotation by the gear housing; wherein the threaded spindle directly contacts the rotor; wherein the rotor of the electric motor is in the form of a hollow shaft, and the gear housing has a portion of pot-shaped design which is surrounded by the rotor; wherein the portion of pot-shaped design of the gear housing surrounds the force transmission member, the threaded nut and the threaded spindle; wherein the force transmission member is guided axially movably and secured against rotation in the portion of pot-shaped design of the gear housing, wherein the force transmission member is secured against rotation by the portion of pot-shaped design; and wherein an axial bearing, on which the threaded spindle is supported, is arranged on the bottom of the pot-shaped portion.