Actuated By Load Support Contacting Trip In Shaft Patents (Class 187/302)
  • Patent number: 8708106
    Abstract: An elevator arrangement, comprising an elevator car arranged to move in an elevator shaft or equivalent, preferably along car guide rails, and an element which is disposed in the elevator shaft or equivalent and is shiftable between an activated state and an inactivated state, and an activating device for shifting the said element between the activated and inactivated states. The activating device includes a flexible element, such as e.g. a rope or equivalent, movably attached to a fixed structure of the elevator shaft or equivalent, and the said flexible element is connected to the said shiftable element in a manner permitting the shiftable element to be shifted by means of the flexible element.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: April 29, 2014
    Assignee: Kone Corporation
    Inventors: Matti Räsänen, Teemu Tolonen, Jaakko Kahila, Mauno Mattila, Jouni Lappalainen
  • Patent number: 8528702
    Abstract: A lift cage includes a platform having a plurality of platform sections. The cage includes a front-sided and a rear-sided platform section arranged on a central platform section. The platform sections have connection points which are arranged on parallel, vertical planes, whereon the platform sections can be connected together by connection elements. In order to provide additional stabilization for the cage platform, stable platform edge profiles are connected to the uppersides of all platform sections. Subsystems of the lift cage can be premounted in the platform sections. A method for installing a lift wherein a cage platform is prepared in at least two separate platform sections, and the platform sections of the cage platform, which are delivered separately, are connected together by connection elements during installation.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: September 10, 2013
    Assignee: Inventio AG
    Inventor: Julien Maury
  • Patent number: 8136637
    Abstract: A safety device for an elevator system includes a retractable element mounted on a support. The retractable element has a stopping position in which a catch portion of the retractable element projects from the support to engage a triggering member of a safety brake associated with an elevator car as the elevator car traveling in a selected direction approaches a selected vertical position, and a retracted position. An actuator selectively controls the position of the retractable element. A position sensor is responsive to the position of the retractable element to make sure that it is in its stopping position when needed.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: March 20, 2012
    Assignee: Otis Elevator Company
    Inventors: Thomas Coquerelle, Frédéric Beauchaud, Nicolas Fonteneau, Dominique Goulet, Olivier Dukacz, Gérard Sirigu, Pascal Rebillard
  • Publication number: 20110272216
    Abstract: In an elevator apparatus, an operation control section controls an operation of a car. Further, a safety monitoring section detects an abnormal state of targets to be monitored during running of the car to stop the running of the car. A safety-monitoring-function inspection section inspects a function of the safety monitoring section. The safety-monitoring-function inspection section causes the safety monitoring section to detect a transition of a state of the targets to be monitored to the abnormal state regardless of an actual state of the targets to be monitored while the car is running under control of the operation control section.
    Type: Application
    Filed: December 15, 2009
    Publication date: November 10, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takuo Kugiya, Hiroshi Kigawa, Masunori Shibata, Rikio Kondo
  • Publication number: 20100155184
    Abstract: The elevator has a car movable vertically within a shaft between lower and upper end positions and a drive system coupled to a traction system for controlling movement of the car. A limit switch which is open when the car is in a selected distance range from one of the end positions. The limit switch forms part of a power line supplying power to the drive system for controlling movement of the car in a direction towards that end position in an inspection operation. Thus movement of the car is prevented only in that direction when the car is in the selected distance range in an inspection operation.
    Type: Application
    Filed: June 30, 2006
    Publication date: June 24, 2010
    Inventors: Gerard Sirigu, Pascal Rebillard, Olivier Dukacz, Dominique Goulet, Alain Simonot, Jean-Noel Cloux, David Pillin, Florence Picard, Frèdèric Beauchaud, Thomas Coquerelle, Michel Beeuwsaert, Nicolas Fonteneau, Andres Monzon, Fernando Del Rio, Peter Herkel, Dirk Tegtmeier
  • Publication number: 20040222046
    Abstract: A device provides an elevator installation with a shortened car travel path to establish a temporary protective space below and/or above the car upon activation of the car safety brake device. The speed limiter cable is limited, independently of the speed limiter, in a travel path by a switchable stop device. This limitation causes an actuation of the car safety brake device in the corresponding travel direction.
    Type: Application
    Filed: May 4, 2004
    Publication date: November 11, 2004
    Inventor: Hubert Gut
  • Publication number: 20040188184
    Abstract: A device and procedure for creating and securing a temporary safety space within an elevator hoistway such that a service or maintenance technician can work with impunity from a car entering the safety space. In particular, the device includes a stop bar for installation between and in engagement with opposing guide rails of the hoistway to prevent upward or downward movement of the car or a counterweight.
    Type: Application
    Filed: March 18, 2004
    Publication date: September 30, 2004
    Inventors: Johannes Kocher, Eamon Mc Govern
  • Patent number: 6736242
    Abstract: An arrangement for a hoist secures safety zones in case persons should be outside the hoist cage in a hoist shaft. The arrangement can identify risk situations and includes mechanical limitation devices that can enter into the path of the hoist cage. The limitation devices are arranged at a distance from the upper and lower end limits of the hoist cage during normal operation in order to form upper and lower safety end limits, thereby mechanically securing the safety zones. Striking surfaces are arranged to tilt between an inactive state outside the path of the hoist cage and an active state in the path of the hoist cage forming the safety end limits. The striking surfaces are balanced so that they strive to take their respective active states. A retaining device is arranged on each striking surface to keep the striking surfaces in an inactive state during normal operation and to release the striking surfaces in a risk situation so that it takes its respective active state.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: May 18, 2004
    Assignee: Alimak AB
    Inventor: Gunnar Nygren
  • Publication number: 20020084148
    Abstract: The present invention concerns an arrangement for a hoist to secure safety zones in case persons should be outside the hoist cage in a hoist shaft, comprising a means of identifying risk situations and mechanical means of limitation that can enter into the path of the hoist cage arranged at a distance from the upper and lower end limits of the hoist cage during normal operation in order to form an upper and a lower safety end limit, mechanically securing the said safety zones.
    Type: Application
    Filed: November 2, 2001
    Publication date: July 4, 2002
    Applicant: Alimak AB
    Inventor: Gunnar Nygren
  • Patent number: 5864103
    Abstract: An apparatus for generating function signals to an elevator controller for controlling an elevator car (1) at terminal landings in a building includes an upper cam (3) and a lower cam (4) for mounting on a wall (2a, 2b) in an elevator shaft (2) at a top landing and a bottom landing respectively, an upper switch (5) and a lower switch (8) for mounting on the elevator car and for connection to a source of electrical power (12) and an interface circuit (10) connected to the switches. The interface circuit (10) has a lower limit relay coil (16), an upper limit relay coil (27), normally closed up relay contact sets (17,19,35) and normally closed down relay contact sets (24,28,30) which cooperate with the switches (5,8) for generating upper and lower limit function signals to control car travel and upper and lower slow down signals to control car speed.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: January 26, 1999
    Assignee: Inventio AG
    Inventors: Robert J. Koeppe, Jr., Ronald G. Singletary, Alan J. Raite
  • Patent number: 5773771
    Abstract: Apparatus for restricting motion of an elevator car includes bars or other stiff, elongated members, which are extended outwardly from opposing ends of the elevator car, when the car is positioned in a specified zone of vertical displacement, above the lower edge thereof The displacement zone may be on the order of twelve inches. An elevator control, such as an inspection bank mounted on top of the elevator car, is then operated to move the elevator car slightly downward, to the lower edge of the displacement zone, whereupon the elongated members are brought into solid contact with respective complementary supporting members, joined to opposing elevator guide rails. As the elongated members are extended, a switching arrangement, electrically coupled to the control, is simultaneously actuated to prevent movement of the elevator car above the displacement zone while the elongated members are in their extended mode.
    Type: Grant
    Filed: July 30, 1996
    Date of Patent: June 30, 1998
    Inventor: Charles Chatham