Arrangement for adjusting the tautness of a traction member of an elevator

Arrangement for adjusting the tautness of a traction member of an elevator, which arrangement comprises at least an elevator car adapted to move reciprocally in an elevator hoistway and at least one compensating weight, which are for their part connected to support the elevator car by means of at least one suspension member, such as a rope or belt, and also a hoisting machine provided with at least one traction sheave or corresponding, and at least one traction member such as a belt, rope or chain, which is adapted to transmit the rotational movement of the traction sheave into movement of the elevator car and of the compensating weight, and also a tension control means, to which the suspension member and traction member are connected, and which tension control means is arranged to adjust the magnitude of the tension forces exerted on the suspension member and on the traction member, wherein the arrangement additionally comprises a tensioning means connected to the traction member, and in that the tension control means is connected to that part of the traction member that is on the side of the compensating weight with respect to the traction sheave, and the tensioning means is connected to that part of the traction member that is on the side of the elevator car with respect to the traction sheave.