US3711065A - Marine winch - Google Patents

Marine winch Download PDF

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Publication number
US3711065A
US3711065A US00109484A US3711065DA US3711065A US 3711065 A US3711065 A US 3711065A US 00109484 A US00109484 A US 00109484A US 3711065D A US3711065D A US 3711065DA US 3711065 A US3711065 A US 3711065A
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US
United States
Prior art keywords
casing
turret
drum
sub
rotatable
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 - Lifetime
Application number
US00109484A
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English (en)
Inventor
C Lawrence
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Individual
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Individual
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Filing date
Publication date
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Publication of US3711065A publication Critical patent/US3711065A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/003—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion the gear ratio being changed by inversion of torque direction
    • F16H3/005—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion the gear ratio being changed by inversion of torque direction for gearings using gears having orbital motion
    • 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
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • 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
    • 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
    • B66D1/7484—Details concerning gearing arrangements, e.g. multi-speed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S254/00—Implements or apparatus for applying pushing or pulling force
    • Y10S254/901—Antifriction means for cable pulling drum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19172—Reversal of direction of power flow changes power transmission to alternate path

Definitions

  • the invention provides a winch having a circular main casing adapted to be fixed to a deck, a winch drum rotatable about the axis of an upper generally cylindrical turret of said casing, first unidirectional clutch means operatively located between the drum and the turret and permitting relative rotation between the drum and the turret in one direction only; a circular sub-casing having an upper sleeve portion extending through and coaxial with said turret, said sub-casing being rotatable about the axis of the turret, second unidirectional clutch means operatively located between the sleeve and the drum and permitting relative rotation between said sleeve and said from in one direction of rotation only, an operating spindle located axially of the turret and rotatable relative thereto, gearing adapted to transmit drive from said operating spindle to a flared circular lower part of said rotatable sub-casing, said gearing including two output gear wheels engaging diametrally opposite
  • the gearing is arranged to drive the output gear wheels in two ratios of say 3.5 l and ll l selectable on rotating the operating spindle in opposite directions.
  • the invention provides a winch having a circular main casing adapted to be fixed to a deck, a winch drum rotatable about the axis of an upper generally cylindrical turret of said casing, first unidirectional clutch means operatively located between the drum and the turret and permitting relative rotation between the drum and the turret in one direction only; a circular sub-casing having an upper sleeve portion extending through and coaxial with said turret, said sub-casing being rotatable about the axis of the turret, unidirectional clutch means operatively located between the sleeve and the drum and permitting relative rotation between said sleeve and said drum in one direction of rotation only, an operating spindle located axially of the turret and rotatable relative thereto, gearing adapted to transmit drive from said operating'spindle to a flared circular lower part of said rotatable subcasing, said gearing including two output gear wheels engaging diametrally opposite regions of
  • the gearing is arranged to drive the output gear wheels in two ratios of say 3.5 l and II l selectable on rotating the operating spindle in opposite directions.
  • the operating spindle has at its lower end two drive wheels.
  • a first one of these drive wheels is coupled to the spindle to rotate at all times therewith and said first wheel drives the two output wheels through two pairs of intermediate wheels, the wheels of each pair being coupled together through the medium of a third unidirectional clutch so that one wheel of the pair drives the other wheel of the pair in one direction only.
  • the spindle is coupled to its second drive wheel through the medium of a fourth unidirectional clutch and said second drive wheel is, on diametrally opposite sides, in toothed engagement with the output wheels.
  • the unidirectional clutches employed are preferably sprag clutches operating between smooth coaxial cylindrical surfaces.
  • the winch drum and the sub-casing are supported for rotation on the main casing by roller bearings.
  • FIGS. 1A and 1B are cross sectional views taken in the vertical plane passing through the centers of the two diametrally opposed output wheels, FIGS. 1A and 18 being views of the parts of the winch on the respective sides of its axis;
  • FIG. 2 is a perspective view partly cutaway illustrating the relative dispositions of the intermediate and output gear wheels
  • FIG. 3 is a plan view on two levels illustrating the output drive path through the intermediate gears
  • FIG. 4 is a perspective view illustrating the relative positions of the various gear wheels and their associated unidirectional clutches
  • FIG. 5 is a diagrammatic plan view of a single unidirectional clutch
  • FIG. 6 is a detail view of the clutch shown in FIG. 5.
  • FIG. 1 generally represents a circular main casing member adapted to be fixed to a deck, rooftop or analogous component of a marine vessel.
  • the main casing 1 has an upper generally cylindrical turret region 2 and flared bottom region 3 housing gearing means described below.
  • a winch drum 6 is rotatable about the axis of the upper generally cylindrical turret 2 of the casing 1, its rotational movement being supported by roller bearings 7a, 7b and 70.
  • the winch drum 6 is a composite member formed by an internal sleeve 60 and an'external portion 6b shaped in conventional winch drum manner.
  • first unidirectional clutch means 10 represents a first unidirectional clutch device operating between smooth cylindrical surfaces on the exterior of turret 2 and on the interior of the drum sleeve 60 respectively. Such first unidirectional clutch means 10 are effective to permit relative rotation between the drum 6 and the turret 2 in one direction only.
  • FIG. 11 represents a circular sub-casing having an upper sleeve portion 11a extending through and coaxial with the turret 2.
  • the abutment element 12 has in its upper regiona cylindrical surface 12a and between such surface and the internal cylindrical surface of the drum sleeve there is operatively located second unidirectional clutch means 20.
  • 21 represents an operating spindle located axially of the turret 2 and rotatable relative thereto, supported by an upper bearing assembly 21a and a lower bearing as sembly 23 carried by baseplate 4.
  • the operating spindle At its upper end the operating spindle has a socket 24 shown in FIG. 2 for receiving a correspondingly shaped end of an operating lever. Its lower end is splined to a sleeve 21b.
  • the gearing mounted on baseplate 4 and within the lower flared part 3 of the casing 1 is adapted to transmit drive from the sleeve 21b splined to the operating spindle 21, to a flared lower portion 11b of the rotatable sub-casing 11.
  • Such gearing essentially includes two output gear wheels 25 and 26 engaging diametrally opposite regions of a toothed ring 27 formed within the flared circular lower portion 11b of the subcasing III
  • the gearing is arranged to drive the output gear wheels 25 and 26 u nidirectiona'lly in one of two alternative ratios of say 3.5 1 and I1 l and such alternative ratios are selectable on rotating the operating spindle 21 in opposite directions.
  • the operating spindle 21 has at its lower end two drive gear wheels 31 and 32.
  • the drive gear wheel 31 is integral with sleeve 21b and hence rotates at all times with the spindle 21.
  • the Wheel 31 drives the output wheels 25 and 26 through two pairs of intermediate gear assemblies, one of which is indicated generally at 33 in FIGS. 2 and 3.
  • Each intermediate gear assembly 33 comprises a large gear wheel 33a adapted to drive a smaller gear wheel 33b through the medium of a third unidirectional clutch means 30 located within the large wheel 33a.
  • the smaller gear wheel 33b of the intermediate gear assembly 33 is in mesh with output drive wheel 25 (or 26) and the two assemblies 33 are located diametrally opposite one another within the lower flared part 3 of the main casing 1.
  • the second drive wheel 32 is meshed directly with the output drive wheels 25 and 26.
  • fourth unidirectional clutch means 40 in this case a pair of clutches, are operatively located to transmit drive to the wheel 32 from the spindle 21, such drive being transmitted only when the spindle 21 is rotated in the direction in which as described above, the third unidirectional clutch means within intermediate gear wheel 33a override.
  • Ball race assemblies 22 support rotational movement of drive wheel 32 relative to operating spindle 21.
  • the sub-casing 11 will be driven in only one direction. Rotation of the sub-casing 11 will, by way of second unidirectional clutch 20, be transmitted to winch drum 6. Winch drum 6 is .prevented from reverse rotation relative to casing l by first unidirectional clutch 10. However, due to the presence of the second unidirectional clutch 20 the winch drum 6 can be rotated relative to sub-casing 11 in one direction only, for example, when manual hauling of the sheets, lifts, halyards or the like is required without resort to the mechanical advantage provided by the gearing.
  • the unidirectional clutches 10, 20, 30, 40 employed in the winch are preferably sprag clutches operating between smooth coaxial cylindrical surfaces.
  • FIG. 6 This is shown in detail in FIG. 6 and comprises a series of identical bone shaped sprag members 60 located in windows in three concentric locating rings 61, 62 and 63, the intermediate ring 62 of which may be of spring steel.
  • the bone shaped sprag members are permitted by their locating rings to take up positions which are noticeably inclined to the radii of the assembly while when the surface 33d is rotated in the opposite direction the sprags tend towards taking up radial positions and are so shaped that they wedge between the surface 33d and the surface of spindle 33c preventing relative rotation between these surfaces.
  • the gear trains are appropriately manufactured from stainless steel and due to their opposite diametral dispositions there is cancellation of distortional torque effects.
  • the invention provides a winch which is substantially silent in operation, which has low friction and which provides alternative ratios of mechanical advantage and whose longevity is guaranteed due to the balancing of the torque distortion effects which would be created in the absence of duplication of the gearing in diametrally opposed fashion. Moreover, due to such balancing the cutting of the teeth of the various gears presents minimal problems. i
  • a marine winch including in combination:
  • a casing adapted to be fixed to a deck and having an upper, generally cylindrical turret;
  • a winch drum rotatable about the axis of said upper generally cylindrical turret of said casing
  • first unidirectional clutch means operatively located between the drum and the turret and permitting relative rotation between the drum and the turret in one direction only;
  • said circular sub-casing having a circular flared lower part and a toothed ring formed within said flared lower part;
  • an operating spindle located axially within the turret and rotatable relative thereto;
  • gearing operatively connected to transmit drive from said operating spindle to said flared circular lower part of said rotatable sub-casing, said gear-- ing including two output gear wheels engaging diametrically opposite regions of said toothed ring formed within said flared circular lower portion of said rotatable sub-casing, the said gearing being arranged to drive the output gear wheels in two ratios selectable on rotating the operating spindle in opposite directions, the operating spindle havg the opposite sides of said first drive wheel, the wheels of each pair being coupled together through a third unidirectional clutch so that one wheel of each pair drives the other wheel of the pair in one direction only, and the spindle being coupled to second drive wheel through a fourth unidirectional clutch, with diametrically opposite sides of said second drive wheel being in direct toothed engagement with the two output gear wheels.
  • a marine winch according to claim 1. wherein the winch drum and the sub-casing are supported for rotation on the main casing by roller bearings.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gear Transmission (AREA)
  • Structure Of Transmissions (AREA)
US00109484A 1970-02-09 1971-01-25 Marine winch Expired - Lifetime US3711065A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB617070 1970-02-09

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US (1) US3711065A (enrdf_load_stackoverflow)
GB (1) GB1290573A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802665A (en) * 1971-11-11 1974-04-09 Lewmar Marine Ltd Drive mechanism for manually operated sheet winches
US3809368A (en) * 1972-03-07 1974-05-07 Knowsley Eng Ltd Marine winch
US3981208A (en) * 1974-05-29 1976-09-21 Enkes N.V. Sheet winch
US3998431A (en) * 1974-05-10 1976-12-21 Lewmar Marine Limited Winch
US4240309A (en) * 1977-03-07 1980-12-23 David Tyler Ratchet devices
US4333362A (en) * 1979-05-31 1982-06-08 Asahi Malleble Iron Co., Ltd. Speed-shift apparatus for sheet winch
EP0107422A1 (en) * 1982-10-08 1984-05-02 Lewmar Marine Limited Two-speed winch
US5931062A (en) * 1997-05-13 1999-08-03 Marcovici; Mitch Efficient mechanical rectifier
US6353957B1 (en) 1999-10-11 2002-03-12 Pioneer Eclipse Corporation Floor maintenance machine including gearbox arrangement
US20130056694A1 (en) * 2011-09-07 2013-03-07 Stephen P. WILKINS Gear reduction assembly and winch including gear reduction assembly
US10458520B2 (en) 2016-11-29 2019-10-29 Sharkninja Operating Llc Direction controlled gearbox for appliance

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2219107B1 (enrdf_load_stackoverflow) * 1973-02-23 1977-12-30 Fleury Gaston
GB8519021D0 (en) * 1985-07-27 1985-09-04 Lewmar Marine Ltd Winch

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US261530A (en) * 1882-07-25 Capstan
US309477A (en) * 1884-12-16 Capstan-wind lass
US1368248A (en) * 1920-09-27 1921-02-15 Ingersoll Rand Co Capstan
US1424990A (en) * 1920-03-29 1922-08-08 Albert A Coyle Capstan
US3145974A (en) * 1963-05-31 1964-08-25 Thomas A Short Deck winch
US3536299A (en) * 1968-05-17 1970-10-27 Robert A Mccloud Winch mechanism
US3581854A (en) * 1968-07-24 1971-06-01 Kreske Walter J Torque and backstop device for winches
US3621730A (en) * 1969-12-22 1971-11-23 Gen Electric Washing machine with dual speed cycle control means

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US261530A (en) * 1882-07-25 Capstan
US309477A (en) * 1884-12-16 Capstan-wind lass
US1424990A (en) * 1920-03-29 1922-08-08 Albert A Coyle Capstan
US1368248A (en) * 1920-09-27 1921-02-15 Ingersoll Rand Co Capstan
US3145974A (en) * 1963-05-31 1964-08-25 Thomas A Short Deck winch
US3536299A (en) * 1968-05-17 1970-10-27 Robert A Mccloud Winch mechanism
US3581854A (en) * 1968-07-24 1971-06-01 Kreske Walter J Torque and backstop device for winches
US3621730A (en) * 1969-12-22 1971-11-23 Gen Electric Washing machine with dual speed cycle control means

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802665A (en) * 1971-11-11 1974-04-09 Lewmar Marine Ltd Drive mechanism for manually operated sheet winches
US3809368A (en) * 1972-03-07 1974-05-07 Knowsley Eng Ltd Marine winch
US3998431A (en) * 1974-05-10 1976-12-21 Lewmar Marine Limited Winch
US3981208A (en) * 1974-05-29 1976-09-21 Enkes N.V. Sheet winch
US4240309A (en) * 1977-03-07 1980-12-23 David Tyler Ratchet devices
US4333362A (en) * 1979-05-31 1982-06-08 Asahi Malleble Iron Co., Ltd. Speed-shift apparatus for sheet winch
EP0107422A1 (en) * 1982-10-08 1984-05-02 Lewmar Marine Limited Two-speed winch
US5931062A (en) * 1997-05-13 1999-08-03 Marcovici; Mitch Efficient mechanical rectifier
US6353957B1 (en) 1999-10-11 2002-03-12 Pioneer Eclipse Corporation Floor maintenance machine including gearbox arrangement
US20130056694A1 (en) * 2011-09-07 2013-03-07 Stephen P. WILKINS Gear reduction assembly and winch including gear reduction assembly
US9120655B2 (en) * 2011-09-07 2015-09-01 Wilkins Ip, Llc Gear reduction assembly and winch including gear reduction assembly
US10131524B2 (en) * 2011-09-07 2018-11-20 Wilkins Ip, Llc Gear reduction assembly and winch including gear reduction assembly
US10458520B2 (en) 2016-11-29 2019-10-29 Sharkninja Operating Llc Direction controlled gearbox for appliance

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GB1290573A (enrdf_load_stackoverflow) 1972-09-27

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