WO2002076822A1 - Dispositif de propulsion marine - Google Patents

Dispositif de propulsion marine Download PDF

Info

Publication number
WO2002076822A1
WO2002076822A1 PCT/AU2002/000376 AU0200376W WO02076822A1 WO 2002076822 A1 WO2002076822 A1 WO 2002076822A1 AU 0200376 W AU0200376 W AU 0200376W WO 02076822 A1 WO02076822 A1 WO 02076822A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
engine
shaft
propeller
swivel
Prior art date
Application number
PCT/AU2002/000376
Other languages
English (en)
Inventor
Robert Allen
Original Assignee
Robert Allen
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 Robert Allen filed Critical Robert Allen
Priority to US10/472,973 priority Critical patent/US20040092176A1/en
Publication of WO2002076822A1 publication Critical patent/WO2002076822A1/fr
Priority to NZ529127A priority patent/NZ529127A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/10—Motor-propelled water sports boards
    • 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
    • B63H5/18—Arrangements on vessels of propulsion elements directly acting on water of propellers of emergency propellers, e.g. arranged at the side of the vessel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/14—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
    • 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
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • 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
    • B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
    • 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 a marine or maritime propulsion device and, in particular, to a brush cutter device with a propeller attachment that is mounted to a marine or riverine craft to propel it over or through the water.
  • the object is preferably achieved with a pre-existing brush cutter device of the user who is then able to purchase a propeller attachment at low cost and then assemble a modified brush cutter device including the propeller.
  • the tube housing the shaft of the propulsion device is mounted on a swivel attached to the stern of the craft. This permits the person controlling the propulsion device to vary the angle at which the propeller shaft engages the water.
  • the swivel allows rotation of the tube in azimuth relative to the swivel in order to steer the craft. Therefore, there is no need for a rudder.
  • the depth at which the propeller sits in the water may also be varied by adjusting the altitude angle of the tube. This is particularly useful when travelling across shallow water.
  • the swivel preferably permits the tube to slide longitudinally through the swivel to bring the propeller either closer to, or further from, the "stern" of the craft.
  • this marine propulsion device is not limited to the propulsion of boats and has equal application in the propulsion of surfboards, surf skis and like craft.
  • craft within this category have relied on a user paddling, the wind or the waves to propel them through the water. This can often be a laborious or time consuming method of propulsion.
  • a marine propulsion attachment for a brush cutter device comprising an engine and a first shaft rotatably mounted within a tube and rotatable by said engine, said attachment comprising a propeller connected to a second shaft, a protective shroud for said propeller and rotatably supporting said second shaft, and connection means to interconnect said shafts to permit their simultaneous rotation by said engine.
  • a marine or riverine craft propulsion device comprising a brush cutter having an engine, a shaft rotatably mounted within a tube and rotatable by said engine, a propeller rotatably mounted within a protective shroud for said propeller and rotatable by said shaft, a mounting swivel adapted to be mounted on said craft receiving said tube and permitting longitudinal movement of said tube relative to said swivel, rotation of said tube in an azimuth plane relative to said swivel, and rotation of said tube in altitude relative to said swivel.
  • a surfboard, surf ski or like craft having an upper person supporting surface and an under surface
  • a brush cutter device having an engine, a shaft rotatably mounted within a tube and rotatable by said engine, a propeller rotatably mounted within a protective shroud for said propeller and rotatable by said shaft, said tube and shaft being substantially aligned with the longitudinal axis of said craft and passing therethrough between said surfaces, said engine being located above said upper surface and said propeller being located below said lower surface, whereby said propeller is rotatable by said engine to advance said craft through water, and said craft is steerable by altering the weight distribution of the person using said surfboard, surf-ski or like craft.
  • Fig. 1 is a perspective view of a prior art brush cutter with its the brush cutting attachment disconnected from the engine-driven shaft
  • Fig. 2 is a perspective view of a first embodiment of the marine propulsion attachment
  • Fig. 3 is a side perspective view of the attachment of Fig. 2,
  • Fig. 4 is an end view of the attachment
  • Fig. 5 is a cross-sectional view of the attachment taken along the line V-V of Fig. 4
  • Fig. 6 is an enlarged view of the interior of a drive reduction gear box able to be located within the attachment of Fig. 2-5,
  • Fig. 7 is a partial view of an alternative pair of bevelled gears for use in the gear box of Fig. 6,
  • Fig. 8 is a side view of a dingy embodiment in use
  • Fig. 9 is a plan view of the dingy of Fig. 8,
  • Fig. 10 is a side view of a canoe embodiment in use
  • Fig. 11 is a side view of a surf-ski embodiment
  • Fig. 12 is a plan view of the surf-ski of Fig. 11,
  • Fig. 14 is a partial plan view of the front of the surf-ski of Fig 11,
  • the prior art brush cutter 1 takes the form of a shaft 2 housed within a tube 3 and connected such that the shaft 2 is rotatable by an engine 4.
  • the engine drives the rotation of the shaft 2 via a centrifugal clutch (conventional - but not illustrated).
  • a brush cutting attachment 5 can be connected to, and disconnected from, the free end 6 of the shaft 2 by various conventional means including threaded engagement or fasteners of various types (not illustrated).
  • the speed of the shaft 2 generated by the engine 4 is approximately 6,000 revolutions per minute (rpm) since this is a practical speed for use of the device as a brush cutter.
  • rpm revolutions per minute
  • a shaft speed of approximately 3,000 rpm is preferable to accommodate such propellers.
  • This reduction in engine speed is achieved through the incorporation of a drive reduction gear box 20, the interior of which is illustrated in Fig. 6.
  • the gear box 20 is preferably incorporated into the attachment 7 at the junction of the shafts 2 and 8.
  • the head 59 further includes a pair of jaws 64 which clamp on a portion of the shaft 3 to thereby retain it.
  • the jaws 64 are hingedly mounted so that one jaw is attached to the tab 58 and a screw 65 and wing nut 66 engage a tab 67 on each jaw to clamp the jaws to the shaft 3 or allow the jaws to open about their hinge to release the shaft 3.
  • a second embodiment of a canoe 40 is illustrated in Fig 10 where the tube 3 is mounted on a swivel 36 as before but offset from the side of the canoe 40.
  • the bracket 50 of the swivel 36 is configured to mount to the side wall of the canoe 40.
  • a third embodiment of a surf-ski 43 is illustrated in Figs. 11-14 where tube 3 and shaft 2 pass through the centre of the surf-ski 43.
  • the engine 4 is above the supporting surface 44 and includes only one protective shroud 12 which is below the immersed surface 45.
  • the surf-ski 43 is steerable by the user changing his weight distribution on the supporting surface 44.
  • the engine end of the tube 3 can be supported by the free end of a tiller like arrangement.
  • an electric motor can replace the petrol engine 4 and the term 'engine' is understood to include such a motor.

Abstract

L'invention concerne un accessoire de propulsion marine (7) destiné à un dispositif de type débroussailleuse équipé d'un moteur et d'un premier arbre (2) monté à l'intérieur d'un tube (3) et pouvant tourner sous l'action dudit moteur. Cet accessoire (7) comprend une hélice (10) reliée à un second arbre, un épaulement de protection (12) destiné à cette hélice (10) et supportant le second arbre de manière rotative, ainsi qu'un organe de raccordement permettant de relier lesdits arbres de façon à permettre leur rotation simultanée sous l'action dudit moteur.
PCT/AU2002/000376 2001-03-27 2002-03-27 Dispositif de propulsion marine WO2002076822A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/472,973 US20040092176A1 (en) 2001-03-27 2002-03-27 Marine propulsion device
NZ529127A NZ529127A (en) 2001-03-27 2007-01-16 Marine propulsion device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPR4006A AUPR400601A0 (en) 2001-03-27 2001-03-27 Marine propulsion device
AUPR4006 2001-03-27

Publications (1)

Publication Number Publication Date
WO2002076822A1 true WO2002076822A1 (fr) 2002-10-03

Family

ID=3828012

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2002/000376 WO2002076822A1 (fr) 2001-03-27 2002-03-27 Dispositif de propulsion marine

Country Status (4)

Country Link
US (1) US20040092176A1 (fr)
AU (1) AUPR400601A0 (fr)
NZ (1) NZ529127A (fr)
WO (1) WO2002076822A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008147208A1 (fr) * 2007-05-25 2008-12-04 Rolls-Royce Marine As Système pour fixer une tuyère sur une structure qui forme un navire ou une partie de navire
WO2016048196A1 (fr) * 2014-09-25 2016-03-31 Obschestvo S Ogranichennoi Otvetstvennostiyu "Autex Ltd." Système de stabilisation active d'engin flottant de dimensions réduites

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004060010B3 (de) * 2004-12-14 2005-12-22 Atlas Elektronik Gmbh Unbemanntes Unterwasserfahrzeug
US20100104448A1 (en) * 2008-10-24 2010-04-29 Moore John K Flow restrictive edge profile exhibited upon a surface of a fluid propelled/propelling implement
US8808044B2 (en) 2012-12-21 2014-08-19 Gene L. Keough Power paddle
US9950776B2 (en) * 2013-10-22 2018-04-24 Aqua Marine Products, L.L.C. Weed-trimmer outboard motor
CN108528670A (zh) * 2018-05-23 2018-09-14 陈大海 一种螺旋桨防缠绕装置及其垃圾收集系统
CN110877707A (zh) * 2019-12-06 2020-03-13 苏州大学 一种新型前拉式航船
USD996338S1 (en) 2021-08-13 2023-08-22 Tridentis Advanced Marine Vehicles, LLC Underwater vessel hull

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604067A (en) * 1984-11-20 1986-08-05 Roberts Jimmy C Method and apparatus for converting line trimmer into a trolling motor
US4752256A (en) * 1986-10-30 1988-06-21 Florence Courcy Durand Boat propulsion device
US4976637A (en) * 1989-07-03 1990-12-11 Newell William K Outboard motor conversion kit
US5089348A (en) * 1989-07-03 1992-02-18 Louderback Lauren G Precured laminate overlay
US5405277A (en) * 1994-03-14 1995-04-11 Stalker; Harold D. Boat motor conversion apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550625A (en) * 1948-10-15 1951-04-24 Carl M Vick Sculling oarlock and mounting clamp therefor
US2975750A (en) * 1959-05-13 1961-03-21 Smith Laird Motorboat propelling and steering unit
US3826220A (en) * 1973-01-22 1974-07-30 C Jacobson Self-righting power-driven aquatic vehicle
US4311470A (en) * 1980-03-10 1982-01-19 Outboard Marine Corporation Trolling motor
US5083948A (en) * 1990-08-21 1992-01-28 Grobson Lonnie B Personal watercraft using string trimmer or similar power source
US5908339A (en) * 1997-08-21 1999-06-01 Vassoff; Matthew A. Modular gas-driven power distribution system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604067A (en) * 1984-11-20 1986-08-05 Roberts Jimmy C Method and apparatus for converting line trimmer into a trolling motor
US4752256A (en) * 1986-10-30 1988-06-21 Florence Courcy Durand Boat propulsion device
US4976637A (en) * 1989-07-03 1990-12-11 Newell William K Outboard motor conversion kit
US5089348A (en) * 1989-07-03 1992-02-18 Louderback Lauren G Precured laminate overlay
US5405277A (en) * 1994-03-14 1995-04-11 Stalker; Harold D. Boat motor conversion apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008147208A1 (fr) * 2007-05-25 2008-12-04 Rolls-Royce Marine As Système pour fixer une tuyère sur une structure qui forme un navire ou une partie de navire
WO2016048196A1 (fr) * 2014-09-25 2016-03-31 Obschestvo S Ogranichennoi Otvetstvennostiyu "Autex Ltd." Système de stabilisation active d'engin flottant de dimensions réduites

Also Published As

Publication number Publication date
AUPR400601A0 (en) 2001-04-26
US20040092176A1 (en) 2004-05-13
NZ529127A (en) 2007-05-31

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