FR2397358A1 - Safety device for personnel hoist - has centrifugal governor to open hydraulic valves which apply brake to frame which carries hydraulic shock absorbers - Google Patents

Safety device for personnel hoist - has centrifugal governor to open hydraulic valves which apply brake to frame which carries hydraulic shock absorbers

Info

Publication number
FR2397358A1
FR2397358A1 FR7721761A FR7721761A FR2397358A1 FR 2397358 A1 FR2397358 A1 FR 2397358A1 FR 7721761 A FR7721761 A FR 7721761A FR 7721761 A FR7721761 A FR 7721761A FR 2397358 A1 FR2397358 A1 FR 2397358A1
Authority
FR
France
Prior art keywords
hoist
safety device
shock absorbers
frame
centrifugal governor
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.)
Granted
Application number
FR7721761A
Other languages
French (fr)
Other versions
FR2397358B1 (en
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.)
SSCM
Original Assignee
SSCM
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 SSCM filed Critical SSCM
Priority to FR7721761A priority Critical patent/FR2397358A1/en
Publication of FR2397358A1 publication Critical patent/FR2397358A1/en
Application granted granted Critical
Publication of FR2397358B1 publication Critical patent/FR2397358B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/26—Positively-acting devices, e.g. latches, knives
    • 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
    • B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
    • B66B11/0266—Passive systems
    • B66B11/0273—Passive systems acting between car and supporting frame

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

The hoist has an inbuilt safety device. A roller attached to the hoist platform runs on a fixed guide and drives a centrifugal governor through a speed increasing gear. In the event of a failure of the lift drive, the resultant increase in speed of the hoist causes the governor to actuate the hydraulic valves (39). These valves (39) actuate hydraulic jacks (31) which apply a brake to a frame attached to the hoist which carries hydraulic shock absorbers.
FR7721761A 1977-07-13 1977-07-13 Safety device for personnel hoist - has centrifugal governor to open hydraulic valves which apply brake to frame which carries hydraulic shock absorbers Granted FR2397358A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7721761A FR2397358A1 (en) 1977-07-13 1977-07-13 Safety device for personnel hoist - has centrifugal governor to open hydraulic valves which apply brake to frame which carries hydraulic shock absorbers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7721761A FR2397358A1 (en) 1977-07-13 1977-07-13 Safety device for personnel hoist - has centrifugal governor to open hydraulic valves which apply brake to frame which carries hydraulic shock absorbers

Publications (2)

Publication Number Publication Date
FR2397358A1 true FR2397358A1 (en) 1979-02-09
FR2397358B1 FR2397358B1 (en) 1980-09-05

Family

ID=9193391

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721761A Granted FR2397358A1 (en) 1977-07-13 1977-07-13 Safety device for personnel hoist - has centrifugal governor to open hydraulic valves which apply brake to frame which carries hydraulic shock absorbers

Country Status (1)

Country Link
FR (1) FR2397358A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562931A1 (en) * 1992-03-26 1993-09-29 Dominique Prudhomme Emergency braking device or safety catch for an elevator cabin with integrated damping means
WO2002057176A1 (en) * 2001-01-18 2002-07-25 Plumettaz Sa Emergency braking and shock absorbing device for a lift or suspended load
CN111942991A (en) * 2020-08-05 2020-11-17 锦州大可矿山机械制造有限公司 Cage stall protection device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562931A1 (en) * 1992-03-26 1993-09-29 Dominique Prudhomme Emergency braking device or safety catch for an elevator cabin with integrated damping means
FR2689113A1 (en) * 1992-03-26 1993-10-01 Prudhomme Dominique Emergency stop device or parachute of an elevator car having integrated damping means.
WO2002057176A1 (en) * 2001-01-18 2002-07-25 Plumettaz Sa Emergency braking and shock absorbing device for a lift or suspended load
US6942070B2 (en) 2001-01-18 2005-09-13 Plumettaz Sa Emergency braking and shock absorbing device for a lift or suspended load
CN111942991A (en) * 2020-08-05 2020-11-17 锦州大可矿山机械制造有限公司 Cage stall protection device

Also Published As

Publication number Publication date
FR2397358B1 (en) 1980-09-05

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Legal Events

Date Code Title Description
ST Notification of lapse