Kone Corporation

Antti Koskinen

Lauri Stolt

Mikko Puranen

Pekka Hallikainen

Hannu Lehtinen

Tuukka Kauppinen

Antti Saarelainen

Henri Wenlin

Timo Vlasov

Jani Renvall

Toma Cornea

Petri Hartikainen

Hilkka Hamalainen

Riku Lampinen

Risto Jokinen

Sami Saarela

Janne Salomäki

Jyrki Laaksonheimo

Esa Putkinen

Jarkko Saloranta

Antti I Maki

Jukka Turpeinen

Antti Ikonen

Antti I Mäki

Jukka Penttila

Teemu Majasalmi

Jukka Penttilä

Serguei Laitinen

Jorma Sarkkinen

Hilkka Hämäläinen

Antti Mäki

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.

A method for controlling movement of an elevator car includes driving the car vertically to a landing; activating a park brake; and holding the car immovable with the park brake. The holding includes compressing a guide rail by compression members with a first compression force; opening a door for allowing loading and/or unloading the car; maintaining the door open for allowing loading and/or unloading the car while the car is held immovable; and starting closing movement of the door. After the starting closing movement of the door, relieving the brake for allowing the elevator car to start to move vertically. The relieving includes reducing the compression force of the brake, to be smaller than the first compression force, such that the compression members start sliding vertically against the guide rail; maintaining compression with a smaller compression force than the first compression force, allowing the compression members to continue to slide vertically against the guide rail; and thereafter removing the compression.

Method and elevator

According to an aspect, there is provided an elevator car parking brake. An operating fork is configured to move within a housing in a direction perpendicular to an end surface of a guide rail in response to operating an actuator. When the actuator is operated to move the operating fork within the housing towards the guide rail to achieve a braking state, the operating fork is configured to push braking wedges towards side surfaces of the guide rail to contact the side surfaces. When the actuator is operated to move the operating fork within the housing away from the guide rail to achieve a brake release state, detaching means are configured to pull the braking wedges away from the side surfaces of the guide rail.

The system comprises a synchronization shaft rotatably supported on an elevator car frame, the synchronization shaft being operatively connected to at least one safety gear, a lever attached to the synchronization shaft, an electromagnet operatively connected to the lever, spring means operatively connected to the synchronization shaft, and resetting means operatively connected to the synchronization shaft. Deactivation of the electromagnet releases the lever allowing the spring means to rotate the synchronization shaft from a first position to a second position in which the safety gear is activated. Activation of the resetting means rotates the synchronization shaft from the second position to the first position in which the safety gear is deactivated and the spring means is brought back to the excited state at the same time.

Elevator safety gear trigger and reset system

A resetting device for resetting an actuator for actuating a safety gear of an elevator includes an actuation spring to be brought into a compressed state by a resetting force, an electric motor for providing the resetting force and a transmission for transmitting the resetting force of the electric motor to the actuation spring. The transmission provides a positive gear ratio.

Resetting device for resetting an actuator for actuating a safety gear of an elevator

A pulley wheel rack includes a first rack part and a second rack part; a pulley wheel space between the first rack part and the second rack part; a first frame arranged to the first rack part, and a second frame arranged to the second rack part; an axle configured to extend from the first frame to the second frame, and configured to be rotatable into different securable positions by a ball joint arranged into the first frame and the second frame; and a pulley wheel bearing-mounted on the axle by hub bearings, and including at least one traction surface for engaging an elevator rope. A method for aligning a pulley wheel in a pulley wheel rack is also disclosed.

Pulley wheel rack

A rope lifting tool for belt-shaped ropes comprises a first guide for guiding the rope lifting tool along a first guide rail; a second guide for guiding the rope lifting tool along a second guide rail; an upright plate, and an inclined plate at an acute angle relative to the upright plate. The upright plate and the inclined plate have a wedge shaped space between them. A plurality of wedge members are placed adjacent each other inside the wedge-shaped space. A rope gap for receiving an end of a belt-shaped rope is formed between each wedge member and the upright plate, which rope gap is narrowable by wedging of the wedge member in the wedge shaped space. A rope lifting arrangement includes the rope lifting tool.

Rope lifting tool and a rope lifting arrangement

A rope storage unit includes a rope reel, formed by a rope wound in a spiral form and a support body provided with an inner space inside which the rope reel is positioned supported by the support body. The rope is a rod having a straight form when in rest state and elastically bendable away from the straight form, the rope being under substantial bending tension in the spiral form. The support body includes one or more support members delimiting the inner space and surrounding radially the rope reel. The outer rim of the rope reel radially compresses against the one or more support members as an effect of the bending tension. A method is provided for installing an elevator rope implementing the rope storage unit, as well as to a method for fabricating the rope storage unit.

Rope storage unit, a method for installing elevator and a method for fabricating rope storage unit

Growing community of inventors

Helsinki, Finland

Antti Koskinen