EP0776858A2 - Verrouillage sur une plateforme d'une cabine d'ascenseur se déplaçant horizontalement - Google Patents

Verrouillage sur une plateforme d'une cabine d'ascenseur se déplaçant horizontalement Download PDF

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Publication number
EP0776858A2
EP0776858A2 EP96308654A EP96308654A EP0776858A2 EP 0776858 A2 EP0776858 A2 EP 0776858A2 EP 96308654 A EP96308654 A EP 96308654A EP 96308654 A EP96308654 A EP 96308654A EP 0776858 A2 EP0776858 A2 EP 0776858A2
Authority
EP
European Patent Office
Prior art keywords
cab
lock
car frame
bolt
strike
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Withdrawn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
EP96308654A
Other languages
German (de)
English (en)
Other versions
EP0776858A3 (fr
Inventor
Frederick H. Barker
Joseph Bittar
Paul Bennett
Anthony Cooney
Richard Charles Mccarthy
Bruce A. Powell
Samuel C. Wan
John Kennedy Salmon
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.)
Otis Elevator Co
Original Assignee
Otis Elevator Co
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 Otis Elevator Co filed Critical Otis Elevator Co
Publication of EP0776858A2 publication Critical patent/EP0776858A2/fr
Publication of EP0776858A3 publication Critical patent/EP0776858A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/0206—Car frames

Definitions

  • This invention relates to positively locking an elevator cab to an elevator platform, such as a car frame, a landing or a carrier.
  • an elevator cab may be moved in a first car frame in a first hoistway, from the ground floor up to a transfer floor, moved horizontally into a second elevator car frame in a second hoistway, and moved therein upwardly in the building and so forth. Since the loading and unloading of passengers takes considerable time, in contrast with high speed express runs of elevators, another way to increase hoistway utilization, thereby decreasing core requirements, includes moving the elevator cab out of the hoistway for unloading and loading, as described in our European patent application claiming priority of U.S. patent application Serial No. 08/565,606 and filed contemporaneously herewith.
  • An object of the invention is to positively lock a horizontally moveable elevator cab to an elevator platform, which may be a vertically moving car frame, a landing, or a horizontally moveable carrier. Another object is to provide such a lock which positively locks the cab against relative vertical motion when it is on an elevator platform.
  • a cab lock comprising a strike having a bore therethrough and a lock bolt operable to move into said strike, extends between a horizontally moveable elevator cab and an elevator platform, such as a car frame.
  • the strike has a horizontal bore and a lock bolt is moveable thereto horizontally, thereby firmly locking the cab against relative vertical motion when it is on the car frame.
  • the lock bolt may be disposed on the platform and the strike may be disposed on the cab, or the strike may be disposed on the platform and the lock bolt disposed on the cab.
  • the lock may extend between the bottom of the cab and the platform, or it may extend between the top of the cab and the platform.
  • a cab/car lock for locking a horizontally moveable elevator cab positively to an elevator platform includes a bolt which is extended into a strike by means of a spring, so as to remain in the locked position even with loss of power, and a solenoid is used to unlock the cab from the car by pulling the bolt out of the strike against the action of the spring.
  • the platform may be a landing in a building or a cab carrier, as well as a car frame.
  • Fig. 1 is a simplified front elevation view of a horizontally moveable elevator cab in a car frame with cab locks according to the invention.
  • Fig. 2 is a partial, simplified, partially sectioned side elevation view of a cab lock in accordance with the invention.
  • Fig. 3 is a stylized, simplified side elevation view of the elevator frame of Fig. 1 with the cab removed therefrom to a landing which also has cab locks in accordance with the present invention.
  • Fig. 4 is a simplified front elevation view of an elevator car frame with cab locks positioned in the center of the cab.
  • Fig. 5 is a circuit diagram of bipolar solenoid energization which may be used in the present invention.
  • Fig. 6 is a circuit diagram of switches which may be incorporated in the present invention for safety and control purposes.
  • Fig. 7 is a simplified front elevation view of a portion of a horizontally moveable elevator cab in a car frame having a cab lock working with a lug atop a cab.
  • Fig. 8 is a simplified front elevation view of a portion of a horizontally moveable elevator cab in a car frame having a lug and a cab lock disposed atop a cab.
  • an elevator car frame 10 includes a plank 11, a crosshead 12 that supports roping 13, a stile 14, 15 on each side of the frame, and a car platform 16.
  • a horizontally moveable cab 17 has doors 18, and wheels or rollers 19 to allow it to be moved.
  • the car frame 10 may have braces 20, 21 between the car platform 16 and the stile 14 (along with the stile 15, not shown) for stability.
  • the braces 20, 21 are omitted from Fig. 1 for clarity.
  • a pair of cab locks 25, 26 are shown in the operative position, locking the cab 17 to the car.
  • each lock 25 is shown working with a strike, such as a lug 32 securely fixed to the horizontally moveable elevator cab 17.
  • a strike such as a lug 32 securely fixed to the horizontally moveable elevator cab 17.
  • Each lug 32 has a bore 33 disposed therein to form a lock strike which receives a lock bolt 35.
  • the bore 33 and the working end 36 of the lock bolt 35 may be tapered so as to facilitate mating the bolt 35 with the hole 33 despite minor variations in positioning of the cab 17 on the car frame 10, while also forming a fairly tight fit.
  • the other end 37 of the bolt 35 may also be tapered to serve as a cam for actuating a pair of spring loaded, cam operated switches 41, 42.
  • the bolt 35 is permanently magnetized, such as with the end 37 comprising a north magnetic pole and the end 36 comprising a south magnetic pole (or vice versa).
  • a solenoid 43 may have current flow in one direction to drive the bolt into the locked position (as shown in Figs. 1 and 2) and current flow in the opposite direction to cause the bolt to withdraw (to the left in Fig. 2), into a fully unlocked position where the end 36 is totally clear of the lug 32, against the force of a compression spring 45 acting between a flange 46 on the bolt 35 and a lug 47 disposed on the car platform 16.
  • the solenoid 43 is disposed rigidly to the car platform 16 by a suitable bracket 44.
  • the invention also includes a lug 48 which may have a tapered hole 49 to form a second strike affixed to the car platform 16.
  • Fig. 3 is a quasi-sectional view taken along the surface of a near wall (not shown) of a landing 70. Rigidly affixed to that wall are a pair of locks, only lock 25a being shown, which are in a position similar to that of the locks 25, 26 on the car platform 16, so as to permit locking the cab onto a landing.
  • the locks may be identical to those used on the car platform 16. As seen in Fig. 3, the locks 25, 26 may be positioned on the platform 16 between the stile 14 and the stile 15 (not seen in Fig. 3).
  • the locks 25 and 26 may be positioned other than between the stiles, such as the lock 25 being at the front left of the car frame 10 and the lock 26 being at the right rear of the car frame 10, as viewed in Fig. 1.
  • the locks 25 (and 26) may be mounted at the front and rear center of the platform 16.
  • other combinations may be used, preferably including at least two locks in each case so as to stabilize the position of the car.
  • a bridge switching circuit 50 allows providing current in either of two directions to the solenoid 37 and a solenoid 51 of an additional cab lock, such as the cab lock 26.
  • a "set car/cab lock" signal is provided on a line 52, it will operate a pair of switches 53, 54 so that current will flow from a positive source 55 through the switch 53, the coils 37, 51, and the switch 54, back to a negative voltage source 56.
  • a latch 61 is set, the output of which operates a pair of switches 62, 63 so that current flows through the switch 62, through the coils 43, 51 in the opposite direction, through the switch 63 and back to the negative source 56.
  • the latch 61 will hold the coil in a reset or unlocked position (left in Figs. 1 and 2) against the spring 45 until the latch 61 is reset by a signal on the line 52. Once the lock is locked, it will be held in the locked position by the spring 45 in the embodiment shown.
  • the switches 53, 54, 62, 63 may be field effect transistor switches, or any other suitable type of switch.
  • the cam operated switches 41, 42 may be utilized for safety and control purposes by providing "cab/car lock locked” and "cab/car lock unlocked” signals on respective lines 66, 67 as shown in Fig. 6.
  • a normally closed contact 41a is closed only when the lock is fully locked as shown in Fig. 2, and the switch 41 is not actuated.
  • a normally closed contact 68a of another cab lock, such as the cab lock 26, is operated only when its bolt is to the right (Fig. 1) of the switch 42 sufficiently so that it is not actuated.
  • a normally open contact 42b is closed only when the bolt is sufficiently far to the left, as shown by the dotted lines 37a in Fig.
  • FIG. 5 depict circuitry for use with two cab locks (as in Fig. 1). If more cab locks are used, there will be more coils in parallel in Fig. 5 and more switches in series in Fig. 6.
  • FIG. 7 Another embodiment of the invention is shown in Fig. 7 in which a lug 32 is disposed to the canopy 73 of the cab 17 and the lock 25b is secured to the car frame by brackets 74.
  • a lock 25c includes a lug 32a disposed on the stile 14 and the solenoid 37 fastened to the canopy of the cab 17.
  • Switches similar to switches 41, 42, respectively, may be provided as described hereinbefore in the embodiments of Figs. 7 and 8. For simplicity, only one lock is shown in Figs. 4, 7 and 8 preferably, two locks, or more, will be used. Proximity sensors or other form of position detectors may be used in place of the cam operated switches 41, 42 in all of the prior embodiments.
  • a strike disposed on a surface may comprise a bore formed in a lug which is fastened to such surface, or it may comprise a bore formed in such surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Elevator Door Apparatuses (AREA)
  • Escalators And Moving Walkways (AREA)
  • Elevator Control (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP96308654A 1995-11-29 1996-11-29 Verrouillage sur une plateforme d'une cabine d'ascenseur se déplaçant horizontalement Withdrawn EP0776858A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56565895A 1995-11-29 1995-11-29
US565658 1995-11-29

Publications (2)

Publication Number Publication Date
EP0776858A2 true EP0776858A2 (fr) 1997-06-04
EP0776858A3 EP0776858A3 (fr) 1997-11-26

Family

ID=24259589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96308654A Withdrawn EP0776858A3 (fr) 1995-11-29 1996-11-29 Verrouillage sur une plateforme d'une cabine d'ascenseur se déplaçant horizontalement

Country Status (7)

Country Link
EP (1) EP0776858A3 (fr)
JP (1) JPH09165168A (fr)
KR (1) KR970026871A (fr)
CN (1) CN1157796A (fr)
AU (1) AU7190096A (fr)
CA (1) CA2189944A1 (fr)
ZA (1) ZA969388B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107445022A (zh) * 2017-09-01 2017-12-08 上海中奥房设电梯有限公司 一种凹式电梯
US10252885B2 (en) 2015-08-03 2019-04-09 Otis Elevator Company Ropeless elevator system guide rail assembly
WO2019115269A1 (fr) * 2017-12-12 2019-06-20 Thyssenkrupp Elevator Ag Unité de déplacement pour un système d'ascenseur

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101134547B (zh) * 2006-08-30 2010-12-15 上海三菱电梯有限公司 电梯轿厢固定装置
EP2070860A1 (fr) * 2007-12-11 2009-06-17 Inventio Ag Système d'ascenseur doté de cabines d'ascenseur mobiles verticalement et horizontalement
EP3763652A1 (fr) * 2019-07-12 2021-01-13 KONE Corporation Procédé et syst?me d'ascenseur
CN116812716A (zh) * 2023-07-27 2023-09-29 江苏蒙哥马利电梯有限公司 一种大载重货梯防倾斜安全装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI92812C (fi) * 1992-07-07 1995-01-10 Kone Oy Turvalaitejärjestely

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10252885B2 (en) 2015-08-03 2019-04-09 Otis Elevator Company Ropeless elevator system guide rail assembly
CN107445022A (zh) * 2017-09-01 2017-12-08 上海中奥房设电梯有限公司 一种凹式电梯
WO2019115269A1 (fr) * 2017-12-12 2019-06-20 Thyssenkrupp Elevator Ag Unité de déplacement pour un système d'ascenseur
CN111479768A (zh) * 2017-12-12 2020-07-31 蒂森克虏伯电梯创新与运营股份有限公司 用于电梯系统的行进单元
CN111479768B (zh) * 2017-12-12 2022-03-18 蒂森克虏伯电梯创新与运营股份有限公司 用于电梯系统的行进单元

Also Published As

Publication number Publication date
EP0776858A3 (fr) 1997-11-26
JPH09165168A (ja) 1997-06-24
AU7190096A (en) 1997-06-05
KR970026871A (ko) 1997-06-24
CA2189944A1 (fr) 1997-05-30
CN1157796A (zh) 1997-08-27
ZA969388B (en) 1997-06-02

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