US 9,809,394 B2
Torque-limiting return stop device
Karlheinz Timtner, Bad Homburg (DE)
Assigned to RINGSPANN GmbH, Bad Homburg (DE)
Filed by RINGSPANN GmbH, Bad Homburg (DE)
Filed on Mar. 2, 2015, as Appl. No. 14/635,216.
Claims priority of application No. 10 2014 204 174 (DE), filed on Mar. 7, 2014.
Prior Publication US 2015/0251856 A1, Sep. 10, 2015
Int. Cl. F16D 41/04 (2006.01); B65G 43/06 (2006.01); B65G 23/26 (2006.01); F16D 7/02 (2006.01); F16D 41/06 (2006.01)
CPC B65G 43/06 (2013.01) [B65G 23/26 (2013.01); F16D 7/025 (2013.01); F16D 41/06 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A torque-limiting return stop arrangement, comprising
an internal ring (2),
an external ring (3) concentric in reference to the internal ring,
retaining elements (4) arranged in an annular gap between the internal and the external ring, to permit a relative rotation between the internal and the external ring (2, 3) in one direction and block rotation in the other direction in a form or friction-fitting fashion,
a flange (5) at an attachment side and a housing part (6) adapted to clamp the external ring (3) therebetween,
a clamping device (8, 9a, 9b) acting in an axial direction, which applies a compression force, by which the external ring (3) is pressed with a face thereof against at least one friction area between the flange (5) and the housing part (6) in order to generate a friction-fitting connection between the flange (5) and the external ring (3),
at least one release device (10, 11, 12) that at least partially overcomes a contact pressure of the clamping device (8, 9a, 9b) in order to reduce or release the friction-fitting connection,
the at least one release device comprises an actuating organ (10), which acts upon a first gliding element (11) displaceable in an operating direction, such that the first gliding element (11) acts via a first wedge area (13) upon at least one second gliding element (12), which is arranged displaceable generally perpendicular in reference to an operating direction, and the second gliding element (12) acts via a second wedge area (14) upon the housing part (6) opposite the compression force.