Connection construction

1 .- 15 . (canceled)

16 . A connection construction ( 10 ) between a centrifuge rotor ( 12 ) and a drive shaft ( 14 ) of a centrifuge motor, the drive shaft ( 14 ) extending along a shaft axis (W), wherein

a first locking element ( 16 ) is arranged on one of the elements of the centrifuge rotor ( 12 ) and the drive shaft ( 14 ), and

a second locking element ( 48 ) is arranged on another of the elements of the centrifuge rotor ( 12 ) and the drive shaft ( 14 ),

wherein the first locking element ( 16 ) is engaged with the second locking element ( 48 ) in a locked state of the connection and is disengaged in an unlocked state,

wherein there is an actuating means ( 60 ) on one of the elements of centrifuge rotor ( 12 ) and drive shaft, an actuation of which causes the first locking element ( 16 ) to disengage from the second locking element ( 48 ), whereby the centrifuge rotor ( 12 ) is removable from the drive shaft ( 14 ).

17 . The connection construction ( 10 ) according to claim 16 ,

wherein the first locking element ( 16 ) is a lever having a lever arm which is movable in a plane parallel to the shaft axis (W).

18 . The connection construction ( 10 ) according to claim 17 ,

wherein the lever arm is movable in a plane that includes the shaft axis (W).

19 . The connection construction ( 10 ) according to claim 17 ,

wherein the lever ( 16 ), in an undeflected basic state, is arranged at an acute angle with respect to the shaft axis (W), and/or

wherein the connection construction ( 10 ) is adapted such that the lever ( 16 ) is deflectable, due to centrifugal forces, in a first operating state in which the centrifuge rotor ( 12 ) is rotating relative to a second operating state in which the centrifuge rotor ( 12 ) not rotating, wherein the deflection relative to the second operating state is in the range of 1° to 5°.

20 . The connection construction ( 10 ) according to claim 17 ,

wherein the lever ( 16 ) is arranged at a joint ( 32 ),

wherein the joint ( 32 ) is formed to be spring-loaded, and

wherein the joint ( 32 ) is effected by an elastic, spring-loaded design of the lever ( 16 ) itself.

21 . The connection construction ( 10 ) according to claim 16 ,

wherein the first locking element ( 16 ) has a foot ( 26 ) that stands ( 28 ) on the second locking element ( 48 ).

22 . The connection construction ( 10 ) according to claim 17 ,

wherein the first locking element ( 16 ) has at least one chamfer ( 30 ), which serves as a locking aid,

wherein the chamfer ( 30 ) lies parallel to a longitudinal extension of the lever ( 16 ).

23 . The connection construction ( 10 ) according to claim 16 ,

wherein the first locking element ( 16 ) is preloaded in a direction of engagement with the second locking element ( 48 ).

24 . The connection construction ( 10 ) according to claim 16 ,

wherein there are at least four first locking elements ( 16 ).

25 . The connection construction ( 10 ) according to claim 16 ,

wherein the first locking element ( 16 ) is arranged on the drive shaft ( 14 ).

26 . The connection construction ( 10 ) according to claim 16 ,

wherein the second locking element ( 48 ) is a projection on the centrifuge rotor ( 12 ), against which the first locking element ( 16 ) is supported in the locked state.

27 . The connection construction ( 10 ) according to claim 16 ,

wherein the actuating means ( 60 ) has a contact surface ( 72 ) for a mating contact surface ( 74 ) of the first locking element ( 16 ),

wherein one of the two surfaces of contact surface and mating contact surface ( 74 ) has an inclined course in the actuating direction (B) of the actuating means ( 60 ), at least in the locked state of the connection construction ( 10 ), in such a manner such that actuation of the actuating means ( 60 ) causes the first locking element ( 16 ) to pivot,

wherein the mating contact surface ( 74 ) runs in a manner inclined to the direction of the shaft axis (W) in the locked state.

28 . The connection construction ( 10 ) according to claim 16 ,

wherein the first locking element ( 16 ) and the second locking element ( 48 ) have contact surfaces ( 28 , 48 ) that, in the locked state of the connection construction ( 10 ), bear against one another and effect the locking,

wherein such contact surfaces ( 28 , 48 ) are inclined with respect to a radial surface about the shaft axis (W).

29 . The connection construction ( 10 ) according to claim 16 ,

wherein the actuating means ( 60 ) is formed as a push button ( 62 ) that is preloaded ( 68 ) against the actuating direction (B).

30 . The connection construction ( 10 ) according to claim 16 ,

wherein the actuating means ( 60 ) is arranged on the centrifuge rotor ( 12 ).

31 . The connection construction ( 10 ) according to claim 16 ,

wherein the connection construction ( 10 ) provides a snap-in connection ( 16 , 48 ),

wherein the locking takes place within a clip connection ( 16 , 48 ), which is designed to be releasable.

32 . A connection ( 10 ) between a centrifuge rotor ( 12 ) and a drive shaft ( 14 ), comprising:

a lever ( 16 ) arranged on the drive shaft ( 14 ), the lever having a lever arm which is movable in a plane that includes a shaft axis (W) of the drive shaft ( 14 );

a projection ( 48 ) formed on the centrifuge rotor ( 12 ), against which the lever ( 16 ) is supported in a locked state of the connection;

a push button ( 62 ) arranged on the centrifuge rotor ( 12 ) that is preloaded ( 68 ) against an actuating direction (B),

wherein the push button ( 62 ) has a contact surface ( 72 ) for a mating contact surface ( 74 ) of the lever, and

wherein an actuation of the push button ( 62 ) causes the lever ( 16 ) to disengage from the projection on the centrifuge rotor ( 12 ), so that the centrifuge rotor ( 12 ) can be removed from the drive shaft ( 14 ).