WO1993007052A1 - Hydraulic man×uvring system for outboard motors on small and medium size boats - Google Patents

Hydraulic man×uvring system for outboard motors on small and medium size boats Download PDF

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Publication number
WO1993007052A1
WO1993007052A1 PCT/NO1991/000129 NO9100129W WO9307052A1 WO 1993007052 A1 WO1993007052 A1 WO 1993007052A1 NO 9100129 W NO9100129 W NO 9100129W WO 9307052 A1 WO9307052 A1 WO 9307052A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
manoeuvring
securement
cylinder
sleeve
Prior art date
Application number
PCT/NO1991/000129
Other languages
French (fr)
Inventor
Aage Eriksen
Original Assignee
Aage Eriksen
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 Aage Eriksen filed Critical Aage Eriksen
Publication of WO1993007052A1 publication Critical patent/WO1993007052A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H25/08—Steering gear
    • B63H25/14—Steering gear power assisted; power driven, i.e. using steering engine
    • B63H25/26—Steering engines
    • B63H25/28—Steering engines of fluid type
    • B63H25/30—Steering engines of fluid type hydraulic
    • 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
    • B63H20/08—Means enabling movement of the position of the propulsion element, e.g. for trim, tilt or steering; Control of trim or tilt
    • B63H20/10—Means enabling trim or tilt, or lifting of the propulsion element when an obstruction is hit; Control of trim or tilt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/02—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring
    • B63H2025/028—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring using remote control means, e.g. wireless control; Equipment or accessories therefor
    • 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
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines

Definitions

  • the invention is related to a system comprising hydraulic transmissions from a manoeuvring position in small or medium size boats and to a deflection of outboard motors in such boats.
  • Hydraulic control cylinders for rotation of motors for amending the movement direction of boats substantially are designed for larger outboard motors than is usual on small boats.
  • wire transmissions between the steering position and the motor are usual.
  • wire transmis ⁇ sions are too inexact and heavy for motors above a certain motor size and weight.
  • Manoeuvring systems are known as being manufactured for outboard motors where the displaceable pulling rod through the cylinder at both ends is connected with the shaft through the securement bracket of the motor to the stern of the boat.
  • the manoeuvring cylinder is arranged ahead and below the motor in the motor well. In this design the pulling rod and the shaft therefore are fixed and the manoeuvring cylinder is moving. Normally there is not space enough in boats of the present size in our part of the world for such movement, to allow for a large manoeuvring cylinder. Possible outcuts must be made on both sides of the motor well. Additionally hydraulic hoses must be guided to the cylinder to take up the movements transversally and to follow the tilting movement of the motor. Long flexible hoses in a motor well are as such not preferable.
  • the present invention provides for a system which avoids the disadvantages of existing techniques.
  • a sturdy and 5 reliable structure hereby being provided, requiring less space than existing systems and being simple to manufacture and install at low costs and which also can be adjusted to all known outboard motors with the help of only a few remedies.
  • Figure 1 discloses a sideview of the invention with the corresponding outboard motor
  • Figure 2 discloses a corresponding sideview as in Figure 1, however with the motor in a tilted position
  • Figure 3 discloses the invention in a front sketch as seen from the boat towards the stern.
  • the motor is tilted around a tilting shaft 2 in the securement bracket 9 which again is secured to the stern 7.
  • This tilting may be performed manually or by means of systems which are not part of the present invention.
  • securement brackets there exists a very small distance between the horizontal tilting shaft 2 and the stern 7 in. the motor well (e.g. the distance between the shaft 2 and the uppermost edge of the hatched area in Figure 2).
  • the stern is lowered to a portion exactly where the bracket is secured in such a way that the vertical distance between the tilting shaft and the uppermost ridge of the stern in the motor well, is reduced to nearly nothing.
  • the vertical distance is substantially smaller than the measured radius of present hydraulic manoeuvring cylinders.
  • Figure 1 and the front view of Figure 3 in combination disclose clearly how the horizontal tilting shaft in the securement bracket according to the invention, is shaped, as a fixed cylinder having a through going and rotatable pulling rod 2.
  • One end 20 of the rod is provided with threads for securement of a sleeve 21, as disclosed in the drawing.
  • the sleeve and the threaded portion have a through going bore and are provided with a through going bolt 22 for securement of the manoeuvring stay 4 to the rod 2.
  • the upper end of the manoeuvring stay 4 again is secured to the usual securement device 10 of the motor initially s adapted for normal manoeuvring by wire (see Figure 1 ) .
  • the rod 2 may rotate around its own axis as well as moved transversely (horizontally) and reciprocating in the pipe 23 of the securement bracket.
  • a ⁇ o rotatable casing In the outer end of the threaded sleeve is arranged a ⁇ o rotatable casing with a protruding arm.
  • This carrier casing 5 again is fixedly connected with the pulling rod 3 in the hydraulic manoeuvring cylinder 6.
  • the manoeuvring cylinder 6 is, as disclosed in Figure 1, secured between and partly through two fixed plain securement s devices 11. It is an important feature according to the invention that by tilting of the motor and thereby also the manoeuvring rod 4, the pulling rod 2 is rotated because of the through going bolt 22, due to the carrier casing 5 which can rotate on the sleeve, however the pulling rod 3 will remain in place in the manoeuvring o cylinder and the securement device 11 and the manoeuvring cylinder 6 remains in its fixed position. This represents a specially sturdy and reliable design.
  • the connection points 8 for the hydraulic fluid are not moved in relation to the motor movement. This again means that short, fixed supply hoses may be 5 connected with the points 8 from the bottom of the motor well.
  • the manoeuvring cylinder is by the described invention 5 clear of the stern of the boat and additionally capable of utilizing only the small distance towards the sidewalls in the motor well.
  • the manoeuvring mechanism substantially operates according to the present invention within the same limited motor well. It has been shown necessary in certain cases to take out a limited space in the side wall of the motor well to receive the outermost position of the steering stay. The maximum turning of the motor in all cases is achieved by small movements of the movable parts in the manoeuvring system.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Vehicle Body Suspensions (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

Hydraulic man÷uvring system for outboard motors for small and medium size boats is described, where the man÷uvring cylinder (6) is secured between the securement brackets (9) for the motor. The pulling rod of the cylinder is at its one end fixedly connected with a rotatable carrier casing (5) arranged on a sleeve (21), by means of a throughgoing bolt (22). The sleeve is connected with a rod (2) by means of the bolt and threaded connection. The sleeve by means of the bolt is establishing the one securement for the man÷uvring rod (4) which at its other end is connected with the securement (10) for the motor adapted for remote control.

Description

Hydraulic manoeuvring system for outboard motors on small and medium size boats
The invention is related to a system comprising hydraulic transmissions from a manoeuvring position in small or medium size boats and to a deflection of outboard motors in such boats.
Hydraulic control cylinders for rotation of motors for amending the movement direction of boats substantially are designed for larger outboard motors than is usual on small boats. By the remote control for such, wire transmissions between the steering position and the motor are usual. Such wire transmis¬ sions, however, are too inexact and heavy for motors above a certain motor size and weight.
Commercially accessible hydraulic manoeuvring systems have displaceable manoeuvring cylinders with throughgoing movable pulling rods and cannot simply be used in the motor well on the actual type of boats. As the motor is tilted around a horizontal axis and turned around the vertical axis, the connection between the manoeuvring system and the motor must allow for such movements. The securement of the manoeuvring cylinder alongside the motor, but with maintenance of the necessary moveability would demand larger outcuts in the stern of the boat and in the sidewalls of the motor well. Such manoeuvring cylinders secured in the side position therefore are not suitable for boats which are not specifically designed for such systems.
Manoeuvring systems are known as being manufactured for outboard motors where the displaceable pulling rod through the cylinder at both ends is connected with the shaft through the securement bracket of the motor to the stern of the boat. The manoeuvring cylinder is arranged ahead and below the motor in the motor well. In this design the pulling rod and the shaft therefore are fixed and the manoeuvring cylinder is moving. Normally there is not space enough in boats of the present size in our part of the world for such movement, to allow for a large manoeuvring cylinder. Possible outcuts must be made on both sides of the motor well. Additionally hydraulic hoses must be guided to the cylinder to take up the movements transversally and to follow the tilting movement of the motor. Long flexible hoses in a motor well are as such not preferable.
The present invention provides for a system which avoids the disadvantages of existing techniques. A sturdy and 5 reliable structure hereby being provided, requiring less space than existing systems and being simple to manufacture and install at low costs and which also can be adjusted to all known outboard motors with the help of only a few remedies.
The above is attained by means of a manoeuvring system according to the invention which is characterized by the features defined in the preceding claims.
The invention now is disclosed in detail by reference to the drawings where Figure 1 discloses a sideview of the invention with the corresponding outboard motor, Figure 2 discloses a corresponding sideview as in Figure 1, however with the motor in a tilted position, and Figure 3 discloses the invention in a front sketch as seen from the boat towards the stern.
As disclosed in Figure 2 the motor is tilted around a tilting shaft 2 in the securement bracket 9 which again is secured to the stern 7. This tilting may be performed manually or by means of systems which are not part of the present invention. By known securement brackets there exists a very small distance between the horizontal tilting shaft 2 and the stern 7 in. the motor well (e.g. the distance between the shaft 2 and the uppermost edge of the hatched area in Figure 2). Frequently, the stern is lowered to a portion exactly where the bracket is secured in such a way that the vertical distance between the tilting shaft and the uppermost ridge of the stern in the motor well, is reduced to nearly nothing. Even without a lowered portion for the securement bracket, the vertical distance is substantially smaller than the measured radius of present hydraulic manoeuvring cylinders.
Figure 1 and the front view of Figure 3 in combination disclose clearly how the horizontal tilting shaft in the securement bracket according to the invention, is shaped, as a fixed cylinder having a through going and rotatable pulling rod 2. One end 20 of the rod is provided with threads for securement of a sleeve 21, as disclosed in the drawing. The sleeve and the threaded portion have a through going bore and are provided with a through going bolt 22 for securement of the manoeuvring stay 4 to the rod 2. The upper end of the manoeuvring stay 4 again is secured to the usual securement device 10 of the motor initially s adapted for normal manoeuvring by wire (see Figure 1 ) . According to the invention the rod 2 may rotate around its own axis as well as moved transversely (horizontally) and reciprocating in the pipe 23 of the securement bracket.
In the outer end of the threaded sleeve is arranged a ιo rotatable casing with a protruding arm. This carrier casing 5 again is fixedly connected with the pulling rod 3 in the hydraulic manoeuvring cylinder 6.
The manoeuvring cylinder 6 is, as disclosed in Figure 1, secured between and partly through two fixed plain securement s devices 11. It is an important feature according to the invention that by tilting of the motor and thereby also the manoeuvring rod 4, the pulling rod 2 is rotated because of the through going bolt 22, due to the carrier casing 5 which can rotate on the sleeve, however the pulling rod 3 will remain in place in the manoeuvring o cylinder and the securement device 11 and the manoeuvring cylinder 6 remains in its fixed position. This represents a specially sturdy and reliable design. The connection points 8 for the hydraulic fluid are not moved in relation to the motor movement. This again means that short, fixed supply hoses may be 5 connected with the points 8 from the bottom of the motor well. When turning the motor to change the direction of the boat movement, the pulling rod 3 of the manoeuvring cylinder is displaced horizontally and moving also the throughgoing rod 2. The manoeuvring stay 4 fixedly connected with the rod 2 thereby o causes the motor to turn. As one of the main issues of the invention this may be performed in spite of very small space in the motor well and also if the motor is tilted as disclosed in Figure 2.
The manoeuvring cylinder is by the described invention 5 clear of the stern of the boat and additionally capable of utilizing only the small distance towards the sidewalls in the motor well. By rotation around the vertical rotation axis of the outboard motor, a certain gap must exist between the motor cover and the sidewalls in the motor well. The manoeuvring mechanism substantially operates according to the present invention within the same limited motor well. It has been shown necessary in certain cases to take out a limited space in the side wall of the motor well to receive the outermost position of the steering stay. The maximum turning of the motor in all cases is achieved by small movements of the movable parts in the manoeuvring system.
It has been shown, that commercially available hydrau¬ lic control cylinders according to the present invention may be reliably secured in the limited space which is available in normal motor wells for outboard motors on small or medium size boats.

Claims

Patent Claims
1. Hydraulic manoeuvring system for outboard motors for small and medium size boats, CHARACTERIZED IN the manoeuvring s cylinder (6) of the manoeuvring system being fixedly secured between and partly through two securement devices (11), each of which being arranged on one side of the motor securement bracket (9) connecting the motor to the stern (7) of the boat. These two securement devices (11) protruding inwardly into the motor well of the boat. The pulling rod (3) of the manoeuvring cylinder (6) in one of its ends being fixedly connected with a rotatable carrier casing (5) arranged on a sleeve (21) with a through-going bolt (22), the sleeve (21) by means of said bolt (22) and with meshing threads being connected with a rod (2) through the pipe of the securement bracket (9) for tilting the motor, and the sleeve (21) by means of said bolt (22) establishing one of the securements for a manoeuvring rod (4) which at its other end is connected with the securement (10) of the motor adapted for remote control.
2. Manoeuvring system for outboard motors according to claim 1, CHARACTERIZED IN hydraulic fluid being supplied to the fixedly arranged manoeuvring cylinder (6) through short, fixed supply houses connected to connection points (8) on the cylinder.
PCT/NO1991/000129 1990-04-10 1991-10-08 Hydraulic man×uvring system for outboard motors on small and medium size boats WO1993007052A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO901625A NO169881C (en) 1990-04-10 1990-04-10 HYDRAULIC CONTROL SYSTEM FOR SMALL AND MEDIUM BATH OUTBOARD ENGINE.

Publications (1)

Publication Number Publication Date
WO1993007052A1 true WO1993007052A1 (en) 1993-04-15

Family

ID=19893069

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1991/000129 WO1993007052A1 (en) 1990-04-10 1991-10-08 Hydraulic man×uvring system for outboard motors on small and medium size boats

Country Status (2)

Country Link
NO (1) NO169881C (en)
WO (1) WO1993007052A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4836812A (en) * 1988-03-18 1989-06-06 Brunswick Corporation Steering system for auxiliary marine engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4836812A (en) * 1988-03-18 1989-06-06 Brunswick Corporation Steering system for auxiliary marine engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Vol. 11, No. 347, M-641; & JP,A,62 125 996, Publ. 08-06-1987, (YUNIKASU KOGYO K.K.). *

Also Published As

Publication number Publication date
NO169881C (en) 1992-08-19
NO901625D0 (en) 1990-04-10
NO901625L (en) 1991-10-11
NO169881B (en) 1992-05-11

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