Abstract: Separable parts of a sports shoe are movable toward and away from one another by means of a traction cable which can be wound on and off a cable pulley which is rotatably mounted in a housing, has an engaging projection, and cooperates with a stationary stop and with a stop construction which is rotatably mounted coaxially with the pulley. The stop construction has two rotatable stop arms which enable up to almost three turns of the cable pulley between extreme positions. In this way the rotary closure is on the one hand constructed for a relatively large adjustment of length and on the other hand is secured against overstreching of the traction cable.