The installation platform comprises two decks and a support frame comprising horizontal support beams supporting a respective deck and vertical support beams. The installation platform has a width in a first horizontal direction between the guide rails, a depth in a second horizontal direction perpendicular to the first horizontal direction. The installation platform is guided movably via guide means on the guide rails. At least one of the width and the depth of the installation is adjustable in order to adjust the horizontal dimensions of the installation platform according to the horizontal dimensions of the shaft.

The installation platform comprises two decks and a support frame comprising horizontal support beams supporting a respective deck and vertical support beams. The installation platform has a width in a first horizontal direction between the guide rails, a depth in a second horizontal direction perpendicular to the first horizontal direction. The installation platform is guided movably via guide means on the guide rails. At least one of the width and the depth of the installation is adjustable in order to adjust the horizontal dimensions of the installation platform according to the horizontal dimensions of the shaft.

The apparatus comprises a frame, a first pair of actuators and a second pair of actuators being positioned on opposite sides of the frame, each actuator comprising a support arm being movable in a second direction, each actuator being supported on the frame with a support mechanism being movable in a third direction perpendicular to the second direction, first gripping means being supported on a first side of the frame and second gripping means being supported on a second opposite side of the frame, measuring means being attached to opposite sides of the frame in the vicinity of the first gripping means and the second gripping means, said measuring means being used to determine the position of the apparatus in the elevator shaft, whereby opposite car guide rails can be adjusted in relation to each other and in relation to the elevator shaft with the alignment apparatus.

An elevator shaft element, an elevator arrangement and a method of a construction time use elevator. The elevator shaft element comprises a frame module arranged for receiving an elevator car therein. The frame module is constructed from a transport and/or storage unit, comprising side walls, a bottom wall and a roof wall. The unit is arrangeable vertically such that said side walls, bottom wall and upper wall of the unit define an inner space of the elevator shaft. The side wall, the bottom wall or the upper wall of the transport and/or storage unit is opened at a length more than a floor height of a building for providing an opening for one or more landing doors, the opening having a first side-edge and a second side-edge parallel to longitudinal direction of the transport and/or storage unit. The elevator shaft element further comprises at least one stiffening beam arranged to be fixed to the opening and extending from the first side-edge to the second side-edge.

An elevator shaft element, an elevator arrangement and a method of a construction time use elevator. The elevator shaft element comprises a frame module arranged for receiving an elevator car therein. The frame module is constructed from a transport and/or storage unit, comprising side walls, a bottom wall and a roof wall. The unit is arrangeable vertically such that said side walls, bottom wall and upper wall of the unit define an inner space of the elevator shaft. The side wall, the bottom wall or the upper wall of the transport and/or storage unit is opened at a length more than a floor height of a building for providing an opening for one or more landing doors, the opening having a first side-edge and a second side-edge parallel to longitudinal direction of the transport and/or storage unit. The elevator shaft element further comprises at least one stiffening beam arranged to be fixed to the opening and extending from the first side-edge to the second side-edge.

The invention relates to an elevator system (10) for a building under construction, comprising a vertical shaft (12), in which a temporary machine compartment (14) is retained, a driving device (18), which is arranged in the temporary machine compartment (14) and which is coupled by means of a supporting cable (21) to a car (23) that can be moved vertically up and down in the shaft (12), and a speed limiter (30), which interacts with a speed limiter cable (34) arranged in the shaft (12). According to the invention, in order to develop the elevator system in such a way that the speed limiter cable (34) can be extended in a simple manner when the temporary machine compartment (14) is moved without said action leading to permanently increased energy consumption of the elevator system (10), the speed limiter (30) is arranged on the car (23) or on a counterweight (25) connected to the car (23) by means of the supporting cable (21), and that the speed limiter cable (34) has a first and second cable section (32, 52), wherein the first cable section (32) is clamped in a stationary manner between a cable retainer (46) connected to the temporary machine compartment (14) in a stationary manner and a releasable clamping device (50) arranged in a lower shaft region (48) and the second cable section (52) is connected to the first cable section (32) in the lower shaft region (48) and is stored in a storage region.

The invention relates to an elevator system (10) for a building under construction, comprising a vertical shaft (12), in which a temporary machine compartment (14) is retained, a driving device (18), which is arranged in the temporary machine compartment (14) and which is coupled by means of a supporting cable (21) to a car (23) that can be moved vertically up and down in the shaft (12), and a speed limiter (30), which interacts with a speed limiter cable (34) arranged in the shaft (12). According to the invention, in order to develop the elevator system in such a way that the speed limiter cable (34) can be extended in a simple manner when the temporary machine compartment (14) is moved without said action leading to permanently increased energy consumption of the elevator system (10), the speed limiter (30) is arranged on the car (23) or on a counterweight (25) connected to the car (23) by means of the supporting cable (21), and that the speed limiter cable (34) has a first and second cable section (32, 52), wherein the first cable section (32) is clamped in a stationary manner between a cable retainer (46) connected to the temporary machine compartment (14) in a stationary manner and a releasable clamping device (50) arranged in a lower shaft region (48) and the second cable section (52) is connected to the first cable section (32) in the lower shaft region (48) and is stored in a storage region.

The present invention provides an elevator system which prevents interruption of communication with a wireless communication device installed in a car, while suppressing the cost. The elevator system includes the car ascending/descending in a hoistway, multiple hoistway wireless communication devices installed in the hoistway, and a car wireless communication device installed in the car. The elevator system is configured to allow communication between the hoistway wireless communication device and the car wireless communication device. A spacing between the hoistway wireless communication devices which are installed at positions near a vertical center of the hoistway is smaller than a spacing between the hoistway wireless communication devices which are installed at positions farther from the vertical center.

A method for refinishing a surface structure of shaft material of an elevator, which extends along a shaft, enables the use of image data to determine an absolute position and/or speed of an elevator car. The elevator includes the elevator car, which is movable in the shaft, a camera, which is arranged at the elevator car and generates the image data from the surface structure, and an evaluating unit, which determines the absolute position and/or the speed of the elevator car from the image data. The surface structure is refinished at least locally in order to increase a distinctiveness of the surface structure in the image data. The shaft material can be, for example, a guide rail, a fastening element of the guide rail, or a shaft wall.

A safety switching for elevator systems includes a safety function and a safety switch dedicated to the safety function. The safety switch opens or closes a safety circuit between one connection point and a second connection point as a function of a safety state of the safety function. A test function tests whether or not the safety switch opens and closes the safety circuit as a function of the safety state of the safety function. A detection device is provided for the test function. An auxiliary energy function is provided wherein an auxiliary voltage can be temporarily applied via at least the safety switch and an input part of the detection device for performing the test function. Locally between the connection points the auxiliary energy function introduces an auxiliary energy for generating the auxiliary voltage. The safety switching can be used for converting or retrofitting an existing elevator system.