Gear train for an actuator
AssigneeKEIPER GmbH & Co. KG
InventorRolf Schüler
Life of this patent
Estimating the term…
Abstract
In a gear train (10, 30) for an actuator, in particular of a vehicle seat (2), the gear train comprises a drive (11) that can be rotated about a rotational axis (A), at least one eccentric cam (12, 13) that is driven by the drive (11), a pinion (14, 15) that is driven by the eccentric cam (12, 13), a gear ring (16), which meshes with the pinion (14, 15) and in relation to which the pinion (14, 15) executes a rolling motion that defines a point of rolling contact (W), and a take-off drive (18) that taps the relative rolling motion. At least some sections of the material of the pinion (14, 15) and/or the ring gear (16) in the vicinity of the point of rolling contact (W) are elastically deformable, in order to produce surface contact at the point of rolling contact (W).
Claims10
A gear train for an actuator for use in a vehicle, the gear train comprising:
- a drive for being rotated about a rotational axis;
- at least one eccentric for being driven by the drive;
- a ring gear;
- a pinion that is meshed with the ring gear and is for being driven by the eccentric so that, relative to the ring gear, the pinion carries out a rolling motion defining a point of rolling contact;
- and
- an output for rotating in response to the rolling motion of the pinion,
- wherein the pinion's material that is proximate the point of rolling contact is at least partially elastically deformable, the ring gear's material that is proximate the point of rolling contact is at least partially elastically deformable, or any combination thereof, so that there is surface contact at the point of rolling contact, and
- wherein the pinion comprises recesses configured for making the pinion's material that is proximate the point of rolling contact at least partially elastically deformable, the ring gear comprise recesses configured for making the ring gear's material that is proximate the point of rolling contact at least partially elastically deformable, or any combination thereof.
Dependencies are inferred from the claim text.