Opening device
AssigneeKiekert AG
InventorsMichael Berres, Bernhard Drost
Life of this patent
Estimating the term…
Abstract
The invention relates to an opening device for a motor vehicle door, in particular a handle-free motor vehicle door such as, for example, a handle-free motor vehicle side door. For this purpose, the opening device has an electromotive drive (1 to 4) and an associated actuator (5) for acting on a door leaf. The actuator (5) acts on the door leaf with a travel-dependent force along its actuating travel(S). According to the invention, the electromotive drive (1 to 4) acts on the actuator (5) with the interposition of a rack-and-pinion gear (7, 8), wherein the rack-and-pinion gear (7, 8) operates with different transmission ratios on the actuator (5) along its actuating travel(S).
Claims12
An opening device for a motor vehicle door including a door leaf, the opening device comprising:
- an electromotive drive,
- a rack-and-pinion gear, and
- an actuator for acting on the door leaf,
- wherein the actuator acts on the door leaf with a travel-dependent force along an actuating travel,
- wherein the electromotive drive acts on the actuator with interposition of the rack-and-pinion gear,
- wherein the rack-and-pinion gear operates with different transmission ratios on the actuator along the actuating travel,
- wherein the rack-and-pinion gear has a nautilus-shaped pinion and a gear rack, and
- wherein the nautilus-shaped pinion defines a rolling curve with a radius that continually grows along the actuating travel of the actuator.
Dependencies are inferred from the claim text.