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WO2002051700A1 - Systeme de suspension pour hors-bord - Google Patents

Systeme de suspension pour hors-bord Download PDF

Info

Publication number
WO2002051700A1
WO2002051700A1 PCT/US2000/035232 US0035232W WO02051700A1 WO 2002051700 A1 WO2002051700 A1 WO 2002051700A1 US 0035232 W US0035232 W US 0035232W WO 02051700 A1 WO02051700 A1 WO 02051700A1
Authority
WO
WIPO (PCT)
Prior art keywords
watercraft
recited
deck
hull structure
hull
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.)
Ceased
Application number
PCT/US2000/035232
Other languages
English (en)
Inventor
John Ozga
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/US2000/035232 priority Critical patent/WO2002051700A1/fr
Publication of WO2002051700A1 publication Critical patent/WO2002051700A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/14—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected resiliently or having means for actively varying hull shape or configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/0081—Vibration isolation or damping elements or arrangements, e.g. elastic support of deck-houses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/005—Equipment to decrease ship's vibrations produced externally to the ship, e.g. wave-induced vibrations

Definitions

  • This invention relates to a suspension system for a speed boat. More specifically, the invention is a suspension system in which the deck of the boat is allowed to move in a controlled manner in the pitch, yaw and roll axes to absorb shock and increase the comfort of the boat's passengers.
  • an object of the present invention is to provide for dynamic control of the deck of a boat about the pitch, yaw and roll axes.
  • Another object of the present invention is to provide a dynamic control system or ride enhancement for the deck of a boat which is readily adaptable to a wide variety of hull designs, including single and multi-hull boat designs.
  • An additional object of the present invention is to further enhance dynamic control of the boat's deck through use of the aerodynamic restorative force created by an airfoil.
  • the present invention provides for the dynamic isolation of the deck, relative to the hull, to increase occupant comfort in a watercraft over a wide variety of water conditions, speeds, and directions relative to the waves.
  • the deck is mounted to the hull structure in a manner which permits relative motion of the deck structure to the hull in at least two independent axes.
  • the deck is mounted to the hull structure through a multiaxes pivot mounting.
  • the deck and hull structure are mounted together through a series of dampers which are oriented to alternate pitch, yaw and roll motion.
  • the suspension system provided for this purpose is extremely simple and rugged in structure and uses common, low cost components.
  • Figure 1 is schematic view from the stern of a mono-hull boat incorporating the principles of the present invention
  • Figure 2 is a bottom view of the boat seen in Figure 1 ;
  • Figure 3 is a side schematic view of the pivot joint located at the bow of the boat
  • Figure 4 is a schematic perspective view of the present invention as applied to a multi-hulled boat, more specifically a catamaran;
  • Figure 5 is a rear view of the embodiment shown in Figure 4.
  • Figure 6 shows an airfoil added to the embodiment shown in Figure 5;
  • Figure 7 is a side view of the embodiment shown in Figure 6.
  • a watercraft or boat 10 has a hull 20 and a separate deck 22.
  • the deck 22 contains the normal furnishings of a boat cockpit including steering means, a throttle and at the controls, operator seating and passenger seating.
  • the bow of the hull 20 and the deck 22 are pivotally connected together by a pivot joint 24.
  • the stern of the hull 20 and deck 22 are connected to one another by a left vertical shock assembly 28, a right vertical shock assembly 26, a right lateral shock assembly 30 and a left lateral shock absorber assembly 32.
  • the shock absorber assemblies 26, 28, 30 and 32 are secured by mounting brackets 27, 29, 31 and 33.
  • the mounting brackets 27, 29, 31 and 33 are of a variety suitable for the particular shock absorber assemblies 26, 28, 30 and 32 being used. Similarly, where secured to the deck 22, mounting brackets 35 and 37 of suitable style are used. As seen in Figures 1 and 2, in the first embodiment of the present invention the right side shock absorber assemblies 26 and 30 are mounted to the stern wall 21 at a common point, mounting bracket 35. The left side shock absorbers assemblies 28 and 32 are likewise mounted to the stern wall 21 at a common point, mounting bracket 37. While use of common mounting points is believed to offer ride enhancement benefits, it will be appreciated that individual mounting brackets on the stern for each shock absorber assembly could be employed.
  • shock absorber assemblies are illustrated and referred to as either vertical or horizontal, these terms are not intended to be strictly interpreted as the orientation of their respective assemblies.
  • the assemblies 26, 28, 30 and 32 can be provided in other orientations so long as vertical and horizontal components of movement will be attenuated by the overall system. Depending on the boat 10 design and the water conditions in which the boat 10 is intended to be operated, other orientations may prove to be more desirable.
  • the mounting brackets 35 and 37 themselves may also be positioned other than on the stern wall 21.
  • the brackets 35 and 37 may be positioned on the corner where the stern wall 21 meets the side walls or gunwalls of the boat 10.
  • the deck 22 of the boat 10 is free to pivot about pivot joint 24 and move within the hull 20 as controlled by shock absorber assemblies 26, 28, 30 and 32. Relative motion between the deck 22 and hull 20 is allowed in the pitch, yaw and roll axes to account for all possible wave induced motion. Based on the desired dynamic response characteristics of the boat 10, the lateral shock absorber assemblies 30 and 32 may have different spring and damping characteristics than the vertical shock absorber assemblies 26 and 28.
  • FIG. 4 and 5 another embodiment of the invention is shown.
  • the deck (not shown) is supported by a deck frame 48 mounted to a catamaran watercraft with left hull 40, right hull 42, forward transverse member 44 and rear transverse member 46 forming a rigid multi-hulled structure.
  • the deck frame 48 pivots about pivot joint 24, which has the same configuration as shown in Figure 3 and the rear portion of the deck frame 48 is movably connected to the rear transverse member 46 by right lower shock absorber assembly 50, left lower shock absorber assembly 52, right upper shock absorber assembly 54, and left upper shock absorber assembly 56.
  • each pair of left and right side shock absorbers, 56, 52, and 54 and 50 are not located on approximately orthogonal axes as in the prior embodiment. Movement of the deck relative to the hull structure is still allowed in the pitch, yaw and roll axes.
  • an airfoil 58 is rigidly mounted to the top of the deck frame 48 so as to be positioned above and generally aft of the occupant compartment or cockpit of the boat 10. As seen in Figure 7, the airfoil 58 is symmetrical about its chordal axis 59. When the watercraft 10 is moving forward, the aerodynamic effect of the airfoil applies a restorative force to the deck frame 48 to pivot it to a neutral position about the pitch axis. For example, when the fore end of deck frame 48 and deck are caused to be pitched upward relative to the aft end of the boat 10, the airfoil 58 is provided with an angle of attack relative to the airflow which applies an upward force to the airfoil 58 and to the deck frame 48.
  • the watercraft of the present invention provides a deck suspension system, controlling acceleration and shock, which enhances the ride comfort of the users. Furthermore, the watercraft with deck suspension system has the additional advantages in that:
  • the suspension could use fewer or more shock absorber assembly units.
  • the shock absorber assembly units could be user adjustable to tune the system to the wave conditions, etc.
  • the scope of the invention should be determined by the appended claims and their legal equivalence, rather than by the examples given.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

La présente invention concerne un bateau permettant le mouvement relatif de son pont (22) par rapport à sa structure de coque (20) de manière à améliorer le confort des occupants. Le pont est monté sur la structure de coque d'une manière (24) permettant le mouvement relatif de la structure de pont par rapport à la coque suivant au moins deux axes indépendants.
PCT/US2000/035232 2000-12-21 2000-12-21 Systeme de suspension pour hors-bord Ceased WO2002051700A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2000/035232 WO2002051700A1 (fr) 2000-12-21 2000-12-21 Systeme de suspension pour hors-bord

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/035232 WO2002051700A1 (fr) 2000-12-21 2000-12-21 Systeme de suspension pour hors-bord

Publications (1)

Publication Number Publication Date
WO2002051700A1 true WO2002051700A1 (fr) 2002-07-04

Family

ID=21742101

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/035232 Ceased WO2002051700A1 (fr) 2000-12-21 2000-12-21 Systeme de suspension pour hors-bord

Country Status (1)

Country Link
WO (1) WO2002051700A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2513294A (en) * 2013-02-27 2014-10-29 Ctruk Group Ltd Boats

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB560403A (en) * 1942-12-18 1944-04-03 Frederick Percival Daysh Armed cargo carrying hydroplane
US2617377A (en) * 1947-09-26 1952-11-11 William H Evans Boat construction
US3270701A (en) * 1964-10-09 1966-09-06 Kubas Joseph Stabilized watercraft and stabilizer for minimizing pitching and wave shock of small craft
US3479980A (en) * 1967-10-24 1969-11-25 Donald D Simmons Multipurpose sport vehicle chassis
US3528380A (en) * 1968-06-06 1970-09-15 John V Yost Trimaran with sprung center hull section
GB1254520A (en) * 1970-05-28 1971-11-24 Akira Ueda Water scooter
FR2451312A1 (fr) * 1979-03-14 1980-10-10 Vernier Gabriel Perfectionnements aux vehicules nautiques
US4237810A (en) * 1978-12-05 1980-12-09 Westfall Kirk M Hydrodynamically and aerodynamically designed boat
US4337715A (en) * 1978-06-08 1982-07-06 Pingon Pierre J De Articulated catamaran
DE4130657A1 (de) * 1991-09-16 1993-03-18 Helmut Piller Federung fuer wasserfahrzeuge
US5603281A (en) 1993-05-04 1997-02-18 Bombardier Inc. Watercraft seat suspension
US6019054A (en) * 1996-01-26 2000-02-01 Yamaha Hatsudoki Kabushiki Kaisha Cushioning apparatus for small watercraft
US6152062A (en) * 1997-05-30 2000-11-28 Yamaha Hatsudoki Kabushiki Kaisha Small watercraft with improved suspension system

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB560403A (en) * 1942-12-18 1944-04-03 Frederick Percival Daysh Armed cargo carrying hydroplane
US2617377A (en) * 1947-09-26 1952-11-11 William H Evans Boat construction
US3270701A (en) * 1964-10-09 1966-09-06 Kubas Joseph Stabilized watercraft and stabilizer for minimizing pitching and wave shock of small craft
US3479980A (en) * 1967-10-24 1969-11-25 Donald D Simmons Multipurpose sport vehicle chassis
US3528380A (en) * 1968-06-06 1970-09-15 John V Yost Trimaran with sprung center hull section
GB1254520A (en) * 1970-05-28 1971-11-24 Akira Ueda Water scooter
US4337715A (en) * 1978-06-08 1982-07-06 Pingon Pierre J De Articulated catamaran
US4237810A (en) * 1978-12-05 1980-12-09 Westfall Kirk M Hydrodynamically and aerodynamically designed boat
FR2451312A1 (fr) * 1979-03-14 1980-10-10 Vernier Gabriel Perfectionnements aux vehicules nautiques
DE4130657A1 (de) * 1991-09-16 1993-03-18 Helmut Piller Federung fuer wasserfahrzeuge
US5603281A (en) 1993-05-04 1997-02-18 Bombardier Inc. Watercraft seat suspension
US6019054A (en) * 1996-01-26 2000-02-01 Yamaha Hatsudoki Kabushiki Kaisha Cushioning apparatus for small watercraft
US6152062A (en) * 1997-05-30 2000-11-28 Yamaha Hatsudoki Kabushiki Kaisha Small watercraft with improved suspension system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2513294A (en) * 2013-02-27 2014-10-29 Ctruk Group Ltd Boats

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