EP3549851A1 - Stützeinheit zur unterstützung eines aussenbordmotors eines bootes - Google Patents

Stützeinheit zur unterstützung eines aussenbordmotors eines bootes Download PDF

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Publication number
EP3549851A1
EP3549851A1 EP19000164.4A EP19000164A EP3549851A1 EP 3549851 A1 EP3549851 A1 EP 3549851A1 EP 19000164 A EP19000164 A EP 19000164A EP 3549851 A1 EP3549851 A1 EP 3549851A1
Authority
EP
European Patent Office
Prior art keywords
plate
support unit
boat
unit according
respect
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.)
Withdrawn
Application number
EP19000164.4A
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English (en)
French (fr)
Inventor
Giancarlo Storti
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.)
STORTI SpA
Original Assignee
Extender Srl
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 Extender Srl filed Critical Extender Srl
Publication of EP3549851A1 publication Critical patent/EP3549851A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/14—Transmission between propulsion power unit and propulsion element
    • B63H20/18—Transmission between propulsion power unit and propulsion element allowing movement of the propulsion element about a longitudinal axis, e.g. the through transom shaft

Definitions

  • the present invention refers in general to support devices which allow an outboard motor to be connected to the stern of a boat.
  • an outboard motor has an upper part that includes a propulsion unit, for example consisting of a heat engine, which is connected by a drive shaft to a lower part of the motor called foot, usually provided with a thrust propeller.
  • the drive shaft extends along an elongated intermediate part of the motor, which is interposed between the propulsion unit and the foot.
  • the propeller is keyed on a respective shaft arranged substantially horizontal in the normal operation of the motor, which is connected to the drive shaft by a pair of toothed wheels.
  • a fixing bracket is arranged to be connected to the stern board of the boat, in order to allow the motor to be fixed on this stern board.
  • this fixing bracket allows both a swinging movement of the motor about a vertical axis, and a swinging movement of the motor about a horizontal axis transverse to the longitudinal direction of the boat.
  • a swinging movement of the outboard motor about this horizontal axis makes it possible to rotate it to lift the foot, both to facilitate landing operations in areas with shallow water, and to avoid its contact with submerged obstacles during navigation.
  • a rotation of the motor about the aforesaid horizontal swing axis can also be carried out to raise the foot of the motor in view of the boat-storage or transportation of the boat by a travel lift, particularly in the case of low weight outboard motors, to avoid removal of the motor from the stern board.
  • the outboard motor remains installed on the boat for the boat-storage, as it is usually preferred, it can be arranged in its attitude of navigation, or in a configuration rotated about the horizontal swing axis, with the motor foot in a position raised with respect to the usual configuration of navigation. In any case, the motor installed on the boat takes up a considerable space in height, which is particularly undesirable in view of the boat-storage.
  • the invention relates to a support unit for supporting an outboard motor of a boat, which comprises a first plate adapted to be rigidly connected to the stern board of the boat, a second plate separated from the first plate and intended to be connected to a fixing bracket of the outboard motor, and changing means for changing the mutual position of said first and second plates, operatively interposed therebetween.
  • Support units for outboard motors are known, which comprise a pair of parallel plates associated with each other by means of a four-bar linkage articulation mechanism which allows the position in height of the plate to which the bracket of the outboard motor is fixed, to be changed with respect to the plate for connection to the stern board.
  • the main object of the invention is to provide a support unit which allows the position of an outboard motor associated with the stern board of a boat to be changed, so as to minimize the space in height required for the motor, and therefore for the whole boat.
  • the change means for changing the position of said plates comprise a mechanism adapted to allow the second plate to rotate with respect to the first plate about an axis transverse to the first plate and substantially parallel to the longitudinal axis of the boat, locking means for locking the second plate in a position rotated by a desired angle with respect to the first plate being associated with said mechanism, so as to enable the outboard motor to be locked in an angled position with respect to its normal attitude for navigation.
  • the outboard motor of the boat can be rotated by a desired angle about a longitudinal axis of the boat, so that it can reach a configuration in which the height of the boat with the associated motor substantially corresponds to the height of the stern board or, in any case, of the boat without the motor, thus reducing the space in height necessary for its shelter for boat-storage.
  • a first support member extends cantilever from the first plate, such support member having an inner cavity in which a correspondingly shaped second support member is engaged, to which the second plate is coaxially rotatably connected, the latter bearing in a fast manner a toothed crown the teeth of which mesh with a toothed control wheel rotatably mounted about an axis transverse to said first support member.
  • the mechanism that allows the second plate to be rotated with respect to the first plate may be operated manually, or by means of a motorized drive that comprises a ratio-motor unit associated with the first support member.
  • the support unit comprises axial displacement means for axially displacing the second plate with respect to the first plate, which are operable manually by means of a mechanical drive, or by means of a hydraulically, pneumatically or electrically driven linear control actuator.
  • the displacement achieved by means of these axial displacement means enables the axial distance of the outboard motor with respect to the stern board to be easily and quickly adjusted, without involving a change in height of the position of the second plate with respect to the first one. More particularly, by virtue of this feature, the change of the axial distance of the outboard motor with respect to the stern board allows to avoid an interference of parts of the motor, during its rotation about a longitudinal axis of the boat, with members of the hull projecting behind the stern board, as is generally the case with inflatable boats. Moreover, by virtue of this feature, it is possible to change at will the position of the outboard motor along the longitudinal axis of the boat in order to change the position of the center of gravity of the boat, possibly during navigation, with the purpose of changing the navigation characteristics of the boat.
  • the first support member comprises a tubular portion in which the second support member is axially and slidably engaged, to allow the distance of said second plate to be telescopically changed with respect to said first plate.
  • said control actuator for displacing axially the second plate, together with the second support member, with respect to the first plate and to the respective support member is interposed between said first and second support members.
  • the axial distance of the second plate with respect to the first plate can be controlled by acting on a drive device of such an actuator, mounted inside the boat, which is able to cause a relative axial displacement of the second support member with respect to the first support member.
  • the boat 10 is provided at its rear end with a stern board 12 that extends between the ends of its sides, and to which an outboard motor 14 is connected by means of a support unit 16 according to the invention.
  • the motor 14 comprises an upper part 14a that includes the propulsion unit, and a lower part, or foot, 14b provided with a thrust propeller keyed on a respective shaft connected in rotation with a drive shaft extending between the part 14a and the part 14b, along an intermediate part of the motor 14.
  • the support unit 16 comprises a first plate 18 adapted to be rigidly connected, for example by means of bolts, to the stern board 12, and a second plate 20, separated from the plate 18, intended to be rigidly connected with a fixing bracket (not shown in detail) connected to the aforementioned intermediate part of the motor 14.
  • This device may be driven manually, or in a motorized manner, for example by means of a drive located inside the boat 10.
  • the plate 20 is substantially parallel to the plate 18.
  • a first support member 22 extends cantilever from the plate 18, from its side opposite to the stern board 12.
  • a first support member 22 has an elongated shape and an inner cavity in which a second support member 24, the shape of which corresponds to that of the member 22 and which is coaxial to it, is engaged, the plate 20 being connected to the support member 24 in order to be axially rotatable.
  • the cross-section of the support members 22 and 24 is preferably polygonal, for example square-shaped.
  • a toothed crown 26 is fixed to the plate 20, the teeth of which mesh with a toothed drive wheel 28 keyed onto a rotatable shaft that extends transversely to the general direction of the members 22 and 24.
  • the toothed crown 26 and the toothed wheel 28 are conical.
  • a possibly removable handle may be provided to control the rotation of the toothed wheel 28 in order to cause rotation of the toothed crown 26 and, with it, of the plate 20.
  • the toothed wheel 28 is keyed onto a shaft transverse to the support member 22, which extends outside the member 22 from a reduction unit 29 connected to a motor 30, for example of the hydraulic, pneumatic or electric type, which can be conveniently controlled by drive means arranged inside the boat 10.
  • the unit 16 by virtue of the meshing of the toothed wheel 28 and of the crown 26, and to the fact that the ratio-motor unit 29, 30 is usually of the irreversible type, allows the plate 20 to be locked in a preferred rotated position with respect to the plate 18, so that the same ratio-motor unit 29, 30 constitutes locking means which allows the second plate 20 to be locked in a position rotated by a desired angle with respect to the first plate 18.
  • a locking member (not shown in detail in the figures) can be provided, which includes for example a locking pin arranged so as to cross an area of the wall of the member 22, and having an end adapted to interfere with the outer surface of the member 24.
  • This locking pin can consist of a threaded rod intended to be driven manually by an outer knob, the thread of which engages a nut screw fixed on the wall of the member 22.
  • the support unit 16 allows the outboard motor 14 to be rotated by any angle, typically between 0 and 90°, with respect to the stern board 12, for example of 45°.
  • the gear wheel 28 is caused to rotate and, consequently, the toothed crown 26 is rotated by a desired angle, as shown by arrow A of Figure 5 , so as to draw into rotation the plate 20, and therefore the motor 14 connected to it.
  • the motor 14 undergoes a rotation about an axis transverse to the plate 22 and substantially parallel to the longitudinal axis of the boat 10, which allows its foot 14a to be raised laterally.
  • FIG. 16a Another embodiment of the support unit of the invention, here indicated 16a, is shown in Figures 8 to 15 of the drawings, being understood that parts equal to, or similar to, those of the previous embodiment are indicated by analogous reference numerals.
  • the parts already described with reference to the previous embodiment will not be described again, for the sake of brevity, being common to the embodiment described below.
  • the boat of Figures 8 to 11 is a pneumatic boat in which the rear ends of its inflatable side members 11 of the hull project behind with respect to the stern board 12.
  • the plates 18 and 20 of the unit 16a need to be previously spaced, so that the upper part 14a of the motor 14 and its foot 14b cannot interfere with the members 11.
  • the member 22 is axially and slidably mounted with respect to the member 24, so that these two members can extend telescopically.
  • the polygonal cross-section of the support members 22 and 24 allows a prismatic coupling between them to be achieved, so as to avoid their relative rotation.
  • the control of the relative sliding of the members 22 and 24, and therefore of the change of the axial distance between the plates 18 and 20, can be carried out manually, for example by means of a crank (not shown) connected to a mechanical drive such as a rack and toothed wheel mechanism.
  • a crank not shown
  • a mechanical drive such as a rack and toothed wheel mechanism.
  • the control of the aforementioned sliding can take place through a motorized drive comprising a linear actuator shown in the Figures and described below.
  • This linear actuator is interposed between the support members 22 and 24 in order to control their relative sliding and therefore the axial sliding of the plate 20 with respect to the plate 18 connected to the stern board 12.
  • the linear actuator 34 can be of any known type, for example having an electric, hydraulic or pneumatic drive, it is schematically shown in the drawings as a hydraulic actuator that comprises a double-acting cylinder 34 having an inner chamber at the opposite ends of which respective ducts 36, 38 are connected to supply/discharge a pressurized fluid, in order to move a piston (not shown in detail) fixed to a stem 40 slidable with respect to the cylinder 34.
  • the ducts 36, 38 are connected in a manner known per se to a distributor unit (not shown) arranged inside the boat 10a, so as to allow remote control of the change of the axial position of the plates 18 and 20, or of the motor 14, with respect to the stern board 12.
  • the motor 14 can be rotated about the axis transverse to the plates 18 and 20 and to the ring gear 26, in the direction indicated by arrow A of Figure 15 , as described for the previous embodiment, so as to bring it to a desired angled position, with its foot 14a raised laterally.
  • the axial displacement of the second plate 20 with respect to the first plate 18 can be carried out independently of the rotation of the second plate 20 with respect to the first plate 18, in order to modify the position of the outboard motor 14 along the longitudinal axis of the boat 10a, to change the navigation characteristics of this boat, possibly during navigation.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Actuator (AREA)
EP19000164.4A 2018-04-05 2019-04-01 Stützeinheit zur unterstützung eines aussenbordmotors eines bootes Withdrawn EP3549851A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102018000004255A IT201800004255A1 (it) 2018-04-05 2018-04-05 Gruppo di supporto per il sostegno di un motore fuoribordo di un'imbarcazione

Publications (1)

Publication Number Publication Date
EP3549851A1 true EP3549851A1 (de) 2019-10-09

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EP19000164.4A Withdrawn EP3549851A1 (de) 2018-04-05 2019-04-01 Stützeinheit zur unterstützung eines aussenbordmotors eines bootes

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EP (1) EP3549851A1 (de)
IT (1) IT201800004255A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100004406A1 (it) * 2021-02-25 2022-08-25 Selva S P A Dispositivo per il montaggio di un motore fuoribordo alla poppa di un natante
EP4067222A1 (de) * 2021-03-31 2022-10-05 Mitek S.r.l. Motorisiertes schiff und motorisierungseinheit eines schiffes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB547919A (en) * 1940-05-01 1942-09-17 Charles Samuel Johnson Improvements in outboard drives for motor boats
US2908243A (en) * 1956-04-27 1959-10-13 Charles E Erickson Retracting outboard propulsion and steering means for inboard engine boats
WO2004050477A1 (de) * 2002-12-03 2004-06-17 Supraventures Ag Wasserfahrzeug
EP3241735A1 (de) * 2016-05-05 2017-11-08 Ultraflex Spa Kombination eines antriebsaggregats und eines wasserfahrzeugs, verfahren zum antreiben eines wasserfahrzeugs und antriebsaggregat für ein wasserfahrzeug

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB547919A (en) * 1940-05-01 1942-09-17 Charles Samuel Johnson Improvements in outboard drives for motor boats
US2908243A (en) * 1956-04-27 1959-10-13 Charles E Erickson Retracting outboard propulsion and steering means for inboard engine boats
WO2004050477A1 (de) * 2002-12-03 2004-06-17 Supraventures Ag Wasserfahrzeug
EP3241735A1 (de) * 2016-05-05 2017-11-08 Ultraflex Spa Kombination eines antriebsaggregats und eines wasserfahrzeugs, verfahren zum antreiben eines wasserfahrzeugs und antriebsaggregat für ein wasserfahrzeug

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100004406A1 (it) * 2021-02-25 2022-08-25 Selva S P A Dispositivo per il montaggio di un motore fuoribordo alla poppa di un natante
EP4049923A1 (de) 2021-02-25 2022-08-31 Selva S.p.A. Vorrichtung zur befestigung eines aussenbordmotors am heck eines bootes
EP4067222A1 (de) * 2021-03-31 2022-10-05 Mitek S.r.l. Motorisiertes schiff und motorisierungseinheit eines schiffes

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Publication number Publication date
IT201800004255A1 (it) 2019-10-05

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