WO2001035712A2 - Guindeaux a chute libre - Google Patents

Guindeaux a chute libre Download PDF

Info

Publication number
WO2001035712A2
WO2001035712A2 PCT/AU2000/001392 AU0001392W WO0135712A2 WO 2001035712 A2 WO2001035712 A2 WO 2001035712A2 AU 0001392 W AU0001392 W AU 0001392W WO 0135712 A2 WO0135712 A2 WO 0135712A2
Authority
WO
WIPO (PCT)
Prior art keywords
winch
anchor
pawl
clutch
free fall
Prior art date
Application number
PCT/AU2000/001392
Other languages
English (en)
Other versions
WO2001035712A3 (fr
Inventor
Robert John Muir
Original Assignee
Muir Engineering Pty. Limited
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 Muir Engineering Pty. Limited filed Critical Muir Engineering Pty. Limited
Priority to EP00974181A priority Critical patent/EP1235736B1/fr
Priority to AU12590/01A priority patent/AU774056B2/en
Priority to AT00974181T priority patent/ATE514651T1/de
Publication of WO2001035712A2 publication Critical patent/WO2001035712A2/fr
Publication of WO2001035712A3 publication Critical patent/WO2001035712A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/16—Tying-up; Shifting, towing, or pushing equipment; Anchoring using winches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/04—Fastening or guiding equipment for chains, ropes, hawsers, or the like
    • 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
    • B66D1/72—Anchor-chain sprockets; Anchor capstans

Definitions

  • This invention relates to the area of rope/chain anchor winch/windlasses and in particular to an anchor winch/windlass which can be used in a manner which permits free fall as well as controlled lowering and which can also be used as a conventional winch/windlass.
  • winches/ windlasses will be referred to for simplicity as winches.
  • Automatic winches are particularly suitable for use as anchor winches as when the anchor is being lowered the weight of the anchor can permit free falling of the rope or chain through the anchor winch. This is particularly useful in deep water anchoring. Preferably where anchoring is to take place in shallow water it is desirable that the anchor be lowered under the control of a motor.
  • a problem associated with trying to use anchor winches in free fall mode is that, if a boat has a deep chain locker, the weight of the chain hanging into the chain locker below the anchor winch can be greater than the weight of the anchor. Therefore the anchor cannot initially free fall despite an anchor winch being in free fall mode. The anchor will only free fall when the combined weight of the anchor and chain hanging over the bow roller is greater than that of the chain hanging down into the chain locker.
  • Winches are known which are capable of operating in free fall mode however none of these are capable of effectively stopping or braking during free fall without causing damage to equipment. In addition winches to date have not been able to operate as conventional power up power down winches while having a free fall capacity.
  • the invention is a winch which is provided with means to automatically provide free fall of an anchor, said winch including means to drive the anchor's attached rope/chain out of a storage area until the weight of the anchor and attached rope/chain is sufficient to activate a means to disengage the drive mechanism and the anchor is permitted to free fall; the winch also has means to provide controlled motorised lowering and braking of the falling anchor at any time during its downwards fall but which may be used as a conventional power up power down winch
  • the winch be able to be controlled remotely or at the winch itself
  • the winch of the invention is fitted with a rope/chain gypsy allowing it to use all rope, all chain or a rope/chain combination
  • the requirements of this anchor winch are that when lifting the anchor the gypsy must be driven with little or no loss of drive between the main shaft and the gypsy It must permit quick and easy free fall of the anchor when required
  • Fig 1 shows the winch in elevation and partly in section
  • Fig 2 is an exploded diagram of the winch components
  • the invention provides an anchor winch 100 having a clutching declutching pawl 24 such that the anchor winch can be used as a conventional winch by disengaging the clutching/declutching pawl (the pawl).
  • the anchor winch 100 of the invention includes a base 19 which is coupled to a gearbox, planetary box, or a worm and worm wheel drive.
  • An electric or hydraulic motor can power the gear drive and the radial movement is transferred from the motor to the gear drive.
  • the main shaft 17 is fitted to a base plate 1 which has an internal bearing to locate the main shaft 17 which is keyed 18 to the gear drive giving a positive drive.
  • the drive from the main shaft is transferred to a rope/chain gypsy 10 via a clutch cone drive 12.
  • the clutch cone drive 12 has an internal bore and an internal keyway and is fitted onto the main shaft 17 with a key fitted between the clutch cone and the main shaft.
  • the clutch cone is held in position on the main shaft by two circlips 11 , 13.
  • the outside diameter of the clutch cone 12 is tapered 25 degrees while the underside of the gypsy 10 has a section bored to the same angle and diameter as the clutch cone to allow the gypsy to sit over the clutch cone and have the best drive possible.
  • the gypsy 10 which sits over the main shaft 17 and on the clutch cone 12 is bored 0.15mm larger than the main shaft to allow it to rotate freely on the main shaft.
  • the gypsy has no positive drive between itself, the clutch cone or the main shaft.
  • a PVC clutch nut washer 9 which is used to assist in the engaging and disengaging of the clutch nut 8
  • the clutch nut 8 is fitted to the main shaft 17 and when the main shaft is driven in the lifting direction the clutch nut 8 is held in position by a spring 4 and loaded plunger pin 5 against a pawl 24 which is mounted on to the anchor winch chain cover/pawl housing 23 This allows the clutch nut to be driven down the mam shaft until it tightens against the PVC clutch nut washer and the clutch cone forcing the gypsy to rotate in the same direction as the mam shaft This rotation pulls the rope or chain through the gypsy lifting the anchor
  • the plunger pin 5 which is fitted to the outer diameter of the clutch nut 8 holds the clutch nut against the pawl 24 so that when the mam shaft 17 is rotated in either direction the clutch nut is driven up or down until it tightens on the gypsy or clutch nut retaining washer When this happens the plunger pin 5 is forced back into the clutch nut 8 to allow the clutch nut to rotate and not over tighten. Once the clutch nut rotates past the pawl the plunger pin returns to its normal position.
  • the plunger pin 5 is allowed to move because of a spring 4 installed behind it.
  • the spring allows the plunger pin to be pushed in when the clutch nut is under load allowing the clutch nut to rotate. Once the clutch nut has rotated past the pawl the spring pushes the plunger pin back to its normal position, this repeats itself once every revolution until the anchor winch is stopped or its direction changed .
  • the pawl 24 which is mounted to the chain cover/pawl housing 23 is mounted by a pivot point roll pin 25 to enable the pawl to be engaged for automatic downwards free fall or disengaged for conventional anchor winch operation.
  • the pawl 24 is machined with various angles at the plunger pin 5 contact areas to allow it to have two functions. It holds the clutch nut in position to engage the gypsy and also, when the clutch nut is rotated in the opposite direction, it will disengage the gypsy allowing the anchor to free fall.
  • a clutch nut retaining washer 2 is bolted to the top of the main shaft 17 and acts to stop the clutch nut becoming undone when the anchor winch is in reverse or free fall.
  • This washer 2 has a PVC wear washer 3 fitted to its underside to reduce friction between the clutch nut 8 and its retaining washer 2 and ensure that the clutch nut returns to its lifting position when the winch is in forward or lift mode.
  • ratchet pawl 15 and spring 14 to assist the anchor winch at the start of free fall at which time the weight of the anchor and rope/chain may be insufficient to effect free fall.
  • the ratchet pawl 15 and spring 14 are fitted to the clutch cone 12 the clutch cone having a cavity machined on one side of its tapered surface which allows the ratchet pawl and spring to sit in the clutch cone but below the bearing area or tapered surface.
  • the tapered section of the gypsy 10 bore where the clutch cone 12 sits has a groove machined down one side of the tapered surface. This groove catches the front or 6 leading edge of the ratchet pawl creating a positive drive between the clutch cone and the gypsy
  • the anchor winch of the invention therefore has the capacity to allow automatic lowering of an anchor to simulate continuous free fall or it may be used as a conventional winch by disengaging pawl 24 It may also be operated at the winch or remotely by a switching means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Transmission Devices (AREA)
  • Wind Motors (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Golf Clubs (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

L'invention concerne un treuil pourvu de moyens permettant de laisser automatiquement tomber librement une ancre, ledit treuil comprenant des moyens permettant d'entraîner la corde/chaîne fixée à l'ancre hors d'une zone de stockage, jusqu'à ce que le poids de l'ancre et de la corde/chaîne qui y est fixée soit suffisant pour activer des moyens permettant de débrayer le mécanisme d'entrainement, et pour laisser tomber librement l'ancre. Le treuil comprend également des moyens permettant de commander électriquement le freinage et la descente de l'ancre à tout moment pendant sa chute vers le bas, ceux-ci pouvant être utilisés comme un treuil conventionnel activé/désactivé.
PCT/AU2000/001392 1999-11-15 2000-11-15 Guindeaux a chute libre WO2001035712A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP00974181A EP1235736B1 (fr) 1999-11-15 2000-11-15 Guindeaux a chute libre
AU12590/01A AU774056B2 (en) 1999-11-15 2000-11-15 Free fall windlasses
AT00974181T ATE514651T1 (de) 1999-11-15 2000-11-15 Freefallwinden

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPQ4030 1999-11-15
AUPQ4030A AUPQ403099A0 (en) 1999-11-15 1999-11-15 Free fall windlasses

Publications (2)

Publication Number Publication Date
WO2001035712A2 true WO2001035712A2 (fr) 2001-05-25
WO2001035712A3 WO2001035712A3 (fr) 2001-10-11

Family

ID=3818175

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2000/001392 WO2001035712A2 (fr) 1999-11-15 2000-11-15 Guindeaux a chute libre

Country Status (4)

Country Link
EP (1) EP1235736B1 (fr)
AT (1) ATE514651T1 (fr)
AU (3) AUPQ403099A0 (fr)
WO (1) WO2001035712A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001096227A1 (fr) * 2000-06-16 2001-12-20 Maxwell Winches Limited Treuil
WO2007071950A2 (fr) * 2005-12-23 2007-06-28 Lewmar Limited Ensemble dispositif de transport de ligne marine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115817713B (zh) * 2022-11-24 2023-08-08 广东精铟海洋工程股份有限公司 一种万向导向装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566674A (en) * 1984-11-05 1986-01-28 Fulton Manufacturing Corporation Neutral winch
NZ240141A (en) * 1990-10-05 1993-03-26 Muir Eng Pty Ltd Power winch; free fall and winding modes selected by movement of conical pulleys
DE4446443C2 (de) * 1994-12-23 1996-10-02 Fuerstlich Hohenzollernsche We Winde mit einer als Freifallbremse verwendbaren Kupplung
JPH09249391A (ja) * 1996-03-15 1997-09-22 Masabumi Nakade 揚錨機

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None
See also references of EP1235736A4

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001096227A1 (fr) * 2000-06-16 2001-12-20 Maxwell Winches Limited Treuil
US6708954B2 (en) 2000-06-16 2004-03-23 Maxwell Marine Limited Winch
WO2007071950A2 (fr) * 2005-12-23 2007-06-28 Lewmar Limited Ensemble dispositif de transport de ligne marine
WO2007071950A3 (fr) * 2005-12-23 2007-08-16 Lewmar Ltd Ensemble dispositif de transport de ligne marine

Also Published As

Publication number Publication date
AU7158700A (en) 2001-05-17
AU1259001A (en) 2001-05-30
AU774056B2 (en) 2004-06-17
WO2001035712A3 (fr) 2001-10-11
EP1235736A4 (fr) 2006-11-29
ATE514651T1 (de) 2011-07-15
AUPQ403099A0 (en) 1999-12-09
EP1235736A1 (fr) 2002-09-04
EP1235736B1 (fr) 2011-06-29

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