A method for installing a component of an elevator system having an elevator shaft involves the steps of: mounting a positioning frame in the elevator shaft in relation to a wall of the elevator shaft; attaching a guide line in the elevator shaft separately from the positioning frame; aligning the guide line using the positioning frame; and aligning the component using the aligned guide line. A device for carrying out the method includes the guide line, the positioning frame having positioning aids for the guide line and an adjustable fastener for attaching the guide line in the elevator shaft.

A method for installing a component of an elevator system having an elevator shaft involves the steps of: mounting a positioning frame in the elevator shaft in relation to a wall of the elevator shaft; attaching a guide line in the elevator shaft separately from the positioning frame; aligning the guide line using the positioning frame; and aligning the component using the aligned guide line. A device for carrying out the method includes the guide line, the positioning frame having positioning aids for the guide line and an adjustable fastener for attaching the guide line in the elevator shaft.

The present invention is directed to a building profile including a pair of support legs, a cross member for removably fastening to the pair of support legs and from which a line can extend; a marker stand for engaging with the line, wherein the marker stand includes a point position marker for marking a position on the ground, a support for supporting the point position marker and an upright indicator for indicating whether the point position marker is in an upright position.

The present invention is directed to a building profile including a pair of support legs, a cross member for removably fastening to the pair of support legs and from which a line can extend; a marker stand for engaging with the line, wherein the marker stand includes a point position marker for marking a position on the ground, a support for supporting the point position marker and an upright indicator for indicating whether the point position marker is in an upright position.

A building surveying device comprising a base, an upper part supported on the base such that it can rotate about a rotation axis, a sighting unit with a laser source designed for emitting a laser beam, and a laser light detector and an evaluation and control unit. The building surveying device has a plumb point finding functionality which, after being triggered, runs automatically, at least in part, and in the course of which the alignment of the sighting unit is changed under automatic control by the evaluation and control unit with the aid of the first and/or the second rotary drive and as a function of a known, defined first spatial point in such a way that precisely one such second spatial point lying on an object surface is approached and marked by the laser beam, which lies on a vertical plumb line containing the first spatial point.

A leveling device coupler assembly that includes a coupling head and a joint assembly coupled to the coupling head. The joint assembly can include a first and second rotatable coupling. The leveling device coupler assembly can also include a base coupler coupled to the joint assembly, with the base coupler and coupling head being coupled on opposing ends of the joint assembly. The leveling device coupler assembly can also include an electronic coupler assembly leveling device configured to at least detect a configuration status of the leveling device coupler assembly.

A leveling device coupler assembly that includes a coupling head and a joint assembly coupled to the coupling head. The joint assembly can include a first and second rotatable coupling. The leveling device coupler assembly can also include a base coupler coupled to the joint assembly, with the base coupler and coupling head being coupled on opposing ends of the joint assembly. The leveling device coupler assembly can also include an electronic coupler assembly leveling device configured to at least detect a configuration status of the leveling device coupler assembly.

A top mounted column placement element includes a plumb bob hanging element to allow a plumb bob to hang from the top mounted column placement element and identify a corresponding portion of a bottom mounted column placement element. The top mounted column placement element defines a column perimeter. The bottom mounted column placement element also defines a column perimeter. Once the top mounted column placement portion and bottom mounted column placement element are in place, the column can be placed and set to conform to both defined column perimeters, ensuring the column is properly positioned.

A top mounted column placement element includes a plumb bob hanging element to allow a plumb bob to hang from the top mounted column placement element and identify a corresponding portion of a bottom mounted column placement element. The top mounted column placement element defines a column perimeter. The bottom mounted column placement element also defines a column perimeter. Once the top mounted column placement portion and bottom mounted column placement element are in place, the column can be placed and set to conform to both defined column perimeters, ensuring the column is properly positioned.

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.