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An attachment device for arresting a machine member having a substantially cylindrical bore on a cylindrical shaft includes first and second sleeve members adapted to be positioned in a space between the outer surface of the shaft and the inner surface of the bore in the machine member. The two slee

An attachment device for arresting a machine member having a substantially cylindrical bore on a cylindrical shaft includes first and second sleeve members adapted to be positioned in a space between the outer surface of the shaft and the inner surface of the bore in the machine member. The two sleeve members have mating, cooperating taper surfaces in the form of a plurality of saw-tooth-shaped axially tapering sections that face one another. At least one of the sleeve members is movable for displacement relative to the other sleeve member to change the radial size of at least one of the sleeve members. The end edge of the first sleeve member projects axially beyond an adjacent end edge of the second sleeve member for receiving an external pushing force causing the first element to be displaced relative to the second element to cause the relative displacement of the sleeve members. The opposite end edge of the second sleeve members engages a stop that may be formed on the machine member.

대표청구항 ▼

1. An arrangement comprising a machine member having a substantially cylindrical bore mounted on a substantially cylindrical shaft, and a stop provided on the machine member, the bore having an inner diameter that is larger than an outer diameter of the shaft so that an annular space exists between

1. An arrangement comprising a machine member having a substantially cylindrical bore mounted on a substantially cylindrical shaft, and a stop provided on the machine member, the bore having an inner diameter that is larger than an outer diameter of the shaft so that an annular space exists between the machine member and the shaft, a pair of elements positioned in the space and having mating, cooperating taper surfaces facing each other, at least one of said elements being movable for displacement relative to the other element to change a radial size of at least one of the elements and thereby increase or reduce a clamping force between the machine member and the shaft, the pair of elements including a first thin-walled sleeve member enclosing a portion of the shaft and having an outer surface and a smooth inner surface, and a second thin-walled sleeve member engaging the bore of the machine member and having an inner surface and a smooth outer surface, the second sleeve member enclosing the first sleeve member, the outer surface of the first sleeve member and the inner surface of the second sleeve member having a plurality of saw-tooth-shaped axially tapering sections, the first sleeve member having first and second end edges and the second sleeve having first and second end edges, the second end edge of the first sleeve member projecting outside the second end edge of the second sleeve member for receiving an external pushing force causing the at least one element to be displaced relative to the other element in a direction to cause said displacement while the first end edge of the second sleeve member which is located at one axial end of the second sleeve member abuts against the stop to prevent displacement of the second sleeve member in said direction.