Patents Assigned to Toshiba Elevator Kabushiki Kaisha
-
Patent number: 9415972Abstract: The elevator operation control method according to the embodiment estimate the amount of shake of a long object which moves accompanying lifting and lowering of a passenger cage by way of simulation based on the amount of shake of a building in which an elevator is installed and current position information of the passenger cage of the elevator. The elevator operation control method change every second a physical model of the simulation according to the position of the running passenger cage, and simulate in real time the amount of shake of the long object from a current amount of shake of the building and position information of the running passenger cage. The elevator operation control method compare the amount of shake of the long object calculated by the simulation and a threshold, and perform a control operation according to the result.Type: GrantFiled: November 8, 2013Date of Patent: August 16, 2016Assignee: TOSHIBA ELEVATOR KABUSHIKI KAISHAInventor: Kazuhiro Tanaka
-
Patent number: 9352937Abstract: An escalator step includes a tread having a body section on which a plurality of convex sections are arranged in parallel, a riser connected to a rear end portion of the tread and having thereon a plurality of convex sections and a plurality of concave sections formed between the adjacent convex sections, and a shock absorbing cleat provided on a corner at which the riser and tread are connected to each other. The shock absorbing cleat includes a plurality of long convex sections which are arranged in parallel and a plurality of short convex sections which are arranged in parallel between the adjacent long convex sections. The shock absorbing cleat is formed of a polymeric material having a Young's modulus of 1000 MPa or less.Type: GrantFiled: August 25, 2014Date of Patent: May 31, 2016Assignee: TOSHIBA ELEVATOR KABUSHIKI KAISHAInventors: Shigeo Nakagaki, Kosei Kamimura, Yoshinobu Ishikawa, Hideo Takahashi, Takayuki Kikuchi, Satoshi Yamaguchi
-
Patent number: 9309093Abstract: An escalator step includes: a tread that includes a body section wherein a plurality of convex sections, which are parallel in a travelling direction, are arranged in a width direction; a riser that is coupled at a rear end portion of the body section of the tread and on which a plurality of convex sections are arranged in a width direction, with troughs being formed between adjacent convex sections; and a shock absorbing cleat located in a notch formed in a corner portion where the riser and the tread are coupled together. On the shock absorbing cleat, a plurality of convex sections, arranged in a width direction and parallel to the travelling direction, rear end surfaces are flush with troughs of the riser, each of the convex sections of the shock absorbing cleat is shifted a half pitch from each of the convex sections of the riser.Type: GrantFiled: February 12, 2015Date of Patent: April 12, 2016Assignee: TOSHIBA ELEVATOR KABUSHIKI KAISHAInventors: Shigeo Nakagaki, Kosei Kamimura, Yoshinobu Ishikawa, Takayuki Kikuchi, Hideo Takahashi, Satoshi Yamaguchi
-
Publication number: 20150251879Abstract: An escalator step includes: a tread that includes a body section wherein a plurality of convex sections, which are parallel in a travelling direction, are arranged in a width direction; a riser that is coupled at a rear end portion of the body section of the tread and on which a plurality of convex sections are arranged in a width direction, with troughs being formed between adjacent convex sections; and a shock absorbing cleat located in a notch formed in a corner portion where the riser and the tread are coupled together. On the shock absorbing cleat, a plurality of convex sections, arranged in a width direction and parallel to the travelling direction, rear end surfaces are flush with troughs of the riser, each of the convex sections of the shock absorbing cleat is shifted a half pitch from each of the convex sections of the riser.Type: ApplicationFiled: February 12, 2015Publication date: September 10, 2015Applicant: TOSHIBA ELEVATOR KABUSHIKI KAISHAInventors: Shigeo NAKAGAKI, Kosei Kamimura, Yoshinobu Ishikawa, Takayuki Kikuchi, Hideo Takahashi, Satoshi Yamaguchi
-
Publication number: 20150136563Abstract: An escalator step includes a tread having a body section on which a plurality of convex sections are arranged in parallel, a riser connected to a rear end portion of the tread and having thereon a plurality of convex sections and a plurality of concave sections formed between the adjacent convex sections, and a shock absorbing cleat provided on a corner at which the riser and tread are connected to each other. The shock absorbing cleat includes a plurality of long convex sections which are arranged in parallel and a plurality of short convex sections which are arranged in parallel between the adjacent long convex sections. The shock absorbing cleat is formed of a polymeric material having a Young's modulus of 1000 MPa or less.Type: ApplicationFiled: August 25, 2014Publication date: May 21, 2015Applicant: TOSHIBA ELEVATOR KABUSHIKI KAISHAInventors: Shigeo NAKAGAKI, Kosei KAMIMURA, Yoshinobu ISHIKAWA, Hideo TAKAHASHI, Takayuki KIKUCHI, Satoshi YAMAGUCHI
-
Patent number: 8955649Abstract: An elevator according to an embodiment of the present invention includes a guide rail installed in an elevator hoist way in a vertical direction, an elevator car that ascends and descends along the guide rail, an elevator guide device, and a cleaning jig for an elevator guide device. The elevator guide device is fixed to the elevator car, and guides the running elevator car along the guide rail without bringing the elevator car into contact with the guide rail while a predetermined clearance is maintained with the guide rail using magnetic force generated by a magnet guide unit. The cleaning jig for an elevator guide device is installed on the guide rail to come into contact with a magnetic pole of the magnetic guide unit to remove a foreign matter attached to a surface thereof when the elevator car passes the cleaning jig for an elevator guide device.Type: GrantFiled: August 10, 2011Date of Patent: February 17, 2015Assignee: Toshiba Elevator Kabushiki KaishaInventor: Makoto Yokobayashi
-
Patent number: 8794388Abstract: According to one embodiment, an elevator group control apparatus performs group control of operations of cars. The apparatus includes a power consumption calculation unit that calculates power consumption when each of the cars is run according to the operation curve on the basis of object data stored in the object data storage unit and an operation curve created by the operation curve creation unit, a distributed waiting controller that sets a car in a waiting state among the cars as a distributed waiting target car and outputs a distributed waiting instruction to move the target car to a distributed waiting floor, and a distribution instruction controller that obtains, from the power consumption calculation unit, power consumption when the distributed waiting target car is moved to the distributed waiting floor and, on the basis of the power consumption, permits or inhibits a distributed waiting instruction output from the distributed waiting controller.Type: GrantFiled: August 17, 2011Date of Patent: August 5, 2014Assignee: Toshiba Elevator Kabushiki KaishaInventor: Yoshihiro Takeda
-
Publication number: 20140131141Abstract: The elevator operation control method according to the embodiment estimate the amount of shake of a long object which moves accompanying lifting and lowering of a passenger cage by way of simulation based on the amount of shake of a building in which an elevator is installed and current position information of the passenger cage of the elevator. The elevator operation control method change every second a physical model of the simulation according to the position of the running passenger cage, and simulate in real time the amount of shake of the long object from a current amount of shake of the building and position information of the running passenger cage. The elevator operation control method compare the amount of shake of the long object calculated by the simulation and a threshold, and perform a control operation according to the result.Type: ApplicationFiled: November 8, 2013Publication date: May 15, 2014Applicant: TOSHIBA ELEVATOR KABUSHIKI KAISHAInventor: KAZUHIRO TANAKA
-
Patent number: 8662256Abstract: According to one embodiment, a response time calculation unit calculates a response time of each of the cars required when the car stop call is assigned to the car. An assignment control unit assigns the car stop call to the optimum car, based on the response time of each of the cars. A car load calculation unit calculates a load value of each car at the time when each car starts from a registration floor of the car stop call after responding to the call. A boarding possibility determination unit determines, for each car, whether the user can get on the car or not, by comparing the load value with a preset capacity value. A registration control unit performs control to assign the car stop call, including a second and later responses to the registration floor of the car stop call, based on a determination result of the boarding possibility.Type: GrantFiled: February 15, 2011Date of Patent: March 4, 2014Assignee: Toshiba Elevator Kabushiki KaishaInventor: Norimasa Asano
-
Patent number: 8342293Abstract: A guide apparatus includes a pair of guide rails, magnet units, pedestals, a sensor unit, a magnetic guide control apparatus as a control unit, and projected parts. The magnet unit includes electromagnets and permanent magnets and magnetic poles thereof are opposed to a blade of the guide rail from three directions with a gap. The projected parts are formed with side parts of a tip part of a central magnetic pole opposite to a tip surface of the blade of the guide rail among the magnetic poles of the magnet unit being brought closer to the guide rail than a center section thereof.Type: GrantFiled: August 20, 2010Date of Patent: January 1, 2013Assignee: Toshiba Elevator Kabushiki KaishaInventor: Hiroaki Ito
-
Patent number: 8264311Abstract: A magnet unit includes a first magnetic pole (7a), a second magnetic pole (7b) and a third magnetic pole (7c) at a center between the first magnetic pole (7a) and the second magnetic pole (7b), providing an E-shaped configuration. In the magnet unit, a first magnet is defined between the first magnetic pole (7a) and the third magnetic pole (7c) by connecting two electromagnets (71aa, 73aa) with each other through a permanent magnet (72a), while a second magnet is defined between the second magnetic pole (7b) and the third magnetic pole (7c) by connecting two electromagnets (71ba, 73ba) with each other through a permanent magnet (72b). With this configuration, it is possible to reduce a deviation in the length of respective magnetic paths from the permanent magnets (72a, 72b) up to their respective magnetic poles. By controlling exciting currents to the respective electromagnets (71aa, 73aa, 71ba, 73ba), it is also possible to adjust fluxes (or flux density) in respective directions x, y individually.Type: GrantFiled: March 18, 2011Date of Patent: September 11, 2012Assignee: Toshiba Elevator Kabushiki KaishaInventors: Hiroaki Ito, Mimpei Morishita, Yosuke Tonami
-
Patent number: 8251185Abstract: According to one embodiment, there is provided an elevator rescue operation system to be used in a building in which a plurality of elevators are installed in parallel. The system includes a disaster detection unit configured to detect, when a disaster has occurred in the building, an occurrence site of the disaster, a priority response floor setting unit configured to set a priority response floor on the basis of the disaster occurrence site detected by the disaster detection unit, and a rescue operation unit configured to cause a corresponding elevator for a rescue operation among the plurality of elevators to respond to the priority response floor set by the priority response floor setting unit, thereby carrying out a through-car operation up to a refuge floor.Type: GrantFiled: January 26, 2011Date of Patent: August 28, 2012Assignee: Toshiba Elevator Kabushiki KaishaInventor: Yoshiaki Manabe
-
Patent number: 8172041Abstract: A machineroom-less elevator in which a counterweight is vertically moved behind a cage, with the cage and the counterweight being suspended in a jig back manner through a first and second diverting sheaves. In this machineroom-less elevator, a sufficiently large vertical stroke of the counterweight can be secured, while a durability of a hoist rope is improved. In addition, since no tensile difference is generated in respective parts of the hoist rope, vertical vibrations of the cage are prevented when the cage restarts a vertical movement. A traction sheave is disposed on one of right and left sidewalls of an elevator shaft. A first diverting sheave is disposed below and sufficiently apart from the traction sheave, and a second diverting sheave is disposed on a top of a rear wall of the elevator shaft.Type: GrantFiled: June 1, 2004Date of Patent: May 8, 2012Assignee: Toshiba Elevator Kabushiki KaishaInventors: Kan Kawasaki, Ikuo Asami, Takashi Ishii, Shun Fujimura, Satoshi Takasawa
-
Patent number: 8109368Abstract: According to one embodiment, there is provided an elevator rescue operation system to be used in a building in which a plurality of elevators are installed in parallel. The system includes a disaster detection unit configured to detect, when a disaster has occurred in the building, an occurrence site of the disaster, a zone setting unit configured to set a plurality of zones to which all the elevators are caused to respond on the basis of the disaster occurrence site detected by the disaster detection unit, and a rescue operation unit configured to individually cause an elevator to respond to floors in each zone set by the zone setting unit, the elevator being corresponding to the zone, thereby carrying out a through-car operation up to a refuge floor.Type: GrantFiled: January 26, 2011Date of Patent: February 7, 2012Assignee: Toshiba Elevator Kabushiki KaishaInventor: Yoshiaki Manabe
-
Patent number: 8096388Abstract: An elevator system has a data receiving unit that receives service state data transmitted from a control device of an elevator. A pulse modulation unit separates the service state data received by the data receiving unit into first information data and second information data, pulse-modulates the first information data by using the second information data, and creates an LED blinking pattern. An LED drive unit drives a visible light LED placed in a cage of the elevator or on a platform of the elevator in response to the LED blinking pattern created by the pulse modulation unit.Type: GrantFiled: March 14, 2007Date of Patent: January 17, 2012Assignee: Toshiba Elevator Kabushiki KaishaInventor: Kuniko Nakamura
-
Patent number: 8091686Abstract: A signal correction arithmetic unit is provided in a control apparatus to control a magnetic force of a magnetic guide unit. The signal correction arithmetic unit differentiates detection signals of two gap sensors, and integrates and outputs a differential signal with a smallest absolute value. The output signal is used for magnetic control.Type: GrantFiled: December 31, 2008Date of Patent: January 10, 2012Assignee: Toshiba Elevator Kabushiki KaishaInventor: Hiroaki Ito
-
Patent number: 8083048Abstract: A footstep guide rail (3) (rail body 3a) is arranged so that a level H of a horizontal surface is set at the position obtained by adding a designated offset ? to a tangential line L of a drive sprocket (9) and the footstep guide rail (3) is provided, at its one end on an introductory side of the drive sprocket (9), with a curved part (13). At a reference position closest to the drive sprocket (9), the horizontal surface of the footstep guide rail (3) is changed to the curved part (13). Consequently, it is possible to absorb velocity unevenness of one footstep roller approaching the drive sprocket (9).Type: GrantFiled: December 1, 2006Date of Patent: December 27, 2011Assignee: Toshiba Elevator Kabushiki KaishaInventors: Yoshinobu Ishikawa, Tadashi Munakata, Yoshio Ogimura, Nobuhiko Teshima, Shigeo Nakagaki, Hitoshi Kawamoto, Kenichi Fujii, Yoshifumi Ikeda, Kazuhisa Hara, Takayuki Kikuchi
-
Patent number: 8002086Abstract: A magnetic guide apparatus includes at least two gap sensors which are disposed with a predetermined interval in a direction of movement of a moving body, and detect a gap between a magnet unit and a guide rail, a signal correction unit which determines variation amounts of detection signals which are output from the gap sensors, relatively varies weight coefficients for the respective detection signals on the basis of the variation amounts, and outputs, as a signal for magnetic control, a signal which is obtained by adding the detection signals which are multiplied by the weight coefficients, and a control unit which controls the magnetic force of the magnet unit on the basis of the signal for magnetic control, which is output from the signal correction unit.Type: GrantFiled: August 28, 2008Date of Patent: August 23, 2011Assignee: Toshiba Elevator Kabushiki KaishaInventor: Hiroaki Ito
-
Patent number: 7958972Abstract: A sealing device for an elevator door includes a doorway member, doors, a movable member, a push-down mechanism and a sealing mechanism. The doorway member is provided for a gate. The doors open or close along the doorway member. The movable member is set horizontally and provided to be movable in a vertical direction in the doorway member, and it is urged upwards by an urging unit. The push-down mechanism pushes down the movable member against the force of the urging unit just before the doors are closed. The sealing mechanism is kept non-contact with the doors while they are moving, and seals the gap between the doors and the doorway member as it is brought into contact with upper section of the doors when the movable member is pushed down by the push-down mechanism.Type: GrantFiled: March 20, 2009Date of Patent: June 14, 2011Assignee: Toshiba Elevator Kabushiki KaishaInventors: Shin Murakami, Toru Kinoshita
-
Patent number: 7954604Abstract: An elevator speed governor for an elevator in which an elevator car (1) is attached to one end of a rope (2) having a counterweight (3) on the other end and driven by a motor (5) via the rope (2) comprises a motor current detector (15) that detects a motor current of the motor (5), a target speed determining section (11) that determines a target speed in accordance with the motor current detected by the motor current detector (15), and a motor control section (13) that controls the motor (5) so that the elevator car (1) moves at the target speed determined by the target speed determining section (11).Type: GrantFiled: July 6, 2006Date of Patent: June 7, 2011Assignee: Toshiba Elevator Kabushiki KaishaInventor: Koichi Mishima