Patent ID: 7582019

Claim:
Overload safety coupling, which bridges a first, toothed spindle section ( 1 ) and a second spindle section ( 6 ), comprising: a rotating-and-sliding sleeve ( 3 ), which has internal toothing at a first end to hold the first spindle section ( 1 ) in a way that allows axial displacement; an inner sleeve ( 4 ) permanently seated on the second spindle section ( 6 ), the inner sleeve ( 4 ) being held at a second end of the sleeve ( 3 ) in a rear sleeve-like extension ( 13 ); and a pressure sleeve ( 5 ) and a fluid pressurized gap ( 14 ) pretensioned to produce a nonrotatable connection between the rear sleeve-like extension ( 13 ) and the inner sleeve ( 4 ), which frictional connection gives way in the event of an overload.