Kone Corporation

Henri Wenlin

Antti Saarelainen

Asmo Tenhunen

Mikko Viljanen

Janne Rossi

Matti Rasanen

Mikko Puranen

Tuukka Korhonen

Tapani Talonen

Tarvo Viita-aho

Antti Koskinen

Petri Alkula

Timo Vlasov

Andrej Burakov

Joni Lappalainen

Lasse Hurri

Hilkka Hamalainen

Jorma Mustalahti

Lauri Stolt

Janne Laine

Petteri Valjus

Juha-Matti Aitamurto

Arto Nakari

Antti Kallioniemi

Tuukka Kauppinen

Risto Jokinen

Janne Salomäki

Sami Saarela

Jyrki Laaksonheimo

Esa Putkinen

Tapio Siironen

Pekka Hallikainen

Jarkko Saloranta

Jukka Turpeinen

Juha Panula

Veijo Manninen

Niko Forsström

Ville Myyrylainen

Ville Myyryläinen

Antti I Maki

Jukka Penttila

Petri Hartikainen

Sami Janhunen

Antti I Mäki

Jukka Penttilä

Leena Ranta

Jorma Sarkkinen

Jyrki Jokinen

Mikko Parviainen

Pasi Lehtimäki

Oskari Perälä

Tarmo Torkkeli

Ari Pikivirta

Mikko Jussila

Matti RÄSÄNEN

Hilkka Hämäläinen

An arrangement for detecting bearing failures in an elevator system, which elevator system includes a hoisting machinery with a traction sheave on a rotary shaft, an elevator car, a counterweight and a hoisting element connected between the car and the counterweight and arranged to be moved by the a rotation of the traction sheave, and which arrangement includes at least a motion sensor for measuring rotation of the hoisting motor. The arrangement includes a signal processing unit connected to the motion sensor and arranged to process vibration signals originated in the bearings of the elevator system.

Arrangement for detecting bearing failures in elevator

An elevator brake arrangement includes at least a brake unit including a body, a brake plate assembly, a spring assembly, an electromagnet arrangement and a counter element, and also a rotating brake disc. The brake plate assembly includes at least two brake plates and a state detector that is arranged to monitor the operation states of the brake plates.

Elevator brake arrangement

A rope pulley of an elevator system is a free rotating pulley around which a hoisting rope of the elevator system can be guided. The free pulley is to be mounted to a car sling of an elevator car. The pulley includes an encoder for measuring the rotation movement of the pulley. The movement data are transmitted to a controller that converts the movement data into position data of the car in the hoistway, while further position data are gathered from identification markers that are installed in the hoistway. At least, the movement data of the rope pulley(s) are calibrated based on the position data from the identification markers. Thereby, the position of the car in the hoistway can be determined accurately and costly.

Elevator system with method of position detection of a car

The invention relates to a method for operating an elevator system. The method comprises receiving a request to drive an elevator car to a destination and generating an elevator car motion profile to serve the received request. The elevator car motion profile comprises at least the following motion parameters of the elevator car: acceleration, maximum speed, and deceleration. At least one of the maximum speed of the elevator car and the deceleration of the elevator car in the generated elevator car motion profile is defined on the basis of the destination. The invention relates also to a processing unit and an elevator system configured to perform the method at least partly.

Solution for operating an elevator having different elevator car motion profiles

A method for determining a degraded guide rail condition in an elevator system, a computer program product, and an elevator system are disclosed. The method includes obtaining first data including information about movement of an elevator component relative to a guide rail, and obtaining second data including information about movement of an elevator component. The method further includes comparing the first data and the second data to each other, and detecting, based on the comparison, a deviation fulfilling a deviation criterion. Still further, the method includes creating a signal indicating the degraded, such as misaligned, guide rail condition, such as of the first or the second guide rail.

Method for determining a degraded guide rail condition in an elevator system, computer program product, and elevator system

The measurement arrangement for measuring the rotation speed of a component of an elevator, escalator, moving walkway or moving ramp comprises an inductive sensor that is arranged stationary in respect of a rotation axis of the component and adjacent to the component or a measurement part that is attached to the component in a rotationally fixed manner, and the component or the measurement part is configured as rotationally unsymmetrical about the rotation axis so that different angular positions of the component about the rotation axis generate different output signals in the inductive sensor.

Measurement arrangement and method of monitoring rotation speed of a component of an elevator, escalator, moving walkway or moving ramp

An elevator brake includes a frame part including an electromagnet; a moving armature movably supported on the frame part; at least one energy storage, such as a work spring, arranged between the frame part and the moving armature; a friction lining associated with the moving armature and fitted to engage a braking surface with a normal force originating from the at least one energy storage, to brake movement of an elevator car or to hold the elevator car standstill; and a sensor system including one or more sensors mounted into the elevator brake and adapted to sense one or more operational parameters of the elevator brake and/or to directly measure normal force of the friction lining.

Elevator brake

A safety gear arrangement for an elevator system, comprising a safety gear mechanism comprising at least one wedge portion of the safety gear arrangement, wherein, in a normal position, the at least one wedge portion is retracted and, in an operated position, extended by a first spring element for acting on a guide rail of the elevator system, and a triggering device comprising an electromagnet, a second spring element, an actuating member, and an excitation power input, wherein the electromagnet is arranged, while being supplied with excitation power, to maintain the actuating member in an untriggered position against the second spring element, and the actuating member is arranged to operate the safety gear mechanism in response to moving of the member from the untriggered to a triggered position due to the second spring element.

Safety gear arrangement, elevator system, and method for operating a safety gear of an elevator system

According to an aspect, there is provided an elevator car parking brake comprising brake pads and an actuator configured to move the brake pads with respect to a guide rail. The elevator car parking brake further comprises levers, each having an associated brake pad; and at least one screw associated with the actuator and rotatably fixed to at least one lever via at least one attaching member. In a braking operation, the actuator is configured to rotate the at least one screw in a first direction with respect to the at least one attaching member, thus causing the levers with the brake pads to move towards the guide rail. In a brake release operation, the actuator is configured to rotate the at least one screw in a second direction with respect to the at least one attaching member, thus causing the levers with the brake pads to move away from the guide rail.

Elevator car parking brake

According to an aspect, there is provided an elevator car parking brake comprising a brake carrier having a first plate and a second plate, the plates being spaced from each other and positioned to enable a guide rail to travel within the space between the plates, a caliper movably connected to the brake carrier, brake pads, and an actuator configured to move the brake pads against a guide rail in a braking operation. The elevator car parking brake further comprises at least one first compression spring arranged between the first plate of the brake carrier and a brake pad directly associated with the actuator; and at least one second compression spring arranged between the second plate of the brake carrier and the caliper, the first and second compression springs being configured to keep the brake pads substantially centered with respect to the brake carrier.

An elevator safety brake unit, an elevator including at least two of the safety brake units, and a method for testing the safety brake units are disclosed. Each safety brake unit includes a frame part, a movable composition movably supported on the frame part, a compression spring assembly associated with the movable composition, and adapted to activate a braking by pushing the movable composition forward, and a coil assembly of an electromagnet disposed in the frame part and adapted to deactivate the braking by pulling the movable composition backwards. Each movable composition includes at least two movable elements, one compression spring for each movable element, and at least one coil assembly adapted to deactivate the braking by pulling the at least two movable elements backwards.

Elevator safety brake, elevator and method for testing elevator safety brakes

An element includes a vibration isolation pad with two opposite substantially planar surfaces, an elastic material layer being permanently attached to a first of the two substantially planar surfaces of the vibration isolation pad, a load sensor arrangement integrated into the combined elevator vibration isolation and load measurement element. A load acting on the combined elevator vibration isolation and load measurement element can be measured with the load sensor arrangement as a function of the compression of the elastic material layer.

Combined elevator vibration isolation and load measurement element

The present invention relates to a conveyor system comprising: a drive machine, a conveyor control unit configured to control operation of a conveyor device, a sensor array comprising at least one sensor mounted to the drive machine and adapted to measure one or more properties of the drive machine, a processing unit associated with the drive machine, wherein the processing unit is connected to the sensor array and configured to obtain and process measurement data from the sensor array to generate in-formation about an operation of the drive machine, and a communication channel between the conveyor control unit and the processing unit. The conveyor system may be an elevator system, an escalator system or a moving walk system.

Monitoring solution for a conveyor system

An adjustable brake controller of an elevator brake including a DC bus, first terminals for connecting the brake controller to a first magnetizing coil, second terminals for connecting the brake controller to a second magnetizing coil, a first controllable power switch coupled between the first terminals and the DC bus, the first controllable power switch being configured to supply electric power from the DC bus to the first magnetic coil responsive to a first control signal, a second controllable power switch coupled between the second terminals and the DC bus, the second controllable power switch being configured to supply electric power from the DC bus to the second magnetizing coil responsive to a second control signal, and a controller configured to generate the first and the second control signals for controlling the first and second power switches, respectively, with a brake open mode and a brake holding mode.

Fully adjustable brake controller without need of DC-link

Growing community of inventors

Helsinki, Finland

Henri Wenlin