WO2003039945A1 - Pivotable boat seat - Google Patents

Pivotable boat seat Download PDF

Info

Publication number
WO2003039945A1
WO2003039945A1 PCT/AU2002/001497 AU0201497W WO03039945A1 WO 2003039945 A1 WO2003039945 A1 WO 2003039945A1 AU 0201497 W AU0201497 W AU 0201497W WO 03039945 A1 WO03039945 A1 WO 03039945A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
cushion
squab
linkage
locking mechanism
Prior art date
Application number
PCT/AU2002/001497
Other languages
French (fr)
Inventor
Matthew Stephen Frisina
Original Assignee
Matthew Stephen Frisina
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 Matthew Stephen Frisina filed Critical Matthew Stephen Frisina
Priority to US10/496,157 priority Critical patent/US7252336B2/en
Priority to AU2002335941A priority patent/AU2002335941B2/en
Publication of WO2003039945A1 publication Critical patent/WO2003039945A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1695—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable with simultaneous height and inclination adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/1807—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the cinematic
    • B60N2/1821—Combination of Rods and slides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/1807—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the cinematic
    • B60N2/1839—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the cinematic pivoting about an axis located in an intermediate position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/1892—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by a lock
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/1896—Stepwise movement mechanisms, e.g. ratchets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/20—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B29/00—Accommodation for crew or passengers not otherwise provided for
    • B63B29/02—Cabins or other living spaces; Construction or arrangement thereof
    • B63B29/04—Furniture peculiar to vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2002/247—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles to support passengers in a half-standing position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B29/00—Accommodation for crew or passengers not otherwise provided for
    • B63B29/02—Cabins or other living spaces; Construction or arrangement thereof
    • B63B29/04—Furniture peculiar to vessels
    • B63B2029/043—Seats; Arrangements thereof on vessels

Definitions

  • the present invention relates to seats where the user often leans against the seat rather than sits upon it.
  • Such seats have common application in the field of aquatic vessels and the invention will hereinafter be described with reference to this application but the invention is by no means limited to this application.
  • the term "cushion" in respect of a seat is used to denote the portion of the seat adapted to support the buttocks of a user of the seat.
  • the cushion While commonly the cushion will incorporate some type of padding adapted to accommodate the buttocks comfortably, the term is intended to encompass supports for buttocks which are rigid such as the types often made from plastics material of metal.
  • squab is used to denote a portion of the seat adapted to support the back of the user and again may incorporate padding or may be of rigid construction.
  • the present invention resides in a seat having a seat cushion and a squab, the seat being adjustable between a first configuration adapted to provide seating accommodation for a user and a second configuration adapted to provide leaning accommodation for a user, wherein in the second configuration, the squab is positioned forwardly of its position in the first configuration and substantially above the forward most position of the seat cushion.
  • the seat cushion is adapted to be pivotally supported from a base structure for pivotal movement about a transverse axis between its first and second positions.
  • the seat cushion in its second configuration, is positioned obliquely, the forward edge being at a lower height than the rear edge.
  • a linkage is provided between the base structure, the seat cushion and the squab whereby pivotal movement of the seat cushion between the first and second position causes corresponding movement of the squab.
  • the linkage is in the form of a trapezoidal linkage.
  • the linkage is in the form of a parallelogram linkage.
  • the linkage comprises a set of arms rotatably engaged with the squab and engaging the cushion to permit relative movement between the cushion and the squab during the pivotal movement of the cushion between the first and second positions.
  • each of the arms of the linkage are slidably received by a collar engaged with the cushion.
  • a releasable locking mechanism is provided to retain the seat cushion and squab in at least one of the first position and the second position.
  • the releasable locking mechanism is further adapted to retain the seat cushion and squab in at least one selected position intermediate the first position and the second position.
  • the releasable locking mechanism is selectably engagable with the linkage .
  • the releasable locking mechanism is associated with at least one of the collars.
  • the locking mechanism comprises at least one reciprocally actuated pin adapted to engage the linkage through a respective collar.
  • the locking mechanism comprises at least one rotatable member having an arm adapted to engage an aperture in the linkage.
  • Figure 1 is a front perspective view of a seat in accordance with the first embodiment showing the cushion and squab in a seating position;
  • Figure 2 is a front perspective view of a seat in accordance with the first embodiment showing the cushion and squab in a leaning position;
  • Figure 3 is a rear perspective view of a seat in accordance with the first embodiment showing the cushion and squab in the leaning position.
  • Figure 4 is a rear perspective view of a seat in accordance with the second embodiment showing the cushion and squab in the leaning position.
  • the embodiment of the invention is directed to a seat adapted for use in a vessel such as a powerboat.
  • the seat 11 comprises a cushion 12 and a squab 16
  • the terms upwards, downwards forwards and rearwards will be used with reference to the seat as installed within the vessel, forward corresponding to the forwards direction of the vessel.
  • the cushion 12 is secured to a mounting plate 13 and is substantially of a form that is well known in the art.
  • the sides 14 of the mounting plate 13 are upwardly formed to support an upwardly extending cushion-side-support member 15 at each side of the cushion 12 to provide lateral support to the user.
  • the cushion 12 and cushion-side-support members 15 are integrally formed.
  • the squab 16 is also of substantially conventional form and supported by a back- plate 17.
  • Each side 18 of the back-plate 17 extends forwardly to support a squab- side-support member 19 at each side of the squab 16 to provide lateral support to the user.
  • the squab 16 and squab-side support members 19 are integrally formed.
  • the mounting plate 13 supporting the cushion 12 is mounted to a rectangular planar support plate 21 , the front edge 22 of which is hingedly engaged with the underside of the mounting plate 13 intermediate the front and rear edges thereof to provide a rotational axis A-A of the planar support plate 21 relative to the mounting plate 13, the axis A-A being parallel to the front and rear edges of the mounting plate 13.
  • the rectangular planar plate 21 is secured to a first end of a pedestal 23, the opposed second end thereof being mounted to the vessel by means of a pedestal base 24.
  • the cushion 12 may be rotated between a substantially horizontal orientation suitable for seating of the user, to an oblique position suitable to support the user in a leaning position.
  • the embodiment may be easily adapted to other types of mounting other than that of a pedestal since the seat 11 itself is fully supported from the planar plate 21.
  • Other means of mounting the planar plate 21 to the vessel will be suitable and thus the seat is easily adapted to the wide variety of configurations of vessels that are presently available on the market.
  • a pair of tubular members 25 is rotatably pinned to each side of the planar plate 21. Each tubular member slidingly engages a collar 27 rotatably secured to the upwardly extending side portion 14 of the mounting plate 13.
  • the tubular members 25 are also rotatably pinned to the forwardly extending portion 18 of the back-plate 17 supporting the squab 16.
  • the tubular members 25 of each pair of tubular members are parallel to each other and are pinned to the planar support plate 21 and the side portions 18 of the back-plate 17 so that the four-pinned points of each pair of tubes forms a parallelogram.
  • the squab 16 is able to move forwardly / rear-wardly relative to the planar plate 21 while being maintained in substantially the same vertical orientation.
  • the configuration of the four pinned points on each side may be made trapezoidal. By such configuration, the angular orientation of the squab 16 may be made to vary somewhat as it moves forwardly, according to the preferences of the designer.
  • the sliding engagement of the tubular members 25 within the collars 27 attached to the side portions 14 of the mounting plate 13 supporting the cushion 12 provides a configuration whereby when the cushion 12 is rotated relative to planar plate 21 , the tubular members 25 are also forced to rotate relative to the planar plate 21 thereby changing the configuration of the parallelogram so that the squab 16 is urged forward when the front of the cushion 12 is urged from a substantially horizontal position to an oblique position.
  • a guide handle 28 is provided, supported by the pins which pin the tubular members to the side portion 18 of the back plate 17
  • the seat is also provided with a releasable locking mechanism to lock the seat in at least the seating position and in the leaning position.
  • the locking mechanism comprises a pair of locking members 32 rotatably mounted to the underside of the mounting plate 13.
  • Each locking member 32 comprises a first rod 33 radially extending from the axis of rotation of the locking member 32 and a second rod 34 radially extending from the axis of rotation of the locking member 32, the second rod 34 being disposed at right angles to the first rod 33.
  • the first rod is formed with a circumferential element 35 adapted to engage a selected one of a plurality of apertures 37 formed in the rearward surface of the respective rearward tubular member 26.
  • the locking member 32 is urged into locking engagement with the aperture 37 of the tubular member 26 by a spring 36 attached to the first radially extending rod 33 at one end and to the mounting plate 13 at its other end. Releasing force is applied to the locking member by means of a line 38 attached at one end to the second rod 34 and at the other end to a spigot 39 radially extending from a rotatable actuating member 40.
  • the rotatable actuating member 40 is rotatably mounted to the mounting plate 13 and provided with a laterally extending handle 41 adjacent the front edge of the mounting plate 13 and is adapted to be actuated by the user.
  • a second embodiment is shown in Figure 4.
  • the second embodiment is of similar construction to the first embodiment and, in the drawings, like numerals are used to denote like parts.
  • the pair of rotatable locking members 32 are replaced by pins 132 adapted to reciprocate within tubular mountings associated with the collars 27.
  • a coil spring 136 is axially associated with each pin 132 to bias the pin 132 into a position adapted to engage a selected one of a plurality of apertures 139 formed in the inner side surface of the respective rearward tubular member 26.
  • Each pin 132 is engaged with the rotatable actuating member 40 in a manner similar to that of the first embodiment by a line 38 which passes through a respective aperture 140 in the mounting plate 13. Thereby, the pin 132 is able it to be reciprocally disengaged from the rearward tubular member 26 by rotation of the rotatable actuating member 40, as previously described.
  • the seat 11 may initially be presented in the normal manner having the cushion 12 relatively horizontal and the squab 16 back so that a user may comfortably sit upon the seat 11.
  • the locking means is released by rotating the actuating rod 40 and the cushion 12 rotated about the planar plate 21 so that the front edge is moved downwardly.
  • the squab 16 is urged forward by the changing configuration of the tubular members 25 until the locking member 32 is locked into the leaning position. In this position the user obtains support while he is standing both from the obliquely angled cushion 12 and from the forwardly displaced squab 16.
  • This manner of operation provides support in a way that allows the user to stand but gives him lateral and rearward support when he is being thrown around in rocky conditions.
  • the user may optionally lock the squab and cushion in a position intermediate the first and second configurations. In this way, the user can also be given some vertical support from the cushion depending upon the relative positioning which is selected.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

A seat (11) having a seat cushion (12) and a squab (16), the seat (11) being adjustable between a first configuration adapted to provide seating accommodation for a user and a second configuration adapted to provide leaning accommodation for a user, wherein in the second configuration, the squab (16) is positioned forwardly of its position in the first configuration and substantially above the forward most position of the seat cushion (12).

Description

PINOTABLE BOAT SEAT
Field of the Invention
The present invention relates to seats where the user often leans against the seat rather than sits upon it. Such seats have common application in the field of aquatic vessels and the invention will hereinafter be described with reference to this application but the invention is by no means limited to this application.
Background Art
Aquatic vessels of many types but especially small powerboats are frequently provided with a seat for the person navigating the boat. However, it is a well- known problem of such seats that they have limited use because the person driving the boat must often stand at the control wheel rather than sit in the seat. This is necessary because of the erratic motion of the boat especially when travelling at speed which requires the driver to adopt a more secure and responsive position than is usually provided by the seat. Other reasons why the driver must stand is that the foredeck is often of such a height relative to the seat that when seated, the driver has only limited visibility of the sea in front. While such seats may be used in the manner for which they were designed when the boat is travelling at slow speeds on calm water this may be opposite from the way the craft is usually manoeuvred.
It is also well known that, especially when the time spent standing is extensive, the driver will often find some support from the seat by leaning against it. While such support assists him, typical seats are not designed to provide any useful support in this way and are uncomfortable.
Within this specification, the term "cushion" in respect of a seat is used to denote the portion of the seat adapted to support the buttocks of a user of the seat.
While commonly the cushion will incorporate some type of padding adapted to accommodate the buttocks comfortably, the term is intended to encompass supports for buttocks which are rigid such as the types often made from plastics material of metal.
The term "squab" is used to denote a portion of the seat adapted to support the back of the user and again may incorporate padding or may be of rigid construction.
DiscEosure of the Invention
Accordingly the present invention resides in a seat having a seat cushion and a squab, the seat being adjustable between a first configuration adapted to provide seating accommodation for a user and a second configuration adapted to provide leaning accommodation for a user, wherein in the second configuration, the squab is positioned forwardly of its position in the first configuration and substantially above the forward most position of the seat cushion.
According to a preferred feature of the invention, the seat cushion is adapted to be pivotally supported from a base structure for pivotal movement about a transverse axis between its first and second positions.
According to a preferred feature of the invention, in its second configuration, the seat cushion is positioned obliquely, the forward edge being at a lower height than the rear edge.
According to a preferred feature of the invention, a linkage is provided between the base structure, the seat cushion and the squab whereby pivotal movement of the seat cushion between the first and second position causes corresponding movement of the squab.
According to a preferred embodiment, the linkage is in the form of a trapezoidal linkage.
According to a preferred embodiment, the linkage is in the form of a parallelogram linkage. According to a preferred embodiment, the linkage comprises a set of arms rotatably engaged with the squab and engaging the cushion to permit relative movement between the cushion and the squab during the pivotal movement of the cushion between the first and second positions.
According to a preferred embodiment, each of the arms of the linkage are slidably received by a collar engaged with the cushion.
According to a preferred feature of the invention, a releasable locking mechanism is provided to retain the seat cushion and squab in at least one of the first position and the second position.
According to a preferred feature of the invention, the releasable locking mechanism is further adapted to retain the seat cushion and squab in at least one selected position intermediate the first position and the second position.
According to a preferred feature of the invention, the releasable locking mechanism is selectably engagable with the linkage .
According to a preferred embodiment, the releasable locking mechanism is associated with at least one of the collars.
According to a preferred embodiment, the locking mechanism comprises at least one reciprocally actuated pin adapted to engage the linkage through a respective collar.
According to a preferred embodiment, the locking mechanism comprises at least one rotatable member having an arm adapted to engage an aperture in the linkage.
The invention will be more fully understood in light of the description of two specific embodiments. Brief Description of the Drawings
The description is made with reference to the accompanying drawings of which:
Figure 1 is a front perspective view of a seat in accordance with the first embodiment showing the cushion and squab in a seating position;
Figure 2 is a front perspective view of a seat in accordance with the first embodiment showing the cushion and squab in a leaning position; and
Figure 3 is a rear perspective view of a seat in accordance with the first embodiment showing the cushion and squab in the leaning position.
Figure 4 is a rear perspective view of a seat in accordance with the second embodiment showing the cushion and squab in the leaning position.
Detailed Description of Specific Embodiment
The embodiment of the invention is directed to a seat adapted for use in a vessel such as a powerboat. As shown in Figures 1 ,2, & 3, the seat 11 comprises a cushion 12 and a squab 16 For convenience, the terms upwards, downwards forwards and rearwards will be used with reference to the seat as installed within the vessel, forward corresponding to the forwards direction of the vessel.
The cushion 12 is secured to a mounting plate 13 and is substantially of a form that is well known in the art. The sides 14 of the mounting plate 13 are upwardly formed to support an upwardly extending cushion-side-support member 15 at each side of the cushion 12 to provide lateral support to the user. In an adaption of the embodiment, the cushion 12 and cushion-side-support members 15 are integrally formed.
The squab 16 is also of substantially conventional form and supported by a back- plate 17. Each side 18 of the back-plate 17 extends forwardly to support a squab- side-support member 19 at each side of the squab 16 to provide lateral support to the user. Again in an adaption of the embodiment, the squab 16 and squab-side support members 19 are integrally formed.
The mounting plate 13 supporting the cushion 12 is mounted to a rectangular planar support plate 21 , the front edge 22 of which is hingedly engaged with the underside of the mounting plate 13 intermediate the front and rear edges thereof to provide a rotational axis A-A of the planar support plate 21 relative to the mounting plate 13, the axis A-A being parallel to the front and rear edges of the mounting plate 13.
To support the seat, the rectangular planar plate 21 is secured to a first end of a pedestal 23, the opposed second end thereof being mounted to the vessel by means of a pedestal base 24. By virtue of the rotatable engagement of the mounting plate 13 to the planar support plate 21, the cushion 12 may be rotated between a substantially horizontal orientation suitable for seating of the user, to an oblique position suitable to support the user in a leaning position.
It should be noted that the embodiment may be easily adapted to other types of mounting other than that of a pedestal since the seat 11 itself is fully supported from the planar plate 21. Other means of mounting the planar plate 21 to the vessel will be suitable and thus the seat is easily adapted to the wide variety of configurations of vessels that are presently available on the market.
A pair of tubular members 25 is rotatably pinned to each side of the planar plate 21. Each tubular member slidingly engages a collar 27 rotatably secured to the upwardly extending side portion 14 of the mounting plate 13. The tubular members 25 are also rotatably pinned to the forwardly extending portion 18 of the back-plate 17 supporting the squab 16. The tubular members 25 of each pair of tubular members are parallel to each other and are pinned to the planar support plate 21 and the side portions 18 of the back-plate 17 so that the four-pinned points of each pair of tubes forms a parallelogram. As a result of the rotatable mounting of the tubular members 25 to both the sides of the planar plate 21 and the sides 18 of the back plate 17 supporting the squab 16, the squab 16 is able to move forwardly / rear-wardly relative to the planar plate 21 while being maintained in substantially the same vertical orientation. In alternative embodiments, the configuration of the four pinned points on each side may be made trapezoidal. By such configuration, the angular orientation of the squab 16 may be made to vary somewhat as it moves forwardly, according to the preferences of the designer.
At the same time, the sliding engagement of the tubular members 25 within the collars 27 attached to the side portions 14 of the mounting plate 13 supporting the cushion 12 provides a configuration whereby when the cushion 12 is rotated relative to planar plate 21 , the tubular members 25 are also forced to rotate relative to the planar plate 21 thereby changing the configuration of the parallelogram so that the squab 16 is urged forward when the front of the cushion 12 is urged from a substantially horizontal position to an oblique position.
To assist the user to move the seat from the seating position to the leaning position, or back, a guide handle 28 is provided, supported by the pins which pin the tubular members to the side portion 18 of the back plate 17
The seat is also provided with a releasable locking mechanism to lock the seat in at least the seating position and in the leaning position. According to the embodiment, the locking mechanism comprises a pair of locking members 32 rotatably mounted to the underside of the mounting plate 13. Each locking member 32 comprises a first rod 33 radially extending from the axis of rotation of the locking member 32 and a second rod 34 radially extending from the axis of rotation of the locking member 32, the second rod 34 being disposed at right angles to the first rod 33. At its end opposed to the axis of rotation, the first rod is formed with a circumferential element 35 adapted to engage a selected one of a plurality of apertures 37 formed in the rearward surface of the respective rearward tubular member 26. The locking member 32 is urged into locking engagement with the aperture 37 of the tubular member 26 by a spring 36 attached to the first radially extending rod 33 at one end and to the mounting plate 13 at its other end. Releasing force is applied to the locking member by means of a line 38 attached at one end to the second rod 34 and at the other end to a spigot 39 radially extending from a rotatable actuating member 40. The rotatable actuating member 40 is rotatably mounted to the mounting plate 13 and provided with a laterally extending handle 41 adjacent the front edge of the mounting plate 13 and is adapted to be actuated by the user.
A second embodiment is shown in Figure 4. The second embodiment is of similar construction to the first embodiment and, in the drawings, like numerals are used to denote like parts. In the second embodiment, the pair of rotatable locking members 32 are replaced by pins 132 adapted to reciprocate within tubular mountings associated with the collars 27. A coil spring 136 is axially associated with each pin 132 to bias the pin 132 into a position adapted to engage a selected one of a plurality of apertures 139 formed in the inner side surface of the respective rearward tubular member 26. Each pin 132 is engaged with the rotatable actuating member 40 in a manner similar to that of the first embodiment by a line 38 which passes through a respective aperture 140 in the mounting plate 13. Thereby, the pin 132 is able it to be reciprocally disengaged from the rearward tubular member 26 by rotation of the rotatable actuating member 40, as previously described.
In use, the seat 11 may initially be presented in the normal manner having the cushion 12 relatively horizontal and the squab 16 back so that a user may comfortably sit upon the seat 11. When the user wishes to alter the configuration so that he can be supported by the seat while he is standing, the locking means is released by rotating the actuating rod 40 and the cushion 12 rotated about the planar plate 21 so that the front edge is moved downwardly. While this is being done, the squab 16 is urged forward by the changing configuration of the tubular members 25 until the locking member 32 is locked into the leaning position. In this position the user obtains support while he is standing both from the obliquely angled cushion 12 and from the forwardly displaced squab 16. This manner of operation provides support in a way that allows the user to stand but gives him lateral and rearward support when he is being thrown around in rocky conditions. By virtue of the plurality of apertures 37 (first embodiment) or aperture 139 (second embodiment), the user may optionally lock the squab and cushion in a position intermediate the first and second configurations. In this way, the user can also be given some vertical support from the cushion depending upon the relative positioning which is selected. It should be appreciated that the scope of the present invention is not to be limited to the particular scope of the embodiments described above. For instance, those skilled in the art will recognize that alternative locking mechanisms and lock actuating mechanisms may be devised from those described with reference to the embodiments. All such variations and others are intended to be within the scope of the invention claimed.
Throughout the specification, unless the context requires otherwise, the word "comprise" or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated integer or group of integers but not the exclusion of any other integer or group of integers.

Claims

The claims defining the invention are as follows:
1. A seat having a seat cushion and a squab, the seat being adjustable between a first configuration adapted to provide seating accommodation for a user and a second configuration adapted to provide leaning accommodation for a user, wherein, in the second configuration, the squab is positioned forwardly of its position in the first configuration and substantially above the forward most position of the seat cushion.
2. A seat as claimed at claim 1 wherein the cushion is adapted to be pivotally supported from a base structure for pivotal movement about a transverse axis between its first and second positions.
3. A seat as claimed at either one of claim 1 or claim 2 wherein, in the second configuration of the seat, the seat cushion is positioned obliquely, the forward edge being at a lower height than the rear edge.
4. A seat as claimed at any one of the preceding claims wherein a releasable locking mechanism is provided to retain the seat cushion and squab in at least one of the first position and the second position.
5. A seat as claimed at claim 9 wherein the releasable locking mechanism is further adapted to retain the seat cushion and squab in at least one selected position intermediate the first position and the second position.
6. A seat as claimed at any one of claims 2 to 5 wherein a linkage is provided between the base structure, the seat cushion and the squab whereby pivotal movement of the seat cushion between the first and second positions causes corresponding movement of the squab.
7. A seat as claimed at claim 6 wherein the linkage is in the form of a trapezoidal linkage.
8. A seat as claimed at claims 6 wherein the linkage is in the form of a parallelogram linkage.
9. A seat as claimed at any one of claims 6, 7 or 8 wherein the linkage comprises a set of arms rotatably engaged with the squab and engaging the cushion to permit relative movement between the cushion and the squab during the pivotal movement of the cushion between the first and second positions.
10. A seat as claimed at claim 9 wherein each of the arms of the linkage are slidably received by a collar engaged with the cushion.
11. A seat as claimed at either one of claims 9 or 10 wherein the releasable locking mechanism is selectably engagable with the linkage.
12. A seat as claimed at claims 11 wherein the releasable locking mechanism is associated with at least one of the collars.
13. A seat as claimed at claims 12 wherein the locking mechanism comprises at least one reciprocally actuated pin adapted to engage the linkage through a respective collar.
14. A seat as claimed at claims 12 wherein the locking mechanism comprises at least one rotatable member having an arm adapted to engage an aperture in the linkage.
15. A seat substantially as herein described.
16. A seat substantially as herein described with reference to the accompanying drawings.
PCT/AU2002/001497 2001-11-06 2002-11-05 Pivotable boat seat WO2003039945A1 (en)

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US10/496,157 US7252336B2 (en) 2001-11-06 2002-11-05 Pivotable boat seat
AU2002335941A AU2002335941B2 (en) 2001-11-06 2002-11-05 Pivotable boat seat

Applications Claiming Priority (2)

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AUPR8691 2001-11-06
AUPR8691A AUPR869101A0 (en) 2001-11-06 2001-11-06 Aquatic seat

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WO2003039945A1 true WO2003039945A1 (en) 2003-05-15

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AUPR869101A0 (en) 2001-11-29
US7252336B2 (en) 2007-08-07
US20050062325A1 (en) 2005-03-24
AU2002335941B2 (en) 2008-07-10

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