supporting deflecting roller which is concealed by a supporting deflecting roller 23 l thus also at this side of the elevator car mention can be made of a first point 41 e of engagement of the support means 3 d with the elevator car 2 and a second point 41 f of engagement of the support means 3 d with the elevator car 2 optionally in addition to the monitoring devices 16 i and 16 j the not visible supporting deflecting rollers and or the supporting deflecting rollers 23 k and 23 l can have monitoring devices which correspond with the monitoring devices 16 c 16 f of fig2 to 4 as in fig5 also for avoidance of detection of the maximum unwinding of the support means 3 c and 3 d as slackening in the case of disturbance counter rollers 37 e 37 h are arranged as illustrated in the case of use of a flat belt or a profiled belt for example a wedge ribbed belt as support means 3 c or 3 d the narrow or profiled sides of the support means 3 c or 3 d can represent an unfavorable guide surface for the counter rollers 37 e 37 h and the deflecting rollers.