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US 5,605,208 AGranted
Rotary damper
AssigneeITW-ATECO GmbH
InventorsBernd Friedrichsen, Werner Janoschek
Life of this patent
Estimating the term…
Abstract
A rotary damper comprises a housing, a disc-shaped rotor which is supported within the housing so as to be rotatably and axially displaced in the housing, the rotor including an axially aligned annular friction surface which coacts with a coaxial annular friction surface inside the housing, and a spring within the housing which axially presses the rotor against the friction surface of the housing.
Claims20
A rotary damper, comprising:
- a housing having a substantially cup-shaped configuration comprising a closed end wall, an annular side wall, and an open end disposed opposite said closed end wall;
- friction means disposed within said housing upon said end wall;
- cover means mounted upon said housing for closing said open end of said housing;
- a rotor rotatably mounted within said housing and disposed in contact with said friction means for generating a friction damping force as said rotor rotates with respect to said housing and said friction means disposed within said housing;
- and
- spring means disposed within said housing so as to be interposed between and in contact with said cover means and said rotor for biasing said rotor into contact with said friction means.
3 more elements
A rotary damper, comprising:
- a housing a closed end wall and an open end disposed opposite said closed end wall;
- a rotor, having a surface portion thereof disposed toward said closed end wall of said housing, rotatably mounted within said housing;
- cover means mounted upon said housing for closing said open end of said housing;
- friction means interposed between said closed end wall of said housing and said surface portion of said rotor, disposed toward said closed end wall of said housing, for impressing frictional damping forces upon said rotor as said rotor rotates relative to said housing;
- and
- spring means disposed within said housing so as to be interposed between and in contact with said cover means and said rotor for biasing said rotor toward said closed end wall of said housing so as to develop frictional damping forces upon said rotor by said friction means as said rotor rotates with respect to said housing.
3 more elements
A rotary damper, comprising:
- a housing having a closed end wall and an open end disposed opposite said closed end wall;
- a rotor, having a surface portion thereof disposed toward said closed end wall of said housing, rotatably mounted within said housing;
- cover means mounted upon said housing for closing said open end of said housing;
- friction means fixedly disposed upon one of said closed end wall of said housing and said surportion of said rotor, disposed toward said closed end wall of said housing, for developing frictional damping forces between said rotor and said housing as said rotor rotates relative to said housing;
- and
- spring means disposed within said housing so as to be interposed between and in contact with said cover means and said rotor for biasing said surface portion of said rotor toward said closed end wall of said housing such that said friction means, disposed upon said one of said closed end wall of said housing and said surface portion of said rotor, will develop said frictional damping forces upon said rotor as said friction means engages the other one of said closed end wall of said housing and said surface portion of said rotor as said rotor rotates relative to said housing.
3 more elements
Dependencies are inferred from the claim text.