EP0515185A1 - Portable winch - Google Patents
Portable winch Download PDFInfo
- Publication number
- EP0515185A1 EP0515185A1 EP92304609A EP92304609A EP0515185A1 EP 0515185 A1 EP0515185 A1 EP 0515185A1 EP 92304609 A EP92304609 A EP 92304609A EP 92304609 A EP92304609 A EP 92304609A EP 0515185 A1 EP0515185 A1 EP 0515185A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winch
- ring gear
- outer ring
- gear
- engine
- 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- Withdrawn
Links
Images
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
- B66D1/14—Power transmissions between power sources and drums or barrels
- B66D1/22—Planetary or differential gearings, i.e. with planet gears having movable axes of rotation
-
- 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
- B66D1/16—Power transmissions between power sources and drums or barrels the drums or barrels being freely rotatable, e.g. having a clutch activated independently of a brake
- B66D1/18—Power transmissions between power sources and drums or barrels the drums or barrels being freely rotatable, e.g. having a clutch activated independently of a brake and the power being transmitted from a continuously operating and irreversible prime mover, i.e. an internal combustion engine, e.g. on a motor vehicle or a portable winch
-
- 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
- B66D1/20—Chain, belt, or friction drives, e.g. incorporating sheaves of fixed or variable ratio
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
Definitions
- This invention relates to portable winches.
- the invention features a portable winch having an internal combustion engine, a line feeding mechanism for paying out or drawing in a line, and controllable gearing for coupling the engine to drive the line feeding mechanism to selectively either pay out or draw in the line.
- the controllable gearing includes a planetary gear train with an inner driving sun gear, an outer ring gear, planet gears disposed between and engaging the inner driving sun gear and the outer ring gear, and a mechanism for selectively either interlocking the motion of the driving sun gear with the outer ring gear, or permitting relative rotation of the driving sun gear and the outer ring gear in opposite directions.
- the tension in the line can be released in a controlled manner by driving the drum so that the line is paid out, thus preventing the line from being pulled off the drum uncontrollably.
- a non-reversing light-weight gasoline engine can be used, making the winch portable. The lever permits easy reversing of the drum rotation, even when the mechanism becomes too hot to touch.
- Fig. 1 is a top view partially cutaway of a portable winch constructed in accordance with this invention.
- Fig. 3A, 3B, 3C, and 3D are respectively side views (in the “in” position and in the “out” position) and top views (in the “in” position and in the “out” position) of an actuator plate and omega spring.
- the belt driver pulley 24 and the belt 18 are driven in the forward or pulling direction by four planet gears 28 (only two of them are seen in the Figures).
- the planet gears 28 are driven by a sun gear 30 which is attached to the engine drive shaft 22.
- the planet gears 28 rotate on shafts 32 that are rigidly connected to the planet carrier 26 and the teeth of the planet gears 28 engage the teeth of a ring gear 34 whose outer surface is the belt driver pulley 24.
- the planet carrier 26 In the pulling mode, the planet carrier 26 is pushed in or engaged so the shafts 32 of the planet gears 28 are locked into bores 35 in the ring gear 34.
- the planet carrier 26, the belt driver pulley 24/ring gear 34 combination, the sun gear 30, and the engine drive shaft 22 all drive in the same direction 36 to draw in the cable 12.
- a wound spring clutch 68 is provided to assure that a load, such as the truck being pulled from the mud, attached to the cable 12 will remain safely held in position when the engine 16 is not driving the drum 14.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Retarders (AREA)
Abstract
A portable winch (10) with an internal combustion engine (16) a line feeding mechanism (14) for paying out and drawing in a line, and controllable gearing (20) for coupling the engine to drive the line feeding mechanism to selectively either pay out or draw in the line, is described.
Description
- This invention relates to portable winches.
- Typically a winch is mounted in a fixed position and includes a motor-driven drum for spooling in a cable. A free end of the cable may then be used to haul or hoist an object. Conversely, the free end may be attached to a fixed object, while the winch is mounted on the object which is to be hauled or hoisted. For example, the winch may be mounted on a truck and the cable attached to a distant tree trunk for the purpose of pulling the truck out of a mud hole. Once the truck is pulled from the mud, the tension in the cable is typically relieved by a clutch mechanism which releases the drum from the drive mechanism and allows the drum to rotate freely, thus paying out the cable.
- In general, in one aspect, the invention features a portable winch having an internal combustion engine, a line feeding mechanism for paying out or drawing in a line, and controllable gearing for coupling the engine to drive the line feeding mechanism to selectively either pay out or draw in the line.
- Preferred embodiments of the invention include the following features. The controllable gearing includes a planetary gear train with an inner driving sun gear, an outer ring gear, planet gears disposed between and engaging the inner driving sun gear and the outer ring gear, and a mechanism for selectively either interlocking the motion of the driving sun gear with the outer ring gear, or permitting relative rotation of the driving sun gear and the outer ring gear in opposite directions. The mechanism includes shafts on which the planet gears are mounted, and the outer ring gear comprises bores for receiving the shafts, the shafts being movable axially from a position in which they are engaged in the bores and the motion of the driving sun gear is interlocked with the outer ring gear, to a position in which they are disengaged from the bores and relative rotation of the driving sun gear and the outer ring gear in opposite directions is permitted. The ring gear has an outer driving surface, and a drive belt couples the outer surface of the ring gear to a drive pulley. The line feeding mechanism comprises a drum and the engine comprises a non-reversing gasoline powered engine. A lever moves the shafts between the two positions, and an omega-shaped spring biases the lever to move to either of two positions.
- As a result, when a hoisting or hauling job is finished, the tension in the line can be released in a controlled manner by driving the drum so that the line is paid out, thus preventing the line from being pulled off the drum uncontrollably. A non-reversing light-weight gasoline engine can be used, making the winch portable. The lever permits easy reversing of the drum rotation, even when the mechanism becomes too hot to touch.
- Other advantages and features will become apparent from the following description of the preferred embodiment.
- Fig. 1 is a top view partially cutaway of a portable winch constructed in accordance with this invention.
- Figs. 2A and 2B are respectively sectional views at 2A-2A and 2B-2B of Fig. 1 with the planet carrier respectively in the pushed-in position and the pulled-out position.
- Fig. 3A, 3B, 3C, and 3D are respectively side views (in the "in" position and in the "out" position) and top views (in the "in" position and in the "out" position) of an actuator plate and omega spring.
- Referring to Fig. 1, a
portable winch 10 has asteel cable 12 which can be drawn onto and paid out from a generally cylindrical (slightly conical)drum 14. To apply pulling tension to thecable 12, a small, lightweight, non-reversible gasoline engine 16 (similar to a chain saw motor) drives thedrum 14 via arubber belt 18. Theengine 16 drives thebelt 18 through gearing 20. Thegearing 20 can also reverse the direction of rotation of thedrum 14 to pay out thecable 12. Thegearing 20 is located between anengine drive shaft 22 and abelt driver pulley 24 to which thebelt 18 is coupled. - As shown in Figs. 2A and 2B, the position of a
planet carrier 26 controls the direction of rotation of thebelt 18. With theplanet carrier 26 in the pushed-in position (Fig. 2A), thegearing 20 causes forward driving or pulling in of thecable 12. With theplanet carrier 26 in the pulled-out or disengaged position (Fig. 2B), thegearing 20 causes reverse driving or paying out of the cable. - Referring to Fig. 2A, the
belt driver pulley 24 and thebelt 18 are driven in the forward or pulling direction by four planet gears 28 (only two of them are seen in the Figures). Theplanet gears 28 are driven by asun gear 30 which is attached to theengine drive shaft 22. Theplanet gears 28 rotate onshafts 32 that are rigidly connected to theplanet carrier 26 and the teeth of theplanet gears 28 engage the teeth of aring gear 34 whose outer surface is thebelt driver pulley 24. In the pulling mode, theplanet carrier 26 is pushed in or engaged so theshafts 32 of theplanet gears 28 are locked intobores 35 in thering gear 34. In this mode, theplanet carrier 26, thebelt driver pulley 24/ring gear 34 combination, thesun gear 30, and theengine drive shaft 22 all drive in thesame direction 36 to draw in thecable 12. - Referring to Fig. 2B, the
belt driver pulley 24 and thebelt 18 are driven in the reverse or pay out direction by the fourplanet gears 28 operating in the pay-out mode. As in the pulling mode, theplanet gears 28 are driven by thesun gear 30, rotate onshafts 32, and operate in thering gear 34. However, in the pay-out mode, theplanet carrier 26 is pulled out or disengaged so theshafts 32 of theplanet gears 28 are withdrawn from thebores 35 in thering gear 34. In this mode, the pulled-outplanet carrier 26 does not rotate. The withdrawal of theshafts 32 from thebores 35 in thering gear 34 causes theplanet gears 28 and thering gear 34/belt driver pulley 24 combination to drive in adirection 37 opposite thedirection 36 described for the pulling mode. Rotation in thisdirection 37 results in pay out of thecable 12. Note that theengine 16 itself is not reversible and so thesun gear 30 and theengine drive shaft 22 continue to drive in thesame direction 36 described for the pulling mode while theplanet gears 28 and thering gear 34/belt driver pulley 24 combination drive in theopposite direction 37. - As shown in Figs. 3A, 3B, 3C, and 3D, an
actuator plate 38 may be manually moved by an operator in order to position theplanet carrier 26 into either of its two positions. Theactuator plate 38 is secured to anengine mount 40 and pivots about themount 40 when manually moved into one of its two positions. An omega-shaped spring 42 located between theactuator plate 38 and aside plate 44 on thewinch 10 provides biasing forces to hold theactuator plate 38 in the position selected by the operator. - Referring to Figs. 3A and 3C, with the
actuator plate 38 in the "in" position, theplanet carrier 26 is pushed in or engaged and thecable 12 is drawn in as previously described. - Referring to Figs. 3B and 3D, with the
actuator plate 38 in the "out" position, theplanet carrier 26 is pulled out or disengaged and thecable 12 is paid out as described above. Twocamming fingers 46 on theactuator plate 38 force theplanet carrier 26 to pull out when the actuator plate is moved into the "out" position. Once fully in the "out" position, a stoppinglatch 48 on theactuator plate 38 stops theplanet carrier 26 from rotating by contacting one of theshafts 32. - Regardless of the position of the
planet carrier 26, theengine 16 may be started and run at idle speed without drawing in or paying out thecable 12 by means of a centrifugal clutch 50. The centrifugal clutch 50 has aclutch cup 52 fixed to thesun gear 30 as shown in Figs. 2A and 2B. Referring to Figs. 2A and 2B, with theengine 16 at idle speed, the centrifugal clutch 50 is disengaged and theengine drive shaft 22 does not drive thesun gear 30. When theengine 16 reaches a suitable speed, centrifugal force causes the centrifugal clutch 50 to engage theclutch cup 52. With theclutch cup 52 engaged, theengine drive shaft 22 drives thesun gear 30 and thecable 12 is drawn in or paid out depending on the position of theplanet carrier 26 as described above. Theclutch cup 52 is fitted with a self-lubricatedbearing 54 to allow rotation about theengine drive shaft 22. A self-lubricatedbearing 56 is also used in the center of thering gear 34 to allow rotation about thesun gear 30. - Referring to Figs. 2A and 2B, the
planet carrier 26 is held in place with acap screw 58 that goes through abearing 60 and acompression spring 62 and is threaded into aflanged nut 64 on the end of theengine drive shaft 22. - Referring again to Figs. 2A and 2B, a
flange 66 is attached and sealed to thebelt driver pulley 24 to form a pocket where a lubricant for thegearing 20 is contained. - As shown in Fig. 1, a
wound spring clutch 68 is provided to assure that a load, such as the truck being pulled from the mud, attached to thecable 12 will remain safely held in position when theengine 16 is not driving thedrum 14. - Fig. 1 also shows a spring-loaded
freewheel knob 70 which when manually pulled out allows thedrum 14 to freewheel so that thecable 12 can be manually paid out from thedrum 14 in order, for example, to attach thecable 12 to a tree away from the mud and the truck on which thewinch 10 has been mounted. - Finally, as shown in Fig. 1, the
belt 18 is coupled to aninput pulley 72 which drives thedrum 14 through thewound spring clutch 68 and a series ofplanetary gears 74.
Claims (9)
- A portable winch comprising
an internal combustion engine,
a line feeding mechanism for paying out or drawing in a line, and
controllable gearing for coupling said engine to drive said line feeding mechanism to selectively either pay out or draw in said line. - The winch of claim 1 wherein said controllable gearing includes a planetary gear train with an inner driving sun gear, an outer ring gear, and planet gears disposed between and engaging said inner driving gear and said outer ring gear.
- The winch of claim 2 wherein said controllable gearing further comprises a mechanism for selectively either interlocking the motion of said driving sun gear with said outer ring gear, or
permitting relative rotation of said driving sun gear and said outer ring gear in opposite directions. - The winch of claim 3 wherein said mechanism comprises shafts on which said planet gears are mounted, and said outer ring gear comprises bores for receiving said shafts, said shafts being movable axially from a position in which they are engaged in said bores and the motion of said driving sun gear is interlocked with said outer ring gear, to a position in which they are disengaged from said bores and relative rotation of the driving sun gear and the outer ring gear in opposite directions is permitted.
- The winch of claim 2 wherein said ring gear has an outer driving surface, and further comprising
a drive belt coupling the outer surface of the ring gear to a drive pulley. - The winch of claim 1 wherein said line feeding mechanism comprises a drum.
- The winch of claim 1 wherein said engine comprises a non-reversing gasoline powered engine.
- The winch of claim 4 further comprising a lever for moving said shafts between said positions.
- The winch of claim 8 further comprising an omega-shaped spring for biasing said lever to move to either of two positions.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70362491A | 1991-05-21 | 1991-05-21 | |
US703624 | 1991-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0515185A1 true EP0515185A1 (en) | 1992-11-25 |
Family
ID=24826133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92304609A Withdrawn EP0515185A1 (en) | 1991-05-21 | 1992-05-21 | Portable winch |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0515185A1 (en) |
AU (1) | AU1408892A (en) |
CA (1) | CA2068683A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7850145B2 (en) | 2007-04-05 | 2010-12-14 | Warn Industries, Inc. | Portable pulling tool |
RU2468984C1 (en) * | 2011-07-29 | 2012-12-10 | Открытое акционерное общество "Кыштымское машиностроительное объединение" | Winch with reduction gearbox |
US9156665B2 (en) | 2013-03-13 | 2015-10-13 | Warn Industries, Inc. | Pulling tool |
US9463965B2 (en) | 2013-03-13 | 2016-10-11 | Warn Industries, Inc. | Pulling tool |
DE202016106022U1 (en) | 2016-10-26 | 2016-11-10 | Eder Maschinenbau Gmbh | winch |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1069552A (en) * | 1953-01-13 | 1954-07-09 | Movement transmission device, especially for winches | |
US2742262A (en) * | 1953-12-30 | 1956-04-17 | Curtis J Drawdy | Winch |
US4162713A (en) * | 1978-04-03 | 1979-07-31 | Otis Engineering Corporation | Planetary transmission with hydraulic engagement and disengagement |
GB2022202A (en) * | 1978-05-31 | 1979-12-12 | Wallace Murray Corp | Multi-speed temperature responsive fan drive |
DE3301476A1 (en) * | 1983-01-18 | 1984-07-19 | Kömag-Maschinen Vertriebs GmbH, 8228 Freilassing | Device for driving a power take-off shaft |
GB2158408A (en) * | 1984-05-08 | 1985-11-13 | Mannesmann Ag | Motor driven winch |
FR2568556A1 (en) * | 1984-08-04 | 1986-02-07 | Rotzler Gmbh Co | CONTINUOUS WINCH |
DE3921539A1 (en) * | 1989-06-30 | 1991-01-03 | Rotzler Gmbh Co | Transportable winch driven by internal combustion engine - has brake formed by hydraulic pump with throttled outlet |
-
1992
- 1992-04-07 AU AU14088/92A patent/AU1408892A/en not_active Abandoned
- 1992-05-14 CA CA 2068683 patent/CA2068683A1/en not_active Abandoned
- 1992-05-21 EP EP92304609A patent/EP0515185A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1069552A (en) * | 1953-01-13 | 1954-07-09 | Movement transmission device, especially for winches | |
US2742262A (en) * | 1953-12-30 | 1956-04-17 | Curtis J Drawdy | Winch |
US4162713A (en) * | 1978-04-03 | 1979-07-31 | Otis Engineering Corporation | Planetary transmission with hydraulic engagement and disengagement |
GB2022202A (en) * | 1978-05-31 | 1979-12-12 | Wallace Murray Corp | Multi-speed temperature responsive fan drive |
DE3301476A1 (en) * | 1983-01-18 | 1984-07-19 | Kömag-Maschinen Vertriebs GmbH, 8228 Freilassing | Device for driving a power take-off shaft |
GB2158408A (en) * | 1984-05-08 | 1985-11-13 | Mannesmann Ag | Motor driven winch |
FR2568556A1 (en) * | 1984-08-04 | 1986-02-07 | Rotzler Gmbh Co | CONTINUOUS WINCH |
DE3921539A1 (en) * | 1989-06-30 | 1991-01-03 | Rotzler Gmbh Co | Transportable winch driven by internal combustion engine - has brake formed by hydraulic pump with throttled outlet |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7850145B2 (en) | 2007-04-05 | 2010-12-14 | Warn Industries, Inc. | Portable pulling tool |
RU2468984C1 (en) * | 2011-07-29 | 2012-12-10 | Открытое акционерное общество "Кыштымское машиностроительное объединение" | Winch with reduction gearbox |
US9156665B2 (en) | 2013-03-13 | 2015-10-13 | Warn Industries, Inc. | Pulling tool |
US9463965B2 (en) | 2013-03-13 | 2016-10-11 | Warn Industries, Inc. | Pulling tool |
DE202016106022U1 (en) | 2016-10-26 | 2016-11-10 | Eder Maschinenbau Gmbh | winch |
Also Published As
Publication number | Publication date |
---|---|
CA2068683A1 (en) | 1992-11-22 |
AU1408892A (en) | 1992-11-26 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DK FR GB IT LI NL SE |
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17P | Request for examination filed |
Effective date: 19930525 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Withdrawal date: 19940302 |