FR2393758A1 - AUTOMATIC BRAKING DEVICE FOR A LIFTING DEVICE - Google Patents

AUTOMATIC BRAKING DEVICE FOR A LIFTING DEVICE

Info

Publication number
FR2393758A1
FR2393758A1 FR787816882A FR7816882A FR2393758A1 FR 2393758 A1 FR2393758 A1 FR 2393758A1 FR 787816882 A FR787816882 A FR 787816882A FR 7816882 A FR7816882 A FR 7816882A FR 2393758 A1 FR2393758 A1 FR 2393758A1
Authority
FR
France
Prior art keywords
shaft
brake disc
load support
automatic braking
braking
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Withdrawn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
FR787816882A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2393758A1 publication Critical patent/FR2393758A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • 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
    • B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
    • B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

Dispositif de freinage automatique pour un appareil de levage comportant un arbre 10, un tambour 14 relié à cet arbre, et un ressort 29 relié à l'arbre et disposé de façon à se tendre lorsque l'arbre tourne dans un sens lors du déroulement du support de charge, afin ultérieurement de faire tourner l'arbre dans le sens opposé pour réenrouler sur le tambour le support de charge, les moyens de freinage comportant un disque de frein à commande par inertie 31 monté pour tourner sur l'arbre 10, ce disque étant disposé pour coopérer avec une surface 32, fixe par rapport à l'arbre, et à un moyen 17 fixé sur l'arbre, pour freiner ce dernier. Le disque de frein 31 est réalisé pour se déplacer d'une position neutre à une position de blocage lorsque le disque de frein tourne par rapport à l'arbre 10 du fait d'une rapide rotation de l'arbre dans le sens du réenroulement et un ressort 34 est disposé pour ramener le disque de frein 31 à la position neutre pour un nouveau déroulement du support de charge 18.Automatic braking device for a lifting device comprising a shaft 10, a drum 14 connected to this shaft, and a spring 29 connected to the shaft and arranged so as to tension when the shaft turns in one direction during the unwinding of the load support, in order subsequently to rotate the shaft in the opposite direction to rewind the load support on the drum, the braking means comprising an inertia-controlled brake disc 31 mounted to rotate on the shaft 10, this disc being arranged to cooperate with a surface 32, fixed with respect to the shaft, and with a means 17 fixed on the shaft, for braking the latter. The brake disc 31 is made to move from a neutral position to a locked position when the brake disc rotates relative to the shaft 10 due to rapid rotation of the shaft in the direction of rewinding and a spring 34 is arranged to return the brake disc 31 to the neutral position for a new unwinding of the load support 18.

FR787816882A 1977-06-06 1978-06-06 AUTOMATIC BRAKING DEVICE FOR A LIFTING DEVICE Withdrawn FR2393758A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7706570A SE405840B (en) 1977-06-06 1977-06-06 AUTOMATIC WORKING BRAKE BODY FOR ELEVATOR DEVICES

Publications (1)

Publication Number Publication Date
FR2393758A1 true FR2393758A1 (en) 1979-01-05

Family

ID=20331526

Family Applications (1)

Application Number Title Priority Date Filing Date
FR787816882A Withdrawn FR2393758A1 (en) 1977-06-06 1978-06-06 AUTOMATIC BRAKING DEVICE FOR A LIFTING DEVICE

Country Status (10)

Country Link
JP (1) JPS5417248A (en)
AU (1) AU517332B2 (en)
BR (1) BR7803599A (en)
CA (1) CA1081204A (en)
DD (1) DD135893A5 (en)
DE (1) DE2824595A1 (en)
FR (1) FR2393758A1 (en)
GB (1) GB1582724A (en)
IT (1) IT1095037B (en)
SE (1) SE405840B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241730B4 (en) * 1992-07-29 2005-03-24 Takata-Petri (Ulm) Gmbh Spring-driven retractor for safety belts in motor vehicles
US5624084A (en) * 1993-08-09 1997-04-29 Takata Vehicle Safety Technology Gmbh Tension reducer
US5934595A (en) * 1997-11-19 1999-08-10 Breed Automotive Technology, Inc. Seat belt retractor with comfort or tension reducing feature
EP0937676A1 (en) * 1998-02-24 1999-08-25 TECHNISCHE ENTWICKLUNGEN Dr. Becker GmbH Lifting device
US8814745B2 (en) 2012-07-06 2014-08-26 Brian Lundrigan Dynamic brake for a winch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3572482A (en) * 1969-01-03 1971-03-30 Us Army Automatic clutch and brake for hoists

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3572482A (en) * 1969-01-03 1971-03-30 Us Army Automatic clutch and brake for hoists

Also Published As

Publication number Publication date
DD135893A5 (en) 1979-06-06
SE405840B (en) 1979-01-08
BR7803599A (en) 1979-02-13
CA1081204A (en) 1980-07-08
JPS5417248A (en) 1979-02-08
AU3686078A (en) 1979-12-13
AU517332B2 (en) 1981-07-23
IT7824259A0 (en) 1978-06-06
DE2824595A1 (en) 1978-12-07
GB1582724A (en) 1981-01-14
IT1095037B (en) 1985-08-10

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Legal Events

Date Code Title Description
ST Notification of lapse