EP0808291B1 - Winde - Google Patents

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Publication number
EP0808291B1
EP0808291B1 EP96902538A EP96902538A EP0808291B1 EP 0808291 B1 EP0808291 B1 EP 0808291B1 EP 96902538 A EP96902538 A EP 96902538A EP 96902538 A EP96902538 A EP 96902538A EP 0808291 B1 EP0808291 B1 EP 0808291B1
Authority
EP
European Patent Office
Prior art keywords
lifting cable
drive pulley
supporting
winch according
guide means
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
EP96902538A
Other languages
English (en)
French (fr)
Other versions
EP0808291A1 (de
Inventor
Olof Roland Lundström
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.)
BATSYSTEM I GOETEBORG AB
Original Assignee
BATSYSTEM I GOETEBORG AB
Batsystem I Goteborg AB
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 BATSYSTEM I GOETEBORG AB, Batsystem I Goteborg AB filed Critical BATSYSTEM I GOETEBORG AB
Publication of EP0808291A1 publication Critical patent/EP0808291A1/de
Application granted granted Critical
Publication of EP0808291B1 publication Critical patent/EP0808291B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

  • the present invention relates to a winch which in the first place is intended to be used as an anchor winch on sailing boats or yachts and on motor boats but which may be utilized also for various other purposes.
  • the invention relates to a winch of the kind comprising a drive pulley for a lifting cable which is rotatable at choice in one direction or the other by means by a driving motor, and a guide means for the lifting cable which is connected to the drive pulley through a slip coupling and arranged for limited rotation around the rotary axis of the drive pulley, the lifting cable being movable by said guide means between an engagement position, in which it extends in a bight around the drive pulley and is located in drive engagement therewith, and a release position, in which it is located out of drive engagement with the drive pulley and extends in a bight around an alternative supporting means for the lifting cable over which the lifting cable may be let out without being driven from the drive motor.
  • a winch of said kind is previously known through EP-B 0 284 581.
  • the guide means is formed by a member having the shape of a sector of a cylinder and mounted for limited rotation thereof, said member also forming said alternative supporting means.
  • This member is located radially outside the drive pulley and axially in front of the latter and it is arranged to be swung around the rotary axis of the drive pulley between an inactive position below the drive pulley and an active position in which it is located above the drive pulley and can hold the lifting cable in a release position in which said cable is held lifted up in a radial direction from the drive pulley.
  • this construction of the known winch is unfavourable in several respects.
  • the two parts of the lifting cable cannot be permitted to extend substantially parallel to each other from the drive pulley or said sector-shaped member. On the contrary, they must form a considerable angle with each other. However, even if the lifting cable is arranged in this manner, it may happen that said cable will get hitched to the drive pulley and get jammed between the latter and said member. Naturally, this is totally unacceptable as it may result in very serious damages and accidents.
  • the invention has for its purpose to provide an improved winch of the kind above specified which eliminates the above described disadvantages as well as other disadvantages of the known winch.
  • the winch according to the invention proposed for the above purpose is primarly characterized in that the guide means is arranged to move the lifting cable between the engagement position and an axially displaced release position in which the lifting cable is supported axially at the side of the drive pulley by the alternative supporting means.
  • the alternative supporting means may be designed so as to be capable of supporting the lifting cable on an arc-shaped curved supporting surface extending through an angle of 180° instead of through a maximum angle of only about 90° as is the case in the known device.
  • the lastmentioned fact means that the lifting cable need not be subjected to any abrupt change in its direction at the ends of said supporting surface.
  • the alternative supporting means for the lifting cable may be formed by the guide means or a member rigidly connected thereto.
  • the alternative supporting means may instead preferably consist of a separate supporting member for the lifting cable located in relation to the drive pulley at the opposite side of the guide means.
  • This supporting member may consist of a stationary member.
  • it may instead consist of a supporting wheel for the lifting cable mounted on the driving shaft for the drive pulley.
  • Said supporting wheel may either be rigidly mounted on said shaft for rotation in unison therewith or it may be rotatably journalled on said shaft.
  • the supporting member may be arranged to exert a limited braking action on the lifting cable when the lifting cable is let out over the supporting member.
  • the winch constitutes an anchor winch and the lifting cable consists of an anchor cable carrying an anchor
  • said braking action may be selected in such a manner that during anchoring, the movement of the cable will be braked as soon as the anchor ceases to exert a pulling force on the cable.
  • the supporting member consists of a stationary member or a member ridigly mounted on the driving shaft for the drive pulley and rotatable in unison with said shaft, said braking action may be achieved by providing the supporting member with a supporting surface for the lifting cable consisting of a friction material. If the supporting member consists of a supporting wheel rotatably mounted on the driving shaft for the drive pulley, said braking action may instead be obtained by arranging the supporting wheel to engage the lifting cable and to be brought into rotation by the lifting cable when the latter is let out but simultaneously to be subjected to a limited braking action from braking means contacting the supporting wheel.
  • the guide means may suitably consist of a generally circular disc-shaped member, comprising a portion, projecting radially outside the drive pulley and having two cut out tongues which are bent in mutually opposite axial directions and extend towards each other as seen in the circumferential direction and which define a passage opening for the lifting cable between their free ends.
  • the alternative supporting means may preferably have a conically tapered supporting surface for the lifting cable tapering off in direction towards the guide means, in order hereby to facilitate a trasfer of the lifting cable from said supporting means to the drive pulley by the guide means.
  • the winch shown in Figures 1 - 7 comprises a reversible electric driving motor 10 and a self-locking reduction gear 11 provided with a projecting, at least approximately horizontal driving shaft 12 for a drive pulley 13 for a lifting cable consisting of a chain 14.
  • the drive pulley is provided with a central peripheral groove 13A and two peripheral rows of wedge-shaped projections 13B located at opposite sides of said groove.
  • Drive pulley 13 is non-rotatably connected to driving shaft 12 by means of a key 15 ( Figure 7) which extends into a keyway 16 in the drive pulley.
  • drive pulley 12 may be rotated at choice in one direction or the other by being driven from motor 10 through gear 11.
  • Reference numeral 17 designates a guide means for chain 14 which is rotatably mounted on driving shaft 12 and formed as a disc-shaped member.
  • This guide means serves to facilitate a movement of chain 14 between an engagement position, shown in Figures 1 and 4 and in which the chain extends in a bight around drive pulley 13 and is in drive engagement therewith, and a release position, shown in Figures 3 and 6 and in which the chain is located out of drive engagement with the drive pulley and extends in a bight around a supporting wheel 18 serving as an alternative supporting means for the chain.
  • Supporting wheel 18 is located in relation to drive pulley 13 at the opposite side of guide means 17 and it is non-rotatably connected to driving shaft 12 by means of a key 20 which extends into a keyway 19 ( Figure 7) in the supporting wheel. Furthermore, supporting wheel 18 is kept in an axially fixed position on driving shaft 12 by being held between a shoulder 21 of said shaft and a locking ring 22 which is received in a peripheral groove in the driving shaft.
  • Guide means 17 comprises a portion 17A projecting radially outside drive pulley 13 and provided with two cut out tongues 23 and 24 which are arcuately bent in mutually opposite axial directions. These two tongues extend in circumferential direction towards each other and define between their free ends a passage opening 25 for chain 14.
  • Guide means 17 is slip coupled to drive pulley 13 by means of a slip coupling.
  • This slip coupling comprises two thin discs 26 and 27 of a plastic material with suitable friction properties, located at opposite sides of the central portion of guide means 17, and a cup spring 28.
  • This cup spring rests with an inner portion thereof against a shoulder 29 on driving shaft 12, and, by means of outer peripheral portions thereof, it pushes the two discs 26 and 27 and the intermediate guide means 17 in axial direction towards the adjacent side of drive pulley 13.
  • Reference numeral 30 designates a nut which is mounted on a threaded outer end portion of driving shaft 12 and by means of which the contact pressure of the slip coupling may be adjusted.
  • Guide means 17 cannot be rotated unlimitedly around driving shaft 12 but only within a limited angle range of about 310°. This limitation of the possible rotation of the guide means is obtained by means of a sector-shaped projection 31, which extends in a radial outward direction from guide means 17, and a co-operating fixed stop 32.
  • this stop has been shown as consisting of a rod which is secured to the casing of reduction gear 11 and against which projection 31 may be brought to rest with one or the other of its two opposite radially extending edges 31A and 31B.
  • guide means 17 has been shown in one of its two end positions, while in Figures 3 and 6, it has been shown in its other end position. In both cases, tongues 23 and 24 are located in positions in which they leave chain 14 uninfluenced by them.
  • one part 14' of chain 14 is assumed to be connected to an anchor, not shown, which may subject said part to a downwardly directed pulling force, while the other part 14" of the chain is assumed to extend downwards into a chain box or the like, not shown.
  • driving motor 10 When the anchor is to be dropped, driving motor 10 is started and brought to rotate for a short period of time in a direction opposite to the above-mentioned rotary direction.
  • Drive pulley 13 will then be rotated in a counter-clockwise direction according to Figure 4 and rotate guide means 17, which is slip coupled thereto, from the position shown in Figure 4 to the position shown in Figure 6 while passing the intermediate position shown in Figure 5.
  • the supporting wheel 18 in order to make it possible for supporting wheel 18 to exert a certain braking action on chain 14 and hereby to prevent a continued letting out of the chain under the action of its own weight when the anchor has reached the current anchorage ground, the supporting wheel as a whole or at least an outer peripheral portion thereof may consist of a rubber material or any other suitable material offering a relatively high friction.
  • the chain When the desired length of chain 14 has been let out over supporting wheel 18, the chain may be brought back into engagement with drive pulley 13 by putting driving motor 10 into operation for a short period of time in order to rotate guide means 17 in a clockwise direction from the position according to Figure 6 to the position according to Figure 4.
  • This retransfer of the chain from supporting wheel 18 to the drive pulley is effected by tongue 24, which projects radially in front of the supporting wheel, and is facilitated by the fact that the supporting wheel is provided with a frusto-conical peripheral supporting surface for chain 14 tapering in direction towards guide means 17.
  • FIG 8 shows a winch according to a modified embodiment of the invention.
  • This winch differs from the winch according to Figures 1 to 7 in that supporting wheel 18' is rotatably mounted on driving shaft 12 instead of non-rotatably connected thereto.
  • supporting wheel 18' is provided with a row of wedge-shaped peripheral projections 33 which may be brought into engagement with chain 14 to ensure that supporting wheel 18' will be brought into rotation by the chain when the latter is let out over the supporting wheel.
  • suitable sensing and indication means not shown, to provide an indication of the chain length let out over the supporting wheel.
  • the supporting wheel may be arranged to be subjected to a limited braking action from braking means provided in contact therewith and consisting for instance of a brake disc 34, which is non-rotatably mounted on the driving shaft, and a cup spring 35, provided in contact with said brake disc.
  • the alternative supporting means for the lifting cable may consist of a stationary member mounted on a fixed portion of the winch.
  • the winch may be designed for use with another type of lifting cable than a chain, for instance a lifting cable consisting of a rope.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Pulleys (AREA)
  • Transmission Devices (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Jib Cranes (AREA)

Claims (11)

  1. Winde, umfassend ein Antriebsrad (13) für eine Hubtrosse (14), das mit einem Antriebsmotor (10) wahlweise in der einen oder in der anderen Richtung verdrehbar ist, und eine Führungseinrichtung (17) für die Hubtrosse, die über eine Rutschkupplung (26, 27, 28) mit dem Antriebsrad verbunden ist und die um die Drehachse des Antriebsrades begrenzt verdrehbar ist, wobei die Hubtrosse von der Führungseinrichtung zwischen einer Eingriffsstellung, in der sie sich in einer Bucht um das Antriebsrad (13) erstreckt und mit diesem in Antriebseingriff angeordnet ist, und einer Freigabestellung bewegbar ist, in der sie ausser Eingriff mit dem Antriebsrad angeordnet ist und sich in einer Bucht um eine alternative Abstützeinrichtung (18; 18') für die Hubtrosse (14) erstreckt, über welche die Hubtrosse gefiert werden kann, ohne von dem Antriebsmotor (10) angetrieben zu werden, dadurch gekennzeichnet, dass die Führungseinrichtung (17) ausgebildet ist, um die Hubtrosse (14) zwischen der Eingriffsstellung und einer axial versetzten Freigabestellung zu bewegen, in der die Hubtrosse (14) von der alternativen Abstützeinrichtung (18; 18') axial an der Seite des Antriebsrades (13) abgestützt wird.
  2. Winde nach Anspruch 1, dadurch gekennzeichnet, dass die alternative Abstützeinrichtung aus einem getrennten Abstützteil (18; 18') für die Hubtrosse (14) besteht, das in Bezug auf das Antriebsrad (13) auf der gegenüberliegenden Seite der Führungseinrichtung (17) angeordnet ist.
  3. Winde nach Anspruch 2, dadurch gekennzeichnet, dass das Abstützteil (18) aus einem stationären Teil besteht.
  4. Winde nach Anspruch 2, dadurch gekennzeichnet, dass das Abstützteil aus einem Abstützrad (18; 18') für die Hubtrosse (14) besteht, das auf der Antriebswelle (12) des Antriebsrades (13) montiert ist.
  5. Winde nach Anspruch 4, dadurch gekennzeichnet, dass das Abstützrad (18) auf der Antriebswelle (12) des Antriebsrades (13) zur gemeinsamen Verdrehung mit diesem drehfest angeordnet ist.
  6. Winde nach Anspruch 4, dadurch gekennzeichnet, dass das Abstützrad (18') auf der Antriebswelle (12) des Antriebsrades (13) drehbar gelagert ist.
  7. Winde nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass das Abstützteil (18; 18') ausgebildet ist, um auf die Hubtrosse (14) eine begrenzte Bremskraft auszuüben, wenn die Hubtrosse über das Abstützteil gefiert wird.
  8. Winde nach Anspruch 3 oder 5 und 7, dadurch gekennzeichnet, dass das Abstützteil (18) mit einer aus einem Reibmaterial bestehenden Abstützfläche für die Hubtrosse (14) versehen ist.
  9. Winde nach Anspruch 6 und 7, dadurch gekennzeichnet, dass das Abstützrad (18') ausgebildet ist, um mit der Hubtrosse (14) in Eingriff zu gelangen und von der Hubtrosse in Drehung versetzt zu werden, wenn letztere gefiert wird, aber gleichzeitig von einer das Abstützrad berührenden Bremseinrichtung (33, 34) einer begrenzten Bremswirkung ausgesetzt zu werden.
  10. Winde nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Führungseinrichtung (17) aus einem im allgemeinen runden scheibenförmigen Teil besteht, umfassend einen Bereich (17A), der radial über das Antriebsrad (13) hinausragt und zwei ausgeschnittene Zungen (23, 24) hat, die in axial entgegengesetzten Richtungen gebogen sind und die sich in Umfangsrichtung gesehen zueinander hin erstrecken und die zwischen ihren freien Enden eine Durchtrittsöffnung (25) für die Hubtrosse (14) definieren.
  11. Winde nach Anspruch 10, dadurch gekennzeichnet, dass die alternative Abstützeinrichtung (18; 18') eine konisch verjüngte Abstützfläche für die Hubtrosse (14) aufweist, die sich zu der Führungseinrichtung (17) hin verjüngt.
EP96902538A 1995-02-07 1996-01-30 Winde Expired - Lifetime EP0808291B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9500431 1995-02-07
SE9500431A SE503879C2 (sv) 1995-02-07 1995-02-07 Vinsch med drivläge och friläge
PCT/SE1996/000094 WO1996024552A1 (en) 1995-02-07 1996-01-30 A winch

Publications (2)

Publication Number Publication Date
EP0808291A1 EP0808291A1 (de) 1997-11-26
EP0808291B1 true EP0808291B1 (de) 2000-06-07

Family

ID=20397112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96902538A Expired - Lifetime EP0808291B1 (de) 1995-02-07 1996-01-30 Winde

Country Status (5)

Country Link
EP (1) EP0808291B1 (de)
DE (1) DE69608787D1 (de)
NO (1) NO973622D0 (de)
SE (1) SE503879C2 (de)
WO (1) WO1996024552A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19732306B4 (de) * 1997-07-26 2006-10-12 Volkswagen Ag Individuelle Kraftfahrzeugkennzeichnung
FR2900141B3 (fr) 2006-04-21 2008-07-11 Paillardet S A Sa Treuil de levage
US9475589B2 (en) 2013-12-20 2016-10-25 Google Inc. Systems and apparatus for winch drum mechanism

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709466A (en) * 1971-02-08 1973-01-09 A Dowrelio Anchor hoist
US3834670A (en) * 1973-10-11 1974-09-10 Reel Power Equipment Inc Boat anchor winch mechanism
DE2842814A1 (de) * 1978-09-30 1980-04-10 Delwing Dieter Mit motor oder mit hand angetriebene, ggf. fernsteuerbare ankerwinde
NO161487C (no) * 1987-03-18 1989-08-23 Lambertseter Ind As Anordning ved ankervinsj.
US5314166A (en) * 1991-10-07 1994-05-24 Muir Engineering Pty. Limited Self-tailing winch with free-fall capacity

Also Published As

Publication number Publication date
SE503879C2 (sv) 1996-09-23
DE69608787D1 (de) 2000-07-13
EP0808291A1 (de) 1997-11-26
NO973622L (no) 1997-08-06
SE9500431D0 (sv) 1995-02-07
SE9500431L (sv) 1996-08-08
WO1996024552A1 (en) 1996-08-15
NO973622D0 (no) 1997-08-06

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