A positioning aid positions a nut on a guide rail of an elevator system, the guide rail being formed as a hollow rail, the hollow rail having a plurality of elongated holes arranged one behind the other in the longitudinal direction of the hollow rail in order to be fastened to a guide rail holder. The positioning aid includes an elongate fastening portion to which at least one nut is fastened and which is dimensioned such that it can be passed through one of the elongated holes together with the at least one nut and moved within the hollow rail. The positioning aid also includes a holding portion for holding the fastening portion, the holding portion being fastened to one end of the fastening portion and being configured to be wider than the elongated hole.

A system and method for adjustably positioning elevator guide rail. The system includes: an adjustment device arranged on a moving platform and having a clamping portion and a powering portion, the clamping portion being arranged to be capable of clamping an elevator guide rail to be installed through a power output from the powering portion and moving in a first, a second and/or a third directions, and the moving platform being capable of moving up and down in the first direction; a detection device arranged to detect current movement characteristics of the clamping portion when the elevator guide rail is not clamped or has been clamped by the clamping portion; and a control device connected to the detection device and the adjustment device, and arranged to adjust the position of the clamping portion in place by controlling the powering portion according to the movement characteristics.

An elevator system includes guide rails located in an elevator hoistway and a running device adapted to reciprocate along the guide rails, and the guide rails are tensioned guide ropes.

An elevator system includes guide rails located in an elevator hoistway and a running device adapted to reciprocate along the guide rails, and the guide rails are tensioned guide ropes.

A method for forming a guide structure in an elevator shaft provides a guide structure configured to guide an elevator car during vertical travel in the elevator shaft. The method includes the following steps: moving a tool, such as a milling tool, vertically along the elevator shaft, wherein the tool is precisely positioned with respect to the horizontal position thereof within the elevator shaft, and forming the guide structure by removing material on a shaft wall of the elevator shaft using the tool.

An elevator system (2) comprising a hoistway (4), an elevator car (6) and a counterweight (8) arranged to move within the hoistway (4). The system (2) further includes a first counterweight guide rail and a second counterweight guide rail arranged to guide the counterweight within the hoistway (4) and a guide rail bracket (32) which connects the first and second counterweight guide rails together. An elevator machine (10) is arranged to drive a tension member (14), which couples the elevator car (6) and counterweight together (8), to move the elevator car (6) within the hoistway (4). The system (2) further includes a friction reducing element (36) arranged on the guide rail bracket (32) such that if the tension member (14) moves towards the guide rail bracket (32) during operation of the elevator system (2), the tension member (14) contacts the friction reducing element (36).

A rail installation assist device includes at least control circuitry. The control circuitry is configured to acquire displacement information representing displacement of individual rail brackets and a rail joint from a reference position, the rail brackets that fix guide rails in an elevator shaft, the rail joint that joins the guide rails together; estimate, from the displacement information, a change in the displacement information of the rail brackets and the rail joint when the rail brackets are moved to given target positions; calculate an evaluation value for variation in the displacement information before the change and an evaluation value for variation in the displacement information after the change; and set positions of the rail brackets based on a result of comparison between the evaluation values.

A rail foot holder used in a method to fasten a rail of an elevator system in an elevator shaft has a contact body arranged in the elevator shaft in a stationary manner, at least one clamping part, and at least one intermediate part. The contact body defines a contact plane for a rail foot of the rail. The clamping part is connected to the contact body. The intermediate part is arranged between the clamping part and the contact body. When fastening the rail, a holding dimension between the clamping part and the contact plane can be set or changed for adaptation to the rail foot. The intermediate part has a fixed intermediate part height which, together with a clamping part height of the clamping part, determines the holding dimension.

A rail fastening system fastens a rail of a vertically movable elevator system car has a first clamp connected to a holding structure, and a second clamp connected to the rail. The first clamp has a laterally extending first central part connectable to the holding structure and the second clamp has a laterally extending second central part connectable to the rail. Each clamp has two tabs attached in the lateral direction at opposite ends of the respective central part. A first tab of the first clamp can be connected to one of tabs of the second clamp on a first contact surface, and a second tab of the first clamp can be connected to the other of the tabs of the second clamp on a second contact surface. A first plane runs through the first contact surface and intersects with a second plane that runs through the second contact surface.

A guide rail-pillar system is disclosed. The system includes at least one guide rail pillar to guide an actuation of a cabin of a pneumatic vacuum elevator, wherein the at least one guide rail pillar is disposed at an external cylinder assembly. The at least one guide rail pillar includes a first surface. A curved structure is extruded from a first surface of the at least one guide rail pillar, wherein the curved structure enables movement of the cabin in a vertical direction. The at least one guide rail pillar includes at least two grooves disposed on lateral sides. The at least two grooves accommodates a covering sheet for enclosing the external cylinder assembly. The at least one guide rail pillar includes at least three ribs. The at least three ribs connects the at least one guide rail pillar with a base ring and the external cylinder assembly.