US3776517A - Winch for use on sailboats - Google Patents

Winch for use on sailboats Download PDF

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Publication number
US3776517A
US3776517A US00240498A US3776517DA US3776517A US 3776517 A US3776517 A US 3776517A US 00240498 A US00240498 A US 00240498A US 3776517D A US3776517D A US 3776517DA US 3776517 A US3776517 A US 3776517A
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US
United States
Prior art keywords
drum
ratchet
winch
idler
sheet
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
US00240498A
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English (en)
Inventor
J Wolfram
R Davis
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Individual
Original Assignee
Individual
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Publication date
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Publication of US3776517A publication Critical patent/US3776517A/en
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Expired - Lifetime legal-status Critical Current

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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
    • B66D1/04—Driving gear manually operated
    • 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
    • B66D1/7415—Friction drives, e.g. pulleys, having a cable winding angle of less than 360 degrees

Definitions

  • ABSTRACT A winch including a flat base plate for [22] Ffled' 1972 supporting an upright cylindrical idler along with a flat [2i] Appl. No.: 240,498 pivot arm which in turn carries a ratchet drum.
  • a halyard, sheet, or the like passes less than a full turn about the drum in a relationship such 254/150 114/ figg z 'g that the tension in the halyard applies a force to the drum p g g g g the Sheet between the [58] Field of Search 254/150, 186, 15 R, d d th An h 254/180 175.5 1757- 114/218 mm e extensm a e drum prevents fouling and a handle (incorporating a [56] References Cited ratchet) engages the drum to actuate the drum and Y the pivotal mounting so as to accomplish various oper- UNITED STATES PATENTS atimm 3,580,209 5/1971 Olson 114/218 2,846,l88 8/1958 Pierce 254/l46 8 Claims, 4 Drawing Figures BACKGROUND AND SUMMARY OF THE INVENTION Since time immemorial, various forms of winches have been employed on sailboats
  • a winch should be easy to operate, durable, and easy to maintain. Additionally, and perhaps of greater significance, such a winch should be effective in cooperation with a sheet or the like, and should facilitate very rapid performance of various operations. Within the purview of such considerations, the unit hereof represents a significant development in the form of a considerably improved winch for use on sailboats.
  • the winch of the present invention incorporates a drum that is carriedon a flat pivotallymounted arm which in turn is facingly affixed to a flat base plate that also supports an idler.
  • the base plate is adapted to be affixed at a stationary location on a sailboat.
  • the winch as with a sheet for example, less than a full turn of the sheet extends engagingly about the peripheral non-slip surface of the drum, passing between the drum and the idler. As the sheet becomes stressed, in tension, the drum (by pivotal movement) is drawn into firm engagement with the idler to develop a cleating action that is proportional to the sheet tension.
  • a handle is employed in engagement with the drum, to ease the sheet by swinging the arm pivotally, to move the drum away from the idler. A somewhat similar operation is involved to cast off the sheet. Winching is also performed with the handle.
  • a ratchet mechanism in the handle facilitates the various operations and an extension fixed to the pivot arm at a location adjacent to the drum avoids fouling with regard to thedrum.
  • a winch unit F that is affixed to a boat B for operation with a sheet S, oriented as indicated.
  • the structure is viewed from the outboard side, and as indicated, the winch unit F may be operated by a disengageable handle H.
  • the sheet S is bent clockwise around a drum 10, so that the sheet exits between the drum l0 and a rotary idler 12.
  • the drum is supported on a pivotally-mounted flat arm 14 which in turn is supported by a base plate 16 that also supports the idler 12.
  • tension in the sheet S (indicated by an arrow 18) applying a force to draw the drum 10 toward the idler 12 thereby clamping the sheet S between'those members and applying a force to cleat the sheet.
  • tension in the sheet S (indicated by an arrow 18) applying a force to draw the drum 10 toward the idler 12 thereby clamping the sheet S between'those members and applying a force to cleat the sheet.
  • the base plate 16 is generally flat, and, somewhat of a right-angle triangular shape, (FIG. 2) having acuteangle rounded corners 20 and 22.
  • the comer 20 defines a raised, circular base support 2A (FIG. 1) which abuts the idler 12 in axial alignment.
  • the idler is supported on a bearing 26 (FIG. 2) and affixed to the plate 16 by a stud 28.
  • the base plate 16 pivotally receives the arm 14 at the arcuate corner 22 of the plate 16.
  • the arm 14 is somehwat pear shaped terminating at its smaller end 30 with a radius which ,is matingly aligned with the radius of the corner 22.
  • a spacing fastener 32 pivotally affixes the members together whereby the arm 14 may swing pivotally from the position illustrated to a location (not illustrated) in which an edge 34 of the arm 14 abuts the support 24, sothat an indentation 36 receives a small portion of the idler 12.
  • the drum 10 is variously positioned with reference to the idler 12.
  • the drum 10 is rotatably affixed to the arm 14 in concentric relationship with a ratcheting mechanism 38 (FIG. 2).
  • the drum 10 includes an external wall 40, the outside cylindrical surface of which defines flutes 42 fo'r'g'ripping the sheet'.
  • an internal wall 44 defines an internal handle-engaging socket 46.
  • the two walls 40 and 44 are joined as an integral unit by a cap 48 (FIG. l)extending across the top of the drum 10.
  • the space between the walls 40 and 44 telescopically receives a pawl-supporting cylinder 50 (FIG. 2) which supports a pawl 52 for engaging the ratchet wheel 43 under the force of a spring 54 as well known in the art.
  • a pawl-supporting cylinder 50 FIG. 2 which supports a pawl 52 for engaging the ratchet wheel 43 under the force of a spring 54 as well known in the art.
  • the drum 10 may be revolved in a clockwise direction or swing about the pivotal mount of the fastener 32 with reference to the base plate 16.
  • the handle H (FIG. 1) may be utilized.
  • the handle includes a square coupling 56 for mating engagement with the socket 46.
  • the stud 56 is mounted in a ratchet mechanism 57 embodied in a housing 58.
  • the ratchet mechanism may be similar to that illustrated in FIG. 2; how-. ever, the handle ratchet enables the square coupling 56 to be forcefully revolved only in a clockwise direction as viewed from the top.
  • the housing 58 of the handle II also receives a lever arm 60 which terminates in a normally-extending grip 62.
  • the lever arm 60 and the grip 62 contain locking linkages 64 and 66, respectively, which may be actuated to lock the ratchet mechanism embodied in the housing 58. That is, when the ratchet in the handle is locked, the square coupling 56 is rigid in relation to the handle.
  • the component parts of the unit F have been formed of an aluminum alloy using casting techniques.
  • the cylinder 50 is rigidly fixed to the arm 14 as by pressfitted pins (not shown) entering the cylinder 50.
  • drum 10 is next fitted over the cylinder 50 and locked for rotation on the arm 14 as by a snap ring (not shown).
  • An extension pin 68 is also afi'rxed to the arm 14 to obstruct the path around the exterior of the drum 10. Specifically, the pin 68 is positioned just beyond the point at which the sheet S departs from the drum 10 to pass about the idler 12.
  • the subassembly of the arm 14 is next affixed to the base plate 16 by the pivot fastener 32. Also, the stud 28 (FIG. 2) is affixed to the plate 16 along with the bearing 26 and the idler 12.
  • a set of wood screws 70 (FIG. 1) are passed through counter sunk bores 72 in the base plate 16, to be anchored in the boat B. Note that the unit is mounted in such a manner that the sheet S is received at a location substantially adjacent to the pivotal fastener 32.
  • a halyard or the sheet S is bent clockwise around the drum 10 (FIG. 1) contacting the drum for approximately three-quarters of a turn. Then, the sheet S is passed to engage the idler 12 so that the tail 74 falls inboard. With the application of a force as indicated by the arrow 18 to stress the sheet S, the drum l pivotally swings so that the sheet S is clampingly engaged between the flutes 42 and the idler 12. Diagrammatically, that condition is represented in FIG. 3, in which it may be seen that as the force of the arrow 18 increases, the forceful engagement between the drum l0 and the idler 12 also increases with the result that the sheet is automatically tailed and continuously cleated.
  • the winch may be actuated by using the handle H to revolve the drum while in the configuration of FIG. 3 as indicated by the dashed line arrows 75 and 77 (FIG. 1).
  • the winch drum 10 is revolved by a force indicated by a dashed line 78, the sheet S is drawn against the force of the arrow 18 by the gripping engagement between the drum l0 and the idler l2.
  • the handle H is employed to swing the drum 10 a slight distance away from the idler 12. That is, by locking the handle ratchet, the drum 10 may be revolved in a counterclockwise direction as indicated by the arrow 79 (FIG. 1) which is opposed to the ratchet mechanism built in the drum 10. Consequently, the drum 10 swings about the pivot, opening the space between the drum l0 and the idler l2 and releasing the grip on the sheet S, allowing the sheet to be eased.
  • the sheet tail 74 (FIG. 4) is positioned over the top of the drum at the idler as illustrated.
  • the drum is again moved in a counterclockwise direction as explained above, to separate the drum from the idler 12.
  • the sheet is stripped from the winch in a simple, clean operation.
  • the winch hereof is effective to provide a cleating force which is proportional to the sheet tension.
  • a somewhat related consideration is the fact that the unit does not involve a multiplicity of turns as with a conventional winch. Consequently, the unit may be rapidly stripped and there is less opportunity for fouling.
  • the sheet is rather simply guided through the structure hereof. That is, after passing about the drum 10 the sheet S is stripped therefrom by the pin 68 with the result that fouling is exceedingly unlikely.
  • the structure hereof enables significant advantages for a sailboat winch. Recognizing that the structure may be variously embodied and implemented, as will be readily apparent to those skilled in the art, the scope hereof shall be as defined by the claims set forth below.
  • a base plate adapted to be rigidly affixed to said boat
  • a ratchet drum mechanism affixed to extend perpendicu-larly from said base plate whereby to receive said halyard in cooperation with said idler roller;
  • pivotal means for accommodating a swing movement for variously positioning said drum with reference to said idler
  • a winch according to claim 1 further including a blocking extension affixed to said pivotal means to obstruct a circumferential path about said ratchet drum.
  • a winch according to claim 1 wherein said means for applying rotary force includes a coupling affixed in said drum and handle means for engaging said coupling.
  • a winch according to claim 1 wherein said pivotal means allows preset positional relationships between said drum and said roller to continue until altered by externally-applied forces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
US00240498A 1972-04-03 1972-04-03 Winch for use on sailboats Expired - Lifetime US3776517A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24049872A 1972-04-03 1972-04-03

Publications (1)

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US3776517A true US3776517A (en) 1973-12-04

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ID=22906767

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Application Number Title Priority Date Filing Date
US00240498A Expired - Lifetime US3776517A (en) 1972-04-03 1972-04-03 Winch for use on sailboats

Country Status (5)

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US (1) US3776517A (enExample)
JP (1) JPS4915190A (enExample)
FR (1) FR2179002B3 (enExample)
IT (1) IT980083B (enExample)
SE (1) SE393579B (enExample)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868958A (en) * 1973-11-26 1975-03-04 Inno Vet Instr Inc Calf extraction mechanism
US4058294A (en) * 1975-04-18 1977-11-15 Dressler Bruno Jean Marie Apparatus for hauling a flexible, textile or metal rope, cable or the like
USRE30089E (en) * 1975-04-24 1979-09-04 Self-tailing winch
US4699074A (en) * 1985-06-15 1987-10-13 Wright Brian L Accessory for yachts
WO1988004275A1 (en) * 1986-12-03 1988-06-16 Aronowitsch Mikael Evert G A drive arrangement
US4883255A (en) * 1988-02-01 1989-11-28 Custom Products Corporation Winch handle
US6058799A (en) * 1995-04-17 2000-05-09 Bonner; Daniel Low torque cranking device and methods of constructing and utilizing same
FR2846935A1 (fr) * 2002-11-13 2004-05-14 Wichard Dispositif de guidage et de blocage d'un cordage utilisable notamment a bord d'un voilier
US20060220377A1 (en) * 2005-04-01 2006-10-05 Zeigler Bryan N Cam expansion ring assembly
US20070074647A1 (en) * 2005-10-05 2007-04-05 Moore David G Mechanical flexor connector system for modular causeway system
US20090035108A1 (en) * 2007-07-31 2009-02-05 Jack Warner Quick release apparatus for a spare tire
US7562862B1 (en) * 2007-10-30 2009-07-21 Usa Products Group, Inc. Tensioning assembly
US20090183668A1 (en) * 2008-01-14 2009-07-23 Martin Buxton Personal support system for nautical vessels
US20110107871A1 (en) * 2007-12-21 2011-05-12 Frode Andersen Release mechanism for a sheet windlass handle
US20130142603A1 (en) * 2011-12-06 2013-06-06 Batz, S.Coop. Spare wheel storage assembly for a vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8123224U1 (it) * 1981-10-15 1983-04-15 C M L Costruzioni Mecc Lomazzo S P A Verricello, particolarmente per uso nautico, dotato di mezzi di guida per la scotta
US5799342A (en) * 1995-08-29 1998-09-01 Last; Harry J. Manual cover drive for swimming pools

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846188A (en) * 1954-10-20 1958-08-05 Pierce Joseph Martin Transmission and cylinder head hoist
US3580209A (en) * 1968-09-10 1971-05-25 Birger H Olson Controlled release safety cleat

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846188A (en) * 1954-10-20 1958-08-05 Pierce Joseph Martin Transmission and cylinder head hoist
US3580209A (en) * 1968-09-10 1971-05-25 Birger H Olson Controlled release safety cleat

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868958A (en) * 1973-11-26 1975-03-04 Inno Vet Instr Inc Calf extraction mechanism
US4058294A (en) * 1975-04-18 1977-11-15 Dressler Bruno Jean Marie Apparatus for hauling a flexible, textile or metal rope, cable or the like
USRE30089E (en) * 1975-04-24 1979-09-04 Self-tailing winch
US4699074A (en) * 1985-06-15 1987-10-13 Wright Brian L Accessory for yachts
WO1988004275A1 (en) * 1986-12-03 1988-06-16 Aronowitsch Mikael Evert G A drive arrangement
US5048799A (en) * 1986-12-03 1991-09-17 Aronowitsch Mikael E G Manual drive mechanism for a winch or similar appliance
US4883255A (en) * 1988-02-01 1989-11-28 Custom Products Corporation Winch handle
US6058799A (en) * 1995-04-17 2000-05-09 Bonner; Daniel Low torque cranking device and methods of constructing and utilizing same
FR2846935A1 (fr) * 2002-11-13 2004-05-14 Wichard Dispositif de guidage et de blocage d'un cordage utilisable notamment a bord d'un voilier
WO2004045944A1 (fr) * 2002-11-13 2004-06-03 Wichard Dispositif de guidage et de blocage d'un cordage utilisable notamment à bord d'un voilier
US20060220377A1 (en) * 2005-04-01 2006-10-05 Zeigler Bryan N Cam expansion ring assembly
US7350827B2 (en) * 2005-04-01 2008-04-01 Press-Seal Gasket Corporation Cam expansion ring assembly
US20070074647A1 (en) * 2005-10-05 2007-04-05 Moore David G Mechanical flexor connector system for modular causeway system
US7314017B2 (en) 2005-10-05 2008-01-01 Oldenburg Group Incorporated Mechanical flexor drive connector system for modular causeway system
US20090035108A1 (en) * 2007-07-31 2009-02-05 Jack Warner Quick release apparatus for a spare tire
US7562862B1 (en) * 2007-10-30 2009-07-21 Usa Products Group, Inc. Tensioning assembly
US20110107871A1 (en) * 2007-12-21 2011-05-12 Frode Andersen Release mechanism for a sheet windlass handle
US20090183668A1 (en) * 2008-01-14 2009-07-23 Martin Buxton Personal support system for nautical vessels
US8196541B2 (en) * 2008-01-14 2012-06-12 Martin Buxton Personal support system for nautical vessels
US20130142603A1 (en) * 2011-12-06 2013-06-06 Batz, S.Coop. Spare wheel storage assembly for a vehicle
US8956101B2 (en) * 2011-12-06 2015-02-17 Batz, S.Coop Spare wheel storage assembly for a vehicle

Also Published As

Publication number Publication date
SE393579B (sv) 1977-05-16
FR2179002A1 (enExample) 1973-11-16
IT980083B (it) 1974-09-30
JPS4915190A (enExample) 1974-02-09
FR2179002B3 (enExample) 1976-03-26

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