US 5,401,008 AGranted

Controllable motor bearing

AssigneeFirma Carl Freudenberg

InventorsGerold Winkler, Gerd-Heinz Ticks, Ludwig Schmitt

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Abstract

A controllable motor bearing consisting of a journal bearing and a support which are connected parallel to one another by means of a first and a second spring element made of rubber. One of the spring elements can be locked in place by an auxiliary mechanism, if necessary. The first spring element is structured in the form of a ring, and has an inside diameter which is larger than the outside diameter of the second spring element. The first spring element overlaps the second spring element at least partially in the axial direction. The auxiliary mechanism consists of a support element which at least partially surrounds the second spring element at a radial distance. The second spring element has a recess which has an expanse and position in the axial direction which cooperates with the support element. A fluid medium can be fed into the recess. The second spring element can be expanded in the area of the recess, as a function of the pressure of the fluid medium, and can be placed against the support element so as not to move.

Claims11

Dependent claims

A controllable bearing comprising:

a bearing member;
a support member;
first and second spring elements, both said first and second spring elements connecting said bearing member and said support member parallel to one another, said first spring element being annular and having an inner diameter which is larger than an outer diameter of said second spring element to define therebetween an annular space, said second spring element having a recess whereby a fluid medium can be fed into said recess;
and
a support element, said support element having a portion surrounding said second spring element in an axial area corresponding to said recess;
whereby said second spring element expands when said fluid medium is fed into said recess such that a portion of said outer diameter of said second spring element contacts said support element, and whereby both said first and second spring elements provide a force in response to relative displacement between said bearing member and said support member, said force provided by said second spring element being provided even when said fluid medium is not within said recess.

3 more elements

Dependencies are inferred from the claim text.