Kone Corporation

Pekka Kilpeläinen

Mikael Haag

Giovanni Hawkins

Tapio Vaarala

Alejandro Revuelta Fernandez

Leif Køll

Leif Kall

An arrangement for aligning guide rails includes an installation platform arranged to be movable in the first direction upwards and downwards in an elevator shaft, said installation platform being provided with an apparatus for aligning guide rails. At least two laser transmitters are arranged at predetermined positions in the shaft below the installation platform, each of said at least two laser transmitters transmitting an upwards directed laser beam that forms a plumb line in the elevator shaft. At least two first position sensitive detectors are attached to the installation platform and/or to the apparatus for aligning guide rails and/or to the guide rails, each of said at least two first position sensitive detectors receiving a respective laser beam, whereby the position of the guide rails in relation to the shaft can be determined indirectly or directly.

Arrangement and method for aligning guide rails in an elevator shaft

An arrangement includes an installation platform arranged to be movable upwards and downwards in a first direction in the elevator shaft, and two laser transmitters arranged at a bottom of the elevator shaft. Each of the two laser transmitters produce a vertical upwards directed laser plane in the elevator shaft, the laser planes being perpendicular to each other. At least four primary light sensitive detectors are attached to the installation platform so that they are visible to the laser transmitters, each of the primary light sensitive detectors being positioned on a respective side of a rectangle. The position of the installation platform in relation to the elevator shaft can be measured from the hitting points of the laser planes on the primary light sensitive detectors.

Measuring the position of an installation platform in an elevator shaft using laser transmitters and light detectors

The invention relates to an elevator guide rail straightness measuring system, for measuring the straightness of elevator guide rails, which measuring system comprises at least one plumb line mounted vertically in the runway adjacent to the guide rail and at least one sensor arrangement to be mounted on a carrier to travel vertically along the guide rail, which sensor arrangement comprises a frame, at least one guide shoe connected to the frame for sliding/rolling along a guide surface of the guide rail, a bias means for placing and biasing the frame against the guide surface, and at least one sensor means for sensing the position of the plumb line with respect to the frame, such elevator system allows easy and exact measurement of the guide rail straightness. The invention also relates to an elevator having such a system.

Guide rail straightness measuring system for elevator installations

The apparatus includes a stationary part being attachable to an elevator guide rail element at a predetermined height above a joint between two consecutive end-on-end mounted elevator guide rail elements. An elongated measuring frame having an upper end and a lower end is supported from the upper end with an articulated joint at the stationary part. A number of inductive sensors are positioned on the measuring frame, whereby at least a part of the inductive sensors are directed in a first direction being the direction between the guide rails towards a tip of the guide rail elements, said part being further divided into two sub parts so that a first sub part of the inductive sensors is directed towards the upper elevator guide rail element and the rest are directed towards the lower elevator guide rail element. The apparatus further includes a connection board for the inductive sensors, a visualization device, electronics, and a power source.

Apparatus and method for alignment of elevator guide rails

A method and arrangement for automatic elevator installation includes marking each door opening in the elevator shaft with door reflectors, and creating a reference coordinate system of the elevator shaft with a robotic total station positioned at a bottom of the elevator shaft, measuring the position of the door reflectors with the robotic total station, fitting straight door lines to the measurements in order to form virtual plumb lines for the doors in the elevator shaft, marking predetermined guide rail positions on the bottom of the elevator shaft and installing lowermost guide rails manually to the shaft based on the guide rail positions, forming vertical guide rail lines, i.e. virtual plumb lines for the guide rails with the robotic total station based on the door lines, providing an upwards and downwards movable installation platform in the elevator shaft provided with platform reflectors, and measuring the position of the platform reflectors with the robotic total station, whereby the orientation and the position of the installation platform in relation to the elevator shaft can be determined.

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Oulu, Finland

Pekka Kilpeläinen