Patents by Inventor Tarvo Viita-Aho

Tarvo Viita-Aho has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220388814
    Abstract: A method for modernizing an elevator system, includes using a first and second car for transporting passengers and/or goods between vertically displaced floors of a building, and thereafter removing the first elevator car from use for transporting passengers and/or goods between vertically displaced floors, and thereafter installing a construction time elevator into the lower end of the first hoistway, the traveling zone of the car of the construction time elevator covering only partially the height of the first hoistway; and thereafter using the car of the construction time elevator and the second car simultaneously for transporting passengers and/or goods between vertically displaced floors of the building, during which using the method includes performing construction work in the first hoistway above the traveling zone of the car of the construction time elevator; and thereafter changing the traveling zone of the car of the construction time elevator to extend higher in the hoistway, and thereafter using t
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Applicant: KONE Corporation
    Inventors: Markku Haapaniemi, Matti Räsänen, Tarvo Viita-aho, Petri Kere, Janne Laine, Jari Österman, Jorma Mustalahti, Anssi Venho, Jori Hägg, Otto Lanz
  • Patent number: 11498812
    Abstract: The invention relates to an elevator landing door assembly and a method for installing an elevator landing door. The landing door assembly comprises at least a landing door unit to be assembled to a landing door base opening having an upper edge, two side edges and a lower edge, which landing door unit comprises at least a top track and one or more door panels suspended by the top track through one or more supporting elements, and a door sill. The assembly comprises fixing elements in the landing door base opening equipped with receiving parts for fastening the landing door unit.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: November 15, 2022
    Assignee: Kone Corporation
    Inventors: Markku Haapaniemi, Matti Rasanen, Tarvo Viita-Aho, Anssi Venho
  • Patent number: 11447370
    Abstract: The invention relates to a method for constructing an elevator comprising constructing a movable machine room in the bottom end of a hoistway formed in a building under construction; and thereafter hoisting the movable machine room; and constructing an elevator car in the bottom end of the hoistway below the movable machine room; and providing a counterweight in the bottom end of the hoistway below the movable machine room; connecting the elevator car and the counterweight with a suspension roping; and thereafter hoisting the movable machine room to a first transport position; and thereafter mounting the movable machine room to the first transport position in the hoistway vertically supported on stationary structures; and thereafter using the elevator car for transporting passengers and/or goods below the movable machine room while the machine room is mounted in said first transport position and the elevator car and the counterweight hang suspended from the machine room by the hoisting roping; and thereafter
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: September 20, 2022
    Assignee: Kone Corporation
    Inventors: Otto Lanz, Matti Rasanen, Anssi Venho, Markku Haapaniemi, Janne Mikkonen, Janne Laine, Tarvo Viita-Aho, Markku Haivala, Jukka Laitinen, Hans Valtonen, Aki Haikonen, Jorma Mustalahti, Jori Hagg, Jari Osterman, Petri Kere
  • Patent number: 11414303
    Abstract: A method for modernizing an elevator system, includes using a first and second car for transporting passengers and/or goods between vertically displaced floors of a building, and thereafter removing the first elevator car from use for transporting passengers and/or goods between vertically displaced floors, and thereafter installing a construction time elevator into the lower end of the first hoistway, the traveling zone of the car of the construction time elevator covering only partially the height of the first hoistway; and thereafter using the car of the construction time elevator and the second car simultaneously for transporting passengers and/or goods between vertically displaced floors of the building, during which using the method includes performing construction work in the first hoistway above the traveling zone of the car of the construction time elevator; and thereafter changing the traveling zone of the car of the construction time elevator to extend higher in the hoistway, and thereafter using t
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: August 16, 2022
    Assignee: KONE CORPORATION
    Inventors: Markku Haapaniemi, Matti Räsänen, Tarvo Viita-aho, Petri Kere, Janne Laine, Jari Österman, Jorma Mustalahti, Anssi Venho, Jori Hägg, Otto Lanz
  • Publication number: 20220219945
    Abstract: The self-climbing elevator machine room comprises two decks positioned upon each other. Each deck comprises guide means supporting the deck movably on guide rails and locking means locking and unlocking the deck to the guide rails and/or to guide rail fixing means. Lifting means move the two decks along the guide rails in relation to each other. At least one power source provides power to the lifting means. The elevator machine room climbs stepwise along the guide rails by alternatingly locking and unlocking the lower deck and the upper deck to the guide rails and/or to the guide rail fixing means and thereafter raising the unlocked deck.
    Type: Application
    Filed: March 31, 2022
    Publication date: July 14, 2022
    Applicant: Kone Corporation
    Inventors: Otto LANZ, Matti RASANEN, Anssi VENHO, Janne MIKKONEN, Janne LAINE, Markku HAAPANIEMI, Jari KANTOLA, Aki HAIKONEN, Jari OSTERMAN, Petri KERE, Jori HAGG, Jorma MUSTALAHTI, Tarvo VIITA-AHO
  • Publication number: 20220127113
    Abstract: The invention relates to a method for transporting construction material and/or equipment into and inside a building under construction, wherein the building under construction comprises plurality of vertically displaced floors, the method comprising providing a control system configured to automatically operate one or more transporting devices, including at least an elevator; providing a storage at the construction site of the building; and transporting into the storage at the construction site of the building under construction plurality of transport containers containing construction material and/or equipment; storing said transport containers in the storage; and delivering transport containers belonging to said plurality of transport containers from said storage to different destination floors, the delivering comprising obtaining an order to deliver a transport container, the order identifying the transport container to be delivered; and retrieving the transport container identified in the order from the
    Type: Application
    Filed: January 5, 2022
    Publication date: April 28, 2022
    Applicant: Kone Corporation
    Inventors: Markku HAAPANIEMI, Matti RASANEN, Sami SAARELA, Anssi VENHO, Janne MIKKONEN, Otto LANZ, Tarvo VIITA-AHO, Petri KERE
  • Publication number: 20220127107
    Abstract: The invention relates to a method for managing flow of people and goods within a building under construction, comprising providing one or more elevator control systems for automatically controlling movement of elevator cars; providing a first passenger elevator, the first passenger elevator comprising a first passenger elevator car for transporting people, the first passenger elevator car being vertically movable in an elevator hoistway formed inside the building under construction, vertical movement of the car being automatically controlled by an elevator control system, the first passenger elevator car comprising an interior delimited by floor, walls, ceiling and at least one automatic door; and providing a goods elevator, the goods elevator comprising a goods elevator car for transporting goods, the goods elevator car being vertically movable beside the first passenger elevator car in an elevator hoistway formed inside the building under construction, vertical movement of the goods elevator car being autom
    Type: Application
    Filed: January 5, 2022
    Publication date: April 28, 2022
    Applicant: Kone Corporation
    Inventors: Markku HAAPANIEMI, Matti RASANEN, Sami SAARELA, Anssi VENHO, Janne MIKKONEN, Otto LANZ, Tarvo VIITA-AHO, Petri KERE
  • Publication number: 20220127110
    Abstract: The invention relates to a method for transporting construction material and/or equipment inside a building under construction, wherein the building under construction comprises plurality of vertically displaced floors, the method comprising providing an elevator for transporting transport containers in the building under construction, said elevator comprising at least a load receiving unit vertically movable along one or more guide rail lines in an elevator shaft formed in the building under construction; and providing plurality of transport containers each comprising a container body, and an identification provided on the container body for identifying the container and/or its destination in the building, most preferably the destination floor in the building under construction; providing one or more detectors within the building under construction for detecting identifications of containers when they are within the detection ranges of the one or more detectors; moving a first transport container belonging t
    Type: Application
    Filed: January 5, 2022
    Publication date: April 28, 2022
    Applicant: Kone Corporation
    Inventors: Markku HAAPANIEMI, Matti RASANEN, Sami SAARELA, Anssi VENHO, Janne MIKKONEN, Otto LANZ, Tarvo VIITA-AHO, Emil HAGSTROM, Simo MAKIMATTILA, Kristian VIINIKKALA, Peter EAGLING, Timo RINNE, Petri KERE
  • Publication number: 20220024723
    Abstract: The invention relates to a method for constructing an elevator, comprising providing an elevator car; providing plurality of prefabricated hoistway modules to be piled on top of each other, each hoistway module bordering a hoistway space into which the whole elevator car or at least an upper or lower end thereof can be fitted to move; and piling said plurality of prefabricated modules on top of each other, such that the hoistway spaces of the prefabricated modules are vertically aligned forming a continuous vertically elongated hoistway where the elevator car can be fitted to move; and arranging the elevator car to be vertically movable in the hoistway. The invention also relates to an elevator obtained with the method.
    Type: Application
    Filed: September 30, 2021
    Publication date: January 27, 2022
    Applicant: Kone Corporation
    Inventors: Jukka LAITINEN, Anssi VENHO, Ville MYYRYLAINEN, Tarvo VIITA-AHO
  • Publication number: 20220002115
    Abstract: 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.
    Type: Application
    Filed: June 24, 2021
    Publication date: January 6, 2022
    Applicant: Kone Corporation
    Inventors: Janne LAINE, Veijo MANNINEN, Tuukka KORHONEN, Matti RASANEN, Jorma MUSTALAHTI, Ville MYYRYLAINEN, Tarvo VIITA-AHO, Henri WENLIN
  • Publication number: 20210387832
    Abstract: The invention concerns a method, system and computer program for monitoring the run of a roping interconnecting a car and a counterweight of an elevator and for detecting an abnormal operation condition during the drive of a traction sheave intending therewith the car and the counterweight to be moved via said roping. Said roping is running on its way from the car to the traction sheave via at least one pulley and on its way from the counterweight to the traction sheave via at least one pulley, wherein the rotation of said at least two pulleys is monitored by sensing their rotation. These rotation data are then analysed in view of a mutual correlation indicating therewith a synchronized run of the roping on either side of the traction sheave, and detecting therewith an abnormal situation when detecting an absence of such correlation.
    Type: Application
    Filed: May 3, 2021
    Publication date: December 16, 2021
    Applicant: KONE Corporation
    Inventors: Mikko Viljanen, Tarvo Viita-aho, Tapani Talonen, Matti Räsänen, Juha-Matti Aitamurto, Tapio Siironen, Ville Myyryläinen, Henri Wenlin
  • Publication number: 20210331898
    Abstract: A method for modernizing an elevator system, includes using a first and second car for transporting passengers and/or goods between vertically displaced floors of a building, and thereafter removing the first elevator car from use for transporting passengers and/or goods between vertically displaced floors, and thereafter installing a construction time elevator into the lower end of the first hoistway, the traveling zone of the car of the construction time elevator covering only partially the height of the first hoistway; and thereafter using the car of the construction time elevator and the second car simultaneously for transporting passengers and/or goods between vertically displaced floors of the building, during which using the method includes performing construction work in the first hoistway above the traveling zone of the car of the construction time elevator; and thereafter changing the traveling zone of the car of the construction time elevator to extend higher in the hoistway, and thereafter using t
    Type: Application
    Filed: March 15, 2021
    Publication date: October 28, 2021
    Applicant: KONE Corporation
    Inventors: Markku Haapaniemi, Matti Räsänen, Tarvo Viita-aho, Petri Kere, Janne Laine, Jari Österman, Jorma Mustalahti, Anssi Venho, Jori Hägg, Otto Lanz
  • Publication number: 20210284499
    Abstract: A method for releasing safety gears of an elevator car or a counterweight of an elevator system, the elevator system including a stalling detector coupled to compensation roping associated with the elevator car or the counterweight and configured to detect an increased rope tension, includes preventing a stalling indication from the stalling detector during a rescue operation; and moving the elevator car in order to release the safety gears.
    Type: Application
    Filed: February 25, 2021
    Publication date: September 16, 2021
    Applicant: KONE Corporation
    Inventors: Tapio Siironen, Tapani Talonen, Tarvo Viita-aho
  • Publication number: 20210245997
    Abstract: The invention relates to a movable machine room comprising a support platform of a hoisting machine, the support platform comprising one or more releasable mounting mechanisms for releasably mounting the moveable machine room in a hoistway, and a hoisting machine mounted on the support platform; a working platform on top of the support platform, preferably forming a roof of the moveable machine room and/or comprising handrails; and at least one support structure supported by which the working platform rests on the support platform; and wherein each said support structure is selectively actuatable to expand in vertical direction for hoisting the working platform higher above the support platform taking reaction force from the support platform, or to contract in vertical direction for lowering the working platform back towards the support platform. The invention relates to an arrangement and a method implementing the movable machine room.
    Type: Application
    Filed: January 29, 2021
    Publication date: August 12, 2021
    Applicant: Kone Corporation
    Inventors: Matti RASANEN, Tarvo VIITA-AHO, Markku HAIVALA, Jukka LAITINEN, Markku HAAPANIEMI, Hans VALTONEN, Anssi VENHO, Janne MIKKONEN, Aki HAIKONEN, Otto LANZ, Janne LAINE, Jorma MUSTALAHTI, Jori HAGG, Jari OSTERMAN, Petri KERE
  • Publication number: 20210245998
    Abstract: The invention relates to a method for constructing an elevator comprising constructing a movable machine room in the bottom end of a hoistway formed in a building under construction; and thereafter hoisting the movable machine room; and constructing an elevator car in the bottom end of the hoistway below the movable machine room; and providing a counterweight in the bottom end of the hoistway below the movable machine room; connecting the elevator car and the counterweight with a suspension roping; and thereafter hoisting the movable machine room to a first transport position; and thereafter mounting the movable machine room to the first transport position in the hoistway vertically supported on stationary structures; and thereafter using the elevator car for transporting passengers and/or goods below the movable machine room while the machine room is mounted in said first transport position and the elevator car and the counterweight hang suspended from the machine room by the hoisting roping; and thereafter
    Type: Application
    Filed: January 13, 2021
    Publication date: August 12, 2021
    Applicant: Kone Corporation
    Inventors: Otto LANZ, Matti RASANEN, Anssi VENHO, Markku HAAPANIEMI, Janne MIKKONEN, Janne LAINE, Tarvo VIITA-AHO, Markku HAIVALA, Jukka LAITINEN, Hans VALTONEN, Aki HAIKONEN, Jorma MUSTALAHTI, Jori HAGG, Jari OSTERMAN, Petri KERE
  • Publication number: 20210214188
    Abstract: 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.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 15, 2021
    Applicant: KONE Corporation
    Inventors: Henri Wenlin, Juha Panula, Oskari Perälä, Niko Forsström, Sami Janhunen, Juha-Matti Aitamurto, Tarvo Viita-aho
  • Patent number: 11034552
    Abstract: The invention relates to a passenger conveyor, such as an escalator or autowalk, comprising a band of conveying elements; a diverting wheel for diverting the passage of the band of conveying elements and/or a traction member thereof and a brake for braking rotation of the diverting wheel. The brake comprises a screw member having a conical threaded external rim; a nut member having a conical threaded internal rim, the screw member and nut member being screwed together, one of said screw member and nut member being connected with the diverting wheel for being driven by the diverting wheel. The brake further comprises a stopping device for stopping rotation of the other of said screw member and nut member.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: June 15, 2021
    Assignee: Kone Corporation
    Inventors: Tarvo Viita-Aho, Jorma Mustalahti, Raimo Pelto-Huikko, Janne Laine
  • Publication number: 20200346898
    Abstract: The invention relates to an elevator landing door assembly and a method for installing an elevator landing door. The landing door assembly comprises at least a landing door unit to be assembled to a landing door base opening having an upper edge, two side edges and a lower edge, which landing door unit comprises at least a top track and one or more door panels suspended by the top track through one or more supporting elements, and a door sill. The assembly comprises fixing elements in the landing door base opening equipped with receiving parts for fastening the landing door unit.
    Type: Application
    Filed: July 17, 2020
    Publication date: November 5, 2020
    Applicant: Kone Corporation
    Inventors: Markku HAAPANIEMI, Matti RASANEN, Tarvo VIITA-AHO, Anssi VENHO
  • Publication number: 20200283259
    Abstract: The method includes loading and/or unloading the car, determining whether the car doors are fully closed or not fully open, measuring a total actual axial mass F?act hanging from the traction sheave, determining a stalling limit total minimum axial mass F?min, checking reopening of the car doors, whereby if the car doors are reopened, then return to beginning, else, continue, permitting starting of elevator, comparing the total actual axial mass with the stalling limit total minimum axial mass, whereby if the total actual axial mass is equal to or greater than the stalling limit total minimum axial mass, then permit normal run of the elevator car to the next landing, else, stop the elevator.
    Type: Application
    Filed: February 6, 2020
    Publication date: September 10, 2020
    Applicant: KONE Corporation
    Inventors: Tarvo Viita-aho, Tapani Talonen, Janne Mikkonen, Tapio Siironen, Ville Myyryläinen, Alessio Calcagno, Markku Jokinen
  • Publication number: 20200255262
    Abstract: An elevator arrangement having an elevator includes an elevator car having a floor and a roof. The elevator car is provided with one or more extension spaces which are arranged to extend the height of the elevator car during construction time use.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 13, 2020
    Applicant: KONE Corporation
    Inventors: Markku Haapaniemi, Matti Räsänen, Markku Häivälä, Tarvo Viita-aho, Jukka Laitinen, Janne Mikkonen, Anssi Venho, Pekka Perunka, Hans Valtonen, Emil Hagström, Simo Mäkimattila