Arrangement for releasably mounting of a hub or a wheel on a shaft

Claim 2

Arrangement as claimed in claim 1 in which the piston is threaded and cooperates with threads in the sleeve recess, whereby the piston may be screwed into the sleeve recess.

Claim 3

Arrangement as claimed in claim 3 in which the piston is a collar piston having inner threads and the inner wall of the sleeve has corresponding outer threads.

Claim 4

Arrangement as claimed in claim 4 in which the inner wall of the sleeve recess extends axially outside the outer wall of the sleeve recess.

Claim 5

Arrangement for releasably mounting a wheel or the like on a shaft, the arrangement comprising, a sleeve having double walled sidewalls adapted to be located between the wheel and shaft forming a recess between the sleeve double sidewalls, said sleeve being closed at one end, an elastic pressure medium enclosed in the recess, the radial dimension of the double walled sidewalls being variable by changing the pressure on the pressure medium in said recess, a collar piston displaceably mounted in the recess resting against the pressure medium to act thereon for changing the pressure thereagainst, means, including the double walled sidewalls of the sleeve and piston being directly connected to each other, an annular ring disposed about the sleeve engaging the piston, the piston being forceable into the recess by movement of the ring towards the open end of the slEeve, the outer wall of the sleeve having a radially outwardly extending collar with a plurality of fastener-receiving means, and a plurality of fasteners passing through the ring and into the fastener-receiving means for tightening the ring against the piston and apply an axial force thereagainst, whereby application of said axial force upon the piston operates against the pressure medium and is reacted by a reaction force extending only through the sleeve.

Claim 6

Arrangement as claimed in claim 6 in which said collar piston and annular ring are formed as one integral pressure element.

Claim 7

Arrangement as claimed in claim 6 in which said fastener-receiving means are threaded holes and said fasteners are screws.

Claim 8

Arrangement as claimed in claim 6 in which the collar piston is freely movable axially in the sleeve recess and may be pressed against the pressure medium by tightening at least three fasteners symmetrically disposed about the circumference of the ring.

Claim 9

Arrangement as claimed in claim 6 in which the recess has two annular shoulders provided therein spaced from the closed end thereof, one shoulder being provided in the outer wall of the recess and the other shoulder being provided in the inner wall thereof, a washer disposed in the recess resting against the shoulders, the pressure medium being disposed between the washer and the piston such that movement of the piston into the recess forces the pressure medium against the washer.