Kone Corporation

Pekka Torenius

Esko Aulanko

Raimo K Pelto-Huikko

Sakari Korvenranta

Jarmo Myllynen

Pekka Perälä

Seppo Suur-Askola

Riitta Partanen-Jokela

The object of the invention is a traction sheave elevator and a rope that contains metal as a load-bearing material, such as the suspension rope of an elevator, which rope comprises at least one or more strands laid from metal wires and which rope is lubricated with a lubricant. Another object is the use of the aforementioned lubricant for lubricating the rope. The lubricant comprises at least oil and thickener, which thickener in the lubricant comprises at least 10% or more of the mass of the lubricant.

Metal rope and lubricant

Metal rope, elevator provided with metal rope, and use of lubricant for lubricating the metal rope

The object of the invention is a traction sheave elevator and a rope () that contains metal as a load-bearing material, such as the suspension rope of an elevator, which rope comprises at least one or more strands () laid from metal wires () and which rope () is lubricated with a lubricant (). Another object is the use of the aforementioned lubricant for lubricating the rope (). The lubricant () comprises at least oil and thickener, which thickener in the lubricant () comprises at least 10% or more of the mass of the lubricant ().

The invention relates to a method for monitoring the condition of the door of an elevator and determining its need for maintenance, the door comprising a door mechanism, door panels and a door operator. The signals () of the control system of a door in good condition are measured and a set of characteristics descriptive of the operation of the door is generated from them. The signals () of the door control system are measured the operation during the opening and closing movements of the door is divided into stages according to which parts of the door are functioning at each stage. From the measured signals (), a set of characteristics descriptive of the operation of the door is generated. The set of characteristics thus generated is compared to the set of characteristics for a normal operating condition stored in memory, at least in one stage of operation. Based on the comparison of the two sets of characteristics, a diagnosis is performed to determine where and how the operation of the door and its components deviates from normal operation, and the result of the diagnosis is utilized to establish the need for servicing and a servicing date.

Method for monitoring the door mechanism of an elevator

Growing community of inventors

Röykkä, Finland

Pekka Torenius