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US 12,024,221 B2Granted
Adjustment drive for a steering column and steering column for a motor vehicle
AssigneesThyssenkrupp Presta AG, thyssenkrupp AG
InventorsSebastian Huber, Jean-Pierre Specht
Life of this patent
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Abstract
An adjustment drive for a steering column of a motor vehicle may include a threaded spindle having an external thread, engaging with a corresponding internal thread of a spindle nut. A thread tooth of the external thread and a thread groove of the internal thread have corresponding axially sliding thread flanks that are braced against each other. At least one thread flank comprises at least one recessed lubricant uptake.
Claims19
An adjustment drive for a steering column of a motor vehicle, comprising:
- a threaded spindle having an external thread;
- and
- a spindle nut with an internal threaded that engages with the external thread of the threaded spindle,
- wherein a thread tooth of the external thread and a thread groove of the internal thread have corresponding axially sliding thread flanks that are braced against each other, wherein at least one of the thread flanks comprises a recessed lubricant uptake having an elongated lubrication groove, wherein at least a portion of the recessed lubricant uptake has a spiral shape.
1 more element
An adjustment drive for a steering column of a motor vehicle, comprising:
- a threaded spindle having an external thread;
- and
- a spindle nut with an internal threaded that engages with the external thread of the threaded spindle,
- wherein a thread tooth of the external thread and a thread groove of the internal thread have corresponding axially sliding thread flanks that are braced against each other, wherein at least one of the thread flanks comprises a recessed lubricant uptake, wherein the recessed lubricant uptake is a first lubricant uptake, the adjustment drive comprising a second lubricant uptake, wherein the first and second lubrication uptakes are spiral shaped in opposite directions.
1 more element
Dependencies are inferred from the claim text.