Patent ID: 6986508

Claim:
A spring holding cone for holding a spring end of a spiral torsion spring having a plurality of spring turns and a torque transfer leg projecting in a radial direction from the torsion spring, the spring holding cone comprising: an outside surface for supporting the spring end of the torsion spring at its inside diameter, the outside surface having a circumference, and fixing means for fixing the spring end to the spring holding cone in a torque resistant way, the fixing means comprising a flank, the flank protruding from the outside surface, extending over less than 180° of the circumference of the outside surface, thus leaving a flank-free area of the outside surface, and being arranged and intended for engaging between spring turns of the spring end of the torsion spring, a securing element extending above the flank-free area of the outside surface, the securing element having at least one recess for holding the torque transfer leg of the spring end, the recess being limited in at least one circumferential direction around the outside surface by a stopping face for the torque transfer leg, and a locking element which is detachably attached to the securing element so that it closes the recess in the circumferential direction opposite to the stopping face.