EP0894761A1 - Begrenzungsschaltvorrichtung für Hydraulikaufzüge - Google Patents

Begrenzungsschaltvorrichtung für Hydraulikaufzüge Download PDF

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Publication number
EP0894761A1
EP0894761A1 EP98113446A EP98113446A EP0894761A1 EP 0894761 A1 EP0894761 A1 EP 0894761A1 EP 98113446 A EP98113446 A EP 98113446A EP 98113446 A EP98113446 A EP 98113446A EP 0894761 A1 EP0894761 A1 EP 0894761A1
Authority
EP
European Patent Office
Prior art keywords
relay coil
signal
elevator
elevator car
actuation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98113446A
Other languages
German (de)
English (en)
French (fr)
Inventor
Robert J. Koeppe
Ronald D. Singletary
Alan J. Raite
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
Original Assignee
Inventio AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Publication of EP0894761A1 publication Critical patent/EP0894761A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/46—Adaptations of switches or switchgear
    • B66B1/50—Adaptations of switches or switchgear with operating or control mechanisms mounted in the car or cage or in the lift well or hoistway

Definitions

  • the present invention relates generally to hydraulic lifts and in particular a limit switching device for Use in hydraulic elevator cabins.
  • Limit switches are commonly used for Hydraulic lifts in large numbers at every junction arranged the wall of the elevator shaft.
  • This Terminal limit switch assemblies make normal Stop connection, emergency connection delay and Limiting functions ready, as provided by a code be requested.
  • the number of switches used is depending on the arrangements of the elevator code that the Setup controls (such as A17.1, CSA, or local) and from the cabin speed. For example, a maximum of seven switches required for some facilities be and a minimum of four switches for others Facilities.
  • the switches in the elevator shaft are on respective connection points and are connected by a of the cabin-mounted cam actuated. Every switch has about a specific function and operational sequence.
  • DE 2 262 396 shows cabin-mounted Position indicators by a cam or a Magnets are operated, with different levels detected be used for different operating modes become.
  • DE 37 04 291 shows a hydraulic elevator car with limit switches mounted thereon, the switches due to shaft-mounted magnets for the detection of floors be operated.
  • the present invention relates to a device for Generation of function signals for an elevator control for controlling an elevator car at connection points in one Building.
  • the device comprises: an upper cam and one lower cam for mounting on a wall in one Elevator shaft at a top stop or one lowest stop; an upper switch and one lower switch for mounting on an elevator car, which itself moved in the elevator shaft, and a latch circuit with inputs for connection to an elevator assigned Control to provide an upward signal received, which is an upward direction of movement represents the elevator car in the elevator shaft, and a Lowering signal, which is a downward direction Direction of movement of the elevator car in the elevator shaft represents, the latch circuit with the upper Switch and the lower switch is connected, and wherein the locking circuit outputs for connection to the Has control for generating function signals, whereby when the upper and lower cams on the wall of the Elevator shaft at the top stop or the lowest stop are mounted and the top and lower switch on the elevator car in the vertical direction in spaced relationship are mounted, the Locking circuit on the riser signal and the Actuation of the upper switch by the
  • Limit switches can include for actuation purposes: Delayed ascent (USD), first emergency stop delay (ETS1), second emergency stop delay (ETS2) and climb limitation (UL). These switches can be closed at the bottom stop Actuating purposes include: lowering delay (DSD), third Emergency stop delay (ETS3) and lowering limit (DL).
  • USD Delayed ascent
  • ETS1 first emergency stop delay
  • ETS2 second emergency stop delay
  • UL climb limitation
  • Actuating purposes include: lowering delay (DSD), third Emergency stop delay (ETS3) and lowering limit (DL).
  • the invention is a single limit switch arrangement mounted on an elevator car. There is a cam in that Shaft arranged at every junction. So that is Limit switch arrangement easier to install and the total number of cables to the elevator control too lead is reduced.
  • the climb delay (USD) and the lowering limit (DL) functions are in one Switches using the relays for the High speed rise / lowering valve coils grouped to determine the correct switching function (USD or DL).
  • the Lowering Delay (DSD) and Rise Limiting (UL) functions are similarly in a single switch combined.
  • the present invention uses a system of electrical interlocks, which reduce the Number of limit switches required, and to a maximum of five and a minimum of two.
  • the USD and DL functions are in one switch summarized and the DSD and UL functions can be combined in one other switches can be summarized.
  • a first obstacle consists of knowing in which direction the cabin is heading moves so that the correct function is selected, and that second obstacle is multiple switching or - Voltages through the same choke or switching point, namely to operate the limit switch. Both of these Obstacles are overcome by using an electrical Interlock overcome.
  • the elevator car can only be in the climbing direction move when the high and / or Low speed "rise” circuits of the Hydraulic control valves are open.
  • a Hydraulic line breakage can affect the elevator car just move in the downward direction, if the high and / or Low-speed "lower" circuits or circuits of the Control valves are open.
  • the interlock circuit defines which function (USD or DL, UL or DSD) the Operate the limit switch.
  • a second purpose of Interlock circuit is the two functions of isolate each limit switch, making it possible multiple circuits and voltages across the same Limit switch.
  • a hydraulic elevator car 1 which in a substantially vertical direction in one Elevator shaft 2 is movable.
  • An upper (climb) cam 3 and a lower (lower) cam 4 are on a wall of the Elevator shaft 2 adjacent to a movement path of the car 1 mounted.
  • the upper cam 3 is on a first one Shaft wall section 2a mounted at the upper stop and the lower cam 4 on a second shaft wall section 2b at the bottom stop.
  • a variety of normally closed ones Limit switch is on an outside wall of the cabin 1 arranged for actuation by cams 3 and 4.
  • a first uppermost switch 5 is opposite to cabin 1 mounted at an upper end thereof and fulfills the functions the climb delay (USD) and the lower limit (DL).
  • a second switch 6 is on the cabin 1 in a predetermined Distance installed below the first switch 5 and met the function of the first emergency stop delay (ETS1).
  • a third switch 7 is on the cabin 1 with predetermined Distance mounted below the second switch 6 and fulfills the function of the second emergency stop delay (ETS2).
  • a fourth or bottom switch 8 is on the Cabin 1, adjacent to a lower end thereof, assembled and fulfills the functions of lowering delay (DSD) and Rise limitation (UL).
  • a fifth switch 9 is on the Cabin 1 at a predetermined distance above the fourth Switch 8 mounted and fulfills the function of the third Emergency stop delay (ETS3).
  • ETS3 Emergency stop delay
  • a latch circuit 10 is shown to the Define functions by switches 5 and 8 be fulfilled according to the invention.
  • the latch circuit 10 is connected to a power supply (not shown), and with the normally closed switches 5 and 8 via a connecting strip 11 with a variety of Connections 11a to 11n.
  • a current input line 12 is on a terminal 11i of the terminal strip 11 for maintenance electrical voltage with positive polarity any suitable voltage (+ V) connected, one Current return line 13 connected to the terminal 11n is.
  • Terminal 11i is via a power distribution line 14 in the circuit 10 with a pair of terminals 11h and 11j connected.
  • the connection 11h is via the first switch 5 with a terminal 11g and the terminal 11j is over the fourth switch 8 connected to a terminal 11k. Consequently the electrical current and the state of the switches 5 and 8, namely open or closed, in the Locking circuit 10 at the terminals 11g and 11k entered.
  • a pair of normally open relay contacts 15 one lower limit (KLL) relay is between terminal 11a and a connection 11b connected, the connections with the elevator control (not shown) are connected.
  • the Contacts 15 are through a lower limit (KLL) relay coil 16 controlled, one with the ground connection 11n connected connecting strap and another connecting strap has that with the connector 11g via a normally closed step relay initial contact set (UPS) 17 connected is.
  • An anode of an isolation diode 18 is connected to the Contact set 17 connected, wherein a cathode with the coil 16th connected is.
  • the connection of the relay coil connection tab with the diode cathode is over with a + V voltage connection a normally closed step relay second contact set 19 and a pair of normally open KBPD relay contacts 20 connected.
  • a diode 21 is related to the Relay coil 16 switched and opposite to the + V power supply polarized to dissolve the collapsing field, which occurs when the switch 5 is opened.
  • a Resistor 22 and a light emitting diode 23 are connected in series with respect to the relay coil 16 by one provide visual indication that current is flowing through the Relay coil flows.
  • a normally closed first Sink relay contact set (DNS) 24 is between port 11g and a terminal 11f switched. Furthermore is a first voltage divider resistor network 25 between the Terminal 11g and system ground switched to one to generate graded signal at a connection A.
  • a pair of normally open relay contacts 26 one upper limit (KUL) relay is between one connector 11c and a connection 11d connected, the connections are connected to the elevator control (not shown).
  • the Contacts 26 are through an upper limit (KUL) relay coil 27 controlled, one with the ground connection 11n connected connecting tab and another with the Port 11k through a normally closed second Sink relay contact set (DNS) 28 connected connection plate having.
  • An anode of an isolation diode 29 is connected to the Contact set 28 switched, a cathode with the coil 27 is connected.
  • the connection of the Relay coil connection tab and the diode cathode is with a + V power connector through one normally closed third step relay contact set 30 and a pair connected by normally open KBPU relay contacts 31.
  • a diode 32 is connected with respect to the relay coil 27 and polarized opposite to the + V power supply to that coincident field to dissipate when the switch 8 is opened.
  • a resistor 33 and a light emitting Diode 34 are in series with respect to relay coil 27 to provide a visual indication that Current flows through the relay coil.
  • One usually closed third step relay contact set (UPS) 35 is connected between a terminal 11e and the terminal 11k.
  • UPS third step relay contact set
  • a sink direction relay coil (DNS) 37 is between the connection 11n and a connection 11l for receiving or Record a movement direction signal in the form of electrical current during the lowering movement of the cabin 1 switched.
  • a diode 38 is with respect to the relay coil 37 switched and polarized opposite to the + V power supply, to dissipate the coincident field when the current is switched off.
  • a resistor 39 and one light emitting diode 40 are with respect to the relay coil 37 placed in series to provide a visual display to provide that current flows through the relay coil.
  • a Rise Direction Relay Coil (UPS) 41 is between the Port 11n and a port 11m switched to one Direction of movement signal in the form of electrical current to get during a climbing movement of the cabin 1.
  • a Diode 42 is connected with respect to the relay coil 41 and polarized opposite to the + V power supply to that coincident field to dissipate when the current is switched off.
  • a resistor 43 and one light emitting diode 44 are in series with respect to the Relay coil 41 switched to a visual display to provide that current flows through the relay coil.
  • the locking circuit 10 is continued in Figure 3, the connections A and B with inputs of a Single stack logic blocks 45 are connected.
  • Logic block 45 has a BPU output that is gated with a first field effect transistor (FET) 46 is connected.
  • FET field effect transistor
  • KBPU relay coil
  • a diode 48 is connected with respect to the relay coil 47 and polarized opposite to the + V power supply to that coincident field to dissipate when the power supply is interrupted.
  • a resistor 49 and one light emitting diode 50 are with respect to the relay coil 47 placed in series to provide a visual display to provide that current flows through the relay coil.
  • Logic block 45 also has a BPD output connected to a gate of a second FET 51 is connected.
  • the FET 51 and a relay coil (KBPD) 52 are between the + V power supply terminal and the system ground connected in series.
  • a diode 53 is connected with respect to the relay coil 52 and polarized opposite to the + V power supply to that coincident field to dissipate when the power supply is interrupted.
  • a resistor 54 and one light emitting diode 55 are connected in series with respect relay coil 52 to provide a visual indication that current flows through the relay coil.
  • the riser valves (not shown) for the Elevator hydraulic circuit are switched by the KUL relay 27 and whose contacts 26 controlled.
  • Control signals from the elevator control either activate a flush-mounted relay (not shown) and via the connection 11m the UPS relay 41 or activate a DN relay (not shown) and via the Port 11l the DNS relay 37.
  • the normally closed contact sets 17, 19, 24, 28, 30 and 35 act as control contacts for multiplexing the input signals from the first switch (USD / DL) 5 and the fourth switch (DSD / UL) 8.
  • a direction of climb is determined by the controller initiated, which generates a signal at the terminal 11m to to supply the relay coil (UPS) 41 with power, the normally closed contact sets 17, 19 and 35 be opened.
  • the USD / DL switch 5 leads one High speed relay circuit over the normally closed contact set 24 of the DNS relay current too.
  • the DSD / UL switch 8 can only current the KUL relay coil 27 over the normally closed Contact set 28 of the DNS relay and the isolation diode 29 respectively.
  • a direction of lowering is determined by the control initiated, which generates a signal at the terminal 11l to to power the relay coil (DNS) 37 and the normally closed contact sets 24, 28 and 30 too to open.
  • the DSD / UL switch 8 leads High speed relay circuit over the normally closed contact set 35 of the UPS relay current.
  • the USD / DL switch 5 can only the KLL relay coil 16 current over the normally closed Contact set 17 of the UPS relay and the isolation diode 18 respectively.
  • Logic block 45 shown in FIG. 3 generates a bypass open (BPU) signal (lower limit) and a bypass lower (BPD) signal (upper limit) using the graded voltages of switches 5 and 8, each are connected to the A and B connections.
  • the BPU signal turns on the FET 46 to close the KBPU relay coil 47 activate and close the KBPU contacts 31, whereby Current to the KUL relay coil 27 through the normally closed contact set 30 is created.
  • the BPD signal turns on the FET 51 to close the KBPD relay coil 52 activate and close the KBPD contacts 20, whereby Current to the KLL relay coil 16 through the normally closed contact set 19 is created.
  • the Isolation diodes 18 and 29 isolate the inputs of the Logic block 45 regarding the signals that are generated when the KBPD contacts 20 and the KBPU contacts 31 are closed.
  • the states of the input signals of switches 5 and 8 and the Bypass signals BPU and BPD, generated by the Single stack logic block 45 are in the table in Figure 4 specified.
  • the USD / DL switch 5 and the DSD / UL switch 8 generate five different input signal combinations at connections A and B. At the upper limit and the lower limit, both switches 5 and 8 are open.
  • the correct BPU and BPD output signals are under Generated using logic block 45 to detect which of the switches first switches from closed to open changed. If the USD / DL switch 5 is opened first, the cabin must be at the upper end of shaft 2, the BPD signal being generated by logic block 45. If the DSD / UL switch 8 is opened first, the Cabin are located on the bottom of the shaft 2, the BPU signal is generated by logic block 45.
  • logic block 45 will prevent any movement. This operation results from that in the table of FIG. 5 shown information, in which also the states of the rising and lowering relays as well as the KUL and KLL relay coils are shown.
  • the present invention relates to a Device for generating function signals for a Elevator control for controlling elevator car 1 Junction points in a building.
  • the device includes: the upper cam 3 and lower cam 4 for mounting on one Wall 2a and 2b in the elevator shaft 2, each on a top stop and a bottom stop; the upper switch 5 and the lower switch 8 for mounting on the elevator car moving in the elevator shaft; and the locking circuit 10 with inputs 11m, 11l for Connection of a controller assigned to the elevator in order to get a rise direction signal that goes up for a representative direction of movement of the elevator car representative is, as well as a lowering direction signal, which for a Downward direction of movement of the elevator car in the Elevator shaft is representative, the Locking circuit with the upper switch and the lower switch is connected, and being the Interlock circuit outputs 11a-11f for connection with the controller has to generate function signals, whereby when the upper and lower cams on the wall of the Elevator shaft at the top stop and the bottom stop are mounted, and if the top and lower switch on the controller

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Elevator Control (AREA)
EP98113446A 1997-07-28 1998-07-18 Begrenzungsschaltvorrichtung für Hydraulikaufzüge Withdrawn EP0894761A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/901,094 US5864103A (en) 1997-07-28 1997-07-28 Limit switch apparatus for hydraulic elevators
US901094 1997-07-28

Publications (1)

Publication Number Publication Date
EP0894761A1 true EP0894761A1 (de) 1999-02-03

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ID=25413589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98113446A Withdrawn EP0894761A1 (de) 1997-07-28 1998-07-18 Begrenzungsschaltvorrichtung für Hydraulikaufzüge

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US (1) US5864103A (ja)
EP (1) EP0894761A1 (ja)
JP (1) JPH1179577A (ja)
AU (1) AU743655B2 (ja)
BR (1) BR9802579A (ja)
CA (1) CA2244386A1 (ja)
NZ (1) NZ331020A (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020136624A1 (en) * 2001-03-22 2002-09-26 Karapet Ablabutyan Lift device with variable speed actuation
US20050281651A1 (en) * 2004-05-06 2005-12-22 David Simpson Hook lift hoist adaptable for use with containers of variabile length
CN101648663B (zh) * 2004-05-31 2011-09-14 三菱电机株式会社 电梯装置
CN1871173B (zh) * 2004-05-31 2010-06-23 三菱电机株式会社 电梯装置
JP2016216240A (ja) * 2015-05-25 2016-12-22 東芝エレベータ株式会社 エレベータ
US11279592B2 (en) * 2016-05-17 2022-03-22 Mitsubishi Electric Corporation Elevator system
CN109573791B (zh) * 2018-12-19 2023-05-30 宁波力隆机电股份有限公司 一种结构简单的电梯及其控制方法
CN110422713A (zh) * 2019-09-05 2019-11-08 苏州莱茵电梯股份有限公司 一种电梯减行程功能安全电路
US11447367B2 (en) 2019-09-12 2022-09-20 Tk Elevator Corporation Magnetic tape stabilizing systems
CN111792486A (zh) * 2020-07-02 2020-10-20 湖南云感科技有限公司 基于大数据平台的一键简易电梯紧急求援方法及求救系统

Citations (5)

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Publication number Priority date Publication date Assignee Title
US4775032A (en) * 1987-04-17 1988-10-04 The Peelle Company Elevator control
US5000129A (en) 1989-06-30 1991-03-19 Mazda Motor Corporation Intake system for internal combustion engine
US5133308A (en) 1990-05-28 1992-07-28 Mazda Motor Corporation Intake system for engine
JPH06211448A (ja) * 1993-01-14 1994-08-02 Hitachi Ltd エレベータの制御装置
US5590629A (en) 1995-09-14 1997-01-07 Caterpillar Inc. Spark ignition system of an internal combustion engine

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US1169722A (en) * 1912-09-20 1916-01-25 Standard Plunger Elevator Company Automatic stop for elevators.
DE2262396A1 (de) * 1972-12-15 1974-06-20 Klaus Boniek Schachtinformationsgeber fuer aufzugssteuerungen
JPS598626B2 (ja) * 1975-11-14 1984-02-25 三菱電機株式会社 エレベ−タノイチケンシユツソウチ
JPS5813469B2 (ja) * 1976-03-12 1983-03-14 三菱電機株式会社 エレベ−タ用位置検出装置
US4787481A (en) * 1987-01-20 1988-11-29 Delaware Capital Formation, Inc. Hydraulic elevator having microprocessor-based, distributed control system
DE3704291A1 (de) * 1987-02-12 1988-08-25 Mayer Foerdertech Walter Gueteraufzug
JPH04350075A (ja) * 1991-05-29 1992-12-04 Hitachi Ltd エレベータの端階停止装置
JP3199448B2 (ja) * 1992-05-22 2001-08-20 株式会社日立製作所 エレベーターの端階安全装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4775032A (en) * 1987-04-17 1988-10-04 The Peelle Company Elevator control
US5000129A (en) 1989-06-30 1991-03-19 Mazda Motor Corporation Intake system for internal combustion engine
US5133308A (en) 1990-05-28 1992-07-28 Mazda Motor Corporation Intake system for engine
JPH06211448A (ja) * 1993-01-14 1994-08-02 Hitachi Ltd エレベータの制御装置
US5590629A (en) 1995-09-14 1997-01-07 Caterpillar Inc. Spark ignition system of an internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 576 (M - 1697) 4 November 1994 (1994-11-04) *

Also Published As

Publication number Publication date
AU743655B2 (en) 2002-01-31
AU7852598A (en) 1999-02-04
CA2244386A1 (en) 1999-01-28
NZ331020A (en) 2000-01-28
BR9802579A (pt) 2000-12-19
US5864103A (en) 1999-01-26
JPH1179577A (ja) 1999-03-23

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