US20080293313A1 - Demountable Cable Cutter - Google Patents

Demountable Cable Cutter Download PDF

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Publication number
US20080293313A1
US20080293313A1 US12/095,753 US9575306A US2008293313A1 US 20080293313 A1 US20080293313 A1 US 20080293313A1 US 9575306 A US9575306 A US 9575306A US 2008293313 A1 US2008293313 A1 US 2008293313A1
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US
United States
Prior art keywords
cable cutter
parts
bolt
hub
cutter according
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.)
Abandoned
Application number
US12/095,753
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English (en)
Inventor
Franck Delot
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.)
Delot et Cie SARL
Original Assignee
Delot et Cie SARL
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 Delot et Cie SARL filed Critical Delot et Cie SARL
Assigned to SOCIETE DELOT & CIE reassignment SOCIETE DELOT & CIE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DELOT, FRANCK
Publication of US20080293313A1 publication Critical patent/US20080293313A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
    • B63H5/165—Propeller guards, line cutters or other means for protecting propellers or rudders

Definitions

  • the present invention relates to the nautical field, and more particularly to a cable cutter which can be mounted on a boat's propeller shaft.
  • a cable cutter is useful for releasing the propeller shaft when a cable gets caught in the shaft and risks blocking the rotation of the propeller.
  • the word cable used here covers a large number of objects capable of getting caught around the shaft, in particular, cables, buoy ropes, fishing net cables or parts of fishing nets, or weeds.
  • Such a cable cutter is disclosed by the document FR2768120.
  • the mounting of such a cable cutter is carried out during dry-docking of the boat, which is expensive. It is then necessary to remove the propeller, which means using a hub extractor, and generally requires the intervention of a professional.
  • brackets are mounted on brackets.
  • a bracket is attached to the hull of the boat and constitutes an intermediate support for the propeller shaft.
  • a first part of the shaft extends from the point from where it leaves the hull to the bracket, and a second part extends from the bracket to the propeller.
  • a cable cutter mounted on the second part, between the bracket and the propeller, as is the case with a cable cutter of the prior art, is ineffective if a cable gets caught around the first part of the propeller shaft.
  • the purpose of the invention is to propose a cable cutter which has improved mounting facilities and which can respond to the problem posed by propeller shafts mounted on an intermediate bracket.
  • such a cable cutter comprising a hub for attaching it to a boat's propeller shaft and a blade carried by said hub, said cable cutter comprising several mutually demountable parts so that the propeller shaft can be inserted radially into the hub.
  • the several parts are two parts which can be demounted and assembled along an axial plane of the hub. They are advantageously provided in order to be held by at least one bolt arranged so that a first part comprises a housing for supporting the head of said bolt and the second part comprises a threaded zone for engaging with said bolt.
  • the several parts are two parts which can be demounted and assembled along two separation planes arranged on either side of an internal bore of the hub, and defining between them an opening at least as wide as the diameter of said bore.
  • the planes can be substantially symmetrical relative to an axial plane of the hub, Moreover they can also be parallel to each other and optionally tangent to the bore.
  • the parts can be provided in order to be held by at least one bolt, a first part comprising opposite each other, on either side of the opening, on the one hand a housing for supporting the head of said bolt and on the other hand a threaded zone for engaging with said bolt, the second part comprising an unthreaded hole for the passage of said bolt between the separation planes.
  • the cable cutter advantageously comprises a locking screw screwed into at least one of the parts, the locking screw being provided in order to exert a locking force against the shaft.
  • FIG. 1 is a perspective view of a first embodiment of a cable cutter according to the invention, mounted on a propeller shaft;
  • FIG. 2 is an exploded perspective view of the cable cutter of FIG. 1 ;
  • FIG. 3 is an exploded top view of a second embodiment of a cable cutter according to the invention.
  • FIG. 4 is a diagrammatic view of a part of a boat comprising a shaft mounted on an intermediate bracket and equipped with two cable cutters according to the first embodiment, illustrated in FIGS. 1 and 2 .
  • FIG. 1 represents a cable cutter 10 mounted on a propeller shaft 1 .
  • the cable cutter is generally symmetrical in shape around an axis X of revolution. As more particularly illustrated in FIG. 2 , it comprises two parts 11 , 12 which can be separated along an axial plane P, i.e. comprising the axis of revolution X. Without the position of FIG. 1 , when the cable cutter is mounted on the propeller shaft 1 , the axis X merges with the axis of revolution of the propeller shaft 1 .
  • the two parts form together a hub 2 provided so as to be adjusted around the propeller shaft 1 and an annular blade 3 extending radially outwards, from and around the hub 2 .
  • the blade 3 comprises a cutting outside edge which is substantially circular, extending over the whole periphery of the blade. This outside edge is constituted by teeth substantially analogous to those of a serrated knife blade.
  • the hub 2 comprises a bore of the cylindrical hub 5 , with a diameter substantially identical to a diameter D 1 of the shaft 1 .
  • the hub bore is provided for passing the shaft 1 through the cable cutter 10 .
  • the plane P cuts the hub bore diametrically, so that in each part 11 , 12 of the cable cutter 10 , a corresponding portion of the hub bore 5 comprises an opening with a width substantially equal to the diameter D 1 of the shaft.
  • the shaft can be inserted radially into the respective portions of the hub bore 5 , so that the two parts 11 , 12 can be assembled radially around the shaft. It is therefore unnecessary to remove the propeller in order to mount such a cable cutter.
  • the cable cutter comprises two holes 14 for receiving the bolts 13 , drilled in the hub 2 , on either side of the bore 5 .
  • Each hole 14 is perpendicular to the plane P. It comprises a first wide zone 141 , for receiving the head of the bolt 13 ; a second zone 142 with a reduced diameter extends the first in order to allow the body of the bolt to pass through.
  • the first zone opens onto the periphery of the hub.
  • the second zone opens onto the plane P.
  • the first and the second zone are unthreaded.
  • a third zone 143 threaded for engaging with the bolt 13 , extends the second zone through the second part 12 .
  • a locking screw 15 is also provided. Its purpose is to prevent the relative movement of the shaft and the cable cutter. It is screwed into a thread 16 passing through the hub 2 between its periphery and the bore 5 , in the second part 12 .
  • FIG. 3 A second embodiment of a cable cutter according to the invention will now be described, with reference to FIG. 3 .
  • This embodiment will be described only where it differs from the embodiment described previously with reference to FIGS. 1 and 2 . Similar elements are assigned the same reference numbers.
  • the cable cutter comprises two parts 21 , 22 , not symmetrical with each other. It comprises a first part 21 being “C”-shaped, and a second complementary part 22 .
  • the branches of the C are defined by two planes R parallel to each other and extending tangentially to the bore 5 .
  • a first substantially semi-cylindrical portion of the bore 5 is carried by the first part, and a second complementary portion is carried by the second part 22 .
  • the distance between the parallel planes R is substantially equal to or greater than the diameter D 1 of the shaft.
  • a portion of the hub bore 5 carried by the first part 21 therefore comprises an opening with a width substantially equal to the diameter D 1 of the shaft, this opening extending between the planes R.
  • the shaft can be inserted transversally inside the first “C”-shaped part 21 , then the second complementary part, makes the cable cutter complete again. This can be done without it being necessary to remove the propeller, as for the embodiment of FIGS. 1 and 2 .
  • a bolt 13 allows the assembly and the holding, between them, of the parts 21 , 22 .
  • a hole 14 is provided in the hub 2 for receiving the bolt 13 .
  • the hole 14 is perpendicular to the planes R. It comprises, at one end of one branch of the “C”, a first wide zone 141 , —for receiving the head of the bolt 13 and a second zone 142 with a reduced diameter which extends the first in order to allow the body of the bolt to pass through.
  • the first zone opens onto the periphery of the hub.
  • the second zone opens onto a respective plane R.
  • the first and the second zone are unthreaded.
  • a third zone 144 threaded for engaging with the bolt 13 , is drilled opposite the second zone through the other branch of the “C”-shape.
  • the third zone extends between the respective plane R and periphery of the hub, of the other branch.
  • a fourth zone 145 is drilled through the second part 22 , for the adjusted passage of the body of the bolt 13 , and the holding in place of this second part relative to the first.
  • a locking screw 15 is also provided in a thread 16 through the hub, in the first part 21 .
  • FIG. 4 illustrates a part of a boat 30 , in the vicinity of a propeller 31 of the boat 30 .
  • the boat has a hull 32 .
  • a propeller shaft 1 leaves the hull 32 through a stern post 33 , and carries the propeller 31 at one end distant from the stern post 33 .
  • a bracket 34 ensures the support of the shaft between the stern post and the propeller, a first region 36 of the shaft 10 extending between the stern post and the bracket, and a second region 37 extending beyond the bracket, to the propeller.
  • a first cable cutter 10 is mounted in the first region 36 , in the vicinity of the stern post.
  • a second cable cutter 10 is mounted in the second region 37 .
  • the planes defining the two parts need not be parallel, providing they define an opening greater than or equal to the diameter of the propeller shaft.
  • the planes can be also replaced by other complementary shapes, comprising for example sawteeth for the mutual fitting together of the parts of the cable cutter.
  • a third cable cutter can be provided, arranged in the first region, so that there is a cable cutter on either side of the bracket.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Harvester Elements (AREA)
  • Flexible Shafts (AREA)
US12/095,753 2005-12-02 2006-12-01 Demountable Cable Cutter Abandoned US20080293313A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0512278A FR2894224B1 (fr) 2005-12-02 2005-12-02 Coupe filin demontable.
FR0512278 2005-12-02
PCT/FR2006/002631 WO2007063227A1 (fr) 2005-12-02 2006-12-01 Coupe-filin demontable

Publications (1)

Publication Number Publication Date
US20080293313A1 true US20080293313A1 (en) 2008-11-27

Family

ID=36658768

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/095,753 Abandoned US20080293313A1 (en) 2005-12-02 2006-12-01 Demountable Cable Cutter

Country Status (6)

Country Link
US (1) US20080293313A1 (fr)
EP (1) EP1963174B1 (fr)
AU (1) AU2006319021A1 (fr)
ES (1) ES2417144T3 (fr)
FR (1) FR2894224B1 (fr)
WO (1) WO2007063227A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110070784A1 (en) * 2009-09-24 2011-03-24 Ian Roberts Combination anode and line cutter
US8676804B1 (en) * 2011-07-12 2014-03-18 Google Inc. Managing information about entities using observations generated from user modified values
KR102105788B1 (ko) * 2019-02-26 2020-04-28 한국해양대학교 산학협력단 추진축계 이물질 절단을 위한 복합형 절단 장치

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104743089B (zh) * 2015-04-15 2017-01-04 浙江工业大学 一种船舶螺旋桨缠绕物切割装置
CN109367748B (zh) * 2018-11-28 2023-11-03 大连英蕴科技有限公司 一种船舶推进器及方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US67982A (en) * 1867-08-20 Richard harvey hudson
US413819A (en) * 1889-10-29 Pulley
US2281156A (en) * 1939-05-23 1942-04-28 Johnson Emil Drive for shallow water boats
US2346163A (en) * 1941-07-05 1944-04-11 Standard Register Co Combination roll and interchangeable wheel
US4447215A (en) * 1982-07-06 1984-05-08 Govan Donald T Propellor protecting devices
US4507091A (en) * 1983-04-04 1985-03-26 Govan Donald T Propeller protecting devices
US4938724A (en) * 1985-12-24 1990-07-03 Shaw Robin D Line cutting device
US20040072480A1 (en) * 2002-04-23 2004-04-15 Pither Allan Walter Propeller protector slipper

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2768120B1 (fr) * 1997-09-11 2000-03-03 Jean Claude Geron Coupe-filin
AU2002355362B2 (en) * 2001-08-08 2005-02-03 Robin David Shaw Cavitation alleviation and line cutting device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US67982A (en) * 1867-08-20 Richard harvey hudson
US413819A (en) * 1889-10-29 Pulley
US2281156A (en) * 1939-05-23 1942-04-28 Johnson Emil Drive for shallow water boats
US2346163A (en) * 1941-07-05 1944-04-11 Standard Register Co Combination roll and interchangeable wheel
US4447215A (en) * 1982-07-06 1984-05-08 Govan Donald T Propellor protecting devices
US4507091A (en) * 1983-04-04 1985-03-26 Govan Donald T Propeller protecting devices
US4938724A (en) * 1985-12-24 1990-07-03 Shaw Robin D Line cutting device
US20040072480A1 (en) * 2002-04-23 2004-04-15 Pither Allan Walter Propeller protector slipper

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110070784A1 (en) * 2009-09-24 2011-03-24 Ian Roberts Combination anode and line cutter
US8676804B1 (en) * 2011-07-12 2014-03-18 Google Inc. Managing information about entities using observations generated from user modified values
US8990211B1 (en) 2011-07-12 2015-03-24 Google Inc. Managing information about entities using observations
US9940381B1 (en) 2011-07-12 2018-04-10 Google Llc Managing information about entities using observations
KR102105788B1 (ko) * 2019-02-26 2020-04-28 한국해양대학교 산학협력단 추진축계 이물질 절단을 위한 복합형 절단 장치

Also Published As

Publication number Publication date
AU2006319021A1 (en) 2007-06-07
ES2417144T3 (es) 2013-08-06
EP1963174A1 (fr) 2008-09-03
WO2007063227A1 (fr) 2007-06-07
FR2894224B1 (fr) 2009-01-16
EP1963174B1 (fr) 2013-04-17
FR2894224A1 (fr) 2007-06-08

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SOCIETE DELOT & CIE, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DELOT, FRANCK;REEL/FRAME:021025/0830

Effective date: 20080428

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION