GB1461757A - Pulley assemblies - Google Patents

Pulley assemblies

Info

Publication number
GB1461757A
GB1461757A GB1982775A GB1982775A GB1461757A GB 1461757 A GB1461757 A GB 1461757A GB 1982775 A GB1982775 A GB 1982775A GB 1982775 A GB1982775 A GB 1982775A GB 1461757 A GB1461757 A GB 1461757A
Authority
GB
United Kingdom
Prior art keywords
rope
pulley
holding member
winch
flutes
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.)
Expired
Application number
GB1982775A
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.)
LEISYSTEM
Original Assignee
LEISYSTEM
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
Priority claimed from FR7418305A external-priority patent/FR2272020A1/en
Priority claimed from FR7514487A external-priority patent/FR2310304A2/en
Application filed by LEISYSTEM filed Critical LEISYSTEM
Publication of GB1461757A publication Critical patent/GB1461757A/en
Expired 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
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/74—Capstans
    • B66D1/7494—Self-tailing capstans
    • 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
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/74—Capstans
    • B66D1/7421—Capstans having a vertical rotation axis
    • B66D1/7431—Capstans having a vertical rotation axis driven manually only

Landscapes

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

Abstract

1461757 Winches LEISYSTEM 12 May 1975 [20 May 1974 5 May 1975] 19827/75 Heading B8B [Also in Division F2] A wedge-action rope pulley 3 having a V- section groove 4 with the two sides of the groove containing flutes 6 inclined relatively to the corresponding radii, the flutes on one side being disposed symmetrically opposite those in the other side, is secured to one end face 1a of a winch barrel 1, and a free end 13a of a rope 13 passed around the winch barrel may be received in wedging engagement within the groove 4 of the pulley 3, the rope being guided in relation to the pulley by a holding member 8 comprising an annular portion 9 freely rotatable about the pulley axis and a tongue portion 10 which on its upper surface carries a guide finger 11 and on its lower surface is provided with a brake friction pad 12. The holding member 8 also has raised rim portions 9a and 10a which retain the rope 13 around the pulley upon occasions when the rope end 13a has been thrust forward towards the pulley, thereby easing it out of engagement with the flutes, as shown in Fig. 5, and permitting rope to be paid out from the winch. Tension applied to the rope end 13a will draw the rope into wedging engagement with the flutes 6, thereby causing rope to be hauled in by the winch, while resulting rope pressure on the brake pad 12 causes the holding member 8 to rotate bodily with the winch barrel and the pulley 3. Only a limited number of additional turns of rope may however be permitted to be stored on the winch barrel 1 by such action. In another embodiment, Fig. 11, the holding member may rotate bodily with the winch barrel and pulley only for a portion of one revolution, after which a fixed stop 24 holds stationary a tongue 23b of the holding member, and rope hauled on to the winch barrel is then offset by rope paid out from the pulley. In the embodiment of Fig. 11, the rope is held into the pulley groove by knurled rollers 27a and 27b, mounted on a rocking strip 26 pivoted to the holding member at 25. The pulley may be built up from disc sections of plastics material, e.g. nylon.
GB1982775A 1974-05-20 1975-05-12 Pulley assemblies Expired GB1461757A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7418305A FR2272020A1 (en) 1974-05-20 1974-05-20 Roller for cable winding drum - has cable wedged and compressed in roller channel by intermediate arm
FR7514487A FR2310304A2 (en) 1975-05-05 1975-05-05 Roller for cable winding drum - has cable wedged and compressed in roller channel by intermediate arm

Publications (1)

Publication Number Publication Date
GB1461757A true GB1461757A (en) 1977-01-19

Family

ID=26218352

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1982775A Expired GB1461757A (en) 1974-05-20 1975-05-12 Pulley assemblies

Country Status (4)

Country Link
JP (1) JPS5129654A (en)
DE (1) DE2522303A1 (en)
GB (1) GB1461757A (en)
IT (1) IT1032928B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096429A2 (en) * 1982-06-03 1983-12-21 Igelfors Bruks Ab A device for transport or displacement of elongated objects
US4603839A (en) * 1983-05-27 1986-08-05 Igelfors Bruks Ab Device for transport or displacement of elongated objects in particular, as well as a pulling or traction wheel comprised in said device
GB2496446A (en) * 2011-11-11 2013-05-15 Lewmar Ltd Self-tailing winch
US8820720B2 (en) 2011-11-11 2014-09-02 Lewmar Limited Winch
CN115135388A (en) * 2019-12-12 2022-09-30 吉尔·山徳尔瑟 Cord drive, portable device for driving a cord comprising a cord drive, kit, method and use

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5646157B2 (en) * 1973-06-05 1981-10-31
US4151980A (en) * 1976-11-26 1979-05-01 Lewmar Marine Limited Winch
IT8123224V0 (en) * 1981-10-15 1981-10-15 Lomazzo Costr Mecc WINCH, PARTICULARLY FOR NAUTICAL USE, EQUIPPED WITH GUIDING VEHICLES FOR THE SCOTTA.
JPH0530059U (en) * 1991-09-26 1993-04-20 勲 郷古 drum
CN102530193B (en) * 2012-01-17 2014-04-09 武汉船用机械有限责任公司 Roller built in double-brake flange for large towing winch and manufacturing method thereof
CN104210975B (en) * 2014-08-29 2016-09-14 苏州中州安***重有限公司 Electric block steel cord ends anti-loose self-locking rope sling
CN106275270B (en) * 2016-08-24 2018-08-21 武汉船用机械有限责任公司 A kind of towing cable machine cylinder

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096429A2 (en) * 1982-06-03 1983-12-21 Igelfors Bruks Ab A device for transport or displacement of elongated objects
EP0096429A3 (en) * 1982-06-03 1985-01-23 Igelfors Bruks Ab A device for transport or displacement of elongated objects in particular, as well as a pulling or traction wheel comprised in said device
US4603839A (en) * 1983-05-27 1986-08-05 Igelfors Bruks Ab Device for transport or displacement of elongated objects in particular, as well as a pulling or traction wheel comprised in said device
GB2496446A (en) * 2011-11-11 2013-05-15 Lewmar Ltd Self-tailing winch
US8820720B2 (en) 2011-11-11 2014-09-02 Lewmar Limited Winch
GB2496446B (en) * 2011-11-11 2014-12-31 Lewmar Ltd Winch
US9061870B2 (en) 2011-11-11 2015-06-23 Lewmar Limited Winch
CN115135388A (en) * 2019-12-12 2022-09-30 吉尔·山徳尔瑟 Cord drive, portable device for driving a cord comprising a cord drive, kit, method and use
CN115135388B (en) * 2019-12-12 2023-06-09 吉尔·山徳尔瑟 Portable device for driving a rope

Also Published As

Publication number Publication date
DE2522303A1 (en) 1975-12-04
JPS5129654A (en) 1976-03-13
IT1032928B (en) 1979-06-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee