Rotary damper
AssigneeITW-ATECO GmbH
InventorMarcus Wonn
Life of this patent
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Abstract
A rotary damper with a housing, with a rotor rotatably mounted in a closed chamber of the housing and with a viscous medium disposed within the chamber, wherein the rotor is so formed and so cooperates with the wall of the chamber that with a relative rotation of the housing and the rotor, a braking effect is produced by the medium, and wherein at least two rotor elements are provided which are arranged coaxially, preferably commonly in the chamber, and the neighboring rotor elements are coupled such that they are freely rotatable relative to one another over a limited rotational angle.
Claims21
A rotary damper, comprising:
- a housing defining a chamber having an interior peripheral wall;
- a rotor rotatably disposed within said housing chamber about a rotary axis;
- and
- a viscous medium disposed within said housing chamber wherein said rotor operatively cooperates with said interior peripheral wall of said housing chamber such that a damping effect is achieved upon rotation of said rotor with respect to said housing,
- said rotor comprising at least two rotor elements coaxially disposed within said housing chamber and operatively coupled together such that said at least two rotor elements can freely rotate relative to each other through a limited angle of rotation about said rotary axis whereby when a first one of said at least two rotor elements is rotated relative to said housing, a first damping effect having a first damping value is achieved, whereas when a second one of said at least two rotor elements is also rotated relative to said housing along with said first one of said at least two rotor elements, a second damping effect having a second damping value is achieved.
The rotary damper of 4, wherein:
- said engagement means comprises a claw clutch.
In combination, a rotary damper system, comprising:
- a rotary part which is to have rotary movement thereof damped;
- a housing defining a chamber having an interior peripheral wall;
- a rotor rotatably disposed within said housing chamber about a rotary axis and operatively connected to said rotary part which is to have rotary movement thereof damped;
- a viscous medium disposed within said housing chamber wherein said rotor operatively cooperates with said interior peripheral wall of said housing chamber such that a damping effect is achieved upon rotation of said rotor with respect to said housing,
- said rotor comprising at least two rotor elements co-axially disposed within said housing chamber and operatively coupled together such that said at least two rotor elements can freely rotate relative to each other through a limited angle of rotation about said rotary axis whereby when a first one of said at least two rotor elements is rotated relative to said housing, a first damping effect having a first damping value is achieved, whereas when a second one of said at least two rotor elements is also rotated relative to said housing along with said first one of said at least two rotor elements, a second damping effect having a second damping value is achieved.
Dependencies are inferred from the claim text.