Disengaging unit for drawing disengageable friction clutches, especially for motor vehicles

In a disengaging unit for a drawingly disengageable friction clutch having a disengaging member linkable to respective disengaging means of the friction clutch, and further having an anti-friction bearing with a revolving race revolvable together with the disengaging means of the friction clutch, and a nonrevolving race rigid with a hollow guide member of the disengaging unit, the disengaging member being axially slidably shiftable by means of the inner bore of the guide member along a guide tube disposed at a transmission side of the disengaging member, the improvement comprising at least two ring-shaped sliding regions formed on said guide member and being axially spaced from one another and mutually separated by a hollow chamber, one of said sliding region facing toward the clutch side of the disengaging member, and the other of said sliding regions toward the transmission side of the disengaging member, at least one of said guide member and said guide tube being formed with a capture inclination for securing the other of said guide member and said guide tube therewith, the capture inclination of said guide tube being formed by a tapering contour narrowing in direction toward the clutch side of the disengaging member at an end region of said guide tube facing toward the clutch side of the disengaging member, the capture inclination of said guide member being formed by a funnel-shaped contour flaring outwardly in direction toward the transmission side of the disengaging member at an end region of said guide member facing toward the transmission side of the disengaging member, the sliding region of said guide member which faces toward the transmission side of the disengaging member having a diameter and a contour which, together with the mutual axial spacing of both sliding regions of said guide member and the construction of said hollow chamber between said sliding regions as well as the respective capture inclination are coordinated so that the disengaging member linkable to the disengaging means of the clutch and said guide tube connectible to the transmission are swingable relative to one another about the sliding region of said guide member facing toward the transmission side of the disengaging member, when the free end of said guide tube is received in vicinity of said hollow chamber of said guide member.