Patent ID: 7611089

Claim:
A spool for receiving wound skein material with a rotationally symmetrical conical spool body provided with a detachable flange disc at an end thereof with the smaller diameter, comprising: ring surfaces on facing surfaces of the flange disc and spool body, locking projections extending from the ring surface of at least one of the flange disc and spool body in a direction of the other ring surface, detent recesses to receive the locking projections in the ring surface of at least one of the flange disc and spool body, wherein the locking projections and detent recesses can be locked in the manner of a bayonet catch by mutually rotating the spool body and the flange disc, spring-loaded tongues aligned with the detent recesses and which engage behind the locking projections in a connected position of the flange disc and spool body, so as to prevent the flange disc and spool body from untwisting, and displaceable pressure elements which press the spring-loaded tongues in one of the positions occupied by the pressure elements out of their engagement with the locking projections, and the pressure elements are formed on a ring which can be rotated around a rear face of the ring surfaces of parts of the spool.