EP4222050A1 - Device for lifting or launching a load to or from a boat - Google Patents
Device for lifting or launching a load to or from a boatInfo
- Publication number
- EP4222050A1 EP4222050A1 EP21785887.7A EP21785887A EP4222050A1 EP 4222050 A1 EP4222050 A1 EP 4222050A1 EP 21785887 A EP21785887 A EP 21785887A EP 4222050 A1 EP4222050 A1 EP 4222050A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- platform
- arms
- axis
- rotation
- rotational movement
- 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.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 4
- 230000002441 reversible effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000005021 gait Effects 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/36—Arrangement of ship-based loading or unloading equipment for floating cargo
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/16—Arrangement of ship-based loading or unloading equipment for cargo or passengers of lifts or hoists
Definitions
- the present invention relates to a device for the exit or launching of a load such as a boat to or from a boat, comprising a platform extending in a plane of horizontal gait supported by two parallel arms having free ends mounted in rotation about a horizontal axis X, on yokes intended to allow the fixing of the device on the boat, between a high position of the platform in which the arms s extend in the same plane and a low position of the platform in which they form an angle A with the plane, the device further comprising means designed capable of maintaining the platform in a plane of horizontal appearance during rotational movement of the arms.
- the existing devices cannot be dismantled, are heavy, very cumbersome to transport, and often require many manufacturing steps to cut, bend and assemble the metal sheets from which their constituent elements are designed, these the latter often presenting a complex geometry.
- the design mode of conventional devices involves adjustment means housed in areas that are difficult to access, in particular under or in the arms, which makes the corresponding operations tedious, and the use of a essential professional.
- another drawback inherent in conventional devices is related to the fact that the kinematics used to date requires precise adaptation to each boat, making it necessary to completely redesign each device for each new boat on which it must be installed.
- the invention has sought to provide a device whose manufacturing cost is reduced compared to conventional devices, and whose operating principle allows a design in simple, removable elements, made of light materials, with a view to to facilitate its transport and to limit its size.
- Another object of the invention is to provide a device whose structure is designed to allow easy access to the adjustment means and facilitate their handling, which is easy to assemble and to mount on a boat hull, without requiring expertise or prior training session, and which, moreover, is adaptable to different boat hulls, regardless of additional costs or studies.
- the present invention relates to a device for the exit or launching of a load such as a boat to or from a boat, comprising a platform extending in a plane of horizontal aspect supported by two parallel arms having free ends mounted in rotation about a horizontal axis X, on yokes intended to allow said device to be fixed on said boat, between a high position of the platform in which said arms extend in the same plane and a low position of the platform -shape in which they form an angle A with said plane, said device further comprising:
- a characteristic of the invention is also defined by the fact that the means for controlling the rotational movement of the arms comprise an assembly formed by n pairs of cables, n being greater than or equal to 1, each cable of a pair having one end intended to be fixed to the hull of the boat and being secured to one of the two arms or to the platform.
- said cables are stretched around a set of pulleys.
- the set of pulleys comprises at least one pair of grooved wheels, with an axis perpendicular to the axis X, carried by the carriage.
- the set of pulleys may comprise a plurality of additional sheave wheels, secured to each of the flanges, distributed along each cable of a pair.
- each cable of a pair may have one end fixed to a rod around which it is wound forming x turns, said rod extending perpendicularly to the axis X and being connected to the one of the flanges extending the arms.
- Another characteristic of this device is defined by the fact that its constituent elements can be interconnected by reversible assembly means and can be defined, at least for some of them, by sections of sections of standard form made of a material chosen from the group comprising aluminum, stainless steel, carbon, a composite material.
- FIG. 1 [Fig.1] and [Fig.2] represent front perspective views of an alternative embodiment of the device according to the invention, in which the platform is placed respectively in the high position and in the low position
- FIG. 3 [Fig. 4] are views of the same side of the device of FIG. 1, in which the platform is located respectively in the high position and in the low position
- FIG. 5] and FIG. 6] are views of the other side of the device of Figure 1, in which the platform is located respectively in the high position and in the low position,
- FIG. 7 is a bottom view of part of the device of Figure 1, in which the platform is located in the high position,
- FIG. 8 is a detail view of the means for controlling the rotational movement of the arms and the means for controlling the rotational movement of the platform that the device of FIG. 1 includes,
- FIG. 9] and FIG.10] are respectively bottom and side views of the platform that comprises the device of Figure 1.
- the present invention relates to a device 1 for the exit or launching of a load such as a boat to or from a boat.
- the device 1 comprises a platform 2, extending in a plane of horizontal appearance, supported by two parallel arms 3 having free ends 30.
- the latter are mounted in rotation around a horizontal axis X, on clevises 4 intended to allow the fixing of the device 1 on the boat, so that the arms 3 are movable between a high position of the platform 2 (cf. figs. 1, 3, 5) in which, in the variant embodiment illustrated, they extend in a plane of horizontal appearance and a low position of the platform 2 (cf. figs. 2, 4, 6) in which they extend in a plane forming an angle A with the horizontal.
- means designed capable of maintaining the platform 2 in a plane of horizontal appearance during the rotational movement of the arms 3 are also provided.
- the platform 2 is itself mounted in rotation on these arms 3 around an axis Y, parallel to the axis X. More particularly, this platform 2 is mounted in rotation around the Y axis on flanges 5 extending each of the arms 3.
- the device 1 comprises a single jack 6, with extension rod 7, designed capable of acting simultaneously on means for controlling the rotational displacement of the arms 3 and means for controlling the rotational displacement of the platform 2 to cause a clockwise rotational movement of the arms 3 and simultaneously a counterclockwise rotational movement of the platform 2, or conversely a counterclockwise rotational movement of the arms 3 and simultaneously a rotational movement in the clockwise from platform 2.
- the actuator 6 is mounted under the platform 2, so that its extension rod 7 moves between a position in which it is deployed outside the body of the cylinder 6 and a position in which it is housed in the body of the cylinder 6, along an axis Z, parallel to the axis Y, between the two flanges 5.
- the latter respectively carry a first point of rotation P1 and a second point of rotation P2 of the platform 2 around the axis Y (cf. fig. 7).
- the means for controlling the rotational displacement of the platform 2 comprise a rotation bar 8 having an upper end 80 and a lower end 81 respectively connected, for example by bolting or welding, to a lower face 200 of the platform 2 and to a link 9 itself connected to the lower face 200 of the platform 2 in the vicinity of the flange 5 bearing the second point of rotation P2.
- the rotation bar 8 is arranged under the platform 2 in such a way that its axis S and the axis Z are intersecting, and also so as to allow movement of the extension rod 7 of the cylinder 6 in abutment against the rotation bar 8, throughout its course.
- the extension rod 7 of the cylinder 6 is then able to move between a point P3 and a point P4 that the rotation bar 8 comprises, along the latter, by exerting there a force which progressively causes a rotation of the platform 2 around the axis of rotation Y.
- the points P3 and P4 are specifically chosen in such a way that a straight line D0 passing through P2 and P3 forms angle A with a straight line D1 passing through P2 and P4 (see figures 9 and 10).
- the action of jack 6 on rotation bar 8 is such that platform 2 moves through an angle A, counterclockwise or clockwise, when the extension rod 7 moves in one direction or in the opposite direction between its retracted and deployed positions.
- the means for controlling the rotational movement of the arms 3 comprise two cables 12, each integral with one of the two arms 3 in the variant embodiment illustrated. More specifically, each cable 12 has an end 13 intended, like the yokes 4, to be fixed to the hull of a boat, and an end 15 fixed to a rod 16 around which it is wound forming x turns.
- the rod 16 is connected to one of the flanges 5 extending the arms 3 and extends perpendicular to the axis X.
- each cable 12 is stretched around a set of pulleys distributed along its length. It should also be noted that in accordance with a different variant embodiment, the cables 12 can also be fixed, by their end 15, on either side of the platform 2.
- the set of pulleys comprises a plurality of grooved wheels 17, integral with each of the flanges 5, which allow the cables 12 to be guided along the path defined between their two ends 13 , 15. It further comprises a pair of grooved wheels 14, with an axis perpendicular to the axis X, carried by the carriage 10, and around which each time one of the two cables 12 is wound. In short, these two grooved wheels 14 are moved in translation along the Z axis, in one direction or another between the two flanges 5, under the action of the cylinder 6.
- portion 20 of cable 12 when the rod 7 of jack 6 is in its retracted position, portion 20 of cable 12 has a length LO less than length L1 that it has when rod 7 of jack 6 is in its deployed position.
- the length of the portion 20 of the cables 12 can be modified by increasing or decreasing the number x of turns formed by their end 15 around the rod 16.
- the device 1 makes it possible to proceed quickly and through simple means to a launching or a water outlet of a load, such as a jet-ski, a dinghy, any floating object, etc., capable of being transported by boat.
- a load such as a jet-ski, a dinghy, any floating object, etc.
- the launching from a boat of such a load, through the device 1, is carried out by first placing the load considered on the platform 2 located in its high position.
- the extension rod 7 of the jack 6 is then retracted and housed in the body 18 of the jack 6 (cf. figs. 1, 3, 5 and 7).
- the portion 20 of the cables 2 adopts its length L0, making it possible to maintain the arms 3 in the same plane, for example horizontal in appearance as in the variant embodiment illustrated.
- the actuation of the cylinder 6, leading to the deployment of the extension rod 7 along the axis Z, then has the effect of lengthening the portion 20 of the cables 2.
- a rotation of the arms 3 around the axis X is then possible throughout the stroke performed by the extension rod 7.
- the distance traveled by the latter ultimately determines the angle A formed by the arms 3 with the plane in which they are extended when the platform 2 was in the high position, at the end of their rotational movement.
- a rotation in the opposite direction with respect to the arms 3, and of an angle A of the platform 2 around the axis Y is obtained through the action of the carriage 10 connected to the extension rod 7 , and acting on the rotation bar 8 connected to the platform 2.
- the platform 2 remains in a plane of horizontal appearance throughout the displacement in rotation of the arms 3 causing the movement of the platform 2 from its high position to its low position. Once the latter has been reached, the platform 2 is sufficiently submerged to allow the buoyancy of the load which has previously been placed there and consequently its launching.
- a water outlet of a load can be achieved by installing the latter on the platform 2 placed in its low position, and then actuating the jack 6 in such a way that its extension rod 7 returns to its retracted position inside the body 18.
- This has the effect of causing a shortening of the portion 20 of the cables 12 and a rotation in the opposite direction, for example anti-clockwise, of the arms 3, by an angle A around the X axis.
- Platform 2 then returns to its high position.
- the action of the carriage 10 on the rotation bar 8 causes a rotation, in the opposite direction with respect to the arms 3, by an angle A around the axis Y of the platform 2. The latter remains thus in a horizontal plane throughout the rotational movement of the arms 3.
- the device 1 according to the invention also has the advantage of comprising constituent elements defined, at least for some of them, by sections of standard shape sections made of a material chosen from the group comprising aluminum, stainless steel, carbon, and a composite material and interconnected by reversible joining means.
- the device according to the invention makes it possible to avoid the cylinder synchronization problems inherent in conventional devices requiring the implementation of two cylinders.
- manufacturing costs are reduced thanks to its simplified architecture allowing the use of standard commercial profiles made from light materials such as carbon, aluminum or composite materials.
- the device 1 has a small footprint and is easy to transport or store.
- the device 1 is easy to assemble and mount on the boat, without requiring expertise in the trade, which is not the case for conventional devices. [0032] Furthermore, any adjustment operations are facilitated by better accessibility of the corresponding adjustment means, offered by the possibility of pivoting the platform 2.]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Actuator (AREA)
- Toys (AREA)
- Jib Cranes (AREA)
- Handcart (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2010049A FR3114796B1 (en) | 2020-10-01 | 2020-10-01 | Device for removing or launching a load to or from a boat |
PCT/EP2021/076877 WO2022069595A1 (en) | 2020-10-01 | 2021-09-29 | Device for lifting or launching a load to or from a boat |
Publications (3)
Publication Number | Publication Date |
---|---|
EP4222050A1 true EP4222050A1 (en) | 2023-08-09 |
EP4222050B1 EP4222050B1 (en) | 2024-06-12 |
EP4222050C0 EP4222050C0 (en) | 2024-06-12 |
Family
ID=74871445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21785887.7A Active EP4222050B1 (en) | 2020-10-01 | 2021-09-29 | Device for lifting or launching a load to or from a boat |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4222050B1 (en) |
FR (1) | FR3114796B1 (en) |
WO (1) | WO2022069595A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3140613A1 (en) | 2022-10-10 | 2024-04-12 | Tenderlift | Boat tender launching and lifting platform, integrating a retractable rotating and sliding landing gangway |
FR3146454A1 (en) * | 2023-03-06 | 2024-09-13 | Tenderlift | Device for taking out or launching a load such as a boat to or from a ship |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5613462A (en) * | 1995-01-17 | 1997-03-25 | Schwartz; John B. | Lifting device |
FR2867446B1 (en) * | 2004-03-15 | 2007-06-22 | Tenderlift Sarl | DEVICE FOR CONTROLLING THE MOVEMENT OF A PLATFORM ATTACHED TO THE DOLL OF A PLEASURE VESSEL FOR VERTICALLY MOVING A LOAD WHILE NOW HORIZONTAL |
US9815527B2 (en) * | 2012-06-22 | 2017-11-14 | Robertson & Caine (Pty), Ltd. | Marine lift for multi-hull vessels |
FR3054820B1 (en) * | 2016-08-05 | 2021-04-30 | Tenderlift Sas | VESSEL CONTROL DEVICE AND ASSOCIATED MANUFACTURING PROCESS |
-
2020
- 2020-10-01 FR FR2010049A patent/FR3114796B1/en active Active
-
2021
- 2021-09-29 EP EP21785887.7A patent/EP4222050B1/en active Active
- 2021-09-29 WO PCT/EP2021/076877 patent/WO2022069595A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR3114796A1 (en) | 2022-04-08 |
FR3114796B1 (en) | 2023-11-24 |
WO2022069595A1 (en) | 2022-04-07 |
EP4222050B1 (en) | 2024-06-12 |
EP4222050C0 (en) | 2024-06-12 |
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