WO2010112663A1 - Steering device for boats - Google Patents

Steering device for boats Download PDF

Info

Publication number
WO2010112663A1
WO2010112663A1 PCT/FI2009/000046 FI2009000046W WO2010112663A1 WO 2010112663 A1 WO2010112663 A1 WO 2010112663A1 FI 2009000046 W FI2009000046 W FI 2009000046W WO 2010112663 A1 WO2010112663 A1 WO 2010112663A1
Authority
WO
WIPO (PCT)
Prior art keywords
fin
boat
steering device
water
motor
Prior art date
Application number
PCT/FI2009/000046
Other languages
French (fr)
Inventor
Jussi Puotunen
Original Assignee
Jussi Puotunen
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 Jussi Puotunen filed Critical Jussi Puotunen
Priority to PCT/FI2009/000046 priority Critical patent/WO2010112663A1/en
Publication of WO2010112663A1 publication Critical patent/WO2010112663A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/30—Propulsive elements directly acting on water of non-rotary type
    • B63H1/32—Flaps, pistons, or the like, reciprocating in propulsive direction

Definitions

  • This invention relates to a steering device for boats, consisting of a power source, such as an electric motor, which is connected to a blade, which can be actuated by the motor to move in the water so as to transmit a propulsive force to the boat.
  • a power source such as an electric motor
  • a blade which can be actuated by the motor to move in the water so as to transmit a propulsive force to the boat.
  • Old-time steam-ships used to have vane wheels provided on each side of the ship, with the vanes touching the water surface, thus generating the propulsive force for the ship.
  • a steam-ship is basically a powered rowing boat, in which the oar blades have been radially fastened to the ends of a shaft mounted across the ship.
  • the propeller has been invented, which is a screw, or actually part of a screw, serving for force transmission in the axial direction.
  • This invention has the purpose of providing a new type of steering device for boats, which is unlike the above solutions known per se.
  • the steering device in accordance with the invention is characterised in that the blade is a fin penetrating through the bottom of the boat and connected to the flywheel/lever of the motor, which transmits a rotatory movement to the upper part of the fin and in that the fin is supported and guided in an elongated opening through the bottom of the boat, in which the fin is allowed upward and downward movement while the lower part of the fin describes an onion-shaped rotatory movement under the boat. Consequently, with the aid of the invention, a very straightforward steering device generates strong propulsion for any boat by means of a fin actuated in the water under the bottom of the boat.
  • This propulsion can replace the propelling/steering movement generated by the thruster of a sailing boat, for instance.
  • the thruster of a sailing boat is located in a passage in the prow of the boat. Such a passage always generates turbulence in the water, which in turn acts as a braking force.
  • the invention is chiefly intended for use as a thruster in a sailing boat, but is also applicable to motor boats and ships. While the steering device is unoperated, the fin is retracted into the hull so as to provide an even surface on the bottom of the boat. The device does not generate any kind of braking forces.
  • Figure 1 is a longitudinal view of the steering device
  • Figure 2 is a lateral view of the steering device
  • Figure 3 is a top view of the steering device
  • Figure 4 is an axonometric view of the steering device
  • Figure 5 illustrates the movement of the fin of the steering device viewed in the longitudinal direction of the boat.
  • Th steering device for boats consists of a power source, such as an electric motor 1, which is connected to a blade 2, which can be actuated by the motor 1 to move in the water so as to transmit a propulsive force to the boat.
  • the blade is an even plate- like fin 2 penetrating through the bottom of the boat and connected to the flywheel 9 of the motor, which transmits a rotatory movement 3 to the upper part of the fin 2.
  • the fin is supported and guided in an elongated opening 5 through the bottom 4 of the boat, in which the fin is allowed upward and downward movement while the lower part of the fin describes an onion-shaped rotatory movement 6 under the boat.
  • the opening 5 in the bottom of the boat 4 is provided with a water-proof slide bearing, which is an elongated revolving shaft 7 having an elongated water-proof opening, in which the fin 2 is allowed reciprocating movements while sealed from the water.
  • the steering device is mounted in a water-proof housing 8.
  • An automatic bilge-water pump can be provided within the housing 8 in the event that slight leakage would occur in the sliding bearing after heavy use, for instance.
  • a pin 10 is provided on the outer circumference of the flywheel 9 of the motor, the fin 2 being fastened to this pin.
  • the flywheel 9 can be provided with a counterbalance with a view to achieve balance.
  • a reduction gear 11 is provided between the motor 1 and the flywheel 9 (not indispensable).
  • the steering device is equipped with control electronics known per se, by means of which the boat can be steered.
  • the steering device has the following operation:
  • the operation of the device is based on the specific movement of the fin.
  • the fin 2 plunges into the water in an oblique position from the upper side of the boat bottom 4 while revolving simultaneously, so that it brings the boat into movement. Having reached its one extreme position, the fin rises back to a position above the bottom and is turned by a mechanism into its other extreme position above the bottom, where the following cycle starts as the fin replunges while revolving in an oblique position under the bottom.
  • the operating direction of the propeller is reversed by reversing the rotating direction of the device.
  • the invention has the following essential features: the fin penetrates through the boat bottom to plunge into the water at the very same point where it rises from the water back to the upper side of the bottom, and the fin articulated in the bottom is capable of generating a propulsive force for the boat.
  • the steering device has the following additional functions:
  • the fin can be turned up in the direction of the vertical axis, where it acts as a "propeller” without a shaft or a hub.
  • the device can be used as "main propulsion" in forward movement, either in sailing boats, when a bottom with a maximally even surface is desired during sailing, or in boats penetrating through reeds. It could also be used as the main propulsive force in fast-moving ships, and then only the tip portion would have a surface area, or a semi-passage could be provided in the bottom, so that only the tip portion is in the water when the ship rises to glide on the water surface.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)

Abstract

This invention relates to a steering device for boats, consisting of a power source, such as an electric motor (1), which is connected to a blade (2), which can be actuated by the motor (1) to move in the water so as to transmit a propulsive force to the boat. The blade is a fin (2) penetrating through the bottom of the boat and connected to the flywheel/lever of the motor, which transmits a rotatory movement (3) to the upper part of the fin (2). The fin is supported and guided in an elongated opening (5) through the bottom (4) of the boat, in which the fin is allowed upward and downward movement while the lower part of the fin describes an onion-shaped rotatory movement (6) under the boat.

Description

Steering device for boats
This invention relates to a steering device for boats, consisting of a power source, such as an electric motor, which is connected to a blade, which can be actuated by the motor to move in the water so as to transmit a propulsive force to the boat.
Old-time steam-ships used to have vane wheels provided on each side of the ship, with the vanes touching the water surface, thus generating the propulsive force for the ship. A steam-ship is basically a powered rowing boat, in which the oar blades have been radially fastened to the ends of a shaft mounted across the ship. After the invention of the steam-ship, the propeller has been invented, which is a screw, or actually part of a screw, serving for force transmission in the axial direction.
This invention has the purpose of providing a new type of steering device for boats, which is unlike the above solutions known per se.The steering device in accordance with the invention is characterised in that the blade is a fin penetrating through the bottom of the boat and connected to the flywheel/lever of the motor, which transmits a rotatory movement to the upper part of the fin and in that the fin is supported and guided in an elongated opening through the bottom of the boat, in which the fin is allowed upward and downward movement while the lower part of the fin describes an onion-shaped rotatory movement under the boat. Consequently, with the aid of the invention, a very straightforward steering device generates strong propulsion for any boat by means of a fin actuated in the water under the bottom of the boat. This propulsion can replace the propelling/steering movement generated by the thruster of a sailing boat, for instance. The thruster of a sailing boat is located in a passage in the prow of the boat. Such a passage always generates turbulence in the water, which in turn acts as a braking force. The invention is chiefly intended for use as a thruster in a sailing boat, but is also applicable to motor boats and ships. While the steering device is unoperated, the fin is retracted into the hull so as to provide an even surface on the bottom of the boat. The device does not generate any kind of braking forces.
Various embodiments of the invention are defined in the dependent claims of the set of claims.
The invention is explained below with the aid of an example and with reference to the accompanying drawings, in which Figure 1 is a longitudinal view of the steering device, Figure 2 is a lateral view of the steering device, Figure 3 is a top view of the steering device, Figure 4 is an axonometric view of the steering device and Figure 5 illustrates the movement of the fin of the steering device viewed in the longitudinal direction of the boat.
Th steering device for boats consists of a power source, such as an electric motor 1, which is connected to a blade 2, which can be actuated by the motor 1 to move in the water so as to transmit a propulsive force to the boat. The blade is an even plate- like fin 2 penetrating through the bottom of the boat and connected to the flywheel 9 of the motor, which transmits a rotatory movement 3 to the upper part of the fin 2. The fin is supported and guided in an elongated opening 5 through the bottom 4 of the boat, in which the fin is allowed upward and downward movement while the lower part of the fin describes an onion-shaped rotatory movement 6 under the boat. The opening 5 in the bottom of the boat 4 is provided with a water-proof slide bearing, which is an elongated revolving shaft 7 having an elongated water-proof opening, in which the fin 2 is allowed reciprocating movements while sealed from the water. The steering device is mounted in a water-proof housing 8. An automatic bilge-water pump can be provided within the housing 8 in the event that slight leakage would occur in the sliding bearing after heavy use, for instance. A pin 10 is provided on the outer circumference of the flywheel 9 of the motor, the fin 2 being fastened to this pin. The flywheel 9 can be provided with a counterbalance with a view to achieve balance. A reduction gear 11 is provided between the motor 1 and the flywheel 9 (not indispensable). The steering device is equipped with control electronics known per se, by means of which the boat can be steered.
The steering device has the following operation:
The operation of the device is based on the specific movement of the fin. The fin 2 plunges into the water in an oblique position from the upper side of the boat bottom 4 while revolving simultaneously, so that it brings the boat into movement. Having reached its one extreme position, the fin rises back to a position above the bottom and is turned by a mechanism into its other extreme position above the bottom, where the following cycle starts as the fin replunges while revolving in an oblique position under the bottom. When the device is not operating, it can be blocked in a position with the fin above the bottom, and then the flow resistance caused by the fin will be negligible. The operating direction of the propeller is reversed by reversing the rotating direction of the device. The invention has the following essential features: the fin penetrates through the boat bottom to plunge into the water at the very same point where it rises from the water back to the upper side of the bottom, and the fin articulated in the bottom is capable of generating a propulsive force for the boat.
The steering device has the following additional functions:
The fin can be turned up in the direction of the vertical axis, where it acts as a "propeller" without a shaft or a hub. The device can be used as "main propulsion" in forward movement, either in sailing boats, when a bottom with a maximally even surface is desired during sailing, or in boats penetrating through reeds. It could also be used as the main propulsive force in fast-moving ships, and then only the tip portion would have a surface area, or a semi-passage could be provided in the bottom, so that only the tip portion is in the water when the ship rises to glide on the water surface.

Claims

Claims
1. A steering device for boats, consisting of a power source, such as an electric motor (1), which is connected to a blade (2), which can be actuated by the motor (1) to move in the water so as to transmit a propulsive force to the boat, characterised in that the blade is a fin (2) penetrating through the bottom of the boat and connected to the motor, which transmits a rotatory movement (3) to the upper part of the fin (2), and in that the fin is supported and guided in an elongated opening (5) through the bottom (4) of the boat, in which the fin is allowed upward and downward movement while the lower part of the fin describes an onion-shaped rotatory movement (6) under the boat.
2. A steering device as defined in claim 1, characterised in that the opening (5) in the bottom of the boat (4) is provided with a water-proof slide bearing, which is an elongated revolving shaft (7) having an elongated water-proof opening, in which the fin (2) is allowed reciprocating movements while sealed from the water.
3. A steering device as defined in claim 1 or 2, characterised in that the steer- ing device is mounted in a water-proof housing (8).
4. A steering device as defined in claim 3, characterised in that an automatic bilge-water pump is provided within the housing (8).
5. A steering device as defined in any of the preceding claim, characterised in that the motor is equipped with a flywheel (9), with the fin (2) fastened to a pin (10) provided on the outer circumference of the flywheel.
6. A steering device as defined in claim 5, characterised in that the flywheel (9) is provided with a counterbalance.
7. A steering device as defined in any of the preceding claims, characterised in that a reduction gear (11) is provided between the motor (1) and the flywheel (9).
8. A steering device as defined in any of the preceding claims, characterised in that the steering device is equipped with control electronics known per se, by means of which the boat can be steered.
PCT/FI2009/000046 2009-04-02 2009-04-02 Steering device for boats WO2010112663A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/FI2009/000046 WO2010112663A1 (en) 2009-04-02 2009-04-02 Steering device for boats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI2009/000046 WO2010112663A1 (en) 2009-04-02 2009-04-02 Steering device for boats

Publications (1)

Publication Number Publication Date
WO2010112663A1 true WO2010112663A1 (en) 2010-10-07

Family

ID=42827514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2009/000046 WO2010112663A1 (en) 2009-04-02 2009-04-02 Steering device for boats

Country Status (1)

Country Link
WO (1) WO2010112663A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107344609A (en) * 2016-01-20 2017-11-14 朱保生 A kind of electric ship and its method of work with overload protection
KR102125713B1 (en) * 2020-01-17 2020-06-23 이양운 Power transmission gear unit for propulsion of ships or boats

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2447028A1 (en) * 1974-10-02 1976-04-08 Jean Joubert Compact small boat propulsion - with oscillating flat paddle in duct under stern driven by crank assembly
FR2544689A1 (en) * 1983-04-20 1984-10-26 Richard Bruno Means of propulsion for boats intended to travel in particular on waters which are cluttered with dense or very dense surface vegetation
JPH0490994A (en) * 1990-08-02 1992-03-24 Manabu Ueda Advancing machine
CN101249881A (en) * 2008-03-29 2008-08-27 王志成 Flat paddle square tube propeller for ship crafts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2447028A1 (en) * 1974-10-02 1976-04-08 Jean Joubert Compact small boat propulsion - with oscillating flat paddle in duct under stern driven by crank assembly
FR2544689A1 (en) * 1983-04-20 1984-10-26 Richard Bruno Means of propulsion for boats intended to travel in particular on waters which are cluttered with dense or very dense surface vegetation
JPH0490994A (en) * 1990-08-02 1992-03-24 Manabu Ueda Advancing machine
CN101249881A (en) * 2008-03-29 2008-08-27 王志成 Flat paddle square tube propeller for ship crafts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107344609A (en) * 2016-01-20 2017-11-14 朱保生 A kind of electric ship and its method of work with overload protection
KR102125713B1 (en) * 2020-01-17 2020-06-23 이양운 Power transmission gear unit for propulsion of ships or boats

Similar Documents

Publication Publication Date Title
EP2493754B1 (en) Powered water sports board
US7131385B1 (en) Method for braking a vessel with two marine propulsion devices
JP4299968B2 (en) Propulsion system
FI115128B (en) Watercraft Propulsion System and Method for Using a Watercraft Propulsion System
US8845369B2 (en) Vessel
JPS6127237B2 (en)
CN108423118A (en) A kind of unmanned boat using wave advance
CN107651150A (en) A kind of all-rotation thrust unit
EP1013544A2 (en) Azimuth propeller apparatus and ship equipped with the apparatus
CN108639297A (en) A kind of high-efficient low-noise hybrid propulsion device and method suitable for high performance craft
KR101271755B1 (en) Brake apparatus and braking method of ship
WO2010112663A1 (en) Steering device for boats
CN208198727U (en) A kind of unmanned boat using wave advance
CN213323639U (en) Fixed semi-submerged oar advancing device
CN112441209A (en) Double-guide-vane bidirectional-inflow shaftless side-pushing device
EP2443030B1 (en) Boat propulsion and steering system with fully submerged rotors
CN113636057B (en) Separating rudder capable of realizing forward and reverse rudder conversion
JP2012224096A (en) Ship propulsion apparatus and ship
CN211076299U (en) High-thrust spiral propeller for ship
CN209142367U (en) A kind of straight wing rudder of novel ship
CN107640306B (en) Marine propulsion device, ship and running control method thereof
FI120296B (en) Boat control unit
CN202557780U (en) Buoyancy carried drive device
CN201371928Y (en) Power surfboard
JP2980378B2 (en) Ship water jet propulsion device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09842546

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09842546

Country of ref document: EP

Kind code of ref document: A1