A device to permit insertion of bodies (1) profiled in an insertion direction (10), with different dimensions under automatic tight contact against the profiled surfaces (2) of the bodies (1). The device is provided with an appropriate number of fingers (3a, 3b, etc.), which in one end (3a1), etc. are pivotably attached largely in the insertion direction (10) and localized essentially uniformely distributed around a circle (6) and which are spring-tensioned (4) against the insertion direction (10) and which are aligned essentially in towards the center of the said circle (6) and in that the pivotability of the said fingers (3a, 3b, etc.) is limited by a stop device (5) to permit turning by means of the spring-tension (4) of the fingers (3a, 3b, etc.) towards the insertion direction (10) maximum largely to in the vicinity of the center of the said circle (6).
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