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

An arrangement to adjust a tautness of a traction member of an elevator, the arrangement comprising:

• an elevator car adapted to move reciprocally in an elevator hoistway;
• and
• a compensating weight connected to the elevator car via at least one suspension member to support the elevator car;
• a hoisting machine including at least one traction sheave and at least one traction member configured to transmit rotational movement of the traction sheave into movement of the elevator car and of the compensating weight, the traction member including a first end and a second end, the traction member being wound about the traction sheave such that one portion of the traction member is on a side of the elevator car with respect to the at least one traction sheave;
• a tension control device connected to the suspension member and the traction member, the tension control device configured to adjust a magnitude of tension forces exerted on the suspension member and on the traction member when the tension forces are within an operating range, the suspension member includes a first end and a second end;
• and
• a tensioning device connected between the elevator car and the first end of the traction member such that the tensioning device is connected to only the one portion of the traction member on the side of the elevator car with respect to the at least one traction sheave and adjusts the tautness of the traction member to increase the operating range of the tension control device.