FR2359064A2 - Automatic fall prevention device for hoist - has rotary device triggering safety rope self-locking grip on detection of excessive rope speed - Google Patents

Automatic fall prevention device for hoist - has rotary device triggering safety rope self-locking grip on detection of excessive rope speed

Info

Publication number
FR2359064A2
FR2359064A2 FR7622635A FR7622635A FR2359064A2 FR 2359064 A2 FR2359064 A2 FR 2359064A2 FR 7622635 A FR7622635 A FR 7622635A FR 7622635 A FR7622635 A FR 7622635A FR 2359064 A2 FR2359064 A2 FR 2359064A2
Authority
FR
France
Prior art keywords
safety rope
hoist
rope
detection
fall prevention
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
FR7622635A
Other languages
French (fr)
Other versions
FR2359064B2 (en
Inventor
Michel Cavalieri
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.)
Tractel SAS
Original Assignee
Tractel SAS
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 Tractel SAS filed Critical Tractel SAS
Priority to FR7622635A priority Critical patent/FR2359064A2/en
Publication of FR2359064A2 publication Critical patent/FR2359064A2/en
Application granted granted Critical
Publication of FR2359064B2 publication Critical patent/FR2359064B2/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/16—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes for action on ropes or cables

Abstract

The automatic fall-prevention device is for a motor-driven hoist, having a self-tightening jaw block sustaining the load on a safety rope. A movable frame is accommodated in a housing, and a rotary device detects the unwinding speed of the safety rope in a given direction. This is coupled to the safety rope grip mechanism by a cocked mechanism which it triggers when the rope speed exceeds a pre-set value. The cocked mechanism can also be triggered by the anchoring link, where the load applied to the latter is less than a given minimum value.
FR7622635A 1976-07-23 1976-07-23 Automatic fall prevention device for hoist - has rotary device triggering safety rope self-locking grip on detection of excessive rope speed Granted FR2359064A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7622635A FR2359064A2 (en) 1976-07-23 1976-07-23 Automatic fall prevention device for hoist - has rotary device triggering safety rope self-locking grip on detection of excessive rope speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7622635A FR2359064A2 (en) 1976-07-23 1976-07-23 Automatic fall prevention device for hoist - has rotary device triggering safety rope self-locking grip on detection of excessive rope speed

Publications (2)

Publication Number Publication Date
FR2359064A2 true FR2359064A2 (en) 1978-02-17
FR2359064B2 FR2359064B2 (en) 1979-03-09

Family

ID=9176101

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7622635A Granted FR2359064A2 (en) 1976-07-23 1976-07-23 Automatic fall prevention device for hoist - has rotary device triggering safety rope self-locking grip on detection of excessive rope speed

Country Status (1)

Country Link
FR (1) FR2359064A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101891093A (en) * 2010-07-14 2010-11-24 中国核工业华兴建设有限公司 Mechanical anti-falling locking safety device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101891093A (en) * 2010-07-14 2010-11-24 中国核工业华兴建设有限公司 Mechanical anti-falling locking safety device
CN101891093B (en) * 2010-07-14 2012-05-09 中国核工业华兴建设有限公司 Mechanical anti-falling locking safety device

Also Published As

Publication number Publication date
FR2359064B2 (en) 1979-03-09

Similar Documents

Publication Publication Date Title
ES482725A1 (en) Roll-up device for safety belt
ES270946U (en) Automatic locking safety belt retraction apparatus with resetting means.
ES8201832A1 (en) Safety belt roll-up device
FR2359064A2 (en) Automatic fall prevention device for hoist - has rotary device triggering safety rope self-locking grip on detection of excessive rope speed
JPS5438053A (en) Safety device for elevator cage
FR2422587A1 (en) Safety device for mountaineering - has spring loaded clamp to hold rope against pulley during climbing with pressure released by cam mechanism
JPS5440457A (en) Safety device for elevator
JPS5464327A (en) Crew constraining band winder
JPS53109356A (en) Emergency rescue exit for elevator cage
FR2410482A1 (en) Fall protection device for safety harness - has braked retaining rope working with distance limiting system
JPS53125019A (en) Safety device for camera
FR2374251A1 (en) Safety switch for hoist or lift - uses balance lever to switch off driving motor and switch on warning light if cable fails
JPS551806A (en) Sludge scraper
KR850002861Y1 (en) Emergent escaping device
JPS5415244A (en) Door device for elevator
FR2338221A1 (en) Hoist mechanism safety device - has motor and reduction gear with extra rope kept under permanent tension
FR2323404A1 (en) Vehicle safety belt automatic release mechanism - has adjustable release force applied via adjustable delay device
JPS5420549A (en) Device for controlling elevator cage speed
JPS5225348A (en) Emrgency stop device for elevators
JPS5387449A (en) Safety device of elevator
IT1166737B (en) Automatic load arresting device - has flanges on which rope grip mechanism pivots attached directly to load
SU964835A1 (en) Device for protecting electric drive
JPS57114730A (en) Protective method of overload to driving power source in positioning control on car
FR2358081A7 (en) Rope type personnel rescue equipment - has cylindrical body with hook guides braking rope and facing opposite ways
JPS5497948A (en) Device for protecting elevator cage