IT1248792B - Circuito idraulico per ascensori, montacarichi e simili, con sicurezza intrinseca - Google Patents

Circuito idraulico per ascensori, montacarichi e simili, con sicurezza intrinseca

Info

Publication number
IT1248792B
IT1248792B ITMI911374A ITMI911374A IT1248792B IT 1248792 B IT1248792 B IT 1248792B IT MI911374 A ITMI911374 A IT MI911374A IT MI911374 A ITMI911374 A IT MI911374A IT 1248792 B IT1248792 B IT 1248792B
Authority
IT
Italy
Prior art keywords
lifts
circuit
valve
pressure
hydraulic circuit
Prior art date
Application number
ITMI911374A
Other languages
English (en)
Inventor
Angelo Martini
Original Assignee
Gmv Martini Spa
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 Gmv Martini Spa filed Critical Gmv Martini Spa
Priority to ITMI911374A priority Critical patent/IT1248792B/it
Publication of ITMI911374A0 publication Critical patent/ITMI911374A0/it
Priority to DE69207065T priority patent/DE69207065T2/de
Priority to DK92108202.0T priority patent/DK0514782T3/da
Priority to EP92108202A priority patent/EP0514782B1/en
Priority to AT92108202T priority patent/ATE132112T1/de
Priority to ES92108202T priority patent/ES2082272T3/es
Publication of ITMI911374A1 publication Critical patent/ITMI911374A1/it
Application granted granted Critical
Publication of IT1248792B publication Critical patent/IT1248792B/it
Priority to GR960400428T priority patent/GR3019026T3/el

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • 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
    • B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings
    • B66B1/405—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings for hydraulically actuated elevators

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Elevator Control (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

In un circuito idraulico per ascensori la valvola magnetica di avviamento è comandata elettricamente durante la discesa dell'impianto e non sostenta la valvola di sovrappressione che rimane chiusa in assenza di specifico comando. In caso di guasto, la valvola di sovrappressione si chiude a seguito del comando elettrico di fermata ed impedisce che la cabina termini in fossa per gravità. Una variante del circuito prevede che il segnale di pressione venga rilevato in una zona del circuito che si trova in pressione solo durante la salita dell'impianto. Ulteriore variante prevede l'adozione di una valvola atta a chiudere il passaggio del fluido in un settore del circuito ed a disattivare il funzionamento della valvola di pilotaggio nelle fasi statica e di discesa.Ulteriore variante prevede l'adozione di un pressostato atto ad inviare un segnale elettrico al quadro di comando in presenza di una pressione diversa da zero.
ITMI911374A 1991-05-20 1991-05-20 Circuito idraulico per ascensori, montacarichi e simili, con sicurezza intrinseca IT1248792B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ITMI911374A IT1248792B (it) 1991-05-20 1991-05-20 Circuito idraulico per ascensori, montacarichi e simili, con sicurezza intrinseca
DE69207065T DE69207065T2 (de) 1991-05-20 1992-05-14 Hydraulische Schaltung für Aufzüge und Lastaufzüge oder ähnliches
DK92108202.0T DK0514782T3 (da) 1991-05-20 1992-05-14 Hydraulisk kredsløb til passager- og godselevatorer og lignende
EP92108202A EP0514782B1 (en) 1991-05-20 1992-05-14 Hydraulic circuit for passenger and freight elevators and the like
AT92108202T ATE132112T1 (de) 1991-05-20 1992-05-14 Hydraulische schaltung für aufzüge und lastaufzüge oder ähnliches
ES92108202T ES2082272T3 (es) 1991-05-20 1992-05-14 Circuito hidraulico para elevadores de personas y de mercancias y similares.
GR960400428T GR3019026T3 (en) 1991-05-20 1996-02-20 Hydraulic circuit for passenger and freight elevators and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI911374A IT1248792B (it) 1991-05-20 1991-05-20 Circuito idraulico per ascensori, montacarichi e simili, con sicurezza intrinseca

Publications (3)

Publication Number Publication Date
ITMI911374A0 ITMI911374A0 (it) 1991-05-20
ITMI911374A1 ITMI911374A1 (it) 1992-11-20
IT1248792B true IT1248792B (it) 1995-01-30

Family

ID=11359931

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI911374A IT1248792B (it) 1991-05-20 1991-05-20 Circuito idraulico per ascensori, montacarichi e simili, con sicurezza intrinseca

Country Status (7)

Country Link
EP (1) EP0514782B1 (it)
AT (1) ATE132112T1 (it)
DE (1) DE69207065T2 (it)
DK (1) DK0514782T3 (it)
ES (1) ES2082272T3 (it)
GR (1) GR3019026T3 (it)
IT (1) IT1248792B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19545657A1 (de) * 1995-12-07 1997-06-12 Rexroth Mannesmann Gmbh Hydraulische Ventilanordnung mit einem druckgesteuerten Wegeventil
US8191689B2 (en) * 2009-06-19 2012-06-05 Tower Elevator Systems, Inc. Elevator safety rescue system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3434014A1 (de) * 1984-09-15 1986-03-20 Beringer-Hydraulik GmbH, Neuheim, Zug Hydraulische steuerung
US4726450A (en) * 1985-11-18 1988-02-23 Otis Elevator Company Hydraulic elevator with dynamically programmed motor-operated valve
DE3709661C2 (de) * 1987-03-24 1995-07-13 Haushahn C Gmbh Co Vorrichtung zur Unterdrückung bzw. zur Verhinderung der Schwingungen eines motorbetiebenen Hebezeugs, insbesondere eines Aufzugs
US5014824A (en) * 1990-01-19 1991-05-14 Otis Elevator Company Hydraulic elevator control valve

Also Published As

Publication number Publication date
ATE132112T1 (de) 1996-01-15
ITMI911374A0 (it) 1991-05-20
GR3019026T3 (en) 1996-05-31
DE69207065T2 (de) 1996-06-27
EP0514782A1 (en) 1992-11-25
DE69207065D1 (de) 1996-02-08
ES2082272T3 (es) 1996-03-16
DK0514782T3 (da) 1996-05-20
ITMI911374A1 (it) 1992-11-20
EP0514782B1 (en) 1995-12-27

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970529