Kone Corporation

Juha Panula

Juha-Matti Aitamurto

Ari Kattainen

Markku Haapaniemi

Antti Hovi

Matti Rasanen

Janne Mikkonen

Nithil Karimpanackal Natarajan

Jari Kantola

Jari Pursiainen

Tarvo Viita-aho

Henri Wenlin

Seppo Ketoviita

Niko Forsström

Ari Varelius

Sami Janhunen

Oskari Perälä

Mikko Ruuskanen

Matti RÄSÄNEN

Nithil Natarajan

A rope pulley of an elevator system is a free rotating pulley around which a hoisting rope of the elevator system can be guided. The free pulley is to be mounted to a car sling of an elevator car. The pulley includes an encoder for measuring the rotation movement of the pulley. The movement data are transmitted to a controller that converts the movement data into position data of the car in the hoistway, while further position data are gathered from identification markers that are installed in the hoistway. At least, the movement data of the rope pulley(s) are calibrated based on the position data from the identification markers. Thereby, the position of the car in the hoistway can be determined accurately and costly.

Elevator system with method of position detection of a car

The invention relates to an elevator safety arrangement comprising a hoistway; an elevator car mounted in the hoistway; a working platform mounted on top of the roof the elevator car; at least one sensing arrangement for sensing load of the working platform and at least one balustrade. Said balustrade is mounted on the working platform such that its weight is carried by the working platform, and in that it is movable between a substantially upright position and a substantially horizontal position.

Elevator safety arrangement configured to detect a load on a working platform and elevator

The invention relates to an elevator safety arrangement comprising a hoistway; an elevator car mounted in the hoistway; a working platform on top of the elevator car; at least one movable balustrade, which is movable between a substantially upright position and a substantially horizontal position; and a sensing arrangement for sensing position of the movable balustrade, said sensing arrangement for sensing position of the movable balustrade comprising at least one sensor for sensing position of the balustrade. Said at least one sensor for sensing position of the balustrade comprises a sensor body and a sensor head, and the sensor head is movable relative to the sensor body, and the balustrade is arranged to move the sensor head when pivoted, the balustrade comprising a cam member pivotal together with the balustrade, the cam member comprising one or more protrusions and depressions, and the sensor head is placed against the cam member for being actuated by aid of at least one protrusion and at least one depression of the cam member.

Elevator safety arrangement and elevator

The elevator system includes an elevator hoistway bounded by a surrounding structure, two or more entrances to the elevator hoistway, guide rails, which are fitted into the elevator hoistway and also an elevator car with door(s), which elevator car is configured to be movable in the elevator hoistway between the aforementioned entrances to the elevator hoistway along a vertical trajectory determined by the guide rails. Each entrance to the elevator hoistway may be bounded by a door frame, onto which a hoistway door is fitted. The door opening of the elevator car may be bounded by a door frame, onto which the car door is fitted. The elevator system includes for each entrance to the elevator hoistway a marking piece fixed immovably to the frame of the hoistway door, wherein the marking piece indicates the location in the elevator hoistway of the entrance to the elevator hoistway. The elevator system may also include a reader moving along with the elevator car, wherein the reader may be fixed immovably to a fixing point on the frame of the car door and may be configured to read the marking piece.

Elevator system and method for installing an elevator

A safety arrangement of an elevator includes a mechanical safety device () that ensures the safety of the elevator hoistway () and that can be moved into a use position (), and which safety arrangement of an elevator includes a detector () of intrusion into the elevator hoistway, which detector is fitted to receive measuring data () from the sensors () that determine the status of the entrances () of the elevator hoistway, and also to determine intrusion into the elevator hoistway () from the measuring data received, and after verifying an intrusion to switch into an operating mode () in which driving with the elevator is prevented.

Safety arrangements for elevators and methods for monitoring safety of elevator systems

Growing community of inventors

Hameenlinna, Finland

Juha Panula