Spindle drive assembly and vehicle flap with a spindle drive assembly
A spindle drive assembly for opening and/or closing a vehicle flap is described, having a spindle extending along a spindle drive axis and a spindle drive motor which is drivingly coupled to the spindle via a gearing and the motor shaft of which is arranged substantially coaxially with the spindle drive axis, wherein a coupling compensating an axial offset and a hysteresis brake are drivingly interposed between the spindle drive motor and the gearing. In addition, a vehicle flap with such a spindle drive assembly is presented.
1. A spindle drive assembly for opening and/or closing a vehicle flap, comprising a spindle extending along a spindle drive axis and a spindle drive motor which is drivingly coupled to the spindle via a gearing and a motor shaft of which is arranged substantially coaxially with the spindle drive axis, wherein a coupling compensating an axial offset and a hysteresis brake are drivingly interposed between the spindle drive motor and the gearing.
2. The spindle drive assembly according to claim 1 , characterized in that the coupling is an Oldham coupling and comprises a drive motor-side coupling part and a gearing-side coupling part.
3. The spindle drive assembly according to claim 1 , characterized in that the hysteresis brake comprises a stationary hysteresis brake component, fastened to a spindle drive assembly housing and/or to a gearing housing, and a rotatable hysteresis brake component rotationally coupled to a motor shaft of the spindle drive motor.
4. The spindle drive assembly according to claim 3 , characterized in that the rotatable hysteresis brake component is fastened to a drive motor-side coupling part or is integrated in the drive motor-side coupling part.
5. The spindle drive assembly according to claim 4 , characterized in that the rotatable hysteresis brake component is molded into in the drive motor-side coupling part.
6. The spindle drive assembly according to claim 1 , characterized in that viewed perpendicularly to the spindle drive axis, the coupling is arranged substantially completely inside the hysteresis brake in an axial direction.
7. A vehicle flap, in particular a vehicle hatch or tailgate or vehicle trunk lid, comprising a spindle drive assembly according to claim 1 .
8. The spindle drive assembly according to claim 2 , characterized in that the hysteresis brake comprises a stationary hysteresis brake component, fastened to a spindle drive assembly housing and/or to a gearing housing, and a rotatable hysteresis brake component rotationally coupled to a motor shaft of the spindle drive motor.
9. The spindle drive assembly according to claim 2 , characterized in that a rotatable hysteresis brake component is fastened to the drive motor-side coupling part or is integrated in the drive motor-side coupling part.
10. The spindle drive assembly according to claim 8 , characterized in that the rotatable hysteresis brake component is fastened to the drive motor-side coupling part or is integrated in the drive motor-side coupling part.
11. The spindle drive assembly according to claim 1 , characterized in that viewed perpendicularly to the spindle drive axis, the coupling is arranged substantially completely inside a stationary hysteresis brake component in an axial direction.