Drive arrangement
AssigneeDr. Ing. h.c. F. Porsche Aktiengesellschaft
InventorsMichael Johann, Rainer Hilt, Jonas Kirchner
Life of this patent
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Abstract
A drive arrangement (1) for actuating a roller sun blind (21) of a motor vehicle has an actuation rod (2) with external thread (3) and a hollow cylinder (4) with internal thread (5). The actuation rod (2) is arranged coaxially in the hollow cylinder (4). The external thread (3) of the actuation rod (2) meshes with the internal thread (5) of the hollow cylinder (4). Thus, relative rotation of actuation rod (2) and hollow cylinder (4) displaces the actuation rod (2) axially relative to the hollow cylinder (4). The actuation rod (2) is guided in non-rotatable fashion, and the hollow cylinder (4) can be rotated by a drive (6).
Claims8
A drive arrangement for actuating a roller sun blind of a motor vehicle, comprising:
- an actuation rod with an upper end connected to the roller sun blind, a lower end opposite the upper end and an external thread disposed at least adjacent to the lower end;
- a hollow cylinder with opposite upper and lower ends positioned below the roller sun blind, an internal thread and external toothing, the actuation rod being arranged coaxially in the hollow cylinder with the external thread of the actuation rod meshing with the internal thread of the hollow cylinder so that rotation of the hollow cylinder relative to the actuation rod displaces the actuation rod axially relative to the hollow cylinder so that the actuation rod is guided non-rotatably from a retracted position where the lower end of the actuation rod is in proximity to the lower end of the hollow cylinder to an extended position;
- and
- a drive engaged with the external toothing of the hollow cylinder so that the hollow cylinder is rotated by the drive for selectively moving the actuation rod relative to the hollow cylinder.
Dependencies are inferred from the claim text.