Kone Corporation

Joni Kiiski

Jari Österman

Seppo Suur-Askola

Simo Mäkimattila

Jarmo Myllynen

Jukka Korpela

Jussi Paasisalo

Jani Nieminen

Jukka Penttilä

Jarmo Jarmo Myllynen

Diverting pulley arrangement, more particularly a diverting pulley arrangement of an elevator, which arrangement includes an axle, at least one diverting pulley that rotates while supported on the axle, a faceplate structure, in relation to which and supported by which the diverting pulley is arranged to rotate on the first side of the faceplate structure, which axle is locked so that it does not rotate by the aid of a locking element that moves in relation to the faceplate structure, which locking element is on the second side of the faceplate structure. When it starts to rotate, the end of the axle forces the locking element to displace out of its position and to trip a safety switch.

Diverting pulley arrangement, elevator, and method

In the invention a method is presented for ensuring operating safety in an elevator system, an elevator system, and a safety device of an elevator system. The elevator system includes at least an elevator car, elevator ropes, an elevator motor, a traction sheave and at least two holding brakes, which holding brakes are arranged to prevent movement of the elevator car when the elevator is stopped. According to the invention the first holding brake is engaged at the end of an elevator run, and the other holding brakes are engaged with a delay. When one holding brake is engaged, the state of motion of the elevator and any slipping of the brake is monitored. If the brake is detected as slipping, a procedure for preventing a hazardous situation is performed.

Elevator brake management system

Growing community of inventors

Klaukkala, Finland

Joni Kiiski